/* roulang page: index */
:root{
  --green-deep:#0B3D2E;
  --green-mid:#145243;
  --green-bright:#2F9E44;
  --green-soft:#E8F0E9;
  --orange:#FF5A1F;
  --orange-dark:#E64E14;
  --bg-warm:#F7F5F0;
  --charcoal:#1B1B1B;
  --gray-text:#5C635D;
  --gray-weak:#8A9189;
  --border:#E5E1D8;
  --white:#FFFFFF;
  --radius-sm:4px;
  --radius-md:6px;
  --radius-pill:999px;
  --shadow-card:0 1px 3px rgba(11,61,46,0.08);
  --shadow-hover:0 8px 24px rgba(11,61,46,0.12);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans SC",sans-serif;
  --num-font:"DIN Alternate","Roboto Condensed","Arial Narrow",var(--font-sans);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--charcoal);
  background:var(--bg-warm);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
button{font-family:inherit;cursor:pointer;}
ul,ol{list-style:none;margin:0;padding:0;}
.grid-container{max-width:1320px;padding-left:24px;padding-right:24px;}
a:focus-visible,button:focus-visible{outline:2px solid var(--green-bright);outline-offset:3px;border-radius:2px;}

/* Site Header */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(255,255,255,0.1);
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(255,255,255,0.92);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  border-bottom:1px solid var(--border);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;position:relative;z-index:1060;
}
.logo{
  font-size:24px;font-weight:700;letter-spacing:0.06em;color:#fff;
  display:inline-flex;align-items:baseline;line-height:1;
  transition:color .3s ease;
}
.logo span{font-weight:400;color:rgba(255,255,255,0.92);letter-spacing:0;transition:color .3s ease;}
.site-header.scrolled .logo{color:var(--green-deep);}
.site-header.scrolled .logo span{color:var(--charcoal);}
.nav-links{
  display:flex;align-items:center;gap:36px;margin:0;
}
.nav-links a{
  font-size:14px;font-weight:500;letter-spacing:0.05em;
  color:rgba(255,255,255,0.95);
  padding:10px 0;position:relative;display:inline-block;
  transition:color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;bottom:2px;left:50%;transform:translateX(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--orange);
  opacity:0;transition:opacity .2s ease;
}
.nav-links a:hover{color:#fff;}
.nav-links a.active{color:#fff;font-weight:600;}
.nav-links a.active::after{opacity:1;}
.site-header.scrolled .nav-links a{color:var(--charcoal);}
.site-header.scrolled .nav-links a:hover{color:var(--green-deep);}
.site-header.scrolled .nav-links a.active{color:var(--green-deep);}
.site-header.scrolled .nav-links a.active::after{opacity:1;}
.hamburger{
  display:none;flex-direction:column;justify-content:center;gap:6px;
  width:44px;height:44px;background:none;border:none;padding:0;
  z-index:1070;position:relative;
}
.hamburger span{
  display:block;width:22px;height:2px;margin-left:auto;
  background:#fff;transition:transform .3s ease,opacity .3s ease,background .3s ease;
}
.site-header.scrolled .hamburger span{background:var(--green-deep);}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(4px) rotate(45deg);}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-4px) rotate(-45deg);}

/* Hero */
.hero{
  position:relative;min-height:660px;display:flex;align-items:center;
  overflow:hidden;color:#fff;
}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  background-color:var(--green-deep);
}
.hero-overlay{
  position:absolute;inset:0;background:linear-gradient(135deg,rgba(11,61,46,0.93) 0%,rgba(47,158,68,0.72) 100%);
}
.hero-texture{
  position:absolute;inset:0;z-index:1;pointer-events:none;
  background:repeating-linear-gradient(-45deg,rgba(255,255,255,0.02) 0,rgba(255,255,255,0.02) 2px,transparent 2px,transparent 14px);
}
.hero-content{
  position:relative;z-index:2;width:100%;
  padding:144px 0 170px;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:14px;letter-spacing:0.14em;color:rgba(255,255,255,0.85);
  margin-bottom:24px;
}
.hero-eyebrow::before{
  content:"";width:28px;height:2px;background:var(--orange);
}
.hero-title{
  font-size:48px;line-height:1.28;font-weight:700;max-width:760px;margin:0 0 22px;
  letter-spacing:0.02em;
}
.hero-title .brand-mark{
  color:var(--orange);font-weight:800;letter-spacing:0.02em;
}
.hero-sub{
  font-size:17px;line-height:1.85;color:rgba(255,255,255,0.88);
  max-width:600px;margin:0 0 40px;
}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 30px;border-radius:var(--radius-sm);
  font-size:16px;font-weight:600;border:none;gap:8px;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--orange);color:#fff;}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-2px);box-shadow:0 8px 20px rgba(255,90,31,0.3);}
.btn-outline{
  background:transparent;border:1px solid rgba(255,255,255,0.7);color:#fff;
}
.btn-outline:hover{background:rgba(255,255,255,0.1);border-color:#fff;transform:translateY(-2px);}
.btn-green{background:var(--green-deep);color:#fff;}
.btn-green:hover{background:#092F24;transform:translateY(-2px);box-shadow:0 8px 20px rgba(11,61,46,0.25);}
.btn-ghost{background:#fff;border:1px solid var(--green-deep);color:var(--green-deep);}
.btn-ghost:hover{background:var(--green-soft);transform:translateY(-2px);}
.hero-stats{
  position:absolute;bottom:0;left:0;right:0;z-index:2;
  padding:26px 0 28px;
  border-top:1px solid rgba(255,255,255,0.16);
  background:rgba(11,61,46,0.25);
  backdrop-filter:blur(2px);
}
.stats-row{display:flex;align-items:center;}
.stat-item{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;
  position:relative;
}
.stat-item + .stat-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:1px;height:38px;background:rgba(255,255,255,0.2);
}
.stat-num{
  font-family:var(--num-font);font-size:32px;font-weight:700;color:#fff;line-height:1.2;
}
.stat-label{font-size:13px;color:rgba(255,255,255,0.78);letter-spacing:0.04em;}

/* Sections base */
.section{padding:88px 0;}
.section-alt{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.section-head{
  margin-bottom:48px;display:flex;align-items:flex-end;
  justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.section-title{
  font-size:32px;line-height:1.3;font-weight:700;color:var(--charcoal);
  margin:0 0 10px;position:relative;
}
.section-title::after{
  content:"";display:block;width:44px;height:4px;border-radius:2px;
  background:var(--green-bright);margin-top:12px;
}
.section-desc{
  color:var(--gray-text);font-size:15px;max-width:560px;margin:0;line-height:1.7;
}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--green-deep);
  padding-bottom:4px;position:relative;flex-shrink:0;
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;
  background:var(--green-deep);transition:width .3s ease;
}
.text-link:hover::after{width:100%;}
.text-link i{transition:transform .2s ease;}
.text-link:hover i{transform:translateX(4px);}

/* Collection chapters */
.collection-strips{
  border-top:1px solid var(--border);
}
.collection-row{
  display:flex;align-items:center;gap:28px;
  padding:30px 16px;border-bottom:1px solid var(--border);
  transition:background .2s ease,padding .2s ease,border-radius .2s ease;
}
.collection-row:hover{
  background:var(--green-soft);padding-left:24px;padding-right:24px;
  border-radius:var(--radius-md);
}
.row-num{
  font-family:var(--num-font);font-size:24px;font-weight:700;
  color:var(--green-bright);width:48px;flex-shrink:0;letter-spacing:0.04em;
}
.row-icon{
  width:48px;height:48px;border-radius:var(--radius-md);flex-shrink:0;
  background:var(--bg-warm);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  color:var(--green-deep);font-size:18px;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.collection-row:hover .row-icon{background:#fff;border-color:var(--green-bright);color:var(--green-bright);}
.row-text{flex:1;min-width:0;}
.row-title{
  font-size:18px;font-weight:600;color:var(--charcoal);margin-bottom:4px;
  display:block;
}
.row-desc{
  font-size:14px;color:var(--gray-text);line-height:1.6;display:block;
}
.row-arrow{
  font-size:16px;color:var(--green-deep);flex-shrink:0;
  transition:transform .2s ease;
}
.collection-row:hover .row-arrow{transform:translateX(6px);}

