/* roulang page: index */
:root{
  --primary:#0C5A4D;
  --primary-dark:#0A322B;
  --accent:#D9A441;
  --accent-hover:#E0B354;
  --bg:#F7F4EE;
  --bg-alt:#E6EFEB;
  --text:#1A2E28;
  --text-weak:#5A6D66;
  --white:#FFFFFF;
  --border:#D8D2C5;
  --radius-card:20px;
  --radius-btn:12px;
  --radius-badge:999px;
  --shadow:0 6px 24px rgba(12,90,77,0.08);
  --shadow-hover:0 12px 32px rgba(12,90,77,0.14);
  --font:"PingFang SC","HarmonyOS Sans SC","Source Han Sans CN","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  font-size:15px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input{font-family:inherit;outline:none}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 48px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-family:var(--font);
  font-size:15px;
  font-weight:600;
  border-radius:var(--radius-btn);
  padding:12px 28px;
  transition:all .25s ease;
  gap:8px;
  border:2px solid transparent;
}
.btn-primary{
  background:var(--accent);
  color:var(--primary-dark);
  font-weight:700;
}
.btn-primary:hover{
  background:var(--accent-hover);
  transform:scale(1.02);
  box-shadow:0 8px 24px rgba(217,164,65,0.25);
}
.btn-outline{
  background:transparent;
  color:var(--primary);
  border-color:var(--primary);
}
.btn-outline:hover{
  background:var(--primary);
  color:#fff;
}
.btn-accent{
  background:var(--accent);
  color:var(--primary-dark);
  font-weight:700;
}
.btn-accent:hover{
  background:var(--accent-hover);
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(217,164,65,0.28);
}
/* ===== Header / Nav ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:var(--primary);
  box-shadow:0 4px 20px rgba(10,50,43,0.2);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:64px;
  gap:16px;
}
.nav-left{
  display:flex;
  align-items:center;
  gap:24px;
  flex:1;
  min-width:0;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:17px;
  font-weight:700;
  letter-spacing:.5px;
  white-space:nowrap;
}
.brand-mark{
  width:28px;
  height:28px;
  flex-shrink:0;
  background:var(--accent);
  border-radius:8px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
  font-weight:800;
  color:var(--primary-dark);
}
.nav-links{
  display:flex;
  align-items:center;
  gap:20px;
  margin-left:8px;
  flex-wrap:wrap;
}
.nav-link{
  color:rgba(255,255,255,.8);
  font-size:14px;
  font-weight:400;
  padding:6px 2px;
  border-bottom:2px solid transparent;
  transition:color .2s,border-color .2s;
  white-space:nowrap;
}
.nav-link:hover{
  color:#fff;
  border-bottom-color:var(--accent);
}
.nav-link.active{
  color:#fff;
  font-weight:600;
  border-bottom-color:var(--accent);
}
.nav-right{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.nav-search{
  position:relative;
}
.nav-search input{
  background:rgba(255,255,255,.12);
  border:2px solid transparent;
  border-radius:8px;
  padding:8px 14px 8px 34px;
  color:#fff;
  font-size:13px;
  width:180px;
  transition:all .25s ease;
}
.nav-search input::placeholder{color:rgba(255,255,255,.6)}
.nav-search input:focus{
  background:#fff;
  color:var(--primary-dark);
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(217,164,65,.25);
}
.nav-search .search-icon{
  position:absolute;
  left:12px;
  top:50%;
  transform:translateY(-50%);
  color:rgba(255,255,255,.6);
  font-size:13px;
  pointer-events:none;
  transition:color .25s;
}
.nav-search input:focus ~ .search-icon{
  color:var(--primary);
}
.nav-cta{
  padding:9px 22px;
  font-size:14px;
}
.nav-toggle{
  display:none;
  color:#fff;
  font-size:22px;
  width:40px;
  height:40px;
  border-radius:8px;
  align-items:center;
  justify-content:center;
  transition:background .2s;
}
.nav-toggle:hover{background:rgba(255,255,255,.1)}
/* ===== Hero ===== */
.hero{
  display:grid;
  grid-template-columns:45% 55%;
  min-height:540px;
  background:var(--bg);
}
.hero-text{
  padding:80px 0 80px 48px;
  max-width:960px;
  margin:0 auto;
  width:100%;
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.hero h1{
  font-size:52px;
  font-weight:700;
  line-height:1.2;
  color:var(--primary-dark);
  letter-spacing:1px;
}
.hero h1 .hth-brand{
  color:var(--primary-dark);
  white-space:nowrap;
}
.hero h1 .hth-deep{
  color:var(--primary);
}
.hero-divider{
  width:40px;
  height:2px;
  background:var(--accent);
  margin:24px 0 20px;
}
.hero-sub{
  font-size:16px;
  color:var(--text-weak);
  max-width:420px;
  line-height:1.8;
  margin-bottom:32px;
}
.hero-actions{
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
}
.hero-visual{
  position:relative;
  background:linear-gradient(135deg,#0A322B,#0C5A4D);
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
}
.hero-visual::before{
  content:'';
  position:absolute;
  width:320px;
  height:320px;
  border:1px solid rgba(217,164,65,.2);
  border-radius:50%;
  top:50%;
  left:50%;
  transform:translate(-50%,-50%);
}
.hero-ring{
  width:260px;
  height:260px;
  border:2px dashed var(--accent);
  border-radius:50%;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:center;
  position:relative;
  z-index:2;
  box-shadow:0 0 0 12px rgba(217,164,65,.08),0 0 60px rgba(12,90,77,.6);
}
.hero-ring img{
  width:90%;
  height:90%;
  object-fit:cover;
  border-radius:50%;
}
.hero-data{
  background:var(--bg);
  border-top:1px solid var(--border);
  padding:24px 0;
}
.data-row{
  display:flex;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}
.data-item{
  display:flex;
  align-items:center;
  gap:12px;
  background:var(--white);
  border-radius:16px;
  padding:12px 20px;
  box-shadow:var(--shadow);
  flex:1;
  min-width:140px;
  justify-content:center;
}
.data-num{
  font-size:36px;
  font-weight:700;
  color:var(--primary);
  font-variant-numeric:tabular-nums;
  line-height:1;
}
.data-label{
  font-size:13px;
  color:var(--text-weak);
  font-weight:400;
}
/* ===== Section base ===== */
.section{
  padding:96px 0;
}
.section-alt{
  background:var(--bg-alt);
}
.section-head{
  text-align:center;
  margin-bottom:56px;
}
.section-head h2{
  font-size:30px;
  font-weight:700;
  color:var(--primary-dark);
  line-height:1.3;
}
.section-head p{
  font-size:15px;
  color:var(--text-weak);
  max-width:560px;
  margin:12px auto 0;
  line-height:1.7;
}
/* ===== Features ===== */
.features-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.feature-card{
  background:var(--white);
  border-radius:var(--radius-card);
  padding:28px 24px;
  box-shadow:var(--shadow);
  position:relative;
  display:flex;
  gap:18px;
  align-items:flex-start;
  transition:all .3s ease;
  border:1px solid transparent;
}
.feature-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(217,164,65,.5);
}
.feat-icon{
  width:40px;
  height:40px;
  flex-shrink:0;
  background:var(--bg-alt);
  border-radius:10px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  color:var(--primary);
}
.feature-card h3{
  font-size:16px;
  font-weight:600;
  color:var(--primary-dark);
  margin-bottom:6px;
}
.feature-card p{
  font-size:14px;
  color:var(--text-weak);
  line-height:1.7;
  margin-bottom:8px;
}
.feat-num{
  position:absolute;
  right:20px;
  top:20px;
  font-size:13px;
  font-weight:700;
  color:rgba(12,90,77,.25);
  font-variant-numeric:tabular-nums;
}
/* ===== Demo ===== */
.demo-layout{
  display:grid;
  grid-template-columns:1fr 1fr;
  align-items:center;
  gap:60px;
}
.demo-visual{
  width:100%;
  aspect-ratio:1/1;
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow);
  background:var(--bg-alt);
}
.demo-visual img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.demo-content h2{
  font-size:30px;
  font-weight:700;
  color:var(--primary-dark);
  margin-bottom:12px;
  line-height:1.3;
}
.demo-content > p{
  color:var(--text-weak);
  margin-bottom:32px;
  max-width:440px;
}
.demo-steps{
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.step-item{
  display:flex;
  align-items:flex-start;
  gap:16px;
}
.step-num{
  width:36px;
  height:36px;
  flex-shrink:0;
  border-radius:50%;
  border:2px solid var(--accent);
  color:var(--primary);
  font-weight:700;
  font-size:15px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--white);
  font-variant-numeric:tabular-nums;
}
.step-item h4{
  font-size:16px;
  font-weight:600;
  color:var(--primary-dark);
  line-height:1.4;
  margin-bottom:4px;
}
.step-item p{
  font-size:14px;
  color:var(--text-weak);
  line-height:1.65;
}
/* ===== Proof ===== */
.proof-section{
  background:var(--primary-dark);
  padding:72px 0;
}
.proof-bar{
  display:flex;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
}
.proof-item{
  background:rgba(255,255,255,.06);
  border-radius:16px;
  padding:20px 32px;
  text-align:center;
  flex:1;
  min-width:150px;
  border:1px solid rgba(217,164,65,.15);
}
.proof-num{
  display:block;
  font-size:40px;
  font-weight:700;
  color:var(--accent);
  line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.proof-label{
  display:block;
  font-size:14px;
  color:rgba(255,255,255,.8);
  margin-top:8px;
  font-weight:400;
}
/* ===== Pricing ===== */
.pricing-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:32px;
  max-width:800px;
  margin:0 auto;
}
.pricing-card{
  background:var(--white);
  border-radius:var(--radius-card);
  padding:36px 32px;
  box-shadow:var(--shadow);
  position:relative;
  transition:all .3s ease;
  border:1px solid transparent;
}
.pricing-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
}
.pricing-card.featured{
  border:2px solid var(--accent);
}
.pricing-badge{
  position:absolute;
  top:-14px;
  left:50%;
  transform:translateX(-50%);
  background:var(--accent);
  color:var(--primary-dark);
