/* roulang page: index */
:root{
  --bg-deep:#0B2027;
  --bg:#0E2730;
  --bg-elev:#12313B;
  --paper:#F7F4EF;
  --paper-ink:#1B2A2F;
  --paper-ink-2:#4C5C63;
  --primary:#35D6BB;
  --primary-600:#21BCA3;
  --primary-dim:rgba(53,214,187,.14);
  --accent:#D9A85C;
  --accent-dim:rgba(217,168,92,.16);
  --accent-2:#7FA8B8;
  --ink:#E8F1F2;
  --ink-2:#B9CBD2;
  --ink-3:#8AA0A9;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.055);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --shadow:0 1px 2px rgba(0,0,0,.35),0 18px 44px -22px rgba(0,0,0,.6);
  --shadow-hover:0 2px 4px rgba(0,0,0,.4),0 28px 56px -24px rgba(0,0,0,.7);
  --glow:0 0 0 1px rgba(53,214,187,.28),0 12px 34px -14px rgba(53,214,187,.55);
  --ease:220ms cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-deep);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3}
p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.num{font-variant-numeric:tabular-nums}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* ---------- 顶部倒计时条 ---------- */
.topbar{
  background:linear-gradient(90deg,rgba(53,214,187,.16),rgba(217,168,92,.10) 55%,rgba(53,214,187,.10));
  border-bottom:1px solid var(--line);
  font-size:13.5px;
  position:relative;
  z-index:60;
}
.topbar.is-hidden{display:none}
.topbar-in{display:flex;align-items:center;gap:16px;min-height:44px}
.topbar-tag{display:inline-flex;align-items:center;gap:8px;color:var(--ink-2);white-space:nowrap}
.topbar-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(53,214,187,.16);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.42}}
.topbar-timer{
  margin-left:auto;
  color:var(--accent);
  font-weight:700;
  letter-spacing:.06em;
  font-variant-numeric:tabular-nums;
}
.topbar-link{color:var(--ink-2);display:inline-flex;align-items:center;gap:6px;transition:color var(--ease)}
.topbar-link i{font-style:normal;transition:transform var(--ease)}
.topbar-link:hover{color:var(--primary)}
.topbar-link:hover i{transform:translateX(3px)}
.topbar-close{
  width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  color:var(--ink-3);line-height:1;display:grid;place-items:center;font-size:15px;
  transition:all var(--ease);
}
.topbar-close:hover{color:var(--ink);border-color:var(--line-strong);background:rgba(255,255,255,.06)}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(11,32,39,.86);backdrop-filter:blur(16px) saturate(130%);border-bottom:1px solid var(--line)}
.nav-top{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(140deg,var(--primary),#1c8f7e);
  display:grid;place-items:center;color:#08221f;font-weight:800;font-size:16px;
  box-shadow:var(--glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-weight:700;font-size:17px;letter-spacing:.02em}
.brand-sub{font-size:11.5px;color:var(--ink-3);letter-spacing:.14em;text-transform:uppercase}
.search{flex:1;max-width:420px;position:relative;margin-left:8px}
.search i{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--ink-3);font-size:14px}
.search input{
  width:100%;height:44px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);
  padding:0 18px 0 42px;color:var(--ink);font-size:15px;
  transition:all var(--ease);
}
.search input::placeholder{color:var(--ink-3)}
.search input:focus{outline:none;border-color:rgba(53,214,187,.6);box-shadow:var(--glow);background:rgba(255,255,255,.08)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-toggle{display:none;width:42px;height:42px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--glass);color:var(--ink-2);place-items:center}
.hamburger{display:none;width:42px;height:42px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--glass);color:var(--ink-2);place-items:center}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:var(--r-md);padding:0 22px;height:46px;font-size:15px;font-weight:600;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
  white-space:nowrap;border:1px solid transparent;
}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-600));color:#06231f;box-shadow:var(--glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(53,214,187,.4),0 18px 40px -12px rgba(53,214,187,.75)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:var(--glass);border-color:var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:rgba(53,214,187,.55);background:rgba(255,255,255,.09);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn-block{width:100%}

.channel-bar{border-top:1px solid var(--line);position:relative}
.channel-scroll{
  display:flex;gap:10px;padding:10px 0;overflow-x:auto;scroll-snap-type:x proximity;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-scroll::-webkit-scrollbar{display:none}
.channel-scroll::before,.channel-scroll::after{content:"";flex:0 0 4px}
.chip{
  flex:0 0 auto;scroll-snap-align:start;
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--glass);
  font-size:14.5px;color:var(--ink-2);
  transition:all var(--ease);
}
.chip:hover{color:var(--ink);border-color:rgba(53,214,187,.45);background:rgba(255,255,255,.08)}
.chip.active{
  background:var(--primary-dim);color:var(--primary);
  border-color:rgba(53,214,187,.5);box-shadow:inset 0 0 18px -6px rgba(53,214,187,.55);
  font-weight:600;
}
.channel-fade{position:absolute;top:0;bottom:0;width:44px;pointer-events:none}
.channel-fade.left{left:0;background:linear-gradient(90deg,rgba(11,32,39,.95),transparent)}
.channel-fade.right{right:0;background:linear-gradient(270deg,rgba(11,32,39,.95),transparent)}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:80;background:rgba(9,25,31,.97);backdrop-filter:blur(18px);
  transform:translateX(100%);transition:transform var(--ease);
  display:flex;flex-direction:column;padding:24px 20px 40px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-close{width:42px;height:42px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--glass);color:var(--ink-2);display:grid;place-items:center;font-size:18px}
.drawer .search{max-width:none;margin:0 0 22px;flex:none}
.drawer-nav{display:flex;flex-direction:column;gap:10px;margin-bottom:28px}
.drawer-nav a{padding:14px 16px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--glass);color:var(--ink-2);font-size:15.5px}
.drawer-nav a.active{color:var(--primary);border-color:rgba(53,214,187,.45);background:var(--primary-dim)}

/* ---------- 通用板块 ---------- */
section{scroll-margin-top:88px}
.section{padding:clamp(56px,8vw,104px) 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:38px}
.section-head h2{font-size:clamp(22px,2.8vw,32px)}
.section-head p{color:var(--ink-3);font-size:14.5px;max-width:520px;margin-top:10px}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;font-size:13px;letter-spacing:.16em;
  color:var(--primary);text-transform:uppercase;margin-bottom:14px;font-weight:600;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);opacity:.7}
.lead{color:var(--ink-2);font-size:16.5px;line-height:1.85}
.link-more{display:inline-flex;align-items:center;gap:7px;color:var(--primary);font-size:14.5px;font-weight:600;transition:all var(--ease)}
.link-more i{font-style:normal;transition:transform var(--ease)}
.link-more:hover i{transform:translateX(4px)}

