/* roulang page: index */
/* ========== 设计变量 ========== */
:root {
    --primary: #2563eb;
    --primary-dark: #1e4bb7;
    --primary-light: #eff6ff;
    --accent: #f59e0b;
    --accent-soft: #fef3c7;
    --success: #10b981;
    --bg: #f4f7fb;
    --surface: #ffffff;
    --text: #1e293b;
    --text-weak: #64748b;
    --border: #e2e8f0;
    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 22px;
    --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
    --shadow: 0 10px 28px rgba(15, 23, 42, 0.09);
    --shadow-hover: 0 18px 44px rgba(15, 23, 42, 0.15);
    --spacing: 80px;
    --section-pad: 90px 0;
    --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

/* ========== 基础 Reset ========== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    font-family: var(--font-base);
    color: var(--text);
    background: var(--bg);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s ease, background-color .25s ease, border-color .25s ease, box-shadow .25s ease, transform .25s ease; }
button, input, select, textarea { font-family: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }
p, h1, h2, h3, h4, h5 { margin: 0; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
section { scroll-margin-top: 80px; }

/* ========== 按钮 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 28px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    line-height: 1.2;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all .28s ease;
    white-space: nowrap;
}
.btn i { font-size: 14px; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 6px 18px rgba(37, 99, 235, 0.3); }
.btn-primary:hover { background: var(--primary-dark); box-shadow: 0 10px 28px rgba(37, 99, 235, 0.42); transform: translateY(-2px); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3); }
.btn-primary:focus-visible { outline: 3px solid rgba(37, 99, 235, 0.4); outline-offset: 2px; }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); box-shadow: 0 2px 6px rgba(15, 23, 42, 0.04); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); transform: translateY(-2px); }
.btn-ghost:active { transform: translateY(0); }
.btn-ghost:focus-visible { outline: 3px solid rgba(37, 99, 235, 0.3); outline-offset: 2px; }
.btn-accent { background: var(--accent); color: #fff; box-shadow: 0 6px 18px rgba(245, 158, 11, 0.35); }
.btn-accent:hover { background: #db8a06; transform: translateY(-2px); box-shadow: 0 10px 26px rgba(245, 158, 11, 0.4); }
.btn-accent:focus-visible { outline: 3px solid rgba(245, 158, 11, 0.4); outline-offset: 2px; }
.btn-sm { padding: 9px 20px; font-size: 14px; }
.btn-block { width: 100%; }

/* ========== 徽章 / 标签 ========== */
.badge { display: inline-flex; align-items: center; gap: 5px; padding: 4px 14px; border-radius: 999px; font-size: 12px; font-weight: 600; line-height: 1.5; }
.badge-primary { background: var(--primary); color: #fff; }
.badge-accent { background: var(--accent-soft); color: #b45309; }
.badge-success { background: #d1fae5; color: #065f46; }
.badge-soft { background: #eef2ff; color: #4338ca; }
.tag { display: inline-flex; align-items: center; padding: 6px 16px; border-radius: 999px; font-size: 13px; font-weight: 500; background: var(--surface); border: 1px solid var(--border); color: var(--text-weak); transition: all .25s ease; }
.tag i { font-size: 12px; margin-right: 5px; color: var(--primary); }
.tag:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.tag.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ========== 头部导航 ========== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    box-shadow: 0 4px 18px rgba(15, 23, 42, 0.04);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 20px;
}
.logo { display: flex; align-items: baseline; font-size: 22px; font-weight: 800; letter-spacing: -0.3px; color: var(--text); line-height: 1; flex-shrink: 0; }
.logo .logo-sub { color: var(--primary); font-weight: 800; }
.logo:hover { opacity: 0.88; }
.logo em { font-style: normal; color: var(--primary); }
.logo-badge { display: inline-flex; margin-left: 8px; font-size: 10px; font-weight: 700; background: var(--accent); color: #fff; padding: 2px 8px; border-radius: 999px; letter-spacing: 0.5px; }
.main-nav { display: flex; align-items: center; }
.nav-list { display: flex; align-items: center; gap: 6px; }
.nav-list > li > a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 18px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-weak);
    transition: all .25s ease;
}
.nav-list > li > a i { font-size: 13px; opacity: .75; }
.nav-list > li > a:hover { color: var(--primary); background: var(--primary-light); }
.nav-list > li > a.active { color: var(--primary); background: var(--primary-light); font-weight: 600; }
.nav-list > li > a:focus-visible { outline: 3px solid rgba(37, 99, 235, 0.3); outline-offset: 2px; }
.header-cta { flex-shrink: 0; }
.menu-toggle { display: none; }
.menu-toggle-label { display: none; cursor: pointer; width: 42px; height: 42px; border-radius: 10px; border: 1px solid var(--border); background: var(--surface); align-items: center; justify-content: center; color: var(--text); font-size: 18px; transition: all .2s ease; }
.menu-toggle-label:hover { border-color: var(--primary); color: var(--primary); }

/* ========== Hero ========== */
.hero {
    position: relative;
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 130px 0 120px;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(105deg, rgba(15, 23, 42, 0.82) 0%, rgba(15, 23, 42, 0.55) 55%, rgba(37, 99, 235, 0.25) 100%);
}
.hero-content { position: relative; z-index: 2; max-width: 680px; color: #fff; }
.hero-tag { display: inline-flex; align-items: center; gap: 8px; background: rgba(255, 255, 255, 0.16); border: 1px solid rgba(255, 255, 255, 0.22); backdrop-filter: blur(6px); padding: 8px 20px; border-radius: 999px; font-size: 14px; font-weight: 600; letter-spacing: 0.3px; color: #fff; }
.hero-tag i { color: #a7f3d0; }
.hero h1 { margin-top: 24px; font-size: clamp(36px, 5vw, 62px); font-weight: 900; line-height: 1.16; letter-spacing: -1.5px; }
.hero h1 span { color: #93c5fd; }
.hero-lead { margin-top: 18px; font-size: 17px; line-height: 1.8; color: rgba(255, 255, 255, 0.85); max-width: 540px; }
.hero-buttons { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.hero-actions {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-top: 28px;
    flex-wrap: wrap;
}
.hero-avatars { display: flex; align-items: center; }
.avatar { width: 38px; height: 38px; border-radius: 50%; border: 2px solid #fff; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; color: #fff; margin-right: -8px; }
.avatar-more { background: rgba(255, 255, 255, 0.18); font-size: 12px; font-weight: 600; color: #fff; }
.hero-info-text { font-size: 13px; color: rgba(255, 255, 255, 0.75); }
.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, auto);
    gap: 30px;
    margin-top: 52px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.18);
    max-width: 520px;
}
.hero-stat { display: flex; flex-direction: column; }
.hero-stat strong { font-size: 26px; font-weight: 800; color: #fff; letter-spacing: -0.5px; }
.hero-stat span { font-size: 13px; color: rgba(255, 255, 255, 0.7); margin-top: 2px; }

/* ========== 通用 Section ========== */
.section { padding: var(--section-pad); }
.section-alt { background: var(--surface); }
.section-head { max-width: 720px; margin: 0 auto 48px; text-align: center; }
.section-head .eyebrow { display: inline-flex; align-items: center; gap: 6px; color: var(--primary); background: var(--primary-light); padding: 6px 16px; border-radius: 999px; font-size: 13px; font-weight: 700; letter-spacing: 0.4px; }
.section-head h2 { margin-top: 16px; font-size: clamp(28px, 3.6vw, 42px); font-weight: 800; letter-spacing: -0.8px; line-height: 1.25; }
.section-head p { margin-top: 12px; color: var(--text-weak); font-size: 16px; line-height: 1.7; }

/* ========== 话题标签条 ========== */
.topic-strip {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 20px 0;
}
.topic-strip-inner { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.topic-strip-label { font-size: 14px; font-weight: 700; color: var(--text); display: inline-flex; align-items: center; gap: 6px; }
.topic-strip-label i { color: var(--accent); }

