/* roulang page: index */
:root {
            --bg: #070E1D;
            --bg2: #0C182E;
            --bg3: #0B1628;
            --panel: rgba(255, 255, 255, 0.045);
            --panel-warm: rgba(255, 131, 69, 0.05);
            --line: rgba(160, 190, 230, 0.14);
            --line-strong: rgba(160, 190, 230, 0.24);
            --ice: #62D0FF;
            --ice2: #3BA7FF;
            --coral: #FF8345;
            --coral2: #FF9E62;
            --danger: #FF6B6B;
            --text: #E6F0FF;
            --sub: #A6BBDC;
            --muted: #7089B0;
            --radius: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow: 0 24px 70px rgba(0, 0, 0, 0.32);
            --shadow-glow: 0 12px 38px rgba(255, 131, 69, 0.28);
            --container-max: 1240px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "MiSans", -apple-system, "Segoe UI", sans-serif;
            --font-num: "Inter", "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background:
                radial-gradient(900px 440px at 88% -120px, rgba(98, 208, 255, 0.08), transparent 60%),
                radial-gradient(720px 520px at -4% 42%, rgba(59, 167, 255, 0.055), transparent 55%),
                linear-gradient(rgba(159, 210, 255, 0.026) 1px, transparent 1px),
                linear-gradient(90deg, rgba(159, 210, 255, 0.026) 1px, transparent 1px), var(--bg);
            background-size: auto, auto, 48px 48px, 48px 48px, auto;
            color: var(--text);
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s cubic-bezier(.22, .61, .36, 1);
        }

        button,
        input {
            font-family: inherit;
        }

        :focus-visible {
            outline: 1.5px solid var(--ice);
            outline-offset: 2px;
        }

        .container {
            max-width: var(--container-max);
        }

        .skip-link {
            position: fixed;
            top: -80px;
            left: 16px;
            z-index: 2000;
            background: var(--bg3);
            color: var(--ice);
            padding: 10px 18px;
            border-radius: 0 0 12px 12px;
            border: 1px solid var(--line);
            transition: top .2s ease;
        }

        .skip-link:focus {
            top: 0;
        }

        .top-ticker {
            background: rgba(8, 16, 32, 0.82);
            border-bottom: 1px solid var(--line);
            backdrop-filter: blur(10px);
            min-height: 40px;
            display: flex;
            align-items: center;
            color: var(--sub);
            font-size: 13px;
            letter-spacing: .01em;
            position: relative;
            z-index: 920;
        }

        .ticker-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
        }

        .ticker-copy {
            margin: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            color: #B8CBEA;
        }

        .ticker-copy i {
            color: var(--ice);
            margin-right: 7px;
        }

        .cd {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
            font-variant-numeric: tabular-nums;
        }

        .cd-cell {
            display: inline-flex;
            align-items: baseline;
            gap: 3px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(160, 190, 230, 0.14);
            border-radius: 8px;
            padding: 2px 7px;
            color: var(--ice);
            line-height: 1.3;
        }

        .cd-cell b {
            font-family: var(--font-num);
            font-size: 18px;
            font-weight: 600;
            min-width: 1.4em;
            text-align: center;
        }

        .cd-cell em {
            font-style: normal;
            font-size: 11px;
            color: var(--muted);
        }

        .cd.is-urgent .cd-cell {
            animation: urgentPulse 1.6s ease-in-out infinite;
        }

        .cd.is-urgent .cd-cell:nth-child(4) {
            animation-delay: .4s;
        }

        @keyframes urgentPulse {
            0%,
            100% {
                box-shadow: 0 0 0 rgba(255, 158, 98, 0);
                border-color: rgba(160, 190, 230, .18);
            }
            50% {
                box-shadow: 0 0 14px rgba(255, 158, 98, 0.28);
                border-color: rgba(255, 158, 98, .55);
            }
        }

        .site-navbar {
            position: sticky;
            top: 0;
            z-index: 900;
            border-bottom: 1px solid transparent;
            background: rgba(6, 13, 26, 0.4);
            transition: background .25s ease, border-color .25s ease, box-shadow .25s ease;
        }

        .site-navbar.scrolled {
            background: rgba(6, 12, 24, 0.86);
            backdrop-filter: blur(20px) saturate(1.2);
            border-bottom-color: var(--line);
            box-shadow: 0 14px 44px rgba(0, 0, 0, 0.28);
        }

        .navbar {
            min-height: 76px;
            padding: 0;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 12px;
            width: fit-content;
        }

        .brand-mark {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: rgba(98, 208, 255, 0.12);
            border: 1px solid rgba(98, 208, 255, 0.46);
            position: relative;
            display: block;
            box-shadow: 0 0 26px rgba(59, 167, 255, 0.2);
            flex-shrink: 0;
        }

        .brand-mark::before {
            content: "";
            position: absolute;
            left: 10px;
            top: 9px;
            width: 15px;
            height: 15px;
            border: 2px solid var(--ice);
            border-radius: 50%;
            box-shadow: 0 0 10px rgba(98, 208, 255, .5);
        }

        .brand-mark::after {
            content: "";
            position: absolute;
            left: 17px;
            top: 15px;
            width: 6px;
            height: 6px;
            transform: rotate(45deg);
            background: var(--coral);
            border-radius: 2px 0 0 0;
            box-shadow: 0 0 8px rgba(255, 131, 69, .6);
        }

        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .brand-title {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: .02em;
            color: var(--text);
        }

        .brand-sub {
            font-size: 11px;
            font-weight: 500;
            letter-spacing: .12em;
            color: var(--muted);
            margin-top: 4px;
        }

        .brand:hover .brand-title {
            color: var(--ice);
        }

        .nav-primary {
            display: flex;
            align-items: center;
            gap: 2px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-primary a {
            position: relative;
            display: inline-flex;
            align-items: center;
            padding: 9px 14px;
            border-radius: var(--radius-sm);
            color: var(--sub);
            font-size: 15px;
            font-weight: 500;
            white-space: nowrap;
            transition: color .2s ease, background .2s ease;
        }

        .nav-primary a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.04);
        }

        .nav-primary a.active {
            color: var(--ice);
        }

        .nav-primary a.active::before {
            content: "";
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--ice);
            box-shadow: 0 0 10px var(--ice);
            margin-right: 7px;
            display: inline-block;
            vertical-align: middle;
        }

        .navbar .nav-action {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            color: var(--ice);
            background: transparent;
            border: 0;
            padding: 7px 4px;
            font-size: 14px;
            font-weight: 500;
            border-radius: 3px;
            margin-left: 8px;
            transition: color .2s ease;
        }

        .navbar .nav-action i {
            font-size: 12px;
            transition: transform .2s ease;
        }

        .navbar .nav-action:hover {
            color: #ffffff;
        }

        .navbar .nav-action:hover i {
            transform: translateX(4px);
        }

        .navbar-toggler {
            border: 1px solid var(--line-strong);
            background: transparent;
            width: 46px;
            height: 38px;
            border-radius: var(--radius-sm);
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .navbar-toggler:hover {
            border-color: var(--ice);
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(98, 208, 255, .18);
        }

        .toggler-icon {
            width: 22px;
            height: 2px;
            background: var(--ice);
            display: block;
            position: relative;
            transition: background .2s;
        }

        .toggler-icon::before,
        .toggler-icon::after {
            content: "";
            width: 22px;
            height: 2px;
            background: var(--ice);
            display: block;
            position: absolute;
            left: 0;
            transition: transform .2s ease, top .2s ease;
        }

        .toggler-icon::before {
            top: -7px;
        }

        .toggler-icon::after {
            top: 7px;
        }

        .navbar-toggler[aria-expanded="true"] .toggler-icon {
            background: transparent;
        }

        .navbar-toggler[aria-expanded="true"] .toggler-icon::before {
            top: 0;
            transform: rotate(45deg);
        }

        .navbar-toggler[aria-expanded="true"] .toggler-icon::after {
            top: 0;
            transform: rotate(-45deg);
        }

        .hero {
            position: relative;
            overflow: hidden;
            padding: 110px 0 84px;
        }

        .hero-background {
            position: absolute;
            inset: 0;
            z-index: -2;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            transform: scale(1.02);
        }

        .hero::after {
            content: "";
            position: absolute;
            inset: 0;
            z-index: -1;
            background:
                radial-gradient(900px 560px at 78% 12%, rgba(98, 208, 255, 0.16), transparent 68%),
                radial-gradient(700px 440px at 8% 88%, rgba(255, 131, 69, 0.1), transparent 60%),
                linear-gradient(90deg, rgba(7, 14, 29, 0.94) 0%, rgba(7, 14, 29, 0.72) 46%, rgba(7, 14, 29, 0.5) 100%),
                linear-gradient(0deg, rgba(7, 14, 29, 0.86) 0%, rgba(7, 14, 29, 0.1) 100%);
        }

        .hero-grid {
            display: grid;
            grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
            gap: 76px;
            align-items: center;
        }

        .hero-content {
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            padding: 7px 14px;
            border-radius: 999px;
            border: 1px solid rgba(98, 208, 255, 0.4);
            background: rgba(98, 208, 255, 0.08);
            color: var(--ice);
            font-size: 13px;
            font-weight: 500;
            gap: 8px;
            margin-bottom: 30px;
            letter-spacing: .04em;
        }

        .hero-badge i {
            font-size: 11px;
        }

        .hero h1 {
            max-width: 840px;
            margin: 0 0 24px;
            font-size: clamp(40px, 4.85vw, 58px);
            letter-spacing: .02em;
            line-height: 1.22;
            font-weight: 700;
            color: var(--text);
            text-wrap: balance;
        }

        .hero-lead {
            margin: 0 0 34px;
            color: var(--sub);
            font-size: 19px;
            line-height: 1.9;
            max-width: 600px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            border-radius: var(--radius-md);
            font-weight: 600;
            line-height: 1;
            letter-spacing: .01em;
            transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
            border: 1px solid transparent;
        }

        .btn-coral {
            background: linear-gradient(135deg, var(--coral) 0%, var(--coral2) 100%);
            color: #fff;
            box-shadow: var(--shadow-glow);
            min-height: 50px;
            padding: 0 28px;
        }

        .btn-coral:hover {
            transform: translateY(-2px);
            background: linear-gradient(135deg, #ff945a 0%, #ffae78 100%);
            box-shadow: 0 18px 44px rgba(255, 131, 69, 0.38);
            color: #fff;
        }

        .btn-coral:active {
            transform: translateY(0);
            box-shadow: 0 6px 16px rgba(255, 131, 69, 0.22);
        }

        .btn-glass {
            min-height: 50px;
            padding: 0 26px;
            background: rgba(255, 255, 255, 0.04);
            border-color: rgba(160, 190, 230, 0.3);
            color: var(--sub);
        }

        .btn-glass:hover {
            border-color: var(--ice);
            background: rgba(98, 208, 255, 0.08);
            color: var(--ice);
            transform: translateY(-2px);
        }

        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 18px 34px;
            margin-top: 48px;
            padding-top: 22px;
            border-top: 1px solid var(--line);
        }

        .trust-item {
            color: var(--sub);
            font-size: 13.5px;
            line-height: 1.7;
        }

        .trust-item strong {
            display: block;
            color: #BFD2F0;
            font-weight: 600;
            font-size: 13px;
        }

        .trust-item span {
            color: var(--ice);
        }

        .hero-visual {
            position: relative;
        }

        .visual-panel {
            position: relative;
            border: 1px solid rgba(160, 190, 230, 0.2);
            border-radius: 26px;
            background: rgba(10, 20, 40, 0.42);
            backdrop-filter: blur(22px) saturate(1.2);
            box-shadow: var(--shadow);
            padding: 30px 29px 24px;
            overflow: hidden;
        }

        .visual-panel::before {
            content: "";
            position: absolute;
            inset: 0;
            border-radius: 26px;
            background:
                linear-gradient(135deg, rgba(98, 208, 255, .12) 0%, transparent 42%),
                linear-gradient(325deg, rgba(255, 131, 69, .12) 0%, transparent 42%);
            pointer-events: none;
        }

        .visual-top {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--line);
        }

        .visual-title {
            display: flex;
            align-items: center;
            gap: 9px;
            color: #EFFFFF;
            font-weight: 600;
            font-size: 14px;
        }

        .visual-dots {
            display: flex;
            gap: 5px;
            align-items: center;
        }

        .visual-dots i {
            display: block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .22);
        }

        .visual-dots i:first-child {
            background: #FF6B6B;
        }

        .visual-dots i:nth-child(2) {
            background: #FFC278;
        }

        .visual-dots i:last-child {
            background: #4BE0A5;
        }

        .visual-status {
            position: absolute;
            right: 0;
            top: 0;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: #8CE3D0;
            font-size: 12px;
            background: rgba(75, 224, 165, 0.1);
            border: 1px solid rgba(75, 224, 165, 0.3);
            border-radius: 999px;
            padding: 4px 11px;
        }

        .visual-status i {
            font-size: 8px;
        }

        .visual-body {
            position: relative;
            padding: 20px 0 6px;
        }

        .visual-monitor-line {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 14px 0;
            border-bottom: 1px solid rgba(160, 190, 230, .11);
        }

        .visual-monitor-line:last-child {
            border-bottom: 0;
        }

        .visual-labels {
            display: flex;
            flex-direction: column;
            gap: 3px;
        }

        .visual-labels strong {
            font-size: 14px;
            font-weight: 600;
            color: #D9E8FF;
        }

        .visual-labels small {
            font-size: 12px;
            color: var(--muted);
        }

        .visual-tag {
            font-size: 12px;
            color: var(--ice);
            border: 1px solid rgba(98, 208, 255, .3);
            background: rgba(98, 208, 255, .05);
            padding: 4px 9px;
            border-radius: 999px;
            white-space: nowrap;
        }

        .visual-tag.warm {
            color: var(--coral2);
            border-color: rgba(255, 158, 98, .4);
        }

        .visual-bottom-note {
            margin-top: 20px;
            border-top: 1px dashed var(--line);
            padding: 13px 2px 0;
            font-size: 12px;
            color: var(--muted);
            text-align: right;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
        }

        .visual-bottom-note i {
            color: var(--muted);
            font-size: 10px;
        }

        .feature-section,
        .gallery-section,
        .faq-section,
        .feed-section {
            padding: 96px 0;
            scroll-margin-top: 86px;
        }

        .feature-section {
            background: linear-gradient(180deg, rgba(12, 24, 46, 0.34) 0%, transparent 70%);
        }

        .section-head {
            margin-bottom: 46px;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--coral2);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .08em;
            margin-bottom: 14px;
        }

        .eyebrow::before {
            content: "";
            display: inline-block;
            width: 22px;
            height: 1px;
            background: var(--coral);
            opacity: .8;
        }

        .section-title {
            font-size: clamp(28px, 3.1vw, 38px);
            font-weight: 700;
            line-height: 1.36;
            color: #F1F7FF;
            margin: 0 0 18px;
            letter-spacing: .01em;
            text-wrap: balance;
        }

        .section-lead {
            font-size: 17px;
            color: var(--sub);
            line-height: 1.85;
            margin-bottom: 0;
            max-width: 760px;
        }

        .feature-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 4px 78px;
            margin-top: 34px;
        }

        .feature-item {
            padding: 30px 0 18px;
            border-top: 1px solid var(--line);
        }

        .feature-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 14px;
            background: rgba(98, 208, 255, 0.08);
            border: 1px solid rgba(98, 208, 255, 0.3);
            color: var(--ice);
            font-family: var(--font-num);
            font-size: 16px;
            font-weight: 600;
            letter-spacing: .03em;
            margin-bottom: 16px;
        }

        .feature-item:nth-child(even) .feature-num {
            background: rgba(255, 131, 69, 0.08);
            border-color: rgba(255, 158, 98, 0.4);
            color: var(--coral2);
        }

        .feature-item h3 {
            font-size: 21px;
            font-weight: 600;
            line-height: 1.4;
            color: #EAF3FF;
            margin-bottom: 12px;
        }

        .feature-item p {
            margin: 0;
            color: var(--sub);
            font-size: 15.5px;
            line-height: 1.8;
        }

        .gallery-section {
            background: rgba(11, 24, 46, 0.18);
            border-top: 1px solid rgba(160, 190, 230, .1);
            border-bottom: 1px solid rgba(160, 190, 230, .1);
        }

        .gallery-grid {
            display: grid;
            grid-template-columns: 1.3fr 1fr 1fr;
            grid-template-rows: 246px 246px;
            gap: 20px;
            margin-top: 0;
        }

        .gallery-card {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius);
            border: 1px solid rgba(160, 190, 230, 0.18);
            background: #0B162C;
            min-height: 200px;
        }

        .gallery-card .cover-img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .45s cubic-bezier(.19, 1, .22, 1), filter .45s ease;
        }

        .gallery-card::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7, 14, 29, .06) 0%, rgba(7, 14, 29, .09) 38%, rgba(7, 14, 29, .82) 100%);
            border-radius: var(--radius);
            transition: background .4s ease;
        }

        .gallery-card::before {
            content: "";
            position: absolute;
            inset: 0;
            border-radius: var(--radius);
            box-shadow: inset 0 0 0 rgba(98, 208, 255, 0);
            transition: box-shadow .3s ease;
            z-index: 2;
            pointer-events: none;
        }

        .gallery-card:hover .cover-img {
            transform: scale(1.06);
        }

        .gallery-card:hover::before {
            box-shadow: inset 0 0 0 1px rgba(98, 208, 255, 0.65);
        }

        .gallery-card.featured {
            grid-column: 1 / 2;
            grid-row: 1 / 3;
        }

        .gallery-card.card-sm-1 {
            grid-column: 2 / 3;
            grid-row: 1 / 2;
        }

        .gallery-card.card-sm-2 {
            grid-column: 3 / 4;
            grid-row: 1 / 2;
        }

        .gallery-card.card-sm-3 {
            grid-column: 2 / 4;
            grid-row: 2 / 3;
        }

        .gallery-info {
            position: absolute;
            left: 22px;
            right: 22px;
            bottom: 18px;
            z-index: 3;
        }

        .gallery-info strong {
            display: block;
            font-size: 17px;
            font-weight: 600;
            color: #F3F8FF;
            line-height: 1.5;
            margin-bottom: 4px;
        }

        .gallery-info small,
        .gallery-info span {
            color: #C9D9F0;
            font-size: 12.5px;
            display: block;
            max-width: 90%;
        }

        .cta-section {
            padding: 110px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            pointer-events: none;
            background:
                radial-gradient(600px 300px at 85% 20%, rgba(255, 131, 69, .14), transparent 60%),
                radial-gradient(520px 320px at 10% 85%, rgba(98, 208, 255, .1), transparent 56%),
                url('/assets/images/backpic/back-2.png');
            background-size: auto, auto, cover;
            background-position: center;
            opacity: .32;
            z-index: 0;
        }