.card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;position:relative;overflow:hidden;
  backdrop-filter:blur(14px) saturate(120%);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
}
.card:hover{transform:translateY(-4px);border-color:rgba(53,214,187,.4);box-shadow:var(--shadow-hover)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:clamp(52px,7vw,96px) 0 clamp(56px,7vw,92px);border-bottom:1px solid var(--line)}
.hero::before{
  content:"";position:absolute;top:-30%;left:50%;transform:translateX(-50%);
  width:min(1200px,120vw);height:620px;
  background:radial-gradient(ellipse at center,rgba(53,214,187,.17),transparent 66%);
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:6fr 4fr;gap:clamp(28px,4vw,64px);align-items:center}
.hero h1{font-size:clamp(28px,4vw,48px);line-height:1.25;margin-bottom:20px}
.hero h1 span{color:var(--primary)}
.hero-sub{color:var(--ink-2);font-size:17px;max-width:560px;margin-bottom:30px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px 38px;padding-top:24px;border-top:1px solid var(--line)}
.hero-stat .v{font-size:24px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-stat .l{font-size:13px;color:var(--ink-3);margin-top:4px}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--shadow)}
.hero-badge{
  position:absolute;left:-18px;bottom:26px;max-width:280px;
  background:rgba(11,32,39,.82);border:1px solid var(--line-strong);border-radius:var(--r-md);
  padding:18px 20px;backdrop-filter:blur(16px) saturate(130%);
  box-shadow:var(--shadow);
}
.hero-badge::before{content:"";position:absolute;top:0;left:14px;right:14px;height:1px;background:linear-gradient(90deg,transparent,rgba(53,214,187,.8),transparent)}
.hero-badge .t{font-size:13.5px;color:var(--ink-3);margin-bottom:6px}
.hero-badge .d{font-size:15px;font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums}

/* ---------- Bento ---------- */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:18px}
.bento .card{padding:28px}
.b-lg{grid-column:span 3}
.b-md{grid-column:span 3}
.b-sm{grid-column:span 2}
.card-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  font-size:18px;margin-bottom:18px;
  background:var(--primary-dim);color:var(--primary);border:1px solid rgba(53,214,187,.28);
}
.card-icon.gold{background:var(--accent-dim);color:var(--accent);border-color:rgba(217,168,92,.3)}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--ink-2);font-size:15px;line-height:1.8}
.card-foot{margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}

/* ---------- 图墙 ---------- */
.gallery{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.gi{position:relative;overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line);height:220px}
.gi img{width:100%;height:100%;object-fit:cover;transition:transform 420ms cubic-bezier(.2,.7,.3,1)}
.gi::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(9,25,31,.82),rgba(9,25,31,.05) 58%);
  opacity:0;transition:opacity var(--ease);
}
.gi .tag{
  position:absolute;left:18px;bottom:16px;z-index:2;
  font-size:13.5px;font-weight:600;color:var(--ink);
  opacity:0;transform:translateY(8px);transition:all var(--ease);
}
.gi:hover img{transform:scale(1.06)}
.gi:hover::after{opacity:1}
.gi:hover .tag{opacity:1;transform:translateY(0)}
.gi.w3{grid-column:span 3;height:300px}
.gi.w2{grid-column:span 2;height:220px}
.gi.w6{grid-column:span 6;height:250px}

/* ---------- CMS 列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.news-card{
  display:grid;grid-template-columns:170px 1fr;gap:20px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:18px;transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(53,214,187,.4);box-shadow:var(--shadow-hover)}
.news-thumb{position:relative;border-radius:var(--r-md);overflow:hidden;height:118px;background:var(--bg-elev)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 420ms cubic-bezier(.2,.7,.3,1)}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-body{display:flex;flex-direction:column;min-width:0}
.news-meta{display:flex;align-items:center;gap:12px;margin-bottom:8px;font-size:12.5px;color:var(--ink-3)}
.news-body h3{
  font-size:16.5px;line-height:1.5;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  color:var(--ink-3);font-size:13.5px;line-height:1.65;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3)}
.news-foot .go{color:var(--primary);display:inline-flex;align-items:center;gap:6px;font-weight:600;transition:gap var(--ease)}
.news-foot .go i{font-style:normal}
.news-card:hover .news-foot .go{gap:10px}
.badge{
  display:inline-flex;align-items:center;padding:3px 11px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;background:var(--primary-dim);color:var(--primary);
  border:1px solid rgba(53,214,187,.28);
}
.badge.gold{background:var(--accent-dim);color:var(--accent);border-color:rgba(217,168,92,.3)}
.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;background:rgba(255,255,255,.03);
}
.empty-state .ico{font-size:34px;color:var(--ink-3);margin-bottom:14px}
.empty-state p{color:var(--ink-3);margin-bottom:20px}

/* ---------- 指标 ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.metric{text-align:center;padding:30px 18px}
.metric .v{font-size:clamp(24px,3vw,34px);font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.2}
.metric .l{font-size:13.5px;color:var(--ink-3);margin-top:8px}

/* ---------- CTA 表单 ---------- */
.cta-panel{
  background:linear-gradient(150deg,#103540,#0E2A33 62%,#103038);
  border:1px solid rgba(53,214,187,.2);border-radius:var(--r-lg);
  padding:clamp(28px,4vw,52px);position:relative;overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;top:-160px;right:-100px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(53,214,187,.18),transparent 68%);
}
.cta-grid{position:relative;display:grid;grid-template-columns:1fr 420px;gap:clamp(28px,4vw,56px);align-items:start}
.cta-list{display:flex;flex-direction:column;gap:16px;margin-top:26px}
.cta-list li{display:flex;gap:12px;color:var(--ink-2);font-size:15px;line-height:1.75}
.cta-list i{color:var(--primary);font-size:15px;margin-top:6px;flex:0 0 auto}
.form-card{background:rgba(11,32,39,.72);border:1px solid var(--line-strong);border-radius:var(--r-lg);padding:26px;backdrop-filter:blur(16px) saturate(130%)}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;color:var(--ink-3);margin-bottom:8px}
.field input,.field select{
  width:100%;height:48px;border-radius:var(--r-md);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  padding:0 14px;font-size:16px;color:var(--ink);transition:all var(--ease);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink-3) 50%),linear-gradient(135deg,var(--ink-3) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.field input::placeholder{color:var(--ink-3)}
.field input:focus,.field select:focus{outline:none;border-color:rgba(53,214,187,.6);box-shadow:var(--glow);background:rgba(255,255,255,.08)}
.field.error input,.field.error select{border-color:#e2705f;box-shadow:0 0 0 1px rgba(226,112,95,.4)}
.field .msg{font-size:12.5px;margin-top:6px;display:none}
.field.error .msg{display:block;color:#e2705f}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--ink-3);line-height:1.7;margin:4px 0 20px}
.check input{width:16px;height:16px;margin-top:4px;accent-color:var(--primary);flex:0 0 auto}
.check a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.form-note{margin-top:14px;font-size:13px;border-radius:var(--r-sm);padding:11px 14px;display:none}
.form-note.ok{display:block;background:rgba(53,214,187,.14);color:var(--primary);border:1px solid rgba(53,214,187,.32)}
.form-note.bad{display:block;background:rgba(226,112,95,.12);color:#f0a294;border:1px solid rgba(226,112,95,.32)}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:320px 1fr;gap:clamp(28px,4vw,56px);align-items:start}
.faq-side{position:sticky;top:132px}
.faq-side h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:14px}
.faq-side p{color:var(--ink-3);font-size:15px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 0;font-size:16.5px;font-weight:600;color:var(--ink);
  cursor:pointer;list-style:none;transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-item summary .arw{
  width:28px;height:28px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;font-size:12px;color:var(--ink-3);flex:0 0 auto;
  transition:transform var(--ease),color var(--ease),border-color var(--ease);
}
.faq-item[open] summary{color:var(--primary)}
.faq-item[open] summary .arw{transform:rotate(180deg);color:var(--primary);border-color:rgba(53,214,187,.5)}
.faq-item .ans{padding:0 0 24px 16px;border-left:3px solid var(--primary);color:var(--ink-2);font-size:15.5px;line-height:1.85;margin-left:2px}

