/* roulang page: index */
:root{
  --primary:#1a3144;--primary-light:#24445c;--accent:#d19a4c;--accent-soft:#f4e3c7;
  --bg:#f7f5f0;--bg-alt:#f0ece4;--text:#1e293b;--text-light:#64748b;--border:#e5e0d8;
  --white:#fff;--radius:16px;--radius-sm:10px;--shadow:0 4px 24px rgba(0,0,0,0.05);
  --shadow-lg:0 12px 40px rgba(0,0,0,0.08);--transition:all 0.3s ease;--container:1200px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;line-height:1.75;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;}
a{text-decoration:none;color:inherit;transition:var(--transition);}
img{max-width:100%;display:block;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
ul,ol{list-style:none;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}

/* Header */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--border);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:76px;}
.logo{font-size:1.32rem;font-weight:800;color:var(--primary);letter-spacing:-.5px;display:flex;align-items:center;gap:10px;}
.logo-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--primary),var(--primary-light));display:flex;align-items:center;justify-content:center;color:var(--accent);font-style:normal;font-weight:900;font-size:18px;box-shadow:0 2px 10px rgba(26,49,68,.25);}
.desktop-nav{display:flex;gap:4px;}
.nav-link{padding:9px 22px;border-radius:999px;font-weight:550;font-size:.95rem;color:var(--text-light);border:1px solid transparent;}
.nav-link:hover{background:var(--bg-alt);color:var(--text);}
.nav-link.active{background:var(--primary);color:#fff;box-shadow:0 4px 14px rgba(26,49,68,.25);}
.menu-toggle{display:none;width:42px;height:42px;border-radius:10px;background:var(--bg-alt);align-items:center;justify-content:center;}

/* Hero */
.hero{position:relative;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;display:flex;align-items:center;justify-content:center;text-align:center;overflow:hidden;}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(18,36,52,.88),rgba(26,49,68,.62));}
.hero-content{position:relative;z-index:2;max-width:840px;padding:110px 24px 130px;}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);color:#f0eadc;padding:7px 20px;border-radius:999px;font-size:.85rem;letter-spacing:1px;backdrop-filter:blur(4px);margin-bottom:26px;}
.hero-title{font-size:clamp(2.4rem,5vw,3.6rem);font-weight:900;color:#fff;line-height:1.2;letter-spacing:-1px;margin-bottom:22px;}
.hero-title em{font-style:normal;color:var(--accent);}
.hero-sub{font-size:1.08rem;color:rgba(255,255,255,.85);max-width:620px;margin:0 auto 38px;line-height:1.8;}
.hero-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 34px;border-radius:999px;font-weight:600;font-size:1rem;transition:var(--transition);}
.btn-primary{background:var(--accent);color:#1a2e3d;box-shadow:0 6px 22px rgba(209,154,76,.35);}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 10px 30px rgba(209,154,76,.45);}
.btn-outline{border:1.5px solid rgba(255,255,255,.7);color:#fff;background:transparent;}
.btn-outline:hover{background:rgba(255,255,255,.12);transform:translateY(-3px);}
.hero-wave{position:absolute;bottom:-1px;left:0;right:0;z-index:3;line-height:0;}
.hero-wave svg{width:100%;height:70px;display:block;}

/* Section base */
.section{padding:100px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{text-align:center;max-width:720px;margin:0 auto 60px;}
.section-tag{display:inline-block;background:var(--accent-soft);color:#8a6323;padding:6px 18px;border-radius:999px;font-size:.82rem;font-weight:600;letter-spacing:.5px;margin-bottom:16px;}
.section-title{font-size:clamp(1.8rem,3.4vw,2.6rem);font-weight:800;color:var(--primary);line-height:1.3;letter-spacing:-.5px;}
.section-desc{color:var(--text-light);font-size:1.02rem;margin-top:16px;line-height:1.8;}

/* Intro */
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;}
.intro-image{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--shadow-lg);}
.intro-image img{width:100%;height:420px;object-fit:cover;border-radius:20px;}
.intro-image .img-badge{position:absolute;bottom:20px;left:20px;background:rgba(26,49,68,.86);color:#fff;padding:12px 22px;border-radius:14px;font-size:.9rem;backdrop-filter:blur(6px);font-weight:600;}
.intro-text h3{font-size:1.55rem;color:var(--primary);font-weight:800;margin-bottom:20px;line-height:1.4;}
.intro-text p{color:var(--text-light);margin-bottom:16px;font-size:1rem;line-height:1.9;}
.intro-text .btn{margin-top:10px;}

/* Feature cards */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;}
.feature-card{background:var(--white);border-radius:var(--radius);padding:36px 30px;box-shadow:var(--shadow);border:1px solid var(--border);transition:var(--transition);position:relative;overflow:hidden;}
.feature-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--accent),transparent);opacity:.6;}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);}
.feature-icon{width:54px;height:54px;border-radius:14px;background:var(--primary);display:flex;align-items:center;justify-content:center;font-size:22px;color:var(--accent);margin-bottom:22px;}
.feature-card h3{font-size:1.22rem;color:var(--primary);font-weight:700;margin-bottom:12px;}
.feature-card p{color:var(--text-light);font-size:.95rem;line-height:1.8;}

