/* roulang page: index */
:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #dbeafe;
            --primary-lighter: #eff6ff;
            --accent: #06b6d4;
            --deep-bg: #0f172a;
            --body-bg: #f8fafc;
            --card-bg: #ffffff;
            --text-main: #1e293b;
            --text-weak: #64748b;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 8px 30px rgba(15, 23, 42, 0.10);
            --shadow-lg: 0 16px 48px rgba(15, 23, 42, 0.16);
            --space-section: 96px;
            --space-sm: 56px;
            --max-width: 1200px;
            --transition: all .25s ease;
            --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background: var(--body-bg);
            color: var(--text-main);
            line-height: 1.7;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        input,
        textarea,
        select {
            font-family: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: var(--space-section) 0;
        }
        .light-bg {
            background: var(--primary-lighter);
        }
        .section-header {
            text-align: center;
            max-width: 720px;
            margin: 0 auto var(--space-sm);
        }
        .section-header.split {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            max-width: none;
            text-align: left;
            margin-bottom: 40px;
        }
        .section-eyebrow {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 100px;
            margin-bottom: 14px;
            letter-spacing: .5px;
        }
        .section-header h2 {
            font-size: clamp(28px, 4vw, 40px);
            line-height: 1.25;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -1px;
        }
        .section-header p {
            margin-top: 12px;
            color: var(--text-weak);
            font-size: 16px;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: saturate(180%) blur(16px);
            -webkit-backdrop-filter: saturate(180%) blur(16px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .top-strip {
            background: var(--deep-bg);
            color: rgba(255, 255, 255, .75);
            font-size: 13px;
            padding: 6px 0;
        }
        .top-strip-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        .top-strip a {
            color: rgba(255, 255, 255, .75);
            margin-left: 16px;
        }
        .top-strip a:hover {
            color: #fff;
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 21px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -1px;
            flex-shrink: 0;
        }
        .brand-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 12px rgba(37, 99, 235, .3);
        }
        .nav-links {
            display: flex;
            gap: 4px;
            align-items: center;
        }
        .nav-link {
            padding: 8px 14px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-weak);
            white-space: nowrap;
        }
        .nav-link:hover {
            background: var(--primary-lighter);
            color: var(--primary);
        }
        .nav-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(37, 99, 235, .25);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-search {
            position: relative;
            display: flex;
            align-items: center;
        }
        .nav-search input {
            height: 38px;
            width: 180px;
            border: 1px solid var(--border);
            border-radius: 100px;
            background: var(--body-bg);
            padding: 0 38px 0 16px;
            font-size: 14px;
            outline: none;
            transition: var(--transition);
        }
        .nav-search input:focus {
            border-color: var(--primary);
            background: #fff;
            width: 220px;
            box-shadow: 0 0 0 3px rgba(37, 99, 235, .12);
        }
        .nav-search button {
            position: absolute;
            right: 4px;
            width: 30px;
            height: 30px;
            border: none;
            background: transparent;
            color: var(--text-light);
            border-radius: 50%;
            font-size: 14px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border);
            border-radius: 8px;
            width: 40px;
            height: 40px;
            font-size: 18px;
            color: var(--text-main);
            align-items: center;
            justify-content: center;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 16px;
            padding: 12px 24px;
            border: none;
            transition: var(--transition);
            line-height: 1.4;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 14px;
            border-radius: 10px;
        }
        .btn-lg {
            padding: 15px 32px;
            font-size: 17px;
            border-radius: 14px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(37, 99, 235, .3);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(37, 99, 235, .4);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(37, 99, 235, .3);
        }
        .btn-ghost {
            background: rgba(255, 255, 255, .15);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, .35);
            backdrop-filter: blur(8px);
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, .25);
            color: #fff;
            box-shadow: 0 8px 24px rgba(0, 0, 0, .15);
        }
        .btn-light {
            background: #fff;
            color: var(--primary);
        }
        .btn-light:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 255, 255, .25);
        }
        .btn:focus-visible {
            outline: 3px solid rgba(37, 99, 235, .5);
            outline-offset: 2px;
        }

        /* Hero */
        .hero {
            position: relative;
            min-height: 640px;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 80px 0;
            color: #fff;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(15, 23, 42, .92) 0%, rgba(15, 23, 42, .72) 45%, rgba(15, 23, 42, .35) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 740px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .15);
            border: 1px solid rgba(255, 255, 255, .25);
            backdrop-filter: blur(10px);
            padding: 8px 18px;
            border-radius: 100px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 22px;
        }
        .hero-badge i {
            color: #34d399;
        }
        .hero h1 {
            font-size: clamp(36px, 6vw, 60px);
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -2px;
            margin-bottom: 20px;
        }
        .hero-sub {
            font-size: 18px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .85);
            margin-bottom: 34px;
            max-width: 620px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 34px;
        }
        .hero-tags {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .hero-tag {
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .2);
            color: rgba(255, 255, 255, .9);
            padding: 6px 14px;
            border-radius: 100px;
            font-size: 13px;
        }

        /* Features */
        .feature-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            transition: var(--transition);
            height: 100%;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 20px;
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .feature-card p {
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.7;
        }

        /* Category Cards */
        .category-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        .category-img {
            position: relative;
            height: 190px;
            overflow: hidden;
        }
        .category-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .category-card:hover .category-img img {
            transform: scale(1.05);
        }
        .category-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(255, 255, 255, .92);
            color: var(--primary);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 100px;
            backdrop-filter: blur(6px);
        }
        .category-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .category-body h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .category-body p {
            color: var(--text-weak);
            font-size: 14px;
            flex: 1;
            margin-bottom: 16px;
        }
        .text-link {
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .text-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }

        /* News */
        .news-layout {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 40px;
            align-items: start;
        }
        .news-feature-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .news-feature-card:hover {
            box-shadow: var(--shadow-md);
        }
        .news-feature-img {
            display: block;
            height: 240px;
            overflow: hidden;
            background: var(--primary-lighter);
        }
        .news-feature-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .news-feature-card:hover .news-feature-img img {
            transform: scale(1.03);
        }
        .news-content {
            padding: 28px;
        }
        .badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 100px;
            margin-bottom: 12px;
        }
        .badge-light {
            background: var(--body-bg);
            color: var(--text-weak);
        }
        .news-content h3 {
            font-size: 22px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 12px;
        }
        .news-content h3 a:hover {
            color: var(--primary);
        }
        .news-content p {
            color: var(--text-weak);
            font-size: 15px;
            margin-bottom: 12px;
            line-height: 1.7;
        }
        .news-content time {
            color: var(--text-light);
            font-size: 13px;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .news-row {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            display: flex;
            align-items: center;
            gap: 14px;
            transition: var(--transition);
        }
        .news-row:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }
        .news-row h4 {
            flex: 1;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.5;
            margin: 0;
        }
        .news-row h4 a:hover {
            color: var(--primary);
        }
        .news-row time {
            color: var(--text-light);
            font-size: 13px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .empty-tip {
            background: #fff;
            border: 1px dashed var(--border);
            border-radius: var(--radius-md);
            padding: 40px;
            text-align: center;
            color: var(--text-weak);
        }

        /* Stats */
        .stats-section {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 80px 0;
            color: #fff;
        }
        .stats-overlay {
            position: absolute;
            inset: 0;
            background: rgba(15, 23, 42, .84);
        }
        .stats-grid {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 24px 12px;
        }
        .stat-item strong {
            display: block;
            font-size: clamp(32px, 5vw, 52px);
            font-weight: 900;
            letter-spacing: -1px;
            line-height: 1.2;
        }
        .stat-item strong span {
            font-size: .45em;
            font-weight: 700;
            margin-left: 2px;
        }
        .stat-item p {
            color: rgba(255, 255, 255, .75);
            font-size: 15px;
            margin-top: 6px;
        }
        .stat-item+.stat-item {
            border-left: 1px solid rgba(255, 255, 255, .15);
        }

        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }
        .step-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            position: relative;
            transition: var(--transition);
            text-align: center;
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
        .step-num {
            width: 52px;
            height: 52px;
            margin: 0 auto 18px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(37, 99, 235, .25);
        }
        .step-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .step-item p {
            color: var(--text-weak);
            font-size: 14px;
            line-height: 1.7;
        }

        /* Resources */
        .resource-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .resource-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        .resource-card img {
            height: 160px;
            width: 100%;
            object-fit: cover;
        }
        .resource-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }
        .resource-body h3 {
            font-size: 17px;
            font-weight: 700;
            margin: 8px 0 10px;
            line-height: 1.5;
        }
        .resource-body p {
            color: var(--text-weak);
            font-size: 14px;
            flex: 1;
            margin-bottom: 16px;
            line-height: 1.7;
        }

