/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #6A0DAD;
            --color-primary-dark: #4B0A7A;
            --color-accent: #B44BFF;
            --color-secondary: #00E5FF;
            --color-secondary-dark: #00B8CC;
            --color-bg: #F8F9FA;
            --color-bg-alt: #F0F2F5;
            --color-text: #1A1A2E;
            --color-text-light: #5A5A7A;
            --color-text-lighter: #8A8AA8;
            --color-border: #E0E0EC;
            --color-white: #FFFFFF;
            --color-dark-bg: #1A0A2E;
            --color-dark-bg-alt: #2D1B4E;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(106, 13, 173, 0.06);
            --shadow-default: 0 4px 12px rgba(106, 13, 173, 0.08);
            --shadow-lg: 0 8px 24px rgba(106, 13, 173, 0.12);
            --shadow-xl: 0 12px 36px rgba(106, 13, 173, 0.18);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: "PingFang SC", "Microsoft YaHei", sans-serif;
            --font-body: "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --nav-height: 72px;
            --max-width: 1200px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font-body);
            color: var(--color-text);
            background: var(--color-bg);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--color-accent);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--color-secondary);
            outline-offset: 2px;
        }
        ul,
        ol {
            list-style: none;
        }
        button {
            border: none;
            background: none;
            cursor: pointer;
            font-family: inherit;
        }
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 1rem;
        }

        /* ===== Container ===== */
        .s-container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.5rem;
            width: 100%;
        }
        @media (max-width: 640px) {
            .s-container {
                padding: 0 1rem;
            }
        }

        /* ===== Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(106, 13, 173, 0.08);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.98);
            box-shadow: 0 2px 20px rgba(106, 13, 173, 0.1);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.5rem;
            gap: 1rem;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--color-primary);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .site-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            border-radius: var(--radius-sm);
            color: var(--color-white);
            font-size: 1.1rem;
            font-weight: 800;
        }
        .site-logo .logo-text {
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-search {
            flex: 1;
            max-width: 420px;
            min-width: 160px;
            position: relative;
            margin: 0 0.75rem;
        }
        .nav-search .search-icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--color-text-lighter);
            font-size: 0.9rem;
            pointer-events: none;
        }
        .nav-search input[type="text"] {
            width: 100%;
            height: 42px;
            padding: 0 1rem 0 2.6rem;
            border: 1.5px solid var(--color-border);
            border-radius: 30px;
            background: var(--color-bg-alt);
            font-size: 0.9rem;
            color: var(--color-text);
            transition: var(--transition);
        }
        .nav-search input[type="text"]::placeholder {
            color: var(--color-text-lighter);
        }
        .nav-search input[type="text"]:focus {
            border-color: var(--color-primary);
            background: var(--color-white);
            box-shadow: 0 0 0 4px rgba(106, 13, 173, 0.08);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-shrink: 0;
        }
        .nav-links a {
            padding: 0.5rem 1rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 1rem;
            right: 1rem;
            height: 2px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
            border-radius: 2px;
            transform: scaleX(0);
            transition: transform 0.3s ease;
        }
        .nav-links a:hover::after,
        .nav-links a.active::after {
            transform: scaleX(1);
        }
        .nav-links a:hover {
            color: var(--color-primary);
            background: rgba(106, 13, 173, 0.05);
        }
        .nav-links a.active {
            color: var(--color-primary);
            font-weight: 600;
        }
        .nav-toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--color-text);
            padding: 0.25rem 0.5rem;
            border-radius: var(--radius-sm);
            background: transparent;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(106, 13, 173, 0.06);
        }

        /* Mobile Nav Overlay */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .mobile-nav-overlay.open {
            opacity: 1;
        }
        .mobile-nav-panel {
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background: var(--color-white);
            padding: 1.5rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
            transform: translateY(-110%);
            transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            z-index: 1000;
            border-bottom: 2px solid var(--color-border);
        }
        .mobile-nav-panel.open {
            transform: translateY(0);
        }
        .mobile-nav-panel a {
            display: block;
            padding: 0.75rem 1rem;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--color-text);
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .mobile-nav-panel a:hover,
        .mobile-nav-panel a.active {
            color: var(--color-primary);
            background: rgba(106, 13, 173, 0.06);
        }
        .mobile-nav-panel a.active {
            font-weight: 600;
        }
        .mobile-nav-search {
            margin-bottom: 1rem;
        }
        .mobile-nav-search input[type="text"] {
            width: 100%;
            height: 44px;
            padding: 0 1rem 0 2.6rem;
            border: 1.5px solid var(--color-border);
            border-radius: 30px;
            background: var(--color-bg-alt);
            font-size: 0.95rem;
        }
        .mobile-nav-search .search-icon {
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            position: absolute;
            color: var(--color-text-lighter);
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-search {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .header-inner {
                padding: 0 1rem;
            }
            .site-logo {
                font-size: 1.2rem;
            }
            .site-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.95rem;
            }
        }
        @media (min-width: 769px) {
            .mobile-nav-panel,
            .mobile-nav-overlay {
                display: none !important;
            }
        }

        /* ===== Hero Section ===== */
        .hero-section {
            margin-top: var(--nav-height);
            min-height: 85vh;
            display: flex;
            align-items: center;
            position: relative;
            background: linear-gradient(135deg, #1A0A2E 0%, #2D1B4E 40%, #1A2A4E 70%, #0A2A3A 100%);
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.25;
            mix-blend-mode: overlay;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 10, 46, 0.88) 0%, rgba(45, 27, 78, 0.72) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 4rem 0;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }
        .hero-text h1 {
            font-family: var(--font-heading);
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--color-white);
            margin-bottom: 1.25rem;
            letter-spacing: -0.01em;
        }
        .hero-text h1 .highlight {
            background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-subtitle {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            margin-bottom: 2rem;
            max-width: 540px;
        }
        .hero-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .hero-image {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
            aspect-ratio: 16 / 10;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .hero-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .hero-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(106, 13, 173, 0.15), rgba(0, 229, 255, 0.08));
            pointer-events: none;
        }
        .hero-glow {
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(106, 13, 173, 0.25), transparent);
            top: -60px;
            right: -60px;
            pointer-events: none;
        }
        .hero-glow-2 {
            position: absolute;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.15), transparent);
            bottom: -40px;
            left: -40px;
            pointer-events: none;
        }

        @media (max-width: 900px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
                text-align: center;
            }
            .hero-text h1 {
                font-size: 2.2rem;
            }
            .hero-subtitle {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-actions {
                justify-content: center;
            }
            .hero-image {
                max-width: 520px;
                margin: 0 auto;
            }
            .hero-section {
                min-height: auto;
                padding: 2rem 0;
            }
        }
        @media (max-width: 480px) {
            .hero-text h1 {
                font-size: 1.7rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 2rem;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius-md);
            transition: var(--transition);
            border: none;
            cursor: pointer;
            text-decoration: none;
            line-height: 1.4;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: var(--color-white);
            box-shadow: 0 4px 16px rgba(106, 13, 173, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(106, 13, 173, 0.4);
            color: var(--color-white);
            filter: brightness(1.08);
        }
        .btn-secondary {
            background: transparent;
            color: var(--color-white);
            border: 2px solid rgba(255, 255, 255, 0.3);
        }
        .btn-secondary:hover {
            border-color: var(--color-secondary);
            background: rgba(0, 229, 255, 0.08);
            color: var(--color-secondary);
            transform: translateY(-2px);
        }
        .btn-accent {
            background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
            color: var(--color-dark-bg);
            box-shadow: 0 4px 16px rgba(0, 229, 255, 0.3);
        }
        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 229, 255, 0.4);
            color: var(--color-dark-bg);
            filter: brightness(1.06);
        }
        .btn-outline-primary {
            background: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
        }
        .btn-outline-primary:hover {
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: var(--color-white);
            border-color: transparent;
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 0.5rem 1.25rem;
            font-size: 0.875rem;
        }
        .btn-lg {
            padding: 1rem 2.5rem;
            font-size: 1.1rem;
        }

        /* ===== Section Spacing ===== */
        .section {
            padding: 5rem 0;
        }
        .section-alt {
            background: var(--color-bg-alt);
        }
        .section-dark {
            background: var(--color-dark-bg);
            color: var(--color-white);
        }
        .section-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 0.75rem;
            color: var(--color-text);
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-light);
            max-width: 600px;
            margin-bottom: 2.5rem;
            line-height: 1.7;
        }
        .section-title-center {
            text-align: center;
        }
        .section-subtitle-center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }
        .section-title .gradient-text {
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        @media (max-width: 640px) {
            .section {
                padding: 3rem 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
            }
        }

        /* ===== Data Badges / Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .stat-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            text-align: center;
            box-shadow: var(--shadow-default);
            transition: var(--transition);
            border: 1px solid rgba(106, 13, 173, 0.04);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(106, 13, 173, 0.1);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            font-family: var(--font-heading);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-light);
            margin-top: 0.35rem;
            font-weight: 500;
        }
        .stat-badge {
            display: inline-block;
            background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
            border-radius: var(--radius-sm);
            padding: 0.2rem 0.6rem;
            font-size: 0.7rem;
            font-weight: 700;
            color: var(--color-dark-bg);
            margin-bottom: 0.5rem;
            letter-spacing: 0.02em;
        }

        @media (max-width: 800px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
            .stat-number {
                font-size: 2rem;
            }
        }
        @media (max-width: 400px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.75rem;
            }
            .stat-card {
                padding: 1.25rem 0.75rem;
            }
            .stat-number {
                font-size: 1.6rem;
            }
        }

        /* ===== Service Matrix (4列) ===== */
        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .service-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 2rem 1.5rem;
            box-shadow: var(--shadow-default);
            transition: var(--transition);
            border: 1px solid rgba(106, 13, 173, 0.04);
            position: relative;
            overflow: hidden;
        }
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }
        .service-card:nth-child(1)::before {
            background: linear-gradient(90deg, var(--color-primary), #8B2FD4);
        }
        .service-card:nth-child(2)::before {
            background: linear-gradient(90deg, var(--color-secondary), #33EEFF);
        }
        .service-card:nth-child(3)::before {
            background: linear-gradient(90deg, #7B4BFF, var(--color-accent));
        }
        .service-card:nth-child(4)::before {
            background: linear-gradient(90deg, #E040A0, #FF6BC1);
        }
        .service-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(106, 13, 173, 0.08);
        }
        .service-icon {
            font-size: 2.2rem;
            margin-bottom: 1rem;
            display: inline-block;
        }
        .service-card h3 {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--color-text);
        }
        .service-card p {
            font-size: 0.9rem;
            color: var(--color-text-light);
            line-height: 1.6;
        }
        .service-card .card-tag {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 600;
            padding: 0.15rem 0.6rem;
            border-radius: 20px;
            margin-bottom: 0.75rem;
            letter-spacing: 0.02em;
        }
        .service-card:nth-child(1) .card-tag {
            background: rgba(106, 13, 173, 0.1);
            color: var(--color-primary);
        }
        .service-card:nth-child(2) .card-tag {
            background: rgba(0, 229, 255, 0.12);
            color: #0099AA;
        }
        .service-card:nth-child(3) .card-tag {
            background: rgba(123, 75, 255, 0.1);
            color: #5B2BCC;
        }
        .service-card:nth-child(4) .card-tag {
            background: rgba(224, 64, 160, 0.1);
            color: #B02B80;
        }

        @media (max-width: 900px) {
            .matrix-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
        }
        @media (max-width: 480px) {
            .matrix-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .service-card {
                padding: 1.5rem 1.25rem;
            }
        }

        /* ===== Comparison Section ===== */
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 2rem;
            align-items: center;
        }
        .comparison-card {
            border-radius: var(--radius-lg);
            padding: 2rem 2rem 2.5rem;
            transition: var(--transition);
        }
        .comparison-card.traditional {
            background: var(--color-bg-alt);
            border: 1px solid var(--color-border);
            color: var(--color-text);
        }
        .comparison-card.modern {
            background: linear-gradient(135deg, var(--color-primary), #2D1B4E);
            border: 1px solid rgba(106, 13, 173, 0.2);
            color: var(--color-white);
            box-shadow: 0 8px 32px rgba(106, 13, 173, 0.15);
        }
        .comparison-card .cmp-label {
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            opacity: 0.6;
            margin-bottom: 1rem;
        }
        .comparison-card h3 {
            font-family: var(--font-heading);
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 1.25rem;
        }
        .comparison-card ul {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .comparison-card ul li {
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            font-size: 0.95rem;
            line-height: 1.5;
        }
        .comparison-card ul li i {
            margin-top: 0.2rem;
            flex-shrink: 0;
        }
        .comparison-card.traditional ul li i {
            color: #CC4444;
        }
        .comparison-card.modern ul li i {
            color: var(--color-secondary);
        }
        .comparison-divider {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.5rem;
            color: var(--color-primary);
            font-weight: 700;
        }
        .comparison-divider .arrow-line {
            width: 2px;
            flex: 1;
            min-height: 40px;
            background: linear-gradient(to bottom, var(--color-primary), var(--color-secondary));
        }
        .comparison-divider .vs-text {
            font-size: 1rem;
            font-weight: 800;
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: var(--color-white);
            letter-spacing: 0.05em;
        }
        .cmp-badge-number {
            display: inline-block;
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--color-secondary), #33EEFF);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-right: 0.25rem;
        }
        .comparison-card.modern .cmp-badge-number {
            background: linear-gradient(135deg, #66FFEE, var(--color-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        @media (max-width: 800px) {
            .comparison-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .comparison-divider {
                flex-direction: row;
                gap: 0.75rem;
            }
            .comparison-divider .arrow-line {
                width: 40px;
                height: 2px;
                min-height: auto;
                background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
            }
            .comparison-card {
                padding: 1.5rem;
            }
        }

        /* ===== FAQ Accordion ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(106, 13, 173, 0.04);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-default);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 1.1rem 1.5rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text);
            text-align: left;
            background: transparent;
            transition: var(--transition);
            gap: 1rem;
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            font-size: 0.85rem;
            color: var(--color-primary);
            transition: transform 0.3s ease;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 1.5rem;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 1.5rem 1.25rem;
        }
        .faq-answer p {
            font-size: 0.95rem;
            color: var(--color-text-light);
            line-height: 1.7;
        }

        /* ===== CTA Form Section ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary), #2D1B4E, #1A2A4E);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
            position: relative;
            z-index: 2;
        }
        .cta-text h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-white);
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        .cta-text p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.05rem;
            line-height: 1.7;
            max-width: 440px;
        }
        .cta-form-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 2rem;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
        }
        .cta-form-card .form-title {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 1.25rem;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-group label {
            display: block;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--color-text-light);
            margin-bottom: 0.3rem;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1.5px solid var(--color-border);
            border-radius: var(--radius-md);
            font-size: 0.95rem;
            color: var(--color-text);
            background: var(--color-bg);
            transition: var(--transition);
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 4px rgba(106, 13, 173, 0.08);
            background: var(--color-white);
            outline: none;
        }
        .form-group textarea {
            resize: vertical;
            min-height: 80px;
        }
        .form-group .btn {
            width: 100%;
            justify-content: center;
            margin-top: 0.5rem;
        }

        @media (max-width: 800px) {
            .cta-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .cta-text h2 {
                font-size: 1.6rem;
            }
            .cta-text p {
                max-width: 100%;
            }
            .cta-form-card {
                padding: 1.5rem;
            }
        }

        /* ===== Latest News / CMS Section ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }
        .news-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            box-shadow: var(--shadow-default);
            transition: var(--transition);
            border: 1px solid rgba(106, 13, 173, 0.04);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(106, 13, 173, 0.08);
        }
        .news-card .news-meta {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 0.6rem;
            flex-wrap: wrap;
        }
        .news-card .news-category {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 600;
            padding: 0.15rem 0.6rem;
            border-radius: 20px;
            background: rgba(106, 13, 173, 0.08);
            color: var(--color-primary);
        }
        .news-card .news-date {
            font-size: 0.8rem;
            color: var(--color-text-lighter);
        }
        .news-card h3 {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }
        .news-card .news-excerpt {
            font-size: 0.88rem;
            color: var(--color-text-light);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 0.75rem;
        }
        .news-card .news-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            transition: var(--transition);
            align-self: flex-start;
        }
        .news-card .news-link:hover {
            color: var(--color-accent);
            gap: 0.6rem;
        }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 3rem 1rem;
            color: var(--color-text-lighter);
            font-size: 1rem;
            background: var(--color-bg-alt);
            border-radius: var(--radius-lg);
        }

        @media (max-width: 640px) {
            .news-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .news-card {
                padding: 1.25rem;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: linear-gradient(135deg, #1A0A2E, #2D1B4E);
            color: rgba(255, 255, 255, 0.75);
            padding: 4rem 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1.2fr;
            gap: 3rem;
            padding-bottom: 2.5rem;
        }
        .footer-brand .footer-logo {
            font-family: var(--font-heading);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--color-white);
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .footer-brand .footer-logo .logo-icon {
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            border-radius: var(--radius-sm);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--color-white);
            font-size: 0.95rem;
            font-weight: 800;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 360px;
        }
        .footer-nav h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-white);
            margin-bottom: 1rem;
        }
        .footer-nav a {
            display: block;
            padding: 0.3rem 0;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
        }
        .footer-nav a:hover {
            color: var(--color-secondary);
            padding-left: 4px;
        }
        .footer-social h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-white);
            margin-bottom: 1rem;
        }
        .footer-social .social-icons {
            display: flex;
            gap: 0.75rem;
            flex-wrap: wrap;
        }
        .footer-social .social-icons a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.6);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .footer-social .social-icons a:hover {
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: var(--color-white);
            transform: translateY(-2px);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 1.25rem 0;
            text-align: center;
            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-secondary);
        }

        @media (max-width: 800px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .site-footer {
                padding: 2.5rem 0 0;
            }
        }

        /* ===== Utility ===== */
        .text-gradient {
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }

        /* ===== Animations ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-in {
            animation: fadeInUp 0.6s ease forwards;
        }
        .animate-in-d1 {
            animation-delay: 0.1s;
        }
        .animate-in-d2 {
            animation-delay: 0.2s;
        }
        .animate-in-d3 {
            animation-delay: 0.3s;
        }

        /* ===== Foundation Overrides ===== */
        .grid-container {
            max-width: var(--max-width) !important;
            padding-left: 1.5rem !important;
            padding-right: 1.5rem !important;
        }
        @media (max-width: 640px) {
            .grid-container {
                padding-left: 1rem !important;
                padding-right: 1rem !important;
            }
        }

/* roulang page: article */
/* ========== 设计变量 ========== */
        :root {
            --color-primary: #6A0DAD;
            --color-primary-dark: #4A0A7A;
            --color-secondary: #00E5FF;
            --color-accent: #B44BFF;
            --color-gradient-1: linear-gradient(135deg, #6A0DAD, #B44BFF);
            --color-gradient-2: linear-gradient(135deg, #6A0DAD, #00E5FF);
            --color-gradient-hero: linear-gradient(135deg, #1a0533 0%, #2d0a4a 40%, #0d2b3b 100%);
            --color-bg: #F8F9FA;
            --color-white: #FFFFFF;
            --color-text: #1A1A2E;
            --color-text-light: #5A5A7A;
            --color-text-muted: #9999B0;
            --color-border: #E8E8F0;
            --color-shadow: 0 4px 12px rgba(106, 13, 173, 0.08);
            --color-shadow-hover: 0 12px 24px rgba(106, 13, 173, 0.15);
            --radius-card: 16px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --radius-full: 30px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: "PingFang SC", "Microsoft YaHei", sans-serif;
            --font-body: "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-height: 70px;
        }

        /* ========== 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-body);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg);
            min-height: 100vh;
            padding-top: var(--header-height);
        }

        a { color: var(--color-primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--color-accent); }
        a:focus-visible { outline: 2px solid var(--color-secondary); outline-offset: 2px; border-radius: 4px; }

        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-text);
        }

        p { margin-bottom: 1rem; color: var(--color-text-light); }

        ul, ol { padding-left: 1.25rem; margin-bottom: 1rem; }

        /* ========== 容器 ========== */
        .s-container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.25rem;
            width: 100%;
        }

        /* ========== Header / 导航 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(106, 13, 173, 0.08);
            z-index: 1000;
            transition: var(--transition);
            box-shadow: 0 2px 20px rgba(106, 13, 173, 0.06);
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.98);
            box-shadow: 0 4px 30px rgba(106, 13, 173, 0.1);
        }

        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.25rem;
            height: 100%;
            display: flex;
            align-items: center;
            gap: 1.5rem;
        }

        /* Logo */
        .site-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            text-decoration: none;
            flex-shrink: 0;
        }
        .site-logo:hover { opacity: 0.9; }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--color-gradient-1);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.3rem;
            letter-spacing: -0.5px;
            box-shadow: 0 4px 10px rgba(106, 13, 173, 0.25);
        }

        .logo-text {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.35rem;
            background: var(--color-gradient-1);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: 0.5px;
        }

        /* 搜索框 */
        .nav-search {
            flex: 1;
            max-width: 420px;
            position: relative;
            margin: 0 1rem;
        }

        .nav-search .search-icon {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--color-text-muted);
            font-size: 0.9rem;
            pointer-events: none;
        }

        .nav-search input {
            width: 100%;
            height: 42px;
            padding: 0 1rem 0 2.8rem;
            border: 2px solid transparent;
            border-radius: var(--radius-full);
            background: #F0F0F8;
            font-family: var(--font-body);
            font-size: 0.92rem;
            color: var(--color-text);
            transition: var(--transition);
            outline: none;
        }

        .nav-search input::placeholder { color: var(--color-text-muted); }

        .nav-search input:focus {
            background: #fff;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 4px rgba(106, 13, 173, 0.1);
        }

        /* 导航链接 */
        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-shrink: 0;
        }

        .nav-links a {
            padding: 0.5rem 1.1rem;
            font-family: var(--font-heading);
            font-weight: 600;
            font-size: 0.92rem;
            color: var(--color-text-light);
            text-decoration: none;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            left: 1.1rem;
            right: 1.1rem;
            bottom: 4px;
            height: 2px;
            background: var(--color-gradient-1);
            border-radius: 2px;
            opacity: 0;
            transform: scaleX(0);
            transition: var(--transition);
        }

        .nav-links a:hover { color: var(--color-primary); background: rgba(106, 13, 173, 0.05); }
        .nav-links a:hover::after { opacity: 1; transform: scaleX(1); }

        .nav-links a.active {
            color: var(--color-primary);
            background: rgba(106, 13, 173, 0.08);
        }
        .nav-links a.active::after { opacity: 1; transform: scaleX(1); }

        /* 移动端汉堡按钮 */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--color-primary);
            cursor: pointer;
            padding: 0.4rem 0.6rem;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .nav-toggle:hover { background: rgba(106, 13, 173, 0.08); }

        /* ========== 面包屑 ========== */
        .breadcrumb-bar {
            background: linear-gradient(135deg, rgba(106, 13, 173, 0.04), rgba(0, 229, 255, 0.04));
            padding: 1rem 0;
            border-bottom: 1px solid var(--color-border);
        }

        .breadcrumb-bar .s-container {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
        }

        .breadcrumb-bar a {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            text-decoration: none;
        }
        .breadcrumb-bar a:hover { color: var(--color-primary); }

        .breadcrumb-bar .sep {
            color: var(--color-text-muted);
            font-size: 0.75rem;
        }

        .breadcrumb-bar .current {
            font-size: 0.85rem;
            color: var(--color-primary);
            font-weight: 600;
            max-width: 300px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        /* ========== 文章详情区 ========== */
        .article-section {
            padding: 3rem 0 4rem;
        }

        .article-wrapper {
            max-width: 800px;
            margin: 0 auto;
        }

        .article-header {
            margin-bottom: 2.5rem;
            text-align: center;
        }

        .article-header h1 {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.3;
            color: var(--color-text);
            margin-bottom: 1.2rem;
            letter-spacing: -0.3px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.88rem;
            color: var(--color-text-muted);
        }

        .article-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 0.35rem;
        }

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

        .article-meta .category-tag {
            display: inline-block;
            padding: 0.2rem 0.8rem;
            background: var(--color-gradient-1);
            color: #fff;
            border-radius: var(--radius-full);
            font-size: 0.78rem;
            font-weight: 600;
        }

        .article-featured-image {
            margin-bottom: 2.5rem;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--color-shadow);
        }

        .article-featured-image img {
            width: 100%;
            height: auto;
            aspect-ratio: 16 / 9;
            object-fit: cover;
        }

        .article-content {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--color-text);
        }

        .article-content p {
            margin-bottom: 1.4rem;
            color: var(--color-text);
            font-size: 1.05rem;
            line-height: 1.9;
        }

        .article-content p:first-of-type::first-letter {
            font-size: 3.2rem;
            font-weight: 700;
            float: left;
            padding-right: 0.5rem;
            line-height: 1;
            color: var(--color-primary);
            font-family: var(--font-heading);
        }

        .article-content h2, .article-content h3 {
            margin-top: 2rem;
            margin-bottom: 1rem;
            color: var(--color-text);
        }

        .article-content h2 { font-size: 1.6rem; border-left: 4px solid var(--color-primary); padding-left: 0.8rem; }
        .article-content h3 { font-size: 1.25rem; }

        .article-content blockquote {
            border-left: 4px solid var(--color-primary);
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            background: rgba(106, 13, 173, 0.04);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--color-text-light);
        }

        .article-content figure {
            margin: 1.5rem 0;
            text-align: center;
        }

        .article-content figure figcaption {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-top: 0.5rem;
        }

        .article-content ul, .article-content ol {
            margin-bottom: 1.4rem;
            padding-left: 1.5rem;
        }

        .article-content li {
            margin-bottom: 0.4rem;
            color: var(--color-text);
        }

        .article-content a {
            color: var(--color-primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-content a:hover { color: var(--color-accent); }

        .article-footer-bar {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 1px solid var(--color-border);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .article-footer-bar .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.65rem 1.5rem;
            background: var(--color-gradient-1);
            color: #fff;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }

        .article-footer-bar .btn-back:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(106, 13, 173, 0.3);
            color: #fff;
        }

        .article-footer-bar .btn-back i { font-size: 0.85rem; }

        /* ========== 相关推荐 ========== */
        .related-section {
            padding: 3rem 0 4rem;
            background: var(--color-white);
            border-top: 1px solid var(--color-border);
        }

        .related-section .section-title {
            text-align: center;
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 2rem;
            color: var(--color-text);
        }

        .related-section .section-title span {
            background: var(--color-gradient-1);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .related-card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--color-shadow);
            transition: var(--transition);
            border: 1px solid var(--color-border);
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--color-shadow-hover);
            border-color: transparent;
            background-clip: padding-box;
            position: relative;
        }

        .related-card:hover::before {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-card);
            padding: 2px;
            background: var(--color-gradient-1);
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
        }

        .related-card .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
        }

        .related-card .card-body {
            padding: 1.2rem 1.2rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-card .card-body h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card .card-body h3 a {
            color: var(--color-text);
            text-decoration: none;
        }
        .related-card .card-body h3 a:hover { color: var(--color-primary); }

        .related-card .card-body .card-excerpt {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0.8rem;
            flex: 1;
        }

        .related-card .card-body .card-meta-sm {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .related-card .card-body .card-meta-sm i { font-size: 0.7rem; color: var(--color-accent); }

        /* ========== 内容未找到 ========== */
        .not-found-box {
            text-align: center;
            padding: 4rem 2rem;
            background: var(--color-white);
            border-radius: var(--radius-card);
            box-shadow: var(--color-shadow);
        }

        .not-found-box i {
            font-size: 3.5rem;
            color: var(--color-text-muted);
            margin-bottom: 1rem;
        }

        .not-found-box h2 {
            font-size: 1.6rem;
            color: var(--color-text);
            margin-bottom: 0.8rem;
        }

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

        .not-found-box .btn-home {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 2rem;
            background: var(--color-gradient-1);
            color: #fff;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            text-decoration: none;
        }
        .not-found-box .btn-home:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(106, 13, 173, 0.3);
            color: #fff;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: linear-gradient(135deg, #1a0533 0%, #2d0a4a 40%, #0d2b3b 100%);
            color: rgba(255, 255, 255, 0.85);
            padding: 3.5rem 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1.2fr;
            gap: 2.5rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.4rem;
            font-weight: 800;
            margin-bottom: 1rem;
        }

        .footer-brand .footer-logo .logo-icon {
            width: 34px;
            height: 34px;
            font-size: 1.1rem;
        }

        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 0;
        }

        .footer-nav h4, .footer-social h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
        }

        .footer-nav a {
            display: block;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            padding: 0.3rem 0;
            transition: var(--transition);
        }
        .footer-nav a:hover { color: var(--color-secondary); padding-left: 4px; }

        .social-icons {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
        }

        .social-icons a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.15rem;
            transition: var(--transition);
            text-decoration: none;
        }
        .social-icons a:hover {
            background: var(--color-gradient-1);
            color: #fff;
            transform: translateY(-3px);
        }

        .footer-bottom {
            text-align: center;
            padding: 1.5rem 0;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.35);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.45);
            text-decoration: none;
        }
        .footer-bottom a:hover { color: var(--color-secondary); }

        /* ========== 移动端响应式 ========== */
        @media screen and (max-width: 1024px) {
            .nav-search { max-width: 280px; }
            .nav-links a { padding: 0.4rem 0.8rem; font-size: 0.85rem; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }

        @media screen and (max-width: 768px) {
            .header-inner { gap: 0.75rem; }

            .nav-search { display: none; }

            .nav-links {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 1rem 1.25rem;
                gap: 0.25rem;
                box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                pointer-events: none;
                z-index: 999;
                border-bottom: 2px solid var(--color-border);
            }

            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }

            .nav-links a {
                padding: 0.7rem 1rem;
                font-size: 1rem;
                width: 100%;
                text-align: left;
                border-radius: var(--radius-sm);
            }

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

            .nav-toggle { display: block; }

            /* 文章排版 */
            .article-header h1 { font-size: 1.6rem; }
            .article-content { font-size: 0.98rem; }
            .article-content p { font-size: 0.98rem; }
            .article-content p:first-of-type::first-letter { font-size: 2.4rem; }

            .article-meta { gap: 0.6rem; font-size: 0.82rem; }

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
                text-align: center;
            }

            .footer-nav a { padding: 0.4rem 0; }
            .social-icons { justify-content: center; }

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

        @media screen and (max-width: 520px) {
            .article-header h1 { font-size: 1.35rem; }
            .article-section { padding: 1.5rem 0 2.5rem; }
            .related-section { padding: 2rem 0 2.5rem; }

            .article-footer-bar { flex-direction: column; align-items: stretch; }
            .article-footer-bar .btn-back { justify-content: center; }

            .not-found-box { padding: 2.5rem 1.2rem; }
            .not-found-box h2 { font-size: 1.3rem; }
        }

        /* ========== 打印样式 ========== */
        @media print {
            .site-header, .site-footer, .breadcrumb-bar, .related-section, .article-footer-bar { display: none; }
            body { padding-top: 0; background: #fff; }
            .article-content p:first-of-type::first-letter { font-size: 2rem; }
        }

/* roulang page: category1 */
/* ========== Design Variables ========== */
        :root {
            --color-primary: #6A0DAD;
            --color-primary-dark: #4B0082;
            --color-secondary: #00E5FF;
            --color-accent: #B44BFF;
            --color-accent-light: #D08CFF;
            --color-bg: #F8F9FA;
            --color-bg-alt: #F0F2F5;
            --color-text: #1A1A2E;
            --color-text-light: #6B7280;
            --color-text-lighter: #9CA3AF;
            --color-border: rgba(106, 13, 173, 0.15);
            --color-card-bg: #FFFFFF;
            --radius-card: 16px;
            --radius-btn: 12px;
            --shadow-default: 0 4px 12px rgba(106, 13, 173, 0.08);
            --shadow-hover: 0 12px 24px rgba(106, 13, 173, 0.16);
            --transition-default: all 0.3s ease;
            --font-heading: "PingFang SC", "Microsoft YaHei", sans-serif;
            --font-body: "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

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

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

        body {
            font-family: var(--font-body);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
        }

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            line-height: 1.3;
            font-weight: 700;
            color: var(--color-text);
        }

        /* ========== Container ========== */
        .s-container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        @media (min-width: 1025px) {
            .s-container {
                padding: 0 2rem;
            }
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            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);
            z-index: 1000;
            transition: var(--transition-default);
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.98);
            box-shadow: 0 2px 20px rgba(106, 13, 173, 0.1);
        }

        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.5rem;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
        }

        @media (min-width: 1025px) {
            .header-inner {
                padding: 0 2rem;
            }
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            text-decoration: none;
            flex-shrink: 0;
        }

        .site-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            border-radius: 10px;
            color: #fff;
            font-weight: 800;
            font-size: 1.3rem;
            font-family: var(--font-heading);
            box-shadow: 0 4px 12px rgba(106, 13, 173, 0.3);
        }

        .site-logo .logo-text {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.45rem;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-search {
            flex: 1;
            max-width: 400px;
            position: relative;
            display: none;
        }

        @media (min-width: 768px) {
            .nav-search {
                display: block;
            }
        }

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

        .nav-search input {
            width: 100%;
            padding: 0.6rem 1rem 0.6rem 2.5rem;
            border: 1px solid var(--color-border);
            border-radius: 30px;
            background: var(--color-bg);
            font-size: 0.9rem;
            color: var(--color-text);
            transition: var(--transition-default);
        }

        .nav-search input::placeholder {
            color: var(--color-text-lighter);
        }

        .nav-search input:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(106, 13, 173, 0.12);
            background: #fff;
        }

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

        .nav-links a {
            padding: 0.5rem 1rem;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text);
            border-radius: 8px;
            transition: var(--transition-default);
            position: relative;
            white-space: nowrap;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 60%;
            height: 3px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
            border-radius: 4px;
            transition: transform 0.3s ease;
        }

        .nav-links a:hover::after,
        .nav-links a.active::after {
            transform: translateX(-50%) scaleX(1);
        }

        .nav-links a:hover {
            color: var(--color-primary);
            background: rgba(106, 13, 173, 0.06);
        }

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

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--color-text);
            cursor: pointer;
            padding: 0.4rem;
            border-radius: 8px;
            transition: var(--transition-default);
        }

        .nav-toggle:hover {
            background: rgba(106, 13, 173, 0.08);
        }

        @media (max-width: 767px) {
            .nav-links {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 1rem 1.5rem 2rem;
                gap: 0.25rem;
                border-bottom: 1px solid var(--color-border);
                box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
                transform: translateY(-120%);
                opacity: 0;
                visibility: hidden;
                transition: all 0.35s ease;
                align-items: stretch;
            }

            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }

            .nav-links a {
                padding: 0.75rem 1rem;
                font-size: 1rem;
            }

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

            .nav-toggle {
                display: block;
            }

            .nav-search {
                display: none;
            }

            .mobile-search-btn {
                display: block !important;
            }
        }

        @media (min-width: 768px) {
            .mobile-search-btn {
                display: none !important;
            }
        }

        .mobile-search-btn {
            background: none;
            border: none;
            font-size: 1.2rem;
            color: var(--color-text);
            cursor: pointer;
            padding: 0.4rem 0.6rem;
            border-radius: 8px;
            transition: var(--transition-default);
        }

        .mobile-search-btn:hover {
            background: rgba(106, 13, 173, 0.08);
        }

        /* ========== Page Banner ========== */
        .page-banner {
            position: relative;
            padding: 4rem 0 3.5rem;
            background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 40%, var(--color-accent) 100%);
            overflow: hidden;
            text-align: center;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }

        .page-banner .banner-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(0, 229, 255, 0.12) 0%, transparent 70%);
        }

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

        .page-banner h1 {
            font-size: 2.6rem;
            color: #fff;
            margin-bottom: 0.75rem;
            letter-spacing: 0.02em;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
        }

        .page-banner .banner-sub {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .page-banner .banner-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.6rem;
            margin-top: 1.5rem;
        }

        .page-banner .banner-tags span {
            display: inline-block;
            padding: 0.3rem 1rem;
            border-radius: 30px;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(4px);
            color: #fff;
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        @media (max-width: 767px) {
            .page-banner {
                padding: 2.8rem 0 2.5rem;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner .banner-sub {
                font-size: 0.95rem;
            }
        }

        /* ========== Section Shared ========== */
        .section-block {
            padding: 4rem 0;
        }

        .section-block-alt {
            padding: 4rem 0;
            background: var(--color-bg-alt);
        }

        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section-title h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--color-text);
        }

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

        .section-title .title-accent {
            display: inline-block;
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
            border-radius: 4px;
            margin-top: 0.8rem;
        }

        @media (max-width: 767px) {
            .section-block,
            .section-block-alt {
                padding: 2.5rem 0;
            }
            .section-title h2 {
                font-size: 1.5rem;
            }
            .section-title p {
                font-size: 0.95rem;
            }
        }

        /* ========== Cards ========== */
        .card-item {
            background: var(--color-card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-default);
            overflow: hidden;
            transition: var(--transition-default);
            border: 2px solid transparent;
            background-clip: padding-box;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .card-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--color-primary);
        }

        .card-item .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
            background: var(--color-bg-alt);
        }

        .card-item .card-body {
            padding: 1.25rem 1.25rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-item .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--color-text);
        }

        .card-item .card-body p {
            font-size: 0.92rem;
            color: var(--color-text-light);
            line-height: 1.6;
            flex: 1;
        }

        .card-item .card-body .card-tag {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            border-radius: 20px;
            background: rgba(106, 13, 173, 0.08);
            color: var(--color-primary);
            font-size: 0.78rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            align-self: flex-start;
        }

        .card-item .card-body .card-link {
            margin-top: 0.75rem;
            font-weight: 600;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

        .card-item .card-body .card-link i {
            font-size: 0.8rem;
            transition: var(--transition-default);
        }

        .card-item .card-body .card-link:hover i {
            transform: translateX(4px);
        }

        /* ========== Buttons ========== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 2rem;
            border: none;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: var(--transition-default);
            box-shadow: 0 4px 16px rgba(106, 13, 173, 0.25);
            text-decoration: none;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(106, 13, 173, 0.35);
            color: #fff;
            filter: brightness(1.08);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 1.8rem;
            border: 2px solid var(--color-primary);
            border-radius: var(--radius-btn);
            background: transparent;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: var(--transition-default);
            text-decoration: none;
        }

        .btn-secondary:hover {
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: #fff;
            border-color: transparent;
            transform: translateY(-2px);
        }

        /* ========== Feature Intro ========== */
        .feature-intro {
            display: flex;
            align-items: center;
            gap: 3rem;
        }

        .feature-intro .intro-text {
            flex: 1;
        }

        .feature-intro .intro-text h2 {
            font-size: 1.8rem;
            margin-bottom: 1rem;
        }

        .feature-intro .intro-text p {
            font-size: 1rem;
            color: var(--color-text-light);
            line-height: 1.8;
            margin-bottom: 1rem;
        }

        .feature-intro .intro-text ul {
            margin-top: 1rem;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

        .feature-intro .intro-text ul li {
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            font-size: 0.95rem;
            color: var(--color-text);
        }

        .feature-intro .intro-text ul li i {
            color: var(--color-secondary);
            font-size: 0.9rem;
            margin-top: 0.2rem;
            background: rgba(0, 229, 255, 0.12);
            padding: 0.2rem;
            border-radius: 50%;
        }

        .feature-intro .intro-img {
            flex: 0 0 380px;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-default);
        }

        .feature-intro .intro-img img {
            width: 100%;
            height: 280px;
            object-fit: cover;
        }

        @media (max-width: 1024px) {
            .feature-intro {
                flex-direction: column;
                gap: 2rem;
            }
            .feature-intro .intro-img {
                flex: 0 0 auto;
                width: 100%;
                max-width: 500px;
            }
            .feature-intro .intro-img img {
                height: 220px;
            }
        }

        @media (max-width: 767px) {
            .feature-intro .intro-text h2 {
                font-size: 1.4rem;
            }
        }

        /* ========== Highlight Cards (2 cols) ========== */
        .highlight-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
        }

        @media (max-width: 767px) {
            .highlight-grid {
                grid-template-columns: 1fr;
            }
        }

        .highlight-card {
            background: var(--color-card-bg);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-default);
            padding: 1.5rem 1.5rem 1.8rem;
            transition: var(--transition-default);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            flex-direction: column;
        }

        .highlight-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--color-accent);
        }

        .highlight-card .hc-icon {
            font-size: 2rem;
            color: var(--color-primary);
            margin-bottom: 0.75rem;
        }

        .highlight-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .highlight-card p {
            font-size: 0.92rem;
            color: var(--color-text-light);
            line-height: 1.7;
            flex: 1;
        }

        .highlight-card .hc-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
            margin-top: 0.75rem;
        }

        .highlight-card .hc-tags span {
            padding: 0.2rem 0.7rem;
            border-radius: 20px;
            background: rgba(106, 13, 173, 0.06);
            color: var(--color-primary);
            font-size: 0.78rem;
            font-weight: 500;
        }

        /* ========== List Section ========== */
        .related-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .related-list a {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.9rem 1.2rem;
            border-radius: var(--radius-card);
            background: var(--color-card-bg);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
            transition: var(--transition-default);
            color: var(--color-text);
            font-size: 0.95rem;
            border: 1px solid transparent;
        }

        .related-list a:hover {
            box-shadow: var(--shadow-default);
            border-color: var(--color-border);
            transform: translateX(4px);
            color: var(--color-primary);
        }

        .related-list a i {
            color: var(--color-primary);
            font-size: 0.9rem;
            width: 20px;
            text-align: center;
        }

        .related-list a .rl-tag {
            margin-left: auto;
            padding: 0.15rem 0.6rem;
            border-radius: 16px;
            background: rgba(106, 13, 173, 0.06);
            color: var(--color-primary);
            font-size: 0.78rem;
            font-weight: 500;
            white-space: nowrap;
        }

        /* ========== CTA Section ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary), var(--color-accent));
            padding: 4rem 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }

        .cta-section .s-container {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            font-size: 2rem;
            color: #fff;
            margin-bottom: 0.75rem;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 1.5rem;
        }

        .cta-section .btn-primary {
            background: #fff;
            color: var(--color-primary);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }

        .cta-section .btn-primary:hover {
            background: var(--color-secondary);
            color: var(--color-primary-dark);
            box-shadow: 0 8px 30px rgba(0, 229, 255, 0.3);
        }

        @media (max-width: 767px) {
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
        }

        /* ========== Footer ========== */
        .site-footer {
            background: linear-gradient(135deg, #1A0030 0%, #2D0060 50%, #1A0030 100%);
            color: rgba(255, 255, 255, 0.8);
            padding: 3.5rem 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1.2fr;
            gap: 2.5rem;
            margin-bottom: 2rem;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.3rem;
            color: #fff;
            margin-bottom: 0.75rem;
        }

        .footer-brand .footer-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            border-radius: 8px;
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
        }

        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 380px;
        }

        .footer-nav h4,
        .footer-social h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
        }

        .footer-nav a {
            display: block;
            padding: 0.3rem 0;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition-default);
        }

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

        .social-icons {
            display: flex;
            gap: 0.6rem;
            flex-wrap: wrap;
        }

        .social-icons a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.6);
            font-size: 1.1rem;
            transition: var(--transition-default);
        }

        .social-icons a:hover {
            background: var(--color-primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 1.2rem 0;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.3);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.4);
        }

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

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 767px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .footer-brand {
                grid-column: auto;
            }
        }

        /* ========== Mobile Search Overlay ========== */
        .search-overlay {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(12px);
            padding: 1rem 1.5rem;
            border-bottom: 1px solid var(--color-border);
            z-index: 999;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
        }

        .search-overlay.open {
            display: block;
        }

        .search-overlay input {
            width: 100%;
            padding: 0.7rem 1rem 0.7rem 2.8rem;
            border: 1px solid var(--color-border);
            border-radius: 30px;
            background: var(--color-bg);
            font-size: 0.95rem;
            color: var(--color-text);
        }

        .search-overlay input:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(106, 13, 173, 0.12);
        }

        .search-overlay .search-overlay-icon {
            position: absolute;
            left: 2rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--color-text-lighter);
        }

        /* ========== Responsive Helpers ========== */
        @media (max-width: 639px) {
            .hide-for-small-only {
                display: none !important;
            }
        }

        @media (min-width: 640px) and (max-width: 1024px) {
            .hide-for-medium-only {
                display: none !important;
            }
        }

        @media (min-width: 1025px) {
            .show-for-small-only,
            .show-for-medium-only {
                display: none !important;
            }
        }

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

        /* ========== Smooth Transitions ========== */
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

/* roulang page: category2 */
/* ===== Design Variables ===== */
        :root {
            --color-primary: #6A0DAD;
            --color-primary-light: #8B2FC9;
            --color-secondary: #00E5FF;
            --color-accent: #B44BFF;
            --color-dark: #1a0a2e;
            --color-bg: #F8F9FA;
            --color-white: #ffffff;
            --color-text: #1e1e2a;
            --color-text-light: #6b6b7a;
            --color-border: #e6e6f0;
            --color-footer-bg: #0f0520;
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-input: 20px;
            --shadow-default: 0 4px 12px rgba(106, 13, 173, 0.08);
            --shadow-hover: 0 12px 24px rgba(106, 13, 173, 0.16);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            --font-body: "Noto Sans SC", system-ui, -apple-system, sans-serif;
            --spacing-section: 4rem 0;
            --container-max: 1200px;
        }

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

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

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

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--color-accent);
        }
        a:focus-visible {
            outline: 2px solid var(--color-secondary);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        input,
        button,
        textarea {
            font-family: inherit;
            font-size: 1rem;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-text);
        }

        p {
            margin-bottom: 1rem;
            color: var(--color-text-light);
        }

        .s-container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(106, 13, 173, 0.08);
            transition: var(--transition);
            height: 70px;
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.98);
            box-shadow: 0 2px 20px rgba(106, 13, 173, 0.10);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 1.5rem;
            height: 70px;
            gap: 1rem;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }

        .site-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            border-radius: 10px;
            color: #fff;
            font-weight: 800;
            font-size: 1.3rem;
            font-family: var(--font-heading);
            box-shadow: 0 4px 10px rgba(106, 13, 173, 0.3);
        }

        .site-logo .logo-text {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.35rem;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-search {
            flex: 1;
            max-width: 400px;
            position: relative;
            display: flex;
            align-items: center;
        }

        .nav-search .search-icon {
            position: absolute;
            left: 14px;
            color: var(--color-text-light);
            font-size: 0.9rem;
            pointer-events: none;
        }

        .nav-search input[type="text"] {
            width: 100%;
            padding: 0.6rem 1rem 0.6rem 2.5rem;
            border-radius: var(--radius-input);
            border: 1px solid var(--color-border);
            background: rgba(248, 249, 250, 0.8);
            font-size: 0.9rem;
            transition: var(--transition);
            color: var(--color-text);
        }

        .nav-search input[type="text"]:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(106, 13, 173, 0.12);
            background: var(--color-white);
        }
        .nav-search input[type="text"]::placeholder {
            color: #aaa;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-shrink: 0;
        }

        .nav-links a {
            display: inline-block;
            padding: 0.45rem 1rem;
            border-radius: 8px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--color-text-light);
            transition: var(--transition);
            position: relative;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 60%;
            height: 3px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
            border-radius: 4px;
            transition: transform 0.3s ease;
        }

        .nav-links a:hover {
            color: var(--color-primary);
        }
        .nav-links a:hover::after {
            transform: translateX(-50%) scaleX(1);
        }

        .nav-links a.active {
            color: var(--color-primary);
            background: rgba(106, 13, 173, 0.06);
        }
        .nav-links a.active::after {
            transform: translateX(-50%) scaleX(1);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-primary);
            cursor: pointer;
            padding: 0.4rem;
            border-radius: 8px;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(106, 13, 173, 0.06);
        }
        .nav-toggle:focus-visible {
            outline: 2px solid var(--color-secondary);
            outline-offset: 2px;
        }

        /* Mobile Nav Overlay */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            height: calc(100vh - 70px);
            background: rgba(0, 0, 0, 0.4);
            z-index: 999;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .mobile-nav-overlay.open {
            opacity: 1;
        }

        .mobile-nav-panel {
            position: fixed;
            top: 70px;
            left: 0;
            width: 100%;
            max-height: calc(100vh - 70px);
            overflow-y: auto;
            background: var(--color-white);
            padding: 1.5rem;
            border-radius: 0 0 20px 20px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
            transform: translateY(-10px);
            opacity: 0;
            transition: var(--transition);
            z-index: 1000;
        }
        .mobile-nav-panel.open {
            transform: translateY(0);
            opacity: 1;
        }

        .mobile-nav-panel a {
            display: block;
            padding: 0.85rem 1rem;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--color-text);
            border-radius: 10px;
            transition: var(--transition);
            border-bottom: 1px solid var(--color-border);
        }
        .mobile-nav-panel a:last-child {
            border-bottom: none;
        }
        .mobile-nav-panel a:hover {
            background: rgba(106, 13, 173, 0.06);
            color: var(--color-primary);
        }
        .mobile-nav-panel a.active {
            background: rgba(106, 13, 173, 0.10);
            color: var(--color-primary);
            font-weight: 700;
        }

        /* ===== Hero Section ===== */
        .hero-section {
            position: relative;
            padding: 8rem 0 5rem;
            margin-top: 70px;
            background: linear-gradient(135deg, #1a0a2e 0%, #2d0f4e 40%, #0f2b3a 100%);
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 10, 46, 0.85) 0%, rgba(15, 43, 58, 0.70) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .hero-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 1rem;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }

        .hero-content h1 span {
            background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-content .hero-sub {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 2rem;
            line-height: 1.7;
        }

        .hero-badges {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        .hero-badges .badge-item {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.10);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            padding: 0.5rem 1.2rem;
            border-radius: 30px;
            color: #fff;
            font-size: 0.88rem;
            font-weight: 500;
        }

        .hero-badges .badge-item i {
            color: var(--color-secondary);
        }

        /* ===== Section Common ===== */
        .section-block {
            padding: var(--spacing-section);
        }

        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section-title h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 0.6rem;
        }

        .section-title h2 i {
            color: var(--color-primary);
            margin-right: 0.4rem;
        }

        .section-title p {
            font-size: 1rem;
            color: var(--color-text-light);
            max-width: 600px;
            margin: 0 auto;
        }

        .section-divider {
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
            border-radius: 4px;
            margin: 0.8rem auto 0;
        }

        /* ===== Intro Section (分类介绍) ===== */
        .intro-section {
            background: var(--color-white);
        }

        .intro-grid {
            display: flex;
            align-items: center;
            gap: 3rem;
            flex-wrap: wrap;
        }

        .intro-grid .intro-image {
            flex: 1 1 380px;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-default);
            transition: var(--transition);
        }
        .intro-grid .intro-image:hover {
            transform: scale(1.01);
            box-shadow: var(--shadow-hover);
        }
        .intro-grid .intro-image img {
            width: 100%;
            height: 300px;
            object-fit: cover;
        }

        .intro-grid .intro-text {
            flex: 1 1 380px;
        }

        .intro-grid .intro-text h3 {
            font-size: 1.6rem;
            margin-bottom: 1rem;
            color: var(--color-primary);
        }

        .intro-grid .intro-text p {
            font-size: 1rem;
            line-height: 1.8;
            color: var(--color-text-light);
        }

        .intro-features {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin-top: 1.5rem;
        }

        .intro-features span {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(106, 13, 173, 0.06);
            padding: 0.3rem 1rem;
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--color-primary);
            font-weight: 500;
        }

        .intro-features span i {
            color: var(--color-secondary);
            font-size: 0.75rem;
        }

        /* ===== Featured Section (重点推荐) ===== */
        .featured-section {
            background: var(--color-bg);
        }

        .featured-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.8rem;
        }

        .featured-card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-default);
            transition: var(--transition);
            border: 2px solid transparent;
            background-clip: padding-box;
        }

        .featured-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-image: linear-gradient(135deg, var(--color-primary), var(--color-secondary)) 1;
            border: 2px solid transparent;
        }

        .featured-card .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            transition: var(--transition);
        }

        .featured-card:hover .card-img {
            transform: scale(1.03);
        }

        .featured-card .card-body {
            padding: 1.5rem;
        }

        .featured-card .card-body h4 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        .featured-card .card-body p {
            font-size: 0.9rem;
            color: var(--color-text-light);
            margin-bottom: 0;
        }

        .featured-card .card-tag {
            display: inline-block;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: #fff;
            font-size: 0.7rem;
            font-weight: 600;
            padding: 0.2rem 0.8rem;
            border-radius: 12px;
            margin-bottom: 0.6rem;
            letter-spacing: 0.3px;
        }

        /* ===== Categories Section (资讯分类) ===== */
        .categories-section {
            background: var(--color-white);
        }

        .cat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
        }

        .cat-item {
            background: var(--color-bg);
            border-radius: var(--radius-card);
            padding: 2rem 1.5rem;
            text-align: center;
            transition: var(--transition);
            border: 1px solid var(--color-border);
            cursor: default;
        }

