/* roulang page: index */
:root{
  --bg-0:#060B14;
  --bg-1:#0A1220;
  --glass:rgba(18,30,48,.55);
  --glass-soft:rgba(255,255,255,.04);
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(120,200,255,.14);
  --c-primary:#1FD8A4;
  --c-primary-600:#12B98A;
  --c-secondary:#6E7BFF;
  --c-accent:#FFB454;
  --c-danger:#FF6B6B;
  --t-1:#EAF2FF;
  --t-2:#A9BBD1;
  --t-3:#6E819A;
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --r-input:10px;
  --r-img:12px;
  --sh-1:0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 16px 40px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(31,216,164,.35),0 8px 28px rgba(31,216,164,.26);
  --gap:24px;
  --sect:96px;
  --ease:cubic-bezier(.22,.68,.31,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t-2);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{color:var(--t-1);line-height:1.3;font-weight:700}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
::selection{background:rgba(31,216,164,.3);color:#fff}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--sect) 0;position:relative}
.section-alt{background:var(--bg-1)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head h2{font-size:32px;letter-spacing:.2px}
.section-head .lead{margin-top:10px;color:var(--t-3);font-size:15px;max-width:640px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.16em;color:var(--c-primary);text-transform:uppercase;margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--c-primary),transparent)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border:1px solid transparent;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),box-shadow .22s var(--ease);
}
.btn-primary{background:var(--c-primary);color:#04140F;box-shadow:var(--glow)}
.btn-primary:hover{background:#2AE3AF;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(31,216,164,.45),0 12px 34px rgba(31,216,164,.34)}
.btn-primary:active{background:var(--c-primary-600);transform:scale(.98)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--t-1)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px)}
.btn-ghost:active{transform:scale(.98)}
.btn-ghost-sm{background:transparent;border-color:var(--line-strong);color:var(--t-1);height:38px;padding:0 16px;font-size:14px}
.btn-ghost-sm:hover{border-color:var(--c-primary);color:var(--c-primary)}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:15px;
}
.link-arrow span{transition:transform .2s var(--ease)}
.link-arrow:hover span{transform:translateX(4px)}

/* ---------- 导航 ---------- */
.site-header{position:relative;z-index:60}
.topbar{border-bottom:1px solid var(--line);background:linear-gradient(180deg,rgba(10,18,32,.9),rgba(6,11,20,.6))}
.topbar-inner{display:flex;align-items:center;gap:28px;height:64px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{width:38px;height:38px;flex-shrink:0}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{color:var(--t-1);font-size:16px;letter-spacing:.2px;font-weight:700}
.brand-text small{color:var(--t-3);font-size:11px;letter-spacing:.1em}
.searchbox{
  flex:1;max-width:420px;display:flex;align-items:center;gap:10px;height:40px;padding:0 14px;
  background:var(--glass-soft);border:1px solid var(--line-strong);border-radius:var(--r-pill);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.searchbox:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(31,216,164,.14)}
.searchbox svg{width:16px;height:16px;flex-shrink:0;stroke:var(--t-3)}
.searchbox input{flex:1;border:0;background:transparent;outline:none;font-size:14px}
.searchbox input::placeholder{color:var(--t-3)}
.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.channel-bar{
  position:sticky;top:0;z-index:40;
  background:rgba(6,11,20,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.channel-scroll{
  display:flex;align-items:center;gap:6px;height:48px;overflow-x:auto;scroll-snap-type:x proximity;
  -ms-overflow-style:none;scrollbar-width:none;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 24px,#000 calc(100% - 24px),transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 24px,#000 calc(100% - 24px),transparent 100%);
}
.channel-scroll::-webkit-scrollbar{display:none}
.tab{
  position:relative;flex:0 0 auto;scroll-snap-align:start;
  padding:7px 16px;border-radius:var(--r-pill);font-size:14px;color:var(--t-2);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.tab:hover{background:var(--glass-soft);color:var(--t-1)}
.tab.active{background:rgba(31,216,164,.14);color:var(--c-primary);font-weight:600}
.tab.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;border-radius:2px;
  background:var(--c-primary);box-shadow:0 0 10px rgba(31,216,164,.7);
}
.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line-strong);background:transparent;align-items:center;justify-content:center;cursor:pointer}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--t-1);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--t-1)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(86vw,340px);z-index:120;
  background:rgba(10,18,32,.96);backdrop-filter:blur(18px);
  border-left:1px solid var(--line-strong);padding:24px;
  transform:translateX(103%);transition:transform .3s var(--ease);
  display:flex;flex-direction:column;gap:20px;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line-strong);background:transparent;cursor:pointer;color:var(--t-1)}
.drawer nav{display:flex;flex-direction:column;gap:6px}
.drawer nav a{padding:12px 14px;border-radius:12px;color:var(--t-2);font-size:15px}
.drawer nav a:hover,.drawer nav a.active{background:rgba(31,216,164,.12);color:var(--c-primary)}
.drawer-mask{position:fixed;inset:0;background:rgba(4,8,14,.6);backdrop-filter:blur(2px);z-index:110;opacity:0;pointer-events:none;transition:opacity .3s var(--ease)}
.drawer-mask.open{opacity:1;pointer-events:auto}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:96px 0 80px;background:var(--bg-0)}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(560px 420px at 8% 4%,rgba(31,216,164,.12),transparent 62%),
    radial-gradient(620px 460px at 92% 92%,rgba(110,123,255,.12),transparent 64%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-mask-image:radial-gradient(circle at 50% 40%,#000,transparent 78%);
  mask-image:radial-gradient(circle at 50% 40%,#000,transparent 78%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:6fr 4fr;gap:56px;align-items:center;min-height:520px}
.hero h1{font-size:44px;line-height:1.28;letter-spacing:.3px}
.hero h1 em{font-style:normal;color:var(--c-primary)}
.hero-sub{margin-top:20px;font-size:16px;color:var(--t-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-metrics{display:flex;gap:28px;margin-top:44px;flex-wrap:wrap}
.metric{padding-right:28px;border-right:1px solid var(--line)}
.metric:last-child{border-right:0;padding-right:0}
.metric b{display:block;font-size:26px;color:var(--c-primary);font-variant-numeric:tabular-nums;letter-spacing:.4px}
.metric span{font-size:13px;color:var(--t-3)}
.hero-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line-strong);
  box-shadow:0 0 0 1px rgba(31,216,164,.18),0 26px 60px rgba(0,0,0,.5);
  background:var(--glass);
}
.hero-media img{width:100%;height:380px;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,11,20,.34),rgba(6,11,20,.62))}
.float-badge{
  position:absolute;top:18px;left:18px;z-index:3;display:flex;align-items:center;gap:10px;
  padding:10px 14px;border-radius:var(--r-pill);background:rgba(10,18,32,.72);
  border:1px solid var(--line-strong);backdrop-filter:blur(12px);font-size:13px;color:var(--t-1);
}
.float-badge i{width:8px;height:8px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 10px var(--c-primary)}
.float-badge b{color:var(--c-primary);font-variant-numeric:tabular-nums}

/* ---------- 信任条 ---------- */
.trust{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-1);padding:26px 0}
.trust-list{display:grid;grid-template-columns:repeat(6,1fr);gap:18px}
.trust-item{
  display:flex;align-items:center;justify-content:center;gap:8px;text-align:center;
  font-size:13px;color:var(--t-3);filter:grayscale(1);opacity:.62;
  transition:filter .25s var(--ease),opacity .25s var(--ease),color .25s var(--ease);
}
.trust-item:hover{filter:none;opacity:1;color:var(--c-primary)}
.trust-item svg{width:16px;height:16px;stroke:currentColor;flex-shrink:0}

/* ---------- Bento 功能 ---------- */
.bento{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.bento-card{
  position:relative;overflow:hidden;
  background:var(--glass);border:1px solid var(--line-strong);border-radius:var(--r-card);
  padding:24px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-1);transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.bento-card:hover{transform:translateY(-4px);border-color:rgba(31,216,164,.42);box-shadow:var(--sh-2)}
.bento-card.big{grid-column:span 2;grid-row:span 2;display:flex;flex-direction:column;justify-content:space-between;padding:28px}
.bento-card.big .bento-img{position:absolute;inset:0;z-index:0}
.bento-card.big .bento-img img{width:100%;height:100%;object-fit:cover;opacity:.42}
.bento-card.big .bento-img::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,11,20,.5),rgba(6,11,20,.88))}
.bento-card.big>*{position:relative;z-index:2}
.bento-icon{
  width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(31,216,164,.12);border:1px solid rgba(31,216,164,.28);margin-bottom:16px;
}
.bento-icon svg{width:20px;height:20px;stroke:var(--c-primary)}
.bento-icon.violet{background:rgba(110,123,255,.14);border-color:rgba(110,123,255,.3)}
.bento-icon.violet svg{stroke:var(--c-secondary)}
.bento-card h3{font-size:20px;margin-bottom:10px}
.bento-card p{font-size:14px;color:var(--t-2);max-width:46ch}
.big-list{margin-top:24px;display:flex;flex-direction:column;gap:10px}
.big-list li{display:flex;gap:10px;font-size:14px;color:var(--t-2)}
.big-list li::before{content:"";width:6px;height:6px;margin-top:10px;border-radius:50%;background:var(--c-primary);flex-shrink:0}

/* ---------- 场景 zigzag ---------- */
.zig{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;margin-bottom:72px}
.zig:last-child{margin-bottom:0}
.zig.reverse .zig-media{order:2}
.zig-media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line-strong);box-shadow:var(--sh-1)}
.zig-media img{width:100%;height:300px;object-fit:cover}
.zig-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,11,20,.2),rgba(6,11,20,.6))}
.zig-body h3{font-size:24px;margin-bottom:14px}
.zig-body p{font-size:15px;margin-bottom:18px}
.zig-points{display:flex;flex-direction:column;gap:12px}
.zig-points li{
  display:flex;gap:12px;align-items:flex-start;font-size:14px;color:var(--t-2);
  padding:12px 14px;border-radius:12px;background:var(--glass-soft);border:1px solid var(--line);
}
.zig-points li strong{color:var(--t-1);font-weight:600}
.zig-points li i{color:var(--c-primary);font-style:normal;font-weight:700}

