/* roulang page: index */
:root {
            --color-primary: #ff4655;
            --color-primary-dark: #d93642;
            --color-primary-light: #ff6b77;
            --color-secondary: #0f1923;
            --color-bg: #0a1018;
            --color-bg-card: #131d2a;
            --color-text: #ffffff;
            --color-text-soft: #b0b8c1;
            --color-border: rgba(255,255,255,0.08);
            --color-glass: rgba(19,29,42,0.7);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 4px 12px rgba(0,0,0,0.3);
            --shadow-md: 0 12px 28px rgba(0,0,0,0.5);
            --shadow-glow: 0 0 20px rgba(255,70,85,0.3);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
        }

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

        body {
            margin: 0;
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

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

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

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* TOP INFO BAR */
        .top-bar {
            background: rgba(15,25,35,0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255,255,255,0.04);
            font-size: 0.85rem;
            color: var(--color-text-soft);
        }
        .top-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 8px 24px;
        }
        .top-bar__domain {
            opacity: 0.7;
        }
        .top-bar__actions {
            display: flex;
            gap: 20px;
        }
        .top-bar__actions a {
            color: var(--color-text-soft);
            transition: color 0.2s;
        }
        .top-bar__actions a:hover {
            color: var(--color-primary);
        }

        /* HEADER / NAV */
        .header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(10,16,24,0.88);
            backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-border);
            transition: background 0.3s;
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.3px;
            color: var(--color-text);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .logo span {
            background: linear-gradient(135deg, var(--color-primary) 0%, #ff9a4b 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav ul {
            list-style: none;
            display: flex;
            gap: 36px;
            margin: 0;
            padding: 0;
        }
        .nav a {
            font-weight: 500;
            color: var(--color-text-soft);
            position: relative;
            padding: 8px 0;
        }
        .nav a:hover,
        .nav a.active {
            color: var(--color-text);
        }
        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            box-shadow: 0 0 8px var(--color-primary);
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.8rem;
            padding: 4px;
        }

        /* HERO */
        .hero {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 30%;
            background-repeat: no-repeat;
            color: white;
            overflow: hidden;
        }
        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10,16,24,0.4) 0%, rgba(10,16,24,0.85) 90%);
        }
        .hero__content {
            position: relative;
            z-index: 2;
            max-width: 680px;
        }
        .hero__tagline {
            display: inline-block;
            background: rgba(255,70,85,0.12);
            border: 1px solid rgba(255,70,85,0.4);
            color: var(--color-primary-light);
            padding: 6px 20px;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 20px;
        }
        .hero__title {
            font-size: clamp(2.8rem, 7vw, 4.5rem);
            font-weight: 900;
            line-height: 1.1;
            margin: 0 0 24px;
            text-shadow: 0 4px 30px rgba(0,0,0,0.5);
        }
        .hero__title span {
            background: linear-gradient(to right, #fff, #ffb4b4);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero__desc {
            font-size: 1.15rem;
            color: var(--color-text-soft);
            margin-bottom: 40px;
            max-width: 520px;
            line-height: 1.7;
        }
        .hero__actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            transition: all 0.25s;
            border: none;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--color-primary);
            color: white;
            box-shadow: 0 8px 24px rgba(255,70,85,0.4);
        }
        .btn-primary:hover {
            background: var(--color-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(255,70,85,0.5);
        }
        .btn-ghost {
            background: transparent;
            border: 1px solid rgba(255,255,255,0.3);
            color: white;
            backdrop-filter: blur(6px);
        }
        .btn-ghost:hover {
            background: rgba(255,255,255,0.08);
            border-color: rgba(255,255,255,0.6);
            transform: translateY(-2px);
        }

        /* SECTIONS */
        .section {
            padding: 90px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }
        .section-header h2 {
            font-size: 2.4rem;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .section-header p {
            color: var(--color-text-soft);
            font-size: 1.1rem;
            max-width: 580px;
            margin: 0 auto;
        }

