/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #0d1b2a;
            --color-primary-light: #1b2d45;
            --color-accent: #d4a843;
            --color-accent-hover: #c09a3a;
            --color-accent-light: #f5e6c0;
            --color-emphasis: #e63946;
            --color-emphasis-hover: #c92d3a;
            --color-bg: #f5f3ef;
            --color-bg-alt: #ebe8e2;
            --color-bg-dark: #0a1523;
            --color-text: #1a1a2e;
            --color-text-light: #6b7280;
            --color-text-lighter: #9ca3af;
            --color-border: #e0ddd6;
            --color-white: #ffffff;
            --color-black: #111111;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.10);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.14);
            --shadow-glow: 0 0 30px rgba(212,168,67,0.25);
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 3.5rem;
            --spacing-xl: 5rem;
            --max-width: 1240px;
            --header-brand-h: 64px;
            --header-nav-h: 48px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* ===== Reset / Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: color var(--transition); }
        button { font: inherit; cursor: pointer; border: none; background: none; }
        input, textarea { font: inherit; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--color-primary); }
        h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
        h2 { font-size: clamp(1.5rem, 3.5vw, 2.4rem); }
        h3 { font-size: clamp(1.15rem, 2.2vw, 1.5rem); }
        h4 { font-size: 1.1rem; }
        p { margin-bottom: 0.8rem; color: var(--color-text-light); }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.7rem 1.8rem;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            white-space: nowrap;
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--color-accent);
            color: var(--color-primary);
            border-color: var(--color-accent);
        }
        .btn-primary:hover {
            background: var(--color-accent-hover);
            border-color: var(--color-accent-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow);
        }
        .btn-primary:active { transform: translateY(0); }
        .btn-primary:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 2px; }
        .btn-outline {
            background: transparent;
            color: var(--color-white);
            border-color: var(--color-white);
        }
        .btn-outline:hover {
            background: var(--color-white);
            color: var(--color-primary);
            transform: translateY(-2px);
        }
        .btn-emphasis {
            background: var(--color-emphasis);
            color: var(--color-white);
            border-color: var(--color-emphasis);
        }
        .btn-emphasis:hover {
            background: var(--color-emphasis-hover);
            border-color: var(--color-emphasis-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230,57,70,0.35);
        }
        .btn-lg { padding: 0.9rem 2.6rem; font-size: 1.05rem; border-radius: var(--radius-lg); }

        /* ===== Tags / Badges ===== */
        .tag {
            display: inline-block;
            padding: 0.2rem 0.8rem;
            border-radius: var(--radius-sm);
            font-size: 0.78rem;
            font-weight: 600;
            background: var(--color-accent-light);
            color: var(--color-primary);
            letter-spacing: 0.3px;
        }
        .tag-hot {
            background: #fee2e2;
            color: var(--color-emphasis);
        }
        .tag-new {
            background: #d1fae5;
            color: #065f46;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            padding: 0.15rem 0.6rem;
            border-radius: 20px;
            font-size: 0.72rem;
            font-weight: 600;
            background: var(--color-accent-light);
            color: var(--color-primary);
        }
        .badge-hot {
            background: #fef3c7;
            color: #b45309;
        }
        .badge i { font-size: 0.65rem; }

        /* ===== Header – 杂志频道导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: var(--color-primary);
            color: var(--color-white);
            box-shadow: 0 2px 20px rgba(0,0,0,0.3);
        }
        .header-brand {
            height: var(--header-brand-h);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 var(--spacing-sm);
            max-width: var(--max-width);
            margin: 0 auto;
        }
        .site-logo {
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: 1px;
            color: var(--color-accent);
            white-space: nowrap;
        }
        .site-logo span { color: var(--color-white); }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }
        .header-search {
            display: flex;
            align-items: center;
            background: rgba(255,255,255,0.12);
            border-radius: var(--radius-md);
            padding: 0.35rem 0.8rem;
            transition: background var(--transition);
        }
        .header-search:focus-within {
            background: rgba(255,255,255,0.20);
        }
        .header-search input {
            background: none;
            border: none;
            color: var(--color-white);
            padding: 0.3rem 0.5rem;
            width: 140px;
            font-size: 0.85rem;
            outline: none;
        }
        .header-search input::placeholder { color: var(--color-text-lighter); }
        .header-search button {
            color: var(--color-text-lighter);
            font-size: 0.9rem;
            padding: 0.2rem;
            transition: color var(--transition);
        }
        .header-search button:hover { color: var(--color-accent); }
        .menu-toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--color-white);
            padding: 0.3rem 0.5rem;
        }
        .header-nav {
            height: var(--header-nav-h);
            background: rgba(255,255,255,0.04);
            border-top: 1px solid rgba(255,255,255,0.06);
        }
        .header-nav .container {
            height: 100%;
            display: flex;
            align-items: center;
            gap: 0.2rem;
            overflow-x: auto;
            scrollbar-width: none;
        }
        .header-nav .container::-webkit-scrollbar { display: none; }
        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 0.4rem 1.2rem;
            border-radius: var(--radius-md);
            font-size: 0.88rem;
            font-weight: 500;
            color: rgba(255,255,255,0.75);
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }
        .nav-link:hover {
            color: var(--color-white);
            background: rgba(255,255,255,0.08);
        }
        .nav-link.active {
            color: var(--color-accent);
            background: rgba(212,168,67,0.12);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
        }
        .nav-link i { margin-right: 0.4rem; font-size: 0.8rem; }

