/* roulang page: index */
:root {
            --primary: #0f2a43;
            --primary-2: #1b3a5c;
            --accent: #d4a853;
            --accent-2: #e8c87a;
            --dark: #0a1a2a;
            --bg: #f5f7fa;
            --text: #1c2b39;
            --muted: #5a6b7a;
            --border: #e2e8ee;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 6px 24px rgba(15, 42, 67, .07);
            --shadow-lg: 0 14px 44px rgba(15, 42, 67, .13);
            --transition: all .3s ease;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            color: var(--text);
            background: var(--bg);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            display: block;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 20px;
        }
        /* Header */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 14px rgba(15, 42, 67, .04);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 74px;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            white-space: nowrap;
        }
        .logo i {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-links a {
            padding: 9px 18px;
            border-radius: 30px;
            font-weight: 500;
            color: var(--text);
            font-size: 15px;
        }
        .nav-links a:hover {
            background: var(--bg);
            color: var(--primary);
        }
        .nav-links a.active {
            background: var(--primary);
            color: #fff;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-box {
            position: relative;
        }
        .search-box input {
            width: 200px;
            padding: 9px 16px 9px 38px;
            border: 1px solid var(--border);
            border-radius: 30px;
            background: var(--bg);
            font-size: 14px;
            outline: none;
            transition: var(--transition);
        }
        .search-box input:focus {
            border-color: var(--accent);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(212, 168, 83, .12);
        }
        .search-box i {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--muted);
            font-size: 14px;
            pointer-events: none;
        }
        .btn-solid {
            background: var(--primary);
            color: #fff !important;
            border: none;
            padding: 11px 26px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
            cursor: pointer;
        }
        .btn-solid:hover {
            background: var(--primary-2);
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(15, 42, 67, .22);
            color: #fff !important;
        }
        .btn-outline {
            border: 2px solid rgba(255, 255, 255, .85);
            color: #fff;
            padding: 10px 26px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
            background: transparent;
            cursor: pointer;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, .14);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--accent);
            color: var(--primary) !important;
            border: none;
            padding: 11px 26px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
            cursor: pointer;
        }
        .btn-accent:hover {
            background: var(--accent-2);
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(212, 168, 83, .3);
        }
        /* Hero */
        .hero {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: var(--dark);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(10, 26, 42, .92) 30%, rgba(10, 26, 42, .55) 75%, rgba(10, 26, 42, .3));
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: 80px 0;
        }
        .hero-tag {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 30px;
            background: rgba(212, 168, 83, .15);
            border: 1px solid rgba(212, 168, 83, .4);
            color: var(--accent-2);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 20px;
        }
        .hero h1 {
            font-size: 52px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: 2px;
        }
        .hero-desc {
            font-size: 18px;
            color: rgba(255, 255, 255, .85);
            max-width: 560px;
            margin-bottom: 34px;
            line-height: 1.8;
        }
        .hero-btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .hero-stats-wrap {
            position: relative;
            z-index: 2;
            border-top: 1px solid rgba(255, 255, 255, .12);
        }
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            padding: 30px 0;
        }
        .hs-item {
            text-align: center;
            padding: 16px 10px;
            border-radius: var(--radius);
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .1);
        }
        .hs-item span {
            font-size: 30px;
            font-weight: 800;
            color: var(--accent-2);
            display: block;
            line-height: 1.2;
        }
        .hs-item p {
            color: rgba(255, 255, 255, .75);
            font-size: 14px;
            margin-top: 4px;
        }
        /* Section common */
        .section {
            padding: 88px 0;
        }
        .section-alt {
            background: #fff;
        }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 52px;
        }
        .section-head .tag {
            display: inline-block;
            padding: 5px 16px;
            border-radius: 30px;
            background: rgba(212, 168, 83, .12);
            color: #9a7420;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }
        .section-head h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .section-head p {
            color: var(--muted);
            font-size: 16px;
        }
        /* Feature cards */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 38px 30px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(212, 168, 83, .4);
        }
        .feature-icon {
            width: 68px;
            height: 68px;
            border-radius: 20px;
            background: linear-gradient(135deg, var(--primary), var(--primary-2));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 22px;
            font-size: 26px;
            color: var(--accent-2);
        }
        .feature-card h3 {
            font-size: 20px;
            color: var(--primary);
            margin-bottom: 10px;
            font-weight: 700;
        }
        .feature-card p {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.7;
        }
        /* Category entry */
        .category-entry {
            background: #fff;
        }
        .cat-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            background: var(--bg);
            border-radius: 24px;
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
        }
        .cat-card-img {
            min-height: 300px;
            background: url('/assets/images/coverpic/cover-1.png') center/cover no-repeat;
        }
        .cat-card-body {
            padding: 48px 40px;
        }
        .cat-card-body .tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 30px;
            background: rgba(212, 168, 83, .14);
            color: #9a7420;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .cat-card-body h3 {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 14px;
        }
        .cat-card-body p {
            color: var(--muted);
            margin-bottom: 20px;
            line-height: 1.8;
        }
        .link-more {
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .link-more:hover {
            color: var(--accent);
            gap: 10px;
        }
        /* News */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 26px;
        }
        .news-card {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .news-img {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .news-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(10, 26, 42, .35));
        }
        .news-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
            background: var(--accent);
            color: var(--primary);
            font-size: 12px;
            font-weight: 700;
            padding: 3px 12px;
            border-radius: 20px;
        }
        .news-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.5;
            margin-bottom: 10px;
        }
        .news-body h3 a:hover {
            color: var(--accent);
        }
        .news-body p {
            font-size: 14px;
            color: var(--muted);
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--muted);
        }
        /* Process */
        .process-section {
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }
        .process-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: .15;
        }
        .process-section .section-head h2 {
            color: #fff;
        }
        .process-section .section-head p {
            color: rgba(255, 255, 255, .7);
        }
        .process-grid {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .process-item {
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            position: relative;
            transition: var(--transition);
            backdrop-filter: blur(6px);
        }
        .process-item:hover {
            background: rgba(255, 255, 255, .14);
            transform: translateY(-4px);
        }
        .process-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary);
            font-weight: 800;
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
        }
        .process-item h4 {
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .process-item p {
            color: rgba(255, 255, 255, .7);
            font-size: 14px;
        }
        /* Data panel */
        .data-section {
            background: var(--dark);
            position: relative;
            overflow: hidden;
        }
        .data-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: .2;
        }
        .data-grid {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 26px;
        }
        .data-item {
            text-align: center;
            padding: 40px 20px;
            border-radius: var(--radius);
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .08);
        }
        .data-item span {
            font-size: 40px;