/* ---------- 页脚 ---------- */
.site-footer{background:linear-gradient(180deg,#0A1C22,#081719);border-top:1px solid var(--line);margin-top:0}
.footer-stone{height:1px;background:repeating-linear-gradient(90deg,rgba(255,255,255,.16) 0 6px,transparent 6px 14px)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding:56px 0 40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--ink-3);font-size:14px;line-height:1.8;max-width:300px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--ink)}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{color:var(--ink-3);font-size:14px;transition:color var(--ease);display:inline-block}
.footer-col a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px}
.footer-key{display:flex;flex-wrap:wrap;gap:10px 22px;padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.footer-key a{font-size:13.5px;color:var(--ink-3)}
.footer-key a:hover{color:var(--primary)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;padding:24px 0 40px;font-size:13px;color:var(--ink-3)}
.footer-bottom a{color:var(--ink-3)}
.footer-bottom a:hover{color:var(--primary)}

.to-top{
  position:fixed;right:24px;bottom:26px;width:48px;height:48px;border-radius:50%;
  background:rgba(11,32,39,.85);border:1px solid var(--line-strong);color:var(--primary);
  display:grid;place-items:center;font-size:16px;z-index:40;
  opacity:0;visibility:hidden;transform:translateY(10px);
  backdrop-filter:blur(12px);transition:all var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:rgba(53,214,187,.6);box-shadow:var(--glow)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .hero-badge{position:static;max-width:none;margin-top:16px}
  .bento{grid-template-columns:repeat(4,1fr)}
  .b-lg,.b-md{grid-column:span 4}
  .b-sm{grid-column:span 2}
  .gallery{grid-template-columns:repeat(4,1fr)}
  .gi.w3{grid-column:span 4;height:260px}
  .gi.w2{grid-column:span 2}
  .gi.w6{grid-column:span 4;height:220px}
  .news-grid{grid-template-columns:1fr}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .cta-grid{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .faq-side{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .search{display:none}
  .search-toggle{display:grid}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 16px}
  .nav-top{min-height:64px;gap:12px}
  .brand-sub{display:none}
  .hamburger{display:grid}
  .nav-actions .btn-primary{display:none}
  .topbar-tag{font-size:12.5px}
  .topbar-link{display:none}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .bento{grid-template-columns:1fr}
  .b-lg,.b-md,.b-sm{grid-column:span 1}
  .gallery{grid-template-columns:1fr}
  .gi,.gi.w2,.gi.w3,.gi.w6{grid-column:span 1;height:200px}
  .metrics{grid-template-columns:1fr 1fr}
  .news-card{grid-template-columns:1fr}
  .news-thumb{height:170px}
  .footer-grid{grid-template-columns:1fr;padding:44px 0 30px}
  .to-top{right:16px;bottom:18px;width:44px;height:44px}
}
@media (max-width:520px){
  .hero h1{font-size:26px}
  .hero-sub{font-size:15.5px}
  .hero-stats{gap:16px 24px}
  .hero-stat .v{font-size:20px}
  .metric{padding:22px 12px}
  .cta-panel{padding:24px 18px}
  .form-card{padding:20px 16px}
  .card{padding:22px}
  .btn{width:100%}
  .hero-cta .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --bg-deep:#0B2027;
  --bg:#0E2730;
  --bg-elev:#12313B;
  --paper:#F7F4EF;
  --paper-ink:#1B2A2F;
  --primary:#35D6BB;
  --primary-600:#21BCA3;
  --accent:#D9A85C;
  --accent-2:#7FA8B8;
  --ink:#E8F1F2;
  --ink-2:#B9CBD2;
  --ink-3:#8AA0A9;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.055);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(0,0,0,.35), 0 18px 44px -22px rgba(0,0,0,.6);
  --shadow-2:0 2px 4px rgba(0,0,0,.4), 0 26px 60px -24px rgba(0,0,0,.7);
  --glow:0 0 0 1px rgba(53,214,187,.28), 0 12px 34px -14px rgba(53,214,187,.55);
  --ease:220ms cubic-bezier(.2,.7,.3,1);
  --font:"Noto 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:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:
    radial-gradient(1100px 520px at 12% -8%, rgba(53,214,187,.14), transparent 62%),
    radial-gradient(900px 480px at 92% 4%, rgba(127,168,184,.12), transparent 60%),
    linear-gradient(180deg,var(--bg-deep) 0%, var(--bg) 42%, var(--bg-deep) 100%);
  background-attachment:fixed;
  min-height:100vh;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;
}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:clamp(56px,8vw,112px) 0;scroll-margin-top:120px}
.section-head{margin-bottom:clamp(28px,4vw,48px)}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;line-height:1.6;letter-spacing:.04em;
  color:var(--primary);text-transform:uppercase;
}
.section-head .eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);opacity:.7}
.section-head h2{font-size:clamp(22px,2.8vw,32px);margin:12px 0 10px}
.section-head p{color:var(--ink-2);max-width:760px;font-size:16px;line-height:1.9}
.divider{height:1px;background:var(--line);width:100%}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-md);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;line-height:1.4;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary) 0%, var(--primary-600) 100%);
  color:#06231F;box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(53,214,187,.4),0 18px 40px -14px rgba(53,214,187,.75)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(53,214,187,.3),0 8px 20px -12px rgba(53,214,187,.6)}
.btn-ghost{
  background:var(--glass);border-color:var(--line-strong);color:var(--ink);
  backdrop-filter:blur(14px) saturate(120%);
}
.btn-ghost:hover{border-color:rgba(53,214,187,.6);background:rgba(53,214,187,.10);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:var(--r-sm)}
.btn-block{width:100%}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;color:var(--primary);
  font-size:14.5px;font-weight:600;transition:color var(--ease);
}
.link-arrow .arw{transition:transform var(--ease);display:inline-block}
.link-arrow:hover{color:#7BEDD7}
.link-arrow:hover .arw{transform:translateX(4px)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(11,32,39,.82);
  backdrop-filter:blur(18px) saturate(130%);
  border-bottom:1px solid var(--line);
}
.nav-top-inner{
  display:flex;align-items:center;gap:20px;
  min-height:66px;
}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 auto;
  display:grid;place-items:center;
  font-size:14px;font-weight:800;letter-spacing:.02em;color:#06231F;
  background:linear-gradient(140deg,var(--primary),#8CE9D8 60%,var(--accent));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.5),0 10px 24px -14px rgba(53,214,187,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:700;color:var(--ink)}
.brand-sub{font-size:11.5px;letter-spacing:.16em;color:var(--ink-3);text-transform:uppercase}
.nav-search{
  flex:1 1 auto;max-width:420px;position:relative;display:flex;align-items:center;
}
.nav-search svg{position:absolute;left:14px;width:17px;height:17px;color:var(--ink-3);pointer-events:none}
.nav-search input{
  width:100%;padding:11px 16px 11px 40px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line-strong);color:var(--ink);
  font-size:15px;transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.nav-search input::placeholder{color:var(--ink-3)}
.nav-search input:focus{
  outline:none;border-color:rgba(53,214,187,.72);
  background:rgba(53,214,187,.07);
  box-shadow:0 0 0 4px rgba(53,214,187,.14);
}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.hamburger{
  display:none;width:42px;height:42px;border-radius:var(--r-sm);
  background:var(--glass);border:1px solid var(--line-strong);cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform var(--ease),opacity var(--ease)}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.nav-channels{border-top:1px solid var(--line);position:relative}
.channel-scroll{
  display:flex;align-items:center;gap:10px;overflow-x:auto;
  padding:10px 20px;scroll-snap-type:x proximity;scrollbar-width:none;
  max-width:1200px;margin:0 auto;
}
.channel-scroll::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;scroll-snap-align:start;
  padding:8px 18px;border-radius:var(--r-pill);
  font-size:14px;font-weight:500;color:var(--ink-2);
  background:var(--glass);border:1px solid var(--line-strong);
  transition:color var(--ease),border-color var(--ease),background var(--ease),box-shadow var(--ease);
}
.chip:hover{color:var(--ink);border-color:rgba(53,214,187,.5);background:rgba(53,214,187,.09)}
.chip.active{
  color:#06231F;font-weight:700;
  background:linear-gradient(135deg,rgba(53,214,187,.95),rgba(33,188,163,.92));
  border-color:transparent;box-shadow:0 0 0 1px rgba(53,214,187,.5),0 10px 26px -14px rgba(53,214,187,.9);
}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:120;
  background:rgba(8,24,30,.97);backdrop-filter:blur(16px);
  padding:84px 24px 40px;
  transform:translateX(100%);opacity:0;pointer-events:none;
  transition:transform var(--ease),opacity var(--ease);
  overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0);opacity:1;pointer-events:auto}
.drawer-close{
  position:absolute;top:20px;right:20px;width:42px;height:42px;border-radius:var(--r-sm);
  background:var(--glass);border:1px solid var(--line-strong);color:var(--ink);
  font-size:20px;line-height:1;cursor:pointer;
}
.drawer-title{font-size:13px;letter-spacing:.14em;color:var(--ink-3);text-transform:uppercase;margin:22px 0 12px}
.drawer-nav{display:flex;flex-direction:column;gap:10px}
.drawer-nav a{
  padding:14px 18px;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--line);
  font-size:16px;color:var(--ink-2);
}
.drawer-nav a.active{color:#06231F;background:linear-gradient(135deg,var(--primary),var(--primary-600));font-weight:700;border-color:transparent}
.drawer-search{margin-top:26px;position:relative}
.drawer-search input{width:100%;padding:13px 16px;border-radius:var(--r-md);background:var(--glass);border:1px solid var(--line-strong);color:var(--ink);font-size:16px}
.drawer-cta{margin-top:24px}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:clamp(48px,7vw,92px) 0 clamp(40px,6vw,72px)}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(760px 380px at 8% 0%, rgba(53,214,187,.18), transparent 66%),
    radial-gradient(620px 320px at 96% 18%, rgba(217,168,92,.12), transparent 66%);
  pointer-events:none;
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.35fr 1fr;gap:clamp(24px,4vw,56px);align-items:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  background:rgba(53,214,187,.12);border:1px solid rgba(53,214,187,.34);color:var(--primary);
  font-size:13px;font-weight:600;
}
.hero h1{
  font-size:clamp(28px,4vw,48px);line-height:1.25;font-weight:700;
  margin:20px 0 16px;
}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-lead{
  font-size:17px;line-height:1.9;color:var(--ink-2);max-width:620px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-note{margin-top:18px;font-size:13.5px;color:var(--ink-3)}
.hero-visual{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-2);border:1px solid var(--line-strong)}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,32,39,.05) 0%,rgba(11,32,39,.62) 100%);
}
.hero-float{
  position:absolute;left:18px;right:18px;bottom:18px;z-index:2;
  display:grid;grid-template-columns:repeat(3,1fr);gap:10px;
  padding:16px;border-radius:var(--r-md);
  background:rgba(255,255,255,.075);backdrop-filter:blur(14px) saturate(120%);
  border:1px solid rgba(255,255,255,.14);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.22);
}
.hero-float .stat-num{
  font-size:clamp(20px,2.6vw,26px);font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.hero-float .stat-label{font-size:12.5px;color:var(--ink-2);line-height:1.5;margin-top:2px}