/* ========== 平台简介 ========== */
.about-grid { display: flex; align-items: center; gap: 60px; }
.about-media { flex: 1; position: relative; }
.about-media img { border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.about-media::after { content: '乐鱼网页版'; position: absolute; right: -14px; bottom: -14px; background: var(--primary); color: #fff; font-weight: 700; font-size: 14px; padding: 10px 22px; border-radius: 999px; box-shadow: 0 8px 22px rgba(37, 99, 235, 0.35); }
.about-content { flex: 1; }
.about-content .eyebrow { display: inline-flex; align-items: center; gap: 6px; color: var(--primary); background: var(--primary-light); padding: 6px 16px; border-radius: 999px; font-size: 13px; font-weight: 700; }
.about-content h2 { margin-top: 16px; font-size: clamp(26px, 3vw, 36px); font-weight: 800; line-height: 1.3; letter-spacing: -0.6px; }
.about-content > p { margin-top: 14px; color: var(--text-weak); line-height: 1.8; }
.about-list { margin-top: 24px; display: grid; gap: 14px; }
.about-list li { display: flex; gap: 12px; align-items: flex-start; }
.about-list .check-icon { width: 26px; height: 26px; border-radius: 50%; background: var(--success); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 12px; flex-shrink: 0; margin-top: 2px; }
.about-list li div strong { display: block; font-size: 15px; font-weight: 600; color: var(--text); }
.about-list li div span { font-size: 14px; color: var(--text-weak); line-height: 1.6; }

/* ========== 分类入口 ========== */
.category-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.category-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all .3s ease;
    display: flex;
    flex-direction: column;
}
.category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.category-card img { width: 100%; height: 220px; object-fit: cover; transition: transform .5s ease; }
.category-card:hover img { transform: scale(1.04); }
.category-card-body { padding: 26px 28px 30px; display: flex; flex-direction: column; flex: 1; }
.category-card-body h3 { font-size: 20px; font-weight: 700; display: flex; align-items: center; gap: 10px; }
.category-card-body h3 i { color: var(--primary); font-size: 18px; }
.category-card-body p { margin-top: 10px; color: var(--text-weak); font-size: 14.5px; line-height: 1.75; }
.category-card-footer { margin-top: 22px; display: flex; align-items: center; justify-content: space-between; }
.category-card-footer .btn { padding: 8px 18px; font-size: 13px; }
.card-link { color: var(--primary); font-weight: 600; font-size: 14px; display: inline-flex; align-items: center; gap: 6px; }
.card-link i { transition: transform .25s ease; }
.card-link:hover i { transform: translateX(4px); }

/* ========== 核心功能 ========== */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.feature-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px 30px;
    text-align: center;
    transition: all .3s ease;
    box-shadow: var(--shadow-sm);
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: rgba(37, 99, 235, 0.3); }
.feature-icon { width: 72px; height: 72px; margin: 0 auto 20px; border-radius: 20px; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 28px; transition: all .3s ease; }
.feature-card:hover .feature-icon { background: var(--primary); color: #fff; border-radius: 50%; transform: rotate(-6deg) scale(1.05); }
.feature-card h3 { font-size: 18px; font-weight: 700; color: var(--text); }
.feature-card p { margin-top: 10px; font-size: 14px; color: var(--text-weak); line-height: 1.7; }

/* ========== 最新信息 ========== */
.news-section { background: var(--bg); }
.news-layout { display: grid; grid-template-columns: 1fr; gap: 20px; max-width: 980px; margin: 0 auto; }
.news-card-featured {
    display: flex;
    align-items: stretch;
    gap: 24px;
    background: linear-gradient(135deg, var(--primary) 0%, #1d4ed8 100%);
    border-radius: var(--radius-lg);
    padding: 34px 36px;
    color: #fff;
    box-shadow: 0 14px 36px rgba(30, 64, 175, 0.28);
    transition: all .3s ease;
}
.news-card-featured:hover { transform: translateY(-4px); box-shadow: 0 20px 50px rgba(30, 64, 175, 0.36); }
.news-featured-body { flex: 1; }
.news-featured-body .badge { background: var(--accent); color: #fff; margin-bottom: 14px; }
.news-featured-body h3 { font-size: 24px; font-weight: 700; line-height: 1.4; }
.news-featured-body p { margin-top: 10px; font-size: 15px; line-height: 1.7; color: rgba(255, 255, 255, 0.85); }
.news-meta { margin-top: 16px; display: flex; gap: 18px; font-size: 13px; color: rgba(255, 255, 255, 0.8); }
.news-meta i { margin-right: 4px; }
.news-arrow { display: flex; align-items: center; justify-content: center; width: 52px; font-size: 20px; color: #fff; flex-shrink: 0; }
.news-card {
    display: flex;
    align-items: center;
    gap: 18px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 24px;
    transition: all .28s ease;
}
.news-card:hover { border-color: rgba(37, 99, 235, 0.4); box-shadow: var(--shadow); transform: translateY(-2px); }
.news-index { font-size: 22px; font-weight: 800; color: var(--border); min-width: 34px; letter-spacing: -1px; }
.news-card:hover .news-index { color: var(--primary); }
.news-card-body { flex: 1; min-width: 0; }
.news-title { display: block; font-size: 16px; font-weight: 600; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.news-desc { display: block; margin-top: 4px; font-size: 13.5px; color: var(--text-weak); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.news-time { font-size: 13px; color: var(--text-weak); white-space: nowrap; flex-shrink: 0; }
.empty-state {
    text-align: center;
    padding: 60px 20px;
    background: var(--surface);
    border-radius: var(--radius-lg);
    border: 1px dashed var(--border);
    color: var(--text-weak);
}
.empty-state i { font-size: 42px; opacity: 0.35; display: block; margin-bottom: 14px; }
.empty-state p { font-size: 15px; }

/* ========== 数据 / 流程 ========== */
.stats-banner {
    position: relative;
    background-image: url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    border-radius: var(--radius-lg);
    overflow: hidden;
    padding: 60px 50px;
    color: #fff;
}
.stats-banner::before { content: ''; position: absolute; inset: 0; background: linear-gradient(120deg, rgba(15, 23, 42, 0.88), rgba(30, 64, 175, 0.72)); }
.stats-banner-inner { position: relative; z-index: 2; }
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; }
.stat-item { text-align: center; padding: 10px; }
.stat-item strong { display: block; font-size: 40px; font-weight: 800; letter-spacing: -1px; }
.stat-item span { display: block; margin-top: 6px; font-size: 14px; color: rgba(255, 255, 255, 0.8); }
.stat-divider { width: 1px; background: rgba(255, 255, 255, 0.16); }
.process-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 64px; }
.process-step { text-align: center; padding: 36px 24px; background: var(--surface); border-radius: var(--radius); border: 1px solid var(--border); position: relative; transition: all .3s ease; }
.process-step:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
.step-number { width: 58px; height: 58px; margin: 0 auto 18px; background: var(--primary-light); color: var(--primary); font-size: 22px; font-weight: 800; border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.process-step:hover .step-number { background: var(--primary); color: #fff; }
.process-step h3 { font-size: 17px; font-weight: 700; }
.process-step p { margin-top: 8px; font-size: 14px; color: var(--text-weak); line-height: 1.7; }

/* ========== FAQ ========== */
.faq-wrap { max-width: 820px; margin: 0 auto; display: grid; gap: 14px; }
.faq-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px 28px;
    transition: all .25s ease;
}
.faq-item:hover { border-color: rgba(37, 99, 235, 0.35); box-shadow: var(--shadow-sm); }
.faq-item summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; font-size: 16px; font-weight: 600; color: var(--text); outline: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '\f078'; font-family: 'Font Awesome 6 Free'; font-weight: 900; font-size: 13px; color: var(--primary); transition: transform .3s ease; opacity: .7; }
.faq-item[open] summary::after { transform: rotate(180deg); }
.faq-item[open] p { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--border); font-size: 14.5px; line-height: 1.8; color: var(--text-weak); }