            font-weight: 800;
            color: var(--accent);
            display: block;
            line-height: 1.3;
        }
        .data-item p {
            color: rgba(255, 255, 255, .7);
            margin-top: 8px;
            font-size: 15px;
        }
        /* FAQ */
        .faq-wrap {
            max-width: 780px;
            margin: 0 auto;
        }
        .accordion-item {
            border: 1px solid var(--border) !important;
            border-radius: var(--radius-sm) !important;
            margin-bottom: 16px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(15, 42, 67, .04);
        }
        .accordion-button {
            font-weight: 600;
            color: var(--primary);
            padding: 20px 24px;
            font-size: 16px;
            background: #fff;
        }
        .accordion-button:not(.collapsed) {
            background: rgba(212, 168, 83, .08);
            color: var(--primary);
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(212, 168, 83, .15);
        }
        .accordion-body {
            color: var(--muted);
            padding: 0 24px 20px;
            font-size: 15px;
            line-height: 1.8;
        }
        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 60%, #254e70 100%);
            padding: 76px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: .12;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
        }
        .cta-inner h2 {
            color: #fff;
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .cta-inner p {
            color: rgba(255, 255, 255, .8);
            max-width: 560px;
            margin: 0 auto 30px;
            font-size: 17px;
        }
        .cta-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        /* Footer */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, .7);
            padding: 60px 0 30px;
            font-size: 14px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand p {
            max-width: 360px;
            line-height: 1.8;
            font-size: 14px;
        }
        .footer-col h5 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 8px;
        }
        .footer-col h5::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, .6);
            padding: 6px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 6px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding-top: 24px;
            text-align: center;
            color: rgba(255, 255, 255, .4);
            font-size: 13px;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, .5);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        /* Article page */
        .article-hero {
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 90px 0 60px;
            position: relative;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(10, 26, 42, .9), rgba(10, 26, 42, .6));
        }
        .article-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .article-hero h1 {
            color: #fff;
            font-size: 36px;
            font-weight: 800;
            max-width: 800px;
            margin: 0 auto 16px;
            line-height: 1.4;
        }
        .article-meta {
            display: flex;
            justify-content: center;
            gap: 20px;
            color: rgba(255, 255, 255, .8);
            font-size: 14px;
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-wrap {
            max-width: 860px;
            margin: 0 auto;
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 48px;
        }
        .article-content {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text);
        }
        .article-content p {
            margin-bottom: 1.4em;
        }
        .article-content h2 {
            font-size: 24px;
            color: var(--primary);
            margin: 1.6em 0 .8em;
            font-weight: 700;
        }
        .article-content h3 {
            font-size: 20px;
            color: var(--primary);
            margin: 1.4em 0 .6em;
        }
        .article-content img {
            border-radius: var(--radius-sm);
            margin: 20px 0;
        }
        .article-content ul,
        .article-content ol {
            margin-bottom: 1.4em;
            padding-left: 1.4em;
        }
        .article-content ul {
            list-style: disc;
        }
        .article-content ol {
            list-style: decimal;
        }
        .article-content li {
            margin-bottom: .5em;
        }
        .article-content blockquote {
            border-left: 4px solid var(--accent);
            padding: 14px 20px;
            background: rgba(212, 168, 83, .06);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.4em 0;
            color: var(--muted);
        }
        .article-content a {
            color: var(--primary);
            font-weight: 600;
            border-bottom: 1px solid transparent;
        }
        .article-content a:hover {
            border-bottom-color: var(--primary);
        }
        .not-found {
            text-align: center;
            padding: 80px 20px;
        }
        .not-found h1 {
            font-size: 32px;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .not-found p {
            color: var(--muted);
            margin-bottom: 28px;
        }
        /* Category page */
        .cat-hero {
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 100px 0 70px;
            position: relative;
        }
        .cat-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(10, 26, 42, .92), rgba(10, 26, 42, .6));
        }
        .cat-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cat-hero h1 {
            color: #fff;
            font-size: 42px;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .cat-hero p {
            color: rgba(255, 255, 255, .8);
            max-width: 620px;
            margin: 0 auto 24px;
            font-size: 17px;
        }
        .cat-guide-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 26px;
        }
        .guide-card {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 34px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .guide-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .guide-card .icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(212, 168, 83, .12);
            color: #9a7420;
            font-size: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
        }
        .guide-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .guide-card p {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.7;
        }
        .cat-tips-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 26px;
        }
        .tip-card {
            border-radius: var(--radius);
            overflow: hidden;
            background: #fff;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        .tip-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .tip-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .tip-card-body {
            padding: 22px;
        }
        .tip-card-body h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .tip-card-body p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.6;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 42px;
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cat-tips-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .search-box input {
                width: 160px;
            }
        }
        @media (max-width: 768px) {
            .nav-wrap {
                height: auto;
                flex-wrap: wrap;
                padding: 14px 0;
                gap: 10px;
            }
            .nav-links {
                order: 3;
                width: 100%;
                justify-content: center;
                overflow-x: auto;
                padding-bottom: 4px;
            }
            .nav-right {
                margin-left: auto;
            }
            .hero {
                min-height: 520px;
            }
            .hero h1 {
                font-size: 34px;
            }
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            .section {
                padding: 60px 0;
            }
            .cat-card {
                grid-template-columns: 1fr;
            }
            .cat-card-img {
                min-height: 200px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .article-wrap {
                padding: 28px 20px;
            }
            .article-hero h1 {
                font-size: 28px;
            }
            .cat-hero h1 {
                font-size: 30px;
            }
        }
        @media (max-width: 520px) {
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .data-grid {
                grid-template-columns: 1fr;
            }
            .cat-tips-grid {
                grid-template-columns: 1fr;
            }
            .cat-guide-grid {
                grid-template-columns: 1fr;
            }
            .hero-btns {
                flex-direction: column;
                width: 100%;
            }
            .hero-btns a {
                text-align: center;
                justify-content: center;
            }
            .hero-stats {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .hs-item span {
                font-size: 24px;
            }
            .nav-right .search-box {
                display: none;
            }
            .btn-solid {
                padding: 9px 18px;
                font-size: 13px;
            }
            .cta-inner h2 {
                font-size: 28px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0d1b2a;
            --primary-light: #1b263b;
            --accent: #d4a762;
            --accent-hover: #c19355;
            --accent-light: rgba(212, 167, 98, 0.12);
            --bg: #f5f7fa;
            --bg-white: #ffffff;
            --text: #1a1f36;
            --text-muted: #5a6b80;
            --border: #e2e8f0;
            --radius: 14px;
            --radius-sm: 8px;
            --shadow: 0 4px 24px rgba(13, 27, 42, 0.06);
            --shadow-hover: 0 12px 40px rgba(13, 27, 42, 0.14);
            --transition: all 0.3s ease;
            --container-width: 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", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        ul,
        ol {
            list-style: none;
        }