        /* ===== Hero ===== */
        .hero {
            margin-top: calc(var(--header-brand-h) + var(--header-nav-h));
            min-height: 70vh;
            display: flex;
            align-items: center;
            position: relative;
            background: var(--color-bg-dark) url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            isolation: isolate;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13,27,42,0.88) 40%, rgba(13,27,42,0.55) 80%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            padding: var(--spacing-xl) var(--spacing-sm);
            text-align: center;
        }
        .hero-tag {
            display: inline-block;
            padding: 0.3rem 1.2rem;
            border-radius: 30px;
            background: rgba(212,168,67,0.18);
            color: var(--color-accent);
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 1.2rem;
            backdrop-filter: blur(6px);
            border: 1px solid rgba(212,168,67,0.2);
        }
        .hero h1 {
            color: var(--color-white);
            font-weight: 900;
            letter-spacing: -0.5px;
            max-width: 900px;
            margin: 0 auto 1rem;
        }
        .hero h1 .highlight { color: var(--color-accent); }
        .hero p {
            color: rgba(255,255,255,0.8);
            font-size: clamp(1rem, 2vw, 1.2rem);
            max-width: 680px;
            margin: 0 auto 2rem;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1rem;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 2.5rem;
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.10);
        }
        .hero-stat { text-align: center; }
        .hero-stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1.2;
        }
        .hero-stat-label {
            font-size: 0.8rem;
            color: rgba(255,255,255,0.6);
            letter-spacing: 0.5px;
        }

        /* ===== Sections ===== */
        .section {
            padding: var(--spacing-xl) 0;
        }
        .section-alt { background: var(--color-bg-alt); }
        .section-dark {
            background: var(--color-bg-dark);
            color: var(--color-white);
        }
        .section-dark h2, .section-dark h3 { color: var(--color-white); }
        .section-dark p { color: rgba(255,255,255,0.7); }
        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto var(--spacing-lg);
        }
        .section-header h2 { margin-bottom: 0.8rem; }
        .section-header p { font-size: 1.05rem; }
        .section-header .tag { margin-bottom: 0.8rem; }

        /* ===== Feature Cards ===== */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--spacing-md);
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-md);
        }
        .feature-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            text-align: center;
            border: 1px solid var(--color-border);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--color-accent);
        }
        .feature-icon {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-md);
            background: var(--color-accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            font-size: 1.6rem;
            color: var(--color-accent);
        }
        .feature-card h3 { margin-bottom: 0.5rem; font-size: 1.1rem; }
        .feature-card p { font-size: 0.92rem; margin-bottom: 0; }

        /* ===== Category Hero / Entry ===== */
        .category-entry {
            background: var(--color-bg-dark) url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg) var(--spacing-md);
            color: var(--color-white);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-md);
            position: relative;
            isolation: isolate;
            overflow: hidden;
        }
        .category-entry::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13,27,42,0.85) 50%, rgba(13,27,42,0.50) 100%);
            z-index: 1;
            border-radius: var(--radius-lg);
        }
        .category-entry > * { position: relative; z-index: 2; }
        .category-entry h3 { font-size: 1.6rem; color: var(--color-white); margin-bottom: 0.4rem; }
        .category-entry p { color: rgba(255,255,255,0.75); margin-bottom: 0; }
        .category-entry .btn { flex-shrink: 0; }

        /* ===== Content Cards (Cover) ===== */
        .content-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--color-border);
            display: flex;
            flex-direction: column;
        }
        .content-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: var(--color-accent);
        }
        .content-card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
            background: var(--color-bg-alt);
        }
        .content-card-body {
            padding: var(--spacing-sm);
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .content-card-body .tag { align-self: flex-start; margin-bottom: 0.5rem; }
        .content-card-body h4 {
            font-size: 1rem;
            margin-bottom: 0.4rem;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .content-card-body p {
            font-size: 0.85rem;
            color: var(--color-text-light);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0.6rem;
            flex: 1;
        }
        .content-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.78rem;
            color: var(--color-text-lighter);
            padding-top: 0.5rem;
            border-top: 1px solid var(--color-border);
        }
        .content-card-meta i { margin-right: 0.3rem; }

        /* ===== CMS List ===== */
        .cms-list .content-card { flex-direction: row; align-items: stretch; }
        .cms-list .content-card-img { width: 200px; aspect-ratio: auto; min-height: 140px; flex-shrink: 0; }
        .cms-list .content-card-body { padding: var(--spacing-sm); }
        .cms-list .content-card-body h4 { -webkit-line-clamp: 1; }
        .cms-list .content-card-body p { -webkit-line-clamp: 2; }
        .cms-empty {
            text-align: center;
            padding: var(--spacing-lg);
            color: var(--color-text-lighter);
            font-size: 1rem;
            background: var(--color-white);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--color-border);
        }