        .cta-section::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7, 14, 29, .52), rgba(7, 14, 29, .84));
            z-index: 0;
        }

        .cta-card {
            position: relative;
            z-index: 2;
            background: rgba(9, 19, 36, 0.72);
            backdrop-filter: blur(20px) saturate(1.1);
            border: 1px solid rgba(160, 190, 230, .24);
            border-radius: 28px;
            box-shadow: var(--shadow);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 42px;
            padding: 54px 58px;
        }

        .cta-content {
            max-width: 720px;
        }

        .cta-content .eyebrow {
            color: var(--coral2);
        }

        .cta-content h2 {
            font-size: clamp(27px, 3vw, 36px);
            font-weight: 700;
            line-height: 1.4;
            color: #F6FAFF;
            margin: 8px 0 16px;
        }

        .cta-content p {
            margin: 0 0 8px;
            color: var(--sub);
            font-size: 16px;
            line-height: 1.85;
        }

        .cta-note {
            margin: 16px 0 0;
            font-size: 13px;
            color: var(--muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .cta-note i {
            color: var(--coral2);
        }

        .cta-action {
            flex-shrink: 0;
            display: flex;
            flex-direction: column;
            align-items: flex-end;
            gap: 12px;
        }

        .cta-action .btn {
            min-height: 54px;
            padding: 0 34px;
            font-size: 16px;
        }

        .cta-link {
            color: var(--muted);
            font-size: 13px;
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        .cta-link:hover {
            color: var(--ice);
        }

        .faq-section {
            border-top: 1px solid rgba(160, 190, 230, .1);
            background: linear-gradient(180deg, rgba(12, 24, 46, .28), transparent 62%);
        }

        .faq-grid {
            margin-top: 12px;
        }

        .faq-side {
            padding-right: 54px;
        }

        .faq-side .section-lead {
            margin-bottom: 30px;
        }

        .faq-side-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-side-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--sub);
            font-size: 14px;
            line-height: 1.7;
        }

        .faq-side-list i {
            color: var(--ice);
            font-size: 13px;
            margin-top: 5px;
            width: 16px;
        }

        .faq-panel {
            border: 1px solid var(--line);
            border-radius: 22px;
            background: rgba(9, 18, 35, 0.76);
            padding: 8px 20px;
            overflow: hidden;
        }

        .accordion-item {
            background: transparent;
            border-bottom: 1px solid rgba(160, 190, 230, .12);
        }

        .accordion-item:last-child {
            border-bottom: 0;
        }

        .accordion-button {
            min-height: 62px;
            padding: 16px 4px;
            background: transparent;
            color: #DAE7FF;
            font-weight: 500;
            font-size: 16px;
            text-align: left;
            box-shadow: none;
            border-radius: 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .accordion-button:hover {
            background: rgba(255, 255, 255, 0.025);
            color: #fff;
        }

        .accordion-button:not(.collapsed) {
            color: var(--ice);
            background: transparent;
            box-shadow: none;
        }

        .accordion-button:focus {
            border: 0;
            box-shadow: 0 0 0 2px rgba(98, 208, 255, 0.28);
        }

        .accordion-button::after {
            content: "+";
            background-image: none;
            width: 24px;
            height: 24px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--coral2);
            font-size: 22px;
            font-weight: 300;
            line-height: 1;
            transform: rotate(0deg);
            transition: transform .22s ease;
            margin-left: 16px;
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
            color: var(--ice);
        }

        .accordion-body {
            padding: 4px 42px 22px 6px;
            color: var(--sub);
            font-size: 15px;
            line-height: 1.9;
        }

        .feed-section {
            padding-top: 0;
        }

        .feed-layout {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 64px;
            align-items: start;
        }

        .feed-side {
            position: sticky;
            top: 110px;
        }

        .feed-list {
            padding: 0 0 0 6px;
        }

        .feed-item {
            border-bottom: 1px solid rgba(160, 190, 230, .13);
            padding: 22px 4px;
        }

        .feed-item:first-child {
            padding-top: 0;
        }

        .feed-title {
            display: block;
            color: #E3EDFB;
            font-size: 19px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 8px;
        }

        .feed-title:hover {
            color: var(--ice);
        }

        .feed-desc {
            color: var(--sub);
            font-size: 14.5px;
            line-height: 1.75;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }

        .feed-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--muted);
            font-size: 13px;
            font-variant-numeric: tabular-nums;
        }

        .feed-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 3px 11px;
            border-radius: 999px;
            border: 1px solid rgba(98, 208, 255, 0.26);
            color: var(--ice);
            background: rgba(98, 208, 255, 0.06);
            font-size: 12px;
        }

        .feed-detail {
            margin-left: auto;
            color: var(--muted);
        }

        .feed-detail i {
            color: var(--ice);
            font-size: 12px;
            margin-left: 4px;
            transition: transform .2s ease;
        }

        .feed-detail:hover {
            color: var(--ice);
        }

        .feed-detail:hover i {
            transform: translateX(4px);
        }

        .empty-feed {
            border: 1px dashed rgba(160, 190, 230, .32);
            border-radius: 16px;
            background: rgba(255, 255, 255, .02);
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 160px;
            color: var(--muted);
            font-size: 15px;
            padding: 48px;
            letter-spacing: .02em;
        }

        .site-footer {
            border-top: 1px solid var(--line);
            background: rgba(5, 10, 20, 0.86);
            padding: 70px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 0.8fr 0.8fr;
            gap: 44px;
        }

        .footer-brand .brand-text {
            margin-top: 16px;
            color: #F0F6FF;
        }

        .footer-brand .footer-desc {
            margin: 22px 0 0;
            max-width: 400px;
            color: var(--muted);
            font-size: 14px;
            line-height: 1.85;
        }

        .footer-heading {
            margin: 0 0 18px;
            font-size: 15px;
            font-weight: 600;
            color: #C7D9F4;
            letter-spacing: .02em;
            padding-top: 2px;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 11px;
        }

        .footer-links a,
        .footer-links span {
            color: var(--muted);
            font-size: 14px;
        }

        .footer-links a {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .footer-links a:hover {
            color: var(--ice);
        }

        .footer-links a::before {
            content: "";
            width: 4px;
            height: 4px;
            background: var(--ice2);
            border-radius: 50%;
            opacity: .75;
            flex-shrink: 0;
        }

        .footer-bottom {
            margin-top: 62px;
            border-top: 1px solid rgba(160, 190, 230, .1);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            color: var(--muted);
            font-size: 13px;
        }

        .footer-copy a,
        .footer-domain {
            color: #8FA6C9;
        }

        .modal-content {
            background: rgba(9, 19, 38, 0.96);
            border: 1px solid rgba(160, 190, 230, .22);
            border-radius: 24px;
            color: var(--text);
            box-shadow: var(--shadow);
            backdrop-filter: blur(22px);
        }

        .modal-header {
            border-bottom: 1px solid var(--line);
            padding: 24px 28px 18px;
        }

        .modal-title {
            font-weight: 600;
            font-size: 21px;
            color: var(--text);
            line-height: 1.5;
        }

        .modal-body {
            padding: 26px 28px 18px;
        }

        .modal-body p {
            color: var(--sub);
            margin-bottom: 24px;
            font-size: 14.5px;
        }

        .btn-close {
            filter: invert(1) grayscale(1) brightness(1.4);
            opacity: .8;
        }

        .btn-close:focus {
            box-shadow: 0 0 0 3px rgba(98, 208, 255, .4);
        }

        .lead-form .form-label {
            color: var(--sub);
            font-size: 14px;
            margin-bottom: 6px;
        }

        .lead-form .form-control {
            background: transparent;
            border: 0;
            border-bottom: 1px solid rgba(160, 190, 230, .36);
            padding: 12px 2px;
            border-radius: 0;
            color: #fff;
            font-size: 16px;
            box-shadow: none;
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .lead-form .form-control::placeholder {
            color: rgba(160, 190, 230, .5);
        }

        .lead-form .form-control:focus {
            border-bottom-color: var(--ice);
            box-shadow: 0 1px 0 rgba(98, 208, 255, .44);
            background: transparent;
        }

        .form-success {
            margin-top: 18px;
            padding: 12px 15px;
            border-radius: 12px;
            background: rgba(75, 224, 165, .1);
            border: 1px solid rgba(75, 224, 165, .24);
            color: #B1F0DD;
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .modal-footer {
            border-top: 1px solid var(--line);
            padding: 16px 28px 24px;
        }

        .btn-ghost-link {
            color: var(--muted);
            font-weight: 500;
        }

        .btn-ghost-link:hover {
            color: var(--ice);
        }

        @media (max-width: 1199.98px) {
            .nav-primary a {
                padding: 9px 11px;
                font-size: 14.5px;
            }

            .navbar .nav-action {
                margin-left: 2px;
            }

            .hero {
                padding-top: 88px;
            }

            .hero-grid {
                gap: 52px;
            }

            .feature-grid {
                gap: 4px 46px;
            }
        }

        @media (max-width: 991.98px) {
            .navbar-collapse {
                position: absolute;
                left: 0;
                right: 0;
                top: 100%;
                z-index: 950;
                background: rgba(5, 12, 23, 0.98);
                backdrop-filter: blur(24px);
                border-bottom: 1px solid var(--line);
                border-top: 1px solid rgba(160, 190, 230, .08);
                padding: 18px 22px 24px;
                box-shadow: 0 30px 60px rgba(0, 0, 0, .42);
            }

            .nav-primary {
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
                margin: 0 0 16px;
            }

            .nav-primary a {
                justify-content: flex-start;
                padding: 13px 12px;
                font-size: 16px;
                border-bottom: 1px solid rgba(160, 190, 230, .08);
                border-radius: 0;
            }

            .nav-primary a.active::before {
                width: 5px;
                height: 5px;
            }

            .nav-primary a:last-child {
                border-bottom: 0;
            }

            .navbar .nav-action {
                justify-content: center;
                border-top: 1px solid rgba(160, 190, 230, .1);
                padding-top: 14px;
                margin-left: 0;
                color: var(--ice);
                width: 100%;
            }

            .navbar .nav-action i {
                display: block;
            }

            .hero-grid {
                grid-template-columns: 1fr;
                gap: 56px;
            }

            .hero::after {
                background: radial-gradient(640px 380px at 82% 16%, rgba(98, 208, 255, 0.14), transparent 70%),
                    linear-gradient(90deg, rgba(7, 14, 29, .92) 0%, rgba(7, 14, 29, .8) 100%);
            }

            .hero-visual {
                max-width: 620px;
            }

            .feature-grid {
                grid-template-columns: 1fr;
                gap: 2px;
            }

            .gallery-grid {
                grid-template-columns: 1fr 1fr;
                grid-template-rows: 220px 220px 220px;
            }

            .gallery-card.featured {
                grid-column: 1 / 3;
                grid-row: 1 / 2;
            }

            .gallery-card.card-sm-1 {
                grid-column: 1 / 2;
                grid-row: 2 / 3;
            }

            .gallery-card.card-sm-2 {
                grid-column: 2 / 3;
                grid-row: 2 / 3;
            }

            .gallery-card.card-sm-3 {
                grid-column: 1 / 3;
                grid-row: 3 / 4;
            }

            .cta-card {
                flex-direction: column;
                align-items: flex-start;
                padding: 40px 32px;
                gap: 26px;
            }

            .cta-action {
                align-items: flex-start;
            }

            .faq-side {
                padding-right: 0;
                margin-bottom: 34px;
            }

            .feed-layout {
                grid-template-columns: 1fr;
                gap: 26px;
            }

            .feed-side {
                position: static;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }
        }

        @media (max-width: 767.98px) {
            .top-ticker {
                font-size: 12px;
            }

            .ticker-copy {
                max-width: 56%;
            }

            .ticker-copy i,
            .ticker-copy .ticker-hide-1 {
                display: none;
            }

            .cd-cell {
                padding: 1px 5px;
            }

            .cd-cell b {
                font-size: 15px;
                min-width: 1.2em;
            }

            .cd-cell em {
                font-size: 10px;
            }

            .navbar {
                min-height: 68px;
            }

            .brand-mark {
                width: 34px;
                height: 34px;
                border-radius: 10px;
            }

            .brand-mark::before {
                left: 8px;
                top: 7px;
                width: 13px;
                height: 13px;
            }

            .brand-mark::after {
                left: 15px;
                top: 13px;
            }

            .brand-title {
                font-size: 18px;
            }

            .hero {
                padding: 62px 0 56px;
            }

            .hero-badge {
                margin-bottom: 20px;
                font-size: 12px;
            }

            .hero h1 {
                font-size: 32px;
                line-height: 1.31;
                margin-bottom: 16px;
            }

            .hero-lead {
                font-size: 16px;
                line-height: 1.85;
                margin-bottom: 26px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .btn-coral,
            .btn-glass {
                width: 100%;
            }

            .hero-trust {
                flex-direction: column;
                gap: 11px;
                margin-top: 32px;
                padding-top: 18px;
            }

            .trust-item {
                font-size: 13px;
            }

            .hero-visual {
                display: none;
            }

            .feature-section,
            .gallery-section,
            .faq-section,
            .feed-section {
                padding: 68px 0;
            }

            .section-title {
                font-size: 26px;
                line-height: 1.4;
                margin-bottom: 14px;
            }

            .section-lead {
                font-size: 15px;
                line-height: 1.8;
            }

            .feature-item {
                padding-top: 24px;
                padding-bottom: 8px;
            }

            .feature-num {
                width: 36px;
                height: 36px;
                border-radius: 11px;
                font-size: 14px;
                margin-bottom: 12px;
            }

            .feature-item h3 {
                font-size: 18px;
                margin-bottom: 8px;
            }

            .feature-item p {
                font-size: 14.5px;
            }

            .gallery-grid {
                grid-template-columns: 1fr;
                grid-template-rows: 220px 190px 190px 190px;
            }

            .gallery-card.featured,
            .gallery-card.card-sm-1,
            .gallery-card.card-sm-2,
            .gallery-card.card-sm-3 {
                grid-column: 1 / 2;
                grid-row: auto;
            }

            .gallery-card.card-sm-1 {
                grid-row: 2 / 3;
            }

            .gallery-card.card-sm-2 {
                grid-row: 3 / 4;
            }

            .gallery-card.card-sm-3 {
                grid-row: 4 / 5;
            }

            .cta-section {
                padding: 76px 0;
            }

            .cta-card {
                padding: 32px 22px;
                border-radius: 20px;
            }

            .cta-content h2 {
                font-size: 24px;
            }

            .cta-content p,
            .cta-note {
                font-size: 14px;
            }

            .cta-action .btn {
                width: 100%;
                padding: 0 12px;
            }

            .faq-panel {
                margin: 0 -4px;
            }

            .accordion-button {
                min-height: 58px;
                font-size: 15px;
                padding: 12px 2px;
            }

            .accordion-body {
                font-size: 14px;
                padding-right: 8px;
            }

            .feed-item {
                padding: 20px 0;
            }

            .feed-title {
                font-size: 17px;
            }

            .feed-desc {
                font-size: 14px;
            }

            .feed-meta {
                flex-wrap: wrap;
                gap: 8px;
            }

            .feed-detail {
                margin-left: 0;
                width: 100%;
            }

            .empty-feed {
                padding: 40px 18px;
                font-size: 14px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .site-footer {
                padding-top: 52px;
                padding-bottom: 24px;
            }

            .footer-bottom {
                align-items: flex-start;
                flex-direction: column;
                gap: 6px;
            }
        }

        @media (max-width: 440px) {
            .ticker-copy {
                max-width: 48%;
            }

            .nav-primary a {
                font-size: 15px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: .01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: .01ms !important;
            }

            html {
                scroll-behavior: auto;
            }
        }

/* roulang page: article */
:root {
        --bg-deep: #070e1d;
        --bg-panel: #0c182e;
        --bg-mute: rgba(255, 255, 255, 0.04);
        --bg-mute-strong: rgba(255, 255, 255, 0.07);
        --line: rgba(255, 255, 255, 0.09);
        --line-strong: rgba(255, 255, 255, 0.16);
        --ice: #62d0ff;
        --ice-strong: #3ba7ff;
        --orange: #ff8d54;
        --orange-strong: #ff6536;
        --text-main: #e8f1ff;
        --text-secondary: #a7bbdc;
        --text-muted: #7089b0;
        --danger: #ff6b6b;
        --radius: 20px;
        --radius-sm: 12px;
        --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
        --transition: all 0.22s cubic-bezier(0.2, 0.7, 0.3, 1);
        --font-main: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "MiSans", sans-serif;
        --font-num: Inter, "SF Pro Display", "Segoe UI", sans-serif;
    }

    *,
    *::before,
    *::after {
        box-sizing: border-box;
    }

    html {
        scroll-behavior: smooth;
    }

    body {
        margin: 0;
        font-family: var(--font-main);
        font-size: 16px;
        line-height: 1.75;
        color: var(--text-main);
        background:
            radial-gradient(1100px 600px at 85% -10%, rgba(98, 208, 255, 0.08), transparent 60%),
            radial-gradient(900px 500px at -10% 30%, rgba(255, 141, 84, 0.06), transparent 55%),
            var(--bg-deep);
        -webkit-font-smoothing: antialiased;
        overflow-x: hidden;
    }

    body::before {
        content: "";
        pointer-events: none;
        position: fixed;
        inset: 0;
        z-index: 0;
        background-image:
            linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
            linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
        background-size: 70px 70px;
        mask-image: radial-gradient(circle at 50% 20%, #000 40%, transparent 100%);
    }

    img {
        max-width: 100%;
        display: inline-block;
    }

    a {
        color: var(--ice);
        text-decoration: none;
        transition: var(--transition);
    }

    a:hover {
        color: #ffffff;
    }

    button,
    input,
    textarea,
    select {
        font-family: inherit;
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    textarea:focus-visible {
        outline: 2px solid var(--ice);
        outline-offset: 3px;
        border-radius: 6px;
    }

    .container {
        max-width: 1280px;
        position: relative;
        z-index: 1;
    }

    .site-navbar {
        position: sticky;
        top: 0;
        z-index: 1060;
        background: rgba(7, 14, 29, 0.78);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        transition: var(--transition);
    }

    .site-navbar .container {
        position: relative;
        min-height: 78px;
    }

    .brand {
        display: inline-flex;
        align-items: center;
        gap: 12px;
        padding: 16px 0;
    }

    .brand-mark {
        width: 36px;
        height: 36px;
        border-radius: 11px;
        background: linear-gradient(140deg, rgba(98, 208, 255, 0.95), rgba(59, 167, 255, 0.55));
        box-shadow: 0 8px 26px rgba(59, 167, 255, 0.3);
        position: relative;
        flex: 0 0 auto;
    }

