/* roulang page: index */
:root{
  --primary:#157A6E;
  --primary-dark:#0F5A51;
  --primary-soft:#E6F2EF;
  --primary-line:rgba(21,122,110,.24);
  --accent:#D9722F;
  --page-bg:#F7F8F6;
  --card-bg:#FFFFFF;
  --muted-bg:#EFF3F1;
  --dark:#10201C;
  --text:#16201D;
  --text-2:#55615D;
  --text-3:#8B9591;
  --inv:#F2F6F4;
  --line:#E3E8E5;
  --hover-bg:#F1F6F4;
  --success:#2F8F6B;
  --warn:#C98A1E;
  --error:#B4432F;
  --r-btn:10px;
  --r-card:14px;
  --r-img:12px;
  --r-badge:6px;
  --r-pill:999px;
  --sh:0 1px 2px rgba(12,32,28,.05);
  --sh-hover:0 8px 22px rgba(12,32,28,.09);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","SF Pro Display",-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --bs-body-bg:#F7F8F6;
  --bs-body-color:#16201D;
  --bs-primary:#157A6E;
  --bs-border-color:#E3E8E5;
  --bs-link-color:#157A6E;
  --bs-link-hover-color:#0F5A51;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;background:var(--page-bg);color:var(--text);
  font-family:var(--font-cn);font-size:16px;line-height:1.85;font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .22s ease,border-color .22s ease,opacity .22s ease;}
a:hover{color:var(--primary-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:0 0 0 3px var(--primary-soft),0 0 0 1px var(--primary);border-radius:8px;}

/* 容器 */
.container-k{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.container-nav{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
@media (min-width:1440px){.container-k{max-width:1280px;}}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
@media (max-width:991.98px){.section{padding:64px 0;}.section-tight{padding:56px 0;}}
@media (max-width:575.98px){.section{padding:48px 0;}body{font-size:15px;}.container-k,.container-nav{padding:0 20px;}}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:1000;background:rgba(247,248,246,.94);
  backdrop-filter:saturate(160%) blur(6px);border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 1px 2px rgba(12,32,28,.08);background:#fff;}
.nav-bar{display:flex;align-items:center;justify-content:space-between;height:76px;gap:24px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{width:38px;height:38px;flex:0 0 38px;display:grid;place-items:center;border:1px solid var(--primary-line);border-radius:var(--r-badge);background:#fff;}
.brand-mark svg{width:24px;height:24px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-cn{font-size:16px;font-weight:700;letter-spacing:.5px;}
.brand-lat{font-family:var(--font-num);font-size:10px;letter-spacing:2.4px;color:var(--text-3);text-transform:uppercase;}
.nav-links{display:flex;align-items:center;gap:32px;}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--primary);
  transition:width .25s ease;
}
.nav-links a:hover{color:var(--primary);}
.nav-links a:hover::after{width:100%;}
.nav-links a.active{color:var(--primary);}
.nav-links a.active::after{width:100%;}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 20px;
  border-radius:var(--r-pill);background:var(--primary);color:#fff;font-size:14px;font-weight:600;
  transition:background .22s ease,transform .22s ease;
}
.nav-cta:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);}
.nav-toggle{
  display:none;width:40px;height:40px;border:0;background:transparent;padding:0;
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:22px;height:1.6px;background:var(--text);margin:4px 0;border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.nav-drawer{display:none;}
@media (max-width:991.98px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:flex;flex-direction:column;}
  .nav-bar{height:64px;}
  .nav-drawer{
    display:block;position:fixed;inset:64px 0 0 0;background:#fff;z-index:999;
    transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity .22s ease,transform .22s ease;
    overflow-y:auto;padding:8px 20px 40px;
  }
  .nav-drawer.open{opacity:1;transform:translateY(0);pointer-events:auto;}
  .nav-drawer a.d-link{
    display:block;font-size:18px;font-weight:500;color:var(--text);line-height:56px;
    border-bottom:1px solid var(--line);
  }
  .nav-drawer a.d-link.active{color:var(--primary);}
  .drawer-foot{margin-top:24px;display:flex;flex-direction:column;gap:14px;}
  .drawer-foot .nav-cta{display:inline-flex;width:100%;height:46px;}
  .drawer-note{font-size:13px;color:var(--text-3);}
}

/* 按钮 */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);background:var(--primary);color:#fff;
  font-size:15px;font-weight:600;border:1px solid var(--primary);
  transition:background .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-main:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-1px);}
.btn-main:focus-visible{box-shadow:0 0 0 3px var(--primary-soft),0 0 0 1px var(--primary);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  padding:13px 26px;border-radius:var(--r-btn);background:transparent;color:var(--primary);
  border:1px solid var(--primary-line);font-size:15px;font-weight:600;
  transition:background .22s ease,color .22s ease,transform .22s ease;
}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-dark);transform:translateY(-1px);}
.btn-link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--primary);
  background:none;border:0;padding:0;cursor:pointer;
}
.btn-link-arrow svg{width:16px;height:16px;transition:transform .22s ease;}
.btn-link-arrow:hover{color:var(--primary-dark);}
.btn-link-arrow:hover svg{transform:translateX(3px);}
.btn-inv-main{
  display:inline-flex;align-items:center;justify-content:center;padding:14px 30px;border-radius:var(--r-btn);
  background:var(--primary);color:#fff;border:1px solid var(--primary);font-size:15px;font-weight:600;
  transition:background .22s ease,transform .22s ease;
}
.btn-inv-main:hover{background:#1a8f81;color:#fff;transform:translateY(-1px);}
.btn-inv-ghost{
  display:inline-flex;align-items:center;justify-content:center;padding:13px 28px;border-radius:var(--r-btn);
  background:transparent;color:var(--inv);border:1px solid rgba(242,246,244,.34);font-size:15px;font-weight:600;
  transition:background .22s ease,border-color .22s ease,transform .22s ease;
}
.btn-inv-ghost:hover{background:rgba(242,246,244,.08);border-color:rgba(242,246,244,.6);color:#fff;transform:translateY(-1px);}
@media (max-width:575.98px){
  .btn-main,.btn-ghost,.btn-inv-main,.btn-inv-ghost{width:100%;}
}

/* 徽章与标签 */
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;background:var(--primary-soft);color:var(--primary-dark);
  border-radius:var(--r-badge);font-size:12px;padding:4px 10px;font-weight:600;letter-spacing:.3px;
}
.pill{
  display:inline-flex;align-items:center;padding:6px 16px;border-radius:var(--r-pill);
  border:1px solid var(--primary-line);color:var(--primary);font-size:13px;background:#fff;
}
.tag-dot{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
.tag-dot::before{content:"";width:4px;height:4px;background:var(--text-3);display:block;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.sec-title{position:relative;font-size:30px;line-height:1.35;font-weight:700;padding-left:16px;}
.sec-title::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;background:var(--primary);border-radius:2px;}
.sec-sub{margin-top:10px;font-size:15px;color:var(--text-2);padding-left:16px;max-width:720px;}
@media (max-width:767.98px){
  .sec-head{flex-direction:column;align-items:flex-start;margin-bottom:28px;}
  .sec-title{font-size:24px;}
}