        /* FAQ */
        .faq-section {
            background: #fff;
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--body-bg);
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
        }
        .faq-item summary {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            list-style: none;
            background: var(--card-bg);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary i {
            color: var(--text-light);
            transition: transform .3s ease;
        }
        .faq-item[open] summary i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-item p {
            padding: 0 24px 20px;
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.75;
        }

        /* CTA */
        .cta-section {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 100px 0;
            text-align: center;
            color: #fff;
        }
        .cta-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(37, 99, 235, .92), rgba(6, 182, 212, .88));
        }
        .cta-content {
            position: relative;
            z-index: 2;
        }
        .cta-content h2 {
            font-size: clamp(28px, 5vw, 44px);
            font-weight: 900;
            margin-bottom: 16px;
            letter-spacing: -1px;
        }
        .cta-content p {
            font-size: 18px;
            color: rgba(255, 255, 255, .9);
            margin-bottom: 32px;
        }

        /* Footer */
        .site-footer {
            background: var(--deep-bg);
            color: rgba(255, 255, 255, .7);
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
        }
        .footer-brand .brand {
            color: #fff;
            margin-bottom: 16px;
            font-size: 22px;
        }
        .footer-brand p {
            font-size: 14px;
            margin: 16px 0 20px;
            line-height: 1.8;
            max-width: 320px;
            color: rgba(255, 255, 255, .55);
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            background: rgba(255, 255, 255, .08);
            color: rgba(255, 255, 255, .8);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            margin-bottom: 18px;
        }
        .footer-col a {
            display: block;
            padding: 5px 0;
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
        }
        .footer-col a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-col p {
            font-size: 14px;
            margin-top: 4px;
            color: rgba(255, 255, 255, .55);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 24px 0;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, .45);
        }

        /* Grid margin adjust with Foundation */
        .grid-x.grid-margin-x {
            margin-right: -12px;
            margin-left: -12px;
        }
        .grid-x.grid-margin-x>.cell {
            margin-right: 12px;
            margin-left: 12px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            :root {
                --space-section: 72px;
            }
            .nav-links {
                gap: 2px;
            }
            .nav-link {
                padding: 8px 10px;
                font-size: 14px;
            }
            .nav-search input {
                width: 140px;
            }
            .nav-search input:focus {
                width: 160px;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --space-section: 56px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px;
                gap: 8px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .nav-actions .btn-primary {
                display: none;
            }
            .nav-search input {
                width: 120px;
            }
            .nav-search input:focus {
                width: 140px;
            }
            .hero {
                min-height: 520px;
                padding: 60px 0;
            }
            .hero h1 {
                font-size: 40px;
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .stat-item+.stat-item {
                border-left: none;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .top-strip-links {
                display: none;
            }
            .section-header.split {
                flex-direction: column;
                gap: 12px;
                align-items: flex-start;
            }
        }
        @media (max-width: 520px) {
            .hero h1 {
                font-size: 34px;
                letter-spacing: -1px;
            }
            .hero-sub {
                font-size: 16px;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .btn-lg {
                width: 100%;
                padding: 14px 24px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-item {
                padding: 16px 8px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .news-row {
                flex-wrap: wrap;
            }
            .news-row time {
                margin-left: auto;
            }
            .category-body p {
                font-size: 13px;
            }
        }

/* roulang page: article */
:root {
            --primary: #1559d9;
            --primary-dark: #0a3d8c;
            --primary-soft: #e8f0fe;
            --accent: #f7931e;
            --accent-soft: #fff6e7;
            --bg: #f1f5f9;
            --card-bg: #ffffff;
            --text: #10203c;
            --text-muted: #5f6c84;
            --border: #dfe6ee;
            --radius: 14px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(10, 37, 84, .06);
            --shadow: 0 8px 28px rgba(10, 37, 84, .08);
            --shadow-lg: 0 20px 48px rgba(10, 37, 84, .14);
            --transition: all .25s ease;
            --container-w: 1200px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

        a:hover {
            color: var(--primary-dark);
        }

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

        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
        }

        button {
            cursor: pointer;
        }

        .container {
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 72px 0;
        }

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

        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            letter-spacing: -0.5px;
            margin-bottom: 10px;
        }

        .section-head p {
            color: var(--text-muted);
            font-size: 17px;
            max-width: 680px;
        }

        .section-head .section-tag {
            display: inline-block;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 40px;
            margin-bottom: 12px;
            letter-spacing: .3px;
        }

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

        .text-center {
            text-align: center;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
            border: 2px solid transparent;
            justify-content: center;
        }

        .btn:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow);
            color: inherit;
        }

        .btn:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
        }

        .btn-accent:hover {
            background: #e07f0a;
            color: #fff;
        }

        .btn-outline {
            border-color: var(--primary);
            color: var(--primary);
            background: transparent;
        }

        .btn-outline:hover {
            background: var(--primary-soft);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }

        .btn-lg {
            padding: 16px 38px;
            font-size: 16px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 40px;
            line-height: 1.5;
        }

        .badge-soft {
            background: var(--primary-soft);
            color: var(--primary);
        }

        .badge-accent {
            background: var(--accent-soft);
            color: #b56308;
        }

        /* ===== header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: #fff;
            box-shadow: 0 2px 12px rgba(10, 37, 84, .06);
        }

        .top-strip {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, .9);
            font-size: 13px;
            line-height: 40px;
        }

        .top-strip-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .top-strip-text i {
            margin-right: 6px;
            color: var(--accent);
        }

        .top-strip-links {
            display: flex;
            gap: 22px;
        }

        .top-strip-links a {
            color: rgba(255, 255, 255, .92);
            font-size: 13px;
            transition: var(--transition);
        }

        .top-strip-links a:hover {
            color: var(--accent);
        }

        .main-nav {
            border-bottom: 1px solid var(--border);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            gap: 28px;
            min-height: 72px;
            flex-wrap: nowrap;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 14px rgba(21, 89, 217, .35);
        }

        .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            min-width: 0;
        }

        .nav-link {
            padding: 10px 16px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            white-space: nowrap;
            transition: var(--transition);
        }

        .nav-link:hover {
            background: var(--primary-soft);
            color: var(--primary);
        }

        .nav-link.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }

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

        .nav-search {
            display: flex;
            align-items: center;
            background: var(--bg);
            border-radius: 40px;
            border: 1px solid var(--border);
            padding: 4px 6px 4px 16px;
            transition: var(--transition);
            width: 220px;
        }

        .nav-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(21, 89, 217, .12);
        }

        .nav-search input {
            background: transparent;
            border: none;
            outline: none;
            font-size: 14px;
            color: var(--text);
            flex: 1;
            min-width: 0;
        }

        .nav-search button {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .nav-search button:hover {
            background: var(--primary-dark);
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: var(--primary);
            color: #fff;
        }

        /* ===== article hero ===== */
        .article-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(7, 22, 56, .94), rgba(13, 48, 98, .82)), url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            padding: 70px 0 70px;
            color: #fff;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 14px;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 24px;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, .75);
        }

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

        .breadcrumb .sep {
            opacity: .5;
        }

        .article-hero h1 {
            font-size: 36px;
            line-height: 1.35;
            font-weight: 700;
            letter-spacing: -0.5px;
            max-width: 860px;
            margin-bottom: 18px;
            text-shadow: 0 2px 14px rgba(0, 0, 0, .25);
        }

        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 14px;
            color: rgba(255, 255, 255, .85);
        }

        .article-meta .badge {
            background: var(--accent);
            color: #fff;
        }

        .article-meta i {
            margin-right: 6px;
            opacity: .85;
        }

        /* ===== article main ===== */
        .article-layout {
            padding: 52px 0 64px;
        }

        .article-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            overflow: hidden;
            border: 1px solid var(--border);
        }

        .article-card .article-cover {
            max-height: 420px;
            overflow: hidden;
            position: relative;
            background: var(--primary-soft);
        }

        .article-card .article-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .article-body {
            padding: 40px 44px 32px;
        }

        .article-body h2 {
            font-size: 26px;
            font-weight: 700;
            margin: 36px 0 16px;
            line-height: 1.45;
            position: relative;
        }

        .article-body h2::before {
            content: '';
            display: inline-block;
            width: 4px;
            height: 20px;
            background: var(--primary);
            border-radius: 4px;
            margin-right: 10px;
            vertical-align: -2px;
        }

        .article-body h3 {
            font-size: 21px;
            font-weight: 600;
            margin: 28px 0 14px;
            line-height: 1.5;
        }

        .article-body p {
            margin-bottom: 18px;
            color: #334155;
            line-height: 1.85;
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 20px 22px;
            color: #334155;
        }

        .article-body li {
            margin-bottom: 8px;
            line-height: 1.8;
        }