/* ============ 图墙 ============ */
.wall{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.wall-item{
  grid-column:span 1;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
  display:flex;flex-direction:column;
}
.wall-item.w2{grid-column:span 2}
.wall-item:hover{transform:translateY(-4px);border-color:rgba(53,214,187,.5);box-shadow:var(--shadow-2)}
.wall-media{position:relative;overflow:hidden}
.wall-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 420ms cubic-bezier(.2,.7,.3,1)}
.wall-item:hover .wall-media img{transform:scale(1.045)}
.wall-media .veil{
  position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,32,39,0) 34%,rgba(11,32,39,.78) 100%);
}
.wall-media .mini-tag{
  position:absolute;left:14px;bottom:14px;
  padding:5px 13px;border-radius:var(--r-pill);font-size:12.5px;font-weight:600;
  background:rgba(53,214,187,.16);color:#A9F2E4;border:1px solid rgba(53,214,187,.4);
  backdrop-filter:blur(8px);
}
.wall-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.wall-body h3{font-size:18px;font-weight:600}
.wall-body p{font-size:15px;line-height:1.85;color:var(--ink-2)}
.wall-body .wall-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}

/* ============ 两列文字卡 ============ */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.text-card{
  padding:clamp(22px,3vw,32px);border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
  border:1px solid var(--line);box-shadow:var(--shadow-1);
  position:relative;overflow:hidden;
}
.text-card::before{
  content:"";position:absolute;left:0;top:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(53,214,187,.6),rgba(255,255,255,0));
}
.text-card h3{font-size:19px;margin-bottom:14px}
.text-card p{color:var(--ink-2);font-size:15.5px;line-height:1.9}
.text-card ul{margin-top:16px;display:flex;flex-direction:column;gap:12px}
.text-card li{
  display:flex;gap:12px;font-size:15px;line-height:1.8;color:var(--ink-2);
  padding-bottom:12px;border-bottom:1px solid var(--line);
}
.text-card li:last-child{border-bottom:0;padding-bottom:0}
.tick{
  flex:0 0 auto;width:20px;height:20px;margin-top:3px;border-radius:50%;
  display:grid;place-items:center;font-size:12px;font-weight:700;color:#06231F;
  background:linear-gradient(140deg,var(--primary),var(--primary-600));
}
.tick.gold{background:linear-gradient(140deg,var(--accent),#C08F45);color:#2A1C06}

