/* roulang page: index */
:root{
  --brand:#1E4B45;
  --brand-dark:#143530;
  --brand-light:#2E6B60;
  --sand:#E7DCCB;
  --sand-light:#F3EDE3;
  --accent:#C8622F;
  --accent-light:#E08A57;
  --accent-dark:#B4552A;
  --bg:#FBFAF7;
  --surface:#FFFFFF;
  --ink:#1C2320;
  --text:#37403C;
  --muted:#6B7671;
  --line:#E3E0D8;
  --divider:#EFEBE3;
  --ok:#2F7D5A;
  --warn:#B4862B;
  --err:#C0392B;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(28,35,32,.04);
  --sh-2:0 14px 34px -14px rgba(28,35,32,.18);
  --sh-3:0 22px 48px -20px rgba(28,35,32,.26);
  --pad-sec:88px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.95;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p,figure{margin:0}
h1,h2,h3,h4{color:var(--ink);letter-spacing:-.01em}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 4px rgba(200,98,47,.25);border-radius:6px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 18px;z-index:999}
.skip-link:focus{left:12px;top:12px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
@media (min-width:1440px){.container{max-width:1280px}}
.section{padding:var(--pad-sec) 0}
.section-sand{background:var(--sand-light)}
.section-dark{background:var(--brand-dark);color:rgba(255,255,255,.78)}
.section-dark h2,.section-dark h3,.section-dark h4{color:#fff}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:44px}
.sec-head-center{flex-direction:column;align-items:center;text-align:center}
.sec-kicker{display:inline-block;font-size:14px;letter-spacing:.08em;color:var(--accent);font-weight:600;margin-bottom:10px}
.sec-title{font-size:30px;line-height:1.35;font-weight:700}
.sec-desc{font-size:16px;color:var(--muted);max-width:560px;line-height:1.85}
.section-dark .sec-desc{color:rgba(255,255,255,.66)}
.sec-link{font-size:15px;color:var(--brand);font-weight:600;white-space:nowrap;border-bottom:2px solid transparent;padding-bottom:2px}
.sec-link:hover{color:var(--accent);border-bottom-color:var(--accent)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-sm);
  font-size:16px;font-weight:600;letter-spacing:.02em;transition:all .22s ease;white-space:nowrap}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 22px -12px rgba(200,98,47,.75)}
.btn-accent:hover{background:var(--accent-dark);transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(200,98,47,.85)}
.btn-accent:active{transform:translateY(0)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-light);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-outline{border:1px solid var(--brand);color:var(--brand);background:transparent}
.btn-outline:hover{background:var(--sand-light);border-color:var(--brand-light);color:var(--brand-light)}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:var(--r-sm)}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:14px;font-weight:500;line-height:1}
.badge-sand{background:var(--sand);color:var(--brand)}
.badge-solid{background:var(--brand);color:#fff}
.badge-line{background:#fff;border:1px solid var(--line);color:var(--muted)}
.badge-line:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:120;width:100%}
.brandbar{background:var(--brand-dark);color:#fff;transition:box-shadow .25s ease}
.brandbar-inner{display:flex;align-items:center;gap:26px;height:56px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:32px;height:32px;border-radius:9px;background:var(--accent);color:#fff;display:grid;place-items:center;
  font-size:16px;font-weight:700;letter-spacing:0}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.01em;color:#fff}
.trendbar{flex:1;min-width:0;display:flex;align-items:center;gap:14px;overflow:hidden}
.trend-label{font-size:13px;color:rgba(255,255,255,.5);flex-shrink:0}
.trend-track{display:flex;align-items:center;gap:18px;overflow-x:auto;scrollbar-width:none;white-space:nowrap}
.trend-track::-webkit-scrollbar{display:none}
.trend-track a{font-size:14px;color:rgba(255,255,255,.68);flex-shrink:0}
.trend-track a:hover{color:var(--accent-light)}
.brand-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.search-wrap{display:flex;align-items:center;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-sm);height:38px;padding:0 10px;transition:all .22s ease}
.search-wrap:focus-within{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.4)}
.search-wrap input{background:transparent;border:0;color:#fff;width:118px;font-size:14px;outline:none}
.search-wrap input::placeholder{color:rgba(255,255,255,.45)}
.search-wrap button{color:rgba(255,255,255,.72);display:grid;place-items:center;width:26px;height:26px}
.search-wrap button:hover{color:var(--accent-light)}
.menu-toggle{display:none;width:38px;height:38px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.18);place-items:center}
.menu-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;margin:3px auto}
.channelbar{background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:44px}
.channel-list{display:flex;align-items:center;gap:30px;overflow-x:auto;scrollbar-width:none}
.channel-list::-webkit-scrollbar{display:none}
.channel-list a{position:relative;display:inline-flex;align-items:center;height:44px;font-size:15px;color:var(--ink);
  white-space:nowrap;font-weight:500}
.channel-list a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--brand);
  transform:scaleX(0);transform-origin:center;transition:transform .22s ease}
.channel-list a:hover{color:var(--brand-light)}
.channel-list a.active{color:var(--brand);font-weight:700}
.channel-list a.active::after{transform:scaleX(1)}
.channel-extra{display:flex;align-items:center;gap:16px;font-size:14px;color:var(--muted)}
.channel-extra a:hover{color:var(--accent)}
.site-header.is-stuck .brandbar{box-shadow:0 8px 24px -14px rgba(0,0,0,.5)}
.site-header.is-stuck .channelbar{box-shadow:0 10px 24px -18px rgba(28,35,32,.4)}
.site-header.is-stuck .brandbar-inner,.site-header.is-stuck .channel-inner{height:50px}
.site-header.is-stuck .channel-list a{height:50px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--brand-dark)}
.hero-bg{position:absolute;inset:0;background-image:linear-gradient(120deg,rgba(20,53,48,.9) 0%,rgba(20,53,48,.68) 52%,rgba(30,75,69,.5) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;transform:scale(1.02)}
.hero-inner{position:relative;z-index:2;padding:104px 0 88px;display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:56px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:#fff;font-size:14px;margin-bottom:22px}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--accent-light);display:block}
.hero h1{font-size:clamp(28px,4.4vw,44px);line-height:1.28;color:#fff;font-weight:700;max-width:14em}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.95;color:rgba(255,255,255,.78);max-width:34em}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.btn-ghost{border:1px solid rgba(255,255,255,.34);color:#fff;background:rgba(255,255,255,.06)}
.btn-ghost:hover{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.6);transform:translateY(-1px)}
.hero-stats{margin-top:46px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;max-width:620px}
.stat{border-top:1px solid rgba(255,255,255,.2);padding-top:16px}
.stat-num{font-size:30px;font-weight:700;color:var(--accent-light);line-height:1.2;letter-spacing:-.01em}
.stat-label{font-size:14px;color:rgba(255,255,255,.66);margin-top:4px}
.hero-panel{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-lg);
  padding:26px;backdrop-filter:blur(10px)}
.hero-panel h3{color:#fff;font-size:18px;margin-bottom:16px}
.hero-panel-list{display:grid;gap:14px}
.hero-panel-list li{display:flex;gap:12px;font-size:15px;color:rgba(255,255,255,.78);line-height:1.8}
.hero-panel-list b{width:22px;height:22px;flex-shrink:0;border-radius:7px;background:rgba(200,98,47,.9);color:#fff;
  font-size:13px;display:grid;place-items:center;font-weight:600;margin-top:3px}
.hero-thumb{margin-top:20px;border-radius:var(--r-md);overflow:hidden;border:1px solid rgba(255,255,255,.16)}
.hero-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover}

/* ---------- 价值主张 ---------- */
.value-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.value-card{background:var(--surface);border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;position:relative;overflow:hidden}
.value-card:nth-child(2){margin-top:34px}
.value-card:nth-child(4){margin-top:34px}
.value-card::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:linear-gradient(90deg,var(--brand),var(--sand));opacity:0;transition:opacity .25s ease}
.value-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.value-card:hover::before{opacity:1}
.value-icon{width:46px;height:46px;border-radius:12px;background:var(--sand-light);border:1px solid var(--line);
  display:grid;place-items:center;color:var(--brand);margin-bottom:20px}
.value-card h3{font-size:22px;line-height:1.45;font-weight:600;margin-bottom:12px}
.value-card p{font-size:16px;color:var(--muted);line-height:1.9}
.value-card .vlink{display:inline-block;margin-top:16px;font-size:15px;font-weight:600;color:var(--brand)}
.value-card .vlink:hover{color:var(--accent)}

/* ---------- 功能分组 ---------- */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:36px 0}
.feature-row + .feature-row{border-top:1px solid var(--line)}
.feature-media{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2)}
.feature-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 1.2s ease}
.feature-media:hover img{transform:scale(1.03)}
.feature-body .badge{margin-bottom:16px}
.feature-body h3{font-size:22px;line-height:1.45;font-weight:600;margin-bottom:14px}
.feature-body p{color:var(--muted);font-size:16px;line-height:1.9}
.dot-list{margin-top:20px;display:grid;gap:12px}
.dot-list li{position:relative;padding-left:20px;font-size:16px;color:var(--text);line-height:1.85}
.dot-list li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:2px;background:var(--brand)}
.feature-body .vlink{display:inline-block;margin-top:22px;font-size:15px;font-weight:600;color:var(--brand)}
.feature-body .vlink:hover{color:var(--accent)}
.feature-row.reverse .feature-media{order:2}

/* ---------- 场景 ---------- */
.scene-tabs{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-bottom:38px}
.scene-tab{height:40px;padding:0 20px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;
  font-size:15px;color:var(--muted);transition:all .22s ease}
.scene-tab:hover{border-color:var(--brand-light);color:var(--brand-light)}
.scene-tab.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.scene-panel{display:none}
.scene-panel.active{display:block;animation:fadeUp .3s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.scene-layout{display:grid;grid-template-columns:1.35fr 1fr;grid-template-rows:auto auto;gap:24px}
.scene-card{background:#fff;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.scene-card.big{grid-row:span 2}
.scene-card img{width:100%;object-fit:cover;transition:transform 1.2s ease}
.scene-card.big img{aspect-ratio:16/11}
.scene-card.small img{aspect-ratio:16/9}
.scene-card:hover img{transform:scale(1.03)}
.scene-body{padding:24px 26px 26px}
.scene-body h4{font-size:18px;font-weight:600;margin-bottom:10px;line-height:1.5}
.scene-body p{font-size:15px;color:var(--muted);line-height:1.85}
.scene-body .badge{margin-bottom:12px}

/* ---------- 案例 ---------- */
.case-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.case-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-lg);padding:30px;
  transition:border-color .25s ease,transform .25s ease}
.case-card:hover{border-color:rgba(255,255,255,.34);transform:translateY(-2px)}
.case-top{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.case-avatar{width:44px;height:44px;border-radius:12px;background:var(--brand);color:#fff;display:grid;place-items:center;
  font-size:16px;font-weight:700;flex-shrink:0}
.case-name{font-size:16px;color:#fff;font-weight:600}
.case-role{font-size:13px;color:rgba(255,255,255,.55)}
.case-quote{font-size:16px;line-height:1.9;color:rgba(255,255,255,.8)}
.case-metrics{display:flex;gap:40px;margin-top:24px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14)}
.case-metrics b{display:block;font-size:24px;color:var(--accent-light);font-weight:700;line-height:1.3}
.case-metrics span{font-size:13px;color:rgba(255,255,255,.58)}