        /* ===== Numbered / Sequence ===== */
        .step-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: var(--spacing-md);
            counter-reset: step;
        }
        .step-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border);
            transition: all var(--transition);
            position: relative;
        }
        .step-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-accent);
            color: var(--color-primary);
            font-weight: 800;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 0.8rem;
        }
        .step-card h4 { margin-bottom: 0.3rem; }
        .step-card p { font-size: 0.85rem; margin-bottom: 0; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 780px; margin: 0 auto; }
        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-md);
            margin-bottom: 0.8rem;
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item:hover { border-color: var(--color-accent); }
        .faq-question {
            padding: var(--spacing-sm) var(--spacing-md);
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: var(--spacing-sm);
            background: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }
        .faq-question:hover { background: rgba(212,168,67,0.04); }
        .faq-question i { color: var(--color-accent); transition: transform var(--transition); font-size: 0.85rem; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 var(--spacing-md) var(--spacing-sm);
            font-size: 0.92rem;
            color: var(--color-text-light);
            display: none;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer { display: block; }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--color-bg-dark) url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            padding: var(--spacing-xl) 0;
            text-align: center;
            position: relative;
            isolation: isolate;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13,27,42,0.88) 40%, rgba(13,27,42,0.65) 100%);
            z-index: 1;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { color: var(--color-white); margin-bottom: 0.8rem; }
        .cta-section p { color: rgba(255,255,255,0.75); max-width: 560px; margin: 0 auto 2rem; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-primary);
            color: rgba(255,255,255,0.7);
            padding: var(--spacing-lg) 0 var(--spacing-md);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-md);
        }
        .footer-brand .site-logo { font-size: 1.2rem; margin-bottom: 0.6rem; display: block; }
        .footer-brand p { font-size: 0.85rem; color: rgba(255,255,255,0.55); max-width: 300px; }
        .footer-col h5 {
            color: var(--color-white);
            font-size: 0.9rem;
            margin-bottom: 0.8rem;
            font-weight: 600;
        }
        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.55);
            padding: 0.25rem 0;
            transition: color var(--transition);
        }
        .footer-col a:hover { color: var(--color-accent); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: var(--spacing-sm);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: var(--spacing-sm);
            font-size: 0.8rem;
            color: rgba(255,255,255,0.4);
        }
        .footer-social { display: flex; gap: 0.6rem; }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.6);
            transition: all var(--transition);
            font-size: 0.9rem;
        }
        .footer-social a:hover { background: var(--color-accent); color: var(--color-primary); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .grid-4 { grid-template-columns: repeat(2, 1fr); }
            .step-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .cms-list .content-card { flex-direction: column; }
            .cms-list .content-card-img { width: 100%; aspect-ratio: 16 / 9; min-height: auto; }
        }

        @media (max-width: 768px) {
            :root { --header-brand-h: 56px; --header-nav-h: auto; }
            .menu-toggle { display: block; }
            .header-search input { width: 100px; }
            .header-nav {
                height: auto;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.4s ease;
                background: var(--color-primary-light);
            }
            .header-nav.open { max-height: 240px; }
            .header-nav .container {
                flex-direction: column;
                align-items: stretch;
                padding: 0.5rem var(--spacing-sm);
                gap: 0.2rem;
            }
            .nav-link { padding: 0.6rem 1rem; }
            .nav-link.active::after { display: none; }

            .hero { min-height: 60vh; }
            .hero h1 { font-size: 1.8rem; }
            .hero-stats { gap: 1.5rem; }
            .grid-3 { grid-template-columns: 1fr; }
            .grid-2 { grid-template-columns: 1fr; }
            .step-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; }
            .category-entry { flex-direction: column; text-align: center; }
            .section { padding: var(--spacing-lg) 0; }
            .hero-stat-number { font-size: 1.4rem; }
        }

        @media (max-width: 520px) {
            .header-search { display: none; }
            .hero-actions .btn { width: 100%; justify-content: center; }
            .hero-stats { flex-direction: column; gap: 1rem; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar { width: 6px; height: 6px; }
        ::-webkit-scrollbar-track { background: var(--color-bg); }
        ::-webkit-scrollbar-thumb { background: var(--color-text-lighter); border-radius: 3px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--color-text-light); }

        /* ===== Accessibility ===== */
        :focus-visible { outline: 3px solid var(--color-accent); outline-offset: 2px; }
        .skip-link {
            position: absolute;
            top: -100%;
            left: 1rem;
            background: var(--color-accent);
            color: var(--color-primary);
            padding: 0.5rem 1rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            z-index: 10000;
            transition: top 0.3s;
        }
        .skip-link:focus { top: 0.5rem; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --bg-body: #f8f9fa;
            --bg-dark: #0d1b2a;
            --bg-card: #ffffff;
            --bg-section-alt: #f0f2f5;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #6c757d;
            --text-white: #ffffff;
            --border-color: #e0e0e0;
            --border-light: #f0f0f0;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.10);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.14);
            --shadow-hover: 0 12px 36px rgba(230,57,70,0.18);
            --transition: all 0.30s cubic-bezier(0.25,0.46,0.45,0.94);
            --font-family: 'Segoe UI', 'PingFang SC', Roboto, 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
            --nav-height: 56px;
            --spacer-section: 5rem;
            --spacer-block: 3rem;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover { color: var(--primary-dark); }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--text-primary);
        }
        h1 { font-size: 2.6rem; letter-spacing: -0.02em; }
        h2 { font-size: 2.0rem; letter-spacing: -0.01em; }
        h3 { font-size: 1.4rem; }
        h4 { font-size: 1.15rem; }
        p { margin-bottom: 0.8rem; color: var(--text-secondary); }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.7rem 1.8rem;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            background: var(--primary);
            color: var(--text-white);
            box-shadow: 0 4px 12px rgba(230,57,70,0.30);
        }
        .btn:hover {
            background: var(--primary-dark);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230,57,70,0.40);
        }
        .btn:active { transform: translateY(0); }
        .btn:focus-visible { outline: 3px solid var(--primary-light); outline-offset: 2px; }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
            box-shadow: none;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: var(--text-white);
            box-shadow: 0 6px 18px rgba(230,57,70,0.25);
        }
        .btn-sm { padding: 0.45rem 1.2rem; font-size: 0.85rem; border-radius: var(--radius-sm); }
        .btn-lg { padding: 1.0rem 2.6rem; font-size: 1.1rem; border-radius: var(--radius-lg); }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-block;
            padding: 0.2rem 0.8rem;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 600;
            background: var(--primary);
            color: var(--text-white);
        }
        .badge-outline {
            background: transparent;
            border: 1.5px solid var(--primary);
            color: var(--primary);
        }
        .tag {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            border-radius: var(--radius-sm);
            font-size: 0.75rem;
            font-weight: 500;
            background: var(--bg-section-alt);
            color: var(--text-secondary);
            transition: var(--transition);
            margin: 0.2rem;
        }
        .tag:hover { background: var(--primary); color: var(--text-white); }

