/* roulang page: index */
:root {
  --primary: #0f2744;
  --primary-light: #1e3a5f;
  --accent: #c9a227;
  --accent-light: #e5c560;
  --bg: #f5f8fc;
  --bg-white: #ffffff;
  --text: #1a2b3c;
  --text-light: #64748b;
  --border: #e2e8f0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
  --transition: all 0.3s ease;
  --font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-family); background: var(--bg); color: var(--text); line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: var(--primary); transition: var(--transition); }
img { max-width: 100%; display: block; height: auto; }
button, input, select, textarea { font-family: inherit; }
ul, ol { list-style: none; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.grid-padding-x { padding-left: 12px; padding-right: 12px; }
.section-padding { padding: 80px 0; }
.section-headline { text-align: center; margin-bottom: 48px; }
.section-headline .subtitle { display: inline-block; background: rgba(201, 162, 39, 0.1); color: var(--accent); font-size: 14px; font-weight: 600; padding: 4px 16px; border-radius: 30px; letter-spacing: 1px; margin-bottom: 12px; }
.section-headline h2 { font-size: 36px; font-weight: 800; color: var(--primary); line-height: 1.3; margin-bottom: 12px; }
.section-headline p { color: var(--text-light); font-size: 16px; max-width: 640px; margin: 0 auto; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; border-radius: 50px; font-size: 15px; font-weight: 600; border: none; cursor: pointer; transition: var(--transition); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #b8901a; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(201, 162, 39, 0.3); }
.btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255, 255, 255, 0.6); }
.btn-outline:hover { border-color: #fff; background: rgba(255, 255, 255, 0.1); transform: translateY(-2px); }
.btn-dark { background: var(--primary); color: #fff; }
.btn-dark:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(15, 39, 68, 0.3); }
.badge { display: inline-flex; align-items: center; gap: 4px; background: rgba(201, 162, 39, 0.12); color: var(--accent); font-size: 12px; font-weight: 700; padding: 4px 14px; border-radius: 20px; letter-spacing: 0.5px; }
.badge-hot { background: #fee2e2; color: #dc2626; }
.badge-new { background: #dcfce7; color: #16a34a; }
.card { background: var(--bg-white); border-radius: var(--radius); border: 1px solid var(--border); transition: var(--transition); }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.text-center { text-align: center; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }

/* Header */
.site-header { background: #fff; border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 999; box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04); }
.header-inner { display: flex; align-items: center; gap: 24px; height: 72px; }
.site-brand { flex-shrink: 0; display: flex; align-items: center; gap: 10px; }
.brand-logo { width: 40px; height: 40px; border-radius: 12px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); display: flex; align-items: center; justify-content: center; color: var(--accent); font-size: 18px; }
.brand-text { font-size: 20px; font-weight: 800; color: var(--primary); letter-spacing: 0.5px; white-space: nowrap; }
.brand-text span { color: var(--accent); }
.main-nav { flex: 1; }
.main-nav ul { display: flex; gap: 32px; }
.main-nav a { font-size: 15px; font-weight: 600; color: var(--text-light); padding: 6px 2px; position: relative; }
.main-nav a::after { content: ""; position: absolute; left: 0; bottom: -2px; width: 0; height: 2px; background: var(--accent); transition: var(--transition); border-radius: 2px; }
.main-nav a:hover { color: var(--primary); }
.main-nav a:hover::after, .main-nav a.active::after { width: 100%; }
.main-nav a.active { color: var(--primary); }
.header-tools { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.search-box { position: relative; }
.search-box input { width: 200px; height: 40px; border: 1px solid var(--border); border-radius: 30px; padding: 0 16px 0 38px; font-size: 14px; background: var(--bg); transition: var(--transition); }
.search-box input:focus { outline: none; width: 240px; border-color: var(--accent); background: #fff; box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.15); }
.search-box i { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--text-light); font-size: 14px; }
.header-cta { padding: 10px 24px; font-size: 14px; border-radius: 30px; }

/* Hero */
.hero { position: relative; background: linear-gradient(135deg, rgba(15, 39, 68, 0.94), rgba(30, 58, 95, 0.88)), url('/assets/images/backpic/back-1.png') center/cover no-repeat; padding: 120px 0 110px; color: #fff; }
.hero-inner { max-width: 800px; }
.hero-tag { display: inline-flex; align-items: center; gap: 6px; background: rgba(255, 255, 255, 0.12); backdrop-filter: blur(8px); border: 1px solid rgba(255, 255, 255, 0.18); padding: 6px 18px; border-radius: 30px; font-size: 13px; font-weight: 600; letter-spacing: 0.5px; margin-bottom: 24px; }
.hero-tag i { color: var(--accent-light); }
.hero h1 { font-size: 52px; font-weight: 900; line-height: 1.2; margin-bottom: 16px; letter-spacing: 1px; }
.hero h1 span { color: var(--accent-light); }
.hero p { font-size: 18px; line-height: 1.8; color: rgba(255, 255, 255, 0.85); max-width: 620px; margin-bottom: 36px; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-points { display: flex; gap: 28px; margin-top: 56px; flex-wrap: wrap; }
.hero-points .point { display: flex; align-items: center; gap: 8px; font-size: 14px; color: rgba(255, 255, 255, 0.8); }
.hero-points .point i { color: var(--accent-light); }

/* Stats */
.stats-section { margin-top: -50px; position: relative; z-index: 2; padding-bottom: 40px; }
.stats-card { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-md); border: 1px solid var(--border); padding: 32px 24px; text-align: center; transition: var(--transition); }
.stats-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.stats-card .stat-num { font-size: 36px; font-weight: 900; color: var(--primary); line-height: 1.2; }
.stats-card .stat-num small { font-size: 16px; font-weight: 600; color: var(--accent); margin-left: 2px; }
.stats-card .stat-label { font-size: 14px; color: var(--text-light); margin-top: 8px; }

/* Category */
.category-section { padding: 70px 0; }
.category-card { background: #fff; border-radius: var(--radius); border: 1px solid var(--border); overflow: hidden; display: flex; box-shadow: var(--shadow-sm); transition: var(--transition); }
.category-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.category-card .cat-img { flex: 0 0 200px; min-height: 200px; background-size: cover; background-position: center; position: relative; }
.category-card .cat-img .overlay { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(15, 39, 68, 0.6)); }
.category-card .cat-body { padding: 32px; display: flex; flex-direction: column; justify-content: center; }
.category-card .cat-body .badge { align-self: flex-start; margin-bottom: 14px; }
.category-card h3 { font-size: 24px; font-weight: 800; color: var(--primary); margin-bottom: 10px; }
.category-card p { color: var(--text-light); font-size: 15px; line-height: 1.8; margin-bottom: 18px; }
.cat-mini { background: #fff; border-radius: var(--radius); border: 1px solid var(--border); padding: 28px; box-shadow: var(--shadow-sm); transition: var(--transition); }
.cat-mini:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.cat-mini .icon-wrap { width: 48px; height: 48px; border-radius: 14px; background: rgba(201, 162, 39, 0.1); display: flex; align-items: center; justify-content: center; font-size: 20px; color: var(--accent); margin-bottom: 16px; }
.cat-mini h4 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.cat-mini p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

/* News */
.news-section { padding: 80px 0; background: #fff; border-top: 1px solid var(--border); }
.news-list { display: flex; flex-direction: column; gap: 16px; }
.news-item { display: flex; align-items: center; gap: 20px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 20px 24px; transition: var(--transition); }
.news-item:hover { background: #fff; box-shadow: var(--shadow-md); transform: translateX(4px); border-color: rgba(201, 162, 39, 0.4); }
.news-item .news-order { flex-shrink: 0; font-size: 22px; font-weight: 900; color: var(--accent); width: 40px; text-align: center; font-style: italic; }
.news-item .news-content { flex: 1; min-width: 0; }
.news-item .news-content h3 { font-size: 17px; font-weight: 700; color: var(--primary); margin-bottom: 4px; line-height: 1.5; }
.news-item .news-content h3 a { color: inherit; }
.news-item .news-content h3 a:hover { color: var(--accent); }
.news-item .news-content p { font-size: 14px; color: var(--text-light); line-height: 1.6; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.news-item .news-meta { display: flex; align-items: center; gap: 12px; flex-shrink: 0; font-size: 13px; color: var(--text-light); }
.news-item .news-meta .badge { font-size: 12px; }
.news-empty { text-align: center; padding: 50px 20px; color: var(--text-light); font-size: 15px; background: var(--bg); border-radius: var(--radius); border: 1px dashed var(--border); }

/* Features */
.features-section { padding: 80px 0; }
.feature-card { background: #fff; border-radius: var(--radius); border: 1px solid var(--border); overflow: hidden; box-shadow: var(--shadow-sm); transition: var(--transition); }
.feature-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-8px); }
.feature-card .feat-img { height: 180px; background-size: cover; background-position: center; position: relative; }
.feature-card .feat-img .tag { position: absolute; top: 14px; left: 14px; }
.feature-card .feat-body { padding: 28px; }
.feature-card .feat-body h3 { font-size: 20px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.feature-card .feat-body p { font-size: 14px; color: var(--text-light); line-height: 1.8; margin-bottom: 16px; }
.feature-card .feat-link { font-size: 14px; font-weight: 600; color: var(--accent); display: inline-flex; align-items: center; gap: 6px; }
.feature-card .feat-link:hover { gap: 10px; }

/* Process */
.process-section { padding: 80px 0; background: var(--primary); color: #fff; }
.process-section .section-headline h2 { color: #fff; }
.process-section .section-headline p { color: rgba(255, 255, 255, 0.7); }
.process-step { text-align: center; padding: 32px 20px; background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.1); border-radius: var(--radius); backdrop-filter: blur(4px); height: 100%; transition: var(--transition); }
.process-step:hover { background: rgba(255, 255, 255, 0.12); transform: translateY(-4px); }
.process-step .step-num { font-size: 44px; font-weight: 900; color: var(--accent-light); line-height: 1; margin-bottom: 16px; }
.process-step .step-icon { width: 56px; height: 56px; border-radius: 50%; background: rgba(255, 255, 255, 0.1); display: flex; align-items: center; justify-content: center; font-size: 22px; color: var(--accent-light); margin: 0 auto 18px; }
.process-step h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.process-step p { font-size: 14px; color: rgba(255, 255, 255, 0.7); line-height: 1.7; }

/* FAQ */
.faq-section { padding: 80px 0; }
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 14px; overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: rgba(201, 162, 39, 0.4); box-shadow: var(--shadow-sm); }
.faq-item summary { display: flex; align-items: center; justify-content: space-between; padding: 20px 24px; cursor: pointer; font-size: 16px; font-weight: 600; color: var(--primary); list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i { color: var(--accent); font-size: 14px; transition: var(--transition); flex-shrink: 0; }
.faq-item[open] summary i { transform: rotate(180deg); }
.faq-item .faq-body { padding: 0 24px 20px; font-size: 15px; color: var(--text-light); line-height: 1.8; }

/* CTA */
.cta-section { padding: 80px 0; background: linear-gradient(135deg, rgba(15, 39, 68, 0.95), rgba(30, 58, 95, 0.9)), url('/assets/images/backpic/back-2.png') center/cover no-repeat; color: #fff; text-align: center; }
.cta-section h2 { font-size: 38px; font-weight: 800; margin-bottom: 16px; }
.cta-section p { font-size: 17px; color: rgba(255, 255, 255, 0.8); max-width: 600px; margin: 0 auto 36px; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* Footer */
.site-footer { background: #0a1a2e; color: rgba(255, 255, 255, 0.7); padding: 64px 0 28px; }
.footer-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 40px; flex-wrap: wrap; margin-bottom: 40px; }
.footer-brand .brand-text { color: #fff; }
.footer-brand p { font-size: 14px; color: rgba(255, 255, 255, 0.5); margin-top: 12px; max-width: 360px; line-height: 1.7; }
.footer-links { display: flex; gap: 60px; flex-wrap: wrap; }
.footer-links h4 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 18px; }
.footer-links ul li { margin-bottom: 10px; }
.footer-links a { font-size: 14px; color: rgba(255, 255, 255, 0.6); }
.footer-links a:hover { color: var(--accent-light); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 13px; color: rgba(255, 255, 255, 0.4); }

/* Responsive */
@media (max-width: 1024px) {
  .header-inner { gap: 16px; }
  .main-nav ul { gap: 18px; }
  .search-box input { width: 160px; }
  .search-box input:focus { width: 180px; }
  .hero h1 { font-size: 42px; }
  .section-headline h2 { font-size: 30px; }
  .category-card .cat-img { flex-basis: 150px; min-height: 180px; }
}
@media (max-width: 768px) {
  .header-inner { flex-wrap: wrap; height: auto; padding: 12px 0; }
  .site-brand { order: 1; }
  .header-tools { order: 2; margin-left: auto; }
  .main-nav { order: 3; width: 100%; overflow-x: auto; padding-bottom: 4px; }
  .main-nav ul { gap: 24px; padding-bottom: 4px; }
  .header-tools .btn-header-cta { display: none; }
  .hero { padding: 80px 0; }
  .hero h1 { font-size: 34px; }
  .hero p { font-size: 16px; }
  .section-padding { padding: 56px 0; }
  .category-card { flex-direction: column; }
  .category-card .cat-img { min-height: 160px; }
  .news-item { flex-direction: column; align-items: flex-start; gap: 10px; }
  .news-item .news-meta { width: 100%; }
  .footer-top { flex-direction: column; gap: 32px; }
  .footer-links { gap: 32px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .header-tools .search-box { display: none; }
  .brand-text { font-size: 17px; }
  .hero h1 { font-size: 28px; }
  .hero-points { gap: 16px; }
  .section-headline h2 { font-size: 26px; }
  .stats-card .stat-num { font-size: 28px; }
  .cta-section h2 { font-size: 28px; }
  .cta-buttons .btn { width: 100%; justify-content: center; }
}

/* roulang page: article */
:root {
  --primary: #1b2a4a;
  --primary-dark: #101c36;
  --primary-light: #2b3f6e;
  --accent: #c9a44c;
  --accent-light: #e0c170;
  --accent-dark: #a8873a;
  --bg: #f4f6fa;
  --bg-alt: #eaf0f8;
  --card: #ffffff;
  --text: #1c2333;
  --text-light: #6b7b8d;
  --text-muted: #9aa8b8;
  --border: #e3e9f0;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 50px;
  --shadow-sm: 0 2px 10px rgba(27,42,74,.06);
  --shadow-md: 0 8px 30px rgba(27,42,74,.10);
  --shadow-lg: 0 20px 50px rgba(27,42,74,.14);
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 32px;
  --space-lg: 64px;
  --space-xl: 100px;
  --transition: all .3s ease;
}
html { scroll-behavior: smooth; }
*, *::before, *::after { box-sizing: border-box; }
body { margin:0; padding:0; 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; }
a { text-decoration:none; color:inherit; transition:var(--transition); }
ul { list-style:none; margin:0; padding:0; }
input, button, textarea, select { font-family:inherit; }
.container { max-width:1200px; margin:0 auto; padding:0 24px; position:relative; }
::-webkit-scrollbar { width:8px; height:8px; }
::-webkit-scrollbar-track { background:var(--bg-alt); }
::-webkit-scrollbar-thumb { background:var(--primary-light); border-radius:10px; }

/* ===== Header ===== */
.site-header { position:sticky; top:0; z-index:999; background:rgba(255,255,255,.96); backdrop-filter:blur(12px); border-bottom:1px solid var(--border); box-shadow:0 2px 20px rgba(27,42,74,.04); }
.header-inner { display:flex; align-items:center; gap:24px; height:72px; }
.site-brand { display:flex; align-items:center; gap:12px; flex-shrink:0; }
.brand-logo { width:44px; height:44px; border-radius:14px; display:flex; align-items:center; justify-content:center; background:linear-gradient(135deg,var(--primary),var(--primary-light)); color:#fff; font-size:20px; box-shadow:0 4px 14px rgba(27,42,74,.28); }
.brand-text { font-size:20px; font-weight:700; color:var(--primary); letter-spacing:.5px; white-space:nowrap; }
.brand-text span { color:var(--accent); font-weight:800; }
.main-nav { flex:1; margin-left:16px; }
.main-nav ul { display:flex; gap:8px; }
.main-nav li a { display:block; padding:8px 18px; border-radius:var(--radius-full); font-size:15px; font-weight:600; color:var(--text-light); transition:var(--transition); }
.main-nav li a:hover { color:var(--primary); background:var(--bg-alt); }
.main-nav li a.active { color:#fff; background:linear-gradient(135deg,var(--primary),var(--primary-light)); box-shadow:0 4px 12px rgba(27,42,74,.22); }
.header-tools { display:flex; align-items:center; gap:14px; }
.search-box { display:flex; align-items:center; gap:8px; background:var(--bg-alt); border:1px solid transparent; border-radius:var(--radius-full); padding:9px 18px; width:220px; transition:var(--transition); }
.search-box:focus-within { border-color:var(--accent); background:#fff; box-shadow:0 0 0 3px rgba(201,164,76,.18); }
.search-box i { color:var(--text-light); font-size:13px; }
.search-box input { border:none; background:transparent; outline:none; font-size:14px; color:var(--text); width:100%; }
.btn { display:inline-flex; align-items:center; justify-content:center; gap:8px; padding:12px 26px; border-radius:var(--radius-full); border:2px solid transparent; font-size:15px; font-weight:600; line-height:1.2; cursor:pointer; transition:var(--transition); letter-spacing:.3px; }
.btn-primary { background:linear-gradient(135deg,var(--primary),var(--primary-light)); color:#fff; box-shadow:0 6px 18px rgba(27,42,74,.28); }
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 10px 28px rgba(27,42,74,.35); }
.btn-outline { border-color:var(--primary); color:var(--primary); background:transparent; }
.btn-outline:hover { background:var(--primary); color:#fff; }
.btn-accent { background:linear-gradient(135deg,var(--accent),var(--accent-light)); color:#fff; box-shadow:0 6px 18px rgba(201,164,76,.35); }
.btn-accent:hover { transform:translateY(-2px); box-shadow:0 10px 28px rgba(201,164,76,.45); }
.header-cta { padding:10px 22px; font-size:14px; }

/* ===== Reading Progress ===== */
.reading-progress { position:fixed; top:0; left:0; width:100%; height:3px; z-index:9999; background:transparent; pointer-events:none; }
.reading-progress span { display:block; height:100%; width:0; background:linear-gradient(90deg,var(--accent),var(--accent-light)); border-radius:0 3px 3px 0; transition:width .08s linear; }

/* ===== Breadcrumb ===== */
.breadcrumb-section { background:linear-gradient(180deg,var(--bg-alt),var(--bg)); padding:22px 0 0; }
.breadcrumb { display:flex; align-items:center; gap:8px; flex-wrap:wrap; font-size:14px; color:var(--text-light); background:var(--card); border:1px solid var(--border); border-radius:var(--radius-md); padding:12px 20px; box-shadow:var(--shadow-sm); }
.breadcrumb a { color:var(--primary); font-weight:600; }
.breadcrumb a:hover { color:var(--accent-dark); }
.breadcrumb i { font-size:10px; color:var(--text-muted); }
.breadcrumb .current { color:var(--text); font-weight:600; max-width:350px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }

/* ===== Article Section ===== */
.article-section { padding:40px 0 64px; }
.article-card { background:var(--card); border-radius:var(--radius-lg); box-shadow:var(--shadow-sm); border:1px solid var(--border); padding:40px 46px; margin-bottom:32px; transition:box-shadow .3s; }
.article-card:hover { box-shadow:var(--shadow-md); }
.article-head { margin-bottom:28px; border-bottom:1px solid var(--border); padding-bottom:28px; }
.article-tags { display:flex; align-items:center; gap:10px; margin-bottom:18px; }
.tag { display:inline-flex; align-items:center; gap:6px; background:var(--bg-alt); color:var(--primary); font-size:13px; font-weight:600; padding:5px 14px; border-radius:var(--radius-full); }
.badge { display:inline-flex; align-items:center; gap:5px; font-size:12px; font-weight:700; padding:4px 12px; border-radius:var(--radius-full); }
.badge.hot { background:rgba(255,87,34,.12); color:#e64a19; }
.article-head h1 { font-size:34px; line-height:1.35; color:var(--primary); margin:0 0 18px; font-weight:800; letter-spacing:.3px; }
.article-meta { display:flex; gap:22px; flex-wrap:wrap; font-size:14px; color:var(--text-light); }
.article-meta span { display:flex; align-items:center; gap:6px; }
.article-meta i { color:var(--accent); }
.article-cover { margin:24px 0; border-radius:var(--radius-md); overflow:hidden; box-shadow:var(--shadow-sm); }
.article-cover img { width:100%; height:auto; aspect-ratio:16/8; object-fit:cover; }
.article-body { font-size:16px; line-height:2; color:var(--text); }
.article-body p { margin:0 0 1.6em; }
.article-body h2 { font-size:24px; color:var(--primary); margin:2em 0 1em; font-weight:700; padding-left:14px; border-left:4px solid var(--accent); }
.article-body h3 { font-size:19px; color:var(--primary-light); margin:1.6em 0 .8em; font-weight:700; }
.article-body ul, .article-body ol { margin:0 0 1.6em 1.2em; }
.article-body ul li { position:relative; padding-left:8px; margin-bottom:.6em; }
.article-body ul li::before { content:"▸"; color:var(--accent); font-weight:700; margin-right:8px; }
.article-body ol li { margin-bottom:.6em; }
.article-body img { border-radius:12px; margin:24px 0; box-shadow:var(--shadow-sm); }
.article-body blockquote { background:var(--bg-alt); border-left:4px solid var(--accent); padding:18px 24px; border-radius:0 12px 12px 0; margin:1.8em 0; color:var(--text-light); font-style:italic; }
.article-body a { color:var(--accent-dark); font-weight:600; border-bottom:1px solid transparent; }
.article-body a:hover { border-bottom-color:var(--accent-dark); }
.article-footer { display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; padding-top:24px; margin-top:32px; border-top:1px solid var(--border); }
.article-footer .tag i { font-size:11px; }
.article-share { display:flex; align-items:center; gap:8px; font-size:14px; color:var(--text-light); }
.article-share a { width:36px; height:36px; border-radius:50%; display:flex; align-items:center; justify-content:center; background:var(--bg-alt); color:var(--text-light); font-size:15px; transition:var(--transition); }
.article-share a:hover { background:var(--primary); color:#fff; transform:translateY(-2px); }

/* ===== Not Found ===== */
.not-found { text-align:center; padding:70px 30px; }
.not-found-icon { font-size:64px; color:var(--text-muted); margin-bottom:20px; }
.not-found h2 { font-size:28px; color:var(--primary); margin-bottom:12px; }
.not-found p { color:var(--text-light); margin-bottom:30px; font-size:16px; }

/* ===== Sidebar ===== */
.sidebar { position:sticky; top:100px; display:flex; flex-direction:column; gap:24px; }
.sidebar-card { background:var(--card); border-radius:var(--radius-md); box-shadow:var(--shadow-sm); border:1px solid var(--border); padding:24px; transition:var(--transition); }
.sidebar-card:hover { box-shadow:var(--shadow-md); }
.sidebar-card h4 { font-size:17px; color:var(--primary); margin-bottom:16px; display:flex; align-items:center; gap:8px; }
.sidebar-card h4::before { content:""; width:6px; height:18px; background:var(--accent); border-radius:3px; }
.platform-card { text-align:center; padding:32px 24px; background:linear-gradient(160deg,var(--primary),var(--primary-light)); border:none; color:#fff; }
.platform-badge { width:56px; height:56px; margin:0 auto 14px; border-radius:16px; background:rgba(255,255,255,.15); display:flex; align-items:center; justify-content:center; font-size:24px; color:var(--accent-light); }
.platform-card h3 { font-size:20px; margin-bottom:8px; font-weight:700; }
.platform-card p { font-size:14px; color:rgba(255,255,255,.72); margin-bottom:20px; }
.platform-card .btn { width:100%; background:var(--accent); color:#fff; box-shadow:0 6px 18px rgba(0,0,0,.18); }
.platform-card .btn:hover { background:var(--accent-light); }
.tag-cloud { display:flex; flex-wrap:wrap; gap:10px; }
.hot-list .hot-item { display:flex; align-items:center; gap:14px; padding:12px 0; border-bottom:1px solid var(--border); transition:var(--transition); }
.hot-list .hot-item:last-child { border-bottom:none; }
.hot-list .hot-item:hover { padding-left:6px; }
.hot-num { width:28px; height:28px; border-radius:8px; background:var(--bg-alt); color:var(--text-light); font-weight:800; font-size:13px; display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.hot-item:nth-child(1) .hot-num, .hot-item:nth-child(2) .hot-num, .hot-item:nth-child(3) .hot-num { background:linear-gradient(135deg,var(--accent),var(--accent-light)); color:#fff; }
.hot-item h5 { font-size:14px; margin:0 0 2px; font-weight:600; color:var(--text); }
.hot-tag { font-size:11px; color:var(--text-muted); display:inline-flex; align-items:center; gap:4px; }
.hot-tag i { color:#e64a19; }

/* ===== Stats Section ===== */
.stats-section { padding:0 0 64px; }
.stats-wrap { background:linear-gradient(120deg,var(--primary-dark),var(--primary)); border-radius:var(--radius-lg); padding:52px 48px; box-shadow:var(--shadow-lg); position:relative; overflow:hidden; }
.stats-wrap::before { content:""; position:absolute; top:-60px; right:-60px; width:220px; height:220px; border-radius:50%; background:rgba(201,164,76,.15); }
.stats-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:32px; position:relative; z-index:2; }
.stat-card { text-align:center; }
.stat-num { font-size:46px; font-weight:800; color:var(--accent); line-height:1.2; font-family:"DIN Alternate","PingFang SC",sans-serif; }
.stat-label { font-size:14px; color:rgba(255,255,255,.72); margin-top:6px; }

/* ===== Related / 看点 ===== */
.related-section { padding:0 0 64px; }
.section-title { display:flex; align-items:flex-end; justify-content:space-between; margin-bottom:36px; }
.section-title h2 { font-size:30px; font-weight:800; color:var(--primary); margin:0; display:flex; align-items:center; gap:12px; }
.section-title h2::before { content:""; width:8px; height:32px; background:linear-gradient(180deg,var(--accent),var(--accent-light)); border-radius:4px; }
.section-title p { color:var(--text-light); font-size:15px; margin:0; }
.related-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:28px; }
.related-card { background:var(--card); border-radius:var(--radius-md); box-shadow:var(--shadow-sm); border:1px solid var(--border); overflow:hidden; transition:var(--transition); position:relative; }
.related-card:hover { transform:translateY(-6px); box-shadow:var(--shadow-md); }
.related-cover { position:relative; overflow:hidden; aspect-ratio:16/9; }
.related-cover img { width:100%; height:100%; object-fit:cover; transition:transform .5s ease; }
.related-card:hover .related-cover img { transform:scale(1.06); }
.related-cat { position:absolute; top:14px; left:14px; background:rgba(27,42,74,.82); backdrop-filter:blur(6px); color:#fff; font-size:12px; font-weight:600; padding:4px 12px; border-radius:var(--radius-full); }
.related-content { padding:22px 24px 26px; }
.related-content h3 { font-size:18px; font-weight:700; color:var(--primary); margin-bottom:8px; line-height:1.5; }
.related-content p { font-size:14px; color:var(--text-light); line-height:1.7; margin-bottom:12px; }
.related-more { font-size:13px; color:var(--accent-dark); font-weight:700; display:inline-flex; align-items:center; gap:4px; }
.related-more i { transition:transform .3s; }
.related-card:hover .related-more i { transform:translateX(4px); }

/* ===== FAQ ===== */
.faq-section { padding:0 0 64px; }
.faq-wrap { max-width:880px; margin:0 auto; }
.faq-card { background:var(--card); border-radius:var(--radius-md); box-shadow:var(--shadow-sm); border:1px solid var(--border); margin-bottom:14px; overflow:hidden; transition:var(--transition); }
.faq-card:hover { box-shadow:var(--shadow-md); }
.faq-question { width:100%; background:transparent; border:none; text-align:left; padding:22px 28px; font-size:16px; font-weight:700; color:var(--primary); cursor:pointer; display:flex; justify-content:space-between; align-items:center; gap:16px; transition:var(--transition); }
.faq-question:hover { color:var(--accent-dark); }
.faq-question i { font-size:14px; color:var(--accent); transition:transform .4s ease; }
.faq-card.active .faq-question i { transform:rotate(180deg); }
.faq-answer { display:grid; grid-template-rows:0fr; transition:grid-template-rows .4s ease; }
.faq-card.active .faq-answer { grid-template-rows:1fr; }
.faq-answer-inner { overflow:hidden; }
.faq-answer p { padding:0 28px 24px; margin:0; color:var(--text-light); font-size:15px; line-height:1.9; }

/* ===== CTA ===== */
.cta-section { padding:0 0 80px; }
.cta-inner { background:linear-gradient(135deg,rgba(16,28,54,.92),rgba(27,42,74,.88)),url('/assets/images/backpic/back-2.png') center/cover no-repeat; border-radius:var(--radius-lg); padding:80px 60px; text-align:center; color:#fff; box-shadow:var(--shadow-lg); position:relative; overflow:hidden; }
.cta-inner::before { content:""; position:absolute; top:-80px; left:-80px; width:240px; height:240px; border-radius:50%; background:rgba(201,164,76,.18); }
.cta-inner::after { content:""; position:absolute; bottom:-80px; right:-80px; width:260px; height:260px; border-radius:50%; background:rgba(255,255,255,.06); }
.cta-title { font-size:34px; font-weight:800; margin-bottom:14px; position:relative; z-index:2; letter-spacing:1px; }
.cta-sub { font-size:17px; color:rgba(255,255,255,.78); margin-bottom:36px; position:relative; z-index:2; }
.cta-btns { display:flex; gap:16px; justify-content:center; flex-wrap:wrap; position:relative; z-index:2; }
.cta-btns .btn-accent { background:linear-gradient(135deg,var(--accent),var(--accent-light)); }
.cta-btns .btn-outline { border-color:rgba(255,255,255,.7); color:#fff; }
.cta-btns .btn-outline:hover { background:#fff; color:var(--primary); }

/* ===== Footer ===== */
.site-footer { background:var(--primary-dark); color:rgba(255,255,255,.8); padding:64px 0 0; }
.footer-top { display:grid; grid-template-columns:2.2fr 3fr; gap:48px; padding-bottom:40px; border-bottom:1px solid rgba(255,255,255,.1); }
.footer-brand .site-brand { margin-bottom:16px; }
.footer-brand p { font-size:15px; line-height:1.9; color:rgba(255,255,255,.62); margin:0; }
.footer-links { display:grid; grid-template-columns:repeat(3,1fr); gap:28px; }
.footer-links h4 { font-size:16px; color:#fff; margin-bottom:16px; font-weight:700; }
.footer-links ul li { margin-bottom:10px; }
.footer-links a { font-size:14px; color:rgba(255,255,255,.62); transition:var(--transition); }
.footer-links a:hover { color:var(--accent-light); padding-left:4px; }
.footer-bottom { display:flex; justify-content:space-between; align-items:center; padding:22px 0; font-size:13px; color:rgba(255,255,255,.45); flex-wrap:wrap; gap:12px; }

/* ===== Responsive ===== */
@media (max-width:1024px) {
  .header-inner { gap:14px; }
  .search-box { width:160px; }
  .article-card { padding:30px; }
  .stats-grid { grid-template-columns:repeat(2,1fr); gap:24px; }
  .related-grid { grid-template-columns:repeat(2,1fr); }
  .footer-top { grid-template-columns:1fr; gap:36px; }
}
@media (max-width:768px) {
  .header-inner { flex-wrap:wrap; height:auto; padding:14px 0; gap:10px; }
  .main-nav { order:3; flex-basis:100%; margin-left:0; overflow-x:auto; }
  .main-nav ul { display:flex; gap:4px; flex-wrap:nowrap; }
  .main-nav li a { padding:8px 14px; font-size:14px; white-space:nowrap; }
  .header-tools { order:2; margin-left:auto; }
  .search-box { display:none; }
  .article-section { padding-top:24px; }
  .article-card { padding:24px; }
  .article-head h1 { font-size:26px; }
  .article-cover img { aspect-ratio:16/9; }
  .article-footer { flex-direction:column; align-items:flex-start; gap:16px; }
  .sidebar { position:static; }
  .stats-wrap { padding:40px 24px; }
  .stat-num { font-size:32px; }
  .section-title { flex-direction:column; align-items:flex-start; gap:8px; }
  .related-grid { grid-template-columns:1fr; }
  .cta-inner { padding:50px 28px; }
  .cta-title { font-size:26px; }
  .footer-top { gap:28px; }
  .footer-links { grid-template-columns:1fr 1fr; gap:24px; }
}
@media (max-width:520px) {
  .container { padding:0 16px; }
  .brand-text { font-size:17px; }
  .brand-logo { width:38px; height:38px; font-size:17px; }
  .header-cta { display:none; }
  .breadcrumb-section { padding-top:14px; }
  .article-card { padding:18px; border-radius:14px; }
  .article-head h1 { font-size:22px; }
  .article-meta { gap:10px; font-size:13px; flex-direction:column; }
  .article-body { font-size:15px; }
  .article-body h2 { font-size:20px; }
  .stats-wrap { border-radius:16px; padding:32px 16px; }
  .stat-num { font-size:26px; }
  .stats-grid { grid-template-columns:1fr 1fr; gap:18px; }
  .stat-label { font-size:12px; }
  .section-title h2 { font-size:24px; }
  .related-content { padding:18px; }
  .faq-question { padding:18px 20px; font-size:14px; }
  .faq-answer p { padding:0 20px 20px; }
  .cta-inner { padding:36px 20px; }
  .cta-title { font-size:22px; }
  .cta-sub { font-size:14px; margin-bottom:24px; }
  .cta-btns .btn { padding:10px 20px; font-size:14px; }
  .footer-links { grid-template-columns:1fr; gap:18px; }
  .footer-bottom { flex-direction:column; text-align:center; justify-content:center; }
}
@media (max-width:360px) {
  .brand-text { font-size:15px; }
  .main-nav li a { font-size:13px; padding:6px 10px; }
}

/* roulang page: category1 */
:root {
      --primary: #0b1f3a;
      --primary-light: #16325c;
      --accent: #d4a853;
      --accent-light: #e8c87a;
      --bg: #f5f7fb;
      --white: #ffffff;
      --text: #1a2b45;
      --text-muted: #5c6b82;
      --border: #e3e9f2;
      --radius: 16px;
      --radius-sm: 10px;
      --shadow: 0 8px 30px rgba(10, 30, 60, 0.08);
      --shadow-lg: 0 18px 50px rgba(10, 30, 60, 0.12);
      --transition: 0.3s ease;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.7;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }

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

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

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

    button,
    input {
      font-family: inherit;
      border: none;
      outline: none;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
      position: relative;
      z-index: 2;
    }

    .row {
      max-width: 1200px;
    }

    /* Header */
    .site-header {
      background: #fff;
      border-bottom: 1px solid var(--border);
      box-shadow: 0 2px 12px rgba(10, 30, 60, 0.06);
      position: sticky;
      top: 0;
      z-index: 999;
    }

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

    .site-brand {
      display: flex;
      align-items: center;
      flex-shrink: 0;
    }

    .brand-logo {
      width: 42px;
      height: 42px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--primary), var(--primary-light));
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
      font-size: 18px;
      margin-right: 12px;
      box-shadow: 0 6px 14px rgba(11, 31, 58, 0.22);
    }

    .brand-text {
      font-size: 20px;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: 0.5px;
    }

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

    .main-nav ul {
      display: flex;
      gap: 8px;
      margin: 0;
    }

    .main-nav a {
      display: inline-block;
      padding: 10px 20px;
      border-radius: 999px;
      font-size: 15px;
      font-weight: 600;
      color: var(--text);
      transition: all 0.25s ease;
    }

    .main-nav a:hover {
      background: var(--bg);
      color: var(--primary);
    }

    .main-nav a.active {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 6px 16px rgba(11, 31, 58, 0.22);
    }

    .header-tools {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .search-box {
      display: flex;
      align-items: center;
      background: var(--bg);
      border: 1px solid transparent;
      border-radius: 999px;
      padding: 0 16px;
      height: 40px;
      transition: all 0.25s ease;
    }

    .search-box i {
      color: var(--text-muted);
      font-size: 14px;
      margin-right: 8px;
    }

    .search-box input {
      background: transparent;
      border: none;
      outline: none;
      width: 130px;
      font-size: 14px;
      color: var(--text);
    }

    .search-box:focus-within {
      background: #fff;
      border-color: var(--accent);
      box-shadow: 0 0 0 4px rgba(212, 168, 83, 0.14);
    }

    .search-box input::placeholder {
      color: #a3b0c2;
    }

    .menu-toggle {
      display: none;
      background: transparent;
      border: 1px solid var(--border);
      border-radius: 10px;
      width: 40px;
      height: 40px;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      color: var(--primary);
      cursor: pointer;
      transition: background 0.2s ease;
    }

    .menu-toggle:hover {
      background: var(--bg);
    }

    /* Buttons */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 28px;
      border-radius: 12px;
      font-size: 15px;
      font-weight: 700;
      transition: all 0.3s ease;
      cursor: pointer;
      border: none;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary), var(--primary-light));
      color: #fff;
      box-shadow: 0 8px 20px rgba(11, 31, 58, 0.2);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(11, 31, 58, 0.3);
      color: #fff;
    }