/* News / CMS list */
.news-list{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);
  overflow:hidden;box-shadow:var(--shadow-card);
}
.news-item{
  display:flex;align-items:center;gap:28px;
  padding:30px 32px;border-bottom:1px solid var(--border);
  transition:background .2s ease;
}
.news-item:last-child{border-bottom:none;}
.news-item:hover{background:#FBFAF7;}
.news-date{
  flex-shrink:0;width:96px;text-align:center;
  border-right:1px solid var(--border);padding-right:24px;
  display:flex;flex-direction:column;align-items:center;gap:2px;
}
.news-day{
  font-family:var(--num-font);font-size:36px;font-weight:700;line-height:1.1;
  color:var(--green-deep);
}
.news-month{font-size:13px;color:var(--gray-weak);letter-spacing:0.04em;}
.news-main{flex:1;min-width:0;}
.news-badge{
  display:inline-block;padding:3px 12px;border-radius:10px;
  background:rgba(47,158,68,0.12);color:var(--green-deep);
  font-size:12px;font-weight:600;letter-spacing:0.03em;margin-bottom:8px;
}
.news-title{
  font-size:18px;font-weight:600;line-height:1.5;margin:0 0 6px;
}
.news-title a{
  display:inline-block;transition:color .2s ease,transform .2s ease;
}
.news-title a:hover{color:var(--green-deep);transform:translateX(4px);}
.news-summary{
  font-size:14px;color:var(--gray-text);line-height:1.6;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-link{flex-shrink:0;}
.news-link a{
  white-space:nowrap;font-size:14px;color:var(--green-deep);font-weight:600;
  display:inline-flex;align-items:center;gap:6px;
  opacity:0;transform:translateX(-10px);
  transition:opacity .2s ease,transform .2s ease;
}
.news-item:hover .news-link a{opacity:1;transform:translateX(0);}
.news-link i{transition:transform .2s ease;}
.news-link a:hover i{transform:translateX(4px);}
.empty-state{
  min-height:160px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;color:var(--gray-weak);font-size:14px;
}
.empty-icon{
  width:44px;height:44px;border-radius:12px;
  background:var(--green-soft);display:flex;align-items:center;justify-content:center;
  color:var(--green-bright);font-size:16px;
}

/* Related cards */
.related-grid{display:flex;flex-wrap:wrap;margin:0 -12px;}
.related-col{width:25%;padding:0 12px;margin-bottom:24px;}
.related-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);
  overflow:hidden;box-shadow:var(--shadow-card);height:100%;
  transition:box-shadow .3s ease,transform .3s ease;
  display:flex;flex-direction:column;
}
.related-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-6px);}
.related-thumb{height:182px;overflow:hidden;position:relative;background:var(--green-soft);}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.related-card:hover .related-thumb img{transform:scale(1.03);}
.related-body{padding:20px 20px 24px;display:flex;flex-direction:column;flex:1;}
.related-tag{
  display:inline-block;padding:2px 10px;border-radius:var(--radius-pill);
  background:rgba(47,158,68,0.1);color:var(--green-deep);
  font-size:12px;margin-bottom:12px;font-weight:600;align-self:flex-start;
}
.related-title{font-size:16px;font-weight:600;line-height:1.5;margin:0 0 8px;}
.related-title a{transition:color .2s ease;}
.related-title a:hover{color:var(--green-deep);}
.related-desc{font-size:13px;color:var(--gray-text);line-height:1.6;margin:0;}

/* CTA banner */
.cta-banner{
  background:var(--bg-warm);border-top:2px solid var(--green-deep);
  position:relative;overflow:hidden;
}
.cta-banner::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(-45deg,rgba(47,158,68,0.05) 0,rgba(47,158,68,0.05) 6px,transparent 6px,transparent 24px);
  pointer-events:none;
}
.cta-inner{
  position:relative;display:flex;align-items:center;justify-content:space-between;
  gap:32px;padding:64px 0;flex-wrap:wrap;
}
.cta-title{font-size:26px;font-weight:700;margin:0 0 8px;color:var(--charcoal);}
.cta-desc{font-size:14px;color:var(--gray-text);margin:0;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* Share popup */
.share-mask{
  position:fixed;inset:0;background:rgba(11,61,46,0.4);z-index:1999;
  opacity:0;pointer-events:none;transition:opacity .25s ease;
}
.share-mask.open{opacity:1;pointer-events:auto;}
.share-popup{
  position:fixed;top:50%;left:50%;z-index:2000;
  transform:translate(-50%,-50%) scale(0.92);
  background:#fff;border-radius:12px;border:1px solid var(--border);
  box-shadow:0 24px 60px rgba(0,0,0,0.18);
  padding:36px 32px 32px;width:280px;text-align:center;
  opacity:0;pointer-events:none;transition:all .25s ease;
}
.share-popup.open{opacity:1;pointer-events:auto;transform:translate(-50%,-50%) scale(1);}
.share-popup-title{font-weight:700;font-size:17px;margin:0 0 24px;color:var(--charcoal);}
.share-close{
  position:absolute;top:12px;right:12px;width:32px;height:32px;
  background:none;border:none;border-radius:50%;
  font-size:16px;color:var(--gray-weak);
  display:flex;align-items:center;justify-content:center;
  transition:background .2s ease,color .2s ease;
}
.share-close:hover{background:var(--green-soft);color:var(--green-deep);}
.share-platforms{display:flex;justify-content:center;gap:28px;}
.share-platform{
  display:flex;flex-direction:column;align-items:center;gap:8px;
  cursor:pointer;color:var(--gray-text);font-size:13px;
  transition:color .2s ease,transform .2s ease;
}
.share-platform:hover{color:var(--green-deep);transform:translateY(-3px);}
.share-platform i{
  width:46px;height:46px;border-radius:50%;
  background:var(--green-soft);color:var(--green-deep);
  font-size:20px;display:flex;align-items:center;justify-content:center;
  transition:background .2s ease,color .2s ease;
}
.share-platform:hover i{background:var(--green-bright);color:#fff;}
.share-toast{
  position:fixed;bottom:80px;left:50%;z-index:3000;
  transform:translateX(-50%) translateY(10px);
  background:var(--green-deep);color:#fff;
  padding:10px 22px;border-radius:var(--radius-pill);
  font-size:14px;opacity:0;pointer-events:none;
  transition:opacity .3s ease,transform .3s ease;
  white-space:nowrap;
}
.share-toast.show{opacity:1;transform:translateX(-50%) translateY(0);}

/* FAQ */
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:16px;}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);
  overflow:hidden;transition:box-shadow .25s ease,border-color .25s ease;
}
.faq-item.open{box-shadow:var(--shadow-card);border-color:rgba(47,158,68,0.35);}
.faq-question{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:22px 24px;background:none;border:none;
  font-size:16px;font-weight:600;color:var(--charcoal);text-align:left;
  transition:color .2s ease;
}
.faq-question:hover{color:var(--green-deep);}
.faq-icon{flex-shrink:0;width:24px;height:24px;display:flex;align-items:center;justify-content:center;}
.faq-icon i{
  font-size:15px;color:var(--green-bright);transition:transform .25s ease;
}
.faq-item.open .faq-icon i{transform:rotate(45deg);}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-answer-inner{
  padding:0 24px 22px;font-size:14px;line-height:1.75;color:var(--gray-text);
  border-top:1px solid transparent;
}
.faq-item.open .faq-answer-inner{border-top-color:var(--border);padding-top:16px;}