        /* ===== Header & Nav (杂志频道导航) ===== */
        .site-header {
            background: var(--bg-dark);
            color: var(--text-white);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0,0,0,0.25);
        }
        .header-brand-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.6rem 1.5rem;
            max-width: var(--container-max);
            margin: 0 auto;
            width: 100%;
        }
        .site-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-white);
            text-decoration: none;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .site-logo span { color: var(--primary); font-weight: 300; }
        .site-logo:hover { color: var(--text-white); opacity: 0.92; }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        .header-actions .search-box {
            display: flex;
            align-items: center;
            background: rgba(255,255,255,0.10);
            border-radius: 50px;
            padding: 0.3rem 0.3rem 0.3rem 1rem;
            border: 1px solid rgba(255,255,255,0.08);
            transition: var(--transition);
        }
        .header-actions .search-box:focus-within {
            background: rgba(255,255,255,0.18);
            border-color: var(--primary);
        }
        .header-actions .search-box input {
            background: transparent;
            border: none;
            color: var(--text-white);
            padding: 0.3rem 0;
            font-size: 0.88rem;
            width: 140px;
            outline: none;
        }
        .header-actions .search-box input::placeholder { color: rgba(255,255,255,0.5); }
        .header-actions .search-box button {
            background: var(--primary);
            border: none;
            color: #fff;
            width: 34px;
            height: 34px;
            border-radius: 50%;
            cursor: pointer;
            transition: var(--transition);
            font-size: 0.85rem;
        }
        .header-actions .search-box button:hover { background: var(--primary-dark); }
        .mobile-toggle {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-white);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.25rem;
        }
        .header-nav {
            background: rgba(255,255,255,0.04);
            border-top: 1px solid rgba(255,255,255,0.06);
            padding: 0.4rem 0;
        }
        .header-nav .container {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.2rem;
        }
        .header-nav .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.5rem 1.2rem;
            border-radius: 50px;
            font-size: 0.90rem;
            font-weight: 500;
            color: rgba(255,255,255,0.75);
            text-decoration: none;
            transition: var(--transition);
            white-space: nowrap;
        }
        .header-nav .nav-link i { font-size: 0.85rem; }
        .header-nav .nav-link:hover {
            color: var(--text-white);
            background: rgba(255,255,255,0.10);
        }
        .header-nav .nav-link.active,
        .header-nav .nav-link[aria-current="page"] {
            color: var(--text-white);
            background: var(--primary);
            box-shadow: 0 4px 14px rgba(230,57,70,0.35);
        }
        .header-nav .nav-link.active:hover { background: var(--primary-dark); }

        /* ===== Hero / Banner (分类页) ===== */
        .category-banner {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #16213e 100%);
            overflow: hidden;
            padding: 3rem 1.5rem;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.25;
            mix-blend-mode: overlay;
        }
        .category-banner .banner-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }
        .category-banner h1 {
            color: var(--text-white);
            font-size: 2.8rem;
            margin-bottom: 0.6rem;
            text-shadow: 0 2px 20px rgba(0,0,0,0.4);
        }
        .category-banner p {
            color: rgba(255,255,255,0.80);
            font-size: 1.15rem;
            max-width: 640px;
            margin: 0 auto 1.5rem;
        }
        .category-banner .banner-meta {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1.5rem;
            color: rgba(255,255,255,0.65);
            font-size: 0.92rem;
        }
        .category-banner .banner-meta i { margin-right: 0.4rem; color: var(--primary); }

        /* ===== 板块通用 ===== */
        .section {
            padding: var(--spacer-section) 0;
        }
        .section-alt {
            background: var(--bg-section-alt);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-dark h2,
        .section-dark h3,
        .section-dark .section-subtitle { color: var(--text-white); }
        .section-dark .section-subtitle { color: rgba(255,255,255,0.70); }
        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-header h2 {
            position: relative;
            display: inline-block;
            margin-bottom: 0.6rem;
        }
        .section-header h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin: 0.8rem auto 0;
        }
        .section-subtitle {
            color: var(--text-light);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto;
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            gap: 1.8rem;
        }
        .card-grid-3 { grid-template-columns: repeat(3, 1fr); }
        .card-grid-2 { grid-template-columns: repeat(2, 1fr); }
        .card-grid-4 { grid-template-columns: repeat(4, 1fr); }

        /* ===== 资讯卡片 ===== */
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            border: 1px solid var(--border-light);
        }
        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .news-card .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
            background: var(--bg-section-alt);
        }
        .news-card .card-body {
            padding: 1.3rem 1.5rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
            margin-bottom: 0.6rem;
        }
        .news-card .card-tags .tag { font-size: 0.70rem; }
        .news-card .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }
        .news-card .card-title a {
            color: var(--text-primary);
            text-decoration: none;
        }
        .news-card .card-title a:hover { color: var(--primary); }
        .news-card .card-text {
            font-size: 0.90rem;
            color: var(--text-light);
            flex: 1;
            margin-bottom: 0.8rem;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.82rem;
            color: var(--text-light);
            border-top: 1px solid var(--border-light);
            padding-top: 0.8rem;
            margin-top: auto;
        }
        .news-card .card-footer i { margin-right: 0.3rem; }