    .btn-accent {
      background: linear-gradient(135deg, var(--accent), var(--accent-light));
      color: var(--primary);
      box-shadow: 0 8px 20px rgba(212, 168, 83, 0.35);
    }

    .btn-accent:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(212, 168, 83, 0.5);
      color: var(--primary);
    }

    .btn-outline {
      background: transparent;
      border: 2px solid rgba(255, 255, 255, 0.6);
      color: #fff;
    }

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

    .btn-outline-light {
      background: transparent;
      border: 2px solid rgba(255, 255, 255, 0.5);
      color: #fff;
    }

    .btn-outline-light:hover {
      background: rgba(255, 255, 255, 0.12);
      border-color: #fff;
      color: #fff;
    }

    .header-cta {
      padding: 10px 22px;
      font-size: 14px;
      border-radius: 10px;
    }

    /* Hero */
    .page-hero {
      position: relative;
      background: linear-gradient(135deg, rgba(11, 31, 58, 0.92), rgba(22, 50, 92, 0.82)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
      padding: 110px 0 90px;
      text-align: center;
      color: #fff;
      overflow: hidden;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.18);
      border-radius: 999px;
      padding: 8px 20px;
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 22px;
      backdrop-filter: blur(6px);
    }

    .page-hero h1 {
      font-size: clamp(34px, 5vw, 54px);
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 18px;
      letter-spacing: 1px;
    }

    .page-hero p {
      font-size: 18px;
      max-width: 680px;
      margin: 0 auto 32px;
      color: rgba(255, 255, 255, 0.82);
      line-height: 1.8;
    }

    .hero-actions {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    .hero-meta {
      display: flex;
      justify-content: center;
      gap: 26px;
      flex-wrap: wrap;
      margin-top: 40px;
      font-size: 14px;
      color: rgba(255, 255, 255, 0.75);
    }

    .hero-meta span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .hero-meta i {
      color: var(--accent);
    }

    /* Section base */
    .section {
      padding: 90px 0;
    }

    .section-head {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 52px;
    }

    .section-label {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 3px;
      color: var(--accent);
      text-transform: uppercase;
      margin-bottom: 12px;
    }

    .section-label.light {
      color: var(--accent-light);
    }

    .section-title {
      font-size: clamp(26px, 3vw, 38px);
      font-weight: 800;
      color: var(--primary);
      line-height: 1.3;
      margin-bottom: 14px;
    }

    .section-title.left {
      text-align: left;
    }

    .section-title.light {
      color: #fff;
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
    }

    /* Intro */
    .intro-section {
      background: #fff;
    }

    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 64px;
      align-items: center;
    }

    .intro-media {
      position: relative;
    }

    .intro-media img {
      border-radius: 20px;
      box-shadow: var(--shadow-lg);
      width: 100%;
      height: 420px;
      object-fit: cover;
    }

    .media-card {
      position: absolute;
      left: 24px;
      bottom: 24px;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(10px);
      border-radius: 14px;
      padding: 12px 20px;
      font-size: 14px;
      font-weight: 700;
      color: var(--primary);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    }

    .intro-content p {
      color: var(--text-muted);
      font-size: 15px;
      line-height: 1.9;
      margin-bottom: 16px;
    }

    .intro-stats {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 32px;
    }

    .stat-card {
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: 20px 14px;
      text-align: center;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .stat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow);
    }

    .stat-number {
      font-size: 28px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.2;
    }

    .stat-label {
      font-size: 13px;
      color: var(--text-muted);
      margin-top: 6px;
    }

    /* Steps */
    .steps-section {
      background: var(--bg);
    }

    .step-col,
    .feature-col {
      margin-bottom: 24px;
    }

    .step-card {
      position: relative;
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 18px;
      padding: 32px 26px;
      transition: all 0.3s ease;
      overflow: hidden;
      height: 100%;
    }

    .step-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
      border-color: transparent;
    }

    .step-num {
      position: absolute;
      top: 16px;
      right: 22px;
      font-size: 46px;
      font-weight: 800;
      line-height: 1;
      color: rgba(11, 31, 58, 0.08);
    }

    .step-badge {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      background: linear-gradient(135deg, var(--accent), var(--accent-light));
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 20px;
      box-shadow: 0 8px 18px rgba(212, 168, 83, 0.3);
    }

    .step-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 8px;
    }

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

    /* Features */
    .features-section {
      background: #fff;
    }

    .feature-card {
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: 18px;
      padding: 30px;
      transition: all 0.3s ease;
      height: 100%;
    }

    .feature-card:hover {
      background: #fff;
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
      border-color: transparent;
    }

    .feature-icon {
      width: 54px;
      height: 54px;
      border-radius: 14px;
      background: linear-gradient(135deg, var(--primary), var(--primary-light));
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 18px;
      box-shadow: 0 8px 18px rgba(11, 31, 58, 0.2);
    }

    .feature-card h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 10px;
    }

    .feature-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 14px;
    }

    .card-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .card-tags span {
      background: rgba(11, 31, 58, 0.06);
      color: var(--primary);
      border-radius: 999px;
      font-size: 12px;
      font-weight: 600;
      padding: 5px 12px;
    }

    /* Security */
    .security-section {
      background: var(--bg);
    }

    .security-wrap {
      position: relative;
      background: linear-gradient(135deg, rgba(11, 31, 58, 0.92), rgba(20, 45, 82, 0.88)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
      border-radius: 24px;
      padding: 70px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
      color: #fff;
      overflow: hidden;
    }

    .security-wrap::after {
      content: '';
      position: absolute;
      width: 320px;
      height: 320px;
      border-radius: 50%;
      background: rgba(212, 168, 83, 0.12);
      top: -80px;
      right: -80px;
      z-index: 1;
    }

    .sec-intro {
      position: relative;
      z-index: 2;
    }

    .sec-intro p {
      color: rgba(255, 255, 255, 0.8);
      font-size: 15px;
      line-height: 1.8;
      margin-bottom: 24px;
    }

    .check-list {
      position: relative;
      z-index: 2;
    }

    .check-list li {
      position: relative;
      padding: 16px 18px 16px 48px;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 14px;
      margin-bottom: 14px;
      color: rgba(255, 255, 255, 0.92);
      font-size: 15px;
      line-height: 1.6;
      backdrop-filter: blur(4px);
    }

    .check-list li i {
      position: absolute;
      left: 18px;
      top: 18px;
      color: var(--accent);
      font-size: 16px;
    }

    /* FAQ */
    .faq-section {
      background: #fff;
    }

    .faq-wrap {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-wrap .accordion {
      background: transparent;
      border: none;
      border-radius: 0;
      box-shadow: none;
    }

    .faq-wrap .accordion-item {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 16px;
      margin-bottom: 16px;
      overflow: hidden;
      transition: box-shadow 0.3s ease, border-color 0.3s ease;
    }

    .faq-wrap .accordion-item:hover {
      box-shadow: var(--shadow);
    }

    .faq-wrap .accordion-item.is-active {
      border-color: var(--accent);
      box-shadow: 0 8px 30px rgba(212, 168, 83, 0.12);
    }

    .faq-wrap .accordion-title {
      background: #fff;
      color: var(--text);
      font-size: 16px;
      font-weight: 600;
      padding: 22px 56px 22px 30px;
      position: relative;
      border: none;
      transition: background 0.2s ease;
    }

    .faq-wrap .accordion-title::before {
      display: none;
    }

    .faq-wrap .accordion-title::after {
      content: '+';
      position: absolute;
      right: 24px;
      top: 50%;
      transform: translateY(-50%);
      font-size: 22px;
      font-weight: 400;
      color: var(--accent);
      transition: color 0.2s ease;
    }

    .faq-wrap .accordion-item.is-active .accordion-title::after {
      content: '–';
    }

    .faq-wrap .accordion-title:hover {
      background: #fafbfe;
    }

    .faq-wrap .accordion-title:focus {
      box-shadow: none;
    }

    .faq-wrap .accordion-content {
      border: none;
      background: #fafbfe;
      padding: 4px 30px 24px 30px;
      color: var(--text-muted);
      font-size: 15px;
      line-height: 1.8;
    }

    /* CTA */
    .cta-section {
      background: var(--bg);
    }

    .cta-wrap {
      position: relative;
      background: linear-gradient(135deg, rgba(11, 31, 58, 0.94), rgba(35, 55, 95, 0.9)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
      border-radius: 24px;
      padding: 70px;
      text-align: center;
      color: #fff;
      overflow: hidden;
    }

    .cta-wrap h2 {
      font-size: clamp(26px, 3vw, 38px);
      font-weight: 800;
      margin-bottom: 14px;
    }

    .cta-wrap p {
      max-width: 640px;
      margin: 0 auto 28px;
      color: rgba(255, 255, 255, 0.82);
      font-size: 16px;
      line-height: 1.8;
    }

    .cta-actions {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 18px;
      flex-wrap: wrap;
    }

    .cta-note {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: rgba(255, 255, 255, 0.75);
    }

    /* Footer */
    .site-footer {
      background: var(--primary);
      color: rgba(255, 255, 255, 0.75);
      padding: 60px 0 0;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1.4fr 2fr;
      gap: 60px;
      padding-bottom: 40px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .footer-brand .site-brand .brand-text {
      color: #fff;
    }

    .footer-brand .site-brand .brand-text span {
      color: var(--accent-light);
    }

    .footer-brand .site-brand .brand-logo {
      background: rgba(255, 255, 255, 0.12);
    }

    .footer-brand p {
      font-size: 14px;
      line-height: 1.8;
      margin-top: 20px;
      color: rgba(255, 255, 255, 0.55);
    }

    .footer-links {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }

    .footer-links h4 {
      color: #fff;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 18px;
    }

    .footer-links li {
      margin-bottom: 12px;
    }

    .footer-links a {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.6);
      transition: color 0.2s ease;
    }

    .footer-links a:hover {
      color: var(--accent-light);
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px 0 22px;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.4);
    }

    /* Responsive */
    @media (max-width: 1100px) {
      .search-box {
        display: none;
      }

      .header-cta {
        padding: 9px 16px;
        font-size: 13px;
      }

      .brand-text {
        font-size: 18px;
      }

      .main-nav a {
        padding: 8px 14px;
        font-size: 14px;
      }
    }

    @media (max-width: 1024px) {
      .security-wrap {
        grid-template-columns: 1fr;
        gap: 36px;
        padding: 50px;
      }

      .intro-grid {
        gap: 40px;
      }

      .intro-media img {
        height: 360px;
      }
    }

    @media (max-width: 768px) {
      .header-inner {
        height: auto;
        padding: 12px 0;
        flex-wrap: wrap;
      }

      .header-tools {
        margin-left: auto;
      }

      .main-nav {
        order: 3;
        flex-basis: 100%;
        display: none;
        flex-direction: column;
        padding: 12px 0 0;
      }

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

      .main-nav ul {
        flex-direction: column;
        gap: 4px;
      }

      .main-nav a {
        display: block;
        padding: 12px 16px;
      }

      .menu-toggle {
        display: flex;
      }

      .page-hero {
        padding: 80px 0 60px;
      }

      .page-hero h1 {
        font-size: 32px;
      }

      .hero-meta {
        gap: 14px;
      }

      .section {
        padding: 60px 0;
      }

      .section-head {
        margin-bottom: 36px;
      }

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

      .intro-media img {
        height: 280px;
      }

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

      .security-wrap {
        padding: 36px 24px;
      }

      .cta-wrap {
        padding: 40px 24px;
      }

      .footer-top {
        grid-template-columns: 1fr;
        gap: 40px;
      }

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

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

      .brand-text {
        font-size: 16px;
      }

      .brand-logo {
        width: 36px;
        height: 36px;
        font-size: 16px;
        margin-right: 8px;
      }

      .header-cta {
        padding: 8px 14px;
        font-size: 13px;
      }

      .page-hero h1 {
        font-size: 28px;
      }

      .page-hero p {
        font-size: 16px;
      }

      .hero-actions .btn {
        padding: 10px 22px;
        font-size: 14px;
      }

      .intro-stats {
        grid-template-columns: 1fr 1fr;
      }

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

      .footer-bottom {
        flex-direction: column;
        gap: 6px;
        text-align: center;
      }

      .faq-wrap .accordion-title {
        padding: 18px 46px 18px 20px;
        font-size: 15px;
      }

      .faq-wrap .accordion-content {
        padding: 4px 20px 18px 20px;
      }
    }