/* roulang page: index */
/* ========== 设计变量 ========== */
        :root {
            --primary: #0f2b4a;
            --primary-light: #1a4370;
            --primary-dark: #091a2e;
            --accent: #d4a13e;
            --accent-light: #e8bc5a;
            --accent-dark: #b8892f;
            --bg-light: #f5f7fa;
            --bg-white: #ffffff;
            --bg-dark: #0f2b4a;
            --text-primary: #1a2332;
            --text-body: #3d4a5c;
            --text-muted: #7a8799;
            --text-light: #ffffff;
            --border-color: #e2e8f0;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(15, 43, 74, 0.06);
            --shadow-md: 0 8px 30px rgba(15, 43, 74, 0.10);
            --shadow-lg: 0 20px 50px rgba(15, 43, 74, 0.14);
            --shadow-xl: 0 30px 70px rgba(15, 43, 74, 0.18);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ========== Reset / Base ========== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; }
        button, input, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; }
        button { cursor: pointer; background: none; }
        h1, h2, h3, h4, h5, h6 { color: var(--text-primary); font-weight: 700; line-height: 1.25; }
        h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
        h2 { font-size: clamp(1.6rem, 3.5vw, 2.6rem); }
        h3 { font-size: clamp(1.2rem, 2.5vw, 1.8rem); }
        h4 { font-size: clamp(1.05rem, 1.8vw, 1.3rem); }
        p { margin-bottom: 1rem; }
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; width: 100%; }

        /* ========== Foundation Overrides ========== */
        .grid-container { max-width: var(--max-width); padding-left: 24px; padding-right: 24px; }
        .grid-x { margin-left: -12px; margin-right: -12px; }
        .cell { padding-left: 12px; padding-right: 12px; }

        /* ========== Utility ========== */
        .section-padding { padding: 80px 0; }
        .section-title { text-align: center; margin-bottom: 16px; }
        .section-subtitle {
            text-align: center;
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto 48px;
        }
        .text-center { text-align: center; }
        .text-accent { color: var(--accent); }
        .bg-white { background: var(--bg-white); }
        .bg-light { background: var(--bg-light); }
        .bg-dark { background: var(--bg-dark); color: var(--text-light); }
        .bg-dark h2, .bg-dark h3, .bg-dark h4 { color: var(--text-light); }
        .bg-dark .text-muted { color: rgba(255,255,255,0.65); }
        .relative { position: relative; }
        .overflow-hidden { overflow: hidden; }

        /* ========== Buttons ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 34px;
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-md);
            transition: var(--transition);
            border: 2px solid transparent;
            letter-spacing: 0.3px;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(212, 161, 62, 0.35);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-light);
            border-color: rgba(255,255,255,0.5);
        }
        .btn-outline:hover {
            background: rgba(255,255,255,0.12);
            border-color: var(--text-light);
            color: var(--text-light);
            transform: translateY(-2px);
        }
        .btn-outline-primary {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline-primary:hover {
            background: var(--primary);
            color: var(--text-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(15, 43, 74, 0.20);
        }
        .btn-sm { padding: 10px 22px; font-size: 0.9rem; border-radius: var(--radius-sm); }
        .btn-lg { padding: 18px 44px; font-size: 1.1rem; border-radius: var(--radius-lg); }
        .btn:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

        /* ========== Header / Nav ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(15, 43, 74, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255,255,255,0.08);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(15, 43, 74, 0.98);
            box-shadow: 0 4px 30px rgba(0,0,0,0.25);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .site-logo i { color: var(--accent); font-size: 1.6rem; }
        .site-logo:hover { color: var(--accent); }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list li a {
            padding: 10px 20px;
            color: rgba(255,255,255,0.8);
            font-weight: 500;
            font-size: 0.95rem;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }
        .nav-list li a:hover { color: var(--text-light); background: rgba(255,255,255,0.08); }
        .nav-list li a.active {
            color: var(--accent);
            background: rgba(212, 161, 62, 0.12);
        }
        .nav-list li a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }
        .nav-cta a {
            background: var(--accent);
            color: var(--primary-dark) !important;
            font-weight: 700;
            padding: 10px 24px !important;
            border-radius: var(--radius-md) !important;
        }
        .nav-cta a:hover { background: var(--accent-light) !important; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(212,161,62,0.3); }
        .nav-toggle { display: none; color: var(--text-light); font-size: 1.5rem; padding: 8px; cursor: pointer; }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            padding-top: var(--header-height);
            background: var(--primary-dark);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.35;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,43,74,0.92) 0%, rgba(15,43,74,0.70) 50%, rgba(15,43,74,0.88) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            text-align: center;
            padding: 40px 24px 60px;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(212, 161, 62, 0.18);
            color: var(--accent-light);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 8px 24px;
            border-radius: 50px;
            border: 1px solid rgba(212, 161, 62, 0.25);
            margin-bottom: 28px;
            letter-spacing: 0.5px;
        }
        .hero h1 {
            color: var(--text-light);
            font-size: clamp(2.4rem, 6vw, 4.2rem);
            font-weight: 800;
            line-height: 1.12;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }
        .hero h1 span { color: var(--accent); }
        .hero p {
            color: rgba(255,255,255,0.7);
            font-size: clamp(1.05rem, 2vw, 1.3rem);
            max-width: 640px;
            margin: 0 auto 36px;
            line-height: 1.7;
        }
        .hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
        .hero-stats {
            display: flex;
            gap: 40px;
            justify-content: center;
            margin-top: 56px;
            flex-wrap: wrap;
        }
        .hero-stat { text-align: center; }
        .hero-stat .num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-light);
            line-height: 1.2;
        }
        .hero-stat .num span { color: var(--accent); }
        .hero-stat .label { color: rgba(255,255,255,0.5); font-size: 0.9rem; margin-top: 4px; }