/* Footer */
.site-footer{
  background:var(--green-deep);color:#CFD8D0;
  border-top:2px solid var(--green-bright);
}
.footer-main{
  display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1.1fr;
  gap:48px;padding:64px 0 48px;
}
.footer-brand .logo{color:#fff;font-size:26px;}
.footer-brand .logo span{color:#CFD8D0;}
.footer-desc{
  font-size:14px;line-height:1.75;color:rgba(207,216,208,0.72);margin:16px 0 0;max-width:320px;
}
.footer-title{
  font-size:14px;font-weight:600;color:#fff;margin:0 0 18px;
  letter-spacing:0.08em;
}
.footer-links li{margin-bottom:10px;}
.footer-links a{
  font-size:14px;color:rgba(207,216,208,0.72);
  transition:color .2s ease,padding-left .2s ease;
}
.footer-links a:hover{color:#fff;padding-left:4px;}
.footer-contact li{
  display:flex;align-items:baseline;gap:10px;
  font-size:14px;color:rgba(207,216,208,0.72);margin-bottom:12px;
}
.footer-contact i{width:16px;color:var(--green-bright);font-size:13px;text-align:center;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.1);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;
  gap:12px;font-size:13px;color:rgba(207,216,208,0.6);flex-wrap:wrap;
}

/* Tablets */
@media (max-width:1023px){
  .hamburger{display:flex;}
  .nav-links{
    position:fixed;top:0;left:0;right:0;bottom:0;
    background:rgba(247,245,240,0.98);
    flex-direction:column;justify-content:center;align-items:center;
    gap:40px;margin:0;z-index:1050;
    opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .3s ease,visibility .3s ease;
  }
  .nav-links.open{opacity:1;visibility:visible;pointer-events:auto;}
  .nav-links a,.site-header.scrolled .nav-links a,.site-header .nav-links a{
    font-size:22px;font-weight:600;color:var(--charcoal);
  }
  .nav-links a:hover,.site-header.scrolled .nav-links a:hover{color:var(--green-deep);}
  .nav-links a.active,.site-header.scrolled .nav-links a.active{color:var(--green-deep);}
  .nav-links a::after{left:auto;right:-18px;transform:none;top:50%;margin-top:-3px;}
  .section{padding:64px 0;}
  .related-col{width:50%;}
  .footer-main{grid-template-columns:1fr 1fr;gap:40px;}
  .stat-num{font-size:26px;}
}
@media (max-width:639px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:32px;}
  .section-title{font-size:26px;}
  .section-desc{font-size:14px;}
  .hero{min-height:auto;}
  .hero-content{padding:120px 0 170px;}
  .hero-title{font-size:30px;}
  .hero-sub{font-size:15px;}
  .hero-stats{padding:20px 0 22px;}
  .stats-row{flex-wrap:wrap;gap:12px 0;}
  .stat-item{flex:1 1 33%;min-width:100px;}
  .stat-item + .stat-item::before{display:none;}
  .stat-num{font-size:24px;}
  .collection-row{padding:22px 10px;gap:16px;flex-wrap:wrap;}
  .row-icon{width:40px;height:40px;font-size:16px;}
  .row-num{width:36px;font-size:18px;}
  .row-desc{font-size:13px;}
  .news-item{flex-wrap:wrap;gap:14px;padding:22px 18px;}
  .news-date{
    width:auto;border-right:none;padding-right:0;
    flex-direction:row;gap:8px;align-items:baseline;
  }
  .news-day{font-size:28px;}
  .news-link{display:none;}
  .news-title{font-size:16px;}
  .related-col{width:100%;}
  .related-thumb{height:190px;}
  .cta-inner{flex-direction:column;text-align:center;padding:48px 0;}
  .cta-actions{justify-content:center;}
  .faq-question{font-size:15px;padding:18px 18px;}
  .faq-answer-inner{padding:0 18px 18px;}
  .footer-main{grid-template-columns:1fr;gap:32px;padding:48px 0 36px;}
  .footer-bottom{flex-direction:column;text-align:center;}
}

/* Reduced motion */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
}

/* roulang page: article */
:root {
            --primary: #0B3D2E;
            --green: #2F9E44;
            --orange: #FF5A1F;
            --bg: #F7F5F0;
            --text: #1B1B1B;
            --muted: #5C635D;
            --weak: #8A9189;
            --line: #E5E1D8;
            --green-tint: rgba(47, 158, 68, .08);
            --radius: 6px;
            --radius-btn: 4px;
            --shadow-sm: 0 1px 3px rgba(11, 61, 46, .08);
            --shadow-lg: 0 8px 24px rgba(11, 61, 46, .12);
            --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }

        body,
        h1,
        h2,
        h3,
        h4,
        p,
        ul,
        ol,
        figure,
        blockquote {
            margin: 0;
        }

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

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

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

        button,
        input,
        select,
        textarea {
            font: inherit;
        }

        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--orange);
            outline-offset: 2px;
        }

        .grid-container {
            max-width: 1320px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-btn);
            font-size: 16px;
            font-weight: 600;
            line-height: 1;
            border: 1px solid transparent;
            cursor: pointer;
            transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
        }

        .btn:hover {
            transform: translateY(-2px);
        }

        .btn:active {
            transform: translateY(1px);
        }

        .btn-primary {
            background: var(--orange);
            color: #fff;
            box-shadow: 0 6px 18px rgba(255, 90, 31, .24);
        }

        .btn-primary:hover {
            background: #e84e12;
            box-shadow: 0 10px 26px rgba(255, 90, 31, .3);
        }

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

        .btn-dark:hover {
            background: #082e22;
        }

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

        .btn-outline:hover {
            background: #E8F0E9;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 80;
            background: rgba(247, 245, 240, .88);
            -webkit-backdrop-filter: blur(12px);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid transparent;
            transition: border-color .3s ease, box-shadow .3s ease;
        }

        .site-header.scrolled {
            border-bottom-color: var(--line);
            box-shadow: 0 4px 20px rgba(11, 61, 46, .05);
        }

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

        .logo {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: .08em;
            line-height: 1.2;
        }

        .logo span {
            font-weight: 400;
            color: var(--text);
            letter-spacing: .02em;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 36px;
            margin: 0;
        }

        .nav-links li {
            margin: 0;
        }

        .nav-links a {
            font-size: 14px;
            letter-spacing: .05em;
            color: var(--text);
            padding: 8px 0;
            position: relative;
            transition: color .25s;
        }

        .nav-links a::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: 0;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--orange);
            opacity: 0;
            transform: translateX(-50%);
            transition: opacity .3s;
        }

        .nav-links a:hover {
            color: var(--primary);
        }

        .nav-links a.active {
            color: var(--primary);
        }

        .nav-links a.active::after {
            opacity: 1;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: 0;
            padding: 10px;
            cursor: pointer;
        }

        .hamburger span {
            width: 22px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all .3s;
        }

        .article-banner {
            background: linear-gradient(180deg, rgba(11, 61, 46, .82), rgba(11, 61, 46, .94)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 72px 0 64px;
            color: #fff;
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .68);
            margin-bottom: 28px;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, .86);
            transition: color .2s;
        }

        .breadcrumb a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .breadcrumb .sep {
            margin: 0 10px;
            color: rgba(255, 255, 255, .4);
        }

        .breadcrumb .current {
            max-width: 380px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            color: rgba(255, 255, 255, .92);
        }

        .article-title-block .post-cat {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            background: rgba(47, 158, 68, .22);
            color: #D9F0DC;
            padding: 5px 16px;
            border-radius: 999px;
            margin-bottom: 20px;
            transition: background .25s;
        }

        .article-title-block .post-cat:hover {
            background: rgba(47, 158, 68, .38);
            color: #fff;
        }