        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-soft);
            padding: 18px 22px;
            border-radius: 0 12px 12px 0;
            margin: 28px 0;
            color: var(--primary-dark);
            font-size: 15px;
        }

        .article-body img {
            border-radius: 12px;
            margin: 24px 0;
            box-shadow: var(--shadow-sm);
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            border-radius: 12px;
            overflow: hidden;
        }

        .article-body table th,
        .article-body table td {
            padding: 12px 18px;
            border: 1px solid var(--border);
            text-align: left;
            font-size: 15px;
        }

        .article-body table th {
            background: var(--primary-soft);
            color: var(--primary-dark);
            font-weight: 600;
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            padding: 22px 44px 30px;
            border-top: 1px solid var(--border);
        }

        .article-tags a {
            display: inline-block;
            padding: 6px 16px;
            background: var(--bg);
            border-radius: 40px;
            font-size: 13px;
            color: var(--text);
            transition: var(--transition);
        }

        .article-tags a:hover {
            background: var(--primary-soft);
            color: var(--primary);
        }

        .article-not-found {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            padding: 70px 44px;
            text-align: center;
            border: 1px solid var(--border);
        }

        .article-not-found h2 {
            font-size: 32px;
            margin-bottom: 14px;
            color: var(--text);
        }

        .article-not-found p {
            color: var(--text-muted);
            font-size: 17px;
            max-width: 460px;
            margin: 0 auto 28px;
        }

        /* ===== sidebar ===== */
        .sidebar-widget {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 26px;
            border: 1px solid var(--border);
            margin-bottom: 26px;
        }

        .sidebar-widget-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-widget-title i {
            color: var(--primary);
        }

        .side-news-item {
            display: block;
            padding: 12px 12px;
            border-radius: 10px;
            transition: var(--transition);
            border-left: 3px solid transparent;
        }

        .side-news-item:hover {
            background: var(--primary-soft);
            border-left-color: var(--primary);
        }

        .side-news-item+.side-news-item {
            border-top: 1px solid var(--border);
        }

        .side-news-title {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 4px;
        }

        .side-news-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .side-news-date {
            font-size: 12px;
        }

        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .sidebar-tags a {
            display: inline-block;
            padding: 6px 14px;
            background: var(--bg);
            border-radius: 40px;
            font-size: 13px;
            color: var(--text);
            transition: var(--transition);
        }

        .sidebar-tags a:hover {
            background: var(--accent-soft);
            color: #b56308;
        }

        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border: none;
            text-align: center;
            padding: 30px 24px;
        }

        .sidebar-cta h4 {
            font-size: 20px;
            margin-bottom: 10px;
            color: #fff;
        }

        .sidebar-cta p {
            color: rgba(255, 255, 255, .85);
            font-size: 14px;
            margin-bottom: 18px;
        }

        .sidebar-cta .btn {
            background: var(--accent);
            color: #fff;
            width: 100%;
        }

        .sidebar-cta .btn:hover {
            background: #e07f0a;
        }

        /* ===== guide cards ===== */
        .guide-section {
            padding: 64px 0;
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .guide-card {
            background: var(--bg);
            border-radius: var(--radius);
            padding: 28px;
            border: 1px solid var(--border);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            background: #fff;
        }

        .guide-card .guide-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: var(--primary-soft);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 18px;
        }

        .guide-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .guide-card p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.75;
            margin-bottom: 18px;
            flex: 1;
        }

        .guide-card .guide-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }

        .guide-card .guide-link:hover {
            gap: 10px;
        }

        /* ===== related cards ===== */
        .related-section {
            padding: 64px 0;
        }

        .related-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
            display: block;
            height: 100%;
        }

        .related-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
        }

        .related-card .related-cover {
            height: 180px;
            background-color: var(--primary-soft);
            overflow: hidden;
        }

        .related-card .related-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .related-card:hover .related-cover img {
            transform: scale(1.05);
        }

        .related-card .related-body {
            padding: 20px 22px 24px;
        }

        .related-card h3 {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 8px;
            color: var(--text);
        }

        .related-card .related-meta {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* ===== faq ===== */
        .faq-section {
            padding: 72px 0;
            background: #fff;
            border-top: 1px solid var(--border);
        }

        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--primary);
        }

        .faq-item summary {
            cursor: pointer;
            padding: 20px 24px;
            font-weight: 600;
            font-size: 16px;
            list-style: none;
            display: flex;
            align-items: center;
            gap: 12px;
            position: relative;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            margin-left: auto;
            transition: var(--transition);
            color: var(--primary);
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }

        .faq-item .faq-answer {
            padding: 0 24px 22px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
        }

        /* ===== cta ===== */
        .cta-section {
            padding: 72px 0;
            background: linear-gradient(135deg, #081936 0%, #0a2d5f 60%, var(--primary-dark) 100%);
            color: #fff;
        }

        .cta-box {
            max-width: 720px;
            margin: 0 auto;
            text-align: center;
        }

        .cta-box h2 {
            font-size: 34px;
            font-weight: 700;
            margin-bottom: 14px;
            color: #fff;
        }

        .cta-box p {
            color: rgba(255, 255, 255, .85);
            font-size: 17px;
            margin-bottom: 30px;
        }

        .cta-btns {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== footer ===== */
        .site-footer {
            background: #0b1a2e;
            color: #94a3b8;
            padding: 64px 0 0;
        }

        .site-footer .brand-text {
            color: #fff;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            margin-top: 14px;
            max-width: 320px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 20px;
        }

        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: rgba(255, 255, 255, .08);
            color: #b6c2d0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .footer-col a {
            display: block;
            color: #94a3b8;
            font-size: 14px;
            padding: 6px 0;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--accent);
            transform: translateX(4px);
        }

        .footer-col p {
            font-size: 14px;
            padding: 5px 0;
            color: #94a3b8;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            padding: 24px 0;
            font-size: 13px;
            color: #64748b;
        }

        .footer-bottom p {
            margin: 0;
        }

        /* ===== responsive ===== */
        @media (max-width: 1024px) {
            .nav-search {
                width: 170px;
            }
            .nav-link {
                padding: 10px 12px;
                font-size: 14px;
            }
            .article-hero h1 {
                font-size: 30px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 900px) {
            .nav-toggle {
                display: inline-flex;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 14px 24px;
                box-shadow: var(--shadow-lg);
                border-top: 1px solid var(--border);
                gap: 4px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links .nav-link {
                padding: 12px 14px;
                width: 100%;
                border-radius: 10px;
            }
            .nav-search {
                display: none;
            }
            .nav-inner {
                gap: 12px;
            }
            .nav-actions .btn-sm {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .article-hero {
                padding: 48px 0;
            }
            .article-hero h1 {
                font-size: 24px;
            }
            .article-body {
                padding: 28px 22px 22px;
            }
            .article-tags {
                padding: 18px 22px 24px;
            }
            .article-layout {
                padding: 36px 0 48px;
            }
            .section-head h2 {
                font-size: 26px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-box h2 {
                font-size: 26px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .top-strip-links {
                display: none;
            }
            .top-strip-text {
                font-size: 12px;
            }
            .brand-text {
                font-size: 17px;
            }
            .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }
            .nav-inner {
                min-height: 60px;
            }
            .article-hero h1 {
                font-size: 20px;
            }
            .article-meta {
                gap: 10px;
                font-size: 13px;
            }
            .guide-card {
                padding: 22px;
            }
            .cta-btns .btn {
                width: 100%;
            }
        }

/* roulang page: category1 */
:root {
    --primary: #0f2b46;
    --primary-light: #17405f;
    --primary-dark: #081d30;
    --accent: #e8a33d;
    --accent-light: #f4b74f;
    --accent-dark: #c77d1f;
    --bg-main: #f4f6fa;
    --bg-white: #ffffff;
    --bg-dark: #0b1e30;
    --text-main: #1f2a37;
    --text-muted: #5b6b7b;
    --border: #e3e8ef;
    --border-light: #eef1f5;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --shadow-sm: 0 4px 14px rgba(15,43,70,0.06);
    --shadow-md: 0 8px 24px rgba(15,43,70,0.08);
    --shadow-lg: 0 14px 38px rgba(15,43,70,0.13);
    --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    --container-w: 1200px;
    --header-height: 72px;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}
body {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-main);
    background: var(--bg-main);
    -webkit-font-smoothing: antialiased;
}
a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}
a:hover {
    color: var(--accent-dark);
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
ul, ol {
    list-style: none;
}
button, input, select, textarea {
    font-family: inherit;
    border: none;
    outline: none;
    background: none;
}
a:focus-visible, button:focus-visible, input:focus-visible {
    outline: 3px solid rgba(232, 163, 61, 0.5);
    outline-offset: 2px;
}
section[id] {
    scroll-margin-top: 96px;
}