    .brand-mark::after {
        content: "";
        position: absolute;
        width: 7px;
        height: 7px;
        border-radius: 50%;
        background: var(--orange);
        box-shadow: 0 0 0 5px rgba(255, 141, 84, 0.18);
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
    }

    .brand-text {
        display: flex;
        flex-direction: column;
        line-height: 1.2;
    }

    .brand-title {
        font-size: 20px;
        font-weight: 700;
        letter-spacing: 0.02em;
        color: #f2f7ff;
    }

    .brand-sub {
        font-size: 11px;
        color: var(--text-muted);
        letter-spacing: 0.08em;
        margin-top: 3px;
    }

    .nav-primary {
        list-style: none;
        margin: 0;
        padding: 0;
        display: flex;
        align-items: center;
        gap: 32px;
    }

    .nav-primary a {
        position: relative;
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 15px;
        color: var(--text-secondary);
        padding: 8px 0;
        font-weight: 500;
    }

    .nav-primary a:hover,
    .nav-primary a.active {
        color: #ffffff;
    }

    .nav-primary a::after {
        content: "";
        position: absolute;
        left: 50%;
        bottom: 0;
        width: 4px;
        height: 4px;
        border-radius: 50%;
        background: var(--orange);
        box-shadow: 0 0 10px rgba(255, 141, 84, 0.8);
        transform: translateX(-50%);
        opacity: 0;
        transition: var(--transition);
    }

    .nav-primary a.active::after {
        opacity: 1;
        bottom: -2px;
    }

    .nav-action {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        font-weight: 600;
        color: var(--ice);
        border: 1px solid rgba(98, 208, 255, 0.28);
        padding: 9px 16px;
        border-radius: 999px;
        margin-left: 24px;
        background: rgba(98, 208, 255, 0.06);
        transition: var(--transition);
    }

    .nav-action:hover {
        color: var(--bg-deep);
        background: var(--ice);
        border-color: var(--ice);
        transform: translateY(-1px);
    }

    .nav-action i {
        font-size: 12px;
        transition: transform 0.2s ease;
    }

    .nav-action:hover i {
        transform: translateX(4px);
    }

    .navbar-toggler {
        border: 0;
        padding: 8px 10px;
        border-radius: 10px;
        background: rgba(255, 255, 255, 0.05);
        box-shadow: none !important;
    }

    .navbar-toggler:focus {
        box-shadow: none;
    }

    .toggler-icon,
    .toggler-icon::before,
    .toggler-icon::after {
        display: block;
        width: 20px;
        height: 2px;
        background: #dbe8ff;
        border-radius: 4px;
        transition: var(--transition);
        content: "";
        position: relative;
    }

    .toggler-icon::before {
        position: absolute;
        top: -7px;
        left: 0;
    }

    .toggler-icon::after {
        position: absolute;
        top: 7px;
        left: 0;
    }

    .navbar-toggler:not(.collapsed) .toggler-icon {
        background: transparent;
    }

    .navbar-toggler:not(.collapsed) .toggler-icon::before {
        top: 0;
        transform: rotate(45deg);
    }

    .navbar-toggler:not(.collapsed) .toggler-icon::after {
        top: 0;
        transform: rotate(-45deg);
    }

    @media (min-width: 992px) {
        .navbar-expand-lg .navbar-collapse {
            display: flex !important;
            flex-basis: auto;
        }

        .navbar-expand-lg .navbar-toggler {
            display: none;
        }
    }

    @media (max-width: 991.98px) {
        .site-navbar .container {
            min-height: 66px;
        }

        .brand {
            padding: 12px 0;
        }

        .navbar-collapse {
            position: absolute;
            left: 0;
            right: 0;
            top: 100%;
            background: rgba(7, 14, 29, 0.97);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 0 0 18px 18px;
            padding: 18px 24px 24px;
            margin: 0 calc(var(--bs-gutter-x) * 0.5);
            box-shadow: var(--shadow);
        }

        .nav-primary {
            flex-direction: column;
            align-items: flex-start;
            gap: 4px;
        }

        .nav-primary li {
            width: 100%;
        }

        .nav-primary a {
            display: block;
            width: 100%;
            padding: 10px 4px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .nav-primary a::after {
            display: none;
        }

        .nav-action {
            margin-left: 0;
            margin-top: 18px;
            display: inline-flex;
        }
    }

    .article-hero {
        position: relative;
        padding: 40px 0 30px;
        background:
            linear-gradient(180deg, rgba(7, 14, 29, 0.93), rgba(7, 14, 29, 0.78)),
            url('/assets/images/backpic/back-2.png') center / cover no-repeat;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .breadcrumb-wrap {
        margin: 0;
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        color: var(--text-muted);
    }

    .breadcrumb-wrap ol {
        margin: 0;
        padding: 0;
        list-style: none;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 8px;
    }

    .breadcrumb-wrap li {
        display: inline-flex;
        align-items: center;
        gap: 8px;
    }

    .breadcrumb-wrap li + li::before {
        content: "/";
        font-size: 13px;
        color: rgba(255, 255, 255, 0.25);
        margin-right: 2px;
    }

    .breadcrumb-wrap a {
        color: var(--text-secondary);
        text-decoration: none;
    }

    .breadcrumb-wrap a:hover {
        color: var(--ice);
    }

    .breadcrumb-wrap .current {
        color: var(--text-main);
        font-weight: 500;
        max-width: 360px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .article-main-section {
        padding: 56px 0 80px;
    }

    .article-card {
        background: rgba(255, 255, 255, 0.035);
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: var(--radius);
        padding: 32px 36px 38px;
        box-shadow: var(--shadow);
    }

    .article-cat-badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 13px;
        font-weight: 600;
        color: var(--ice);
        background: rgba(98, 208, 255, 0.08);
        border: 1px solid rgba(98, 208, 255, 0.22);
        padding: 6px 14px;
        border-radius: 999px;
        margin-bottom: 20px;
    }

    .article-cat-badge:hover {
        background: rgba(98, 208, 255, 0.16);
        color: #ffffff;
    }

    .article-card h1 {
        font-size: clamp(30px, 4.2vw, 44px);
        line-height: 1.3;
        font-weight: 700;
        letter-spacing: -0.01em;
        color: #f0f6ff;
        margin: 0 0 18px;
    }

    .article-meta {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 18px;
        font-size: 13px;
        color: var(--text-muted);
        border-top: 1px solid rgba(255, 255, 255, 0.07);
        padding-top: 18px;
        margin-bottom: 24px;
    }

    .article-meta span,
    .article-meta a {
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }

    .article-meta i {
        color: var(--ice);
        font-size: 13px;
        opacity: 0.8;
    }

    .article-content {
        font-size: 17px;
        line-height: 1.9;
        color: #d8e6ff;
        word-break: break-word;
    }

    .article-content > *:first-child {
        margin-top: 0 !important;
    }

    .article-content p {
        margin: 0 0 1.4em;
        text-align: left;
    }

    .article-content h2 {
        font-size: clamp(22px, 2.6vw, 28px);
        line-height: 1.4;
        color: #f0f6ff;
        font-weight: 700;
        margin: 2.4em 0 0.8em;
        letter-spacing: -0.01em;
        position: relative;
        padding-left: 16px;
    }

    .article-content h2::before {
        content: "";
        position: absolute;
        left: 0;
        top: 0.22em;
        bottom: 0.18em;
        width: 4px;
        border-radius: 999px;
        background: linear-gradient(180deg, var(--ice), var(--orange));
    }

    .article-content h3 {
        font-size: 20px;
        line-height: 1.45;
        color: #e2edff;
        font-weight: 700;
        margin: 1.8em 0 0.6em;
    }

    .article-content ul,
    .article-content ol {
        margin: 0 0 1.5em;
        padding-left: 22px;
    }

    .article-content li {
        margin-bottom: 8px;
    }

    .article-content li::marker {
        color: var(--ice);
    }

    .article-content blockquote {
        margin: 1.8em 0;
        padding: 18px 22px;
        background: rgba(98, 208, 255, 0.06);
        border-left: 3px solid var(--ice);
        border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        color: var(--text-secondary);
        line-height: 1.85;
    }

    .article-content blockquote p {
        margin-bottom: 6px;
    }

    .article-content img {
        border-radius: var(--radius);
        margin: 22px 0;
        box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
    }

    .article-content table {
        width: 100%;
        margin: 1.8em 0;
        border-collapse: separate;
        border-spacing: 0;
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 14px;
        overflow: hidden;
        font-size: 15px;
    }

    .article-content table th,
    .article-content table td {
        padding: 12px 16px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        text-align: left;
    }

    .article-content table th {
        background: rgba(255, 255, 255, 0.05);
        color: #eef5ff;
        font-weight: 600;
    }

    .article-content table tr:last-child td {
        border-bottom: 0;
    }

    .article-content a {
        color: var(--ice);
        border-bottom: 1px solid rgba(98, 208, 255, 0.25);
        padding-bottom: 1px;
    }

    .article-content a:hover {
        color: #ffffff;
        border-bottom-color: #ffffff;
    }

    .article-content .wp-block-image,
    .article-content figure {
        margin: 1.8em 0;
    }

    .article-content figcaption {
        font-size: 13px;
        color: var(--text-muted);
        text-align: center;
        margin-top: 8px;
    }

    .article-tag-block {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 10px;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        padding-top: 22px;
        margin-top: 34px;
    }

    .tag-label {
        font-size: 14px;
        color: var(--text-secondary);
        display: inline-flex;
        align-items: center;
        gap: 6px;
        margin-right: 4px;
    }

    .tag-item {
        font-size: 13px;
        color: var(--ice);
        border: 1px solid rgba(98, 208, 255, 0.24);
        background: rgba(98, 208, 255, 0.06);
        padding: 5px 12px;
        border-radius: 999px;
        transition: var(--transition);
    }

    .tag-item:hover {
        background: rgba(98, 208, 255, 0.16);
        color: #ffffff;
    }

    .article-return {
        margin-top: 30px;
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 14px;
    }

    .return-line {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: var(--text-secondary);
        border: 1px solid rgba(255, 255, 255, 0.12);
        padding: 9px 18px;
        border-radius: 999px;
        font-weight: 500;
    }

    .return-line:hover {
        color: var(--bg-deep);
        background: var(--ice);
        border-color: var(--ice);
    }

    .return-line i {
        font-size: 12px;
    }

    .article-aside {
        position: sticky;
        top: 98px;
        display: flex;
        flex-direction: column;
        gap: 24px;
    }

    .side-card {
        background: rgba(255, 255, 255, 0.035);
        border: 1px solid rgba(255, 255, 255, 0.09);
        border-radius: 18px;
        padding: 22px;
        transition: var(--transition);
    }

    .side-card:hover {
        border-color: rgba(255, 255, 255, 0.16);
    }

    .side-card .side-title {
        font-size: 16px;
        font-weight: 700;
        color: #eaf3ff;
        margin: 0 0 14px;
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .side-card .side-title i {
        color: var(--orange);
        font-size: 15px;
    }

    .side-list {
        list-style: none;
        margin: 0;
        padding: 0;
        display: flex;
        flex-direction: column;
        gap: 4px;
    }

    .side-list a {
        display: flex;
        align-items: center;
        gap: 10px;
        color: var(--text-secondary);
        font-size: 14px;
        padding: 10px 4px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        transition: var(--transition);
    }

    .side-list a:last-child {
        border-bottom: 0;
    }

    .side-list a i {
        color: var(--ice);
        font-size: 12px;
        opacity: 0.85;
        width: 16px;
        text-align: center;
    }

    .side-list a:hover {
        color: #ffffff;
        padding-left: 10px;
    }

    .side-tip {
        display: flex;
        gap: 12px;
        margin-top: 4px;
        padding: 14px 15px;
        background: rgba(98, 208, 255, 0.05);
        border: 1px solid rgba(98, 208, 255, 0.13);
        border-radius: 13px;
        font-size: 13px;
        line-height: 1.7;
        color: var(--text-secondary);
    }

    .side-tip i {
        color: var(--ice);
        font-size: 18px;
        margin-top: 1px;
    }

    .side-img-card img {
        width: 100%;
        height: 120px;
        object-fit: cover;
        border-radius: 12px;
        margin-bottom: 12px;
    }

    .side-img-card p {
        margin: 0;
        font-size: 13px;
        color: var(--text-muted);
    }

    .related-section {
        padding: 64px 0 78px;
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        background: rgba(12, 24, 46, 0.35);
    }

    .related-head h2 {
        font-size: clamp(24px, 2.6vw, 32px);
        font-weight: 700;
        color: #eaf3ff;
        margin: 0 0 6px;
    }

    .related-head p {
        color: var(--text-muted);
        font-size: 15px;
        margin: 0;
    }

    .related-card {
        display: block;
        height: 100%;
        background: rgba(255, 255, 255, 0.035);
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: 18px;
        overflow: hidden;
        transition: var(--transition);
    }

    .related-card:hover {
        border-color: rgba(98, 208, 255, 0.4);
        transform: translateY(-3px);
        box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
    }

    .related-cover {
        position: relative;
        overflow: hidden;
        height: 150px;
    }

    .related-cover img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.45s ease;
    }

    .related-card:hover .related-cover img {
        transform: scale(1.04);
    }

    .related-cover::after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, transparent 30%, rgba(7, 14, 29, 0.8));
    }

    .related-body {
        padding: 16px 18px 18px;
    }

    .related-body h3 {
        font-size: 17px;
        font-weight: 700;
        color: #eaf3ff;
        margin: 0 0 8px;
    }

    .related-body p {
        margin: 0;
        font-size: 13px;
        color: var(--text-muted);
        line-height: 1.65;
    }

    .cta-section {
        padding: 68px 0;
    }

    .cta-inner {
        position: relative;
        overflow: hidden;
        background:
            radial-gradient(circle at 80% 20%, rgba(98, 208, 255, 0.13), transparent 44%),
            radial-gradient(circle at 10% 80%, rgba(255, 141, 84, 0.12), transparent 40%),
            rgba(12, 24, 46, 0.8);
        border: 1px solid rgba(255, 255, 255, 0.11);
        border-radius: 24px;
        padding: 42px 48px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 36px;
    }

    .cta-title {
        font-size: clamp(22px, 2.6vw, 30px);
        font-weight: 700;
        color: #f2f7ff;
        margin: 0 0 10px;
    }

    .cta-text {
        color: var(--text-secondary);
        font-size: 15px;
        margin: 0;
        max-width: 620px;
    }

    .btn-main {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        font-size: 16px;
        font-weight: 600;
        color: #ffffff;
        background: linear-gradient(135deg, #ff9b62, var(--orange-strong));
        border: 0;
        border-radius: 14px;
        padding: 13px 28px;
        box-shadow: 0 12px 30px rgba(255, 101, 54, 0.28);
        transition: var(--transition);
        white-space: nowrap;
        text-decoration: none;
    }

    .btn-main:hover {
        color: #ffffff;
        transform: translateY(-2px);
        box-shadow: 0 16px 40px rgba(255, 101, 54, 0.38);
        background: linear-gradient(135deg, #ffad75, #ff7a44);
    }

    .btn-main:active {
        transform: translateY(1px);
        box-shadow: 0 6px 16px rgba(255, 101, 54, 0.32);
    }

    .btn-main i {
        font-size: 14px;
    }

    .not-found-panel {
        padding: 60px 0;
    }

    .not-found-card {
        max-width: 660px;
        margin: 0 auto;
        background: rgba(255, 255, 255, 0.035);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 22px;
        padding: 52px 34px;
        text-align: center;
        box-shadow: var(--shadow);
        position: relative;
    }

    .not-found-card i {
        font-size: 42px;
        color: var(--ice);
        opacity: 0.75;
        margin-bottom: 16px;
    }

    .not-found-card h1 {
        font-size: 28px;
        font-weight: 700;
        color: #f0f6ff;
        margin: 0 0 12px;
    }

    .not-found-card p {
        color: var(--text-secondary);
        font-size: 15px;
        margin-bottom: 26px;
    }

    .footer-links li span {
        display: block;
        padding: 3px 0;
        color: var(--text-muted);
        font-size: 14px;
    }

    .site-footer {
        background: #050b16;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        padding: 60px 0 28px;
        position: relative;
        z-index: 1;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.6fr 1fr 1fr 1fr;
        gap: 40px;
        padding-bottom: 40px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    }

    .footer-brand .brand {
        margin-bottom: 14px;
    }

    .footer-desc {
        margin: 16px 0 0;
        font-size: 14px;
        line-height: 1.8;
        color: var(--text-secondary);
        max-width: 360px;
    }

    .footer-heading {
        font-size: 15px;
        font-weight: 700;
        color: #e6efff;
        margin: 8px 0 18px;
        letter-spacing: 0.02em;
    }

    .footer-links {
        list-style: none;
        padding: 0;
        margin: 0;
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .footer-links a {
        color: var(--text-muted);
        font-size: 14px;
        display: inline-flex;
        align-items: center;
        gap: 6px;
        transition: var(--transition);
    }

    .footer-links a:hover {
        color: var(--ice);
        padding-left: 4px;
    }

    .footer-links li span {
        color: var(--text-muted);
        font-size: 14px;
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }

    .footer-bottom {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
        gap: 10px;
        font-size: 13px;
        color: var(--text-muted);
        padding-top: 26px;
    }

    .footer-copy span {
        color: rgba(255, 255, 255, 0.42);
        margin-left: 2px;
    }

    @media (max-width: 991.98px) {
        .article-main-section {
            padding: 36px 0 56px;
        }

        .article-card {
            padding: 26px 22px;
        }

        .article-aside {
            margin-top: 30px;
            position: static;
        }

        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .cta-inner {
            flex-direction: column;
            align-items: flex-start;
            padding: 34px 28px;
        }

        .cta-text {
            max-width: 100%;
        }
    }

    @media (max-width: 767.98px) {
        .article-meta {
            gap: 12px;
        }

        .article-card {
            padding: 22px 18px;
        }

        .article-card h1 {
            font-size: 28px;
        }

        .article-content {
            font-size: 16px;
            line-height: 1.8;
        }

        .breadcrumb-wrap .current {
            max-width: 180px;
        }

        .related-head {
            margin-bottom: 14px;
        }

        .related-section {
            padding: 44px 0 52px;
        }

        .footer-grid {
            grid-template-columns: 1fr;
            gap: 24px;
        }

        .footer-bottom {
            flex-direction: column;
            text-align: center;
        }

        .nav-primary {
            gap: 0;
        }

        .nav-action {
            margin-top: 14px;
        }
    }

    @media (max-width: 520px) {
        .article-main-section {
            padding: 20px 0 40px;
        }

        .article-hero {
            padding: 28px 0 18px;
        }

        .not-found-card {
            padding: 40px 20px;
        }

        .not-found-card h1 {
            font-size: 22px;
        }

        .cta-inner {
            padding: 28px 20px;
        }

        .footer-grid {
            grid-template-columns: 1fr;
            row-gap: 28px;
        }
    }

