/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #1a0a3e;
            --color-primary-light: #2d1b69;
            --color-primary-dark: #0f0520;
            --color-accent: #d4a84b;
            --color-accent-light: #e8c56d;
            --color-accent-dark: #b8892e;
            --color-bg: #f9f8fc;
            --color-bg-alt: #f0eef8;
            --color-bg-card: #ffffff;
            --color-text: #1a1a2e;
            --color-text-light: #6b7280;
            --color-text-white: #ffffff;
            --color-border: #e5e0f0;
            --color-border-light: #f0edf6;
            --color-success: #10b981;
            --color-warning: #f59e0b;
            --color-error: #ef4444;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(26, 10, 62, 0.06);
            --shadow-md: 0 8px 24px rgba(26, 10, 62, 0.10);
            --shadow-lg: 0 16px 48px rgba(26, 10, 62, 0.14);
            --shadow-glow: 0 0 30px rgba(212, 168, 75, 0.20);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --spacing-section: 80px;
            --max-width: 1200px;
            --header-height: 72px;
            --bottom-nav-height: 64px;
        }

        /* ===== 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: 16px;
            line-height: 1.6;
            color: var(--color-text);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
            padding-bottom: var(--bottom-nav-height);
        }
        @media (min-width: 769px) {
            body {
                padding-bottom: 0;
            }
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
            border-radius: 4px;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            transition: var(--transition);
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--color-primary);
        }
        h1 {
            font-size: clamp(2rem, 5vw, 3.2rem);
        }
        h2 {
            font-size: clamp(1.5rem, 3.5vw, 2.2rem);
            margin-bottom: 16px;
        }
        h3 {
            font-size: clamp(1.1rem, 2vw, 1.4rem);
        }
        p {
            margin-bottom: 12px;
            color: var(--color-text-light);
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            :root {
                --spacing-section: 48px;
            }
        }

        /* ===== Section ===== */
        .section {
            padding: var(--spacing-section) 0;
        }
        .section-alt {
            background: var(--color-bg-alt);
        }
        .section-dark {
            background: var(--color-primary);
            color: var(--color-text-white);
        }
        .section-dark h2,
        .section-dark h3 {
            color: var(--color-text-white);
        }
        .section-dark p {
            color: rgba(255, 255, 255, 0.75);
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            color: var(--color-accent);
            background: rgba(212, 168, 75, 0.12);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
        }
        .section-title {
            text-align: center;
            margin-bottom: 12px;
        }
        .section-subtitle {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 40px;
            font-size: 1.05rem;
        }

        /* ===== Header / Top Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: 0 1px 12px rgba(26, 10, 62, 0.04);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.02em;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 1.2rem;
            font-weight: 900;
            box-shadow: 0 4px 12px rgba(26, 10, 62, 0.20);
        }
        .logo span {
            color: var(--color-accent);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.92rem;
            color: var(--color-text-light);
            transition: var(--transition);
            position: relative;
        }
        .main-nav a:hover {
            color: var(--color-primary);
            background: rgba(26, 10, 62, 0.05);
        }
        .main-nav a.active {
            color: var(--color-primary);
            background: rgba(26, 10, 62, 0.06);
            font-weight: 600;
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 4px;
        }
        .nav-cta {
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark)) !important;
            color: var(--color-primary-dark) !important;
            font-weight: 700 !important;
            padding: 8px 22px !important;
            border-radius: 24px !important;
            box-shadow: var(--shadow-glow);
        }
        .nav-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(212, 168, 75, 0.35) !important;
            background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent)) !important;
        }
        .nav-toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--color-primary);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            background: rgba(26, 10, 62, 0.04);
        }
        @media (max-width: 768px) {
            .site-header .main-nav {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .site-header .container {
                padding: 0 16px;
            }
        }

        /* ===== Mobile Bottom Tab Nav ===== */
        .bottom-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--bottom-nav-height);
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--color-border-light);
            box-shadow: 0 -2px 16px rgba(26, 10, 62, 0.06);
            align-items: center;
            justify-content: space-around;
            padding: 0 8px;
            padding-bottom: env(safe-area-inset-bottom, 0);
        }
        .bottom-nav a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            font-size: 0.7rem;
            font-weight: 500;
            color: var(--color-text-light);
            transition: var(--transition);
            min-width: 56px;
        }
        .bottom-nav a i {
            font-size: 1.25rem;
            transition: var(--transition);
        }
        .bottom-nav a:hover {
            color: var(--color-primary);
            background: rgba(26, 10, 62, 0.04);
        }
        .bottom-nav a.active {
            color: var(--color-accent-dark);
        }
        .bottom-nav a.active i {
            color: var(--color-accent);
        }
        @media (max-width: 768px) {
            .bottom-nav {
                display: flex;
            }
        }