/* Hero */
.hero{position:relative;padding:80px 0 88px;overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.06;pointer-events:none;
}
.hero .container-k{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;}
.hero h1{font-size:44px;line-height:1.25;font-weight:700;margin:20px 0 18px;}
.hero-lead{font-size:17px;color:var(--text-2);line-height:1.85;max-width:520px;}
.hero-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-top:32px;}
.hero-note{display:flex;align-items:center;gap:16px;margin-top:36px;font-size:13px;color:var(--text-3);}
.qr-box{
  width:88px;height:88px;flex:0 0 88px;border:1px solid var(--line);border-radius:var(--r-badge);
  background:
    repeating-linear-gradient(90deg,#DDE5E2 0 3px,transparent 3px 6px),
    repeating-linear-gradient(0deg,#DDE5E2 0 3px,transparent 3px 6px),
    #fff;
  display:grid;place-items:center;
}
.qr-box span{background:#fff;font-size:11px;color:var(--text-3);padding:2px 4px;border-radius:4px;}
.hero-visual{position:relative;}
.hero-visual .arc{
  position:absolute;right:-40px;top:-32px;width:220px;height:220px;border:1px solid var(--primary-line);
  border-radius:50%;opacity:.5;
}
.hero-visual .arc.two{right:-72px;top:8px;width:280px;height:280px;opacity:.28;}
.device-frame{
  position:relative;border:1px solid var(--line);border-radius:var(--r-card);background:#fff;
  padding:12px;box-shadow:var(--sh);z-index:2;
}
.device-frame .ratio-box{position:relative;border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/10;background:var(--muted-bg);}
.device-frame img{width:100%;height:100%;object-fit:cover;}
.device-frame::after{
  content:"";position:absolute;inset:12px;border-radius:var(--r-img);
  background:rgba(21,122,110,.06);pointer-events:none;
}
@media (max-width:991.98px){
  .hero{padding:56px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero h1{font-size:34px;}
  .hero-visual{order:2;}
}
@media (max-width:575.98px){
  .hero h1{font-size:27px;}
  .hero-lead{font-size:15px;}
}

/* 横向滚动卡片 */
.rail{display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;}
.rail::-webkit-scrollbar{height:4px;}
.rail::-webkit-scrollbar-thumb{background:var(--line);border-radius:2px;}
.rail-item{flex:0 0 calc((100% - 48px)/3);scroll-snap-align:start;}
@media (max-width:991.98px){.rail-item{flex:0 0 calc((100% - 24px)/2);}}
@media (max-width:575.98px){.rail-item{flex:0 0 82%;}}
.card-k{
  background:var(--card-bg);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh);transition:border-color .22s ease,box-shadow .22s ease,transform .22s ease;
  height:100%;display:flex;flex-direction:column;
}
.card-k:hover{border-color:var(--primary-line);box-shadow:var(--sh-hover);transform:translateY(-2px);}
.card-k .ratio-box{position:relative;border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/10;background:var(--primary-soft);margin-bottom:20px;}
.card-k .ratio-box img{width:100%;height:100%;object-fit:cover;}
.card-k h3{font-size:18px;line-height:1.5;font-weight:600;margin-bottom:10px;}
.card-k p{font-size:14px;color:var(--text-2);line-height:1.8;}
.card-k .card-foot{margin-top:auto;padding-top:18px;}

/* 服务方向网格 */
.dir-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
@media (max-width:991.98px){.dir-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:575.98px){.dir-grid{grid-template-columns:1fr;}}
.dir-card{
  border:1px solid var(--line);border-radius:var(--r-card);background:#fff;overflow:hidden;
  display:flex;flex-direction:column;transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.dir-card:hover{border-color:var(--primary-line);transform:translateY(-2px);box-shadow:var(--sh-hover);}
.dir-card .ratio-box{aspect-ratio:16/10;overflow:hidden;background:var(--primary-soft);}
.dir-card .ratio-box img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.dir-card:hover .ratio-box img{transform:scale(1.03);}
.dir-body{padding:24px 26px 28px;display:flex;flex-direction:column;flex:1;}
.dir-body h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.dir-body p{font-size:14px;color:var(--text-2);line-height:1.8;}
.dir-list{margin-top:16px;display:flex;flex-direction:column;gap:8px;}
.dir-list li{font-size:14px;color:var(--text-2);display:flex;gap:10px;align-items:flex-start;}
.dir-list li::before{content:"";width:6px;height:6px;background:var(--primary);margin-top:9px;flex:0 0 6px;border-radius:2px;}
.dir-body .card-foot{margin-top:auto;padding-top:20px;}

/* 参数条 */
.spec-bar{
  display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:var(--r-card);
  background:#fff;overflow:hidden;
}
.spec-cell{padding:28px 32px;border-right:1px solid var(--line);}
.spec-cell:last-child{border-right:0;}
.spec-label{font-size:14px;color:var(--text-3);}
.spec-value{font-family:var(--font-num);font-size:22px;font-weight:700;color:var(--primary);margin-top:8px;letter-spacing:.4px;}
.spec-foot{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:20px;flex-wrap:wrap;}
.spec-foot p{font-size:14px;color:var(--text-2);}
@media (max-width:991.98px){
  .spec-bar{grid-template-columns:repeat(2,1fr);}
  .spec-cell{border-right:1px solid var(--line);border-bottom:1px solid var(--line);}
  .spec-cell:nth-child(2n){border-right:0;}
  .spec-cell:nth-child(n+3){border-bottom:0;}
}
@media (max-width:575.98px){
  .spec-cell{padding:20px;border-right:0;border-bottom:1px solid var(--line);}
  .spec-cell:nth-child(n+3){border-bottom:1px solid var(--line);}
  .spec-cell:last-child{border-bottom:0;}
}

/* 评价墙 */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.voice{display:flex;flex-direction:column;gap:16px;}
.voice-inner{
  border:1px solid var(--line);border-radius:var(--r-card);padding:26px;background:#fff;height:100%;
  display:flex;flex-direction:column;
}
.voice.alt .voice-inner{background:var(--muted-bg);border-color:transparent;}
.voice-top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--primary-soft);color:var(--primary-dark);display:grid;place-items:center;font-size:15px;font-weight:700;flex:0 0 40px;}
.voice-name{font-size:15px;font-weight:600;}
.stars{color:var(--accent);font-size:13px;letter-spacing:2px;}
.voice-text{font-size:15px;line-height:1.8;color:var(--text-2);}
.voice-src{margin-top:auto;padding-top:16px;font-size:13px;color:var(--text-3);}
@media (max-width:991.98px){.voice-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:575.98px){.voice-grid{grid-template-columns:1fr;}}

/* FAQ */
.faq-wrap{max-width:820px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:none;border:0;padding:22px 0 22px 14px;text-align:left;display:flex;
  align-items:center;justify-content:space-between;gap:20px;font-size:17px;font-weight:600;color:var(--text);
  cursor:pointer;position:relative;transition:color .2s ease;
}
.faq-q::before{content:"";position:absolute;left:0;top:22px;bottom:22px;width:2px;background:transparent;transition:background .2s ease;}
.faq-item.open .faq-q::before{background:var(--primary);}
.faq-item.open .faq-q{color:var(--primary-dark);}
.faq-ico{position:relative;width:12px;height:12px;flex:0 0 12px;}
.faq-ico::before,.faq-ico::after{content:"";position:absolute;background:var(--text-2);transition:transform .25s ease,opacity .25s ease;}
.faq-ico::before{left:0;top:5.2px;width:12px;height:1.6px;}
.faq-ico::after{left:5.2px;top:0;width:1.6px;height:12px;}
.faq-item.open .faq-ico::after{transform:scaleY(0);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 0 22px 14px;font-size:15px;line-height:1.85;color:var(--text-2);}
@media (max-width:575.98px){.faq-q{font-size:16px;padding:18px 0 18px 12px;}}

/* 最新信息 */
.news-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:48px;align-items:start;}
.news-feature{border:1px solid var(--line);border-radius:var(--r-card);background:#fff;overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease,transform .22s ease;}
.news-feature:hover{border-color:var(--primary-line);box-shadow:var(--sh-hover);transform:translateY(-2px);}
.news-feature .ratio-box{aspect-ratio:16/10;overflow:hidden;background:var(--primary-soft);}
.news-feature .ratio-box img{width:100%;height:100%;object-fit:cover;}
.news-feature .nf-body{padding:26px 28px 28px;}
.news-feature h3{font-size:20px;line-height:1.5;font-weight:600;margin:14px 0 12px;}
.news-feature h3 a{color:var(--text);}
.news-feature h3 a:hover{color:var(--primary);}
.news-feature p{font-size:14px;color:var(--text-2);line-height:1.85;}
.nf-meta{display:flex;align-items:center;gap:14px;margin-top:18px;flex-wrap:wrap;}
.news-list{border-top:1px solid var(--line);}
.news-row{display:grid;grid-template-columns:96px 1fr;gap:20px;padding:20px 0;border-bottom:1px solid var(--line);align-items:start;}
.news-row .n-time{font-family:var(--font-num);font-size:13px;color:var(--text-3);padding-top:3px;}
.news-row .n-title{font-size:16px;line-height:1.6;}
.news-row .n-title a{color:var(--text);}
.news-row .n-title a:hover{color:var(--primary);}
.news-row .n-cat{display:block;margin-top:6px;font-size:13px;color:var(--text-3);}
.empty-state{
  min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  text-align:center;border:1px dashed var(--line);border-radius:var(--r-card);background:#fff;padding:32px;
}
.empty-ico{width:48px;height:48px;border-radius:50%;background:var(--primary-soft);display:grid;place-items:center;}
.empty-state p{font-size:15px;color:var(--text-2);}
@media (max-width:991.98px){
  .news-grid{grid-template-columns:1fr;gap:32px;}
}
@media (max-width:575.98px){
  .news-row{grid-template-columns:1fr;gap:6px;}
}