        .article-title-block h1 {
            font-size: 44px;
            line-height: 1.28;
            font-weight: 700;
            margin: 0 0 22px;
            letter-spacing: .02em;
            max-width: 860px;
            color: #fff;
        }

        .post-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 26px;
            font-size: 14px;
            color: rgba(255, 255, 255, .72);
        }

        .post-meta i {
            margin-right: 7px;
            color: rgba(255, 255, 255, .6);
        }

        .post-layout {
            padding: 56px 0 64px;
        }

        .post-body {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 48px 56px;
        }

        .post-content {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text);
            word-wrap: break-word;
        }

        .post-content>p {
            margin-bottom: 1.5em;
        }

        .post-content h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            margin: 2em 0 1em;
            line-height: 1.4;
        }

        .post-content h2::after {
            content: "";
            display: block;
            width: 42px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--green));
            border-radius: 2px;
            margin-top: 12px;
        }

        .post-content h3 {
            font-size: 22px;
            font-weight: 600;
            margin: 1.8em 0 .8em;
            color: var(--primary);
        }

        .post-content ul {
            list-style: disc;
            padding-left: 1.5em;
            margin-bottom: 1.5em;
        }

        .post-content ol {
            list-style: decimal;
            padding-left: 1.5em;
            margin-bottom: 1.5em;
        }

        .post-content li {
            margin-bottom: .6em;
        }

        .post-content img {
            border-radius: var(--radius);
            margin: 1.5em 0;
            height: auto;
        }

        .post-content blockquote {
            border-left: 3px solid var(--green);
            background: var(--green-tint);
            padding: 1em 1.4em;
            border-radius: 0 var(--radius) var(--radius) 0;
            margin: 1.5em 0;
            color: var(--muted);
        }

        .post-content a {
            color: var(--green);
            border-bottom: 1px solid rgba(47, 158, 68, .3);
            transition: border-color .2s;
        }

        .post-content a:hover {
            border-bottom-color: var(--green);
        }

        .post-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5em 0;
            font-size: 15px;
        }

        .post-content th,
        .post-content td {
            border: 1px solid var(--line);
            padding: 10px 14px;
            text-align: left;
        }

        .post-content th {
            background: var(--green-tint);
            color: var(--primary);
            font-weight: 600;
        }

        .not-found {
            text-align: center;
            padding: 64px 20px;
        }

        .not-found i {
            font-size: 42px;
            color: var(--weak);
            margin-bottom: 16px;
        }

        .not-found p {
            font-size: 18px;
            color: var(--muted);
            margin-bottom: 24px;
        }

        .post-bottom {
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid var(--line);
        }

        .post-tags {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            margin-bottom: 28px;
        }

        .post-tags .tag-label {
            font-size: 14px;
            color: var(--weak);
            margin-right: 4px;
        }

        .tag {
            display: inline-block;
            font-size: 13px;
            background: var(--green-tint);
            color: var(--primary);
            padding: 6px 14px;
            border-radius: 999px;
            transition: background .25s, color .25s;
        }

        .tag:hover {
            background: var(--green);
            color: #fff;
        }

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

        .post-nav a {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 0;
            border-bottom: 2px solid transparent;
            transition: border-color .25s;
        }

        .post-nav a:hover {
            border-bottom-color: var(--green);
        }

        .post-nav .post-nav-prev {
            color: var(--muted);
        }

        .post-nav .post-nav-prev:hover {
            color: var(--primary);
        }

        .side-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 26px 24px;
            margin-bottom: 24px;
            transition: box-shadow .3s;
        }

        .side-card:hover {
            box-shadow: var(--shadow-lg);
        }

        .side-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .side-card h3::before {
            content: "";
            width: 4px;
            height: 18px;
            background: var(--green);
            border-radius: 2px;
        }

        .side-card .side-cover {
            border-radius: var(--radius);
            overflow: hidden;
            margin-bottom: 16px;
        }

        .side-card .side-cover img {
            width: 100%;
            height: 120px;
            object-fit: cover;
            transition: transform .3s;
        }

        .side-card .side-cover:hover img {
            transform: scale(1.03);
        }

        .service-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            padding: 11px 0;
            border-bottom: 1px solid var(--line);
            color: var(--text);
        }

        .service-list li:last-child {
            border-bottom: 0;
        }

        .service-list i {
            width: 22px;
            text-align: center;
            color: var(--green);
            font-size: 15px;
        }

        .side-nav-list a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid var(--line);
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            transition: color .25s, padding-left .25s;
        }

        .side-nav-list a:hover {
            color: var(--green);
            padding-left: 6px;
        }

        .side-nav-list li:last-child a {
            border-bottom: 0;
        }

        .side-nav-list i {
            font-size: 12px;
            color: var(--weak);
        }

        .side-contact p {
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 8px;
        }

        .side-contact i {
            color: var(--green);
            margin-right: 8px;
            width: 18px;
        }

        .side-contact .phone-num {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: .02em;
        }

        .related-section {
            background: #fff;
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
            padding: 72px 0 80px;
        }

        .section-head {
            margin-bottom: 40px;
        }

        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
            letter-spacing: .02em;
        }

        .section-head p {
            font-size: 15px;
            color: var(--muted);
            max-width: 560px;
        }

        .rel-card {
            background: var(--bg);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform .3s, box-shadow .3s;
            display: flex;
            flex-direction: column;
            height: 100%;
        }

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

        .rel-cover {
            position: relative;
            height: 180px;
            overflow: hidden;
        }

        .rel-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .3s;
        }

        .rel-card:hover .rel-cover img {
            transform: scale(1.03);
        }

        .rel-cover .rel-index {
            position: absolute;
            top: 14px;
            left: 14px;
            width: 34px;
            height: 34px;
            background: rgba(11, 61, 46, .86);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .03em;
        }

        .rel-body {
            padding: 20px 22px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .rel-body .rel-tag {
            display: inline-block;
            font-size: 12px;
            color: var(--green);
            background: var(--green-tint);
            border-radius: 999px;
            padding: 4px 12px;
            align-self: flex-start;
            margin-bottom: 12px;
        }

        .rel-body h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.45;
            color: var(--text);
            margin-bottom: 10px;
            transition: color .25s;
        }

        .rel-card:hover .rel-body h3 {
            color: var(--primary);
        }

        .rel-body p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
        }

        .favorite-cta {
            background: linear-gradient(135deg, #F7F5F0 0%, #EAF2E8 100%);
            border-top: 2px solid var(--primary);
            border-bottom: 1px solid var(--line);
            padding: 56px 0;
        }

        .favorite-cta .cta-box {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 28px;
        }

        .cta-text h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .cta-text p {
            font-size: 15px;
            color: var(--muted);
            max-width: 560px;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .site-footer {
            background: var(--primary);
            color: #CFD8D0;
            padding: 64px 0 28px;
            border-top: 2px solid var(--green);
        }

        .site-footer .logo {
            color: #fff;
            font-size: 28px;
        }

        .site-footer .logo span {
            color: #CFD8D0;
        }

        .footer-main {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1.2fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, .12);
        }

        .footer-desc {
            font-size: 14px;
            color: #B7C4B9;
            margin-top: 18px;
            max-width: 320px;
            line-height: 1.8;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: .04em;
        }

        .footer-links li,
        .footer-contact li {
            margin-bottom: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: #B7C4B9;
            transition: color .25s, padding-left .25s;
            line-height: 1.7;
        }

        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-contact li {
            font-size: 14px;
            color: #B7C4B9;
            display: flex;
            align-items: center;
            gap: 10px;
            line-height: 1.7;
        }

        .footer-contact i {
            color: var(--green);
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
            padding-top: 26px;
            font-size: 13px;
            color: rgba(207, 216, 208, .6);
        }