        /* ========== Features / Core ========== */
        .features-grid { margin-top: 20px; }
        .feature-card {
            background: var(--bg-white);
            padding: 36px 28px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-color);
            height: 100%;
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            background: rgba(15, 43, 74, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: var(--primary);
            margin: 0 auto 20px;
            transition: var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: var(--primary);
            color: var(--accent);
        }
        .feature-card h3 { font-size: 1.2rem; margin-bottom: 12px; }
        .feature-card p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 0; }

        /* ========== Category Entry ========== */
        .category-grid { margin-top: 20px; }
        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 320px;
            display: flex;
            align-items: flex-end;
            background: var(--primary-dark);
            transition: var(--transition);
            cursor: pointer;
        }
        .category-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
            opacity: 0.5;
        }
        .category-card:hover img { transform: scale(1.05); opacity: 0.6; }
        .category-card .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15,43,74,0.9) 0%, rgba(15,43,74,0.2) 70%, transparent 100%);
            z-index: 1;
        }
        .category-card .info {
            position: relative;
            z-index: 2;
            padding: 36px 28px;
            width: 100%;
        }
        .category-card .info h3 { color: var(--text-light); font-size: 1.5rem; margin-bottom: 8px; }
        .category-card .info p { color: rgba(255,255,255,0.7); font-size: 0.95rem; margin-bottom: 16px; }
        .category-card .info .btn { padding: 10px 28px; font-size: 0.9rem; }
        .category-card .tag {
            display: inline-block;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 0.75rem;
            padding: 4px 14px;
            border-radius: 50px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        /* ========== Latest Posts / CMS List ========== */
        .post-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .post-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: transparent; }
        .post-card .thumb {
            width: 100%;
            height: 200px;
            object-fit: cover;
            background: var(--border-color);
        }
        .post-card .body { padding: 22px 24px 24px; flex: 1; display: flex; flex-direction: column; }
        .post-card .body .meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .post-card .body .meta .cat {
            background: rgba(15, 43, 74, 0.08);
            color: var(--primary);
            padding: 2px 12px;
            border-radius: 50px;
            font-weight: 600;
        }
        .post-card .body h4 { font-size: 1.05rem; margin-bottom: 10px; flex: 1; }
        .post-card .body h4 a { color: var(--text-primary); }
        .post-card .body h4 a:hover { color: var(--accent); }
        .post-card .body p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 16px; }
        .post-card .body .read-more {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .post-card .body .read-more:hover { color: var(--accent); gap: 10px; }
        .empty-state {
            text-align: center;
            padding: 60px 24px;
            color: var(--text-muted);
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-color);
        }
        .empty-state i { font-size: 3rem; color: var(--border-color); margin-bottom: 16px; display: block; }

        /* ========== Process / Steps ========== */
        .process-steps { margin-top: 20px; }
        .step-card {
            text-align: center;
            padding: 32px 20px;
            position: relative;
        }
        .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--accent);
            font-size: 1.5rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            border: 3px solid rgba(212, 161, 62, 0.2);
        }
        .step-card h4 { font-size: 1.15rem; margin-bottom: 8px; }
        .step-card p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 0; }
        .step-connector { display: none; }
        .grid-x .cell:not(:last-child) .step-connector { display: block; }

        /* ========== Stats / Data Block ========== */
        .stats-grid { margin-top: 20px; }
        .stat-block {
            text-align: center;
            padding: 40px 20px;
            background: rgba(255,255,255,0.06);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255,255,255,0.08);
            transition: var(--transition);
        }
        .stat-block:hover { background: rgba(255,255,255,0.10); transform: translateY(-4px); }
        .stat-block .num { font-size: 2.8rem; font-weight: 800; color: var(--accent); line-height: 1.2; }
        .stat-block .label { color: rgba(255,255,255,0.6); font-size: 0.95rem; margin-top: 8px; }

        /* ========== FAQ ========== */
        .faq-list { max-width: 780px; margin: 20px auto 0; }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item.active { border-color: var(--accent); box-shadow: 0 4px 16px rgba(212,161,62,0.12); }
        .faq-question {
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            font-size: 1rem;
            transition: var(--transition);
        }
        .faq-question:hover { color: var(--primary); }
        .faq-question i { color: var(--accent); transition: var(--transition); font-size: 1.1rem; }
        .faq-item.active .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-muted);
            font-size: 0.95rem;
            display: none;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer { display: block; }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--primary);
            background-image: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.10;
        }
        .cta-section h2 { color: var(--text-light); margin-bottom: 16px; }
        .cta-section p { color: rgba(255,255,255,0.65); max-width: 560px; margin: 0 auto 32px; font-size: 1.05rem; }
        .cta-section .btn { font-size: 1.1rem; padding: 18px 48px; }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.6);
            padding: 60px 0 0;
        }
        .footer-brand { margin-bottom: 20px; }
        .footer-brand .logo-text {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-brand .logo-text i { color: var(--accent); }
        .footer-brand p { margin-top: 16px; font-size: 0.9rem; max-width: 360px; }
        .footer-heading { color: var(--text-light); font-weight: 700; font-size: 1rem; margin-bottom: 16px; }
        .footer-links li { margin-bottom: 10px; }
        .footer-links li a { color: rgba(255,255,255,0.5); font-size: 0.9rem; }
        .footer-links li a:hover { color: var(--accent); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding: 24px 0;
            margin-top: 40px;
            font-size: 0.85rem;
            text-align: center;
            color: rgba(255,255,255,0.35);
        }
        .footer-bottom a { color: rgba(255,255,255,0.4); }
        .footer-bottom a:hover { color: var(--accent); }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .section-padding { padding: 60px 0; }
            .hero { min-height: 80vh; }
            .hero-stats { gap: 24px; }
            .hero-stat .num { font-size: 2rem; }
        }

        @media (max-width: 768px) {
            .nav-list { display: none; }
            .nav-toggle { display: block; }
            .nav-list.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--header-height);
                left: 0;
                width: 100%;
                background: rgba(15,43,74,0.98);
                padding: 16px 24px 24px;
                gap: 4px;
                border-bottom: 1px solid rgba(255,255,255,0.06);
            }
            .nav-list.open li a { padding: 14px 20px; width: 100%; }
            .nav-list.open li a.active::after { display: none; }
            .nav-cta a { text-align: center; }
            .hero { min-height: 70vh; }
            .hero h1 { font-size: clamp(1.8rem, 8vw, 2.8rem); }
            .hero p { font-size: 1rem; }
            .hero-stats { gap: 16px; flex-direction: column; align-items: center; }
            .section-padding { padding: 48px 0; }
            .category-card { height: 240px; }
            .step-card { padding: 20px 12px; }
            .stat-block .num { font-size: 2.2rem; }
            .cta-section { padding: 60px 0; }
            .site-footer .grid-x > .cell { margin-bottom: 32px; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .header-inner { padding: 0 16px; }
            .hero-content { padding: 24px 16px 40px; }
            .hero-actions { flex-direction: column; align-items: center; }
            .hero-actions .btn { width: 100%; max-width: 300px; }
            .section-subtitle { font-size: 0.95rem; }
            .post-card .thumb { height: 160px; }
            .faq-question { padding: 16px 18px; font-size: 0.95rem; }
            .faq-answer { padding: 0 18px 16px; }
            .btn-lg { padding: 14px 32px; font-size: 1rem; }
        }

        @media (min-width: 769px) {
            .step-connector {
                display: block !important;
                position: absolute;
                top: 44px;
                right: -30%;
                width: 60%;
                height: 2px;
                border-top: 2px dashed rgba(15,43,74,0.12);
                z-index: 0;
            }
            .step-card:last-child .step-connector { display: none !important; }
        }

/* roulang page: article */
:root {
            --primary: #1a3a6b;
            --primary-light: #2a5a9e;
            --primary-dark: #0f2444;
            --secondary: #e8a838;
            --secondary-light: #f0c060;
            --accent: #d9534f;
            --bg-body: #f5f7fb;
            --bg-card: #ffffff;
            --bg-dark: #0f2444;
            --text-primary: #1a2a3a;
            --text-secondary: #4a5a6a;
            --text-muted: #8a9aa8;
            --text-light: #f0f4f8;
            --border: #e2e8f0;
            --border-light: #f0f2f5;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(26,58,107,0.06);
            --shadow: 0 6px 24px rgba(26,58,107,0.10);
            --shadow-lg: 0 16px 48px rgba(26,58,107,0.14);
            --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --nav-height: 72px;
            --container-max: 1200px;
        }

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

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

        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--nav-height);
        }

        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover, a:focus { color: var(--primary-light); }
        a:focus-visible { outline: 3px solid var(--secondary); outline-offset: 2px; border-radius: 4px; }
        ul, ol { list-style: none; }
        button, input, textarea, select { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
        p { margin-bottom: 1rem; color: var(--text-secondary); }

        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; width: 100%; }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            height: var(--nav-height);
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(26,58,107,0.04);
            transition: background var(--transition), box-shadow var(--transition);
        }

        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            white-space: nowrap;
            transition: opacity var(--transition);
        }
        .site-logo i { color: var(--secondary); font-size: 1.6rem; }
        .site-logo:hover { opacity: 0.88; color: var(--primary); }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
        }
        .nav-list li a {
            display: block;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            position: relative;
        }
        .nav-list li a:hover {
            color: var(--primary);
            background: rgba(26,58,107,0.06);
        }
        .nav-list li a.active {
            color: var(--primary);
            background: rgba(26,58,107,0.08);
            font-weight: 600;
        }
        .nav-list li a.active::after {
            content: '';
            position: absolute; bottom: 4px; left: 50%; transform: translateX(-50%);
            width: 20px; height: 3px; background: var(--secondary); border-radius: 4px;
        }
        .nav-list li.nav-cta a {
            background: var(--primary);
            color: #fff;
            padding: 8px 22px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(26,58,107,0.20);
            transition: all var(--transition);
        }
        .nav-list li.nav-cta a:hover {
            background: var(--primary-light);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(26,58,107,0.25);
            color: #fff;
        }
        .nav-list li.nav-cta a i { margin-right: 6px; }

