/* roulang page: index */
:root {
  --primary: #0d1b3e;
  --primary-2: #16294d;
  --bg-deep: #0a1428;
  --accent: #b9924e;
  --accent-light: #e8c97e;
  --bg: #f4f6fb;
  --card: #ffffff;
  --text: #191f2b;
  --text-weak: #5c6b82;
  --border: #e3e7f0;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 9px;
  --shadow-sm: 0 4px 16px rgba(13, 27, 62, 0.06);
  --shadow-md: 0 14px 34px rgba(13, 27, 62, 0.1);
  --shadow-lg: 0 28px 60px rgba(13, 27, 62, 0.16);
  --transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  --font-main: "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-main); font-size: 16px; line-height: 1.7; color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
input { font: inherit; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid rgba(185, 146, 78, 0.45); outline-offset: 2px; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-head { max-width: 720px; margin-bottom: 52px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-tag { display: inline-block; padding: 7px 16px; background: rgba(185, 146, 78, 0.12); color: var(--accent); border-radius: 999px; font-size: 13px; font-weight: 600; letter-spacing: 0.08em; }
.section-head h2 { font-size: 34px; line-height: 1.3; margin: 16px 0 12px; color: var(--primary); font-weight: 800; }
.section-head p { color: var(--text-weak); font-size: 16px; line-height: 1.8; }
.section-head.split { display: flex; justify-content: space-between; align-items: flex-end; max-width: none; gap: 24px; flex-wrap: wrap; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 32px; border-radius: var(--radius-sm); font-weight: 600; font-size: 15px; border: 1px solid transparent; transition: var(--transition); }
.btn-sm { padding: 9px 18px; font-size: 14px; }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 10px 24px rgba(185, 146, 78, 0.35); }
.btn-primary:hover { background: #a67d38; transform: translateY(-2px); box-shadow: 0 16px 32px rgba(185, 146, 78, 0.42); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 6px 16px rgba(185, 146, 78, 0.3); }
.btn-outline { border-color: rgba(255, 255, 255, 0.7); color: #fff; background: rgba(255, 255, 255, 0.08); backdrop-filter: blur(8px); }
.btn-outline:hover { background: rgba(255, 255, 255, 0.18); transform: translateY(-2px); }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--primary); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); background: rgba(185, 146, 78, 0.05); }

.tag { display: inline-block; padding: 4px 12px; background: rgba(185, 146, 78, 0.12); color: var(--accent); border-radius: 999px; font-size: 12px; font-weight: 600; }

.site-header { position: sticky; top: 0; z-index: 100; background: #fff; box-shadow: 0 2px 20px rgba(13, 27, 62, 0.07); }
.header-top { border-bottom: 1px solid var(--border); background: #fff; }
.header-flex { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.logo { font-size: 24px; font-weight: 800; color: var(--primary); display: inline-flex; align-items: baseline; letter-spacing: -0.01em; }
.logo em { font-style: normal; color: var(--accent); font-weight: 700; font-size: 20px; }
.logo:hover { opacity: 0.85; }
.header-search { display: flex; align-items: center; background: var(--bg); border: 1px solid var(--border); border-radius: 999px; padding: 0 5px 0 18px; height: 42px; width: 300px; transition: var(--transition); }
.header-search:focus-within { border-color: var(--accent); background: #fff; box-shadow: 0 0 0 4px rgba(185, 146, 78, 0.12); }
.header-search input { border: none; background: transparent; outline: none; width: 100%; font-size: 14px; color: var(--text); }
.header-search input::placeholder { color: #98a4b5; }
.header-search .search-btn { width: 32px; height: 32px; flex: none; border-radius: 50%; background: var(--primary); color: #fff; display: inline-flex; align-items: center; justify-content: center; transition: var(--transition); }
.header-search .search-btn:hover { background: var(--accent); }
.header-cta { flex: none; }
.main-nav { background: var(--primary); }
.nav-flex { display: flex; align-items: center; height: 50px; gap: 4px; }
.main-nav a { position: relative; display: inline-flex; align-items: center; padding: 0 22px; height: 50px; color: rgba(255, 255, 255, 0.75); font-size: 15px; font-weight: 500; white-space: nowrap; }
.main-nav a::after { content: ""; position: absolute; left: 20px; right: 20px; bottom: 0; height: 3px; background: var(--accent); border-radius: 3px 3px 0 0; transform: scaleX(0); transition: transform 0.3s; }
.main-nav a:hover, .main-nav a.active { color: #fff; }
.main-nav a:hover::after, .main-nav a.active::after { transform: scaleX(1); }

.hero { position: relative; min-height: 600px; display: flex; align-items: center; background-size: cover; background-position: center; }
.hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, rgba(10, 18, 38, 0.92) 0%, rgba(10, 18, 38, 0.68) 45%, rgba(10, 18, 38, 0.28) 100%); }
.hero-content { position: relative; z-index: 2; max-width: 740px; padding: 88px 0; }
.hero-badge { display: inline-block; background: rgba(185, 146, 78, 0.16); border: 1px solid rgba(185, 146, 78, 0.45); color: var(--accent-light); padding: 8px 18px; border-radius: 999px; font-size: 13px; letter-spacing: 0.1em; margin-bottom: 26px; }
.hero h1 { font-size: 50px; line-height: 1.22; color: #fff; font-weight: 800; margin-bottom: 22px; letter-spacing: -0.02em; }
.hero p { font-size: 17px; color: rgba(255, 255, 255, 0.82); margin-bottom: 34px; max-width: 560px; line-height: 1.85; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.stats { background: var(--primary); padding: 52px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.stat-card { text-align: center; padding: 12px 8px; }
.stat-num { font-size: 40px; font-weight: 800; color: var(--accent-light); display: block; line-height: 1.2; letter-spacing: -0.02em; }
.stat-label { color: rgba(255, 255, 255, 0.68); font-size: 14px; margin-top: 8px; display: block; }
.stat-card + .stat-card { border-left: 1px solid rgba(255, 255, 255, 0.1); }

.services { background: var(--bg); }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.service-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; transition: var(--transition); }
.service-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); border-color: rgba(185, 146, 78, 0.35); }
.service-card img { width: 100%; height: 200px; object-fit: cover; }
.card-body { padding: 24px 26px 28px; }
.card-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.card-index { font-size: 34px; font-weight: 800; color: rgba(13, 27, 62, 0.08); line-height: 1; }
.service-card h3 { font-size: 20px; color: var(--primary); margin-bottom: 8px; font-weight: 700; }
.service-card p { color: var(--text-weak); font-size: 15px; line-height: 1.8; }
.card-link { display: inline-block; margin-top: 16px; color: var(--accent); font-weight: 600; font-size: 14px; }
.card-link:hover { transform: translateX(4px); }

.category-section { padding-top: 0; }
.category-banner { position: relative; border-radius: var(--radius-lg); overflow: hidden; padding: 60px 64px; background-size: cover; background-position: center; display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; box-shadow: var(--shadow-md); }
.category-banner::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(13, 27, 62, 0.93) 0%, rgba(13, 27, 62, 0.6) 60%, rgba(13, 27, 62, 0.2) 100%); }
.category-banner > * { position: relative; z-index: 2; }
.category-text { max-width: 600px; }
.category-text .section-tag { background: rgba(185, 146, 78, 0.2); }
.category-text h2 { font-size: 30px; color: #fff; margin: 14px 0 10px; font-weight: 800; line-height: 1.3; }
.category-text p { color: rgba(255, 255, 255, 0.75); font-size: 16px; line-height: 1.8; }

.news-section { background: #fff; border-top: 1px solid var(--border); }
.news-list { display: grid; gap: 16px; }
.news-row { display: grid; grid-template-columns: 140px 1fr 120px; gap: 24px; align-items: center; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 22px 28px; transition: var(--transition); }
.news-row:hover { background: var(--card); border-color: var(--accent); box-shadow: var(--shadow-sm); transform: translateX(6px); }
.news-row-cat { background: rgba(185, 146, 78, 0.12); color: var(--accent); padding: 6px 14px; border-radius: 999px; font-size: 13px; font-weight: 600; text-align: center; white-space: nowrap; }
.news-row-body { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.news-row-title { font-size: 16px; font-weight: 600; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.news-row:hover .news-row-title { color: var(--primary); }
.news-row-desc { font-size: 14px; color: var(--text-weak); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.news-row-time { font-size: 13px; color: #8a96a9; text-align: right; white-space: nowrap; }
.news-row:first-child { background: var(--primary); }
.news-row:first-child .news-row-cat { background: rgba(185, 146, 78, 0.22); color: var(--accent-light); }
.news-row:first-child .news-row-title { color: #fff; font-size: 19px; }
.news-row:first-child .news-row-desc { color: rgba(255, 255, 255, 0.62); }
.news-row:first-child .news-row-time { color: rgba(255, 255, 255, 0.55); }
.news-row:first-child:hover { transform: translateX(6px); box-shadow: 0 14px 30px rgba(13, 27, 62, 0.2); }
.empty-tip { grid-column: 1 / -1; text-align: center; padding: 48px 24px; background: var(--bg); border-radius: var(--radius-md); border: 1px dashed var(--border); color: var(--text-weak); font-size: 15px; }