/* Category entry */
.cat-entry{background:var(--primary);border-radius:24px;padding:60px;position:relative;overflow:hidden;}
.cat-entry::after{content:'';position:absolute;right:-60px;top:-60px;width:240px;height:240px;background:radial-gradient(circle,rgba(209,154,76,.18),transparent 60%);}
.cat-entry::before{content:'';position:absolute;right:120px;bottom:-80px;width:300px;height:300px;background:url('/assets/images/backpic/back-3.png') center/cover;opacity:.18;border-radius:50%;}
.cat-entry-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;position:relative;z-index:2;}
.cat-entry-text h2{color:#fff;font-size:1.9rem;font-weight:800;margin-bottom:16px;}
.cat-entry-text p{color:rgba(255,255,255,.8);line-height:1.8;margin-bottom:24px;}
.cat-entry-tags{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:24px;}
.tag{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.2);color:#f0eadc;padding:5px 16px;border-radius:999px;font-size:.8rem;}
.cat-entry-img{border-radius:18px;overflow:hidden;box-shadow:0 16px 48px rgba(0,0,0,.3);}
.cat-entry-img img{width:100%;height:280px;object-fit:cover;}

/* News list */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px;}
.news-card{background:var(--white);border-radius:var(--radius);padding:28px;border:1px solid var(--border);box-shadow:var(--shadow);transition:var(--transition);display:flex;flex-direction:column;gap:10px;position:relative;}
.news-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--accent);}
.news-card .badge{position:absolute;top:18px;right:18px;background:var(--accent-soft);color:#8a6323;font-size:.72rem;font-weight:700;padding:4px 14px;border-radius:999px;}
.news-card h3{font-size:1.1rem;font-weight:700;color:var(--text);line-height:1.5;margin-bottom:4px;padding-right:70px;}
.news-card p{color:var(--text-light);font-size:.92rem;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:16px;font-size:.82rem;color:var(--text-light);margin-top:auto;padding-top:10px;border-top:1px solid var(--border);}
.empty-tip{grid-column:1/-1;text-align:center;padding:60px 20px;background:var(--white);border-radius:var(--radius);border:1px dashed var(--border);color:var(--text-light);font-size:1.05rem;}

/* Stats */
.stats-section{background:var(--primary);border-radius:24px;padding:60px 40px;display:grid;grid-template-columns:repeat(4,1fr);gap:40px;text-align:center;position:relative;overflow:hidden;}
.stats-section::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center/cover;opacity:.08;}
.stat-item{position:relative;z-index:2;}
.stat-num{font-size:2.6rem;font-weight:900;color:var(--accent);line-height:1.1;}
.stat-label{color:rgba(255,255,255,.7);font-size:.95rem;margin-top:8px;}

/* Content cards */
.media-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;}
.media-card{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border);transition:var(--transition);}
.media-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);}
.media-card-img{position:relative;height:200px;overflow:hidden;}
.media-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease;}
.media-card:hover .media-card-img img{transform:scale(1.06);}
.media-card-img .media-tag{position:absolute;bottom:12px;left:12px;background:rgba(26,49,68,.9);color:#fff;font-size:.75rem;padding:5px 14px;border-radius:999px;backdrop-filter:blur(4px);}
.media-card-body{padding:24px;}
.media-card-body h3{font-size:1.1rem;font-weight:700;color:var(--text);margin-bottom:8px;line-height:1.5;}
.media-card-body p{color:var(--text-light);font-size:.9rem;line-height:1.7;}
.media-link{display:inline-flex;align-items:center;gap:6px;margin-top:14px;color:var(--primary);font-weight:600;font-size:.9rem;}
.media-link:hover{color:var(--accent);gap:10px;}

/* FAQ */
.faq-list{max-width:820px;margin:0 auto;}
.faq-item{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:14px;overflow:hidden;transition:var(--transition);}
.faq-item.open{box-shadow:var(--shadow);border-color:var(--accent);}
.faq-q{width:100%;text-align:left;padding:22px 26px;display:flex;justify-content:space-between;align-items:center;font-size:1.02rem;font-weight:600;color:var(--text);}
.faq-q .faq-icon{width:28px;height:28px;border-radius:50%;background:var(--accent-soft);display:flex;align-items:center;justify-content:center;font-size:16px;color:#8a6323;transition:var(--transition);flex-shrink:0;}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--accent);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 26px;}
.faq-item.open .faq-a{max-height:220px;padding:0 26px 22px;}
.faq-a p{color:var(--text-light);font-size:.95rem;line-height:1.9;}

/* CTA */
.cta-section{background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:24px;padding:70px 50px;text-align:center;position:relative;overflow:hidden;}
.cta-section::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center/cover;opacity:.12;}
.cta-content{position:relative;z-index:2;}
.cta-section h2{color:#fff;font-size:2rem;font-weight:800;margin-bottom:14px;}
.cta-section p{color:rgba(255,255,255,.8);font-size:1.05rem;margin-bottom:32px;max-width:560px;margin-left:auto;margin-right:auto;}
.cta-section .btn-primary{font-size:1.05rem;padding:16px 42px;}

/* Footer */
.site-footer{background:#111f2b;color:rgba(255,255,255,.65);padding:70px 0 30px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:50px;margin-bottom:50px;}
.footer-brand .logo{color:#fff;margin-bottom:16px;}
.footer-brand p{font-size:.92rem;line-height:1.9;max-width:340px;}
.footer-col h4{color:#fff;font-size:1rem;font-weight:700;margin-bottom:20px;letter-spacing:.5px;}
.footer-col a{display:block;color:rgba(255,255,255,.6);padding:6px 0;font-size:.92rem;}
.footer-col a:hover{color:var(--accent);padding-left:6px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:28px;display:flex;justify-content:space-between;align-items:center;font-size:.85rem;color:rgba(255,255,255,.45);flex-wrap:wrap;gap:12px;}