/* ========== CTA ========== */
.cta-section { position: relative; overflow: hidden; }
.cta-box {
    background: linear-gradient(120deg, var(--primary) 0%, #3b82f6 100%);
    border-radius: var(--radius-lg);
    padding: 60px 56px;
    text-align: center;
    color: #fff;
    position: relative;
    overflow: hidden;
}
.cta-box::before { content: ''; position: absolute; width: 420px; height: 420px; border-radius: 50%; background: rgba(255, 255, 255, 0.08); top: -140px; left: -100px; }
.cta-box::after { content: ''; position: absolute; width: 300px; height: 300px; border-radius: 50%; background: rgba(255, 255, 255, 0.06); right: -80px; bottom: -120px; }
.cta-box h2 { font-size: clamp(26px, 3vw, 36px); font-weight: 800; position: relative; z-index: 2; }
.cta-box p { margin-top: 14px; color: rgba(255, 255, 255, 0.85); font-size: 15px; max-width: 520px; margin-left: auto; margin-right: auto; position: relative; z-index: 2; }
.cta-box .btn { margin-top: 28px; position: relative; z-index: 2; background: #fff; color: var(--primary); border-color: #fff; }
.cta-box .btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ========== 页脚 ========== */
.site-footer { background: #0f172a; color: #94a3b8; padding: 68px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 50px; padding-bottom: 44px; }
.footer-brand .logo { color: #fff; font-size: 20px; }
.footer-brand .logo .logo-sub { color: #60a5fa; }
.footer-brand p { margin-top: 16px; font-size: 14px; line-height: 1.8; color: #94a3b8; max-width: 360px; }
.footer-brand .avatar-group { margin-top: 20px; }
.footer-col h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 20px; letter-spacing: 0.3px; }
.footer-col ul { display: grid; gap: 10px; }
.footer-col ul li a { font-size: 14px; color: #94a3b8; transition: all .25s ease; }
.footer-col ul li a:hover { color: #60a5fa; padding-left: 5px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.08); padding: 22px 0; text-align: center; font-size: 13px; color: #64748b; }
.footer-bottom a { color: #94a3b8; }
.footer-bottom a:hover { color: #60a5fa; }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    :root { --section-pad: 70px 0; }
    .about-grid { gap: 40px; }
    .about-grid { flex-direction: column; }
    .about-media { width: 100%; }
    .stats-banner { padding: 48px 34px; }
}

@media (max-width: 768px) {
    .header-inner { height: 64px; }
    .menu-toggle-label { display: flex; }
    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        border-bottom: 1px solid var(--border);
        box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
        padding: 16px 20px;
        display: none;
        flex-direction: column;
        align-items: stretch;
    }
    .menu-toggle:checked ~ .main-nav { display: flex; }
    .nav-list { flex-direction: column; width: 100%; align-items: stretch; gap: 4px; }
    .nav-list > li > a { width: 100%; justify-content: flex-start; border-radius: 10px; padding: 13px 16px; }
    .header-cta { display: none; }
    .hero { padding: 90px 0 80px; }
    .hero h1 { font-size: 34px; }
    .hero-stats { grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .hero-stat strong { font-size: 22px; }
    .category-grid { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr; gap: 24px; }
    .process-grid { grid-template-columns: 1fr; gap: 20px; margin-top: 40px; }
    .footer-grid { grid-template-columns: 1fr; gap: 36px; }
    .news-card { flex-wrap: wrap; }
    .news-time { width: 100%; padding-left: 52px; }
    .news-card-featured { flex-direction: column; padding: 26px; }
    .news-arrow { display: none; }
    :root { --section-pad: 60px 0; }
}

@media (max-width: 520px) {
    .container { padding: 0 16px; }
    .hero { padding: 70px 0 64px; }
    .hero h1 { font-size: 28px; }
    .hero-buttons { flex-direction: column; align-items: stretch; }
    .hero-buttons .btn { width: 100%; }
    .hero-actions { flex-direction: column; align-items: flex-start; gap: 12px; }
    .hero-stats { grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
    .hero-stat strong { font-size: 20px; }
    .section-head h2 { font-size: 26px; }
    .about-media::after { font-size: 12px; padding: 8px 16px; right: -6px; bottom: -8px; }
    .category-card img { height: 180px; }
    .btn { padding: 11px 22px; font-size: 14px; }
    .stats-banner { padding: 40px 24px; }
    .stat-item strong { font-size: 32px; }
    .faq-item { padding: 18px 20px; }
    .cta-box { padding: 40px 24px; }
}

/* roulang page: category1 */
:root{
  --primary:#2563eb;
  --primary-dark:#1e40af;
  --accent:#10b981;
  --ink:#0f172a;
  --text:#1e293b;
  --muted:#64748b;
  --bg:#f8fafc;
  --surface:#ffffff;
  --line:#e2e8f0;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 12px 32px rgba(15,23,42,.08);
  --shadow-lg:0 22px 52px rgba(15,23,42,.14);
  --font-sans:"PingFang SC","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-sans);
  color:var(--text);
  background:var(--bg);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{text-decoration:none;color:inherit;transition:color .25s ease;}
ul,ol{list-style:none;}
h1,h2,h3,h4,h5,h6{
  font-family:var(--font-sans);
  color:var(--ink);
  line-height:1.3;
  font-weight:700;
}
p{margin:0;}
button{font-family:inherit;border:none;background:none;cursor:pointer;}
input{font-family:inherit;}
:focus-visible{outline:3px solid rgba(37,99,235,.35);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ===== Header / Nav ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(226,232,240,.8);
  box-shadow:0 1px 18px rgba(15,23,42,.05);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  gap:20px;
}
.logo{
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  white-space:nowrap;
}
.logo em{
  font-style:normal;
  font-size:22px;
  font-weight:800;
  color:var(--primary);
  letter-spacing:.5px;
}
.logo .logo-sub{
  font-size:13px;
  font-weight:600;
  color:var(--muted);
  background:#eff6ff;
  border:1px solid #dbeafe;
  padding:2px 10px;
  border-radius:999px;
}
.main-nav .nav-list{
  display:flex;
  align-items:center;
  gap:6px;
}
.main-nav .nav-list a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 18px;
  border-radius:999px;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  transition:all .25s ease;
}
.main-nav .nav-list a i{
  font-size:14px;
  color:var(--muted);
  transition:color .25s ease;
}
.main-nav .nav-list a:hover{
  background:#f1f5f9;
  color:var(--primary-dark);
}
.main-nav .nav-list a:hover i{
  color:var(--primary);
}
.main-nav .nav-list a.active{
  background:var(--primary);
  color:#fff;
  box-shadow:0 8px 20px rgba(37,99,235,.28);
}
.main-nav .nav-list a.active i{
  color:#fff;
}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  border-radius:12px;
  background:#f1f5f9;
  color:var(--ink);
  font-size:18px;
  transition:background .25s ease;
}
.nav-toggle:hover{background:#e2e8f0;}