  font-size:13px;
  font-weight:700;
  padding:4px 16px;
  border-radius:var(--radius-badge);
  box-shadow:0 4px 12px rgba(217,164,65,.3);
}
.pricing-card h3{
  font-size:20px;
  font-weight:600;
  color:var(--primary-dark);
  margin-bottom:8px;
}
.pricing-card .pricing-desc{
  font-size:14px;
  color:var(--text-weak);
  margin-bottom:20px;
}
.price{
  font-size:44px;
  font-weight:700;
  color:var(--primary);
  font-variant-numeric:tabular-nums;
  margin-bottom:24px;
  line-height:1;
}
.price span{
  font-size:15px;
  font-weight:400;
  color:var(--text-weak);
}
.pricing-card ul{
  list-style:none;
  margin-bottom:28px;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.pricing-card ul li{
  font-size:14px;
  color:var(--text);
  padding-left:24px;
  position:relative;
}
.pricing-card ul li::before{
  content:'✓';
  position:absolute;
  left:0;
  color:var(--primary);
  font-weight:700;
}
.pricing-card .btn{
  width:100%;
}
/* ===== FAQ ===== */
.faq-wrap{
  max-width:860px;
  margin:0 auto;
  background:var(--white);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.faq-item{
  border-bottom:1px solid var(--border);
}
.faq-item:last-child{
  border-bottom:none;
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:22px 28px;
  font-size:16px;
  font-weight:600;
  color:var(--primary-dark);
  text-align:left;
  transition:background .2s;
}
.faq-q:hover{
  background:var(--bg-alt);
}
.faq-icon{
  width:24px;
  height:24px;
  flex-shrink:0;
  border-radius:50%;
  background:var(--accent);
  color:var(--primary-dark);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  font-weight:700;
  transition:transform .3s ease;
  line-height:1;
}
.faq-item.active .faq-icon{
  transform:rotate(45deg);
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease;
  padding:0 28px;
  background:var(--white);
}
.faq-item.active .faq-a{
  max-height:500px;
  padding:0 28px 24px;
  border-left:2px solid var(--accent);
}
.faq-a p{
  font-size:14px;
  color:var(--text-weak);
  line-height:1.7;
  padding-top:4px;
}
/* ===== News ===== */
.news-list{
  display:flex;
  flex-direction:column;
  gap:16px;
}
.news-card{
  display:flex;
  align-items:center;
  gap:20px;
  background:var(--white);
  border-radius:var(--radius-card);
  padding:20px 24px;
  box-shadow:var(--shadow);
  transition:all .3s ease;
  border:1px solid transparent;
}
.news-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-3px);
  border-color:rgba(217,164,65,.4);
}
.news-date{
  width:72px;
  height:72px;
  flex-shrink:0;
  background:var(--primary);
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:13px;
  font-weight:600;
  text-align:center;
  line-height:1.3;
  font-variant-numeric:tabular-nums;
}
.news-info{
  flex:1;
  min-width:0;
}
.news-info h3{
  font-size:16px;
  font-weight:600;
  color:var(--primary-dark);
  margin-bottom:4px;
  line-height:1.4;
}
.news-info h3 a{
  transition:color .2s;
}
.news-info h3 a:hover{
  color:var(--primary);
}
.news-info p{
  font-size:14px;
  color:var(--text-weak);
  line-height:1.6;
  overflow:hidden;
  text-overflow:ellipsis;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  margin-bottom:6px;
}
.news-cat{
  display:inline-block;
  background:var(--bg-alt);
  color:var(--primary);
  font-size:12px;
  padding:2px 10px;
  border-radius:var(--radius-badge);
  font-weight:500;
}
.news-link{
  color:var(--primary);
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  transition:gap .2s,color .2s;
  display:inline-flex;
  align-items:center;
  gap:4px;
}
.news-link:hover{
  color:var(--accent-hover);
  gap:8px;
}
.news-empty{
  border:2px dashed var(--border);
  border-radius:var(--radius-card);
  padding:60px 20px;
  text-align:center;
  color:var(--text-weak);
}
.empty-icon{
  display:block;
  font-size:28px;
  margin-bottom:8px;
  color:var(--primary);
  opacity:.4;
}
.news-empty p{
  font-size:14px;
}
/* ===== CTA ===== */
.cta-banner{
  background:var(--primary);
  padding:80px 0;
  position:relative;
  overflow:hidden;
  text-align:center;
}
.cta-banner::before,
.cta-banner::after{
  content:'';
  position:absolute;
  border-radius:50%;
  border:2px solid rgba(217,164,65,.2);
}
.cta-banner::before{
  width:200px;
  height:200px;
  top:-80px;
  left:-60px;
}
.cta-banner::after{
  width:260px;
  height:260px;
  bottom:-120px;
  right:-80px;
}
.cta-banner h2{
  color:#fff;
  font-size:30px;
  font-weight:700;
  margin-bottom:24px;
  position:relative;
  z-index:2;
}
.cta-banner .btn{
  position:relative;
  z-index:2;
}
/* ===== Footer ===== */
.site-footer{
  background:var(--primary-dark);
  color:rgba(255,255,255,.7);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1.2fr;
  gap:48px;
  padding-bottom:48px;
}
.footer-brand h3{
  color:#fff;
  font-size:18px;
  font-weight:700;
  margin-bottom:8px;
  letter-spacing:.5px;
}
.footer-brand .brand-line{
  width:32px;
  height:2px;
  background:var(--accent);
  margin:12px 0 16px;
}
.footer-brand p{
  font-size:14px;
  line-height:1.7;
  color:rgba(255,255,255,.65);
  max-width:260px;
}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin-bottom:16px;
}
.footer-col a{
  display:block;
  color:rgba(255,255,255,.7);
  font-size:14px;
  padding:4px 0;
  transition:color .2s,padding-left .2s;
}
.footer-col a:hover{
  color:var(--accent);
  padding-left:4px;
}
.footer-col p{
  font-size:12px;
  color:rgba(255,255,255,.5);
  line-height:1.9;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0;
  text-align:center;
}
.footer-bottom p{
  font-size:13px;
  color:rgba(255,255,255,.4);
}
/* ===== Float CTA ===== */
.float-cta{
  position:fixed;
  bottom:32px;
  right:32px;
  z-index:99;
  opacity:0;
  visibility:hidden;
  transform:translateY(20px);
  transition:all .3s ease;
}
.float-cta.visible{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.float-consult{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  width:64px;
  height:64px;
  border-radius:50%;
  background:var(--accent);
  color:var(--primary-dark);
  box-shadow:0 8px 24px rgba(217,164,65,.4);
  transition:all .3s ease;
}
.float-consult:hover{
  background:var(--accent-hover);
  transform:scale(1.05);
}
.float-icon{
  font-size:20px;
  font-weight:700;
  line-height:1;
}
.float-text{
  font-size:12px;
  font-weight:600;
  margin-top:2px;
}
.float-mobile-bar{
  display:none;
}
/* ===== Responsive ===== */
@media (max-width:1024px){
  .container{padding:0 32px}
  .hero h1{font-size:40px}
  .nav-search{display:none}
  .nav-links{gap:14px}
  .nav-link{font-size:13px}
  .demo-layout{gap:32px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .site-header .nav-wrap{height:56px}
  .nav-links{
    display:none;
    position:fixed;
    top:56px;
    left:0;
    right:0;
    background:var(--primary);
    flex-direction:column;
    align-items:flex-start;
    padding:20px 24px;
    gap:16px;
    box-shadow:0 12px 24px rgba(10,50,43,.2);
  }
  .nav-links.open{
    display:flex;
  }
  .nav-toggle{
    display:flex;
  }
  .nav-search{
    margin-bottom:0;
  }
  .nav-cta{
    display:none;
  }
  .hero{
    grid-template-columns:1fr;
  }
  .hero-text{
    padding:56px 24px 40px;
  }
  .hero h1{
    font-size:32px;
  }
  .hero-visual{
    min-height:320px;
  }
  .hero-ring{
    width:180px;
    height:180px;
  }
  .hero-data{
    padding:16px 0;
  }
  .data-row{
    gap:12px;
  }
  .data-item{
    flex:1 1 calc(50% - 12px);
    padding:10px 14px;
  }
  .data-num{
    font-size:28px;
  }
  .section{
    padding:64px 0;
  }
  .features-grid{
    grid-template-columns:1fr;
  }
  .demo-layout{
    grid-template-columns:1fr;
    gap:24px;
  }
  .demo-visual{
    aspect-ratio:4/3;
  }
  .pricing-grid{
    grid-template-columns:1fr;
    gap:24px;
  }
  .proof-bar{
    gap:12px;
  }
  .proof-item{
    flex:1 1 calc(50% - 12px);
    min-width:0;
    padding:16px;
  }
  .proof-num{
    font-size:32px;
  }
  .news-card{
    flex-wrap:wrap;
    padding:16px;
    gap:12px;
  }
  .news-date{
    width:56px;
    height:56px;
  }
  .news-link{
    margin-left:72px;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:32px;
  }
  .cta-banner h2{
    font-size:24px;
  }
  .cta-banner .btn{
    padding:10px 20px;
  }
  .float-cta{
    bottom:0;
    right:0;
    left:0;
    top:auto;
    transform:none;
    border-radius:0;
    background:transparent;
    width:100%;
    padding:0;
  }
  .float-cta.visible{
    transform:none;
  }
  .float-consult{
    display:none;
  }
  .float-mobile-bar{
    display:flex;
    position:fixed;
    bottom:0;
    left:0;
    right:0;
    height:52px;
    background:rgba(255,255,255,.95);
    backdrop-filter:blur(10px);
    border-top:1px solid var(--border);
    z-index:98;
  }
  .float-m-btn{
    flex:1;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:14px;
    font-weight:600;
    color:var(--primary);
    border-right:1px solid var(--border);
  }
  .float-m-btn:last-child{
    border-right:none;
    background:var(--accent);
    color:var(--primary-dark);
  }
  body{
    padding-bottom:0;
  }
}
@media (max-width:520px){
  .hero h1{
    font-size:28px;
  }
  .hero-visual{
    min-height:260px;
  }
  .hero-ring{
    width:140px;
    height:140px;
  }
  .hero-sub{
    font-size:14px;
  }
  .btn{
    padding:10px 18px;
    font-size:14px;
  }
  .section-head h2{
    font-size:24px;
  }
  .demo-content h2{
    font-size:24px;
  }
  .pricing-card{
    padding:24px 20px;
  }
  .price{
    font-size:36px;
  }
  .faq-q{
    padding:18px 16px;
    font-size:15px;
  }
  .faq-a{
    padding:0 16px;
  }
  .faq-item.active .faq-a{
    padding:0 16px 20px;
  }
}