/* roulang page: category1 */
:root {
            --bg-deep: #070E1D;
            --bg-elev: #0C182E;
            --bg-soft: #0B1428;
            --card-bg: rgba(255, 255, 255, .045);
            --card-bg-hover: rgba(255, 255, 255, .075);
            --line: rgba(255, 255, 255, .1);
            --line-bright: rgba(255, 255, 255, .18);
            --ice: #62D0FF;
            --ice-50: rgba(98, 208, 255, .1);
            --ice-glow: rgba(98, 208, 255, .2);
            --coral: #FF8A5C;
            --coral-light: #FFA97C;
            --accent: #FF8345;
            --danger: #FF6B6B;
            --text-main: #E6F0FF;
            --text-sub: #A6BBDC;
            --text-weak: #7089B0;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-card: 0 16px 40px rgba(0, 0, 0, .25);
            --shadow-coral: 0 12px 34px rgba(255, 131, 69, .28);
            --font-base: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "MiSans", "Helvetica Neue", Arial, sans-serif;
            --font-num: "Inter", "SF Pro Display", "Segoe UI", var(--font-base);
            --ease: cubic-bezier(.22, .68, .28, 1);
        }

        html,
        body {
            margin: 0;
            padding: 0;
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background-color: var(--bg-deep);
            background-image:
                radial-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px);
            background-size: 36px 36px;
            overflow-x: hidden;
            letter-spacing: .01em;
        }

        body[data-bs-spy="scroll"] {
            outline: none;
        }

        a {
            color: var(--ice);
            text-decoration: none;
            transition: color .2s var(--ease), background-color .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease), transform .2s var(--ease);
        }

        a:hover {
            color: #9FE2FF;
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        .btn:focus-visible {
            outline: 1px solid var(--ice);
            outline-offset: 3px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
        }

        .container {
            max-width: 1280px;
        }

        ::selection {
            background: rgba(98, 208, 255, .32);
            color: #fff;
        }

        section,
        footer {
            position: relative;
        }

        h1,
        h2,
        h3,
        h4 {
            line-height: 1.32;
            color: #F4F9FF;
            font-weight: 600;
            letter-spacing: 0;
        }

        h1 {
            font-size: clamp(34px, 4.6vw, 56px);
            font-weight: 700;
        }

        h2 {
            font-size: clamp(26px, 3vw, 34px);
        }

        h3 {
            font-size: 20px;
        }

        .btn-coral,
        .btn-ghost,
        .btn-line {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            border-radius: 14px;
            padding: 13px 26px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            letter-spacing: .02em;
            white-space: nowrap;
            transition: transform .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease);
        }

        .btn-coral {
            background: linear-gradient(135deg, #FF8345, #FFA97C);
            color: #160F14;
            box-shadow: var(--shadow-coral);
            border: none;
        }

        .btn-coral i {
            font-size: 13px;
            transition: transform .2s var(--ease);
        }

        .btn-coral:hover {
            color: #0B080D;
            background: linear-gradient(135deg, #FF925C, #FFB693);
            transform: translateY(-2px);
            box-shadow: 0 18px 40px rgba(255, 131, 69, .36);
        }

        .btn-coral:hover i {
            transform: translateX(3px);
        }

        .btn-coral:active {
            transform: translateY(0);
            box-shadow: 0 8px 20px rgba(255, 131, 69, .2);
        }

        .btn-ghost {
            background: rgba(255, 255, 255, .04);
            border: 1px solid var(--line-bright);
            color: var(--text-main);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, .09);
            border-color: rgba(255, 255, 255, .3);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-line {
            background: transparent;
            border: 1px solid rgba(98, 208, 255, .45);
            color: var(--ice);
            padding: 11px 22px;
        }

        .btn-line:hover {
            border-color: var(--ice);
            background: rgba(98, 208, 255, .08);
            color: #E6FAFF;
            transform: translateX(3px);
        }

        .icon-arrow {
            font-size: 13px;
            transition: transform .2s var(--ease);
        }

        .icon-circle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .14);
            color: var(--ice);
            font-size: 14px;
        }

        /* ============ 导航 ============ */
        .site-navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1005;
            padding: 18px 0;
            background: transparent;
            border-bottom: 1px solid transparent;
            transition: background-color .28s var(--ease), box-shadow .28s var(--ease), border-color .28s var(--ease), padding .28s var(--ease);
        }

        .site-navbar.is-scrolled {
            padding: 10px 0;
            background: rgba(5, 12, 25, .78);
            -webkit-backdrop-filter: blur(20px);
            backdrop-filter: blur(20px);
            border-bottom-color: rgba(255, 255, 255, .06);
            box-shadow: 0 10px 34px rgba(0, 0, 0, .28);
        }

        .site-navbar .container {
            display: flex;
            align-items: center;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 11px;
            color: #fff;
            flex-shrink: 0;
        }

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            position: relative;
            width: 42px;
            height: 42px;
            border-radius: 13px;
            background: linear-gradient(145deg, rgba(98, 208, 255, .2), rgba(98, 208, 255, .04));
            border: 1px solid rgba(98, 208, 255, .3);
        }

        .brand-mark::before {
            content: "";
            width: 13px;
            height: 13px;
            background: var(--ice);
            border-radius: 6px 1px 6px 1px;
            transform: rotate(45deg);
            box-shadow: 0 0 12px rgba(98, 208, 255, .8);
        }

        .brand-mark::after {
            content: "";
            position: absolute;
            width: 5px;
            height: 5px;
            background: var(--coral);
            border-radius: 50%;
            right: 8px;
            top: 8px;
            box-shadow: 0 0 8px rgba(255, 138, 92, .55);
        }

        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.1;
        }

        .brand-title {
            font-size: 18px;
            font-weight: 700;
            letter-spacing: 0;
            color: #F4F9FF;
        }

        .brand-sub {
            font-size: 10.5px;
            color: var(--text-weak);
            letter-spacing: .4px;
            margin-top: 3px;
        }

        .nav-primary {
            display: flex;
            gap: 0;
            list-style: none;
            align-items: center;
            margin: 0;
            padding: 0;
        }

        .nav-primary li + li {
            margin-left: 32px;
        }

        .nav-primary a {
            position: relative;
            display: inline-block;
            padding: 8px 0 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
            border: 0;
            background: transparent;
        }

        .nav-primary a::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: 2px;
            width: 0;
            height: 1px;
            background: var(--ice);
            transition: all .25s var(--ease);
            transform: translateX(-50%);
        }

        .nav-primary a:hover {
            color: #E6FAFF;
        }

        .nav-primary a:hover::after {
            width: 70%;
        }

        .nav-primary a.active {
            color: #fff;
        }

        .nav-primary a.active::before {
            content: "";
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--ice);
            box-shadow: 0 0 12px var(--ice);
            transform: translateX(-50%);
            transition: all .2s var(--ease);
        }

        .nav-primary a.active::after {
            width: 100%;
        }

        .nav-action {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14.5px;
            font-weight: 500;
            color: var(--text-main);
            padding: 9px 0 9px 22px;
            border-left: 1px solid var(--line);
            margin-left: 28px;
            white-space: nowrap;
        }

        .nav-action i {
            color: var(--coral);
            font-size: 13px;
            transition: transform .2s var(--ease);
        }

        .nav-action:hover {
            color: #fff;
        }

        .nav-action:hover i {
            transform: translateX(3px);
        }

        .navbar-toggler {
            border: none;
            padding: 0;
            width: 42px;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: none;
        }

        .toggler-icon {
            position: relative;
            display: inline-flex;
            flex-direction: column;
            justify-content: center;
            width: 20px;
            height: 14px;
        }

        .toggler-icon::before,
        .toggler-icon::after {
            content: "";
            position: absolute;
            left: 0;
            width: 100%;
            height: 1.5px;
            background: #EAF6FF;
            transition: transform .3s var(--ease), top .3s var(--ease);
        }

        .toggler-icon::before {
            top: 0;
        }

        .toggler-icon::after {
            bottom: 0;
        }

        .navbar-toggler:not(.collapsed) .toggler-icon::before {
            top: 50%;
            transform: translateY(-50%) rotate(45deg);
        }

        .navbar-toggler:not(.collapsed) .toggler-icon::after {
            top: 50%;
            transform: translateY(-50%) rotate(-45deg);
        }

        /* ============ hero ============ */
        .category-hero {
            position: relative;
            padding: 170px 0 84px;
            background-color: var(--bg-deep);
            overflow: hidden;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url("/assets/images/backpic/back-2.png");
            background-size: cover;
            background-position: center 42%;
            opacity: .5;
        }

        .category-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background:
                linear-gradient(180deg, rgba(7, 14, 29, .92) 0%, rgba(7, 14, 29, .78) 38%, rgba(7, 14, 29, .92) 78%, var(--bg-deep) 100%),
                radial-gradient(circle at 78% 10%, rgba(98, 208, 255, .1), transparent 42%);
        }

        .category-hero .container {
            position: relative;
            z-index: 2;
        }

        .hero-inner {
            max-width: 960px;
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
            padding: 0;
            margin: 0 0 22px;
            list-style: none;
            font-size: 13.5px;
            color: var(--text-weak);
        }

        .breadcrumb a {
            color: var(--text-weak);
            border-bottom: 1px solid transparent;
        }

        .breadcrumb a:hover {
            color: var(--ice);
            border-bottom-color: var(--ice);
        }

        .breadcrumb i {
            font-size: 10px;
            margin: 0 4px;
        }

        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 9px 16px;
            border-radius: 100px;
            border: 1px solid rgba(98, 208, 255, .25);
            background: rgba(98, 208, 255, .08);
            color: var(--ice);
            font-size: 13.5px;
            font-weight: 500;
            letter-spacing: .1em;
            margin-bottom: 20px;
        }

        .hero-kicker i {
            font-size: 12px;
        }

        .category-hero h1 {
            margin-bottom: 18px;
        }

        .hero-lead {
            font-size: clamp(16px, 2vw, 19px);
            max-width: 740px;
            color: var(--text-sub);
            line-height: 1.85;
        }

        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 24px;
            margin-top: 32px;
            padding: 18px 0;
            border-top: 1px solid rgba(255, 255, 255, .09);
        }

        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13.5px;
            color: var(--text-weak);
        }

        .hero-meta i {
            color: var(--ice);
            width: 16px;
            text-align: center;
        }

        .hero-meta strong {
            color: var(--text-main);
            font-weight: 500;
        }

        /* ============ 主布局 ============ */
        .guide-layout {
            padding: 70px 0 60px;
        }

        .guide-section {
            scroll-margin-top: 130px;
            margin-bottom: 68px;
        }

        .section-head {
            margin-bottom: 28px;
        }

        .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .14em;
            color: var(--ice);
            margin-bottom: 10px;
        }

        .section-kicker::before {
            content: "";
            display: inline-block;
            width: 24px;
            height: 1px;
            background: rgba(98, 208, 255, .6);
        }

        .section-head h2 {
            margin-bottom: 14px;
        }

        .section-head .section-desc {
            color: var(--text-sub);
            font-size: 16px;
            max-width: 800px;
            margin: 0;
        }

        /* ============ 通用玻璃块 ============ */
        .glass-block {
            background: var(--card-bg);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 28px 30px;
        }

        .glass-block strong {
            color: #EFF7FF;
            font-weight: 600;
        }

        .text-sub {
            color: var(--text-sub);
        }

        .text-weak {
            color: var(--text-weak);
            font-size: 14px;
        }

        /* 右侧锚点 */
        .guide-side {
            position: relative;
        }

        .anchor-panel {
            position: sticky;
            top: 110px;
            padding: 24px 22px;
            border-radius: 20px;
            border: 1px solid var(--line);
            background: linear-gradient(150deg, rgba(255, 255, 255, .055), rgba(255, 255, 255, .025));
            -webkit-backdrop-filter: blur(12px);
            backdrop-filter: blur(12px);
            box-shadow: var(--shadow-card);
        }

        .anchor-panel::before {
            content: "";
            display: block;
            height: 2px;
            width: 44px;
            background: linear-gradient(90deg, var(--ice), transparent);
            margin-bottom: 18px;
        }

        .anchor-kicker {
            display: block;
            font-size: 12px;
            letter-spacing: .2em;
            color: var(--text-weak);
            margin-bottom: 14px;
        }

        .anchor-title {
            font-size: 17px;
            font-weight: 600;
            color: #EDF6FF;
            margin-bottom: 16px;
        }

        .anchor-nav {
            list-style: none;
            margin: 0 0 18px;
            padding: 0;
            border-left: 1px solid rgba(255, 255, 255, .1);
        }

        .anchor-nav li {
            margin: 0;
        }

        .anchor-nav a {
            display: block;
            color: var(--text-sub);
            padding: 9px 0 9px 18px;
            margin-left: -1px;
            border-left: 2px solid transparent;
            font-size: 14.5px;
            line-height: 1.45;
            transition: all .2s var(--ease);
        }

        .anchor-nav a:hover {
            color: #EAF8FF;
            border-left-color: rgba(98, 208, 255, .5);
        }

        .anchor-nav a.active {
            color: var(--ice);
            border-left-color: var(--ice);
            font-weight: 500;
            background: linear-gradient(90deg, rgba(98, 208, 255, .06), transparent);
        }

        .anchor-cta {
            border-top: 1px solid var(--line);
            padding-top: 16px;
        }

        .anchor-cta .btn-ghost {
            width: 100%;
            padding: 11px 18px;
            font-size: 14px;
        }

        /* ============ 入口概览 ============ */
        .overview-grid {
            display: grid;
            grid-template-columns: 1.18fr .82fr;
            gap: 28px;
            align-items: stretch;
        }

        .entry-article p {
            color: var(--text-sub);
            font-size: 16px;
            line-height: 1.9;
            margin-bottom: 18px;
        }

        .entry-article p:first-child {
            color: var(--text-main);
            font-size: 17px;
        }

        .overview-list {
            list-style: none;
            padding: 10px 0 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .overview-list li {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 19px 0;
            border-bottom: 1px solid rgba(255, 255, 255, .07);
        }

        .overview-list li:last-child {
            border-bottom: 0;
        }

        .overview-list li i {
            flex: 0 0 32px;
            height: 32px;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--ice-50);
            border: 1px solid rgba(98, 208, 255, .15);
            color: var(--ice);
            font-size: 13px;
        }

        .overview-list li>div {
            min-width: 0;
        }

        .overview-list .list-title {
            color: #EAF5FF;
            font-weight: 600;
            font-size: 15px;
            margin-bottom: 3px;
        }

        .overview-list .list-desc {
            color: var(--text-weak);
            font-size: 13.5px;
            line-height: 1.7;
        }

        /* ============ 官网入口形态 ============ */
        .entry-style-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .entry-style-item {
            display: grid;
            grid-template-columns: 76px 1fr auto;
            gap: 20px;
            align-items: center;
            padding: 15px 22px 15px 15px;
            background: rgba(255, 255, 255, .032);
            border: 1px solid rgba(255, 255, 255, .07);
            border-radius: 18px;
            transition: all .24s var(--ease);
        }

        .entry-style-item:hover {
            background: rgba(255, 255, 255, .055);
            border-color: rgba(98, 208, 255, .22);
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, .2);
        }

        .entry-style-num {
            width: 64px;
            height: 64px;
            border-radius: 18px;
            background: radial-gradient(circle at 30% 20%, rgba(98, 208, 255, .16), rgba(98, 208, 255, .04));
            border: 1px solid rgba(98, 208, 255, .2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 21px;
            color: var(--ice);
        }

        .entry-style-text h3 {
            margin: 0 0 3px;
            font-size: 18px;
            color: #F0F8FF;
        }

        .entry-style-text p {
            margin: 0;
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-sub);
            max-width: 680px;
        }

        .entry-style-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--coral);
            background: rgba(255, 138, 92, .1);
            font-size: 14px;
            margin-right: 6px;
        }

        /* ============ 访问前核对 ============ */
        .check-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: stretch;
        }

        .access-visual {
            position: relative;
            min-height: 390px;
            border-radius: 22px;
            overflow: hidden;
            border: 1px solid var(--line);
            box-shadow: var(--shadow-card);
        }

        .access-visual img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: .78;
            transition: transform .6s var(--ease);
        }

        .access-visual:hover img {
            transform: scale(1.02);
        }

        .access-visual::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(200deg, rgba(7, 14, 29, .2) 0%, rgba(7, 14, 29, .82) 92%);
        }

        .access-visual-content {
            position: absolute;
            left: 24px;
            right: 24px;
            bottom: 22px;
            z-index: 2;
        }

        .access-visual-content h3 {
            font-size: 19px;
            color: #F2F8FF;
            margin-bottom: 10px;
        }

        .access-visual-content p {
            color: rgba(230, 240, 255, .76);
            font-size: 14px;
            line-height: 1.75;
            margin: 0;
        }

        .check-list {
            list-style: none;
            margin: 0;
            padding: 8px 0;
        }

        .check-list li {
            position: relative;
            padding: 16px 0 15px 50px;
            border-bottom: 1px solid rgba(255, 255, 255, .07);
        }

        .check-list li:last-child {
            border-bottom: 0;
        }

        .check-list li::before {
            content: "\f00c";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 22px;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            background: rgba(98, 208, 255, .1);
            border: 1px solid rgba(98, 208, 255, .24);
            color: var(--ice);
        }

        .check-list .check-title {
            display: block;
            font-size: 15.5px;
            font-weight: 600;
            color: #EBF4FF;
            margin-bottom: 2px;
        }

        .check-list .check-desc {
            font-size: 13.5px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* ============ 页面识别要点 ============ */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .verify-panel {
            border-radius: 20px;
            padding: 26px 26px 14px;
            border: 1px solid var(--line);
            background: rgba(255, 255, 255, .035);
        }

        .verify-panel.confirm {
            border-top: 2px solid rgba(98, 208, 255, .55);
        }

        .verify-panel.warn {
            border-top: 2px solid rgba(255, 107, 107, .5);
        }

        .verify-head {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }

        .verify-head i {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }

        .verify-panel.confirm .verify-head i {
            background: rgba(98, 208, 255, .12);
            color: var(--ice);
        }

        .verify-panel.warn .verify-head i {
            background: rgba(255, 107, 107, .1);
            color: var(--danger);
        }

        .verify-head h3 {
            font-size: 17px;
            margin: 0;
            color: #EFF7FF;
        }

        .verify-panel ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .verify-panel li {
            padding: 7px 0 11px 22px;
            position: relative;
            color: var(--text-sub);
            font-size: 13.5px;
            line-height: 1.7;
        }

        .verify-panel li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 17px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
        }

        .verify-panel.confirm li::before {
            background: var(--ice);
            box-shadow: 0 0 8px var(--ice);
        }