        /* ===== 特色卡片（带热力标签） ===== */
        .hot-card {
            position: relative;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .hot-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .hot-card .hot-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--primary);
            color: #fff;
            font-size: 0.70rem;
            font-weight: 700;
            padding: 0.2rem 0.7rem;
            border-radius: 50px;
            z-index: 2;
            box-shadow: 0 2px 10px rgba(230,57,70,0.35);
        }
        .hot-card .hot-img {
            width: 100%;
            aspect-ratio: 3 / 2;
            object-fit: cover;
            background: var(--bg-section-alt);
        }
        .hot-card .hot-body {
            padding: 1.2rem 1.3rem 1.4rem;
        }
        .hot-card .hot-body h4 {
            font-size: 1.05rem;
            margin-bottom: 0.3rem;
        }
        .hot-card .hot-body h4 a { color: var(--text-primary); }
        .hot-card .hot-body h4 a:hover { color: var(--primary); }
        .hot-card .hot-body p {
            font-size: 0.88rem;
            color: var(--text-light);
            margin-bottom: 0.5rem;
        }
        .hot-card .hot-meta {
            font-size: 0.80rem;
            color: var(--text-light);
            display: flex;
            gap: 1rem;
        }
        .hot-card .hot-meta i { margin-right: 0.3rem; color: var(--primary); }

        /* ===== 列表区块 ===== */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .article-list-item {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            padding: 0.9rem 1.2rem;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            border-left: 3px solid transparent;
            box-shadow: var(--shadow-sm);
        }
        .article-list-item:hover {
            border-left-color: var(--primary);
            background: #fff;
            box-shadow: var(--shadow-md);
        }
        .article-list-item .list-num {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--primary);
            min-width: 36px;
            opacity: 0.7;
        }
        .article-list-item .list-content { flex: 1; }
        .article-list-item .list-content h5 {
            font-size: 1.0rem;
            margin-bottom: 0.2rem;
        }
        .article-list-item .list-content h5 a { color: var(--text-primary); }
        .article-list-item .list-content h5 a:hover { color: var(--primary); }
        .article-list-item .list-content .list-meta {
            font-size: 0.80rem;
            color: var(--text-light);
        }
        .article-list-item .list-content .list-meta i { margin-right: 0.3rem; }

        /* ===== 数据/统计区块 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            text-align: center;
        }
        .stat-item .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
        }
        .stat-item .stat-label {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-top: 0.3rem;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item summary {
            padding: 1.0rem 1.4rem;
            font-weight: 600;
            font-size: 0.98rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 0.6rem;
            color: var(--text-primary);
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary::before {
            content: '\f059';
            font-family: 'Font Awesome 6 Free';
            font-weight: 400;
            color: var(--primary);
            font-size: 1.1rem;
        }
        .faq-item[open] summary { background: var(--bg-section-alt); }
        .faq-item .faq-answer {
            padding: 0 1.4rem 1.2rem;
            color: var(--text-secondary);
            font-size: 0.93rem;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-dark) 0%, #1a1a3e 100%);
            padding: 4rem 1.5rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.10;
            mix-blend-mode: overlay;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 {
            color: var(--text-white);
            font-size: 2.2rem;
            margin-bottom: 0.8rem;
        }
        .cta-section p {
            color: rgba(255,255,255,0.75);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 2rem;
        }
        .cta-section .btn-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.80);
            padding: 3.5rem 0 0;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 2.5rem;
            margin-bottom: 2rem;
        }
        .site-footer .site-logo { font-size: 1.35rem; margin-bottom: 0.6rem; display: inline-block; }
        .site-footer .footer-brand p { font-size: 0.90rem; color: rgba(255,255,255,0.55); margin-top: 0.5rem; }
        .site-footer .footer-col h5 {
            color: var(--text-white);
            font-size: 1.0rem;
            margin-bottom: 1rem;
            font-weight: 600;
        }
        .site-footer .footer-col a {
            display: block;
            color: rgba(255,255,255,0.60);
            font-size: 0.90rem;
            padding: 0.25rem 0;
            transition: var(--transition);
        }
        .site-footer .footer-col a:hover { color: var(--primary); padding-left: 4px; }
        .site-footer .footer-social a {
            display: inline-block;
            font-size: 1.3rem;
            margin-right: 0.8rem;
            color: rgba(255,255,255,0.50);
        }
        .site-footer .footer-social a:hover { color: var(--primary); }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 1.5rem 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.40);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .card-grid-3 { grid-template-columns: repeat(2, 1fr); }
            .card-grid-4 { grid-template-columns: repeat(2, 1fr); }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
            .site-footer .footer-grid { grid-template-columns: 1fr 1fr; }
            .category-banner h1 { font-size: 2.2rem; }
            .cta-section h2 { font-size: 1.8rem; }
        }
        @media (max-width: 768px) {
            :root { --spacer-section: 3rem; }
            .header-brand-bar { padding: 0.5rem 1rem; }
            .header-actions .search-box { display: none; }
            .mobile-toggle { display: block; }
            .header-nav .container {
                flex-wrap: nowrap;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
                padding: 0.2rem 0.5rem;
                gap: 0.1rem;
            }
            .header-nav .container::-webkit-scrollbar { display: none; }
            .header-nav .nav-link {
                padding: 0.4rem 1rem;
                font-size: 0.82rem;
                flex-shrink: 0;
            }
            .category-banner { min-height: 240px; padding: 2rem 1rem; }
            .category-banner h1 { font-size: 1.8rem; }
            .category-banner p { font-size: 1rem; }
            .card-grid-2, .card-grid-3, .card-grid-4 { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 1rem; }
            .stat-item .stat-number { font-size: 2rem; }
            .site-footer .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
            .site-footer .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
            .section-header h2 { font-size: 1.6rem; }
            .cta-section h2 { font-size: 1.5rem; }
            .article-list-item { flex-direction: column; gap: 0.3rem; }
            .article-list-item .list-num { min-width: auto; font-size: 1.1rem; }
        }
        @media (max-width: 520px) {
            .category-banner h1 { font-size: 1.4rem; }
            .category-banner .banner-meta { gap: 0.8rem; font-size: 0.80rem; flex-direction: column; align-items: center; }
            .btn-lg { padding: 0.7rem 1.6rem; font-size: 0.95rem; }
            .section { padding: 2rem 0; }
            .container { padding: 0 1rem; }
            .header-nav .nav-link { font-size: 0.75rem; padding: 0.3rem 0.8rem; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 0.8rem; }
            .stat-item .stat-number { font-size: 1.6rem; }
        }

        /* ===== 辅助 ===== */
        .text-center { text-align: center; }
        .mt-2 { margin-top: 2rem; }
        .mb-2 { margin-bottom: 2rem; }
        .gap-1 { gap: 1rem; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --clr-primary: #e8491d;
            --clr-primary-dark: #c9371a;
            --clr-primary-light: #ff6a3d;
            --clr-secondary: #2b7be4;
            --clr-secondary-dark: #1a5cb3;
            --clr-accent: #f5a623;
            --clr-dark: #0f1724;
            --clr-dark-light: #1a2332;
            --clr-gray-900: #1e293b;
            --clr-gray-700: #334155;
            --clr-gray-500: #64748b;
            --clr-gray-300: #cbd5e1;
            --clr-gray-200: #e2e8f0;
            --clr-gray-100: #f1f5f9;
            --clr-white: #ffffff;
            --clr-bg: #f7f8fa;
            --clr-bg-card: #ffffff;
            --clr-border: #e8ecf1;
            --clr-text: #1e293b;
            --clr-text-light: #64748b;
            --clr-text-white: #f8fafc;
            --clr-success: #10b981;
            --clr-warning: #f59e0b;
            --clr-danger: #ef4444;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --shadow-xl: 0 24px 60px rgba(0,0,0,0.16);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1280px;
            --container-padding: 1.5rem;
            --section-gap: 5rem;
            --section-gap-mobile: 3rem;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--clr-text);
            background: var(--clr-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        a { color: var(--clr-secondary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--clr-primary); }
        a:focus-visible { outline: 3px solid var(--clr-primary); outline-offset: 2px; border-radius: 4px; }
        button { cursor: pointer; font-family: inherit; border: none; background: none; transition: var(--transition); }
        button:focus-visible { outline: 3px solid var(--clr-primary); outline-offset: 2px; border-radius: 6px; }
        input, textarea { font-family: inherit; font-size: 1rem; transition: var(--transition); }
        input:focus, textarea:focus { outline: none; border-color: var(--clr-secondary); box-shadow: 0 0 0 3px rgba(43,123,228,0.15); }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--clr-dark); }
        h1 { font-size: clamp(1.8rem, 4vw, 3rem); }
        h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
        h3 { font-size: clamp(1.2rem, 2vw, 1.65rem); }
        h4 { font-size: 1.2rem; }
        p { margin-bottom: 1rem; color: var(--clr-text); }
        ul, ol { padding-left: 1.5rem; margin-bottom: 1rem; }
        li { margin-bottom: 0.35rem; }
        ::selection { background: var(--clr-primary); color: var(--clr-white); }
        ::-webkit-scrollbar { width: 8px; }
        ::-webkit-scrollbar-track { background: var(--clr-gray-100); }
        ::-webkit-scrollbar-thumb { background: var(--clr-gray-300); border-radius: 4px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--clr-gray-500); }

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

        /* ===== Header & Nav ===== */
        .site-header {
            background: var(--clr-dark);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 20px rgba(0,0,0,0.3);
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.7rem 0;
            gap: 1rem;
        }
        .site-logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--clr-white);
            display: flex;
            align-items: center;
            gap: 0.3rem;
            letter-spacing: -0.3px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .site-logo i { color: var(--clr-primary); font-size: 1.5rem; }
        .site-logo span { color: var(--clr-primary); font-weight: 300; }
        .site-logo:hover { color: var(--clr-white); opacity: 0.92; }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex-wrap: wrap;
        }
        .header-nav .nav-link {
            color: rgba(255,255,255,0.7);
            font-size: 0.92rem;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            gap: 0.4rem;
            transition: var(--transition);
            white-space: nowrap;
            border: 1px solid transparent;
        }
        .header-nav .nav-link i { font-size: 0.85rem; }
        .header-nav .nav-link:hover {
            color: var(--clr-white);
            background: rgba(255,255,255,0.08);
        }
        .header-nav .nav-link.active {
            color: var(--clr-white);
            background: var(--clr-primary);
            border-color: var(--clr-primary);
            box-shadow: 0 4px 12px rgba(232,73,29,0.35);
        }
        .header-nav .nav-link.active:hover {
            background: var(--clr-primary-dark);
            border-color: var(--clr-primary-dark);
        }

        /* Mobile menu toggle */
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--clr-white);
            font-size: 1.5rem;
            padding: 0.4rem;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
        }
        .menu-toggle:hover { background: rgba(255,255,255,0.08); }

        /* ===== Reading Progress ===== */
        .reading-progress {
            position: fixed;
            top: 0;
            left: 0;
            width: 0%;
            height: 3px;
            background: linear-gradient(90deg, var(--clr-primary), var(--clr-accent));
            z-index: 200;
            transition: width 0.1s linear;
            box-shadow: 0 0 12px rgba(232,73,29,0.5);
        }