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

        /* ===== 按钮 ===== */
        .btn-solid {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            background: var(--accent);
            color: #fff;
            border-radius: 50px;
            font-weight: 600;
            font-size: 14px;
            line-height: 1.5;
            box-shadow: 0 4px 16px rgba(212, 167, 98, 0.35);
            transition: var(--transition);
            cursor: pointer;
            border: none;
            white-space: nowrap;
        }
        .btn-solid:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(212, 167, 98, 0.45);
            color: #fff;
        }
        .btn-solid:active {
            transform: translateY(0);
        }
        .btn-solid:focus-visible {
            outline: 3px solid rgba(212, 167, 98, 0.4);
            outline-offset: 2px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
            border-radius: 50px;
            font-weight: 600;
            font-size: 14px;
            transition: var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(13, 27, 42, 0.2);
        }
        .btn-outline:focus-visible {
            outline: 3px solid rgba(13, 27, 42, 0.3);
            outline-offset: 2px;
        }

        .btn-light-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 26px;
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            border-radius: 50px;
            font-weight: 500;
            font-size: 14px;
            backdrop-filter: blur(8px);
            transition: var(--transition);
            cursor: pointer;
        }
        .btn-light-custom:hover {
            background: rgba(255, 255, 255, 0.22);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 区块标签 ===== */
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 16px;
            background: var(--accent-light);
            color: #a07c3a;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }

        .section-tag i {
            font-size: 12px;
        }

        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
        }

        .section-head h2 {
            font-size: 34px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 14px;
            letter-spacing: -0.5px;
        }

        .section-head p {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
        }

        /* ===== Header 导航 ===== */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            color: var(--primary);
            white-space: nowrap;
        }

        .logo i {
            font-size: 22px;
            color: var(--accent);
            background: var(--accent-light);
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
        }

        .logo span {
            letter-spacing: 0.3px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .nav-links a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            padding: 8px 4px;
            position: relative;
            transition: var(--transition);
        }

        .nav-links a::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: var(--transition);
        }

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

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .nav-links a.active {
            color: var(--accent);
            font-weight: 600;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 50px;
            padding: 8px 16px;
            transition: var(--transition);
            width: 200px;
        }

        .search-box:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(212, 167, 98, 0.15);
            background: #fff;
        }