        .verify-panel.warn li::before {
            background: var(--danger);
            box-shadow: 0 0 8px rgba(255, 107, 107, .45);
        }

        .verify-panel li strong {
            color: #DBEAFD;
            font-weight: 600;
        }

        /* ============ 异常处理步骤 ============ */
        .process-flow {
            padding: 0;
            margin: 0;
        }

        .process-item {
            position: relative;
            padding: 0 0 32px 80px;
        }

        .process-item:last-child {
            padding-bottom: 4px;
        }

        .process-item:not(:last-child)::before {
            content: "";
            position: absolute;
            left: 29px;
            top: 62px;
            bottom: 0;
            width: 1px;
            background: linear-gradient(180deg, rgba(98, 208, 255, .35), rgba(98, 208, 255, .03));
        }

        .process-num {
            position: absolute;
            left: 0;
            top: 0;
            width: 60px;
            height: 60px;
            border-radius: 18px;
            background: radial-gradient(circle at 30% 25%, rgba(255, 138, 92, .16), rgba(255, 138, 92, .03));
            border: 1px solid rgba(255, 138, 92, .24);
            color: var(--coral);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-family: var(--font-num);
            font-weight: 700;
        }

        .process-text h3 {
            font-size: 17.5px;
            margin: 0 0 6px;
            color: #EAF4FF;
        }

        .process-text p {
            color: var(--text-sub);
            font-size: 14.5px;
            line-height: 1.8;
            margin: 0;
            max-width: 720px;
        }

        /* ============ FAQ ============ */
        .faq-panel {
            border: 1px solid var(--line);
            border-radius: 18px;
            overflow: hidden;
            background: rgba(255, 255, 255, .025);
        }

        .faq-panel .accordion-item {
            background: transparent;
            border: none;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .faq-panel .accordion-item:last-child {
            border-bottom: none;
        }

        .faq-panel .accordion-header {
            background: transparent;
        }

        .faq-panel .accordion-button {
            background: transparent;
            border: none;
            min-height: 72px;
            padding: 12px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            font-size: 16px;
            font-weight: 500;
            color: #DCEAFE;
            box-shadow: none;
            transition: background .2s var(--ease), color .2s var(--ease);
        }

        .faq-panel .accordion-button:hover {
            background: rgba(255, 255, 255, .03);
            color: #fff;
        }

        .faq-panel .accordion-button:not(.collapsed) {
            color: #F4FCFF;
            background: rgba(98, 208, 255, .045);
        }

        .faq-panel .accordion-button::after {
            display: none;
        }

        .faq-panel .accordion-button .fa-plus {
            flex: 0 0 16px;
            font-size: 15px;
            color: var(--ice);
            transition: transform .22s var(--ease), color .22s var(--ease);
        }

        .faq-panel .accordion-button:not(.collapsed) .fa-plus {
            transform: rotate(135deg);
            color: var(--coral);
        }

        .faq-panel .accordion-body {
            padding: 0 24px 20px 24px;
            color: var(--text-sub);
            font-size: 14.5px;
            line-height: 1.8;
        }

        .faq-panel .accordion-body p:last-child {
            margin-bottom: 0;
        }

        /* ============ CTA ============ */
        .cta-region {
            padding: 20px 0 50px;
        }

        .cta-card {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            padding: 46px 50px;
            border-radius: 28px;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, .1);
            background: linear-gradient(145deg, rgba(12, 24, 46, .72), rgba(8, 16, 31, .88));
            box-shadow: var(--shadow-card);
        }

        .cta-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: -12%;
            width: 46%;
            height: 120%;
            background: radial-gradient(circle at center, rgba(98, 208, 255, .2), transparent 68%);
            pointer-events: none;
        }

        .cta-card::after {
            content: "";
            position: absolute;
            right: 0;
            bottom: 0;
            width: 34%;
            height: 80%;
            background: radial-gradient(circle at center, rgba(255, 138, 92, .13), transparent 70%);
            pointer-events: none;
        }

        .cta-card>* {
            position: relative;
            z-index: 2;
        }

        .cta-card .cta-icon {
            color: var(--coral);
            font-size: 26px;
            margin-bottom: 16px;
        }

        .cta-card h2 {
            font-size: clamp(23px, 3vw, 31px);
            margin-bottom: 14px;
        }

        .cta-card p {
            color: var(--text-sub);
            font-size: 15.5px;
            max-width: 620px;
            margin: 0;
        }

        .cta-card .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            flex-shrink: 0;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: #050B16;
            border-top: 1px solid rgba(255, 255, 255, .075);
            padding-top: 70px;
        }

        .site-footer .container {
            padding-bottom: 26px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2.1fr .9fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 44px;
        }

        .footer-brand .brand {
            margin-bottom: 16px;
        }

        .footer-desc {
            color: var(--text-weak);
            font-size: 14px;
            line-height: 1.8;
            max-width: 340px;
            margin: 4px 0 0;
        }

        .footer-heading {
            font-size: 15.5px;
            color: #E3EFFC;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a,
        .footer-links span {
            color: var(--text-weak);
            font-size: 14px;
            line-height: 1.8;
            display: inline-block;
            transition: color .2s var(--ease), transform .2s var(--ease);
        }

        .footer-links a:hover {
            color: var(--ice);
            transform: translateX(3px);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            border-top: 1px solid rgba(255, 255, 255, .07);
            padding: 20px 0 0;
            color: var(--text-weak);
            font-size: 13.5px;
        }

        .footer-copy .footer-domain {
            color: #99B6D9;
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1199px) {
            .nav-primary li+li {
                margin-left: 22px;
            }

            .nav-primary a {
                font-size: 14.2px;
            }

            .nav-action {
                margin-left: 16px;
                padding-left: 14px;
                font-size: 13.5px;
            }

            .footer-grid {
                grid-template-columns: 1.8fr 0.8fr 1fr 1fr;
            }

            .overview-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (min-width: 992px) {
            .navbar-collapse {
                display: flex;
                align-items: center;
            }
        }

        @media (max-width: 991.98px) {
            .site-navbar {
                padding: 14px 0;
                background: rgba(7, 14, 29, .82);
                -webkit-backdrop-filter: blur(18px);
                backdrop-filter: blur(18px);
                border-bottom-color: rgba(255, 255, 255, .05);
            }

            .category-hero {
                padding-top: 150px;
            }

            .navbar-collapse {
                background: linear-gradient(145deg, #0C182E, #091120);
                border-radius: 16px;
                padding: 24px;
                margin-top: 14px;
                border: 1px solid rgba(255, 255, 255, .08);
            }

            .nav-primary {
                flex-direction: column;
                align-items: flex-start;
                width: 100%;
                gap: 0;
                margin: 0;
            }

            .nav-primary li+li {
                margin-left: 0;
            }

            .nav-primary a {
                width: 100%;
                padding: 12px 0;
                font-size: 15.5px;
                color: var(--text-main);
                border-bottom: 1px solid rgba(255, 255, 255, .05);
            }

            .nav-primary a.active::before,
            .nav-primary a.active::after {
                display: none;
            }

            .nav-primary a.active {
                color: var(--ice);
            }

            .nav-action {
                margin: 16px 0 0;
                padding: 0;
                border-left: none;
                width: 100%;
                font-size: 15px;
            }

            .guide-layout {
                padding-top: 46px;
            }

            .guide-side {
                order: -1;
                margin-bottom: 30px;
            }

            .anchor-panel {
                position: relative;
                top: auto;
            }

            .anchor-nav {
                display: flex;
                flex-wrap: wrap;
                gap: 6px 16px;
                border-left: none;
            }

            .anchor-nav li {
                margin: 0;
            }

            .anchor-nav a {
                border: none;
                border-bottom: 1px solid transparent;
                padding: 4px 2px;
                margin: 0;
                font-size: 14px;
            }

            .anchor-nav a.active,
            .anchor-nav a:hover {
                border-bottom-color: var(--ice);
                background: transparent;
                border-left: none;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }

            .cta-card {
                flex-direction: column;
                align-items: flex-start;
                padding: 36px 30px;
            }
        }

        @media (max-width: 767px) {
            .category-hero {
                padding: 130px 0 56px;
            }

            .category-hero h1 {
                font-size: 34px;
            }

            .hero-lead {
                font-size: 16px;
            }

            .hero-meta {
                gap: 16px;
            }

            .hero-meta span {
                width: 100%;
            }

            .guide-section {
                margin-bottom: 50px;
            }

            .section-head {
                margin-bottom: 20px;
            }

            .overview-grid,
            .check-grid,
            .compare-grid {
                grid-template-columns: 1fr;
            }

            .entry-style-item {
                grid-template-columns: 56px 1fr;
                gap: 14px;
                align-items: start;
                padding: 14px;
            }

            .entry-style-num {
                width: 52px;
                height: 52px;
                border-radius: 14px;
                font-size: 17px;
            }

            .entry-style-icon {
                display: none;
            }

            .entry-article p {
                font-size: 15px;
            }

            .glass-block {
                padding: 22px;
            }

            .access-visual {
                min-height: 260px;
            }

            .verify-panel {
                padding: 20px 18px 10px;
            }

            .process-item {
                padding: 0 0 28px 64px;
            }

            .process-item:not(:last-child)::before {
                left: 23px;
            }

            .process-num {
                width: 48px;
                height: 48px;
                border-radius: 14px;
                font-size: 17px;
            }

            .faq-panel .accordion-button {
                min-height: 64px;
                padding: 10px 16px 10px 18px;
                font-size: 15px;
            }

            .faq-panel .accordion-button span {
                max-width: 90%;
            }

            .faq-panel .accordion-body {
                padding: 0 16px 18px 18px;
                font-size: 14px;
            }

            .cta-card {
                padding: 28px 22px;
                border-radius: 20px;
            }

            .cta-actions .btn-coral,
            .cta-actions .btn-ghost {
                width: 100%;
            }

            .site-footer {
                padding-top: 50px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 26px;
                padding-bottom: 26px;
            }

            .footer-desc {
                max-width: none;
            }

            .footer-heading {
                margin-bottom: 10px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category2 */
:root {
            --bg-deep: #070E1D;
            --bg-panel: #0A1528;
            --bg-soft: #0C182E;
            --glass-bg: rgba(255, 255, 255, .045);
            --glass-border: rgba(255, 255, 255, .1);
            --ice-1: #3BA7FF;
            --ice-2: #62D0FF;
            --coral-1: #FF8345;
            --coral-2: #FF9E62;
            --danger: #FF6B6B;
            --text-main: #E6F0FF;
            --text-sub: #A6BBDC;
            --text-weak: #7089B0;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-card: 0 16px 44px rgba(0, 0, 0, .28);
            --ease: cubic-bezier(.2, .7, .2, 1);
            --font-sans: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "MiSans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--bg-deep);
            background-image:
                linear-gradient(rgba(98, 208, 255, .024) 1px, transparent 1px),
                linear-gradient(90deg, rgba(98, 208, 255, .024) 1px, transparent 1px);
            background-size: 48px 48px;
            color: var(--text-main);
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color .22s var(--ease), border-color .22s var(--ease), background .22s var(--ease);
        }

        a:hover {
            color: var(--ice-2);
        }

        img {
            max-width: 100%;
            display: block;
        }

        button,
        input {
            font-family: inherit;
        }

        ::selection {
            background: rgba(98, 208, 255, .28);
            color: #fff;
        }

        :focus-visible {
            outline: 2px solid var(--ice-2);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            max-width: 1280px;
        }

        section[id],
        div[id] {
            scroll-margin-top: 100px;
        }

        /* ---------- header ---------- */
        .site-navbar {
            position: sticky;
            top: 0;
            z-index: 1070;
            padding: 14px 0;
            background: rgba(5, 11, 22, .72);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, .07);
            transition: padding .25s var(--ease), background .25s var(--ease), box-shadow .25s var(--ease);
        }

        .site-navbar.scrolled {
            padding: 8px 0;
            background: rgba(4, 9, 18, .88);
            box-shadow: 0 10px 32px rgba(0, 0, 0, .22);
            border-bottom-color: rgba(255, 255, 255, .04);
        }

        .site-navbar .navbar {
            padding: 0;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .brand-mark {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, rgba(98, 208, 255, .18), rgba(10, 21, 40, .2));
            border: 1px solid rgba(98, 208, 255, .38);
            color: var(--ice-2);
            font-size: 15px;
            box-shadow: 0 0 18px rgba(98, 208, 255, .08);
        }

        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.25;
        }

        .brand-title {
            font-size: 1.08rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: .01em;
        }

        .brand-sub {
            font-size: .72rem;
            color: var(--text-weak);
            letter-spacing: .04em;
            margin-top: 2px;
        }

        .nav-primary {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 28px;
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .nav-primary a {
            position: relative;
            display: inline-block;
            padding: 4px 0;
            font-size: 15px;
            color: #B9C8E6;
        }

        .nav-primary a:hover {
            color: #fff;
        }

        .nav-primary a::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: -6px;
            width: 0;
            height: 2px;
            border-radius: 2px;
            background: linear-gradient(90deg, var(--ice-1), var(--ice-2));
            transform: translateX(-50%);
            transition: width .25s var(--ease);
        }

        .nav-primary a.active {
            color: #fff;
            font-weight: 600;
        }

        .nav-primary a.active::after {
            width: calc(100% - 4px);
        }

        .nav-action {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-left: 26px;
            font-size: 15px;
            color: var(--ice-2);
            border-bottom: 1px solid rgba(98, 208, 255, .32);
            padding: 3px 0;
        }

        .nav-action i {
            transition: transform .22s var(--ease);
            font-size: 13px;
        }

        .nav-action:hover {
            color: var(--ice-2);
            border-bottom-color: rgba(98, 208, 255, .8);
        }

        .nav-action:hover i {
            transform: translateX(4px);
        }

        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: 10px;
            padding: 8px 11px;
            background: rgba(255, 255, 255, .03);
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(98, 208, 255, .15);
        }

        .toggler-icon {
            position: relative;
            display: block;
            width: 18px;
            height: 2px;
            background: #D7E4FF;
            border-radius: 3px;
            transition: background .2s;
        }

        .toggler-icon::before,
        .toggler-icon::after {
            content: "";
            position: absolute;
            left: 0;
            width: 100%;
            height: 2px;
            border-radius: 3px;
            background: #D7E4FF;
            transition: transform .25s var(--ease), top .25s var(--ease);
        }

        .toggler-icon::before {
            top: -6px;
        }

        .toggler-icon::after {
            top: 6px;
        }

        .navbar-toggler:not(.collapsed) .toggler-icon {
            background: transparent;
        }

        .navbar-toggler:not(.collapsed) .toggler-icon::before {
            top: 0;
            transform: rotate(45deg);
        }

        .navbar-toggler:not(.collapsed) .toggler-icon::after {
            top: 0;
            transform: rotate(-45deg);
        }

        /* ---------- hero ---------- */
        .page-hero {
            position: relative;
            isolation: isolate;
            min-height: 520px;
            display: flex;
            align-items: center;
            padding: 100px 0 84px;
            background: url('/assets/images/backpic/back-3.webp') center / cover no-repeat;
            border-bottom: 1px solid rgba(255, 255, 255, .05);
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            z-index: 0;
            background:
                radial-gradient(ellipse at 82% 18%, rgba(98, 208, 255, .13), transparent 46%),
                linear-gradient(90deg, rgba(6, 12, 24, .96) 0%, rgba(8, 17, 34, .88) 45%, rgba(7, 14, 29, .82) 100%);
        }

        .page-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(6, 12, 24, .2) 0%, rgba(6, 12, 24, .28) 60%, #070E1D 100%);
            z-index: 0;
        }

        .page-hero .container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb-nav {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-weak);
            padding-bottom: 18px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            margin-bottom: 40px;
        }

        .breadcrumb-nav a:hover {
            color: var(--ice-2);
        }

        .breadcrumb-nav span[aria-current="page"] {
            color: var(--text-sub);
        }

        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 14px;
            border-radius: 999px;
            background: rgba(98, 208, 255, .08);
            border: 1px solid rgba(98, 208, 255, .22);
            color: var(--ice-2);
            font-size: 14px;
        }

        .page-hero h1 {
            font-size: clamp(2.15rem, 4.2vw, 3.4rem);
            line-height: 1.22;
            letter-spacing: -.02em;
            color: #fff;
            margin: 18px 0 14px;
            font-weight: 700;
        }

        .hero-lead {
            max-width: 640px;
            font-size: 1.12rem;
            color: var(--text-sub);
            margin: 0;
            line-height: 1.8;
        }

        .hero-meta-row {
            margin-top: 48px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, .08);
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            align-items: center;
            font-size: 14px;
            color: var(--text-main);
        }

        .hero-meta-row span {
            display: block;
            font-size: 12px;
            color: var(--text-weak);
            letter-spacing: .04em;
        }

        .hero-meta-row div {
            display: flex;
            flex-direction: column;
            line-height: 1.5;
        }

        .status-card {
            background: rgba(8, 17, 34, .6);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: 26px;
            padding: 28px;
            box-shadow: var(--shadow-card);
            max-width: 440px;
            margin-left: auto;
        }

        .status-card-title {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 17px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
        }

        .status-card-title i {
            color: var(--ice-2);
        }

        .status-card-desc {
            font-size: 14px;
            color: var(--text-sub);
            padding-bottom: 16px;
        }

        .status-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .status-list li {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 14px 0;
            border-top: 1px solid rgba(255, 255, 255, .07);
            font-size: 14px;
            color: #DCE7F7;
            line-height: 1.6;
        }

        .status-list li i {
            color: var(--coral-1);
            margin-top: 4px;
            font-size: 13px;
        }

        /* ---------- sections ---------- */
        .section-block {
            padding: 98px 0;
        }

        .section-head {
            max-width: 780px;
            margin-bottom: 54px;
        }

        .section-head .kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(98, 208, 255, .07);
            border: 1px solid rgba(98, 208, 255, .16);
            color: var(--ice-2);
            padding: 6px 13px;
            border-radius: 999px;
            font-size: 13px;
        }

        .section-head h2 {
            font-size: clamp(1.7rem, 3.4vw, 2.5rem);
            line-height: 1.3;
            margin: 16px 0 10px;
            color: #fff;
            font-weight: 700;
            letter-spacing: -.01em;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-sub);
            max-width: 690px;
            margin: 0;
        }

        /* flow / timeline */
        .flow-section {
            background: rgba(8, 16, 32, .66);
            border-top: 1px solid rgba(255, 255, 255, .04);
            border-bottom: 1px solid rgba(255, 255, 255, .04);
        }