/* ============ 阅读带（浅色） ============ */
.band-wrap{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line-strong);
  display:grid;grid-template-columns:1fr 1fr;background:var(--bg-elev);
}
.band-media{position:relative;min-height:280px}
.band-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.band-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,32,39,.72),rgba(11,32,39,.12))}
.band-copy{padding:clamp(24px,3.4vw,44px);background:var(--paper);color:var(--paper-ink)}
.band-copy h3{font-size:clamp(20px,2.2vw,26px);color:var(--paper-ink);margin-bottom:14px}
.band-copy p{font-size:16px;line-height:1.9;color:#3C4F55}
.band-copy ul{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.band-copy li{display:flex;gap:10px;font-size:15px;line-height:1.8;color:#33474D}
.band-copy li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary-600);margin-top:11px;flex:0 0 auto}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:.85fr 1.4fr;gap:clamp(24px,4vw,52px);align-items:start}
.faq-side{position:sticky;top:132px}
.faq-side h2{font-size:clamp(22px,2.8vw,30px);margin-bottom:12px}
.faq-side p{color:var(--ink-2);font-size:15.5px;line-height:1.9}
.faq-list{display:flex;flex-direction:column;gap:12px}
details.qa{
  border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--glass);backdrop-filter:blur(12px);
  transition:border-color var(--ease),background var(--ease),box-shadow var(--ease);
}
details.qa[open]{border-color:rgba(53,214,187,.5);background:rgba(53,214,187,.06);box-shadow:var(--shadow-1)}
details.qa summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:600;color:var(--ink);
}
details.qa summary::-webkit-details-marker{display:none}
details.qa summary .caret{
  flex:0 0 auto;width:18px;height:18px;color:var(--primary);
  transition:transform var(--ease);
}
details.qa[open] summary .caret{transform:rotate(180deg)}
.qa-body{padding:0 22px 20px;font-size:15px;line-height:1.9;color:var(--ink-2);border-top:1px solid var(--line);margin-top:-2px;padding-top:16px}

/* ============ CTA 条 ============ */
.cta-band{
  border-radius:var(--r-lg);padding:clamp(28px,4vw,52px);
  background:linear-gradient(120deg,rgba(19,74,78,.96),rgba(15,56,66,.96) 55%,rgba(18,49,59,.96));
  border:1px solid rgba(53,214,187,.34);
  box-shadow:0 0 0 1px rgba(53,214,187,.12),0 30px 70px -30px rgba(0,0,0,.85);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
}
.cta-band h3{font-size:clamp(20px,2.4vw,28px);margin-bottom:10px}
.cta-band p{color:var(--ink-2);font-size:15.5px;max-width:620px;line-height:1.9}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 页脚 ============ */
.site-footer{margin-top:clamp(48px,7vw,96px);background:rgba(7,22,28,.86);border-top:1px solid var(--line)}
.footer-stone{height:1px;background:linear-gradient(90deg,rgba(255,255,255,0),rgba(53,214,187,.5),rgba(217,168,92,.35),rgba(255,255,255,0))}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;
  padding:clamp(40px,5vw,64px) 0 32px;
}
.footer-brand p{margin-top:16px;color:var(--ink-3);font-size:14.5px;line-height:1.9;max-width:340px}
.footer-col h4{font-size:15px;color:var(--ink);margin-bottom:16px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{color:var(--ink-3);font-size:14.5px;transition:color var(--ease);position:relative}
.footer-col a:hover{color:var(--primary)}
.footer-key{
  display:flex;flex-wrap:wrap;gap:10px 18px;
  padding:22px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.footer-key a{
  font-size:13.5px;color:var(--ink-2);
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.footer-key a:hover{color:var(--primary);border-color:rgba(53,214,187,.45);background:rgba(53,214,187,.08)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:22px 0 32px;color:var(--ink-3);font-size:13.5px;
}
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:80;
  width:46px;height:46px;border-radius:50%;
  background:var(--glass);border:1px solid var(--line-strong);color:var(--primary);
  backdrop-filter:blur(12px);cursor:pointer;font-size:18px;line-height:1;
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity var(--ease),transform var(--ease),border-color var(--ease);
}
.to-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.to-top:hover{border-color:rgba(53,214,187,.6)}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr}
  .hero-visual{order:-1}
  .hero-visual img{aspect-ratio:16/9}
  .wall{grid-template-columns:repeat(2,1fr)}
  .wall-item.w2{grid-column:span 2}
  .faq-grid{grid-template-columns:1fr}
  .faq-side{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .band-wrap{grid-template-columns:1fr}
  .band-media{min-height:200px;position:relative}
  .band-media img{position:relative;height:200px}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 16px}
  .channel-scroll{padding:10px 16px}
  .nav-search{display:none}
  .hamburger{display:flex}
  .nav-actions .btn{display:none}
  .duo{grid-template-columns:1fr}
  .hero-float{grid-template-columns:1fr;gap:8px;padding:14px}
  .hero-float .stat{display:flex;align-items:baseline;gap:10px}
  .hero-float .stat-label{margin-top:0}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .cta-band{flex-direction:column;align-items:flex-start}
  .footer-bottom{flex-direction:column}
}
@media (max-width:560px){
  .wall{grid-template-columns:1fr}
  .wall-item.w2{grid-column:span 1}
  .hero h1{font-size:27px}
  .btn{padding:12px 20px;font-size:14.5px}
  .wall-body{padding:18px}
  details.qa summary{padding:16px 18px;font-size:15px}
  .qa-body{padding:14px 18px 18px}
  .to-top{right:14px;bottom:18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --bg-deep:#0B2027;
  --bg:#0E2730;
  --bg-elev:#12313B;
  --paper:#F7F4EF;
  --paper-2:#EFEAE2;
  --paper-ink:#1B2A2F;
  --paper-ink-2:#4A5A60;
  --paper-line:#DDD5C9;
  --primary:#35D6BB;
  --primary-600:#21BCA3;
  --primary-ink:#0F7F6E;
  --accent:#D9A85C;
  --accent-2:#7FA8B8;
  --ink:#E8F1F2;
  --ink-2:#B9CBD2;
  --ink-3:#8AA0A9;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.055);
  --glow:0 0 0 1px rgba(53,214,187,.28), 0 12px 34px -14px rgba(53,214,187,.55);
  --shadow:0 1px 2px rgba(0,0,0,.35), 0 18px 44px -22px rgba(0,0,0,.6);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(900px 420px at 12% -8%, rgba(53,214,187,.14), transparent 62%),
    radial-gradient(700px 380px at 92% 4%, rgba(217,168,92,.10), transparent 60%),
    var(--bg-deep);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color 220ms var(--ease),border-color 220ms var(--ease),background 220ms var(--ease);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 顶部公告条 ---------- */
.notice-bar{background:linear-gradient(90deg, rgba(53,214,187,.14), rgba(217,168,92,.10));border-bottom:1px solid var(--line);}
.notice-inner{display:flex;align-items:center;gap:16px;min-height:42px;font-size:13px;color:var(--ink-2);}
.notice-tag{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:var(--r-pill);background:rgba(217,168,92,.16);color:var(--accent);font-weight:600;white-space:nowrap;}
.notice-time{color:var(--ink);font-weight:700;letter-spacing:.02em;}
.notice-link{margin-left:auto;color:var(--primary);white-space:nowrap;}
.notice-link:hover{color:var(--ink);}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(11,32,39,.86);backdrop-filter:blur(16px) saturate(130%);-webkit-backdrop-filter:blur(16px) saturate(130%);border-bottom:1px solid var(--line);}
.topbar-inner{display:flex;align-items:center;gap:20px;min-height:68px;}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{display:grid;place-items:center;width:40px;height:40px;border-radius:var(--r-sm);background:linear-gradient(140deg, var(--primary), var(--primary-600));color:#06231F;font-weight:800;font-size:15px;letter-spacing:.04em;box-shadow:var(--glow);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:700;color:var(--ink);}
.brand-sub{font-size:11px;color:var(--ink-3);letter-spacing:.16em;text-transform:uppercase;}
.search{flex:1;display:flex;align-items:center;gap:10px;max-width:420px;padding:0 16px;height:42px;border-radius:var(--r-md);background:var(--glass);border:1px solid var(--line);transition:border-color 220ms var(--ease),box-shadow 220ms var(--ease);}
.search:focus-within{border-color:rgba(53,214,187,.6);box-shadow:var(--glow);}
.search svg{flex-shrink:0;width:16px;height:16px;stroke:var(--ink-3);}
.search input{flex:1;background:none;border:0;outline:none;font-size:15px;color:var(--ink);}
.search input::placeholder{color:var(--ink-3);}
.topbar-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.menu-toggle{display:none;width:42px;height:42px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--glass);flex-direction:column;justify-content:center;align-items:center;gap:4px;}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-2);transition:transform 220ms var(--ease),opacity 220ms var(--ease);}
.menu-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.menu-toggle.is-open span:nth-child(2){opacity:0;}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.channel-scroll{display:flex;gap:10px;overflow-x:auto;scroll-snap-type:x proximity;padding:0 20px 14px;max-width:1200px;margin:0 auto;scrollbar-width:none;}
.channel-scroll::-webkit-scrollbar{display:none;}
.chip{scroll-snap-align:start;flex-shrink:0;display:inline-flex;align-items:center;padding:8px 16px;border-radius:var(--r-pill);border:1px solid var(--line);background:var(--glass);color:var(--ink-2);font-size:14px;white-space:nowrap;}
.chip:hover{color:var(--ink);border-color:var(--line-strong);transform:translateY(-1px);}
.chip.active{background:rgba(53,214,187,.16);border-color:rgba(53,214,187,.45);color:var(--primary);box-shadow:inset 0 0 0 1px rgba(53,214,187,.18);}