        .nav-toggle { display: none; font-size: 1.6rem; color: var(--primary); padding: 8px; }

        /* ===== Hero Banner ===== */
        .article-hero {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            padding: 60px 0 50px;
            position: relative;
            overflow: hidden;
            min-height: 220px;
            display: flex;
            align-items: center;
        }
        .article-hero::before {
            content: '';
            position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.12;
            mix-blend-mode: overlay;
        }
        .article-hero .container { position: relative; z-index: 2; }
        .article-hero h1 {
            color: #fff;
            font-size: 2.2rem;
            font-weight: 800;
            max-width: 800px;
            line-height: 1.35;
            margin-bottom: 12px;
            text-shadow: 0 2px 12px rgba(0,0,0,0.15);
        }
        .article-meta-bar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px 24px;
            color: rgba(255,255,255,0.85);
            font-size: 0.95rem;
        }
        .article-meta-bar i { margin-right: 6px; }
        .article-meta-bar .badge {
            background: var(--secondary);
            color: var(--primary-dark);
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 0.82rem;
        }

        /* ===== Article Body ===== */
        .article-main {
            padding: 48px 0 60px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }

        .article-content-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 40px 44px;
            border: 1px solid var(--border);
        }
        .article-content-card .content-body {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-primary);
        }
        .article-content-card .content-body p {
            margin-bottom: 1.2rem;
        }
        .article-content-card .content-body h2,
        .article-content-card .content-body h3 {
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
            font-weight: 700;
            color: var(--primary);
        }
        .article-content-card .content-body h2 { font-size: 1.5rem; }
        .article-content-card .content-body h3 { font-size: 1.25rem; }
        .article-content-card .content-body ul,
        .article-content-card .content-body ol {
            margin: 0.8rem 0 1.2rem 1.6rem;
        }
        .article-content-card .content-body li {
            margin-bottom: 0.4rem;
            color: var(--text-secondary);
        }
        .article-content-card .content-body a {
            color: var(--primary-light);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-content-card .content-body a:hover { color: var(--primary); }
        .article-content-card .content-body img {
            border-radius: var(--radius-sm);
            margin: 1.5rem auto;
            box-shadow: var(--shadow-sm);
        }
        .article-content-card .content-body blockquote {
            border-left: 4px solid var(--secondary);
            background: rgba(232,168,56,0.08);
            padding: 12px 20px;
            margin: 1.2rem 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-footer-meta {
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid var(--border);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }
        .article-footer-meta .tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .article-footer-meta .tag {
            background: var(--bg-body);
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 0.82rem;
            color: var(--text-secondary);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .article-footer-meta .tag:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
        .article-footer-meta .share-btns {
            display: flex;
            gap: 8px;
        }
        .article-footer-meta .share-btns a {
            width: 38px; height: 38px;
            display: flex; align-items: center; justify-content: center;
            border-radius: 50%;
            background: var(--bg-body);
            color: var(--text-secondary);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .article-footer-meta .share-btns a:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-2px); }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-widget {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 24px 20px;
            border: 1px solid var(--border);
        }
        .sidebar-widget h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--secondary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-widget h3 i { color: var(--secondary); }

        .sidebar-links li {
            margin-bottom: 10px;
        }
        .sidebar-links li a {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            background: var(--bg-body);
            transition: all var(--transition);
            font-size: 0.92rem;
            color: var(--text-secondary);
        }
        .sidebar-links li a:hover {
            background: rgba(26,58,107,0.06);
            color: var(--primary);
            transform: translateX(4px);
        }
        .sidebar-links li a i {
            color: var(--secondary);
            margin-top: 3px;
            font-size: 0.8rem;
        }

        .sidebar-cta-box {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            padding: 28px 20px;
            border-radius: var(--radius);
            text-align: center;
        }
        .sidebar-cta-box h4 {
            color: #fff;
            font-size: 1.2rem;
            margin-bottom: 10px;
        }
        .sidebar-cta-box p {
            color: rgba(255,255,255,0.8);
            font-size: 0.92rem;
            margin-bottom: 18px;
        }
        .sidebar-cta-box .btn-cta {
            display: inline-block;
            background: var(--secondary);
            color: var(--primary-dark);
            font-weight: 700;
            padding: 10px 28px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            font-size: 0.95rem;
        }
        .sidebar-cta-box .btn-cta:hover {
            background: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0,0,0,0.2);
            color: var(--primary-dark);
        }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }
        .not-found-box i {
            font-size: 3.6rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .not-found-box h2 {
            font-size: 1.6rem;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .not-found-box p {
            color: var(--text-secondary);
            margin-bottom: 20px;
        }
        .not-found-box .btn-home {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 10px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            transition: all var(--transition);
        }
        .not-found-box .btn-home:hover { background: var(--primary-light); transform: translateY(-2px); color: #fff; }

