/* roulang page: index */
/* ====== 设计变量 ====== */
        :root {
            --primary: #e63946;
            --primary-hover: #ff5a5f;
            --dark-bg: #0b0d14;
            --panel-bg: #131722;
            --border-color: #232838;
            --text-main: #e8eaf0;
            --text-muted: #8a90a3;
            --radius-md: 0.75rem;
            --radius-lg: 1.25rem;
            --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.25);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            background-color: var(--dark-bg);
            color: var(--text-main);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }

        input, textarea {
            font-family: inherit;
        }

        /* ====== 导航悬浮胶囊 ====== */
        .nav-capsule {
            position: fixed;
            top: 1.25rem;
            left: 50%;
            transform: translateX(-50%);
            z-index: 100;
            width: calc(100% - 2rem);
            max-width: 72rem;
            background: rgba(19, 23, 34, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-color);
            border-radius: 999px;
            padding: 0.6rem 1rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }

        .nav-capsule.scrolled {
            background: rgba(11, 13, 20, 0.95);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
        }

        .nav-logo {
            font-size: 1.1rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
        }

        .nav-logo .brand-dot {
            width: 8px;
            height: 8px;
            background: var(--primary);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 12px rgba(230, 57, 70, 0.6);
            flex-shrink: 0;
        }

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

        .nav-link {
            padding: 0.45rem 1rem;
            border-radius: 999px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-link.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.3);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: var(--primary);
            color: #fff;
            border-radius: 999px;
            padding: 0.5rem 1.25rem;
            font-size: 0.875rem;
            font-weight: 600;
            transition: background 0.2s ease, transform 0.2s ease;
        }

        .nav-cta:hover {
            background: var(--primary-hover);
            transform: translateY(-1px);
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.25rem;
            padding: 0.5rem;
            border-radius: 999px;
        }

        @media (max-width: 768px) {
            .nav-links,
            .nav-cta {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            .nav-capsule {
                padding: 0.5rem 0.75rem;
                width: calc(100% - 1rem);
                top: 0.75rem;
            }
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 4.5rem;
            left: 1rem;
            right: 1rem;
            background: var(--panel-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1rem;
            z-index: 99;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-menu a {
            display: block;
            padding: 0.75rem 1rem;
            border-radius: var(--radius-md);
            color: var(--text-main);
            font-size: 0.9375rem;
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: rgba(255, 255, 255, 0.06);
            color: #fff;
        }

        /* ====== 通用容器 ====== */
        .container-site {
            width: 100%;
            max-width: 72rem;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        @media (max-width: 768px) {
            .container-site {
                padding: 0 1rem;
            }
        }

        /* ====== Hero 区 ====== */
        .hero-section {
            min-height: 680px;
            position: relative;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            isolation: isolate;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            z-index: -1;
            background: linear-gradient(135deg, rgba(11, 13, 20, 0.95) 0%, rgba(11, 13, 20, 0.78) 50%, rgba(11, 13, 20, 0.55) 100%);
        }

        /* ====== 板块间距 ====== */
        .section {
            padding: 4.5rem 0;
        }

        .section-alt {
            background: var(--panel-bg);
        }

        @media (max-width: 1024px) {
            .section {
                padding: 3.5rem 0;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 2.5rem 0;
            }
            .hero-section {
                min-height: 560px;
            }
        }

        @media (max-width: 520px) {
            .hero-section {
                min-height: 480px;
            }
        }

        /* ====== 卡片 ====== */
        .card-base {
            background: var(--panel-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }

        .card-base:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.3);
            border-color: rgba(230, 57, 70, 0.3);
        }

        /* ====== 步骤条 ====== */
        .step-item {
            position: relative;
            padding-left: 2.5rem;
            padding-bottom: 2rem;
        }

        .step-item::before {
            content: '';
            position: absolute;
            left: 0.75rem;
            top: 0.3rem;
            width: 2px;
            height: calc(100% - 1.5rem);
            background: var(--border-color);
        }

        .step-item:last-child::before {
            display: none;
        }

        .step-dot {
            position: absolute;
            left: 0;
            top: 0;
            width: 1.5rem;
            height: 1.5rem;
            border-radius: 50%;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            font-weight: 700;
            color: #fff;
            box-shadow: 0 0 10px rgba(230, 57, 70, 0.4);
        }

        /* ====== FAQ ====== */
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            background: var(--panel-bg);
            overflow: hidden;
            margin-bottom: 0.75rem;
            transition: border-color 0.25s ease;
        }

        .faq-item:hover {
            border-color: rgba(230, 57, 70, 0.3);
        }

        .faq-toggle {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.1rem 1.25rem;
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--text-main);
            text-align: left;
            transition: background 0.2s ease;
        }

        .faq-toggle:hover {
            background: rgba(255, 255, 255, 0.03);
        }

        .faq-toggle .icon {
            color: var(--text-muted);
            transition: transform 0.3s ease;
            font-size: 0.875rem;
            flex-shrink: 0;
            margin-left: 1rem;
        }

        .faq-toggle.open .icon {
            transform: rotate(180deg);
        }

        .faq-content {
            padding: 0 1.25rem 1.25rem;
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }

        .faq-content.open {
            display: block;
        }

        /* ====== 按钮 ====== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.9375rem;
            padding: 0.8rem 1.6rem;
            border-radius: 999px;
            transition: all 0.25s ease;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.25);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.35);
        }

        .btn-primary:focus-visible {
            outline: 2px solid #fff;
            outline-offset: 2px;
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            border: 1px solid var(--border-color);
            color: var(--text-main);
            font-weight: 500;
            font-size: 0.9375rem;
            padding: 0.8rem 1.6rem;
            border-radius: 999px;
            transition: all 0.25s ease;
            background: transparent;
        }

        .btn-ghost:hover {
            border-color: rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.05);
        }

        .btn-ghost:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ====== 标签 ====== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.25rem 0.75rem;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .badge-red {
            background: rgba(230, 57, 70, 0.12);
            color: #ff5a5f;
            border: 1px solid rgba(230, 57, 70, 0.25);
        }

        .badge-plain {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-muted);
            border: 1px solid var(--border-color);
        }

        /* ====== 统计数字 ====== */
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
        }

        @media (max-width: 1024px) {
            .stat-number {
                font-size: 2rem;
            }
        }

        @media (max-width: 520px) {
            .stat-number {
                font-size: 1.6rem;
            }
        }

        /* ====== 列表 ====== */
        .list-check {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .list-check li {
            position: relative;
            padding-left: 1.75rem;
            padding-bottom: 0.625rem;
            color: var(--text-muted);
            font-size: 0.9375rem;
        }