        /* ===== Article Hero ===== */
        .article-hero {
            position: relative;
            padding: 4rem 0 3rem;
            background: var(--clr-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,23,36,0.92) 0%, rgba(15,23,36,0.7) 100%);
            z-index: 1;
        }
        .article-hero .container { position: relative; z-index: 2; }
        .article-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: var(--clr-primary);
            color: var(--clr-white);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 0.3rem 0.9rem;
            border-radius: 50px;
            letter-spacing: 0.3px;
            margin-bottom: 1rem;
            box-shadow: 0 4px 12px rgba(232,73,29,0.4);
        }
        .article-hero h1 {
            color: var(--clr-white);
            font-size: clamp(1.6rem, 3.5vw, 2.8rem);
            line-height: 1.2;
            max-width: 840px;
            text-shadow: 0 2px 20px rgba(0,0,0,0.3);
            margin-bottom: 0.75rem;
        }
        .article-hero-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem 2rem;
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
            margin-top: 0.5rem;
        }
        .article-hero-meta i { margin-right: 0.35rem; color: var(--clr-primary); }
        .article-hero-meta span { display: flex; align-items: center; }
        .article-hero-excerpt {
            color: rgba(255,255,255,0.85);
            font-size: 1.05rem;
            line-height: 1.6;
            max-width: 720px;
            margin-top: 1rem;
            padding-top: 1rem;
            border-top: 1px solid rgba(255,255,255,0.1);
        }

        /* ===== Article Content ===== */
        .article-content-section {
            padding: 4rem 0 2rem;
            background: var(--clr-white);
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
        }
        .article-main { min-width: 0; }
        .article-body {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--clr-text);
        }
        .article-body p { margin-bottom: 1.5rem; }
        .article-body h2, .article-body h3 { margin-top: 2rem; margin-bottom: 0.75rem; }
        .article-body h2 { font-size: 1.6rem; border-bottom: 2px solid var(--clr-gray-200); padding-bottom: 0.5rem; }
        .article-body h3 { font-size: 1.25rem; }
        .article-body ul, .article-body ol { margin-bottom: 1.5rem; }
        .article-body li { margin-bottom: 0.4rem; }
        .article-body img { border-radius: var(--radius-md); margin: 1.5rem 0; box-shadow: var(--shadow-md); }
        .article-body blockquote {
            border-left: 4px solid var(--clr-primary);
            background: var(--clr-gray-100);
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--clr-gray-700);
            font-style: italic;
        }
        .article-body a { color: var(--clr-secondary); text-decoration: underline; }
        .article-body a:hover { color: var(--clr-primary); }

        /* Sidebar */
        .article-sidebar {
            position: sticky;
            top: 80px;
            align-self: start;
        }
        .sidebar-card {
            background: var(--clr-gray-100);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            border: 1px solid var(--clr-border);
        }
        .sidebar-card h4 {
            font-size: 1rem;
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--clr-dark);
        }
        .sidebar-card h4 i { color: var(--clr-primary); }
        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .sidebar-tags .tag {
            background: var(--clr-white);
            color: var(--clr-gray-700);
            font-size: 0.78rem;
            padding: 0.3rem 0.8rem;
            border-radius: 50px;
            border: 1px solid var(--clr-border);
            transition: var(--transition);
        }
        .sidebar-tags .tag:hover {
            background: var(--clr-primary);
            color: var(--clr-white);
            border-color: var(--clr-primary);
        }
        .sidebar-share {
            display: flex;
            gap: 0.5rem;
            margin-top: 0.5rem;
        }
        .sidebar-share a {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--clr-white);
            color: var(--clr-gray-700);
            border: 1px solid var(--clr-border);
            transition: var(--transition);
            font-size: 1rem;
        }
        .sidebar-share a:hover {
            background: var(--clr-primary);
            color: var(--clr-white);
            border-color: var(--clr-primary);
            transform: translateY(-2px);
        }

        /* ===== Article Nav (prev/next) ===== */
        .article-nav-section {
            padding: 2rem 0;
            background: var(--clr-white);
            border-top: 1px solid var(--clr-border);
        }
        .article-nav {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
        }
        .article-nav a {
            display: flex;
            flex-direction: column;
            gap: 0.3rem;
            padding: 1.2rem 1.5rem;
            background: var(--clr-gray-100);
            border-radius: var(--radius-md);
            border: 1px solid var(--clr-border);
            transition: var(--transition);
        }
        .article-nav a:hover {
            background: var(--clr-white);
            border-color: var(--clr-primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .article-nav .nav-label {
            font-size: 0.78rem;
            color: var(--clr-text-light);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .article-nav .nav-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--clr-dark);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .article-nav .nav-title i { color: var(--clr-primary); font-size: 0.8rem; }
        .article-nav .next { text-align: right; }
        .article-nav .next .nav-title { justify-content: flex-end; }