.container {
    max-width: var(--container-w);
    margin: 0 auto;
    padding: 0 24px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    line-height: 1.4;
    border: 2px solid transparent;
    white-space: nowrap;
}
.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.btn:active {
    transform: translateY(0);
    box-shadow: none;
}
.btn-accent {
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    color: var(--primary-dark);
    border-color: rgba(255, 255, 255, 0.3);
}
.btn-accent:hover {
    background: linear-gradient(135deg, var(--accent-light), var(--accent));
    color: var(--primary-dark);
}
.btn-primary {
    background: var(--primary);
    color: #fff;
}
.btn-primary:hover {
    background: var(--primary-light);
    color: #fff;
}
.btn-ghost {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.7);
}
.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    border-color: #fff;
}
.btn-sm {
    padding: 8px 18px;
    font-size: 14px;
}
.btn-lg {
    padding: 16px 36px;
    font-size: 16px;
}

.section {
    padding: 84px 0;
}
.section-header {
    text-align: center;
    margin-bottom: 52px;
}
.section-tag {
    display: inline-block;
    padding: 5px 16px;
    background: rgba(232, 163, 61, 0.14);
    color: var(--accent-dark);
    font-size: 13px;
    font-weight: 600;
    border-radius: 999px;
    margin-bottom: 14px;
    letter-spacing: 0.5px;
}
.section-title {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.3;
    margin-bottom: 14px;
    letter-spacing: 0.5px;
}
.section-desc {
    font-size: 16px;
    color: var(--text-muted);
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.8;
}

.grid-x > .cell {
    display: flex;
    margin-bottom: 24px;
}
.grid-x > .cell > * {
    width: 100%;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--bg-white);
    box-shadow: 0 2px 18px rgba(15, 43, 70, 0.08);
}
.top-strip {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.85);
    font-size: 13px;
    padding: 6px 0;
}
.top-strip-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container-w);
    margin: 0 auto;
    padding: 0 24px;
}
.top-strip-text i {
    color: var(--accent);
    margin-right: 6px;
}
.top-strip-links a {
    color: rgba(255, 255, 255, 0.8);
    margin-left: 18px;
    font-size: 13px;
}
.top-strip-links a:hover {
    color: var(--accent);
}
.main-nav {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-light);
    position: relative;
}
.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    gap: 16px;
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    flex-shrink: 0;
}
.brand-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--accent);
    font-size: 16px;
    box-shadow: var(--shadow-sm);
}
.brand-text {
    letter-spacing: 0.5px;
}
.nav-links {
    display: flex;
    gap: 4px;
    align-items: center;
    flex-wrap: wrap;
}
.nav-link {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-muted);
    transition: var(--transition);
}
.nav-link:hover {
    color: var(--primary);
    background: rgba(15, 43, 70, 0.05);
}
.nav-link.active {
    color: var(--accent-dark);
    background: rgba(232, 163, 61, 0.14);
    font-weight: 600;
}
.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}
.nav-search {
    display: flex;
    align-items: center;
    background: var(--bg-main);
    border-radius: 999px;
    padding: 5px 5px 5px 14px;
    border: 1px solid var(--border);
    transition: var(--transition);
}
.nav-search:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(232, 163, 61, 0.16);
}
.nav-search input {
    width: 160px;
    font-size: 14px;
    color: var(--text-main);
    background: transparent;
}
.nav-search input::placeholder {
    color: #98a2b3;
}
.nav-search button {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    cursor: pointer;
    transition: var(--transition);
    font-size: 13px;
}
.nav-search button:hover {
    background: var(--accent);
    color: var(--primary-dark);
}
.nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: var(--bg-main);
    color: var(--primary);
    font-size: 18px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
}
.nav-toggle:hover {
    background: rgba(232, 163, 61, 0.18);
    color: var(--accent-dark);
}

.page-banner {
    position: relative;
    padding: 92px 0 104px;
    background: linear-gradient(135deg, rgba(8, 29, 48, 0.88), rgba(15, 43, 70, 0.78)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
    color: #fff;
    text-align: center;
    overflow: hidden;
}
.page-banner::before {
    content: '';
    position: absolute;
    top: -40%;
    left: -10%;
    width: 420px;
    height: 420px;
    border-radius: 50%;
    background: rgba(232, 163, 61, 0.12);
    pointer-events: none;
}
.page-banner .container {
    position: relative;
    z-index: 2;
}
.breadcrumbs {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.78);
    margin-bottom: 28px;
}
.breadcrumbs a {
    color: rgba(255, 255, 255, 0.85);
}
.breadcrumbs a:hover {
    color: var(--accent);
}
.breadcrumbs .sep {
    color: rgba(255, 255, 255, 0.45);
}
.breadcrumbs .current {
    color: var(--accent);
}
.banner-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 999px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.92);
    margin-bottom: 20px;
    backdrop-filter: blur(6px);
}
.page-banner h1 {
    font-size: 42px;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 18px;
    letter-spacing: 1px;
}
.page-banner .lead {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.88);
    max-width: 680px;
    margin: 0 auto 34px;
    line-height: 1.8;
}
.banner-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.entry-card {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 32px 26px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    height: 100%;
}
.entry-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s ease;
}
.entry-card:hover::before {
    transform: scaleX(1);
}
.entry-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(232, 163, 61, 0.35);
}
.entry-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--accent);
    box-shadow: var(--shadow-sm);
}
.entry-card h3 {
    font-size: 19px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
    line-height: 1.4;
}
.entry-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.75;
}
.entry-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 16px;
    font-size: 14px;
    font-weight: 600;
    color: var(--accent-dark);
}
.entry-link i {
    font-size: 12px;
    transition: transform 0.25s ease;
}
.entry-link:hover i {
    transform: translateX(4px);
}

.guide-list {
    background: var(--bg-white);
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}
.guide-card {
    background: var(--bg-main);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}
.guide-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: rgba(15, 43, 70, 0.18);
}
.guide-cover {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: var(--primary);
}
.guide-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.guide-card:hover .guide-cover img {
    transform: scale(1.05);
}
.guide-tag {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(15, 43, 70, 0.85);
    color: #fff;
    padding: 4px 12px;
    font-size: 12px;
    border-radius: 999px;
    backdrop-filter: blur(4px);
    font-weight: 500;
}
.guide-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.guide-body h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.45;
    margin-bottom: 10px;
}
.guide-body h3 a:hover {
    color: var(--accent-dark);
}
.guide-body p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.75;
    flex: 1;
}
.guide-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    font-size: 13px;
    color: var(--text-muted);
}
.guide-meta i {
    margin-right: 4px;
    color: var(--accent);
}
.guide-readmore {
    color: var(--primary);
    font-weight: 600;
}
.guide-readmore:hover {
    color: var(--accent-dark);
}
.guide-readmore i {
    margin-left: 3px;
    font-size: 12px;
}

.flow-section {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    color: #fff;
}
.flow-section .section-title {
    color: #fff;
}
.flow-section .section-desc {
    color: rgba(255, 255, 255, 0.75);
}
.flow-section .section-tag {
    background: rgba(232, 163, 61, 0.2);
    color: var(--accent-light);
}
.flow-grid {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    margin-top: 12px;
}
.flow-item {
    flex: 1 1 220px;
    max-width: 260px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-md);
    padding: 30px 24px 28px;
    text-align: center;
    position: relative;
    transition: var(--transition);
    backdrop-filter: blur(4px);
}
.flow-item:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-6px);
    border-color: rgba(232, 163, 61, 0.4);
}
.flow-step {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--accent);
    color: var(--primary-dark);
    font-weight: 800;
    font-size: 18px;
    margin: 0 auto 18px;
    box-shadow: 0 0 0 6px rgba(232, 163, 61, 0.18);
}
.flow-item h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
    color: #fff;
}
.flow-item p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.73);
    line-height: 1.75;
}

.resource-card {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    height: 100%;
}
.resource-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
}
.resource-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
    border-color: rgba(232, 163, 61, 0.4);
}
.resource-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
}
.resource-card > p {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 22px;
    line-height: 1.75;
}
.resource-list {
    margin-bottom: 24px;
}
.resource-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 11px 0;
    border-bottom: 1px dashed var(--border);
    font-size: 14px;
    color: var(--text-main);
    line-height: 1.6;
}
.resource-list li:last-child {
    border-bottom: none;
}
.resource-list li i {
    color: var(--accent);
    width: 16px;
    margin-top: 3px;
    font-size: 13px;
}
.resource-card .btn {
    margin-top: 4px;
}