        .step-col {
            padding-top: 72px;
        }

        .step-mark {
            position: absolute;
            top: 0;
            left: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 18px;
            background: linear-gradient(135deg, rgba(98, 208, 255, .14), rgba(59, 167, 255, .04));
            border: 1px solid rgba(98, 208, 255, .3);
            color: var(--ice-2);
            font-family: "Inter", "PingFang SC", sans-serif;
            font-size: 15px;
            font-variant-numeric: tabular-nums;
            font-weight: 700;
            box-shadow: 0 0 20px rgba(98, 208, 255, .06);
        }

        .step-col::before {
            content: "";
            position: absolute;
            top: 28px;
            left: 56px;
            right: 2%;
            height: 1px;
            background: linear-gradient(90deg, rgba(98, 208, 255, .36), rgba(98, 208, 255, .05));
        }

        .step-col:last-child::before {
            background: linear-gradient(90deg, rgba(98, 208, 255, .12), transparent);
        }

        .step-col h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #fff;
            margin: 0 0 8px;
        }

        .step-col p {
            font-size: 14px;
            color: var(--text-sub);
            margin: 0;
            padding-right: 8px;
        }

        /* dynamic types */
        .type-card {
            display: flex;
            gap: 20px;
            padding: 26px;
            height: 100%;
            background: rgba(10, 21, 40, .5);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: var(--radius-lg);
            transition: border-color .24s var(--ease), transform .24s var(--ease), background .24s var(--ease);
        }

        .type-card:hover {
            background: rgba(12, 25, 48, .72);
            border-color: rgba(98, 208, 255, .28);
            transform: translateY(-3px);
        }

        .type-icon {
            flex: 0 0 52px;
            height: 52px;
            border-radius: 16px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(98, 208, 255, .08);
            border: 1px solid rgba(98, 208, 255, .22);
            color: var(--ice-2);
            font-size: 18px;
        }

        .type-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin: 0 0 6px;
            color: #fff;
        }

        .type-body>p {
            font-size: 14px;
            color: var(--text-sub);
            margin: 0 0 14px;
            line-height: 1.75;
        }

        .tag-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-list li {
            display: inline-block;
            padding: 5px 11px;
            border-radius: 999px;
            background: rgba(59, 167, 255, .06);
            border: 1px solid rgba(59, 167, 255, .22);
            color: #BFD9F9;
            font-size: 12px;
            line-height: 1.4;
        }

        /* gallery */
        .gallery-section {
            background: rgba(8, 17, 34, .72);
            border-top: 1px solid rgba(255, 255, 255, .04);
            border-bottom: 1px solid rgba(255, 255, 255, .04);
        }

        .gallery-grid {
            display: grid;
            grid-template-columns: 1.25fr .92fr 1fr;
            gap: 22px;
        }

        .g-figure {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, .09);
            background: var(--bg-soft);
            aspect-ratio: 5 / 4;
            min-height: 250px;
        }

        .g-figure:first-child {
            aspect-ratio: 16 / 11;
        }

        .g-figure img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s var(--ease);
        }

        .g-figure::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(6, 12, 24, .1) 30%, rgba(5, 10, 20, .9) 100%);
        }

        .g-figure:hover img {
            transform: scale(1.05);
        }

        .g-figure:hover {
            border-color: rgba(98, 208, 255, .3);
            box-shadow: 0 18px 38px rgba(0, 0, 0, .22);
        }

        .g-cap {
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 2;
            padding: 58px 20px 18px;
        }

        .g-cap h3 {
            margin: 0 0 4px;
            color: #fff;
            font-size: 16px;
            font-weight: 600;
        }

        .g-cap p {
            margin: 0;
            color: rgba(230, 240, 255, .76);
            font-size: 13px;
        }

        /* FAQ */
        .faq-accordion {
            max-width: 920px;
        }

        .faq-accordion .accordion-item {
            background: rgba(255, 255, 255, .025);
            border: 1px solid rgba(255, 255, 255, .07);
            border-radius: 16px !important;
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color .24s var(--ease), background .24s var(--ease);
        }

        .faq-accordion .accordion-item:hover {
            border-color: rgba(98, 208, 255, .22);
            background: rgba(255, 255, 255, .04);
        }

        .faq-accordion .accordion-button {
            background: transparent;
            color: #EAF3FF;
            font-size: 16px;
            font-weight: 600;
            padding: 20px 22px;
            box-shadow: none;
            line-height: 1.6;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: rgba(98, 208, 255, .04);
            color: #fff;
            box-shadow: none;
        }

        .faq-accordion .accordion-button::after {
            background-image: none !important;
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            content: "\f067";
            color: var(--coral-1);
            font-size: 14px;
            width: auto;
            height: auto;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-left: auto;
            flex-shrink: 0;
            transition: transform .25s var(--ease), color .25s var(--ease);
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
            color: var(--coral-2);
        }

        .faq-accordion .accordion-body {
            padding: 0 22px 22px;
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.85;
        }

        /* CTA */
        .cta-panel {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 34px;
            padding: 52px 60px;
            border-radius: 28px;
            border: 1px solid rgba(255, 255, 255, .09);
            background:
                radial-gradient(circle at 82% 16%, rgba(255, 131, 69, .08), transparent 38%),
                radial-gradient(circle at 8% 50%, rgba(98, 208, 255, .08), transparent 36%),
                rgba(9, 19, 35, .82);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

        .cta-title {
            font-size: clamp(1.3rem, 2.8vw, 2rem);
            font-weight: 700;
            color: #fff;
            margin: 0 0 8px;
            line-height: 1.35;
        }

        .cta-desc {
            font-size: 15px;
            color: var(--text-sub);
            margin: 0;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
            flex-shrink: 0;
        }

        .btn-coral {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            padding: 13px 26px;
            border-radius: 14px;
            border: 0;
            background: linear-gradient(135deg, var(--coral-1), var(--coral-2));
            color: #071120;
            font-weight: 700;
            font-size: 15px;
            box-shadow: 0 12px 32px rgba(255, 131, 69, .22);
            transition: transform .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease);
        }

        .btn-coral:hover {
            color: #071120;
            transform: translateY(-2px);
            box-shadow: 0 16px 38px rgba(255, 131, 69, .3);
        }

        .btn-coral:active {
            transform: translateY(0);
            box-shadow: 0 6px 18px rgba(255, 131, 69, .18);
        }

        .btn-outline-line {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            padding: 12px 26px;
            border-radius: 14px;
            border: 1px solid rgba(255, 255, 255, .18);
            background: rgba(255, 255, 255, .03);
            color: #CFDFF2;
            font-weight: 500;
            font-size: 15px;
            transition: border-color .22s var(--ease), background .22s var(--ease), transform .22s var(--ease);
        }

        .btn-outline-line:hover {
            color: #fff;
            border-color: rgba(98, 208, 255, .42);
            background: rgba(98, 208, 255, .06);
            transform: translateY(-2px);
        }

        /* footer */
        .site-footer {
            padding: 72px 0 30px;
            background: #050B16;
            border-top: 1px solid rgba(255, 255, 255, .06);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 38px;
        }

        .footer-desc {
            color: var(--text-sub);
            font-size: 14px;
            max-width: 330px;
            margin: 18px 0 0;
            line-height: 1.8;
        }

        .footer-heading {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 16px;
            line-height: 1.4;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
            line-height: 2.1;
        }

        .footer-links a {
            font-size: 14px;
            color: #91A9C9;
        }

        .footer-links a:hover {
            color: var(--ice-2);
            padding-left: 4px;
        }

        .footer-links span {
            font-size: 14px;
            color: var(--text-weak);
            cursor: default;
        }

        .footer-bottom {
            margin-top: 52px;
            padding-top: 22px;
            border-top: 1px solid rgba(255, 255, 255, .06);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            color: var(--text-weak);
            font-size: 13px;
        }

        .footer-domain {
            color: #86A6CE;
        }

        /* responsive */
        @media (max-width: 1199.98px) {
            .container {
                max-width: 960px;
            }

            .footer-grid {
                grid-template-columns: 1.2fr 1fr 1fr;
            }

            .footer-brand {
                grid-column: span 3;
            }
        }

        @media (max-width: 991.98px) {
            .section-block {
                padding: 76px 0;
            }

            .page-hero {
                padding: 80px 0 70px;
                min-height: auto;
            }

            .navbar-collapse {
                margin-top: 18px;
                padding-top: 18px;
                border-top: 1px solid rgba(255, 255, 255, .07);
            }

            .nav-primary {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }

            .nav-primary a {
                width: 100%;
                padding: 8px 0;
                font-size: 16px;
            }

            .nav-primary a::after {
                display: none;
            }

            .nav-action {
                margin: 12px 0 0;
            }

            .status-card {
                margin: 40px 0 0;
                max-width: 100%;
            }

            .hero-meta-row {
                margin-top: 36px;
            }

            .step-col {
                padding-top: 0;
                padding-left: 76px;
                min-height: 150px;
            }

            .step-mark {
                left: 0;
            }

            .step-col::before {
                top: 0;
                left: 28px;
                right: auto;
                width: 1px;
                height: 100%;
                background: linear-gradient(180deg, rgba(98, 208, 255, .3), rgba(98, 208, 255, .05));
            }

            .step-col:last-child::before {
                display: none;
            }

            .gallery-grid {
                grid-template-columns: 1fr 1fr;
            }

            .cta-panel {
                flex-direction: column;
                align-items: flex-start;
                padding: 40px 34px;
            }

            .footer-grid {
                gap: 30px;
            }
        }

        @media (max-width: 767.98px) {
            body {
                font-size: 15px;
            }

            .section-block {
                padding: 58px 0;
            }

            .page-hero {
                padding: 64px 0 54px;
            }

            .section-head {
                margin-bottom: 36px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-brand {
                grid-column: span 1;
            }

            .cta-panel {
                padding: 30px 22px;
                border-radius: 22px;
            }

            .cta-actions {
                width: 100%;
                flex-direction: column;
                align-items: stretch;
            }

            .btn-coral,
            .btn-outline-line {
                width: 100%;
                justify-content: center;
            }

            .gallery-grid {
                grid-template-columns: 1fr;
            }

            .g-figure,
            .g-figure:first-child {
                min-height: 220px;
                aspect-ratio: 16 / 10;
            }

            .step-col {
                padding-left: 70px;
                min-height: 140px;
            }

            .step-col p {
                padding-right: 0;
            }

            .hero-meta-row {
                gap: 14px;
            }

            .hero-meta-row div {
                flex: 0 0 calc(50% - 16px);
            }

            .type-card {
                flex-direction: column;
                gap: 12px;
                padding: 20px;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 2rem;
            }

            .status-card {
                padding: 20px;
                border-radius: 18px;
            }

            .hero-meta-row {
                gap: 10px;
            }

            .hero-meta-row div {
                flex: 1 1 100%;
            }

            .faq-accordion .accordion-button {
                font-size: 15px;
                padding: 16px 16px;
            }

            .faq-accordion .accordion-body {
                padding: 0 16px 16px;
                font-size: 14px;
            }

            .brand-title {
                font-size: 1rem;
            }

            .brand-sub {
                font-size: .68rem;
            }
        }

/* roulang page: category3 */
:root {
            --bg-deep: #070e1d;
            --bg-panel: #0c182e;
            --bg-glow: rgba(46, 158, 228, 0.06);
            --card-bg: rgba(255, 255, 255, 0.045);
            --card-bg-strong: rgba(255, 255, 255, 0.07);
            --border-line: rgba(255, 255, 255, 0.1);
            --border-line-light: rgba(255, 255, 255, 0.06);
            --text-main: #e6f0ff;
            --text-secondary: #a6bbdc;
            --text-weak: #7089b0;
            --brand-cyan: #62d0ff;
            --brand-blue: #3ba7ff;
            --accent-orange: #ff8345;
            --accent-orange-light: #ff9e62;
            --danger: #ff6b6b;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --shadow-card: 0 20px 50px rgba(0, 0, 0, 0.24);
            --shadow-accent: 0 10px 26px rgba(255, 131, 69, 0.2);
            --transition-smooth: cubic-bezier(0.22, 0.61, 0.36, 1);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Microsoft YaHei", sans-serif;
            background: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        body::before {
            content: "";
            position: fixed;
            inset: 0;
            z-index: 0;
            pointer-events: none;
            background-image: radial-gradient(rgba(59, 167, 255, 0.07) 1px, transparent 1px);
            background-size: 34px 34px;
            opacity: 0.5;
        }

        a {
            color: var(--brand-cyan);
            text-decoration: none;
            transition: color 0.22s var(--transition-smooth);
        }

        a:hover {
            color: #8ee0ff;
        }

        img {
            max-width: 100%;
            display: block;
        }

        ul,
        ol,
        p,
        h1,
        h2,
        h3,
        h4 {
            margin: 0;
            padding: 0;
        }

        .container {
            max-width: 1280px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .site-navbar {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(7, 14, 29, 0.78);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
            transition: background 0.25s var(--transition-smooth), border-color 0.25s var(--transition-smooth);
        }

        .site-navbar .navbar {
            min-height: 76px;
            padding-top: 10px;
            padding-bottom: 10px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .brand-mark {
            position: relative;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(145deg, rgba(59, 167, 255, 0.22), rgba(98, 208, 255, 0.08));
            border: 1px solid rgba(98, 208, 255, 0.4);
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .brand-mark::before {
            content: "";
            width: 10px;
            height: 10px;
            border-radius: 50% 50% 50% 0;
            background: var(--brand-cyan);
            transform: rotate(-45deg);
            box-shadow: 0 0 14px rgba(98, 208, 255, 0.6);
        }

        .brand-title {
            display: block;
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 0.4px;
            color: var(--text-main);
            line-height: 1.25;
        }

        .brand-sub {
            display: block;
            font-size: 10px;
            letter-spacing: 0.5px;
            color: var(--text-weak);
            text-transform: uppercase;
            margin-top: 2px;
        }

        .navbar-toggler {
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: var(--radius-sm);
            padding: 8px 10px;
            background: transparent;
        }

        .toggler-icon {
            display: inline-block;
            width: 18px;
            height: 2px;
            background: var(--text-secondary);
            position: relative;
            border-radius: 2px;
            transition: background 0.2s var(--transition-smooth);
        }

        .toggler-icon::before,
        .toggler-icon::after {
            content: "";
            position: absolute;
            width: 18px;
            height: 2px;
            background: var(--text-secondary);
            border-radius: 2px;
            left: 0;
            transition: transform 0.2s var(--transition-smooth), top 0.2s var(--transition-smooth);
        }

        .toggler-icon::before {
            top: -6px;
        }

        .toggler-icon::after {
            top: 6px;
        }

        .navbar-toggler:not(.collapsed) .toggler-icon {
            background: transparent;
        }

        .navbar-toggler:not(.collapsed) .toggler-icon::before {
            top: 0;
            transform: rotate(45deg);
        }

        .navbar-toggler:not(.collapsed) .toggler-icon::after {
            top: 0;
            transform: rotate(-45deg);
        }

        .nav-primary {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 4px;
            margin: 0;
            padding: 0;
        }

        .nav-primary li a {
            display: inline-block;
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 16px;
            transition: color 0.22s var(--transition-smooth);
        }

        .nav-primary li a::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 1px;
            height: 2px;
            background: var(--brand-cyan);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left center;
            transition: transform 0.24s var(--transition-smooth);
            box-shadow: 0 0 10px rgba(98, 208, 255, 0.5);
        }

        .nav-primary li a:hover,
        .nav-primary li a:focus-visible {
            color: var(--text-main);
        }

        .nav-primary li a.active {
            color: var(--brand-cyan);
        }

        .nav-primary li a.active::after {
            transform: scaleX(1);
        }

        .nav-action {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            border-bottom: 1px solid transparent;
            padding-bottom: 2px;
            transition: color 0.2s var(--transition-smooth), border-color 0.2s var(--transition-smooth), transform 0.2s var(--transition-smooth);
        }

        .nav-action i {
            font-size: 13px;
            transition: transform 0.2s var(--transition-smooth);
        }

        .nav-action:hover {
            color: var(--brand-cyan);
            border-bottom-color: rgba(98, 208, 255, 0.5);
        }

        .nav-action:hover i {
            transform: translateX(3px);
        }

        .page-hero {
            position: relative;
            padding: 108px 0 92px;
            background: linear-gradient(180deg, rgba(7, 14, 29, 0.72), rgba(7, 14, 29, 0.95)), linear-gradient(120deg, rgba(59, 167, 255, 0.08), transparent 48%), url("/assets/images/backpic/back-1.png") center center / cover no-repeat;
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
            z-index: 1;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            width: 520px;
            height: 520px;
            border-radius: 50%;
            left: -180px;
            top: -180px;
            background: radial-gradient(circle, rgba(98, 208, 255, 0.1), transparent 65%);
            pointer-events: none;
        }

        .page-hero .container {
            position: relative;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-weak);
            padding: 0;
            margin-bottom: 30px;
            background: transparent;

        }

        .breadcrumb a {
            color: var(--text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb a:hover {
            color: var(--brand-cyan);
        }

        .breadcrumb .current {
            color: var(--text-main);
            font-weight: 500;
        }

        .hero-title {
            font-size: 56px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.2px;
            margin-bottom: 20px;
        }

        .hero-title .dot {
            color: var(--brand-cyan);
            background: var(--brand-cyan);
            width: 10px;
            height: 10px;
            display: inline-block;
            border-radius: 50%;
            margin-left: 4px;
        }

        .hero-text {
            max-width: 760px;
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 34px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 14px;
        }

        .btn-accent,
        .btn-line,
        .btn-jump {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 600;
            padding: 13px 24px;
            transition: all 0.22s var(--transition-smooth);
            border: 0;
            cursor: pointer;
        }

        .btn-accent {
            background: linear-gradient(135deg, var(--accent-orange-light), var(--accent-orange));
            color: #24130a;
            box-shadow: var(--shadow-accent);
        }

        .btn-accent:hover {
            transform: translateY(-2px);
            filter: brightness(1.04);
            box-shadow: 0 14px 34px rgba(255, 131, 69, 0.3);
            color: #24130a;
        }

        .btn-accent:active {
            transform: translateY(0);
            box-shadow: 0 6px 18px rgba(255, 131, 69, 0.18);
        }

        .btn-line {
            border: 1px solid rgba(255, 255, 255, 0.18);
            background: rgba(255, 255, 255, 0.03);
            color: var(--brand-cyan);
        }

        .btn-line:hover {
            border-color: rgba(98, 208, 255, 0.5);
            color: #8ee0ff;
            transform: translateY(-2px);
        }

        .btn-line:active {
            transform: translateY(0);
        }

        .btn-jump {
            background: transparent;
            color: var(--text-secondary);
            padding: 13px 8px;
        }

        .btn-jump i {
            transition: transform 0.2s var(--transition-smooth);
        }

        .btn-jump:hover {
            color: var(--brand-cyan);
        }

        .btn-jump:hover i {
            transform: translateX(4px);
        }

        .section {
            padding: 112px 0;
            position: relative;
            z-index: 1;
        }