/* 深色 CTA */
.cta-dark{
  position:relative;background:var(--dark);border-radius:20px;padding:56px;color:var(--inv);overflow:hidden;
}
.cta-dark::after{
  content:"";position:absolute;right:-80px;top:-60px;width:320px;height:320px;border:1px solid rgba(242,246,244,.10);
  border-radius:50%;pointer-events:none;
}
.cta-dark::before{
  content:"";position:absolute;right:-40px;top:-20px;width:220px;height:220px;border:1px solid rgba(242,246,244,.08);
  border-radius:50%;pointer-events:none;
}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:center;}
.cta-dark h2{color:#fff;font-size:30px;line-height:1.35;}
.cta-dark p{color:rgba(242,246,244,.72);font-size:15px;margin-top:14px;max-width:560px;}
.cta-right{display:flex;align-items:center;gap:24px;justify-content:flex-end;flex-wrap:wrap;}
.cta-actions{display:flex;flex-direction:column;gap:14px;}
.cta-dark .qr-box{border-color:rgba(242,246,244,.2);background:#fff;}
.cta-note{position:relative;z-index:2;margin-top:32px;padding-top:20px;border-top:1px solid rgba(242,246,244,.14);font-size:13px;color:rgba(242,246,244,.55);}
@media (max-width:991.98px){
  .cta-dark{padding:36px 26px;border-radius:16px;}
  .cta-grid{grid-template-columns:1fr;gap:28px;}
  .cta-right{justify-content:flex-start;}
  .cta-dark h2{font-size:24px;}
}

/* 页脚 */
.site-footer{background:var(--dark);color:var(--inv);margin-top:96px;padding:72px 0 40px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:48px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand-mark{background:transparent;border-color:rgba(242,246,244,.24);}
.footer-brand .brand-cn{color:#fff;}
.footer-brand .brand-lat{color:rgba(242,246,244,.5);}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(242,246,244,.66);max-width:320px;}
.footer-key{margin-top:16px;font-size:13px;color:rgba(242,246,244,.45);}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col a{display:block;font-size:14px;line-height:2;color:rgba(242,246,244,.66);}
.footer-col a:hover{color:#8FD3C7;}
.footer-col p{font-size:14px;line-height:2;color:rgba(242,246,244,.66);}
.footer-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid rgba(242,246,244,.12);
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:13px;color:rgba(242,246,244,.5);
}
.footer-bottom a{color:rgba(242,246,244,.6);}
.footer-bottom a:hover{color:#8FD3C7;}
@media (max-width:991.98px){
  .site-footer{padding:56px 0 32px;margin-top:64px;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;}
}

/* roulang page: article */
:root{
  --c-primary:#157A6E;
  --c-primary-dark:#0F5A51;
  --c-primary-soft:#E6F2EF;
  --c-primary-line:rgba(21,122,110,.24);
  --c-accent:#D9722F;
  --c-bg:#F7F8F6;
  --c-card:#FFFFFF;
  --c-sub:#EFF3F1;
  --c-dark:#10201C;
  --c-text:#16201D;
  --c-text-2:#55615D;
  --c-text-3:#8B9591;
  --c-line:#E3E8E5;
  --c-line-input:#DCE3E0;
  --c-hover:#F1F6F4;
  --c-invert:#F2F6F4;
  --r-btn:10px;
  --r-card:14px;
  --r-img:12px;
  --r-badge:6px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,32,28,.05);
  --sh-2:0 8px 22px rgba(12,32,28,.09);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:Inter,"SF Pro Text",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --bs-primary:#157A6E;
  --bs-primary-rgb:21,122,110;
  --bs-body-color:#16201D;
  --bs-border-color:#E3E8E5;
  --bs-border-radius:10px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-dark);}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;}
:focus-visible{outline:3px solid var(--c-primary-soft);outline-offset:2px;border-radius:4px;}
.container-nav{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.container-main{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1440px){.container-main{max-width:1280px;}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,248,246,.96);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.nav-bar{display:flex;align-items:center;justify-content:space-between;height:76px;gap:24px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--c-text);}
.brand:hover{color:var(--c-text);}
.brand-mark{width:38px;height:38px;border:1px solid var(--c-primary-line);border-radius:var(--r-img);display:flex;align-items:center;justify-content:center;background:var(--c-card);flex:0 0 auto;}
.brand-mark svg{width:24px;height:24px;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-cn{font-size:17px;font-weight:700;letter-spacing:.02em;}
.brand-lat{font-family:var(--font-num);font-size:10px;letter-spacing:.22em;color:var(--c-text-3);margin-top:3px;}
.nav-links{display:flex;align-items:center;gap:32px;}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--c-text-2);padding:6px 0;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--c-primary);
  transition:width .25s ease;
}
.nav-links a:hover{color:var(--c-primary);}
.nav-links a:hover::after{width:100%;}
.nav-links a.active{color:var(--c-primary);}
.nav-links a.active::after{width:100%;}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 18px;
  background:var(--c-primary);color:#fff;border-radius:var(--r-pill);font-size:14px;font-weight:500;
  white-space:nowrap;transition:background .2s ease,transform .2s ease;
}
.nav-cta:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);}
.nav-toggle{
  display:none;width:40px;height:40px;background:none;border:0;padding:10px 8px;
  flex-direction:column;justify-content:space-between;
}
.nav-toggle span{display:block;height:1px;background:var(--c-text);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(9px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-9px) rotate(-45deg);}
.nav-drawer{display:none;background:var(--c-bg);border-top:1px solid var(--c-line);padding:8px 24px 32px;}
.nav-drawer.is-open{display:block;}
.d-link{
  display:block;font-size:18px;color:var(--c-text);padding:16px 0;border-bottom:1px solid var(--c-line);
}
.d-link:hover,.d-link.active{color:var(--c-primary);}
.drawer-foot{padding-top:24px;display:flex;flex-direction:column;gap:14px;align-items:flex-start;}
.drawer-note{font-size:13px;color:var(--c-text-3);}

/* ---------- 通用组件 ---------- */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;font-size:15px;font-weight:500;border-radius:var(--r-btn);
  background:var(--c-primary);color:#fff;border:1px solid var(--c-primary);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-main:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);color:#fff;transform:translateY(-1px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;font-size:15px;font-weight:500;border-radius:var(--r-btn);
  background:transparent;color:var(--c-primary);border:1px solid var(--c-primary-line);
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:var(--c-primary);color:var(--c-primary-dark);transform:translateY(-1px);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:500;color:var(--c-primary);}
.link-arrow svg{width:16px;height:16px;transition:transform .2s ease;}
.link-arrow:hover svg{transform:translateX(3px);}
.badge-cat{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:var(--r-badge);
  background:var(--c-primary-soft);color:var(--c-primary);font-size:12px;line-height:1.6;font-weight:500;
}
.tag-pill{
  display:inline-flex;align-items:center;padding:7px 16px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:var(--c-card);color:var(--c-text-2);font-size:13px;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.tag-pill:hover{border-color:var(--c-primary-line);color:var(--c-primary);background:var(--c-hover);}
.card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.card:hover{border-color:var(--c-primary-line);box-shadow:var(--sh-2);transform:translateY(-2px);}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);}
.crumbs a{color:var(--c-text-3);}
.crumbs a:hover{color:var(--c-primary);}
.crumbs .sep{color:#C6CFCB;}
.section-title{display:flex;align-items:center;gap:12px;font-size:22px;font-weight:700;line-height:1.4;}
.section-title::before{content:"";width:4px;height:20px;background:var(--c-primary);border-radius:2px;}