.faq-section {
    background: var(--bg-white);
    border-top: 1px solid var(--border-light);
}
.faq-wrap {
    max-width: 840px;
    margin: 0 auto;
}
.faq-item {
    background: var(--bg-main);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    overflow: hidden;
    transition: var(--transition);
}
.faq-item.active {
    border-color: var(--accent);
    box-shadow: 0 8px 24px rgba(232, 163, 61, 0.14);
}
.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 26px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: var(--primary);
    transition: var(--transition);
    user-select: none;
}
.faq-question:hover {
    color: var(--accent-dark);
}
.faq-question .faq-icon {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(15, 43, 70, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    transition: var(--transition);
    color: var(--primary);
}
.faq-item.active .faq-question {
    color: var(--accent-dark);
}
.faq-item.active .faq-icon {
    background: var(--accent);
    color: var(--primary-dark);
    transform: rotate(180deg);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}
.faq-item.active .faq-answer {
    max-height: 380px;
}
.faq-answer-inner {
    padding: 0 26px 26px;
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.85;
    border-top: 1px dashed var(--border);
    padding-top: 18px;
}
.faq-answer-inner p {
    margin-bottom: 0;
}

.cta-section {
    position: relative;
    padding: 76px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
    text-align: center;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    top: -60%;
    right: -15%;
    width: 480px;
    height: 480px;
    border-radius: 50%;
    background: rgba(232, 163, 61, 0.15);
    pointer-events: none;
}
.cta-section::after {
    content: '';
    position: absolute;
    bottom: -70%;
    left: -10%;
    width: 360px;
    height: 360px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    pointer-events: none;
}
.cta-section .container {
    position: relative;
    z-index: 2;
}
.cta-title {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 14px;
    letter-spacing: 0.5px;
}
.cta-desc {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.82);
    max-width: 560px;
    margin: 0 auto 30px;
    line-height: 1.8;
}
.cta-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.site-footer {
    background: var(--bg-dark);
    color: rgba(255, 255, 255, 0.75);
    padding: 60px 0 30px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 44px;
}
.footer-brand .brand {
    color: #fff;
    font-size: 20px;
    margin-bottom: 14px;
}
.footer-brand .brand-icon {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.18);
}
.footer-brand .brand-text {
    color: #fff;
}
.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.58);
    margin-bottom: 18px;
}
.footer-social {
    display: flex;
    gap: 10px;
}
.footer-social a {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.8);
    font-size: 15px;
    transition: var(--transition);
}
.footer-social a:hover {
    background: var(--accent);
    color: var(--primary-dark);
    transform: translateY(-2px);
}
.footer-col h4 {
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 18px;
    position: relative;
    padding-bottom: 10px;
}
.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 28px;
    height: 3px;
    border-radius: 2px;
    background: var(--accent);
}
.footer-col a {
    display: block;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.58);
    padding: 6px 0;
    transition: var(--transition);
}
.footer-col a:hover {
    color: var(--accent);
    padding-left: 8px;
}
.footer-col p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.58);
    margin-bottom: 8px;
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.42);
}

@media (max-width: 1024px) {
    .nav-search input {
        width: 120px;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .page-banner h1 {
        font-size: 34px;
    }
    .section {
        padding: 68px 0;
    }
}

@media (max-width: 768px) {
    .nav-search {
        display: none;
    }
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        align-items: stretch;
        padding: 14px 20px 20px;
        display: none;
        box-shadow: 0 18px 36px rgba(15, 43, 70, 0.14);
        border-top: 1px solid var(--border-light);
        border-radius: 0 0 16px 16px;
        gap: 6px;
    }
    .nav-links.mobile-open {
        display: flex;
    }
    .nav-link {
        padding: 12px 16px;
        border-radius: 10px;
    }
    .nav-toggle {
        display: inline-flex;
    }
    .page-banner {
        padding: 64px 0 72px;
    }
    .page-banner h1 {
        font-size: 28px;
    }
    .page-banner .lead {
        font-size: 16px;
    }
    .section-title {
        font-size: 26px;
    }
    .flow-grid {
        gap: 16px;
    }
    .flow-item {
        flex: 1 1 100%;
        max-width: 100%;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .cta-title {
        font-size: 26px;
    }
}

@media (max-width: 520px) {
    .top-strip-links {
        display: none;
    }
    .nav-inner {
        height: 64px;
    }
    .brand-text {
        font-size: 17px;
    }
    .nav-actions .btn-sm {
        display: none;
    }
    .page-banner {
        padding: 52px 0 58px;
    }
    .page-banner h1 {
        font-size: 23px;
        letter-spacing: 0.3px;
    }
    .banner-actions .btn {
        padding: 10px 20px;
        font-size: 14px;
    }
    .entry-card {
        padding: 24px 18px;
    }
    .guide-body {
        padding: 20px 18px;
    }
    .resource-card {
        padding: 28px 20px;
    }
    .faq-question {
        padding: 18px 18px;
        font-size: 15px;
    }
    .faq-answer-inner {
        padding: 0 18px 20px;
        padding-top: 15px;
        font-size: 14px;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    .section-tag {
        font-size: 12px;
    }
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0d2137;
            --primary-light: #173a5e;
            --primary-dark: #081627;
            --accent: #f0a500;
            --accent-light: #ffb82e;
            --accent-dark: #d18e00;
            --bg: #f4f7fa;
            --bg-white: #ffffff;
            --text: #1c2b3a;
            --text-weak: #64748b;
            --text-weak-light: #b8c9dd;
            --border: #e2e8f0;
            --radius: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(11, 31, 58, .06);
            --shadow-md: 0 8px 24px rgba(11, 31, 58, .10);
            --shadow-lg: 0 16px 40px rgba(11, 31, 58, .14);
            --transition: .25s ease;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            display: block;
        }
        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        button,
        input,
        select,
        textarea {
            font: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 10px;
            font-weight: 700;
            font-size: .92rem;
            padding: 11px 22px;
            border: 0;
            cursor: pointer;
            transition: var(--transition);
            line-height: 1.4;
            text-align: center;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-accent {
            background: var(--accent);
            color: #1a2332;
        }
        .btn-accent:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-outline-light {
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, .8);
            color: #fff;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .12);
            border-color: #fff;
        }
        .btn-sm {
            padding: 7px 15px;
            font-size: .85rem;
            border-radius: 8px;
        }
        .btn:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(240, 165, 0, .5);
            outline-offset: 2px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .top-strip {
            background: var(--primary-dark);
            color: var(--text-weak-light);
            font-size: .82rem;
        }
        .top-strip-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 38px;
            gap: 16px;
        }
        .top-strip-text {
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .top-strip-text i {
            color: var(--accent);
        }
        .top-strip-links {
            display: flex;
            gap: 4px;
            flex-shrink: 0;
        }
        .top-strip-links a {
            color: var(--text-weak-light);
            padding: 4px 10px;
            border-radius: 6px;
            transition: var(--transition);
        }
        .top-strip-links a:hover {
            color: #fff;
            background: rgba(255, 255, 255, .08);
        }
        .main-nav {
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            position: relative;
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(11, 31, 58, .2);
        }
        .brand-text {
            font-size: 1.22rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: .3px;
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }
        .nav-link {
            padding: 9px 16px;
            border-radius: 9px;
            font-weight: 600;
            color: var(--text);
            font-size: .92rem;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-link:hover {
            background: #eef2f7;
            color: var(--primary);
        }
        .nav-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(11, 31, 58, .18);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: #f1f4f8;
            border-radius: 9px;
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .nav-search:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(240, 165, 0, .15);
        }
        .nav-search input {
            border: 0;
            background: transparent;
            padding: 8px 12px;
            width: 150px;
            font-size: .85rem;
            outline: none;
        }
        .nav-search button {
            background: transparent;
            border: 0;
            padding: 0 12px;
            color: var(--text-weak);
            font-size: .9rem;
            line-height: 1;
        }
        .nav-search button:hover {
            color: var(--primary);
        }
        .nav-toggle {
            display: none;
            background: var(--primary);
            color: #fff;
            border: 0;
            border-radius: 8px;
            width: 42px;
            height: 42px;
            font-size: 18px;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: var(--primary-light);
        }