.mobile-drawer{position:fixed;left:0;right:0;top:0;bottom:0;z-index:55;padding:100px 20px 40px;background:rgba(9,26,32,.98);backdrop-filter:blur(18px);transform:translateY(-102%);transition:transform 260ms var(--ease);overflow-y:auto;}
.mobile-drawer.is-open{transform:translateY(0);}
.drawer-search{display:flex;align-items:center;gap:10px;height:48px;padding:0 16px;border-radius:var(--r-md);background:var(--glass);border:1px solid var(--line);margin-bottom:22px;}
.drawer-search input{flex:1;background:none;border:0;outline:none;font-size:16px;color:var(--ink);}
.drawer-links{display:flex;flex-direction:column;gap:10px;margin-bottom:26px;}
.drawer-links a{padding:14px 16px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--glass);font-size:16px;color:var(--ink-2);}
.drawer-links a.active{color:var(--primary);border-color:rgba(53,214,187,.42);background:rgba(53,214,187,.12);}
.no-scroll{overflow:hidden;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-md);font-size:15px;font-weight:600;border:1px solid transparent;transition:all 220ms var(--ease);}
.btn-primary{background:linear-gradient(135deg, var(--primary), var(--primary-600));color:#04211C;box-shadow:var(--glow);}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(53,214,187,.4), 0 18px 40px -14px rgba(53,214,187,.7);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:var(--glass);border-color:var(--line-strong);color:var(--ink);}
.btn-ghost:hover{border-color:rgba(53,214,187,.55);background:rgba(53,214,187,.08);transform:translateY(-2px);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:600;}
.link-arrow span{transition:transform 220ms var(--ease);}
.link-arrow:hover span{transform:translateX(3px);}

/* ---------- 面包屑 ---------- */
.crumb-bar{border-bottom:1px solid var(--line);background:rgba(255,255,255,.02);}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;min-height:52px;font-size:13px;color:var(--ink-3);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:rgba(255,255,255,.24);}
.crumb .now{color:var(--ink-2);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头 ---------- */
.article-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
.article-hero::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.30;}
.article-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg, rgba(11,32,39,.72) 0%, rgba(11,32,39,.94) 70%, var(--bg-deep) 100%);}
.article-hero .container{position:relative;z-index:2;padding-top:clamp(48px,7vw,84px);padding-bottom:clamp(36px,5vw,60px);}
.hero-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:18px;}
.tag-pill{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);font-size:13px;background:rgba(53,214,187,.14);color:var(--primary);border:1px solid rgba(53,214,187,.3);}
.tag-pill.gold{background:rgba(217,168,92,.14);color:var(--accent);border-color:rgba(217,168,92,.32);}
.article-hero h1{font-size:clamp(26px,3.6vw,44px);line-height:1.28;font-weight:700;letter-spacing:0;max-width:900px;}
.hero-sub{margin-top:16px;max-width:760px;font-size:16px;color:var(--ink-2);}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:26px;padding-top:20px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3);}
.hero-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--ink-3);display:inline-block;margin-right:8px;vertical-align:middle;}
.hero-meta strong{color:var(--ink-2);font-weight:600;}
.share-group{display:flex;align-items:center;gap:10px;margin-left:auto;}
.share-btn{display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 14px;border-radius:var(--r-pill);border:1px solid var(--line);background:var(--glass);color:var(--ink-2);font-size:13px;}
.share-btn:hover{border-color:rgba(53,214,187,.5);color:var(--primary);}
.share-btn.done{color:var(--primary);border-color:rgba(53,214,187,.5);}

/* ---------- 布局 ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:32px;align-items:start;padding:clamp(40px,5vw,64px) 0 clamp(40px,6vw,80px);}
.main-col{min-width:0;}