/* roulang page: article */
:root {
    --primary: #0C5A4D;
    --primary-dark: #0A322B;
    --primary-deep: #0A322B;
    --accent: #D9A441;
    --accent-hover: #E0B354;
    --bg: #F7F4EE;
    --bg-light: #E6EFEB;
    --card-bg: #FFFFFF;
    --text: #1A2E2A;
    --text-deep: #0A322B;
    --text-weak: #6B7C77;
    --border: #D8D2C5;
    --shadow-card: 0 6px 24px rgba(12,90,77,0.08);
    --shadow-hover: 0 12px 32px rgba(12,90,77,0.14);
    --radius-lg: 20px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --radius-pill: 999px;
    --container: 1200px;
    --font-stack: "PingFang SC","HarmonyOS Sans SC","Source Han Sans CN","Microsoft YaHei",sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-stack);
    font-weight: 400;
    font-size: 15px;
    line-height: 1.75;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

ul, ol {
    padding-left: 20px;
}

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

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding-left: 20px;
    padding-right: 20px;
}

/* ---------- Header / Nav ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--primary);
    box-shadow: 0 2px 12px rgba(10,50,43,0.25);
}

.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 16px;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 24px;
    min-width: 0;
    flex-wrap: nowrap;
}

.brand {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #fff;
    font-weight: 700;
    font-size: 17px;
    letter-spacing: 0.5px;
    white-space: nowrap;
    text-decoration: none;
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--accent);
    color: var(--primary-dark);
    border-radius: 8px;
    font-size: 15px;
    font-weight: 800;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
}

.nav-link {
    color: rgba(255,255,255,0.8);
    font-size: 14px;
    font-weight: 400;
    padding: 8px 10px;
    border-radius: 8px;
    text-decoration: none;
    position: relative;
    transition: color 0.2s ease, background 0.2s ease;
    white-space: nowrap;
}

.nav-link:hover {
    color: #fff;
    background: rgba(255,255,255,0.08);
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 10px;
    right: 10px;
    bottom: 2px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
    transform: scaleX(0);
    transition: transform 0.25s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: scaleX(1);
}

.nav-link.active {
    color: #fff;
    font-weight: 600;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.nav-search {
    display: flex;
    align-items: center;
    background: rgba(255,255,255,0.1);
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    padding: 6px 12px;
    gap: 6px;
    transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.nav-search .search-icon {
    color: rgba(255,255,255,0.7);
    font-size: 16px;
}

.nav-search input {
    background: transparent;
    border: none;
    outline: none;
    color: #fff;
    font-size: 13px;
    width: 110px;
    transition: width 0.2s ease;
}

.nav-search input::placeholder {
    color: rgba(255,255,255,0.6);
}

.nav-search:focus-within {
    background: #fff;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(217,164,65,0.4);
}

.nav-search:focus-within .search-icon {
    color: var(--primary);
}

.nav-search:focus-within input {
    color: var(--primary-dark);
    width: 150px;
}

.nav-search:focus-within input::placeholder {
    color: var(--text-weak);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 14px;
    padding: 10px 22px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.25s ease;
    line-height: 1.4;
}

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

.btn-accent:hover {
    background: var(--accent-hover);
    transform: scale(1.02);
    color: var(--primary-dark);
}

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

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

.btn-ghost {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

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

.nav-cta {
    padding: 8px 18px;
    font-size: 14px;
}

.nav-toggle {
    display: none;
    background: rgba(255,255,255,0.12);
    border: none;
    border-radius: 8px;
    color: #fff;
    font-size: 22px;
    width: 40px;
    height: 40px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
}

/* ---------- Breadcrumb ---------- */
.breadcrumb-bar {
    background: var(--bg);
    border-bottom: 1px solid rgba(10,50,43,0.06);
    padding: 14px 0;
}

.breadcrumb-wrap {
    display: flex;
    align-items: center;
    font-size: 13px;
    color: var(--text-weak);
    gap: 8px;
    flex-wrap: wrap;
}

.breadcrumb-wrap a {
    color: var(--primary);
    text-decoration: none;
}

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

.breadcrumb-wrap .current {
    color: var(--primary-dark);
    font-weight: 600;
    max-width: 420px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.breadcrumb-sep {
    color: rgba(107,124,119,0.5);
}

/* ---------- Article Main ---------- */
.article-page {
    padding: 40px 0 80px;
    background: var(--bg);
}

.article-card {
    max-width: 960px;
    margin: 0 auto;
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: 48px 48px 40px;
    position: relative;
}

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

.article-cat {
    display: inline-block;
    font-size: 12px;
    color: var(--accent);
    border: 1px solid var(--accent);
    padding: 4px 14px;
    border-radius: var(--radius-pill);
    letter-spacing: 1px;
    font-weight: 600;
    margin-bottom: 16px;
    background: rgba(217,164,65,0.05);
}

.article-title {
    font-size: 42px;
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-deep);
    margin: 0 0 16px;
    letter-spacing: 0.5px;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: #8A9994;
    flex-wrap: wrap;
}

.meta-dot {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: #C4CEC9;
}

.article-body {
    max-width: 760px;
    font-size: 15px;
    line-height: 1.75;
    color: var(--text);
}

.article-body h1 {
    font-size: 30px;
    font-weight: 700;
    line-height: 1.3;
    margin: 32px 0 14px;
    color: var(--text-deep);
}

.article-body h2 {
    font-size: 24px;
    font-weight: 700;
    line-height: 1.3;
    margin: 28px 0 12px;
    color: var(--text-deep);
}

.article-body h3 {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.4;
    margin: 20px 0 10px;
    color: var(--text-deep);
}

.article-body p {
    margin: 0 0 24px;
}

.article-body blockquote {
    margin: 24px 0;
    background: var(--bg-light);
    border-left: 4px solid var(--accent);
    border-radius: 0 8px 8px 0;
    padding: 16px 20px;
    font-style: normal;
    color: var(--text-weak);
}

.article-body img {
    width: 100%;
    height: auto;
    border-radius: 16px;
    margin: 24px 0;
}

.article-body table {
    width: 100%;
    max-width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    display: block;
    overflow-x: auto;
    font-size: 14px;
}

.article-body table th,
.article-body table td {
    border: 1px solid var(--border);
    padding: 10px 12px;
    text-align: left;
    white-space: nowrap;
}

.article-body table th {
    background: var(--bg-light);
    font-weight: 600;
    color: var(--primary-dark);
}

.article-body ul,
.article-body ol {
    margin-bottom: 24px;
    padding-left: 24px;
}

.article-body a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 4px;
}

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

.article-body code {
    background: var(--bg-light);
    border-radius: 6px;
    padding: 2px 8px;
    font-family: "SF Mono", Consolas, monospace;
    font-size: 13px;
    color: var(--primary);
}

/* ---------- Article Tags ---------- */
.article-tags {
    max-width: 760px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid var(--bg-light);
}

.article-tags a {
    background: var(--bg-light);
    color: var(--primary);
    font-size: 13px;
    padding: 6px 16px;
    border-radius: var(--radius-pill);
    text-decoration: none;
    transition: all 0.25s ease;
}

.article-tags a:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-1px);
}

/* ---------- Empty State ---------- */
.empty-state {
    max-width: 760px;
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 64px 24px;
    text-align: center;
    background: rgba(230,239,235,0.4);
}

.empty-state .icon {
    font-size: 40px;
    color: var(--accent);
    margin-bottom: 12px;
}

.empty-state p {
    font-size: 16px;
    color: var(--text-weak);
    margin-bottom: 16px;
}

.empty-state .btn {
    padding: 8px 24px;
    font-size: 13px;
}

/* ---------- Related Section ---------- */
.related-section {
    max-width: 960px;
    margin: 48px auto 0;
}

.related-title {
    font-size: 30px;
    font-weight: 700;
    color: var(--text-deep);
    margin-bottom: 24px;
    position: relative;
    padding-left: 16px;
}

.related-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 6px;
    bottom: 6px;
    width: 4px;
    background: var(--accent);
    border-radius: 4px;
}

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

.related-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.related-card a {
    display: block;
    text-decoration: none;
    color: inherit;
}

.related-thumb {
    height: 160px;
    overflow: hidden;
    background: var(--bg-light);
}

.related-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.35s ease;
}

.related-card:hover .related-thumb img {
    transform: scale(1.04);
}

.related-content {
    padding: 20px 24px 22px;
}

.related-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-deep);
    margin-bottom: 8px;
}

.related-content p {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.6;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-date {
    font-size: 12px;
    color: #9AA8A3;
    font-variant-numeric: tabular-nums;
}

/* ---------- Article CTA ---------- */
.article-cta {
    max-width: 960px;
    margin: 48px auto 0;
    background: var(--primary);
    border-radius: var(--radius-lg);
    padding: 40px 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
    position: relative;
    overflow: hidden;
}

.article-cta::before,
.article-cta::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    border: 2px dashed rgba(255,255,255,0.12);
}

.article-cta::before {
    width: 120px;
    height: 120px;
    right: -30px;
    top: -30px;
}

.article-cta::after {
    width: 70px;
    height: 70px;
    left: 40px;
    bottom: -20px;
    border-color: rgba(217,164,65,0.3);
}

.article-cta .cta-text {
    position: relative;
    z-index: 1;
}

.article-cta h2 {
    font-size: 24px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 4px;
}

.article-cta p {
    font-size: 14px;
    color: rgba(255,255,255,0.7);
}

.article-cta .btn {
    flex-shrink: 0;
    z-index: 1;
}

/* ---------- Footer ---------- */
.site-footer {
    background: var(--primary-deep);
    color: rgba(255,255,255,0.8);
    padding-top: 56px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 48px;
}

.footer-brand h3 {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
}

.footer-brand .brand-line {
    width: 40px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
    margin-bottom: 14px;
}

.footer-brand p {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    line-height: 1.7;
    max-width: 280px;
}

.footer-col h4 {
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 14px;
}

.footer-col a {
    display: block;
    color: rgba(255,255,255,0.7);
    font-size: 14px;
    margin-bottom: 10px;
    text-decoration: none;
    transition: color 0.2s ease, padding-left 0.2s ease;
}

.footer-col a:hover {
    color: var(--accent);
    padding-left: 4px;
}

.footer-col p {
    font-size: 13px;
    color: rgba(255,255,255,0.5);
    line-height: 1.8;
    margin-bottom: 8px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 20px 0;
}

.footer-bottom .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(255,255,255,0.45);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--primary);
        flex-direction: column;
        align-items: stretch;
        padding: 16px 20px 24px;
        gap: 4px;
        box-shadow: 0 12px 30px rgba(10,50,43,0.3);
        border-radius: 0 0 16px 16px;
    }

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

    .nav-link {
        padding: 12px 16px;
        font-size: 15px;
        border-radius: 10px;
    }

    .nav-link::after {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-search {
        flex: 1;
        max-width: 200px;
    }

    .nav-search input {
        width: 90px;
    }

    .nav-search:focus-within input {
        width: 130px;
    }

    .article-title {
        font-size: 32px;
    }

    .article-card {
        padding: 36px 28px 32px;
    }

    .related-title {
        font-size: 26px;
    }

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

@media (max-width: 768px) {
    .nav-wrap {
        height: 56px;
    }

    .nav-links {
        top: 56px;
    }

    .brand {
        font-size: 15px;
    }

    .brand-mark {
        width: 24px;
        height: 24px;
        font-size: 13px;
        border-radius: 6px;
    }

    .nav-cta {
        display: none;
    }

    .nav-search {
        display: none;
    }

    .breadcrumb-bar {
        padding: 10px 0;
    }

    .article-page {
        padding: 24px 0 56px;
    }

    .article-card {
        padding: 28px 20px 28px;
        border-radius: 16px;
    }

    .article-title {
        font-size: 26px;
        line-height: 1.25;
    }

    .article-meta {
        font-size: 12px;
        gap: 6px;
    }

    .article-body {
        font-size: 14px;
    }

    .article-body h1 {
        font-size: 24px;
    }

    .article-body h2 {
        font-size: 20px;
    }

    .article-body h3 {
        font-size: 16px;
    }

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

    .related-thumb {
        height: 140px;
    }

    .article-cta {
        padding: 28px 20px;
        text-align: center;
    }

    .article-cta h2 {
        font-size: 20px;
    }

    .article-cta p {
        font-size: 13px;
    }

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

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

    .footer-bottom .container {
        flex-direction: column;
        text-align: center;
    }
}

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

    .brand {
        font-size: 14px;
    }

    .brand-mark {
        width: 22px;
        height: 22px;
        font-size: 12px;
    }

    .article-card {
        padding: 24px 16px 24px;
    }

    .article-title {
        font-size: 22px;
    }

    .article-cat {
        font-size: 11px;
        padding: 3px 10px;
    }

    .article-meta {
        font-size: 12px;
        gap: 4px;
    }

    .article-tags {
        gap: 8px;
    }

    .article-tags a {
        font-size: 12px;
        padding: 4px 12px;
    }

    .related-content {
        padding: 16px 18px 18px;
    }

    .related-content h3 {
        font-size: 16px;
    }

    .related-date {
        font-size: 12px;
    }
}

/* roulang page: category1 */
/* ========== 设计变量 ========== */
:root {
  --primary: #0C5A4D;
  --primary-dark: #0A322B;
  --secondary: #D9A441;
  --secondary-light: #E0B354;
  --bg: #F7F4EE;
  --bg-muted: #E6EFEB;
  --white: #FFFFFF;
  --text: #173A33;
  --text-light: #5A6E68;
  --border: #D8D2C5;
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-pill: 999px;
  --shadow: 0 6px 24px rgba(12, 90, 77, 0.08);
  --shadow-hover: 0 12px 32px rgba(12, 90, 77, 0.14);
  --spacing-section: 96px;
  --spacing-mobile: 64px;
  --container: 1200px;
  --transition: all 0.3s ease;
}
/* ========== Reset / Base ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans CN", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.75;
  font-weight: 400;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5 { font-weight: 700; line-height: 1.3; color: var(--primary-dark); }
h1 { font-size: 44px; line-height: 1.2; }
h2 { font-size: 30px; line-height: 1.3; }
h3 { font-size: 20px; font-weight: 600; line-height: 1.4; }
p { color: var(--text); }

/* ========== 统一容器 ========== */
.container { max-width: var(--container); margin: 0 auto; padding: 0 48px; }
@media (max-width: 1024px) { .container { padding: 0 32px; } }
@media (max-width: 768px) { .container { padding: 0 20px; } }

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  transition: var(--transition);
  text-align: center;
}
.btn-accent {
  background: var(--secondary);
  color: var(--primary-dark);
  font-weight: 700;
}
.btn-accent:hover {
  background: var(--secondary-light);
  transform: scale(1.02);
  box-shadow: 0 8px 20px rgba(217, 164, 65, 0.25);
}
.btn-ghost {
  border: 2px solid var(--primary);
  color: var(--primary);
  background: transparent;
}
.btn-ghost:hover {
  background: rgba(12, 90, 77, 0.06);
  border-color: var(--primary-dark);
}
.btn-light {
  background: var(--white);
  color: var(--primary-dark);
  font-weight: 700;
}
.btn-light:hover {
  background: var(--bg-muted);
  transform: scale(1.02);
}
.btn-ghost-light {
  border: 2px solid rgba(255, 255, 255, 0.6);
  color: #fff;
  background: transparent;
}
.btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
}
@media (max-width: 520px) {
  .btn { padding: 10px 20px; font-size: 14px; width: 100%; }
}

/* ========== Header / Nav ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--primary);
  height: 64px;
  box-shadow: 0 2px 12px rgba(10, 50, 43, 0.2);
}
.nav-wrap {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-left { display: flex; align-items: center; gap: 32px; flex: 1; }
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.5px;
  white-space: nowrap;
  transition: opacity 0.2s;
}
.brand:hover { opacity: 0.88; }
.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--secondary);
  color: var(--primary-dark);
  font-size: 14px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
}
.nav-link {
  color: rgba(255, 255, 255, 0.8);
  font-size: 14px;
  font-weight: 500;
  padding: 6px 2px;
  position: relative;
  transition: color 0.2s;
  white-space: nowrap;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--secondary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s;
}
.nav-link:hover { color: #fff; }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active { color: #fff; }
.nav-link.active::after { transform: scaleX(1); }
.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}
.nav-search {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 6px 12px;
  border: 2px solid transparent;
  transition: var(--transition);
}
.nav-search:focus-within {
  background: #fff;
  border-color: var(--secondary);
  box-shadow: 0 0 0 3px rgba(217, 164, 65, 0.25);
}
.search-icon { color: rgba(255, 255, 255, 0.8); font-size: 16px; line-height: 1; }
.nav-search:focus-within .search-icon { color: var(--primary); }
.nav-search input {
  background: transparent;
  border: none;
  outline: none;
  color: #fff;
  font-size: 13px;
  width: 100px;
  transition: width 0.3s;
}
.nav-search:focus-within input { color: var(--primary-dark); width: 140px; }
.nav-search input::placeholder { color: rgba(255, 255, 255, 0.6); }
.nav-search:focus-within input::placeholder { color: #aaa; }
.nav-cta { padding: 8px 18px; font-size: 14px; }
.nav-toggle { display: none; color: #fff; font-size: 22px; line-height: 1; padding: 4px; }
@media (max-width: 1024px) {
  .nav-search { display: none; }
  .nav-links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--primary-dark);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 32px;
    gap: 12px;
    transform: translateY(-160%);
    transition: transform 0.3s ease;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
    z-index: 99;
  }
  .nav-links.open { transform: translateY(0); }
  .nav-toggle { display: block; }
  .nav-link { font-size: 16px; padding: 8px 0; }
  .nav-link::after { height: 2px; }
  .nav-cta { display: none; }
}
@media (max-width: 768px) {
  .site-header, .nav-wrap { height: 56px; }
  .nav-wrap { padding: 0 20px; }
  .nav-links { top: 56px; padding: 20px; }
  .brand { font-size: 15px; }
}

/* ========== 分类页 Banner ========== */
.category-banner {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  padding: 64px 0 72px;
  position: relative;
  overflow: hidden;
}
.category-banner::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.25;
  clip-path: polygon(20% 0, 100% 0, 100% 100%, 0% 100%);
  z-index: 0;
}
.category-banner .container { position: relative; z-index: 1; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 28px;
}
.breadcrumb a { color: rgba(255, 255, 255, 0.8); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--secondary); }
.breadcrumb .sep { opacity: 0.5; }
.breadcrumb .current { color: var(--secondary); font-weight: 500; }
.banner-content { max-width: 680px; }
.banner-content h1 {
  color: #fff;
  font-size: 42px;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.banner-content h1 .highlight { color: var(--secondary); }
.banner-content p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 28px;
  max-width: 560px;
}
.banner-actions { display: flex; gap: 14px; flex-wrap: wrap; }
@media (max-width: 768px) {
  .category-banner { padding: 40px 0 48px; }
  .category-banner::before { width: 100%; opacity: 0.15; clip-path: none; }
  .banner-content h1 { font-size: 32px; }
  .banner-content p { font-size: 14px; }
}

/* ========== Section 通用 ========== */
.section { padding: var(--spacing-section) 0; }
.section-alt { background: var(--bg-muted); }
.section-head { margin-bottom: 48px; }
.section-head .section-tag {
  display: inline-block;
  background: rgba(217, 164, 65, 0.15);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}
.section-head h2 { margin-bottom: 8px; }
.section-head p { font-size: 15px; color: var(--text-light); max-width: 720px; }
@media (max-width: 768px) {
  .section { padding: var(--spacing-mobile) 0; }
  .section-head h2 { font-size: 24px; }
  .section-head p { font-size: 14px; }
}

/* ========== 图文交错长文 ========== */
.content-row {
  display: flex;
  align-items: center;
  gap: 48px;
  margin-bottom: 48px;
}
.content-row:last-child { margin-bottom: 0; }
.content-media {
  flex: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  background: var(--bg-muted);
}
.content-media img {
  width: 100%;
  height: auto;
  min-height: 240px;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.content-media:hover img { transform: scale(1.02); }
.content-text { flex: 1; }
.content-text h3 { font-size: 22px; margin-bottom: 12px; color: var(--primary-dark); }
.content-text p { font-size: 15px; line-height: 1.8; color: var(--text); margin-bottom: 12px; }
.content-text p:last-child { margin-bottom: 0; }
.content-text .text-strong { font-weight: 600; color: var(--primary); }
.content-row.reverse { flex-direction: row-reverse; }
@media (max-width: 768px) {
  .content-row, .content-row.reverse { flex-direction: column; gap: 24px; }
  .content-media img { min-height: 180px; }
  .content-text h3 { font-size: 20px; }
}

/* ========== 目录锚点条 ========== */
.toc-bar {
  background: var(--white);
  padding: 20px 0;
  border-top: 1px solid rgba(216, 210, 197, 0.4);
  border-bottom: 1px solid rgba(216, 210, 197, 0.4);
  position: sticky;
  top: 64px;
  z-index: 50;
}
.toc-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}
.toc-link {
  display: inline-block;
  background: var(--bg-muted);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  transition: var(--transition);
  border: 1px solid transparent;
}
.toc-link:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(12, 90, 77, 0.2);
}
.toc-link.active {
  background: var(--primary);
  color: #fff;
}
@media (max-width: 768px) {
  .toc-bar { top: 56px; padding: 12px 0; overflow-x: auto; }
  .toc-inner { flex-wrap: nowrap; justify-content: flex-start; padding: 0 20px; }
  .toc-link { white-space: nowrap; }
}

/* ========== 步骤列表 ========== */
.steps { display: flex; flex-direction: column; gap: 24px; }
.step-item {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}
.step-num {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--secondary);
  font-variant-numeric: tabular-nums;
  box-shadow: 0 4px 12px rgba(12, 90, 77, 0.18);
}
.step-body h4 { font-size: 17px; font-weight: 600; margin-bottom: 4px; color: var(--primary-dark); }
.step-body p { font-size: 14px; line-height: 1.7; color: var(--text-light); }

/* ========== 准备清单 ========== */
.check-list { display: flex; flex-direction: column; gap: 16px; }
.check-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  box-shadow: var(--shadow);
  border-left: 3px solid var(--secondary);
  transition: var(--transition);
}
.check-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.check-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--bg-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--primary);
}
.check-item h4 { font-size: 16px; font-weight: 600; margin-bottom: 2px; color: var(--primary-dark); }
.check-item p { font-size: 14px; color: var(--text-light); line-height: 1.6; }

/* ========== 安全区（深色） ========== */
.security-section {
  background: var(--primary-dark);
  color: #fff;
}
.security-section h2 { color: #fff; }
.security-section .section-head p { color: rgba(255, 255, 255, 0.7); }
.security-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}
.security-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
}
.security-card:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-4px);
  border-color: rgba(217, 164, 65, 0.4);
}
.security-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(217, 164, 65, 0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 14px;
}
.security-card h3 { color: #fff; font-size: 17px; margin-bottom: 8px; }
.security-card p { color: rgba(255, 255, 255, 0.7); font-size: 14px; line-height: 1.65; }
.security-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: rgba(217, 164, 65, 0.12);
  border-radius: var(--radius-md);
  padding: 16px 24px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 14px;
  border: 1px dashed rgba(217, 164, 65, 0.4);
}
@media (max-width: 768px) {
  .security-grid { grid-template-columns: 1fr; }
  .security-card { padding: 20px; }
}

/* ========== 数据徽章 ========== */
.metric-bar {
  display: flex;
  justify-content: space-around;
  background: var(--primary-dark);
  border-radius: var(--radius-lg);
  padding: 24px 16px;
  margin-top: 40px;
  flex-wrap: wrap;
  gap: 12px;
}
.metric-item {
  text-align: center;
  background: rgba(255, 255, 255, 0.06);
  padding: 16px 24px;
  border-radius: 16px;
  min-width: 130px;
}
.metric-num {
  font-size: 36px;
  font-weight: 700;
  color: var(--secondary);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}
.metric-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 4px;
}
@media (max-width: 768px) {
  .metric-bar { flex-wrap: wrap; }
  .metric-item { flex: 1 1 40%; min-width: 110px; padding: 12px; }
  .metric-num { font-size: 28px; }
}

/* ========== FAQ ========== */
.faq-grid {
  max-width: 860px;
  margin: 0 auto;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.faq-item {
  border-bottom: 1px solid rgba(216, 210, 197, 0.5);
  transition: var(--transition);
}
.faq-item:last-child { border-bottom: none; }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 8px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary-dark);
  transition: color 0.2s;
}
.faq-question:hover { color: var(--primary); }
.faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--secondary);
  color: var(--primary-dark);
  font-size: 16px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease;
}
.faq-item.active .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
  padding: 0 8px;
}
.faq-answer-inner {
  padding: 0 0 20px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-light);
  border-left: 2px solid var(--secondary);
  padding-left: 16px;
}
.faq-item.active .faq-answer { max-height: 400px; }
@media (max-width: 768px) {
  .faq-grid { padding: 20px; }
  .faq-question { font-size: 15px; padding: 16px 4px; }
}

/* ========== CTA ========== */
.cta-section {
  background: var(--primary);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  border: 2px dashed rgba(217, 164, 65, 0.3);
  top: -60px;
  left: -60px;
}
.cta-section::after {
  content: '';
  position: absolute;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 2px dashed rgba(217, 164, 65, 0.2);
  bottom: -40px;
  right: -40px;
}
.cta-inner {
  text-align: center;
  position: relative;
  z-index: 1;
}
.cta-inner h2 { color: #fff; font-size: 32px; margin-bottom: 12px; }
.cta-inner p { color: rgba(255, 255, 255, 0.8); font-size: 15px; margin-bottom: 28px; }
.cta-inner .btn { min-width: 160px; }
@media (max-width: 768px) {
  .cta-section { padding: 56px 0; }
  .cta-inner h2 { font-size: 24px; }
}

/* ========== Footer ========== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.7);
  padding-top: 56px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 40px;
}
.footer-brand h3 {
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}
.brand-line {
  width: 36px;
  height: 2px;
  background: var(--secondary);
  margin-bottom: 16px;
}
.footer-brand p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  line-height: 1.8;
  max-width: 320px;
}
.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  margin-bottom: 10px;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--secondary); }
.footer-col p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
  line-height: 1.8;
  margin-bottom: 6px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
  text-align: center;
}
.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; gap: 32px; padding-bottom: 32px; }
  .footer-brand p { max-width: 100%; }
}

/* ========== 响应式细节 ========== */
@media (max-width: 520px) {
  h1 { font-size: 30px; }
  h2 { font-size: 22px; }
  .category-banner { padding: 40px 0 44px; }
  .banner-content h1 { font-size: 28px; }
  .banner-content p { font-size: 14px; }
  .content-row { gap: 16px; }
  .metric-bar { padding: 16px; }
}

/* roulang page: category2 */
:root {
            --primary: #0C5A4D;
            --primary-dark: #0A322B;
            --primary-deep: #06231F;
            --accent: #D9A441;
            --accent-light: #E0B354;
            --bg: #F7F4EE;
            --surface: #FFFFFF;
            --green-soft: #E6EFEB;
            --text: #17352E;
            --text-soft: #5B6F68;
            --border: #D8D2C5;
            --radius-lg: 20px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow: 0 6px 24px rgba(12, 90, 77, 0.08);
            --shadow-hover: 0 12px 32px rgba(12, 90, 77, 0.14);
            --font-title: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans CN", "Microsoft YaHei", sans-serif;
            --font-body: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans CN", "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-body);
            font-size: 15px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

        body.no-scroll {
            overflow: hidden;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color .25s ease;
        }

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 48px;
            padding-right: 48px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 15px;
            padding: 12px 24px;
            text-decoration: none;
            transition: all .25s ease;
            cursor: pointer;
            border: 2px solid transparent;
            line-height: 1.2;
        }

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

        .btn-accent:hover {
            background: var(--accent-light);
            transform: scale(1.02);
            box-shadow: 0 6px 16px rgba(217, 164, 65, 0.28);
        }

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

        .btn-ghost:hover {
            background: var(--green-soft);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: 16px;
        }

        .section-label {
            display: inline-block;
            color: var(--accent);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 16px;
        }

        .section-sub {
            color: var(--text-soft);
            max-width: 720px;
            line-height: 1.75;
            margin-bottom: 32px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--primary);
            height: 64px;
            box-shadow: 0 4px 16px rgba(6, 35, 31, 0.18);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 16px;
        }

        .nav-left {
            display: flex;
            align-items: center;
            gap: 36px;
            min-width: 0;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-weight: 700;
            font-size: 17px;
            letter-spacing: .5px;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .brand-mark {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            background: var(--accent);
            color: var(--primary-dark);
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 15px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 22px;
            list-style: none;
        }

        .nav-link {
            color: rgba(255, 255, 255, 0.82);
            font-size: 14px;
            font-weight: 500;
            text-decoration: none;
            padding: 8px 2px;
            border-bottom: 2px solid transparent;
            transition: color .25s ease, border-color .25s ease;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: #fff;
            border-color: var(--accent);
        }

        .nav-link.active {
            color: #fff;
            border-color: var(--accent);
            font-weight: 700;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-sm);
            padding: 6px 12px;
            gap: 6px;
            transition: background .25s ease, box-shadow .25s ease;
        }

        .nav-search:focus-within {
            background: #fff;
            box-shadow: 0 0 0 2px var(--accent);
        }

        .nav-search .search-icon {
            color: rgba(255, 255, 255, 0.8);
            font-size: 15px;
            line-height: 1;
            transition: color .25s;
        }

        .nav-search:focus-within .search-icon {
            color: var(--primary);
        }

        .nav-search input {
            background: transparent;
            border: none;
            color: #fff;
            width: 100px;
            font-size: 13px;
            line-height: 1.4;
            transition: width .25s ease;
        }

        .nav-search input::placeholder {
            color: rgba(255, 255, 255, 0.55);
        }

        .nav-search:focus-within input {
            color: var(--primary-dark);
            width: 130px;
        }

        .nav-search:focus-within input::placeholder {
            color: rgba(23, 53, 46, 0.45);
        }

        .nav-search.mobile-search {
            display: none;
        }

        .nav-cta {
            padding: 9px 18px;
            font-size: 14px;
            white-space: nowrap;
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 24px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: background .25s;
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        .page-hero {
            padding: 88px 0 72px;
            background: var(--bg);
        }

        .hero-split {
            display: grid;
            grid-template-columns: 1.05fr 0.95fr;
            gap: 56px;
            align-items: center;
        }

        .hero-copy h1 {
            font-size: 44px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--text);
            margin-bottom: 12px;
            letter-spacing: .5px;
        }

        .hero-copy h1 .highlight {
            color: var(--primary);
        }

        .hero-rule {
            width: 40px;
            height: 2px;
            background: var(--accent);
            margin: 20px 0 24px;
        }

        .hero-copy p {
            font-size: 16px;
            color: var(--text-soft);
            line-height: 1.75;
            max-width: 480px;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-media {
            position: relative;
        }

        .hero-image {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-hover);
            overflow: hidden;
            background: var(--green-soft);
        }

        .hero-image img {
            width: 100%;
            height: 360px;
            object-fit: cover;
        }

        .hero-badge {
            position: absolute;
            right: 18px;
            bottom: 18px;
            background: rgba(255, 255, 255, 0.92);
            border-radius: var(--radius-md);
            padding: 12px 18px;
            box-shadow: 0 6px 18px rgba(0, 0, 0, 0.1);
            backdrop-filter: blur(4px);
        }

        .hero-badge .badge-num {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }

        .hero-badge .badge-label {
            font-size: 12px;
            color: var(--text-soft);
            display: block;
        }

        .toc-bar {
            background: var(--bg);
            padding: 0 0 16px;
        }

        .toc-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            padding: 12px 0;
        }

        .toc-chip {
            background: var(--green-soft);
            color: var(--primary-dark);
            border-radius: var(--radius-pill);
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            text-decoration: none;
            transition: background .25s ease, color .25s ease, box-shadow .25s ease;
        }

        .toc-chip:hover,
        .toc-chip.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(12, 90, 77, 0.2);
        }

        .split-section {
            padding: 96px 0;
        }

        .split-section.alt {
            background: var(--green-soft);
        }

        .split-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .split-media {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            background: #fff;
        }

        .split-media img {
            width: 100%;
            height: 340px;
            object-fit: cover;
            transition: transform .3s ease;
        }

        .split-media:hover img {
            transform: scale(1.02);
        }

        .split-body .section-label {
            display: inline-block;
            color: var(--accent);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .split-body h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 18px;
            color: var(--text);
        }

        .split-body p {
            color: var(--text-soft);
            line-height: 1.75;
            margin-bottom: 20px;
            max-width: 520px;
        }

        .check-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .check-list li {
            position: relative;
            padding-left: 30px;
            margin-bottom: 14px;
            color: var(--text-soft);
            font-size: 15px;
            line-height: 1.6;
        }

        .check-list li::before {
            content: "✓";
            position: absolute;
            left: 0;
            top: 0;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--green-soft);
            color: var(--primary);
            font-size: 12px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .step-list {
            list-style: none;
            padding: 0;
            margin: 0;
            counter-reset: step;
        }

        .step-list li {
            counter-increment: step;
            position: relative;
            padding-left: 56px;
            margin-bottom: 20px;
            min-height: 40px;
        }

        .step-list li::before {
            content: counter(step);
            position: absolute;
            left: 0;
            top: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 2px solid var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #fff;
            box-shadow: 0 2px 6px rgba(12, 90, 77, 0.08);
        }

        .step-list li .step-title {
            font-weight: 700;
            color: var(--text);
            display: block;
            margin-bottom: 2px;
        }

        .step-list li .step-desc {
            color: var(--text-soft);
            font-size: 14px;
            line-height: 1.6;
        }

        .data-strip {
            background: var(--primary-dark);
            padding: 72px 0;
        }

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

        .data-item {
            text-align: center;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 16px;
            padding: 28px 16px;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .data-num {
            font-size: 44px;
            font-weight: 700;
            color: var(--accent);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
            display: block;
            margin-bottom: 8px;
        }

        .data-label {
            color: rgba(255, 255, 255, 0.9);
            font-size: 14px;
            font-weight: 400;
        }

        .faq-section {
            background: var(--green-soft);
            padding: 96px 0;
        }

        .faq-card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            max-width: 860px;
            margin: 0 auto;
            padding: 16px 40px;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 20px 0;
            transition: background .25s;
        }

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

        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.4;
        }

        .faq-icon {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 400;
            flex-shrink: 0;
            transition: transform .3s ease, background .3s;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease, padding .35s ease;
            color: var(--text-soft);
            font-size: 14px;
            line-height: 1.75;
            padding-top: 0;
        }

        .faq-item.open .faq-a {
            max-height: 360px;
            padding-top: 14px;
        }

        .cta-banner {
            background: var(--primary);
            color: #fff;
            padding: 72px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before,
        .cta-banner::after {
            content: "";
            position: absolute;
            border-radius: 50%;
            border: 2px dashed rgba(217, 164, 65, 0.3);
            width: 180px;
            height: 180px;
            top: -40px;
        }

        .cta-banner::before {
            left: 40px;
        }

        .cta-banner::after {
            right: 40px;
            bottom: -60px;
            top: auto;
        }

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

        .cta-banner h2 {
            font-size: 30px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .cta-banner p {
            color: rgba(255, 255, 255, 0.82);
            max-width: 520px;
            margin: 0 auto 32px;
            font-size: 15px;
        }

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

        .site-footer {
            background: var(--primary-dark);
            color: #fff;
            padding: 64px 0 0;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.4fr;
            gap: 48px;
            padding-bottom: 48px;
        }

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .brand-line {
            width: 32px;
            height: 2px;
            background: var(--accent);
            margin-bottom: 16px;
        }

        .footer-brand p,
        .footer-col p,
        .footer-col a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
            line-height: 1.8;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.95);
            margin-bottom: 14px;
        }

        .footer-col a {
            display: block;
            margin-bottom: 10px;
            transition: color .25s;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
        }

        .footer-bottom .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-bottom p {
            color: rgba(255, 255, 255, 0.5);
            font-size: 12px;
        }

        @media (max-width: 1024px) {
            .container {
                padding-left: 32px;
                padding-right: 32px;
            }

            .nav-left {
                gap: 20px;
            }

            .nav-links {
                gap: 14px;
            }

            .hero-copy h1 {
                font-size: 38px;
            }

            .hero-split {
                gap: 36px;
            }

            .split-grid {
                gap: 36px;
            }

            .split-media img {
                height: 300px;
            }
        }

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

            .site-header {
                height: 56px;
            }

            .nav-search:not(.mobile-search) {
                display: none;
            }

            .nav-search.mobile-search {
                display: flex;
                width: 100%;
                background: rgba(255, 255, 255, 0.12);
                margin-bottom: 8px;
            }

            .nav-search.mobile-search:focus-within {
                background: #fff;
            }

            .nav-links {
                position: absolute;
                top: 56px;
                left: 0;
                right: 0;
                background: var(--primary);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 16px 20px;
                display: none;
                box-shadow: 0 12px 24px rgba(6, 35, 31, 0.3);
                max-height: calc(100vh - 56px);
                overflow-y: auto;
            }

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

            .nav-links .nav-link {
                width: 100%;
                padding: 12px 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
                border-left: 3px solid transparent;
                border-radius: 0;
                font-size: 15px;
            }

            .nav-links .nav-link:hover,
            .nav-links .nav-link.active {
                color: #fff;
                border-left-color: var(--accent);
                border-bottom-color: rgba(255, 255, 255, 0.1);
            }

            .nav-cta {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .page-hero {
                padding: 56px 0 48px;
            }

            .hero-split {
                grid-template-columns: 1fr;
                gap: 32px;
            }

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

            .hero-copy p {
                font-size: 15px;
            }

            .hero-image img {
                height: 260px;
            }

            .split-section {
                padding: 64px 0;
            }

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

            .split-grid .split-media {
                order: -1;
            }

            .split-grid.reversed .split-media {
                order: -1;
            }

            .split-media img {
                height: 240px;
            }

            .split-body h2 {
                font-size: 24px;
            }

            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .data-item {
                padding: 20px 12px;
            }

            .data-num {
                font-size: 34px;
            }

            .faq-section {
                padding: 64px 0;
            }

            .faq-card {
                padding: 8px 24px;
            }

            .faq-q {
                font-size: 15px;
            }

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

            .cta-banner h2 {
                font-size: 24px;
            }

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

            .footer-bottom .container {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .hero-copy h1 {
                font-size: 28px;
            }

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

            .toc-list {
                flex-wrap: nowrap;
                overflow-x: auto;
                padding-bottom: 8px;
                -webkit-overflow-scrolling: touch;
            }

            .toc-chip {
                white-space: nowrap;
                flex-shrink: 0;
                padding: 8px 16px;
            }

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

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