        .section-alt {
            background: rgba(12, 24, 46, 0.38);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.3px;
            color: var(--brand-cyan);
            margin-bottom: 16px;
        }

        .eyebrow::before {
            content: "";
            width: 24px;
            height: 1px;
            background: linear-gradient(90deg, var(--brand-cyan), transparent);
        }

        .section-title {
            font-size: 34px;
            line-height: 1.4;
            font-weight: 700;
            letter-spacing: -0.3px;
            color: var(--text-main);
            margin-bottom: 18px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 560px;
        }

        .faq-split {
            display: grid;
            grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
            gap: 60px;
            align-items: start;
        }

        .faq-sidebar {
            position: sticky;
            top: 110px;
        }

        .anchor-list {
            list-style: none;
            margin-top: 30px;
            padding: 20px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .anchor-list li + li {
            margin-top: 10px;
        }

        .anchor-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-secondary);
            font-size: 14px;
            padding: 6px 0;
            transition: color 0.2s var(--transition-smooth), padding-left 0.2s var(--transition-smooth);
        }

        .anchor-list a::before {
            content: "";
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: currentColor;
            opacity: 0.4;
            flex-shrink: 0;
            transition: opacity 0.2s var(--transition-smooth);
        }

        .anchor-list a:hover {
            color: var(--brand-cyan);
            padding-left: 6px;
        }

        .anchor-list a:hover::before {
            opacity: 1;
            box-shadow: 0 0 10px currentColor;
        }

        .faq-board {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            align-items: start;
        }

        .faq-group {
            background: var(--card-bg);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-lg);
            padding: 22px 22px 8px;
            transition: border-color 0.25s var(--transition-smooth), background 0.25s var(--transition-smooth);
        }

        .faq-group:hover {
            border-color: rgba(98, 208, 255, 0.22);
            background: rgba(255, 255, 255, 0.055);
        }

        .faq-group-title {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            font-weight: 600;
            color: var(--brand-cyan);
            padding-bottom: 16px;
            margin-bottom: 6px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        }

        .faq-group-title .mini-icon {
            width: 30px;
            height: 30px;
            border-radius: 9px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(59, 167, 255, 0.12);
            border: 1px solid rgba(98, 208, 255, 0.16);
            font-size: 13px;
            flex-shrink: 0;
        }

        .rule-accordion + .rule-accordion {
            margin-top: 4px;
        }

        .rule-accordion {
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        }

        .rule-accordion:last-child {
            border-bottom: 0;
        }

        .accordion-button {
            background: transparent !important;
            border: 0 !important;
            box-shadow: none !important;
            width: 100%;
            padding: 16px 2px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main) !important;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            border-radius: 0 !important;
            text-align: left;
            line-height: 1.6;
            transition: color 0.2s var(--transition-smooth);
        }

        .accordion-button:hover,
        .accordion-button:focus-visible {
            color: var(--brand-cyan) !important;
        }

        .accordion-button::after {
            display: none !important;
        }

        .acc-icon {
            width: 26px;
            height: 26px;
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--text-secondary);
            flex-shrink: 0;
            transition: transform 0.24s var(--transition-smooth), color 0.24s var(--transition-smooth), border-color 0.24s var(--transition-smooth);
        }

        .accordion-button[aria-expanded="true"] .acc-icon {
            transform: rotate(45deg);
            color: var(--brand-cyan);
            border-color: rgba(98, 208, 255, 0.5);
        }

        .accordion-body {
            padding: 0 4px 18px;
        }

        .accordion-body p {
            color: var(--text-secondary);
            font-size: 14.5px;
            line-height: 1.85;
        }

        .process-section {
            padding-bottom: 96px;
        }

        .process-title-wrap {
            max-width: 680px;
            margin-bottom: 56px;
        }

        .timeline {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
            border-top: 1px solid rgba(255, 255, 255, 0.09);
            padding-top: 38px;
            position: relative;
        }

        .timeline::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 30%;
            height: 1px;
            background: linear-gradient(90deg, var(--brand-cyan), transparent);
        }

        .tl-step {
            padding-right: 22px;
        }

        .tl-index {
            font-family: "SF Mono", "Roboto Mono", "Consolas", "Menlo", monospace;
            font-variant-numeric: tabular-nums;
            font-size: 16px;
            font-weight: 700;
            color: var(--brand-cyan);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .tl-index::after {
            content: "";
            width: 22px;
            height: 1px;
            background: rgba(98, 208, 255, 0.4);
        }

        .tl-step h3 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 10px;
        }

        .tl-step p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.85;
        }

        .visual-strip {
            display: grid;
            grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
            gap: 56px;
            align-items: center;
        }

        .status-desc-list {
            list-style: none;
        }

        .status-desc-list li {
            display: grid;
            grid-template-columns: 124px minmax(0, 1fr);
            gap: 18px;
            padding: 22px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        }

        .status-desc-list li:last-child {
            border-bottom: 0;
        }

        .status-label {
            font-weight: 600;
            color: var(--text-main);
            font-size: 15px;
            line-height: 1.5;
        }

        .status-label span {
            display: block;
            font-size: 13px;
            font-weight: 400;
            color: var(--text-weak);
            margin-top: 4px;
        }

        .status-intro {
            color: var(--text-secondary);
            font-size: 14.5px;
            line-height: 1.85;
        }

        .media-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            background: rgba(12, 24, 46, 0.9);
            border: 1px solid rgba(255, 255, 255, 0.09);
        }

        .media-frame img {
            width: 100%;
            height: 440px;
            object-fit: cover;
            transition: transform 0.6s var(--transition-smooth);
        }

        .media-card:hover .media-frame img {
            transform: scale(1.03);
        }

        .media-note {
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: 18px;
            background: rgba(7, 14, 29, 0.68);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 16px;
            padding: 14px 16px;
            display: flex;
            gap: 12px;
            align-items: center;
        }

        .media-note .note-icon {
            width: 32px;
            height: 32px;
            border-radius: 10px;
            background: rgba(98, 208, 255, 0.12);
            color: var(--brand-cyan);
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
        }

        .media-note strong {
            display: block;
            font-size: 14px;
            line-height: 1.5;
        }

        .media-note span {
            display: block;
            font-size: 12.5px;
            color: var(--text-secondary);
        }

        .security-panel {
            max-width: 960px;
            margin-top: 28px;
            border: 1px solid rgba(255, 255, 255, 0.09);
            border-radius: var(--radius-lg);
            background: rgba(255, 255, 255, 0.025);
            padding: 8px 32px;
        }

        .safe-item {
            display: grid;
            grid-template-columns: 46px 120px minmax(0, 1fr);
            gap: 22px;
            align-items: center;
            padding: 22px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .safe-item:last-child {
            border-bottom: 0;
        }

        .safe-item .icon-wrap {
            width: 42px;
            height: 42px;
            border-radius: 13px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--brand-cyan);
            background: rgba(59, 167, 255, 0.1);
            border: 1px solid rgba(98, 208, 255, 0.12);
        }

        .safe-item strong {
            display: block;
            font-size: 15px;
            color: var(--text-main);
            line-height: 1.5;
        }

        .safe-item p {
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .cta-box {
            position: relative;
            background: linear-gradient(120deg, rgba(12, 24, 46, 0.96), rgba(14, 32, 58, 0.86)), url("/assets/images/backpic/back-3.webp") center center / cover no-repeat;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            overflow: hidden;
            padding: 48px 54px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
        }

        .cta-box::before {
            content: "";
            position: absolute;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: rgba(255, 131, 69, 0.08);
            top: -200px;
            right: 20px;
            filter: blur(20px);
            pointer-events: none;
        }

        .cta-copy {
            position: relative;
        }

        .cta-copy h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 12px;
        }

        .cta-copy p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 680px;
        }

        .cta-actions {
            position: relative;
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            flex-shrink: 0;
        }

        .site-footer {
            background: #040913;
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            padding: 56px 0 24px;
            position: relative;
            z-index: 1;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.35fr 0.8fr 0.9fr 0.9fr;
            gap: 40px;
            padding-bottom: 42px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-desc {
            margin-top: 18px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.9;
            max-width: 420px;
        }

        .footer-heading {
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.4px;
            color: var(--text-main);
            margin-bottom: 18px;
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li + li {
            margin-top: 10px;
        }

        .footer-links a {
            color: var(--text-secondary);
            font-size: 14px;
            display: inline-block;
            transition: color 0.2s var(--transition-smooth), padding-left 0.2s var(--transition-smooth);
        }

        .footer-links a:hover {
            color: var(--brand-cyan);
            padding-left: 5px;
        }

        .footer-links span {
            color: var(--text-weak);
            font-size: 14px;
            cursor: default;
        }

        .footer-bottom {
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            color: var(--text-weak);
            font-size: 13px;
        }

        .footer-copy {
            color: var(--text-secondary);
        }

        .footer-domain {
            color: var(--text-weak);
            font-variant-numeric: tabular-nums;
        }

        :focus-visible {
            outline: 1px solid var(--brand-cyan);
            outline-offset: 3px;
            border-radius: 4px;
        }

        @media (max-width: 1199.98px) {
            .faq-split {
                gap: 32px;
            }

            .faq-board {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 991.98px) {
            .navbar-collapse {
                padding: 12px 4px 18px;
                margin-top: 6px;
            }

            .navbar-collapse.collapse:not(.show) {
                display: none;
            }

            .nav-primary {
                flex-direction: column;
                gap: 4px;
                margin-top: 12px;
            }

            .nav-primary li a {
                display: block;
                padding: 11px 4px;
                font-size: 16px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }

            .nav-primary li a::after {
                display: none;
            }

            .nav-action {
                margin-top: 14px;
                padding-left: 4px;
            }

            .section {
                padding: 76px 0;
            }

            .faq-split {
                grid-template-columns: 1fr;
            }

            .faq-sidebar {
                position: static;
            }

            .timeline {
                grid-template-columns: 1fr 1fr;
            }

            .visual-strip {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .cta-box {
                flex-direction: column;
                padding: 34px;
                align-items: flex-start;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 767.98px) {
            body {
                font-size: 15px;
            }

            .container {
                padding-left: 18px;
                padding-right: 18px;
            }

            .site-navbar .navbar {
                min-height: 68px;
            }

            .brand-title {
                font-size: 19px;
            }

            .brand-mark {
                width: 32px;
                height: 32px;
            }

            .page-hero {
                padding: 64px 0 58px;
            }

            .hero-title {
                font-size: 33px;
                line-height: 1.35;
            }

            .hero-text {
                font-size: 15.5px;
            }

            .section-title {
                font-size: 28px;
            }

            .section-desc {
                font-size: 15px;
            }

            .faq-board {
                grid-template-columns: 1fr;
            }

            .timeline {
                grid-template-columns: 1fr;
            }

            .timeline::before {
                width: 40%;
            }

            .tl-step {
                padding-right: 0;
                padding-bottom: 24px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            }

            .tl-step:last-child {
                border-bottom: 0;
            }

            .media-frame img {
                height: 300px;
            }

            .safe-item {
                grid-template-columns: 42px minmax(0, 1fr);
                gap: 14px;
                align-items: start;
            }

            .safe-item p {
                grid-column: 2;
            }

            .security-panel {
                padding: 2px 20px;
            }

            .status-desc-list li {
                grid-template-columns: 1fr;
                gap: 6px;
            }

            .cta-box {
                padding: 30px 22px;
            }

            .cta-copy h2 {
                font-size: 23px;
            }

            .cta-actions {
                width: 100%;
            }

            .cta-actions .btn-accent,
            .cta-actions .btn-line {
                width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-actions .btn-accent,
            .hero-actions .btn-line,
            .hero-actions .btn-jump {
                width: 100%;
            }
        }

/* roulang page: category4 */
:root {
            --bg: #070E1D;
            --bg-deep: #05080F;
            --surface: #0C182E;
            --surface-soft: rgba(255, 255, 255, 0.045);
            --card-radius: 18px;
            --border-light: rgba(210, 232, 255, 0.12);
            --border-strong: rgba(210, 232, 255, 0.2);
            --text: #E6F0FF;
            --text-sub: #A9BCD9;
            --text-mute: #738FB3;
            --ice: #62D0FF;
            --ice-deep: #3BA7FF;
            --coral: #FF8345;
            --coral-soft: #FF9E62;
            --shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
            --font-sans: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "MiSans", "Segoe UI", sans-serif;
            --container-max: 1280px;
            --section-gap: clamp(64px, 10vw, 108px);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--bg);
            color: var(--text);
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

        body::before {
            content: "";
            position: fixed;
            inset: 0;
            pointer-events: none;
            z-index: 0;
            background: radial-gradient(rgba(59, 171, 255, 0.08) 1px, transparent 1px);
            background-size: 36px 36px;
            opacity: 0.25;
        }

        img,
        svg {
            max-width: 100%;
            vertical-align: middle;
        }

        a {
            color: var(--ice);
            text-decoration: none;
            transition: color 0.2s ease, border-color 0.2s ease;
        }

        a:hover {
            color: #8FDBFF;
        }

        button {
            font-family: inherit;
        }

        :focus-visible {
            outline: 1px solid rgba(98, 208, 255, 0.9);
            outline-offset: 3px;
            border-radius: 6px;
        }

        .container {
            max-width: var(--container-max);
            padding-left: clamp(18px, 4vw, 40px);
            padding-right: clamp(18px, 4vw, 40px);
        }

        /* ===== shared navbar ===== */
        .site-navbar {
            position: sticky;
            top: 0;
            z-index: 1080;
            background: rgba(6, 12, 24, 0.82);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(190, 222, 255, 0.1);
        }

        .site-navbar .navbar {
            position: relative;
            z-index: 1;
            min-height: 72px;
            padding: 10px 0;
        }

        .site-navbar .brand {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            color: var(--text);
            text-decoration: none;
        }

        .brand-mark {
            position: relative;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(145deg, rgba(98, 208, 255, 0.16), rgba(59, 171, 255, 0.06));
            border: 1px solid rgba(98, 208, 255, 0.42);
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .brand-mark::before {
            content: "";
            width: 14px;
            height: 14px;
            border: 2px solid var(--ice);
            border-radius: 50% 50% 50% 4px;
            transform: rotate(-45deg);
            box-shadow: 0 0 0 4px rgba(98, 208, 255, 0.08);
        }

        .brand-mark::after {
            content: "";
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--coral);
            position: absolute;
            top: 12px;
            left: 12px;
            box-shadow: 0 0 8px rgba(255, 131, 69, 0.8);
        }

        .site-navbar .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.15;
        }

        .site-navbar .brand-title {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 0.01em;
        }

        .site-navbar .brand-sub {
            font-size: 11px;
            color: var(--text-mute);
            letter-spacing: 0.12em;
            text-transform: uppercase;
        }

        .nav-primary {
            display: flex;
            align-items: center;
            gap: 30px;
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .nav-primary a {
            position: relative;
            display: inline-block;
            padding: 8px 2px 10px;
            color: var(--text-sub);
            font-size: 15px;
            font-weight: 500;
            line-height: 1.2;
            text-decoration: none;
            border-bottom: 2px solid transparent;
        }

        .nav-primary a::after {
            content: "";
            position: absolute;
            left: 0;
            right: 100%;
            bottom: 4px;
            height: 2px;
            border-radius: 4px;
            background: linear-gradient(90deg, var(--ice-deep), var(--ice));
            transition: right 0.28s cubic-bezier(0.22, 1, 0.36, 1);
        }

        .nav-primary a:hover,
        .nav-primary a.active {
            color: var(--text);
        }

        .nav-primary a:hover::after,
        .nav-primary a.active::after {
            right: 0;
        }

        .nav-primary a.active {
            color: #DDF2FF;
        }

        .site-navbar .navbar-toggler {
            border: 1px solid var(--border-light);
            border-radius: 10px;
            width: 44px;
            height: 40px;
            padding: 6px;
            background: rgba(255, 255, 255, 0.03);
            box-shadow: none;
        }

        .toggler-icon {
            display: block;
            width: 22px;
            height: 2px;
            margin: 0 auto;
            background: var(--ice);
            border-radius: 2px;
            position: relative;
            transition: background 0.2s;
        }

        .toggler-icon::before,
        .toggler-icon::after {
            content: "";
            position: absolute;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--ice);
            border-radius: 2px;
            transition: transform 0.28s ease, top 0.28s ease;
        }

        .toggler-icon::before {
            top: -7px;
        }

        .toggler-icon::after {
            top: 7px;
        }

        .site-navbar .navbar-toggler[aria-expanded="true"] .toggler-icon {
            background: transparent;
        }

        .site-navbar .navbar-toggler[aria-expanded="true"] .toggler-icon::before {
            top: 0;
            transform: rotate(45deg);
        }

        .site-navbar .navbar-toggler[aria-expanded="true"] .toggler-icon::after {
            top: 0;
            transform: rotate(-45deg);
        }

        .nav-action {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            font-weight: 600;
            color: var(--ice);
            text-decoration: none;
            padding: 9px 2px;
            margin-left: 34px;
            border-bottom: 1px solid rgba(98, 208, 255, 0.4);
        }

        .nav-action i {
            transition: transform 0.2s ease;
        }

        .nav-action:hover {
            color: #DDF4FF;
            border-bottom-color: rgba(221, 244, 255, 0.7);
        }

        .nav-action:hover i {
            transform: translateX(3px);
        }

        /* ===== shared footer ===== */
        .site-footer {
            background: #050A13;
            border-top: 1px solid rgba(205, 226, 255, 0.1);
            padding: 72px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.1fr;
            gap: 44px;
        }

        .footer-brand .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--text);
            text-decoration: none;
            margin-bottom: 16px;
        }

        .footer-brand .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.15;
        }

        .footer-brand .brand-title {
            font-size: 20px;
            font-weight: 700;
        }

        .footer-brand .brand-sub {
            font-size: 11px;
            color: var(--text-mute);
            letter-spacing: 0.12em;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.9;
            max-width: 420px;
            margin: 0;
        }

        .footer-heading {
            color: #EAF4FF;
            font-size: 16px;
            font-weight: 600;
            margin: 0 0 20px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-links a,
        .footer-links span {
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.4;
            text-decoration: none;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

        .footer-links span {
            color: var(--text-mute);
        }

        .footer-links a:hover {
            color: var(--ice);
            padding-left: 3px;
        }

        .footer-bottom {
            margin-top: 56px;
            padding-top: 22px;
            border-top: 1px solid rgba(205, 226, 255, 0.1);
            display: flex;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            color: var(--text-mute);
            font-size: 13px;
        }

        .footer-copy .footer-domain {
            color: var(--text-sub);
        }

        /* ===== buttons / section kicker ===== */
        .btn-main,
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 13px 28px;
            border-radius: 14px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.2;
            border: none;
            text-decoration: none;
            transition: all 0.22s cubic-bezier(0.22, 1, 0.36, 1);
        }