/* ---------- 文章页布局 ---------- */
.article-hero{padding:40px 0 0;}
.article-shell{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:56px;padding:32px 0 88px;}
.article-main{min-width:0;max-width:760px;}
.article-header{padding-bottom:28px;border-bottom:1px solid var(--c-line);}
.article-header h1{
  font-size:44px;line-height:1.25;font-weight:700;letter-spacing:0;
  margin:16px 0 18px;word-break:break-word;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--c-text-3);}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:#C6CFCB;display:inline-block;}
.article-lede{
  margin-top:20px;padding:18px 22px;background:var(--c-primary-soft);border-left:3px solid var(--c-primary);
  border-radius:0 var(--r-badge) var(--r-badge) 0;color:var(--c-text-2);font-size:15px;line-height:1.9;
}
.article-body{font-size:17px;line-height:1.9;color:var(--c-text);}
.article-body > * + *{margin-top:1.2em;}
.article-body p{margin-top:1.2em;}
.article-body h2{
  position:relative;font-size:26px;line-height:1.4;font-weight:700;color:var(--c-text);
  margin-top:2em;padding-left:16px;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.22em;width:4px;height:1em;background:var(--c-primary);border-radius:2px;}
.article-body h3{font-size:20px;line-height:1.5;font-weight:600;margin-top:1.6em;}
.article-body h4{font-size:17px;font-weight:600;margin-top:1.4em;}
.article-body a{color:var(--c-primary);border-bottom:1px solid var(--c-primary-line);}
.article-body a:hover{color:var(--c-primary-dark);border-bottom-color:var(--c-primary);}
.article-body strong{font-weight:600;}
.article-body ul,.article-body ol{margin-top:1em;padding-left:0;}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;margin-top:.6em;color:var(--c-text-2);}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;background:var(--c-primary-soft);border:1px solid var(--c-primary);border-radius:2px;}
.article-body ol{counter-reset:artnum;}
.article-body ol li{counter-increment:artnum;}
.article-body ol li::before{
  content:counter(artnum);position:absolute;left:0;top:.45em;color:var(--c-primary);
  font-family:var(--font-num);font-size:13px;font-weight:600;
}
.article-body blockquote{
  background:var(--c-primary-soft);border-left:3px solid var(--c-primary);
  border-radius:0 var(--r-badge) var(--r-badge) 0;padding:18px 22px;color:var(--c-text-2);font-size:16px;
}
.article-body blockquote p{margin:0;}
.article-body img{border-radius:var(--r-img);margin:1.6em auto;height:auto;}
.article-body figure{margin:1.8em 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--c-text-3);margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;font-size:14px;background:var(--c-card);}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:12px 14px;text-align:left;vertical-align:top;}
.article-body th{background:var(--c-sub);font-weight:600;color:var(--c-text);}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:2.4em 0;}
.article-body code{
  font-family:var(--font-num);font-size:14px;background:var(--c-sub);
  padding:2px 6px;border-radius:4px;color:var(--c-primary-dark);
}
.table-scroll{overflow-x:auto;margin-top:1.4em;-webkit-overflow-scrolling:touch;}

.empty-state{
  min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:16px;text-align:center;padding:48px 24px;border:1px dashed var(--c-line);
  border-radius:var(--r-card);background:var(--c-card);margin-top:32px;
}
.empty-icon{
  width:48px;height:48px;border-radius:50%;background:var(--c-primary-soft);
  display:flex;align-items:center;justify-content:center;color:var(--c-primary);
}
.empty-icon svg{width:24px;height:24px;}
.empty-state p{font-size:15px;color:var(--c-text-2);}

/* 文章尾部 */
.article-foot{margin-top:56px;padding-top:32px;border-top:1px solid var(--c-line);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.share-row{display:flex;align-items:center;gap:22px;margin-top:24px;padding:18px 0;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.share-row span{font-size:13px;color:var(--c-text-3);}
.share-btn{
  display:inline-flex;align-items:center;gap:7px;background:none;border:0;padding:0;
  font-size:14px;color:var(--c-text-2);
}
.share-btn svg{width:17px;height:17px;stroke:currentColor;}
.share-btn:hover{color:var(--c-primary);}
.duo-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px;}
.duo-card{
  display:block;padding:22px 24px;background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-card);transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.duo-card:hover{border-color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--sh-1);}
.duo-card em{display:block;font-style:normal;font-size:12px;color:var(--c-text-3);letter-spacing:.08em;margin-bottom:8px;}
.duo-card strong{display:block;font-size:17px;font-weight:600;color:var(--c-text);line-height:1.5;}
.duo-card p{margin-top:8px;font-size:14px;color:var(--c-text-2);line-height:1.75;}
.duo-card:hover strong{color:var(--c-primary);}

.related-block{margin-top:48px;}
.related-list{margin-top:20px;border-top:1px solid var(--c-line);}
.related-item{
  display:grid;grid-template-columns:96px minmax(0,1fr);gap:18px;align-items:center;
  padding:18px 0;border-bottom:1px solid var(--c-line);
}
.related-item:hover .related-title{color:var(--c-primary);}
.related-thumb{
  width:96px;aspect-ratio:16/10;border-radius:var(--r-img);overflow:hidden;background:var(--c-primary-soft);
}
.related-thumb img{width:100%;height:100%;object-fit:cover;}
.related-title{font-size:16px;font-weight:600;color:var(--c-text);line-height:1.6;transition:color .2s ease;}
.related-desc{font-size:14px;color:var(--c-text-2);margin-top:6px;line-height:1.7;}
.related-time{font-size:13px;color:var(--c-text-3);font-family:var(--font-num);margin-top:6px;display:block;}
.back-cat{margin-top:32px;}

/* 侧栏 */
.article-side{display:flex;flex-direction:column;gap:24px;}
.side-card{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);}
.side-title{font-size:15px;font-weight:600;color:var(--c-text);margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-title::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary);}
.side-author{display:flex;align-items:center;gap:12px;}
.avatar{width:44px;height:44px;border-radius:50%;background:var(--c-primary-soft);display:flex;align-items:center;justify-content:center;color:var(--c-primary);font-weight:700;font-size:16px;flex:0 0 auto;}
.side-author strong{display:block;font-size:15px;font-weight:600;}
.side-author span{font-size:13px;color:var(--c-text-3);}
.side-note{margin-top:14px;font-size:14px;color:var(--c-text-2);line-height:1.8;}
.side-list a{
  display:block;font-size:15px;color:var(--c-text-2);padding:12px 0;border-bottom:1px solid var(--c-line);
  line-height:1.65;
}
.side-list a:last-child{border-bottom:0;}
.side-list a:hover{color:var(--c-primary);}
.side-list em{display:block;font-style:normal;font-size:12px;color:var(--c-text-3);font-family:var(--font-num);margin-top:4px;}
.form-item{margin-bottom:14px;}
.form-item label{display:block;font-size:13px;font-weight:500;color:var(--c-text-2);margin-bottom:8px;}
.form-item input{
  width:100%;height:48px;padding:0 14px;font-size:15px;background:var(--c-card);
  border:1px solid var(--c-line-input);border-radius:var(--r-btn);transition:border-color .2s ease,box-shadow .2s ease;
}
.form-item input::placeholder{color:var(--c-text-3);}
.form-item input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-primary-soft);}
.form-submit{
  width:100%;height:48px;border:1px solid var(--c-primary);border-radius:var(--r-btn);
  background:var(--c-primary);color:#fff;font-size:15px;font-weight:500;transition:background .2s ease,transform .2s ease;
}
.form-submit:hover{background:var(--c-primary-dark);transform:translateY(-1px);}
.form-tip{margin-top:12px;font-size:12px;color:var(--c-text-3);line-height:1.7;}
.form-error{display:none;font-size:13px;color:#B4432F;margin-top:6px;}