        .search-box i {
            color: var(--text-muted);
            font-size: 13px;
        }

        .search-box input {
            border: none;
            background: transparent;
            font-size: 13px;
            width: 100%;
            color: var(--text);
        }

        .search-box input::placeholder {
            color: #9aa8b8;
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--bg);
            color: var(--primary);
            font-size: 16px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            border: 1px solid var(--border);
        }

        .nav-toggle:hover {
            background: var(--accent-light);
            color: var(--accent);
        }

        /* ===== Hero Banner ===== */
        .page-hero {
            position: relative;
            padding: 100px 0 100px;
            background: linear-gradient(135deg, rgba(13, 27, 42, 0.88) 0%, rgba(27, 38, 59, 0.75) 60%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            overflow: hidden;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            bottom: -80px;
            right: -40px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(212, 167, 98, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .breadcrumb-line {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 28px;
        }

        .breadcrumb-line a {
            color: rgba(255, 255, 255, 0.75);
        }

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

        .breadcrumb-line i {
            font-size: 10px;
            opacity: 0.6;
        }

        .page-hero h1 {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }

        .page-hero h1 span {
            color: var(--accent);
        }

        .page-hero .hero-desc {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            line-height: 1.8;
            margin-bottom: 32px;
        }

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

        .hero-stats {
            display: flex;
            gap: 32px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            flex-wrap: wrap;
        }

        .hero-stats .stat-item {
            display: flex;
            flex-direction: column;
        }

        .hero-stats .stat-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
        }

        .hero-stats .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
        }

        /* ===== 通用 Section ===== */
        .section {
            padding: 80px 0;
        }

        .section-alt {
            background: var(--bg-white);
            padding: 80px 0;
        }

        /* ===== 登录方式卡片 ===== */
        .methods-section {
            padding: 80px 0;
        }

        .method-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 34px 26px;
            text-align: center;
            height: 100%;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .method-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), #e8bc7d);
            transform: scaleX(0);
            transform-origin: left;
            transition: var(--transition);
        }

        .method-card:hover {
            border-color: transparent;
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
        }

        .method-card:hover::before {
            transform: scaleX(1);
        }

        .method-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            background: var(--accent-light);
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: #a07c3a;
            transition: var(--transition);
        }

        .method-card:hover .method-icon {
            background: var(--accent);
            color: #fff;
            transform: scale(1.05);
        }

        .method-tag {
            display: inline-block;
            padding: 3px 12px;
            background: var(--bg);
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            color: var(--text-muted);
            margin-bottom: 14px;
            transition: var(--transition);
        }

        .method-card:hover .method-tag {
            background: var(--accent-light);
            color: var(--accent);
        }

        .method-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .method-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 登录流程 ===== */
        .steps-section {
            padding: 80px 0;
            background: var(--primary);
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .steps-section::before {
            content: "";
            position: absolute;
            top: -120px;
            right: -80px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(212, 167, 98, 0.15) 0%, transparent 70%);
            border-radius: 50%;
        }

        .steps-section .section-head h2 {
            color: #fff;
        }

        .steps-section .section-head p {
            color: rgba(255, 255, 255, 0.6);
        }

        .steps-section .section-tag {
            background: rgba(212, 167, 98, 0.15);
            color: var(--accent);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
            z-index: 2;
        }

        .step-item {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius);
            padding: 30px 24px;
            position: relative;
            backdrop-filter: blur(4px);
            transition: var(--transition);
        }

        .step-item:hover {
            background: rgba(255, 255, 255, 0.09);
            border-color: rgba(212, 167, 98, 0.4);
            transform: translateY(-4px);
        }

        .step-num {
            font-size: 36px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 16px;
            opacity: 0.8;
        }

        .step-item h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 10px;
            color: #fff;
        }

        .step-item p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
        }

        /* ===== 安全指南 ===== */
        .safety-section {
            padding: 80px 0;
            background: var(--bg-white);
        }

        .safety-image {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            position: relative;
        }

        .safety-image img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            transition: var(--transition);
        }

        .safety-image:hover img {
            transform: scale(1.03);
        }

        .safety-image::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(13, 27, 42, 0.35) 0%, transparent 40%);
        }

        .safety-content {
            padding-left: 24px;
        }

        .safety-content .section-head {
            text-align: left;
            margin-bottom: 28px;
        }

        .safety-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .safety-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 16px 18px;
            background: var(--bg);
            border-radius: 12px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .safety-item:hover {
            border-color: var(--accent);
            box-shadow: 0 4px 16px rgba(212, 167, 98, 0.12);
            transform: translateX(4px);
        }

        .safety-item i {
            font-size: 18px;
            color: var(--accent);
            flex-shrink: 0;
            margin-top: 4px;
            width: 28px;
            height: 28px;
            background: var(--accent-light);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }

        .safety-item div h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 4px;
        }

        .safety-item div p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 80px 0;
        }

        .faq-accordion {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-accordion .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius) !important;
            margin-bottom: 14px;
            overflow: hidden;
            background: var(--bg-white);
            box-shadow: 0 2px 8px rgba(13, 27, 42, 0.04);
            transition: var(--transition);
        }

        .faq-accordion .accordion-item:hover {
            border-color: rgba(212, 167, 98, 0.4);
            box-shadow: 0 4px 16px rgba(212, 167, 98, 0.1);
        }