        @media (max-width: 1023px) {
            .nav-links {
                position: absolute;
                top: 76px;
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                background: rgba(247, 245, 240, .98);
                border-bottom: 1px solid var(--line);
                max-height: 0;
                overflow: hidden;
                visibility: hidden;
                padding: 0 24px;
                transition: max-height .4s ease, visibility .4s ease, padding .3s ease;
                box-shadow: 0 18px 30px rgba(11, 61, 46, .08);
            }

            .nav-links.open {
                max-height: 420px;
                visibility: visible;
                padding-top: 16px;
                padding-bottom: 16px;
            }

            .nav-links li {
                border-bottom: 1px solid var(--line);
            }

            .nav-links li:last-child {
                border-bottom: 0;
            }

            .nav-links a {
                display: block;
                padding: 15px 4px;
                font-size: 18px;
                font-weight: 600;
            }

            .nav-links a::after {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .article-banner {
                padding: 52px 0 48px;
            }

            .article-title-block h1 {
                font-size: 34px;
            }

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

        @media (max-width: 767px) {
            .article-banner {
                padding: 42px 0 38px;
            }

            .article-title-block h1 {
                font-size: 30px;
            }

            .post-body {
                padding: 28px 20px;
            }

            .post-content {
                font-size: 15px;
            }

            .breadcrumb .current {
                max-width: 220px;
            }

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

            .favorite-cta .cta-box {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-actions {
                width: 100%;
            }

            .cta-actions .btn {
                flex: 1;
            }

            .rel-cover {
                height: 160px;
            }

            .related-section {
                padding: 56px 0 60px;
            }

            .post-layout {
                padding: 40px 0 48px;
            }
        }

        @media (max-width: 520px) {
            .nav-inner {
                height: 64px;
            }

            .nav-links {
                top: 64px;
            }

            .logo {
                font-size: 21px;
            }

            .article-title-block h1 {
                font-size: 27px;
            }

            .post-meta {
                gap: 8px 16px;
                font-size: 13px;
            }

            .post-content h2 {
                font-size: 23px;
            }

            .section-head h2 {
                font-size: 26px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category1 */
:root {
  --color-primary: #0B3D2E;
  --color-primary-light: #2F9E44;
  --color-accent: #FF5A1F;
  --color-bg: #F7F5F0;
  --color-text: #1B1B1B;
  --color-text-secondary: #5C635D;
  --color-text-muted: #8A9189;
  --color-border: #E5E1D8;
  --radius-card: 6px;
  --radius-btn: 4px;
  --radius-pill: 999px;
  --shadow-card: 0 1px 3px rgba(11,61,46,0.08);
  --shadow-hover: 0 8px 24px rgba(11,61,46,0.12);
  --container-max: 1320px;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-sans); background: var(--color-bg); color: var(--color-text); line-height: 1.75; font-size: 16px; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color .2s, opacity .2s; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

.grid-container { max-width: var(--container-max); padding-left: 24px; padding-right: 24px; }
.grid-padding-x { margin-left: -10px; margin-right: -10px; }
.grid-padding-x > .cell { padding-left: 10px; padding-right: 10px; }

.section-space { padding: 96px 0; }
.section-head { margin-bottom: 48px; }
.section-head.center { text-align: center; }
.section-tag { display: inline-block; background: #E8F0E9; color: var(--color-primary); font-size: 13px; font-weight: 600; padding: 5px 14px; border-radius: var(--radius-pill); letter-spacing: .08em; margin-bottom: 18px; }
.section-title { font-size: 30px; font-weight: 700; line-height: 1.3; color: var(--color-text); margin-bottom: 14px; }
.section-sub { font-size: 16px; color: var(--color-text-secondary); max-width: 640px; margin-top: 8px; line-height: 1.7; }
.section-head.center .section-sub { margin-left: auto; margin-right: auto; }

.btn { display: inline-flex; align-items: center; justify-content: center; height: 48px; padding: 0 28px; border-radius: var(--radius-btn); font-size: 16px; font-weight: 600; letter-spacing: .02em; transition: all .25s; }
.btn-primary { background: var(--color-accent); color: #fff; }
.btn-primary:hover { background: #e04a10; transform: translateY(-2px); box-shadow: 0 6px 16px rgba(255,90,31,.25); }
.btn-primary:active { transform: translateY(0); box-shadow: none; }
.btn-ghost { border: 1px solid rgba(255,255,255,.8); color: #fff; background: transparent; }
.btn-ghost:hover { background: rgba(255,255,255,.12); border-color: #fff; }
.btn-dark { background: var(--color-primary); color: #fff; }
.btn-dark:hover { background: #08291f; transform: translateY(-2px); box-shadow: 0 6px 16px rgba(11,61,46,.25); }
.btn-outline { border: 1px solid var(--color-primary); color: var(--color-primary); background: transparent; }
.btn-outline:hover { background: #E8F0E9; border-color: var(--color-primary); }
.btn:focus-visible, .faq-question:focus-visible, .hamburger:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; }

.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: rgba(247,245,240,.9); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); border-bottom: 1px solid transparent; transition: box-shadow .3s, border-color .3s; }
.site-header.scrolled { box-shadow: 0 1px 0 var(--color-border); border-bottom-color: var(--color-border); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.logo { font-size: 24px; font-weight: 700; color: var(--color-primary); letter-spacing: .08em; line-height: 1; }
.logo span { font-weight: 400; color: var(--color-text); }
.nav-links { display: flex; align-items: center; gap: 36px; margin: 0; }
.nav-links a { font-size: 14px; letter-spacing: .05em; color: var(--color-text); position: relative; padding: 8px 0; display: inline-block; }
.nav-links a:hover { color: var(--color-primary); }
.nav-links a.active::after { content: ''; position: absolute; left: 50%; bottom: -4px; width: 6px; height: 6px; background: var(--color-accent); border-radius: 50%; transform: translateX(-50%); }
.hamburger { display: none; width: 40px; height: 40px; flex-direction: column; align-items: center; justify-content: center; position: relative; z-index: 999; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--color-primary); margin: 3px 0; transition: all .3s; }
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.hero { position: relative; padding: 220px 0 110px; color: #fff; background: linear-gradient(120deg, rgba(11,61,46,.96) 0%, rgba(47,158,68,.82) 100%), url('/assets/images/backpic/back-1.webp') center / cover no-repeat; }
.hero-content { max-width: 760px; }
.hero-tag { display: inline-block; background: rgba(255,255,255,.15); border: 1px solid rgba(255,255,255,.3); color: #fff; padding: 6px 18px; border-radius: var(--radius-pill); font-size: 13px; letter-spacing: .1em; margin-bottom: 26px; }
.hero h1 { font-size: 46px; font-weight: 700; line-height: 1.25; letter-spacing: .01em; margin-bottom: 22px; }
.hero h1 .brand-accent { color: #8CE99A; }
.hero-sub { font-size: 17px; line-height: 1.8; color: rgba(255,255,255,.85); max-width: 640px; margin-bottom: 38px; }
.hero-btns { display: flex; flex-wrap: wrap; gap: 16px; }
.hero-stats { display: flex; border-top: 1px solid rgba(255,255,255,.25); margin-top: 72px; padding-top: 30px; }
.hero-stats div { flex: 1; padding-right: 32px; }
.hero-stats div + div { border-left: 1px solid rgba(255,255,255,.25); padding-left: 32px; }
.hero-stats strong { display: block; font-size: 34px; font-weight: 700; color: #fff; line-height: 1.2; }
.hero-stats span { font-size: 14px; color: rgba(255,255,255,.75); }