/* Mobile Tab */
.mobile-tabbar{display:none;position:fixed;bottom:0;left:0;right:0;background:rgba(255,255,255,.98);border-top:1px solid var(--border);z-index:1000;padding:6px 12px calc(8px + env(safe-area-inset-bottom));backdrop-filter:blur(12px);}
.tab-item{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;padding:6px 10px;border-radius:12px;font-size:.72rem;color:var(--text-light);transition:var(--transition);}
.tab-item.active{color:var(--primary);background:var(--bg-alt);font-weight:600;}
.tab-item .tab-icon{font-size:19px;line-height:1;}

/* Responsive */
@media(max-width:1024px){
  .section{padding:80px 0;}
  .feature-grid{grid-template-columns:repeat(2,1fr);}
  .media-grid{grid-template-columns:repeat(2,1fr);}
  .stats-section{grid-template-columns:repeat(2,1fr);gap:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .intro-grid{grid-template-columns:1fr;gap:40px;}
  .cat-entry-grid{grid-template-columns:1fr;}
  .cat-entry{ padding:40px;}
}
@media(max-width:768px){
  .section{padding:60px 0;}
  .desktop-nav{display:none;}
  .menu-toggle{display:flex;}
  .header-inner{height:64px;}
  .mobile-tabbar{display:flex;}
  .site-header{padding-bottom:0;}
  .hero-content{padding:80px 20px 100px;}
  .hero-title{font-size:2rem;}
  .hero-sub{font-size:.95rem;}
  .news-grid{grid-template-columns:1fr;}
  .feature-grid{grid-template-columns:1fr;}
  .media-grid{grid-template-columns:1fr;}
  .stats-section{grid-template-columns:repeat(2,1fr);padding:40px 20px;}
  .cta-section{padding:50px 24px;}
  .cta-section h2{font-size:1.5rem;}
  .footer-grid{grid-template-columns:1fr;gap:34px;}
  .footer-bottom{flex-direction:column;text-align:center;}
  body{padding-bottom:70px;}
}
@media(max-width:520px){
  .container{padding:0 16px;}
  .section-tag{font-size:.75rem;padding:5px 14px;}
  .section-title{font-size:1.5rem;}
  .hero-title{font-size:1.7rem;letter-spacing:-.5px;}
  .hero-badge{padding:6px 14px;font-size:.77rem;}
  .feature-card{padding:26px 20px;}
  .news-card{padding:20px;}
  .news-card h3{padding-right:0;font-size:1rem;}
  .stat-num{font-size:2rem;}
  .cat-entry{padding:30px 20px;}
  .cta-section p{font-size:.93rem;}
}

/* roulang page: category1 */
:root {
  --primary: #1a3a5c;
  --primary-light: #2b5a8a;
  --accent: #c9a96a;
  --accent-dark: #a8864d;
  --bg-body: #f7f5f2;
  --bg-white: #ffffff;
  --bg-soft: #f0ece6;
  --bg-deep: #132639;
  --text-main: #2c2c2c;
  --text-muted: #6b7280;
  --text-light: #9ca3af;
  --border: #e5dfd8;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --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 14px 40px rgba(0,0,0,0.11);
  --space-section: 100px;
  --font-main: "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--bg-body);
  color: var(--text-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.25s ease;
}

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

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

ul {
  list-style: none;
}

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 8px rgba(0,0,0,0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.5px;
}

.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--primary);
  color: #fff;
  border-radius: 10px;
  font-size: 1.1rem;
  font-weight: 800;
  box-shadow: 0 3px 10px rgba(26,58,92,0.28);
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.desktop-nav .nav-link {
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-main);
  transition: all 0.25s ease;
}

.desktop-nav .nav-link:hover {
  background: var(--bg-soft);
  color: var(--primary);
}

.desktop-nav .nav-link.active {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 3px 12px rgba(26,58,92,0.25);
}

/* ========== Mobile Bottom Tab ========== */
.mobile-tabbar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: #fff;
  border-top: 1px solid var(--border);
  box-shadow: 0 -4px 20px rgba(0,0,0,0.07);
  height: 68px;
}

.mobile-tabbar a {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  font-size: 0.72rem;
  color: var(--text-muted);
  transition: all 0.2s ease;
}

.mobile-tabbar a i {
  font-size: 1.2rem;
}

.mobile-tabbar a.active {
  color: var(--primary);
  font-weight: 600;
}

/* ========== Category Banner ========== */
.category-banner {
  position: relative;
  padding: 120px 0 96px;
  background-image: linear-gradient(135deg, rgba(19,38,57,0.94), rgba(26,58,92,0.84)), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  color: #fff;
  text-align: center;
  overflow: hidden;
}

.category-banner::after {
  content: '';
  position: absolute;
  bottom: -60px;
  right: -40px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  border: 40px solid rgba(201,169,106,0.18);
  z-index: 1;
}

.category-banner .container {
  position: relative;
  z-index: 2;
}

.category-banner .banner-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.14);
  border: 1px solid rgba(255,255,255,0.24);
  padding: 7px 18px;
  border-radius: 999px;
  font-size: 0.86rem;
  letter-spacing: 1px;
  margin-bottom: 26px;
  color: #e0d6c4;
}

.category-banner h1 {
  font-size: 2.9rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.category-banner .banner-title-accent {
  color: var(--accent);
}

.category-banner .banner-desc {
  max-width: 640px;
  margin: 0 auto;
  font-size: 1.08rem;
  color: rgba(255,255,255,0.82);
  line-height: 1.8;
}

.category-banner .banner-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: 40px;
}

.category-banner .banner-stats .stat-item {
  text-align: center;
}

.category-banner .banner-stats .stat-num {
  font-size: 2.2rem;
  font-weight: 800;
  color: #fff;
  display: block;
  font-style: normal;
}

.category-banner .banner-stats .stat-label {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.68);
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* ========== Breadcrumb ========== */
.breadcrumb-bar {
  background: var(--bg-white);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.breadcrumb-bar .container {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb-bar a {
  color: var(--text-muted);
}

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

.breadcrumb-bar .current {
  color: var(--primary);
  font-weight: 600;
}

/* ========== Intro / About Section ========== */
.section {
  padding: var(--space-section) 0;
}

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

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

.section-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 56px;
}

.section-head .section-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  letter-spacing: 2.5px;
  color: var(--accent-dark);
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 14px;
  background: rgba(201,169,106,0.12);
  padding: 6px 18px;
  border-radius: 999px;
}

.section-head h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.3;
  margin-bottom: 14px;
}

.section-head p {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.8;
}

/* Intro Text Module */
.intro-block {
  max-width: 820px;
  margin: 0 auto;
  position: relative;
  padding: 40px 56px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}

.intro-block::before {
  content: '\201C';
  position: absolute;
  top: 12px;
  left: 24px;
  font-size: 5rem;
  color: var(--accent);
  font-family: Georgia, serif;
  opacity: 0.45;
  line-height: 1;
}

.intro-block p {
  font-size: 1.06rem;
  line-height: 2;
  color: #3d3d3d;
  text-align: justify;
}

.intro-block p + p {
  margin-top: 16px;
}

.intro-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
}

.intro-meta .avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
}

.intro-meta .meta-info {
  font-size: 0.9rem;
}

.intro-meta .meta-info .name {
  font-weight: 600;
  color: var(--primary);
}

.intro-meta .meta-info .role {
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* ========== Sub Categories Cards ========== */
.subcat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.subcat-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.subcat-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  background: var(--accent);
  transition: width 0.35s ease;
  border-radius: 3px;
}

.subcat-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-6px);
  border-color: rgba(201,169,106,0.4);
}

.subcat-card:hover::after {
  width: 70%;
}

.subcat-card .icon-wrap {
  width: 74px;
  height: 74px;
  margin: 0 auto 22px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  box-shadow: 0 6px 18px rgba(26,58,92,0.25);
}

.subcat-card:nth-child(2) .icon-wrap {
  background: linear-gradient(135deg, #c9a96a, #8b6f3c);
  box-shadow: 0 6px 18px rgba(201,169,106,0.3);
}

.subcat-card:nth-child(3) .icon-wrap {
  background: linear-gradient(135deg, #2e7d6b, #1d5246);
}

.subcat-card:nth-child(4) .icon-wrap {
  background: linear-gradient(135deg, #e07b5f, #b04f38);
}

.subcat-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}

.subcat-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ========== Featured Content Cards ========== */
.featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.article-card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all 0.35s ease;
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-5px);
}

.article-card .card-img {
  height: 220px;
  overflow: hidden;
  position: relative;
}

.article-card .card-img img {
  width: 100%;
  height: 100%;
  transition: transform 0.6s ease;
}

.article-card:hover .card-img img {
  transform: scale(1.06);
}

.article-card .card-img .img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.6));
}

.article-card .card-body {
  padding: 26px 26px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.article-card .card-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--accent-dark);
  font-weight: 600;
  background: rgba(201,169,106,0.12);
  padding: 4px 12px;
  border-radius: 999px;
  align-self: flex-start;
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.article-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.45;
  margin-bottom: 10px;
  transition: color 0.25s;
}

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

.article-card .card-excerpt {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 16px;
}

.article-card .card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-light);
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

.article-card .card-meta .read-more {
  color: var(--primary);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: gap 0.25s;
}

.article-card .card-meta .read-more:hover {
  gap: 9px;
  color: var(--accent-dark);
}

/* ========== Feature Content Detailed ========== */
.detail-panel {
  background: var(--bg-soft);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
}

.detail-panel-row {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  min-height: 420px;
}

.detail-panel-row + .detail-panel-row {
  border-top: 1px solid var(--border);
}

.detail-panel-row .panel-img {
  overflow: hidden;
  position: relative;
  min-height: 340px;
}

.detail-panel-row .panel-img img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.detail-panel-row .panel-content {
  padding: 48px 52px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.detail-panel-row:nth-child(even) .panel-img {
  order: 2;
}

.panel-content .panel-tag {
  font-size: 0.8rem;
  color: var(--accent-dark);
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.panel-content h3 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.35;
  margin-bottom: 18px;
}

.panel-content p {
  font-size: 0.98rem;
  color: var(--text-muted);
  line-height: 1.85;
  margin-bottom: 12px;
}

.panel-content .feature-list {
  margin-top: 14px;
}

.panel-content .feature-list li {
  padding: 8px 0;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.94rem;
  color: var(--text-main);
}

.panel-content .feature-list li i {
  color: var(--accent-dark);
  margin-top: 5px;
  font-size: 0.85rem;
}

/* ========== Data / Process Section ========== */
.flow-section {
  background: var(--bg-deep);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.flow-section::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  border: 50px solid rgba(201,169,106,0.08);
}

.flow-section .section-head h2 {
  color: #fff;
}

.flow-section .section-head p {
  color: rgba(255,255,255,0.7);
}

.flow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  position: relative;
  z-index: 2;
}

.flow-step {
  text-align: center;
  padding: 36px 20px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  transition: all 0.3s ease;
}

.flow-step:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-4px);
  border-color: rgba(201,169,106,0.4);
}

.flow-step .step-num {
  display: block;
  width: 44px;
  height: 44px;
  margin: 0 auto 18px;
  background: var(--accent);
  color: var(--bg-deep);
  font-weight: 800;
  font-size: 1.1rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(201,169,106,0.35);
}

.flow-step h3 {
  font-size: 1.05rem;
  margin-bottom: 10px;
  color: #fff;
}

.flow-step p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.7;
}

/* ========== Knowledge List Section ========== */
.knowledge-list {
  max-width: 860px;
  margin: 0 auto;
}

.knowledge-item {
  display: flex;
  gap: 24px;
  padding: 32px 0;
  border-bottom: 1px solid var(--border);
  transition: all 0.25s ease;
}

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

.knowledge-item:last-child {
  border-bottom: none;
}

.knowledge-item .knowledge-icon {
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  background: var(--bg-soft);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1.3rem;
  border: 1px solid var(--border);
  transition: all 0.3s;
}

.knowledge-item:hover .knowledge-icon {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 4px 14px rgba(26,58,92,0.25);
}

.knowledge-item .knowledge-content {
  flex: 1;
}

.knowledge-item .knowledge-content h3 {
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
  transition: color 0.25s;
}

.knowledge-item .knowledge-content h3 a:hover {
  color: var(--primary);
}

.knowledge-item .knowledge-content p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 8px;
}

.knowledge-item .knowledge-content .knowledge-meta {
  font-size: 0.78rem;
  color: var(--text-light);
  display: flex;
  gap: 20px;
}

/* ========== FAQ ========== */
.faq-section {
  background: var(--bg-soft);
}

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

.faq-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow 0.25s ease;
}

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

.faq-item summary {
  padding: 24px 30px;
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 14px;
  list-style: none;
  position: relative;
  transition: color 0.2s;
}

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

.faq-item summary::before {
  content: '\f059';
  font-family: "Font Awesome 6 Free";
  font-weight: 400;
  color: var(--accent-dark);
  font-size: 1.15rem;
  flex-shrink: 0;
}

.faq-item summary::after {
  content: '\f078';
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  margin-left: auto;
  font-size: 0.85rem;
  color: var(--text-light);
  transition: transform 0.3s ease;
}

.faq-item[open] summary::after {
  transform: rotate(180deg);
}

.faq-item[open] summary {
  color: var(--primary);
}

.faq-item .faq-answer {
  padding: 0 30px 26px;
  padding-left: 60px;
}

.faq-item .faq-answer p {
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.85;
}

.faq-more {
  text-align: center;
  margin-top: 36px;
}

/* ========== CTA Section ========== */
.cta-section {
  padding: 96px 0;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -80px;
  left: 10%;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  border: 45px solid rgba(255,255,255,0.06);
}

.cta-section h2 {
  font-size: 2.1rem;
  font-weight: 800;
  margin-bottom: 16px;
  position: relative;
  z-index: 2;
}

.cta-section p {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 34px;
  position: relative;
  z-index: 2;
}

.cta-btns {
  display: flex;
  justify-content: center;
  gap: 16px;
  position: relative;
  z-index: 2;
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-deep);
  box-shadow: 0 4px 16px rgba(201,169,106,0.35);
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201,169,106,0.4);
}

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

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

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

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

/* ========== Footer ========== */
.site-footer {
  background: var(--bg-deep);
  color: rgba(255,255,255,0.75);
  padding-top: 76px;
  padding-bottom: 100px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr;
  gap: 52px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 36px;
}

.footer-brand .logo {
  color: #fff;
  margin-bottom: 18px;
}

.footer-brand .logo-mark {
  background: var(--accent);
  color: var(--bg-deep);
  box-shadow: 0 3px 12px rgba(201,169,106,0.3);
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.8;
  color: rgba(255,255,255,0.55);
  max-width: 340px;
}

.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 22px;
  letter-spacing: 1px;
}

.footer-col a {
  display: block;
  padding: 5px 0;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  transition: color 0.25s, padding-left 0.25s;
}

.footer-col a:hover {
  color: var(--accent);
  padding-left: 5px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.84rem;
  color: rgba(255,255,255,0.4);
}

/* ========== Back to Top ========== */
.back-to-top {
  position: fixed;
  bottom: 90px;
  right: 28px;
  width: 46px;
  height: 46px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 900;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--accent-dark);
  transform: translateY(-3px);
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  :root {
    --space-section: 74px;
  }

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

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

  .detail-panel-row {
    grid-template-columns: 1fr;
  }

  .detail-panel-row .panel-img {
    min-height: 300px;
  }

  .detail-panel-row:nth-child(even) .panel-img {
    order: 0;
  }

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

  .category-banner {
    padding: 90px 0 72px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }

  .desktop-nav {
    display: none;
  }

  .mobile-tabbar {
    display: flex;
  }

  .site-header {
    height: 68px;
  }

  .header-inner {
    height: 68px;
  }

  body {
    padding-bottom: 68px;
  }

  .footer-bottom {
    padding-bottom: 12px;
  }

  .site-footer {
    padding-bottom: 68px;
  }

  .category-banner h1 {
    font-size: 2rem;
  }

  .category-banner .banner-desc {
    font-size: 0.96rem;
  }

  .category-banner .banner-stats {
    gap: 28px;
    flex-wrap: wrap;
  }

  .category-banner .banner-stats .stat-num {
    font-size: 1.6rem;
  }

  .intro-block {
    padding: 32px 28px;
  }

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

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

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
    align-items: center;
  }

  .knowledge-item {
    flex-direction: column;
    gap: 14px;
  }

  .detail-panel-row .panel-content {
    padding: 32px 26px;
  }

  .panel-content h3 {
    font-size: 1.3rem;
  }

  .cta-btns {
    flex-direction: column;
    align-items: center;
  }

  .back-to-top {
    bottom: 80px;
    right: 16px;
  }
}

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

  .category-banner {
    padding: 64px 0 56px;
  }

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

  .section-head h2 {
    font-size: 1.65rem;
  }

  .faq-item summary {
    padding: 18px 20px;
    font-size: 0.95rem;
  }

  .faq-item .faq-answer {
    padding: 0 20px 20px 48px;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }
}

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

/* roulang page: article */
:root {
  --primary: #162b40;
  --primary-light: #254b68;
  --primary-bg: #eef3f7;
  --accent: #d97736;
  --accent-dark: #b85c24;
  --accent-soft: #fdefe5;
  --bg-body: #f5f6f8;
  --bg-card: #ffffff;
  --bg-soft: #eaeff3;
  --text-main: #202a36;
  --text-body: #3f4d5c;
  --text-muted: #718096;
  --border: #e2e8f0;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 12px rgba(16, 36, 62, 0.06);
  --shadow-md: 0 6px 30px rgba(16, 36, 62, 0.10);
  --shadow-lg: 0 20px 60px rgba(16, 36, 62, 0.18);
  --transition: 0.25s ease;
  --container: 1200px;
  --header-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg-body);
  color: var(--text-body);
  font-size: 16px;
  line-height: 1.75;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
button, input, textarea, select { font: inherit; outline: none; }
ul, ol { margin: 0; padding: 0; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--primary);
  text-decoration: none;
  letter-spacing: -0.4px;
  line-height: 1.2;
}
.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  background: var(--primary);
  color: #fff;
  border-radius: 12px;
  font-size: 1.1rem;
  font-weight: 800;
  box-shadow: 0 4px 12px rgba(22,43,64,0.22);
}
.desktop-nav { display: flex; align-items: center; gap: 8px; }
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 999px;
  color: var(--text-body);
  text-decoration: none;
  font-size: 0.94rem;
  font-weight: 500;
  transition: var(--transition);
}
.nav-link:hover { background: var(--primary-bg); color: var(--primary); }
.nav-link.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 18px rgba(22,43,64,0.28);
}

.article-hero {
  position: relative;
  padding: 104px 0 96px;
  background: linear-gradient(140deg, rgba(15,30,46,0.96) 0%, rgba(24,46,70,0.84) 55%, rgba(30,58,86,0.68) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff;
  overflow: hidden;
}
.article-hero::before {
  content: '';
  position: absolute;
  right: -90px;
  top: -90px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.08), transparent 70%);
  pointer-events: none;
}
.article-hero::after {
  content: '';
  position: absolute;
  right: 150px;
  bottom: -60px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.12);
  pointer-events: none;
}
.hero-content { position: relative; z-index: 2; }
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.65);
  margin-bottom: 26px;
}
.breadcrumb a { color: rgba(255,255,255,0.75); text-decoration: none; transition: color 0.2s; }
.breadcrumb a:hover { color: #fff; }
.crumb-sep { color: rgba(255,255,255,0.4); }
.crumb-current { color: rgba(255,255,255,0.95); font-weight: 500; }
.hero-title {
  font-size: clamp(1.9rem, 4vw, 3.2rem);
  line-height: 1.28;
  font-weight: 800;
  max-width: 900px;
  margin: 0 0 22px;
  letter-spacing: -1px;
  color: #fff;
}
.hero-meta { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  background: rgba(255,255,255,0.14);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.18);
}
.badge-accent { background: var(--accent); color: #fff; border-color: transparent; box-shadow: 0 4px 14px rgba(217,119,54,0.4); }
.badge-soft {
  background: var(--primary-bg);
  color: var(--primary);
  border: 1px solid var(--border);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 12px;
}
.hero-date { font-size: 0.92rem; color: rgba(255,255,255,0.72); }
.hero-wave {
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 72px;
  z-index: 2;
  pointer-events: none;
}
.hero-wave svg { width: 100%; height: 100%; display: block; }

.article-body-section { padding: 56px 0 80px; }
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 40px;
  align-items: start;
}
.article-main { min-width: 0; display: flex; flex-direction: column; gap: 24px; }
.article-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 44px 52px;
  border: 1px solid var(--border);
}
.article-prose {
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--text-body);
  word-wrap: break-word;
}
.article-prose h1 { font-size: 1.9rem; color: var(--text-main); margin: 1.4em 0 0.6em; }
.article-prose h2 {
  font-size: 1.45rem;
  color: var(--text-main);
  margin: 1.5em 0 0.6em;
  position: relative;
  padding-left: 16px;
  line-height: 1.4;
}
.article-prose h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.12em;
  width: 4px;
  height: 1.05em;
  background: var(--accent);
  border-radius: 4px;
}
.article-prose h3 { font-size: 1.2rem; color: var(--text-main); margin: 1.4em 0 0.55em; }
.article-prose h4, .article-prose h5 { font-size: 1.05rem; color: var(--text-main); margin: 1.2em 0 0.5em; }
.article-prose p { margin: 0 0 1.2em; }
.article-prose ul, .article-prose ol { margin: 0 0 1.2em; padding-left: 1.6em; }
.article-prose li { margin-bottom: 0.35em; }
.article-prose li::marker { color: var(--accent); }
.article-prose a { color: var(--accent-dark); text-decoration: underline; text-underline-offset: 3px; }
.article-prose a:hover { opacity: 0.85; }
.article-prose blockquote {
  border-left: 4px solid var(--accent);
  background: var(--accent-soft);
  padding: 16px 22px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 0 0 1.2em;
  color: var(--text-main);
  font-style: normal;
}
.article-prose img { max-width: 100%; border-radius: var(--radius-md); margin: 1.5em 0; box-shadow: var(--shadow-sm); }
.article-prose pre {
  background: var(--primary);
  color: #e3e9ef;
  padding: 20px;
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin-bottom: 1.2em;
  line-height: 1.7;
}
.article-prose code {
  background: var(--primary-bg);
  color: var(--primary);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 0.9em;
}
.article-prose pre code { background: none; color: inherit; padding: 0; }
.article-prose table { width: 100%; border-collapse: collapse; margin: 1.5em 0; }
.article-prose th, .article-prose td { padding: 10px 14px; border: 1px solid var(--border); text-align: left; }
.article-prose th { background: var(--primary-bg); color: var(--primary); font-weight: 600; }
.article-prose hr { border: none; border-top: 1px solid var(--border); margin: 2em 0; }

.article-source {
  margin-top: 30px;
  padding: 16px 20px;
  background: var(--bg-body);
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--border);
}
.article-source i { color: var(--accent); }

.not-found-block { text-align: center; padding: 56px 20px; }
.not-found-icon { font-size: 2.6rem; color: var(--accent); display: block; margin-bottom: 14px; }
.not-found-block h2 { font-size: 1.5rem; color: var(--text-main); margin: 0 0 8px; }
.not-found-block p { color: var(--text-muted); margin: 0 0 24px; }
.muted { color: var(--text-muted); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  line-height: 1.4;
}
.btn:focus-visible { outline: 3px solid rgba(217,119,54,0.4); outline-offset: 2px; }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 8px 22px rgba(217,119,54,0.36); }
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 12px 28px rgba(217,119,54,0.42); }
.btn-outline { background: transparent; color: var(--accent-dark); border-color: var(--accent); }
.btn-outline:hover { background: var(--accent); color: #fff; transform: translateY(-2px); }
.btn-light { background: #fff; color: var(--primary); box-shadow: 0 6px 18px rgba(0,0,0,0.15); }
.btn-light:hover { background: #f0f2f5; transform: translateY(-2px); }
.btn-outline-white { background: transparent; color: #fff; border-color: rgba(255,255,255,0.5); }
.btn-outline-white:hover { background: rgba(255,255,255,0.12); border-color: #fff; transform: translateY(-2px); }
.btn-sm { padding: 8px 18px; font-size: 0.86rem; }

.article-side { display: flex; flex-direction: column; gap: 24px; position: sticky; top: calc(var(--header-h) + 24px); }
.side-widget {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.side-widget h3 {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 0 0 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.side-widget h3::after { content: ''; flex: 1; height: 1px; background: var(--border); }
.info-list { list-style: none; }
.info-list li { display: flex; justify-content: space-between; align-items: center; padding: 8px 0; border-bottom: 1px dashed var(--border); font-size: 0.93rem; }
.info-list li:last-child { border-bottom: none; }
.info-label { color: var(--text-muted); flex-shrink: 0; }
.info-value { color: var(--text-main); font-weight: 500; text-align: right; }
.about-widget { background: linear-gradient(160deg, var(--primary-bg), #ffffff); }
.widget-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  border-radius: 14px;
  font-size: 1.15rem;
  margin-bottom: 14px;
}
.about-widget p { font-size: 0.92rem; color: var(--text-body); margin: 0 0 18px; }
.latest-list { list-style: none; }
.latest-item {
  display: flex;
  flex-direction: column;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  transition: var(--transition);
}
.latest-item:last-child { border-bottom: none; }
.latest-item:hover { padding-left: 6px; }
.latest-title { font-weight: 500; color: var(--text-main); font-size: 0.93rem; line-height: 1.5; }
.latest-date { font-size: 0.78rem; color: var(--text-muted); margin-top: 2px; }

.related-section {
  background: var(--bg-soft);
  padding: 76px 0;
  border-top: 1px solid var(--border);
}
.section-head { text-align: center; max-width: 660px; margin: 0 auto 48px; }
.section-tag {
  display: inline-block;
  padding: 6px 18px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 600;
  margin-bottom: 14px;
}
.section-head h2 { font-size: clamp(1.55rem, 3vw, 2.1rem); color: var(--text-main); margin: 0 0 12px; line-height: 1.35; }
.section-head p { color: var(--text-muted); margin: 0; font-size: 0.95rem; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
  text-decoration: none;
  display: flex;
  flex-direction: column;
}
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.related-card:focus-visible { outline: 3px solid rgba(217,119,54,0.4); outline-offset: 2px; }
.related-cover { aspect-ratio: 16 / 9; overflow: hidden; background: var(--bg-soft); }
.related-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.related-card:hover .related-cover img { transform: scale(1.05); }
.related-body { padding: 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.related-body h3 { font-size: 1.02rem; color: var(--text-main); margin: 0; line-height: 1.5; font-weight: 600; }
.related-meta { display: flex; align-items: center; gap: 10px; font-size: 0.82rem; color: var(--text-muted); margin-top: auto; }
.empty-tip { text-align: center; color: var(--text-muted); padding: 30px; }

.faq-section { padding: 80px 0; background: var(--bg-white); }
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; max-width: 960px; margin: 0 auto; }
.faq-item {
  background: var(--bg-body);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow-sm); border-color: rgba(217,119,54,0.45); }
.faq-item h3 {
  font-size: 1rem;
  color: var(--text-main);
  margin: 0 0 8px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  line-height: 1.5;
}
.faq-item h3::before {
  content: 'Q';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  background: var(--accent-soft);
  color: var(--accent-dark);
  border-radius: 8px;
  font-size: 0.78rem;
  font-weight: 800;
  margin-top: 2px;
}
.faq-item p { margin: 0; font-size: 0.93rem; color: var(--text-body); line-height: 1.8; padding-left: 34px; }

.cta-section { padding: 80px 0; background: var(--primary); }
.cta-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  max-width: 1000px;
  margin: 0 auto;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--radius-lg);
  padding: 48px 52px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.cta-content h2 { color: #fff; font-size: 1.65rem; margin: 0 0 10px; line-height: 1.35; }
.cta-content p { color: rgba(255,255,255,0.72); margin: 0; font-size: 0.95rem; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; flex-shrink: 0; }

.site-footer { background: var(--primary); color: rgba(255,255,255,0.75); padding: 64px 0 96px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 48px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.12); }
.footer-brand .logo { color: #fff; }
.footer-brand .logo-mark { background: var(--accent); box-shadow: 0 4px 14px rgba(217,119,54,0.4); }
.footer-brand p { color: rgba(255,255,255,0.62); line-height: 1.8; margin: 16px 0 0; max-width: 380px; font-size: 0.92rem; }
.footer-col h4 { color: #fff; font-size: 0.95rem; font-weight: 600; margin: 0 0 16px; }
.footer-col a {
  display: block;
  color: rgba(255,255,255,0.62);
  text-decoration: none;
  padding: 5px 0;
  font-size: 0.9rem;
  transition: var(--transition);
}
.footer-col a:hover { color: #fff; padding-left: 4px; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-top: 28px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  flex-wrap: wrap;
}

.mobile-tabbar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid var(--border);
  padding: 8px 6px;
  padding-bottom: calc(env(safe-area-inset-bottom, 0) + 8px);
  box-shadow: 0 -4px 20px rgba(16,36,62,0.08);
}
.tab-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 500;
  padding: 4px 0;
  border-radius: 12px;
  transition: var(--transition);
}
.tab-item i { font-size: 1.18rem; line-height: 1; }
.tab-item span { line-height: 1.3; }
.tab-item:hover { color: var(--primary); background: var(--primary-bg); }
.tab-item.active { color: var(--primary); font-weight: 700; }
.tab-item.active i { transform: translateY(-1px); }

@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-side { position: static; display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: start; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-card { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 768px) {
  .desktop-nav { display: none; }
  .mobile-tabbar { display: flex; }
  body { padding-bottom: 66px; }
  .header-inner { height: 62px; }
  .logo { font-size: 1.12rem; }
  .logo-mark { width: 34px; height: 34px; border-radius: 10px; font-size: 1rem; }
  .article-hero { padding: 72px 0 74px; }
  .hero-title { font-size: 1.7rem; margin-bottom: 18px; }
  .article-body-section { padding: 36px 0 56px; }
  .article-card { padding: 28px 24px; border-radius: var(--radius-md); }
  .article-prose { font-size: 1rem; line-height: 1.85; }
  .article-side { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .faq-grid { grid-template-columns: 1fr; }
  .cta-section { padding: 56px 0; }
  .cta-card { padding: 30px 24px; border-radius: var(--radius-md); }
  .cta-content h2 { font-size: 1.3rem; }
  .site-footer { padding: 48px 0 80px; }
}

@media (max-width: 520px) {
  .container { padding-left: 18px; padding-right: 18px; }
  .article-hero { padding: 56px 0 60px; }
  .hero-title { font-size: 1.45rem; }
  .breadcrumb { font-size: 0.8rem; }
  .related-grid { grid-template-columns: 1fr; }
  .article-card { padding: 22px 18px; }
  .article-prose h2 { font-size: 1.25rem; }
  .article-prose h3 { font-size: 1.05rem; }
  .cta-card { padding: 24px 18px; }
  .cta-actions { width: 100%; }
  .cta-actions .btn { width: 100%; }
  .faq-item h3 { font-size: 0.94rem; }
  .faq-item p { padding-left: 0; margin-left: 34px; }
}