/* CTA 条 */
.cta-strip{
  margin:0 0 88px;background:var(--c-sub);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:32px 36px;display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-strip h2{font-size:22px;font-weight:700;line-height:1.45;}
.cta-strip p{margin-top:8px;font-size:15px;color:var(--c-text-2);}
.cta-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:var(--c-invert);border-top:1px solid var(--c-line);padding:72px 0 40px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.site-footer .brand-cn{color:#fff;}
.site-footer .brand-lat{color:#8FD3C7;}
.site-footer .brand-mark{background:transparent;border-color:rgba(143,211,199,.32);}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(242,246,244,.72);}
.footer-key{margin-top:14px;font-size:13px;color:#8FD3C7;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;}
.footer-col a{display:block;font-size:14px;line-height:2;color:rgba(242,246,244,.72);}
.footer-col a:hover{color:#8FD3C7;}
.footer-col p{font-size:14px;line-height:2;color:rgba(242,246,244,.72);}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(242,246,244,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(242,246,244,.55);
}
.footer-bottom a{color:rgba(242,246,244,.72);}
.footer-bottom a:hover{color:#8FD3C7;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .article-shell{grid-template-columns:minmax(0,1fr);gap:40px;}
  .article-main{max-width:820px;}
  .article-side{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start;}
}
@media (max-width:991.98px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .nav-bar{height:64px;}
  .nav-cta{display:none;}
  .article-hero{padding-top:28px;}
  .article-header h1{font-size:34px;}
  .article-body h2{font-size:23px;}
  .article-shell{padding-bottom:64px;}
  .cta-strip{flex-direction:column;align-items:flex-start;padding:28px 24px;margin-bottom:64px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  .article-side{grid-template-columns:1fr;}
  .duo-grid{grid-template-columns:1fr;}
  .cta-actions{width:100%;flex-direction:column;align-items:stretch;}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%;}
}
@media (max-width:575.98px){
  body{font-size:15px;}
  .container-nav,.container-main{padding:0 20px;}
  .article-header h1{font-size:28px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:21px;padding-left:14px;}
  .article-body h3{font-size:18px;}
  .article-lede{padding:16px 18px;font-size:14px;}
  .side-card{padding:20px;}
  .article-foot{margin-top:40px;}
  .related-item{grid-template-columns:76px minmax(0,1fr);gap:14px;}
  .related-thumb{width:76px;}
  .site-footer{padding:48px 0 32px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .btn-main,.btn-ghost{width:100%;}
  .share-row{gap:16px;flex-wrap:wrap;}
}

/* roulang page: category1 */
:root{
  --brand:#157A6E;
  --brand-deep:#0F5A51;
  --brand-soft:#E6F2EF;
  --brand-line:rgba(21,122,110,.24);
  --accent:#D9722F;
  --bg:#F7F8F6;
  --card:#FFFFFF;
  --sub:#EFF3F1;
  --dark:#10201C;
  --text:#16201D;
  --text-2:#55615D;
  --text-3:#8B9591;
  --inv:#F2F6F4;
  --line:#E3E8E5;
  --hover:#F1F6F4;
  --ok:#2F8F6B;
  --warn:#C98A1E;
  --err:#B4432F;
  --r-btn:10px;
  --r-card:14px;
  --r-img:12px;
  --r-badge:6px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,32,28,.05);
  --sh-2:0 8px 22px rgba(12,32,28,.09);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:"Inter","SF Pro Display",-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .22s ease,border-color .22s ease,background-color .22s ease}
a:hover{color:var(--brand-deep)}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700}
h1{font-size:44px;line-height:1.25;font-weight:700}
h2{font-size:30px;line-height:1.35}
h3{font-size:20px;line-height:1.5;font-weight:600}
p{margin:0 0 1.1em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
::selection{background:var(--brand-soft);color:var(--brand-deep)}

/* ---------- 布局容器 ---------- */
.container-nav{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.container-main{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container-main{max-width:1280px}}
.section{padding:96px 0}
.section-sm{padding:64px 0}
@media (max-width:991.98px){.section{padding:64px 0}.section-sm{padding:48px 0}}
@media (max-width:575.98px){.section{padding:48px 0}.section-sm{padding:40px 0}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,248,246,.94);
  backdrop-filter:saturate(1.4) blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.nav-bar{display:flex;align-items:center;justify-content:space-between;height:76px;gap:var(--sp-5)}
.brand{display:flex;align-items:center;gap:10px;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;border:1px solid var(--brand-line);border-radius:var(--r-badge);background:#fff}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-cn{font-size:17px;font-weight:700;letter-spacing:.02em}
.brand-lat{font-family:var(--font-num);font-size:10px;letter-spacing:.28em;color:var(--text-3);margin-top:3px}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--brand);
  transition:width .25s ease;
}
.nav-links a:hover{color:var(--brand)}
.nav-links a:hover::after{width:100%}
.nav-links a.active{color:var(--brand)}
.nav-links a.active::after{width:100%}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 20px;
  border-radius:var(--r-pill);background:var(--brand);color:#fff;font-size:14px;font-weight:600;
  transition:background-color .22s ease,transform .22s ease;
}
.nav-cta:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px)}
.nav-cta:focus-visible{outline:none;box-shadow:0 0 0 3px var(--brand-soft)}
.nav-toggle{
  display:none;width:44px;height:44px;border:0;background:transparent;padding:10px;cursor:pointer;
  flex-direction:column;justify-content:space-between;
}
.nav-toggle span{display:block;height:1.5px;background:var(--text);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.nav-toggle:focus-visible{outline:none;box-shadow:0 0 0 3px var(--brand-soft);border-radius:var(--r-badge)}
.nav-drawer{display:none}
@media (max-width:991.98px){
  .nav-bar{height:64px}
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:flex}
  .nav-drawer{
    display:block;position:fixed;left:0;right:0;top:64px;bottom:0;background:var(--bg);
    padding:16px 24px 32px;overflow-y:auto;transform:translateY(-8px);opacity:0;visibility:hidden;
    transition:opacity .22s ease,transform .22s ease,visibility .22s;border-top:1px solid var(--line);
  }
  .nav-drawer.open{transform:none;opacity:1;visibility:visible}
  .nav-drawer .d-link{
    display:block;font-size:18px;line-height:56px;color:var(--text);border-bottom:1px solid var(--line);
  }
  .nav-drawer .d-link.active{color:var(--brand);font-weight:600}
  .drawer-foot{margin-top:24px;display:flex;flex-direction:column;gap:12px;align-items:flex-start}
  .nav-drawer .nav-cta{display:inline-flex;padding:0 24px}
  .drawer-note{font-size:13px;color:var(--text-3);margin:0}
}

/* ---------- 面包屑 ---------- */
.crumb{font-size:13px;color:var(--text-3);margin-bottom:16px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:#C6CFCB}
.crumb .cur{color:var(--text-2)}

/* ---------- 页面头 ---------- */
.page-head{
  position:relative;overflow:hidden;border-bottom:1px solid var(--line);
  background:
    linear-gradient(180deg,rgba(21,122,110,.06),rgba(247,248,246,0) 70%),
    url("/assets/images/backpic/back-2.webp") right center/720px auto no-repeat,
    var(--bg);
}
.page-head .container-main{position:relative;z-index:1;padding-top:56px;padding-bottom:56px}
.page-head-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:48px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;background:var(--brand-soft);color:var(--brand-deep);
  border-radius:var(--r-badge);padding:5px 12px;font-size:12px;font-weight:600;letter-spacing:.04em;margin-bottom:20px;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--brand);display:block}
.page-head h1{margin-bottom:16px}
.page-lead{font-size:17px;color:var(--text-2);max-width:560px;margin-bottom:24px}
.head-meta{display:flex;flex-wrap:wrap;gap:8px}
.pill{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;font-size:13px;color:var(--text-2)}
.head-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:22px;display:flex;flex-direction:column;gap:14px;
}
.head-card .hc-top{display:flex;gap:16px;align-items:flex-start}
.hc-thumb{width:132px;flex:0 0 132px;aspect-ratio:16/10;border-radius:var(--r-img);overflow:hidden;background:var(--brand-soft)}
.hc-thumb img{width:100%;height:100%;object-fit:cover}
.hc-title{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:6px}
.hc-desc{font-size:14px;color:var(--text-2);line-height:1.7;margin:0}
.hc-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;border-top:1px solid var(--line);padding-top:14px}
.hc-facts div span{display:block;font-size:13px;color:var(--text-3);margin-bottom:2px}
.hc-facts div b{font-family:var(--font-num);font-size:17px;color:var(--brand);font-weight:600}
@media (max-width:991.98px){
  .page-head{background-size:0 auto}
  .page-head-grid{grid-template-columns:1fr;gap:32px}
  .page-head .container-main{padding-top:40px;padding-bottom:40px}
}
@media (max-width:575.98px){
  h1{font-size:30px}
  h2{font-size:23px}
  .hc-thumb{width:96px;flex-basis:96px}
  .hc-facts{grid-template-columns:1fr 1fr}
}

/* ---------- 锚点栏 + 长内容 ---------- */
.layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:56px;align-items:start}
.anchor-side{position:sticky;top:104px;display:flex;flex-direction:column;gap:2px}
.anchor-side .as-title{font-size:13px;color:var(--text-3);letter-spacing:.1em;margin-bottom:10px}
.anchor-side a{
  position:relative;display:block;font-size:14px;color:var(--text-2);padding:9px 0 9px 14px;border-left:2px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.anchor-side a:hover{color:var(--brand)}
.anchor-side a.active{color:var(--brand);border-left-color:var(--brand);font-weight:600}
.flow{display:flex;flex-direction:column;gap:72px}
.block{scroll-margin-top:104px}
.block-head{margin-bottom:26px}
.block-head .kicker{font-size:13px;color:var(--brand);letter-spacing:.1em;font-weight:600;margin-bottom:8px}
.block-head h2{position:relative;padding-left:14px;margin-bottom:10px}
.block-head h2::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:2px;background:var(--brand)}
.block-head p{color:var(--text-2);max-width:720px;margin:0}
@media (max-width:991.98px){
  .layout{grid-template-columns:1fr;gap:40px}
  .anchor-side{position:static;flex-direction:row;flex-wrap:wrap;gap:8px;padding-bottom:16px;border-bottom:1px solid var(--line)}
  .anchor-side .as-title{display:none}
  .anchor-side a{border:1px solid var(--line);border-radius:var(--r-pill);padding:6px 14px;background:#fff}
  .anchor-side a.active{border-color:var(--brand);background:var(--brand-soft)}
  .flow{gap:56px}
}

/* ---------- 图文交替 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.split .txt h3{margin-bottom:14px}
.split .txt p{color:var(--text-2);margin-bottom:14px}
.split .media{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);aspect-ratio:16/10;background:var(--brand-soft)}
.split .media img{width:100%;height:100%;object-fit:cover}
.split.reverse .media{order:1}
.split.reverse .txt{order:2}
.mini-list{display:flex;flex-direction:column;gap:10px;margin-top:6px}
.mini-list li{display:flex;gap:10px;font-size:15px;color:var(--text-2);align-items:flex-start}
.mini-list li::before{content:"";width:6px;height:6px;background:var(--brand);border-radius:2px;margin-top:9px;flex:0 0 6px}
@media (max-width:991.98px){
  .split{grid-template-columns:1fr;gap:24px}
  .split.reverse .media{order:0}
  .split.reverse .txt{order:0}
}

/* ---------- 数据条 ---------- */
.data-bar{
  display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
}
.data-bar .cell{padding:26px 28px;border-left:1px solid var(--line)}
.data-bar .cell:first-child{border-left:0}
.data-bar .cell .lbl{font-size:14px;color:var(--text-3);margin-bottom:8px}
.data-bar .cell .val{font-family:var(--font-num);font-size:26px;font-weight:600;color:var(--brand);line-height:1.2}
.data-bar .cell .val em{font-style:normal;font-size:15px;color:var(--text-2);margin-left:4px;font-family:var(--font-cn)}
.data-note{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;margin-top:16px;font-size:14px;color:var(--text-3)}
@media (max-width:767.98px){
  .data-bar{grid-template-columns:1fr 1fr}
  .data-bar .cell{border-left:0;border-top:1px solid var(--line);padding:20px}
  .data-bar .cell:nth-child(1),.data-bar .cell:nth-child(2){border-top:0}
  .data-bar .cell:nth-child(even){border-left:1px solid var(--line)}
}

/* ---------- 清单卡 ---------- */
.list-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.list-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px;
  box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.list-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand-line)}
.list-card .lc-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.list-card h3{font-size:18px}
.badge{display:inline-block;background:var(--brand-soft);color:var(--brand-deep);border-radius:var(--r-badge);font-size:12px;padding:4px 10px;font-weight:600}
.list-card ul{display:flex;flex-direction:column;gap:9px}
.list-card ul li{font-size:14px;color:var(--text-2);display:flex;gap:10px;line-height:1.75}
.list-card ul li::before{content:"—";color:var(--brand);flex:0 0 auto}
@media (max-width:767.98px){.list-cards{grid-template-columns:1fr}}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;padding-left:32px}
.timeline::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:1px;background:var(--line)}
.tl-item{position:relative;padding-bottom:32px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-32px;top:8px;width:15px;height:15px;border-radius:50%;
  background:#fff;border:2px solid var(--brand-line);
}
.tl-item.on::before{border-color:var(--brand);background:var(--brand)}
.tl-item h3{font-size:18px;margin-bottom:8px}
.tl-item p{color:var(--text-2);margin:0;max-width:660px;font-size:15px}
.tl-item .step{font-family:var(--font-num);font-size:12px;color:var(--accent);letter-spacing:.12em;font-weight:600;display:block;margin-bottom:6px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;display:flex;align-items:flex-start;gap:16px;
  padding:20px 40px 20px 0;font-size:17px;font-weight:600;color:var(--text);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:2px;background:var(--brand);
  transform:scaleY(0);transform-origin:top;transition:transform .2s ease;border-radius:2px;
}
.faq-item[open] summary::before{transform:scaleY(1)}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary .ico{
  position:absolute;right:0;top:22px;width:14px;height:14px;flex:0 0 14px;
}
.faq-item summary .ico::before,
.faq-item summary .ico::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-item summary .ico::before{left:0;top:6px;width:14px;height:2px}
.faq-item summary .ico::after{left:6px;top:0;width:2px;height:14px;transition:transform .2s ease,opacity .2s ease}
.faq-item[open] summary .ico::after{transform:scaleY(0);opacity:0}
.faq-item .faq-body{padding:0 40px 22px 0;font-size:15px;color:var(--text-2);line-height:1.85}

/* ---------- CTA 条 ---------- */
.cta-bar{
  background:var(--sub);border:1px solid var(--line);border-radius:var(--r-card);
  padding:36px 40px;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
}
.cta-bar h3{font-size:22px;margin-bottom:6px}
.cta-bar p{margin:0;color:var(--text-2);font-size:15px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
@media (max-width:575.98px){.cta-bar{padding:24px 20px}.cta-bar .btn-primary,.cta-bar .btn-ghost{width:100%;justify-content:center}}

/* ---------- 按钮 ---------- */
.btn-primary,.btn-ghost,.link-more{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;
  border-radius:var(--r-btn);cursor:pointer;transition:background-color .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--brand);color:#fff;border:1px solid var(--brand);padding:14px 28px}
.btn-primary:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff;transform:translateY(-1px)}
.btn-primary:focus-visible{outline:none;box-shadow:0 0 0 3px var(--brand-soft)}
.btn-ghost{background:transparent;color:var(--brand);border:1px solid var(--brand-line);padding:13px 26px}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);border-color:var(--brand-line)}
.btn-ghost:focus-visible{outline:none;box-shadow:0 0 0 3px var(--brand-soft)}
.link-more{background:none;border:0;padding:0;color:var(--brand);gap:6px}
.link-more svg{width:16px;height:16px;transition:transform .22s ease}
.link-more:hover svg{transform:translateX(3px)}
.link-more:focus-visible{outline:none;box-shadow:0 0 0 3px var(--brand-soft);border-radius:var(--r-badge)}