.process { background: var(--bg); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.process-step { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 36px 28px 32px; position: relative; transition: var(--transition); }
.process-step:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(185, 146, 78, 0.35); }
.step-num { font-size: 42px; font-weight: 800; line-height: 1; color: transparent; -webkit-text-stroke: 1.5px var(--accent); display: block; margin-bottom: 18px; }
.process-step h3 { font-size: 18px; color: var(--primary); margin-bottom: 8px; font-weight: 700; }
.process-step p { color: var(--text-weak); font-size: 14px; line-height: 1.75; }

.rank-section { background: var(--bg-deep); }
.rank-section .section-head h2 { color: #fff; }
.rank-section .section-head p { color: rgba(255, 255, 255, 0.6); }
.rank-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.rank-card { position: relative; background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.1); border-radius: var(--radius-lg); padding: 34px 30px; transition: var(--transition); }
.rank-card:hover { transform: translateY(-6px); background: rgba(255, 255, 255, 0.09); }
.rank-card.featured { background: linear-gradient(160deg, rgba(185, 146, 78, 0.18), rgba(255, 255, 255, 0.05)); border-color: rgba(185, 146, 78, 0.45); }
.rank-tag { position: absolute; top: 24px; right: 24px; background: rgba(185, 146, 78, 0.2); color: var(--accent-light); padding: 4px 12px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.rank-num { font-size: 44px; font-weight: 800; color: var(--accent); line-height: 1.1; display: block; margin-bottom: 14px; }
.rank-card h3 { color: #fff; font-size: 18px; margin-bottom: 16px; }
.rank-card ul { display: grid; gap: 8px; }
.rank-card li { color: rgba(255, 255, 255, 0.65); font-size: 14px; padding-left: 18px; position: relative; }
.rank-card li::before { content: "◆"; position: absolute; left: 0; font-size: 10px; color: var(--accent); top: 3px; }

.faq { background: #fff; }
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius-md); margin-bottom: 14px; background: var(--card); overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: rgba(185, 146, 78, 0.4); }
.faq-item.open { border-color: rgba(185, 146, 78, 0.5); box-shadow: var(--shadow-sm); }
.faq-q { width: 100%; text-align: left; padding: 22px 28px; font-weight: 600; font-size: 16px; color: var(--text); display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.faq-q::after { content: "+"; font-size: 26px; font-weight: 400; color: var(--accent); flex: none; transition: transform 0.3s; }
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a { padding: 0 28px 24px; color: var(--text-weak); font-size: 15px; line-height: 1.85; display: none; }
.faq-item.open .faq-a { display: block; }

.cta { position: relative; padding: 100px 0; background-size: cover; background-position: center; text-align: center; }
.cta::before { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(10, 18, 38, 0.88), rgba(10, 18, 38, 0.78)); }
.cta .container { position: relative; z-index: 2; }
.cta h2 { color: #fff; font-size: 38px; font-weight: 800; margin-bottom: 16px; }
.cta p { color: rgba(255, 255, 255, 0.75); max-width: 620px; margin: 0 auto 36px; font-size: 16px; line-height: 1.8; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

.site-footer { background: var(--bg-deep); color: rgba(255, 255, 255, 0.7); padding-top: 68px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; padding-bottom: 48px; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.footer-logo { font-size: 26px; font-weight: 800; color: #fff; margin-bottom: 14px; }
.footer-logo em { font-style: normal; color: var(--accent); }
.footer-about p { font-size: 14px; color: rgba(255, 255, 255, 0.52); line-height: 1.85; max-width: 360px; }
.footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 18px; font-weight: 600; }
.footer-col a, .footer-col span { display: block; padding: 6px 0; font-size: 14px; color: rgba(255, 255, 255, 0.52); transition: color 0.25s; }
.footer-col a:hover { color: var(--accent-light); }
.footer-bottom { padding: 22px 0; text-align: center; font-size: 13px; color: rgba(255, 255, 255, 0.38); }

@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .rank-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .stat-card + .stat-card { border-left: none; }
  .category-banner { padding: 48px 40px; }
  .header-search { width: 220px; }
  .news-row, .news-row:first-child { grid-template-columns: 110px 1fr; padding: 20px 22px; }
  .news-row-time, .news-row:first-child .news-row-time { grid-column: 2; text-align: left; }
}

@media (max-width: 768px) {
  .section { padding: 72px 0; }
  .hero { min-height: 500px; }
  .hero h1 { font-size: 36px; }
  .hero-content { padding: 64px 0; }
  .header-search { display: none; }
  .header-flex { height: 64px; }
  .nav-flex { overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
  .nav-flex::-webkit-scrollbar { display: none; }
  .main-nav a { padding: 0 16px; }
  .services-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .rank-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .process-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .section-head h2 { font-size: 28px; }
  .cta h2 { font-size: 30px; }
  .cta { padding: 76px 0; }
  .category-banner { padding: 40px 28px; flex-direction: column; align-items: flex-start; }
  .category-text h2 { font-size: 24px; }
  .news-row, .news-row:first-child { grid-template-columns: 1fr; gap: 10px; }
  .news-row-time, .news-row:first-child .news-row-time { grid-column: 1; }
}

@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .hero h1 { font-size: 30px; }
  .hero p { font-size: 15px; }
  .hero-badge { font-size: 12px; }
  .hero-actions .btn { width: 100%; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .stat-num { font-size: 30px; }
  .section-head h2 { font-size: 24px; }
  .logo { font-size: 20px; }
  .logo em { font-size: 17px; }
  .header-cta { font-size: 13px; padding: 8px 14px; }
  .category-banner { padding: 32px 22px; }
  .rank-card { padding: 28px 24px; }
  .faq-q { padding: 18px 20px; font-size: 15px; }
  .faq-a { padding: 0 20px 20px; }
}

:root {
  --primary: #0d1b3e;
  --primary-2: #16294d;
  --bg-deep: #0a1428;
  --accent: #b9924e;
  --accent-light: #e8c97e;
  --bg: #f4f6fb;
  --card: #ffffff;
  --text: #191f2b;
  --text-weak: #5c6b82;
  --border: #e3e7f0;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 9px;
  --shadow-sm: 0 4px 16px rgba(13, 27, 62, 0.06);
  --shadow-md: 0 14px 34px rgba(13, 27, 62, 0.1);
  --shadow-lg: 0 28px 60px rgba(13, 27, 62, 0.16);
  --transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  --font-main: "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-main); font-size: 16px; line-height: 1.7; color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
input { font: inherit; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid rgba(185, 146, 78, 0.45); outline-offset: 2px; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 32px; border-radius: var(--radius-sm); font-weight: 600; font-size: 15px; border: 1px solid transparent; transition: var(--transition); }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 10px 24px rgba(185, 146, 78, 0.35); }
.btn-primary:hover { background: #a67d38; transform: translateY(-2px); box-shadow: 0 16px 32px rgba(185, 146, 78, 0.42); }
.btn-outline { border-color: rgba(255, 255, 255, 0.7); color: #fff; background: rgba(255, 255, 255, 0.08); backdrop-filter: blur(8px); }
.btn-outline:hover { background: rgba(255, 255, 255, 0.18); transform: translateY(-2px); }
.section-tag { display: inline-block; padding: 7px 16px; background: rgba(185, 146, 78, 0.12); color: var(--accent); border-radius: 999px; font-size: 13px; font-weight: 600; letter-spacing: 0.08em; }