        .faq-accordion .accordion-button {
            padding: 18px 22px;
            background: var(--bg-white);
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            box-shadow: none;
            border: none;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--accent);
            background: var(--accent-light);
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(212, 167, 98, 0.2);
        }

        .faq-accordion .accordion-button::after {
            background-size: 16px;
            opacity: 0.6;
        }

        .faq-accordion .accordion-body {
            padding: 0 22px 20px;
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-muted);
            background: var(--bg-white);
            border-top: 1px solid var(--border);
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, rgba(13, 27, 42, 0.92) 0%, rgba(27, 38, 59, 0.82) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-box {
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
            padding: 40px 0;
            position: relative;
            z-index: 2;
        }

        .cta-box h2 {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .cta-box p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 30px;
            line-height: 1.8;
        }

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

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary);
            color: #fff;
            padding: 64px 0 0;
            border-top: 4px solid var(--accent);
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand .logo i {
            background: rgba(255, 255, 255, 0.08);
            color: var(--accent);
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-col h5 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
            color: #fff;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-col h5::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 24px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            padding: 5px 0;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--accent);
            padding-left: 6px;
        }

        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .nav-toggle {
                display: inline-flex;
                margin-left: auto;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                width: 100%;
                background: #fff;
                flex-direction: column;
                padding: 16px 24px;
                gap: 8px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links a {
                padding: 12px 8px;
                font-size: 15px;
                border-radius: 8px;
                border-bottom: 1px solid var(--border);
            }

            .nav-links a:last-child {
                border-bottom: none;
            }

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

            .nav-links a.active {
                background: var(--accent-light);
                color: var(--accent);
            }

            .search-box {
                width: 160px;
            }

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

        @media (max-width: 767.98px) {
            .nav-right .search-box {
                display: none;
            }

            .nav-wrap {
                height: 64px;
                gap: 12px;
            }

            .logo span {
                font-size: 15px;
            }

            .logo i {
                width: 34px;
                height: 34px;
                font-size: 18px;
            }

            .nav-links {
                top: 64px;
            }

            .btn-solid {
                padding: 8px 16px;
                font-size: 13px;
            }

            .page-hero {
                padding: 70px 0;
            }

            .page-hero h1 {
                font-size: 30px;
            }

            .page-hero .hero-desc {
                font-size: 15px;
            }

            .hero-stats {
                gap: 20px;
                margin-top: 32px;
                padding-top: 24px;
            }

            .hero-stats .stat-num {
                font-size: 22px;
            }

            .section,
            .section-alt,
            .methods-section,
            .steps-section,
            .safety-section,
            .faq-section,
            .cta-section {
                padding: 50px 0;
            }

            .section-head {
                margin-bottom: 32px;
            }

            .section-head h2 {
                font-size: 26px;
            }

            .section-head p {
                font-size: 14px;
            }

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

            .safety-content {
                padding-left: 0;
                margin-top: 32px;
            }

            .safety-image img {
                height: 300px;
            }

            .cta-box h2 {
                font-size: 28px;
            }

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

            .footer-brand p {
                max-width: 100%;
            }

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

            .hero-actions .btn-solid,
            .hero-actions .btn-light-custom {
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .logo span {
                font-size: 14px;
            }

            .btn-solid {
                padding: 8px 14px;
                font-size: 12px;
            }

            .nav-right .btn-solid i {
                display: none;
            }

            .method-card {
                padding: 26px 18px;
            }

            .step-item {
                padding: 24px 20px;
            }

            .safety-item {
                padding: 14px 14px;
            }
        }

/* roulang page: article */
:root {
            --brand: #1a56db;
            --brand-dark: #0d2a5c;
            --brand-deep: #081632;
            --brand-light: #eaf1fc;
            --accent: #f5b72e;
            --accent-soft: #ffd166;
            --bg: #f4f7fc;
            --text: #16243a;
            --text-light: #5d6f85;
            --border: #e2e8f2;
            --white: #ffffff;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 10px rgba(10, 30, 66, .06);
            --shadow-md: 0 10px 30px rgba(10, 30, 66, .09);
            --shadow-lg: 0 20px 50px rgba(10, 30, 66, .13);
            --transition: all .25s ease;
            --font-body: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }

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

        body {
            font-family: var(--font-body);
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

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

        button, input {
            font-family: inherit;
        }

        a:focus-visible, button:focus-visible, input:focus-visible {
            outline: 3px solid rgba(26, 86, 219, .45);
            outline-offset: 2px;
        }

        .reading-progress {
            position: fixed;
            top: 0;
            left: 0;
            height: 3px;
            width: 0;
            background: linear-gradient(90deg, var(--accent), var(--brand));
            z-index: 1150;
            transition: width .12s linear;
        }

        .container {
            max-width: 1200px;
        }

        /* ============ Header ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, .96);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            min-height: 76px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--brand-dark);
            flex-shrink: 0;
        }

        .logo i {
            display: grid;
            place-items: center;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--brand), var(--brand-dark));
            color: #fff;
            font-size: 20px;
            box-shadow: 0 6px 16px rgba(26, 86, 219, .3);
        }

        .logo span {
            font-size: 19px;
            font-weight: 700;
            letter-spacing: .02em;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }

        .nav-links a {
            position: relative;
            padding: 10px 18px;
            border-radius: 10px;
            font-weight: 500;
            color: var(--text);
            white-space: nowrap;
            transition: var(--transition);
        }

        .nav-links a:hover {
            color: var(--brand);
            background: var(--brand-light);
        }

        .nav-links a.active {
            color: var(--brand);
            background: var(--brand-light);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: 4px;
            height: 3px;
            border-radius: 4px;
            background: var(--accent);
        }

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

        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            background: #f2f5fa;
            border: 1px solid var(--border);
            border-radius: 30px;
            padding: 8px 16px;
            width: 200px;
            transition: var(--transition);
        }

        .search-box:focus-within {
            border-color: var(--brand);
            box-shadow: 0 0 0 4px rgba(26, 86, 219, .12);
            background: #fff;
        }

        .search-box i {
            color: var(--text-light);
            font-size: 14px;
            flex-shrink: 0;
        }

        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 14px;
            color: var(--text);
            width: 100%;
        }

        .btn-solid {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: 30px;
            background: var(--brand);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border: none;
            box-shadow: 0 8px 20px rgba(26, 86, 219, .28);
            transition: var(--transition);
        }

        .btn-solid:hover {
            background: var(--brand-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 12px 26px rgba(26, 86, 219, .34);
        }

        .btn-solid:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(26, 86, 219, .24);
        }

        /* ============ Page Banner ============ */
        .page-banner {
            position: relative;
            padding: 62px 0 48px;
            background-size: cover;
            background-position: center;
            border-bottom: 4px solid var(--accent);
            color: #fff;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(8, 22, 48, .94), rgba(13, 42, 92, .82), rgba(26, 86, 219, .6));
        }

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

        .breadcrumb-line {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            margin-bottom: 18px;
            flex-wrap: wrap;
        }

        .breadcrumb-line a {
            color: rgba(255, 255, 255, .82);
            transition: var(--transition);
        }

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

        .breadcrumb-line i {
            font-size: 10px;
            color: rgba(255, 255, 255, .5);
        }

        .breadcrumb-line span {
            color: var(--accent);
        }

        .banner-badge-row {
            margin-bottom: 12px;
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 18px;
            background: var(--accent);
            color: var(--brand-dark);
            border-radius: 24px;
            font-size: 13px;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(245, 183, 46, .3);
        }

        .banner-note {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            letter-spacing: .06em;
            color: rgba(255, 255, 255, .9);
            border: 1px solid rgba(255, 255, 255, .3);
            padding: 8px 18px;
            border-radius: 30px;
            background: rgba(255, 255, 255, .08);
            margin: 0;
        }

        /* ============ Article Main ============ */
        .article-container {
            padding-top: 48px;
            padding-bottom: 80px;
        }

        .article-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 40px;
            margin-bottom: 32px;
            transition: box-shadow .3s ease;
        }

        .article-card:hover {
            box-shadow: var(--shadow-md);
        }

        .article-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--brand-dark);
            margin-bottom: 16px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border);
            margin-bottom: 28px;
            color: var(--text-light);
            font-size: 14px;
        }

        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .meta-item i {
            color: var(--brand);
        }

        .article-content {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text);
            word-break: break-word;
        }

        .article-content h2,
        .article-content h3,
        .article-content h4 {
            color: var(--brand-dark);
            font-weight: 700;
            margin-top: 32px;
            margin-bottom: 16px;
        }

        .article-content h2 {
            font-size: 24px;
            padding-left: 14px;
            border-left: 4px solid var(--accent);
        }

        .article-content h3 {
            font-size: 20px;
        }

        .article-content p {
            margin-bottom: 18px;
        }

        .article-content img {
            max-width: 100%;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            margin: 24px 0;
        }

        .article-content a {
            color: var(--brand);
            text-decoration: underline;
            transition: opacity .2s;
        }

        .article-content a:hover {
            opacity: .8;
        }

        .article-content ul,
        .article-content ol {
            padding-left: 24px;
            margin-bottom: 18px;
        }

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

        .article-content blockquote {
            border-left: 4px solid var(--accent);
            background: var(--brand-light);
            padding: 16px 20px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
            color: var(--brand-dark);
        }

        .article-content table {
            width: 100%;
            max-width: 100%;
            margin-bottom: 20px;
            border-collapse: collapse;
            background: #fff;
            border-radius: var(--radius-sm);
            overflow: hidden;
        }

        .article-content table th,
        .article-content table td {
            border: 1px solid var(--border);
            padding: 10px 14px;
            font-size: 14px;
        }

        .article-content table th {
            background: var(--brand-light);
            color: var(--brand-dark);
            font-weight: 600;
        }

        .article-content code {
            background: #f0f4fa;
            padding: 2px 8px;
            border-radius: 6px;
            font-size: 14px;
            color: var(--brand);
        }

        .article-tags {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            border-top: 1px solid var(--border);
            padding-top: 24px;
            margin-top: 32px;
            color: var(--text-light);
            font-size: 14px;
        }

        .article-tags > i {
            color: var(--accent);
            font-size: 16px;
        }

        .tag-chip {
            display: inline-block;
            padding: 6px 16px;
            background: var(--brand-light);
            border-radius: 20px;
            color: var(--brand);
            font-size: 13px;
            font-weight: 500;
            transition: var(--transition);
        }