/* ---------- 服务方案 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;align-items:start}
.price-card{background:#fff;border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh-1);position:relative;
  transition:transform .25s ease,box-shadow .25s ease}
.price-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.price-card.featured{border:1px solid var(--brand);box-shadow:var(--sh-2);transform:translateY(-10px)}
.price-badge{position:absolute;top:-13px;right:26px;background:var(--accent);color:#fff;font-size:13px;font-weight:600;
  height:26px;padding:0 14px;border-radius:var(--r-pill);display:inline-flex;align-items:center}
.price-name{font-size:20px;font-weight:700;color:var(--ink)}
.price-desc{font-size:14px;color:var(--muted);margin-top:6px;line-height:1.8}
.price-amount{margin:22px 0 6px;display:flex;align-items:baseline;gap:6px;color:var(--brand-dark)}
.price-amount b{font-size:38px;font-weight:700;letter-spacing:-.02em;line-height:1}
.price-amount small{font-size:15px;color:var(--muted)}
.price-note{font-size:13px;color:var(--muted);margin-bottom:22px}
.price-list{display:grid;gap:12px;padding:22px 0;border-top:1px solid var(--divider)}
.price-list li{display:flex;gap:10px;font-size:15px;line-height:1.8;color:var(--text)}
.price-list svg{flex-shrink:0;margin-top:5px;color:var(--brand)}
.price-card .btn{width:100%;margin-top:22px}
.price-foot{text-align:center;font-size:14px;color:var(--muted);margin-top:32px}

/* ---------- 最新信息 ---------- */
.news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-card{background:#fff;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.news-cover{overflow:hidden}
.news-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 1.2s ease}
.news-card:hover .news-cover img{transform:scale(1.03)}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.news-badge{margin-bottom:14px}
.news-title{font-size:18px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;transition:color .2s ease}
.news-card:hover .news-title{color:var(--brand)}
.news-sum{margin-top:10px;font-size:15px;color:var(--muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;
  -webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted)}
.news-meta a{color:var(--brand);font-weight:600}
.news-meta a:hover{color:var(--accent)}
.empty-state{background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);padding:56px 24px;text-align:center}
.empty-state svg{color:var(--sand);margin:0 auto 16px}
.empty-state p{font-size:15px;color:var(--muted)}
.empty-state a{display:inline-block;margin-top:14px;font-size:15px;font-weight:600;color:var(--brand)}
.empty-state a:hover{color:var(--accent)}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto;display:grid;gap:12px}
.faq-item{background:#fff;border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden;transition:box-shadow .25s ease}
.faq-item:hover{box-shadow:var(--sh-2)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:60px;padding:18px 26px;
  text-align:left;font-size:17px;font-weight:600;color:var(--ink);transition:color .2s ease}
.faq-q:hover{color:var(--brand)}
.faq-icon{width:26px;height:26px;flex-shrink:0;border-radius:8px;background:var(--sand-light);color:var(--brand);
  display:grid;place-items:center;font-size:17px;font-weight:600;transition:transform .25s ease,background .25s ease}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--accent);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a-inner{padding:0 26px 22px;font-size:15px;line-height:1.9;color:var(--muted);border-left:3px solid transparent}
.faq-item.open .faq-a-inner{border-left-color:var(--accent)}
.faq-item.open .faq-a-inner{padding-left:23px}

/* ---------- CTA 带 ---------- */
.cta-band{position:relative;background:var(--brand);overflow:hidden;border-radius:0}
.cta-band::after{content:"";position:absolute;right:-80px;top:-60px;width:420px;height:320px;
  background:repeating-linear-gradient(115deg,rgba(231,220,203,.22) 0 12px,transparent 12px 34px);opacity:.6}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;padding:62px 0;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:30px;line-height:1.35}
.cta-inner p{color:rgba(255,255,255,.76);font-size:16px;margin-top:10px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.72);padding:66px 0 0}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px}
.footer-brand .logo-mark{margin-right:0}
.footer-brand-row{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand-row span{font-size:18px;font-weight:700;color:#fff}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);max-width:30em}
.footer-contact{margin-top:18px;display:grid;gap:8px;font-size:14px}
.footer-contact li{color:rgba(255,255,255,.6)}
.footer-contact b{color:rgba(255,255,255,.85);font-weight:500}
.footer-col h4{font-size:15px;color:#fff;font-weight:600;margin-bottom:18px}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.62)}
.footer-col a:hover{color:var(--accent-light)}
.footer-tags{display:flex;flex-wrap:wrap;gap:9px}
.footer-tags a{font-size:13px;padding:6px 13px;border-radius:var(--r-pill);background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.12);color:rgba(255,255,255,.72)}
.footer-tags a:hover{background:rgba(255,255,255,.16);color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;align-items:center;
  justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.62)}
.footer-bottom-links{display:flex;gap:22px;flex-wrap:wrap}
.footer-bottom-links a:hover{color:var(--accent-light)}

/* ---------- 回到顶部 ---------- */
.to-top{position:fixed;right:26px;bottom:26px;width:44px;height:44px;border-radius:50%;background:var(--brand);color:#fff;
  display:grid;place-items:center;box-shadow:var(--sh-2);opacity:0;visibility:hidden;transition:all .28s ease;z-index:90}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{background:var(--accent);transform:translateY(-2px)}

/* ---------- 移动端抽屉 ---------- */
.drawer{position:fixed;inset:0;background:var(--brand-dark);z-index:200;transform:translateX(100%);transition:transform .3s ease;
  display:flex;flex-direction:column;padding:18px 20px 26px;overflow-y:auto}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:38px;height:38px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.2);color:#fff;
  display:grid;place-items:center;font-size:20px}
.drawer-search{display:flex;align-items:center;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  border-radius:var(--r-sm);height:44px;padding:0 14px;margin-bottom:24px}
.drawer-search input{flex:1;background:transparent;border:0;outline:none;color:#fff;font-size:15px}
.drawer-search input::placeholder{color:rgba(255,255,255,.45)}
.drawer-nav{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.drawer-nav a{padding:14px 16px;border-radius:var(--r-sm);background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
  color:#fff;font-size:15px}
.drawer-nav a:hover{background:rgba(255,255,255,.14)}
.drawer-nav a.active{border-color:var(--accent);color:var(--accent-light)}
.drawer-cta{margin-top:auto;padding-top:26px;display:grid;gap:12px}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--pad-sec:64px}
  .container{padding:0 24px}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:80px 0 68px}
  .hero-panel{max-width:560px}
  .footer-top{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:991px){
  .value-grid{grid-template-columns:1fr}
  .value-card:nth-child(2),.value-card:nth-child(4){margin-top:0}
  .feature-row{grid-template-columns:1fr;gap:26px}
  .feature-row.reverse .feature-media{order:0}
  .scene-layout{grid-template-columns:1fr;grid-template-rows:none}
  .scene-card.big{grid-row:auto}
  .case-grid{grid-template-columns:1fr}
  .price-grid{grid-template-columns:1fr}
  .price-card.featured{transform:none}
  .news-list{grid-template-columns:1fr 1fr}
  .trendbar{display:none}
}
@media (max-width:768px){
  :root{--pad-sec:52px}
  .container{padding:0 16px}
  body{font-size:16px}
  .channelbar{display:none}
  .menu-toggle{display:grid}
  .search-wrap{display:none}
  .brandbar-inner{justify-content:space-between;height:56px}
  .hero-inner{padding:64px 0 56px}
  .hero-stats{grid-template-columns:1fr;gap:16px;max-width:100%}
  .hero-panel{padding:22px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px}
  .sec-title{font-size:24px}
  .news-list{grid-template-columns:1fr}
  .value-card{padding:26px}
  .faq-q{font-size:16px;padding:16px 20px}
  .faq-a-inner{padding:0 20px 20px}
  .faq-item.open .faq-a-inner{padding-left:17px}
  .cta-inner{padding:50px 0}
  .cta-inner h2{font-size:24px}
  .footer-top{grid-template-columns:1fr;gap:30px;padding-bottom:38px}
  .to-top{right:16px;bottom:16px}
  .case-metrics{gap:26px}
}
@media (max-width:520px){
  .hero h1{font-size:26px}
  .hero-cta .btn{width:100%}
  .cta-actions .btn{width:100%}
  .price-amount b{font-size:32px}
  .logo-text{font-size:16px}
  .stat-num{font-size:26px}
}

/* roulang page: article */
:root{
  --brand:#1E4B45;
  --brand-dark:#143530;
  --brand-light:#2E6B60;
  --sand:#E7DCCB;
  --sand-light:#F3EDE3;
  --accent:#C8622F;
  --accent-light:#E08A57;
  --bg:#FBFAF7;
  --card:#FFFFFF;
  --ink:#1C2320;
  --text:#37403C;
  --muted:#6B7671;
  --line:#E3E0D8;
  --divider:#EFEBE3;
  --ok:#2F7D5A;
  --warn:#B4862B;
  --err:#C0392B;
  --r-lg:18px;
  --r-sm:10px;
  --r-img:14px;
  --shadow-1:0 1px 2px rgba(28,35,32,.04);
  --shadow-2:0 14px 34px -14px rgba(28,35,32,.18);
  --sp-block:88px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.95;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
a:hover{color:var(--accent)}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:0}
h1{font-size:clamp(28px,4.4vw,44px);line-height:1.28;font-weight:700}
h2{font-size:30px;line-height:1.35;font-weight:700}
h3{font-size:22px;line-height:1.45;font-weight:600}
h4{font-size:18px;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;cursor:pointer}
input,button,a{outline-offset:3px}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;box-shadow:0 0 0 4px rgba(200,98,47,.25)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-sm);border:1px solid transparent;
  font-size:16px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 24px -14px rgba(200,98,47,.9)}
.btn-primary:hover{background:#B4552A;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--sand-light);border-color:var(--brand-dark);color:var(--brand-dark)}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:var(--r-sm)}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:14px;line-height:1;letter-spacing:.01em;white-space:nowrap;
}
.badge-cat{background:var(--sand);color:var(--brand)}
.badge-solid{background:var(--brand);color:#fff}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--text);font-size:14px;
}
.tag:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;box-shadow:0 1px 0 rgba(227,224,216,.9)}
head-brand,.head-brand{display:block}
.head-brand{background:var(--brand-dark);color:#fff}
.brand-inner{display:flex;align-items:center;gap:22px;min-height:56px}
.logo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;letter-spacing:.01em}
.logo:hover{color:#fff}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:9px;background:var(--accent);color:#fff;font-size:16px;font-weight:700;
}
.logo-text{white-space:nowrap}
.hot-strip{display:flex;align-items:center;gap:10px;min-width:0;overflow:hidden}
.hot-label{font-size:13px;color:rgba(255,255,255,.6);border-right:1px solid rgba(255,255,255,.2);padding-right:10px;white-space:nowrap}
.hot-track{display:flex;gap:18px;overflow-x:auto;scrollbar-width:none;white-space:nowrap}
.hot-track::-webkit-scrollbar{display:none}
.hot-track a{font-size:14px;color:rgba(255,255,255,.78)}
.hot-track a:hover{color:#fff}
.head-search{display:flex;align-items:center;gap:0;margin-left:auto;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);border-radius:999px;height:34px;padding:0 6px 0 14px}
.head-search input{
  width:150px;background:transparent;border:0;color:#fff;font-size:14px;height:30px;
}
.head-search input::placeholder{color:rgba(255,255,255,.55)}
.head-search input:focus{outline:none}
.head-search button{width:28px;height:28px;border:0;border-radius:50%;background:var(--accent);display:inline-flex;align-items:center;justify-content:center}
.head-search button svg{width:14px;height:14px;stroke:#fff;fill:none;stroke-width:2}
.head-cta{flex-shrink:0}
.menu-toggle{
  display:none;width:40px;height:34px;border:1px solid rgba(255,255,255,.25);border-radius:8px;background:transparent;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.menu-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px}
.channelbar{background:#fff;border-bottom:1px solid var(--line)}
.channel-inner{display:flex;align-items:center;gap:20px;min-height:44px}
.channel-list{display:flex;align-items:center;gap:26px}
.channel-list a{
  display:inline-block;position:relative;padding:11px 0;font-size:15px;color:var(--ink);font-weight:500;
}
.channel-list a:hover{color:var(--brand)}
.channel-list a.active{color:var(--brand);font-weight:600}
.channel-list a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:3px;border-radius:2px;background:var(--brand);
}
.channel-extra{margin-left:auto;display:flex;align-items:center;gap:18px}
.channel-extra a{font-size:13px;color:var(--muted)}
.channel-extra a:hover{color:var(--accent)}
.mobile-drawer{display:none}