        .cat-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--color-primary);
        }

        .cat-item .cat-icon {
            font-size: 2.5rem;
            color: var(--color-primary);
            margin-bottom: 0.8rem;
            display: inline-block;
            background: rgba(106, 13, 173, 0.08);
            width: 70px;
            height: 70px;
            line-height: 70px;
            border-radius: 50%;
            transition: var(--transition);
        }

        .cat-item:hover .cat-icon {
            background: var(--color-primary);
            color: #fff;
            transform: scale(1.05);
        }

        .cat-item h5 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.3rem;
        }

        .cat-item p {
            font-size: 0.85rem;
            color: var(--color-text-light);
            margin-bottom: 0;
        }

        /* ===== Related Links Section ===== */
        .related-section {
            background: var(--color-bg);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 1.2rem;
        }

        .related-link-item {
            display: flex;
            align-items: center;
            gap: 1rem;
            background: var(--color-white);
            padding: 1.2rem 1.5rem;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-default);
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .related-link-item:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--color-primary);
        }

        .related-link-item .link-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
        }

        .related-link-item .link-text {
            font-weight: 600;
            color: var(--color-text);
            font-size: 0.98rem;
        }

        .related-link-item .link-text small {
            display: block;
            font-weight: 400;
            font-size: 0.78rem;
            color: var(--color-text-light);
            margin-top: 0.15rem;
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            background: var(--color-white);
        }

        .faq-list {
            max-width: 740px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }

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

        .faq-item:hover {
            box-shadow: var(--shadow-hover);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.2rem 1.5rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            transition: var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-heading);
            gap: 1rem;
        }

        .faq-question i {
            color: var(--color-primary);
            font-size: 1.1rem;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

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

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 1.5rem;
            background: rgba(255, 255, 255, 0.5);
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 1.5rem 1.2rem;
        }

        .faq-answer p {
            font-size: 0.92rem;
            color: var(--color-text-light);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: linear-gradient(135deg, #1a0a2e, #2d0f4e, #0f2b3a);
            position: relative;
            overflow: hidden;
            padding: 4.5rem 0;
        }

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

        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 650px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .cta-inner h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.8rem;
        }

        .cta-inner p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 2rem;
        }

        .cta-form {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
            max-width: 500px;
            margin: 0 auto;
        }

        .cta-form input[type="email"] {
            flex: 1 1 200px;
            padding: 0.75rem 1.2rem;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.10);
            color: #fff;
            font-size: 0.95rem;
            transition: var(--transition);
            backdrop-filter: blur(4px);
        }
        .cta-form input[type="email"]::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .cta-form input[type="email"]:focus {
            outline: none;
            border-color: var(--color-secondary);
            background: rgba(255, 255, 255, 0.18);
        }

        .cta-form button {
            padding: 0.75rem 2rem;
            border-radius: var(--radius-btn);
            border: none;
            background: linear-gradient(135deg, var(--color-secondary), #00b8d4);
            color: #0f0520;
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(0, 229, 255, 0.30);
        }
        .cta-form button:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 229, 255, 0.45);
            filter: brightness(1.08);
        }
        .cta-form button:focus-visible {
            outline: 2px solid var(--color-secondary);
            outline-offset: 2px;
        }

        .cta-note {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.4);
            margin-top: 1.2rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-footer-bg);
            color: rgba(255, 255, 255, 0.8);
            padding: 3.5rem 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 2.5rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.3rem;
            font-weight: 800;
            font-family: var(--font-heading);
            color: #fff;
            margin-bottom: 1rem;
        }

        .footer-brand .footer-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            border-radius: 10px;
            color: #fff;
            font-weight: 800;
            font-size: 1.2rem;
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .footer-nav h4,
        .footer-social h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
            font-family: var(--font-heading);
        }

        .footer-nav a {
            display: block;
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.88rem;
            padding: 0.3rem 0;
            transition: var(--transition);
        }
        .footer-nav a:hover {
            color: var(--color-secondary);
            padding-left: 4px;
        }

        .social-icons {
            display: flex;
            gap: 0.8rem;
            flex-wrap: wrap;
        }

        .social-icons a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.6);
            font-size: 1.1rem;
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.04);
        }
        .social-icons a:hover {
            background: var(--color-primary);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 6px 16px rgba(106, 13, 173, 0.30);
        }

        .footer-bottom {
            text-align: center;
            padding: 1.5rem 0;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.25);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.35);
            transition: var(--transition);
        }
        .footer-bottom a:hover {
            color: var(--color-secondary);
        }

        /* ===== Back to Top ===== */
        .back-to-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: #fff;
            border: none;
            font-size: 1.2rem;
            cursor: pointer;
            box-shadow: 0 4px 16px rgba(106, 13, 173, 0.30);
            transition: var(--transition);
            opacity: 0;
            transform: translateY(20px);
            pointer-events: none;
            z-index: 999;
        }
        .back-to-top.visible {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }
        .back-to-top:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 24px rgba(106, 13, 173, 0.45);
        }
        .back-to-top:focus-visible {
            outline: 2px solid var(--color-secondary);
            outline-offset: 4px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .nav-search {
                max-width: 180px;
            }
            .nav-search input[type="text"] {
                padding: 0.5rem 0.8rem 0.5rem 2.2rem;
                font-size: 0.82rem;
            }
            .hero-section {
                padding: 6rem 0 3rem;
                min-height: 320px;
            }
            .hero-content h1 {
                font-size: 1.8rem;
            }
            .hero-content .hero-sub {
                font-size: 0.95rem;
            }
            .section-title h2 {
                font-size: 1.5rem;
            }
            .intro-grid {
                flex-direction: column;
                gap: 1.5rem;
            }
            .intro-grid .intro-image img {
                height: 220px;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .cat-grid {
                grid-template-columns: 1fr 1fr;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .cta-inner h2 {
                font-size: 1.5rem;
            }
            .cta-form {
                flex-direction: column;
                align-items: center;
            }
            .cta-form input[type="email"] {
                width: 100%;
            }
            .cta-form button {
                width: 100%;
            }
            .hero-badges .badge-item {
                font-size: 0.78rem;
                padding: 0.35rem 0.9rem;
            }
            .back-to-top {
                bottom: 1.2rem;
                right: 1.2rem;
                width: 42px;
                height: 42px;
                font-size: 1rem;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                padding: 0 0.8rem;
                gap: 0.5rem;
            }
            .site-logo .logo-text {
                font-size: 1.1rem;
            }
            .site-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 1.1rem;
            }
            .nav-search {
                max-width: 120px;
            }
            .nav-search input[type="text"] {
                padding: 0.4rem 0.6rem 0.4rem 2rem;
                font-size: 0.75rem;
            }
            .hero-content h1 {
                font-size: 1.5rem;
            }
            .hero-content .hero-sub {
                font-size: 0.85rem;
            }
            .section-block {
                padding: 2.5rem 0;
            }
            .cat-grid {
                grid-template-columns: 1fr;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 1rem 1.2rem;
            }
            .faq-answer {
                padding: 0 1.2rem;
            }
            .faq-item.open .faq-answer {
                padding: 0 1.2rem 1rem;
            }
        }

        /* ===== Accessibility & Print ===== */
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition-duration: 0.01ms !important;
                animation-duration: 0.01ms !important;
            }
        }

        @media print {
            .site-header {
                position: static;
                box-shadow: none;
            }
            .hero-section {
                padding: 2rem 0;
                min-height: auto;
                background: #1a0a2e !important;
                -webkit-print-color-adjust: exact;
                print-color-adjust: exact;
            }
            .back-to-top {
                display: none;
            }
            .nav-toggle {
                display: none;
            }
            .cta-section {
                -webkit-print-color-adjust: exact;
                print-color-adjust: exact;
            }
        }