/* ---------- 阅读卡 ---------- */
.reading-card{background:var(--paper);color:var(--paper-ink);border-radius:var(--r-lg);box-shadow:var(--shadow);overflow:hidden;}
.reading-card .rc-head{display:flex;align-items:center;gap:12px;padding:16px 28px;background:var(--paper-2);border-bottom:1px solid var(--paper-line);font-size:13px;color:var(--paper-ink-2);}
.rc-dot{width:8px;height:8px;border-radius:50%;background:var(--primary-ink);}
.rc-head .rc-right{margin-left:auto;font-variant-numeric:tabular-nums;}
.article-body{padding:clamp(24px,4vw,44px);font-size:16.5px;line-height:1.9;color:var(--paper-ink);max-width:780px;margin:0 auto;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{position:relative;margin:1.9em 0 .8em;padding-left:16px;font-size:clamp(20px,2.4vw,26px);line-height:1.4;font-weight:700;color:var(--paper-ink);}
.article-body h2::before{content:"";position:absolute;left:0;top:.22em;width:4px;height:1.05em;border-radius:2px;background:var(--primary-ink);}
.article-body h3{margin:1.5em 0 .6em;font-size:19px;line-height:1.5;font-weight:600;color:#2C4A50;}
.article-body h4{margin:1.3em 0 .5em;font-size:17px;font-weight:600;color:#2C4A50;}
.article-body a{color:var(--primary-ink);border-bottom:1px solid rgba(15,127,110,.35);}
.article-body a:hover{color:#0A5F53;border-bottom-color:#0A5F53;}
.article-body strong{font-weight:700;color:#12232A;}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:0;}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;margin-bottom:.55em;}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--primary-ink);}
.article-body ol{counter-reset:li;}
.article-body ol li{counter-increment:li;}
.article-body ol li::before{content:counter(li);position:absolute;left:0;top:0;color:var(--primary-ink);font-weight:700;font-size:15px;}
.article-body blockquote{margin:1.6em 0;padding:16px 20px;border-left:3px solid var(--accent);background:#F1EBE0;border-radius:0 var(--r-sm) var(--r-sm) 0;color:#3E4F55;}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-md);margin:1.4em 0 .6em;width:100%;height:auto;}
.article-body figure{margin:1.4em 0;}
.article-body figcaption{font-size:13px;color:var(--paper-ink-2);text-align:center;margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;background:#fff;border-radius:var(--r-sm);overflow:hidden;}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--paper-line);text-align:left;vertical-align:top;}
.article-body th{background:rgba(53,214,187,.16);color:#123F39;font-weight:600;}
.article-body tr:nth-child(even) td{background:#FBF9F5;}
.article-body pre{margin:1.4em 0;padding:16px 18px;border-radius:var(--r-md);background:#0E2730;color:#DCEAEC;overflow-x:auto;font-size:14px;line-height:1.7;}
.article-body code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.94em;background:rgba(15,127,110,.12);padding:2px 6px;border-radius:6px;}
.article-body pre code{background:none;padding:0;color:inherit;}
.article-body hr{border:0;border-top:1px solid var(--paper-line);margin:2em 0;}

/* ---------- 目录折叠条(移动) ---------- */
.toc-fold{display:none;margin-bottom:18px;border-radius:var(--r-lg);border:1px solid var(--line);background:var(--glass);overflow:hidden;}
.toc-fold summary{padding:14px 18px;font-size:14px;font-weight:600;color:var(--ink-2);cursor:pointer;list-style:none;}
.toc-fold summary::-webkit-details-marker{display:none;}
.toc-fold ol{padding:0 18px 16px;}
.toc-fold li{margin-bottom:8px;}
.toc-fold a{font-size:14px;color:var(--ink-3);}
.toc-fold a:hover{color:var(--primary);}

/* ---------- 侧栏 ---------- */
.side-col{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px;}
.side-card{border-radius:var(--r-lg);border:1px solid var(--line);background:var(--glass);backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%);padding:20px 22px;position:relative;box-shadow:var(--shadow);}
.side-card::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);}
.side-title{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--ink);margin-bottom:14px;}
.side-title i{display:block;width:4px;height:14px;border-radius:2px;background:var(--primary);}
#tocList li{margin-bottom:9px;}
#tocList a{display:block;font-size:14px;line-height:1.6;color:var(--ink-3);padding-left:12px;border-left:2px solid transparent;}
#tocList a:hover{color:var(--ink);}
#tocList a.current{color:var(--primary);border-left-color:var(--primary);}
.mini-list li{padding:12px 0;border-bottom:1px solid var(--line);}
.mini-list li:last-child{border-bottom:0;padding-bottom:0;}
.mini-list a{font-size:14px;color:var(--ink-2);line-height:1.6;display:block;}
.mini-list a:hover{color:var(--primary);}
.mini-list .mini-label{display:block;font-size:12px;color:var(--ink-3);margin-top:4px;}

/* ---------- 空态 ---------- */
.empty-state{padding:56px 28px;text-align:center;background:var(--paper);color:var(--paper-ink);border-radius:var(--r-lg);}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--paper-ink-2);margin-bottom:22px;}
.empty-state .btn-primary{color:#04211C;}

/* ---------- 文末区 ---------- */
.after-card{margin-top:28px;border-radius:var(--r-lg);border:1px solid var(--line);background:var(--glass);padding:24px 26px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;}
.tag-row .tag{display:inline-flex;padding:6px 14px;border-radius:var(--r-pill);font-size:13px;color:var(--ink-2);background:rgba(255,255,255,.05);border:1px solid var(--line);}
.tag-row .tag:hover{color:var(--primary);border-color:rgba(53,214,187,.45);}
.pager{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.pager a{display:block;padding:16px 18px;border-radius:var(--r-md);border:1px solid var(--line);background:rgba(255,255,255,.035);transition:all 220ms var(--ease);}
.pager a:hover{transform:translateY(-4px);border-color:rgba(53,214,187,.45);background:rgba(53,214,187,.07);}
.pager .pager-label{display:block;font-size:12px;color:var(--ink-3);margin-bottom:6px;}
.pager .pager-title{font-size:15px;color:var(--ink);line-height:1.6;}
.back-row{margin-top:22px;display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 板块标题 ---------- */
.section{padding:clamp(46px,6vw,80px) 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(21px,2.6vw,30px);line-height:1.35;font-weight:700;}
.section-head p{margin-top:8px;font-size:14px;color:var(--ink-3);max-width:620px;}

/* ---------- 相关推荐卡 ---------- */
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.rec-card{display:flex;flex-direction:column;border-radius:var(--r-lg);border:1px solid var(--line);background:var(--glass);overflow:hidden;transition:transform 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);box-shadow:var(--shadow);}
.rec-card:hover{transform:translateY(-4px);border-color:rgba(53,214,187,.45);box-shadow:0 22px 48px -24px rgba(0,0,0,.75);}
.rec-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease);}
.rec-card:hover .rec-thumb img{transform:scale(1.05);}
.rec-body{padding:18px 20px 22px;flex:1;display:flex;flex-direction:column;}
.rec-body h3{font-size:16.5px;line-height:1.55;font-weight:600;margin-bottom:10px;}
.rec-body p{font-size:14px;color:var(--ink-3);line-height:1.7;margin-bottom:16px;flex:1;}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:280px minmax(0,1fr);gap:40px;align-items:start;}
.faq-side h2{font-size:clamp(21px,2.5vw,28px);line-height:1.4;margin-bottom:12px;}
.faq-side p{font-size:14px;color:var(--ink-3);}
.faq-list details{border-bottom:1px solid var(--line);padding:4px 0;}
.faq-list summary{display:flex;align-items:center;gap:14px;padding:18px 4px;font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;list-style:none;transition:color 220ms var(--ease);}
.faq-list summary::-webkit-details-marker{display:none;}
.faq-list summary:hover{color:var(--primary);}
.faq-arrow{margin-left:auto;flex-shrink:0;width:22px;height:22px;display:grid;place-items:center;color:var(--ink-3);transition:transform 240ms var(--ease),color 220ms var(--ease);}
.faq-list details[open] summary{color:var(--primary);}
.faq-list details[open] .faq-arrow{transform:rotate(180deg);color:var(--primary);}
.faq-list details[open]{border-left:3px solid var(--primary);padding-left:14px;}
.faq-answer{padding:0 4px 20px;font-size:15px;color:var(--ink-2);line-height:1.85;}