/* ===== Page Banner ===== */
.page-banner{
  position:relative;
  padding:130px 0 110px;
  background:
    linear-gradient(135deg,rgba(2,6,23,.88),rgba(30,64,175,.76)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#fff;
  text-align:center;
  overflow:hidden;
}
.page-banner::after{
  content:"";
  position:absolute;
  right:-120px;
  top:10%;
  width:360px;
  height:360px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(59,130,246,.28),transparent 70%);
  pointer-events:none;
}
.breadcrumb{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:rgba(255,255,255,.72);
  margin-bottom:22px;
}
.breadcrumb a{color:rgba(255,255,255,.88);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb i{font-size:12px;}
.page-banner h1{
  font-size:44px;
  color:#fff;
  font-weight:800;
  letter-spacing:1px;
  margin-bottom:16px;
}
.page-banner .banner-sub{
  max-width:680px;
  margin:0 auto 30px;
  font-size:17px;
  line-height:1.8;
  color:rgba(255,255,255,.82);
}
.banner-actions{
  display:flex;
  gap:14px;
  justify-content:center;
  flex-wrap:wrap;
}
.banner-note{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:28px;
  padding:10px 20px;
  border-radius:999px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.22);
  font-size:14px;
  color:rgba(255,255,255,.9);
  backdrop-filter:blur(6px);
}
.banner-note i{color:#fbbf24;}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 30px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  border:1.5px solid transparent;
  transition:all .28s ease;
}
.btn-primary{
  background:var(--primary);
  color:#fff;
  box-shadow:0 10px 24px rgba(37,99,235,.3);
}
.btn-primary:hover{
  background:var(--primary-dark);
  transform:translateY(-2px);
  box-shadow:0 14px 30px rgba(37,99,235,.36);
}
.btn-outline{
  border-color:rgba(255,255,255,.65);
  color:#fff;
  background:transparent;
}
.btn-outline:hover{
  background:#fff;
  color:var(--primary-dark);
  transform:translateY(-2px);
}
.btn-light{
  background:#fff;
  color:var(--primary-dark);
  box-shadow:0 10px 24px rgba(0,0,0,.14);
}
.btn-light:hover{
  transform:translateY(-2px);
  box-shadow:0 14px 30px rgba(0,0,0,.2);
}
.btn-outline-light{
  border:1.5px solid rgba(255,255,255,.7);
  color:#fff;
}
.btn-outline-light:hover{
  background:rgba(255,255,255,.12);
  transform:translateY(-2px);
}

/* ===== Section ===== */
.section{
  padding:92px 0;
}
.section-alt{
  background:var(--surface);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section-head{
  text-align:center;
  max-width:720px;
  margin:0 auto 58px;
}
.section-eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:2px;
  color:var(--primary);
  background:#eff6ff;
  border:1px solid #dbeafe;
  padding:6px 18px;
  border-radius:999px;
  margin-bottom:16px;
}
.section-head h2{
  font-size:34px;
  margin-bottom:14px;
}
.section-head p{
  color:var(--muted);
  font-size:16px;
  line-height:1.85;
}

/* ===== Info Bar ===== */
.info-bar{
  display:flex;
  align-items:center;
  gap:14px;
  background:#fffbeb;
  border:1px solid #fde68a;
  border-radius:var(--radius);
  padding:16px 22px;
  color:#92400e;
  font-size:15px;
  margin-top:-52px;
  position:relative;
  z-index:5;
  box-shadow:var(--shadow);
}
.info-bar i{
  font-size:20px;
  color:#f59e0b;
  flex-shrink:0;
}
.info-bar strong{font-weight:700;}

/* ===== Tag Pills ===== */
.tag-strip{
  background:var(--surface);
  border-bottom:1px solid var(--line);
  padding:22px 0;
}
.tag-pills{
  display:flex;
  justify-content:center;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 20px;
  border-radius:999px;
  background:#f1f5f9;
  border:1px solid var(--line);
  font-size:14px;
  font-weight:600;
  color:var(--text);
  transition:all .25s ease;
}
.pill i{font-size:13px;color:var(--muted);}
.pill:hover{
  background:var(--primary);
  color:#fff;
  border-color:var(--primary);
  transform:translateY(-2px);
  box-shadow:0 8px 18px rgba(37,99,235,.22);
}
.pill:hover i{color:#fff;}

/* ===== Steps ===== */
.steps-grid{
  margin-top:10px;
}
.step-item{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:34px 28px;
  margin-bottom:24px;
  transition:all .3s ease;
  overflow:hidden;
}
.step-item::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  bottom:0;
  width:4px;
  background:linear-gradient(180deg,var(--primary),var(--accent));
  opacity:0;
  transition:opacity .3s ease;
}
.step-item:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(37,99,235,.25);
}
.step-item:hover::before{opacity:1;}
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:50px;
  height:50px;
  border-radius:14px;
  background:var(--primary);
  color:#fff;
  font-size:20px;
  font-weight:800;
  margin-bottom:20px;
  box-shadow:0 10px 22px rgba(37,99,235,.3);
}
.step-item h3{
  font-size:19px;
  margin-bottom:10px;
}
.step-item p{
  font-size:14.5px;
  color:var(--muted);
  line-height:1.85;
}

/* ===== Stats Band ===== */
.stats-band{
  background:linear-gradient(135deg,#0f172a,#1e40af);
  padding:64px 0;
  color:#fff;
}
.stat-cell{
  text-align:center;
  padding:16px 10px;
}
.stat-cell strong{
  display:block;
  font-size:40px;
  font-weight:800;
  color:#fff;
  line-height:1.2;
}
.stat-cell span{
  display:block;
  margin-top:6px;
  font-size:14px;
  color:rgba(255,255,255,.72);
}

/* ===== Guide Cards ===== */
.card-cell{
  margin-bottom:24px;
}
.guide-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  height:100%;
  display:flex;
  flex-direction:column;
  transition:all .3s ease;
}
.guide-card:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadow-lg);
}
.card-media{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/10;
}
.card-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.guide-card:hover .card-media img{
  transform:scale(1.06);
}
.card-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 55%,rgba(15,23,42,.35));
}
.card-media .badge{
  position:absolute;
  left:16px;
  top:16px;
  z-index:2;
}
.card-body{
  padding:26px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.card-body h3{
  font-size:19px;
  margin-bottom:10px;
}
.card-body p{
  font-size:14.5px;
  color:var(--muted);
  line-height:1.85;
  flex:1;
}
.card-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-top:18px;
  padding-top:16px;
  border-top:1px dashed var(--line);
}
.card-link{
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.card-link i{
  transition:transform .25s ease;
}
.guide-card:hover .card-link i{
  transform:translateX(4px);
}
.card-meta{
  font-size:13px;
  color:var(--muted);
}

/* ===== Badges ===== */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  font-weight:700;
  padding:4px 14px;
  border-radius:999px;
  background:var(--primary);
  color:#fff;
}
.badge-green{
  background:#d1fae5;
  color:#065f46;
}
.badge-blue{
  background:#eff6ff;
  color:#1d4ed8;
  border:1px solid #dbeafe;
}
.badge-amber{
  background:#fffbeb;
  color:#92400e;
  border:1px solid #fde68a;
}

/* ===== Browser Panel ===== */
.browser-panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:calc(var(--radius) + 4px);
  padding:48px;
  box-shadow:var(--shadow);
}
.browser-panel-head{
  margin-bottom:34px;
}
.browser-panel-head h3{
  font-size:24px;
  margin-bottom:6px;
}
.browser-panel-head p{
  color:var(--muted);
  font-size:15px;
}
.browser-list li{
  display:flex;
  align-items:center;
  gap:22px;
  padding:22px 8px;
  border-bottom:1px solid var(--line);
  transition:background .25s ease;
}
.browser-list li:last-child{border-bottom:none;}
.browser-list li:hover{background:#f8fafc;}
.browser-icon{
  flex-shrink:0;
  width:56px;
  height:56px;
  border-radius:16px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:26px;
  background:#f1f5f9;
  color:var(--primary);
}
.browser-info{
  flex:1;
  min-width:0;
}
.browser-info h4{
  font-size:16.5px;
  margin-bottom:4px;
}
.browser-info p{
  font-size:14px;
  color:var(--muted);
  line-height:1.75;
}
.browser-info .badge{
  margin-top:8px;
  font-size:12px;
}

/* ===== FAQ ===== */
.faq-wrap{
  max-width:860px;
}
.faq-accordion{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.faq-accordion .accordion-item{
  border-bottom:1px solid var(--line);
}
.faq-accordion .accordion-item:last-child{
  border-bottom:none;
}
.faq-accordion .accordion-title{
  display:flex;
  align-items:center;
  gap:14px;
  padding:22px 28px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  background:#fff;
  transition:background .25s ease,color .25s ease;
}
.faq-accordion .accordion-title::before{
  content:"\f059";
  font-family:"Font Awesome 6 Free";
  font-weight:400;
  color:var(--primary);
  font-size:20px;
  flex-shrink:0;
}
.faq-accordion .accordion-title:hover{
  background:#f8fafc;
  color:var(--primary-dark);
}
.faq-accordion .accordion-title::after{
  content:"\f078";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  color:var(--muted);
  font-size:14px;
  margin-left:auto;
  transition:transform .3s ease;
}
.faq-accordion .accordion-item.is-active > .accordion-title::after{
  transform:rotate(180deg);
}
.faq-accordion .accordion-content{
  padding:0 28px 24px 62px;
  color:var(--muted);
  font-size:15px;
  line-height:1.9;
  background:#fbfcfe;
}

/* ===== CTA ===== */
.cta-band{
  position:relative;
  padding:96px 0;
  background:
    linear-gradient(120deg,rgba(15,23,42,.92),rgba(30,64,175,.85)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  text-align:center;
  color:#fff;
}
.cta-inner{
  max-width:760px;
  margin:0 auto;
}
.cta-inner h2{
  font-size:34px;
  color:#fff;
  margin-bottom:16px;
}
.cta-inner p{
  font-size:16px;
  color:rgba(255,255,255,.82);
  margin-bottom:34px;
  line-height:1.9;
}
.cta-actions{
  display:flex;
  gap:16px;
  justify-content:center;
  flex-wrap:wrap;
}

/* ===== Footer ===== */
.site-footer{
  background:#0f172a;
  color:#cbd5e1;
  padding:70px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1.1fr;
  gap:46px;
  padding-bottom:50px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  line-height:1.9;
  color:#94a3b8;
  max-width:360px;
}
.site-footer .logo em{
  color:#fff;
}
.site-footer .logo .logo-sub{
  background:rgba(255,255,255,.08);
  border-color:rgba(255,255,255,.14);
  color:#e2e8f0;
}
.hero-avatars{
  display:flex;
  align-items:center;
  margin-top:20px;
}
.avatar{
  width:38px;
  height:38px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:14px;
  font-weight:700;
  border:2px solid #0f172a;
  margin-right:-10px;
}
.avatar-more{
  background:#334155;
  font-size:12px;
}
.footer-col h4{
  font-size:16px;
  color:#fff;
  margin-bottom:20px;
  position:relative;
  padding-bottom:12px;
}
.footer-col h4::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:32px;
  height:3px;
  border-radius:2px;
  background:var(--primary);
}
.footer-col ul li{
  margin-bottom:12px;
}
.footer-col ul a{
  font-size:14px;
  color:#94a3b8;
  transition:color .25s ease,padding-left .25s ease;
}
.footer-col ul a:hover{
  color:#fff;
  padding-left:6px;
}
.footer-bottom{
  padding:26px 0;
  text-align:center;
  font-size:13px;
  color:#64748b;
}
.footer-bottom a{
  color:#94a3b8;
}
.footer-bottom a:hover{
  color:#fff;
}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .footer-grid{
    grid-template-columns:1fr 1fr;
  }
  .footer-brand{
    grid-column:1 / -1;
  }
  .page-banner h1{
    font-size:38px;
  }
}
@media (max-width:768px){
  .site-header{
    position:sticky;
  }
  .nav-toggle{
    display:inline-flex;
  }
  .main-nav{
    position:absolute;
    top:72px;
    left:0;
    right:0;
    background:#fff;
    border-bottom:1px solid var(--line);
    box-shadow:0 24px 40px rgba(15,23,42,.1);
    padding:12px 20px 20px;
    display:none;
  }
  .site-header.nav-open .main-nav{
    display:block;
  }
  .main-nav .nav-list{
    flex-direction:column;
    gap:6px;
  }
  .main-nav .nav-list a{
    width:100%;
    justify-content:flex-start;
    border-radius:12px;
  }
  .page-banner{
    padding:100px 0 90px;
  }
  .page-banner h1{
    font-size:32px;
  }
  .section-head h2{
    font-size:28px;
  }
  .browser-panel{
    padding:28px 22px;
  }
  .browser-list li{
    flex-wrap:wrap;
  }
  .browser-icon{
    width:48px;
    height:48px;
    font-size:22px;
  }
  .info-bar{
    align-items:flex-start;
    flex-direction:row;
  }
  .cta-inner h2{
    font-size:28px;
  }
  .tag-strip{
    overflow-x:auto;
  }
  .tag-pills{
    flex-wrap:nowrap;
    justify-content:flex-start;
    padding-bottom:4px;
  }
  .pill{
    white-space:nowrap;
  }
}
@media (max-width:520px){
  .container{
    padding:0 18px;
  }
  .logo em{
    font-size:19px;
  }
  .logo .logo-sub{
    font-size:12px;
  }
  .page-banner h1{
    font-size:26px;
  }
  .banner-sub{
    font-size:15px;
  }
  .section{
    padding:68px 0;
  }
  .section-head{
    margin-bottom:40px;
  }
  .section-head p{
    font-size:14.5px;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:34px;
  }
  .faq-accordion .accordion-title{
    padding:18px 18px;
    font-size:15px;
  }
  .faq-accordion .accordion-content{
    padding:0 18px 20px 46px;
  }
  .stat-cell strong{
    font-size:30px;
  }
}

/* roulang page: category2 */
:root {
  --primary: #0b5dd6;
  --primary-dark: #083f8f;
  --primary-light: #e8f0fe;
  --secondary: #10b981;
  --secondary-dark: #0a8f5e;
  --bg: #f4f7fb;
  --surface: #ffffff;
  --text: #16233a;
  --text-weak: #66758c;
  --border: #e1e8f0;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-card: 0 12px 34px rgba(21, 45, 90, 0.08);
  --shadow-hover: 0 18px 44px rgba(11, 93, 214, 0.14);
  --transition: all 0.25s ease;
  --header-height: 72px;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-md)}
a{color:inherit;text-decoration:none;transition:var(--transition)}
a:hover{color:var(--primary)}
ul{list-style:none}
i{font-style:normal}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;font-size:15px;line-height:1;padding:14px 30px;border-radius:999px;border:0;cursor:pointer;transition:var(--transition);white-space:nowrap}
.btn i{font-size:15px}
.btn-primary{background:linear-gradient(135deg,var(--primary),#2a7bf2);color:#fff;box-shadow:0 8px 22px rgba(11,93,214,0.25)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(11,93,214,0.32);color:#fff}
.btn-secondary{background:linear-gradient(135deg,var(--secondary),#35d0a0);color:#fff;box-shadow:0 8px 22px rgba(16,185,129,0.25)}
.btn-secondary:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(16,185,129,0.32);color:#fff}
.btn-outline{background:transparent;color:var(--primary);border:2px solid rgba(11,93,214,0.35);box-shadow:none}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark);border-color:var(--primary);transform:translateY(-2px)}
.btn-white{background:#fff;color:var(--primary-dark);box-shadow:0 10px 24px rgba(6,30,70,0.18)}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(6,30,70,0.24);color:var(--primary)}
.section{padding:80px 0}
.section-head{max-width:680px;margin:0 auto 48px;text-align:center}
.section-tag{display:inline-flex;align-items:center;gap:6px;background:var(--primary-light);color:var(--primary);font-size:13px;font-weight:600;padding:7px 18px;border-radius:999px;margin-bottom:16px;letter-spacing:1px}
.section-head h2{font-size:34px;font-weight:700;color:var(--text);letter-spacing:-0.5px;line-height:1.3;margin-bottom:10px}
.section-head p{font-size:16px;color:var(--text-weak);margin-bottom:0}
@media(max-width:768px){.section{padding:56px 0}.section-head h2{font-size:27px}}
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,0.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid rgba(225,232,240,0.8);box-shadow:0 4px 18px rgba(21,45,90,0.04)}
.site-header .container{height:var(--header-height);display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{display:inline-flex;align-items:baseline;gap:6px;font-size:24px;font-weight:800;letter-spacing:-0.5px}
.logo em{font-style:normal;color:var(--primary)}
.logo .logo-sub{font-size:16px;font-weight:500;color:var(--text-weak)}
.main-nav .nav-list{display:flex;align-items:center;gap:6px}
.main-nav .nav-list a{display:inline-flex;align-items:center;gap:7px;padding:10px 18px;border-radius:12px;font-size:14.5px;font-weight:500;color:var(--text);transition:var(--transition)}
.main-nav .nav-list a i{font-size:14px;opacity:0.8}
.main-nav .nav-list a:hover{background:var(--primary-light);color:var(--primary-dark)}
.main-nav .nav-list a.active{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(11,93,214,0.28)}
.header-cta{margin-left:10px}
.header-toggle{display:none;background:none;border:0;font-size:24px;color:var(--text);cursor:pointer;padding:6px;border-radius:8px}
.header-toggle:hover{background:var(--bg)}
@media(max-width:900px){
  .header-toggle{display:block}
  .main-nav{position:absolute;top:var(--header-height);left:0;right:0;background:#fff;border-bottom:1px solid var(--border);box-shadow:0 20px 40px rgba(21,45,90,0.08);padding:16px 24px;display:none;max-height:calc(100vh - 80px);overflow-y:auto}
  .main-nav.open{display:block}
  .main-nav .nav-list{flex-direction:column;align-items:stretch;gap:4px}
  .main-nav .nav-list a{justify-content:flex-start;padding:14px 18px}
  .header-cta{display:none}
}
.security-hero{position:relative;background:linear-gradient(135deg,#07284d 0%,#0b4d8a 55%,#1167b8 100%);padding:96px 0 88px;overflow:hidden;color:#fff}
.security-hero::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png'),url('/assets/images/backpic/back-3.png');background-size:cover,auto;background-position:center;opacity:0.2}
.security-hero::after{content:"";position:absolute;top:-120px;right:-60px;width:360px;height:360px;border-radius:50%;background:rgba(16,185,129,0.14);filter:blur(100px)}
.security-hero .container{position:relative;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,0.14);border:1px solid rgba(255,255,255,0.22);color:#fff;font-size:13.5px;font-weight:500;padding:8px 20px;border-radius:999px;margin-bottom:22px;backdrop-filter:blur(6px)}
.hero-badge i{color:#7ce9c2}
.security-hero h1{font-size:46px;font-weight:800;line-height:1.25;margin-bottom:16px;letter-spacing:-0.8px}
.security-hero h1 span{color:#6fe0bc}
.security-hero .lead{font-size:17px;color:rgba(255,255,255,0.82);max-width:620px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
@media(max-width:768px){
  .security-hero{padding:64px 0 56px}
  .security-hero h1{font-size:31px}
  .security-hero .lead{font-size:15px}
}
.stats-badge{display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--text);font-size:14px;font-weight:600;padding:10px 20px;border-radius:999px;box-shadow:0 8px 20px rgba(6,30,70,0.12);line-height:1.2}
.stats-badge i{color:var(--primary)}
.hero-mini-cards{margin-top:44px;display:flex;gap:14px;flex-wrap:wrap}
.security-data{padding:70px 0;background:#f7f9fd}
.data-main-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:48px 40px;box-shadow:var(--shadow-card)}
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.data-item{text-align:center;padding:16px 8px;border-right:1px solid var(--border)}
.data-item:last-child{border-right:0}
.data-item .num{font-size:38px;font-weight:800;color:var(--primary);letter-spacing:-1px;line-height:1.2}
.data-item .label{font-size:14px;color:var(--text-weak);margin-top:8px}
@media(max-width:900px){.data-grid{grid-template-columns:repeat(2,1fr);gap:24px}.data-item{border-right:0;border-bottom:1px solid var(--border);padding-bottom:24px}.data-item:nth-child(n-1){border-bottom:1px solid var(--border)}.data-item:nth-last-child(-n+2){border-bottom:0}}
@media(max-width:520px){.data-grid{grid-template-columns:1fr}.data-item{border-bottom:1px solid var(--border);padding-bottom:22px}.data-item:last-child{border-bottom:0}}
.protect-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.protect-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px 24px;text-align:center;transition:var(--transition)}
.protect-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:rgba(11,93,214,0.2)}
.protect-icon{width:62px;height:62px;border-radius:16px;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:25px;margin:0 auto 18px}
.protect-card h3{font-size:18px;font-weight:700;margin-bottom:10px}
.protect-card p{font-size:14px;color:var(--text-weak);margin-bottom:14px}
.protect-card .tag-link{font-size:13.5px;font-weight:600;color:var(--primary)}
.protect-card .tag-link i{font-size:12px}
@media(max-width:1024px){.protect-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.protect-grid{grid-template-columns:1fr}}
.guide-wrap{display:grid;grid-template-columns:1.1fr 0.9fr;gap:48px;align-items:center}
.guide-media img{width:100%;border-radius:var(--radius-lg);box-shadow:var(--shadow-card)}
.guide-steps{display:flex;flex-direction:column;gap:16px}
.step-item{display:flex;gap:16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:20px 22px;transition:var(--transition)}
.step-item:hover{box-shadow:var(--shadow-card);transform:translateX(4px)}
.step-num{flex-shrink:0;width:38px;height:38px;border-radius:12px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;box-shadow:0 6px 14px rgba(11,93,214,0.25)}
.step-body h4{font-size:16px;font-weight:700;margin-bottom:5px}
.step-body p{font-size:14px;color:var(--text-weak);margin-bottom:0}
@media(max-width:900px){.guide-wrap{grid-template-columns:1fr;gap:36px}}
.tips-block{background:linear-gradient(135deg,#0a3f75,#0b5dd6);border-radius:var(--radius-lg);padding:44px 44px;position:relative;overflow:hidden;color:#fff}
.tips-block::before{content:"";position:absolute;right:-40px;bottom:-40px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,0.08)}
.tips-block .section-tag{background:rgba(255,255,255,0.14);color:#fff;border:1px solid rgba(255,255,255,0.2)}
.tips-block h3{font-size:27px;font-weight:700;margin-bottom:14px}
.tips-block p{color:rgba(255,255,255,0.84);font-size:15px;max-width:600px}
.tips-list{margin-top:28px;display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.tips-list li{display:flex;align-items:flex-start;gap:10px;background:rgba(255,255,255,0.12);border:1px solid rgba(255,255,255,0.18);border-radius:14px;padding:14px 16px;font-size:14.5px;color:#fff;line-height:1.5;backdrop-filter:blur(4px)}
.tips-list li i{color:#7ce9c2;margin-top:4px}
@media(max-width:768px){.tips-list{grid-template-columns:1fr}}
.faq-wrap{max-width:900px;margin:0 auto}
.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);margin-bottom:14px;overflow:hidden;transition:var(--transition)}
.faq-item details{transition:var(--transition)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:22px 26px;font-size:16px;font-weight:600;color:var(--text);transition:var(--transition)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:var(--primary-light)}
.faq-item summary .faq-icon{width:30px;height:30px;border-radius:50%;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:13px;flex-shrink:0;transition:var(--transition)}
.faq-item details[open] summary .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff}
.faq-answer{padding:0 26px 22px;color:var(--text-weak);font-size:14.5px;line-height:1.8;border-top:1px dashed var(--border);margin-top:0}
.faq-answer p{margin-bottom:0;padding-top:16px}
.cta-panel{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);border-radius:var(--radius-lg);padding:56px 48px;text-align:center;color:#fff;position:relative;overflow:hidden}
.cta-panel::before{content:"";position:absolute;top:-80px;left:-40px;width:240px;height:240px;border-radius:50%;background:rgba(255,255,255,0.08)}
.cta-panel h2{font-size:32px;font-weight:800;margin-bottom:12px}
.cta-panel p{color:rgba(255,255,255,0.85);font-size:16px;max-width:520px;margin:0 auto 28px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
@media(max-width:768px){.cta-panel{padding:40px 24px}.cta-panel h2{font-size:25px}}
.site-footer{background:#0d1b30;color:#aebcd0;padding:68px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.1fr;gap:48px;padding-bottom:44px}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand .logo em{color:#7eb4ff}
.footer-brand .logo-sub{color:#8fa3bc}
.footer-brand p{font-size:14.5px;color:#8fa3bc;line-height:1.8;max-width:320px;margin-bottom:20px}
.hero-avatars{display:flex;align-items:center}
.hero-avatars .avatar{width:36px;height:36px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:13px;font-weight:600;border:2px solid #0d1b30;margin-left:-8px}
.hero-avatars .avatar:first-child{margin-left:0}
.hero-avatars .avatar-more{background:#33415c;border-color:#0d1b30;font-size:11px}
.footer-col h4{color:#fff;font-size:16px;font-weight:600;margin-bottom:20px}
.footer-col ul li{margin-bottom:11px}
.footer-col ul a{font-size:14.5px;color:#8fa3bc;transition:var(--transition)}
.footer-col ul a:hover{color:#fff;padding-left:4px}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.08);padding:22px 0;text-align:center}
.footer-bottom p{font-size:13.5px;color:#70829b;margin-bottom:0}
.footer-bottom a{color:#93a7c2}
.footer-bottom a:hover{color:#fff}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:36px}.footer-brand{grid-column:1 / -1}}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr}}
.breadcrumb-bar{background:var(--surface);border-bottom:1px solid var(--border);padding:16px 0}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13.5px;color:var(--text-weak)}
.breadcrumb a{color:var(--text-weak)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#c3cedd}
.breadcrumb .current{color:var(--primary);font-weight:600}
@media(max-width:640px){.logo{font-size:20px}.logo .logo-sub{font-size:14px}}

