/* roulang page: index */
:root{
  --brand:#0F7A6B;
  --brand-dark:#0A5A4F;
  --brand-light:#E6F2EF;
  --accent:#FF6B3D;
  --yellow:#F2C14E;
  --ink:#0C1F1C;
  --text:#2A3B38;
  --muted:#6B7C79;
  --line:#E3E8E6;
  --bg:#F6F7F4;
  --card:#FFFFFF;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(12,31,28,.06);
  --sh-2:0 12px 32px -12px rgba(12,31,28,.18);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding-top:64px;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,background-color .18s ease;}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.36;letter-spacing:-.01em;}
h1{font-weight:800;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px;}
@media(min-width:1024px){.container{padding:0 24px;}}

/* ---------- 导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:90;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .22s ease;}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.nav-inner{height:63px;display:flex;align-items:center;gap:8px;}
.brand{display:inline-flex;align-items:baseline;gap:3px;font-size:19px;font-weight:800;color:var(--ink);letter-spacing:-.02em;flex:0 0 auto;}
.brand:hover{color:var(--brand);}
.brand-sub{font-size:12px;font-weight:600;color:var(--brand);background:var(--brand-light);padding:1px 6px;border-radius:6px;letter-spacing:0;}
.nav-main{display:flex;align-items:center;gap:2px;margin-left:28px;}
.nav-link{position:relative;padding:7px 12px;font-size:15px;color:var(--text);border-radius:8px;white-space:nowrap;}
.nav-link:hover{color:var(--brand);background:var(--brand-light);}
.nav-link.is-active{color:var(--brand);font-weight:600;}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:2px;background:var(--brand);border-radius:2px;}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.icon-btn{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);background:#fff;border-radius:10px;color:var(--text);cursor:pointer;transition:.18s ease;}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);}
.icon-btn svg{width:18px;height:18px;}
.menu-btn{display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:10px;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:4px;}
.menu-btn span{display:block;width:17px;height:2px;background:var(--ink);border-radius:2px;transition:.2s;}
.menu-btn.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.menu-btn.is-open span:nth-child(2){opacity:0;}
.menu-btn.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.nav-search{max-height:0;overflow:hidden;background:#fff;border-top:1px solid transparent;transition:max-height .24s ease;}
.nav-search.is-open{max-height:96px;border-top-color:var(--line);}
.nav-search form{display:flex;gap:10px;padding:12px 0;}
.nav-search input{flex:1 1 auto;height:44px;border:1px solid var(--line);border-radius:10px;padding:0 14px;background:var(--bg);color:var(--text);}
.nav-search input:focus{border-color:var(--brand);box-shadow:0 0 0 2px rgba(15,122,107,.16);outline:none;background:#fff;}
@media(max-width:1023px){
  .nav-main{position:fixed;top:64px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;gap:0;margin:0;border-bottom:1px solid var(--line);box-shadow:var(--sh-2);transform:translateY(-10px);opacity:0;pointer-events:none;transition:transform .2s ease,opacity .2s ease;max-height:calc(100vh - 64px);overflow:auto;}
  .nav-main.is-open{transform:none;opacity:1;pointer-events:auto;}
  .nav-link{padding:0 20px;height:48px;display:flex;align-items:center;border-bottom:1px solid var(--line);border-radius:0;font-size:16px;}
  .nav-link.is-active::after{display:none;}
  .nav-link.is-active{background:var(--brand-light);}
  .menu-btn{display:inline-flex;}
}
@media(max-width:639px){
  .nav-actions .btn-primary{display:none;}
}

/* ---------- 通用按钮/徽章 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(10,90,79,.85);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:#e85a2d;color:#fff;transform:translateY(-1px);}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
@media(max-width:639px){.btn{min-height:48px;}.btn-sm{min-height:44px;}}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;padding:4px 12px;border-radius:999px;line-height:1.6;}
.badge-live{background:var(--accent);color:#fff;}
.badge-live i{width:6px;height:6px;border-radius:50%;background:#fff;animation:pulse 1.5s infinite;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.3;}}
.badge-soft{background:var(--brand-light);color:var(--brand);font-weight:500;}
.badge-time{background:rgba(12,31,28,.78);color:#fff;font-weight:500;font-size:12px;padding:3px 9px;}

/* ---------- Hero ---------- */
.hero{padding:44px 0 56px;background:linear-gradient(180deg,#fff 0%,var(--bg) 100%);}
@media(min-width:1024px){.hero{padding:68px 0 88px;}}
.hero-grid{display:grid;gap:34px;}
@media(min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:52px;align-items:center;}}
.hero h1{font-size:clamp(29px,4vw,46px);letter-spacing:-.025em;margin:18px 0 16px;}
.hero-sub{font-size:17px;color:var(--muted);max-width:520px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-meta{margin-top:22px;display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--muted);font-variant-numeric:tabular-nums;}
.hero-meta b{color:var(--ink);font-weight:600;}
.hero-meta .dot{width:4px;height:4px;border-radius:50%;background:#C8D2CF;}
.live-card{position:relative;border-radius:var(--r-card);overflow:hidden;background:var(--ink);box-shadow:var(--sh-2);}
.live-card img{width:100%;aspect-ratio:16/11;object-fit:cover;opacity:.9;}
.live-tag{position:absolute;left:16px;top:16px;background:var(--accent);color:#fff;font-size:13px;font-weight:700;padding:4px 12px;border-radius:999px;letter-spacing:.02em;}
.countdown{position:absolute;right:16px;bottom:16px;left:16px;display:flex;justify-content:flex-end;}
.cd-grid{display:flex;gap:8px;}
.cd-cell{width:58px;background:rgba(12,31,28,.86);border:1px solid rgba(255,255,255,.16);border-radius:12px;padding:6px 0;text-align:center;color:#fff;}
.cd-cell b{display:block;font-size:22px;font-weight:700;line-height:1.2;font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.cd-cell span{display:block;font-size:11px;color:rgba(255,255,255,.68);line-height:1.4;}
.cd-done{background:rgba(12,31,28,.9);color:#fff;font-size:14px;padding:8px 14px;border-radius:999px;display:inline-flex;align-items:center;gap:8px;}
.cd-done a{color:var(--yellow);}
@media(max-width:639px){
  .cd-cell{width:52px;border-radius:10px;}
  .cd-cell b{font-size:19px;}
  .countdown{left:12px;right:12px;bottom:12px;}
  .live-tag{left:12px;top:12px;}
}

/* ---------- 板块 ---------- */
.section{padding:54px 0;}
@media(min-width:1024px){.section{padding:84px 0;}}
.section-tight{padding:44px 0;}
@media(min-width:1024px){.section-tight{padding:64px 0;}}
.section-head{max-width:720px;margin-bottom:32px;}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--brand);background:var(--brand-light);padding:3px 12px;border-radius:999px;margin-bottom:14px;}
.section-head h2{font-size:clamp(23px,2.6vw,33px);}
.section-head p{margin-top:12px;color:var(--muted);font-size:16px;}

/* ---------- 看点列表 ---------- */
.point-list{border-top:1px solid var(--line);}
.point-list li{display:grid;grid-template-columns:64px 1fr;gap:16px;align-items:start;padding:22px 0;border-bottom:1px solid var(--line);transition:padding-left .2s ease,background-color .2s ease;}
.point-list li:hover{padding-left:8px;background:#fff;}
.point-num{font-size:30px;font-weight:800;color:#D8E2DF;font-variant-numeric:tabular-nums;line-height:1.2;transition:color .2s ease;}
.point-list li:hover .point-num{color:var(--brand);}
.point-list h3{font-size:18px;margin-bottom:6px;}
.point-list p{color:var(--muted);font-size:15px;}
@media(max-width:639px){
  .point-list li{grid-template-columns:46px 1fr;gap:12px;}
  .point-num{font-size:23px;}
}

/* ---------- 订阅 ---------- */
.subscribe-panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;display:grid;gap:22px;box-shadow:var(--sh-1);}
@media(min-width:900px){.subscribe-panel{grid-template-columns:1fr 1fr;align-items:center;padding:36px 40px;gap:48px;}}
.subscribe-panel h2{font-size:clamp(21px,2.3vw,27px);}
.subscribe-panel p{margin-top:10px;color:var(--muted);font-size:15px;}
.sub-form{display:grid;gap:12px;grid-template-columns:1fr;}
@media(min-width:560px){.sub-form{grid-template-columns:1fr auto;align-items:start;}}
.sub-form input{height:48px;border:1px solid var(--line);border-radius:var(--r-btn);padding:0 16px;background:var(--bg);color:var(--text);transition:.18s;}
.sub-form input:focus{border-color:var(--brand);background:#fff;box-shadow:0 0 0 2px rgba(15,122,107,.16);outline:none;}
.sub-form input.is-error{border-color:var(--accent);box-shadow:0 0 0 2px rgba(255,107,61,.16);}
.sub-form button{height:48px;min-height:48px;}
.form-msg{grid-column:1/-1;font-size:14px;color:var(--muted);min-height:20px;}
.form-msg.ok{color:var(--brand);}
.form-msg.err{color:var(--accent);}

/* ---------- 回放滚动带 ---------- */
.replay-rail{display:flex;gap:20px;overflow-x:auto;padding:4px 0 18px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;}
.replay-rail::-webkit-scrollbar{height:4px;}
.replay-rail::-webkit-scrollbar-track{background:var(--line);border-radius:4px;}
.replay-rail::-webkit-scrollbar-thumb{background:#BFCFCB;border-radius:4px;}
.replay-card{flex:0 0 268px;scroll-snap-align:start;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease;}
.replay-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.replay-card .thumb{position:relative;overflow:hidden;}
.replay-card .thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s ease;}
.replay-card:hover .thumb img{transform:scale(1.03);}
.replay-card .badge-time{position:absolute;right:10px;bottom:10px;}
.replay-body{padding:16px 18px 18px;}
.replay-body h3{font-size:16px;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:51px;}
.replay-card:hover h3{color:var(--brand);}
.replay-body time{display:block;margin-top:10px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}

/* ---------- 图文交错 ---------- */
.feature-block{border-top:1px solid var(--line);}
.feature-row{display:grid;gap:26px;align-items:center;padding:34px 0;}
@media(min-width:900px){
  .feature-row{grid-template-columns:1fr 1fr;gap:60px;padding:44px 0;}
  .feature-row.rev .f-media{order:2;}
}
.f-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-1);}
.f-copy h3{font-size:clamp(19px,2.1vw,24px);margin-bottom:12px;}
.f-copy>p{color:var(--muted);font-size:15px;margin-bottom:18px;}
.f-list li{display:flex;gap:10px;align-items:flex-start;padding:9px 0;font-size:15px;color:var(--text);}
.f-list li::before{content:"";flex:0 0 auto;width:6px;height:6px;margin-top:11px;border-radius:50%;background:var(--brand);}
.f-list b{color:var(--ink);font-weight:600;margin-right:4px;}

/* ---------- 数据条 ---------- */
.stats-band{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px 24px;display:grid;gap:24px;box-shadow:var(--sh-1);}
@media(min-width:768px){.stats-band{grid-template-columns:repeat(4,1fr);padding:36px 40px;gap:32px;}}
.stat b{display:block;font-size:clamp(27px,3vw,36px);font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:-.02em;line-height:1.2;}
.stat span{display:block;margin-top:6px;font-size:14px;color:var(--muted);}
@media(max-width:767px){.stats-band{grid-template-columns:1fr 1fr;}}

/* ---------- 最新信息（CMS） ---------- */
.news-list{display:grid;gap:20px;}
@media(min-width:1024px){.news-list{grid-template-columns:1fr 1fr;}}
.news-item{display:grid;grid-template-columns:132px 1fr;gap:18px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:16px;transition:transform .2s ease,box-shadow .2s ease;}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.news-thumb{display:block;border-radius:var(--r-img);overflow:hidden;background:var(--brand-light);}
.news-thumb img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;}
.news-main{min-width:0;}
.news-title{font-size:17px;margin:10px 0 8px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-title a{color:var(--ink);}
.news-item:hover .news-title a{color:var(--brand);}
.news-desc{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{margin-top:12px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}
.news-more{font-weight:600;font-size:13px;white-space:nowrap;}
@media(max-width:559px){
  .news-item{grid-template-columns:1fr;padding:14px;}
  .news-thumb img{aspect-ratio:16/9;}
}
.empty-state{background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);min-height:180px;max-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:var(--muted);text-align:center;padding:28px;}
.empty-icon{width:44px;height:44px;border-radius:50%;background:var(--brand-light);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800;letter-spacing:2px;}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;}
.faq-item{border:1px solid var(--line);border-radius:12px;background:#fff;margin-bottom:12px;overflow:hidden;transition:border-color .2s ease;}
.faq-item[open]{border-color:#C6DCD6;}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 20px;font-weight:600;color:var(--ink);display:flex;justify-content:space-between;align-items:center;gap:16px;font-size:16px;transition:background-color .2s ease;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"";flex:0 0 auto;width:8px;height:8px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(45deg);transition:transform .22s ease;margin-top:-4px;}
.faq-item summary:hover{background:var(--bg);}
.faq-item[open] summary{background:var(--brand-light);color:var(--brand-dark);}
.faq-item[open] summary::after{transform:rotate(-135deg);border-color:var(--brand-dark);margin-top:4px;}
.faq-body{padding:4px 20px 20px;font-size:15px;color:var(--text);}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--ink);border-radius:20px;padding:32px 26px;display:grid;gap:22px;}
@media(min-width:900px){.cta-band{grid-template-columns:1fr auto;align-items:center;padding:44px 48px;gap:40px;}}
.cta-band h2{color:#fff;font-size:clamp(21px,2.4vw,29px);}
.cta-band p{margin-top:10px;color:rgba(255,255,255,.68);font-size:15px;}
.cta-band .btn-accent{white-space:nowrap;}
@media(max-width:899px){.cta-band .btn{width:100%;}}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);margin-top:56px;padding:48px 0 0;}
@media(min-width:1024px){.site-footer{margin-top:84px;padding-top:60px;}}
.footer-grid{display:grid;gap:32px;}
@media(min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}}
.footer-brand p{margin-top:14px;font-size:14px;color:var(--muted);max-width:280px;}
.footer-col h4{font-size:15px;margin-bottom:14px;color:var(--ink);}
.footer-col a,.footer-col span{display:block;font-size:14px;color:var(--muted);padding:5px 0;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{margin-top:36px;border-top:1px solid var(--line);padding:18px 0 26px;display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;font-size:13px;color:var(--muted);}

/* roulang page: article */
:root{
  --brand:#0F7A6B;
  --brand-dark:#0A5A4F;
  --brand-light:#E6F2EF;
  --accent:#FF6B3D;
  --yellow:#F2C14E;
  --ink:#0C1F1C;
  --text:#2A3B38;
  --muted:#6B7C79;
  --line:#E3E8E6;
  --bg:#F6F7F4;
  --card:#FFFFFF;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(12,31,28,.06);
  --sh-2:0 12px 32px -12px rgba(12,31,28,.18);
  --container:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:700;line-height:1.35;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
input,textarea,select{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:1024px){.container{padding:0 24px;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  text-align:center;
}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;border-radius:9px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px -10px rgba(15,122,107,.7);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--brand);border-color:#C7DEDA;}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);border-color:var(--brand);transform:translateY(-1px);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:#E85A2E;color:#fff;transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--ink);}
.btn-light:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px);}
.btn-block{width:100%;}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1.6;
  background:var(--brand-light);color:var(--brand-dark);
}
.badge-live{background:var(--accent);color:#fff;}
.badge-live::before{content:"";width:6px;height:6px;border-radius:50%;background:#fff;display:inline-block;animation:pulse 1.6s infinite;}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(.8);}}
.badge-time{background:rgba(12,31,28,.72);color:#fff;}
.badge-soft{background:#fff;color:var(--brand);border:1px solid #CDE3DE;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid transparent;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-1);}
.nav-inner{display:flex;align-items:center;gap:28px;height:64px;transition:height .2s ease;}
.site-header.is-scrolled .nav-inner{height:56px;}
.brand{display:inline-flex;align-items:baseline;gap:5px;font-size:19px;font-weight:800;color:var(--ink);letter-spacing:-.02em;flex:0 0 auto;}
.brand:hover{color:var(--ink);}
.brand-sub{font-size:11.5px;font-weight:700;color:var(--brand);background:var(--brand-light);padding:2px 7px;border-radius:999px;letter-spacing:.06em;}
.nav-main{display:flex;align-items:center;gap:4px;margin-right:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:9px 13px;border-radius:9px;
  font-size:15px;font-weight:500;color:var(--text);
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--brand);background:var(--brand-light);}
.nav-link.is-active{color:var(--brand);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;border-radius:2px;background:var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--text);cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.icon-btn svg{width:18px;height:18px;}
.icon-btn:hover{background:var(--brand-light);color:var(--brand);border-color:#C7DEDA;}
.menu-btn{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.menu-btn span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease,opacity .2s ease;}
.nav-search{display:none;background:#fff;border-top:1px solid var(--line);box-shadow:var(--sh-1);}
.nav-search.is-open{display:block;}
.nav-search form{display:flex;gap:10px;padding:14px 0;}
.nav-search input{
  flex:1 1 auto;min-height:48px;padding:0 16px;
  border:1px solid var(--line);border-radius:10px;background:#FBFCFB;color:var(--text);
}
.nav-search input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,122,107,.14);outline:none;}

@media (max-width:1024px){
  .nav-inner{gap:14px;}
  .menu-btn{display:inline-flex;}
  .nav-actions .btn-primary.btn-sm{display:none;}
  .nav-main{
    position:absolute;left:0;right:0;top:100%;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
    box-shadow:var(--sh-2);padding:0;margin:0;
  }
  .nav-main.is-open{display:flex;}
  .nav-link{height:48px;padding:0 20px;border-radius:0;border-bottom:1px solid var(--line);font-size:15.5px;}
  .nav-link.is-active::after{display:none;}
  .nav-link.is-active{background:var(--brand-light);}
}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:var(--brand-light);border-bottom:1px solid #D6E8E3;}
.crumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13.5px;color:var(--muted);}
.crumb-list a{color:var(--brand-dark);font-weight:500;}
.crumb-list a:hover{text-decoration:underline;}
.crumb-sep{color:#9FB4B0;}
.crumb-current{color:var(--muted);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
@media (max-width:640px){.crumb-current{white-space:normal;max-width:100%;}}

/* ---------- 文章头部 ---------- */
.article-head{padding:44px 0 32px;background:#fff;border-bottom:1px solid var(--line);}
.article-head .kicker{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:16px;}
.article-head h1{font-size:clamp(28px,3.6vw,42px);line-height:1.28;max-width:900px;font-weight:800;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;margin-top:22px;font-size:14px;color:var(--muted);}
.article-meta .num{font-variant-numeric:tabular-nums;font-weight:600;color:var(--text);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C6D2CF;}
.lede{margin-top:20px;max-width:820px;font-size:17px;line-height:1.85;color:#41544F;}

/* ---------- 正文布局 ---------- */
.article-main{padding:48px 0 0;}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;align-items:start;}
@media (max-width:1024px){.layout{grid-template-columns:1fr;gap:32px;}}

.reading-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:32px;}
@media (max-width:640px){.reading-card{padding:22px 18px;border-radius:14px;}}
.article-content{max-width:760px;margin:0 auto;font-size:16px;line-height:1.92;color:var(--text);}
.article-content > *:first-child{margin-top:0;}
.article-content p{margin:0 0 1.2em;}
.article-content h2{
  font-size:clamp(21px,2.4vw,25px);margin:2em 0 .8em;padding-left:14px;
  border-left:4px solid var(--brand);line-height:1.45;
}
.article-content h3{font-size:19px;font-weight:700;margin:1.7em 0 .6em;}
.article-content h4{font-size:16.5px;font-weight:700;margin:1.4em 0 .5em;}
.article-content ul,.article-content ol{margin:0 0 1.3em;padding-left:1.4em;}
.article-content ul{list-style:disc;}
.article-content ol{list-style:decimal;}
.article-content li{margin:.4em 0;}
.article-content a{color:var(--brand);text-decoration:underline;text-decoration-color:#B7D5CF;text-underline-offset:3px;}
.article-content a:hover{color:var(--brand-dark);text-decoration-color:var(--brand);}
.article-content img{border-radius:var(--r-img);margin:26px auto;}
.article-content figure{margin:26px 0;}
.article-content figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-content blockquote{
  margin:1.6em 0;padding:18px 22px;background:var(--brand-light);
  border-left:3px solid var(--brand);border-radius:0 12px 12px 0;color:var(--brand-dark);
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content code{
  background:#F1F3F2;padding:2px 6px;border-radius:6px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px;color:#0E4A42;
}
.article-content pre{
  background:#F1F3F2;border:1px solid var(--line);border-radius:12px;padding:16px 18px;
  overflow-x:auto;font-size:14px;line-height:1.75;margin:1.5em 0;
}
.article-content pre code{background:none;padding:0;color:var(--text);}
.article-content table{width:100%;border-collapse:collapse;font-size:14.5px;margin:1.6em 0;display:block;overflow-x:auto;}
.article-content th,.article-content td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.article-content th{background:#F4F7F6;font-weight:600;color:var(--ink);}
.article-content hr{border:0;border-top:1px solid var(--line);margin:2.4em 0;}

.empty-state{
  max-width:760px;margin:0 auto;text-align:center;padding:56px 24px;color:var(--muted);
}
.empty-state .ico{
  width:56px;height:56px;margin:0 auto 18px;border-radius:50%;
  background:var(--brand-light);color:var(--brand);display:flex;align-items:center;justify-content:center;
  font-size:24px;font-weight:700;
}
.empty-state p{margin-bottom:18px;font-size:16px;}

/* ---------- 标签行 ---------- */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:36px 0 0;padding-top:24px;border-top:1px solid var(--line);}
.tag-row .label{font-size:13.5px;color:var(--muted);margin-right:4px;}
.tag{
  display:inline-flex;align-items:center;padding:6px 13px;border-radius:999px;
  background:#F4F7F6;border:1px solid var(--line);color:var(--brand-dark);font-size:13.5px;
  transition:background .18s ease,border-color .18s ease,transform .18s ease;
}
.tag:hover{background:var(--brand-light);border-color:#C7DEDA;color:var(--brand-dark);transform:translateY(-1px);}

/* ---------- 侧栏 ---------- */
.side{display:flex;flex-direction:column;gap:20px;position:sticky;top:88px;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:22px;}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--brand);display:inline-block;}
.side-list{display:flex;flex-direction:column;}
.side-list a{
  display:block;padding:12px 0;border-bottom:1px solid var(--line);
  font-size:14.5px;color:var(--text);font-weight:500;line-height:1.6;
}
.side-list a:last-child{border-bottom:0;padding-bottom:0;}
.side-list a:hover{color:var(--brand);}
.side-list span{display:block;font-size:12.5px;color:var(--muted);font-weight:400;margin-top:4px;}
@media (max-width:1024px){.side{position:static;order:2;}}

/* ---------- 相关推荐 ---------- */
.related{padding:64px 0 0;}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:26px;}
.sec-head h2{font-size:clamp(22px,2.6vw,28px);}
.sec-head p{font-size:14.5px;color:var(--muted);margin-top:6px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
@media (max-width:1024px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:640px){.card-grid{grid-template-columns:1fr;}}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  display:flex;flex-direction:column;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D3E3DF;}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:#EDF2F0;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.card:hover .card-media img{transform:scale(1.04);}
.card-media .badge{position:absolute;left:12px;bottom:12px;}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.card-body h3{font-size:17px;line-height:1.5;}
.card:hover .card-body h3{color:var(--brand);}
.card-body p{font-size:14.5px;color:var(--muted);line-height:1.75;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);padding-top:6px;}
.arrow-link{font-size:13.5px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.arrow-link::after{content:"→";transition:transform .18s ease;}
.card:hover .arrow-link::after{transform:translateX(3px);}

.back-row{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin:40px 0 0;}

/* ---------- CTA 条 ---------- */
.cta-band{padding:72px 0;}
@media (max-width:640px){.cta-band{padding:52px 0;}}
.cta-inner{
  background:var(--ink);border-radius:20px;padding:44px 46px;
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:34px;align-items:center;
  color:#DDE9E6;box-shadow:var(--sh-2);
}
@media (max-width:1024px){.cta-inner{grid-template-columns:1fr;padding:34px 26px;}}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.6vw,30px);}
.cta-inner p{margin-top:12px;font-size:15px;color:#A9BFBA;line-height:1.8;}
.cta-form{display:flex;gap:10px;}
.cta-form input{
  flex:1 1 auto;min-height:48px;padding:0 16px;border-radius:10px;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#fff;
}
.cta-form input::placeholder{color:#8FA9A4;}
.cta-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,122,107,.35);}
@media (max-width:640px){.cta-form{flex-direction:column;}.cta-form .btn{width:100%;}}
.cta-note{margin-top:12px;font-size:12.5px;color:#7F9994;}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:56px 0 26px;margin-top:8px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
@media (max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px;}}
@media (max-width:640px){.footer-grid{grid-template-columns:1fr;}}
.footer-brand p{margin-top:14px;font-size:14.5px;color:var(--muted);line-height:1.8;max-width:34ch;}
.footer-col h4{font-size:15px;margin-bottom:14px;}
.footer-col a,.footer-col span{display:block;font-size:14.5px;color:var(--muted);padding:6px 0;line-height:1.7;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--muted);
}
@media (max-width:640px){.footer-bottom{flex-direction:column;}}

/* roulang page: category1 */
:root{
  --brand:#0F7A6B;
  --brand-dark:#0A5A4F;
  --brand-light:#E6F2EF;
  --accent:#FF6B3D;
  --gold:#F2C14E;
  --ink:#0C1F1C;
  --text:#2A3B38;
  --muted:#6B7C79;
  --line:#E3E8E6;
  --bg:#F6F7F4;
  --card:#FFFFFF;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(12,31,28,.06);
  --sh-2:0 12px 32px -12px rgba(12,31,28,.18);
  --hd:64px;
  --hd-sm:56px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:var(--hd);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{
  margin:0;
  color:var(--ink);
  font-family:inherit;
  font-weight:700;
  line-height:1.35;
  letter-spacing:-.01em;
}
h1{font-size:clamp(30px,4vw,46px);font-weight:800;}
h2{font-size:clamp(24px,3vw,34px);font-weight:800;}
h3{font-size:clamp(18px,2vw,21px);}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
a{color:var(--brand-dark);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--brand);}
img{max-width:100%;height:auto;display:block;border:0;}
ul,ol{margin:0 0 1em;padding-left:1.2em;}
li{margin-bottom:.4em;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
button{cursor:pointer;}
::selection{background:var(--brand-light);color:var(--brand-dark);}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

.container,
.grid-container{
  width:100%;
  max-width:1200px;
  margin-left:auto;
  margin-right:auto;
  padding-left:20px;
  padding-right:20px;
}
.grid-container.fluid{padding-left:20px;padding-right:20px;}
@media (min-width:1024px){
  .container,.grid-container{padding-left:24px;padding-right:24px;}
}

/* 顶部导航 */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid transparent;
  transition:height .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 6px 20px -14px rgba(12,31,28,.4);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:16px;
  height:var(--hd);
  transition:height .22s ease;
}
.site-header.is-scrolled .nav-inner{height:var(--hd-sm);}
.brand{
  display:inline-flex;
  align-items:baseline;
  gap:8px;
  font-size:19px;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--ink);
  white-space:nowrap;
}
.brand:hover{color:var(--brand-dark);}
.brand .brand-sub{
  font-size:12px;
  font-weight:700;
  letter-spacing:.16em;
  color:var(--brand);
  padding:2px 8px;
  border-radius:999px;
  background:var(--brand-light);
}
.nav-main{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:28px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 14px;
  border-radius:999px;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  transition:background .2s ease,color .2s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transition:transform .22s ease;
}
.nav-link:hover{background:var(--brand-light);color:var(--brand-dark);}
.nav-link.is-active{color:var(--brand-dark);font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:auto;
}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:#fff;
  color:var(--ink);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.icon-btn svg{width:18px;height:18px;}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-light);}
.menu-btn{
  display:none;
  width:40px;height:40px;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:#fff;
}
.menu-btn span{
  display:block;
  width:17px;height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:transform .22s ease,opacity .2s ease;
}
.menu-btn.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.menu-btn.is-open span:nth-child(2){opacity:0;}
.menu-btn.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.nav-search{
  max-height:0;
  overflow:hidden;
  border-top:1px solid transparent;
  background:#fff;
  transition:max-height .28s ease,border-color .28s ease;
}
.nav-search.is-open{max-height:110px;border-top-color:var(--line);}
.nav-search form{
  display:flex;
  gap:10px;
  padding:14px 0;
}
.nav-search input{
  flex:1;
  height:44px;
  margin:0;
  padding:0 16px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:#fff;
  color:var(--text);
  box-shadow:none;
}
.nav-search input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,122,107,.16);outline:none;}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border:1px solid transparent;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:600;
  text-align:center;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .18s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);background:var(--brand-dark);}
.btn-ghost{background:#fff;color:var(--brand-dark);border-color:#C9DCD7;}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-dark);background:var(--brand-light);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:#E85A2C;color:#fff;transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--ink);}
.btn-light:hover{background:#EAF3F1;color:var(--ink);}
.btn-outline-light{background:transparent;color:#EAF3F1;border-color:rgba(234,243,241,.5);}
.btn-outline-light:hover{background:rgba(234,243,241,.12);color:#fff;border-color:#fff;}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}

/* 通用板块 */
.section{padding:64px 0;}
@media (min-width:1024px){.section{padding:88px 0;}}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:14px;
  padding:4px 12px;
  border-radius:999px;
  background:var(--brand-light);
  color:var(--brand-dark);
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;}
.band-white{background:#fff;}
.band-soft{background:var(--brand-light);}

/* 分类头部 */
.page-hero{
  position:relative;
  padding:56px 0 60px;
  background:
    linear-gradient(180deg,rgba(230,242,239,.94) 0%,rgba(246,247,244,.96) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";
  position:absolute;
  right:6%;top:50%;
  width:220px;height:220px;
  transform:translateY(-50%);
  border-radius:50%;
  background:radial-gradient(circle,rgba(15,122,107,.16),rgba(15,122,107,0) 68%);
  pointer-events:none;
}
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin-bottom:18px;
  font-size:13px;
  color:var(--muted);
}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{opacity:.6;}
.crumbs .current{color:var(--brand-dark);font-weight:600;}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:16px;
  padding:5px 14px;
  border-radius:999px;
  background:#fff;
  border:1px solid #CFE3DE;
  color:var(--brand-dark);
  font-size:13px;
  font-weight:600;
}
.hero-badge .dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 0 4px rgba(15,122,107,.14);
}
.page-hero h1{max-width:840px;}
.page-hero .lead{
  max-width:760px;
  margin-top:18px;
  font-size:17px;
  color:var(--text);
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:28px;
  margin-top:30px;
  padding-top:24px;
  border-top:1px solid #D5E5E0;
}
.hero-meta .m-item{min-width:120px;}
.hero-meta .m-num{
  display:block;
  font-size:26px;
  font-weight:800;
  color:var(--brand-dark);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.hero-meta .m-label{font-size:13px;color:var(--muted);}

/* 纵向图文列表 */
.choice-list{display:flex;flex-direction:column;gap:24px;}
.choice-item{
  display:grid;
  grid-template-columns:340px 1fr;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.choice-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFE3DE;}
.choice-media{position:relative;min-height:240px;background:var(--brand-light);}
.choice-media img{width:100%;height:100%;object-fit:cover;}
.choice-media .badge-duration{
  position:absolute;left:16px;bottom:16px;
  padding:4px 10px;
  border-radius:999px;
  background:rgba(12,31,28,.7);
  color:#fff;
  font-size:12px;
  font-weight:600;
  font-variant-numeric:tabular-nums;
}
.choice-body{display:flex;gap:24px;padding:30px 34px;}
.choice-index{
  flex:none;
  font-size:38px;
  font-weight:800;
  line-height:1;
  color:#C9DCD7;
  font-variant-numeric:tabular-nums;
  transition:color .22s ease;
}
.choice-item:hover .choice-index{color:var(--brand);}
.choice-text h3{margin-bottom:10px;}
.choice-text p{color:var(--text);margin-bottom:0;}
.choice-points{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:16px;
}
.chip{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  border-radius:999px;
  background:var(--brand-light);
  color:var(--brand-dark);
  font-size:13px;
  font-weight:600;
}

/* 速查卡 */
.spec-grid{margin-bottom:28px;}
.spec-card{
  height:100%;
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:24px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.spec-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.spec-card .spec-tag{
  align-self:flex-start;
  padding:3px 10px;
  border-radius:999px;
  background:var(--brand-light);
  color:var(--brand-dark);
  font-size:12px;
  font-weight:700;
}
.spec-card .spec-cpu{
  font-size:23px;
  font-weight:800;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
}
.spec-card .spec-desc{font-size:14px;color:var(--muted);margin:0;}
.spec-card .spec-line{
  margin-top:auto;
  padding-top:12px;
  border-top:1px dashed var(--line);
  font-size:13px;
  color:var(--brand-dark);
  font-weight:600;
}
.rows{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
}
.row-item{
  display:grid;
  grid-template-columns:1.05fr 1fr 1fr 1.25fr;
  gap:16px;
  align-items:center;
  min-height:64px;
  padding:18px 24px;
  border-top:1px solid var(--line);
  font-size:15px;
  transition:background .2s ease;
}
.row-item:first-child{border-top:0;}
.row-item:not(.row-head):hover{background:var(--bg);}
.row-head{
  background:var(--brand-light);
  color:var(--brand-dark);
  font-weight:700;
  font-size:14px;
  letter-spacing:.02em;
}
.row-item .cell-strong{font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums;}
.row-item .cell-muted{color:var(--muted);font-size:14px;}

/* 流程 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.flow-step{
  position:relative;
  padding:26px 24px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.flow-step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.flow-step .step-num{
  width:38px;height:38px;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:16px;
  border-radius:50%;
  background:var(--brand);
  color:#fff;
  font-weight:800;
  font-variant-numeric:tabular-nums;
}
.flow-step h3{font-size:18px;margin-bottom:8px;}
.flow-step p{font-size:14px;color:var(--muted);margin:0;}

/* 场景错位双列 */
.scene{
  display:grid;
  grid-template-columns:1.12fr .88fr;
  gap:24px;
  align-items:stretch;
  margin-bottom:24px;
}
.scene.rev{grid-template-columns:.88fr 1.12fr;}
.scene.rev .scene-media{order:2;}
.scene.rev .scene-card{order:1;}
.scene-media{
  position:relative;
  min-height:280px;
  border-radius:var(--r-lg);
  overflow:hidden;
  background:var(--brand-light);
}
.scene-media img{width:100%;height:100%;object-fit:cover;}
.scene-media .scene-caption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:26px 22px 18px;
  background:linear-gradient(180deg,rgba(12,31,28,0),rgba(12,31,28,.78));
  color:#fff;
  font-size:14px;
  font-weight:600;
}
.scene-card{
  display:flex;
  flex-direction:column;
  justify-content:center;
  padding:32px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
}
.scene-card h3{margin-bottom:12px;}
.scene-card p{color:var(--muted);font-size:15px;}
.scene-card ul{margin:0;padding-left:0;list-style:none;}
.scene-card li{
  position:relative;
  padding-left:22px;
  margin-bottom:10px;
  font-size:15px;
  color:var(--text);
}
.scene-card li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--brand-light);
  border:2px solid var(--brand);
}

/* FAQ */
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  margin-bottom:12px;
  overflow:hidden;
  transition:background .22s ease,border-color .22s ease;
}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  list-style:none;
  cursor:pointer;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::marker{content:"";}
.faq-icon{
  flex:none;
  width:26px;height:26px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  background:var(--brand-light);
  color:var(--brand-dark);
  transition:transform .24s ease,background .22s ease;
}
.faq-icon svg{width:14px;height:14px;}
.faq-item:hover{border-color:#CFE3DE;}
.faq-item[open]{background:var(--brand-light);border-color:#CFE3DE;}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:#fff;}
.faq-body{padding:0 22px 20px;font-size:15px;color:var(--text);}
.faq-body p{margin-bottom:.8em;}

/* CTA */
.cta-wrap{padding-bottom:80px;}
.cta-band{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:36px;
  align-items:center;
  padding:44px;
  border-radius:20px;
  background:var(--ink);
  color:#E8EFED;
  box-shadow:var(--sh-2);
}
.cta-band h2{color:#fff;margin-bottom:12px;}
.cta-band p{color:#B9CFCA;margin:0;}
.cta-band .cta-note{
  display:flex;
  flex-wrap:wrap;
  gap:18px;
  margin-top:18px;
  font-size:13px;
  color:#8FA8A3;
}
.cta-band .cta-note span{
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.cta-band .cta-note span::before{
  content:"";
  width:6px;height:6px;
  border-radius:50%;
  background:var(--accent);
}
.cta-form{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.cta-form .field{display:flex;gap:10px;}
.cta-form input{
  flex:1;
  height:48px;
  margin:0;
  padding:0 16px;
  border:1px solid rgba(255,255,255,.22);
  border-radius:var(--r-sm);
  background:#fff;
  color:var(--ink);
  box-shadow:none;
}
.cta-form input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,122,107,.28);outline:none;}
.form-msg{font-size:13px;min-height:20px;margin:0;color:#9FBBB5;}
.form-msg.is-error{color:var(--accent);}
.form-msg.is-ok{color:#7FD4C0;}

/* 页脚 */
.site-footer{
  background:#fff;
  border-top:1px solid var(--line);
  padding:56px 0 24px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1.2fr 1.1fr;
  gap:32px;
  padding-bottom:32px;
}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{font-size:14px;color:var(--muted);max-width:320px;}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:.04em;
  margin-bottom:14px;
}
.footer-col a,.footer-col span{
  display:block;
  font-size:14px;
  color:var(--muted);
  line-height:2;
}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:space-between;
  align-items:center;
  padding-top:20px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
}

/* 响应式 */
@media (max-width:1024px){
  .nav-main{margin-left:10px;}
  .nav-link{padding:0 10px;font-size:14px;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .scene,.scene.rev{grid-template-columns:1fr;}
  .scene.rev .scene-media{order:0;}
  .scene.rev .scene-card{order:0;}
  .cta-band{grid-template-columns:1fr;padding:34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .choice-item{grid-template-columns:280px 1fr;}
  .row-item{grid-template-columns:1fr 1fr;gap:8px 16px;}
}
@media (max-width:960px){
  .nav-main{
    position:fixed;
    top:var(--hd);
    left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin:0;
    padding:8px 20px 18px;
    background:#fff;
    border-bottom:1px solid var(--line);
    box-shadow:0 16px 30px -22px rgba(12,31,28,.5);
    transform:translateY(-12px);
    opacity:0;
    visibility:hidden;
    transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
    max-height:calc(100vh - var(--hd));
    overflow-y:auto;
  }
  .nav-main.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-link{
    height:48px;
    border-radius:0;
    border-bottom:1px solid var(--line);
    padding:0 4px;
    font-size:15px;
  }
  .nav-link::after{display:none;}
  .nav-link.is-active{color:var(--brand-dark);}
  .menu-btn{display:flex;}
  .site-header.is-scrolled .nav-main{top:var(--hd-sm);}
}
@media (max-width:768px){
  .section{padding:52px 0;}
  .hero-meta{gap:20px;}
  .choice-item{grid-template-columns:1fr;}
  .choice-media{min-height:200px;}
  .choice-body{padding:24px;gap:16px;}
  .choice-index{font-size:30px;}
  .flow{grid-template-columns:1fr;}
  .rows .row-item{padding:16px 18px;}
  .cta-wrap{padding-bottom:56px;}
  .site-footer{padding:44px 0 20px;}
}
@media (max-width:560px){
  body{font-size:15px;line-height:1.8;}
  .nav-inner{gap:8px;}
  .brand{font-size:17px;}
  .brand .brand-sub{font-size:11px;padding:2px 6px;}
  .nav-actions .btn-sm{padding:0 12px;font-size:13px;}
  .icon-btn{display:none;}
  .nav-search input{height:42px;}
  .page-hero{padding:38px 0 44px;}
  .page-hero .lead{font-size:15px;}
  .hero-meta{gap:16px;}
  .hero-meta .m-item{min-width:calc(50% - 8px);}
  .hero-meta .m-num{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:22px;}
  .row-item{grid-template-columns:1fr;}
  .row-head{display:none;}
  .row-item .cell-muted{font-size:13px;}
  .cta-band{padding:26px;border-radius:16px;}
  .cta-form .field{flex-direction:column;}
  .cta-form .btn{width:100%;}
  .scene-card{padding:24px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#0F7A6B;
  --c-primary-dark:#0A5A4F;
  --c-primary-light:#E6F2EF;
  --c-accent:#FF6B3D;
  --c-yellow:#F2C14E;
  --c-ink:#0C1F1C;
  --c-text:#2A3B38;
  --c-muted:#6B7C79;
  --c-line:#E3E8E6;
  --c-bg:#F6F7F4;
  --c-card:#FFFFFF;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-band:20px;
  --sh-1:0 1px 2px rgba(12,31,28,.06);
  --sh-2:0 12px 32px -12px rgba(12,31,28,.18);
  --nav-h:64px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:var(--nav-h);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  color:var(--c-text);
  background:var(--c-bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button{font:inherit;cursor:pointer;border:0;background:none}
input{font:inherit}
h1,h2,h3,h4{color:var(--c-ink);margin:0 0 12px;line-height:1.32;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(30px,4vw,44px);font-weight:800}
h2{font-size:clamp(26px,3vw,34px);font-weight:800}
h3{font-size:clamp(18px,2vw,22px)}
h4{font-size:16px}
p{margin:0 0 14px}
ul{margin:0;padding:0;list-style:none}
p:last-child{margin-bottom:0}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.container{max-width:var(--container);margin:0 auto;padding:0 20px;width:100%}
@media(min-width:1024px){.container{padding:0 24px}}
.section{padding:52px 0}
@media(min-width:1024px){.section{padding:84px 0}}
.section-head{max-width:760px;margin-bottom:32px}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.1em;color:var(--c-primary);margin-bottom:8px}
.section-head p{color:var(--c-muted);font-size:16px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:background .2s ease,color .2s ease,transform .15s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-dark);transform:translateY(-1px);color:#fff}
.btn-ghost{background:transparent;color:var(--c-primary);border:1px solid var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-light);color:var(--c-primary-dark);transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--c-ink)}
.btn-light:hover{background:var(--c-primary-light);color:var(--c-primary-dark);transform:translateY(-1px)}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
@media(max-width:520px){.btn{width:100%}.nav-actions .btn{width:auto}}

/* ---------- 导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60;background:#fff;border-bottom:1px solid transparent;transition:box-shadow .25s ease,border-color .25s ease}
.site-header.is-scrolled{border-bottom-color:var(--c-line);box-shadow:0 8px 24px -18px rgba(12,31,28,.45)}
.nav-inner{display:flex;align-items:center;gap:22px;height:var(--nav-h);transition:height .25s ease}
.site-header.is-scrolled .nav-inner{height:56px}
.brand{display:inline-flex;align-items:baseline;gap:4px;font-size:19px;font-weight:800;color:var(--c-ink);letter-spacing:-.02em}
.brand-sub{font-size:13px;font-weight:600;color:var(--c-primary);letter-spacing:.06em}
.brand:hover{color:var(--c-primary)}
.nav-main{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--c-text);padding:6px 0}
.nav-link::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--c-primary);border-radius:2px;transition:width .22s ease}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{width:100%}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;border:1px solid var(--c-line);color:var(--c-text);background:#fff;transition:color .2s,border-color .2s}
.icon-btn svg{width:18px;height:18px}
.icon-btn:hover{color:var(--c-primary);border-color:var(--c-primary)}
.menu-btn{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--c-line);background:#fff;padding:0 11px}
.menu-btn span{display:block;height:2px;background:var(--c-ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-search{display:none;background:#fff;border-top:1px solid var(--c-line);padding:14px 0}
.nav-search.is-open{display:block}
.nav-search form{display:flex;gap:12px}
.nav-search input{flex:1 1 auto;min-height:44px;padding:0 16px;border:1px solid var(--c-line);border-radius:var(--r-btn);color:var(--c-text);background:#fff}
.nav-search input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(15,122,107,.18)}
@media(max-width:1023px){
  .menu-btn{display:flex}
  .nav-main{position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:0;margin:0;padding:8px 20px 14px;background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);box-shadow:var(--sh-2)}
  .nav-main.is-open{display:flex}
  .nav-link{display:flex;align-items:center;min-height:48px;border-bottom:1px solid var(--c-line)}
  .nav-link::after{display:none}
  .nav-link:last-child{border-bottom:0}
}
@media(max-width:600px){
  .nav-actions .btn-primary{min-height:36px;padding:0 12px;font-size:13px}
  .icon-btn{width:36px;height:36px}
}

/* ---------- 分类头部 ---------- */
.cat-hero{background:var(--c-primary-light);border-bottom:1px solid var(--c-line);padding:34px 0 56px}
.crumb{font-size:14px;color:var(--c-muted);display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{color:#B6C7C3}
.cat-hero-grid{display:grid;gap:34px;margin-top:22px}
@media(min-width:900px){.cat-hero-grid{grid-template-columns:1.12fr .88fr;gap:52px;align-items:center}}
.cat-hero h1{margin:12px 0 16px}
.lead{font-size:17px;color:#3E5450;max-width:640px}
.hero-facts{display:flex;flex-wrap:wrap;gap:14px 32px;margin-top:26px;font-size:14px;color:var(--c-muted);font-variant-numeric:tabular-nums}
.hero-facts strong{display:block;font-size:22px;font-weight:800;color:var(--c-primary-dark);line-height:1.3}
.hero-visual img{aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--sh-2);width:100%}

/* ---------- 错位双列卡片网格 ---------- */
.stagger-wrap{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:900px){
  .stagger-wrap{grid-template-columns:1fr 1fr;gap:28px;align-items:start}
  .col-b{margin-top:72px}
}
.stagger-col{display:flex;flex-direction:column;gap:24px}
.lc-card{display:block;background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.lc-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D3DEDB}
.lc-card:hover .lc-title{color:var(--c-primary)}
.lc-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#DCE6E3}
.lc-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .45s ease}
.lc-card:hover .lc-media img{transform:scale(1.03)}
.lc-media .badge{position:absolute;top:12px;left:12px}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.6;letter-spacing:.02em}
.badge-live{background:var(--c-accent);color:#fff}
.badge-live .dot{width:6px;height:6px;border-radius:50%;background:#fff;display:inline-block}
.badge-soon{background:var(--c-primary);color:#fff}
.badge-replay{background:var(--c-primary-light);color:var(--c-primary-dark)}
.badge-plain{background:#F1F3F1;color:var(--c-muted)}
.badge-dur{position:absolute;right:12px;bottom:12px;background:rgba(12,31,28,.72);color:#fff;font-variant-numeric:tabular-nums}
.lc-body{padding:20px}
.lc-title{font-size:19px;font-weight:700;color:var(--c-ink);margin:10px 0 8px;line-height:1.5;transition:color .2s ease}
.lc-desc{color:var(--c-muted);font-size:15px;line-height:1.78;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.lc-meta{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:16px;padding-top:14px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-muted);font-variant-numeric:tabular-nums}
.lc-meta span{display:inline-flex;align-items:center;gap:6px}
.lc-more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;font-weight:600;color:var(--c-primary)}
.lc-card--plain .lc-body{padding:24px}
.lc-card--plain{background:linear-gradient(180deg,#fff 0%,#FBFCFB 100%)}

/* ---------- 交错图文 ---------- */
.alt-row{display:grid;gap:26px;align-items:center;margin-bottom:44px}
.alt-row:last-child{margin-bottom:0}
.alt-row img{width:100%;aspect-ratio:4/3;object-fit:cover;box-shadow:var(--sh-1)}
@media(min-width:900px){
  .alt-row{grid-template-columns:1fr 1fr;gap:56px}
  .alt-row.rev .alt-media{order:2}
}
.alt-tag{display:inline-block;font-size:12px;font-weight:600;color:var(--c-primary-dark);background:var(--c-primary-light);border-radius:999px;padding:3px 12px;margin-bottom:10px}
.points{margin-top:18px}
.points li{position:relative;padding-left:26px;margin-bottom:10px;color:var(--c-text);font-size:15px}
.points li::before{content:"\2713";position:absolute;left:0;top:0;color:var(--c-primary);font-weight:700}

/* ---------- 深色数据带 ---------- */
.band-dark{background:var(--c-ink);border-radius:var(--r-band);padding:38px 26px;color:#E4EFEC}
@media(min-width:768px){.band-dark{padding:46px 40px}}
.band-dark h2{color:#fff}
.band-dark .section-head p{color:#9FB6B1}
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
@media(min-width:900px){.stat-grid{grid-template-columns:repeat(4,1fr)}}
.stat-num{font-size:clamp(28px,3.4vw,38px);font-weight:800;color:#fff;font-variant-numeric:tabular-nums;line-height:1.2}
.stat-num em{font-style:normal;font-size:16px;font-weight:600;color:var(--c-yellow);margin-left:4px}
.stat-label{font-size:14px;color:#9FB6B1;margin-top:6px}

/* ---------- 订阅表单 ---------- */
.subscribe-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-band);padding:28px;box-shadow:var(--sh-1)}
@media(min-width:768px){.subscribe-card{padding:36px}}
.sub-grid{display:grid;gap:28px}
@media(min-width:900px){.sub-grid{grid-template-columns:1fr 1fr;align-items:center;gap:44px}}
.field-label{display:block;font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:8px}
.sub-form{display:flex;flex-wrap:wrap;gap:12px}
.sub-form input{flex:1 1 240px;min-height:48px;padding:0 16px;border:1px solid var(--c-line);border-radius:var(--r-btn);background:#fff;color:var(--c-text);transition:border-color .2s,box-shadow .2s}
.sub-form input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(15,122,107,.18)}
.form-note{font-size:13px;color:var(--c-muted);margin-top:10px}
.form-msg{display:none;margin-top:12px;font-size:14px;font-weight:500}
.form-msg.ok{display:block;color:var(--c-primary)}
.form-msg.err{display:block;color:var(--c-accent)}

/* ---------- FAQ ---------- */
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:border-color .2s ease}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;font-size:17px;font-weight:600;color:var(--c-ink);cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:20px;font-weight:400;color:var(--c-primary);transition:transform .25s ease;line-height:1}
.faq-item[open] summary{background:var(--c-primary-light)}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:16px 20px 20px;color:var(--c-muted);font-size:15px}

/* ---------- CTA 条 ---------- */
.cta-bar{background:var(--c-ink);border-radius:var(--r-band);padding:34px 26px;color:#E4EFEC;display:grid;gap:22px}
@media(min-width:768px){.cta-bar{grid-template-columns:1fr auto;align-items:center;padding:40px;gap:36px}}
.cta-bar h3{color:#fff;margin-bottom:8px;font-size:clamp(20px,2.4vw,26px)}
.cta-bar p{color:#A6BCB7;font-size:15px;max-width:620px}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--c-line);margin-top:64px;padding-top:52px}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px}}
.footer-brand p{color:var(--c-muted);font-size:14px;margin-top:12px;max-width:320px}
.footer-col h4{font-size:15px;margin-bottom:12px}
.footer-col a,.footer-col span{display:block;font-size:14px;color:var(--c-muted);padding:5px 0}
.footer-col a:hover{color:var(--c-primary)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;border-top:1px solid var(--c-line);margin-top:38px;padding:20px 0 24px;font-size:13px;color:var(--c-muted)}

/* roulang page: category3 */
:root{
  --main:#0F7A6B;
  --main-dark:#0A5A4F;
  --main-soft:#E6F2EF;
  --accent:#FF6B3D;
  --amber:#F2C14E;
  --ink:#0C1F1C;
  --text:#2A3B38;
  --muted:#6B7C79;
  --line:#E3E8E6;
  --bg:#F6F7F4;
  --card:#FFFFFF;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(12,31,28,.06);
  --shadow-2:0 12px 32px -12px rgba(12,31,28,.18);
  --container:1200px;
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:var(--nav-h);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--main);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--main-dark);}
h1,h2,h3,h4{color:var(--ink);margin:0;line-height:1.35;font-weight:700;letter-spacing:.2px;}
h1{font-size:clamp(30px,3.4vw,48px);font-weight:800;}
h2{font-size:clamp(26px,2.6vw,34px);font-weight:800;}
h3{font-size:clamp(18px,1.6vw,22px);}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--main);outline-offset:2px;border-radius:6px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
.container{max-width:var(--container);margin:0 auto;padding:0 20px;width:100%;}
@media (min-width:1024px){.container{padding:0 24px;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border:1px solid transparent;border-radius:var(--radius-btn);
  font-size:15px;font-weight:500;cursor:pointer;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--main);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--main-dark);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--main);border-color:var(--main);}
.btn-ghost:hover{background:var(--main-soft);color:var(--main-dark);transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--ink);border-color:#fff;}
.btn-light:hover{background:var(--main-soft);color:var(--main-dark);transform:translateY(-1px);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:#e5572c;color:#fff;transform:translateY(-1px);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:13px;font-weight:500;line-height:1.6;}
.badge-live{background:var(--accent);color:#fff;}
.badge-live::before{content:"";width:6px;height:6px;border-radius:50%;background:#fff;animation:pulse 1.6s infinite;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.35;}}
.badge-soft{background:var(--main-soft);color:var(--main-dark);}
.badge-dark{background:rgba(12,31,28,.72);color:#fff;}
.badge-amber{background:rgba(242,193,78,.22);color:#8a6410;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:#fff;transition:height .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 1px 0 var(--line),0 8px 24px -18px rgba(12,31,28,.35);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:var(--nav-h);gap:16px;}
.site-header.is-scrolled .nav-inner{height:56px;}
.brand{display:inline-flex;align-items:baseline;gap:4px;font-size:20px;font-weight:800;color:var(--ink);letter-spacing:.4px;}
.brand:hover{color:var(--main-dark);}
.brand .brand-sub{font-size:13px;font-weight:500;color:var(--muted);letter-spacing:2px;}
.nav-main{display:flex;align-items:center;gap:6px;}
.nav-link{position:relative;padding:8px 12px;font-size:15px;color:var(--text);border-radius:8px;transition:color .18s ease,background-color .18s ease;}
.nav-link:hover{color:var(--main-dark);background:var(--main-soft);}
.nav-link.is-active{color:var(--main-dark);font-weight:600;}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;background:var(--main);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--text);cursor:pointer;
  transition:border-color .18s ease,color .18s ease,background-color .18s ease;
}
.icon-btn:hover{border-color:var(--main);color:var(--main-dark);background:var(--main-soft);}
.icon-btn svg{width:18px;height:18px;}
.menu-btn{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;padding:10px;}
.menu-btn span{display:block;height:2px;background:var(--ink);border-radius:2px;margin:4px 0;transition:transform .2s ease,opacity .2s ease;}
.nav-search{display:none;border-top:1px solid var(--line);background:#fff;padding:14px 0;}
.nav-search.is-open{display:block;}
.nav-search form{display:flex;gap:10px;}
.nav-search input{
  flex:1;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:10px;font-size:15px;color:var(--text);background:#fff;
}
.nav-search input:focus{outline:none;border-color:var(--main);box-shadow:0 0 0 2px rgba(15,122,107,.16);}

@media (max-width:1023px){
  .menu-btn{display:block;}
  .nav-main{
    position:fixed;top:56px;left:0;right:0;bottom:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;padding:8px 20px 32px;overflow-y:auto;
    transform:translateX(-100%);opacity:0;visibility:hidden;
    transition:transform .26s ease,opacity .26s ease,visibility .26s;
    border-top:1px solid var(--line);
  }
  .nav-main.is-open{transform:translateX(0);opacity:1;visibility:visible;}
  .nav-link{height:48px;display:flex;align-items:center;border-bottom:1px solid var(--line);border-radius:0;font-size:16px;padding:0 4px;}
  .nav-link.is-active::after{display:none;}
  .nav-link.is-active{color:var(--main);}
}
@media (max-width:639px){
  .nav-actions .btn-sm{display:none;}
}

/* ---------- 通用区块 ---------- */
.section{padding:48px 0;}
@media (min-width:1024px){.section{padding:80px 0;}}
.section-head{max-width:760px;margin-bottom:32px;}
.section-head .eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:2px;color:var(--main);margin-bottom:12px;text-transform:uppercase;}
.section-head p{margin-top:12px;color:var(--muted);font-size:16px;}
.band-soft{background:var(--main-soft);}
.band-white{background:#fff;}
.band-ink{background:var(--ink);color:#E8EFED;}
.band-ink h2,.band-ink h3{color:#fff;}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ---------- 分类头部 ---------- */
.cat-hero{
  background:linear-gradient(180deg,#E6F2EF 0%,#F2F7F5 100%);
  padding:36px 0 56px;
  border-bottom:1px solid var(--line);
}
@media (min-width:1024px){.cat-hero{padding:48px 0 72px;}}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--main-dark);}
.crumb .sep{color:#B9C6C3;}
.cat-hero-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
@media (min-width:1024px){.cat-hero-grid{grid-template-columns:7fr 5fr;gap:48px;}}
.cat-hero h1{margin:14px 0 16px;}
.cat-hero .lead{font-size:17px;color:var(--text);max-width:640px;}
.hero-media{position:relative;border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-2);background:var(--ink);}
.hero-media img{width:100%;height:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}
@media (min-width:1024px){.hero-media img{aspect-ratio:4/3;}}
.hero-media .media-tag{position:absolute;left:14px;top:14px;}
.hero-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:28px;max-width:560px;}
@media (min-width:640px){.hero-stats{grid-template-columns:repeat(4,1fr);}}
.stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 14px;box-shadow:var(--shadow-1);}
.stat b{display:block;font-size:22px;font-weight:800;color:var(--main-dark);font-variant-numeric:tabular-nums;line-height:1.3;}
.stat span{font-size:13px;color:var(--muted);}

/* ---------- 时间轴 ---------- */
.timeline{list-style:none;margin:0;padding:0;position:relative;}
.timeline-item{position:relative;padding:0 0 32px 0;display:grid;grid-template-columns:56px 1fr;gap:18px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:"";position:absolute;left:27px;top:64px;bottom:0;width:1px;background:var(--line);
}
.timeline-item:last-child::before{display:none;}
.tl-num{
  width:56px;height:56px;border-radius:16px;background:#fff;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:800;color:var(--main);font-variant-numeric:tabular-nums;
  box-shadow:var(--shadow-1);transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.timeline-item:hover .tl-num{background:var(--main);color:#fff;border-color:var(--main);}
.tl-body{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease;}
.timeline-item:hover .tl-body{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.tl-head{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:10px;}
.tl-head h3{margin:0;}
.tl-body p{color:var(--muted);}
.tl-points{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:10px;}
.tl-points li{display:flex;gap:10px;font-size:15px;color:var(--text);}
.tl-points li i{color:var(--main);margin-top:6px;font-size:12px;}
.tl-meta{margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- 验收清单（编号序列） ---------- */
.check-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.check-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.check-grid{grid-template-columns:1fr 1fr 1fr;}}
.check-card{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius-card);
  padding:22px;transition:background-color .2s ease,transform .2s ease;
}
.check-card:hover{background:rgba(255,255,255,.1);transform:translateY(-2px);}
.check-card .idx{font-size:13px;font-weight:700;letter-spacing:2px;color:var(--amber);font-variant-numeric:tabular-nums;}
.check-card h3{color:#fff;margin:10px 0 10px;font-size:19px;}
.check-card p{color:#B9CBC7;font-size:15px;}

/* ---------- 场景：左右交错 ---------- */
.alt-row{display:grid;grid-template-columns:1fr;gap:24px;align-items:center;margin-bottom:40px;}
.alt-row:last-child{margin-bottom:0;}
@media (min-width:1024px){
  .alt-row{grid-template-columns:1fr 1fr;gap:48px;}
  .alt-row.reverse .alt-text{order:2;}
  .alt-row.reverse .alt-media{order:1;}
}
.alt-media img{width:100%;aspect-ratio:4/3;object-fit:cover;box-shadow:var(--shadow-2);}
.alt-text h3{margin-bottom:12px;}
.alt-text p{color:var(--muted);}
.feature-list{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:10px;}
.feature-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;}
.feature-list li i{color:var(--main);margin-top:6px;font-size:12px;}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.card-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr);}}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D3E2DE;}
.card h3{margin-bottom:10px;font-size:19px;}
.card p{color:var(--muted);font-size:15px;}
.card .ico{
  width:44px;height:44px;border-radius:12px;background:var(--main-soft);color:var(--main-dark);
  display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px;
}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:background-color .2s ease,border-color .2s ease;}
.faq-item.is-open{background:var(--main-soft);border-color:#CFE4DF;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q i{color:var(--main);transition:transform .24s ease;font-size:14px;}
.faq-item.is-open .faq-q i{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a p{padding:0 20px 20px;color:var(--text);font-size:15px;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink);border-radius:20px;padding:32px;color:#E8EFED;
  display:grid;grid-template-columns:1fr;gap:20px;align-items:center;
}
@media (min-width:1024px){.cta-band{grid-template-columns:1fr auto;padding:40px 44px;gap:32px;}}
.cta-band h2{color:#fff;margin-bottom:10px;}
.cta-band p{color:#B9CBC7;font-size:15px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
@media (max-width:639px){.cta-actions{flex-direction:column;}.cta-actions .btn{width:100%;}}

/* ---------- 订阅表单 ---------- */
.subscribe-form{display:grid;grid-template-columns:1fr;gap:12px;max-width:620px;margin-top:20px;}
@media (min-width:768px){.subscribe-form{grid-template-columns:1fr auto;}}
.subscribe-form input{
  height:48px;padding:0 16px;border:1px solid var(--line);border-radius:10px;font-size:15px;background:#fff;color:var(--text);
}
.subscribe-form input:focus{outline:none;border-color:var(--main);box-shadow:0 0 0 2px rgba(15,122,107,.16);}
.form-hint{font-size:13px;color:var(--muted);margin-top:10px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);margin-top:0;padding:48px 0 24px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:28px;}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}}
.footer-brand p{color:var(--muted);font-size:14px;margin-top:12px;max-width:320px;}
.footer-col h4{font-size:15px;margin-bottom:14px;}
.footer-col a,.footer-col span{display:block;font-size:14px;color:var(--muted);padding:5px 0;transition:color .18s ease;}
.footer-col a:hover{color:var(--main-dark);}
.footer-bottom{
  margin-top:36px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;font-size:13px;color:var(--muted);
}