/* ---------- banner ---------- */
.page-banner{
  position:relative;overflow:hidden;color:#fff;
  background-image:linear-gradient(120deg,rgba(20,53,48,.9),rgba(30,75,69,.72)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.page-banner::after{
  content:"";position:absolute;right:-80px;bottom:-120px;width:320px;height:320px;
  background:radial-gradient(circle,rgba(200,98,47,.34),transparent 65%);
}
.banner-inner{position:relative;z-index:2;padding:34px 32px 52px}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:rgba(255,255,255,.68);margin-bottom:22px}
.breadcrumb a{color:rgba(255,255,255,.82)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:rgba(255,255,255,.95)}
.article-head .badge-cat{background:rgba(255,255,255,.16);color:#fff;margin-bottom:16px}
.page-banner h1{color:#fff;max-width:24ch;margin-bottom:18px}
.article-meta{display:flex;flex-wrap:wrap;gap:12px;align-items:center;font-size:13px;color:rgba(255,255,255,.72)}
.article-meta .divider{width:1px;height:12px;background:rgba(255,255,255,.3)}

/* ---------- layout ---------- */
main{display:block}
.article-wrap{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start;padding:56px 0 0}
.article-body{max-width:820px}
.article-body h2{
  font-size:22px;margin:2em 0 .7em;padding-left:14px;border-left:4px solid var(--brand);line-height:1.45;
}
.article-body h3{font-size:19px;margin:1.6em 0 .6em}
.article-body p{margin:0 0 1.1em}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:0}
.article-body li{position:relative;padding-left:20px;margin-bottom:.5em;line-height:1.9}
.article-body ul>li::before{
  content:"";position:absolute;left:2px;top:.78em;width:7px;height:7px;border-radius:2px;background:var(--brand);
}
.article-body ol{counter-reset:li}
.article-body ol>li::before{
  counter-increment:li;content:counter(li);position:absolute;left:0;top:0;
  width:20px;font-size:14px;font-weight:700;color:var(--accent);line-height:1.9;
}
.article-body blockquote{
  margin:1.6em 0;padding:20px 28px;background:var(--sand-light);
  border-left:3px solid var(--accent);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--text);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{margin:1.6em 0;width:100%}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body a{border-bottom:1px solid rgba(30,75,69,.35)}
.article-body a:hover{border-bottom-color:var(--accent)}
.article-body strong{color:var(--ink)}
.article-body table{width:100%;border-collapse:separate;border-spacing:0;margin:1.6em 0;font-size:15px;border-radius:12px;overflow:hidden;border:1px solid var(--line)}
.article-body th{background:var(--brand);color:#fff;text-align:left;padding:12px 16px;font-weight:600}
.article-body td{padding:12px 16px;border-top:1px solid var(--divider)}
.article-body tbody tr:nth-child(even){background:var(--sand-light)}
.article-body hr{border:0;border-top:1px solid var(--divider);margin:2.4em 0}
.empty-state{
  padding:56px 32px;text-align:center;background:var(--card);border-radius:var(--r-lg);box-shadow:var(--shadow-1);
}
.empty-state p{font-size:15px;color:var(--muted);margin-bottom:14px}

.article-side{position:sticky;top:120px;display:grid;gap:20px}
.side-card{background:var(--card);border-radius:var(--r-lg);padding:22px;box-shadow:var(--shadow-1)}
.side-card h4{margin-bottom:12px;font-size:16px}
.side-card ul{display:grid;gap:10px}
.side-card li a{font-size:15px;color:var(--text)}
.side-card li a:hover{color:var(--accent)}
.side-card p{font-size:14px;line-height:1.8;color:var(--muted);margin:0}
.side-card-dark{background:var(--brand-dark);color:#fff}
.side-card-dark h4{color:#fff}
.side-card-dark p{color:rgba(255,255,255,.72)}
.side-card-dark .btn{margin-top:14px;width:100%}

/* ---------- blocks ---------- */
.section{padding:var(--sp-block) 0}
.section-tight{padding:56px 0 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;gap:16px;margin-bottom:36px}
.section-head h2{margin-bottom:6px}
.section-head p{color:var(--muted);font-size:15px;margin:0;max-width:62ch}
.section-head .head-link{margin-left:auto;font-size:14px;font-weight:600}
.sand-bg{background:var(--sand-light)}
.deep-bg{background:var(--brand-dark);color:rgba(255,255,255,.78)}
.deep-bg h2,.deep-bg h3,.deep-bg h4{color:#fff}

.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:44px 0 0;padding-top:28px;border-top:1px solid var(--divider)}
.tag-row .label{font-size:14px;color:var(--muted);margin-right:6px}

.news-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{
  display:flex;flex-direction:column;background:var(--card);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.news-thumb{overflow:hidden;border-radius:var(--r-img);margin-bottom:18px;aspect-ratio:16/10;background:var(--sand-light)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s ease}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-card .badge-cat{align-self:flex-start;margin-bottom:14px}
.news-card h4{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:10px;
}
.news-card:hover h4{color:var(--brand)}
.news-card p{
  font-size:15px;color:var(--muted);line-height:1.8;margin:0 0 18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);margin-top:auto}
.news-meta .read{color:var(--brand);font-weight:600}

.cta-band{background:var(--brand);color:#fff;position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(115deg,rgba(231,220,203,.12) 0 2px,transparent 2px 34px);
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;gap:26px;padding:52px 32px}
.cta-inner h2{color:#fff;margin-bottom:6px;font-size:26px}
.cta-inner p{margin:0;font-size:15px;color:rgba(255,255,255,.78);max-width:56ch}
.cta-inner .btn{margin-left:auto}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-brand-row{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);margin:0 0 18px;max-width:38ch}
.footer-contact{display:grid;gap:8px;font-size:14px;color:rgba(255,255,255,.66)}
.footer-contact b{color:rgba(255,255,255,.86);font-weight:600}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.7)}
.footer-col a:hover{color:#fff}
.footer-tags{display:flex;flex-wrap:wrap;gap:10px}
.footer-tags a{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  background:rgba(255,255,255,.1);font-size:13px;color:rgba(255,255,255,.82);
}
.footer-tags a:hover{background:rgba(255,255,255,.18);color:#fff}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.14);padding:22px 0 28px;font-size:13px;color:rgba(255,255,255,.62);
}
.footer-bottom-links{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom-links a{color:rgba(255,255,255,.62);font-size:13px}
.footer-bottom-links a:hover{color:#fff}

.to-top{
  position:fixed;right:24px;bottom:28px;width:44px;height:44px;border-radius:50%;border:0;
  background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-2);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease,transform .2s ease;
  z-index:70;
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{background:var(--brand-light);transform:translateY(-2px)}
.to-top svg{width:18px;height:18px;stroke:#fff;fill:none;stroke-width:2}

@media (max-width:1200px){
  .article-wrap{grid-template-columns:minmax(0,1fr);gap:36px}
  .article-side{position:static;grid-template-columns:repeat(2,minmax(0,1fr));display:grid}
}
@media (max-width:992px){
  :root{--sp-block:64px}
  .container{padding:0 24px}
  .banner-inner{padding:28px 24px 44px}
  .news-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-top{grid-template-columns:1.4fr 1fr 1fr}
  .hot-strip{display:none}
}
@media (max-width:768px){
  :root{--sp-block:52px}
  body{font-size:16px;line-height:1.9}
  .container{padding:0 16px}
  .brand-inner{gap:12px}
  .menu-toggle{display:flex}
  .head-search{display:none}
  .head-cta{display:none}
  .channelbar{display:none}
  .mobile-drawer{
    display:none;background:#fff;border-top:1px solid var(--line);padding:18px 16px 22px;
  }
  .mobile-drawer.open{display:block}
  .mobile-drawer .drawer-title{font-size:13px;color:var(--muted);margin-bottom:12px}
  .mobile-drawer ul{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .mobile-drawer ul a{
    display:block;padding:12px 14px;background:var(--sand-light);border-radius:var(--r-sm);
    font-size:15px;color:var(--ink);
  }
  .mobile-drawer .drawer-cta{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px}
  .banner-inner{padding:22px 16px 36px}
  .breadcrumb .current{max-width:30ch}
  .article-wrap{padding:36px 0 0}
  .article-side{grid-template-columns:minmax(0,1fr)}
  .news-list{grid-template-columns:minmax(0,1fr)}
  .cta-inner{padding:40px 16px;flex-direction:column;align-items:flex-start}
  .cta-inner .btn{margin-left:0}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px;padding-bottom:32px}
  .footer-brand{grid-column:1 / -1}
  .section-head{flex-direction:column;align-items:flex-start}
  .section-head .head-link{margin-left:0}
}
@media (max-width:520px){
  h1{font-size:26px}
  h2{font-size:22px}
  h3{font-size:19px}
  .logo-text{font-size:15px}
  .footer-top{grid-template-columns:minmax(0,1fr)}
  .mobile-drawer ul{grid-template-columns:minmax(0,1fr)}
  .mobile-drawer .drawer-cta{grid-template-columns:minmax(0,1fr)}
  .news-card{padding:18px}
  .article-body table{font-size:14px}
}

/* roulang page: category1 */
:root{
  --c-main:#1E4B45;
  --c-main-d:#143530;
  --c-main-l:#2E6B60;
  --c-sand:#E7DCCB;
  --c-sand-l:#F3EDE3;
  --c-accent:#C8622F;
  --c-accent-l:#E08A57;
  --bg:#FBFAF7;
  --card:#FFFFFF;
  --dark:#143530;
  --ink:#1C2320;
  --text:#37403C;
  --muted:#6B7671;
  --line:#E3E0D8;
  --split:#EFEBE3;
  --ok:#2F7D5A;
  --warn:#B4862B;
  --err:#C0392B;
  --r-lg:18px;
  --r-sm:10px;
  --r-img:14px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(28,35,32,.04);
  --sh-2:0 14px 34px -14px rgba(28,35,32,.18);
  --w:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.95;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-main);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:2px}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(28px,4.4vw,44px);line-height:1.28}
h2{font-size:30px;line-height:1.35}
h3{font-size:22px;line-height:1.45;font-weight:600}
h4{font-size:18px;line-height:1.5;font-weight:600}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--c-main);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 32px}
.section{padding:88px 0}
.section-tight{padding:56px 0}
.section-sand{background:var(--c-sand-l)}
.section-dark{background:var(--dark);color:#fff}
.section-dark h2,.section-dark h3,.section-dark h4{color:#fff}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px}
.section-head .lead{color:var(--muted);font-size:15px;max-width:640px;margin-top:10px;line-height:1.8}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.14em;color:var(--c-accent);text-transform:uppercase;font-weight:600;margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);border-radius:2px}
.text-link{font-size:15px;font-weight:600;color:var(--c-main);white-space:nowrap}
.text-link:hover{color:var(--c-accent)}

/* ===== 顶栏 ===== */
.site-header{position:sticky;top:0;z-index:80}
.brandbar{background:var(--dark);color:#fff;height:56px;overflow:hidden;transition:height .25s ease,opacity .25s ease}
.site-header.scrolled .brandbar{height:0;opacity:0}
.brand-inner{display:flex;align-items:center;gap:22px;height:56px}
.logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;letter-spacing:0;white-space:nowrap}
.logo:hover{color:#fff;text-decoration:none}
.logo-mark{width:30px;height:30px;border-radius:9px;background:var(--c-accent);color:#fff;display:grid;place-items:center;font-size:15px;font-weight:700;flex:none}
.trend{display:flex;align-items:center;gap:16px;overflow-x:auto;flex:1;min-width:0;scrollbar-width:none}
.trend::-webkit-scrollbar{display:none}
.trend a{color:rgba(255,255,255,.7);font-size:14px;white-space:nowrap;padding:4px 0}
.trend a:hover{color:var(--c-accent-l);text-decoration:none}
.brand-tools{display:flex;align-items:center;gap:14px;margin-left:auto}
.searchbox{display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-pill);padding:4px 6px 4px 12px;transition:border-color .2s,background .2s}
.searchbox:focus-within,.searchbox:hover{border-color:rgba(255,255,255,.36);background:rgba(255,255,255,.14)}
.searchbox svg{flex:none;opacity:.8}
.searchbox input{width:0;opacity:0;border:0;background:transparent;color:#fff;font-size:14px;height:30px;transition:width .25s ease,opacity .25s ease;outline:none}
.searchbox input::placeholder{color:rgba(255,255,255,.55)}
.searchbox:hover input,.searchbox:focus-within input{width:170px;opacity:1}
.entry-btn{display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--r-pill);background:var(--c-accent);color:#fff;font-size:14px;font-weight:600;white-space:nowrap}
.entry-btn:hover{background:#B4552A;color:#fff;text-decoration:none}
.nav-toggle{display:none;width:38px;height:34px;border-radius:var(--r-sm);background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px}