/* ---------- 表单 ---------- */
.form-row{display:flex;flex-direction:column;gap:6px}
.form-row label{font-size:13px;font-weight:500;color:var(--text-2)}
.form-control-x{
  height:48px;padding:0 14px;font-size:15px;color:var(--text);background:#fff;
  border:1px solid #DCE3E0;border-radius:var(--r-btn);width:100%;transition:border-color .2s ease,box-shadow .2s ease;
}
.form-control-x::placeholder{color:var(--text-3)}
.form-control-x:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.help-strip{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:end}
@media (max-width:767.98px){.help-strip{grid-template-columns:1fr}}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid rgba(255,255,255,.08);background:var(--dark);color:var(--inv);margin-top:96px}
.site-footer .container-nav{padding-top:72px;padding-bottom:40px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-cn{color:var(--inv)}
.footer-brand .brand-lat{color:#7E8F8A}
.footer-brand .brand-mark{background:transparent;border-color:rgba(143,211,199,.3)}
.footer-desc{font-size:14px;color:#A9B7B2;line-height:1.9;margin-bottom:10px}
.footer-key{font-size:13px;color:#7E8F8A;margin:0}
.footer-col h4{font-size:14px;font-weight:600;color:var(--inv);margin-bottom:14px}
.footer-col a,.footer-col p{display:block;font-size:14px;line-height:2;color:#A9B7B2;margin:0}
.footer-col a:hover{color:#8FD3C7}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(255,255,255,.08);margin-top:48px;padding-top:20px;font-size:13px;color:#7E8F8A;
}
.footer-bottom a{color:#A9B7B2}
.footer-bottom a:hover{color:#8FD3C7}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer .container-nav{padding-top:48px;padding-bottom:32px}
}

/* roulang page: category2 */
:root{
  --c-primary:#157A6E;
  --c-primary-d:#0F5A51;
  --c-primary-l:#E6F2EF;
  --c-line-primary:rgba(21,122,110,.24);
  --c-accent:#D9722F;
  --bg:#F7F8F6;
  --card:#FFFFFF;
  --sub:#EFF3F1;
  --dark:#10201C;
  --t1:#16201D;
  --t2:#55615D;
  --t3:#8B9591;
  --t-inv:#F2F6F4;
  --line:#E3E8E5;
  --hover:#F1F6F4;
  --ok:#2F8F6B;
  --warn:#C98A1E;
  --err:#B4432F;
  --r-btn:10px;
  --r-card:14px;
  --r-img:12px;
  --r-badge:6px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,32,28,.05);
  --sh-2:0 8px 22px rgba(12,32,28,.09);
  --sp-1:8px;--sp-2:16px;--sp-3:24px;--sp-4:32px;--sp-5:48px;--sp-6:64px;--sp-7:96px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
  --font-num:"Inter","SF Pro Display",-apple-system,"Segoe UI",Arial,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--t1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--c-primary-d);}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--t1);font-weight:700;letter-spacing:0;}
h1{font-size:44px;line-height:1.25;}
h2{font-size:30px;line-height:1.35;}
h3{font-size:20px;line-height:1.5;font-weight:600;}
p{margin:0 0 1em;}
:focus-visible{outline:none;box-shadow:0 0 0 3px var(--c-primary-l),0 0 0 1px var(--c-primary);border-radius:8px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.container-nav{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
@media (min-width:1440px){.container{max-width:1280px;}}
.section{padding:var(--sp-7) 0;}
.section-tight{padding:var(--sp-6) 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-head h2{position:relative;padding-left:16px;}
.section-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;background:var(--c-primary);border-radius:2px;}
.section-sub{color:var(--t2);font-size:15px;margin:10px 0 0;padding-left:16px;max-width:640px;}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(247,248,246,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);transition:box-shadow .25s ease;}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.nav-bar{height:76px;display:flex;align-items:center;gap:24px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;}
.brand-mark svg{width:100%;height:100%;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-cn{font-size:17px;font-weight:700;color:var(--t1);letter-spacing:.5px;}
.brand-lat{font-family:var(--font-num);font-size:10px;letter-spacing:2.4px;color:var(--t3);margin-top:3px;}
.nav-links{display:flex;align-items:center;gap:32px;margin-left:auto;}
.nav-links a{position:relative;font-size:15px;font-weight:500;color:var(--t2);padding:6px 0;}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--c-primary);transition:width .25s ease;}
.nav-links a:hover{color:var(--c-primary);}
.nav-links a:hover::after{width:100%;}
.nav-links a.active{color:var(--c-primary);}
.nav-links a.active::after{width:100%;}
.nav-cta{display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 20px;border-radius:var(--r-pill);background:var(--c-primary);color:#fff;font-size:14px;font-weight:500;white-space:nowrap;transition:background .22s ease,transform .22s ease;}
.nav-cta:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-1px);}
.nav-toggle{display:none;width:40px;height:40px;border:0;background:transparent;flex-direction:column;justify-content:center;gap:5px;padding:0 6px;margin-left:auto;}
.nav-toggle span{display:block;height:1.6px;background:var(--t1);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.nav-toggle span:nth-child(2){width:70%;}
.nav-drawer{display:none;}
@media (max-width:991.98px){
  .nav-links{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .nav-bar{height:64px;}
  .nav-drawer{position:fixed;inset:64px 0 0 0;background:var(--bg);padding:8px 20px 40px;overflow-y:auto;z-index:999;}
  .nav-drawer.open{display:block;}
  .d-link{display:block;font-size:18px;color:var(--t1);line-height:56px;border-bottom:1px solid var(--line);}
  .d-link.active{color:var(--c-primary);border-bottom-color:var(--c-line-primary);}
  .drawer-foot{padding-top:28px;display:flex;flex-direction:column;gap:16px;}
  .drawer-foot .nav-cta{display:inline-flex;width:100%;height:48px;font-size:15px;}
  .drawer-note{font-size:13px;color:var(--t3);margin:0;}
}

/* ---------- 通用组件 ---------- */
.btn-c{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:500;padding:14px 28px;border-radius:var(--r-btn);border:1px solid transparent;cursor:pointer;transition:all .22s ease;}
.btn-solid{background:var(--c-primary);color:#fff;}
.btn-solid:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-line-primary);}
.btn-ghost:hover{background:var(--c-primary-l);color:var(--c-primary-d);}
.btn-inv{background:#fff;color:var(--dark);}
.btn-inv:hover{background:var(--c-primary-l);color:var(--c-primary-d);}
.btn-inv-ghost{background:transparent;color:var(--t-inv);border-color:rgba(255,255,255,.42);}
.btn-inv-ghost:hover{background:rgba(255,255,255,.1);color:#fff;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--c-primary);}
.link-arrow svg{width:16px;height:16px;transition:transform .22s ease;}
.link-arrow:hover svg{transform:translateX(3px);}
.badge-c{display:inline-flex;align-items:center;font-size:12px;line-height:1;padding:5px 10px;border-radius:var(--r-badge);background:var(--c-primary-l);color:var(--c-primary-d);font-weight:500;}
.meta-dot{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--t3);}
.meta-dot::before{content:"";width:4px;height:4px;background:var(--t3);border-radius:1px;}
.crumb{font-size:13px;color:var(--t3);margin-bottom:16px;}
.crumb a{color:var(--t3);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{margin:0 8px;color:#C7CFCB;}
.card-base{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;}
.card-base:hover{border-color:var(--c-line-primary);transform:translateY(-2px);box-shadow:var(--sh-2);}
.ratio-16-10{position:relative;width:100%;padding-top:62.5%;overflow:hidden;border-radius:var(--r-img);background:var(--c-primary-l);}
.ratio-16-10 img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}