        .btn-main {
            color: #1A1710;
            background: linear-gradient(135deg, #FF8B50, #FF6F2E);
            box-shadow: 0 14px 30px rgba(255, 122, 57, 0.28);
        }

        .btn-main:hover {
            color: #fff;
            background: linear-gradient(135deg, #FF9A68, #FF8345);
            transform: translateY(-2px);
            box-shadow: 0 18px 38px rgba(255, 122, 57, 0.34);
        }

        .btn-main:active {
            transform: translateY(0);
            box-shadow: 0 8px 22px rgba(255, 122, 57, 0.2);
        }

        .btn-ghost {
            color: var(--ice);
            border: 1px solid rgba(98, 208, 255, 0.45);
            background: rgba(98, 208, 255, 0.04);
        }

        .btn-ghost:hover {
            color: #E6F7FF;
            border-color: rgba(98, 208, 255, 0.8);
            background: rgba(98, 208, 255, 0.08);
            transform: translateY(-2px);
        }

        .btn-link-arrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            color: var(--ice);
            text-decoration: none;
            border-bottom: 1px solid rgba(98, 208, 255, 0.3);
            padding-bottom: 2px;
            transition: gap 0.2s ease, color 0.2s ease, border-color 0.2s ease;
        }

        .btn-link-arrow:hover {
            color: #E4F5FF;
            gap: 13px;
            border-color: rgba(228, 245, 255, 0.6);
        }

        .section-kicker {
            display: flex;
            align-items: center;
            gap: 14px;
            color: var(--ice);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.1em;
            margin: 0 0 22px;
            text-transform: uppercase;
        }

        .section-kicker::before {
            content: "";
            width: 28px;
            height: 1px;
            background: linear-gradient(90deg, var(--ice-deep), transparent);
        }

        .section-title {
            color: var(--text);
            font-size: clamp(28px, 4vw, 40px);
            line-height: 1.3;
            font-weight: 700;
            letter-spacing: -0.01em;
            margin: 0 0 20px;
        }

        .section-lead {
            color: var(--text-sub);
            font-size: 16px;
            line-height: 1.9;
            max-width: 720px;
            margin: 0;
        }

        /* ===== category 4 hero ===== */
        .resource-hero {
            position: relative;
            padding: clamp(72px, 8vw, 130px) 0 54px;
            background: url("/assets/images/backpic/back-1.png") center / cover no-repeat;
        }

        .resource-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(4, 10, 22, 0.82) 8%, rgba(4, 10, 22, 0.48) 60%, rgba(7, 14, 29, 0.78) 100%),
                linear-gradient(180deg, #070E1D 0%, rgba(7, 14, 29, 0.25) 48%, #070E1D 100%);
        }

        .resource-hero .container {
            position: relative;
            z-index: 2;
        }

        .resource-hero-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.85fr;
            gap: clamp(30px, 5vw, 72px);
            align-items: center;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(98, 208, 255, 0.1);
            border: 1px solid rgba(98, 208, 255, 0.24);
            color: var(--ice);
            font-size: 13px;
            padding: 7px 13px;
            border-radius: 40px;
            margin-bottom: 24px;
        }

        .hero-tag i {
            font-size: 12px;
        }

        .resource-hero h1 {
            font-size: clamp(34px, 5vw, 58px);
            font-weight: 700;
            line-height: 1.24;
            letter-spacing: 0.01em;
            margin: 0 0 22px;
            text-shadow: 0 4px 16px rgba(0, 0, 0, 0.6);
        }

        .resource-hero h1 span {
            color: transparent;
            background: linear-gradient(90deg, var(--ice), #A3E7FF);
            -webkit-background-clip: text;
            background-clip: text;
        }

        .hero-sub {
            color: #C3D2E8;
            font-size: 17px;
            line-height: 1.85;
            max-width: 620px;
            margin: 0 0 22px;
        }

        .hero-points {
            list-style: none;
            margin: 0 0 36px;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 18px 28px;
        }

        .hero-points li {
            position: relative;
            color: var(--text-sub);
            padding-left: 22px;
            font-size: 14px;
        }

        .hero-points li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 10px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--ice);
            box-shadow: 0 0 8px rgba(98, 208, 255, 0.9);
        }

        .hero-actions {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
            align-items: center;
        }

        .hero-info-note {
            font-size: 13px;
            color: var(--text-mute);
            margin-top: 14px;
            display: block;
        }

        .hero-stat {
            position: relative;
            border-radius: 22px;
            padding: clamp(18px, 2vw, 26px);
            background: rgba(10, 18, 34, 0.68);
            border: 1px solid rgba(190, 220, 255, 0.14);
            backdrop-filter: blur(14px);
            box-shadow: var(--shadow);
            overflow: hidden;
        }

        .hero-stat::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(145deg, rgba(98, 208, 255, 0.08), transparent 50%);
            pointer-events: none;
        }

        .stat-head {
            display: flex;
            justify-content: space-between;
            gap: 12px;
            color: #D6E6FA;
            font-size: 14px;
            border-bottom: 1px solid rgba(230, 245, 255, 0.14);
            padding-bottom: 16px;
        }

        .stat-pulse {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: #8FD9FF;
            font-size: 12px;
        }

        .stat-pulse i {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: #56D9B2;
            box-shadow: 0 0 0 4px rgba(86, 217, 178, 0.12);
        }

        .stat-value {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
            margin: 18px 0 6px;
        }

        .stat-cell {
            flex: 1;
            min-width: 80px;
        }

        .stat-cell b {
            display: block;
            font-size: 24px;
            font-weight: 700;
            color: #FFFFFF;
        }

        .stat-cell span {
            font-size: 12px;
            color: var(--text-mute);
        }

        .hero-stat img {
            width: 100%;
            height: 110px;
            object-fit: cover;
            border-radius: 14px;
            margin-top: 16px;
            border: 1px solid var(--border-light);
        }

        /* ===== category index ===== */
        .category-section {
            padding: var(--section-gap) 0;
            position: relative;
        }

        .category-section:nth-of-type(even) {
            background: linear-gradient(180deg, rgba(12, 24, 46, 0.3) 0%, transparent 40%), var(--bg);
        }

        /* ===== resource tiles ===== */
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 42px;
        }

        .resource-tile {
            position: relative;
            padding: 26px 22px 22px;
            border-radius: var(--card-radius);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(205, 225, 255, 0.12);
            transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
        }

        .resource-tile:hover {
            border-color: rgba(98, 208, 255, 0.45);
            background: rgba(255, 255, 255, 0.06);
            transform: translateY(-4px);
        }

        .resource-tile .tile-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 16px;
        }

        .resource-tile .tile-icon {
            width: 44px;
            height: 44px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            color: var(--ice);
            background: rgba(98, 208, 255, 0.1);
            border: 1px solid rgba(98, 208, 255, 0.18);
        }

        .resource-tile .tile-count {
            color: var(--coral);
            font-weight: 700;
            font-size: 20px;
            font-variant-numeric: tabular-nums;
        }

        .resource-tile h3 {
            font-size: 18px;
            font-weight: 600;
            margin: 0 0 12px;
            color: #EFF6FF;
        }

        .resource-tile p {
            margin: 0 0 20px;
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.75;
            min-height: 0;
        }

        .resource-tile .tile-state {
            display: inline-block;
            font-size: 12px;
            color: var(--text-mute);
            border: 1px solid rgba(205, 225, 255, 0.1);
            padding: 2px 8px;
            border-radius: 20px;
        }

        /* ===== resource list ===== */
        .resource-list-wrap {
            margin-top: 34px;
            border: 1px solid var(--border-light);
            border-radius: 20px;
            background: rgba(10, 18, 32, 0.45);
            overflow: hidden;
        }

        .list-head {
            display: grid;
            grid-template-columns: 58px 1.4fr 2fr 96px 130px 104px;
            gap: 16px;
            align-items: center;
            padding: 14px 22px;
            font-size: 13px;
            letter-spacing: 0.04em;
            color: var(--text-mute);
            border-bottom: 1px solid rgba(205, 225, 255, 0.1);
            background: rgba(98, 208, 255, 0.03);
        }

        .list-row {
            display: grid;
            grid-template-columns: 58px 1.4fr 2fr 96px 130px 104px;
            gap: 16px;
            align-items: center;
            padding: 20px 22px;
            border-bottom: 1px solid rgba(205, 225, 255, 0.08);
            transition: background 0.2s ease;
        }

        .list-row:last-child {
            border-bottom: none;
        }

        .list-row:hover {
            background: rgba(98, 208, 255, 0.05);
        }

        .row-order {
            color: var(--ice-deep);
            font-size: 13px;
            font-weight: 700;
            font-variant-numeric: tabular-nums;
            opacity: 0.8;
        }

        .row-title {
            font-weight: 600;
            color: #EAF3FF;
            font-size: 15px;
        }

        .row-desc {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        .row-date {
            font-size: 13px;
            color: var(--text-mute);
            font-variant-numeric: tabular-nums;
        }

        .row-format {
            font-size: 12px;
            color: #AFCBEC;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(59, 171, 255, 0.08);
            padding: 3px 9px;
            border-radius: 20px;
            width: max-content;
        }

        .row-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--ice);
            white-space: nowrap;
        }

        .row-link:hover {
            color: #DDF5FF;
        }

        /* ===== process steps ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 40px;
            counter-reset: pathStep;
        }

        .process-step {
            position: relative;
            padding: 10px 4px 0 44px;
        }

        .process-step::before {
            counter-increment: pathStep;
            content: counter(pathStep);
            position: absolute;
            left: 0;
            top: 10px;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            border: 1px solid rgba(98, 208, 255, 0.45);
            background: rgba(98, 208, 255, 0.08);
            color: var(--ice);
            font-weight: 700;
            font-size: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .process-step h3 {
            font-size: 18px;
            font-weight: 600;
            margin: 0 0 14px;
            color: #EAF3FF;
        }

        .process-step p {
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.8;
            margin: 0;
        }

        .process-note {
            margin-top: 42px;
            padding: 18px 22px;
            border-radius: 14px;
            background: rgba(255, 131, 69, 0.07);
            border: 1px solid rgba(255, 131, 69, 0.24);
            color: #E4C7B5;
            font-size: 14px;
            line-height: 1.85;
        }

        .process-note i {
            color: var(--coral);
            margin-right: 8px;
        }

        /* ===== image feature ===== */
        .feature-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: clamp(28px, 5vw, 64px);
            align-items: center;
        }

        .feature-visual {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow);
        }

        .feature-visual img {
            width: 100%;
            height: 340px;
            object-fit: cover;
            display: block;
            transition: transform 0.5s ease;
        }

        .feature-visual:hover img {
            transform: scale(1.03);
        }

        .feature-visual::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 44%, rgba(2, 6, 12, 0.8));
            pointer-events: none;
        }

        .visual-caption {
            position: absolute;
            left: 20px;
            right: 20px;
            bottom: 16px;
            z-index: 1;
            color: #DDF3FF;
            font-size: 13px;
            display: flex;
            justify-content: space-between;
            gap: 12px;
        }

        .visual-caption i {
            color: var(--ice);
        }

        .feature-copy h2 {
            margin-top: 16px;
        }

        .mini-check-group {
            list-style: none;
            margin: 28px 0;
            padding: 0;
        }

        .mini-check-group li {
            padding: 9px 0 9px 28px;
            position: relative;
            color: var(--text-sub);
            font-size: 15px;
            border-bottom: 1px solid rgba(205, 225, 255, 0.07);
        }

        .mini-check-group li::before {
            content: "\f00c";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            left: 4px;
            top: 9px;
            color: var(--ice);
            font-size: 13px;
        }

        .mini-check-group li:last-child {
            border-bottom: none;
        }

        /* ===== faq ===== */
        .faq-layout {
            display: grid;
            grid-template-columns: 0.85fr 1.15fr;
            gap: clamp(32px, 5vw, 70px);
            align-items: start;
        }

        .faq-sticky {
            position: sticky;
            top: 108px;
        }

        .accordion-custom {
            border: 1px solid var(--border-light);
            border-radius: 18px;
            overflow: hidden;
        }

        .accordion-custom .accordion-item {
            background: rgba(255, 255, 255, 0.025);
            border: none;
            border-bottom: 1px solid rgba(205, 225, 255, 0.09);
        }

        .accordion-custom .accordion-item:last-child {
            border-bottom: none;
        }

        .accordion-custom .accordion-button {
            background: transparent;
            box-shadow: none;
            color: #EAF4FF;
            font-size: 16px;
            font-weight: 500;
            padding: 17px 58px 17px 22px;
            line-height: 1.6;
            position: relative;
            border: none;
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            background: rgba(98, 208, 255, 0.04);
            color: #F4FAFF;
        }

        .accordion-custom .accordion-button::after {
            content: "+";
            font-family: var(--font-sans);
            background: none;
            width: 34px;
            height: 34px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            border: 1px solid rgba(98, 208, 255, 0.28);
            color: var(--ice);
            font-size: 22px;
            line-height: 0;
            position: absolute;
            right: 18px;
            top: 50%;
            transform: translateY(-50%);
            transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
        }

        .accordion-custom .accordion-button:not(.collapsed)::after {
            transform: translateY(-50%) rotate(45deg);
            background: rgba(98, 208, 255, 0.1);
            color: var(--ice);
        }

        .accordion-custom .accordion-button:focus {
            box-shadow: none;
            border-radius: 0;
        }

        .accordion-custom .accordion-body {
            padding: 0 22px 22px 22px;
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.9;
            background: rgba(3, 10, 20, 0.18);
        }

        .accordion-custom .accordion-body strong {
            color: #DCEAFC;
            font-weight: 600;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: clamp(56px, 8vw, 100px) 0;
            background: linear-gradient(180deg, rgba(12, 24, 46, 0.24), transparent), transparent;
        }

        .cta-panel {
            position: relative;
            border-radius: 28px;
            padding: clamp(30px, 4vw, 60px);
            background: linear-gradient(135deg, rgba(14, 27, 46, 0.92), rgba(7, 14, 29, 0.85));
            border: 1px solid rgba(130, 190, 255, 0.22);
            box-shadow: 0 30px 70px rgba(0, 0, 0, 0.45);
            overflow: hidden;
        }

        .cta-panel::before {
            content: "";
            position: absolute;
            right: -80px;
            top: -100px;
            width: 300px;
            height: 240px;
            background: radial-gradient(closest-side, rgba(98, 208, 255, 0.2), transparent);
        }

        .cta-panel::after {
            content: "";
            position: absolute;
            left: 10%;
            bottom: -120px;
            width: 320px;
            height: 260px;
            background: radial-gradient(closest-side, rgba(255, 131, 69, 0.16), transparent);
        }

        .cta-grid {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1.5fr 0.8fr;
            gap: 30px;
            align-items: center;
        }

        .cta-grid h2 {
            margin: 0 0 16px;
            font-size: clamp(26px, 3.4vw, 38px);
            line-height: 1.35;
            font-weight: 700;
            color: #F1F7FF;
        }

        .cta-grid p {
            margin: 0;
            color: var(--text-sub);
            font-size: 16px;
            line-height: 1.9;
        }

        .cta-actions {
            display: flex;
            gap: 16px;
            flex-direction: column;
            align-items: center;
        }

        .cta-actions .btn-main {
            width: 100%;
            min-height: 52px;
        }

        .cta-small {
            font-size: 13px;
            color: var(--text-mute);
            text-align: center;
        }

        /* ===== responsive ===== */
        @media (min-width: 1800px) {
            body::before {
                background-size: 40px 40px;
            }
        }

        @media (max-width: 1199.98px) {
            .resource-hero-grid {
                grid-template-columns: 1.1fr 0.9fr;
            }

            .resource-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px 24px;
            }

            .list-head,
            .list-row {
                grid-template-columns: 40px 1.3fr 1.8fr 88px 110px;
            }

            .list-head .column-format,
            .list-row .row-format {
                display: none;
            }
        }

        @media (max-width: 991.98px) {
            .site-navbar .nav-primary {
                align-items: stretch;
                gap: 0;
                padding: 14px 20px;
            }

            .nav-primary a {
                display: block;
                padding: 12px 0;
                border-bottom: 1px solid rgba(205, 225, 255, 0.06);
            }

            .nav-primary a::after {
                display: none;
            }

            .nav-primary a.active {
                color: var(--ice);
            }

            .nav-action {
                margin-left: 0;
                margin-top: 14px;
                align-self: flex-start;
            }

            .site-navbar .navbar-collapse {
                background: rgba(5, 10, 20, 0.98);
                border-radius: 16px;
                margin-top: 14px;
                border: 1px solid rgba(205, 225, 255, 0.12);
                box-shadow: 0 18px 36px rgba(0, 0, 0, 0.32);
                padding: 8px 0 16px;
            }

            .resource-hero-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .resource-hero {
                padding-top: 62px;
            }

            .hero-stat {
                max-width: 620px;
            }

            .feature-wrap {
                grid-template-columns: 1fr;
            }

            .faq-layout {
                grid-template-columns: 1fr;
            }

            .faq-sticky {
                position: static;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }

            .footer-desc {
                max-width: 94%;
            }

            .cta-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 767.98px) {
            body {
                line-height: 1.75;
            }

            .site-navbar .navbar {
                min-height: 64px;
                padding: 8px 0;
            }

            .site-navbar .brand-title {
                font-size: 18px;
            }

            .resource-grid {
                grid-template-columns: 1fr;
            }

            .process-grid {
                grid-template-columns: 1fr;
                row-gap: 36px;
            }

            .list-head {
                display: none;
            }

            .resource-list-wrap {
                background: transparent;
                border: none;
            }

            .list-row {
                display: grid;
                grid-template-columns: 1fr;
                gap: 8px;
                padding: 22px;
                border: 1px solid var(--border-light);
                border-radius: 16px;
                background: rgba(255, 255, 255, 0.04);
                margin-bottom: 16px;
            }

            .list-row:hover {
                background: rgba(255, 255, 255, 0.06);
            }

            .row-title {
                font-size: 17px;
            }

            .row-desc {
                font-size: 14px;
            }

            .row-link {
                justify-self: start;
                margin-top: 8px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 6px;
            }
        }

        @media (max-width: 575.98px) {
            .resource-hero h1 {
                font-size: 34px;
                line-height: 1.3;
            }

            .hero-actions .btn-main,
            .hero-actions .btn-ghost {
                width: 100%;
            }

            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .cta-actions .btn-main {
                width: 100%;
            }

            .feature-visual img {
                height: 250px;
            }

            .accordion-custom .accordion-button {
                font-size: 15px;
                padding-right: 52px;
            }

            .site-footer .brand-mark {
                width: 36px;
                height: 36px;
            }
        }