/* ---------- 案例 ---------- */
.stats-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line-strong);border-radius:var(--r-card);overflow:hidden;margin-bottom:36px;
}
.stat{background:var(--bg-1);padding:28px 22px;text-align:center}
.stat b{display:block;font-size:30px;color:var(--c-primary);font-variant-numeric:tabular-nums;letter-spacing:.5px}
.stat span{font-size:13px;color:var(--t-3)}
.quote-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.quote-card{
  background:var(--glass);border:1px solid var(--line-strong);border-radius:var(--r-card);padding:26px;
  backdrop-filter:blur(14px);transition:transform .25s var(--ease),border-color .25s var(--ease)}
.quote-card:hover{transform:translateY(-4px);border-color:rgba(110,123,255,.4)}
.quote-card blockquote{margin:0 0 18px;color:var(--t-1);font-size:16px;line-height:1.75}
.quote-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--t-3)}
.quote-avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--c-primary),var(--c-secondary));display:flex;align-items:center;justify-content:center;color:#04140F;font-weight:700;font-size:14px}
.tag-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:16px}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;background:rgba(110,123,255,.14);color:#A9B2FF;border:1px solid rgba(110,123,255,.26);
}
.tag.green{background:rgba(31,216,164,.12);color:var(--c-primary);border-color:rgba(31,216,164,.28)}
.tag.amber{background:rgba(255,180,84,.14);color:var(--c-accent);border-color:rgba(255,180,84,.3)}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.price-card{
  display:flex;flex-direction:column;gap:18px;padding:28px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line-strong);backdrop-filter:blur(14px);
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.price-card:hover{transform:translateY(-4px);border-color:rgba(31,216,164,.4);box-shadow:var(--sh-2)}
.price-card.featured{border-color:rgba(31,216,164,.5);box-shadow:0 0 0 1px rgba(31,216,164,.28),var(--sh-2);transform:translateY(-12px)}
.price-card h3{font-size:20px}
.price-num{font-size:36px;color:var(--c-accent);font-variant-numeric:tabular-nums;letter-spacing:.5px}
.price-num small{font-size:14px;color:var(--t-3);font-weight:400;margin-left:6px}
.price-list{display:flex;flex-direction:column;gap:11px;flex:1}
.price-list li{display:flex;gap:10px;font-size:14px;color:var(--t-2)}
.price-list li::before{content:"✓";color:var(--c-primary);font-weight:700}
.price-note{font-size:12px;color:var(--t-3)}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line-strong);backdrop-filter:blur(14px);
  box-shadow:var(--sh-1);transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(31,216,164,.38);box-shadow:var(--sh-2)}
.news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,11,20,.15),rgba(6,11,20,.5))}
.news-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body p{font-size:14px;color:var(--t-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--t-3);border-top:1px solid var(--line);padding-top:12px}
.empty-state{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;gap:16px;
  padding:56px 24px;border-radius:var(--r-card);background:var(--glass-soft);border:1px dashed var(--line-strong);
  text-align:center;color:var(--t-3);
}
.empty-state svg{width:36px;height:36px;stroke:var(--t-3)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  border-radius:var(--r-card);background:var(--glass);border:1px solid var(--line-strong);overflow:hidden;
  backdrop-filter:blur(14px);transition:border-color .25s var(--ease)}
.faq-item.open{border-color:rgba(31,216,164,.42)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:56px;padding:16px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
  color:var(--t-1);font-size:16px;font-weight:600;
}
.faq-icon{position:relative;width:20px;height:20px;flex-shrink:0;transition:transform .3s var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--t-2);border-radius:2px;transition:background .25s var(--ease)}
.faq-icon::before{top:9px;left:0;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-item.open .faq-icon{transform:rotate(180deg)}
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:var(--c-primary)}
.faq-item.open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s var(--ease)}
.faq-a p{padding:0 22px 20px;font-size:15px;color:var(--t-2);max-width:72ch}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  border:1px solid var(--line-strong);background:var(--glass);
  padding:40px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  backdrop-filter:blur(16px);
}
.cta-band::before{
  content:"";position:absolute;left:-10%;top:-120%;width:520px;height:420px;
  background:radial-gradient(circle,rgba(31,216,164,.2),transparent 66%);pointer-events:none;
}
.cta-band h2{font-size:28px;margin-bottom:10px;position:relative;z-index:2}
.cta-band p{position:relative;z-index:2;font-size:15px;max-width:56ch}
.cta-band .btn{position:relative;z-index:2}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:64px 0 0;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;flex-direction:column;gap:16px}
.footer-brand p{font-size:14px;color:var(--t-3);max-width:36ch}
.footer-col h4{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--t-3);margin-bottom:18px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-link{position:relative;font-size:14px;color:var(--t-2);display:inline-block;width:fit-content}
.footer-link::after{content:"";position:absolute;left:0;bottom:-2px;width:100%;height:1px;background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease)}
.footer-link:hover{color:var(--c-primary)}
.footer-link:hover::after{transform:scaleX(1)}
.footer-contact li{font-size:14px;color:var(--t-2);display:flex;gap:10px}
.footer-contact li b{color:var(--t-1);font-weight:600}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--line);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--t-3);
}
.to-top{
  display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);background:transparent;color:var(--t-2);cursor:pointer;font-size:13px;
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.to-top:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .hero h1{font-size:40px}
}
@media (max-width:1024px){
  :root{--sect:72px}
  .hero-inner{grid-template-columns:1fr;gap:40px;min-height:auto}
  .hero-media img{height:320px}
  .bento{grid-template-columns:repeat(2,1fr)}
  .bento-card.big{grid-column:span 2;grid-row:auto}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .price-grid{grid-template-columns:1fr;max-width:560px;margin:0 auto}
  .price-card.featured{transform:none}
  .trust-list{grid-template-columns:repeat(3,1fr)}
  .stats-bar{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .searchbox{max-width:260px}
}
@media (max-width:768px){
  :root{--sect:56px}
  .container{padding:0 16px}
  .topbar-inner{height:56px;gap:14px}
  .searchbox{display:none}
  .nav-toggle{display:inline-flex}
  .topbar-actions .btn{height:38px;padding:0 14px;font-size:13px}
  .channel-bar{position:static}
  .channel-scroll{height:44px;padding:0 16px}
  .hero{padding:56px 0 48px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:15px}
  .hero-media img{height:230px}
  .hero-actions .btn{flex:1 1 auto}
  .hero-metrics{gap:18px}
  .metric{padding-right:18px}
  .metric b{font-size:22px}
  .section-head h2{font-size:22px}
  .zig{grid-template-columns:1fr;gap:28px;margin-bottom:48px}
  .zig.reverse .zig-media{order:0}
  .zig-media img{height:210px}
  .zig-body h3{font-size:20px}
  .quote-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .trust-list{grid-template-columns:repeat(2,1fr)}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px}
  .cta-band h2{font-size:22px}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .bento{grid-template-columns:1fr}
  .bento-card.big{grid-column:span 1}
}
@media (max-width:520px){
  .hero h1{font-size:25px}
  .hero-metrics{flex-direction:column;gap:14px}
  .metric{border-right:0;padding-right:0;border-bottom:1px solid var(--line);padding-bottom:12px;width:100%}
  .metric:last-child{border-bottom:0;padding-bottom:0}
  .stats-bar{grid-template-columns:1fr}
  .topbar-actions .btn{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}

/* roulang page: article */
:root{
  --bg-0:#060B14;
  --bg-1:#0A1220;
  --c-primary:#1FD8A4;
  --c-primary-600:#12B98A;
  --c-secondary:#6E7BFF;
  --c-accent:#FFB454;
  --t-1:#EAF2FF;
  --t-2:#A9BBD1;
  --t-3:#6E819A;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --glass:rgba(18,30,48,.55);
  --glass-2:rgba(255,255,255,.04);
  --glass-line:rgba(120,200,255,.14);
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --r-input:10px;
  --r-img:12px;
  --sh-1:0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 16px 40px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(31,216,164,.35), 0 8px 28px rgba(31,216,164,.26);
  --glow-soft:0 0 0 1px rgba(31,216,164,.18), 0 10px 30px rgba(0,0,0,.45);
  --maxw:1200px;
  --sec:96px;
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",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:16px;
  line-height:1.8;
  color:var(--t-2);
  background:var(--bg-0);
  background-image:
    radial-gradient(680px 420px at 6% -6%, rgba(31,216,164,.12), transparent 65%),
    radial-gradient(720px 460px at 98% 4%, rgba(110,123,255,.12), transparent 66%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--t-1);line-height:1.3;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(31,216,164,.28);color:#fff}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--r-btn);font-size:15px;font-weight:600;white-space:nowrap;transition:transform .18s ease,box-shadow .22s ease,background-color .2s ease,color .2s ease,border-color .2s ease}
.btn-primary{background:var(--c-primary);color:#052018;box-shadow:var(--glow)}
.btn-primary:hover{background:#25E7B0;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(31,216,164,.45),0 14px 34px rgba(31,216,164,.34)}
.btn-primary:active{transform:scale(.98);background:var(--c-primary-600)}
.btn-secondary{background:transparent;border:1px solid var(--glass-line);color:var(--t-1)}
.btn-secondary:hover{border-color:rgba(31,216,164,.6);color:var(--c-primary);transform:translateY(-1px)}
.btn-secondary:active{transform:scale(.98)}
.btn-ghost{height:auto;padding:0;color:var(--c-primary);font-weight:600;gap:6px}
.btn-ghost .arw{transition:transform .2s ease}
.btn-ghost:hover .arw{transform:translateX(4px)}
.btn[disabled]{opacity:.4;cursor:not-allowed}

/* ---------- 导航 ---------- */
.site-header{position:relative;z-index:60}
.topbar{background:rgba(6,11,20,.86);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.topbar-inner{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{width:38px;height:38px;flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text b{font-size:16px;color:var(--t-1);letter-spacing:.2px}
.brand-text small{font-size:11px;color:var(--t-3);letter-spacing:.6px}
.searchbox{flex:1 1 auto;max-width:460px;display:flex;align-items:center;gap:10px;height:40px;padding:0 14px;border-radius:var(--r-pill);background:var(--glass-2);border:1px solid var(--glass-line);transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease}
.searchbox svg{width:17px;height:17px;stroke:var(--t-3);fill:none;stroke-linecap:round;flex:0 0 auto}
.searchbox input{flex:1;border:0;background:transparent;color:var(--t-1);font-size:14px;outline:none}
.searchbox input::placeholder{color:var(--t-3)}
.searchbox:focus-within{border-color:rgba(31,216,164,.55);box-shadow:0 0 0 4px rgba(31,216,164,.12);background:rgba(255,255,255,.06)}
.topbar-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--glass-line);background:var(--glass-2);position:relative}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{position:absolute;left:50%;width:18px;height:2px;background:var(--t-1);border-radius:2px;transform:translateX(-50%);transition:.25s}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}