/* ---------- 页面头 ---------- */
.page-hero{position:relative;padding:64px 0 0;overflow:hidden;}
.page-hero::before{content:"";position:absolute;left:0;right:0;top:0;height:340px;background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;opacity:.07;pointer-events:none;}
.page-hero-inner{position:relative;max-width:860px;}
.page-hero h1{margin-bottom:18px;}
.hero-lead{font-size:17px;line-height:1.9;color:var(--t2);max-width:720px;margin:0;}
.pill-tabs{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px;padding-bottom:8px;}
.pill{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:500;padding:9px 20px;border-radius:var(--r-pill);border:1px solid var(--c-line-primary);background:transparent;color:var(--c-primary);cursor:pointer;transition:all .22s ease;}
.pill:hover{background:var(--c-primary-l);}
.pill.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.pill .count{font-family:var(--font-num);font-size:12px;opacity:.72;}

/* ---------- 统计条 ---------- */
.stat-band{margin-top:48px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden;}
.stat-cell{padding:26px 24px;border-right:1px solid var(--line);}
.stat-cell:last-child{border-right:0;}
.stat-label{font-size:13px;color:var(--t3);margin-bottom:6px;}
.stat-value{font-family:var(--font-num);font-size:26px;font-weight:600;color:var(--c-primary);line-height:1.2;}
.stat-value em{font-style:normal;font-size:14px;color:var(--t2);margin-left:4px;font-family:var(--font-cn);}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.support-card{padding:22px;display:flex;flex-direction:column;position:relative;}
.support-card .cover-wrap{margin-bottom:20px;}
.card-badge{position:absolute;top:34px;right:34px;z-index:2;background:rgba(230,242,239,.94);backdrop-filter:blur(4px);}
.support-card h3{font-size:19px;margin-bottom:10px;}
.support-card .card-sum{font-size:14px;line-height:1.8;color:var(--t2);margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.point-list{list-style:none;margin:0 0 20px;padding:0;flex:1;}
.point-list li{position:relative;padding-left:14px;font-size:14px;line-height:1.9;color:var(--t2);}
.point-list li::before{content:"";position:absolute;left:0;top:11px;width:5px;height:5px;border-radius:1px;background:var(--c-primary);opacity:.72;}
.card-foot{border-top:1px solid var(--line);padding-top:16px;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.wide-card{grid-column:span 2;flex-direction:row;gap:28px;padding:28px;align-items:center;}
.wide-card .cover-wrap{width:46%;margin:0;flex-shrink:0;}
.wide-card .wide-body{flex:1;}
.wide-card h3{font-size:22px;margin-bottom:12px;}
.wide-card p{font-size:15px;color:var(--t2);line-height:1.85;}
.is-hidden{display:none !important;}

/* ---------- 高亮数据卡 ---------- */
.highlight-row{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:48px;}
.hl-card{padding:28px;display:flex;gap:22px;align-items:flex-start;}
.hl-num{font-family:var(--font-num);font-size:34px;font-weight:600;color:var(--c-accent);line-height:1;min-width:76px;}
.hl-card h3{font-size:18px;margin-bottom:8px;}
.hl-card p{font-size:14px;color:var(--t2);margin:0;line-height:1.85;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{width:100%;background:none;border:0;text-align:left;padding:22px 40px 22px 0;font-size:17px;font-weight:600;color:var(--t1);position:relative;cursor:pointer;transition:color .2s ease;}
.faq-q::before{content:"";position:absolute;left:-14px;top:22px;bottom:22px;width:2px;background:var(--c-primary);transform:scaleY(0);transform-origin:top;transition:transform .2s ease;}
.faq-q::after{content:"";position:absolute;right:6px;top:50%;width:12px;height:1.6px;background:var(--t2);transform:translateY(-50%);transition:transform .25s ease;}
.faq-item .faq-plus{position:absolute;right:11px;top:50%;width:1.6px;height:12px;background:var(--t2);transform:translateY(-50%);transition:opacity .25s ease;}
.faq-item.open .faq-q{color:var(--c-primary);}
.faq-item.open .faq-q::before{transform:scaleY(1);}
.faq-item.open .faq-plus{opacity:0;}
.faq-a{display:none;padding:0 40px 22px 0;font-size:15px;line-height:1.85;color:var(--t2);}
.faq-item.open .faq-a{display:block;margin-top:-6px;}

/* ---------- CTA ---------- */
.cta-bar{margin-top:72px;background:var(--c-primary-l);border:1px solid var(--c-line-primary);border-radius:var(--r-card);padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:32px;}
.cta-bar h2{font-size:24px;margin-bottom:8px;}
.cta-bar p{margin:0;font-size:15px;color:var(--t2);}
.cta-actions{display:flex;gap:14px;flex-shrink:0;}

/* ---------- 分页 ---------- */
.pager{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:56px;}
.pager a,.pager span{min-width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;font-family:var(--font-num);font-size:14px;border-radius:var(--r-btn);border:1px solid var(--line);background:var(--card);color:var(--t2);}
.pager a:hover{border-color:var(--c-line-primary);color:var(--c-primary);background:var(--hover);}
.pager .current{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}

/* ---------- 深色区块 ---------- */
.dark-band{background:var(--dark);border-radius:20px;padding:56px 48px;color:var(--t-inv);position:relative;overflow:hidden;}
.dark-band::after{content:"";position:absolute;right:-80px;top:-60px;width:340px;height:340px;border:1px solid rgba(143,211,199,.18);border-radius:50%;}
.dark-band::before{content:"";position:absolute;right:-10px;bottom:-120px;width:260px;height:260px;border:1px solid rgba(143,211,199,.12);border-radius:50%;}
.dark-band h2{color:#fff;font-size:28px;margin-bottom:12px;}
.dark-band p{color:rgba(242,246,244,.76);margin:0;font-size:15px;}
.dark-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;}
.dark-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.qr-box{width:88px;height:88px;border-radius:var(--r-img);background:rgba(255,255,255,.08);border:1px dashed rgba(255,255,255,.28);display:flex;align-items:center;justify-content:center;font-size:12px;color:rgba(242,246,244,.7);text-align:center;line-height:1.4;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:var(--t-inv);margin-top:96px;padding:72px 0 40px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:20px;}
.footer-brand .brand-cn{color:#fff;}
.footer-brand .brand-lat{color:rgba(143,211,199,.85);}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(242,246,244,.72);margin-bottom:12px;}
.footer-key{font-size:13px;color:rgba(143,211,199,.85);margin:0;}
.footer-col h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px;}
.footer-col a{display:block;font-size:14px;line-height:2;color:rgba(242,246,244,.72);}
.footer-col a:hover{color:#8FD3C7;}
.footer-col p{font-size:14px;line-height:2;color:rgba(242,246,244,.72);margin:0;}
.footer-bottom{margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(242,246,244,.55);}
.footer-bottom a{color:rgba(143,211,199,.85);}
.footer-bottom a:hover{color:#fff;}

@media (max-width:1199.98px){
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .wide-card{grid-column:span 2;}
}
@media (max-width:991.98px){
  h1{font-size:34px;}
  h2{font-size:26px;}
  .section{padding:64px 0;}
  .stat-band{grid-template-columns:repeat(2,1fr);}
  .stat-cell:nth-child(2){border-right:0;}
  .stat-cell:nth-child(1),.stat-cell:nth-child(2){border-bottom:1px solid var(--line);}
  .highlight-row{grid-template-columns:1fr;}
  .dark-inner{flex-direction:column;align-items:flex-start;}
  .cta-bar{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:575.98px){
  body{font-size:14.5px;}
  h1{font-size:28px;}
  h2{font-size:22px;}
  h3{font-size:18px;}
  .container,.container-nav{padding:0 20px;}
  .section{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}
  .card-grid{grid-template-columns:1fr;}
  .wide-card{flex-direction:column;align-items:stretch;padding:20px;}
  .wide-card .cover-wrap{width:100%;}
  .support-card{padding:20px;}
  .card-badge{top:30px;right:30px;}
  .card-foot{flex-direction:column;align-items:flex-start;gap:10px;}
  .btn-c{width:100%;}
  .cta-actions{width:100%;flex-direction:column;}
  .dark-band{padding:32px 22px;border-radius:16px;}
  .stat-band{grid-template-columns:1fr;}
  .stat-cell{border-right:0;border-bottom:1px solid var(--line);}
  .stat-cell:last-child{border-bottom:0;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .faq-q{font-size:16px;}
  .hl-card{flex-direction:column;gap:12px;}
}