.intro-split { background: var(--color-bg); }
.intro-copy h2 { font-size: 32px; font-weight: 700; line-height: 1.35; margin-bottom: 18px; color: var(--color-text); }
.intro-copy p { color: var(--color-text-secondary); font-size: 16px; line-height: 1.85; margin-bottom: 26px; }
.check-list li { position: relative; padding-left: 28px; font-size: 15px; color: var(--color-text); line-height: 1.7; margin-bottom: 14px; }
.check-list li::before { content: '\f00c'; font-family: 'Font Awesome 6 Free'; font-weight: 900; position: absolute; left: 0; top: 2px; color: var(--color-primary-light); font-size: 14px; }
.intro-media { overflow: hidden; border-radius: var(--radius-card); box-shadow: var(--shadow-hover); }
.intro-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }
.intro-media:hover img { transform: scale(1.03); }

.quote-band { background: var(--color-primary); padding: 72px 0; }
.quote-band blockquote { max-width: 900px; margin: 0 auto; text-align: center; padding: 0 24px; }
.quote-band p { font-size: 26px; font-weight: 600; color: #fff; line-height: 1.55; }
.quote-band cite { display: block; margin-top: 20px; font-style: normal; font-size: 14px; color: rgba(255,255,255,.7); letter-spacing: .06em; }

.service-list-section { background: var(--color-bg); }
.service-item { display: flex; align-items: flex-start; gap: 32px; padding: 34px 0; border-bottom: 1px solid var(--color-border); }
.service-item:first-of-type { padding-top: 20px; }
.service-number { font-size: 42px; font-weight: 700; color: var(--color-primary-light); line-height: 1; min-width: 76px; letter-spacing: .02em; }
.service-item h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; color: var(--color-text); }
.service-item p { font-size: 15px; color: var(--color-text-secondary); line-height: 1.8; max-width: 760px; }

.scenario-section { background: #fff; border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.scenario-card { background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius-card); padding: 32px; margin-bottom: 24px; transition: box-shadow .3s, transform .3s; height: 100%; }
.scenario-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.scenario-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; color: var(--color-primary); padding-left: 16px; border-left: 3px solid var(--color-accent); }
.scenario-card p { font-size: 15px; color: var(--color-text-secondary); line-height: 1.75; }

.process-section { background: var(--color-bg); }
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 16px; }
.process-step { background: #fff; border-radius: var(--radius-card); padding: 34px 24px; border-top: 3px solid var(--color-primary-light); box-shadow: var(--shadow-card); transition: box-shadow .3s, transform .3s; }
.process-step:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.step-index { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; border-radius: 50%; background: var(--color-primary); color: #fff; font-weight: 700; font-size: 16px; margin-bottom: 18px; }
.process-step h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: var(--color-text); }
.process-step p { font-size: 14px; color: var(--color-text-secondary); line-height: 1.7; }

.guarantee-section { background: #fff; border-bottom: 1px solid var(--color-border); }
.guarantee-media { overflow: hidden; border-radius: var(--radius-card); box-shadow: var(--shadow-hover); }
.guarantee-media img { width: 100%; height: 100%; object-fit: cover; }
.guarantee-list li { display: flex; flex-direction: column; padding: 22px 0; border-bottom: 1px solid var(--color-border); }
.guarantee-list li:last-child { border-bottom: none; }
.guarantee-list strong { font-size: 17px; font-weight: 700; margin-bottom: 4px; color: var(--color-primary); }
.guarantee-list span { font-size: 15px; color: var(--color-text-secondary); line-height: 1.75; }

.faq-section { background: var(--color-bg); }
.faq-list { max-width: 920px; margin: 20px auto 0; }
.faq-item { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-card); margin-bottom: 16px; overflow: hidden; }
.faq-question { display: flex; justify-content: space-between; align-items: center; width: 100%; padding: 22px 28px; font-size: 16px; font-weight: 600; color: var(--color-text); text-align: left; transition: background .2s; }
.faq-question:hover { background: #FAF8F3; }
.faq-icon { font-size: 24px; font-weight: 300; color: var(--color-primary); transition: transform .3s; display: inline-block; line-height: 1; }
.faq-item.active .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-answer p { padding: 0 28px 26px; font-size: 14px; color: var(--color-text-secondary); line-height: 1.7; }

.cta-band { position: relative; background: linear-gradient(180deg, #F7F5F0 0%, #EDF3EA 100%); border-top: 2px solid var(--color-primary); padding: 80px 0; }
.cta-band::before { content: ''; position: absolute; inset: 0; background: repeating-linear-gradient(-45deg, transparent 0 8px, rgba(47,158,68,.04) 8px 9px); pointer-events: none; }
.cta-inner { position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.cta-copy h2 { font-size: 26px; font-weight: 600; margin-bottom: 8px; color: var(--color-text); }
.cta-copy p { font-size: 15px; color: var(--color-text-secondary); }
.cta-actions { display: flex; gap: 16px; flex-shrink: 0; }

.share-popover { position: fixed; inset: 0; display: flex; align-items: center; justify-content: center; background: rgba(11,61,46,.42); z-index: 1000; opacity: 0; pointer-events: none; transition: opacity .25s; }
.share-popover.show { opacity: 1; pointer-events: auto; }
.share-popover-card { background: #fff; border-radius: var(--radius-card); padding: 36px 40px; min-width: 300px; text-align: center; box-shadow: var(--shadow-hover); transform: translateY(12px); transition: transform .25s; }
.share-popover.show .share-popover-card { transform: translateY(0); }
.share-popover-title { display: block; font-size: 16px; font-weight: 600; margin-bottom: 24px; color: var(--color-text); }
.share-options { display: flex; gap: 32px; justify-content: center; margin-bottom: 28px; }
.share-option { display: flex; flex-direction: column; align-items: center; gap: 8px; font-size: 14px; color: var(--color-text-secondary); transition: color .2s, transform .2s; }
.share-option:hover { color: var(--color-primary); transform: translateY(-3px); }
.share-option i { font-size: 30px; }
.share-close { border: 1px solid var(--color-border); border-radius: var(--radius-btn); padding: 9px 28px; font-size: 14px; color: var(--color-text-secondary); background: #fff; transition: all .2s; }
.share-close:hover { border-color: var(--color-primary); color: var(--color-primary); }

.site-footer { background: var(--color-primary); color: #CFD8D0; padding: 72px 0 32px; border-top: 1px solid var(--color-primary-light); }
.site-footer .logo { color: #fff; }
.site-footer .logo span { color: #CFD8D0; }
.footer-main { display: grid; grid-template-columns: 1.5fr 1fr 1.2fr 1fr; gap: 44px; margin-bottom: 52px; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: #9FB3A6; margin-top: 16px; max-width: 300px; }
.footer-title { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 20px; letter-spacing: .05em; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 14px; color: #A9BDAF; transition: color .2s; }
.footer-links a:hover { color: #fff; }
.footer-contact li { font-size: 14px; color: #A9BDAF; margin-bottom: 10px; display: flex; align-items: center; gap: 10px; }
.footer-contact i { color: #3CA85A; width: 18px; font-size: 14px; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; border-top: 1px solid rgba(255,255,255,.12); padding-top: 24px; font-size: 13px; color: #8AA195; }

@media (max-width: 1023.98px) {
  .nav-links { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(247,245,240,.98); backdrop-filter: blur(8px); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 44px; z-index: 998; opacity: 0; pointer-events: none; transition: opacity .3s; margin: 0; }
  .nav-links.open { opacity: 1; pointer-events: auto; }
  .nav-links li { margin: 0; }
  .nav-links a { font-size: 22px; color: var(--color-text); }
  .hamburger { display: flex; }
  .section-space { padding: 72px 0; }
  .hero { padding: 180px 0 80px; }
  .hero h1 { font-size: 40px; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 32px; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 767.98px) {
  .hero-stats { flex-direction: column; gap: 20px; }
  .hero-stats div + div { border-left: none; padding-left: 0; }
  .hero-stats div { padding-right: 0; }
  .hero-stats strong { font-size: 28px; }
  .section-title { font-size: 26px; }
  .intro-copy h2 { font-size: 27px; }
  .quote-band p { font-size: 21px; }
  .service-item { flex-direction: column; gap: 12px; }
  .service-number { font-size: 34px; min-width: auto; }
  .cta-actions { width: 100%; flex-direction: column; }
  .cta-actions .btn { width: 100%; }
  .footer-bottom { flex-direction: column; gap: 8px; align-items: flex-start; }
}
@media (max-width: 639.98px) {
  .section-space { padding: 56px 0; }
  .hero { padding: 150px 0 64px; }
  .hero h1 { font-size: 30px; }
  .hero-sub { font-size: 15px; }
  .hero-btns { flex-direction: column; width: 100%; }
  .hero-btns .btn { width: 100%; }
  .process-steps { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; }
  .share-popover-card { min-width: 280px; padding: 28px 24px; }
}