        /* ===== 页面 Banner ===== */
        .page-banner {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 90px 0 80px;
        }
        .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(8, 22, 39, .92) 0%, rgba(13, 33, 55, .78) 55%, rgba(13, 33, 55, .55) 100%);
        }
        .banner-content {
            position: relative;
            z-index: 2;
            color: #fff;
            max-width: 780px;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: .85rem;
            margin-bottom: 20px;
            color: var(--text-weak-light);
        }
        .breadcrumb a {
            color: var(--text-weak-light);
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .divider {
            opacity: .6;
        }
        .breadcrumb .current {
            color: #fff;
            font-weight: 600;
        }
        .page-banner h1 {
            font-size: 2.7rem;
            line-height: 1.2;
            margin: 0 0 18px;
            font-weight: 800;
            letter-spacing: 1px;
        }
        .page-banner p {
            font-size: 1.05rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, .88);
            max-width: 640px;
            margin: 0 0 30px;
        }
        .banner-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: #fff;
        }
        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 50px;
        }
        .section-head .section-tag {
            display: inline-block;
            padding: 5px 14px;
            background: rgba(240, 165, 0, .12);
            color: var(--accent-dark);
            border-radius: 20px;
            font-size: .82rem;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: .5px;
        }
        .section-head h2 {
            font-size: 2rem;
            margin: 0 0 12px;
            color: var(--primary);
            font-weight: 800;
            letter-spacing: .5px;
        }
        .section-head p {
            color: var(--text-weak);
            font-size: 1rem;
            line-height: 1.8;
            margin: 0;
        }

        /* ===== 登录方式卡片 ===== */
        .methods-grid {
            margin-top: 10px;
        }
        .method-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 30px 26px;
            height: 100%;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            position: relative;
            overflow: hidden;
        }
        .method-card::after {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            width: 4px;
            height: 100%;
            background: var(--accent);
            transform: scaleY(0);
            transform-origin: bottom;
            transition: var(--transition);
        }
        .method-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(240, 165, 0, .35);
        }
        .method-card:hover::after {
            transform: scaleY(1);
        }
        .method-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(240, 165, 0, .14), rgba(240, 165, 0, .06));
            color: var(--accent-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 20px;
        }
        .method-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin: 0 0 10px;
            color: var(--text);
        }
        .method-card p {
            color: var(--text-weak);
            font-size: .89rem;
            line-height: 1.7;
            margin: 0 0 16px;
        }
        .method-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag {
            display: inline-block;
            padding: 4px 12px;
            background: #f1f4f8;
            color: var(--text-weak);
            border-radius: 20px;
            font-size: .78rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .tag-hot {
            background: rgba(240, 165, 0, .14);
            color: var(--accent-dark);
        }
        .tag-safe {
            background: rgba(23, 58, 94, .1);
            color: var(--primary);
        }
        .tag-new {
            background: rgba(34, 197, 94, .12);
            color: #15803d;
        }

        /* ===== 图文详情 ===== */
        .method-detail-block {
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            margin-bottom: 40px;
        }
        .method-detail-block:last-child {
            margin-bottom: 0;
        }
        .detail-media {
            position: relative;
            min-height: 320px;
            overflow: hidden;
        }
        .detail-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .method-detail-block:hover .detail-media img {
            transform: scale(1.03);
        }
        .detail-body {
            padding: 42px;
        }
        .detail-body .detail-tag {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(240, 165, 0, .12);
            color: var(--accent-dark);
            border-radius: 20px;
            font-size: .8rem;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .detail-body h3 {
            font-size: 1.65rem;
            font-weight: 800;
            color: var(--primary);
            margin: 0 0 14px;
            line-height: 1.35;
        }
        .detail-body p {
            color: var(--text-weak);
            font-size: .96rem;
            line-height: 1.8;
            margin: 0 0 20px;
        }
        .detail-steps {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .detail-steps li {
            display: flex;
            gap: 12px;
            padding: 9px 0;
            font-size: .92rem;
            color: var(--text);
            align-items: flex-start;
            border-bottom: 1px dashed var(--border);
        }
        .detail-steps li:last-child {
            border-bottom: 0;
        }
        .detail-steps .step-num {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: .8rem;
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 3px;
        }

        /* ===== 对比表格 ===== */
        .compare-wrap {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            overflow-x: auto;
        }
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 760px;
            margin: 0;
        }
        .compare-table thead th {
            background: var(--primary);
            color: #fff;
            padding: 16px 18px;
            font-weight: 700;
            font-size: .92rem;
            text-align: left;
            white-space: nowrap;
        }
        .compare-table tbody td {
            padding: 15px 18px;
            border-bottom: 1px solid var(--border);
            font-size: .9rem;
            color: var(--text);
            vertical-align: middle;
        }
        .compare-table tbody tr:last-child td {
            border-bottom: 0;
        }
        .compare-table tbody tr:nth-child(even) {
            background: #f8fafc;
        }
        .compare-table tbody tr:hover {
            background: #eef4ff;
        }
        .rate-stars {
            color: var(--accent);
            letter-spacing: 2px;
            white-space: nowrap;
        }
        .rate-empty {
            color: #cbd5e1;
        }

        /* ===== 文章卡片 ===== */
        .article-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .article-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-5px);
            border-color: rgba(11, 31, 58, .16);
        }
        .article-cover {
            position: relative;
            height: 190px;
            overflow: hidden;
        }
        .article-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .article-card:hover .article-cover img {
            transform: scale(1.05);
        }
        .article-tag {
            position: absolute;
            left: 14px;
            top: 14px;
            background: rgba(13, 33, 55, .88);
            color: #fff;
            font-size: .78rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            backdrop-filter: blur(4px);
            z-index: 2;
        }
        .article-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .article-body h3 {
            font-size: 1.04rem;
            font-weight: 700;
            line-height: 1.5;
            margin: 0 0 10px;
            color: var(--text);
        }
        .article-body h3 a:hover {
            color: var(--primary);
        }
        .article-body p {
            font-size: .88rem;
            color: var(--text-weak);
            line-height: 1.7;
            margin: 0 0 16px;
            flex: 1;
        }
        .article-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            border-top: 1px solid var(--border);
            padding-top: 14px;
            font-size: .82rem;
            color: var(--text-weak);
        }
        .article-meta a {
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta a:hover {
            color: var(--accent-dark);
            gap: 10px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: #fff;
            padding: 80px 0;
        }
        .faq-accordion {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-accordion .accordion-item {
            border-bottom: 1px solid var(--border);
            background: #fff;
            transition: var(--transition);
        }
        .faq-accordion .accordion-item:last-child {
            border-bottom: 0;
        }
        .faq-accordion .accordion-item.is-active {
            background: #fbfcfe;
        }
        .faq-accordion .accordion-title {
            display: flex;
            align-items: center;
            padding: 20px 26px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text);
            transition: var(--transition);
            background: transparent;
            border: 0;
            line-height: 1.5;
        }
        .faq-accordion .accordion-title:hover {
            background: #f1f5f9;
        }
        .faq-accordion .accordion-title::before {
            content: '+';
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--accent-dark);
            margin-right: 14px;
            transition: var(--transition);
            display: inline-block;
        }
        .faq-accordion .accordion-item.is-active .accordion-title::before {
            content: '−';
            color: var(--primary);
        }
        .faq-accordion .accordion-content {
            padding: 0 28px 24px 52px;
            color: var(--text-weak);
            line-height: 1.9;
            font-size: .92rem;
        }
        .faq-accordion .accordion-content p {
            margin: 0 0 8px;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 80px 0;
        }
        .cta-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(8, 22, 39, .94), rgba(13, 33, 55, .82));
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            color: #fff;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: 2rem;
            font-weight: 800;
            margin: 0 0 16px;
            letter-spacing: .5px;
        }
        .cta-inner p {
            font-size: 1rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, .86);
            margin: 0 0 30px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            color: #b8c9dd;
            font-size: .9rem;
            padding: 70px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 50px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .footer-brand .brand {
            margin-bottom: 16px;
        }
        .footer-brand .brand-icon {
            background: var(--accent);
            color: var(--primary-dark);
        }
        .footer-brand .brand-text {
            color: #fff;
        }
        .footer-brand p {
            font-size: .88rem;
            line-height: 1.8;
            margin: 0 0 20px;
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, .12);
            background: rgba(255, 255, 255, .04);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #b8c9dd;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--accent);
            transform: translateY(-3px);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin: 0 0 18px;
            letter-spacing: .5px;
        }
        .footer-col a {
            display: block;
            padding: 5px 0;
            color: #b8c9dd;
            font-size: .88rem;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 6px;
        }
        .footer-col p {
            margin: 0 0 8px;
            font-size: .88rem;
            line-height: 1.7;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            padding: 22px 0;
            font-size: .82rem;
            color: rgba(184, 201, 221, .7);
        }
        .footer-bottom p {
            margin: 0;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1.4fr 1fr 1fr;
                gap: 30px;
            }
            .footer-col:last-child {
                grid-column: span 3;
            }
            .brand-text {
                font-size: 1.05rem;
            }
            .nav-search input {
                width: 110px;
            }
        }

        @media (max-width: 900px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 14px 20px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                gap: 6px;
                z-index: 99;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-link {
                padding: 12px 16px;
                border-radius: 10px;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .nav-search {
                display: none;
            }
            .nav-inner {
                height: 64px;
            }
            .page-banner {
                padding: 70px 0 60px;
            }
            .page-banner h1 {
                font-size: 2.1rem;
            }
            .section {
                padding: 60px 0;
            }
            .faq-section {
                padding: 60px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-col:last-child {
                grid-column: auto;
            }
        }

        @media (max-width: 640px) {
            .container {
                padding: 0 18px;
            }
            .top-strip-text {
                font-size: .76rem;
            }
            .top-strip-links {
                display: none;
            }
            .brand-text {
                font-size: .98rem;
            }
            .brand-icon {
                width: 36px;
                height: 36px;
                font-size: 16px;
            }
            .nav-actions .btn-sm {
                display: none;
            }
            .page-banner {
                padding: 55px 0 50px;
            }
            .page-banner h1 {
                font-size: 1.75rem;
            }
            .page-banner p {
                font-size: .94rem;
            }
            .banner-actions .btn {
                width: 100%;
            }
            .section {
                padding: 50px 0;
            }
            .section-head {
                margin-bottom: 36px;
            }
            .section-head h2 {
                font-size: 1.55rem;
            }
            .detail-body {
                padding: 26px 22px;
            }
            .detail-body h3 {
                font-size: 1.35rem;
            }
            .detail-media {
                min-height: 220px;
            }
            .compare-table thead th {
                padding: 12px 14px;
            }
            .compare-table tbody td {
                padding: 12px 14px;
            }
            .faq-accordion .accordion-title {
                padding: 16px 18px;
                font-size: .92rem;
            }
            .faq-accordion .accordion-content {
                padding: 0 18px 18px 44px;
            }
            .cta-inner h2 {
                font-size: 1.55rem;
            }
            .cta-section {
                padding: 60px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
                padding-bottom: 36px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                padding: 18px 0;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #1a56db;
            --primary-dark: #1e40af;
            --primary-light: #dbeafe;
            --accent: #0f766e;
            --accent-light: #ccfbf1;
            --dark: #0f172a;
            --text: #1e293b;
            --muted: #64748b;
            --bg: #f8fafc;
            --white: #ffffff;
            --border: #e2e8f0;
            --radius: 14px;
            --radius-sm: 8px;
            --shadow: 0 10px 30px rgba(15, 23, 42, .06);
            --shadow-hover: 0 18px 40px rgba(15, 23, 42, .12);
            --transition: all .25s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            font-size: 15px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--white);
            box-shadow: 0 2px 16px rgba(15, 23, 42, .07);
        }
        .top-strip {
            background: var(--dark);
            color: #cbd5e1;
            font-size: 13px;
            padding: 8px 0;
        }
        .top-strip-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .top-strip-text {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 500;
        }
        .top-strip-links a {
            color: #cbd5e1;
            margin-left: 16px;
            transition: color .2s;
        }
        .top-strip-links a:hover {
            color: #fff;
        }
        .main-nav {
            border-bottom: 1px solid var(--border);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 20px;
            position: relative;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 20px;
            color: var(--dark);
            white-space: nowrap;
        }
        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            border-radius: 10px;
            font-size: 16px;
            box-shadow: 0 4px 12px rgba(26, 86, 219, .25);
        }
        .brand-text {
            font-size: 20px;
            letter-spacing: .3px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 24px;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            padding: 26px 2px;
            border-bottom: 3px solid transparent;
            transition: color .2s, border-color .2s;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
            font-weight: 600;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 0 4px 0 14px;
            height: 38px;
            transition: border-color .2s, box-shadow .2s;
        }
        .nav-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(26, 86, 219, .1);
        }
        .nav-search input {
            border: none;
            background: transparent;
            font-size: 13px;
            width: 130px;
            color: var(--text);
        }
        .nav-search input::placeholder {
            color: #94a3b8;
        }
        .nav-search button {
            border: none;
            background: var(--primary);
            color: #fff;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            cursor: pointer;
            font-size: 13px;
            transition: background .2s;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .nav-search button:hover {
            background: var(--primary-dark);
        }
        .nav-toggle {
            display: none;
            border: 1px solid var(--border);
            background: var(--white);
            width: 40px;
            height: 40px;
            border-radius: 8px;
            font-size: 18px;
            color: var(--dark);
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 0 22px;
            height: 42px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 600;
            text-decoration: none;
            border: 1px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            line-height: 1;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), #2563eb);
            color: #fff;
            box-shadow: 0 4px 14px rgba(26, 86, 219, .28);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(26, 86, 219, .35);
        }
        .btn-sm {
            height: 36px;
            padding: 0 16px;
            font-size: 13px;
            border-radius: 8px;
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(15, 118, 110, .22);
        }
        .btn-accent:hover {
            background: #0d5e58;
            transform: translateY(-2px);
        }
        .btn-light {
            background: #fff;
            color: var(--primary);
        }
        .btn-light:hover {
            background: #f1f5f9;
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(0, 0, 0, .12);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, .65);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .14);
            border-color: #fff;
            transform: translateY(-2px);
        }
        .btn-block {
            width: 100%;
        }
        .page-banner {
            position: relative;
            padding: 84px 0 76px;
            background: url('/assets/images/backpic/back-3.png') center / cover no-repeat;
            color: #fff;
            overflow: hidden;
        }
        .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, .9), rgba(26, 86, 219, .76));
        }
        .banner-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 860px;
            margin: 0 auto;
        }
        .breadcrumb {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, .75);
            margin-bottom: 24px;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, .85);
            transition: color .2s;
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb-sep {
            font-size: 11px;
            opacity: .6;
        }
        .page-banner h1 {
            font-size: 42px;
            font-weight: 800;
            margin: 0 0 16px;
            line-height: 1.25;
            letter-spacing: .5px;
        }
        .banner-lead {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .85);
            max-width: 680px;
            margin: 0 auto 40px;
        }
        .banner-stats {
            display: flex;
            justify-content: center;
            gap: 36px;
            flex-wrap: wrap;
        }
        .stat-item {
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .18);
            backdrop-filter: blur(6px);
            border-radius: var(--radius);
            padding: 20px 30px;
            min-width: 140px;
            text-align: center;
            transition: var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, .16);
            transform: translateY(-3px);
        }
        .stat-item strong {
            display: block;
            font-size: 28px;
            font-weight: 800;
            line-height: 1.3;
        }
        .stat-item span {
            display: block;
            font-size: 13px;
            color: rgba(255, 255, 255, .75);
            margin-top: 4px;
        }
        .section-pad {
            padding: 76px 0;
        }
        .section-head {
            margin-bottom: 44px;
            max-width: 760px;
        }
        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 14px;
        }
        .section-tag::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
        }
        .section-head h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--dark);
            line-height: 1.35;
            margin: 0 0 12px;
        }
        .section-head p {
            font-size: 15px;
            color: var(--muted);
            line-height: 1.8;
            margin: 0;
        }
        .guide-section {
            background: var(--white);
            padding: 76px 0;
        }
        .guide-section .section-head {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            gap: 30px;
            max-width: 100%;
        }
        .guide-section .section-head p {
            max-width: 500px;
        }
        .guide-card {
            margin-bottom: 30px;
        }
        .guide-card-inner {
            display: flex;
            flex-direction: column;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            height: 100%;
            transition: var(--transition);
        }
        .guide-card-inner:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .guide-card-inner img {
            width: 100%;
            height: 220px;
            object-fit: cover;
        }
        .guide-card-body {
            padding: 28px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .guide-card-body h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--dark);
            margin: 0 0 10px;
        }
        .guide-card-body p {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.8;
            margin: 0 0 18px;
        }
        .guide-card-body ul {
            list-style: none;
            margin: 0 0 22px;
            padding: 0;
        }
        .guide-card-body li {
            padding: 7px 0 7px 28px;
            position: relative;
            color: var(--text);
            font-size: 14px;
            line-height: 1.7;
        }
        .guide-card-body li::before {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 7px;
            color: var(--accent);
            font-size: 13px;
            width: 18px;
            height: 18px;
            background: var(--accent-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .guide-card-body .btn {
            margin-top: auto;
            align-self: flex-start;
        }
        .sidebar .side-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 26px;
            margin-bottom: 24px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .sidebar .side-card:hover {
            box-shadow: var(--shadow-hover);
        }
        .side-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--dark);
            margin: 0 0 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .side-card h3 i {
            color: var(--primary);
        }
        .side-card p {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.8;
            margin: 0 0 18px;
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-cloud a {
            display: inline-flex;
            align-items: center;