        /* FEATURES */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 32px;
        }
        .feature-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 36px 28px;
            transition: transform 0.25s, box-shadow 0.25s;
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(to bottom, var(--color-primary), transparent);
            opacity: 0;
            transition: opacity 0.3s;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(255,70,85,0.25);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            background: rgba(255,70,85,0.1);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--color-primary);
        }
        .feature-card h3 {
            font-size: 1.3rem;
            margin: 0 0 10px;
        }
        .feature-card p {
            color: var(--color-text-soft);
            line-height: 1.6;
            margin: 0;
        }

        /* CATEGORY ENTRANCE */
        .category-slider {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 280px;
            box-shadow: var(--shadow-sm);
        }
        .category-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        .category-card:hover img {
            transform: scale(1.05);
        }
        .category-card__overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(10,16,24,0.9) 0%, transparent 70%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 32px;
        }
        .category-card__title {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: 8px;
        }
        .category-card__count {
            color: var(--color-text-soft);
            font-size: 0.9rem;
        }

        /* CMS LIST */
        .posts-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .post-item {
            display: flex;
            gap: 28px;
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 20px;
            border: 1px solid var(--color-border);
            transition: 0.2s;
            align-items: center;
        }
        .post-item:hover {
            border-color: rgba(255,70,85,0.35);
            box-shadow: var(--shadow-sm);
        }
        .post-item__thumb {
            width: 100px;
            height: 100px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }
        .post-item__content h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin: 0 0 6px;
            line-height: 1.4;
        }
        .post-item__content h3 a {
            color: white;
        }
        .post-item__content h3 a:hover {
            color: var(--color-primary-light);
        }
        .post-item__meta {
            font-size: 0.85rem;
            color: var(--color-text-soft);
        }
        .post-item__desc {
            color: var(--color-text-soft);
            font-size: 0.95rem;
            margin-top: 6px;
        }
        .empty-posts {
            text-align: center;
            padding: 40px;
            color: var(--color-text-soft);
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
        }

        /* STATS */
        .stats {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .stat-box {
            background: rgba(255,255,255,0.03);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 32px 40px;
            text-align: center;
            min-width: 180px;
            backdrop-filter: blur(10px);
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--color-primary) 0%, #ff9a4b 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .stat-label {
            color: var(--color-text-soft);
            margin-top: 8px;
        }

        /* FAQ */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            margin-bottom: 16px;
            overflow: hidden;
        }
        .faq-question {
            width: 100%;
            background: transparent;
            border: none;
            color: white;
            padding: 24px 28px;
            font-size: 1.1rem;
            font-weight: 600;
            text-align: left;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .faq-question::after {
            content: '+';
            font-size: 1.5rem;
            transition: transform 0.3s;
        }
        .faq-item.open .faq-question::after {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            background: rgba(0,0,0,0.2);
            color: var(--color-text-soft);
            padding: 0 28px;
        }
        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 20px 28px;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--color-secondary) 0%, #1c2938 100%);
            border: 1px solid rgba(255,70,85,0.15);
            border-radius: var(--radius-lg);
            text-align: center;
            padding: 72px 24px;
            margin: 0 24px 90px;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-section p {
            color: var(--color-text-soft);
            max-width: 500px;
            margin: 0 auto 32px;
            font-size: 1.1rem;
        }

        /* FOOTER */
        .footer {
            background: var(--color-secondary);
            padding: 60px 0 30px;
            border-top: 1px solid var(--color-border);
        }
        .footer-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 40px;
        }
        .footer-brand h3 {
            font-size: 1.6rem;
            font-weight: 800;
            margin-bottom: 8px;
        }
        .footer-brand p {
            color: var(--color-text-soft);
        }
        .footer-links {
            display: flex;
            gap: 64px;
            flex-wrap: wrap;
        }
        .footer-col h4 {
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col li {
            margin-bottom: 10px;
        }
        .footer-col a {
            color: var(--color-text-soft);
            transition: color 0.2s;
        }
        .footer-col a:hover {
            color: white;
        }
        .footer-bottom {
            margin-top: 48px;
            padding-top: 24px;
            border-top: 1px solid var(--color-border);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            color: var(--color-text-soft);
            font-size: 0.85rem;
        }

        /* RESPONSIVE */
        @media (max-width: 1024px) {
            .hero {
                min-height: 70vh;
            }
            .section {
                padding: 60px 0;
            }
        }

        @media (max-width: 768px) {
            .header .container {
                height: 64px;
            }
            .nav {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            .hero__title {
                font-size: 2.4rem;
            }
            .stats {
                flex-direction: column;
                align-items: center;
            }
            .post-item {
                flex-direction: column;
                align-items: flex-start;
            }
            .category-slider {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                flex-direction: column;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero__actions {
                flex-direction: column;
                width: 100%;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: article */
:root {
            --primary: #e60012;
            --primary-dark: #b3000f;
            --secondary: #ffd700;
            --bg-dark: #0a0a0a;
            --bg-card: #141414;
            --text-primary: #f5f5f5;
            --text-secondary: #cccccc;
            --text-muted: #999999;
            --border: #2a2a2a;
            --border-light: #3a3a3a;
            --radius-sm: 6px;
            --radius: 10px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.4);
            --shadow: 0 4px 16px rgba(0,0,0,0.5);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.6);
            --transition: 0.25s ease;
            --section-gap: 70px;
            --container-max: 1200px;
            --font-sans: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; color: inherit; transition: color var(--transition); }
        ul { list-style: none; padding: 0; }
        button { cursor: pointer; border: none; background: none; font-family: inherit; }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Top Info Bar */
        .top-bar {
            background: #1c1c1c;
            border-bottom: 1px solid var(--border);
            font-size: 0.85rem;
            color: var(--text-muted);
            padding: 6px 0;
        }
        .top-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }
        .top-bar a {
            color: var(--text-secondary);
            font-weight: 500;
            transition: color var(--transition);
        }
        .top-bar a:hover { color: var(--secondary); }

        /* Main Header */
        .site-header {
            background-color: #0d0d0d;
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(8px);
            background-color: rgba(13,13,13,0.85);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }
        .logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: 1px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .logo span { color: var(--primary); }
        .nav ul {
            display: flex;
            gap: 28px;
            align-items: center;
        }
        .nav a {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-secondary);
            position: relative;
            padding: 4px 0;
        }
        .nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: width var(--transition);
        }
        .nav a:hover { color: #fff; }
        .nav a:hover::after, .nav a.active::after { width: 100%; }
        .nav a.active { color: #fff; }
        .header-actions { display: flex; align-items: center; gap: 12px; }
        .btn-outline {
            border: 1px solid var(--border-light);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-primary);
            background: transparent;
            transition: all var(--transition);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(230,0,18,0.05);
        }
        .menu-toggle {
            display: none;
            font-size: 1.5rem;
            color: #fff;
            padding: 6px;
        }

        /* Article Hero Banner */
        .article-hero {
            position: relative;
            height: 380px;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            display: flex;
            align-items: flex-end;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, #0a0a0a 0%, transparent 70%);
        }
        .article-hero .container {
            position: relative;
            z-index: 2;
            padding-bottom: 40px;
        }
        .article-meta {
            display: flex;
            gap: 16px;
            align-items: center;
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .category-badge {
            background: var(--primary);
            color: #fff;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.5px;
        }
        .article-date, .article-author {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }
        .article-title {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.25;
            color: #fff;
            max-width: 800px;
            text-shadow: 0 2px 12px rgba(0,0,0,0.6);
        }