.site-header { position: sticky; top: 0; z-index: 100; background: #fff; box-shadow: 0 2px 20px rgba(13, 27, 62, 0.07); }
.header-top { border-bottom: 1px solid var(--border); background: #fff; }
.header-flex { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.logo { font-size: 24px; font-weight: 800; color: var(--primary); display: inline-flex; align-items: baseline; letter-spacing: -0.01em; }
.logo em { font-style: normal; color: var(--accent); font-weight: 700; font-size: 20px; }
.logo:hover { opacity: 0.85; }
.header-search { display: flex; align-items: center; background: var(--bg); border: 1px solid var(--border); border-radius: 999px; padding: 0 5px 0 18px; height: 42px; width: 300px; transition: var(--transition); }
.header-search:focus-within { border-color: var(--accent); background: #fff; box-shadow: 0 0 0 4px rgba(185, 146, 78, 0.12); }
.header-search input { border: none; background: transparent; outline: none; width: 100%; font-size: 14px; color: var(--text); }
.header-search input::placeholder { color: #98a4b5; }
.header-search .search-btn { width: 32px; height: 32px; flex: none; border-radius: 50%; background: var(--primary); color: #fff; display: inline-flex; align-items: center; justify-content: center; transition: var(--transition); }
.header-search .search-btn:hover { background: var(--accent); }
.header-cta { flex: none; }
.main-nav { background: var(--primary); }
.nav-flex { display: flex; align-items: center; height: 50px; gap: 4px; }
.main-nav a { position: relative; display: inline-flex; align-items: center; padding: 0 22px; height: 50px; color: rgba(255, 255, 255, 0.75); font-size: 15px; font-weight: 500; white-space: nowrap; }
.main-nav a::after { content: ""; position: absolute; left: 20px; right: 20px; bottom: 0; height: 3px; background: var(--accent); border-radius: 3px 3px 0 0; transform: scaleX(0); transition: transform 0.3s; }
.main-nav a:hover, .main-nav a.active { color: #fff; }
.main-nav a:hover::after, .main-nav a.active::after { transform: scaleX(1); }

.breadcrumb { background: #fff; border-bottom: 1px solid var(--border); padding: 16px 0; }
.breadcrumb-inner { font-size: 14px; color: var(--text-weak); display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.breadcrumb-inner a { color: var(--text-weak); }
.breadcrumb-inner a:hover { color: var(--accent); }
.breadcrumb-inner .sep { color: #c2cbd9; }

.article-page-main { background: #fff; }
.article-wrap { max-width: 900px; }
.article-head { padding: 56px 0 32px; text-align: center; }
.article-cat { display: inline-block; padding: 6px 16px; background: rgba(185, 146, 78, 0.12); color: var(--accent); border-radius: 999px; font-size: 13px; font-weight: 600; margin-bottom: 18px; }
.article-head h1 { font-size: 36px; line-height: 1.35; color: var(--primary); font-weight: 800; margin-bottom: 16px; letter-spacing: -0.01em; }
.article-meta { color: var(--text-weak); font-size: 14px; display: flex; justify-content: center; gap: 24px; flex-wrap: wrap; }
.article-divider { border: none; border-top: 1px solid var(--border); max-width: 900px; margin: 0 auto; }
.article-content { padding: 48px 0 0; max-width: 860px; margin: 0 auto; }
.article-content p { margin-bottom: 22px; font-size: 16px; line-height: 2; color: #2a3446; }
.article-content h2 { font-size: 24px; color: var(--primary); margin: 40px 0 16px; font-weight: 700; }
.article-content h3 { font-size: 20px; color: var(--primary); margin: 32px 0 12px; font-weight: 700; }
.article-content img { border-radius: var(--radius-md); margin: 24px 0; }
.article-content ul, .article-content ol { margin: 16px 0 24px; padding-left: 24px; }
.article-content li { margin-bottom: 8px; line-height: 1.9; }
.article-content blockquote { border-left: 4px solid var(--accent); background: var(--bg); padding: 18px 22px; border-radius: 0 10px 10px 0; margin: 24px 0; color: var(--text-weak); }
.article-back { text-align: center; padding: 48px 0 72px; display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

.cta { position: relative; padding: 90px 0; background-size: cover; background-position: center; text-align: center; }
.cta::before { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(10, 18, 38, 0.88), rgba(10, 18, 38, 0.78)); }
.cta .container { position: relative; z-index: 2; }
.cta h2 { color: #fff; font-size: 34px; font-weight: 800; margin-bottom: 14px; }
.cta p { color: rgba(255, 255, 255, 0.75); max-width: 620px; margin: 0 auto 32px; font-size: 16px; line-height: 1.8; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

.not-found-card { text-align: center; padding: 120px 24px; background: #fff; }
.not-found-card h1 { font-size: 34px; color: var(--primary); margin-bottom: 14px; font-weight: 800; }
.not-found-card p { color: var(--text-weak); margin-bottom: 30px; }
.not-found-card .btn { display: inline-flex; }

.site-footer { background: var(--bg-deep); color: rgba(255, 255, 255, 0.7); padding-top: 68px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; padding-bottom: 48px; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.footer-logo { font-size: 26px; font-weight: 800; color: #fff; margin-bottom: 14px; }
.footer-logo em { font-style: normal; color: var(--accent); }
.footer-about p { font-size: 14px; color: rgba(255, 255, 255, 0.52); line-height: 1.85; max-width: 360px; }
.footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 18px; font-weight: 600; }
.footer-col a, .footer-col span { display: block; padding: 6px 0; font-size: 14px; color: rgba(255, 255, 255, 0.52); transition: color 0.25s; }
.footer-col a:hover { color: var(--accent-light); }
.footer-bottom { padding: 22px 0; text-align: center; font-size: 13px; color: rgba(255, 255, 255, 0.38); }

@media (max-width: 1024px) {
  .header-search { width: 220px; }
  .article-head h1 { font-size: 32px; }
}
@media (max-width: 768px) {
  .header-search { display: none; }
  .header-flex { height: 64px; }
  .nav-flex { overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
  .nav-flex::-webkit-scrollbar { display: none; }
  .main-nav a { padding: 0 16px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .article-head { padding: 40px 0 24px; }
  .article-head h1 { font-size: 26px; }
  .article-content { padding-top: 36px; }
  .cta h2 { font-size: 28px; }
  .cta { padding: 72px 0; }
}
@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .logo { font-size: 20px; }
  .logo em { font-size: 17px; }
  .header-cta { font-size: 13px; padding: 8px 14px; }
  .article-head h1 { font-size: 22px; }
  .article-meta { gap: 12px; font-size: 13px; }
  .article-content p { font-size: 15px; }
  .breadcrumb-inner { font-size: 13px; }
  .cta-actions .btn { width: 100%; }
}

:root {
  --primary: #0d1b3e;
  --primary-2: #16294d;
  --bg-deep: #0a1428;
  --accent: #b9924e;
  --accent-light: #e8c97e;
  --bg: #f4f6fb;
  --card: #ffffff;
  --text: #191f2b;
  --text-weak: #5c6b82;
  --border: #e3e7f0;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 9px;
  --shadow-sm: 0 4px 16px rgba(13, 27, 62, 0.06);
  --shadow-md: 0 14px 34px rgba(13, 27, 62, 0.1);
  --shadow-lg: 0 28px 60px rgba(13, 27, 62, 0.16);
  --transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  --font-main: "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-main); font-size: 16px; line-height: 1.7; color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
input { font: inherit; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid rgba(185, 146, 78, 0.45); outline-offset: 2px; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-head { max-width: 720px; margin-bottom: 52px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-tag { display: inline-block; padding: 7px 16px; background: rgba(185, 146, 78, 0.12); color: var(--accent); border-radius: 999px; font-size: 13px; font-weight: 600; letter-spacing: 0.08em; }
.section-head h2 { font-size: 34px; line-height: 1.3; margin: 16px 0 12px; color: var(--primary); font-weight: 800; }
.section-head p { color: var(--text-weak); font-size: 16px; line-height: 1.8; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 32px; border-radius: var(--radius-sm); font-weight: 600; font-size: 15px; border: 1px solid transparent; transition: var(--transition); }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 10px 24px rgba(185, 146, 78, 0.35); }
.btn-primary:hover { background: #a67d38; transform: translateY(-2px); box-shadow: 0 16px 32px rgba(185, 146, 78, 0.42); }
.btn-outline { border-color: rgba(255, 255, 255, 0.7); color: #fff; background: rgba(255, 255, 255, 0.08); backdrop-filter: blur(8px); }
.btn-outline:hover { background: rgba(255, 255, 255, 0.18); transform: translateY(-2px); }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--primary); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); background: rgba(185, 146, 78, 0.05); }