            padding: 7px 14px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            font-size: 13px;
            color: var(--text);
            transition: var(--transition);
        }
        .tag-cloud a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .side-contact {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
            border-color: transparent !important;
            color: #fff;
        }
        .side-contact h3 {
            color: #fff;
        }
        .side-contact p {
            color: rgba(255, 255, 255, .85);
        }
        .service-section {
            background: var(--bg);
            padding: 76px 0;
        }
        .service-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 30px 26px;
            height: 100%;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .service-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-5px);
            border-color: rgba(26, 86, 219, .28);
        }
        .service-icon {
            width: 54px;
            height: 54px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--primary-light), #eff6ff);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
            transition: var(--transition);
        }
        .service-card:hover .service-icon {
            background: linear-gradient(135deg, var(--primary), #2563eb);
            color: #fff;
            transform: scale(1.05);
        }
        .service-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin: 0 0 12px;
        }
        .service-card p {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.8;
            margin: 0 0 18px;
            flex: 1;
        }
        .service-card a {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap .2s;
        }
        .service-card a:hover {
            gap: 10px;
        }
        .flow-section {
            background: var(--dark);
            padding: 76px 0;
            position: relative;
            overflow: hidden;
        }
        .flow-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -120px;
            width: 340px;
            height: 340px;
            border-radius: 50%;
            background: rgba(26, 86, 219, .18);
        }
        .flow-section .section-tag {
            background: rgba(26, 86, 219, .2);
            color: #93c5fd;
        }
        .flow-section .section-head h2 {
            color: #fff;
        }
        .flow-section .section-head p {
            color: #94a3b8;
        }
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 26px;
            position: relative;
            z-index: 2;
            margin-top: 10px;
        }
        .flow-item {
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: var(--radius);
            padding: 34px 28px;
            text-align: center;
            color: #fff;
            transition: var(--transition);
            position: relative;
        }
        .flow-item:hover {
            background: rgba(255, 255, 255, .09);
            border-color: rgba(26, 86, 219, .55);
            transform: translateY(-4px);
        }
        .flow-num {
            position: absolute;
            top: 16px;
            left: 20px;
            font-size: 34px;
            font-weight: 900;
            color: rgba(255, 255, 255, .09);
            line-height: 1;
        }
        .flow-item i {
            font-size: 30px;
            color: #60a5fa;
            margin-bottom: 18px;
            display: inline-block;
        }
        .flow-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 12px;
            color: #fff;
        }
        .flow-item p {
            font-size: 13px;
            color: #94a3b8;
            line-height: 1.8;
            margin: 0;
        }
        .news-section {
            background: var(--white);
            padding: 76px 0;
        }
        .news-list {
            max-width: 980px;
            margin: 0 auto;
        }
        .news-item {
            display: flex;
            gap: 24px;
            padding: 24px;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 20px;
            transition: var(--transition);
            background: var(--white);
        }
        .news-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: rgba(26, 86, 219, .22);
        }
        .news-thumb {
            flex-shrink: 0;
            width: 180px;
            height: 130px;
            border-radius: 10px;
            overflow: hidden;
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s;
        }
        .news-item:hover .news-thumb img {
            transform: scale(1.05);
        }
        .news-body {
            flex: 1;
            min-width: 0;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 8px;
        }
        .news-tag {
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
        }
        .news-date {
            font-size: 13px;
            color: var(--muted);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .news-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.5;
            margin: 0 0 8px;
        }
        .news-body h3 a {
            transition: color .2s;
        }
        .news-body h3 a:hover {
            color: var(--primary);
        }
        .news-body p {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.75;
            margin: 0 0 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap .2s;
        }
        .news-more:hover {
            gap: 10px;
        }
        .faq-section {
            background: var(--bg);
            padding: 76px 0;
        }
        .accordion {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            margin: 0;
            list-style: none;
        }
        .accordion-item {
            border-bottom: 1px solid var(--border);
            margin: 0;
        }
        .accordion-item:last-child {
            border-bottom: none;
        }
        .accordion-title {
            padding: 20px 28px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            background: var(--white);
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: background .2s, color .2s;
            position: relative;
            line-height: 1.6;
        }
        .accordion-title:hover {
            background: #f1f5f9;
            color: var(--primary);
        }
        .accordion-title::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 13px;
            color: var(--muted);
            transition: transform .3s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--bg);
            flex-shrink: 0;
            margin-left: 16px;
        }
        .accordion-item.is-active > .accordion-title {
            color: var(--primary);
            background: #f8fafc;
        }
        .accordion-item.is-active > .accordion-title::after {
            transform: rotate(180deg);
            background: var(--primary);
            color: #fff;
        }
        .accordion-content {
            padding: 0 28px 24px;
            color: var(--muted);
            line-height: 1.85;
            font-size: 14px;
            background: #f8fafc;
            display: none;
        }
        .accordion-item.is-active .accordion-content {
            display: block;
        }
        .accordion-content p {
            margin: 0;
            padding-top: 16px;
            border-top: 1px dashed var(--border);
        }
        .cta-section {
            padding: 70px 0;
            background: url('/assets/images/backpic/back-1.png') center / cover fixed no-repeat;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(15, 23, 42, .92), rgba(26, 86, 219, .78));
        }
        .cta-box {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .16);
            border-radius: 18px;
            padding: 44px 48px;
            backdrop-filter: blur(8px);
        }
        .cta-content h2 {
            color: #fff;
            font-size: 26px;
            font-weight: 800;
            margin: 0 0 8px;
        }
        .cta-content p {
            color: rgba(255, 255, 255, .8);
            margin: 0;
            font-size: 15px;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .site-footer {
            background: var(--dark);
            color: #94a3b8;
            padding: 64px 0 0;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 42px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .footer-brand .brand {
            color: #fff;
            font-size: 22px;
            margin-bottom: 14px;
        }
        .footer-brand p {
            line-height: 1.9;
            margin: 14px 0 20px;
            max-width: 320px;
            color: #94a3b8;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .08);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #e2e8f0;
            margin-right: 10px;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            margin: 0 0 18px;
            position: relative;
            padding-bottom: 10px;
            font-weight: 700;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .footer-col a {
            color: #94a3b8;
            display: block;
            margin-bottom: 12px;
            transition: color .2s, padding-left .2s;
        }
        .footer-col a:hover {
            color: #fff;
            padding-left: 6px;
        }
        .footer-col p {
            color: #94a3b8;
            margin-bottom: 10px;
            line-height: 1.8;
        }
        .footer-bottom {
            padding: 18px 0;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: #64748b;
        }
        @media (max-width: 1024px) {
            .nav-links {
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: var(--white);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 8px 24px 16px;
                box-shadow: 0 20px 30px rgba(15, 23, 42, .1);
                display: none;
                border-top: 1px solid var(--border);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-link {
                width: 100%;
                padding: 12px 0;
                border-bottom: 1px solid var(--border);
                border-left: 3px solid transparent;
            }
            .nav-link.active {
                border-bottom-color: var(--border);
                border-left-color: var(--primary);
                background: var(--bg);
                padding-left: 10px;
            }
            .nav-link:hover {
                background: var(--bg);
            }
            .nav-toggle {
                display: inline-flex;
            }
            .nav-search {
                display: none;
            }
            .flow-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cta-box {
                padding: 34px 28px;
            }
        }
        @media (max-width: 768px) {
            .page-banner {
                padding: 60px 0 56px;
            }
            .page-banner h1 {
                font-size: 32px;
            }
            .banner-lead {
                font-size: 15px;
            }
            .banner-stats {
                gap: 16px;
            }
            .stat-item {
                min-width: 120px;
                padding: 16px 20px;
            }
            .stat-item strong {
                font-size: 22px;
            }
            .section-head h2 {
                font-size: 25px;
            }
            .guide-section .section-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .news-item {
                flex-direction: column;
            }
            .news-thumb {
                width: 100%;
                height: 200px;
            }
            .sidebar {
                margin-top: 10px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-box {
                flex-direction: column;
                text-align: center;
            }
            .cta-actions {
                justify-content: center;
            }
            .top-strip-links {
                display: none;
            }
            .top-strip-inner {
                justify-content: center;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .brand-text {
                font-size: 17px;
            }
            .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 14px;
            }
            .nav-actions .btn {
                display: none;
            }
            .page-banner {
                padding: 46px 0 44px;
            }
            .page-banner h1 {
                font-size: 27px;
            }
            .banner-stats {
                flex-direction: column;
                align-items: stretch;
            }
            .stat-item {
                min-width: 0;
            }
            .flow-grid {
                grid-template-columns: 1fr;
            }
            .service-card {
                padding: 24px 20px;
            }
            .guide-card-body {
                padding: 22px 20px;
            }
            .cta-actions .btn {
                width: 100%;
            }
            .footer-social a {
                margin-bottom: 10px;
            }
        }