        .tag-chip:hover {
            background: var(--brand);
            color: #fff;
            transform: translateY(-2px);
        }

        .article-nav-links {
            display: flex;
            justify-content: space-between;
            gap: 14px;
            margin-top: 28px;
            flex-wrap: wrap;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 20px;
            border-radius: 24px;
            border: 1px solid var(--brand);
            color: var(--brand);
            font-weight: 600;
            font-size: 14px;
            background: transparent;
            transition: var(--transition);
        }

        .btn-outline:hover {
            background: var(--brand);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 20px;
            border-radius: 24px;
            border: 1px solid var(--border);
            color: var(--text-light);
            font-weight: 500;
            font-size: 14px;
            background: transparent;
            transition: var(--transition);
        }

        .btn-ghost:hover {
            border-color: var(--brand);
            color: var(--brand);
            background: var(--brand-light);
        }

        /* ============ Not Found ============ */
        .not-found {
            text-align: center;
            padding: 40px 20px;
        }

        .nf-icon {
            width: 84px;
            height: 84px;
            border-radius: 50%;
            background: var(--brand-light);
            display: grid;
            place-items: center;
            font-size: 34px;
            color: var(--brand);
            margin: 0 auto 20px;
            box-shadow: var(--shadow-sm);
        }

        .not-found h1 {
            font-size: 26px;
            color: var(--brand-dark);
            margin-bottom: 12px;
        }

        .not-found p {
            color: var(--text-light);
            margin-bottom: 24px;
            max-width: 420px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ============ Sidebar ============ */
        .article-sidebar {
            position: sticky;
            top: 100px;
        }

        .side-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            margin-bottom: 24px;
            overflow: hidden;
            transition: box-shadow .3s ease;
        }

        .side-card:hover {
            box-shadow: var(--shadow-md);
        }

        .side-guide .side-card-img {
            position: relative;
            height: 136px;
            overflow: hidden;
        }

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

        .side-guide:hover .side-card-img img {
            transform: scale(1.05);
        }

        .side-img-mask {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent, rgba(10, 30, 66, .4));
        }

        .side-card-body {
            padding: 20px;
        }

        .side-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 8px;
        }

        .side-card-body p {
            font-size: 14px;
            color: var(--text-light);
            margin-bottom: 14px;
            line-height: 1.7;
        }

        .side-title {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 17px;
            font-weight: 700;
            color: var(--brand-dark);
            padding: 18px 20px 14px;
            border-bottom: 1px solid var(--border);
        }

        .side-title i {
            color: var(--accent);
        }

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

        .side-list li {
            border-bottom: 1px solid #f1f4f9;
        }

        .side-list li:last-child {
            border-bottom: none;
        }

        .side-list a {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            padding: 13px 20px;
            transition: var(--transition);
        }

        .side-list a:hover {
            background: var(--brand-light);
            padding-left: 24px;
        }

        .side-list-text {
            font-size: 14px;
            color: var(--text);
            line-height: 1.5;
            flex: 1;
        }

        .side-list a:hover .side-list-text {
            color: var(--brand);
        }

        .side-list-date {
            font-size: 12px;
            color: var(--text-light);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .side-empty {
            padding: 18px 20px;
            font-size: 14px;
            color: var(--text-light);
            margin: 0;
        }

        .service-list {
            list-style: none;
            padding: 16px 20px 20px;
            margin: 0;
        }

        .service-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 0;
            font-size: 14px;
            color: var(--text);
        }

        .service-list li i {
            color: var(--brand);
            flex-shrink: 0;
        }

        /* ============ Section Head ============ */
        .section-head {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-eyebrow {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 20px;
            background: rgba(245, 183, 46, .15);
            color: var(--brand);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .06em;
            margin-bottom: 14px;
        }

        .section-head h2 {
            color: var(--brand-dark);
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .section-head p {
            color: var(--text-light);
            font-size: 15px;
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* ============ Feature Strip ============ */
        .feature-strip {
            background: var(--brand-deep);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .feature-strip::before {
            content: '';
            position: absolute;
            width: 420px;
            height: 420px;
            right: -140px;
            top: -140px;
            border-radius: 50%;
            background: rgba(26, 86, 219, .22);
        }

        .feature-strip::after {
            content: '';
            position: absolute;
            width: 260px;
            height: 260px;
            left: -100px;
            bottom: -120px;
            border-radius: 50%;
            background: rgba(245, 183, 46, .08);
        }

        .feature-strip .container {
            position: relative;
            z-index: 2;
        }

        .feature-strip .section-head h2 {
            color: #fff;
        }

        .feature-strip .section-head p {
            color: rgba(255, 255, 255, .7);
        }

        .feature-strip .section-eyebrow {
            background: rgba(245, 183, 46, .16);
            color: var(--accent);
        }

        .feature-card {
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: var(--radius-md);
            padding: 30px 24px;
            height: 100%;
            text-align: center;
            transition: var(--transition);
        }

        .feature-card:hover {
            background: rgba(255, 255, 255, .12);
            transform: translateY(-6px);
            border-color: rgba(245, 183, 46, .4);
            box-shadow: 0 14px 30px rgba(0, 0, 0, .2);
        }