        /* ===== Mobile Drawer ===== */
        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -100%;
            width: 280px;
            height: 100%;
            z-index: 1100;
            background: var(--color-bg-card);
            box-shadow: -8px 0 40px rgba(26, 10, 62, 0.15);
            padding: 24px 20px;
            transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .mobile-drawer.open {
            right: 0;
        }
        .drawer-overlay {
            position: fixed;
            inset: 0;
            z-index: 1050;
            background: rgba(26, 10, 62, 0.4);
            opacity: 0;
            pointer-events: none;
            transition: var(--transition);
        }
        .drawer-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }
        .drawer-close {
            align-self: flex-end;
            font-size: 1.5rem;
            color: var(--color-text-light);
            padding: 4px 8px;
            border-radius: var(--radius-sm);
        }
        .drawer-close:hover {
            background: rgba(26, 10, 62, 0.06);
        }
        .mobile-drawer a {
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            color: var(--color-text);
            transition: var(--transition);
        }
        .mobile-drawer a:hover {
            background: rgba(26, 10, 62, 0.05);
        }
        .mobile-drawer a.active {
            background: rgba(212, 168, 75, 0.12);
            color: var(--color-accent-dark);
            font-weight: 600;
        }
        .mobile-drawer .nav-cta {
            margin-top: 8px;
            text-align: center;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            background: var(--color-primary-dark);
            overflow: hidden;
            padding: 60px 0;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.35;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 10, 62, 0.92) 0%, rgba(26, 10, 62, 0.70) 60%, rgba(26, 10, 62, 0.50) 100%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-content {
            max-width: 700px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(212, 168, 75, 0.15);
            color: var(--color-accent-light);
            padding: 6px 18px;
            border-radius: 24px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
            border: 1px solid rgba(212, 168, 75, 0.20);
        }
        .hero-badge i {
            font-size: 0.75rem;
        }
        .hero h1 {
            color: var(--color-text-white);
            margin-bottom: 16px;
            line-height: 1.2;
        }
        .hero h1 span {
            color: var(--color-accent);
            background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin-bottom: 28px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            color: var(--color-primary-dark);
            box-shadow: 0 8px 24px rgba(212, 168, 75, 0.30);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(212, 168, 75, 0.40);
        }
        .btn-outline {
            background: transparent;
            color: var(--color-text-white);
            border: 2px solid rgba(255, 255, 255, 0.25);
        }
        .btn-outline:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background: rgba(212, 168, 75, 0.08);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
            border-radius: 20px;
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 36px;
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.10);
        }
        .hero-stat h4 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--color-text-white);
            line-height: 1.1;
        }
        .hero-stat h4 small {
            font-size: 1rem;
            font-weight: 400;
            color: var(--color-accent);
            margin-left: 4px;
        }
        .hero-stat p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            margin: 4px 0 0;
        }
        @media (max-width: 768px) {
            .hero {
                min-height: 400px;
                padding: 40px 0;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 24px;
                flex-wrap: wrap;
            }
            .hero-stat h4 {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 520px) {
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                justify-content: center;
            }
            .hero-stats {
                gap: 16px;
            }
            .hero-stat {
                flex: 1;
                min-width: 80px;
            }
        }

        /* ===== Features / Core ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--color-border);
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(212, 168, 75, 0.12), rgba(212, 168, 75, 0.05));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.5rem;
            color: var(--color-accent-dark);
        }
        .feature-card h3 {
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 0.92rem;
            margin: 0;
        }
        @media (max-width: 768px) {
            .features-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        /* ===== Category Showcase ===== */
        .category-showcase {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            min-height: 280px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            background: var(--color-primary-dark);
        }
        .category-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .category-card-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.40;
            transition: var(--transition);
        }
        .category-card:hover .category-card-bg {
            opacity: 0.55;
            transform: scale(1.05);
        }
        .category-card-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(26, 10, 62, 0.85) 0%, rgba(26, 10, 62, 0.30) 60%, transparent 100%);
            z-index: 1;
        }
        .category-card-content {
            position: relative;
            z-index: 2;
            padding: 28px 24px;
            width: 100%;
        }
        .category-card-content h3 {
            color: var(--color-text-white);
            margin-bottom: 6px;
            font-size: 1.3rem;
        }
        .category-card-content p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            margin: 0 0 12px;
        }
        .category-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(212, 168, 75, 0.18);
            color: var(--color-accent-light);
            padding: 4px 14px;
            border-radius: 16px;
            font-size: 0.8rem;
            font-weight: 600;
            border: 1px solid rgba(212, 168, 75, 0.15);
        }
        @media (max-width: 768px) {
            .category-showcase {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .category-card {
                min-height: 200px;
            }
        }

        /* ===== Latest Posts / CMS List ===== */
        .posts-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .post-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .post-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: var(--color-border);
        }
        .post-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 0;
            flex-shrink: 0;
        }
        .post-card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .post-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--color-text-light);
            margin-bottom: 8px;
        }
        .post-card-cat {
            background: rgba(212, 168, 75, 0.12);
            color: var(--color-accent-dark);
            padding: 2px 10px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 0.75rem;
        }
        .post-card h3 {
            font-size: 1.05rem;
            margin-bottom: 8px;
            flex: 1;
        }
        .post-card h3 a {
            color: var(--color-text);
            transition: var(--transition);
        }
        .post-card h3 a:hover {
            color: var(--color-accent-dark);
        }
        .post-card p {
            font-size: 0.88rem;
            margin: 0 0 12px;
            flex: 1;
        }
        .post-card-date {
            font-size: 0.78rem;
            color: var(--color-text-light);
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .posts-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 24px;
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--color-border);
            color: var(--color-text-light);
        }
        .posts-empty i {
            font-size: 2rem;
            color: var(--color-border);
            margin-bottom: 12px;
        }
        @media (max-width: 768px) {
            .posts-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .post-card-img {
                height: 140px;
            }
        }

        /* ===== Stats / Data ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            padding: 28px 16px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.10);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-accent-light);
            line-height: 1.2;
        }
        .stat-number small {
            font-size: 1rem;
            font-weight: 400;
            color: rgba(255, 255, 255, 0.5);
        }
        .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 6px;
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }

        /* ===== How It Works / Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            text-align: center;
            position: relative;
            transition: var(--transition);
        }
        .step-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
            color: var(--color-primary-dark);
            font-weight: 800;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            box-shadow: 0 4px 16px rgba(212, 168, 75, 0.25);
        }
        .step-card h3 {
            font-size: 1.05rem;
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 0.88rem;
            margin: 0;
        }
        @media (max-width: 768px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 520px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--color-border);
        }
        .faq-question {
            padding: 18px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:hover {
            background: rgba(26, 10, 62, 0.02);
        }
        .faq-question i {
            color: var(--color-accent);
            font-size: 1.1rem;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 20px 18px;
            font-size: 0.92rem;
            color: var(--color-text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-answer p {
            margin: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            border-radius: var(--radius-lg);
            padding: 60px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            color: var(--color-text-white);
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.7);
            max-width: 560px;
            margin: 0 auto 28px;
            font-size: 1.05rem;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 14px;
        }
        .cta-actions .btn-primary {
            background: var(--color-accent);
            color: var(--color-primary-dark);
            box-shadow: 0 8px 24px rgba(212, 168, 75, 0.35);
        }
        .cta-actions .btn-outline {
            border-color: rgba(255, 255, 255, 0.3);
            color: var(--color-text-white);
        }
        .cta-actions .btn-outline:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 40px 20px;
                border-radius: var(--radius-md);
            }
            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-actions .btn {
                justify-content: center;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            color: var(--color-text-white);
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
            margin: 0;
        }
        .footer-col h4 {
            color: var(--color-text-white);
            font-size: 0.95rem;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col a {
            display: block;
            padding: 4px 0;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--color-accent-light);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--color-accent-light);
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--color-accent);
            color: var(--color-primary-dark);
            transform: translateY(-2px);
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ===== Utilities ===== */
        .text-center {
            text-align: center;
        }
        .mt-8 {
            margin-top: 8px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--color-bg);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--color-border);
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--color-text-light);
        }

        /* ===== Responsive Fine-tune ===== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
            .hero-stat h4 {
                font-size: 1.2rem;
            }
            .hero-stat p {
                font-size: 0.75rem;
            }
            .post-card-img {
                height: 120px;
            }
        }

        /* ===== Print ===== */
        @media print {
            .site-header,
            .bottom-nav,
            .mobile-drawer,
            .drawer-overlay {
                display: none !important;
            }
            body {
                padding: 0;
            }
            .hero {
                min-height: auto;
                padding: 24px 0;
            }
            .hero-bg,
            .hero-overlay {
                display: none;
            }
            .hero h1 {
                color: var(--color-primary);
            }
            .hero p {
                color: var(--color-text);
            }
            .hero-stats {
                border-top-color: var(--color-border);
            }
            .hero-stat h4 {
                color: var(--color-primary);
            }
            .stat-number {
                color: var(--color-primary);
            }
            .cta-section {
                background: var(--color-bg-alt);
            }
            .cta-section h2 {
                color: var(--color-primary);
            }
            .site-footer {
                background: var(--color-bg-alt);
                color: var(--color-text);
            }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #e74c3c;
            --primary-light: #f1948a;
            --primary-dark: #c0392b;
            --secondary: #f39c12;
            --secondary-light: #f7dc6f;
            --accent: #8e44ad;
            --bg-dark: #0a0e1a;
            --bg-dark-alt: #111827;
            --bg-card: #1a2236;
            --bg-card-hover: #1f2a42;
            --bg-section: #0f1525;
            --text-white: #ffffff;
            --text-light: #e2e8f0;
            --text-muted: #94a3b8;
            --text-dim: #64748b;
            --border-color: #2d3a50;
            --border-light: #3d4a62;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 30px rgba(231, 76, 60, 0.15);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-light);
            background: var(--bg-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(10, 14, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 26px;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.5px;
        }
        .logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            box-shadow: 0 4px 12px rgba(231, 76, 60, 0.3);
        }
        .logo span:not(.logo-icon) {
            color: var(--secondary);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            position: relative;
        }
        .main-nav a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
        }
        .main-nav a.active {
            color: var(--text-white);
            background: rgba(231, 76, 60, 0.18);
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 2px;
            background: var(--primary);
        }
        .main-nav .nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff !important;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            box-shadow: 0 4px 16px rgba(231, 76, 60, 0.25);
        }
        .main-nav .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(231, 76, 60, 0.35);
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
        }
        .main-nav .nav-cta i {
            margin-right: 6px;
        }
        .nav-toggle {
            display: none;
            font-size: 24px;
            color: var(--text-white);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.05);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        @media (max-width: 768px) {
            .main-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(10, 14, 26, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 6px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .main-nav a {
                width: 100%;
                padding: 12px 16px;
                font-size: 16px;
            }
            .main-nav .nav-cta {
                text-align: center;
                margin-top: 8px;
            }
            .nav-toggle {
                display: block;
            }
        }

        /* ===== Mobile Bottom Tab ===== */
        .mobile-tabbar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: rgba(10, 14, 26, 0.96);
            backdrop-filter: blur(16px);
            border-top: 1px solid var(--border-color);
            padding: 6px 0 env(safe-area-inset-bottom, 6px) 0;
            justify-content: space-around;
            align-items: center;
        }
        .mobile-tabbar a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            font-size: 11px;
            font-weight: 500;
            color: var(--text-dim);
            transition: var(--transition);
            min-width: 60px;
        }
        .mobile-tabbar a i {
            font-size: 20px;
            transition: var(--transition);
        }
        .mobile-tabbar a:hover,
        .mobile-tabbar a.active {
            color: var(--secondary);
        }
        .mobile-tabbar a.active i {
            transform: scale(1.1);
        }
        .mobile-tabbar .tab-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff !important;
            border-radius: 30px;
            padding: 6px 20px;
            box-shadow: 0 4px 16px rgba(231, 76, 60, 0.25);
        }
        .mobile-tabbar .tab-cta i {
            color: #fff !important;
        }
        @media (max-width: 768px) {
            .mobile-tabbar {
                display: flex;
            }
            body {
                padding-bottom: 68px;
            }
        }