        /* ===== Related ===== */
        .related-section {
            margin-top: 48px;
            padding-top: 40px;
            border-top: 1px solid var(--border);
        }
        .related-section h2 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .related-section h2 i { color: var(--secondary); }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            padding: 20px 18px;
            transition: all var(--transition);
        }
        .related-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .related-card .rel-cat {
            font-size: 0.78rem;
            color: var(--secondary);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }
        .related-card h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 6px;
        }
        .related-card h4 a { color: var(--text-primary); }
        .related-card h4 a:hover { color: var(--primary); }
        .related-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.8);
            padding: 56px 0 32px;
            margin-top: 20px;
        }
        .site-footer .footer-brand .logo-text {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }
        .site-footer .footer-brand .logo-text i { color: var(--secondary); }
        .site-footer .footer-brand p {
            color: rgba(255,255,255,0.6);
            font-size: 0.92rem;
            line-height: 1.6;
        }
        .footer-heading {
            color: #fff;
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 8px;
        }
        .footer-heading::after {
            content: '';
            position: absolute; bottom: 0; left: 0;
            width: 32px; height: 3px;
            background: var(--secondary);
            border-radius: 4px;
        }
        .footer-links li { margin-bottom: 8px; }
        .footer-links li a {
            color: rgba(255,255,255,0.6);
            font-size: 0.92rem;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-links li a:hover { color: var(--secondary); transform: translateX(4px); }
        .footer-bottom {
            margin-top: 36px;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            text-align: center;
            font-size: 0.88rem;
            color: rgba(255,255,255,0.45);
        }
        .footer-bottom a { color: rgba(255,255,255,0.6); }
        .footer-bottom a:hover { color: var(--secondary); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }

        @media (max-width: 768px) {
            body { padding-top: 64px; }
            :root { --nav-height: 64px; }

            .nav-list {
                position: fixed; top: var(--nav-height); left: 0; right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(12px);
                -webkit-backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                box-shadow: 0 12px 32px rgba(0,0,0,0.1);
                transform: translateY(-120%);
                opacity: 0;
                transition: all 0.35s cubic-bezier(0.4,0,0.2,1);
                border-bottom: 2px solid var(--border);
                max-height: 80vh;
                overflow-y: auto;
                border-radius: 0 0 var(--radius) var(--radius);
            }
            .nav-list.open { transform: translateY(0); opacity: 1; }
            .nav-list li a { padding: 12px 16px; font-size: 1rem; width: 100%; }
            .nav-list li a.active::after { display: none; }
            .nav-list li.nav-cta a { text-align: center; }
            .nav-toggle { display: block; }

            .article-hero { padding: 40px 0 36px; min-height: 160px; }
            .article-hero h1 { font-size: 1.5rem; }
            .article-meta-bar { font-size: 0.85rem; gap: 8px 16px; }

            .article-content-card { padding: 24px 20px; }
            .article-content-card .content-body { font-size: 1rem; }

            .article-sidebar { grid-template-columns: 1fr; }

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

            .site-footer { padding: 40px 0 24px; }
            .site-footer .grid-x > .cell { margin-bottom: 24px; }
        }

        @media (max-width: 520px) {
            .article-hero h1 { font-size: 1.25rem; }
            .article-content-card { padding: 18px 14px; }
            .article-footer-meta { flex-direction: column; align-items: flex-start; }
            .article-footer-meta .share-btns { align-self: flex-end; }
            .sidebar-widget { padding: 18px 14px; }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a5c9e;
            --primary-dark: #0e3d6b;
            --primary-light: #2c7bc0;
            --accent: #f5a623;
            --accent-hover: #d48f1a;
            --bg-body: #f8fafc;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #0a1a2f;
            --bg-light: #eef4f9;
            --text-dark: #1a2a3a;
            --text-body: #3d4f5f;
            --text-weak: #7a8a9a;
            --text-white: #ffffff;
            --border-light: #e2e8f0;
            --border-card: #eef2f6;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.10);
            --shadow-hover: 0 16px 40px rgba(26, 92, 158, 0.14);
            --transition: all 0.25s ease;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

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

        /* ===== 工具类 ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-padding {
            padding: 80px 0;
        }
        .text-center {
            text-align: center;
        }
        .text-weak {
            color: var(--text-weak);
        }
        .mt-1 {
            margin-top: 12px;
        }
        .mt-2 {
            margin-top: 24px;
        }
        .mt-3 {
            margin-top: 40px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            line-height: 1.2;
            text-decoration: none;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(26, 92, 158, 0.30);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 92, 158, 0.35);
        }
        .btn-accent {
            background: var(--accent);
            color: #1a2a3a;
            box-shadow: 0 4px 14px rgba(245, 166, 35, 0.30);
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            color: #1a2a3a;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 166, 35, 0.40);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
            box-shadow: none;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 10px 22px;
            font-size: 0.9rem;
        }
        .btn-lg {
            padding: 18px 44px;
            font-size: 1.1rem;
        }
        .btn:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 3px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            z-index: 1000;
            transition: var(--transition);
        }
        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary-dark);
            letter-spacing: -0.3px;
            text-decoration: none;
        }
        .site-logo i {
            color: var(--accent);
            font-size: 1.6rem;
        }
        .site-logo:hover {
            color: var(--primary);
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
        }
        .nav-list li a {
            display: block;
            padding: 8px 18px;
            border-radius: 50px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-body);
            transition: var(--transition);
            text-decoration: none;
        }
        .nav-list li a:hover {
            background: var(--bg-light);
            color: var(--primary);
        }
        .nav-list li a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 10px rgba(26, 92, 158, 0.20);
        }
        .nav-list li.nav-cta a {
            background: var(--accent);
            color: #1a2a3a;
            font-weight: 700;
            padding: 8px 24px;
            box-shadow: 0 2px 10px rgba(245, 166, 35, 0.25);
        }
        .nav-list li.nav-cta a:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--text-dark);
            cursor: pointer;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
        }
        .nav-toggle:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Hero / Banner ===== */
        .page-banner {
            margin-top: var(--header-height);
            padding: 100px 0 80px;
            background: linear-gradient(135deg, #0a1a2f 0%, #1a5c9e 70%, #2c7bc0 100%);
            position: relative;
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.20;
            mix-blend-mode: overlay;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            text-align: center;
            color: #fff;
        }
        .page-banner h1 {
            font-size: 2.8rem;
            color: #fff;
            margin-bottom: 16px;
            text-shadow: 0 4px 20px rgba(0, 0, 0, 0.20);
        }
        .page-banner p {
            font-size: 1.2rem;
            opacity: 0.90;
            max-width: 640px;
            margin: 0 auto 24px;
            color: rgba(255, 255, 255, 0.92);
        }
        .page-banner .banner-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(6px);
            padding: 5px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.90);
            margin-bottom: 16px;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

        /* ===== 通用板块标题 ===== */
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 2.2rem;
            color: var(--text-dark);
            margin-bottom: 12px;
        }
        .section-title p {
            font-size: 1.1rem;
            color: var(--text-weak);
            max-width: 600px;
            margin: 0 auto;
        }
        .section-title .title-tag {
            display: inline-block;
            background: var(--bg-light);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 4px 16px;
            border-radius: 50px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        /* ===== 卡片通用 ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-card);
            transition: var(--transition);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .card-image {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
            display: block;
        }
        .card-body {
            padding: 24px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h3 {
            font-size: 1.25rem;
            margin-bottom: 8px;
        }
        .card-body p {
            color: var(--text-body);
            font-size: 0.95rem;
            flex: 1;
        }
        .card-body .card-tag {
            display: inline-block;
            background: var(--bg-light);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 50px;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .card-footer-link {
            margin-top: 16px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .card-footer-link i {
            font-size: 0.8rem;
            transition: var(--transition);
        }
        .card-footer-link:hover i {
            transform: translateX(4px);
        }

        /* ===== 步骤流程 ===== */
        .step-list {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            counter-reset: step-counter;
        }
        .step-item {
            flex: 1 1 220px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-card);
            position: relative;
            transition: var(--transition);
            text-align: center;
        }
        .step-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .step-item::before {
            counter-increment: step-counter;
            content: counter(step-counter);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 1.2rem;
            margin-bottom: 16px;
        }
        .step-item h4 {
            font-size: 1.1rem;
            margin-bottom: 6px;
        }
        .step-item p {
            font-size: 0.9rem;
            color: var(--text-weak);
            margin: 0;
        }

        /* ===== 登录方式卡片（特色） ===== */
        .method-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-card);
            transition: var(--transition);
            text-align: center;
            height: 100%;
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        .method-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .method-card .method-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: var(--primary);
            margin-bottom: 16px;
            transition: var(--transition);
        }
        .method-card:hover .method-icon {
            background: var(--primary);
            color: #fff;
        }
        .method-card h4 {
            font-size: 1.15rem;
            margin-bottom: 8px;
        }
        .method-card p {
            font-size: 0.9rem;
            color: var(--text-weak);
            flex: 1;
        }
        .method-card .badge {
            display: inline-block;
            background: #e8f5e9;
            color: #2e7d32;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 14px;
            border-radius: 50px;
            margin-top: 12px;
        }
        .method-card .badge.hot {
            background: #fff3e0;
            color: #e65100;
        }
        .method-card .badge.new {
            background: #e3f2fd;
            color: #0d47a1;
        }

        /* ===== 统计数字 ===== */
        .stat-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            justify-content: center;
        }
        .stat-item {
            flex: 1 1 180px;
            text-align: center;
            background: var(--bg-card);
            padding: 28px 16px 24px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-card);
        }
        .stat-item .number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .label {
            font-size: 0.95rem;
            color: var(--text-weak);
            margin-top: 4px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-card);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question i {
            color: var(--primary);
            transition: var(--transition);
            font-size: 0.9rem;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-body);
            font-size: 0.95rem;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }
        .faq-answer p {
            margin: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #0a1a2f 0%, #1a5c9e 60%, #2c7bc0 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.10;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-section .btn {
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.20);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 30px;
            font-size: 0.95rem;
        }
        .site-footer .footer-brand .logo-text {
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .site-footer .footer-brand .logo-text i {
            color: var(--accent);
        }
        .site-footer .footer-brand p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            line-height: 1.6;
        }
        .site-footer .footer-heading {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            margin-top: 0;
        }
        .site-footer .footer-links {
            list-style: none;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 8px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            text-decoration: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .site-footer .footer-links a:hover {
            color: #fff;
            transform: translateX(3px);
        }
        .footer-bottom {
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.60);
            text-decoration: none;
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .page-banner h1 {
                font-size: 2.2rem;
            }
            .section-title h2 {
                font-size: 1.8rem;
            }
            .stat-item .number {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                position: absolute;
                top: var(--header-height);
                left: 0;
                width: 100%;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                padding: 16px 24px 24px;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
                border-bottom: 1px solid var(--border-light);
                gap: 4px;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                padding: 12px 18px;
                border-radius: var(--radius-sm);
                width: 100%;
                text-align: center;
            }
            .nav-list li.nav-cta a {
                width: 100%;
                text-align: center;
            }
            .page-banner {
                padding: 80px 0 60px;
                min-height: 280px;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner p {
                font-size: 1rem;
            }
            .section-padding {
                padding: 56px 0;
            }
            .section-title {
                margin-bottom: 32px;
            }
            .section-title h2 {
                font-size: 1.5rem;
            }
            .step-list {
                gap: 20px;
            }
            .step-item {
                flex: 1 1 100%;
            }
            .stat-item {
                flex: 1 1 140px;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .site-footer .footer-brand {
                margin-bottom: 24px;
            }
            .site-footer .cell {
                margin-bottom: 24px;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                padding: 0 16px;
            }
            .site-logo {
                font-size: 1.2rem;
            }
            .site-logo i {
                font-size: 1.2rem;
            }
            .container {
                padding: 0 16px;
            }
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .page-banner p {
                font-size: 0.9rem;
            }
            .btn-lg {
                padding: 14px 28px;
                font-size: 1rem;
            }
            .card-image {
                height: 160px;
            }
            .stat-item {
                flex: 1 1 100%;
                max-width: 220px;
                margin: 0 auto;
            }
            .faq-question {
                font-size: 0.95rem;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.88rem;
            }
            .method-card {
                padding: 24px 16px 20px;
            }
        }

        /* ===== Foundation 覆盖 ===== */
        .grid-x {
            margin-left: -12px;
            margin-right: -12px;
        }
        .cell {
            padding-left: 12px;
            padding-right: 12px;
        }
        .grid-margin-x>.cell {
            margin-left: 0;
            margin-right: 0;
        }
        @media print,
        screen and (min-width: 64em) {
            .grid-margin-x>.cell {
                margin-left: 0;
                margin-right: 0;
            }
        }
        /* 修复 Foundation 按钮默认样式 */
        .button {
            transition: var(--transition);
        }

/* roulang page: category2 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #1a3c6e;
            --primary-light: #2a5a9e;
            --primary-dark: #0f2440;
            --secondary: #e8a838;
            --secondary-light: #f0c060;
            --accent: #3b8fc2;
            --success: #2d8f5c;
            --danger: #c0392b;
            --warning: #e67e22;
            --bg-body: #f5f7fa;
            --bg-card: #ffffff;
            --bg-dark: #0f1a2e;
            --bg-section-alt: #edf1f7;
            --text-primary: #1a2a3a;
            --text-secondary: #4a5a6a;
            --text-muted: #7a8a9a;
            --text-light: #f0f2f5;
            --border-color: #dce2ec;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(26, 60, 110, 0.06);
            --shadow-md: 0 6px 24px rgba(26, 60, 110, 0.10);
            --shadow-lg: 0 16px 48px rgba(26, 60, 110, 0.14);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-h: 72px;
        }

        /* ========== 基础重置 ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-family);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--primary);
            text-decoration: underline;
        }
        a:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
        }

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

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

        ul,
        ol {
            list-style: none;
        }

        /* ========== 容器 ========== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* ========== 头部导航 ========== */
        .site-header {
            background: var(--bg-card);
            box-shadow: 0 2px 16px rgba(26, 60, 110, 0.06);
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--header-h);
            border-bottom: 1px solid var(--border-color);
        }

        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.3px;
        }
        .site-logo i {
            color: var(--secondary);
            font-size: 1.5rem;
        }
        .site-logo:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--primary);
            cursor: pointer;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: var(--bg-section-alt);
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list li a {
            display: block;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
            position: relative;
        }
        .nav-list li a:hover {
            color: var(--primary);
            background: var(--bg-section-alt);
            text-decoration: none;
        }
        .nav-list li a.active {
            color: var(--primary);
            background: rgba(26, 60, 110, 0.07);
            font-weight: 600;
        }
        .nav-list li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background: var(--secondary);
            border-radius: 4px;
        }
        .nav-list li.nav-cta a {
            background: var(--primary);
            color: #fff;
            padding: 8px 22px;
            border-radius: var(--radius-md);
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(26, 60, 110, 0.20);
        }
        .nav-list li.nav-cta a:hover {
            background: var(--primary-light);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(26, 60, 110, 0.25);
            color: #fff;
        }
        .nav-list li.nav-cta a i {
            margin-right: 6px;
        }

        /* ========== 内页横幅 ========== */
        .page-banner {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            padding: 80px 0 64px;
            position: relative;
            overflow: hidden;
            min-height: 280px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .page-banner p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            line-height: 1.7;
        }
        .page-banner .banner-badge {
            display: inline-block;
            background: var(--secondary);
            color: var(--primary-dark);
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        /* ========== 板块通用 ========== */
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: var(--bg-section-alt);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-light);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-alt .section-title,
        .section-dark .section-title {
            color: #fff;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            margin-bottom: 40px;
            line-height: 1.6;
        }
        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== 卡片 ========== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition);
            border: 1px solid var(--border-color);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .card-image {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .card-body {
            padding: 24px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .card-body p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
        }
        .card-body .card-tag {
            display: inline-block;
            background: rgba(26, 60, 110, 0.08);
            color: var(--primary);
            padding: 2px 12px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .card-footer-link {
            margin-top: 14px;
            font-weight: 600;
            color: var(--primary-light);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.9rem;
        }
        .card-footer-link i {
            font-size: 0.8rem;
            transition: transform var(--transition);
        }
        .card-footer-link:hover i {
            transform: translateX(4px);
        }

        /* ========== 安全功能网格 ========== */
        .security-grid .grid-x {
            row-gap: 28px;
        }
        .security-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: #fff;
            margin-bottom: 16px;
            background: var(--primary);
        }
        .security-icon.gold {
            background: var(--secondary);
            color: var(--primary-dark);
        }
        .security-icon.teal {
            background: var(--accent);
        }
        .security-icon.green {
            background: var(--success);
        }
        .security-icon.rose {
            background: var(--danger);
        }
        .security-icon.purple {
            background: #7a4f9a;
        }
        .security-icon.orange {
            background: var(--warning);
        }

        .security-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            height: 100%;
        }
        .security-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .security-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .security-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ========== 统计数字 ========== */
        .stats-grid .stat-item {
            text-align: center;
            padding: 20px 12px;
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            letter-spacing: -1px;
        }
        .section-dark .stat-number {
            color: var(--secondary);
        }
        .stat-label {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-top: 6px;
            font-weight: 500;
        }
        .section-dark .stat-label {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ========== 步骤/流程 ========== */
        .step-list {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            counter-reset: step;
        }
        .step-item {
            flex: 1 1 220px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 22px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            position: relative;
            transition: all var(--transition);
        }
        .step-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .step-item::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: -12px;
            left: 20px;
            background: var(--secondary);
            color: var(--primary-dark);
            font-weight: 800;
            font-size: 1.1rem;
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            box-shadow: 0 4px 12px rgba(232, 168, 56, 0.30);
        }
        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            margin-top: 8px;
        }
        .step-item p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ========== FAQ ========== */
        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 18px 0;
        }
        .faq-item:first-child {
            padding-top: 0;
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.02rem;
            color: var(--text-primary);
            padding: 4px 0;
            user-select: none;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--primary-light);
        }
        .faq-question i {
            color: var(--text-muted);
            transition: transform var(--transition);
            font-size: 1rem;
        }
        .faq-question.open i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        .faq-answer.open {
            max-height: 300px;
            padding-top: 12px;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            padding: 72px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-button {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--secondary);
            color: var(--primary-dark);
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            box-shadow: 0 8px 28px rgba(232, 168, 56, 0.30);
            transition: all var(--transition);
            border: none;
            cursor: pointer;
        }
        .cta-button:hover {
            background: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 12px 36px rgba(232, 168, 56, 0.40);
            color: var(--primary-dark);
            text-decoration: none;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 28px;
        }
        .site-footer .footer-brand .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .site-footer .footer-brand .logo-text i {
            color: var(--secondary);
        }
        .site-footer .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .site-footer .footer-heading {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .site-footer .footer-links li {
            margin-bottom: 8px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .site-footer .footer-links a:hover {
            color: var(--secondary);
            text-decoration: none;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.10);
            padding-top: 20px;
            margin-top: 36px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a:hover {
            color: var(--secondary);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .page-banner h1 {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                position: absolute;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: var(--bg-card);
                box-shadow: var(--shadow-md);
                padding: 16px 24px 24px;
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                gap: 4px;
                border-top: 1px solid var(--border-color);
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                padding: 12px 16px;
                font-size: 1rem;
            }
            .nav-list li a.active::after {
                display: none;
            }
            .nav-list li.nav-cta {
                margin-top: 8px;
            }
            .nav-list li.nav-cta a {
                text-align: center;
                justify-content: center;
            }

            .page-banner {
                padding: 60px 0 48px;
                min-height: 200px;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner p {
                font-size: 1rem;
            }

            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
            }

            .security-card {
                padding: 20px 16px 18px;
            }
            .step-item {
                flex: 1 1 100%;
            }
            .stat-number {
                font-size: 2rem;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-button {
                padding: 12px 28px;
                font-size: 0.95rem;
            }

            .site-footer .footer-brand p {
                max-width: 100%;
            }
            .site-footer .grid-x>.cell {
                margin-bottom: 24px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .page-banner .banner-badge {
                font-size: 0.75rem;
                padding: 3px 12px;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .card-body {
                padding: 18px 16px 16px;
            }
            .card-body h3 {
                font-size: 1rem;
            }
            .security-icon {
                width: 46px;
                height: 46px;
                font-size: 1.3rem;
            }
            .stat-number {
                font-size: 1.7rem;
            }
            .faq-question {
                font-size: 0.95rem;
            }
        }

        /* ========== 辅助 ========== */
        .text-center {
            text-align: center;
        }
        .mb-1 {
            margin-bottom: 8px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .mb-3 {
            margin-bottom: 24px;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mt-3 {
            margin-top: 24px;
        }
        .gap-1 {
            gap: 12px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .rounded-full {
            border-radius: 999px;
        }

        /* Foundation 覆盖 */
        .grid-container {
            max-width: var(--max-width);
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 520px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        .cell {
            margin-bottom: 0;
        }
        .grid-x.grid-margin-x .cell {
            margin-bottom: 0;
        }