        /* ===== Related Articles ===== */
        .related-section {
            padding: 4rem 0;
            background: var(--clr-bg);
        }
        .related-section .section-title {
            font-size: 1.6rem;
            margin-bottom: 2rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .related-section .section-title i { color: var(--clr-primary); }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .related-card {
            background: var(--clr-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--clr-border);
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--clr-primary-light);
        }
        .related-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 0;
            display: block;
        }
        .related-card-body {
            padding: 1.2rem 1.2rem 1.5rem;
        }
        .related-card-body .cat-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--clr-primary);
            background: rgba(232,73,29,0.08);
            padding: 0.2rem 0.7rem;
            border-radius: 50px;
            margin-bottom: 0.5rem;
            letter-spacing: 0.3px;
        }
        .related-card-body h3 {
            font-size: 1rem;
            line-height: 1.4;
            margin-bottom: 0.4rem;
            color: var(--clr-dark);
        }
        .related-card-body h3 a { color: inherit; }
        .related-card-body h3 a:hover { color: var(--clr-primary); }
        .related-card-body .related-meta {
            font-size: 0.8rem;
            color: var(--clr-text-light);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .related-card-body .related-meta i { font-size: 0.75rem; }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 4rem 0;
            background: var(--clr-dark);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,23,36,0.9), rgba(232,73,29,0.3));
            z-index: 1;
        }
        .cta-section .container { position: relative; z-index: 2; text-align: center; }
        .cta-section h2 {
            color: var(--clr-white);
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            margin-bottom: 0.75rem;
        }
        .cta-section p {
            color: rgba(255,255,255,0.8);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto 1.8rem;
        }
        .cta-buttons {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1rem;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.8rem 2rem;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: 50px;
            transition: var(--transition);
            border: 2px solid transparent;
            text-decoration: none;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--clr-primary);
            color: var(--clr-white);
            border-color: var(--clr-primary);
            box-shadow: 0 4px 16px rgba(232,73,29,0.35);
        }
        .btn-primary:hover {
            background: var(--clr-primary-dark);
            border-color: var(--clr-primary-dark);
            color: var(--clr-white);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(232,73,29,0.4);
        }
        .btn-outline-light {
            background: transparent;
            color: var(--clr-white);
            border-color: rgba(255,255,255,0.5);
        }
        .btn-outline-light:hover {
            background: var(--clr-white);
            color: var(--clr-dark);
            border-color: var(--clr-white);
            transform: translateY(-2px);
        }
        .btn-sm { padding: 0.5rem 1.2rem; font-size: 0.85rem; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--clr-dark);
            color: rgba(255,255,255,0.7);
            padding: 4rem 0 0;
            border-top: 1px solid rgba(255,255,255,0.06);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-brand .site-logo { font-size: 1.25rem; margin-bottom: 0.8rem; display: inline-flex; }
        .footer-brand p { font-size: 0.88rem; color: rgba(255,255,255,0.6); line-height: 1.6; max-width: 320px; }
        .footer-col h5 {
            color: var(--clr-white);
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 1rem;
            letter-spacing: 0.3px;
        }
        .footer-col a {
            display: block;
            color: rgba(255,255,255,0.6);
            font-size: 0.88rem;
            padding: 0.3rem 0;
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--clr-primary); padding-left: 4px; }
        .footer-social { display: flex; gap: 0.6rem; }
        .footer-social a {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            color: rgba(255,255,255,0.6);
            font-size: 1rem;
            padding: 0;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--clr-primary);
            color: var(--clr-white);
            padding-left: 0;
            transform: translateY(-2px);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding: 1.5rem 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 0.5rem;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.4);
        }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 4rem 2rem;
            background: var(--clr-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--clr-border);
            box-shadow: var(--shadow-md);
        }
        .not-found-box i { font-size: 3rem; color: var(--clr-gray-300); margin-bottom: 1rem; }
        .not-found-box h2 { font-size: 1.5rem; margin-bottom: 0.5rem; }
        .not-found-box p { color: var(--clr-text-light); margin-bottom: 1.5rem; }
        .not-found-box .btn { margin-top: 0.5rem; }

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

        @media (max-width: 768px) {
            :root { --container-padding: 1rem; --section-gap: 3rem; }
            .header-inner { padding: 0.5rem 0; }
            .site-logo { font-size: 1.1rem; }
            .header-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: var(--clr-dark-light);
                padding: 0.75rem;
                border-radius: var(--radius-md);
                margin-top: 0.5rem;
                gap: 0.2rem;
                border: 1px solid rgba(255,255,255,0.06);
            }
            .header-nav.open { display: flex; }
            .header-nav .nav-link { width: 100%; justify-content: flex-start; padding: 0.6rem 1rem; }
            .menu-toggle { display: block; }
            .header-inner { flex-wrap: wrap; }
            .article-hero { padding: 2.5rem 0; min-height: 240px; }
            .article-hero h1 { font-size: 1.4rem; }
            .article-hero-meta { gap: 0.5rem 1rem; font-size: 0.82rem; flex-wrap: wrap; }
            .article-hero-excerpt { font-size: 0.92rem; }
            .article-content-section { padding: 2rem 0; }
            .article-body { font-size: 0.98rem; }
            .article-sidebar { grid-template-columns: 1fr; }
            .article-nav { grid-template-columns: 1fr; gap: 1rem; }
            .article-nav .next { text-align: left; }
            .article-nav .next .nav-title { justify-content: flex-start; }
            .related-grid { grid-template-columns: 1fr; gap: 1rem; }
            .related-card-img { height: 200px; }
            .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .cta-section { padding: 2.5rem 0; }
            .cta-section h2 { font-size: 1.4rem; }
            .btn { padding: 0.6rem 1.5rem; font-size: 0.88rem; }
        }

        @media (max-width: 520px) {
            .article-hero h1 { font-size: 1.2rem; }
            .article-hero-excerpt { font-size: 0.85rem; }
            .article-body { font-size: 0.92rem; }
            .related-card-img { height: 160px; }
            .sidebar-card { padding: 1rem; }
        }

        /* ===== Print ===== */
        @media print {
            .site-header, .site-footer, .cta-section, .related-section, .article-nav-section, .article-sidebar, .reading-progress { display: none; }
            .article-hero { min-height: auto; padding: 1rem 0; background: none !important; }
            .article-hero::before { display: none; }
            .article-hero h1 { color: var(--clr-dark); }
            .article-hero-meta { color: var(--clr-text-light); }
            .article-content-section { padding: 1rem 0; }
            .article-layout { grid-template-columns: 1fr; }
        }