        .feature-icon {
            width: 58px;
            height: 58px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--accent), var(--accent-soft));
            display: grid;
            place-items: center;
            font-size: 22px;
            color: var(--brand-dark);
            margin: 0 auto 18px;
            box-shadow: 0 8px 20px rgba(245, 183, 46, .3);
        }

        .feature-card h3 {
            color: #fff;
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .feature-card p {
            color: rgba(255, 255, 255, .7);
            font-size: 14px;
            line-height: 1.7;
            margin: 0;
        }

        /* ============ CTA ============ */
        .cta-section {
            position: relative;
            padding: 90px 0;
            background-size: cover;
            background-position: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(8, 22, 48, .9), rgba(13, 42, 92, .74));
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
            color: #fff;
        }

        .cta-inner h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, .8);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 28px;
        }

        .btn-gold {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 30px;
            background: var(--accent);
            color: var(--brand-dark);
            font-weight: 700;
            font-size: 15px;
            border: none;
            box-shadow: 0 10px 24px rgba(245, 183, 46, .4);
            transition: var(--transition);
        }

        .btn-gold:hover {
            background: var(--accent-soft);
            transform: translateY(-3px);
            box-shadow: 0 14px 30px rgba(245, 183, 46, .5);
            color: var(--brand-dark);
        }

        .btn-gold:active {
            transform: translateY(0);
        }

        /* ============ FAQ ============ */
        .faq-section {
            background: var(--bg);
            padding: 90px 0;
        }

        .accordion.custom-accordion {
            --bs-accordion-border-color: var(--border);
            --bs-accordion-border-radius: var(--radius-md);
            --bs-accordion-bg: #fff;
            --bs-accordion-active-bg: var(--brand-light);
            --bs-accordion-btn-color: var(--text);
            --bs-accordion-btn-active-color: var(--brand);
            --bs-accordion-btn-focus-box-shadow: 0 0 0 4px rgba(26, 86, 219, .12);
            --bs-accordion-btn-padding-y: 18px;
            --bs-accordion-body-padding-y: 18px;
        }

        .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-md) !important;
            overflow: hidden;
            margin-bottom: 14px;
            box-shadow: var(--shadow-sm);
        }

        .accordion-button {
            font-weight: 600;
            font-size: 15px;
            padding: 18px 22px;
            color: var(--text);
        }

        .accordion-button:not(.collapsed) {
            background: var(--brand-light);
            color: var(--brand);
        }

        .accordion-button:after {
            background-size: 14px;
        }

        .accordion-body {
            color: var(--text-light);
            font-size: 14.5px;
            line-height: 1.85;
            padding: 18px 22px 20px;
        }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--brand-deep);
            color: rgba(255, 255, 255, .8);
            padding: 56px 0 0;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, .1);
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand p {
            color: rgba(255, 255, 255, .66);
            font-size: 14px;
            line-height: 1.8;
            margin: 0;
            max-width: 360px;
        }

        .footer-col h5 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, .66);
            font-size: 14px;
            margin-bottom: 10px;
            transition: var(--transition);
        }

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

        .footer-bottom {
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
        }

        .footer-bottom p {
            margin: 0;
        }

        /* ============ Responsive ============ */
        @media (max-width: 991.98px) {
            .nav-wrap {
                flex-wrap: wrap;
                min-height: 64px;
                padding-top: 10px;
                padding-bottom: 10px;
            }

            .nav-links {
                order: 3;
                flex: 1 0 100%;
                justify-content: flex-start;
                overflow-x: auto;
                padding-bottom: 6px;
                gap: 4px;
                scrollbar-width: thin;
            }

            .nav-links a {
                padding: 8px 16px;
                font-size: 14px;
            }

            .search-box {
                display: none;
            }

            .article-sidebar {
                position: static;
                margin-top: 8px;
            }

            .article-card {
                padding: 30px;
            }
        }

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

            .logo span {
                font-size: 16px;
            }

            .logo i {
                width: 36px;
                height: 36px;
                font-size: 16px;
                border-radius: 10px;
            }

            .btn-solid {
                padding: 8px 16px;
                font-size: 13px;
            }

            .page-banner {
                padding: 46px 0 38px;
            }

            .article-container {
                padding-top: 32px;
                padding-bottom: 56px;
            }

            .article-card {
                padding: 22px;
            }

            .article-title {
                font-size: 23px;
            }

            .article-meta {
                gap: 10px;
                font-size: 13px;
            }

            .article-content {
                font-size: 15px;
                line-height: 1.85;
            }

            .article-content h2 {
                font-size: 20px;
            }

            .article-content h3 {
                font-size: 18px;
            }

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

            .section-head h2 {
                font-size: 26px;
            }

            .feature-strip {
                padding: 56px 0;
            }

            .cta-section {
                padding: 60px 0;
            }

            .cta-inner h2 {
                font-size: 26px;
            }

            .faq-section {
                padding: 60px 0;
            }

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

        @media (max-width: 575.98px) {
            .nav-right .search-box {
                display: none;
            }

            .banner-note {
                display: none;
            }

            .breadcrumb-line {
                font-size: 13px;
            }

            .article-nav-links {
                flex-direction: column;
            }

            .article-nav-links .btn-outline,
            .article-nav-links .btn-ghost {
                justify-content: center;
            }

            .side-list-date {
                display: none;
            }
        }