/* roulang page: category2 */
:root {
            --c-primary: #0B3D2E;
            --c-primary-bright: #2F9E44;
            --c-accent: #FF5A1F;
            --c-bg: #F7F5F0;
            --c-bg-soft: #E8F0E9;
            --c-text: #1B1B1B;
            --c-text-secondary: #5C635D;
            --c-text-muted: #8A9189;
            --c-border: #E5E1D8;
            --c-footer-text: #CFD8D0;
            --radius-card: 6px;
            --radius-btn: 4px;
            --radius-pill: 999px;
            --shadow-card: 0 1px 3px rgba(11, 61, 46, 0.08);
            --shadow-hover: 0 8px 24px rgba(11, 61, 46, 0.12);
            --space-section: 88px;
            --space-section-mobile: 56px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            background: var(--c-bg);
            color: var(--c-text);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        ul,
        ol {
            padding: 0;
        }

        .grid-container {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== Header ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid transparent;
            transition: border-color 0.3s, box-shadow 0.3s;
        }
        .site-header.scrolled {
            border-bottom-color: var(--c-border);
            box-shadow: 0 2px 16px rgba(11, 61, 46, 0.06);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            font-size: 24px;
            font-weight: 700;
            color: var(--c-primary);
            letter-spacing: 0.08em;
            line-height: 1;
            text-transform: uppercase;
        }
        .logo span {
            font-weight: 400;
            color: var(--c-text);
            letter-spacing: 0.02em;
            text-transform: none;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 36px;
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .nav-links li {
            margin: 0;
        }
        .nav-links a {
            position: relative;
            font-size: 14px;
            letter-spacing: 0.05em;
            color: var(--c-text);
            padding: 10px 0;
            transition: color 0.3s;
        }
        .nav-links a:hover {
            color: var(--c-primary);
        }
        .nav-links a.active {
            color: var(--c-primary);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            left: 50%;
            bottom: 2px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--c-accent);
            transform: translateX(-50%);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            z-index: 200;
        }
        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--c-primary);
            border-radius: 2px;
            transition: transform 0.3s, opacity 0.3s;
        }

        @media (max-width: 1023px) {
            .nav-links {
                position: fixed;
                inset: 0;
                background: rgba(247, 245, 240, 0.98);
                flex-direction: column;
                align-items: center;
                justify-content: center;
                gap: 36px;
                margin: 0;
                z-index: 150;
                display: flex;
                visibility: hidden;
                opacity: 0;
                transition: opacity 0.3s, visibility 0.3s;
            }
            .nav-links.open {
                visibility: visible;
                opacity: 1;
            }
            .nav-links a {
                font-size: 22px;
                color: var(--c-text-secondary);
            }
            .nav-links a.active {
                color: var(--c-primary);
            }
            .hamburger {
                display: flex;
            }
        }

        /* ========== Hero (上图下文) ========== */
        .cat-hero {
            padding-top: 72px;
            background: var(--c-bg);
        }
        .hero-figure {
            position: relative;
            height: 520px;
            overflow: hidden;
        }
        .hero-figure img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .hero-figure::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 61, 46, 0) 30%, rgba(11, 61, 46, 0.55) 100%);
        }
        .hero-content {
            padding: 72px 0 56px;
        }
        .hero-kicker {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.12em;
            color: var(--c-primary-bright);
            background: rgba(47, 158, 68, 0.1);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            margin-bottom: 20px;
            text-transform: uppercase;
        }
        .hero-content h1 {
            font-size: 46px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--c-text);
            margin: 0 0 16px;
            letter-spacing: -0.01em;
        }
        .hero-content h1 .accent {
            color: var(--c-accent);
        }
        .hero-desc {
            font-size: 17px;
            color: var(--c-text-secondary);
            max-width: 640px;
            margin: 0 0 32px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.03em;
            transition: transform 0.2s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
            border: 1px solid transparent;
        }
        .btn-primary {
            background: var(--c-accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(255, 90, 31, 0.28);
        }
        .btn-primary:hover {
            background: #e84e12;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255, 90, 31, 0.32);
        }
        .btn-primary:active {
            transform: translateY(1px);
        }
        .btn-outline {
            border-color: var(--c-primary);
            color: var(--c-primary);
            background: transparent;
        }
        .btn-outline:hover {
            background: var(--c-bg-soft);
        }
        .hero-stats {
            display: flex;
            gap: 0;
            margin-top: 48px;
            border-top: 1px solid var(--c-border);
            padding-top: 28px;
            flex-wrap: wrap;
        }
        .hero-stat {
            display: flex;
            align-items: baseline;
            gap: 10px;
            padding: 0 32px;
            border-left: 1px solid var(--c-border);
        }
        .hero-stat:first-child {
            border-left: none;
            padding-left: 0;
        }
        .hero-stat strong {
            font-size: 26px;
            font-weight: 700;
            color: var(--c-primary);
            line-height: 1.2;
        }
        .hero-stat span {
            font-size: 13px;
            color: var(--c-text-muted);
        }

        @media (max-width: 1023px) {
            .hero-figure {
                height: 360px;
            }
            .hero-content h1 {
                font-size: 36px;
            }
        }
        @media (max-width: 639px) {
            .hero-figure {
                height: 240px;
            }
            .hero-content {
                padding: 48px 0 40px;
            }
            .hero-content h1 {
                font-size: 30px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-stat {
                padding: 12px 0;
                border-left: none;
                border-top: 1px solid var(--c-border);
                width: 100%;
                justify-content: center;
            }
            .hero-stats {
                flex-direction: column;
                gap: 0;
            }
        }

        /* ========== Section 通用 ========== */
        .section {
            padding: var(--space-section) 0;
        }
        .section-white {
            background: #fff;
        }
        .section-head {
            margin-bottom: 56px;
            max-width: 680px;
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.1em;
            color: var(--c-primary-bright);
            background: rgba(47, 158, 68, 0.08);
            border-radius: var(--radius-pill);
            padding: 5px 14px;
            margin-bottom: 12px;
        }
        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--c-text);
            line-height: 1.3;
            margin: 0 0 12px;
        }
        .section-head p {
            font-size: 16px;
            color: var(--c-text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        @media (max-width: 639px) {
            .section {
                padding: var(--space-section-mobile) 0;
            }
            .section-head {
                margin-bottom: 36px;
            }
            .section-head h2 {
                font-size: 26px;
            }
        }