.site-header { position: sticky; top: 0; z-index: 100; background: #fff; box-shadow: 0 2px 20px rgba(13, 27, 62, 0.07); }
.header-top { border-bottom: 1px solid var(--border); background: #fff; }
.header-flex { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.logo { font-size: 24px; font-weight: 800; color: var(--primary); display: inline-flex; align-items: baseline; letter-spacing: -0.01em; }
.logo em { font-style: normal; color: var(--accent); font-weight: 700; font-size: 20px; }
.logo:hover { opacity: 0.85; }
.header-search { display: flex; align-items: center; background: var(--bg); border: 1px solid var(--border); border-radius: 999px; padding: 0 5px 0 18px; height: 42px; width: 300px; transition: var(--transition); }
.header-search:focus-within { border-color: var(--accent); background: #fff; box-shadow: 0 0 0 4px rgba(185, 146, 78, 0.12); }
.header-search input { border: none; background: transparent; outline: none; width: 100%; font-size: 14px; color: var(--text); }
.header-search input::placeholder { color: #98a4b5; }
.header-search .search-btn { width: 32px; height: 32px; flex: none; border-radius: 50%; background: var(--primary); color: #fff; display: inline-flex; align-items: center; justify-content: center; transition: var(--transition); }
.header-search .search-btn:hover { background: var(--accent); }
.header-cta { flex: none; }
.main-nav { background: var(--primary); }
.nav-flex { display: flex; align-items: center; height: 50px; gap: 4px; }
.main-nav a { position: relative; display: inline-flex; align-items: center; padding: 0 22px; height: 50px; color: rgba(255, 255, 255, 0.75); font-size: 15px; font-weight: 500; white-space: nowrap; }
.main-nav a::after { content: ""; position: absolute; left: 20px; right: 20px; bottom: 0; height: 3px; background: var(--accent); border-radius: 3px 3px 0 0; transform: scaleX(0); transition: transform 0.3s; }
.main-nav a:hover, .main-nav a.active { color: #fff; }
.main-nav a:hover::after, .main-nav a.active::after { transform: scaleX(1); }

.cat-hero { position: relative; min-height: 360px; display: flex; align-items: center; background-size: cover; background-position: center; }
.cat-hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, rgba(10, 18, 38, 0.93) 0%, rgba(10, 18, 38, 0.68) 50%, rgba(10, 18, 38, 0.3) 100%); }
.cat-hero-content { position: relative; z-index: 2; padding: 72px 0; }
.cat-hero .hero-badge { display: inline-block; background: rgba(185, 146, 78, 0.16); border: 1px solid rgba(185, 146, 78, 0.45); color: var(--accent-light); padding: 8px 18px; border-radius: 999px; font-size: 13px; letter-spacing: 0.1em; margin-bottom: 20px; }
.cat-hero h1 { font-size: 42px; color: #fff; font-weight: 800; margin-bottom: 14px; letter-spacing: -0.02em; }
.cat-hero p { color: rgba(255, 255, 255, 0.78); max-width: 640px; font-size: 16px; line-height: 1.85; }

.cat-intro { background: #fff; border-bottom: 1px solid var(--border); }
.cat-intro-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; padding: 44px 0; }
.cat-intro-item { display: flex; gap: 16px; align-items: flex-start; }
.cat-intro-item .icon { width: 46px; height: 46px; flex: none; border-radius: 12px; background: rgba(185, 146, 78, 0.12); color: var(--accent); display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: 700; }
.cat-intro-item h3 { font-size: 15px; color: var(--primary); margin-bottom: 4px; font-weight: 700; }
.cat-intro-item p { font-size: 13px; color: var(--text-weak); line-height: 1.7; }

.topics { background: var(--bg); }
.topic-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.topic-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; transition: var(--transition); }
.topic-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); border-color: rgba(185, 146, 78, 0.35); }
.topic-card img { height: 170px; width: 100%; object-fit: cover; }
.topic-body { padding: 24px; }
.topic-body .tag { display: inline-block; padding: 4px 12px; background: rgba(185, 146, 78, 0.12); color: var(--accent); border-radius: 999px; font-size: 12px; font-weight: 600; margin-bottom: 10px; }
.topic-body h3 { font-size: 18px; color: var(--primary); margin-bottom: 8px; font-weight: 700; }
.topic-body p { font-size: 14px; color: var(--text-weak); line-height: 1.75; }
.topic-body a { display: inline-block; margin-top: 12px; color: var(--accent); font-weight: 600; font-size: 14px; }

.cat-news { background: #fff; }
.cat-news .section-head.split { display: flex; justify-content: space-between; align-items: flex-end; max-width: none; gap: 24px; flex-wrap: wrap; }
.news-list { display: grid; gap: 16px; }
.news-row { display: grid; grid-template-columns: 140px 1fr 120px; gap: 24px; align-items: center; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 22px 28px; transition: var(--transition); }
.news-row:hover { background: var(--card); border-color: var(--accent); box-shadow: var(--shadow-sm); transform: translateX(6px); }
.news-row-cat { background: rgba(185, 146, 78, 0.12); color: var(--accent); padding: 6px 14px; border-radius: 999px; font-size: 13px; font-weight: 600; text-align: center; white-space: nowrap; }
.news-row-body { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.news-row-title { font-size: 16px; font-weight: 600; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.news-row:hover .news-row-title { color: var(--primary); }
.news-row-desc { font-size: 14px; color: var(--text-weak); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.news-row-time { font-size: 13px; color: #8a96a9; text-align: right; white-space: nowrap; }
.news-row:first-child { background: var(--primary); }
.news-row:first-child .news-row-cat { background: rgba(185, 146, 78, 0.22); color: var(--accent-light); }
.news-row:first-child .news-row-title { color: #fff; font-size: 19px; }
.news-row:first-child .news-row-desc { color: rgba(255, 255, 255, 0.62); }
.news-row:first-child .news-row-time { color: rgba(255, 255, 255, 0.55); }
.empty-tip { grid-column: 1 / -1; text-align: center; padding: 48px 24px; background: var(--bg); border-radius: var(--radius-md); border: 1px dashed var(--border); color: var(--text-weak); font-size: 15px; }

.value-strip { background: var(--primary); padding: 52px 0; }
.value-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; text-align: center; }
.value-num { font-size: 36px; font-weight: 800; color: var(--accent-light); display: block; line-height: 1.2; }
.value-label { color: rgba(255, 255, 255, 0.65); font-size: 14px; margin-top: 8px; display: block; }
.value-card + .value-card { border-left: 1px solid rgba(255, 255, 255, 0.1); }

.faq { background: #fff; }
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius-md); margin-bottom: 14px; background: var(--card); overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: rgba(185, 146, 78, 0.4); }
.faq-item.open { border-color: rgba(185, 146, 78, 0.5); box-shadow: var(--shadow-sm); }
.faq-q { width: 100%; text-align: left; padding: 22px 28px; font-weight: 600; font-size: 16px; color: var(--text); display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.faq-q::after { content: "+"; font-size: 26px; font-weight: 400; color: var(--accent); flex: none; transition: transform 0.3s; }
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a { padding: 0 28px 24px; color: var(--text-weak); font-size: 15px; line-height: 1.85; display: none; }
.faq-item.open .faq-a { display: block; }

.cta { position: relative; padding: 90px 0; background-size: cover; background-position: center; text-align: center; }
.cta::before { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(10, 18, 38, 0.88), rgba(10, 18, 38, 0.78)); }
.cta .container { position: relative; z-index: 2; }
.cta h2 { color: #fff; font-size: 34px; font-weight: 800; margin-bottom: 14px; }
.cta p { color: rgba(255, 255, 255, 0.75); max-width: 620px; margin: 0 auto 32px; font-size: 16px; line-height: 1.8; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

.site-footer { background: var(--bg-deep); color: rgba(255, 255, 255, 0.7); padding-top: 68px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; padding-bottom: 48px; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.footer-logo { font-size: 26px; font-weight: 800; color: #fff; margin-bottom: 14px; }
.footer-logo em { font-style: normal; color: var(--accent); }
.footer-about p { font-size: 14px; color: rgba(255, 255, 255, 0.52); line-height: 1.85; max-width: 360px; }
.footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 18px; font-weight: 600; }
.footer-col a, .footer-col span { display: block; padding: 6px 0; font-size: 14px; color: rgba(255, 255, 255, 0.52); transition: color 0.25s; }
.footer-col a:hover { color: var(--accent-light); }
.footer-bottom { padding: 22px 0; text-align: center; font-size: 13px; color: rgba(255, 255, 255, 0.38); }