        /* Main content layout */
        .article-main {
            padding: 50px 0 60px;
        }
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            max-width: 900px;
            margin: 0 auto;
        }
        .article-body p {
            margin-bottom: 1.5em;
            color: var(--text-secondary);
            font-size: 1.05rem;
        }
        .article-body h2, .article-body h3 {
            color: #fff;
            margin-top: 2em;
            margin-bottom: 0.8em;
        }
        .article-body img {
            border-radius: var(--radius);
            margin: 24px 0;
        }
        .article-body a {
            color: var(--secondary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-body a:hover { color: var(--primary); }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            padding-left: 20px;
            margin: 24px 0;
            color: var(--text-muted);
            font-style: italic;
        }
        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 32px;
            color: var(--text-secondary);
            font-weight: 600;
            transition: color var(--transition);
        }
        .back-link:hover { color: var(--primary); }
        .not-found {
            text-align: center;
            padding: 80px 20px;
        }
        .not-found h2 {
            font-size: 2rem;
            color: #fff;
            margin-bottom: 16px;
        }
        .not-found p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        /* Footer */
        .footer {
            background: #0d0d0d;
            border-top: 1px solid var(--border);
            padding: 50px 0 30px;
            margin-top: 60px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .footer-brand p { color: var(--text-muted); font-size: 0.95rem; }
        .footer-links {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover { color: var(--secondary); }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            color: var(--text-muted);
            font-size: 0.85rem;
            flex-wrap: wrap;
            gap: 10px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .article-hero { height: 300px; }
            .article-title { font-size: 1.8rem; }
            .article-body { padding: 30px; }
        }
        @media (max-width: 768px) {
            .nav { display: none; }
            .menu-toggle { display: block; }
            .header-inner { flex-wrap: wrap; }
            .nav.mobile-open {
                display: block;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #141414;
                padding: 20px;
                border-bottom: 1px solid var(--border);
            }
            .nav.mobile-open ul { flex-direction: column; gap: 16px; }
            .footer-grid { grid-template-columns: 1fr; }
            .article-hero { height: 250px; }
            .article-title { font-size: 1.5rem; }
            .article-body { padding: 24px; }
        }
        @media (max-width: 520px) {
            .top-bar .container { flex-direction: column; align-items: flex-start; }
            .article-hero { height: 220px; }
            .article-title { font-size: 1.3rem; }
            .article-body { padding: 20px; font-size: 0.95rem; }
            .footer-bottom { flex-direction: column; }
        }

/* roulang page: category1 */
/* ========================================
           设计变量 Design Tokens
           ======================================== */
        :root {
            /* 主色体系 - 深空蓝紫调 */
            --color-primary: #1a1a32;
            --color-primary-light: #252550;
            --color-primary-dark: #0f0f1e;
            --color-accent: #e94560;
            --color-accent-hover: #ff5a78;
            --color-accent-glow: rgba(233, 68, 96, 0.35);
            --color-gold: #f0a500;
            --color-gold-light: #ffc940;
            --color-gold-dim: rgba(240, 165, 0, 0.25);

            /* 背景 */
            --bg-page: #0a0a14;
            --bg-surface: #111122;
            --bg-card: #16162d;
            --bg-card-hover: #1c1c38;
            --bg-elevated: #1e1e3a;
            --bg-overlay: rgba(0, 0, 0, 0.65);
            --bg-overlay-light: rgba(0, 0, 0, 0.35);

            /* 文字 */
            --text-primary: #e8e8f0;
            --text-secondary: #b0b0c4;
            --text-muted: #7a7a94;
            --text-on-dark: #f5f5fa;
            --text-accent: #ff6b81;

            /* 边框 */
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-card: rgba(255, 255, 255, 0.1);
            --border-active: rgba(233, 68, 96, 0.5);
            --border-gold: rgba(240, 165, 0, 0.4);

            /* 圆角 */
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --radius-full: 9999px;

            /* 阴影 */
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 40px rgba(233, 68, 96, 0.25);
            --shadow-card-hover: 0 12px 36px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 255, 255, 0.06);

            /* 间距 */
            --space-xs: 0.5rem;
            --space-sm: 0.75rem;
            --space-md: 1rem;
            --space-lg: 1.5rem;
            --space-xl: 2rem;
            --space-2xl: 3rem;
            --space-3xl: 4rem;
            --space-4xl: 6rem;

            /* 字体 */
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-display: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', var(--font-sans);

            /* 过渡 */
            --transition-fast: 0.18s ease-out;
            --transition-base: 0.28s ease-out;
            --transition-slow: 0.4s ease-out;

            /* 容器 */
            --container-max: 1280px;
            --container-padding: 1.5rem;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-page);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            letter-spacing: 0.015em;
        }

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

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

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

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

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

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

        /* ========================================
           顶部信息条
           ======================================== */
        .top-bar {
            background: var(--color-primary-dark);
            border-bottom: 1px solid var(--border-subtle);
            font-size: 0.8rem;
            color: var(--text-muted);
            padding: 0.4rem 0;
            display: block;
        }

        .top-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .top-bar__domain {
            letter-spacing: 0.03em;
            color: var(--text-muted);
        }

        .top-bar__actions {
            display: flex;
            gap: 1rem;
            align-items: center;
        }

        .top-bar__actions a {
            color: var(--text-secondary);
            font-size: 0.8rem;
            transition: color var(--transition-fast);
        }

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

        .top-bar__hot-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            color: var(--color-gold);
            font-weight: 600;
            font-size: 0.75rem;
        }

        .top-bar__hot-tag::before {
            content: '';
            display: inline-block;
            width: 6px;
            height: 6px;
            background: var(--color-accent);
            border-radius: 50%;
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.4;
                transform: scale(1.5);
            }
        }

        /* ========================================
           Header & 主导航
           ======================================== */
        .header {
            background: var(--bg-surface);
            border-bottom: 1px solid var(--border-subtle);
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            background: rgba(17, 17, 34, 0.85);
            transition: background var(--transition-base);
        }

        .header .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 0.85rem;
            padding-bottom: 0.85rem;
            gap: 2rem;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-accent), var(--color-gold));
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1.1rem;
            color: #fff;
            letter-spacing: 0;
            box-shadow: 0 4px 16px var(--color-accent-glow);
        }

        .logo-text {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-on-dark);
            letter-spacing: 0.04em;
            white-space: nowrap;
            font-family: var(--font-display);
        }

        .logo-text span {
            color: var(--color-accent);
        }

        .nav {
            display: flex;
            align-items: center;
        }

        .nav ul {
            display: flex;
            gap: 0.3rem;
            align-items: center;
        }

        .nav ul li a {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 1.1rem;
            border-radius: var(--radius-full);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .nav ul li a:hover {
            color: var(--text-on-dark);
            background: rgba(255, 255, 255, 0.05);
        }

        .nav ul li a.active {
            color: #fff;
            background: var(--color-accent);
            font-weight: 600;
            box-shadow: 0 4px 16px var(--color-accent-glow);
        }

        .nav ul li a.active:hover {
            background: var(--color-accent-hover);
            color: #fff;
        }

        /* 移动端导航切换按钮 */
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 0.5rem;
            cursor: pointer;
            z-index: 101;
            background: none;
            border: none;
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ========================================
           分类页 Banner
           ======================================== */
        .category-banner {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center 30%;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg,
                    rgba(10, 10, 20, 0.55) 0%,
                    rgba(10, 10, 20, 0.75) 40%,
                    rgba(10, 10, 20, 0.92) 100%);
            z-index: 1;
        }

        .category-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background:
                radial-gradient(ellipse at 30% 50%, rgba(233, 68, 96, 0.2) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 30%, rgba(240, 165, 0, 0.15) 0%, transparent 50%);
            z-index: 2;
            pointer-events: none;
        }

        .category-banner .container {
            position: relative;
            z-index: 3;
            padding-top: var(--space-3xl);
            padding-bottom: var(--space-3xl);
        }

        .category-banner__content {
            max-width: 700px;
        }

        .category-banner__label {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: var(--color-accent);
            color: #fff;
            padding: 0.35rem 1rem;
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: var(--space-lg);
            box-shadow: 0 4px 20px var(--color-accent-glow);
        }

        .category-banner__label::before {
            content: '';
            display: inline-block;
            width: 8px;
            height: 8px;
            background: #fff;
            border-radius: 50%;
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        .category-banner__title {
            font-size: clamp(2rem, 4vw, 3.2rem);
            font-weight: 900;
            color: #fff;
            line-height: 1.15;
            letter-spacing: 0.03em;
            margin-bottom: var(--space-md);
            font-family: var(--font-display);
            text-shadow: 0 2px 24px rgba(0, 0, 0, 0.5);
        }

        .category-banner__desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 550px;
            text-shadow: 0 1px 8px rgba(0, 0, 0, 0.4);
        }

        /* ========================================
           面包屑
           ======================================== */
        .breadcrumb-wrapper {
            background: var(--bg-surface);
            border-bottom: 1px solid var(--border-subtle);
            padding: 0.7rem 0;
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
            align-items: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

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

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

        .breadcrumb .sep {
            color: var(--text-muted);
            user-select: none;
        }

        .breadcrumb .current {
            color: var(--text-primary);
            font-weight: 500;
        }

        /* ========================================
           主内容区布局
           ======================================== */
        .main-content {
            flex: 1;
            padding-top: var(--space-2xl);
            padding-bottom: var(--space-4xl);
        }

        .content-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 2.5rem;
            align-items: start;
        }

        /* ========================================
           特色文章（置顶大卡片）
           ======================================== */
        .featured-section {
            margin-bottom: var(--space-2xl);
        }

        .section-label {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            margin-bottom: var(--space-lg);
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--color-accent);
            letter-spacing: 0.06em;
            text-transform: uppercase;
        }

        .section-label::after {
            content: '';
            flex: 1;
            height: 1px;
            background: var(--border-subtle);
        }

        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.25rem;
        }

        .featured-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-card);
            transition: all var(--transition-base);
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }

        .featured-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-active);
            background: var(--bg-card-hover);
        }

        .featured-card__image-wrap {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--bg-elevated);
        }

        .featured-card__image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-slow);
        }

        .featured-card:hover .featured-card__image-wrap img {
            transform: scale(1.06);
        }

        .featured-card__image-wrap::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 50%;
            background: linear-gradient(to top, rgba(22, 22, 45, 0.9), transparent);
            pointer-events: none;
        }

        .featured-card__tag {
            position: absolute;
            top: 0.75rem;
            left: 0.75rem;
            z-index: 2;
            background: var(--color-accent);
            color: #fff;
            padding: 0.25rem 0.7rem;
            border-radius: var(--radius-full);
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
        }

        .featured-card__body {
            padding: 1rem 1.15rem 1.15rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .featured-card__title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.45;
            margin-bottom: 0.5rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }

        .featured-card:hover .featured-card__title {
            color: var(--color-accent);
        }

        .featured-card__date {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: auto;
        }

        /* ========================================
           文章列表
           ======================================== */
        .article-list-section {
            margin-bottom: var(--space-2xl);
        }

        .article-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .article-card {
            display: flex;
            gap: 1.25rem;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-card);
            transition: all var(--transition-base);
            cursor: pointer;
            padding: 0;
        }

        .article-card:hover {
            transform: translateX(3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-active);
            background: var(--bg-card-hover);
        }

        .article-card__image {
            flex-shrink: 0;
            width: 200px;
            min-height: 140px;
            overflow: hidden;
            background: var(--bg-elevated);
            position: relative;
        }

        .article-card__image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-slow);
        }

        .article-card:hover .article-card__image img {
            transform: scale(1.05);
        }

        .article-card__tag {
            position: absolute;
            top: 0.6rem;
            left: 0.6rem;
            z-index: 2;
            background: rgba(0, 0, 0, 0.7);
            color: var(--color-gold-light);
            padding: 0.2rem 0.6rem;
            border-radius: var(--radius-full);
            font-size: 0.7rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
        }

        .article-card__body {
            flex: 1;
            padding: 1.1rem 1.25rem 1.1rem 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
            min-width: 0;
        }

        .article-card__title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.45;
            margin-bottom: 0.5rem;
            transition: color var(--transition-fast);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card:hover .article-card__title {
            color: var(--color-accent);
        }

        .article-card__excerpt {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0.6rem;
        }

        .article-card__meta {
            display: flex;
            gap: 1rem;
            align-items: center;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* ========================================
           侧边栏
           ======================================== */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 1.75rem;
            position: sticky;
            top: 90px;
        }

        .sidebar-widget {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-card);
            padding: 1.5rem;
        }

        .sidebar-widget__title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
            padding-bottom: 0.75rem;
            border-bottom: 1px solid var(--border-subtle);
            letter-spacing: 0.03em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .sidebar-widget__title::before {
            content: '';
            display: inline-block;
            width: 4px;
            height: 18px;
            background: var(--color-accent);
            border-radius: 2px;
        }

        /* 热门标签 */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .tag-cloud a {
            display: inline-block;
            padding: 0.35rem 0.8rem;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .tag-cloud a:hover {
            background: var(--color-accent);
            color: #fff;
            border-color: var(--color-accent);
            box-shadow: 0 4px 12px var(--color-accent-glow);
            transform: translateY(-1px);
        }

        /* 热门文章小列表 */
        .hot-list {
            display: flex;
            flex-direction: column;
            gap: 0.85rem;
        }

        .hot-list__item {
            display: flex;
            gap: 0.75rem;
            align-items: flex-start;
            cursor: pointer;
            transition: all var(--transition-fast);
            padding: 0.3rem;
            border-radius: var(--radius-sm);
        }

        .hot-list__item:hover {
            background: rgba(255, 255, 255, 0.03);
        }

        .hot-list__rank {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            font-weight: 800;
            border-radius: var(--radius-sm);
            color: #fff;
            background: var(--text-muted);
        }

        .hot-list__item:nth-child(1) .hot-list__rank {
            background: var(--color-accent);
            box-shadow: 0 2px 8px var(--color-accent-glow);
        }
        .hot-list__item:nth-child(2) .hot-list__rank {
            background: #e07b30;
            box-shadow: 0 2px 8px rgba(224, 123, 48, 0.3);
        }
        .hot-list__item:nth-child(3) .hot-list__rank {
            background: #c9a030;
            box-shadow: 0 2px 8px rgba(201, 160, 48, 0.3);
        }

        .hot-list__title {
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-primary);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }

        .hot-list__item:hover .hot-list__title {
            color: var(--color-accent);
        }

        /* 订阅CTA */
        .sidebar-cta {
            background: linear-gradient(135deg, var(--color-primary-light), var(--bg-elevated));
            border: 1px solid var(--border-gold);
            text-align: center;
        }

        .sidebar-cta__icon {
            font-size: 2.2rem;
            margin-bottom: 0.5rem;
            display: block;
        }

        .sidebar-cta__text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 1rem;
            line-height: 1.5;
        }

        .sidebar-cta .btn-subscribe {
            display: inline-block;
            width: 100%;
            padding: 0.65rem 1.2rem;
            background: var(--color-gold);
            color: #1a1a20;
            font-weight: 700;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            letter-spacing: 0.03em;
        }

        .sidebar-cta .btn-subscribe:hover {
            background: var(--color-gold-light);
            box-shadow: 0 6px 20px var(--color-gold-dim);
            transform: translateY(-2px);
            color: #1a1a20;
        }

        /* ========================================
           分页
           ======================================== */
        .pagination {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 0.4rem;
            margin-top: var(--space-xl);
            flex-wrap: wrap;
        }

        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 0.6rem;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            color: var(--text-secondary);
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
        }

        .pagination a:hover {
            background: var(--bg-elevated);
            color: var(--text-primary);
            border-color: var(--border-card);
            transform: translateY(-1px);
        }

        .pagination .current {
            background: var(--color-accent);
            color: #fff;
            font-weight: 700;
            border-color: var(--color-accent);
            box-shadow: 0 4px 14px var(--color-accent-glow);
        }

        .pagination .dots {
            background: transparent;
            border: none;
            color: var(--text-muted);
            cursor: default;
        }

        /* ========================================
           底部CTA板块
           ======================================== */
        .cta-section {
            background: var(--bg-surface);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
            padding: var(--space-3xl) 0;
            margin-top: var(--space-2xl);
        }

        .cta-section .container {
            text-align: center;
            max-width: 650px;
        }

        .cta-section__title {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-on-dark);
            margin-bottom: var(--space-md);
            font-family: var(--font-display);
            letter-spacing: 0.03em;
        }

        .cta-section__desc {
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.7;
            margin-bottom: var(--space-xl);
        }

        .cta-section__actions {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 2rem;
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-full);
            letter-spacing: 0.03em;
            transition: all var(--transition-base);
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 6px 22px var(--color-accent-glow);
        }

        .btn-primary:hover {
            background: var(--color-accent-hover);
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(233, 68, 96, 0.45);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border: 1.5px solid var(--border-card);
        }

        .btn-outline:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
        }

        /* ========================================
           Footer
           ======================================== */
        .footer {
            background: var(--color-primary-dark);
            border-top: 1px solid var(--border-subtle);
            padding-top: var(--space-3xl);
            padding-bottom: var(--space-xl);
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: var(--space-2xl);
        }

        .footer-brand h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-on-dark);
            margin-bottom: 0.5rem;
            letter-spacing: 0.04em;
        }

        .footer-brand p {
            color: var(--text-muted);
            line-height: 1.6;
        }

        .footer-links {
            display: contents;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 1rem;
            letter-spacing: 0.03em;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 0.55rem;
        }

        .footer-col ul li a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
            font-size: 0.88rem;
        }

        .footer-col ul li a:hover {
            color: var(--color-accent);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.75rem;
            padding-top: var(--space-lg);
            border-top: 1px solid var(--border-subtle);
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        /* ========================================
           响应式设计
           ======================================== */

        /* 平板 (768px - 1024px) */
        @media (max-width: 1024px) {
            .content-layout {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: repeat(3, 1fr);
                gap: 1rem;
                top: auto;
            }

            .sidebar-widget {
                padding: 1.2rem;
            }

            .sidebar-cta {
                grid-column: 1 / -1;
            }

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

            .featured-grid .featured-card:last-child {
                grid-column: 1 / -1;
                max-width: 500px;
                justify-self: center;
            }

            .article-card__image {
                width: 160px;
                min-height: 120px;
            }

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

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

        /* 手机横屏 / 小平板 (520px - 768px) */
        @media (max-width: 768px) {
            .header .container {
                padding-top: 0.65rem;
                padding-bottom: 0.65rem;
            }

            .nav-toggle {
                display: flex;
            }

            .nav {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: var(--bg-surface);
                border-left: 1px solid var(--border-subtle);
                flex-direction: column;
                padding: 5rem 1.5rem 2rem;
                transition: right var(--transition-base);
                z-index: 100;
                box-shadow: var(--shadow-lg);
            }

            .nav.open {
                right: 0;
            }

            .nav ul {
                flex-direction: column;
                gap: 0.5rem;
                width: 100%;
            }

            .nav ul li a {
                width: 100%;
                padding: 0.7rem 1.2rem;
                font-size: 1rem;
            }

            .category-banner {
                min-height: 240px;
            }

            .category-banner__title {
                font-size: 1.6rem;
            }

            .category-banner__desc {
                font-size: 0.95rem;
            }

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

            .featured-grid .featured-card:last-child {
                grid-column: auto;
                max-width: none;
                justify-self: auto;
            }

            .article-card {
                flex-direction: column;
            }

            .article-card__image {
                width: 100%;
                min-height: 180px;
                max-height: 220px;
            }

            .article-card__body {
                padding: 0 1.15rem 1.15rem;
            }

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

            .sidebar-cta {
                grid-column: 1 / -1;
            }

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

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .top-bar .container {
                flex-direction: column;
                text-align: center;
                gap: 0.3rem;
            }
        }

        /* 小手机 (400px - 520px) */
        @media (max-width: 520px) {
            :root {
                --container-padding: 1rem;
                --space-2xl: 2rem;
                --space-3xl: 2.5rem;
                --space-4xl: 3rem;
            }

            .logo-text {
                font-size: 1rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }

            .category-banner {
                min-height: 200px;
            }

            .category-banner__title {
                font-size: 1.35rem;
            }

            .category-banner__desc {
                font-size: 0.85rem;
            }

            .category-banner__label {
                font-size: 0.75rem;
                padding: 0.25rem 0.75rem;
            }

            .article-card__image {
                min-height: 150px;
                max-height: 180px;
            }

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

            .article-card__excerpt {
                font-size: 0.8rem;
            }

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

            .cta-section__title {
                font-size: 1.4rem;
            }

            .btn {
                padding: 0.6rem 1.4rem;
                font-size: 0.9rem;
            }

            .pagination a,
            .pagination span {
                min-width: 34px;
                height: 34px;
                font-size: 0.8rem;
            }

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

            .footer-brand h3 {
                font-size: 1.1rem;
            }

            .nav {
                width: 260px;
            }
        }

        /* 超小屏幕 */
        @media (max-width: 400px) {
            .category-banner {
                min-height: 180px;
            }
            .category-banner__title {
                font-size: 1.2rem;
            }
            .article-card__image {
                min-height: 130px;
            }
            .featured-card__title {
                font-size: 0.9rem;
            }
        }

        /* ========================================
           辅助工具类
           ======================================== */
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border-width: 0;
        }

        /* 焦点可见轮廓 */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 3px;
        }

        /* 选中文字 */
        ::selection {
            background: var(--color-accent);
            color: #fff;
        }
        ::-moz-selection {
            background: var(--color-accent);
            color: #fff;
        }