.channelbar{background:#fff;border-bottom:1px solid var(--line);box-shadow:0 1px 0 rgba(28,35,32,.02)}
.channel-inner{display:flex;align-items:center;gap:24px;height:44px}
.channel-list{display:flex;align-items:center;gap:4px;flex:1;min-width:0;overflow-x:auto;scrollbar-width:none}
.channel-list::-webkit-scrollbar{display:none}
.channel-list a{display:block;padding:0 14px;height:44px;line-height:44px;font-size:15px;color:var(--ink);white-space:nowrap;border-bottom:3px solid transparent;transition:color .2s,border-color .2s}
.channel-list a:hover{color:var(--c-main);text-decoration:none}
.channel-list a.active{color:var(--c-main);border-bottom-color:var(--c-main);font-weight:600}
.channel-extra{display:flex;align-items:center;gap:18px}
.channel-extra a{font-size:13px;color:var(--muted)}
.channel-extra a:hover{color:var(--c-accent)}

.drawer{position:fixed;inset:0;background:var(--bg);z-index:120;display:none;flex-direction:column;overflow-y:auto}
body.drawer-open{overflow:hidden}
body.drawer-open .drawer{display:flex}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;border-bottom:1px solid var(--line);background:#fff}
.drawer-close{width:36px;height:36px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;cursor:pointer;font-size:18px;line-height:1}
.drawer-body{padding:20px}
.drawer-body h4{font-size:14px;color:var(--muted);font-weight:600;margin-bottom:12px}
.drawer-links{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:24px}
.drawer-links a{display:block;padding:12px 14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);font-size:15px;color:var(--ink)}
.drawer-links a.active{border-color:var(--c-main);color:var(--c-main);font-weight:600}
.drawer-cta{display:grid;gap:10px;margin-top:8px}

/* ===== 面包屑 ===== */
.crumb{font-size:13px;color:var(--muted);padding:18px 0 0}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--c-main)}
.crumb span.sep{margin:0 8px;color:var(--line)}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--r-sm);font-size:16px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--c-accent);color:#fff}
.btn-primary:hover{background:#B4552A;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;border-color:var(--c-main);color:var(--c-main)}
.btn-ghost:hover{background:var(--c-sand-l);border-color:var(--c-main-l);color:var(--c-main)}
.btn-light{background:#fff;color:var(--c-main)}
.btn-light:hover{background:var(--c-sand);color:var(--c-main);transform:translateY(-1px)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-row{display:flex;flex-wrap:wrap;gap:14px}

/* ===== 徽章 ===== */
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:14px;line-height:1;background:var(--c-sand);color:var(--c-main);font-weight:500}
.badge-solid{background:var(--c-main);color:#fff}
.badge-line{background:#fff;border:1px solid var(--line);color:var(--text)}
.badge-line:hover{border-color:var(--c-accent);color:var(--c-accent)}

/* ===== 页面横幅 ===== */
.page-hero{position:relative;overflow:hidden;background-image:url("/assets/images/backpic/back-1.webp");background-size:cover;background-position:center 40%}
.page-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(20,53,48,.94) 0%,rgba(20,53,48,.78) 46%,rgba(20,53,48,.52) 100%)}
.page-hero-inner{position:relative;padding:70px 0 62px;max-width:780px;color:rgba(255,255,255,.86)}
.page-hero h1{color:#fff;margin-bottom:16px}
.page-hero .hero-sub{font-size:17px;line-height:1.9;color:rgba(255,255,255,.82);margin-bottom:26px;max-width:640px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.hero-tags .tag{display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:var(--r-pill);font-size:14px;color:rgba(255,255,255,.9);background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2)}

/* ===== 数据卡 ===== */
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.stat-card{background:var(--card);border-radius:var(--r-lg);padding:26px 24px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.stat-card .num{font-size:34px;font-weight:700;color:var(--c-accent);line-height:1.2;letter-spacing:-.02em}
.stat-card .num small{font-size:15px;color:var(--muted);font-weight:500;margin-left:6px}
.stat-card h4{margin:10px 0 8px}
.stat-card p{font-size:15px;line-height:1.8;color:var(--muted);margin:0}

/* ===== 图文长列表 ===== */
.media-list{display:flex;flex-direction:column}
.media-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:40px 0;border-bottom:1px solid var(--split)}
.media-row:last-child{border-bottom:0;padding-bottom:0}
.media-row:first-child{padding-top:0}
.media-row.reverse .media-figure{order:2}
.media-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-2)}
.media-body h3{margin:14px 0 12px}
.media-body p{font-size:16px;line-height:1.9;color:var(--text)}
.media-points{display:grid;gap:8px;margin:0 0 16px}
.media-points li{position:relative;padding-left:20px;font-size:15px;color:var(--muted)}
.media-points li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:2px;background:var(--c-main)}
.media-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted);margin-top:16px;padding-top:14px;border-top:1px dashed var(--split)}
.media-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line)}

/* ===== 分页 ===== */
.pager{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px;margin-top:52px}
.pager a,.pager .current{height:36px;min-width:36px;padding:0 12px;border-radius:var(--r-pill);display:inline-flex;align-items:center;justify-content:center;font-size:14px;background:#fff;border:1px solid var(--line);color:var(--text)}
.pager a:hover{background:var(--c-sand-l);border-color:var(--c-line);color:var(--c-main);text-decoration:none}
.pager .current{background:var(--c-main);border-color:var(--c-main);color:#fff;font-weight:600}

/* ===== FAQ ===== */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{position:relative;background:#fff;border-radius:var(--r-img);box-shadow:var(--sh-1);margin-bottom:12px;overflow:hidden;transition:box-shadow .25s ease}
.faq-item:hover{box-shadow:var(--sh-2)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 24px;cursor:pointer;font-size:17px;font-weight:600;color:var(--ink);list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-ico{flex:none;width:22px;height:22px;position:relative;transition:transform .2s ease}
.faq-ico::before,.faq-ico::after{content:"";position:absolute;left:50%;top:50%;background:var(--c-main);border-radius:2px;transform:translate(-50%,-50%)}
.faq-ico::before{width:14px;height:2px}
.faq-ico::after{width:2px;height:14px}
.faq-item[open]{padding-left:0}
.faq-item[open]::before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;background:var(--c-accent);border-radius:3px}
.faq-item[open] summary{color:var(--c-main)}
.faq-item[open] .faq-ico{transform:rotate(45deg)}
.faq-body{padding:0 24px 20px;font-size:15px;line-height:1.9;color:var(--text)}

/* ===== CTA 带 ===== */
.cta-band{position:relative;overflow:hidden;background:var(--c-main);border-radius:var(--r-lg);padding:48px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px;color:#fff}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:300px;height:300px;background:repeating-linear-gradient(45deg,rgba(231,220,203,.16) 0 8px,transparent 8px 22px);border-radius:50%;pointer-events:none}
.cta-band h2{color:#fff;max-width:520px}
.cta-band p{color:rgba(255,255,255,.82);margin:10px 0 0;font-size:16px;max-width:560px}
.cta-band .btn-row{position:relative;z-index:2}

/* ===== 页脚 ===== */
.site-footer{background:var(--dark);color:rgba(255,255,255,.78);padding:72px 0 0;margin-top:0}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand-row{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);margin-bottom:18px}
.footer-contact{display:grid;gap:8px}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.66)}
.footer-contact b{color:rgba(255,255,255,.86);font-weight:600}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:18px}
.footer-col ul{display:grid;gap:10px}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.7)}
.footer-col ul a:hover{color:var(--c-accent-l);text-decoration:none}
.footer-tags{display:flex;flex-wrap:wrap;gap:10px}
.footer-tags a{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);font-size:13px;background:rgba(255,255,255,.14);color:rgba(255,255,255,.88)}
.footer-tags a:hover{background:rgba(255,255,255,.24);color:#fff;text-decoration:none}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;padding:22px 0 28px;border-top:1px solid rgba(255,255,255,.14);font-size:13px;color:rgba(255,255,255,.62)}
.footer-bottom-links{display:flex;gap:20px}
.footer-bottom-links a{color:rgba(255,255,255,.62);font-size:13px}
.footer-bottom-links a:hover{color:var(--c-accent-l)}

/* ===== 回到顶部 ===== */
.to-top{position:fixed;right:24px;bottom:28px;width:44px;height:44px;border-radius:50%;background:var(--c-main);color:#fff;border:0;cursor:pointer;display:grid;place-items:center;opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .25s ease,transform .25s ease,visibility .25s;z-index:70;box-shadow:var(--sh-2)}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--c-main-l)}

/* ===== 响应式 ===== */
@media (max-width:1200px){
  .container{padding:0 24px}
  .media-row{gap:36px}
}
@media (max-width:992px){
  .section{padding:64px 0}
  h2{font-size:26px}
  .stat-grid{grid-template-columns:repeat(3,1fr);gap:18px}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 16px}
  .section{padding:52px 0}
  .brandbar{height:56px}
  .site-header.scrolled .brandbar{height:56px;opacity:1}
  .trend,.searchbox,.entry-btn{display:none}
  .nav-toggle{display:flex}
  .channel-list{display:none}
  .channel-extra{display:none}
  .channel-inner{height:48px}
  .channelbar::after{content:"当前频道：登陆入口指引";font-size:14px;color:var(--c-main);font-weight:600}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .stat-grid{grid-template-columns:1fr;gap:14px}
  .media-row{grid-template-columns:1fr;gap:20px;padding:32px 0}
  .media-row.reverse .media-figure{order:0}
  .media-body h3{font-size:20px}
  .cta-band{padding:32px 22px;flex-direction:column;align-items:flex-start}
  .cta-band::after{width:200px;height:200px;right:-70px;top:-70px}
  .footer-top{grid-template-columns:1fr 1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .btn{width:100%}
  .btn-row{width:100%}
  .to-top{right:16px;bottom:18px}
}
@media (max-width:520px){
  h1{font-size:26px}
  h2{font-size:22px}
  h3{font-size:19px}
  .page-hero-inner{padding:52px 0 46px}
  .footer-top{grid-template-columns:1fr}
  .drawer-links{grid-template-columns:1fr}
}

/* roulang page: category2 */
:root{
  --c-primary:#1E4B45;
  --c-primary-dark:#143530;
  --c-primary-light:#2E6B60;
  --c-sand:#E7DCCB;
  --c-sand-light:#F3EDE3;
  --c-accent:#C8622F;
  --c-accent-light:#E08A57;
  --c-bg:#FBFAF7;
  --c-surface:#FFFFFF;
  --c-ink:#1C2320;
  --c-text:#37403C;
  --c-muted:#6B7671;
  --c-border:#E3E0D8;
  --c-divider:#EFEBE3;
  --c-success:#2F7D5A;
  --c-warn:#B4862B;
  --c-danger:#C0392B;
  --r-lg:18px;
  --r-sm:10px;
  --r-img:14px;
  --sh-1:0 1px 2px rgba(28,35,32,.04);
  --sh-2:0 14px 34px -14px rgba(28,35,32,.18);
  --sec-pad:88px;
  --container:1200px;
  --font: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.95;
  letter-spacing:.01em;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p,dl,dd,dt,figure{margin:0;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;box-shadow:0 0 0 4px rgba(200,98,47,.25);}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:var(--sec-pad) 0;}
.section--sand{background:var(--c-sand-light);}
.section--dark{background:var(--c-primary-dark);color:#fff;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  font-size:16px;font-weight:600;line-height:1;
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 8px 20px -10px rgba(200,98,47,.7);}
.btn-primary:hover{background:#B4552A;transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(200,98,47,.85);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px -10px rgba(200,98,47,.7);}
.btn-ghost{background:transparent;color:var(--c-primary);border:1px solid var(--c-primary);}
.btn-ghost:hover{background:var(--c-sand-light);border-color:var(--c-primary-light);color:var(--c-primary-dark);}
.btn-on-dark{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.5);}
.btn-on-dark:hover{background:rgba(255,255,255,.12);border-color:#fff;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.text-link{color:var(--c-primary);font-weight:600;font-size:15px;border-bottom:1px solid transparent;transition:color .2s ease,border-color .2s ease;}
.text-link:hover{color:var(--c-accent);border-bottom-color:var(--c-accent);}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:200;background:var(--c-surface);}
.brandbar{background:var(--c-primary-dark);color:#fff;transition:height .25s ease;}
.brand-inner{display:flex;align-items:center;gap:20px;height:60px;transition:height .25s ease;}
.logo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;letter-spacing:0;white-space:nowrap;}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:var(--c-accent);color:#fff;font-size:17px;font-weight:700;
}
.hotline{display:flex;align-items:center;gap:12px;overflow:hidden;flex:1;min-width:0;}
.hotline-label{
  flex:none;font-size:12px;letter-spacing:.08em;color:var(--c-accent-light);
  border:1px solid rgba(224,138,87,.5);border-radius:999px;padding:2px 10px;
}
.hotline-track{display:flex;gap:18px;overflow-x:auto;scrollbar-width:none;white-space:nowrap;}
.hotline-track::-webkit-scrollbar{display:none;}
.hotline-track a{font-size:14px;color:rgba(255,255,255,.78);transition:color .2s ease;}
.hotline-track a:hover{color:#fff;}
.search-box{
  display:flex;align-items:center;gap:8px;flex:none;
  height:38px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);
  transition:background-color .2s ease,border-color .2s ease,width .25s ease;
}
.search-box:hover{background:rgba(255,255,255,.16);}
.search-box svg{width:16px;height:16px;flex:none;stroke:rgba(255,255,255,.75);fill:none;stroke-width:1.75;}
.search-box input{
  width:170px;border:0;background:transparent;color:#fff;font-size:14px;outline:none;
}
.search-box input::placeholder{color:rgba(255,255,255,.55);}
.brand-cta{flex:none;}
.menu-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:40px;height:40px;padding:0 8px;border-radius:10px;border:1px solid rgba(255,255,255,.25);}
.menu-toggle span{display:block;height:2px;width:100%;background:#fff;border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.site-header.is-open .menu-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.site-header.is-open .menu-toggle span:nth-child(2){opacity:0;}
.site-header.is-open .menu-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.channelbar{background:var(--c-surface);border-bottom:1px solid var(--c-border);}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:52px;}
.channel-list{display:flex;align-items:center;gap:6px;flex-wrap:wrap;}
.channel-list a{
  display:inline-block;position:relative;padding:14px 14px 12px;
  font-size:16px;font-weight:600;color:var(--c-ink);
  transition:color .2s ease;
}
.channel-list a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:3px;border-radius:3px;
  background:transparent;transition:background-color .2s ease;
}
.channel-list a:hover{color:var(--c-primary);}
.channel-list a.active{color:var(--c-primary);}
.channel-list a.active::after{background:var(--c-primary);}
.channel-extra{display:flex;align-items:center;gap:16px;flex:none;}
.channel-extra a{font-size:14px;color:var(--c-muted);transition:color .2s ease;}
.channel-extra a:hover{color:var(--c-accent);}

/* ---------- breadcrumb ---------- */
.crumb{margin:0 0 8px;font-size:13px;color:var(--c-muted);}
.crumb a{color:var(--c-muted);transition:color .2s ease;}
.crumb a:hover{color:var(--c-primary);}
.crumb span.sep{margin:0 6px;color:var(--c-border);}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:var(--c-primary-dark) url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(20,53,48,.94) 0%,rgba(30,75,69,.82) 46%,rgba(30,75,69,.46) 100%);
}
.hero-inner{position:relative;z-index:1;padding:76px 0 72px;max-width:760px;color:#fff;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(231,220,203,.16);border:1px solid rgba(231,220,203,.34);color:var(--c-sand);
}
.hero h1{margin:18px 0 14px;font-size:clamp(28px,4.4vw,44px);line-height:1.28;font-weight:700;letter-spacing:-.01em;}
.hero-sub{font-size:18px;line-height:1.85;color:rgba(255,255,255,.86);max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;
  margin-top:40px;padding-top:26px;border-top:1px solid rgba(255,255,255,.16);
}
.hero-stats b{display:block;font-size:30px;line-height:1.2;font-weight:700;color:var(--c-accent-light);}
.hero-stats span{display:block;margin-top:4px;font-size:14px;color:rgba(255,255,255,.75);}

/* ---------- section head ---------- */
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-block;margin-bottom:12px;padding:4px 12px;border-radius:999px;
  background:var(--c-sand);color:var(--c-primary);font-size:13px;font-weight:600;
}
.sec-head h2{font-size:30px;line-height:1.35;font-weight:700;color:var(--c-ink);letter-spacing:-.01em;}
.sec-head p{margin-top:14px;font-size:16px;color:var(--c-muted);line-height:1.9;}
.section--dark .sec-head h2{color:#fff;}
.section--dark .sec-head p{color:rgba(255,255,255,.72);}
.section--dark .eyebrow{background:rgba(231,220,203,.16);color:var(--c-sand);}

/* ---------- prep cards ---------- */
.prep-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.prep-card{
  background:var(--c-surface);border-radius:var(--r-lg);padding:28px;
  box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease;
}
.prep-card:nth-child(2){margin-left:40px;}
.prep-card:nth-child(4){margin-left:40px;}
.prep-grid > .prep-card:nth-child(3){margin-left:0;}
.prep-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.prep-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;background:var(--c-sand-light);
  border:1px solid var(--c-border);margin-bottom:16px;
}
.prep-icon svg{width:24px;height:24px;fill:none;stroke:var(--c-primary);stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
.prep-card h3{font-size:22px;line-height:1.45;font-weight:600;color:var(--c-ink);}
.prep-card p{margin-top:10px;font-size:16px;color:var(--c-text);}
.prep-card .text-link{display:inline-block;margin-top:14px;}

/* ---------- chips + scene grid ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:36px;}
.chip{
  height:36px;padding:0 18px;border-radius:999px;border:1px solid var(--c-border);
  background:var(--c-surface);color:var(--c-text);font-size:15px;font-weight:600;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.chip:hover{border-color:var(--c-accent);color:var(--c-accent);}
.chip.is-on{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.scene-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--c-surface);border-radius:var(--r-lg);box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.scene-cover{position:relative;overflow:hidden;padding-top:62.5%;background:var(--c-sand-light);}
.scene-cover img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transition:transform 1.2s ease;
}
.scene-card:hover .scene-cover img{transform:scale(1.03);}
.scene-cover .badge{position:absolute;left:14px;top:14px;background:rgba(20,53,48,.88);color:#fff;}
.scene-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.scene-body h3{font-size:19px;line-height:1.5;font-weight:600;color:var(--c-ink);transition:color .2s ease;}
.scene-card:hover .scene-body h3{color:var(--c-primary);}
.scene-body p{margin-top:10px;font-size:15px;line-height:1.85;color:var(--c-muted);}
.scene-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:18px;border-top:1px solid var(--c-divider);
}
.scene-foot .meta{font-size:13px;color:var(--c-muted);}
.scene-card.is-hidden{display:none;}
.grid-more{display:flex;justify-content:center;margin-top:44px;}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--c-sand);color:var(--c-primary);font-size:13px;font-weight:600;
}
.badge-solid{background:var(--c-primary);color:#fff;}
.badge-line{background:var(--c-surface);border:1px solid var(--c-border);color:var(--c-text);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:20px;}
.step{
  position:relative;padding:26px 20px 24px;background:var(--c-surface);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:999px;background:var(--c-primary);color:#fff;
  font-size:16px;font-weight:700;margin-bottom:14px;
}
.step h3{font-size:18px;line-height:1.5;font-weight:600;color:var(--c-ink);}
.step p{margin-top:8px;font-size:14px;line-height:1.85;color:var(--c-muted);}

/* ---------- checklist ---------- */
.check-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:start;}
.check-list li{
  display:flex;gap:12px;padding:16px 0;border-bottom:1px solid var(--c-divider);
}
.check-list li:last-child{border-bottom:0;}
.check-mark{
  flex:none;width:22px;height:22px;margin-top:8px;border-radius:6px;background:var(--c-sand-light);
  display:inline-flex;align-items:center;justify-content:center;
}
.check-mark svg{width:14px;height:14px;fill:none;stroke:var(--c-primary);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;}
.check-list b{display:block;font-size:17px;font-weight:600;color:var(--c-ink);}
.check-list span{display:block;margin-top:2px;font-size:15px;color:var(--c-muted);}
.check-aside{
  background:var(--c-primary);color:#fff;border-radius:var(--r-lg);padding:30px;
  box-shadow:var(--sh-2);
}
.check-aside h3{font-size:21px;font-weight:600;line-height:1.5;}
.check-aside p{margin-top:12px;font-size:15px;line-height:1.9;color:rgba(255,255,255,.82);}
.check-aside .aside-list{margin-top:20px;display:grid;gap:12px;}
.check-aside .aside-list li{
  font-size:15px;color:rgba(255,255,255,.9);padding-left:16px;position:relative;
}
.check-aside .aside-list li::before{
  content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:2px;background:var(--c-accent-light);
}
.check-aside .btn{margin-top:24px;width:100%;}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:920px;margin:0 auto;}
.faq-item{
  background:var(--c-surface);border-radius:var(--r-lg);box-shadow:var(--sh-1);
  overflow:hidden;transition:box-shadow .25s ease;
}
.faq-item[open]{box-shadow:var(--sh-2);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--c-ink);
  list-style:none;cursor:pointer;transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--c-primary);}
.faq-item summary::after{
  content:"+";flex:none;width:26px;height:26px;border-radius:999px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-sand-light);color:var(--c-primary);font-size:18px;font-weight:600;
  transition:transform .2s ease,background-color .2s ease;
}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg);background:var(--c-sand);}
.faq-answer{
  padding:0 24px 22px 24px;border-left:3px solid var(--c-accent);margin-left:0;
}
.faq-answer p{font-size:15.5px;line-height:1.9;color:var(--c-text);padding-left:20px;}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--c-primary);color:#fff;
  border-radius:var(--r-lg);padding:52px 48px;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;
  border-radius:50%;background:rgba(231,220,203,.12);
}
.cta-band::before{
  content:"";position:absolute;right:80px;bottom:-90px;width:200px;height:200px;
  border-radius:50%;background:rgba(200,98,47,.22);
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-band h2{font-size:28px;line-height:1.4;font-weight:700;color:#fff;}
.cta-band p{margin-top:10px;font-size:16px;color:rgba(255,255,255,.82);max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{background:var(--c-primary-dark);color:rgba(255,255,255,.78);padding:72px 0 0;margin-top:8px;}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand-row{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.9;max-width:360px;}
.footer-contact{margin-top:18px;display:grid;gap:8px;}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.7);}
.footer-contact b{color:rgba(255,255,255,.9);font-weight:600;}
.footer-col h4{font-size:16px;font-weight:600;color:#fff;margin-bottom:18px;}
.footer-col ul{display:grid;gap:12px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s ease;}
.footer-col ul a:hover{color:var(--c-accent-light);}
.footer-tags{display:flex;flex-wrap:wrap;gap:10px;}
.footer-tags a{
  display:inline-block;padding:5px 12px;border-radius:999px;font-size:13px;
  background:rgba(255,255,255,.14);color:rgba(255,255,255,.85);
  transition:background-color .2s ease,color .2s ease;
}
.footer-tags a:hover{background:var(--c-accent);color:#fff;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding:22px 0 26px;border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;color:rgba(255,255,255,.62);
}
.footer-bottom-links{display:flex;gap:20px;}
.footer-bottom-links a{color:rgba(255,255,255,.62);transition:color .2s ease;}
.footer-bottom-links a:hover{color:#fff;}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;z-index:150;
  width:44px;height:44px;border-radius:999px;background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-2);opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,background-color .2s ease;
}
.to-top.is-on{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--c-accent);}
.to-top svg{width:18px;height:18px;fill:none;stroke:#fff;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  :root{--container:100%;}
  .prep-card:nth-child(2),.prep-card:nth-child(4),.prep-grid > .prep-card:nth-child(3){margin-left:0;}
}
@media (max-width:992px){
  :root{--sec-pad:64px;}
  .search-box input{width:120px;}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(3,minmax(0,1fr));}
  .check-wrap{grid-template-columns:1fr;gap:32px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  :root{--sec-pad:52px;}
  body{font-size:16px;overflow-x:hidden;}
  .container{padding:0 20px;}
  .hotline,.search-box,.brand-cta{display:none;}
  .brand-inner{height:58px;justify-content:space-between;}
  .menu-toggle{display:flex;}
  .channelbar{display:none;border-bottom:0;}
  .site-header.is-open .channelbar{
    display:block;position:fixed;left:0;right:0;top:58px;bottom:0;overflow-y:auto;
    background:var(--c-surface);padding:16px 0 32px;
  }
  .site-header.is-open .channel-inner{flex-direction:column;align-items:stretch;gap:10px;min-height:0;}
  .site-header.is-open .channel-list{flex-direction:row;flex-wrap:wrap;gap:10px;}
  .site-header.is-open .channel-list a{
    border:1px solid var(--c-border);border-radius:10px;padding:12px 16px;font-size:15px;width:100%;
  }
  .site-header.is-open .channel-list a::after{display:none;}
  .site-header.is-open .channel-list a.active{background:var(--c-sand-light);border-color:var(--c-primary);}
  .site-header.is-open .channel-extra{flex-direction:column;align-items:flex-start;gap:10px;padding-top:14px;border-top:1px solid var(--c-divider);}
  .hero-inner{padding:56px 0 52px;}
  .hero-stats{grid-template-columns:1fr;gap:14px;}
  .hero-stats b{font-size:26px;}
  .prep-grid{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .cta-band{padding:36px 24px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .footer-top{grid-template-columns:1fr 1fr;}
  .footer-brand{grid-column:1 / -1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px;}
  .to-top{right:16px;bottom:18px;}
}
@media (max-width:520px){
  .hero h1{font-size:26px;}
  .hero-sub{font-size:16px;}
  .sec-head h2{font-size:24px;}
  .chips{gap:8px;}
  .chip{height:34px;padding:0 14px;font-size:14px;}
  .footer-top{grid-template-columns:1fr;}
  .btn{height:46px;padding:0 20px;font-size:15px;}
  .faq-item summary{padding:18px 18px;font-size:16px;}
  .faq-answer{padding:0 18px 18px;}
  .faq-answer p{padding-left:14px;font-size:15px;}
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
:root{
  --brand:#1E4B45;
  --brand-dark:#143530;
  --brand-light:#2E6B60;
  --sand:#E7DCCB;
  --sand-light:#F3EDE3;
  --accent:#C8622F;
  --accent-light:#E08A57;
  --accent-deep:#B4552A;
  --bg:#FBFAF7;
  --card:#FFFFFF;
  --ink:#1C2320;
  --text:#37403C;
  --muted:#6B7671;
  --border:#E3E0D8;
  --divider:#EFEBE3;
  --success:#2F7D5A;
  --warn:#B4862B;
  --error:#C0392B;
  --radius-lg:18px;
  --radius-sm:10px;
  --radius-img:14px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(28,35,32,.04);
  --shadow-2:0 14px 34px -14px rgba(28,35,32,.18);
  --container:1200px;
  --gap:24px;
}

/* ============ reset / base ============ */
*,*::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:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:17px;
  line-height:1.95;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--accent);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.35;letter-spacing:-.01em;}
h1{font-size:clamp(28px,4.4vw,44px);line-height:1.28;}
h2{font-size:clamp(24px,2.6vw,30px);}
h3{font-size:22px;font-weight:600;line-height:1.45;}
h4{font-size:18px;font-weight:600;line-height:1.5;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 4px rgba(200,98,47,.25);border-radius:6px;}

/* ============ 容器 ============ */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
@media (min-width:1440px){.container{max-width:1280px;}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:0 22px;height:46px;border-radius:var(--radius-sm);
  font-size:16px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px -10px rgba(200,98,47,.75);}
.btn-primary:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px);box-shadow:0 14px 28px -12px rgba(200,98,47,.85);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px -8px rgba(200,98,47,.7);}
.btn-ghost{background:transparent;color:var(--brand);border:1px solid var(--brand-light);}
.btn-ghost:hover{background:var(--sand-light);border-color:var(--brand);color:var(--brand-dark);}
.btn-light{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.34);}
.btn-light:hover{background:rgba(255,255,255,.24);color:#fff;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:8px;}
.btn-block{width:100%;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--radius-pill);font-size:14px;font-weight:600;line-height:1;
  background:var(--sand);color:var(--brand);
}
.badge-solid{background:var(--brand);color:#fff;}
.badge-accent{background:rgba(200,98,47,.12);color:var(--accent-deep);}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:var(--radius-pill);font-size:14px;color:var(--text);
  background:#fff;border:1px solid var(--border);transition:all .2s ease;
}
.tag:hover{border-color:var(--accent);color:var(--accent-deep);}

/* ============ 头部：品牌行 ============ */
.site-header{position:sticky;top:0;z-index:60;background:#fff;}
.brandbar{background:var(--brand-dark);color:#fff;}
.brandbar-inner{display:flex;align-items:center;gap:24px;height:56px;}
.logo{display:flex;align-items:center;gap:10px;color:#fff;flex:0 0 auto;}
.logo:hover{color:#fff;}
.logo-mark{
  width:30px;height:30px;border-radius:9px;background:var(--accent);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;letter-spacing:0;
}
.logo-text{font-size:17px;font-weight:600;letter-spacing:.01em;white-space:nowrap;}
.hotbar{display:flex;align-items:center;gap:12px;min-width:0;flex:1 1 auto;overflow:hidden;}
.hotbar-label{font-size:13px;color:rgba(255,255,255,.55);flex:0 0 auto;}
.hot-list{display:flex;align-items:center;gap:18px;overflow-x:auto;scrollbar-width:none;}
.hot-list::-webkit-scrollbar{display:none;}
.hot-list a{font-size:14px;color:rgba(255,255,255,.78);white-space:nowrap;}
.hot-list a:hover{color:var(--accent-light);}
.brand-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.search-box{display:flex;align-items:center;height:36px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius-pill);padding:0 6px 0 14px;transition:background-color .2s ease,border-color .2s ease;}
.search-box:focus-within{background:rgba(255,255,255,.2);border-color:rgba(255,255,255,.42);}
.search-box input{width:132px;height:34px;border:0;background:transparent;color:#fff;font-size:14px;outline:none;}
.search-box input::placeholder{color:rgba(255,255,255,.55);}
.search-icon{width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;color:rgba(255,255,255,.8);}
.search-icon:hover{background:rgba(255,255,255,.18);color:#fff;}
.menu-toggle{display:none;width:38px;height:38px;border-radius:9px;border:1px solid rgba(255,255,255,.24);align-items:center;justify-content:center;flex-direction:column;gap:4px;}
.menu-toggle span{display:block;width:17px;height:2px;background:#fff;border-radius:2px;}

/* ============ 头部：频道条 ============ */
.channelbar{background:#fff;border-bottom:1px solid var(--border);}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:44px;}
.channel-list{display:flex;align-items:center;gap:26px;overflow-x:auto;scrollbar-width:none;}
.channel-list::-webkit-scrollbar{display:none;}
.channel-list a{
  position:relative;display:inline-flex;align-items:center;height:44px;
  font-size:15px;color:var(--ink);white-space:nowrap;
}
.channel-list a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--brand);transform:scaleX(0);transition:transform .2s ease;}
.channel-list a:hover{color:var(--brand);}
.channel-list a:hover::after{transform:scaleX(1);}
.channel-list a.active{color:var(--brand);font-weight:600;}
.channel-list a.active::after{transform:scaleX(1);}
.channel-extra{display:flex;align-items:center;gap:20px;flex:0 0 auto;}
.channel-extra a{font-size:13px;color:var(--muted);}
.channel-extra a:hover{color:var(--accent);}

/* ============ 移动抽屉 ============ */
.drawer{
  position:fixed;inset:0 auto 0 0;width:min(86vw,340px);z-index:90;background:#fff;
  transform:translateX(-102%);transition:transform .3s ease;display:flex;flex-direction:column;
  box-shadow:0 20px 60px -20px rgba(28,35,32,.4);
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;gap:10px;padding:16px 18px;background:var(--brand-dark);color:#fff;font-weight:600;}
.drawer-close{margin-left:auto;width:34px;height:34px;border-radius:8px;color:#fff;font-size:22px;line-height:1;background:rgba(255,255,255,.12);}
.drawer-body{padding:18px;overflow-y:auto;flex:1;}
.drawer-search{background:var(--sand-light);border:1px solid var(--border);width:100%;padding:0 6px 0 14px;margin-bottom:18px;}
.drawer-search input{color:var(--ink);width:100%;}
.drawer-search input::placeholder{color:var(--muted);}
.drawer-search .search-icon{color:var(--muted);}
.drawer-nav li+li{border-top:1px solid var(--divider);}
.drawer-nav a{display:block;padding:13px 4px;font-size:16px;color:var(--ink);}
.drawer-nav a.active{color:var(--brand);font-weight:600;}
.drawer-foot{padding:16px 18px;border-top:1px solid var(--divider);display:grid;gap:10px;}
.drawer-mask{position:fixed;inset:0;background:rgba(20,53,48,.5);z-index:80;opacity:0;visibility:hidden;transition:opacity .3s ease;}
.drawer-mask.show{opacity:1;visibility:visible;}
body.drawer-open{overflow:hidden;}

/* ============ Hero ============ */
.hero{
  position:relative;color:#fff;overflow:hidden;
  background:var(--brand-dark) url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding:88px 0 76px;
}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(118deg,rgba(20,53,48,.94) 0%,rgba(30,75,69,.78) 52%,rgba(20,53,48,.66) 100%);}
.hero-inner{position:relative;z-index:1;max-width:820px;}
.hero-eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.78);margin-bottom:18px;}
.hero-eyebrow i{width:26px;height:2px;background:var(--accent-light);border-radius:2px;display:inline-block;}
.hero h1{color:#fff;margin-bottom:18px;}
.hero-sub{font-size:18px;line-height:1.9;color:rgba(255,255,255,.85);max-width:660px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px;}
.hero-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;max-width:720px;border-top:1px solid rgba(255,255,255,.16);padding-top:24px;}
.metric b{display:block;font-size:30px;font-weight:700;color:var(--accent-light);line-height:1.2;letter-spacing:0;}
.metric span{display:block;font-size:14px;color:rgba(255,255,255,.72);margin-top:4px;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section.sand{background:var(--sand-light);}
.section.white{background:#fff;}
.section.dark{background:var(--brand-dark);color:rgba(255,255,255,.82);}
.section.dark h2,.section.dark h3,.section.dark h4{color:#fff;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--accent);margin-bottom:12px;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:17px;margin:0;}
.section.dark .section-head p{color:rgba(255,255,255,.72);}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* ============ 验证方式对照 ============ */
.compare{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:44px;align-items:center;}
.compare-img{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-2);}
.compare-img img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform 1.2s ease;}
.compare:hover .compare-img img{transform:scale(1.03);}
.method-list{display:grid;gap:16px;}
.method{
  background:#fff;border-radius:var(--radius-lg);padding:22px 24px;box-shadow:var(--shadow-1);
  display:grid;grid-template-columns:44px 1fr;gap:16px;align-items:start;
  transition:transform .25s ease,box-shadow .25s ease;
}
.method:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.method-icon{
  width:44px;height:44px;border-radius:12px;background:var(--sand-light);
  display:flex;align-items:center;justify-content:center;color:var(--brand);
}
.method h3{font-size:19px;margin-bottom:6px;}
.method p{font-size:15px;color:var(--muted);margin:0;line-height:1.8;}
.method .method-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}

/* ============ 适用场景 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.scene{
  background:#fff;border-radius:var(--radius-lg);padding:26px 22px;box-shadow:var(--shadow-1);
  border-top:3px solid var(--sand);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.scene:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-top-color:var(--accent);}
.scene h4{margin-bottom:10px;}
.scene p{font-size:15px;color:var(--muted);line-height:1.8;margin:0;}

/* ============ 流程步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;counter-reset:step;}
.step{position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px 22px 24px;}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;
  border-radius:var(--radius-pill);background:var(--brand);color:#fff;font-weight:700;font-size:16px;margin-bottom:16px;
}
.step h4{margin-bottom:8px;}
.step p{font-size:15px;color:var(--muted);line-height:1.8;margin:0;}
.step::after{
  content:"";position:absolute;top:46px;right:-14px;width:12px;height:2px;background:var(--sand);
}
.step:last-child::after{display:none;}

/* ============ 双栏 ============ */
.two-col{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:32px;align-items:start;}
.note-list{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-1);overflow:hidden;}
.note-item{
  display:grid;grid-template-columns:64px 1fr;gap:18px;padding:26px 28px;
  border-bottom:1px solid var(--divider);transition:background-color .2s ease;
}
.note-item:last-child{border-bottom:0;}
.note-item:hover{background:var(--sand-light);}
.note-num{font-size:32px;font-weight:700;color:var(--accent);line-height:1.1;letter-spacing:-.02em;}
.note-body h3{font-size:19px;margin-bottom:8px;}
.note-body p{font-size:15px;color:var(--muted);line-height:1.85;margin:0 0 12px;}
.note-meta{display:flex;flex-wrap:wrap;gap:8px;}

.col-side{position:sticky;top:124px;display:grid;gap:20px;}
.side-card{background:#fff;border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-1);}
.side-card.dark{background:var(--brand);color:rgba(255,255,255,.84);box-shadow:var(--shadow-2);}
.side-card.dark h3{color:#fff;font-size:19px;margin-bottom:14px;}
.side-card h3{font-size:19px;margin-bottom:14px;}
.side-list{display:grid;gap:12px;}
.side-list li{display:grid;grid-template-columns:18px 1fr;gap:10px;font-size:15px;line-height:1.8;}
.side-list li::before{content:"";width:8px;height:8px;margin-top:9px;border-radius:2px;background:var(--accent-light);}
.tagcloud{display:flex;flex-wrap:wrap;gap:10px;}
.side-card.dark .tag{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.2);color:#fff;}
.side-card.dark .tag:hover{border-color:var(--accent-light);color:var(--accent-light);}
.side-cta p{font-size:15px;color:var(--muted);line-height:1.85;margin:0 0 16px;}

/* ============ 安全习惯（深色） ============ */
.habit-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.habit{
  border:1px solid rgba(255,255,255,.14);border-radius:var(--radius-lg);padding:24px;
  background:rgba(255,255,255,.04);
}
.habit h4{margin-bottom:8px;font-size:18px;}
.habit p{font-size:15px;color:rgba(255,255,255,.72);line-height:1.85;margin:0;}
.stat-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:36px;border-top:1px solid rgba(255,255,255,.14);padding-top:28px;}
.stat b{display:block;font-size:28px;color:var(--accent-light);line-height:1.2;}
.stat span{font-size:14px;color:rgba(255,255,255,.68);}

/* ============ FAQ ============ */
.faq{display:grid;gap:12px;max-width:920px;margin:0 auto;}
.faq-item{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-1);overflow:hidden;}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--ink);
  transition:background-color .2s ease,color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-item summary::after{
  content:"+";margin-left:auto;font-size:22px;font-weight:400;color:var(--accent);
  transition:transform .2s ease;line-height:1;
}
.faq-item[open] summary{color:var(--brand);}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg);}
.faq-answer{
  padding:0 24px 22px 24px;border-left:3px solid var(--accent);margin-left:0;
  font-size:15px;line-height:1.9;color:var(--muted);
}
.faq-item[open] .faq-answer{margin-left:24px;padding-right:28px;}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;background:var(--brand);color:#fff;border-radius:var(--radius-lg);
  padding:52px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;top:-60px;right:-40px;width:280px;height:280px;border-radius:50%;
  background:rgba(231,220,203,.12);
}
.cta-band::after{
  content:"";position:absolute;bottom:-90px;right:110px;width:180px;height:180px;border-radius:50%;
  background:rgba(200,98,47,.18);
}
.cta-text{position:relative;z-index:1;max-width:620px;}
.cta-text h2{color:#fff;margin-bottom:10px;}
.cta-text p{margin:0;color:rgba(255,255,255,.8);font-size:16px;}
.cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 回到顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:28px;width:44px;height:44px;border-radius:50%;
  background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-2);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease,background-color .2s ease;z-index:70;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--brand-dark);color:#fff;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.72);padding:72px 0 28px;margin-top:0;}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.14);}
.footer-brand-row{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:600;margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);margin:0 0 18px;}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.66);line-height:2;}
.footer-contact b{color:rgba(255,255,255,.86);font-weight:600;}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px;}
.footer-col ul{display:grid;gap:11px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.7);}
.footer-col ul a:hover{color:var(--accent-light);}
.footer-tags{display:flex;flex-wrap:wrap;gap:9px;}
.footer-tags a{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.14);color:rgba(255,255,255,.82);font-size:13px;
}
.footer-tags a:hover{background:rgba(200,98,47,.4);color:#fff;}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:24px;font-size:13px;color:rgba(255,255,255,.62);}
.footer-bottom-links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom-links a{font-size:13px;color:rgba(255,255,255,.62);}
.footer-bottom-links a:hover{color:var(--accent-light);}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step::after{display:none;}
  .col-side{position:static;}
}
@media (max-width:992px){
  .container{padding:0 24px;}
  .compare{grid-template-columns:1fr;gap:32px;}
  .two-col{grid-template-columns:1fr;gap:28px;}
  .footer-top{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .search-box input{width:100px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .hotbar{display:none;}
  .menu-toggle{display:flex;}
  .search-box{display:none;}
  .channelbar{display:none;}
  .section{padding:52px 0;}
  .hero{padding:56px 0 52px;background-image:url('/assets/images/backpic/back-1.webp');}
  .hero-metrics{grid-template-columns:1fr;gap:16px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{flex:1 1 100%;}
  .habit-grid{grid-template-columns:1fr;}
  .stat-row{grid-template-columns:1fr;gap:14px;}
  .cta-band{padding:36px 24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .note-item{grid-template-columns:1fr;gap:8px;padding:22px 20px;}
  .note-num{font-size:26px;}
  .faq-item[open] .faq-answer{margin-left:18px;padding-right:20px;}
}
@media (max-width:520px){
  body{font-size:16px;}
  .scene-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .footer-top{grid-template-columns:1fr;}
  .logo-text{font-size:15px;}
  .cta-band h2{font-size:22px;}
}

/* roulang page: category4 */
:root{
  --ink:#1C2320;
  --body:#37403C;
  --muted:#6B7671;
  --line:#E3E0D8;
  --split:#EFEBE3;
  --bg:#FBFAF7;
  --card:#FFFFFF;
  --green:#1E4B45;
  --green-deep:#143530;
  --green-light:#2E6B60;
  --sand:#E7DCCB;
  --sand-light:#F3EDE3;
  --orange:#C8622F;
  --orange-light:#E08A57;
  --ok:#2F7D5A;
  --warn:#B4862B;
  --err:#C0392B;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(28,35,32,.04);
  --sh-2:0 14px 34px -14px rgba(28,35,32,.18);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:17px;
  line-height:1.95;
  letter-spacing:.01em;
  color:var(--body);
  background:var(--bg);
}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.005em;}
h1{font-size:clamp(28px,4.4vw,44px);line-height:1.28;}
h2{font-size:30px;line-height:1.35;}
h3{font-size:22px;line-height:1.45;font-weight:600;}
h4{font-size:18px;line-height:1.5;font-weight:600;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;border-radius:var(--r-md);}
a{color:var(--green);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--orange);}
button{font:inherit;cursor:pointer;}
input,textarea,select{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--green);outline-offset:2px;box-shadow:0 0 0 4px rgba(200,98,47,.25);border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:88px 0;}
.section-sand{background:var(--sand);}
.section-light{background:var(--sand-light);}
.section-dark{background:var(--green-deep);color:rgba(255,255,255,.86);}
.section-dark h2,.section-dark h3,.section-dark h4{color:#fff;}

/* ===== 头部 ===== */
.site-header{position:sticky;top:0;z-index:80;background:var(--card);transition:box-shadow .25s ease;}
.site-header.stuck{box-shadow:0 10px 30px -20px rgba(20,53,48,.55);}
.brandbar{background:var(--green-deep);color:#fff;transition:height .25s ease,opacity .25s ease;}
.brand-inner{display:flex;align-items:center;gap:20px;height:64px;transition:height .25s ease;}
.site-header.stuck .brand-inner{height:54px;}
.brand{display:flex;align-items:center;gap:10px;color:#fff;flex-shrink:0;}
.brand:hover{color:#fff;}
.logo-mark{
  width:32px;height:32px;border-radius:9px;
  background:var(--orange);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;flex-shrink:0;
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
.hotline{display:flex;align-items:center;gap:12px;overflow:hidden;flex:1;min-width:0;}
.hotline-label{font-size:12px;color:rgba(255,255,255,.55);border:1px solid rgba(255,255,255,.24);border-radius:999px;padding:1px 10px;flex-shrink:0;}
.hotline-track{display:flex;gap:18px;overflow-x:auto;scrollbar-width:none;}
.hotline-track::-webkit-scrollbar{display:none;}
.hotline-track a{color:rgba(255,255,255,.78);font-size:14px;white-space:nowrap;}
.hotline-track a:hover{color:#fff;}
.site-search{display:flex;align-items:center;gap:8px;flex-shrink:0;}
.site-search input{
  width:200px;height:38px;border-radius:999px;border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.08);color:#fff;padding:0 16px;font-size:14px;transition:width .25s ease,border-color .2s ease,background-color .2s ease;
}
.site-search input::placeholder{color:rgba(255,255,255,.5);}
.site-search input:focus{width:250px;border-color:var(--orange-light);background:rgba(255,255,255,.14);outline:none;box-shadow:0 0 0 4px rgba(200,98,47,.22);}
.header-cta{
  background:var(--orange);color:#fff;border-radius:var(--r-sm);height:40px;padding:0 20px;
  display:inline-flex;align-items:center;font-size:15px;font-weight:600;flex-shrink:0;
  border:1px solid var(--orange);transition:background-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.header-cta:hover{background:#B4552A;border-color:#B4552A;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.header-cta:active{transform:translateY(0);}
.menu-toggle{
  display:none;background:none;border:0;padding:8px;flex-direction:column;gap:5px;flex-shrink:0;
}
.menu-toggle span{display:block;width:22px;height:2px;background:#fff;border-radius:2px;transition:transform .25s ease,opacity .2s ease;}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* 频道条 */
.channelbar{background:var(--card);border-bottom:1px solid var(--line);}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:52px;}
.channel-list{display:flex;align-items:center;gap:26px;overflow-x:auto;scrollbar-width:none;}
.channel-list::-webkit-scrollbar{display:none;}
.channel-list a{
  position:relative;display:inline-block;line-height:52px;font-size:15px;color:var(--ink);white-space:nowrap;
}
.channel-list a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:transparent;border-radius:2px 2px 0 0;transition:background-color .2s ease;}
.channel-list a:hover{color:var(--green-light);}
.channel-list a.active{color:var(--green);font-weight:600;}
.channel-list a.active::after{background:var(--green);}
.channel-extra{display:flex;align-items:center;gap:16px;flex-shrink:0;}
.channel-extra a{font-size:13px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:3px 12px;}
.channel-extra a:hover{color:var(--orange);border-color:var(--orange-light);background:var(--sand-light);}
.site-header.stuck .channelbar{border-bottom-color:transparent;}
.site-header.stuck .channel-inner{height:46px;}
.site-header.stuck .channel-list a{line-height:46px;}

/* 移动抽屉 */
.mobile-drawer{
  display:none;position:fixed;inset:0;z-index:90;background:var(--bg);
  padding:20px 20px 90px;overflow-y:auto;
  transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity .22s ease,transform .22s ease;
}
.mobile-drawer.open{opacity:1;transform:translateY(0);pointer-events:auto;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-search{display:flex;gap:10px;margin-bottom:22px;}
.drawer-search input{flex:1;height:46px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;padding:0 16px;font-size:15px;}
.drawer-search input:focus{border-color:var(--green);outline:none;box-shadow:0 0 0 4px rgba(30,75,69,.12);}
.drawer-title{font-size:13px;color:var(--muted);margin-bottom:10px;letter-spacing:.06em;}
.drawer-links{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:26px;}
.drawer-links a{background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);padding:12px 14px;font-size:15px;color:var(--ink);}
.drawer-links a.active{background:var(--green);border-color:var(--green);color:#fff;font-weight:600;}
.drawer-cta{display:grid;gap:10px;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-sm);font-size:16px;font-weight:600;
  border:1px solid transparent;transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--orange);color:#fff;border-color:var(--orange);}
.btn-primary:hover{background:#B4552A;border-color:#B4552A;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:transparent;color:var(--green);border-color:var(--green);}
.btn-ghost:hover{background:var(--sand-light);border-color:var(--green-light);color:var(--green-deep);}
.btn-light{background:#fff;color:var(--green-deep);border-color:#fff;}
.btn-light:hover{background:var(--sand-light);color:var(--green-deep);}
.btn-sm{height:40px;padding:0 18px;font-size:15px;}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:14px;line-height:1;background:var(--sand);color:var(--green);
}
.badge-solid{background:var(--green);color:#fff;}
.badge-outline{background:#fff;border:1px solid var(--line);color:var(--muted);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:14px;color:var(--body);
}
.tag:hover{border-color:var(--orange);color:var(--orange);background:var(--sand-light);}
.tag.active{background:var(--green);border-color:var(--green);color:#fff;font-weight:600;}

/* ===== 面包屑 ===== */
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);flex-wrap:wrap;}
.crumb a{color:rgba(255,255,255,.78);}
.crumb a:hover{color:#fff;}
.crumb .sep{opacity:.5;}
.crumb .now{color:#fff;}

/* ===== 页面横幅 ===== */
.page-hero{
  position:relative;color:#fff;overflow:hidden;
  background-color:var(--green-deep);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.55;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(20,53,48,.94) 0%,rgba(20,53,48,.78) 45%,rgba(30,75,69,.62) 100%);
}
.page-hero .container{position:relative;z-index:2;padding-top:44px;padding-bottom:64px;}
.page-hero h1{color:#fff;margin:20px 0 14px;max-width:820px;}
.hero-lead{font-size:17px;line-height:1.85;color:rgba(255,255,255,.82);max-width:680px;margin:0;}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:34px;padding-top:26px;border-top:1px solid rgba(255,255,255,.14);}
.hero-stat b{display:block;font-size:26px;line-height:1.2;color:var(--orange-light);font-weight:700;}
.hero-stat span{font-size:14px;color:rgba(255,255,255,.7);}

/* ===== 通用板块头 ===== */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:34px;flex-wrap:wrap;}
.section-head .lead{max-width:620px;color:var(--muted);font-size:16px;margin:10px 0 0;line-height:1.9;}
.eyebrow{font-size:13px;letter-spacing:.14em;color:var(--orange);text-transform:uppercase;font-weight:600;}

/* ===== 快捷定位 ===== */
.quick-panel{
  background:#fff;border-radius:var(--r-lg);box-shadow:var(--sh-1);
  padding:30px 32px;display:grid;grid-template-columns:1.2fr 1fr;gap:32px;align-items:center;
  margin-top:-42px;position:relative;z-index:5;
}
.quick-panel h2{font-size:20px;margin-bottom:8px;}
.quick-panel p{font-size:15px;color:var(--muted);margin:0;}
.quick-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;}
.quick-item{
  display:flex;align-items:center;gap:10px;background:var(--sand-light);
  border-radius:var(--r-sm);padding:12px 14px;font-size:15px;color:var(--ink);
  border:1px solid transparent;transition:background-color .2s ease,border-color .2s ease,transform .2s ease;
}
.quick-item:hover{background:#fff;border-color:var(--orange-light);color:var(--orange);transform:translateY(-2px);}
.quick-item i{
  width:22px;height:22px;border-radius:6px;background:var(--green);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-style:normal;flex-shrink:0;
}

/* ===== 手风琴 ===== */
.acc-group{margin-bottom:12px;}
.acc-group:last-child{margin-bottom:0;}
.acc-group-head{
  display:flex;align-items:center;gap:14px;margin:0 0 18px;
}
.acc-group-head .dot{width:10px;height:10px;border-radius:3px;background:var(--orange);flex-shrink:0;}
.acc-group-head h2{font-size:22px;}
.acc-group-head .count{font-size:13px;color:var(--muted);}
.acc-list{display:grid;gap:12px;}
.acc-item{
  background:#fff;border-radius:var(--r-md);box-shadow:var(--sh-1);
  overflow:hidden;border-left:3px solid transparent;transition:border-color .25s ease,box-shadow .25s ease;
}
.acc-item:hover{box-shadow:var(--sh-2);}
.acc-item.open{border-left-color:var(--orange);}
.acc-head{
  width:100%;background:none;border:0;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
}
.acc-head:hover{color:var(--green);}
.acc-icon{position:relative;width:20px;height:20px;flex-shrink:0;}
.acc-icon::before,.acc-icon::after{
  content:"";position:absolute;background:var(--green);border-radius:2px;transition:transform .22s ease,background-color .22s ease;
}
.acc-icon::before{left:0;top:9px;width:20px;height:2px;}
.acc-icon::after{left:9px;top:0;width:2px;height:20px;}
.acc-item.open .acc-icon::after{transform:rotate(90deg);}
.acc-item.open .acc-icon::before{background:var(--orange);}
.acc-body{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.acc-body-inner{padding:0 22px 22px;font-size:15px;line-height:1.9;color:var(--body);}
.acc-body-inner ul{display:grid;gap:8px;margin:12px 0 0;}
.acc-body-inner li{position:relative;padding-left:18px;}
.acc-body-inner li::before{content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--green);}

/* ===== 术语表 ===== */
.glossary{background:#fff;border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;}
.glossary-row{display:grid;grid-template-columns:220px 1fr;gap:24px;padding:22px 26px;border-bottom:1px solid var(--split);transition:background-color .2s ease;}
.glossary-row:last-child{border-bottom:0;}
.glossary-row:hover{background:var(--sand-light);}
.glossary-term{font-size:17px;font-weight:600;color:var(--ink);display:flex;align-items:center;gap:10px;}
.glossary-term .badge{height:22px;padding:0 10px;font-size:12px;}
.glossary-def{font-size:15px;line-height:1.9;color:var(--body);margin:0;}

/* ===== 图卡入口 ===== */
.entry-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap);}
.entry-card{
  background:#fff;border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .3s ease,box-shadow .3s ease;
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.entry-card figure{margin:0;overflow:hidden;}
.entry-card figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;transition:transform 1.2s ease;}
.entry-card:hover figure img{transform:scale(1.03);}
.entry-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.entry-body h3{font-size:18px;}
.entry-body p{font-size:15px;line-height:1.85;color:var(--muted);margin:0;}
.entry-body .more{margin-top:auto;font-size:15px;font-weight:600;color:var(--green);}
.entry-body .more:hover{color:var(--orange);text-decoration:underline;text-underline-offset:3px;}

/* ===== CTA 带 ===== */
.cta-band{
  position:relative;overflow:hidden;background:var(--green);color:#fff;border-radius:var(--r-lg);
  padding:52px 56px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-90px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,rgba(200,98,47,.42),transparent 68%);
}
.cta-band::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:100%;
  background-image:repeating-linear-gradient(-45deg,rgba(255,255,255,.05) 0 1px,transparent 1px 14px);
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:10px;}
.cta-band p{margin:0;color:rgba(255,255,255,.82);font-size:16px;max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ===== 页脚 ===== */
.site-footer{background:var(--green-deep);color:rgba(255,255,255,.72);padding:70px 0 26px;margin-top:0;}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.14);}
.footer-brand-row{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);margin:0 0 18px;max-width:360px;}
.footer-contact{display:grid;gap:8px;font-size:14px;}
.footer-contact b{color:rgba(255,255,255,.86);font-weight:600;}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col ul a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-col ul a:hover{color:var(--orange-light);}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags a{
  font-size:13px;color:rgba(255,255,255,.8);background:rgba(255,255,255,.12);
  border-radius:999px;padding:5px 13px;transition:background-color .2s ease,color .2s ease;
}
.footer-tags a:hover{background:var(--orange);color:#fff;}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:18px;padding-top:22px;font-size:13px;color:rgba(255,255,255,.62);flex-wrap:wrap;}
.footer-bottom-links{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom-links a{color:rgba(255,255,255,.62);}
.footer-bottom-links a:hover{color:#fff;}

/* ===== 回到顶部 ===== */
.to-top{
  position:fixed;right:26px;bottom:26px;width:44px;height:44px;border-radius:50%;
  background:var(--green);color:#fff;border:0;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-2);opacity:0;pointer-events:none;transition:opacity .3s ease,transform .3s ease,background-color .2s ease;z-index:70;
}
.to-top.show{opacity:1;pointer-events:auto;}
.to-top:hover{background:var(--orange);transform:translateY(-2px);}

/* ===== 响应式 ===== */
@media (max-width:1200px){
  .container{padding:0 24px;}
  .glossary-row{grid-template-columns:190px 1fr;}
}
@media (max-width:1024px){
  .section{padding:64px 0;}
  .hotline{display:none;}
  .quick-panel{grid-template-columns:1fr;gap:24px;}
  .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-top{grid-template-columns:1fr 1fr;gap:34px;}
  .channel-extra{display:none;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .section{padding:52px 0;}
  h2{font-size:24px;}
  .brand-inner{height:58px;gap:12px;}
  .brand-text{font-size:15px;}
  .site-search{display:none;}
  .header-cta{display:none;}
  .menu-toggle{display:flex;}
  .mobile-drawer{display:block;}
  .channel-inner{height:46px;}
  .channel-list{gap:20px;}
  .channel-list a{line-height:46px;font-size:14px;}
  .page-hero .container{padding-top:30px;padding-bottom:52px;}
  .hero-stats{gap:24px;margin-top:26px;}
  .hero-stat b{font-size:22px;}
  .quick-panel{margin-top:-28px;padding:24px 20px;}
  .quick-grid{grid-template-columns:1fr;}
  .glossary-row{grid-template-columns:1fr;gap:8px;padding:18px 20px;}
  .entry-grid{grid-template-columns:1fr;}
  .cta-band{padding:36px 24px;}
  .cta-band h2{font-size:22px;}
  .acc-head{font-size:16px;padding:16px 18px;}
  .acc-body-inner{padding:0 18px 20px;}
  .footer-top{grid-template-columns:1fr;gap:28px;padding-bottom:34px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .to-top{right:16px;bottom:16px;}
}
@media (max-width:520px){
  h1{font-size:26px;}
  h2{font-size:22px;}
  .section{padding:44px 0;}
  .hero-stat b{font-size:20px;}
  .btn{height:44px;padding:0 20px;font-size:15px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .glossary-term{font-size:16px;}
}