        .list-check li::before {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 0.1rem;
            color: var(--primary);
            font-size: 0.875rem;
        }

        /* ====== 资讯列表项 ====== */
        .news-item {
            display: flex;
            align-items: center;
            gap: 1.25rem;
            padding: 1.25rem;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            background: var(--panel-bg);
            transition: all 0.25s ease;
        }

        .news-item:hover {
            border-color: rgba(230, 57, 70, 0.4);
            transform: translateX(4px);
            box-shadow: 0 7px 24px rgba(0, 0, 0, 0.25);
        }

        @media (max-width: 768px) {
            .news-item {
                padding: 1rem;
                gap: 0.875rem;
            }
        }

        /* ====== 页脚 ====== */
        .footer-link {
            color: var(--text-muted);
            font-size: 0.875rem;
            transition: color 0.2s ease;
            display: inline-block;
            padding: 0.2rem 0;
        }

        .footer-link:hover {
            color: #fff;
        }

        /* ====== 输入框 ====== */
        .input-field {
            width: 100%;
            padding: 0.7rem 1rem;
            background: var(--dark-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            color: var(--text-main);
            font-size: 0.875rem;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }

        .input-field:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.15);
        }

        .input-field::placeholder {
            color: #565c70;
        }

        /* ====== 焦点可见性 ====== */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary-light, #ff5a5f);
            outline-offset: 2px;
        }

        /* ====== 分隔线 ====== */
        .divider {
            height: 1px;
            background: var(--border-color);
            border: none;
            margin: 1rem 0;
        }

/* roulang page: category1 */
:root {
    --primary: #e11d48;
    --primary-dark: #be123c;
    --accent: #f59e0b;
    --night: #0b1220;
    --bg: #f4f5f7;
    --card: #ffffff;
    --text: #0f172a;
    --muted: #64748b;
    --line: #e2e8f0;
    --radius: 18px;
    --radius-sm: 12px;
    --shadow: 0 20px 44px rgba(15, 23, 42, 0.08);
    --shadow-hover: 0 28px 56px rgba(15, 23, 42, 0.14);
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: 'Inter', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
}

.container-site {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Header / Nav ===== */
.site-header {
    position: fixed;
    top: 16px;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 0 16px;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    max-width: 1200px;
    margin: 0 auto;
    background: rgba(11, 18, 32, 0.86);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 999px;
    padding: 10px 16px 10px 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.22);
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    color: #fff;
    font-size: 18px;
    white-space: nowrap;
    letter-spacing: -0.2px;
}

.brand-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 12px rgba(225, 29, 72, 0.7);
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.7);
    transition: all 0.25s;
    white-space: nowrap;
}

.nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.12);
}

.nav-link.active {
    color: #fff;
    background: var(--primary);
    box-shadow: 0 4px 14px rgba(225, 29, 72, 0.4);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 24px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 700;
    transition: all 0.25s;
    border: 0;
    line-height: 1.2;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 8px 20px rgba(225, 29, 72, 0.35);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(225, 29, 72, 0.45);
}

.btn-ghost {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-ghost:hover {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

.btn-white {
    background: #fff;
    color: var(--primary);
}

.btn-white:hover {
    background: #f1f5f9;
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.2);
}

.btn-sm {
    padding: 8px 18px;
    font-size: 13px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: 0;
    padding: 8px;
    border-radius: 8px;
}

.nav-toggle span {
    width: 20px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: all 0.3s;
}

.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);
}

.mobile-menu {
    display: none;
    position: absolute;
    left: 16px;
    right: 16px;
    top: calc(100% + 10px);
    background: var(--night);
    border-radius: 20px;
    padding: 16px;
    flex-direction: column;
    gap: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.3);
}

.mobile-menu.open {
    display: flex;
}

.mobile-menu a {
    color: rgba(255, 255, 255, 0.8);
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    transition: all 0.2s;
}

.mobile-menu a:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}

.mobile-menu a.active {
    background: var(--primary);
    color: #fff;
}

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 78vh;
    display: flex;
    align-items: center;
    padding: 170px 0 100px;
    background-position: center;
    background-size: cover;
    background-color: var(--night);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(11, 18, 32, 0.96) 0%, rgba(11, 18, 32, 0.82) 50%, rgba(15, 23, 42, 0.62) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 999px;
    backdrop-filter: blur(6px);
}

.hero-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #22c55e;
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.3);
}

.hero-title {
    font-size: 44px;
    line-height: 1.2;
    font-weight: 900;
    color: #fff;
    margin: 18px 0 16px;
    letter-spacing: -0.5px;
}

.hero-title .text-accent {
    color: var(--accent);
}

.hero-sub {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.78);
    max-width: 720px;
    margin: 0 0 28px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 48px;
    padding: 24px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 20px;
    backdrop-filter: blur(8px);
}

.stat-item {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 30px;
    font-weight: 800;
    color: #fff;
    line-height: 1.2;
}

.stat-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.65);
    margin-top: 4px;
}

/* ===== Sections ===== */
.section-pad {
    padding: 90px 0;
}

.section-head {
    margin-bottom: 48px;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 700;
    color: var(--primary);
    background: rgba(225, 29, 72, 0.08);
    padding: 6px 14px;
    border-radius: 999px;
    letter-spacing: 0.5px;
}

.section-title {
    font-size: 34px;
    line-height: 1.25;
    font-weight: 800;
    color: var(--text);
    margin: 12px 0 14px;
    letter-spacing: -0.3px;
}

.section-sub {
    font-size: 16px;
    color: var(--muted);
    max-width: 720px;
    line-height: 1.8;
}

/* ===== Cards ===== */
.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(225, 29, 72, 0.25);
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    background: rgba(225, 29, 72, 0.1);
    color: var(--primary);
}

.card-title {
    font-size: 18px;
    font-weight: 700;
    margin: 16px 0 8px;
}

.card-text {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.8;
    margin: 0;
}

/* ===== Entry Cards ===== */
.entry-card {
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--card);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    transition: all 0.3s;
}

.entry-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(225, 29, 72, 0.2);
}

.entry-card-media {
    position: relative;
    height: 180px;
    overflow: hidden;
}

.entry-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.entry-card:hover .entry-card-media img {
    transform: scale(1.05);
}

.entry-card-media .badge {
    position: absolute;
    top: 12px;
    left: 12px;
}

.entry-card-body {
    padding: 22px;
}

.entry-card-body h3 {
    font-size: 18px;
    font-weight: 700;
    margin: 0 0 8px;
}

.entry-card-body p {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.75;
    margin: 0 0 14px;
}

.entry-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 700;
    color: var(--primary);
    transition: gap 0.2s;
}