.channel-bar{background:rgba(6,11,20,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.channel-scroll{display:flex;align-items:center;gap:8px;height:48px;overflow-x:auto;scroll-snap-type:x proximity;scrollbar-width:none;-ms-overflow-style:none}
.channel-scroll::-webkit-scrollbar{display:none}
.tab{scroll-snap-align:start;flex:0 0 auto;display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);font-size:14px;color:var(--t-2);border:1px solid transparent;transition:background-color .2s ease,color .2s ease,border-color .2s ease}
.tab:hover{background:var(--glass-2);color:var(--t-1);border-color:var(--glass-line)}
.tab.active{background:rgba(31,216,164,.12);color:var(--c-primary);border-color:rgba(31,216,164,.32);box-shadow:inset 0 -2px 0 rgba(31,216,164,.85)}

/* ---------- 主体通用 ---------- */
.main{padding:32px 0 0}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:22px}
.crumbs a{color:var(--t-3);transition:color .2s ease}
.crumbs a:hover{color:var(--c-primary)}
.crumbs .sep{opacity:.5}
.crumbs .now{color:var(--t-2);overflow:hidden;text-overflow:ellipsis}

.article-head{max-width:860px}
.pill{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:12px;letter-spacing:.4px;background:rgba(110,123,255,.14);border:1px solid rgba(110,123,255,.32);color:#B9C1FF}
.pill.is-primary{background:rgba(31,216,164,.12);border-color:rgba(31,216,164,.32);color:var(--c-primary)}
.pill.is-accent{background:rgba(255,180,84,.12);border-color:rgba(255,180,84,.32);color:var(--c-accent)}
.article-head h1{font-size:44px;line-height:1.28;margin:16px 0 18px;max-width:900px;overflow-wrap:anywhere}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13px;color:var(--t-3);padding-bottom:22px;border-bottom:1px solid var(--line)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--t-3);opacity:.6}
.meta-row .num{color:var(--c-primary);font-variant-numeric:tabular-nums;font-weight:600}
.share-row{display:flex;align-items:center;gap:10px;margin-left:auto}
.share-btn{height:32px;padding:0 12px;border-radius:var(--r-pill);border:1px solid var(--glass-line);background:var(--glass-2);font-size:13px;color:var(--t-2);transition:.2s}
.share-btn:hover{color:var(--c-primary);border-color:rgba(31,216,164,.45)}

/* ---------- 布局 ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start;padding:48px 0 0}
.article-card{background:var(--glass);border:1px solid var(--glass-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:40px 44px;backdrop-filter:blur(14px)}
.article-body{max-width:760px;font-size:16px;line-height:1.8;color:var(--t-2)}
.article-body h2{font-size:26px;line-height:1.35;margin:44px 0 16px;padding-left:14px;border-left:3px solid var(--c-primary)}
.article-body h2:first-child{margin-top:0}
.article-body h3{font-size:20px;margin:32px 0 12px}
.article-body p{margin:0 0 18px}
.article-body a{color:var(--c-primary);border-bottom:1px solid rgba(31,216,164,.35);transition:.2s}
.article-body a:hover{color:#25E7B0;border-bottom-color:#25E7B0}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body ul li,.article-body ol li{margin:8px 0;position:relative}
.article-body ul li::marker{color:var(--c-primary)}
.article-body ol{list-style:decimal}
.article-body strong{color:var(--t-1)}
.article-body img{width:100%;border-radius:var(--r-img);margin:22px 0;box-shadow:var(--sh-1)}
.article-body figure{margin:22px 0}
.article-body figcaption{font-size:13px;color:var(--t-3);text-align:center;margin-top:10px}
.article-body blockquote{margin:24px 0;padding:18px 22px;background:var(--glass-2);border-left:3px solid var(--c-secondary);border-radius:0 var(--r-card) var(--r-card) 0;color:var(--t-1)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0}
.article-body code{background:rgba(110,123,255,.16);color:#C9D2FF;padding:2px 6px;border-radius:6px;font-size:14px}
.article-body pre{background:#0B1524;border:1px solid var(--line);border-radius:var(--r-img);padding:16px 18px;overflow:auto;margin:22px 0}
.article-body pre code{background:none;padding:0;color:#D6E2F5}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;font-variant-numeric:tabular-nums}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left}
.article-body th{background:var(--glass-2);color:var(--t-1);font-weight:600}
.article-body tr:nth-child(even) td{background:rgba(255,255,255,.02)}

.article-empty{text-align:center;padding:56px 24px}
.article-empty .icon{width:64px;height:64px;margin:0 auto 18px;border-radius:20px;display:grid;place-items:center;background:rgba(110,123,255,.14);border:1px solid rgba(110,123,255,.3);color:#B9C1FF;font-size:26px}
.article-empty h2{font-size:22px;margin-bottom:10px}
.article-empty p{margin-bottom:22px}

/* ---------- 标签 ---------- */
.tags-block{margin-top:36px;padding-top:26px;border-top:1px solid var(--line)}
.tags-block h3{font-size:14px;color:var(--t-3);letter-spacing:.6px;margin-bottom:14px;font-weight:600}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);font-size:13px;color:var(--t-2);background:var(--glass-2);border:1px solid var(--glass-line);transition:.2s}
.chip:hover{color:var(--c-primary);border-color:rgba(31,216,164,.45);transform:translateY(-1px)}

/* ---------- 侧栏 ---------- */
.side{position:sticky;top:76px;display:flex;flex-direction:column;gap:20px}
.side-toggle{display:none}
.side-card{background:var(--glass);border:1px solid var(--glass-line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);backdrop-filter:blur(14px)}
.side-card h3{font-size:14px;color:var(--t-1);letter-spacing:.4px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:3px;height:14px;border-radius:2px;background:linear-gradient(180deg,var(--c-primary),var(--c-secondary))}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{display:block;font-size:14px;color:var(--t-2);padding:7px 10px;border-radius:8px;border-left:2px solid transparent;transition:.2s;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.toc-list a:hover{background:var(--glass-2);color:var(--c-primary);border-left-color:var(--c-primary)}
.toc-list a.lv3{padding-left:22px;font-size:13px;color:var(--t-3)}
.side-links{display:flex;flex-direction:column;gap:2px}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:14px;color:var(--t-2);padding:9px 10px;border-radius:8px;transition:.2s}
.side-links a:hover{background:var(--glass-2);color:var(--c-primary);transform:translateX(2px)}
.side-note{font-size:13px;color:var(--t-3);line-height:1.75}

/* ---------- 翻页 ---------- */
.pager{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:44px}
.pager-card{display:flex;flex-direction:column;gap:8px;padding:22px;border-radius:var(--r-card);background:var(--glass);border:1px solid var(--glass-line);box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .25s ease,border-color .25s ease}
.pager-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2),var(--glow-soft);border-color:rgba(31,216,164,.35)}
.pager-card small{font-size:12px;color:var(--t-3);letter-spacing:.6px}
.pager-card b{font-size:16px;color:var(--t-1);font-weight:600;line-height:1.5}
.pager-card span{font-size:13px;color:var(--t-3)}

/* ---------- 相关推荐 ---------- */
.section{padding:var(--sec) 0 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.sec-head h2{font-size:32px}
.sec-head p{font-size:14px;color:var(--t-3);margin-top:8px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{background:var(--glass);border:1px solid var(--glass-line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .25s ease,border-color .25s ease,background-color .25s ease;backdrop-filter:blur(14px)}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2),var(--glow-soft);border-color:rgba(31,216,164,.35)}
.thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .thumb img{transform:scale(1.05)}
.thumb::after{content:"";position:absolute;inset:0;background:rgba(4,8,16,.4)}
.card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:18px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:14px;color:var(--t-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t-3);margin-top:auto;padding-top:8px;border-top:1px solid var(--line)}

/* ---------- CTA ---------- */
.cta-band{margin-top:var(--sec)}
.cta-inner{position:relative;overflow:hidden;border-radius:var(--r-card);border:1px solid var(--glass-line);background:var(--glass);backdrop-filter:blur(14px);box-shadow:var(--sh-1);padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.cta-inner::before{content:"";position:absolute;width:520px;height:520px;right:-160px;top:-260px;background:radial-gradient(circle,rgba(31,216,164,.22),transparent 62%);pointer-events:none}
.cta-inner h2{font-size:30px;margin-bottom:10px}
.cta-inner p{font-size:15px;color:var(--t-2);max-width:640px}
.cta-actions{display:flex;gap:14px;flex:0 0 auto;position:relative}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:var(--sec);background:var(--bg-1);border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding:64px 0 40px}
.footer-brand p{font-size:14px;color:var(--t-3);margin-top:16px;max-width:340px;line-height:1.8}
.footer-col h4{font-size:13px;color:var(--t-3);letter-spacing:1.2px;margin-bottom:16px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-link{font-size:14px;color:var(--t-2);position:relative;transition:color .2s ease}
.footer-link::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--c-primary);transition:width .25s ease}
.footer-link:hover{color:var(--c-primary)}
.footer-link:hover::after{width:100%}
.footer-contact li{font-size:14px;color:var(--t-2)}
.footer-contact b{color:var(--t-3);font-weight:500}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0 28px;border-top:1px solid var(--line);font-size:13px;color:var(--t-3);flex-wrap:wrap}
.to-top{height:36px;padding:0 16px;border-radius:var(--r-pill);border:1px solid var(--glass-line);background:var(--glass-2);font-size:13px;color:var(--t-2);transition:.2s}
.to-top:hover{color:var(--c-primary);border-color:rgba(31,216,164,.45);transform:translateY(-2px)}