        /* ========== 方案类型 (2列卡片) ========== */
        .plan-section {
            background: #fff;
            border-bottom: 1px solid var(--c-border);
        }
        .plan-grid {
            margin: 0 -10px;
        }
        .plan-grid .column {
            padding: 10px;
        }
        .plan-card {
            background: var(--c-bg);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: box-shadow 0.3s, transform 0.3s;
        }
        .plan-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
        }
        .plan-card-media {
            position: relative;
            height: 220px;
            overflow: hidden;
        }
        .plan-card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s;
        }
        .plan-card:hover .plan-card-media img {
            transform: scale(1.04);
        }
        .plan-card-media .tag {
            position: absolute;
            left: 16px;
            top: 16px;
            background: rgba(11, 61, 46, 0.85);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.04em;
        }
        .plan-card-body {
            padding: 24px 24px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .plan-card-body h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--c-text);
            margin: 0 0 10px;
        }
        .plan-card-body p {
            font-size: 15px;
            color: var(--c-text-secondary);
            line-height: 1.75;
            margin: 0 0 16px;
            flex: 1;
        }
        .plan-meta {
            font-size: 13px;
            color: var(--c-text-muted);
            letter-spacing: 0.02em;
            border-top: 1px solid var(--c-border);
            padding-top: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .plan-meta i {
            color: var(--c-primary-bright);
            font-size: 14px;
        }

        /* ========== 适用场景 ========== */
        .scene-section {
            background: var(--c-bg);
        }
        .scene-grid {
            display: flex;
            gap: 56px;
            align-items: center;
        }
        .scene-media {
            flex: 0 0 44%;
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .scene-media img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }
        .scene-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(11, 61, 46, 0.4));
        }
        .scene-content {
            flex: 1;
        }
        .scene-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .scene-list li {
            position: relative;
            padding: 0 0 24px 28px;
            margin-bottom: 24px;
            border-bottom: 1px solid var(--c-border);
        }
        .scene-list li:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }
        .scene-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--c-primary-bright);
        }
        .scene-list h3 {
            font-size: 18px;
            font-weight: 600;
            margin: 0 0 4px;
            color: var(--c-text);
        }
        .scene-list p {
            font-size: 14px;
            color: var(--c-text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        @media (max-width: 1023px) {
            .scene-grid {
                flex-direction: column;
                gap: 40px;
            }
            .scene-media {
                flex: none;
                width: 100%;
            }
            .scene-media img {
                height: 300px;
            }
            .scene-content {
                width: 100%;
            }
        }

        /* ========== 时间线流程 ========== */
        .process-section {
            background: #fff;
            border-top: 1px solid var(--c-border);
        }
        .timeline {
            position: relative;
            padding-left: 52px;
            max-width: 840px;
            margin: 0 auto;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 16px;
            top: 10px;
            bottom: 10px;
            width: 2px;
            background: linear-gradient(180deg, var(--c-primary-bright), var(--c-border));
        }
        .timeline-item {
            position: relative;
            margin-bottom: 40px;
            padding-bottom: 10px;
        }
        .timeline-item:last-child {
            margin-bottom: 0;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -44px;
            top: 8px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--c-accent);
            border: 3px solid #fff;
            box-shadow: 0 0 0 2px var(--c-accent);
            box-sizing: border-box;
        }
        .timeline-number {
            font-size: 13px;
            font-weight: 700;
            color: var(--c-primary-bright);
            letter-spacing: 0.12em;
            display: block;
            margin-bottom: 4px;
        }
        .timeline-item h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--c-text);
            margin: 0 0 6px;
        }
        .timeline-item p {
            font-size: 15px;
            color: var(--c-text-secondary);
            margin: 0;
            line-height: 1.8;
            max-width: 620px;
        }

        @media (max-width: 639px) {
            .timeline {
                padding-left: 40px;
            }
            .timeline::before {
                left: 12px;
            }
            .timeline-item::before {
                left: -36px;
                width: 12px;
                height: 12px;
            }
            .timeline-item h3 {
                font-size: 17px;
            }
        }

        /* ========== 数据带 ========== */
        .stats-band {
            background: var(--c-primary);
            padding: 56px 0;
        }
        .stats-row {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 0;
            flex-wrap: wrap;
        }
        .stat-item {
            text-align: center;
            padding: 0 56px;
            border-left: 1px solid rgba(207, 216, 208, 0.25);
        }
        .stat-item:first-child {
            border-left: none;
        }
        .stat-item strong {
            display: block;
            font-size: 40px;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
            letter-spacing: -0.02em;
        }
        .stat-item strong em {
            font-style: normal;
            color: var(--c-accent);
        }
        .stat-item span {
            display: block;
            font-size: 14px;
            color: rgba(207, 216, 208, 0.85);
            margin-top: 6px;
            letter-spacing: 0.06em;
        }

        @media (max-width: 639px) {
            .stats-row {
                gap: 0;
                flex-direction: column;
            }
            .stat-item {
                padding: 16px 0;
                border-left: none;
                border-bottom: 1px solid rgba(207, 216, 208, 0.2);
                width: 100%;
            }
            .stat-item:last-child {
                border-bottom: none;
            }
            .stat-item strong {
                font-size: 30px;
            }
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--c-bg);
        }
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--c-border);
            border-radius: var(--radius-card);
            margin-bottom: 16px;
            overflow: hidden;
            transition: box-shadow 0.3s, border-color 0.3s;
        }
        .faq-item.active {
            box-shadow: var(--shadow-hover);
            border-color: rgba(11, 61, 46, 0.2);
        }
        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding: 22px 24px;
            background: none;
            border: none;
            font-size: 16px;
            font-weight: 600;
            color: var(--c-text);
            text-align: left;
            transition: color 0.3s;
        }
        .faq-question:hover {
            color: var(--c-primary);
        }
        .faq-icon {
            position: relative;
            width: 22px;
            height: 22px;
            flex-shrink: 0;
            transition: transform 0.35s;
        }
        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--c-primary);
            border-radius: 2px;
            transition: background 0.3s;
        }
        .faq-icon::before {
            width: 14px;
            height: 2px;
            top: 10px;
            left: 4px;
        }
        .faq-icon::after {
            width: 2px;
            height: 14px;
            top: 4px;
            left: 10px;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            padding: 0 24px;
            font-size: 14px;
            line-height: 1.75;
            color: var(--c-text-secondary);
            transition: max-height 0.35s ease, padding 0.35s ease;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 22px;
        }

        /* ========== CTA ========== */
        .cta-section {
            position: relative;
            background: var(--c-bg);
            border-top: 2px solid var(--c-primary);
            padding: 88px 0;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: repeating-linear-gradient(135deg, transparent 0 12px, rgba(47, 158, 68, 0.05) 12px 24px);
            pointer-events: none;
        }
        .cta-box {
            position: relative;
            max-width: 720px;
            margin: 0 auto;
            text-align: center;
        }
        .cta-box h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--c-text);
            margin: 0 0 16px;
            line-height: 1.3;
        }
        .cta-box p {
            font-size: 16px;
            color: var(--c-text-secondary);
            margin: 0 0 36px;
            line-height: 1.75;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        @media (max-width: 639px) {
            .cta-section {
                padding: 64px 0;
            }
            .cta-box h2 {
                font-size: 26px;
            }
            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--c-primary);
            border-top: 2px solid var(--c-primary-bright);
            padding: 72px 0 32px;
            color: var(--c-footer-text);
        }
        .footer-main {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1.2fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(207, 216, 208, 0.18);
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 26px;
        }
        .footer-brand .logo span {
            color: var(--c-footer-text);
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(207, 216, 208, 0.85);
            margin: 16px 0 0;
            max-width: 300px;
        }
        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 18px;
            letter-spacing: 0.04em;
        }
        .footer-links,
        .footer-contact {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li,
        .footer-contact li {
            margin-bottom: 10px;
            font-size: 14px;
        }
        .footer-links a {
            color: rgba(207, 216, 208, 0.9);
            transition: color 0.3s;
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            line-height: 1.6;
            color: rgba(207, 216, 208, 0.85);
        }
        .footer-contact i {
            color: var(--c-primary-bright);
            width: 16px;
            margin-top: 5px;
            font-size: 14px;
            text-align: center;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 28px;
            font-size: 13px;
            color: rgba(207, 216, 208, 0.7);
        }

        @media (max-width: 1023px) {
            .footer-main {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }
        }
        @media (max-width: 639px) {
            .footer-main {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }