/* roulang page: index */
:root{
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --primary-light:#dbeafe;
  --accent:#0d9488;
  --accent-light:#ccfbf1;
  --bg:#f8fafc;
  --bg-white:#ffffff;
  --bg-soft:#f1f5f9;
  --text:#1e293b;
  --text-weak:#64748b;
  --text-light:#94a3b8;
  --border:#e2e8f0;
  --radius:14px;
  --radius-sm:8px;
  --shadow:0 4px 24px rgba(15,23,42,.06);
  --shadow-hover:0 12px 36px rgba(37,99,235,.12);
  --transition:all .25s ease;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{
  box-sizing:border-box;margin:0;padding:0;
}
html{
  scroll-behavior:smooth;
  -webkit-text-size-adjust:100%;
}
body{
  font-family:var(--font);
  font-size:16px;
  line-height:1.7;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{
  max-width:100%;height:auto;display:block;
}
a{
  color:inherit;text-decoration:none;
  transition:var(--transition);
}
button,input,select,textarea{
  font-family:inherit;font-size:inherit;
}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section-padding{
  padding:100px 0;
}
@media(max-width:768px){
  .section-padding{padding:64px 0;}
}
.section-head{
  text-align:center;
  max-width:680px;
  margin:0 auto 56px;
}
.section-head .section-tag{
  display:inline-block;
  background:var(--primary-light);
  color:var(--primary);
  font-size:13px;
  font-weight:600;
  padding:6px 18px;
  border-radius:999px;
  margin-bottom:16px;
  letter-spacing:.5px;
}
.section-head h2{
  font-size:34px;
  font-weight:700;
  line-height:1.3;
  color:var(--text);
  margin-bottom:14px;
}
.section-head p{
  font-size:16px;
  color:var(--text-weak);
  line-height:1.7;
}
@media(max-width:768px){
  .section-head h2{font-size:26px;}
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 32px;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:600;
  border:2px solid transparent;
  cursor:pointer;
  transition:var(--transition);
  line-height:1.4;
  text-align:center;
}
.btn-primary{
  background:var(--primary);
  color:#fff;
  box-shadow:0 4px 16px rgba(37,99,235,.24);
}
.btn-primary:hover{
  background:var(--primary-dark);
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(37,99,235,.32);
}
.btn-primary:active{
  transform:translateY(0);
}
.btn-outline{
  background:transparent;
  color:var(--primary);
  border-color:var(--primary);
}
.btn-outline:hover{
  background:var(--primary-light);
  transform:translateY(-2px);
}
.btn-outline-light{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.7);
}
.btn-outline-light:hover{
  background:rgba(255,255,255,.15);
  transform:translateY(-2px);
}
.btn-sm{
  padding:8px 20px;
  font-size:14px;
}
.btn:focus-visible{
  outline:3px solid var(--primary-light);
  outline-offset:2px;
}
.badge{
  display:inline-block;
  background:var(--primary-light);
  color:var(--primary);
  font-size:12px;
  font-weight:600;
  padding:4px 14px;
  border-radius:999px;
  line-height:1.4;
}
.badge-accent{
  background:var(--accent-light);
  color:var(--accent);
}
/* ===== Header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:999;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(226,232,240,.8);
  transition:var(--transition);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  gap:24px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:19px;
  font-weight:700;
  color:var(--text);
  white-space:nowrap;
}
.logo .logo-icon{
  width:38px;height:38px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  color:#fff;
  font-size:17px;
  font-weight:700;
  flex-shrink:0;
}
.logo span{
  background:linear-gradient(90deg,var(--primary),var(--accent));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:32px;
}
.main-nav a{
  font-size:15px;
  font-weight:500;
  color:var(--text-weak);
  position:relative;
  padding:6px 0;
}
.main-nav a:hover{
  color:var(--primary);
}
.main-nav a.active{
  color:var(--primary);
  font-weight:600;
}
.main-nav a.active::after{
  content:"";
  position:absolute;
  bottom:0;
  left:0;
  right:0;
  height:3px;
  background:var(--primary);
  border-radius:3px;
}
.header-cta{
  display:flex;
  align-items:center;
  gap:16px;
}
.search-box{
  display:flex;
  align-items:center;
  background:var(--bg-soft);
  border-radius:999px;
  padding:6px 16px;
  gap:8px;
  border:1px solid transparent;
  transition:var(--transition);
}
.search-box i{
  color:var(--text-light);
  font-size:13px;
}
.search-box input{
  border:none;
  background:transparent;
  outline:none;
  font-size:13px;
  width:120px;
  color:var(--text);
}
.search-box:focus-within{
  border-color:var(--primary);
  background:#fff;
}
/* ===== Mobile Tabbar ===== */
.mobile-tabbar{
  display:none;
}
/* ===== Hero ===== */
.hero{
  position:relative;
  background:
    linear-gradient(135deg,rgba(29,78,216,.93),rgba(13,148,136,.88)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#fff;
  padding:120px 0 110px;
  min-height:520px;
  display:flex;
  align-items:center;
}
.hero-content{
  max-width:680px;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,.18);
  border:1px solid rgba(255,255,255,.25);
  color:#fff;
  font-size:13px;
  font-weight:500;
  padding:7px 20px;
  border-radius:999px;
  margin-bottom:24px;
  backdrop-filter:blur(8px);
}
.hero h1{
  font-size:52px;
  font-weight:800;
  line-height:1.2;
  margin-bottom:20px;
  letter-spacing:-.5px;
}
.hero h1 .highlight{
  position:relative;
  display:inline-block;
}
.hero-subtitle{
  font-size:18px;
  line-height:1.7;
  color:rgba(255,255,255,.9);
  margin-bottom:36px;
  max-width:520px;
}
.hero-actions{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  margin-bottom:40px;
}
.hero-trust{
  display:flex;
  gap:28px;
  flex-wrap:wrap;
  font-size:14px;
  color:rgba(255,255,255,.85);
}
.hero-trust i{
  margin-right:6px;
  color:#86efac;
}
@media(max-width:768px){
  .hero{padding:80px 0;}
  .hero h1{font-size:36px;}
  .hero-subtitle{font-size:16px;}
  .hero-actions{flex-direction:column;align-items:flex-start;}
}
/* ===== Features ===== */
.features{
  background:var(--bg-white);
}
.feature-card{
  background:var(--bg-white);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:36px 32px;
  height:100%;
  transition:var(--transition);
  text-align:center;
}
.feature-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-6px);
  border-color:var(--primary-light);
}
.feature-icon{
  width:64px;height:64px;
  background:var(--primary-light);
  color:var(--primary);
  border-radius:18px;
  display:flex;align-items:center;justify-content:center;
  font-size:26px;
  margin:0 auto 20px;
  transition:var(--transition);
}
.feature-card:hover .feature-icon{
  background:var(--primary);
  color:#fff;
  transform:scale(1.06);
}
.feature-card h3{
  font-size:19px;
  font-weight:700;
  margin-bottom:12px;
}
.feature-card p{
  font-size:14px;
  color:var(--text-weak);
  line-height:1.7;
}
@media(max-width:768px){
  .feature-card{padding:28px 24px;}
}
/* ===== Category Entry ===== */
.category-entry{
  background:var(--bg);
}
.cat-card{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  background:#fff;
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  transition:var(--transition);
  height:100%;
  display:flex;
  flex-direction:column;
}
.cat-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-6px);
}
.cat-card-img{
  position:relative;
  height:220px;
  overflow:hidden;
}
.cat-card-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}
.cat-card:hover .cat-card-img img{
  transform:scale(1.05);
}
.cat-card-img::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(to top,rgba(15,23,42,.35),transparent 50%);
}
.cat-card-body{
  padding:32px 28px 36px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.cat-card-body .badge{
  align-self:flex-start;
  margin-bottom:14px;
}
.cat-card-body h3{
  font-size:22px;
  font-weight:700;
  margin-bottom:10px;
}
.cat-card-body p{
  font-size:14px;
  color:var(--text-weak);
  line-height:1.7;
  margin-bottom:20px;
  flex:1;
}
.cat-card-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  color:var(--primary);
}
.cat-card-link i{
  transition:transform .3s ease;
}
.cat-card-link:hover{
  color:var(--primary-dark);
}
.cat-card-link:hover i{
  transform:translateX(4px);
}
@media(max-width:768px){
  .cat-card-img{height:180px;}
  .cat-card-body{padding:24px 20px 28px;}
}
/* ===== Latest Posts ===== */
.latest-posts{
  background:var(--bg-white);
}
.post-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.post-card{
  background:var(--bg-white);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:28px 26px;
  transition:var(--transition);
  display:flex;
  flex-direction:column;
}
.post-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
  border-color:var(--primary-light);
}
.post-meta{
  display:flex;
  align-items:center;
  gap:16px;
  margin-bottom:14px;
}
.post-meta time{
  font-size:12px;
  color:var(--text-light);
}
.post-card h3{
  font-size:18px;
  font-weight:650;
  line-height:1.5;
  margin-bottom:12px;
}
.post-card h3 a{
  color:var(--text);
}
.post-card h3 a:hover{
  color:var(--primary);
}
.post-card p{
  font-size:14px;
  color:var(--text-weak);
  line-height:1.7;
  flex:1;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-card .read-more{
  margin-top:18px;
  font-size:14px;
  color:var(--primary);
  font-weight:600;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.post-card .read-more i{
  transition:transform .3s;
}
.post-card .read-more:hover i{
  transform:translateX(4px);
}
.empty-tip{
  grid-column:1/-1;
  text-align:center;
  padding:60px 20px;
  color:var(--text-weak);
  background:var(--bg-soft);
  border-radius:var(--radius);
  font-size:16px;
}
@media(max-width:900px){
  .post-grid{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:600px){
  .post-grid{grid-template-columns:1fr;}
}
/* ===== Stats ===== */
.stats{
  background:
    linear-gradient(rgba(15,23,42,.88),rgba(15,23,42,.88)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color:#fff;
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:40px;
  text-align:center;
}
.stat-item .stat-num{
  font-size:42px;
  font-weight:800;
  line-height:1.2;
  color:#fff;
  margin-bottom:6px;
}
.stat-item .stat-label{
  font-size:14px;
  color:rgba(255,255,255,.7);
}
@media(max-width:900px){
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
  .stat-item .stat-num{font-size:34px;}
}
@media(max-width:520px){
  .stats-grid{grid-template-columns:1fr 1fr;}
}
/* ===== Process ===== */
.process{
  background:var(--bg);
}
.process-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:28px;
  counter-reset:process;
}
.process-step{
  background:var(--bg-white);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:36px 28px;
  text-align:center;
  position:relative;
  transition:var(--transition);
}
.process-step:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
}
.process-step::before{
  counter-increment:process;
  content:counter(process,decimal-leading-zero);
  display:block;
  font-size:14px;
  font-weight:700;
  color:var(--primary);
  background:var(--primary-light);
  width:36px;height:36px;
  border-radius:50%;
  line-height:36px;
  margin:0 auto 18px;
}
.process-step .step-icon{
  font-size:32px;
  color:var(--primary);
  margin-bottom:16px;
}
.process-step h3{
  font-size:17px;
  font-weight:700;
  margin-bottom:10px;
}
.process-step p{
  font-size:13px;
  color:var(--text-weak);
  line-height:1.65;
}
@media(max-width:900px){
  .process-grid{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:520px){
  .process-grid{grid-template-columns:1fr;}
}
/* ===== FAQ ===== */
.faq{
  background:var(--bg-white);
}
.faq-list{
  max-width:800px;
  margin:0 auto;
}
.faq-item{
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:var(--bg-white);
  margin-bottom:16px;
  overflow:hidden;
  transition:var(--transition);
}
.faq-item:hover{
  border-color:var(--primary-light);
  box-shadow:var(--shadow);
}
.faq-question{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:22px 28px;
  background:transparent;
  border:none;
  cursor:pointer;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  text-align:left;
  transition:var(--transition);
}
.faq-question i{
  font-size:14px;
  color:var(--primary);
  transition:transform .3s ease;
  flex-shrink:0;
}
.faq-item.active .faq-question i{
  transform:rotate(180deg);
}
.faq-item.active .faq-question{
  color:var(--primary);
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease;
}
.faq-answer-inner{
  padding:0 28px 22px;
  font-size:15px;
  color:var(--text-weak);
  line-height:1.75;
}
.faq-answer-inner a{
  color:var(--primary);
  font-weight:600;
}
@media(max-width:768px){
  .faq-question{padding:18px 20px;font-size:15px;}
  .faq-answer-inner{padding:0 20px 18px;font-size:14px;}
}
/* ===== CTA ===== */
.cta-section{
  position:relative;
  background:
    linear-gradient(135deg,rgba(29,78,216,.92),rgba(13,148,136,.9)),
    url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  color:#fff;
  text-align:center;
  padding:100px 0;
}
.cta-section h2{
  font-size:36px;
  font-weight:800;
  margin-bottom:16px;
}
.cta-section p{
  font-size:17px;
  color:rgba(255,255,255,.9);
  max-width:520px;
  margin:0 auto 36px;
}
.cta-form{
  display:flex;
  max-width:480px;
  margin:0 auto;
  background:rgba(255,255,255,.15);
  border:1px solid rgba(255,255,255,.25);
  border-radius:999px;
  padding:6px;
  backdrop-filter:blur(10px);
}
.cta-form input{
  flex:1;
  background:transparent;
  border:none;
  outline:none;
  color:#fff;
  font-size:15px;
  padding:8px 18px;
  min-width:0;
}
.cta-form input::placeholder{
  color:rgba(255,255,255,.65);
}
.cta-form button{
  background:#fff;
  color:var(--primary);
  border:none;
  border-radius:999px;
  padding:10px 28px;
  font-size:15px;
  font-weight:700;
  cursor:pointer;
  transition:var(--transition);
  white-space:nowrap;
}
.cta-form button:hover{
  transform:scale(1.03);
  box-shadow:0 4px 16px rgba(255,255,255,.3);
}
.cta-note{
  font-size:13px;
  color:rgba(255,255,255,.65);
  margin-top:18px;
}
@media(max-width:600px){
  .cta-form{
    flex-direction:column;
    border-radius:20px;
    padding:16px;
    background:rgba(255,255,255,.12);
  }
  .cta-form input{
    text-align:center;
    margin-bottom:10px;
    padding:10px;
  }
  .cta-form button{
    width:100%;
  }
}
/* ===== Footer ===== */
.site-footer{
  background:#0f172a;
  color:#94a3b8;
  padding:60px 0 30px;
}
.footer-brand{
  font-size:20px;
  font-weight:700;
  color:#fff;
  margin-bottom:12px;
  display:inline-flex;
  align-items:center;
  gap:10px;
}
.footer-brand .logo-icon{
  width:34px;height:34px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:15px;
}
.footer-desc{
  font-size:14px;
  line-height:1.7;
  color:var(--text-light);
  max-width:280px;
}
.footer-heading{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:18px;
}
.footer-links{
  list-style:none;
}
.footer-links li{
  margin-bottom:10px;
}
.footer-links a{
  font-size:14px;
  color:var(--text-light);
  transition:var(--transition);
}
.footer-links a:hover{
  color:#fff;
  padding-left:4px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  margin-top:50px;
  padding-top:24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
}
.footer-bottom p{
  font-size:13px;
  color:var(--text-light);
}
.footer-bottom a{
  color:var(--text-light);
}
@media(max-width:768px){
  .footer-bottom{flex-direction:column;text-align:center;}
}
/* ===== Responsive Navigation ===== */
@media(max-width:768px){
  .main-nav{
    display:none;
  }
  .header-cta .btn{
    display:none;
  }
  .mobile-tabbar{
    display:flex;
    position:fixed;
    bottom:0;
    left:0;
    right:0;
    z-index:1000;
    background:rgba(255,255,255,.96);
    backdrop-filter:blur(16px);
    border-top:1px solid var(--border);
    padding:8px 0 calc(8px + env(safe-area-inset-bottom));
  }
  .mobile-tabbar .tab-item{
    flex:1;
    display:flex;
    flex-direction:column;
    align-items:center;
    gap:4px;
    padding:4px 0;
    font-size:11px;
    color:var(--text-light);
    transition:var(--transition);
    border-radius:10px;
  }
  .mobile-tabbar .tab-item i{
    font-size:18px;
  }
  .mobile-tabbar .tab-item.active{
    color:var(--primary);
    background:var(--primary-light);
    font-weight:600;
  }
  body{
    padding-bottom:64px;
  }
  .site-header{
    height:auto;
  }
  .header-inner{
    height:60px;
  }
  .logo{
    font-size:16px;
  }
  .logo .logo-icon{
    width:32px;height:32px;
    font-size:14px;
  }
}
@media(max-width:520px){
  .container{
    padding:0 18px;
  }
  .section-head h2{
    font-size:24px;
  }
  .hero h1{
    font-size:30px;
  }
  .hero-actions .btn{
    width:100%;
  }
  .cta-section h2{
    font-size:28px;
  }
}
@media(max-width:1024px){
  .stats-grid{
    grid-template-columns:repeat(2,1fr);
  }
}

/* roulang page: category1 */
:root {
  --primary: #2D6A4F;
  --primary-dark: #1B4332;
  --primary-light: #40916C;
  --accent: #52B788;
  --accent-soft: #D8F3DC;
  --bg: #F8F9FA;
  --bg-alt: #F1F5F3;
  --text: #1E2A24;
  --text-muted: #5A6E62;
  --text-light: #8A9A90;
  --border: #E2E8E4;
  --white: #FFFFFF;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 8px rgba(27, 67, 50, 0.06);
  --shadow-md: 0 8px 30px rgba(27, 67, 50, 0.10);
  --shadow-lg: 0 16px 48px rgba(27, 67, 50, 0.14);
  --transition: all 0.3s ease;
  --container: 1200px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif; background: var(--bg); color: var(--text); line-height: 1.7; font-size: 16px; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; width: 100%; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 28px; border-radius: 50px; font-size: 15px; font-weight: 600; border: none; cursor: pointer; transition: var(--transition); text-align: center; line-height: 1.4; }
.btn-primary { background: var(--primary); color: var(--white); box-shadow: 0 4px 16px rgba(45, 106, 79, 0.25); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 6px 24px rgba(27, 67, 50, 0.32); }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--accent-soft); transform: translateY(-2px); }
.btn-light { background: var(--white); color: var(--primary-dark); box-shadow: var(--shadow-sm); }
.btn-light:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-sm { padding: 8px 20px; font-size: 14px; }
.section-pad { padding: 100px 0; }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--accent); }

/* ===== Header ===== */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,0.92); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); transition: var(--transition); }
.site-header.scrolled { box-shadow: 0 4px 24px rgba(27,67,50,0.08); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 24px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; color: var(--text); letter-spacing: 0.5px; }
.logo-icon { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 12px; background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; font-size: 20px; font-weight: 900; box-shadow: 0 4px 12px rgba(45,106,79,0.3); }
.main-nav { display: flex; align-items: center; gap: 32px; }
.main-nav a { font-size: 15px; font-weight: 500; color: var(--text-muted); position: relative; padding: 8px 4px; }
.main-nav a:hover { color: var(--primary); }
.main-nav a.active { color: var(--primary); font-weight: 700; }
.main-nav a.active::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 3px; border-radius: 3px; background: linear-gradient(90deg, var(--primary), var(--accent)); }
.header-cta { display: flex; align-items: center; gap: 16px; }
.search-box { display: flex; align-items: center; gap: 10px; background: var(--bg-alt); border: 1px solid var(--border); border-radius: 50px; padding: 8px 16px; width: 220px; transition: var(--transition); }
.search-box:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(82,183,136,0.15); }
.search-box i { color: var(--text-light); font-size: 14px; }
.search-box input { border: none; background: transparent; outline: none; font-size: 14px; width: 100%; color: var(--text); }
.search-box input::placeholder { color: var(--text-light); }

/* ===== Mobile Bottom Tab ===== */
.mobile-tabbar { position: fixed; bottom: 0; left: 0; right: 0; background: rgba(255,255,255,0.97); backdrop-filter: blur(16px); border-top: 1px solid var(--border); display: flex; justify-content: space-around; align-items: center; height: 64px; z-index: 99; box-shadow: 0 -4px 20px rgba(27,67,50,0.06); transform: translateY(100%); }
.tab-item { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; font-size: 12px; color: var(--text-muted); padding: 8px 16px; border-radius: 12px; transition: var(--transition); }
.tab-item i { font-size: 20px; }
.tab-item.active { color: var(--primary); font-weight: 700; background: var(--accent-soft); }
.tab-item:hover { color: var(--primary); }

/* ===== Page Hero Banner ===== */
.page-banner { position: relative; padding: 120px 0 90px; background: linear-gradient(135deg, rgba(27,67,50,0.92), rgba(45,106,79,0.85)), url('/assets/images/backpic/back-1.png'); background-size: cover; background-position: center; color: var(--white); overflow: hidden; }
.page-banner::after { content: ''; position: absolute; bottom: -60px; right: -40px; width: 280px; height: 280px; border-radius: 50%; background: rgba(82,183,136,0.18); filter: blur(60px); }
.page-banner .banner-inner { position: relative; z-index: 2; max-width: 780px; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 14px; color: rgba(255,255,255,0.7); margin-bottom: 20px; }
.breadcrumb a:hover { color: var(--white); }
.breadcrumb i { font-size: 12px; color: rgba(255,255,255,0.4); }
.page-banner h1 { font-size: 48px; font-weight: 800; line-height: 1.2; margin-bottom: 20px; letter-spacing: 1px; }
.page-banner p { font-size: 18px; line-height: 1.8; color: rgba(255,255,255,0.85); margin-bottom: 32px; }
.banner-badges { display: flex; gap: 12px; flex-wrap: wrap; }
.badge-pill { display: inline-flex; align-items: center; gap: 8px; padding: 8px 20px; border-radius: 50px; background: rgba(255,255,255,0.16); border: 1px solid rgba(255,255,255,0.25); font-size: 14px; font-weight: 500; backdrop-filter: blur(8px); }
.badge-pill i { color: var(--accent); }

/* ===== Quick Steps Section ===== */
.quick-steps { padding: 90px 0 70px; }
.section-label { display: inline-flex; align-items: center; gap: 8px; background: var(--accent-soft); color: var(--primary); padding: 6px 18px; border-radius: 50px; font-size: 13px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 16px; }
.section-title { font-size: 38px; font-weight: 800; line-height: 1.25; margin-bottom: 16px; color: var(--text); letter-spacing: 0.5px; }
.section-subtitle { font-size: 16px; color: var(--text-muted); max-width: 640px; line-height: 1.8; }
.step-card { background: var(--white); border-radius: var(--radius); padding: 32px 28px; border: 1px solid var(--border); position: relative; transition: var(--transition); height: 100%; box-shadow: var(--shadow-sm); }
.step-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--accent); }
.step-number { display: flex; align-items: center; justify-content: center; width: 56px; height: 56px; border-radius: 16px; background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; font-size: 22px; font-weight: 800; margin-bottom: 20px; box-shadow: 0 6px 20px rgba(45,106,79,0.25); }
.step-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; color: var(--text); }
.step-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.step-tag { display: inline-block; margin-top: 16px; padding: 4px 14px; border-radius: 30px; background: var(--accent-soft); color: var(--primary); font-size: 12px; font-weight: 600; }

/* ===== Platform Section ===== */
.platform-section { background: var(--bg-alt); padding: 90px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.platform-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-top: 50px; }
.platform-card { background: var(--white); border-radius: var(--radius); padding: 36px 30px; text-align: center; border: 1px solid var(--border); transition: var(--transition); box-shadow: var(--shadow-sm); }
.platform-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--accent); }
.platform-icon { width: 70px; height: 70px; margin: 0 auto 20px; border-radius: 20px; display: flex; align-items: center; justify-content: center; font-size: 30px; background: linear-gradient(135deg, var(--accent-soft), #E8F5EC); color: var(--primary); }
.platform-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 12px; }
.platform-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* ===== Detail Guide Section ===== */
.guide-section { padding: 90px 0; }
.guide-layout { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 50px; align-items: start; }
.guide-content { background: var(--white); border-radius: var(--radius); padding: 40px; border: 1px solid var(--border); box-shadow: var(--shadow-sm); }
.guide-content h2 { font-size: 26px; font-weight: 700; margin-bottom: 20px; color: var(--text); display: flex; align-items: center; gap: 12px; }
.guide-content h2 i { color: var(--primary); }
.guide-content p { font-size: 15px; color: var(--text-muted); line-height: 1.8; margin-bottom: 16px; }
.guide-content ol { list-style: none; counter-reset: guide; margin: 20px 0; }
.guide-content ol li { counter-increment: guide; padding: 16px 0; border-bottom: 1px solid var(--border); display: flex; gap: 16px; align-items: flex-start; }
.guide-content ol li::before { content: counter(guide); flex-shrink: 0; width: 32px; height: 32px; border-radius: 10px; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 14px; margin-top: 4px; }
.guide-content ol li:last-child { border-bottom: none; }
.guide-content ol li strong { display: block; font-size: 17px; color: var(--text); margin-bottom: 6px; }
.guide-content ol li span { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.guide-sidebar { display: flex; flex-direction: column; gap: 24px; }
.tip-card { background: linear-gradient(135deg, var(--accent-soft), #F0FAF3); border-radius: var(--radius); padding: 28px; border: 1px solid rgba(82,183,136,0.3); }
.tip-card h4 { font-size: 18px; font-weight: 700; margin-bottom: 12px; color: var(--primary-dark); display: flex; align-items: center; gap: 8px; }
.tip-card p { font-size: 14px; color: var(--text-muted); line-height: 1.8; }
.security-card { background: var(--white); border-radius: var(--radius); padding: 28px; border: 1px solid var(--border); box-shadow: var(--shadow-sm); }
.security-card h4 { font-size: 18px; font-weight: 700; margin-bottom: 16px; color: var(--text); display: flex; align-items: center; gap: 8px; }
.security-list { display: flex; flex-direction: column; gap: 12px; }
.security-list li { display: flex; align-items: center; gap: 12px; font-size: 14px; color: var(--text-muted); }
.security-list li i { color: var(--accent); font-size: 16px; }

/* ===== Feature Cards ===== */
.feature-section { background: var(--bg-alt); padding: 90px 0; border-top: 1px solid var(--border); }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-top: 50px; }
.feature-card { background: var(--white); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); transition: var(--transition); box-shadow: var(--shadow-sm); display: flex; flex-direction: column; }
.feature-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.feature-card .cover-img { height: 200px; overflow: hidden; position: relative; }
.feature-card .cover-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.feature-card:hover .cover-img img { transform: scale(1.05); }
.feature-card .cover-img::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 40%; background: linear-gradient(to top, rgba(0,0,0,0.2), transparent); }
.feature-card .card-label { position: absolute; top: 16px; left: 16px; z-index: 2; background: rgba(255,255,255,0.92); backdrop-filter: blur(8px); padding: 6px 16px; border-radius: 30px; font-size: 12px; font-weight: 600; color: var(--primary); }
.feature-card .card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; line-height: 1.4; }
.feature-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; flex: 1; }
.card-meta { display: flex; align-items: center; justify-content: space-between; margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--border); }
.card-meta span { font-size: 13px; color: var(--text-light); display: flex; align-items: center; gap: 6px; }
.card-meta .read-more { font-size: 14px; font-weight: 600; color: var(--primary); }
.card-meta .read-more:hover { gap: 8px; color: var(--primary-dark); }
.card-meta .read-more i { font-size: 12px; }

/* ===== Statistics ===== */
.stats-section { padding: 90px 0; background: linear-gradient(135deg, var(--primary-dark), var(--primary)); color: var(--white); position: relative; overflow: hidden; }
.stats-section::before { content: ''; position: absolute; top: -80px; right: -80px; width: 300px; height: 300px; border-radius: 50%; background: rgba(255,255,255,0.06); }
.stats-section::after { content: ''; position: absolute; bottom: -40px; left: 20%; width: 180px; height: 180px; border-radius: 50%; background: rgba(82,183,136,0.2); filter: blur(40px); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; position: relative; z-index: 2; }
.stat-item { text-align: center; padding: 20px; }
.stat-number { font-size: 48px; font-weight: 800; margin-bottom: 8px; background: linear-gradient(90deg, #fff, var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.stat-label { font-size: 15px; color: rgba(255,255,255,0.75); }
.stat-item i { font-size: 28px; margin-bottom: 12px; color: var(--accent); display: block; }

/* ===== FAQ Section ===== */
.faq-section { padding: 90px 0; background: var(--bg); }
.faq-container { max-width: 860px; margin: 50px auto 0; }
.faq-item { background: var(--white); border-radius: var(--radius); margin-bottom: 16px; border: 1px solid var(--border); overflow: hidden; transition: var(--transition); box-shadow: var(--shadow-sm); }
.faq-item:hover { border-color: var(--accent); box-shadow: var(--shadow-md); }
.faq-item.active { border-color: var(--accent); }
.faq-question { padding: 20px 28px; display: flex; align-items: center; justify-content: space-between; cursor: pointer; font-size: 16px; font-weight: 600; color: var(--text); transition: var(--transition); }
.faq-question:hover { color: var(--primary); }
.faq-question i { font-size: 18px; color: var(--accent); transition: transform 0.3s ease; flex-shrink: 0; margin-left: 16px; }
.faq-item.active .faq-question i { transform: rotate(45deg); }
.faq-question .q-icon { width: 32px; height: 32px; border-radius: 8px; background: var(--accent-soft); display: flex; align-items: center; justify-content: center; color: var(--primary); font-size: 14px; margin-right: 14px; flex-shrink: 0; }
.faq-question-text { flex: 1; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-item.active .faq-answer { max-height: 500px; }
.faq-answer-inner { padding: 0 28px 24px 74px; font-size: 15px; color: var(--text-muted); line-height: 1.8; }

/* ===== CTA Section ===== */
.cta-section { padding: 90px 0; background: linear-gradient(135deg, var(--primary-dark), var(--primary)); position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: url('/assets/images/backpic/back-2.png') center/cover no-repeat; opacity: 0.15; }
.cta-inner { position: relative; z-index: 2; text-align: center; max-width: 720px; margin: 0 auto; }
.cta-inner h2 { font-size: 38px; font-weight: 800; color: var(--white); margin-bottom: 16px; }
.cta-inner p { font-size: 17px; color: rgba(255,255,255,0.8); margin-bottom: 32px; line-height: 1.8; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== Footer ===== */
.site-footer { background: var(--primary-dark); color: rgba(255,255,255,0.8); padding: 70px 0 0; position: relative; }
.site-footer::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary)); }
.footer-brand { display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 800; color: #fff; margin-bottom: 16px; }
.footer-desc { font-size: 14px; color: rgba(255,255,255,0.6); line-height: 1.8; max-width: 320px; }
.footer-heading { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 20px; padding-bottom: 10px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,0.6); transition: var(--transition); }
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-links li { display: flex; align-items: center; font-size: 14px; color: rgba(255,255,255,0.6); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 20px 0; margin-top: 50px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,0.4); margin: 0; }

/* ===== Mobile Breakpoints ===== */
@media (max-width: 1024px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .guide-layout { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .search-box { width: 180px; }
  .main-nav { gap: 20px; }
}
@media (max-width: 768px) {
  .section-pad { padding: 70px 0; }
  .section-title { font-size: 30px; }
  .page-banner { padding: 100px 0 70px; }
  .page-banner h1 { font-size: 36px; }
  .page-banner p { font-size: 16px; }
  .header-inner { height: 64px; }
  .main-nav { display: none; }
  .header-cta .btn { display: none; }
  .header-cta .search-box { width: 48px; padding: 8px; justify-content: center; border-radius: 50%; }
  .header-cta .search-box input { display: none; }
  .header-cta .search-box i { font-size: 18px; }
  .mobile-tabbar { transform: translateY(0); }
  body { padding-bottom: 64px; }
  .platform-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .feature-grid { grid-template-columns: 1fr; gap: 20px; }
  .guide-content { padding: 24px; }
  .guide-content h2 { font-size: 22px; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .stat-number { font-size: 36px; }
  .footer-bottom { flex-direction: column; text-align: center; justify-content: center; }
  .cta-inner h2 { font-size: 30px; }
  .step-card { padding: 24px 20px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .page-banner h1 { font-size: 30px; }
  .section-title { font-size: 26px; }
  .platform-grid { grid-template-columns: 1fr; }
  .banner-badges .badge-pill { font-size: 13px; }
  .footer-brand { font-size: 18px; }
}

/* roulang page: article */
:root {
  --primary: #0b1b3a;
  --primary-light: #142a52;
  --primary-dark: #060f21;
  --accent: #f0a500;
  --accent-light: #ffc63d;
  --accent-dark: #d48a00;
  --bg: #f4f7fb;
  --bg-alt: #eaf0f7;
  --surface: #ffffff;
  --text: #182135;
  --text-muted: #5b6b82;
  --border: #e2e8f0;
  --success: #10b981;
  --radius: 18px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(11, 27, 58, 0.07);
  --shadow-lg: 0 24px 60px rgba(11, 27, 58, 0.14);
  --transition: all .3s cubic-bezier(.25, .46, .45, .94);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  font-size: 16px; line-height: 1.75; color: var(--text); background: var(--bg);
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible { outline: 3px solid rgba(240, 165, 0, .5); outline-offset: 2px; }
ul, ol { list-style: none; margin: 0; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.section-head .section-badge { display: inline-block; padding: 4px 16px; border-radius: 100px; background: rgba(240, 165, 0, .12); color: var(--accent-dark); font-size: 13px; font-weight: 600; letter-spacing: 1px; margin-bottom: 12px; }
.section-head h2 { font-size: 34px; font-weight: 800; line-height: 1.25; color: var(--primary); margin-bottom: 10px; }
.section-head p { font-size: 16px; color: var(--text-muted); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 32px; border-radius: 50px; font-size: 15px; font-weight: 600; border: 2px solid transparent; cursor: pointer; transition: var(--transition); text-align: center; line-height: 1.4; }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 8px 24px rgba(240, 165, 0, .35); }
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 12px 30px rgba(212, 138, 0, .4); }
.btn-secondary { background: var(--primary); color: #fff; box-shadow: 0 8px 20px rgba(11, 27, 58, .25); }
.btn-secondary:hover { background: var(--primary-light); transform: translateY(-2px); }
.btn-outline { border-color: var(--border); color: var(--text); background: #fff; }
.btn-outline:hover { border-color: var(--accent); color: var(--accent-dark); background: rgba(240, 165, 0, .04); }
.btn-light { background: #fff; color: var(--primary); box-shadow: 0 8px 24px rgba(0, 0, 0, .12); }
.btn-light:hover { background: var(--accent); color: #fff; transform: translateY(-2px); }
.btn-sm { padding: 9px 20px; font-size: 13px; }
.btn-lg { padding: 16px 40px; font-size: 17px; }

/* Badge */
.badge { display: inline-block; padding: 4px 14px; border-radius: 100px; font-size: 12px; font-weight: 600; line-height: 1.5; }
.badge-soft { background: rgba(240, 165, 0, .14); color: var(--accent-dark); }
.badge-blue { background: rgba(11, 27, 58, .08); color: var(--primary); }
.badge-green { background: rgba(16, 185, 129, .14); color: #0a8a62; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255, 255, 255, .94); backdrop-filter: blur(18px); border-bottom: 1px solid var(--border); box-shadow: 0 2px 12px rgba(0, 0, 0, .04); }
.header-inner { display: flex; align-items: center; gap: 28px; height: 76px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; color: var(--primary); white-space: nowrap; }
.logo-icon { width: 38px; height: 38px; border-radius: 12px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: 900; box-shadow: 0 6px 16px rgba(11, 27, 58, .25); }
.main-nav { display: flex; gap: 6px; margin-left: auto; }
.main-nav a { padding: 9px 18px; border-radius: 100px; font-size: 14px; font-weight: 500; color: var(--text-muted); }
.main-nav a:hover { color: var(--primary); background: rgba(11, 27, 58, .05); }
.main-nav a.active { color: var(--primary); background: rgba(11, 27, 58, .08); font-weight: 700; }
.header-cta { display: flex; align-items: center; gap: 14px; }
.search-box { display: flex; align-items: center; background: var(--bg); border: 1px solid var(--border); border-radius: 100px; padding: 0 14px; height: 40px; width: 200px; gap: 8px; transition: var(--transition); }
.search-box:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(240, 165, 0, .12); background: #fff; }
.search-box i { font-size: 13px; color: var(--text-muted); }
.search-box input { border: none; outline: none; background: transparent; font-size: 13px; color: var(--text); width: 100%; }
.search-box input::placeholder { color: #a0aec0; }

/* Mobile bottom tab */
.bottom-tab-bar { display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 9999; background: rgba(255, 255, 255, .98); backdrop-filter: blur(20px); border-top: 1px solid var(--border); box-shadow: 0 -6px 30px rgba(0, 0, 0, .06); padding: 6px 4px calc(6px + env(safe-area-inset-bottom)); }
.tab-item { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 3px; padding: 8px 4px; border-radius: 14px; font-size: 11px; color: var(--text-muted); transition: var(--transition); }
.tab-item i { font-size: 18px; }
.tab-item.active { color: var(--accent-dark); background: rgba(240, 165, 0, .08); }
.tab-item:hover { color: var(--primary); background: rgba(11, 27, 58, .05); }

/* Page Hero */
.page-hero { position: relative; padding: 90px 0 70px; background: linear-gradient(135deg, rgba(6, 15, 33, .92), rgba(11, 27, 58, .82)), url('/assets/images/backpic/back-1.png') center/cover no-repeat; color: #fff; overflow: hidden; }
.page-hero::after { content: ''; position: absolute; right: -100px; top: -100px; width: 400px; height: 400px; border-radius: 50%; background: radial-gradient(circle, rgba(240, 165, 0, .15), transparent 70%); pointer-events: none; }
.page-hero .container { position: relative; z-index: 2; max-width: 880px; }
.hero-breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 22px; font-size: 13px; opacity: .75; }
.hero-breadcrumb a:hover { color: var(--accent-light); }
.hero-breadcrumb i { font-size: 10px; color: rgba(255, 255, 255, .4); }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(240, 165, 0, .2); border: 1px solid rgba(240, 165, 0, .35); color: var(--accent-light); padding: 5px 18px; border-radius: 100px; font-size: 13px; font-weight: 600; margin-bottom: 18px; }
.hero-title { font-size: 42px; font-weight: 900; line-height: 1.3; margin-bottom: 16px; letter-spacing: -1px; }
.hero-desc { font-size: 17px; line-height: 1.7; color: rgba(255, 255, 255, .85); max-width: 640px; margin-bottom: 24px; }
.hero-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 20px; font-size: 14px; color: rgba(255, 255, 255, .65); }
.hero-meta i { margin-right: 5px; color: var(--accent-light); }

/* Content Layout */
.content-section { padding: 70px 0 50px; }
.article-main { animation: fadeUp .6s ease both; }
.article-card { background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow); padding: 46px; margin-bottom: 30px; border: 1px solid rgba(226, 232, 240, .5); }
.article-content { font-size: 16px; line-height: 2; color: #333f52; word-break: break-word; }
.article-content h2 { font-size: 26px; color: var(--primary); margin: 40px 0 16px; font-weight: 800; line-height: 1.4; position: relative; padding-left: 18px; }
.article-content h2::before { content: ''; position: absolute; left: 0; top: 6px; bottom: 6px; width: 4px; border-radius: 4px; background: linear-gradient(180deg, var(--accent), var(--accent-dark)); }
.article-content h3 { font-size: 21px; color: var(--primary); margin: 32px 0 12px; font-weight: 700; }
.article-content p { margin: 0 0 18px; }
.article-content ul, .article-content ol { margin: 0 0 20px; padding-left: 24px; }
.article-content ul li, .article-content ol li { position: relative; margin-bottom: 10px; padding-left: 6px; }
.article-content ul li::before { content: ''; position: absolute; left: -18px; top: 12px; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.article-content blockquote { border-left: 4px solid var(--accent); background: rgba(240, 165, 0, .08); padding: 18px 22px; border-radius: 0 14px 14px 0; margin: 28px 0; font-style: italic; color: var(--text-muted); }
.article-content img { border-radius: 14px; margin: 24px 0; box-shadow: var(--shadow); }
.article-content pre { background: var(--primary); color: #fff; border-radius: 14px; padding: 22px; overflow-x: auto; margin: 24px 0; font-size: 14px; line-height: 1.7; }
.article-content code { font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', monospace; }
.article-content table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14px; }
.article-content th { background: var(--primary); color: #fff; padding: 12px 16px; text-align: left; }
.article-content td { padding: 12px 16px; border-bottom: 1px solid var(--border); }
.article-content tr:hover td { background: rgba(240, 165, 0, .04); }
.article-content a { color: var(--accent-dark); border-bottom: 1px solid rgba(240, 165, 0, .4); }
.article-content a:hover { color: var(--accent); border-bottom-color: var(--accent); }

/* Tags */
.article-tags { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 36px; padding-top: 22px; border-top: 1px solid var(--border); }
.article-tags .label { font-size: 13px; font-weight: 700; color: var(--text-muted); }
.tag-item { display: inline-block; padding: 6px 16px; background: var(--bg); border: 1px solid var(--border); border-radius: 100px; font-size: 13px; color: var(--text-muted); transition: var(--transition); }
.tag-item:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-2px); box-shadow: 0 6px 16px rgba(11, 27, 58, .2); }

/* Sidebar */
.sidebar-card { background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow); padding: 30px; margin-bottom: 28px; border: 1px solid rgba(226, 232, 240, .5); }
.sidebar-icon { width: 44px; height: 44px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 18px; margin-bottom: 14px; }
.sidebar-icon.gold { background: rgba(240, 165, 0, .12); color: var(--accent-dark); }
.sidebar-icon.blue { background: rgba(11, 27, 58, .08); color: var(--primary); }
.sidebar-title { font-size: 17px; font-weight: 800; color: var(--primary); margin-bottom: 16px; display: flex; align-items: center; gap: 10px; }
.sidebar-title::after { content: ''; flex: 1; height: 1px; background: linear-gradient(90deg, var(--border), transparent); }
.sidebar-text { font-size: 14px; color: var(--text-muted); margin-bottom: 16px; line-height: 1.8; }
.side-list li { border-bottom: 1px dashed var(--border); padding: 11px 0; }
.side-list li:last-child { border-bottom: none; }
.side-list a { display: flex; align-items: flex-start; gap: 12px; font-size: 14px; }
.side-list a .side-num { flex-shrink: 0; width: 26px; height: 26px; border-radius: 8px; background: rgba(240, 165, 0, .12); color: var(--accent-dark); font-size: 12px; font-weight: 700; display: flex; align-items: center; justify-content: center; }
.side-list a:hover { color: var(--accent-dark); }
.side-list a:hover .side-num { background: var(--accent); color: #fff; }
.side-link-group { display: flex; flex-direction: column; gap: 8px; }
.side-link { display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-radius: 12px; background: var(--bg); font-size: 14px; font-weight: 500; color: var(--text); transition: var(--transition); }
.side-link i { width: 20px; text-align: center; color: var(--accent-dark); }
.side-link:hover { background: var(--primary); color: #fff; transform: translateX(4px); }
.side-link:hover i { color: var(--accent-light); }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }

/* Related Section */
.related-section { background: var(--bg-alt); padding: 70px 0; }
.related-grid { margin: 0 -12px; }
.related-card { background: var(--surface); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); display: block; height: 100%; border: 1px solid rgba(226, 232, 240, .5); transition: var(--transition); }
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.related-thumb { height: 190px; overflow: hidden; position: relative; }
.related-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.related-thumb::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(11, 27, 58, .6)); }
.related-card:hover .related-thumb img { transform: scale(1.08); }
.related-body { padding: 24px; }
.related-body .badge { position: static; margin-bottom: 10px; }
.related-title { font-size: 17px; font-weight: 700; color: var(--primary); line-height: 1.5; margin-bottom: 8px; }
.related-excerpt { font-size: 13px; color: var(--text-muted); line-height: 1.7; margin-bottom: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-meta { font-size: 12px; color: #a0aec0; display: flex; align-items: center; gap: 6px; }
.related-meta i { color: var(--accent); }

/* CTA */
.cta-section { padding: 100px 0; background: linear-gradient(135deg, var(--primary-dark), var(--primary)), url('/assets/images/backpic/back-2.png') center/cover no-repeat; position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; top: -60px; left: 30%; width: 380px; height: 380px; border-radius: 50%; background: radial-gradient(circle, rgba(240, 165, 0, .15), transparent 65%); }
.cta-inner { text-align: center; position: relative; z-index: 2; }
.cta-inner h2 { font-size: 36px; font-weight: 900; color: #fff; margin-bottom: 12px; letter-spacing: -1px; }
.cta-inner p { font-size: 16px; color: rgba(255, 255, 255, .75); max-width: 600px; margin: 0 auto 32px; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* Not Found */
.not-found { text-align: center; padding: 70px 30px; }
.not-found i { font-size: 60px; color: var(--border); margin-bottom: 20px; display: block; }
.not-found h2 { font-size: 32px; font-weight: 800; color: var(--primary); margin-bottom: 10px; }
.not-found p { color: var(--text-muted); margin-bottom: 24px; }

/* Footer */
.site-footer { background: var(--primary-dark); color: rgba(255, 255, 255, .8); padding: 70px 0 30px; }
.footer-brand { display: flex; align-items: center; gap: 12px; font-size: 22px; font-weight: 800; color: #fff; margin-bottom: 18px; }
.footer-desc { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, .6); max-width: 320px; }
.footer-heading { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 18px; position: relative; padding-bottom: 8px; }
.footer-heading::after { content: ''; position: absolute; left: 0; bottom: 0; width: 32px; height: 3px; border-radius: 3px; background: var(--accent); }
.footer-links li { margin-bottom: 10px; font-size: 14px; line-height: 1.7; }
.footer-links a { color: rgba(255, 255, 255, .65); }
.footer-links a:hover { color: var(--accent-light); }
.footer-links i { color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .1); padding-top: 26px; margin-top: 48px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; font-size: 13px; color: rgba(255, 255, 255, .45); }
.footer-bottom i { color: var(--success); }

/* Responsive */
@media (max-width: 1024px) {
  .header-inner { gap: 16px; }
  .search-box { width: 150px; }
  .main-nav a { padding: 8px 12px; font-size: 13px; }
  .hero-title { font-size: 34px; }
}
@media (max-width: 768px) {
  .top-header { display: none; }
  .section { padding: 55px 0; }
  .section-head h2 { font-size: 26px; }
  .page-hero { padding: 60px 0 50px; }
  .hero-title { font-size: 28px; }
  .hero-desc { font-size: 15px; }
  .article-card { padding: 28px 20px; }
  .cta-section { padding: 70px 0; }
  .cta-inner h2 { font-size: 26px; }
  .sidebar { margin-top: 30px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .main-nav { display: none; }
  .header-cta .search-box { display: none; }
  .header-cta .btn { display: none; }
  .header-cta { margin-left: auto; }
  .logo { margin-right: auto; }
  .header-inner { height: 64px; }
  .bottom-tab-bar { display: flex; }
  body { padding-bottom: 64px; }
}
@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .section-head p { font-size: 14px; }
  .hero-breadcrumb { font-size: 12px; }
  .hero-meta { gap: 12px; font-size: 12px; }
  .article-content { font-size: 15px; }
  .article-content h2 { font-size: 21px; }
  .btn-lg { padding: 14px 28px; font-size: 15px; }
  .cta-buttons { flex-direction: column; align-items: center; }
  .footer-bottom { font-size: 12px; }
  .site-footer { padding: 50px 0 20px; }
}
@keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }

/* roulang page: category2 */
:root {
  --primary: #0b2b4f;
  --primary-light: #174f7a;
  --primary-lighter: #e6f0f8;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --accent-soft: #fef3e2;
  --text: #16233a;
  --text-weak: #5d7083;
  --bg: #f4f7fb;
  --bg-white: #ffffff;
  --border: #e3eaf1;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 4px 14px rgba(11, 43, 79, .06);
  --shadow-md: 0 10px 30px rgba(11, 43, 79, .09);
  --shadow-lg: 0 20px 50px rgba(11, 43, 79, .14);
  --space-section: 96px;
  --header-h: 72px;
}

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

html { scroll-behavior: smooth; }

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

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

a { text-decoration: none; color: var(--primary); transition: color .2s; }

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

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

h1, h2, h3, h4, h5 { font-weight: 700; line-height: 1.3; color: var(--primary); }

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

.section-pad { padding: var(--space-section) 0; }

.section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }

.section-head .subtitle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 12px;
}

.section-head .subtitle::before,
.section-head .subtitle::after {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--accent);
  display: inline-block;
  border-radius: 2px;
}

.section-head h2 { font-size: 36px; margin-bottom: 14px; }

.section-head p { color: var(--text-weak); font-size: 16px; }

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1;
  padding: 14px 28px;
  border-radius: 50px;
  transition: all .3s ease;
  cursor: pointer;
  border: 2px solid transparent;
}

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

.btn-primary:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(245, 158, 11, .35);
}

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

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

.btn-lg { padding: 16px 36px; font-size: 16px; }

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

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  border-radius: 30px;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 600;
}

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

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  height: var(--header-h);
  transition: box-shadow .3s;
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: .5px;
  white-space: nowrap;
}

.logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 800;
  box-shadow: var(--shadow-sm);
}

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

.main-nav a {
  padding: 8px 18px;
  font-weight: 600;
  font-size: 15px;
  color: var(--text-weak);
  border-radius: 30px;
  transition: all .25s;
}

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

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

.header-cta {
  display: flex;
  align-items: center;
  gap: 16px;
}

.search-box {
  display: flex;
  align-items: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 40px;
  padding: 8px 16px;
  gap: 10px;
  transition: all .25s;
}

.search-box i { color: var(--text-weak); font-size: 14px; }

.search-box input {
  border: 0;
  background: transparent;
  outline: none;
  font-size: 14px;
  color: var(--text);
  width: 150px;
}

.search-box:focus-within {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(11, 43, 79, .08);
}

/* ===== Page Banner ===== */
.page-banner {
  margin-top: var(--header-h);
  position: relative;
  padding: 110px 0 80px;
  background: linear-gradient(135deg, rgba(11, 43, 79, .92), rgba(23, 79, 122, .82)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff;
  text-align: center;
}

.page-banner::before {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 60px;
  background: var(--bg);
  clip-path: ellipse(80% 60% at 50% 100%);
}

.page-banner h1 {
  font-size: 42px;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.page-banner p {
  font-size: 18px;
  color: rgba(255, 255, 255, .92);
  max-width: 620px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
  font-size: 14px;
  color: rgba(255, 255, 255, .75);
}

.breadcrumb a { color: rgba(255, 255, 255, .85); }

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

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

/* ===== Quick help ===== */
.quick-help {
  padding: 60px 0;
}

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

.quick-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  text-align: center;
  transition: all .3s;
  box-shadow: var(--shadow-sm);
}

.quick-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.quick-item .icon-box {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--primary-lighter);
  color: var(--primary);
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  transition: background .3s, color .3s;
}

.quick-item:hover .icon-box {
  background: var(--primary);
  color: #fff;
}

.quick-item h3 { font-size: 17px; margin-bottom: 8px; }

.quick-item p { font-size: 14px; color: var(--text-weak); margin-bottom: 0; }

/* ===== FAQ category cards ===== */
.faq-cats { background: var(--bg-white); }

.cat-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all .35s;
  height: 100%;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}

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

.cat-card .cat-img {
  height: 170px;
  background-size: cover;
  background-position: center;
  position: relative;
}

.cat-card .cat-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(11, 43, 79, .35));
}

.cat-card .cat-body {
  padding: 28px 26px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.cat-card .cat-body h3 {
  font-size: 20px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.cat-card .cat-body p {
  font-size: 14px;
  color: var(--text-weak);
  flex: 1;
}

.cat-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }

.cat-tags a {
  font-size: 12px;
  background: var(--primary-lighter);
  color: var(--primary);
  padding: 4px 12px;
  border-radius: 20px;
  font-weight: 600;
  transition: background .2s, color .2s;
}

.cat-tags a:hover { background: var(--primary); color: #fff; }

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

.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: 16px;
  overflow: hidden;
  transition: box-shadow .3s;
  box-shadow: var(--shadow-sm);
}

.faq-item.active {
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 28px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  transition: color .2s;
  user-select: none;
}

.faq-question:hover { color: var(--primary); }

.faq-question i {
  font-size: 18px;
  color: var(--accent);
  transition: transform .35s;
  flex-shrink: 0;
}

.faq-item.active .faq-question i {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .5s ease, padding .3s;
  padding: 0 28px;
  font-size: 15px;
  color: var(--text-weak);
  line-height: 1.8;
  border-top: 0 solid var(--border);
}

.faq-item.active .faq-answer {
  max-height: 400px;
  padding: 0 28px 22px;
  border-top-width: 1px;
}

.faq-answer ul { padding: 8px 0 0 18px; list-style: disc; }

.faq-answer ul li { margin-bottom: 4px; }

/* ===== Stats ===== */
.stats-section {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  padding: 70px 0;
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .06);
}

.stats-section::after {
  content: "";
  position: absolute;
  bottom: -60px;
  left: -60px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .05);
}

.stats-section .container { position: relative; z-index: 1; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}

.stat-item h3 {
  font-size: 42px;
  color: #fff;
  margin-bottom: 8px;
  letter-spacing: -1px;
}

.stat-item p { font-size: 15px; color: rgba(255, 255, 255, .82); margin-bottom: 0; }

.stat-item i {
  font-size: 28px;
  color: var(--accent);
  margin-bottom: 10px;
}

/* ===== Help steps ===== */
.steps-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  margin-top: 20px;
}

.step-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  position: relative;
  transition: all .3s;
  box-shadow: var(--shadow-sm);
}

.step-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.step-num {
  position: absolute;
  top: 20px;
  right: 24px;
  font-size: 48px;
  font-weight: 800;
  color: var(--primary-lighter);
  line-height: 1;
}

.step-icon {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 20px;
}

.step-item h3 { font-size: 18px; margin-bottom: 10px; position: relative; z-index: 1; }

.step-item p { font-size: 14px; color: var(--text-weak); margin-bottom: 0; position: relative; z-index: 1; }

/* ===== CTA ===== */
.cta-section {
  background: var(--bg-white);
  border-top: 1px solid var(--border);
}

.cta-box {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 28px;
  padding: 60px 50px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.cta-box::before {
  content: "";
  position: absolute;
  top: -50px;
  right: -50px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .08);
}

.cta-box h2 { color: #fff; font-size: 28px; margin-bottom: 10px; }

.cta-box p { color: rgba(255, 255, 255, .85); margin-bottom: 0; }

/* ===== Footer ===== */
.site-footer {
  background: var(--primary);
  color: rgba(255, 255, 255, .8);
  padding: 70px 0 0;
}

.site-footer .grid-x {
  margin-bottom: 40px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}

.footer-brand .logo-icon {
  width: 40px;
  height: 40px;
  background: var(--accent);
  color: #fff;
}

.footer-desc { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, .7); max-width: 320px; }

.footer-heading {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-heading::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 32px;
  height: 3px;
  border-radius: 3px;
  background: var(--accent);
}

.footer-links li { margin-bottom: 12px; font-size: 14px; }

.footer-links a { color: rgba(255, 255, 255, .75); transition: all .2s; }

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

.footer-links i { color: var(--accent); }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .15);
  padding: 22px 0;
  font-size: 14px;
  color: rgba(255, 255, 255, .55);
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

/* ===== Mobile bottom tab bar ===== */
.mobile-tabbar {
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100%;
  background: rgba(255, 255, 255, .95);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--border);
  z-index: 200;
  display: none;
  justify-content: space-around;
  align-items: center;
  padding: 8px 0 calc(8px + env(safe-area-inset-bottom));
}

.mobile-tabbar a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  font-size: 11px;
  color: var(--text-weak);
  font-weight: 600;
  transition: color .2s;
  min-width: 64px;
}

.mobile-tabbar a i { font-size: 18px; }

.mobile-tabbar a.active { color: var(--accent); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .quick-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-list { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .search-box { display: none; }
  .cta-box { flex-direction: column; text-align: center; padding: 48px 30px; }
}

@media (max-width: 768px) {
  .header-cta .btn { display: none; }
  .main-nav { gap: 4px; }
  .main-nav a { font-size: 14px; padding: 6px 12px; }
  .page-banner { padding: 80px 0 60px; }
  .page-banner h1 { font-size: 30px; }
  .page-banner p { font-size: 16px; }
  .section-head h2 { font-size: 26px; }
  .section-head p { font-size: 15px; }
  .stats-grid { gap: 16px; }
  .stat-item h3 { font-size: 30px; }
  .footer-bottom { flex-direction: column; align-items: center; text-align: center; }
  .mobile-tabbar { display: flex; }
  body { padding-bottom: 64px; }
  .header-inner { gap: 10px; }
  .logo span:last-child { display: none; }
  .logo { font-size: 18px; }
}

@media (max-width: 520px) {
  :root { --space-section: 64px; }
  .quick-grid { grid-template-columns: 1fr; }
  .steps-list { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .main-nav a { font-size: 13px; padding: 5px 9px; }
  .main-nav a:last-child { display: none; }
  .menu-simple { display: block; }
  .page-banner h1 { font-size: 24px; }
  .faq-question { font-size: 15px; padding: 18px 20px; gap: 10px; }
  .faq-answer { padding: 0 20px; }
  .faq-item.active .faq-answer { padding: 0 20px 18px; }
  .cat-card .cat-body { padding: 22px 18px; }
  .section-pad { padding: var(--space-section) 0; }
  .stat-item h3 { font-size: 24px; }
}