.entry-link:hover {
    gap: 10px;
}

/* ===== Badge ===== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.92);
    color: var(--night);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

.badge-red {
    background: rgba(225, 29, 72, 0.12);
    color: var(--primary);
}

.badge-green {
    background: rgba(16, 185, 129, 0.12);
    color: #059669;
}

/* ===== Steps ===== */
.steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.step-item {
    position: relative;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 28px 24px;
    transition: all 0.3s;
}

.step-item:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
    border-color: rgba(225, 29, 72, 0.2);
}

.step-num {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--night);
    color: #fff;
    font-weight: 800;
    font-size: 18px;
    border-radius: 50%;
    margin-bottom: 16px;
    box-shadow: 0 6px 16px rgba(11, 18, 32, 0.25);
}

.step-title {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 6px;
}

.step-text {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.7;
    margin: 0;
}

/* ===== Status Panel ===== */
.status-panel {
    background: radial-gradient(1200px 500px at 100% 0%, rgba(225, 29, 72, 0.18), transparent 50%), var(--night);
    border-radius: 28px;
    padding: 48px;
    color: #fff;
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 48px;
    box-shadow: 0 30px 60px rgba(11, 18, 32, 0.35);
    position: relative;
    overflow: hidden;
}

.panel-title {
    font-size: 22px;
    font-weight: 800;
    margin: 0 0 8px;
}

.panel-sub {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    margin-bottom: 24px;
}

.status-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.status-value {
    display: block;
    font-size: 34px;
    font-weight: 800;
    line-height: 1.1;
}

.status-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 6px;
}

.status-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.status-entry {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 14px 18px;
    border-radius: 14px;
    font-size: 14px;
}

.status-entry .left {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
}

.status-entry .time {
    color: rgba(255, 255, 255, 0.55);
    font-size: 13px;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #22c55e;
    box-shadow: 0 0 8px rgba(34, 197, 94, 0.6);
    flex-shrink: 0;
}

.dot.warn {
    background: #f59e0b;
    box-shadow: 0 0 8px rgba(245, 158, 11, 0.6);
}

/* ===== Detail List ===== */
.detail-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 28px;
    margin-bottom: 14px;
    transition: all 0.25s;
}

.detail-item:hover {
    border-color: rgba(225, 29, 72, 0.2);
    box-shadow: var(--shadow);
}

.detail-index {
    width: 46px;
    height: 46px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(225, 29, 72, 0.08);
    color: var(--primary);
    font-weight: 800;
    font-size: 18px;
}

.detail-content h3 {
    font-size: 17px;
    font-weight: 700;
    margin: 0 0 6px;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.detail-content p {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.8;
    margin: 0;
}

/* ===== FAQ ===== */
.faq-wrap {
    max-width: 860px;
    margin: 0 auto;
}

.faq-item {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 16px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: border-color 0.2s;
}

.faq-item:hover {
    border-color: rgba(225, 29, 72, 0.2);
}

.faq-item summary {
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 16px;
    font-weight: 700;
    padding: 20px 24px;
    color: var(--text);
    line-height: 1.5;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    font-size: 22px;
    font-weight: 400;
    color: var(--primary);
    transition: transform 0.3s;
    line-height: 1;
    margin-left: 16px;
}

.faq-item details[open] summary::after {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 24px 22px;
    color: var(--muted);
    font-size: 15px;
    line-height: 1.8;
}

/* ===== CTA ===== */
.cta-card {
    position: relative;
    background: linear-gradient(135deg, rgba(225, 29, 72, 0.94), rgba(159, 18, 57, 0.96)), url('/assets/images/backpic/back-2.png') center/cover;
    border-radius: 28px;
    padding: 60px 40px;
    text-align: center;
    color: #fff;
    overflow: hidden;
    box-shadow: 0 24px 50px rgba(225, 29, 72, 0.28);
}

.cta-card h2 {
    font-size: 28px;
    font-weight: 800;
    margin: 0 0 12px;
    line-height: 1.3;
}

.cta-card p {
    font-size: 15px;
    opacity: 0.92;
    max-width: 560px;
    margin: 0 auto 26px;
    line-height: 1.8;
}

/* ===== Footer ===== */
.border-line {
    border-color: rgba(255, 255, 255, 0.08);
}

.bg-night {
    background-color: var(--night);
}

.footer-link {
    color: #94a3b8;
    font-size: 14px;
    transition: color 0.2s;
    display: inline-block;
}

.footer-link:hover {
    color: #fff;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 36px;
    }

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

    .status-panel {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 900px) {
    .nav-links {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .header-inner {
        border-radius: 20px;
    }

    .hero {
        min-height: auto;
        padding: 150px 0 80px;
    }
}

@media (max-width: 768px) {
    .container-site {
        padding: 0 16px;
    }

    .section-pad {
        padding: 64px 0;
    }

    .section-title {
        font-size: 26px;
    }

    .hero-title {
        font-size: 30px;
    }

    .hero-sub {
        font-size: 15px;
    }

    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
        padding: 20px;
        margin-top: 36px;
    }

    .stat-value {
        font-size: 24px;
    }

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

    .status-panel {
        padding: 32px 24px;
        border-radius: 22px;
    }

    .status-grid {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }

    .status-value {
        font-size: 28px;
    }

    .detail-item {
        flex-direction: column;
        gap: 14px;
        padding: 22px;
    }

    .cta-card {
        padding: 40px 24px;
        border-radius: 22px;
    }

    .cta-card h2 {
        font-size: 22px;
    }
}

@media (max-width: 520px) {
    .header-actions .btn {
        display: none;
    }

    .brand-text {
        font-size: 15px;
    }

    .hero-badge {
        font-size: 12px;
    }

    .hero-title {
        font-size: 26px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-actions .btn {
        width: 100%;
    }

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

    .section-title {
        font-size: 24px;
    }

    .status-entry {
        font-size: 13px;
        padding: 12px 14px;
    }
}

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --night: #0B1120;
            --panel: #131C2E;
            --accent: #FF4D2E;
            --amber: #F59E0B;
            --body-bg: #F8FAFC;
            --body-text: #1E293B;
            --muted-text: #64748B;
            --line-color: rgba(255, 255, 255, 0.08);
            --border-color: #E2E8F0;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-full: 999px;
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
            --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.1);
            --shadow-lg: 0 16px 48px rgba(15, 23, 42, 0.16);
            --transition: all 0.3s 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: 'Inter', 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--body-bg);
            color: var(--body-text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }

        input,
        textarea {
            font-family: inherit;
        }

        /* ===== 容器 ===== */
        .container-site {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* ===== Header / 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 1.25rem 0;
            transition: var(--transition);
        }