/* ---------- 抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(3,6,12,.62);backdrop-filter:blur(4px);opacity:0;visibility:hidden;transition:.25s;z-index:80}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;height:100%;width:296px;max-width:86vw;background:rgba(10,18,32,.96);backdrop-filter:blur(18px);border-left:1px solid var(--glass-line);transform:translateX(102%);transition:transform .3s ease;z-index:90;padding:22px;display:flex;flex-direction:column;gap:18px;overflow-y:auto}
.drawer.open{transform:translateX(0)}
.drawer h4{font-size:13px;color:var(--t-3);letter-spacing:1px}
.drawer nav{display:flex;flex-direction:column;gap:6px}
.drawer nav a{padding:12px 14px;border-radius:12px;font-size:15px;color:var(--t-2);background:var(--glass-2);border:1px solid transparent;transition:.2s}
.drawer nav a:hover,.drawer nav a.active{color:var(--c-primary);border-color:rgba(31,216,164,.35)}
.drawer .close-btn{align-self:flex-end;height:36px;padding:0 14px;border-radius:var(--r-pill);border:1px solid var(--glass-line);font-size:13px;color:var(--t-2)}

/* ---------- 断点 ---------- */
@media (max-width:1280px){
  .layout{grid-template-columns:minmax(0,1fr) 272px;gap:36px}
  .article-head h1{font-size:38px}
}
@media (max-width:1024px){
  :root{--sec:72px}
  .layout{grid-template-columns:1fr;gap:28px}
  .side{position:static;order:-1}
  .side-toggle{display:flex;width:100%;align-items:center;justify-content:space-between;height:46px;padding:0 16px;border-radius:var(--r-card);background:var(--glass);border:1px solid var(--glass-line);font-size:14px;color:var(--t-1)}
  .side-inner{display:none;flex-direction:column;gap:20px;padding-top:14px}
  .side-inner.open{display:flex}
  .article-card{padding:30px 26px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .sec-head h2{font-size:26px}
  .article-head h1{font-size:34px}
}
@media (max-width:768px){
  :root{--sec:56px}
  .container{padding:0 16px}
  .topbar-inner{height:56px;gap:12px}
  .searchbox{display:none}
  .nav-toggle{display:block}
  .brand-text small{display:none}
  .brand-text b{font-size:15px}
  .channel-bar{display:none}
  .topbar-actions .btn-primary{height:38px;padding:0 14px;font-size:14px}
  .article-head h1{font-size:27px;margin:12px 0 14px}
  .article-card{padding:22px 18px}
  .article-body h2{font-size:21px;margin:32px 0 12px}
  .article-body h3{font-size:18px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .pager{grid-template-columns:1fr;gap:16px}
  .grid-3{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:stretch;padding:28px 22px}
  .cta-inner h2{font-size:22px}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 28px}
  .footer-brand{grid-column:1/-1}
  .footer-bottom{justify-content:center;text-align:center}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px}
  .share-row{margin-left:0}
}
@media (max-width:520px){
  .article-head h1{font-size:24px}
  .meta-row{gap:8px 12px}
  .footer-grid{grid-template-columns:1fr}
  .cta-inner h2{font-size:20px}
  .side-card{padding:18px}
}

/* roulang page: category1 */
:root{
  --bg-0:#060B14;
  --bg-1:#0A1220;
  --c-primary:#1FD8A4;
  --c-primary-600:#12B98A;
  --c-secondary:#6E7BFF;
  --c-accent:#FFB454;
  --t-1:#EAF2FF;
  --t-2:#A9BBD1;
  --t-3:#6E819A;
  --line:rgba(255,255,255,.08);
  --glass:rgba(18,30,48,.55);
  --glass-2:rgba(255,255,255,.04);
  --stroke:rgba(120,200,255,.14);
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --r-img:12px;
  --sh-1:0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 16px 40px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(31,216,164,.35), 0 8px 28px rgba(31,216,164,.26);
  --container:1200px;
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",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:16px;
  line-height:1.8;
  color:var(--t-2);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 520px at 8% -10%, rgba(31,216,164,.11), transparent 62%),
    radial-gradient(820px 520px at 96% 2%, rgba(110,123,255,.12), transparent 64%);
  background-attachment:fixed;
  background-repeat:no-repeat;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
h1,h2,h3,h4{margin:0;color:var(--t-1);font-weight:700;line-height:1.3;letter-spacing:.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
figure{margin:0}
::selection{background:rgba(31,216,164,.28);color:#fff}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section.tight{padding:72px 0}
.section-title{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-title h2{font-size:clamp(22px,2.4vw,32px)}
.section-title p{margin-top:10px;max-width:640px;color:var(--t-3);font-size:14px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.12em;color:var(--c-primary);text-transform:uppercase;margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--c-primary),var(--c-secondary))}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .2s ease,box-shadow .25s ease,background-color .2s ease,color .2s ease,border-color .2s ease;white-space:nowrap}
.btn-primary{background:var(--c-primary);color:#04231B;box-shadow:var(--glow)}
.btn-primary:hover{background:var(--c-primary-600);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(31,216,164,.4),0 12px 30px rgba(31,216,164,.3)}
.btn-primary:active{transform:scale(.98)}
.btn-secondary{background:rgba(255,255,255,.02);border-color:var(--stroke);color:var(--t-1)}
.btn-secondary:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px)}
.btn-ghost{height:auto;padding:0;color:var(--c-primary);font-weight:600}
.btn-ghost .arrow{transition:transform .2s ease}
.btn-ghost:hover .arrow{transform:translateX(4px)}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* 徽章与标签 */
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.02em}
.badge-primary{background:rgba(31,216,164,.12);color:var(--c-primary);border:1px solid rgba(31,216,164,.28)}
.badge-secondary{background:rgba(110,123,255,.14);color:#9AA3FF;border:1px solid rgba(110,123,255,.3)}
.badge-accent{background:rgba(255,180,84,.13);color:var(--c-accent);border:1px solid rgba(255,180,84,.3)}

/* 顶部导航 */
.site-header{position:relative;z-index:50}
.topbar{border-bottom:1px solid var(--line);background:rgba(6,11,20,.72);backdrop-filter:blur(14px)}
.topbar-inner{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{width:40px;height:40px;flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text b{color:var(--t-1);font-size:16px;letter-spacing:.4px}
.brand-text small{color:var(--t-3);font-size:12px;letter-spacing:.06em}
.searchbox{display:flex;align-items:center;gap:10px;flex:1;max-width:420px;height:40px;padding:0 16px;border-radius:var(--r-pill);background:var(--glass-2);border:1px solid var(--stroke);color:var(--t-3);transition:border-color .2s ease,box-shadow .2s ease}
.searchbox:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(31,216,164,.12)}
.searchbox svg{width:17px;height:17px;stroke:currentColor;fill:none;flex:none}
.searchbox input{flex:1;min-width:0;border:0;background:none;outline:none;font-size:14px;color:var(--t-1)}
.searchbox input::placeholder{color:var(--t-3)}
.topbar-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--stroke);background:var(--glass-2);align-items:center;justify-content:center}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{display:block;width:18px;height:2px;border-radius:2px;background:var(--t-1);transition:transform .2s ease}
.nav-toggle span{position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.channel-bar{position:sticky;top:0;z-index:40;background:rgba(6,11,20,.9);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.channel-scroll{display:flex;gap:8px;overflow-x:auto;padding:8px 0;scroll-snap-type:x proximity;scrollbar-width:none;-ms-overflow-style:none}
.channel-scroll::-webkit-scrollbar{display:none}
.tab{position:relative;scroll-snap-align:start;white-space:nowrap;padding:8px 16px;border-radius:var(--r-pill);font-size:14px;color:var(--t-2);transition:background-color .2s ease,color .2s ease}
.tab:hover{background:var(--glass-2);color:var(--t-1)}
.tab.active{background:rgba(31,216,164,.12);color:var(--c-primary);font-weight:600}
.tab.active::after{content:"";position:absolute;left:50%;bottom:-9px;transform:translateX(-50%);width:26px;height:2px;border-radius:2px;background:var(--c-primary);box-shadow:0 0 10px rgba(31,216,164,.8)}

/* 抽屉 */
.drawer{position:fixed;top:0;right:0;height:100%;width:min(88vw,340px);background:rgba(10,18,32,.96);backdrop-filter:blur(16px);border-left:1px solid var(--stroke);transform:translateX(102%);transition:transform .28s ease;z-index:70;padding:24px;display:flex;flex-direction:column;gap:18px;overflow-y:auto}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--stroke);color:var(--t-1);font-size:18px;line-height:1}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-nav a{padding:12px 14px;border-radius:12px;font-size:15px;color:var(--t-2);border:1px solid transparent}
.drawer-nav a:hover{background:var(--glass-2);color:var(--t-1)}
.drawer-nav a.active{background:rgba(31,216,164,.12);color:var(--c-primary);border-color:rgba(31,216,164,.26);font-weight:600}
.drawer .searchbox{max-width:none;width:100%}
.mask{position:fixed;inset:0;background:rgba(3,7,14,.6);opacity:0;visibility:hidden;transition:opacity .25s ease;z-index:60}
.mask.open{opacity:1;visibility:visible}

/* 页面横幅 */
.page-banner{position:relative;overflow:hidden;border-bottom:1px solid var(--line);background:
  radial-gradient(600px 340px at 4% 0%, rgba(31,216,164,.13), transparent 60%),
  radial-gradient(560px 340px at 100% 10%, rgba(110,123,255,.14), transparent 62%)}
.page-banner::after{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:24px 24px;opacity:.5;mask-image:radial-gradient(70% 70% at 50% 40%,#000,transparent)}
.banner-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:48px;align-items:center;padding:72px 0}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t-3);margin-bottom:18px}
.crumb a:hover{color:var(--c-primary)}
.crumb em{font-style:normal;color:var(--t-2)}
.banner-copy h1{font-size:clamp(28px,4vw,44px);line-height:1.25;margin-bottom:16px}
.banner-copy h1 span{background:linear-gradient(100deg,var(--c-primary),var(--c-secondary));-webkit-background-clip:text;background-clip:text;color:transparent}
.banner-lead{max-width:600px;font-size:16px;color:var(--t-2)}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.banner-media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--stroke);box-shadow:var(--sh-2);aspect-ratio:4/3}
.banner-media img{width:100%;height:100%;object-fit:cover}
.banner-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,11,20,.25),rgba(6,11,20,.72))}
.banner-media figcaption{position:absolute;left:20px;right:20px;bottom:18px;z-index:2;font-size:13px;color:var(--t-2)}
.banner-media .float-badge{position:absolute;top:18px;left:18px;z-index:2;background:rgba(6,11,20,.72);backdrop-filter:blur(10px);border:1px solid var(--stroke);border-radius:var(--r-pill);padding:6px 14px;font-size:12px;color:var(--c-primary);font-weight:600}

/* 指标条 */
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding:0 0 8px}
.metric{display:flex;align-items:center;gap:14px;padding:18px 22px;border-radius:var(--r-card);background:var(--glass);border:1px solid var(--stroke);box-shadow:var(--sh-1)}
.metric b{font-size:24px;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1.2}
.metric span{font-size:13px;color:var(--t-3)}

/* 锚点行 */
.anchor-row{display:flex;flex-wrap:wrap;gap:10px;padding:26px 0 0}
.anchor-pill{display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:var(--r-pill);font-size:14px;color:var(--t-2);background:var(--glass-2);border:1px solid var(--stroke);transition:all .2s ease}
.anchor-pill:hover{color:var(--c-primary);border-color:rgba(31,216,164,.45);transform:translateY(-2px)}

/* 图文分栏 */
.split{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:56px;align-items:center}
.split + .split{margin-top:72px}
.split.reverse .split-media{order:2}
.split-copy h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:16px}
.split-copy p{color:var(--t-2);font-size:15px}
.split-copy p + p{margin-top:14px}
.split-list{margin-top:22px;display:grid;gap:12px}
.split-list li{position:relative;padding-left:26px;font-size:15px;color:var(--t-2)}
.split-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:3px;background:linear-gradient(135deg,var(--c-primary),var(--c-secondary))}
.split-media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--stroke);box-shadow:var(--sh-1);aspect-ratio:16/11}
.split-media img{width:100%;height:100%;object-fit:cover}
.split-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,11,20,.18),rgba(6,11,20,.62))}
.split-media figcaption{position:absolute;left:18px;bottom:16px;z-index:2;font-size:13px;color:var(--t-2);max-width:80%}

/* Bento */
.bento{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-auto-rows:minmax(176px,auto);gap:24px}
.bento-item{position:relative;padding:26px;border-radius:var(--r-card);background:var(--glass);border:1px solid var(--stroke);box-shadow:var(--sh-1);transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;overflow:hidden}
.bento-item:hover{transform:translateY(-4px);border-color:rgba(31,216,164,.35);box-shadow:var(--sh-2)}
.bento-item h3{font-size:18px;margin-bottom:10px}
.bento-item p{font-size:14px;color:var(--t-2)}
.bento-large{grid-column:span 2;grid-row:span 2;display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(150deg,rgba(31,216,164,.1),rgba(110,123,255,.08) 55%,rgba(18,30,48,.6));}
.bento-large h3{font-size:22px}
.bento-list{margin-top:18px;display:grid;gap:12px}
.bento-list li{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:var(--t-2);padding:12px 14px;border-radius:12px;background:rgba(6,11,20,.35);border:1px solid var(--line)}
.bento-list li b{color:var(--t-1);font-weight:600}
.bento-index{font-size:12px;color:var(--c-primary);font-variant-numeric:tabular-nums;letter-spacing:.1em}

/* 角色卡 */
.role-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.role-card{padding:28px;border-radius:var(--r-card);background:var(--glass);border:1px solid var(--stroke);box-shadow:var(--sh-1);transition:transform .25s ease,border-color .25s ease}
.role-card:hover{transform:translateY(-4px);border-color:rgba(110,123,255,.4)}
.role-card h3{font-size:19px;margin:14px 0 10px}
.role-card p{font-size:14px;color:var(--t-2)}
.role-card ul{margin-top:16px;display:grid;gap:10px}
.role-card li{font-size:14px;color:var(--t-3);padding-left:20px;position:relative}
.role-card li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--c-secondary)}

/* FAQ */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{border-radius:var(--r-card);background:var(--glass);border:1px solid var(--stroke);overflow:hidden;transition:border-color .25s ease}
.faq-item.open{border-color:rgba(31,216,164,.4)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--t-1);transition:color .2s ease}
.faq-q:hover{color:var(--c-primary)}
.faq-icon{position:relative;flex:none;width:22px;height:22px;border-radius:50%;border:1px solid var(--stroke);transition:transform .3s ease,border-color .3s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--t-2);transform:translate(-50%,-50%);transition:background-color .25s ease}
.faq-icon::before{width:10px;height:1.6px}
.faq-icon::after{width:1.6px;height:10px}
.faq-item.open .faq-icon{transform:rotate(180deg);border-color:var(--c-primary)}
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:var(--c-primary)}
.faq-item.open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a p{padding:0 24px 22px;font-size:15px;color:var(--t-2)}

/* CTA 带 */
.cta-band{position:relative;overflow:hidden;border-radius:20px;border:1px solid var(--stroke);background:linear-gradient(120deg,rgba(31,216,164,.12),rgba(18,30,48,.7) 45%,rgba(110,123,255,.12));box-shadow:var(--sh-2);padding:40px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.cta-band::after{content:"";position:absolute;right:-60px;top:-80px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(31,216,164,.28),transparent 68%)}
.cta-band h2{font-size:clamp(20px,2.2vw,28px);margin-bottom:10px}
.cta-band p{font-size:15px;color:var(--t-2);max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2}

/* 页脚 */
.site-footer{margin-top:96px;border-top:1px solid var(--line);background:rgba(10,18,32,.72)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 40px}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--t-3);max-width:340px}
.footer-col h4{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--t-3);margin-bottom:18px}
.footer-col ul{display:grid;gap:12px}
.footer-link{position:relative;display:inline-block;font-size:14px;color:var(--t-2);transition:color .2s ease}
.footer-link::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--c-primary);transition:width .25s ease}
.footer-link:hover{color:var(--c-primary)}
.footer-link:hover::after{width:100%}
.footer-contact li{font-size:14px;color:var(--t-3)}
.footer-contact b{color:var(--t-2);font-weight:600}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 0;border-top:1px solid var(--line);font-size:13px;color:var(--t-3);flex-wrap:wrap}
.to-top{border:1px solid var(--stroke);background:var(--glass-2);border-radius:var(--r-pill);padding:8px 16px;font-size:13px;color:var(--t-2);transition:all .2s ease}
.to-top:hover{color:var(--c-primary);border-color:rgba(31,216,164,.45)}

section[id]{scroll-margin-top:76px}

@media (max-width:1024px){
  .section{padding:72px 0}
  .banner-inner{grid-template-columns:1fr;gap:36px;padding:56px 0}
  .banner-media{aspect-ratio:16/10}
  .metrics{grid-template-columns:1fr}
  .split{gap:36px}
  .bento{grid-template-columns:repeat(2,minmax(0,1fr))}
  .bento-large{grid-column:span 2;grid-row:span 1}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .topbar-inner{height:56px;gap:12px}
  .searchbox{display:none}
  .nav-toggle{display:inline-flex}
  .channel-bar{display:none}
  .section{padding:56px 0}
  .section-title{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px}
  .split,.split.reverse{grid-template-columns:1fr}
  .split.reverse .split-media{order:0}
  .split + .split{margin-top:48px}
  .role-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;padding:48px 0 32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .bento{grid-template-columns:1fr}
  .bento-large{grid-column:span 1}
  .bento-item{padding:20px}
  .metric{padding:14px 16px}
  .btn{width:100%}
  .banner-actions{width:100%}
  .anchor-pill{font-size:13px;padding:8px 14px}
}

/* roulang page: category3 */
:root{
  --bg-0:#060B14;
  --bg-1:#0A1220;
  --c-primary:#1FD8A4;
  --c-primary-600:#12B98A;
  --c-secondary:#6E7BFF;
  --c-accent:#FFB454;
  --t-1:#EAF2FF;
  --t-2:#A9BBD1;
  --t-3:#6E819A;
  --line:rgba(255,255,255,.08);
  --glass:rgba(18,30,48,.55);
  --glass-lite:rgba(255,255,255,.04);
  --glass-border:rgba(120,200,255,.14);
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --r-img:12px;
  --sh-1:0 8px 24px rgba(0,0,0,.35);
  --sh-2:0 16px 40px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(31,216,164,.35),0 8px 28px rgba(31,216,164,.26);
  --glow-soft:0 0 0 1px rgba(31,216,164,.18),0 10px 30px rgba(31,216,164,.12);
  --section-gap:96px;
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html,body{margin:0;padding:0;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  font-family:var(--font);
  background:var(--bg-0);
  color:var(--t-2);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img);object-fit:cover;}
a{color:inherit;text-decoration:none;transition:color .22s ease,border-color .22s ease,opacity .22s ease;}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:0;background:none;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--t-1);line-height:1.3;font-weight:700;letter-spacing:.2px;}
p{margin:0;}
svg{display:block;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
}
.btn-primary{background:var(--c-primary);color:#04211A;box-shadow:var(--glow);}
.btn-primary:hover{background:#2AE2B0;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(31,216,164,.45),0 12px 32px rgba(31,216,164,.32);}
.btn-primary:active{background:var(--c-primary-600);transform:scale(.98);}
.btn-ghost{background:transparent;border:1px solid var(--glass-border);color:var(--t-1);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px);}
.btn-ghost:active{transform:scale(.98);}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:15px;}
.btn-text span{transition:transform .22s ease;}
.btn-text:hover span{transform:translateX(4px);}
.btn[disabled]{opacity:.4;cursor:not-allowed;}

/* ---------- 标签 ---------- */
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:13px;line-height:1.6;border:1px solid var(--glass-border);
  background:var(--glass-lite);color:var(--t-2);
}
.pill-primary{color:var(--c-primary);border-color:rgba(31,216,164,.35);background:rgba(31,216,164,.1);}
.pill-secondary{color:#A8AFFF;border-color:rgba(110,123,255,.35);background:rgba(110,123,255,.1);}
.pill-accent{color:var(--c-accent);border-color:rgba(255,180,84,.35);background:rgba(255,180,84,.1);}

/* ---------- 头部导航 ---------- */
.site-header{position:relative;z-index:60;background:rgba(6,11,20,.86);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);}
.topbar{height:64px;border-bottom:1px solid var(--line);}
.topbar-inner{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{width:40px;height:40px;flex-shrink:0;}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text b{font-size:16px;color:var(--t-1);letter-spacing:.3px;}
.brand-text small{font-size:11px;color:var(--t-3);letter-spacing:1px;}
.searchbox{
  flex:1;max-width:420px;height:40px;display:flex;align-items:center;gap:10px;
  padding:0 16px;border-radius:var(--r-pill);
  background:var(--glass-lite);border:1px solid var(--glass-border);
  transition:border-color .22s ease,box-shadow .22s ease;
}
.searchbox:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(31,216,164,.14);}
.searchbox svg{width:16px;height:16px;stroke:var(--t-3);flex-shrink:0;}
.searchbox input{flex:1;background:none;border:0;outline:none;color:var(--t-1);font-size:14px;}
.searchbox input::placeholder{color:var(--t-3);}
.topbar-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--glass-border);background:var(--glass-lite);
  align-items:center;justify-content:center;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";display:block;width:18px;height:2px;background:var(--t-1);border-radius:2px;transition:transform .25s ease;
}
.nav-toggle span::before{transform:translateY(-6px);}
.nav-toggle span::after{transform:translateY(4px);}

.channel-bar{position:sticky;top:0;z-index:30;background:rgba(6,11,20,.92);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:border-color .25s ease;}
.channel-bar.is-stuck{border-bottom-color:var(--line);}
.channel-scroll{
  display:flex;align-items:center;gap:8px;height:48px;overflow-x:auto;
  scroll-snap-type:x proximity;scrollbar-width:none;
  mask-image:linear-gradient(90deg,transparent,#000 18px,#000 calc(100% - 18px),transparent);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 18px,#000 calc(100% - 18px),transparent);
}
.channel-scroll::-webkit-scrollbar{display:none;}
.tab{
  position:relative;flex-shrink:0;scroll-snap-align:start;
  padding:8px 16px;border-radius:var(--r-pill);font-size:14px;color:var(--t-2);
  white-space:nowrap;transition:background .22s ease,color .22s ease;
}
.tab:hover{background:var(--glass-lite);color:var(--t-1);}
.tab.active{background:rgba(31,216,164,.12);color:var(--c-primary);}
.tab.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:2px;height:2px;border-radius:2px;
  background:var(--c-primary);box-shadow:0 0 10px rgba(31,216,164,.8);
}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(3,7,14,.62);opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;z-index:90;}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:82%;max-width:330px;z-index:100;
  background:rgba(10,18,32,.96);backdrop-filter:blur(18px);border-left:1px solid var(--glass-border);
  transform:translateX(100%);transition:transform .3s ease;
  padding:22px 20px;overflow-y:auto;display:flex;flex-direction:column;gap:18px;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-head b{color:var(--t-1);font-size:15px;}
.drawer-close{width:34px;height:34px;border-radius:10px;border:1px solid var(--glass-border);color:var(--t-2);display:flex;align-items:center;justify-content:center;}
.drawer-links{display:flex;flex-direction:column;gap:6px;}
.drawer-links a{padding:11px 14px;border-radius:12px;font-size:15px;color:var(--t-2);border:1px solid transparent;}
.drawer-links a:hover,.drawer-links a.active{color:var(--c-primary);background:rgba(31,216,164,.1);border-color:rgba(31,216,164,.28);}
.drawer .searchbox{max-width:none;width:100%;}

/* ---------- 页面横幅 ---------- */
.page-banner{position:relative;overflow:hidden;background:var(--bg-1);border-bottom:1px solid var(--line);}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(600px 320px at 8% 0%,rgba(31,216,164,.13),transparent 65%),
    radial-gradient(620px 340px at 96% 100%,rgba(110,123,255,.13),transparent 65%);
  pointer-events:none;
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:24px 24px;opacity:.5;pointer-events:none;
}
.banner-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;
  padding:72px 0 76px;
}
.breadcrumb{font-size:13px;color:var(--t-3);margin-bottom:18px;}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb span{margin:0 8px;color:var(--t-3);}
.banner-copy h1{font-size:44px;margin-bottom:16px;}
.banner-copy .lead{font-size:17px;color:var(--t-2);max-width:560px;margin-bottom:24px;}
.banner-meta{display:flex;flex-wrap:wrap;gap:10px;}
.banner-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--glass-border);box-shadow:var(--sh-2),0 0 0 1px rgba(31,216,164,.14);
}
.banner-media img{width:100%;aspect-ratio:16/11;height:auto;}
.banner-media::after{content:"";position:absolute;inset:0;background:rgba(4,10,20,.4);}
.banner-badge{
  position:absolute;left:18px;bottom:18px;z-index:3;
  display:flex;align-items:center;gap:10px;padding:10px 16px;border-radius:var(--r-pill);
  background:rgba(10,18,32,.78);border:1px solid var(--glass-border);backdrop-filter:blur(10px);
}
.banner-badge b{color:var(--c-primary);font-size:18px;}
.banner-badge small{font-size:12px;color:var(--t-3);}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section-gap) 0;}
.section-tight{padding:0 0 var(--section-gap);}
.section-head{max-width:760px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:2px;
  color:var(--c-primary);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--c-primary);}
.section-title{font-size:32px;margin-bottom:14px;}
.section-desc{color:var(--t-2);font-size:16px;max-width:680px;}

/* ---------- 症状清单 ---------- */
.list-shell{
  border-radius:var(--r-card);border:1px solid var(--glass-border);
  background:var(--glass);backdrop-filter:blur(14px);overflow:hidden;box-shadow:var(--sh-1);
}
.list-head{display:grid;grid-template-columns:1.1fr 1fr 1.3fr;gap:20px;padding:16px 24px;background:rgba(255,255,255,.05);border-bottom:1px solid var(--line);}
.list-head span{font-size:13px;letter-spacing:1px;color:var(--t-3);}
.symptom-row{
  display:grid;grid-template-columns:1.1fr 1fr 1.3fr;gap:20px;
  padding:20px 24px;border-bottom:1px solid var(--line);
  transition:background .22s ease,border-color .22s ease;
}
.symptom-row:nth-child(odd){background:rgba(255,255,255,.022);}
.symptom-row:last-child{border-bottom:0;}
.symptom-row:hover{background:rgba(31,216,164,.06);}
.symptom-row .cell-label{display:none;font-size:12px;color:var(--t-3);margin-bottom:6px;letter-spacing:1px;}
.symptom-title{color:var(--t-1);font-weight:600;font-size:15.5px;line-height:1.6;}
.symptom-cause{color:var(--t-2);font-size:14.5px;}
.symptom-fix{color:var(--t-2);font-size:14.5px;}
.symptom-fix b{color:var(--c-primary);font-weight:600;}

/* ---------- 三列清单卡 ---------- */
.card-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.list-card{
  display:flex;flex-direction:column;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--glass-border);background:var(--glass);backdrop-filter:blur(14px);
  box-shadow:var(--sh-1);transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.list-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(31,216,164,.4);}
.list-card-media{position:relative;overflow:hidden;}
.list-card-media img{width:100%;aspect-ratio:16/9;border-radius:0;}
.list-card-media::after{content:"";position:absolute;inset:0;background:rgba(4,10,20,.4);}
.list-card-media .pill{position:absolute;top:14px;left:14px;z-index:2;}
.list-card-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:14px;flex:1;}
.list-card-body h3{font-size:19px;}
.list-card-body p{font-size:14.5px;color:var(--t-2);}
.check-list{display:flex;flex-direction:column;gap:10px;margin-top:auto;}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--t-2);}
.check-list li::before{
  content:"";flex-shrink:0;width:16px;height:16px;margin-top:5px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(31,216,164,.9) 0 3px,rgba(31,216,164,.16) 3px 100%);
  border:1px solid rgba(31,216,164,.4);
}

/* ---------- 处理顺序 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step{
  position:relative;padding:24px 22px;border-radius:var(--r-card);
  border:1px solid var(--glass-border);background:var(--glass-lite);
  transition:border-color .24s ease,transform .24s ease,background .24s ease;
}
.step:hover{border-color:rgba(110,123,255,.45);transform:translateY(-3px);background:rgba(110,123,255,.07);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:11px;
  background:rgba(110,123,255,.14);border:1px solid rgba(110,123,255,.35);color:#AFB5FF;
  font-size:14px;font-weight:700;margin-bottom:14px;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--t-2);}

/* ---------- 相关入口 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.entry{
  display:flex;flex-direction:column;gap:10px;padding:26px 24px;border-radius:var(--r-card);
  border:1px solid var(--glass-border);background:var(--glass);backdrop-filter:blur(12px);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.entry:hover{transform:translateY(-4px);border-color:rgba(31,216,164,.42);box-shadow:var(--glow-soft);}
.entry h3{font-size:18px;}
.entry p{font-size:14px;color:var(--t-2);}
.entry .btn-text{margin-top:6px;}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  border-radius:var(--r-card);border:1px solid var(--glass-border);
  background:var(--glass);backdrop-filter:blur(12px);overflow:hidden;
  transition:border-color .24s ease,background .24s ease;
}
.faq-item:hover{border-color:rgba(120,200,255,.3);}
.faq-item.is-open{border-color:rgba(31,216,164,.4);background:rgba(31,216,164,.05);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:14px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--t-1);
}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:9px;border:1px solid var(--glass-border);
  display:flex;align-items:center;justify-content:center;color:var(--t-2);font-size:15px;line-height:1;
  transition:transform .28s ease,color .24s ease,border-color .24s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);color:var(--c-primary);border-color:rgba(31,216,164,.45);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.faq-a p{padding:0 24px 22px;font-size:15px;color:var(--t-2);max-width:900px;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;border:1px solid var(--glass-border);
  background:var(--glass);backdrop-filter:blur(14px);padding:40px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--sh-1);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(420px 220px at 12% 50%,rgba(31,216,164,.16),transparent 70%);
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:26px;margin-bottom:10px;}
.cta-band p{font-size:15px;color:var(--t-2);max-width:640px;}
.cta-actions{display:flex;gap:14px;flex-shrink:0;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-1);padding:64px 0 26px;margin-top:var(--section-gap);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--t-3);max-width:320px;}
.footer-col h4{font-size:13px;letter-spacing:2px;color:var(--t-3);text-transform:uppercase;margin-bottom:16px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-link{position:relative;display:inline-block;font-size:14.5px;color:var(--t-2);}
.footer-link::after{content:"";position:absolute;left:0;bottom:-2px;width:100%;height:1px;background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .26s ease;}
.footer-link:hover{color:var(--c-primary);}
.footer-link:hover::after{transform:scaleX(1);}
.footer-contact li{font-size:14.5px;color:var(--t-3);}
.footer-contact b{color:var(--t-2);font-weight:600;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--t-3);
}
.to-top{
  padding:8px 16px;border-radius:var(--r-pill);border:1px solid var(--glass-border);
  background:var(--glass-lite);color:var(--t-2);font-size:13px;
  transition:border-color .22s ease,color .22s ease,transform .22s ease;
}
.to-top:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px);}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--section-gap:72px;}
  .banner-inner{grid-template-columns:1fr;gap:36px;padding:56px 0 60px;}
  .banner-copy h1{font-size:36px;}
  .banner-media img{aspect-ratio:16/9;}
  .card-grid-3{grid-template-columns:repeat(2,1fr);}
  .entry-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr;gap:32px;}
  .list-head{grid-template-columns:1fr 1fr 1.2fr;}
  .symptom-row{grid-template-columns:1fr 1fr 1.2fr;}
}
@media (max-width:900px){
  .searchbox{display:none;}
  .searchbox.drawer-search{display:flex;}
}
@media (max-width:768px){
  :root{--section-gap:56px;}
  .container{padding:0 16px;}
  .topbar,.topbar-inner{height:56px;}
  .nav-toggle{display:flex;}
  .topbar-actions .btn-primary{display:none;}
  .brand-text small{display:none;}
  .channel-scroll{height:44px;}
  .banner-copy h1{font-size:28px;}
  .banner-copy .lead{font-size:15.5px;}
  .section-title{font-size:26px;}
  .section-head{margin-bottom:28px;}
  .card-grid-3{grid-template-columns:1fr;}
  .entry-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .list-head{display:none;}
  .symptom-row{grid-template-columns:1fr;gap:12px;padding:20px;}
  .symptom-row .cell-label{display:block;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .cta-band h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .banner-copy h1{font-size:25px;}
  .brand-text b{font-size:15px;}
  .faq-q{font-size:15px;padding:14px 18px;}
  .faq-a p{padding:0 18px 20px;font-size:14.5px;}
  .brand-badge small{display:none;}
}

/* roulang page: category2 */
:root{
  --bg-0:#060B14;
  --bg-1:#0A1220;
  --c-primary:#1FD8A4;
  --c-primary-600:#12B98A;
  --c-secondary:#6E7BFF;
  --c-accent:#FFB454;
  --t-1:#EAF2FF;
  --t-2:#A9BBD1;
  --t-3:#6E819A;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(120,200,255,.14);
  --glass:rgba(18,30,48,.55);
  --glass-soft:rgba(255,255,255,.04);
  --r-card:16px;
  --r-btn:12px;
  --r-input:10px;
  --r-pill:999px;
  --shadow-1:0 8px 24px rgba(0,0,0,.35);
  --shadow-2:0 16px 40px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(31,216,164,.35),0 8px 28px rgba(31,216,164,.26);
  --container:1200px;
  --sect:96px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t-2);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  position:relative;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(760px 460px at 10% -8%,rgba(31,216,164,.10),transparent 62%),
    radial-gradient(700px 440px at 94% 2%,rgba(110,123,255,.10),transparent 60%);
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{background:none;border:0;}
h1,h2,h3,h4{margin:0;color:var(--t-1);line-height:1.3;font-weight:700;letter-spacing:.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
::selection{background:rgba(31,216,164,.28);color:#fff;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.site-header,main,.site-footer{position:relative;z-index:1;}

/* ---------- 顶部导航 ---------- */
.topbar{border-bottom:1px solid var(--line);}
.topbar-inner{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{width:38px;height:38px;flex:none;}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text b{font-size:16px;color:var(--t-1);font-weight:700;letter-spacing:.3px;}
.brand-text small{font-size:12px;color:var(--t-3);letter-spacing:.6px;}
.searchbox{
  display:flex;align-items:center;gap:9px;
  flex:1 1 240px;max-width:400px;margin-left:auto;
  height:40px;padding:0 16px;
  border-radius:var(--r-pill);
  background:var(--glass-soft);
  border:1px solid var(--line-strong);
  transition:border-color .22s,background .22s,box-shadow .22s;
}
.searchbox svg{width:16px;height:16px;stroke:var(--t-3);fill:none;flex:none;transition:stroke .22s;}
.searchbox:focus-within{border-color:rgba(31,216,164,.55);background:rgba(31,216,164,.06);box-shadow:0 0 0 4px rgba(31,216,164,.10);}
.searchbox:focus-within svg{stroke:var(--c-primary);}
.searchbox input{flex:1;min-width:0;background:transparent;border:0;outline:none;color:var(--t-1);font-size:14px;}
.searchbox input::placeholder{color:var(--t-3);}
.topbar-actions{display:flex;align-items:center;gap:12px;flex:none;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#04241B;box-shadow:var(--glow);}
.btn-primary:hover{background:#3BE0B4;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(31,216,164,.45),0 12px 32px rgba(31,216,164,.34);}
.btn-primary:active{transform:scale(.98);background:var(--c-primary-600);}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--t-1);}
.btn-ghost:hover{border-color:rgba(31,216,164,.55);color:var(--c-primary);transform:translateY(-1px);}
.btn-ghost:active{transform:scale(.98);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:15px;}
.btn-link svg{width:14px;height:14px;transition:transform .2s ease;}
.btn-link:hover svg{transform:translateX(4px);}

.nav-toggle{
  display:none;position:relative;width:40px;height:40px;flex:none;
  border-radius:10px;background:var(--glass-soft);border:1px solid var(--line-strong);cursor:pointer;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:50%;width:16px;height:2px;border-radius:2px;
  background:var(--t-1);transform:translateX(-50%);transition:background .2s;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle:hover span,.nav-toggle:hover span::before,.nav-toggle:hover span::after{background:var(--c-primary);}

.channel-bar{
  position:sticky;top:0;z-index:40;
  background:rgba(6,11,20,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.channel-scroll{
  display:flex;gap:8px;overflow-x:auto;
  padding:9px 0;
  scroll-snap-type:x proximity;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-scroll::-webkit-scrollbar{display:none;}
.tab{
  position:relative;flex:none;padding:7px 16px;border-radius:var(--r-pill);
  font-size:14px;color:var(--t-2);white-space:nowrap;scroll-snap-align:start;
  transition:background .2s,color .2s;
}
.tab:hover{background:var(--glass-soft);color:var(--t-1);}
.tab.active{background:rgba(31,216,164,.12);color:var(--c-primary);}
.tab.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:1px;height:2px;border-radius:2px;
  background:var(--c-primary);box-shadow:0 0 10px rgba(31,216,164,.85);
}

/* ---------- 移动端抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;z-index:70;background:rgba(3,6,12,.62);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:80;
  width:min(320px,86vw);padding:22px;
  background:rgba(10,18,32,.97);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-left:1px solid var(--line-strong);
  transform:translateX(102%);transition:transform .3s ease;
  overflow-y:auto;
}
.drawer.open{transform:none;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px;}
.drawer-head b{font-size:15px;color:var(--t-1);}
.drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line-strong);
  background:var(--glass-soft);color:var(--t-2);font-size:16px;cursor:pointer;transition:.2s;
}
.drawer-close:hover{color:var(--c-primary);border-color:rgba(31,216,164,.5);}
.drawer-search{
  display:flex;align-items:center;gap:8px;height:42px;padding:0 14px;margin-bottom:18px;
  border-radius:var(--r-pill);background:var(--glass-soft);border:1px solid var(--line-strong);
}
.drawer-search input{flex:1;min-width:0;background:transparent;border:0;outline:none;font-size:14px;color:var(--t-1);}
.drawer-search input::placeholder{color:var(--t-3);}
.drawer nav{display:grid;gap:8px;margin-bottom:22px;}
.drawer nav a{
  padding:12px 14px;border-radius:12px;font-size:15px;color:var(--t-2);
  background:var(--glass-soft);border:1px solid var(--line);transition:.2s;
}
.drawer nav a:hover{color:var(--t-1);border-color:var(--line-strong);}
.drawer nav a.active{color:var(--c-primary);border-color:rgba(31,216,164,.42);background:rgba(31,216,164,.10);}

/* ---------- 顶部横幅 ---------- */
.banner{
  position:relative;overflow:hidden;
  padding:56px 0 72px;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.banner::before{content:"";position:absolute;inset:0;background:rgba(6,11,20,.76);}
.banner::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(540px 340px at 6% 0%,rgba(31,216,164,.16),transparent 62%),
    radial-gradient(560px 340px at 98% 100%,rgba(110,123,255,.16),transparent 62%);
}
.banner .container{position:relative;z-index:2;}
.banner-grid{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:48px;align-items:center;}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:nowrap;overflow:hidden;
  font-size:13px;color:var(--t-3);margin-bottom:16px;white-space:nowrap;
}
.breadcrumb a{transition:color .2s;}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{opacity:.55;}
.breadcrumb .cur{color:var(--t-2);overflow:hidden;text-overflow:ellipsis;}
.banner h1{font-size:44px;line-height:1.22;letter-spacing:1px;}
.banner .lede{margin-top:16px;font-size:16px;color:var(--t-2);max-width:560px;}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.banner-metrics{display:flex;flex-wrap:wrap;gap:28px;margin-top:34px;}
.metric{position:relative;padding-left:16px;}
.metric::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:2px;border-radius:2px;background:linear-gradient(180deg,var(--c-primary),var(--c-secondary));}
.metric b{display:block;font-size:24px;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1.2;}
.metric span{font-size:13px;color:var(--t-3);}

.banner-visual{
  position:relative;border-radius:20px;overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:0 0 0 1px rgba(31,216,164,.16),var(--shadow-2);
}
.banner-visual img{width:100%;height:280px;object-fit:cover;}
.banner-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,20,.12),rgba(6,11,20,.72));
}
.float-card{
  position:absolute;left:16px;right:16px;bottom:16px;z-index:2;
  display:flex;align-items:center;gap:10px;
  padding:12px 14px;border-radius:14px;
  background:rgba(10,18,32,.80);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border:1px solid var(--line-strong);
  font-size:13px;color:var(--t-2);line-height:1.5;
}
.dot-pulse{
  position:relative;flex:none;width:9px;height:9px;border-radius:50%;background:var(--c-primary);
}
.dot-pulse::after{
  content:"";position:absolute;inset:-5px;border-radius:50%;
  border:1px solid rgba(31,216,164,.5);animation:ring 2s ease-out infinite;
}
@keyframes ring{0%{transform:scale(.6);opacity:.9;}100%{transform:scale(1.4);opacity:0;}}

/* ---------- 通用徽章与标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;line-height:1.6;
}
.badge-primary{background:rgba(31,216,164,.14);color:var(--c-primary);border:1px solid rgba(31,216,164,.30);}
.badge-secondary{background:rgba(110,123,255,.16);color:#AFB6FF;border:1px solid rgba(110,123,255,.32);}
.badge-accent{background:rgba(255,180,84,.14);color:var(--c-accent);border:1px solid rgba(255,180,84,.30);}
.badge-plain{background:var(--glass-soft);color:var(--t-2);border:1px solid var(--line);}

/* ---------- 文档式布局 ---------- */
.section{padding:var(--sect) 0;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{font-size:32px;}
.section-head p{margin-top:14px;font-size:16px;color:var(--t-2);}

.doc-layout{display:grid;grid-template-columns:200px minmax(0,1fr);gap:56px;align-items:start;}
.doc-toc{position:sticky;top:88px;}
.doc-toc h2{
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--t-3);font-weight:600;margin-bottom:14px;
}
.doc-toc ol{display:grid;gap:4px;}
.doc-toc a{
  display:block;padding:9px 12px;border-radius:10px;
  font-size:14px;color:var(--t-2);line-height:1.5;
  border-left:2px solid transparent;
  transition:background .2s,color .2s,border-color .2s;
}
.doc-toc a:hover{background:var(--glass-soft);color:var(--t-1);}
.doc-toc a.active{
  color:var(--c-primary);
  border-left-color:var(--c-primary);
  background:rgba(31,216,164,.08);
}
.doc-toc-foot{margin-top:22px;padding-top:18px;border-top:1px solid var(--line);}
.doc-toc-foot p{font-size:13px;color:var(--t-3);line-height:1.7;}

.doc-section{
  padding:34px 34px 38px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-1);
  scroll-margin-top:84px;
  transition:border-color .28s,box-shadow .28s;
}
.doc-section + .doc-section{margin-top:28px;}
.doc-section:hover{border-color:rgba(31,216,164,.28);}
.doc-section h2{font-size:26px;}
.doc-section h2 + p{margin-top:16px;}
.doc-section > p + p{margin-top:12px;}
.doc-section h3{font-size:18px;margin-top:26px;}
.doc-section h3 + p{margin-top:8px;}
.doc-section p{font-size:15px;}
.doc-section .eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.14em;
  color:var(--c-secondary);font-weight:600;margin-bottom:10px;text-transform:uppercase;
}
@media (min-width:1025px){
  .doc-section h2 + p,.doc-section > p{max-width:760px;}
}

.doc-list{margin-top:16px;display:grid;gap:10px;}
.doc-list li{display:flex;gap:10px;font-size:15px;color:var(--t-2);}
.doc-list li::before{
  content:"";flex:none;width:6px;height:6px;margin-top:11px;
  border-radius:50%;background:var(--c-primary);box-shadow:0 0 8px rgba(31,216,164,.6);
}
.doc-steps{counter-reset:step;margin-top:18px;display:grid;gap:14px;}
.doc-steps li{
  position:relative;counter-increment:step;
  padding:14px 18px 14px 56px;
  border-radius:12px;background:var(--glass-soft);border:1px solid var(--line);
  font-size:15px;color:var(--t-2);
  transition:border-color .22s,transform .22s;
}
.doc-steps li:hover{border-color:rgba(31,216,164,.35);transform:translateX(3px);}
.doc-steps li::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;left:16px;top:14px;
  font-size:13px;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;letter-spacing:.05em;
}

.doc-media{margin-top:22px;border-radius:12px;overflow:hidden;border:1px solid var(--line);background:var(--bg-1);}
.doc-media img{width:100%;height:230px;object-fit:cover;}
.doc-media figcaption{
  padding:10px 16px;font-size:13px;color:var(--t-3);
  background:rgba(255,255,255,.03);border-top:1px solid var(--line);
}

.method-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:20px;}
.method-card{
  padding:18px 20px;border-radius:14px;
  background:var(--glass-soft);border:1px solid var(--line);
  transition:border-color .22s,transform .22s,background .22s;
}
.method-card:hover{border-color:rgba(31,216,164,.38);transform:translateY(-3px);background:rgba(31,216,164,.05);}
.method-card h3{margin-top:0;font-size:17px;}
.method-card p{margin-top:8px;font-size:14px;color:var(--t-2);}
.method-card .badge{margin-bottom:10px;}

.note-card{
  margin-top:20px;padding:16px 20px;border-radius:12px;
  background:rgba(110,123,255,.09);
  border:1px solid rgba(110,123,255,.28);
  font-size:14px;color:var(--t-2);
}
.note-card b{color:var(--t-1);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq{
  border-radius:var(--r-card);overflow:hidden;
  background:var(--glass);border:1px solid var(--line-strong);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-1);
}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:18px 24px;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--t-1);line-height:1.55;
  transition:color .2s;
}
.faq-q:hover{color:var(--c-primary);}
.faq-ico{
  position:relative;flex:none;width:24px;height:24px;border-radius:50%;
  border:1px solid var(--line-strong);
  transition:transform .28s ease,border-color .28s,background .28s;
}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--t-2);border-radius:2px;
  transform:translate(-50%,-50%);
  transition:background .28s,transform .28s;
}
.faq-ico::before{width:10px;height:2px;}
.faq-ico::after{width:2px;height:10px;}
.faq-item.open .faq-ico{transform:rotate(180deg);border-color:rgba(31,216,164,.55);background:rgba(31,216,164,.10);}
.faq-item.open .faq-ico::before,.faq-item.open .faq-ico::after{background:var(--c-primary);}
.faq-item.open .faq-ico::after{transform:translate(-50%,-50%) scaleY(0);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease;}
.faq-a p{padding:0 24px 22px;font-size:15px;color:var(--t-2);}
.faq-item.open .faq-a{max-height:360px;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:38px 42px;border-radius:20px;
  background:var(--glass);border:1px solid var(--line-strong);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-1);
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(460px 240px at 8% 50%,rgba(31,216,164,.18),transparent 62%),
    radial-gradient(420px 220px at 96% 40%,rgba(110,123,255,.16),transparent 62%);
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:28px;}
.cta-band p{margin-top:10px;font-size:15px;color:var(--t-2);max-width:600px;}
.cta-actions{display:flex;gap:14px;flex:none;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:24px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,18,32,.5),rgba(6,11,20,.9));
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:40px;padding:64px 0 40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--t-3);max-width:340px;line-height:1.85;}
.footer-col h4{
  font-size:13px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--t-3);font-weight:600;margin-bottom:18px;
}
.footer-col ul{display:grid;gap:11px;}
.footer-link{
  position:relative;display:inline-block;font-size:14px;color:var(--t-2);
  transition:color .22s;
}
.footer-link::after{
  content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;
  background:var(--c-primary);transition:width .26s ease;
}
.footer-link:hover{color:var(--c-primary);}
.footer-link:hover::after{width:100%;}
.footer-contact li{font-size:14px;color:var(--t-2);}
.footer-contact b{color:var(--t-3);font-weight:600;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 32px;border-top:1px solid var(--line);
  font-size:13px;color:var(--t-3);
}
.to-top{
  padding:8px 16px;border-radius:var(--r-pill);cursor:pointer;
  background:var(--glass-soft);border:1px solid var(--line-strong);color:var(--t-2);
  font-size:13px;transition:color .2s,border-color .2s,transform .2s;
}
.to-top:hover{color:var(--c-primary);border-color:rgba(31,216,164,.5);transform:translateY(-1px);}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .banner h1{font-size:38px;}
  .doc-layout{gap:40px;}
}
@media (max-width:1024px){
  :root{--sect:72px;}
  .banner-grid{grid-template-columns:1fr;gap:32px;}
  .banner-visual img{height:240px;}
  .doc-layout{grid-template-columns:1fr;gap:28px;}
  .doc-toc{position:static;}
  .doc-toc h2{margin-bottom:10px;}
  .doc-toc ol{
    display:flex;flex-wrap:nowrap;gap:8px;overflow-x:auto;
    padding-bottom:6px;scrollbar-width:none;
  }
  .doc-toc ol::-webkit-scrollbar{display:none;}
  .doc-toc li{flex:none;}
  .doc-toc a{
    border-left:0;border:1px solid var(--line);border-radius:var(--r-pill);
    padding:8px 14px;white-space:nowrap;
  }
  .doc-toc a.active{border-color:rgba(31,216,164,.5);background:rgba(31,216,164,.10);}
  .doc-toc-foot{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 28px;}
}
@media (max-width:768px){
  :root{--sect:56px;}
  .container{padding:0 16px;}
  .topbar-inner{height:56px;gap:12px;}
  .brand-mark{width:34px;height:34px;}
  .brand-text b{font-size:15px;}
  .brand-text small{display:none;}
  .searchbox{display:none;}
  .nav-toggle{display:block;}
  .topbar-actions .btn-primary{height:40px;padding:0 16px;font-size:14px;}
  .banner{padding:34px 0 48px;}
  .banner h1{font-size:28px;}
  .banner .lede{font-size:15px;margin-top:12px;}
  .banner-metrics{gap:20px;margin-top:26px;}
  .metric b{font-size:20px;}
  .banner-visual img{height:200px;}
  .section-head h2{font-size:22px;}
  .doc-section{padding:24px 20px 28px;}
  .doc-section h2{font-size:21px;}
  .method-grid{grid-template-columns:1fr;}
  .doc-media img{height:180px;}
  .faq-q{font-size:15px;padding:16px 18px;}
  .faq-a p{padding:0 18px 20px;}
  .cta-band h2{font-size:22px;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
}
@media (max-width:520px){
  .banner h1{font-size:25px;}
  .banner-metrics{gap:16px;}
  .metric{padding-left:12px;}
  .metric b{font-size:18px;}
  .doc-steps li{padding:12px 14px 12px 48px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}