        /* ===== Page Hero (内页横幅) ===== */
        .page-hero {
            padding: 140px 0 80px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-section) 50%, var(--bg-dark-alt) 100%);
            position: relative;
            overflow: hidden;
            min-height: 380px;
            display: flex;
            align-items: center;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(231, 76, 60, 0.08), transparent 70%);
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-hero .breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-dim);
            margin-bottom: 20px;
        }
        .page-hero .breadcrumb a {
            color: var(--text-muted);
        }
        .page-hero .breadcrumb a:hover {
            color: var(--secondary);
        }
        .page-hero .breadcrumb .sep {
            color: var(--text-dim);
        }
        .page-hero h1 {
            font-size: 48px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -1px;
        }
        .page-hero h1 span {
            background: linear-gradient(135deg, var(--secondary), var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .page-hero p {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 680px;
            margin: 0 auto 16px;
            line-height: 1.7;
        }
        .page-hero .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 32px;
            flex-wrap: wrap;
        }
        .page-hero .hero-stats .stat-item {
            text-align: center;
        }
        .page-hero .hero-stats .stat-num {
            font-size: 32px;
            font-weight: 800;
            color: var(--secondary);
            display: block;
        }
        .page-hero .hero-stats .stat-label {
            font-size: 14px;
            color: var(--text-dim);
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .page-hero {
                padding: 110px 0 60px;
                min-height: 300px;
            }
            .page-hero h1 {
                font-size: 30px;
            }
            .page-hero p {
                font-size: 16px;
            }
            .page-hero .hero-stats {
                gap: 24px;
            }
            .page-hero .hero-stats .stat-num {
                font-size: 24px;
            }
        }
        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 26px;
            }
            .page-hero .hero-stats {
                gap: 16px;
            }
            .page-hero .hero-stats .stat-num {
                font-size: 20px;
            }
        }

        /* ===== Section Common ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-section);
        }
        .section-dark {
            background: var(--bg-dark-alt);
        }
        .section-title {
            text-align: center;
            margin-bottom: 52px;
        }
        .section-title h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .section-title h2 span {
            background: linear-gradient(135deg, var(--secondary), var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .section-title p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }
        .section-title .title-line {
            display: inline-block;
            width: 60px;
            height: 4px;
            border-radius: 2px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            margin-top: 16px;
        }
        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .section-title h2 {
                font-size: 28px;
            }
            .section-title p {
                font-size: 15px;
            }
            .section-title {
                margin-bottom: 36px;
            }
        }

        /* ===== Cards Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .card-grid.cols-3 {
            grid-template-columns: repeat(3, 1fr);
        }
        .card-grid.cols-2 {
            grid-template-columns: repeat(2, 1fr);
        }
        @media (max-width: 1024px) {
            .card-grid.cols-3 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .card-grid {
                grid-template-columns: 1fr !important;
            }
        }

        /* ===== Guide Card ===== */
        .guide-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .guide-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0;
            transition: var(--transition);
        }
        .guide-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .guide-card:hover::before {
            opacity: 1;
        }
        .guide-card .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, rgba(231, 76, 60, 0.15), rgba(243, 156, 18, 0.15));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--secondary);
            margin-bottom: 18px;
            transition: var(--transition);
        }
        .guide-card:hover .card-icon {
            background: linear-gradient(135deg, rgba(231, 76, 60, 0.25), rgba(243, 156, 18, 0.25));
            transform: scale(1.05);
        }
        .guide-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 10px;
        }
        .guide-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .guide-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .guide-card .card-tags span {
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-dim);
            border: 1px solid var(--border-color);
        }
        .guide-card .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 18px;
            padding-top: 16px;
            border-top: 1px solid var(--border-color);
        }
        .guide-card .card-footer .read-more {
            font-size: 14px;
            font-weight: 600;
            color: var(--secondary);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .guide-card .card-footer .read-more i {
            transition: var(--transition);
        }
        .guide-card .card-footer .read-more:hover i {
            transform: translateX(4px);
        }
        .guide-card .card-footer .level {
            font-size: 12px;
            color: var(--text-dim);
            padding: 2px 12px;
            border-radius: 20px;
            background: rgba(255, 255, 255, 0.05);
        }

        /* ===== Feature / 图文区块 ===== */
        .feature-block {
            display: flex;
            align-items: center;
            gap: 60px;
            margin-bottom: 60px;
        }
        .feature-block:last-child {
            margin-bottom: 0;
        }
        .feature-block.reverse {
            flex-direction: row-reverse;
        }
        .feature-block .feature-img {
            flex: 0 0 48%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .feature-block .feature-img img {
            width: 100%;
            height: 360px;
            object-fit: cover;
            transition: var(--transition);
        }
        .feature-block .feature-img:hover img {
            transform: scale(1.03);
        }
        .feature-block .feature-img::after {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.05);
            pointer-events: none;
        }
        .feature-block .feature-text {
            flex: 1;
        }
        .feature-block .feature-text .step-badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(231, 76, 60, 0.15);
            color: var(--primary-light);
            margin-bottom: 12px;
            letter-spacing: 1px;
        }
        .feature-block .feature-text h3 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 14px;
        }
        .feature-block .feature-text p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 18px;
        }
        .feature-block .feature-text ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .feature-block .feature-text ul li {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 15px;
            color: var(--text-light);
        }
        .feature-block .feature-text ul li i {
            color: var(--secondary);
            font-size: 16px;
            width: 20px;
            text-align: center;
        }
        @media (max-width: 1024px) {
            .feature-block {
                gap: 40px;
            }
            .feature-block .feature-img {
                flex: 0 0 45%;
            }
            .feature-block .feature-img img {
                height: 280px;
            }
        }
        @media (max-width: 768px) {
            .feature-block,
            .feature-block.reverse {
                flex-direction: column;
                gap: 30px;
            }
            .feature-block .feature-img {
                flex: unset;
                width: 100%;
            }
            .feature-block .feature-img img {
                height: 220px;
            }
            .feature-block .feature-text h3 {
                font-size: 22px;
            }
        }

        /* ===== Flow / Steps ===== */
        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }
        .flow-steps::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--secondary), var(--primary));
            opacity: 0.2;
            z-index: 0;
        }
        .flow-step {
            text-align: center;
            position: relative;
            z-index: 1;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 20px 24px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .flow-step:hover {
            transform: translateY(-4px);
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
        }
        .flow-step .step-num {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            font-size: 22px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 4px 16px rgba(231, 76, 60, 0.2);
        }
        .flow-step h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
        }
        .flow-step p {
            font-size: 14px;
            color: var(--text-muted);
        }
        @media (max-width: 1024px) {
            .flow-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .flow-steps::before {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .flow-steps {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-item .faq-q {
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-light);
            transition: var(--transition);
            gap: 16px;
            user-select: none;
        }
        .faq-item .faq-q:hover {
            color: var(--text-white);
        }
        .faq-item .faq-q i {
            color: var(--secondary);
            font-size: 18px;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
        }
        .faq-item .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.45s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
        }
        .faq-item.open .faq-a {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--bg-card), var(--bg-dark-alt));
            border-radius: var(--radius-xl);
            padding: 64px 48px;
            text-align: center;
            border: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(231, 76, 60, 0.06), transparent 70%);
            pointer-events: none;
        }
        .cta-block h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .cta-block h2 span {
            background: linear-gradient(135deg, var(--secondary), var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .cta-block p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 520px;
            margin: 0 auto 28px;
        }
        .cta-block .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 4px 20px rgba(231, 76, 60, 0.25);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 36px rgba(231, 76, 60, 0.35);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-light);
            border: 2px solid var(--border-color);
        }
        .btn-outline:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            transform: translateY(-3px);
        }
        @media (max-width: 768px) {
            .cta-block {
                padding: 40px 24px;
            }
            .cta-block h2 {
                font-size: 26px;
            }
            .btn {
                padding: 12px 24px;
                font-size: 15px;
            }
        }

        /* ===== Article List (攻略列表) ===== */
        .article-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 24px;
        }
        .article-card {
            display: flex;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--border-light);
        }
        .article-card .art-img {
            flex: 0 0 140px;
            overflow: hidden;
            position: relative;
        }
        .article-card .art-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .article-card:hover .art-img img {
            transform: scale(1.05);
        }
        .article-card .art-body {
            flex: 1;
            padding: 18px 20px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .article-card .art-body .art-cat {
            font-size: 12px;
            font-weight: 600;
            color: var(--secondary);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }
        .article-card .art-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .article-card .art-body p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card .art-body .art-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 10px;
            font-size: 12px;
            color: var(--text-dim);
        }
        .article-card .art-body .art-meta i {
            margin-right: 4px;
        }
        @media (max-width: 520px) {
            .article-card {
                flex-direction: column;
            }
            .article-card .art-img {
                flex: unset;
                height: 180px;
            }
            .article-list {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark-alt);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .site-footer .footer-brand .logo {
            margin-bottom: 16px;
        }
        .site-footer .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 320px;
        }
        .site-footer .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .site-footer .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-muted);
            padding: 5px 0;
            transition: var(--transition);
        }
        .site-footer .footer-col a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            font-size: 14px;
            color: var(--text-dim);
            flex-wrap: wrap;
            gap: 16px;
        }
        .site-footer .footer-bottom a {
            color: var(--text-muted);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--secondary);
        }
        .site-footer .footer-social {
            display: flex;
            gap: 12px;
        }
        .site-footer .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--text-dim);
            transition: var(--transition);
            border: 1px solid var(--border-color);
        }
        .site-footer .footer-social a:hover {
            background: rgba(231, 76, 60, 0.15);
            color: var(--secondary);
            border-color: var(--secondary);
            transform: translateY(-2px);
        }
        @media (max-width: 1024px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            .site-footer {
                padding: 40px 0 20px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Back to Top ===== */
        .back-top {
            position: fixed;
            bottom: 100px;
            right: 28px;
            z-index: 99;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 20px rgba(231, 76, 60, 0.25);
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: var(--transition);
            cursor: pointer;
        }
        .back-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .back-top:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 32px rgba(231, 76, 60, 0.35);
        }
        @media (max-width: 768px) {
            .back-top {
                bottom: 80px;
                right: 16px;
                width: 42px;
                height: 42px;
                font-size: 16px;
            }
        }

        /* ===== Responsive Fine-tune ===== */
        @media (max-width: 1024px) {
            .container {
                max-width: 100%;
            }
        }
        @media (max-width: 520px) {
            .section-title h2 {
                font-size: 24px;
            }
            .feature-block .feature-text h3 {
                font-size: 20px;
            }
            .flow-step {
                padding: 24px 16px;
            }
        }

/* roulang page: article */
/* ===== Design Variables ===== */
    :root {
        --primary: #d4263e;
        --primary-dark: #b01e32;
        --primary-light: #fce8ea;
        --primary-gradient: linear-gradient(135deg, #d4263e 0%, #b01e32 100%);
        --secondary: #f5a623;
        --secondary-dark: #d4911e;
        --secondary-light: #fef3e0;
        --secondary-gradient: linear-gradient(135deg, #f5a623 0%, #d4911e 100%);
        --dark: #1a1a2e;
        --dark-light: #2d2d44;
        --bg: #f7f3ef;
        --bg-white: #ffffff;
        --text: #1e293b;
        --text-light: #64748b;
        --text-muted: #94a3b8;
        --border: #e2e8f0;
        --radius: 14px;
        --radius-sm: 8px;
        --radius-xl: 20px;
        --shadow: 0 4px 24px rgba(0,0,0,0.06);
        --shadow-md: 0 8px 32px rgba(0,0,0,0.08);
        --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
        --shadow-glow: 0 0 40px rgba(212, 38, 62, 0.15);
        --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        --container: 1200px;
        --nav-height: 72px;
        --tab-height: 64px;
    }

    /* ===== 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);
        font-size: 16px;
        line-height: 1.7;
        color: var(--text);
        background: var(--bg);
        padding-top: var(--nav-height);
        padding-bottom: 0;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
    a { color: var(--primary); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--primary-dark); }
    a:focus-visible { outline: 3px solid var(--secondary); outline-offset: 2px; border-radius: 4px; }
    button { font-family: inherit; cursor: pointer; border: none; background: none; transition: var(--transition); }
    button:focus-visible { outline: 3px solid var(--secondary); outline-offset: 2px; border-radius: 6px; }
    input, textarea { font-family: inherit; font-size: 1rem; border-radius: var(--radius-sm); border: 1.5px solid var(--border); padding: 10px 16px; transition: var(--transition); background: var(--bg-white); color: var(--text); }
    input:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 4px var(--primary-light); }
    ul, ol { list-style: none; }
    h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--dark); }
    .container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
    .container-narrow { max-width: 840px; margin: 0 auto; padding: 0 24px; }
    section { padding: 80px 0; }
    .section-label { display: inline-flex; align-items: center; gap: 8px; font-size: 0.85rem; font-weight: 600; color: var(--primary); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 12px; }
    .section-label::before { content: ''; width: 24px; height: 2.5px; background: var(--primary); border-radius: 2px; }
    .section-title { font-size: 2.2rem; font-weight: 800; color: var(--dark); margin-bottom: 16px; line-height: 1.25; }
    .section-subtitle { font-size: 1.1rem; color: var(--text-light); max-width: 640px; line-height: 1.7; }
    @media (max-width: 768px) {
        section { padding: 56px 0; }
        .section-title { font-size: 1.65rem; }
        .section-subtitle { font-size: 1rem; }
        .container { padding: 0 16px; }
        .container-narrow { padding: 0 16px; }
    }

    /* ===== Header & Navigation ===== */
    .site-header {
        position: fixed; top: 0; left: 0; width: 100%; height: var(--nav-height);
        background: rgba(255,255,255,0.92); backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--border); z-index: 1000;
        box-shadow: 0 1px 8px rgba(0,0,0,0.04);
    }
    .site-header .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
    .logo { display: flex; align-items: center; gap: 6px; font-size: 1.5rem; font-weight: 800; color: var(--dark); text-decoration: none; }
    .logo:hover { color: var(--dark); }
    .logo .logo-icon { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; background: var(--primary-gradient); color: #fff; border-radius: 10px; font-size: 1.2rem; font-weight: 800; box-shadow: 0 2px 12px rgba(212,38,62,0.3); }
    .logo span:last-child { color: var(--primary); }
    .main-nav { display: flex; align-items: center; gap: 8px; }
    .main-nav a { padding: 8px 18px; border-radius: var(--radius-sm); font-size: 0.95rem; font-weight: 500; color: var(--text-light); text-decoration: none; transition: var(--transition); position: relative; }
    .main-nav a:hover { color: var(--primary); background: var(--primary-light); }
    .main-nav a.active { color: var(--primary); background: var(--primary-light); font-weight: 600; }
    .main-nav a.active::after { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; background: var(--primary); border-radius: 3px; }
    .main-nav a.nav-cta { background: var(--primary-gradient); color: #fff; padding: 10px 24px; border-radius: 50px; font-weight: 600; box-shadow: 0 4px 16px rgba(212,38,62,0.25); display: flex; align-items: center; gap: 8px; }
    .main-nav a.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(212,38,62,0.35); color: #fff; background: var(--primary-gradient); }
    .nav-toggle { display: none; font-size: 1.4rem; color: var(--dark); padding: 8px; border-radius: var(--radius-sm); }
    .nav-toggle:hover { background: var(--primary-light); color: var(--primary); }
    @media (max-width: 768px) {
        .main-nav { display: none; }
        .nav-toggle { display: block; }
        .main-nav.open { display: flex; flex-direction: column; position: absolute; top: var(--nav-height); left: 0; width: 100%; background: rgba(255,255,255,0.98); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); padding: 16px 24px; gap: 4px; box-shadow: var(--shadow-md); }
        .main-nav.open a { width: 100%; padding: 12px 16px; border-radius: var(--radius-sm); }
        .main-nav.open a.nav-cta { justify-content: center; margin-top: 8px; }
        .main-nav a.active::after { display: none; }
    }

    /* ===== Mobile Bottom Tab ===== */
    .mobile-tab { display: none; }
    @media (max-width: 768px) {
        body { padding-bottom: var(--tab-height); }
        .mobile-tab {
            display: flex; position: fixed; bottom: 0; left: 0; width: 100%; height: var(--tab-height);
            background: rgba(255,255,255,0.96); backdrop-filter: blur(16px);
            border-top: 1px solid var(--border); z-index: 999;
            justify-content: space-around; align-items: center;
            box-shadow: 0 -2px 16px rgba(0,0,0,0.04);
        }
        .mobile-tab a {
            flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center;
            gap: 2px; padding: 6px 0; font-size: 0.7rem; font-weight: 500;
            color: var(--text-light); text-decoration: none; transition: var(--transition);
            border-radius: 0; position: relative;
        }
        .mobile-tab a i { font-size: 1.25rem; transition: var(--transition); }
        .mobile-tab a:hover { color: var(--primary); background: transparent; }
        .mobile-tab a.active { color: var(--primary); font-weight: 600; }
        .mobile-tab a.active i { transform: scale(1.05); }
        .mobile-tab a.active::after { content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 24px; height: 3px; background: var(--primary); border-radius: 0 0 3px 3px; }
        .mobile-tab a.nav-cta-tab { color: var(--primary); }
        .mobile-tab a.nav-cta-tab i { background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
    }

    /* ===== Article Banner ===== */
    .article-banner {
        position: relative; padding: 80px 0 60px; background: var(--dark);
        background-image: url('/assets/images/backpic/back-2.png');
        background-size: cover; background-position: center; background-blend-mode: overlay;
        min-height: 300px; display: flex; align-items: center;
    }
    .article-banner::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(26,26,46,0.85) 0%, rgba(26,26,46,0.65) 100%); }
    .article-banner .container-narrow { position: relative; z-index: 2; }
    .article-breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 0.85rem; color: rgba(255,255,255,0.7); margin-bottom: 20px; }
    .article-breadcrumb a { color: rgba(255,255,255,0.8); text-decoration: none; }
    .article-breadcrumb a:hover { color: var(--secondary); }
    .article-breadcrumb span { color: rgba(255,255,255,0.5); }
    .article-banner-title { font-size: 2.6rem; font-weight: 800; color: #fff; line-height: 1.25; margin-bottom: 16px; max-width: 800px; }
    .article-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 24px; color: rgba(255,255,255,0.8); font-size: 0.9rem; }
    .article-meta .meta-item { display: flex; align-items: center; gap: 6px; }
    .article-meta .meta-item i { font-size: 0.85rem; opacity: 0.7; }
    .article-meta .category-tag { display: inline-block; padding: 4px 14px; background: var(--secondary); color: var(--dark); border-radius: 50px; font-size: 0.8rem; font-weight: 600; }
    @media (max-width: 768px) {
        .article-banner { padding: 56px 0 40px; min-height: 220px; }
        .article-banner-title { font-size: 1.8rem; }
        .article-meta { gap: 10px 16px; font-size: 0.8rem; }
    }

    /* ===== Article Content ===== */
    .article-body { padding: 48px 0 32px; background: var(--bg-white); }
    .article-content { font-size: 1.05rem; line-height: 1.85; color: var(--text); }
    .article-content p { margin-bottom: 1.5em; }
    .article-content h2 { font-size: 1.6rem; margin-top: 2em; margin-bottom: 0.8em; color: var(--dark); }
    .article-content h3 { font-size: 1.3rem; margin-top: 1.6em; margin-bottom: 0.6em; color: var(--dark); }
    .article-content ul, .article-content ol { margin-bottom: 1.5em; padding-left: 1.5em; }
    .article-content li { margin-bottom: 0.5em; list-style: disc; }
    .article-content ol li { list-style: decimal; }
    .article-content blockquote { border-left: 4px solid var(--primary); padding: 16px 24px; background: var(--primary-light); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin-bottom: 1.5em; color: var(--text); font-style: italic; }
    .article-content img { border-radius: var(--radius); margin: 1.5em 0; box-shadow: var(--shadow-md); }
    .article-content a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
    .article-content a:hover { color: var(--primary-dark); }
    .article-content table { width: 100%; border-collapse: collapse; margin-bottom: 1.5em; font-size: 0.95rem; }
    .article-content th, .article-content td { padding: 12px 16px; border: 1px solid var(--border); text-align: left; }
    .article-content th { background: var(--primary-light); font-weight: 600; color: var(--dark); }
    .article-content code { background: #f1f5f9; padding: 2px 8px; border-radius: 4px; font-size: 0.9em; }
    .article-cover-img { margin-bottom: 32px; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-md); }
    .article-cover-img img { width: 100%; border-radius: var(--radius); }
    @media (max-width: 768px) {
        .article-body { padding: 32px 0 24px; }
        .article-content { font-size: 1rem; }
        .article-content h2 { font-size: 1.35rem; }
        .article-content h3 { font-size: 1.15rem; }
        .article-cover-img { margin-bottom: 24px; }
    }

    /* ===== Article Tags & Share ===== */
    .article-footer-bar { padding: 24px 0 40px; border-top: 1px solid var(--border); margin-top: 40px; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 16px; }
    .article-tags { display: flex; flex-wrap: wrap; gap: 8px; }
    .article-tags .tag { display: inline-block; padding: 6px 16px; background: var(--bg); border: 1px solid var(--border); border-radius: 50px; font-size: 0.82rem; color: var(--text-light); transition: var(--transition); }
    .article-tags .tag:hover { background: var(--primary-light); border-color: var(--primary); color: var(--primary); }
    .share-buttons { display: flex; align-items: center; gap: 8px; }
    .share-buttons span { font-size: 0.85rem; color: var(--text-light); font-weight: 500; }
    .share-buttons a { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 50%; background: var(--bg); color: var(--text-light); border: 1px solid var(--border); transition: var(--transition); }
    .share-buttons a:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-2px); box-shadow: 0 4px 12px rgba(212,38,62,0.2); }
    .article-nav-links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 16px; }
    .article-nav-links a { display: inline-flex; align-items: center; gap: 8px; padding: 10px 24px; border: 1.5px solid var(--border); border-radius: 50px; font-size: 0.9rem; font-weight: 500; color: var(--text); transition: var(--transition); }
    .article-nav-links a:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }
    @media (max-width: 768px) {
        .article-footer-bar { flex-direction: column; align-items: flex-start; gap: 12px; }
        .share-buttons { width: 100%; justify-content: flex-start; }
    }

    /* ===== Related Posts ===== */
    .related-section { background: var(--bg); }
    .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 40px; }
    .related-card { background: var(--bg-white); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: var(--transition); border: 1px solid var(--border); }
    .related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
    .related-card .card-img { width: 100%; height: 180px; object-fit: cover; border-radius: 0; }
    .related-card .card-body { padding: 20px; }
    .related-card .card-cat { font-size: 0.75rem; font-weight: 600; color: var(--primary); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 6px; }
    .related-card .card-title { font-size: 1.05rem; font-weight: 700; color: var(--dark); line-height: 1.4; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
    .related-card .card-title a { color: var(--dark); text-decoration: none; }
    .related-card .card-title a:hover { color: var(--primary); }
    .related-card .card-date { font-size: 0.8rem; color: var(--text-muted); }
    .related-card .card-excerpt { font-size: 0.88rem; color: var(--text-light); margin-top: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
    @media (max-width: 768px) {
        .related-grid { grid-template-columns: 1fr; gap: 16px; }
        .related-card .card-img { height: 200px; }
    }
    @media (min-width: 769px) and (max-width: 1024px) {
        .related-grid { grid-template-columns: repeat(2, 1fr); }
    }

    /* ===== CTA Section ===== */
    .cta-section {
        background: var(--dark); position: relative; overflow: hidden;
        background-image: url('/assets/images/backpic/back-3.png');
        background-size: cover; background-position: center; background-blend-mode: overlay;
    }
    .cta-section::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(26,26,46,0.92) 0%, rgba(26,26,46,0.8) 100%); }
    .cta-section .container { position: relative; z-index: 2; text-align: center; }
    .cta-section .section-title { color: #fff; }
    .cta-section .section-subtitle { color: rgba(255,255,255,0.7); margin: 0 auto 32px; }
    .cta-buttons { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; }
    .cta-btn { display: inline-flex; align-items: center; gap: 10px; padding: 16px 36px; border-radius: 50px; font-size: 1.05rem; font-weight: 600; transition: var(--transition); text-decoration: none; }
    .cta-btn.primary { background: var(--primary-gradient); color: #fff; box-shadow: 0 8px 24px rgba(212,38,62,0.3); }
    .cta-btn.primary:hover { transform: translateY(-3px); box-shadow: 0 12px 36px rgba(212,38,62,0.4); color: #fff; }
    .cta-btn.secondary { background: rgba(255,255,255,0.12); color: #fff; border: 1.5px solid rgba(255,255,255,0.25); backdrop-filter: blur(4px); }
    .cta-btn.secondary:hover { background: rgba(255,255,255,0.2); border-color: rgba(255,255,255,0.4); color: #fff; transform: translateY(-3px); }
    @media (max-width: 768px) {
        .cta-btn { width: 100%; justify-content: center; padding: 14px 24px; font-size: 0.95rem; }
    }

    /* ===== FAQ Section ===== */
    .faq-section { background: var(--bg-white); }
    .faq-grid { max-width: 800px; margin: 40px auto 0; display: flex; flex-direction: column; gap: 12px; }
    .faq-item { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: var(--transition); background: var(--bg); }
    .faq-item:hover { border-color: var(--primary-light); }
    .faq-item.open { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light); }
    .faq-question { display: flex; justify-content: space-between; align-items: center; width: 100%; padding: 18px 24px; background: transparent; font-size: 1rem; font-weight: 600; color: var(--dark); text-align: left; transition: var(--transition); }
    .faq-question:hover { color: var(--primary); }
    .faq-question i { font-size: 1rem; color: var(--text-muted); transition: var(--transition); }
    .faq-item.open .faq-question i { transform: rotate(180deg); color: var(--primary); }
    .faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.4s ease; padding: 0 24px; }
    .faq-item.open .faq-answer { max-height: 300px; padding: 0 24px 20px; }
    .faq-answer p { font-size: 0.95rem; color: var(--text-light); line-height: 1.7; }
    @media (max-width: 768px) {
        .faq-question { padding: 14px 16px; font-size: 0.95rem; }
        .faq-item.open .faq-answer { padding: 0 16px 16px; }
    }

    /* ===== Footer ===== */
    .site-footer { background: var(--dark); color: rgba(255,255,255,0.7); padding: 64px 0 32px; }
    .site-footer .logo { color: #fff; }
    .site-footer .logo .logo-icon { background: var(--primary-gradient); }
    .site-footer .logo span:last-child { color: var(--secondary); }
    .footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
    .footer-brand p { font-size: 0.9rem; line-height: 1.7; margin-top: 16px; color: rgba(255,255,255,0.6); max-width: 320px; }
    .footer-col h4 { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 16px; }
    .footer-col a { display: block; padding: 5px 0; font-size: 0.9rem; color: rgba(255,255,255,0.6); text-decoration: none; transition: var(--transition); }
    .footer-col a:hover { color: var(--secondary); transform: translateX(4px); }
    .footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.1); font-size: 0.85rem; gap: 16px; }
    .footer-bottom span { color: rgba(255,255,255,0.5); }
    .footer-bottom a { color: rgba(255,255,255,0.6); text-decoration: none; }
    .footer-bottom a:hover { color: var(--secondary); }
    .footer-social { display: flex; gap: 12px; }
    .footer-social a { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.6); transition: var(--transition); }
    .footer-social a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
    @media (max-width: 768px) {
        .site-footer { padding: 40px 0 24px; }
        .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
        .footer-brand { grid-column: 1 / -1; }
        .footer-bottom { flex-direction: column; text-align: center; }
    }
    @media (max-width: 520px) {
        .footer-grid { grid-template-columns: 1fr; gap: 20px; }
    }

    /* ===== Not Found State ===== */
    .not-found-box { text-align: center; padding: 60px 24px; background: var(--bg-white); border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--border); }
    .not-found-box i { font-size: 3rem; color: var(--text-muted); margin-bottom: 16px; display: block; }
    .not-found-box h2 { font-size: 1.4rem; margin-bottom: 12px; color: var(--dark); }
    .not-found-box p { color: var(--text-light); margin-bottom: 24px; }
    .not-found-box a { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; background: var(--primary-gradient); color: #fff; border-radius: 50px; font-weight: 600; box-shadow: 0 4px 16px rgba(212,38,62,0.25); }
    .not-found-box a:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(212,38,62,0.35); color: #fff; }

    /* ===== Utility ===== */
    .text-center { text-align: center; }
    .mt-16 { margin-top: 16px; }
    .mt-24 { margin-top: 24px; }
    .mt-32 { margin-top: 32px; }
    .mb-16 { margin-bottom: 16px; }
    .mb-24 { margin-bottom: 24px; }
    .gap-8 { gap: 8px; }
    .gap-12 { gap: 12px; }
    .flex-center { display: flex; align-items: center; justify-content: center; }
    .hidden { display: none !important; }

    /* ===== Print ===== */
    @media print {
        .site-header, .mobile-tab, .cta-section, .related-section, .site-footer { display: none !important; }
        body { padding-top: 0; background: #fff; }
        .article-banner { background: #f8f4f0 !important; min-height: auto; padding: 20px 0; }
        .article-banner::before { display: none; }
        .article-banner-title { color: var(--dark); }
        .article-meta { color: var(--text-light); }
        .article-body { box-shadow: none; }
    }