@media (max-width: 1024px) {
  .topic-grid, .cat-intro-grid { grid-template-columns: repeat(2, 1fr); }
  .header-search { width: 220px; }
  .value-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .value-card + .value-card { border-left: none; }
  .news-row, .news-row:first-child { grid-template-columns: 110px 1fr; padding: 20px 22px; }
  .news-row-time, .news-row:first-child .news-row-time { grid-column: 2; text-align: left; }
}

@media (max-width: 768px) {
  .section { padding: 72px 0; }
  .header-search { display: none; }
  .header-flex { height: 64px; }
  .nav-flex { overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
  .nav-flex::-webkit-scrollbar { display: none; }
  .main-nav a { padding: 0 16px; }
  .topic-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .cat-intro-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; gap: 20px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .section-head h2 { font-size: 28px; }
  .cat-hero h1 { font-size: 32px; }
  .cat-hero-content { padding: 56px 0; }
  .cta h2 { font-size: 28px; }
  .cta { padding: 72px 0; }
  .news-row, .news-row:first-child { grid-template-columns: 1fr; gap: 10px; }
  .news-row-time, .news-row:first-child .news-row-time { grid-column: 1; }
}

@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .logo { font-size: 20px; }
  .logo em { font-size: 17px; }
  .header-cta { font-size: 13px; padding: 8px 14px; }
  .cat-hero h1 { font-size: 26px; }
  .cat-hero p { font-size: 14px; }
  .value-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .value-num { font-size: 28px; }
  .section-head h2 { font-size: 24px; }
  .faq-q { padding: 18px 20px; font-size: 15px; }
  .faq-a { padding: 0 20px 20px; }
  .cta-actions .btn { width: 100%; }
  .cat-intro-item { flex-direction: column; }
}

/* roulang page: article */
:root {
    --primary: #0c2233;
    --primary-2: #14405c;
    --accent: #c9a86a;
    --accent-2: #a8854a;
    --bg: #f5f3f0;
    --surface: #ffffff;
    --text: #1d2a35;
    --muted: #647580;
    --border: #e3ded6;
    --shadow-sm: 0 4px 16px rgba(12, 34, 51, .06);
    --shadow: 0 12px 40px rgba(12, 34, 51, .08);
    --shadow-lg: 0 24px 60px rgba(12, 34, 51, .14);
    --radius: 16px;
    --radius-sm: 10px;
    --transition: .25s ease;
  }

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

  html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
  }

  body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    font-size: 16px;
  }

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

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

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

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

  /* Header */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--surface);
    box-shadow: 0 2px 20px rgba(12, 34, 51, .05);
  }

  .header-top {
    border-bottom: 1px solid var(--border);
  }

  .header-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    min-height: 68px;
  }

  .logo {
    font-size: 1.45rem;
    font-weight: 800;
    letter-spacing: .5px;
    color: var(--primary);
    white-space: nowrap;
  }

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

  .header-search {
    flex: 0 1 360px;
    display: flex;
    align-items: center;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 50px;
    padding: 0 6px 0 18px;
    height: 40px;
    transition: box-shadow var(--transition), border-color var(--transition);
  }

  .header-search:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(201, 168, 106, .18);
  }

  .header-search input {
    flex: 1;
    min-width: 0;
    background: transparent;
    color: var(--text);
    font-size: .92rem;
  }

  .header-search input::placeholder {
    color: var(--muted);
  }

  .search-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    cursor: pointer;
    transition: background var(--transition), color var(--transition);
  }

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

  .header-cta {
    white-space: nowrap;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 50px;
    padding: 12px 28px;
    font-size: .95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    border: 1px solid transparent;
    line-height: 1.4;
  }

  .btn-sm {
    padding: 8px 20px;
    font-size: .88rem;
  }

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

  .btn-primary:hover {
    background: var(--primary-2);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
  }

  .btn-ghost {
    background: transparent;
    border-color: var(--border);
    color: var(--primary);
  }

  .btn-ghost:hover {
    border-color: var(--accent);
    color: var(--accent-2);
    background: rgba(201, 168, 106, .08);
  }

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

  .btn-accent:hover {
    background: var(--accent-2);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(201, 168, 106, .35);
  }

  .main-nav {
    background: var(--primary);
  }

  .nav-flex {
    display: flex;
    gap: 38px;
    min-height: 48px;
    align-items: center;
    overflow-x: auto;
    scrollbar-width: thin;
  }

  .main-nav a {
    color: rgba(255, 255, 255, .72);
    font-size: .92rem;
    font-weight: 600;
    padding: 0 2px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    border-bottom: 3px solid transparent;
    white-space: nowrap;
    transition: color var(--transition), border-color var(--transition);
  }

  .main-nav a:hover {
    color: #fff;
  }

  .main-nav a.active {
    color: #fff;
    border-bottom-color: var(--accent);
  }

  /* Article Banner */
  .article-banner {
    position: relative;
    padding: 84px 0 64px;
    background:
      linear-gradient(135deg, rgba(12, 34, 51, .94) 20%, rgba(20, 64, 92, .82) 80%),
      url('/assets/images/backpic/back-2.png') center / cover no-repeat;
    color: #fff;
    overflow: hidden;
  }

  .article-banner::after {
    content: '';
    position: absolute;
    right: -80px;
    top: -80px;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(201, 168, 106, .35), transparent 65%);
  }

  .banner-inner {
    position: relative;
    z-index: 2;
    max-width: 900px;
  }

  .breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: .9rem;
    color: rgba(255, 255, 255, .65);
    margin-bottom: 24px;
  }

  .breadcrumb a {
    color: rgba(255, 255, 255, .8);
    transition: color var(--transition);
  }

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

  .breadcrumb span {
    color: rgba(255, 255, 255, .4);
  }

  .banner-cat {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(201, 168, 106, .18);
    border: 1px solid rgba(201, 168, 106, .4);
    color: var(--accent);
    font-size: .82rem;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 50px;
    margin-bottom: 18px;
  }

  .banner-inner h1 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    line-height: 1.3;
    letter-spacing: .5px;
    margin-bottom: 18px;
  }

  .banner-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    font-size: .9rem;
    color: rgba(255, 255, 255, .55);
  }

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

  .banner-meta i {
    font-style: normal;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--accent);
  }

  /* Article Body */
  .article-section {
    padding: 64px 0;
  }

  .article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 40px;
    align-items: start;
  }

  .article-main {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 44px;
    border: 1px solid rgba(227, 222, 214, .6);
  }

  .article-content {
    font-size: 1.02rem;
    line-height: 1.9;
    color: #3a4754;
    word-break: break-word;
  }

  .article-content p {
    margin-bottom: 20px;
  }

  .article-content h2 {
    font-size: 1.4rem;
    color: var(--primary);
    margin: 32px 0 16px;
    padding-left: 14px;
    border-left: 4px solid var(--accent);
    line-height: 1.4;
  }

  .article-content h3 {
    font-size: 1.15rem;
    color: var(--primary);
    margin: 24px 0 12px;
    line-height: 1.5;
  }

  .article-content ul,
  .article-content ol {
    margin: 16px 0 20px 22px;
  }

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

  .article-content blockquote {
    border-left: 4px solid var(--accent);
    background: rgba(201, 168, 106, .08);
    padding: 16px 20px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 24px 0;
    color: var(--muted);
    font-style: normal;
  }

  .article-content img {
    border-radius: var(--radius-sm);
    margin: 24px 0;
  }

  .article-content a {
    color: var(--primary-2);
    border-bottom: 1px solid var(--accent);
    transition: color var(--transition), border-color var(--transition);
  }

  .article-content a:hover {
    color: var(--accent-2);
    border-bottom-color: var(--accent-2);
  }

  .article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
  }

  .tag {
    display: inline-flex;
    align-items: center;
    background: var(--bg);
    color: var(--primary);
    border: 1px solid var(--border);
    border-radius: 50px;
    padding: 6px 16px;
    font-size: .84rem;
    font-weight: 500;
    transition: all var(--transition);
  }

  .tag:hover {
    border-color: var(--accent);
    color: var(--accent-2);
    background: rgba(201, 168, 106, .08);
  }

  .article-divider {
    width: 40px;
    height: 4px;
    border-radius: 4px;
    background: var(--accent);
    margin: 36px 0 20px;
  }

  .article-author-box {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--bg);
    border-radius: var(--radius-sm);
    padding: 18px 20px;
    margin-top: 32px;
  }

  .author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
    flex-shrink: 0;
  }

  .author-info strong {
    display: block;
    color: var(--primary);
    font-size: .95rem;
  }

  .author-info span {
    font-size: .85rem;
    color: var(--muted);
  }

  .not-found {
    text-align: center;
    padding: 60px 20px;
  }

  .not-found .nf-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 2rem;
    color: var(--accent);
  }

  .not-found h2 {
    font-size: 1.6rem;
    color: var(--primary);
    margin-bottom: 12px;
  }

  .not-found p {
    color: var(--muted);
    margin-bottom: 28px;
  }

  /* Sidebar */
  .sidebar-sticky {
    position: sticky;
    top: 130px;
    display: flex;
    flex-direction: column;
    gap: 24px;
  }

  .widget {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 28px;
    border: 1px solid rgba(227, 222, 214, .6);
  }

  .widget h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border);
  }

  .widget h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 36px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
  }

  .side-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
  }

  .side-links a {
    display: block;
    padding: 10px 0;
    color: var(--muted);
    font-size: .92rem;
    border-bottom: 1px dashed var(--border);
    transition: color var(--transition), padding-left var(--transition);
  }

  .side-links a:hover {
    color: var(--accent-2);
    padding-left: 10px;
  }

  .side-links li:last-child a {
    border-bottom: none;
  }

  .cta-widget {
    background: linear-gradient(145deg, var(--primary), var(--primary-2));
    border: none;
    color: #fff;
    position: relative;
    overflow: hidden;
  }

  .cta-widget::after {
    content: '';
    position: absolute;
    right: -40px;
    bottom: -40px;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: rgba(201, 168, 106, .25);
  }

  .cta-widget h3 {
    color: #fff;
    border-bottom-color: rgba(255, 255, 255, .15);
  }

  .cta-widget h3::after {
    background: var(--accent);
  }

  .cta-widget p {
    color: rgba(255, 255, 255, .75);
    font-size: .88rem;
    margin-bottom: 22px;
    line-height: 1.8;
  }

  .cta-widget .btn {
    width: 100%;
    background: var(--accent);
    color: #fff;
  }

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

  /* Related */
  .related-section {
    padding: 70px 0;
    background: var(--bg);
  }

  .section-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 36px;
    flex-wrap: wrap;
  }

  .section-header .eyebrow {
    font-size: .85rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent-2);
    margin-bottom: 8px;
  }

  .section-header h2 {
    font-size: 1.8rem;
    color: var(--primary);
    line-height: 1.3;
    font-weight: 800;
  }

  .section-header .more-link {
    color: var(--primary);
    font-weight: 600;
    font-size: .9rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color var(--transition), gap var(--transition);
  }

  .section-header .more-link:hover {
    color: var(--accent-2);
    gap: 10px;
  }

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

  .related-card {
    background: var(--surface);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(227, 222, 214, .6);
    transition: transform var(--transition), box-shadow var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
  }

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

  .related-card .card-img {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 10;
  }

  .related-card .card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s ease;
  }

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

  .related-card .card-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
  }

  .related-card .card-tag {
    font-size: .8rem;
    color: var(--accent-2);
    font-weight: 600;
    margin-bottom: 10px;
  }

  .related-card h3 {
    font-size: 1.06rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.5;
    margin-bottom: 12px;
    transition: color var(--transition);
  }

  .related-card:hover h3 {
    color: var(--accent-2);
  }

  .related-card p {
    font-size: .88rem;
    color: var(--muted);
    line-height: 1.7;
    margin-bottom: 18px;
    flex: 1;
  }

  .related-card .card-link {
    font-weight: 600;
    font-size: .88rem;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color var(--transition), gap var(--transition);
  }

  .related-card .card-link:hover {
    color: var(--accent-2);
    gap: 10px;
  }

  /* FAQ */
  .faq-section {
    padding: 70px 0;
    background: var(--primary);
    color: rgba(255, 255, 255, .85);
    position: relative;
    overflow: hidden;
  }

  .faq-section::before {
    content: '';
    position: absolute;
    left: -120px;
    bottom: -160px;
    width: 420px;
    height: 420px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(201, 168, 106, .18), transparent 65%);
  }

  .faq-section .section-header h2 {
    color: #fff;
  }

  .faq-section .section-header .eyebrow {
    color: var(--accent);
  }

  .faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    position: relative;
    z-index: 2;
  }

  .faq-item {
    background: rgba(255, 255, 255, .04);
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: var(--radius);
    padding: 28px;
    transition: background var(--transition), border-color var(--transition), transform var(--transition);
  }

  .faq-item:hover {
    background: rgba(255, 255, 255, .07);
    border-color: rgba(201, 168, 106, .35);
    transform: translateY(-3px);
  }

  .faq-item h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
  }

  .faq-item h3::before {
    content: 'Q';
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 8px;
    background: var(--accent);
    color: #fff;
    font-size: .82rem;
    font-weight: 800;
    flex-shrink: 0;
    margin-top: 2px;
  }

  .faq-item p {
    font-size: .92rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, .65);
    margin-left: 36px;
  }

  /* CTA */
  .cta-section {
    padding: 80px 0;
    background:
      linear-gradient(135deg, rgba(12, 34, 51, .92), rgba(20, 64, 92, .85)),
      url('/assets/images/backpic/back-3.png') center / cover no-repeat;
    position: relative;
  }

  .cta-box {
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
    color: #fff;
  }

  .cta-box h2 {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 800;
    line-height: 1.4;
    margin-bottom: 16px;
  }

  .cta-box p {
    color: rgba(255, 255, 255, .7);
    font-size: 1rem;
    line-height: 1.9;
    margin-bottom: 36px;
  }

  .cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
  }

  /* Footer */
  .site-footer {
    background: #081c2a;
    color: rgba(255, 255, 255, .7);
    padding-top: 60px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 44px;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
  }

  .footer-logo {
    font-size: 1.4rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
  }

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

  .footer-about p {
    font-size: .92rem;
    line-height: 1.85;
    color: rgba(255, 255, 255, .55);
    max-width: 360px;
  }

  .footer-col h4 {
    font-size: .95rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 18px;
    position: relative;
    padding-bottom: 10px;
  }

  .footer-col h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 28px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
  }

  .footer-col a,
  .footer-col span {
    display: block;
    font-size: .9rem;
    color: rgba(255, 255, 255, .5);
    margin-bottom: 10px;
    transition: color var(--transition), padding-left var(--transition);
  }

  .footer-col a:hover {
    color: var(--accent);
    padding-left: 6px;
  }

  .footer-bottom {
    padding: 22px 0;
    text-align: center;
    font-size: .86rem;
    color: rgba(255, 255, 255, .4);
  }

  /* Focus accessibility */
  a:focus-visible,
  button:focus-visible,
  input:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 4px;
  }

  /* Responsive */
  @media (max-width: 1024px) {
    .article-layout {
      grid-template-columns: 1fr;
    }

    .sidebar-sticky {
      position: static;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

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

  @media (max-width: 768px) {
    .header-flex {
      flex-wrap: wrap;
      gap: 14px;
      padding: 12px 0;
      min-height: auto;
    }

    .header-search {
      order: 3;
      flex-basis: 100%;
      height: 42px;
    }

    .header-cta {
      display: none;
    }

    .nav-flex {
      gap: 24px;
    }

    .article-banner {
      padding: 56px 0 44px;
    }

    .banner-inner h1 {
      font-size: 1.6rem;
    }

    .article-main {
      padding: 28px 22px;
    }

    .article-section {
      padding: 40px 0;
    }

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

    .related-section {
      padding: 48px 0;
    }

    .related-grid {
      grid-template-columns: 1fr;
      gap: 18px;
    }

    .faq-section {
      padding: 48px 0;
    }

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

    .cta-section {
      padding: 56px 0;
    }

    .footer-grid {
      grid-template-columns: 1fr 1fr;
      gap: 32px 24px;
    }

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

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

    .logo {
      font-size: 1.25rem;
    }

    .nav-flex {
      gap: 18px;
      font-size: .88rem;
    }

    .article-banner {
      padding: 42px 0 34px;
    }

    .banner-meta {
      gap: 10px;
      font-size: .82rem;
    }

    .article-main {
      padding: 20px 16px;
      border-radius: 12px;
    }

    .article-content {
      font-size: .98rem;
    }

    .article-tags {
      gap: 8px;
    }

    .tag {
      font-size: .78rem;
      padding: 4px 12px;
    }

    .section-header h2 {
      font-size: 1.4rem;
    }

    .related-card .card-body {
      padding: 18px;
    }

    .faq-item {
      padding: 20px;
    }

    .faq-item h3 {
      font-size: .95rem;
    }

    .faq-item p {
      font-size: .86rem;
      margin-left: 0;
      margin-top: 10px;
    }

    .cta-box p {
      font-size: .92rem;
    }

    .cta-buttons .btn {
      padding: 10px 18px;
      font-size: .88rem;
    }

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

    .footer-about {
      grid-column: auto;
    }
  }

/* roulang page: category1 */
/* ================= 设计变量 ================= */
:root {
  --primary: #0a1628;
  --primary-dark: #060e1a;
  --primary-light: #142940;
  --accent: #c8a96e;
  --accent-dark: #a8874a;
  --accent-soft: rgba(200, 169, 110, 0.14);
  --bg: #f6f7f9;
  --bg-alt: #eef0f4;
  --card-bg: #ffffff;
  --text: #1b2432;
  --text-muted: #677083;
  --text-light: rgba(255, 255, 255, 0.85);
  --border: #e4e7ec;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(10, 22, 40, 0.05);
  --shadow-md: 0 10px 28px rgba(10, 22, 40, 0.08);
  --shadow-lg: 0 18px 44px rgba(10, 22, 40, 0.13);
  --transition: all 0.25s ease;
  --container: 1200px;
  --space-section: 96px;
}

/* ================= 基础 Reset ================= */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}
button {
  font-family: inherit;
  cursor: pointer;
}
input, select, textarea {
  font-family: inherit;
}
ul, ol {
  list-style: none;
}

/* ================= 通用布局 ================= */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: var(--space-section) 0;
}
.section-alt {
  background: var(--bg-alt);
}
.section-header {
  max-width: 760px;
  margin: 0 auto 56px;
  text-align: center;
}
.section-eyebrow {
  display: inline-block;
  padding: 6px 16px;
  background: var(--accent-soft);
  border-radius: 999px;
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
}
.section-title {
  font-family: 'Noto Serif SC', serif;
  font-size: 38px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--primary);
  margin-bottom: 16px;
}
.section-desc {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.9;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  border: none;
  gap: 8px;
  line-height: 1.4;
}
.btn-sm {
  padding: 9px 18px;
  font-size: 14px;
}
.btn-primary {
  background: var(--accent);
  color: var(--primary);
}
.btn-primary:hover {
  background: #d9bc82;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(200, 169, 110, 0.35);
}
.btn-outline {
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.55);
  color: rgba(255, 255, 255, 0.9);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.btn-ghost {
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: transparent;
  color: rgba(255, 255, 255, 0.85);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(200, 169, 110, 0.08);
}

/* ================= 顶部导航 ================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--primary);
  box-shadow: 0 6px 24px rgba(6, 14, 26, 0.3);
}
.header-top {
  background: linear-gradient(180deg, var(--primary) 0%, #0d1e32 100%);
}
.header-flex {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 12px 0;
}
.logo {
  font-family: 'Noto Serif SC', serif;
  font-size: 23px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: #fff;
  display: inline-flex;
  align-items: baseline;
  gap: 3px;
  white-space: nowrap;
  line-height: 1.3;
}
.logo em {
  font-style: normal;
  color: var(--accent);
  font-weight: 600;
  font-size: 18px;
}
.header-search {
  display: flex;
  align-items: center;
  flex: 1;
  max-width: 420px;
  margin-left: auto;
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  padding: 5px 6px 5px 18px;
  transition: var(--transition);
}
.header-search:focus-within {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(200, 169, 110, 0.65);
  box-shadow: 0 0 0 4px rgba(200, 169, 110, 0.12);
}
.header-search input {
  flex: 1;
  min-width: 0;
  background: none;
  border: none;
  outline: none;
  color: #fff;
  font-size: 14px;
  line-height: 30px;
}
.header-search input::placeholder {
  color: rgba(255, 255, 255, 0.55);
}
.search-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  flex-shrink: 0;
}
.search-btn:hover {
  background: #d9bc82;
  transform: scale(1.06);
}
.header-cta {
  margin-left: 4px;
  white-space: nowrap;
}
.main-nav {
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.nav-flex {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-flex a {
  display: inline-block;
  padding: 14px 18px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: var(--transition);
  letter-spacing: 0.4px;
  white-space: nowrap;
}
.nav-flex a:hover {
  color: var(--primary);
  background: rgba(10, 22, 40, 0.03);
}
.nav-flex a.active {
  color: var(--primary);
  font-weight: 600;
  border-bottom-color: var(--accent);
  background: transparent;
}

/* ================= Hero / 分类横幅 ================= */
.category-hero {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 120px 0 100px;
  isolation: isolate;
}
.category-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(6, 14, 26, 0.95) 0%, rgba(10, 22, 40, 0.82) 55%, rgba(10, 22, 40, 0.42) 100%);
  z-index: -1;
}
.category-hero::after {
  content: '';
  position: absolute;
  right: -80px;
  top: -80px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  border: 1px solid rgba(200, 169, 110, 0.2);
  z-index: -1;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 24px;
  letter-spacing: 0.5px;
}
.breadcrumb a {
  color: rgba(255, 255, 255, 0.75);
}
.breadcrumb a:hover {
  color: var(--accent);
}
.breadcrumb span {
  color: rgba(255, 255, 255, 0.4);
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border: 1px solid rgba(200, 169, 110, 0.5);
  background: rgba(200, 169, 110, 0.12);
  color: var(--accent);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 24px;
  backdrop-filter: blur(6px);
}
.category-hero h1 {
  font-family: 'Noto Serif SC', serif;
  font-size: 56px;
  line-height: 1.15;
  color: #fff;
  font-weight: 700;
  margin-bottom: 22px;
  letter-spacing: 1px;
}
.category-hero .lead {
  font-size: 18px;
  line-height: 1.85;
  color: var(--text-light);
  margin-bottom: 36px;
  max-width: 620px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 52px;
}
.hero-stats {
  display: flex;
  gap: 52px;
  flex-wrap: wrap;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}
.hero-stats .stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.hero-stats strong {
  font-family: 'Noto Serif SC', serif;
  font-size: 38px;
  color: #fff;
  font-weight: 700;
  line-height: 1.2;
}
.hero-stats strong i {
  font-style: normal;
  color: var(--accent);
  font-size: 20px;
  margin-left: 2px;
}
.hero-stats span {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.5px;
}

/* ================= 栏目简介 ================= */
.about-section {
  background: var(--bg);
}
.about-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.about-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.about-image img {
  width: 100%;
  height: 460px;
  object-fit: cover;
}
.about-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(6, 14, 26, 0.35) 100%);
}
.about-content h2 {
  font-family: 'Noto Serif SC', serif;
  font-size: 34px;
  line-height: 1.35;
  color: var(--primary);
  margin-bottom: 20px;
}
.about-content p {
  margin-bottom: 16px;
  color: var(--text-muted);
  line-height: 1.95;
  font-size: 15px;
}
.feature-list {
  margin-top: 28px;
  display: grid;
  gap: 14px;
}
.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 20px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.feature-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: rgba(200, 169, 110, 0.4);
}
.feature-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  display: flex;
  align-items: center;
  justify-content: center;
}
.feature-text h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 4px;
}
.feature-text p {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.7;
}

/* ================= 最新资讯 ================= */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.news-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.news-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
  border-color: transparent;
}
.news-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
}
.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.news-card:hover .news-thumb img {
  transform: scale(1.06);
}
.news-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(6, 14, 26, 0.3) 100%);
}
.news-tag {
  position: absolute;
  left: 16px;
  bottom: 14px;
  z-index: 2;
  padding: 5px 14px;
  border-radius: 999px;
  background: rgba(6, 14, 26, 0.75);
  backdrop-filter: blur(6px);
  color: #fff;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.5px;
  border: 1px solid rgba(255, 255, 255, 0.16);
}
.news-body {
  padding: 24px 26px 26px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.news-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary);
  line-height: 1.55;
  margin-bottom: 12px;
  transition: var(--transition);
}
.news-card:hover .news-body h3 {
  color: var(--accent-dark);
}
.news-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  flex: 1;
  margin-bottom: 20px;
}
.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
}
.news-meta a {
  color: var(--accent-dark);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.news-meta a:hover {
  gap: 8px;
}

/* ================= 进度时间线 ================= */
.timeline-section {
  background: var(--bg-alt);
}
.timeline-wrap {
  max-width: 860px;
  margin: 0 auto;
  position: relative;
}
.timeline-wrap::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--accent) 0%, var(--border) 100%);
}
.timeline-item {
  position: relative;
  display: flex;
  gap: 48px;
  padding: 24px 0;
}
.timeline-item:nth-child(odd) {
  flex-direction: row-reverse;
  text-align: right;
}
.timeline-dot {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 36px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--primary);
  border: 4px solid var(--accent);
  box-shadow: 0 0 0 6px rgba(200, 169, 110, 0.2);
  z-index: 2;
}
.timeline-content {
  flex: 1;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 26px 30px;
  transition: var(--transition);
}
.timeline-content:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.timeline-item:nth-child(odd) .timeline-content {
  order: 0;
}
.timeline-empty {
  flex: 1;
}
.tl-date {
  display: inline-block;
  padding: 4px 14px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}
.timeline-content h3 {
  font-size: 19px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
}
.timeline-content p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ================= 热门排行 ================= */
.ranking-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.ranking-section::before {
  content: '';
  position: absolute;
  right: -120px;
  top: -120px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: rgba(200, 169, 110, 0.1);
}
.ranking-section::after {
  content: '';
  position: absolute;
  left: -60px;
  bottom: -160px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  border: 1px solid rgba(200, 169, 110, 0.16);
}
.ranking-section .section-eyebrow {
  background: rgba(200, 169, 110, 0.18);
  color: var(--accent);
}
.ranking-section .section-title {
  color: #fff;
}
.ranking-section .section-desc {
  color: rgba(255, 255, 255, 0.65);
}
.ranking-list {
  max-width: 880px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}
.ranking-item {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 20px 22px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.ranking-item:last-child {
  border-bottom: none;
}
.ranking-item:hover {
  background: rgba(255, 255, 255, 0.05);
  transform: translateX(8px);
}
.rank-no {
  font-family: 'Noto Serif SC', serif;
  font-size: 32px;
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px rgba(200, 169, 110, 0.8);
  min-width: 52px;
  text-align: center;
  line-height: 1.2;
}
.ranking-item:first-child .rank-no {
  color: var(--accent);
  -webkit-text-stroke: 0;
}
.ranking-content {
  flex: 1;
}
.ranking-content h3 {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 4px;
}
.ranking-content p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
}
.rank-score {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  background: rgba(200, 169, 110, 0.12);
  padding: 8px 16px;
  border-radius: 999px;
  white-space: nowrap;
  border: 1px solid rgba(200, 169, 110, 0.3);
}

/* ================= 内容频道 ================= */
.channel-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.channel-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  text-align: center;
  transition: var(--transition);
  cursor: default;
  position: relative;
  overflow: hidden;
}
.channel-card::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  width: 60px;
  height: 3px;
  background: var(--accent);
  transform: translateX(-50%) scaleX(0);
  transition: var(--transition);
}
.channel-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
  border-color: rgba(200, 169, 110, 0.4);
}
.channel-card:hover::before {
  transform: translateX(-50%) scaleX(1);
}
.channel-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  color: var(--accent-dark);
  transition: var(--transition);
}
.channel-card:hover .channel-icon {
  background: var(--primary);
  color: var(--accent);
}
.channel-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
}
.channel-card p {
  font-size: 13px;
  color: var(--text-muted);
}

/* ================= FAQ ================= */
.faq-section {
  background: var(--bg);
}
.faq-list {
  max-width: 840px;
  margin: 0 auto;
}
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--card-bg);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item[open] {
  box-shadow: var(--shadow-md);
  border-color: rgba(200, 169, 110, 0.45);
}
.faq-item summary {
  padding: 22px 28px;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  list-style: none;
  font-size: 16px;
  outline: none;
  transition: var(--transition);
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary:hover {
  color: var(--accent-dark);
}
.faq-item summary::after {
  content: '+';
  font-size: 24px;
  font-weight: 400;
  color: var(--accent);
  transition: transform 0.3s ease;
  line-height: 1;
}
.faq-item[open] summary::after {
  transform: rotate(45deg);
}
.faq-body {
  padding: 0 28px 28px;
  color: var(--text-muted);
  line-height: 1.9;
  font-size: 15px;
}

/* ================= CTA ================= */
.cta-section {
  position: relative;
  padding: var(--space-section) 0;
  background-size: cover;
  background-position: center;
  isolation: isolate;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(6, 14, 26, 0.95) 0%, rgba(10, 22, 40, 0.86) 100%);
  z-index: -1;
}
.cta-wrap {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}
.cta-wrap h2 {
  font-family: 'Noto Serif SC', serif;
  font-size: 38px;
  color: #fff;
  margin-bottom: 18px;
  line-height: 1.35;
}
.cta-wrap p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.9;
  margin-bottom: 36px;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ================= 页脚 ================= */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 80px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 52px;
  padding-bottom: 56px;
}
.footer-logo {
  font-family: 'Noto Serif SC', serif;
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  display: inline-flex;
  align-items: baseline;
  gap: 3px;
}
.footer-logo em {
  font-style: normal;
  color: var(--accent);
  font-size: 16px;
}
.footer-about p {
  font-size: 14px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.6);
  max-width: 340px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}
.footer-col a {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  padding: 7px 0;
  transition: var(--transition);
}
.footer-col a:hover {
  color: var(--accent);
  transform: translateX(4px);
}
.footer-col span {
  display: block;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  padding-top: 8px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
  letter-spacing: 0.5px;
}

/* ================= 入场动画 ================= */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ================= 响应式断点 ================= */
@media (max-width: 1024px) {
  :root {
    --space-section: 80px;
  }
  .about-wrap {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .about-image img {
    height: 380px;
  }
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .channel-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .timeline-wrap::before {
    left: 20px;
  }
  .timeline-item,
  .timeline-item:nth-child(odd) {
    flex-direction: column;
    text-align: left;
    padding-left: 64px;
    gap: 12px;
  }
  .timeline-dot {
    left: 7px;
    transform: none;
  }
  .timeline-empty {
    display: none;
  }
  .timeline-content {
    width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}
@media (max-width: 768px) {
  :root {
    --space-section: 64px;
  }
  .header-flex {
    flex-wrap: wrap;
    gap: 10px;
  }
  .header-flex .logo {
    flex: 0 0 auto;
  }
  .header-search {
    order: 3;
    max-width: 100%;
    flex-basis: 100%;
    margin-left: 0;
  }
  .header-cta {
    margin-left: auto;
  }
  .nav-flex {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .nav-flex::-webkit-scrollbar {
    display: none;
  }
  .category-hero {
    padding: 80px 0 70px;
  }
  .category-hero h1 {
    font-size: 40px;
  }
  .category-hero .lead {
    font-size: 16px;
  }
  .hero-stats {
    gap: 32px;
    padding-top: 30px;
  }
  .hero-stats strong {
    font-size: 30px;
  }
  .section-title {
    font-size: 30px;
  }
  .about-content h2 {
    font-size: 27px;
  }
  .news-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .channel-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .ranking-item {
    padding: 16px 14px;
    gap: 14px;
  }
  .rank-no {
    font-size: 24px;
    min-width: 36px;
  }
  .ranking-content h3 {
    font-size: 15px;
  }
  .rank-score {
    font-size: 12px;
    padding: 6px 12px;
  }
  .cta-wrap h2 {
    font-size: 30px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }
  .header-flex {
    padding: 10px 0;
  }
  .logo {
    font-size: 20px;
  }
  .header-cta {
    display: none;
  }
  .category-hero {
    padding: 60px 0 56px;
  }
  .category-hero h1 {
    font-size: 32px;
  }
  .hero-actions {
    flex-direction: column;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .hero-stats {
    gap: 22px;
  }
  .hero-stats .stat {
    flex-basis: calc(50% - 22px);
  }
  .section {
    padding: 52px 0;
  }
  .section-title {
    font-size: 26px;
  }
  .section-desc {
    font-size: 15px;
  }
  .channel-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .timeline-item,
  .timeline-item:nth-child(odd) {
    padding-left: 48px;
  }
  .timeline-content {
    padding: 20px;
  }
  .faq-item summary {
    padding: 18px 20px;
    font-size: 15px;
  }
  .faq-body {
    padding: 0 20px 22px;
  }
  .cta-actions {
    flex-direction: column;
    width: 100%;
  }
  .cta-actions .btn {
    width: 100%;
  }
}