/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0c0c14;
            --primary-light: #12121c;
            --primary-hover: #1a1a28;
            --accent: #c9a84c;
            --accent-light: #e8d5a3;
            --accent-glow: rgba(201, 168, 76, 0.08);
            --accent-border: rgba(201, 168, 76, 0.15);
            --text-main: #f5f5f0;
            --text-secondary: #a0a0a0;
            --text-muted: #6b6b80;
            --border-color: #2a2a3a;
            --border-light: #3a3a4a;
            --success: #27ae60;
            --error: #e74c3c;
            --font-cn: 'Noto Sans SC', 'Source Han Sans SC', system-ui, -apple-system, sans-serif;
            --font-en: 'Inter', 'Helvetica Neue', Arial, sans-serif;
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 8px;
            --radius-xl: 24px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
            --shadow-hover: 0 8px 40px rgba(201, 168, 76, 0.08), 0 0 0 1px rgba(201, 168, 76, 0.15);
            --shadow-btn: 0 2px 12px rgba(201, 168, 76, 0.25);
            --shadow-float: 0 8px 32px rgba(0, 0, 0, 0.5);
            --transition-fast: 0.25s ease;
            --transition-smooth: 0.35s ease;
            --nav-height: 72px;
            --nav-height-mobile: 60px;
            --max-width: 1200px;
            --gutter: 20px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-cn);
            font-size: 1rem;
            line-height: 1.7;
            font-weight: 400;
            color: var(--text-main);
            background: var(--primary);
            min-height: 100vh;
            overflow-x: hidden;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 400;
            line-height: 1.3;
            color: var(--text-main);
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--gutter);
            width: 100%;
        }

        /* ===== Header / Nav ===== */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            transition: background var(--transition-fast), box-shadow var(--transition-fast);
        }
        header.scrolled {
            background: rgba(12, 12, 20, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: 0 1px 0 var(--border-color);
        }
        header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: baseline;
            gap: 2px;
            flex-shrink: 0;
        }
        .logo-main {
            font-family: var(--font-cn);
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-main);
            letter-spacing: 0.02em;
        }
        .logo-main .highlight {
            color: var(--accent);
        }
        .logo-sub {
            font-family: var(--font-cn);
            font-size: 0.75rem;
            font-weight: 300;
            color: var(--text-secondary);
            margin-left: 4px;
            letter-spacing: 0.04em;
        }

        /* 搜索框 - 导航中心 */
        .nav-search {
            flex: 1;
            max-width: 400px;
            margin: 0 24px;
            position: relative;
        }
        .nav-search-inner {
            display: flex;
            align-items: center;
            background: var(--primary-hover);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            height: 42px;
            padding: 0 4px 0 16px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .nav-search-inner:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 2px rgba(201, 168, 76, 0.2);
        }
        .nav-search-icon {
            color: var(--accent);
            font-size: 0.875rem;
            margin-right: 8px;
            flex-shrink: 0;
        }
        .nav-search input {
            flex: 1;
            background: transparent;
            border: none;
            outline: none;
            color: var(--text-main);
            font-size: 0.875rem;
            height: 100%;
            min-height: 38px;
        }
        .nav-search input::placeholder {
            color: var(--text-muted);
        }
        .nav-search-actions {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
            padding-right: 4px;
        }
        .nav-search-actions button {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            cursor: pointer;
            transition: color var(--transition-fast), background var(--transition-fast);
            background: transparent;
        }
        .nav-search-actions button:hover {
            color: var(--accent-light);
            background: rgba(255, 255, 255, 0.05);
        }

        /* 导航菜单 */
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
        }
        .nav-menu a {
            display: block;
            padding: 8px 14px;
            font-size: 0.875rem;
            font-weight: 400;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: color var(--transition-fast), background var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }
        .nav-menu a:hover {
            color: var(--accent-light);
            background: rgba(255, 255, 255, 0.03);
        }
        .nav-menu a.active {
            color: var(--text-main);
        }
        .nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--accent);
            border-radius: 1px;
        }

        /* 汉堡菜单 */
        .hamburger {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 40px;
            height: 40px;
            cursor: pointer;
            background: transparent;
            border: none;
            gap: 5px;
            flex-shrink: 0;
            z-index: 1001;
        }
        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-main);
            border-radius: 1px;
            transition: transform var(--transition-fast), opacity var(--transition-fast);
        }
        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* 移动端下拉菜单 */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 280px;
            height: 100vh;
            background: var(--primary-light);
            border-left: 1px solid var(--border-color);
            padding: calc(var(--nav-height-mobile) + 20px) 24px 24px;
            z-index: 999;
            transform: translateX(100%);
            transition: transform var(--transition-smooth);
            overflow-y: auto;
        }
        .mobile-menu.open {
            transform: translateX(0);
        }
        .mobile-menu a {
            display: block;
            padding: 14px 0;
            font-size: 1rem;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-color);
            transition: color var(--transition-fast);
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--accent-light);
        }
        .mobile-menu-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 998;
        }
        .mobile-menu-overlay.open {
            display: block;
        }

        /* ===== Hero ===== */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            background: linear-gradient(135deg, var(--primary) 0%, #16161f 100%);
            overflow: hidden;
            padding-top: var(--nav-height);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') no-repeat bottom right / 50% auto;
            opacity: 0.15;
            pointer-events: none;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            padding-top: 40px;
            padding-bottom: 60px;
        }
        .hero-text {
            max-width: 640px;
        }
        .hero-text h1 {
            font-size: 3.25rem;
            font-weight: 300;
            line-height: 1.2;
            letter-spacing: 0.02em;
            color: var(--text-main);
            margin-bottom: 16px;
        }
        .hero-text .subtitle {
            font-size: 1.25rem;
            font-weight: 400;
            color: var(--accent-light);
            letter-spacing: 0.08em;
            margin-bottom: 32px;
            line-height: 1.5;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-actions .btn {
            padding: 14px 40px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            min-height: 48px;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary);
            border: none;
            box-shadow: var(--shadow-btn);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            color: var(--primary);
            box-shadow: 0 4px 20px rgba(201, 168, 76, 0.4);
            transform: translateY(-1px);
        }
        .btn-secondary {
            background: transparent;
            color: var(--accent);
            border: 1px solid var(--accent);
        }
        .btn-secondary:hover {
            background: rgba(201, 168, 76, 0.08);
            color: var(--accent-light);
            border-color: var(--accent-light);
        }
        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
        }
        .hero-visual svg {
            width: 100%;
            max-width: 380px;
            height: auto;
        }
        .scroll-indicator {
            position: absolute;
            bottom: 24px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 3;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            color: var(--text-muted);
            font-size: 0.75rem;
            cursor: pointer;
            animation: scrollPulse 2s ease-in-out infinite;
        }
        .scroll-indicator .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            opacity: 0.6;
        }
        @keyframes scrollPulse {
            0%,
            100% {
                opacity: 0.4;
                transform: translateX(-50%) translateY(0);
            }
            50% {
                opacity: 1;
                transform: translateX(-50%) translateY(6px);
            }
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 6rem 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: 2.25rem;
            font-weight: 300;
            letter-spacing: 0.01em;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .section-header p {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }
        .section-header .more-link {
            display: inline-block;
            margin-top: 12px;
            font-size: 0.875rem;
            color: var(--accent);
            transition: color var(--transition-fast);
        }
        .section-header .more-link:hover {
            color: var(--accent-light);
            text-decoration: underline;
        }

        /* ===== 卖点区（三列卡片） ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--primary-light);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            transition: all var(--transition-smooth);
            cursor: default;
        }
        .feature-card:hover {
            border-color: rgba(201, 168, 76, 0.3);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .feature-icon {
            font-size: 1.75rem;
            color: var(--accent);
            margin-bottom: 16px;
            display: block;
        }
        .feature-card h3 {
            font-size: 1.25rem;
            font-weight: 500;
            margin-bottom: 12px;
            color: var(--text-main);
        }
        .feature-card ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .feature-card ul li {
            font-size: 0.9rem;
            color: var(--text-secondary);
            padding-left: 20px;
            position: relative;
            line-height: 1.5;
        }
        .feature-card ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
        }

        /* ===== 最新资讯区 ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .news-card {
            background: var(--primary-light);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.25rem 1.5rem;
            transition: all var(--transition-smooth);
            cursor: pointer;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .news-card:hover {
            border-color: rgba(201, 168, 76, 0.25);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .news-card .tag {
            display: inline-block;
            padding: 2px 10px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--accent-light);
            background: rgba(201, 168, 76, 0.15);
            border-radius: 20px;
            align-self: flex-start;
            text-transform: uppercase;
            letter-spacing: 0.03em;
        }
        .news-card h4 {
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-main);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card p {
            font-size: 0.875rem;
            color: var(--text-secondary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.5;
            margin-top: 2px;
        }
        .news-card .meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 6px;
        }
        .news-card .meta .cat {
            color: var(--accent-light);
        }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 3rem 1.5rem;
            border: 2px dashed var(--border-color);
            border-radius: var(--radius-md);
            color: var(--text-muted);
            font-size: 0.95rem;
            background: transparent;
        }

        /* ===== 证据区（两栏） ===== */
        .proof-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .proof-text h2 {
            font-size: 2rem;
            font-weight: 300;
            margin-bottom: 24px;
            color: var(--text-main);
        }
        .proof-points {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-bottom: 28px;
        }
        .proof-point {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }
        .proof-point .icon {
            color: var(--accent);
            font-size: 1.1rem;
            flex-shrink: 0;
            margin-top: 2px;
        }
        .proof-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
            margin-top: 8px;
        }
        .proof-stat {
            text-align: left;
        }
        .proof-stat .number {
            font-size: 2.5rem;
            font-weight: 300;
            color: var(--accent-light);
            line-height: 1.1;
        }
        .proof-stat .label {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .proof-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: inset 0 0 30px rgba(0, 0, 0, 0.3);
            background: var(--primary-light);
        }
        .proof-image img {
            width: 100%;
            height: auto;
            display: block;
        }

        /* ===== 服务权益区（三卡片，中间突出） ===== */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: start;
        }
        .pricing-card {
            background: var(--primary-light);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem;
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .pricing-card.featured {
            border: 2px solid var(--accent);
            background: var(--primary-hover);
            transform: scale(1.03);
            box-shadow: var(--shadow-btn);
        }
        .pricing-card.featured:hover {
            transform: scale(1.03) translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .pricing-card:hover:not(.featured) {
            border-color: rgba(201, 168, 76, 0.2);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .pricing-card .plan-name {
            font-size: 1.15rem;
            font-weight: 500;
            color: var(--text-main);
        }
        .pricing-card .plan-price {
            font-size: 1.75rem;
            font-weight: 300;
            color: var(--accent-light);
            line-height: 1.2;
        }
        .pricing-card .plan-price small {
            font-size: 0.75rem;
            color: var(--text-muted);
            font-weight: 400;
        }
        .pricing-card .plan-features {
            display: flex;
            flex-direction: column;
            gap: 10px;
            padding: 8px 0;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .pricing-card .plan-features li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .pricing-card .plan-features li .check {
            color: var(--accent);
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        .pricing-card .btn {
            padding: 12px 24px;
            font-size: 0.9rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all var(--transition-fast);
            text-align: center;
            border: none;
            min-height: 44px;
        }
        .pricing-card .btn-primary {
            background: var(--accent);
            color: var(--primary);
        }
        .pricing-card .btn-primary:hover {
            background: var(--accent-light);
            transform: translateY(-1px);
        }
        .pricing-card .btn-outline {
            background: transparent;
            color: var(--accent);
            border: 1px solid var(--accent);
        }
        .pricing-card .btn-outline:hover {
            background: rgba(201, 168, 76, 0.08);
            color: var(--accent-light);
        }

        /* ===== FAQ 手风琴 ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--primary-light);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition-fast);
        }
        .faq-item.open {
            border-color: rgba(201, 168, 76, 0.25);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-main);
            transition: color var(--transition-fast);
            user-select: none;
            gap: 12px;
        }
        .faq-question:hover {
            color: var(--accent-light);
        }
        .faq-question .arrow {
            font-size: 0.85rem;
            color: var(--accent);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .arrow {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }
        .faq-answer p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ===== CTA 区 ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, #1a1a28 100%);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .cta-inner {
            text-align: center;
            padding: 4rem 0;
        }
        .cta-inner h2 {
            font-size: 2rem;
            font-weight: 300;
            margin-bottom: 12px;
        }
        .cta-inner p {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-inner .btn {
            padding: 16px 48px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            min-height: 48px;
        }

        /* ===== Footer ===== */
        footer {
            background: #0a0a0f;
            border-top: 1px solid var(--border-color);
            padding: 48px 0 24px;
        }
        footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        footer .footer-brand .logo {
            margin-bottom: 12px;
        }
        footer .footer-brand p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            max-width: 320px;
        }
        footer .footer-links h4 {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }
        footer .footer-links a {
            display: block;
            padding: 5px 0;
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        footer .footer-links a:hover {
            color: var(--accent-light);
        }
        footer .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 8px;
        }
        footer .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--text-muted);
            font-size: 1rem;
            transition: all var(--transition-fast);
            border: 1px solid var(--border-color);
        }
        footer .footer-social a:hover {
            color: var(--accent);
            background: var(--primary-hover);
            border-color: var(--accent);
        }
        footer .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* ===== 浮动CTA（首页不显示） ===== */
        .float-cta {
            position: fixed;
            bottom: 24px;
            right: 24px;
            z-index: 100;
            display: none;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary);
            font-size: 1.25rem;
            box-shadow: var(--shadow-float);
            cursor: pointer;
            transition: all var(--transition-fast);
            border: none;
        }
        .float-cta:hover {
            background: var(--accent-light);
            transform: scale(1.05);
            box-shadow: 0 12px 40px rgba(201, 168, 76, 0.3);
        }

        /* ===== 响应式 ===== */

        /* 平板 768px */
        @media (max-width: 768px) {
            :root {
                --nav-height: var(--nav-height-mobile);
            }
            .nav-menu {
                display: none;
            }
            .nav-search {
                max-width: none;
                margin: 0 12px;
            }
            .hamburger {
                display: flex;
            }
            .mobile-menu {
                display: block;
            }
            .hero {
                min-height: 70vh;
            }
            .hero .container {
                grid-template-columns: 1fr;
                gap: 32px;
                text-align: center;
                padding-top: 20px;
                padding-bottom: 40px;
            }
            .hero-text {
                max-width: 100%;
            }
            .hero-text h1 {
                font-size: 2rem;
            }
            .hero-text .subtitle {
                font-size: 1rem;
            }
            .hero-actions {
                justify-content: center;
            }
            .hero-visual {
                display: none;
            }
            .scroll-indicator {
                bottom: 16px;
            }
            .section {
                padding: 3.5rem 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .news-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .proof-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .proof-stats {
                gap: 24px;
            }
            .proof-stat .number {
                font-size: 2rem;
            }
            .pricing-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .pricing-card.featured {
                transform: none;
            }
            .pricing-card.featured:hover {
                transform: translateY(-3px);
            }
            footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            footer .footer-brand {
                grid-column: 1 / -1;
            }
            .hero-actions .btn {
                padding: 12px 28px;
                font-size: 0.9rem;
                min-height: 44px;
            }
            .cta-inner h2 {
                font-size: 1.5rem;
            }
            .cta-inner .btn {
                padding: 14px 36px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.95rem;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
            }
            .float-cta {
                width: 48px;
                height: 48px;
                font-size: 1rem;
                bottom: 16px;
                right: 16px;
            }
        }

        /* 手机 480px */
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .logo-main {
                font-size: 1rem;
            }
            .logo-sub {
                font-size: 0.65rem;
            }
            .nav-search input {
                font-size: 0.8rem;
            }
            .hero-text h1 {
                font-size: 1.6rem;
            }
            .hero-text .subtitle {
                font-size: 0.9rem;
                letter-spacing: 0.04em;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .hero-actions .btn {
                width: 100%;
                max-width: 280px;
                justify-content: center;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .feature-card {
                padding: 1.25rem;
            }
            .news-card {
                padding: 1rem 1.25rem;
            }
            .pricing-card {
                padding: 1.5rem 1.25rem;
            }
            .proof-text h2 {
                font-size: 1.5rem;
            }
            .proof-stat .number {
                font-size: 1.75rem;
            }
            footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cta-inner {
                padding: 2.5rem 0;
            }
            .cta-inner h2 {
                font-size: 1.3rem;
            }
            .cta-inner .btn {
                padding: 12px 28px;
                width: 100%;
                max-width: 280px;
                justify-content: center;
            }
            .mobile-menu {
                width: 260px;
                padding: calc(var(--nav-height-mobile) + 16px) 16px 16px;
            }
        }

        /* ===== 工具类 ===== */
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 0.5rem;
        }
        .mt-2 {
            margin-top: 1rem;
        }
        .mt-3 {
            margin-top: 1.5rem;
        }
        .mb-1 {
            margin-bottom: 0.5rem;
        }
        .mb-2 {
            margin-bottom: 1rem;
        }
        .mb-3 {
            margin-bottom: 1.5rem;
        }
        .gap-1 {
            gap: 0.5rem;
        }
        .gap-2 {
            gap: 1rem;
        }

/* roulang page: category1 */
:root {
            --primary: #0c0c14;
            --secondary: #c9a84c;
            --accent: #e8d5a3;
            --bg-deep: #0c0c14;
            --bg-card: #12121c;
            --bg-hover: #1a1a28;
            --text-main: #f5f5f0;
            --text-muted: #a0a0a0;
            --text-dim: #6b6b80;
            --border-color: #2a2a3a;
            --divider: #3a3a4a;
            --error: #e74c3c;
            --success: #27ae60;
            --radius-card: 6px;
            --radius-btn: 4px;
            --radius-search: 24px;
            --radius-input: 8px;
            --shadow-card: 0 4px 20px rgba(0,0,0,0.3);
            --shadow-hover: 0 8px 40px rgba(201,168,76,0.08), 0 0 0 1px rgba(201,168,76,0.15);
            --shadow-btn: 0 2px 12px rgba(201,168,76,0.25);
            --shadow-float: 0 8px 32px rgba(0,0,0,0.5);
            --font-sans: 'Inter', 'Noto Sans SC', 'Helvetica Neue', system-ui, sans-serif;
            --header-height: 72px;
            --max-width: 1200px;
            --gap-section: 4rem;
            --gap-section-mobile: 2.5rem;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            background: var(--primary);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 1rem;
            outline: none;
            border: none;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== Header / Nav ===== */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(12, 12, 20, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            transition: background 0.35s ease;
        }

        header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            display: flex;
            align-items: baseline;
            gap: 2px;
            font-weight: 300;
            color: var(--text-main);
            white-space: nowrap;
        }

        .logo-main {
            font-size: 1.35rem;
            letter-spacing: 0.02em;
        }

        .logo .highlight {
            color: var(--secondary);
        }

        .logo-sub {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-left: 4px;
            font-weight: 400;
        }

        .search-wrap {
            flex: 0 1 40%;
            min-width: 180px;
            max-width: 420px;
            position: relative;
            margin: 0 1rem;
        }

        .search-wrap .search-icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--secondary);
            font-size: 0.9rem;
            pointer-events: none;
        }

        .search-wrap .search-extra {
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            display: flex;
            gap: 10px;
            color: var(--text-muted);
            font-size: 0.85rem;
            pointer-events: none;
        }

        .search-wrap input {
            width: 100%;
            height: 42px;
            padding: 0 60px 0 40px;
            background: var(--bg-hover);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-search);
            color: var(--text-main);
            font-size: 0.9rem;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .search-wrap input::placeholder {
            color: var(--text-dim);
        }

        .search-wrap input:focus {
            border-color: var(--secondary);
            box-shadow: 0 0 0 2px rgba(201, 168, 76, 0.2);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }

        .nav-menu a {
            display: block;
            padding: 0.5rem 1rem;
            font-size: 0.9rem;
            font-weight: 400;
            color: var(--text-muted);
            border-bottom: 2px solid transparent;
            transition: color 0.25s ease, border-color 0.25s ease;
            white-space: nowrap;
        }

        .nav-menu a:hover,
        .nav-menu a:focus-visible {
            color: var(--accent);
        }

        .nav-menu a.active {
            color: var(--text-main);
            border-bottom-color: var(--secondary);
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--text-main);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.25rem;
            line-height: 1;
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-color);
            z-index: 999;
            padding: 0.5rem 0;
            box-shadow: var(--shadow-card);
        }

        .mobile-menu.show {
            display: block;
        }

        .mobile-menu a {
            display: block;
            padding: 0.75rem 1.5rem;
            font-size: 1rem;
            color: var(--text-muted);
            border-left: 3px solid transparent;
            transition: background 0.2s ease, color 0.2s ease;
        }

        .mobile-menu a:hover {
            background: var(--bg-hover);
            color: var(--accent);
        }

        .mobile-menu a.active {
            color: var(--secondary);
            border-left-color: var(--secondary);
            background: rgba(201, 168, 76, 0.06);
        }

        /* ===== Hero ===== */
        .hero-category {
            padding: calc(var(--header-height) + 2rem) 0 3rem;
            background: linear-gradient(135deg, var(--bg-deep) 0%, #16161f 100%);
            position: relative;
            overflow: hidden;
            min-height: 50vh;
            display: flex;
            align-items: center;
        }

        .hero-category::before {
            content: '';
            position: absolute;
            right: 0;
            bottom: 0;
            width: 60%;
            height: 100%;
            background: url('/assets/images/backpic/back-1.png') no-repeat right bottom / cover;
            opacity: 0.12;
            pointer-events: none;
        }

        .hero-category .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
            align-items: center;
        }

        .hero-category-text h1 {
            font-size: 3.25rem;
            font-weight: 300;
            line-height: 1.2;
            letter-spacing: 0.02em;
            color: var(--text-main);
            margin-bottom: 0.75rem;
        }

        .hero-category-text .hero-sub {
            font-size: 1.15rem;
            color: var(--accent);
            font-weight: 400;
            letter-spacing: 0.06em;
            margin-bottom: 1.25rem;
        }

        .hero-category-text p {
            color: var(--text-muted);
            font-size: 1rem;
            margin-bottom: 1.75rem;
            max-width: 480px;
        }

        .hero-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            font-weight: 600;
            border-radius: var(--radius-btn);
            cursor: pointer;
            transition: all 0.25s ease;
            font-size: 1rem;
            padding: 0.75rem 1.75rem;
            min-height: 44px;
            border: none;
            text-align: center;
        }

        .btn-primary {
            background: var(--secondary);
            color: var(--bg-deep);
            box-shadow: var(--shadow-btn);
        }

        .btn-primary:hover {
            background: var(--accent);
            box-shadow: 0 4px 20px rgba(201, 168, 76, 0.35);
            transform: translateY(-1px);
        }

        .btn-outline {
            background: transparent;
            color: var(--secondary);
            border: 1px solid var(--secondary);
        }

        .btn-outline:hover {
            background: rgba(201, 168, 76, 0.08);
            color: var(--accent);
            border-color: var(--accent);
        }

        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-visual .visual-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 1.25rem;
            width: 100%;
            max-width: 400px;
            box-shadow: var(--shadow-card);
        }

        .hero-visual .visual-card img {
            border-radius: 4px;
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
        }

        /* ===== Section通用 ===== */
        section {
            padding: var(--gap-section) 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 2.5rem;
        }

        .section-title h2 {
            font-size: 2.25rem;
            font-weight: 400;
            line-height: 1.3;
            letter-spacing: 0.01em;
            color: var(--text-main);
            margin-bottom: 0.5rem;
        }

        .section-title p {
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto;
        }

        /* ===== 游戏分类筛选 ===== */
        .filter-tabs {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.5rem;
            margin-bottom: 2rem;
        }

        .filter-tab {
            padding: 0.4rem 1.2rem;
            border-radius: 20px;
            border: 1px solid var(--border-color);
            background: transparent;
            color: var(--text-muted);
            font-size: 0.85rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.25s ease;
        }

        .filter-tab:hover {
            border-color: var(--secondary);
            color: var(--accent);
        }

        .filter-tab.active {
            background: var(--secondary);
            color: var(--bg-deep);
            border-color: var(--secondary);
        }

        /* ===== 游戏卡片网格 ===== */
        .game-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .game-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 1.5rem;
            transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
            display: flex;
            flex-direction: column;
        }

        .game-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(201, 168, 76, 0.25);
        }

        .game-card .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: 4px;
            margin-bottom: 1rem;
            background: var(--bg-hover);
        }

        .game-card .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.03em;
            padding: 0.15rem 0.6rem;
            border-radius: 3px;
            background: rgba(201, 168, 76, 0.15);
            color: var(--accent);
            margin-bottom: 0.5rem;
            align-self: flex-start;
        }

        .game-card h3 {
            font-size: 1.25rem;
            font-weight: 500;
            line-height: 1.4;
            margin-bottom: 0.4rem;
            color: var(--text-main);
        }

        .game-card .card-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            flex: 1;
            margin-bottom: 1rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .game-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-dim);
            border-top: 1px solid var(--divider);
            padding-top: 0.75rem;
        }

        .game-card .card-meta .play-btn {
            color: var(--secondary);
            font-weight: 500;
            font-size: 0.85rem;
        }

        .game-card .card-meta .play-btn:hover {
            color: var(--accent);
        }

        /* ===== 服务权益 ===== */
        .benefits-area {
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .benefit-item {
            text-align: center;
            padding: 1.5rem 1rem;
            border-radius: var(--radius-card);
            border: 1px solid transparent;
            transition: border-color 0.3s ease, background 0.3s ease;
        }

        .benefit-item:hover {
            border-color: rgba(201, 168, 76, 0.2);
            background: var(--bg-hover);
        }

        .benefit-item .icon {
            font-size: 2.2rem;
            color: var(--secondary);
            margin-bottom: 1rem;
            display: block;
        }

        .benefit-item h3 {
            font-size: 1.2rem;
            font-weight: 500;
            margin-bottom: 0.5rem;
            color: var(--text-main);
        }

        .benefit-item p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* ===== 游戏流程 ===== */
        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            counter-reset: step;
        }

        .flow-step {
            counter-increment: step;
            text-align: center;
            padding: 1.5rem 1rem;
            position: relative;
        }

        .flow-step::before {
            content: counter(step);
            display: block;
            width: 48px;
            height: 48px;
            line-height: 48px;
            border-radius: 50%;
            background: rgba(201, 168, 76, 0.12);
            color: var(--secondary);
            font-size: 1.2rem;
            font-weight: 600;
            margin: 0 auto 1rem;
            transition: background 0.3s ease, color 0.3s ease;
        }

        .flow-step:hover::before {
            background: var(--secondary);
            color: var(--bg-deep);
        }

        .flow-step h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 0.4rem;
        }

        .flow-step p {
            color: var(--text-muted);
            font-size: 0.85rem;
            line-height: 1.5;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: border-color 0.3s ease;
        }

        .faq-item:hover {
            border-color: rgba(201, 168, 76, 0.2);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 1.25rem;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-main);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            gap: 1rem;
            transition: color 0.2s ease;
        }

        .faq-question:hover {
            color: var(--accent);
        }

        .faq-question .arrow {
            font-size: 0.8rem;
            color: var(--secondary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .arrow {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
        }

        .faq-answer-inner {
            padding: 0 1.25rem 1rem;
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        /* ===== CTA区域 ===== */
        .cta-area {
            background: linear-gradient(135deg, var(--bg-deep) 0%, #1a1a28 100%);
            border-top: 1px solid var(--border-color);
            text-align: center;
            padding: 3.5rem 0;
        }

        .cta-area h2 {
            font-size: 2rem;
            font-weight: 300;
            margin-bottom: 0.75rem;
        }

        .cta-area p {
            color: var(--text-muted);
            font-size: 1.05rem;
            margin-bottom: 1.75rem;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Footer ===== */
        footer {
            background: #0a0a0f;
            border-top: 1px solid var(--border-color);
            padding: 2.5rem 0 1rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-brand .logo {
            margin-bottom: 0.75rem;
            display: inline-flex;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            max-width: 360px;
        }

        .footer-links h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 0.75rem;
        }

        .footer-links a {
            display: block;
            color: var(--text-muted);
            font-size: 0.88rem;
            padding: 0.25rem 0;
            transition: color 0.25s ease;
        }

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

        .footer-social {
            display: flex;
            gap: 1rem;
            margin-top: 0.25rem;
        }

        .footer-social a {
            color: var(--text-dim);
            font-size: 1.2rem;
            transition: color 0.25s ease;
        }

        .footer-social a:hover {
            color: var(--secondary);
        }

        .footer-bottom {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-color);
            color: var(--text-dim);
            font-size: 0.75rem;
        }

        /* ===== 浮动CTA ===== */
        .float-cta {
            position: fixed;
            right: 2rem;
            bottom: 2rem;
            z-index: 100;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--secondary);
            color: var(--bg-deep);
            font-size: 1.4rem;
            box-shadow: var(--shadow-float);
            cursor: pointer;
            transition: background 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
            border: none;
            text-decoration: none;
        }

        .float-cta:hover {
            background: var(--accent);
            transform: scale(1.05);
            box-shadow: 0 10px 40px rgba(201, 168, 76, 0.3);
        }

        .float-cta .label {
            display: none;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 992px) {
            .game-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .benefits-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }

            .flow-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 60px;
                --gap-section: 2.5rem;
            }

            header .container {
                padding: 0 12px;
            }

            .search-wrap {
                flex: 1 1 auto;
                margin: 0 0.5rem;
                max-width: none;
            }

            .nav-menu {
                display: none;
            }

            .hamburger {
                display: block;
            }

            .hero-category {
                min-height: auto;
                padding: calc(var(--header-height) + 1.5rem) 0 2rem;
            }

            .hero-category .container {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .hero-category-text h1 {
                font-size: 2rem;
            }

            .hero-category-text .hero-sub {
                font-size: 1rem;
            }

            .hero-category-text p {
                font-size: 0.92rem;
            }

            .hero-visual .visual-card {
                max-width: 100%;
            }

            .section-title h2 {
                font-size: 1.5rem;
            }

            .game-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            .benefits-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            .flow-steps {
                grid-template-columns: 1fr 1fr;
                gap: 0.75rem;
            }

            .flow-step {
                padding: 1rem 0.5rem;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }

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

            .float-cta {
                width: 48px;
                height: 48px;
                font-size: 1.1rem;
                right: 1rem;
                bottom: 1rem;
            }

            .btn {
                padding: 0.6rem 1.2rem;
                font-size: 0.9rem;
                min-height: 44px;
            }

            .filter-tabs {
                gap: 0.4rem;
            }

            .filter-tab {
                padding: 0.3rem 0.9rem;
                font-size: 0.8rem;
            }
        }

        @media (max-width: 480px) {
            .hero-category-text h1 {
                font-size: 1.6rem;
            }

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

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

            .hero-actions {
                flex-direction: column;
            }

            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #0c0c14;
            --primary-light: #12121c;
            --primary-hover: #1a1a28;
            --gold: #c9a84c;
            --gold-light: #e8d5a3;
            --gold-hover: #dbb95e;
            --text-main: #f5f5f0;
            --text-secondary: #a0a0a0;
            --text-muted: #6b6b80;
            --border-color: #2a2a3a;
            --border-light: #3a3a4a;
            --danger: #e74c3c;
            --success: #27ae60;
            --font-sans: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 24px;
            --radius-input: 8px;
            --shadow-card: 0 4px 20px rgba(0,0,0,0.3);
            --shadow-hover: 0 8px 40px rgba(201,168,76,0.08), 0 0 0 1px rgba(201,168,76,0.15);
            --shadow-btn: 0 2px 12px rgba(201,168,76,0.25);
            --shadow-float: 0 8px 32px rgba(0,0,0,0.5);
            --transition-fast: 0.25s ease;
            --transition-medium: 0.35s ease;
            --max-width: 1200px;
            --nav-height: 72px;
            --nav-height-mobile: 60px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--primary);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        button, input, textarea {
            font-family: inherit;
            font-size: 1rem;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        ul, ol {
            list-style: none;
        }

        h1, h2, h3, h4, h5, h6 {
            font-weight: 400;
            line-height: 1.3;
            color: var(--text-main);
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: transparent;
            transition: background var(--transition-fast), box-shadow var(--transition-fast);
        }

        .site-header.scrolled {
            background: rgba(12,12,20,0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: 0 1px 0 var(--border-color);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            gap: 1.5rem;
        }

        /* Logo */
        .logo {
            display: flex;
            align-items: baseline;
            gap: 2px;
            flex-shrink: 0;
        }

        .logo-main {
            font-size: 1.35rem;
            font-weight: 300;
            color: var(--text-main);
            letter-spacing: 0.02em;
        }

        .logo-main .highlight {
            color: var(--gold);
            font-weight: 500;
        }

        .logo-sub {
            font-size: 0.75rem;
            color: var(--text-muted);
            font-weight: 400;
            letter-spacing: 0.08em;
        }

        /* Search Bar (visual center) */
        .search-wrap {
            flex: 1;
            max-width: 400px;
            display: flex;
            align-items: center;
            background: var(--primary-hover);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            height: 42px;
            padding: 0 4px 0 16px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .search-wrap:focus-within {
            border-color: var(--gold);
            box-shadow: 0 0 0 2px rgba(201,168,76,0.2);
        }

        .search-wrap .search-icon {
            color: var(--gold);
            font-size: 0.9rem;
            margin-right: 10px;
            flex-shrink: 0;
        }

        .search-wrap input {
            flex: 1;
            background: transparent;
            border: none;
            height: 100%;
            color: var(--text-main);
            font-size: 0.875rem;
            padding: 0 8px;
            min-width: 0;
        }

        .search-wrap input::placeholder {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .search-wrap input:focus {
            outline: none;
        }

        .search-actions {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
            padding-right: 4px;
        }

        .search-actions .action-btn {
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            color: var(--text-muted);
            cursor: pointer;
            transition: color var(--transition-fast), background var(--transition-fast);
            font-size: 0.85rem;
        }

        .search-actions .action-btn:hover {
            color: var(--gold-light);
            background: rgba(255,255,255,0.05);
        }

        /* Nav Menu */
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-shrink: 0;
        }

        .nav-menu a {
            padding: 0.4rem 0.9rem;
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 400;
            border-radius: var(--radius-sm);
            transition: color var(--transition-fast), background var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .nav-menu a:hover {
            color: var(--gold-light);
            background: rgba(255,255,255,0.03);
        }

        .nav-menu a.active {
            color: var(--text-main);
        }

        .nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0.9rem;
            right: 0.9rem;
            height: 2px;
            background: var(--gold);
            border-radius: 1px;
        }

        /* Hamburger */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 6px;
            background: none;
            border: none;
            flex-shrink: 0;
        }

        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: transform var(--transition-fast), opacity var(--transition-fast);
        }

        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* Mobile Nav */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--nav-height-mobile);
            left: 0;
            right: 0;
            background: var(--primary-light);
            border-bottom: 1px solid var(--border-color);
            padding: 0.5rem 0;
            z-index: 999;
            transform: translateY(-110%);
            opacity: 0;
            transition: transform 0.35s ease, opacity 0.35s ease;
        }

        .mobile-nav.open {
            transform: translateY(0);
            opacity: 1;
        }

        .mobile-nav a {
            display: block;
            padding: 0.75rem 20px;
            font-size: 1rem;
            color: var(--text-secondary);
            border-left: 3px solid transparent;
            transition: color var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
        }

        .mobile-nav a:hover {
            color: var(--gold-light);
            background: rgba(255,255,255,0.03);
        }

        .mobile-nav a.active {
            color: var(--gold);
            border-left-color: var(--gold);
            background: rgba(201,168,76,0.06);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-wrap {
            padding-top: calc(var(--nav-height) + 1.5rem);
            padding-bottom: 0.75rem;
            background: var(--primary);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.4rem;
            font-size: 0.875rem;
            color: var(--text-muted);
        }

        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb .sep {
            color: var(--border-light);
            font-size: 0.7rem;
        }

        .breadcrumb .current {
            color: var(--text-main);
        }

        /* ===== Article Main ===== */
        .article-main {
            padding: 1.5rem 0 3rem;
        }

        .article-container {
            max-width: 760px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .article-header {
            margin-bottom: 2rem;
            padding-bottom: 1.5rem;
            border-bottom: 1px solid var(--border-color);
        }

        .article-header h1 {
            font-size: 2.5rem;
            font-weight: 300;
            color: var(--text-main);
            line-height: 1.2;
            letter-spacing: 0.01em;
            margin-bottom: 1rem;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem;
            font-size: 0.875rem;
            color: var(--text-muted);
        }

        .article-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .article-meta .meta-item i {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .article-meta .category-tag {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            background: rgba(201,168,76,0.15);
            color: var(--gold-light);
            border-radius: 3px;
            font-size: 0.75rem;
            font-weight: 500;
            letter-spacing: 0.03em;
        }

        /* Article Body */
        .article-body {
            font-size: 1rem;
            line-height: 1.8;
            color: #e5e5e0;
        }

        .article-body p {
            margin-bottom: 1.25rem;
        }

        .article-body h2 {
            font-size: 1.75rem;
            font-weight: 400;
            color: var(--text-main);
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid var(--border-color);
        }

        .article-body h3 {
            font-size: 1.35rem;
            font-weight: 500;
            color: var(--text-main);
            margin: 1.75rem 0 0.75rem;
        }

        .article-body img {
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            margin: 1.5rem auto;
            max-width: 100%;
            height: auto;
        }

        .article-body blockquote {
            border-left: 4px solid var(--gold);
            background: var(--primary-light);
            padding: 1.25rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-secondary);
        }

        .article-body blockquote p:last-child {
            margin-bottom: 0;
        }

        .article-body ul, .article-body ol {
            margin: 1rem 0 1.25rem;
            padding-left: 1.5rem;
        }

        .article-body ul li {
            list-style: disc;
            margin-bottom: 0.4rem;
            color: #d5d5d0;
        }

        .article-body ol li {
            list-style: decimal;
            margin-bottom: 0.4rem;
            color: #d5d5d0;
        }

        .article-body a {
            color: var(--gold);
            border-bottom: 1px solid rgba(201,168,76,0.3);
            transition: border-color var(--transition-fast);
        }

        .article-body a:hover {
            border-bottom-color: var(--gold);
        }

        .article-body code {
            background: var(--primary-hover);
            padding: 0.2rem 0.5rem;
            border-radius: 3px;
            font-size: 0.85rem;
            color: var(--gold-light);
            border: 1px solid var(--border-color);
        }

        .article-body pre {
            background: var(--primary-light);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.25rem;
            overflow-x: auto;
            margin: 1.5rem 0;
        }

        .article-body pre code {
            background: none;
            padding: 0;
            border: none;
            color: var(--text-secondary);
        }

        /* Article Footer */
        .article-footer {
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .article-footer .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.6rem 1.5rem;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-size: 0.9rem;
            transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
            cursor: pointer;
            background: transparent;
        }

        .article-footer .btn-back:hover {
            border-color: var(--gold);
            color: var(--gold-light);
            background: rgba(201,168,76,0.04);
        }

        .article-footer .article-share {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .article-footer .article-share a {
            color: var(--text-muted);
            font-size: 1.1rem;
            transition: color var(--transition-fast);
        }

        .article-footer .article-share a:hover {
            color: var(--gold);
        }

        /* ===== Related Posts ===== */
        .related-section {
            padding: 3rem 0;
            background: var(--primary);
            border-top: 1px solid var(--border-color);
        }

        .related-section .section-title {
            font-size: 1.75rem;
            font-weight: 300;
            color: var(--text-main);
            margin-bottom: 1.5rem;
            text-align: center;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
            max-width: 760px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .related-card {
            background: var(--primary-light);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.25rem;
            transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-medium);
            cursor: pointer;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .related-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(201,168,76,0.25);
        }

        .related-card .related-image {
            width: 100%;
            height: 140px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            background: var(--primary-hover);
        }

        .related-card h4 {
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-main);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card .related-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .related-card .related-meta .tag {
            padding: 0.15rem 0.5rem;
            background: rgba(201,168,76,0.12);
            color: var(--gold-light);
            border-radius: 3px;
            font-size: 0.7rem;
            font-weight: 500;
        }

        /* ===== Not Found ===== */
        .not-found {
            text-align: center;
            padding: 4rem 2rem;
            max-width: 600px;
            margin: 0 auto;
        }

        .not-found .icon {
            font-size: 3rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
        }

        .not-found h2 {
            font-size: 1.5rem;
            font-weight: 400;
            color: var(--text-secondary);
            margin-bottom: 0.75rem;
        }

        .not-found p {
            color: var(--text-muted);
            margin-bottom: 1.5rem;
        }

        .not-found .btn-home {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 2rem;
            background: var(--gold);
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: background var(--transition-fast), box-shadow var(--transition-fast);
        }

        .not-found .btn-home:hover {
            background: var(--gold-hover);
            box-shadow: var(--shadow-btn);
        }

        /* ===== Floating CTA ===== */
        .float-cta {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            z-index: 100;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.8rem 1.6rem;
            background: var(--gold);
            color: var(--primary);
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            box-shadow: var(--shadow-float);
            cursor: pointer;
            transition: background var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
            border: none;
        }

        .float-cta:hover {
            background: var(--gold-light);
            box-shadow: 0 10px 40px rgba(201,168,76,0.35);
            transform: translateY(-2px);
        }

        .float-cta i {
            font-size: 1rem;
        }

        /* ===== Footer ===== */
        footer {
            background: #0a0a0f;
            border-top: 1px solid var(--border-color);
            padding: 3rem 0 1.5rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2rem;
        }

        .footer-brand .logo {
            margin-bottom: 1rem;
        }

        .footer-brand p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 360px;
        }

        .footer-links h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 1rem;
            letter-spacing: 0.03em;
        }

        .footer-links a {
            display: block;
            padding: 0.3rem 0;
            font-size: 0.875rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .footer-social {
            display: flex;
            gap: 0.75rem;
            flex-wrap: wrap;
        }

        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-hover);
            color: var(--text-muted);
            font-size: 1rem;
            transition: color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
        }

        .footer-social a:hover {
            color: var(--gold);
            background: rgba(201,168,76,0.1);
            transform: translateY(-2px);
        }

        .footer-bottom {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-color);
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* ===== Responsive ===== */
        @media (max-width: 768px) {
            :root {
                --nav-height: var(--nav-height-mobile);
            }

            .header-inner {
                padding: 0 16px;
                gap: 0.75rem;
            }

            .logo-main {
                font-size: 1.1rem;
            }

            .logo-sub {
                display: none;
            }

            .search-wrap {
                max-width: none;
                flex: 1;
                height: 38px;
                padding-left: 12px;
            }

            .search-wrap input {
                font-size: 0.8rem;
            }

            .search-actions .action-btn {
                width: 28px;
                height: 28px;
                font-size: 0.75rem;
            }

            .nav-menu {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .mobile-nav {
                display: block;
            }

            .breadcrumb-wrap {
                padding-top: calc(var(--nav-height-mobile) + 1rem);
                padding-bottom: 0.5rem;
            }

            .article-header h1 {
                font-size: 1.65rem;
            }

            .article-container {
                padding: 0 16px;
            }

            .article-body {
                font-size: 0.95rem;
            }

            .article-body h2 {
                font-size: 1.4rem;
            }

            .article-body h3 {
                font-size: 1.15rem;
            }

            .related-grid {
                grid-template-columns: 1fr;
                padding: 0 16px;
            }

            .related-card .related-image {
                height: 120px;
            }

            .float-cta {
                bottom: 1.25rem;
                right: 1.25rem;
                padding: 0;
                width: 48px;
                height: 48px;
                border-radius: 50%;
                justify-content: center;
                font-size: 0;
            }

            .float-cta i {
                font-size: 1.2rem;
            }

            .float-cta span {
                display: none;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }

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

            .footer-brand p {
                max-width: none;
            }

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

        @media (max-width: 480px) {
            .header-inner {
                padding: 0 12px;
                gap: 0.5rem;
            }

            .logo-main {
                font-size: 1rem;
            }

            .search-wrap {
                height: 34px;
                padding-left: 10px;
            }

            .search-wrap .search-icon {
                font-size: 0.75rem;
                margin-right: 6px;
            }

            .search-wrap input {
                font-size: 0.75rem;
            }

            .search-actions .action-btn {
                width: 24px;
                height: 24px;
                font-size: 0.65rem;
            }

            .article-header h1 {
                font-size: 1.4rem;
            }

            .article-meta {
                font-size: 0.8rem;
                gap: 0.6rem;
            }

            .breadcrumb {
                font-size: 0.8rem;
            }

            .related-card {
                padding: 1rem;
            }

            .related-card .related-image {
                height: 100px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }

            .float-cta {
                bottom: 1rem;
                right: 1rem;
                width: 44px;
                height: 44px;
            }

            .not-found {
                padding: 2.5rem 1.25rem;
            }

            .not-found .icon {
                font-size: 2.5rem;
            }
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 6px;
            height: 6px;
        }

        ::-webkit-scrollbar-track {
            background: var(--primary);
        }

        ::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 3px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--border-light);
        }

        /* ===== Focus visible ===== */
        a:focus-visible, button:focus-visible, input:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 2px;
        }

        /* ===== Selection ===== */
        ::selection {
            background: rgba(201,168,76,0.25);
            color: var(--text-main);
        }

/* roulang page: category2 */
:root {
            --primary: #0c0c14;
            --secondary: #c9a84c;
            --accent: #e8d5a3;
            --bg-deep: #0c0c14;
            --bg-card: #12121c;
            --bg-hover: #1a1a28;
            --text-main: #f5f5f0;
            --text-muted: #a0a0a0;
            --text-dim: #6b6b80;
            --border-color: #2a2a3a;
            --divider: #3a3a4a;
            --error: #e74c3c;
            --success: #27ae60;
            --radius-card: 6px;
            --radius-btn: 4px;
            --radius-search: 24px;
            --radius-input: 8px;
            --shadow-card: 0 4px 20px rgba(0,0,0,0.3);
            --shadow-hover: 0 8px 40px rgba(201,168,76,0.08), 0 0 0 1px rgba(201,168,76,0.15);
            --shadow-btn: 0 2px 12px rgba(201,168,76,0.25);
            --shadow-float: 0 8px 32px rgba(0,0,0,0.5);
            --font-sans: 'Noto Sans SC', 'Source Han Sans SC', 'Inter', 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --nav-height: 72px;
            --nav-height-mobile: 60px;
            --transition: 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.7;
            font-weight: 400;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: transparent;
            color: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            height: var(--nav-height);
            transition: background var(--transition), box-shadow var(--transition);
            background: transparent;
        }

        .site-header.scrolled {
            background: rgba(12, 12, 20, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: 0 1px 0 var(--border-color);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 16px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        .logo {
            display: flex;
            align-items: baseline;
            gap: 2px;
            font-weight: 300;
            color: var(--text-main);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .logo-main {
            font-size: 1.35rem;
            font-weight: 300;
            letter-spacing: 0.02em;
        }

        .logo .highlight {
            color: var(--secondary);
            font-weight: 400;
        }

        .logo-sub {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-left: 4px;
            font-weight: 300;
            letter-spacing: 0.04em;
        }

        .nav-search {
            flex: 1;
            max-width: 420px;
            margin: 0 16px;
            position: relative;
        }

        .nav-search .search-wrapper {
            display: flex;
            align-items: center;
            background: var(--bg-hover);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-search);
            height: 42px;
            padding: 0 16px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .nav-search .search-wrapper:focus-within {
            border-color: var(--secondary);
            box-shadow: 0 0 0 2px rgba(201, 168, 76, 0.2);
        }

        .nav-search .search-icon {
            color: var(--secondary);
            font-size: 0.9rem;
            margin-right: 10px;
            flex-shrink: 0;
        }

        .nav-search input {
            flex: 1;
            background: transparent;
            border: none;
            color: var(--text-main);
            font-size: 0.9rem;
            height: 100%;
            padding: 0;
        }

        .nav-search input::placeholder {
            color: var(--text-dim);
            font-size: 0.85rem;
        }

        .nav-search .search-extra {
            display: flex;
            gap: 8px;
            color: var(--text-muted);
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .nav-search .search-extra i {
            cursor: pointer;
            transition: color var(--transition);
        }

        .nav-search .search-extra i:hover {
            color: var(--accent);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 24px;
            flex-shrink: 0;
        }

        .nav-menu a {
            font-size: 0.9rem;
            font-weight: 400;
            color: var(--text-muted);
            transition: color var(--transition);
            position: relative;
            padding: 4px 0;
            letter-spacing: 0.02em;
        }

        .nav-menu a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary);
            transition: width var(--transition);
            border-radius: 1px;
        }

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

        .nav-menu a:hover::after {
            width: 100%;
        }

        .nav-menu a.active {
            color: var(--text-main);
        }

        .nav-menu a.active::after {
            width: 100%;
            background: var(--secondary);
        }

        .nav-toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--text-main);
            cursor: pointer;
            background: none;
            border: none;
            padding: 4px;
            flex-shrink: 0;
        }

        /* ===== Mobile Nav ===== */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--nav-height-mobile);
            left: 0;
            width: 100%;
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-color);
            z-index: 999;
            padding: 12px 20px;
            flex-direction: column;
            gap: 8px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
        }

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

        .mobile-nav a {
            display: block;
            padding: 12px 16px;
            font-size: 1rem;
            color: var(--text-muted);
            border-radius: var(--radius-card);
            transition: background var(--transition), color var(--transition);
        }

        .mobile-nav a:hover,
        .mobile-nav a.active {
            background: var(--bg-hover);
            color: var(--text-main);
        }

        .mobile-nav a.active {
            border-left: 3px solid var(--secondary);
            color: var(--accent);
        }

        /* ===== Hero ===== */
        .category-hero {
            position: relative;
            padding: 140px 0 80px;
            background: var(--bg-deep);
            overflow: hidden;
            min-height: 50vh;
            display: flex;
            align-items: center;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            opacity: 0.12;
            z-index: 0;
        }

        .category-hero .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .category-hero h1 {
            font-size: 3.25rem;
            font-weight: 300;
            line-height: 1.2;
            letter-spacing: 0.02em;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .category-hero h1 .highlight {
            color: var(--secondary);
            font-weight: 400;
        }

        .category-hero .hero-sub {
            font-size: 1.15rem;
            color: var(--accent);
            font-weight: 400;
            letter-spacing: 0.06em;
            margin-bottom: 24px;
        }

        .category-hero .hero-desc {
            max-width: 640px;
            margin: 0 auto 32px;
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1.8;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 40px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius-btn);
            cursor: pointer;
            transition: all var(--transition);
            border: 1px solid transparent;
            min-height: 50px;
            letter-spacing: 0.02em;
        }

        .btn-primary {
            background: var(--secondary);
            color: var(--bg-deep);
            box-shadow: var(--shadow-btn);
        }

        .btn-primary:hover {
            background: var(--accent);
            box-shadow: 0 4px 20px rgba(201, 168, 76, 0.4);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(201, 168, 76, 0.2);
        }

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

        .btn-outline:hover {
            background: rgba(201, 168, 76, 0.08);
            color: var(--accent);
            border-color: var(--accent);
        }

        .btn-outline:active {
            background: rgba(201, 168, 76, 0.15);
        }

        .btn-sm {
            padding: 10px 24px;
            font-size: 0.9rem;
            min-height: 42px;
        }

        /* ===== Section通用 ===== */
        .section {
            padding: 6rem 0;
        }

        .section-title {
            font-size: 2.25rem;
            font-weight: 400;
            line-height: 1.3;
            letter-spacing: 0.01em;
            text-align: center;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .section-sub {
            text-align: center;
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 600px;
            margin: 0 auto 48px;
            line-height: 1.7;
        }

        .section-sub strong {
            color: var(--accent);
            font-weight: 500;
        }

        /* ===== 地址卡片区块 ===== */
        .address-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .address-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 2rem 1.5rem;
            transition: all 0.35s ease;
            text-align: center;
        }

        .address-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(201, 168, 76, 0.3);
        }

        .address-card .card-icon {
            font-size: 2.2rem;
            color: var(--secondary);
            margin-bottom: 16px;
            display: block;
        }

        .address-card h3 {
            font-size: 1.25rem;
            font-weight: 500;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .address-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .address-card .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            background: rgba(201, 168, 76, 0.15);
            color: var(--accent);
        }

        .address-card .badge.success {
            background: rgba(39, 174, 96, 0.15);
            color: var(--success);
        }

        .address-card .badge.warning {
            background: rgba(231, 76, 60, 0.15);
            color: var(--error);
        }

        /* ===== 三步流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            counter-reset: step;
        }

        .step-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 2rem 1.5rem;
            text-align: center;
            transition: all 0.35s ease;
            position: relative;
        }

        .step-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(201, 168, 76, 0.2);
        }

        .step-item::before {
            counter-increment: step;
            content: counter(step);
            display: block;
            width: 48px;
            height: 48px;
            line-height: 48px;
            text-align: center;
            border-radius: 50%;
            background: rgba(201, 168, 76, 0.12);
            color: var(--secondary);
            font-size: 1.3rem;
            font-weight: 500;
            margin: 0 auto 16px;
        }

        .step-item h3 {
            font-size: 1.15rem;
            font-weight: 500;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .step-item p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* ===== 安全认证 ===== */
        .trust-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .trust-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 1.5rem 1rem;
            text-align: center;
            transition: all 0.35s ease;
        }

        .trust-item:hover {
            border-color: rgba(201, 168, 76, 0.25);
            box-shadow: var(--shadow-hover);
        }

        .trust-item .trust-icon {
            font-size: 2rem;
            color: var(--secondary);
            margin-bottom: 12px;
            display: block;
        }

        .trust-item .trust-number {
            font-size: 2.2rem;
            font-weight: 300;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .trust-item .trust-label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

        .faq-item:hover {
            border-color: rgba(201, 168, 76, 0.2);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-main);
            transition: color var(--transition);
            user-select: none;
        }

        .faq-question:hover {
            color: var(--accent);
        }

        .faq-question .faq-arrow {
            font-size: 0.8rem;
            color: var(--secondary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
            margin-left: 12px;
        }

        .faq-item.open .faq-question .faq-arrow {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 20px;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            text-align: center;
            padding: 5rem 0;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 400;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .cta-section p {
            color: var(--text-muted);
            max-width: 520px;
            margin: 0 auto 28px;
            font-size: 1rem;
        }

        /* ===== Footer ===== */
        footer {
            background: #0a0a0f;
            border-top: 1px solid var(--border-color);
            padding: 4rem 0 2rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }

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

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 360px;
        }

        .footer-links h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .footer-links a {
            display: block;
            color: var(--text-muted);
            font-size: 0.9rem;
            padding: 6px 0;
            transition: color var(--transition);
        }

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

        .footer-social {
            display: flex;
            gap: 16px;
            margin-top: 8px;
        }

        .footer-social a {
            color: var(--text-dim);
            font-size: 1.3rem;
            transition: color var(--transition);
        }

        .footer-social a:hover {
            color: var(--secondary);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 24px;
            text-align: center;
            color: var(--text-dim);
            font-size: 0.75rem;
            letter-spacing: 0.02em;
        }

        /* ===== Float CTA ===== */
        .float-cta {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            z-index: 100;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--secondary);
            color: var(--bg-deep);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: var(--shadow-float);
            cursor: pointer;
            transition: all var(--transition);
            border: none;
        }

        .float-cta:hover {
            background: var(--accent);
            box-shadow: 0 12px 40px rgba(201, 168, 76, 0.35);
            transform: scale(1.05);
        }

        .float-cta:active {
            transform: scale(0.95);
        }

        /* ===== 地址列表表格 ===== */
        .address-table-wrap {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
        }

        .address-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.92rem;
        }

        .address-table th {
            background: var(--bg-hover);
            color: var(--text-muted);
            font-weight: 500;
            text-align: left;
            padding: 14px 20px;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.85rem;
            letter-spacing: 0.04em;
        }

        .address-table td {
            padding: 14px 20px;
            border-bottom: 1px solid var(--border-color);
            color: var(--text-main);
        }

        .address-table tr:last-child td {
            border-bottom: none;
        }

        .address-table tr:hover td {
            background: rgba(201, 168, 76, 0.03);
        }

        .address-table .status-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            margin-right: 8px;
        }

        .address-table .status-dot.online {
            background: var(--success);
        }

        .address-table .status-dot.offline {
            background: var(--error);
        }

        .address-table .copy-btn {
            padding: 4px 14px;
            border-radius: 4px;
            font-size: 0.8rem;
            background: rgba(201, 168, 76, 0.12);
            color: var(--secondary);
            border: 1px solid transparent;
            cursor: pointer;
            transition: all var(--transition);
        }

        .address-table .copy-btn:hover {
            background: rgba(201, 168, 76, 0.2);
            border-color: var(--secondary);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .address-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .trust-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

        @media (max-width: 768px) {
            :root {
                --nav-height: var(--nav-height-mobile);
            }

            .site-header {
                height: var(--nav-height-mobile);
            }

            .header-inner {
                height: var(--nav-height-mobile);
            }

            .nav-menu {
                display: none;
            }

            .nav-toggle {
                display: block;
            }

            .nav-search {
                max-width: none;
                margin: 0 8px;
            }

            .nav-search .search-wrapper {
                height: 38px;
            }

            .nav-search input {
                font-size: 0.85rem;
            }

            .nav-search .search-extra {
                display: none;
            }

            .category-hero {
                padding: 100px 0 60px;
                min-height: auto;
            }

            .category-hero h1 {
                font-size: 2rem;
            }

            .category-hero .hero-sub {
                font-size: 1rem;
            }

            .section {
                padding: 3.5rem 0;
            }

            .section-title {
                font-size: 1.5rem;
            }

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

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

            .trust-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .trust-item .trust-number {
                font-size: 1.6rem;
            }

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

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

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

            .btn {
                width: 100%;
                max-width: 320px;
            }

            .float-cta {
                width: 48px;
                height: 48px;
                font-size: 1.1rem;
                bottom: 1.2rem;
                right: 1.2rem;
            }

            .address-table th,
            .address-table td {
                padding: 10px 12px;
                font-size: 0.8rem;
            }

            .address-table .copy-btn {
                padding: 2px 10px;
                font-size: 0.7rem;
            }
        }

        @media (max-width: 480px) {
            .category-hero h1 {
                font-size: 1.7rem;
            }

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

            .address-card {
                padding: 1.2rem 1rem;
            }

            .step-item {
                padding: 1.2rem 1rem;
            }

            .faq-question {
                padding: 14px 16px;
                font-size: 0.92rem;
            }

            .faq-answer {
                font-size: 0.85rem;
            }
        }

/* roulang page: category3 */
/* ===== Design Variables ===== */
        :root {
            --primary: #0c0c14;
            --secondary: #c9a84c;
            --accent: #e8d5a3;
            --bg-deep: #0c0c14;
            --bg-card: #12121c;
            --bg-hover: #1a1a28;
            --text-main: #f5f5f0;
            --text-sub: #a0a0a0;
            --text-muted: #6b6b80;
            --border-color: #2a2a3a;
            --divider: #3a3a4a;
            --error: #e74c3c;
            --success: #27ae60;
            --font-cn: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-en: 'Inter', 'Helvetica Neue', Arial, sans-serif;
            --shadow-card: 0 4px 20px rgba(0,0,0,0.3);
            --shadow-hover: 0 8px 40px rgba(201,168,76,0.08);
            --shadow-btn: 0 2px 12px rgba(201,168,76,0.25);
            --radius-btn: 4px;
            --radius-card: 6px;
            --radius-input: 8px;
            --radius-search: 24px;
            --nav-height: 72px;
            --nav-height-mobile: 60px;
            --max-width: 1200px;
            --gutter: 20px;
            --section-gap: 4rem;
            --section-gap-mobile: 2.5rem;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: var(--font-cn);
            background: var(--primary);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a { color: inherit; text-decoration: none; transition: color 0.25s ease; }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; background: none; color: inherit; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-weight: normal; }

        /* ===== Container ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--gutter);
            width: 100%;
        }

        /* ===== Header / Nav ===== */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: transparent;
            transition: background 0.35s ease, box-shadow 0.35s ease;
            display: flex;
            align-items: center;
        }
        header.scrolled {
            background: rgba(12,12,20,0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: 0 1px 0 var(--border-color);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--gutter);
            gap: 1rem;
        }
        .logo {
            display: flex;
            align-items: baseline;
            gap: 0.15rem;
            flex-shrink: 0;
            font-family: var(--font-cn);
        }
        .logo-main {
            font-size: 1.35rem;
            font-weight: 300;
            color: var(--text-main);
            letter-spacing: 0.02em;
        }
        .logo-main .highlight {
            color: var(--secondary);
            font-weight: 500;
        }
        .logo-sub {
            font-size: 0.85rem;
            color: var(--text-sub);
            font-weight: 300;
            letter-spacing: 0.04em;
        }
        .logo-sub::before { content: ''; }

        /* Search (nav center) */
        .nav-search {
            flex: 1;
            max-width: 420px;
            margin: 0 1.5rem;
            position: relative;
            display: flex;
            align-items: center;
        }
        .nav-search .search-icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--secondary);
            font-size: 0.9rem;
            pointer-events: none;
        }
        .nav-search input {
            width: 100%;
            height: 42px;
            background: var(--bg-hover);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-search);
            padding: 0 44px 0 42px;
            font-size: 0.9rem;
            color: var(--text-main);
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }
        .nav-search input::placeholder {
            color: var(--text-muted);
            font-weight: 300;
        }
        .nav-search input:focus {
            border-color: var(--secondary);
            box-shadow: 0 0 0 2px rgba(201,168,76,0.2);
            background: var(--bg-card);
        }
        .nav-search .search-extra {
            position: absolute;
            right: 12px;
            top: 50%;
            transform: translateY(-50%);
            display: flex;
            gap: 8px;
            color: var(--text-sub);
            font-size: 0.85rem;
            pointer-events: none;
        }
        .nav-search .search-extra i { cursor: pointer; transition: color 0.25s; }
        .nav-search .search-extra i:hover { color: var(--accent); }

        /* Nav Menu */
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 1.8rem;
            flex-shrink: 0;
        }
        .nav-menu a {
            font-size: 0.95rem;
            color: var(--text-sub);
            font-weight: 400;
            position: relative;
            padding: 0.25rem 0;
            transition: color 0.25s ease;
            letter-spacing: 0.01em;
        }
        .nav-menu a:hover { color: var(--accent); }
        .nav-menu a.active {
            color: var(--text-main);
        }
        .nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--secondary);
            border-radius: 1px;
        }

        /* Hamburger (mobile) */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 4px;
            background: none;
            border: none;
            flex-shrink: 0;
        }
        .hamburger span {
            width: 24px;
            height: 2px;
            background: var(--text-sub);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
        .hamburger.active span:nth-child(2) { opacity: 0; }
        .hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

        /* Mobile Nav Overlay */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--nav-height-mobile);
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
            z-index: 999;
            padding: 1.5rem var(--gutter);
            overflow-y: auto;
            flex-direction: column;
            gap: 0.5rem;
            transform: translateY(-10px);
            opacity: 0;
            transition: opacity 0.3s ease, transform 0.3s ease;
            pointer-events: none;
        }
        .mobile-nav.open {
            transform: translateY(0);
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-nav a {
            display: block;
            padding: 0.85rem 0.5rem;
            font-size: 1.05rem;
            color: var(--text-sub);
            border-bottom: 1px solid var(--divider);
            transition: color 0.25s;
        }
        .mobile-nav a:hover { color: var(--accent); }
        .mobile-nav a.active { color: var(--secondary); font-weight: 500; }

        /* ===== Hero (inner page) ===== */
        .page-hero {
            padding: calc(var(--nav-height) + 3rem) 0 3rem;
            background: linear-gradient(135deg, var(--bg-deep) 0%, #16161f 100%);
            position: relative;
            overflow: hidden;
            min-height: 280px;
            display: flex;
            align-items: center;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') no-repeat center center / cover;
            opacity: 0.08;
            pointer-events: none;
        }
        .page-hero .hero-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }
        .page-hero h1 {
            font-size: 3.25rem;
            font-weight: 300;
            line-height: 1.2;
            letter-spacing: 0.02em;
            color: var(--text-main);
            margin-bottom: 0.75rem;
        }
        .page-hero .hero-sub {
            font-size: 1.15rem;
            color: var(--accent);
            font-weight: 400;
            letter-spacing: 0.06em;
        }
        .page-hero .hero-breadcrumb {
            margin-bottom: 1.5rem;
            font-size: 0.875rem;
            color: var(--text-sub);
        }
        .page-hero .hero-breadcrumb a { color: var(--text-sub); }
        .page-hero .hero-breadcrumb a:hover { color: var(--accent); }
        .page-hero .hero-breadcrumb span { color: var(--text-main); }

        /* ===== Sections ===== */
        section {
            padding: var(--section-gap) 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-title h2 {
            font-size: 2.25rem;
            font-weight: 400;
            line-height: 1.3;
            letter-spacing: 0.01em;
            color: var(--text-main);
        }
        .section-title .section-desc {
            color: var(--text-sub);
            font-size: 1.05rem;
            margin-top: 0.5rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== About Intro ===== */
        .about-intro {
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }
        .about-text h3 {
            font-size: 1.5rem;
            font-weight: 500;
            margin-bottom: 1rem;
            color: var(--text-main);
        }
        .about-text p {
            color: var(--text-sub);
            margin-bottom: 1.25rem;
            line-height: 1.8;
        }
        .about-text ul {
            margin-top: 1rem;
        }
        .about-text ul li {
            color: var(--text-sub);
            padding-left: 1.5rem;
            position: relative;
            margin-bottom: 0.5rem;
            line-height: 1.6;
        }
        .about-text ul li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--secondary);
            font-weight: 600;
        }
        .about-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            background: var(--bg-hover);
        }
        .about-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 320px;
        }

        /* ===== Timeline / History ===== */
        .history-section {
            background: var(--bg-deep);
        }
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding-left: 2rem;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--divider);
        }
        .timeline-item {
            position: relative;
            padding: 0 0 2.5rem 2rem;
        }
        .timeline-item:last-child { padding-bottom: 0; }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -1.85rem;
            top: 0.3rem;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--secondary);
            border: 3px solid var(--bg-deep);
            box-shadow: 0 0 0 2px var(--secondary);
        }
        .timeline-item .year {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 0.25rem;
        }
        .timeline-item .title {
            font-size: 1.1rem;
            font-weight: 500;
            color: var(--text-main);
            margin-bottom: 0.25rem;
        }
        .timeline-item .desc {
            color: var(--text-sub);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        /* ===== Core Values ===== */
        .values-section {
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .values-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }
        .value-card {
            background: var(--bg-deep);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 2rem 1.5rem;
            text-align: center;
            transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
        }
        .value-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover), 0 0 0 1px rgba(201,168,76,0.15);
            border-color: rgba(201,168,76,0.3);
        }
        .value-card .icon {
            font-size: 2.5rem;
            color: var(--secondary);
            margin-bottom: 1rem;
            display: block;
        }
        .value-card h4 {
            font-size: 1.125rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--text-main);
        }
        .value-card p {
            color: var(--text-sub);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        /* ===== Team / Members ===== */
        .team-section {
            background: var(--bg-deep);
        }
        .team-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
        }
        .team-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 1.5rem;
            text-align: center;
            transition: transform 0.35s ease, box-shadow 0.35s ease;
        }
        .team-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }
        .team-card .avatar {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: var(--bg-hover);
            margin: 0 auto 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.2rem;
            color: var(--secondary);
            border: 2px solid var(--border-color);
        }
        .team-card h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-main);
        }
        .team-card .role {
            font-size: 0.85rem;
            color: var(--secondary);
            margin: 0.25rem 0 0.5rem;
        }
        .team-card p {
            font-size: 0.9rem;
            color: var(--text-sub);
            line-height: 1.5;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .faq-item {
            background: var(--bg-deep);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: border-color 0.25s ease;
        }
        .faq-item:hover { border-color: rgba(201,168,76,0.2); }
        .faq-question {
            padding: 1.25rem 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-main);
            transition: color 0.25s;
            user-select: none;
        }
        .faq-question:hover { color: var(--accent); }
        .faq-question .arrow {
            font-size: 0.85rem;
            color: var(--secondary);
            transition: transform 0.35s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .arrow {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 1.5rem;
            color: var(--text-sub);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 1.5rem 1.25rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-deep);
            text-align: center;
            padding: 4rem 0;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 300;
            margin-bottom: 0.75rem;
        }
        .cta-section p {
            color: var(--text-sub);
            font-size: 1.05rem;
            margin-bottom: 2rem;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-group {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 14px 40px;
            border-radius: var(--radius-btn);
            font-size: 1rem;
            font-weight: 600;
            transition: all 0.25s ease;
            cursor: pointer;
            border: none;
            line-height: 1;
            min-height: 48px;
        }
        .btn-primary {
            background: var(--secondary);
            color: var(--primary);
            box-shadow: var(--shadow-btn);
        }
        .btn-primary:hover {
            background: var(--accent);
            box-shadow: 0 4px 20px rgba(201,168,76,0.35);
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            color: var(--secondary);
            border: 1px solid var(--secondary);
        }
        .btn-outline:hover {
            background: rgba(201,168,76,0.08);
            color: var(--accent);
            border-color: var(--accent);
        }

        /* ===== Footer ===== */
        footer {
            background: #0a0a0f;
            border-top: 1px solid var(--border-color);
            padding: 3rem 0 1.5rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2rem;
        }
        .footer-brand .logo {
            margin-bottom: 1rem;
        }
        .footer-brand p {
            color: var(--text-sub);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-links h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 1rem;
        }
        .footer-links a {
            display: block;
            color: var(--text-sub);
            font-size: 0.9rem;
            padding: 0.35rem 0;
            transition: color 0.25s;
        }
        .footer-links a:hover { color: var(--accent); }
        .footer-social {
            display: flex;
            gap: 1rem;
            margin-top: 0.5rem;
        }
        .footer-social a {
            color: var(--text-muted);
            font-size: 1.3rem;
            padding: 0.25rem;
            transition: color 0.25s, transform 0.25s;
        }
        .footer-social a:hover { color: var(--secondary); transform: translateY(-2px); }
        .footer-bottom {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid var(--divider);
            color: var(--text-muted);
            font-size: 0.8rem;
        }

        /* ===== Floating CTA ===== */
        .float-cta {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            z-index: 100;
            background: var(--secondary);
            color: var(--primary);
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
            box-shadow: 0 8px 32px rgba(0,0,0,0.5), 0 2px 12px rgba(201,168,76,0.25);
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
        }
        .float-cta:hover {
            background: var(--accent);
            box-shadow: 0 8px 40px rgba(201,168,76,0.35);
            transform: scale(1.05);
        }
        .float-cta .label {
            display: none;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .nav-menu { gap: 1.2rem; }
            .nav-menu a { font-size: 0.9rem; }
            .nav-search { max-width: 300px; }
            .team-grid { grid-template-columns: repeat(2, 1fr); }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: var(--nav-height-mobile);
                --section-gap: var(--section-gap-mobile);
            }
            .nav-menu { display: none; }
            .nav-search { max-width: none; margin: 0 0.75rem; }
            .hamburger { display: flex; }
            .mobile-nav { display: flex; }
            .header-inner { padding: 0 0.75rem; }
            .page-hero h1 { font-size: 2rem; }
            .page-hero { padding: calc(var(--nav-height) + 2rem) 0 2rem; min-height: 220px; }
            .about-grid { grid-template-columns: 1fr; gap: 2rem; }
            .about-image { order: -1; }
            .about-image img { min-height: 240px; }
            .values-grid { grid-template-columns: 1fr; gap: 1.25rem; }
            .team-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
            .team-card { padding: 1rem; }
            .team-card .avatar { width: 60px; height: 60px; font-size: 1.6rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
            .section-title h2 { font-size: 1.5rem; }
            .btn { padding: 12px 28px; min-height: 44px; font-size: 0.95rem; }
            .float-cta { width: 48px; height: 48px; font-size: 1.1rem; bottom: 1.25rem; right: 1.25rem; }
            .timeline { padding-left: 1.5rem; }
            .timeline-item { padding: 0 0 2rem 1.5rem; }
            .timeline-item::before { left: -1.35rem; width: 12px; height: 12px; }
        }

        @media (max-width: 480px) {
            .page-hero h1 { font-size: 1.6rem; }
            .team-grid { grid-template-columns: 1fr 1fr; gap: 0.75rem; }
            .team-card .avatar { width: 48px; height: 48px; font-size: 1.2rem; }
            .btn-group { flex-direction: column; align-items: center; }
            .btn { width: 100%; max-width: 260px; }
        }