/* roulang page: article */
:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #dbeafe;
            --accent: #10b981;
            --accent-light: #d1fae5;
            --warning: #f59e0b;
            --warning-light: #fef3c7;
            --bg: #f8fafc;
            --surface: #ffffff;
            --text: #0f172a;
            --text-weak: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 10px 30px rgba(15, 23, 42, .08);
            --shadow-md: 0 6px 18px rgba(15, 23, 42, .07);
            --shadow-lg: 0 20px 50px rgba(15, 23, 42, .14);
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--bg);
            color: var(--text);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }

        ul,
        ol {
            padding-left: 0;
            margin: 0;
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        p {
            margin: 0;
        }

        button,
        input,
        summary {
            font-family: inherit;
        }

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

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .86);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(226, 232, 240, .8);
            box-shadow: 0 4px 20px rgba(15, 23, 42, .04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            height: 74px;
        }

        .logo {
            display: inline-flex;
            align-items: baseline;
            gap: 6px;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            white-space: nowrap;
        }

        .logo em {
            font-style: normal;
            color: var(--primary);
        }

        .logo .logo-sub {
            font-size: 14px;
            font-weight: 700;
            color: var(--text);
            background: var(--primary-light);
            padding: 3px 10px;
            border-radius: 999px;
        }

        .main-nav {
            margin-left: auto;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-list a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 9px 18px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-weak);
            border: 1px solid transparent;
            transition: all .25s ease;
        }

        .nav-list a i {
            font-size: 15px;
            color: inherit;
            transition: color .2s;
        }

        .nav-list a:hover {
            color: var(--primary);
            background: var(--primary-light);
            border-color: rgba(37, 99, 235, .12);
        }

        .nav-list a.active {
            color: #fff;
            background: var(--primary);
            border-color: var(--primary);
            box-shadow: 0 8px 18px rgba(37, 99, 235, .28);
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            border: 1px solid var(--border);
            background: var(--bg);
            color: var(--text);
            align-items: center;
            justify-content: center;
            font-size: 18px;
            cursor: pointer;
            transition: all .25s ease;
        }

        .nav-toggle:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .article-hero {
            position: relative;
            background-position: center;
            background-size: cover;
            padding: 92px 0 80px;
            color: #fff;
        }

        .article-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, .82), rgba(37, 99, 235, .55));
        }

        .article-hero-inner {
            position: relative;
            z-index: 2;
            max-width: 980px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .78);
            margin-bottom: 14px;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, .78);
            transition: color .2s;
        }

        .breadcrumb a:hover {
            color: #fff;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 700;
            background: var(--primary);
            color: #fff;
        }

        .badge-light {
            background: rgba(255, 255, 255, .16);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, .24);
        }

        .article-hero h1 {
            font-size: clamp(28px, 4vw, 44px);
            line-height: 1.3;
            font-weight: 800;
            margin: 18px 0 16px;
            letter-spacing: .5px;
        }

        .hero-desc {
            font-size: 17px;
            color: rgba(255, 255, 255, .86);
            max-width: 780px;
        }

        .meta-row {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 26px;
            font-size: 14px;
            color: rgba(255, 255, 255, .82);
        }

        .meta-row span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .article-main {
            padding: 56px 0 0;
        }

        .article-col {
            margin-bottom: 40px;
        }

        .article-card {
            background: var(--surface);
            border-radius: 20px;
            box-shadow: var(--shadow);
            padding: 44px 44px 40px;
        }

        .article-body {
            font-size: 16px;
            color: #334155;
            line-height: 1.95;
        }

        .article-body h1 {
            font-size: 28px;
            color: var(--text);
            margin: 32px 0 14px;
        }

        .article-body h2 {
            font-size: 24px;
            color: var(--text);
            margin: 32px 0 14px;
            padding-left: 14px;
            border-left: 4px solid var(--primary);
        }

        .article-body h3 {
            font-size: 20px;
            color: var(--text);
            margin: 26px 0 12px;
        }

        .article-body h4 {
            font-size: 17px;
            color: var(--text);
            margin: 22px 0 10px;
        }

        .article-body p {
            margin-bottom: 16px;
        }

        .article-body ul {
            list-style: disc;
            padding-left: 24px;
            margin-bottom: 16px;
        }

        .article-body ol {
            list-style: decimal;
            padding-left: 24px;
            margin-bottom: 16px;
        }

        .article-body li {
            margin-bottom: 8px;
        }

        .article-body blockquote {
            background: var(--primary-light);
            border-left: 4px solid var(--primary);
            padding: 18px 22px;
            border-radius: 12px;
            margin: 24px 0;
            color: #1e293b;
        }

        .article-body img {
            border-radius: 16px;
            margin: 22px 0;
            box-shadow: var(--shadow-md);
        }

        .article-body a {
            color: var(--primary);
            border-bottom: 1px solid rgba(37, 99, 235, .3);
        }

        .article-body a:hover {
            color: var(--primary-dark);
            border-bottom-color: var(--primary);
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 22px 0;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .article-body th,
        .article-body td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border);
            text-align: left;
            font-size: 14px;
        }

        .article-body th {
            background: var(--primary-light);
            font-weight: 700;
            color: var(--primary-dark);
        }

        .not-found {
            text-align: center;
            padding: 52px 0;
        }

        .not-found i {
            font-size: 52px;
            color: var(--warning);
        }

        .not-found h2 {
            font-size: 24px;
            margin: 18px 0 10px;
        }

        .not-found p {
            color: var(--text-weak);
            margin-bottom: 24px;
        }

        .tag-share {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            background: var(--surface);
            border-radius: 16px;
            padding: 20px 24px;
            margin-top: 20px;
            box-shadow: var(--shadow);
        }

        .tag-group {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 5px 12px;
            font-size: 13px;
            color: var(--text-weak);
        }

        .share-row {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-weak);
        }

        .share-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg);
            border: 1px solid var(--border);
            color: var(--text-weak);
            transition: all .25s ease;
        }

        .share-btn:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        .author-box {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--surface);
            border-radius: 16px;
            padding: 24px;
            margin-top: 20px;
            box-shadow: var(--shadow);
        }

        .author-avatar {
            flex: 0 0 auto;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
        }

        .author-box strong {
            font-size: 16px;
            color: var(--text);
        }

        .author-box p {
            font-size: 14px;
            color: var(--text-weak);
            margin-top: 4px;
        }

        .sidebar {
            margin-bottom: 32px;
        }

        .side-card {
            background: var(--surface);
            border-radius: 20px;
            padding: 26px 24px;
            box-shadow: var(--shadow);
            margin-bottom: 24px;
        }

        .side-title {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 17px;
            font-weight: 800;
            margin-bottom: 18px;
            color: var(--text);
        }

        .side-title i {
            color: var(--primary);
        }

        .rank-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 11px 0;
            border-bottom: 1px dashed var(--border);
        }

        .rank-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .rank-list li:first-child {
            padding-top: 0;
        }

        .rank-num {
            flex: 0 0 auto;
            width: 24px;
            height: 24px;
            border-radius: 8px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .rank-list li:nth-child(1) .rank-num {
            background: var(--primary);
            color: #fff;
        }

        .rank-list li:nth-child(2) .rank-num {
            background: var(--accent);
            color: #fff;
        }

        .rank-list li:nth-child(3) .rank-num {
            background: var(--warning);
            color: #fff;
        }

        .rank-list li a {
            font-size: 14px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text);
            transition: color .2s;
        }

        .rank-list li a:hover {
            color: var(--primary);
        }

        .entry-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 0;
            border-bottom: 1px dashed var(--border);
        }

        .entry-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .entry-item:first-child {
            padding-top: 0;
        }

        .entry-item img {
            width: 76px;
            height: 60px;
            object-fit: cover;
            border-radius: 12px;
        }

        .entry-item a {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            transition: color .2s;
        }

        .entry-item a:hover {
            color: var(--primary);
        }

        .entry-item p {
            font-size: 13px;
            color: var(--text-weak);
        }

        .related-section {
            padding: 68px 0;
        }

        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 44px;
        }

        .section-label {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 12px;
        }

        .section-head h2 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 800;
            margin-bottom: 10px;
        }

        .section-head p {
            color: var(--text-weak);
        }

        .rel-card {
            position: relative;
            display: block;
            background: var(--surface);
            border-radius: 18px;
            overflow: hidden;
            box-shadow: var(--shadow);
            margin-bottom: 24px;
            transition: transform .25s ease, box-shadow .25s ease;
        }

        .rel-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }

        .rel-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

        .rel-card .badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(255, 255, 255, .94);
            color: var(--primary);
            box-shadow: 0 4px 12px rgba(15, 23, 42, .12);
        }

        .rel-card h3 {
            padding: 18px 20px 4px;
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--text);
            transition: color .2s;
        }

        .rel-card:hover h3 {
            color: var(--primary);
        }

        .rel-card p {
            padding: 0 20px 20px;
            font-size: 14px;
            color: var(--text-weak);
        }

        .alert-band {
            background: linear-gradient(90deg, #1e293b, #0f172a);
            color: #fff;
            padding: 28px 0;
        }

        .alert-band .container {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
        }

        .alert-band i {
            font-size: 30px;
            color: #38bdf8;
        }

        .alert-band strong {
            color: #38bdf8;
        }

        .alert-band div {
            flex: 1;
            min-width: 260px;
            font-size: 15px;
            line-height: 1.8;
        }

        .faq-section {
            padding: 68px 0;
            background: var(--surface);
        }

        .faq-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 0 20px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: box-shadow .25s ease, border-color .25s ease;
        }

        .faq-item[open] {
            box-shadow: var(--shadow-md);
            border-color: rgba(37, 99, 235, .3);
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            padding: 18px 0;
            font-weight: 700;
            font-size: 16px;
            cursor: pointer;
            list-style: none;
        }

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

        .faq-item summary::after {
            content: "+";
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            transition: transform .2s ease;
        }

        .faq-item[open] summary::after {
            content: "−";
        }

        .faq-item p {
            padding: 0 0 18px;
            color: var(--text-weak);
            font-size: 15px;
        }

        .cta-section {
            position: relative;
            background-position: center;
            background-size: cover;
            padding: 80px 0;
            color: #fff;
            text-align: center;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(37, 99, 235, .92), rgba(16, 185, 129, .74));
        }

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

        .cta-section h2 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 800;
            margin-bottom: 10px;
        }

        .cta-section p {
            font-size: 16px;
            opacity: .92;
            margin-bottom: 28px;
        }

        .cta-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 700;
            border: 2px solid transparent;
            cursor: pointer;
            transition: all .25s ease;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 20px rgba(37, 99, 235, .3);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 26px rgba(37, 99, 235, .34);
        }

        .btn-light {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 8px 20px rgba(15, 23, 42, .16);
        }

        .btn-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 14px 28px rgba(15, 23, 42, .2);
        }

        .btn-outline-light {
            border-color: rgba(255, 255, 255, .8);
            color: #fff;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .14);
            border-color: #fff;
            transform: translateY(-2px);
        }

        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 44px;
            padding-bottom: 36px;
        }

        .footer-brand .logo {
            color: #fff;
        }

        .footer-brand .logo em {
            color: #fff;
        }

        .footer-brand .logo .logo-sub {
            background: rgba(255, 255, 255, .14);
            color: #fff;
        }

        .footer-brand p {
            margin: 16px 0 18px;
            font-size: 14px;
            line-height: 1.8;
            color: #94a3b8;
        }

        .hero-avatars {
            display: flex;
            align-items: center;
        }

        .avatar {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            margin-left: -8px;
            border: 2px solid #0f172a;
        }

        .avatar:first-child {
            margin-left: 0;
        }

        .avatar-more {
            background: #1e293b;
            font-size: 12px;
            color: #94a3b8;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul a {
            font-size: 14px;
            color: #94a3b8;
        }

        .footer-col ul a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(148, 163, 184, .16);
            padding: 22px 0;
            font-size: 13px;
            color: #64748b;
            text-align: center;
        }

        .footer-bottom a {
            color: #94a3b8;
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        :focus-visible {
            outline: 3px solid rgba(37, 99, 235, .55);
            outline-offset: 2px;
            border-radius: 6px;
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .article-card {
                padding: 32px 28px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }

            .nav-toggle {
                display: flex;
            }

            .main-nav {
                position: absolute;
                top: 64px;
                left: 24px;
                right: 24px;
                display: none;
                background: #fff;
                border-radius: 16px;
                box-shadow: var(--shadow-lg);
                padding: 12px;
                border: 1px solid var(--border);
            }

            .main-nav.nav-open {
                display: block;
            }

            .nav-list {
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
            }

            .nav-list a {
                padding: 13px 16px;
                justify-content: flex-start;
            }

            .article-hero {
                padding: 60px 0 52px;
            }

            .article-main {
                padding: 32px 0 0;
            }

            .article-card {
                padding: 24px 20px;
            }

            .tag-share {
                flex-direction: column;
                align-items: flex-start;
            }

            .related-section,
            .faq-section {
                padding: 52px 0;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .cta-section {
                padding: 60px 0;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .logo {
                font-size: 19px;
            }

            .logo .logo-sub {
                font-size: 12px;
            }

            .article-hero h1 {
                font-size: 26px;
            }

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

            .meta-row {
                gap: 12px;
                font-size: 13px;
            }

            .article-body {
                font-size: 15px;
            }

            .article-body th,
            .article-body td {
                padding: 10px 12px;
                font-size: 13px;
            }

            .author-box {
                flex-direction: column;
                text-align: center;
            }

            .entry-item img {
                width: 64px;
                height: 52px;
            }

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

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