        .nav-shell {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
            background: rgba(11, 17, 32, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-full);
            padding: 0.75rem 1.5rem;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 800;
            font-size: 1.125rem;
            color: #fff;
            white-space: nowrap;
            letter-spacing: -0.01em;
        }

        .brand-dot {
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            box-shadow: 0 0 0 4px rgba(255, 77, 46, 0.25);
            animation: pulseDot 2s infinite;
            flex-shrink: 0;
        }

        @keyframes pulseDot {
            0%,
            100% {
                box-shadow: 0 0 0 4px rgba(255, 77, 46, 0.25);
            }
            50% {
                box-shadow: 0 0 0 8px rgba(255, 77, 46, 0.1);
            }
        }

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

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.5rem 1rem;
            border-radius: var(--radius-full);
            font-size: 0.875rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        .nav-link.active {
            color: #fff;
            background: linear-gradient(135deg, #FF4D2E, #F59E0B);
            box-shadow: 0 4px 16px rgba(255, 77, 46, 0.35);
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
        }

        /* ===== 文章 Hero ===== */
        .article-hero {
            position: relative;
            padding: 10rem 0 5rem;
            background: linear-gradient(135deg, #0B1120 0%, #1E293B 100%);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 17, 32, 0.72) 0%, rgba(11, 17, 32, 0.55) 50%, rgba(11, 17, 32, 0.88) 100%);
            z-index: 1;
        }

        .article-hero .grid-overlay {
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 40px 40px;
            z-index: 1;
        }

        .article-hero .container-site {
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.4rem 1rem;
            border-radius: var(--radius-full);
            background: rgba(255, 77, 46, 0.15);
            border: 1px solid rgba(255, 77, 46, 0.4);
            color: #FF8A6E;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 1.25rem;
            letter-spacing: 0.02em;
        }

        .hero-title {
            color: #fff;
            font-size: clamp(1.75rem, 4vw, 2.75rem);
            font-weight: 800;
            line-height: 1.25;
            max-width: 880px;
            margin-bottom: 1.25rem;
            text-shadow: 0 2px 24px rgba(0, 0, 0, 0.3);
        }

        .hero-desc {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.0625rem;
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 2rem;
        }

        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
        }

        .hero-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.4rem 0.9rem;
            border-radius: var(--radius-full);
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.8rem;
            font-weight: 500;
            backdrop-filter: blur(8px);
        }

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

        /* ===== 文章主体 ===== */
        .article-wrap {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 360px;
            gap: 2.5rem;
            padding-top: 2.5rem;
            padding-bottom: 4rem;
            align-items: start;
        }

        .article-main {
            min-width: 0;
        }

        .article-body {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }

        .article-body h2 {
            font-size: 1.65rem;
            font-weight: 700;
            color: var(--night);
            margin: 2.5rem 0 1.25rem;
            padding-left: 1rem;
            border-left: 4px solid var(--accent);
            line-height: 1.3;
        }

        .article-body h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--night);
            margin: 2rem 0 1rem;
            line-height: 1.4;
        }

        .article-body p {
            color: #334155;
            font-size: 1.0625rem;
            line-height: 1.85;
            margin-bottom: 1.5rem;
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 1.5rem;
            padding: 0;
            list-style: none;
        }

        .article-body ul li {
            position: relative;
            padding-left: 1.6rem;
            margin-bottom: 0.75rem;
            color: #334155;
            font-size: 1.0625rem;
            line-height: 1.7;
        }

        .article-body ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0.72em;
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 2px;
        }

        .article-body ol {
            counter-reset: list-counter;
        }

        .article-body ol li {
            counter-increment: list-counter;
            position: relative;
            padding-left: 2.2rem;
            margin-bottom: 0.75rem;
            color: #334155;
            font-size: 1.0625rem;
            line-height: 1.7;
        }

        .article-body ol li::before {
            content: counter(list-counter);
            position: absolute;
            left: 0;
            top: 0.15em;
            width: 1.6rem;
            height: 1.6rem;
            background: rgba(255, 77, 46, 0.1);
            color: var(--accent);
            border-radius: 50%;
            font-size: 0.8rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .article-body a {
            color: var(--accent);
            font-weight: 600;
            border-bottom: 1px solid rgba(255, 77, 46, 0.3);
        }

        .article-body a:hover {
            color: #D63A1E;
            border-bottom-color: var(--accent);
        }

        .article-body blockquote {
            border-left: 4px solid var(--amber);
            background: #FFFBEB;
            padding: 1.25rem 1.5rem;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin: 1.5rem 0;
            color: #92400E;
            font-size: 1rem;
            font-style: italic;
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 1.5rem 0;
            box-shadow: var(--shadow-md);
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.95rem;
        }

        .article-body th,
        .article-body td {
            padding: 0.75rem 1rem;
            border: 1px solid var(--border-color);
            text-align: left;
        }

        .article-body th {
            background: var(--night);
            color: #fff;
            font-weight: 600;
        }

        .article-body tr:nth-child(even) td {
            background: #F8FAFC;
        }

        .article-body .tip-box,
        .article-body .warning-box,
        .article-body .note-box {
            border-radius: var(--radius-md);
            padding: 1.25rem 1.5rem;
            margin: 1.5rem 0;
            border-left: 4px solid;
            font-size: 0.975rem;
            line-height: 1.7;
        }

        .article-body .tip-box {
            background: #ECFDF5;
            border-left-color: #10B981;
            color: #065F46;
        }

        .article-body .warning-box {
            background: #FFF7ED;
            border-left-color: #F59E0B;
            color: #92400E;
        }

        .article-body .note-box {
            background: #EFF6FF;
            border-left-color: #3B82F6;
            color: #1E40AF;
        }

        /* ===== 文章标签 ===== */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.5rem;
            margin-top: 1.5rem;
            padding: 1.25rem 1.5rem;
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
        }

        .tag-label {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--night);
            margin-right: 0.25rem;
        }

        .tag-label i {
            color: var(--accent);
            margin-right: 0.3rem;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            padding: 0.35rem 0.85rem;
            background: rgba(255, 77, 46, 0.08);
            border: 1px solid rgba(255, 77, 46, 0.2);
            color: #D63A1E;
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            font-weight: 500;
            transition: var(--transition);
        }

        .tag:hover {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
            transform: translateY(-2px);
        }

        /* ===== 文章底部导航 ===== */
        .article-footer-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            margin-top: 1.5rem;
        }

        /* ===== 侧边栏 ===== */
        .article-side {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            position: sticky;
            top: 100px;
        }

        .widget {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 1.75rem;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }

        .widget-title {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1rem;
            font-weight: 700;
            color: var(--night);
            margin-bottom: 1.25rem;
            padding-bottom: 0.9rem;
            border-bottom: 1px solid var(--border-color);
        }

        .widget-title .dot {
            width: 8px;
            height: 8px;
            background: var(--accent);
            border-radius: 2px;
            flex-shrink: 0;
        }

        .info-list {
            display: flex;
            flex-direction: column;
            gap: 0.85rem;
        }

        .info-list .info-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0.65rem 0.9rem;
            background: var(--body-bg);
            border-radius: var(--radius-md);
            font-size: 0.875rem;
        }

        .info-list .info-label {
            color: var(--muted-text);
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .info-list .info-label i {
            color: var(--accent);
            font-size: 0.8rem;
            width: 1rem;
        }

        .info-list .info-value {
            color: var(--night);
            font-weight: 600;
            text-align: right;
        }

        .quick-links {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .quick-link {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.75rem 1rem;
            background: var(--body-bg);
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--night);
            transition: var(--transition);
        }

        .quick-link i {
            color: var(--accent);
            font-size: 0.85rem;
            transition: var(--transition);
        }

        .quick-link:hover {
            background: var(--night);
            color: #fff;
            transform: translateX(4px);
        }

        .quick-link:hover i {
            color: var(--amber);
        }

        .mini-post-list {
            display: flex;
            flex-direction: column;
            gap: 0.85rem;
        }

        .mini-post-item {
            display: flex;
            gap: 0.85rem;
            align-items: flex-start;
            padding: 0.6rem;
            border-radius: var(--radius-md);
            transition: var(--transition);
        }

        .mini-post-item:hover {
            background: var(--body-bg);
            transform: translateX(3px);
        }

        .mini-post-item img {
            width: 56px;
            height: 56px;
            border-radius: 10px;
            object-fit: cover;
            flex-shrink: 0;
        }

        .mini-post-item h4 {
            font-size: 0.84rem;
            font-weight: 600;
            color: var(--night);
            line-height: 1.45;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0.25rem;
        }

        .mini-post-item span {
            font-size: 0.72rem;
            color: var(--muted-text);
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.8rem 1.75rem;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.925rem;
            transition: var(--transition);
            border: 1px solid transparent;
            line-height: 1.2;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent), #F97316);
            color: #fff;
            box-shadow: 0 6px 20px rgba(255, 77, 46, 0.35);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(255, 77, 46, 0.45);
        }

        .btn-ghost {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.25);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: var(--accent);
            border-color: rgba(255, 77, 46, 0.4);
        }

        .btn-outline:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn:focus-visible {
            outline: 3px solid rgba(255, 77, 46, 0.5);
            outline-offset: 2px;
        }

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

        .section-head {
            margin-bottom: 2.5rem;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--accent);
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 0.75rem;
        }

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

        .section-title {
            font-size: clamp(1.6rem, 3vw, 2.25rem);
            font-weight: 800;
            color: var(--night);
            line-height: 1.3;
            margin-bottom: 0.75rem;
        }

        .section-desc {
            color: var(--muted-text);
            font-size: 1.02rem;
            max-width: 640px;
            line-height: 1.7;
        }

        .post-card {
            display: block;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
        }

        .post-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(255, 77, 46, 0.3);
        }

        .post-card .card-img {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }

        .post-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .post-card .card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(11, 17, 32, 0.4));
        }

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

        .card-cat {
            display: inline-block;
            padding: 0.3rem 0.75rem;
            background: rgba(255, 77, 46, 0.08);
            border-radius: var(--radius-full);
            color: #D63A1E;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
            letter-spacing: 0.02em;
        }

        .post-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--night);
            line-height: 1.4;
            margin-bottom: 0.5rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .post-card p {
            font-size: 0.875rem;
            color: var(--muted-text);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 1rem;
            padding-top: 1rem;
            border-top: 1px solid var(--border-color);
            font-size: 0.8rem;
            color: var(--muted-text);
        }

        .card-meta i {
            margin-right: 0.35rem;
            font-size: 0.75rem;
            color: var(--accent);
        }

        .card-arrow {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            background: var(--body-bg);
            border-radius: 50%;
            color: var(--night);
            transition: var(--transition);
        }

        .post-card:hover .card-arrow {
            background: var(--accent);
            color: #fff;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 5rem 0;
            background: var(--night);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(11, 17, 32, 0.88);
        }

        .cta-section .container-site {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .cta-title {
            color: #fff;
            font-size: clamp(1.6rem, 3vw, 2.25rem);
            font-weight: 800;
            margin-bottom: 1rem;
        }

        .cta-desc {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.0625rem;
            max-width: 640px;
            margin: 0 auto 2rem;
            line-height: 1.8;
        }

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

        /* ===== FAQ ===== */
        .faq-section {
            padding: 4rem 0;
            background: var(--body-bg);
        }

        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 1.25rem;
            margin-top: 2rem;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            transition: var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(255, 77, 46, 0.25);
        }

        .faq-q {
            font-size: 1rem;
            font-weight: 700;
            color: var(--night);
            display: flex;
            gap: 0.6rem;
            margin-bottom: 0.75rem;
        }

        .faq-q .q-icon {
            color: var(--accent);
            flex-shrink: 0;
            font-size: 0.85rem;
            margin-top: 0.2em;
        }

        .faq-a {
            color: var(--muted-text);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        /* ===== Not Found ===== */
        .not-found-block {
            padding: 4rem 1.5rem;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }

        .not-found-code {
            font-size: 5rem;
            font-weight: 900;
            color: transparent;
            -webkit-text-stroke: 2px rgba(11, 17, 32, 0.2);
            margin-bottom: 1rem;
            line-height: 1;
        }

        .not-found-title {
            color: var(--night);
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 1rem;
        }

        .not-found-desc {
            color: var(--muted-text);
            font-size: 1.0625rem;
            margin-bottom: 2rem;
            max-width: 480px;
        }

        /* ===== Footer ===== */
        .footer-link {
            display: inline-block;
            padding: 0.35rem 0;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .footer-link:hover {
            color: var(--accent);
            transform: translateX(4px);
        }

        /* ===== 焦点状态 ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(255, 77, 46, 0.5);
            outline-offset: 2px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-wrap {
                grid-template-columns: 1fr;
            }

            .article-side {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }

            .widget {
                flex: 1;
                min-width: 240px;
            }

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

        @media (max-width: 768px) {
            .site-header {
                padding: 0.75rem 1rem;
            }

            .nav-shell {
                padding: 0.6rem 1rem;
                border-radius: 18px;
            }

            .nav-links {
                position: fixed;
                top: 76px;
                left: 1rem;
                right: 1rem;
                background: rgba(11, 17, 32, 0.97);
                backdrop-filter: blur(20px);
                border-radius: 20px;
                padding: 1rem;
                flex-direction: column;
                align-items: stretch;
                gap: 0.35rem;
                opacity: 0;
                visibility: hidden;
                transform: translateY(-12px);
                transition: var(--transition);
                z-index: 1001;
                box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
                border: 1px solid rgba(255, 255, 255, 0.1);
            }

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

            .nav-link {
                padding: 1rem 1.25rem;
                border-radius: 12px;
                font-size: 0.95rem;
            }

            .nav-toggle {
                display: flex;
            }

            .article-hero {
                padding: 8rem 0 3.5rem;
            }

            .article-body {
                padding: 1.5rem;
            }

            .hero-title {
                font-size: 1.6rem;
            }

            .article-wrap {
                padding-top: 1.5rem;
                padding-bottom: 2.5rem;
                gap: 1.5rem;
            }

            .related-section {
                padding: 3rem 0;
            }

            .faq-section {
                padding: 3rem 0;
            }

            .cta-section {
                padding: 3.5rem 0;
            }
        }

        @media (max-width: 520px) {
            .container-site {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .hero-meta {
                flex-direction: column;
                align-items: flex-start;
            }

            .article-body {
                padding: 1.25rem;
                border-radius: 16px;
            }

            .article-body h2 {
                font-size: 1.4rem;
            }

            .article-body p {
                font-size: 1rem;
            }

            .logo {
                font-size: 0.95rem;
            }

            .nav-shell {
                padding: 0.5rem 0.9rem;
            }

            .btn {
                padding: 0.7rem 1.4rem;
                font-size: 0.875rem;
            }

            .article-tags {
                padding: 1rem;
            }

            .not-found-code {
                font-size: 3.5rem;
            }

            .not-found-title {
                font-size: 1.5rem;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #e63946;
            --primary-dark: #c72a36;
            --secondary: #8d99ae;
            --night: #0d1321;
            --night-light: #1d2b3f;
            --line: #2a3a52;
            --text-light: #e8edf3;
            --text-muted: #94a3b8;
            --bgdark: #0a0f1a;
        }
        html { scroll-behavior: smooth; }
        body {
            background-color: var(--bgdark);
            color: #e2e8f0;
            font-family: 'Inter', system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        a { text-decoration: none; color: inherit; }
        img { max-width: 100%; display: block; }
        button, input { font: inherit; border: none; outline: none; }

        .container-site {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 悬浮胶囊导航 */
        .site-header {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 100;
            width: calc(100% - 32px);
            max-width: 980px;
            background: rgba(13, 19, 33, 0.82);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid rgba(42, 58, 82, 0.8);
            border-radius: 60px;
            padding: 10px 20px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }
        .nav-link {
            display: block;
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 500;
            color: #cbd5e1;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .nav-link:hover {
            background: rgba(230, 57, 70, 0.1);
            color: #fff;
        }
        .nav-link.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.4);
        }
        .brand-dot {
            width: 10px;
            height: 10px;
            background: var(--primary);
            border-radius: 50%;
            display: inline-block;
            flex-shrink: 0;
            box-shadow: 0 0 10px rgba(230, 57, 70, 0.6);
        }
        .mobile-menu-btn {
            display: none;
            background: transparent;
            color: #cbd5e1;
            font-size: 22px;
            cursor: pointer;
            padding: 6px;
        }

        .hero-section {
            position: relative;
            padding: 160px 0 90px;
            background: linear-gradient(135deg, #0a0f1a 0%, #16233a 55%, #1d2b3f 100%);
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0; left: 0; right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bgdark), transparent);
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(230, 57, 70, 0.15);
            border: 1px solid rgba(230, 57, 70, 0.3);
            border-radius: 40px;
            padding: 6px 18px;
            font-size: 13px;
            font-weight: 500;
            color: #ffb4bb;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .hero-title {
            font-size: clamp(32px, 6vw, 48px);
            font-weight: 800;
            line-height: 1.15;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .hero-title .accent {
            color: var(--primary);
        }
        .hero-sub {
            font-size: 16px;
            color: #94a3b8;
            max-width: 580px;
            margin-bottom: 32px;
            line-height: 1.8;
        }
        .hero-stats {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            margin-bottom: 36px;
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .hero-stat .num {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
        }
        .hero-stat .label {
            font-size: 13px;
            color: #64748b;
        }
        .btn-group {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            padding: 12px 28px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 600;
            transition: all 0.2s ease;
            border: none;
            cursor: pointer;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.35);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: #e2e8f0;
            padding: 11px 28px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 500;
            border: 1px solid rgba(148, 163, 184, 0.4);
            transition: all 0.2s ease;
            cursor: pointer;
        }
        .btn-outline:hover {
            border-color: rgba(230, 57, 70, 0.6);
            color: #fff;
            background: rgba(230, 57, 70, 0.06);
        }

        .section {
            padding: 80px 0;
        }
        .section-dark {
            background: var(--night);
        }
        .section-bg {
            position: relative;
        }
        .section-bg::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.06;
        }
        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
        }
        .section-tag {
            display: inline-block;
            background: rgba(230, 57, 70, 0.1);
            border: 1px solid rgba(230, 57, 70, 0.2);
            color: #ff8a93;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 40px;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .section-title {
            font-size: clamp(26px, 4vw, 36px);
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 12px;
        }
        .section-desc {
            font-size: 15px;
            color: #94a3b8;
            line-height: 1.8;
        }

        .grid-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .grid-cards-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .grid-cards-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .card {
            background: var(--night-light);
            border: 1px solid var(--line);
            border-radius: 16px;
            padding: 32px 28px;
            transition: all 0.25s ease;
            height: 100%;
        }
        .card:hover {
            border-color: rgba(230, 57, 70, 0.4);
            transform: translateY(-4px);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.4), 0 0 20px rgba(230, 57, 70, 0.05);
        }
        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(230, 57, 70, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            margin-bottom: 20px;
            border: 1px solid rgba(230, 57, 70, 0.2);
        }
        .card-icon.accent-2 {
            background: rgba(59, 130, 246, 0.15);
            color: #60a5fa;
            border-color: rgba(59, 130, 246, 0.25);
        }
        .card-icon.accent-3 {
            background: rgba(16, 185, 129, 0.15);
            color: #34d399;
            border-color: rgba(16, 185, 129, 0.25);
        }
        .card-icon.accent-4 {
            background: rgba(245, 158, 11, 0.15);
            color: #fbbf24;
            border-color: rgba(245, 158, 11, 0.25);
        }
        .card-title {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .card-text {
            font-size: 14px;
            color: #94a3b8;
            line-height: 1.7;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(230, 57, 70, 0.12);
            color: #fda4af;
            border: 1px solid rgba(230, 57, 70, 0.2);
            border-radius: 30px;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 500;
        }
        .badge-blue {
            background: rgba(59, 130, 246, 0.12);
            color: #93c5fd;
            border-color: rgba(59, 130, 246, 0.2);
        }
        .badge-green {
            background: rgba(16, 185, 129, 0.12);
            color: #6ee7b7;
            border-color: rgba(16, 185, 129, 0.2);
        }

        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-card {
            position: relative;
            background: rgba(29, 43, 63, 0.6);
            border: 1px solid var(--line);
            border-radius: 16px;
            padding: 32px 24px 24px;
            text-align: center;
            transition: all 0.25s ease;
        }
        .step-card::before {
            counter-increment: step;
            content: '0' counter(step);
            position: absolute;
            top: 18px;
            left: 20px;
            font-size: 14px;
            font-weight: 800;
            color: rgba(230, 57, 70, 0.5);
            letter-spacing: 1px;
        }
        .step-card:hover {
            border-color: rgba(230, 57, 70, 0.4);
            transform: translateY(-4px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
        }
        .step-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: rgba(230, 57, 70, 0.12);
            border: 1px solid rgba(230, 57, 70, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            color: var(--primary);
        }
        .step-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .step-desc {
            font-size: 13px;
            color: #94a3b8;
            line-height: 1.6;
        }

        .feature-card {
            display: flex;
            gap: 20px;
            background: var(--night-light);
            border: 1px solid var(--line);
            border-radius: 16px;
            padding: 24px;
            transition: all 0.25s ease;
        }
        .feature-card:hover {
            border-color: rgba(230, 57, 70, 0.35);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
        }
        .feature-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(230, 57, 70, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--primary);
        }
        .feature-body h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .feature-body p {
            font-size: 13px;
            color: #94a3b8;
            line-height: 1.6;
        }

        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .data-card {
            background: var(--night-light);
            border: 1px solid var(--line);
            border-radius: 16px;
            padding: 28px 24px;
            text-align: center;
            transition: all 0.25s ease;
        }
        .data-card:hover {
            border-color: rgba(230, 57, 70, 0.4);
            transform: translateY(-3px);
        }
        .data-card .num {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
            margin-bottom: 8px;
        }
        .data-card .num .unit {
            font-size: 20px;
            color: var(--primary);
        }
        .data-card .label {
            font-size: 13px;
            color: #94a3b8;
        }

        .faq-item {
            background: var(--night-light);
            border: 1px solid var(--line);
            border-radius: 14px;
            padding: 24px 28px;
            margin-bottom: 16px;
            transition: border-color 0.2s ease;
        }
        .faq-item:hover {
            border-color: rgba(230, 57, 70, 0.3);
        }
        .faq-q {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 10px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .faq-q::before {
            content: 'Q';
            color: var(--primary);
            font-weight: 800;
            font-size: 15px;
            flex-shrink: 0;
            background: rgba(230, 57, 70, 0.12);
            width: 24px;
            height: 24px;
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            margin-top: 2px;
        }
        .faq-a {
            font-size: 14px;
            color: #94a3b8;
            line-height: 1.8;
            padding-left: 34px;
        }

        .cta-section {
            position: relative;
            padding: 80px 0;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            background: rgba(13, 19, 33, 0.7);
            border: 1px solid var(--line);
            border-radius: 24px;
            padding: 60px 40px;
            backdrop-filter: blur(10px);
        }
        .cta-title {
            font-size: clamp(24px, 4vw, 32px);
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-desc {
            font-size: 15px;
            color: #94a3b8;
            max-width: 480px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        .footer-link {
            font-size: 14px;
            color: #94a3b8;
            transition: color 0.2s ease;
            display: inline-block;
            padding: 4px 0;
        }
        .footer-link:hover {
            color: #fff;
        }

        .cover-card {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--line);
            transition: all 0.25s ease;
            background: var(--night-light);
        }
        .cover-card:hover {
            border-color: rgba(230, 57, 70, 0.4);
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
        }
        .cover-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .cover-card .img-overlay {
            position: absolute;
            top: 0; left: 0; right: 0;
            background: linear-gradient(to bottom, rgba(10, 15, 26, 0.1), rgba(10, 15, 26, 0.6));
            padding: 16px;
            display: flex;
            justify-content: flex-end;
        }
        .cover-card-body {
            padding: 20px 22px 24px;
        }
        .cover-card-body .badge {
            margin-bottom: 12px;
        }
        .cover-card-title {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .cover-card-text {
            font-size: 13px;
            color: #94a3b8;
            line-height: 1.7;
        }

        .img-rounded {
            border-radius: 16px;
            border: 1px solid var(--line);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 13px;
            color: #64748b;
            margin-bottom: 16px;
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .breadcrumb .sep {
            color: #475569;
        }
        .breadcrumb .current {
            color: #cbd5e1;
        }

        .list-check {
            list-style: none;
        }
        .list-check li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            font-size: 15px;
            color: #cbd5e1;
            line-height: 1.6;
        }
        .list-check li i {
            color: var(--primary);
            margin-top: 4px;
            flex-shrink: 0;
            font-size: 14px;
        }

        .timeline {
            position: relative;
            padding-left: 28px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: linear-gradient(to bottom, rgba(230, 57, 70, 0.6), rgba(230, 57, 70, 0.1));
        }
        .timeline-item {
            position: relative;
            padding-bottom: 28px;
            padding-left: 20px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 8px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 0 4px rgba(230, 57, 70, 0.2);
        }
        .timeline-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .timeline-text {
            font-size: 14px;
            color: #94a3b8;
            line-height: 1.7;
        }

        @media (max-width: 1024px) {
            .grid-cards {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-cards-4, .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                top: 10px;
                padding: 8px 14px;
                width: calc(100% - 20px);
            }
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(13, 19, 33, 0.96);
                border-radius: 20px;
                padding: 16px;
                border: 1px solid var(--line);
                box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-link {
                width: 100%;
                text-align: center;
                padding: 12px 16px;
                border-radius: 12px;
            }
            .mobile-menu-btn {
                display: block;
            }
            .hero-section {
                padding: 130px 0 60px;
            }
            .section {
                padding: 60px 0;
            }
            .hero-stats {
                gap: 16px;
            }
            .hero-stat .num {
                font-size: 24px;
            }
        }

        @media (max-width: 640px) {
            .container-site {
                padding: 0 16px;
            }
            .grid-cards {
                grid-template-columns: 1fr;
            }
            .grid-cards-2 {
                grid-template-columns: 1fr;
            }
            .grid-cards-4, .data-grid {
                grid-template-columns: 1fr;
            }
            .steps-row {
                grid-template-columns: 1fr;
            }
            .btn-group .btn-primary, .btn-group .btn-outline {
                width: 100%;
            }
            .cta-inner {
                padding: 40px 24px;
            }
            .section-head {
                margin-bottom: 32px;
            }
            .hero-title {
                font-size: 30px;
            }
        }

        .badge-pulse {
            position: relative;
        }
        .badge-pulse::after {
            content: '';
            position: absolute;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: #34d399;
            top: -1px;
            right: -1px;
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.6); }
            70% { box-shadow: 0 0 0 6px rgba(52, 211, 153, 0); }
            100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
        }

        .focus-ring:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

        ::selection {
            background: rgba(230, 57, 70, 0.6);
            color: #fff;
        }

/* roulang page: category3 */
:root {
            --night: #0b0e13;
            --coal: #131922;
            --line: #232b36;
            --accent: #e8223b;
            --accent2: #ffb020;
            --text: #f2f5f8;
            --muted: #8b95a5;
            --radius: 16px;
            --shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: var(--night);
            color: var(--text);
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
        }
        .container-site {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input {
            font-family: inherit;
        }

        /* ===== 悬浮胶囊导航 ===== */
        .nav-shell {
            position: sticky;
            top: 14px;
            z-index: 50;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .nav-inner {
            background: rgba(11, 14, 19, 0.86);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(35, 43, 54, 0.9);
            border-radius: 999px;
            padding: 8px 12px;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 16px;
            letter-spacing: 0.02em;
            color: #fff;
            white-space: nowrap;
        }
        .brand-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 0 4px rgba(232, 34, 59, 0.18);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 7px 16px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--muted);
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-link.active {
            color: #fff;
            background: var(--accent);
            box-shadow: 0 6px 18px rgba(232, 34, 59, 0.35);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent);
            color: #fff;
            border-radius: 999px;
            padding: 8px 18px;
            font-size: 14px;
            font-weight: 700;
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .nav-cta:hover {
            background: #c8162f;
            transform: translateY(-1px);
        }

        @media (max-width: 900px) {
            .nav-inner {
                flex-wrap: wrap;
                justify-content: center;
                border-radius: 24px;
            }
            .nav-links {
                order: 3;
                width: 100%;
                justify-content: center;
                flex-wrap: wrap;
            }
            .nav-cta {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .nav-shell {
                top: 8px;
                padding: 0 12px;
            }
            .brand-logo {
                font-size: 14px;
            }
            .nav-link {
                padding: 6px 10px;
                font-size: 13px;
            }
        }

        /* ===== 通用组件 ===== */
        .dot-red {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 0 3px rgba(232, 34, 59, 0.2);
            flex-shrink: 0;
        }
        .badge-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(232, 34, 59, 0.12);
            border: 1px solid rgba(232, 34, 59, 0.35);
            color: #ffb3bd;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 999px;
            letter-spacing: 0.03em;
        }
        .tag-mini {
            display: inline-flex;
            align-items: center;
            background: rgba(255, 176, 32, 0.12);
            border: 1px solid rgba(255, 176, 32, 0.3);
            color: #ffd08a;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 999px;
        }
        .card-surface {
            background: linear-gradient(180deg, #131922 0%, #10151d 100%);
            border: 1px solid rgba(35, 43, 54, 0.85);
            border-radius: var(--radius);
            transition: all 0.3s ease;
        }
        .card-surface:hover {
            transform: translateY(-4px);
            border-color: rgba(232, 34, 59, 0.4);
            box-shadow: 0 14px 32px rgba(0, 0, 0, 0.4);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
        }
        .section-sub {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.7;
        }
        .feature-icon {
            width: 46px;
            height: 46px;
            border-radius: 14px;
            background: rgba(232, 34, 59, 0.12);
            border: 1px solid rgba(232, 34, 59, 0.25);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
            transition: all 0.25s ease;
        }
        .card-surface:hover .feature-icon {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }
        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #22c55e;
            box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.18);
            animation: pulse 2s infinite;
            flex-shrink: 0;
        }
        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.6;
                transform: scale(0.8);
            }
        }
        .step-number {
            font-size: 12px;
            font-weight: 800;
            letter-spacing: 0.08em;
            color: var(--accent2);
            font-family: monospace;
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 900;
            line-height: 1;
            color: #fff;
        }
        .stat-label {
            color: var(--muted);
            font-size: 14px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            border-radius: 999px;
            padding: 12px 26px;
            transition: all 0.25s ease;
            box-shadow: 0 8px 22px rgba(232, 34, 59, 0.3);
            font-size: 15px;
        }
        .btn-primary:hover {
            background: #c5162e;
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(232, 34, 59, 0.4);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: #fff;
            font-weight: 600;
            border-radius: 999px;
            padding: 12px 26px;
            transition: all 0.25s ease;
            font-size: 15px;
        }
        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.06);
        }
        .article-item {
            background: #131922;
            border: 1px solid rgba(35, 43, 54, 0.8);
            border-radius: var(--radius);
            padding: 16px;
            transition: all 0.25s ease;
        }
        .article-item:hover {
            border-color: rgba(255, 176, 32, 0.35);
            transform: translateY(-2px);
        }
        .article-thumb {
            border-radius: 12px;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            object-fit: cover;
        }
        .faq-item {
            background: var(--coal);
            border: 1px solid rgba(35, 43, 54, 0.8);
            border-radius: 14px;
            padding: 20px 22px;
            transition: border-color 0.25s ease;
        }
        .faq-item summary {
            cursor: pointer;
            font-weight: 700;
            color: #fff;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary i {
            transition: transform 0.3s ease;
            font-size: 14px;
            color: var(--muted);
        }
        .faq-item[open] {
            border-color: rgba(232, 34, 59, 0.3);
        }
        .faq-item[open] summary i {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-item p {
            margin-top: 14px;
            color: var(--muted);
            font-size: 14px;
            line-height: 1.8;
        }
        .footer-link {
            color: #8b95a5;
            font-size: 14px;
            transition: color 0.2s ease;
        }
        .footer-link:hover {
            color: #fff;
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 26px;
            }
            .stat-number {
                font-size: 2rem;
            }
        }
        @media (max-width: 520px) {
            .faq-item {
                padding: 16px;
            }
            .article-item {
                padding: 12px;
            }
        }