/* ---------- CTA / 表单 ---------- */
.cta-panel{border-radius:var(--r-lg);border:1px solid rgba(53,214,187,.26);background:linear-gradient(135deg, rgba(53,214,187,.14), rgba(18,49,59,.9) 55%, rgba(217,168,92,.10));padding:clamp(26px,4vw,46px);display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center;box-shadow:var(--shadow);}
.cta-panel h2{font-size:clamp(22px,2.8vw,30px);line-height:1.35;margin-bottom:12px;}
.cta-panel > div > p{color:var(--ink-2);font-size:15px;max-width:520px;}
.cta-points{margin-top:22px;display:flex;flex-direction:column;gap:10px;}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--ink-2);}
.cta-points li svg{flex-shrink:0;margin-top:5px;width:16px;height:16px;stroke:var(--primary);}
.form-card{border-radius:var(--r-lg);border:1px solid var(--line);background:rgba(9,26,32,.55);backdrop-filter:blur(14px);padding:24px 24px 26px;position:relative;}
.form-card::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.32),transparent);}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--ink-3);margin-bottom:8px;}
.field input,.field select{width:100%;height:46px;padding:0 14px;border-radius:var(--r-md);border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--ink);font-size:16px;outline:none;transition:border-color 220ms var(--ease),box-shadow 220ms var(--ease);}
.field input::placeholder{color:var(--ink-3);}
.field input:focus,.field select:focus{border-color:rgba(53,214,187,.65);box-shadow:var(--glow);}
.field select option{background:var(--bg-elev);color:var(--ink);}
.field.error input{border-color:#E36A6A;box-shadow:0 0 0 1px rgba(227,106,106,.3);}
.field .err-msg{display:none;margin-top:6px;font-size:12.5px;color:#F09A9A;}
.field.error .err-msg{display:block;}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--ink-3);margin:6px 0 18px;}
.check input{width:16px;height:16px;margin-top:4px;accent-color:var(--primary);}
.form-tip{margin-top:14px;padding:11px 14px;border-radius:var(--r-sm);font-size:13.5px;display:none;}
.form-tip.ok{display:block;background:rgba(53,214,187,.14);color:var(--primary);border:1px solid rgba(53,214,187,.35);}
.form-tip.bad{display:block;background:rgba(227,106,106,.12);color:#F0A5A5;border:1px solid rgba(227,106,106,.35);}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:20px;background:linear-gradient(180deg, rgba(255,255,255,.02), rgba(0,0,0,.22));border-top:1px solid var(--line);}
.footer-stone{height:1px;background:linear-gradient(90deg,transparent,rgba(53,214,187,.5),rgba(217,168,92,.5),transparent);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;padding:clamp(40px,5vw,64px) 0 30px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--ink-3);line-height:1.8;max-width:340px;}
.footer-col h4{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:16px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul a{font-size:14px;color:var(--ink-3);}
.footer-col ul a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}
.footer-key{display:flex;flex-wrap:wrap;gap:10px 22px;padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.footer-key a{font-size:13px;color:var(--ink-3);}
.footer-key a:hover{color:var(--primary);}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding:22px 0 34px;font-size:13px;color:var(--ink-3);}

/* ---------- 返回顶部 ---------- */
.to-top{position:fixed;right:22px;bottom:26px;z-index:50;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;background:var(--glass);border:1px solid var(--line-strong);backdrop-filter:blur(12px);color:var(--ink-2);opacity:0;visibility:hidden;transform:translateY(10px);transition:all 260ms var(--ease);}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{color:var(--primary);border-color:rgba(53,214,187,.5);box-shadow:var(--glow);}

/* ---------- 阅读进度 ---------- */
.read-progress{position:fixed;left:0;top:0;height:2px;width:0;z-index:80;background:linear-gradient(90deg,var(--primary),var(--accent));transition:width 120ms linear;}

@media (max-width:1180px){
  .layout{grid-template-columns:minmax(0,1fr);}
  .side-col{position:static;}
  .side-col .side-card.toc-card{display:none;}
  .toc-fold{display:block;}
}
@media (max-width:1024px){
  .search{display:none;}
  .menu-toggle{display:flex;}
  .cta-panel{grid-template-columns:1fr;}
  .faq-wrap{grid-template-columns:1fr;gap:24px;}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .topbar-inner{min-height:62px;gap:12px;}
  .brand-mark{width:36px;height:36px;font-size:14px;}
  .brand-name{font-size:15.5px;}
  .channel-scroll{padding:0 16px 12px;}
  .hero-meta{gap:12px;}
  .share-group{margin-left:0;width:100%;}
  .layout{gap:22px;}
  .article-body{font-size:16px;padding:22px 18px 30px;}
  .reading-card .rc-head{padding:14px 18px;}
  .pager{grid-template-columns:1fr;}
  .rec-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:560px){
  .article-hero h1{font-size:24px;}
  .hero-sub{font-size:15px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:20px;}
  .article-body h3{font-size:17.5px;}
  .rec-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-panel{padding:22px 18px;}
  .to-top{right:14px;bottom:16px;}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category3 */
:root{
  --bg-deep:#0B2027;
  --bg:#0E2730;
  --bg-elev:#12313B;
  --paper:#F7F4EF;
  --paper-ink:#1B2A2F;
  --primary:#35D6BB;
  --primary-600:#21BCA3;
  --accent:#D9A85C;
  --accent-2:#7FA8B8;
  --ink:#E8F1F2;
  --ink-2:#B9CBD2;
  --ink-3:#8AA0A9;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.055);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --shadow:0 1px 2px rgba(0,0,0,.35),0 18px 44px -22px rgba(0,0,0,.6);
  --shadow-hover:0 2px 4px rgba(0,0,0,.4),0 26px 56px -22px rgba(0,0,0,.72);
  --glow:0 0 0 1px rgba(53,214,187,.28),0 12px 34px -14px rgba(53,214,187,.55);
  --t:220ms cubic-bezier(.2,.7,.3,1);
  --header-h:118px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:
    radial-gradient(1200px 520px at 50% -180px,rgba(53,214,187,.14),transparent 70%),
    linear-gradient(180deg,var(--bg-deep) 0%,var(--bg) 42%,var(--bg-deep) 100%);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-md)}
a{color:inherit;text-decoration:none;transition:color var(--t),border-color var(--t),background var(--t),transform var(--t)}
a:hover{color:var(--primary)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700}
h1{font-size:clamp(28px,4vw,46px);line-height:1.25}
h2{font-size:clamp(22px,2.8vw,32px)}
h3{font-size:19px;line-height:1.45;font-weight:600}
h4{font-size:16px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(53,214,187,.32)}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:clamp(56px,8vw,104px) 0}
.section-head{max-width:760px;margin-bottom:36px}
.section-head p{margin-top:12px;color:var(--ink-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.4px;color:var(--accent);
  border:1px solid rgba(217,168,92,.34);
  background:rgba(217,168,92,.10);
  padding:5px 14px;border-radius:var(--r-pill);margin-bottom:18px;
}
.tnum{font-variant-numeric:tabular-nums}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:60;backdrop-filter:blur(16px) saturate(130%);background:rgba(11,32,39,.86);border-bottom:1px solid var(--line)}
.nav-top-inner{display:flex;align-items:center;gap:22px;min-height:66px}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;display:grid;place-items:center;border-radius:12px;
  background:linear-gradient(145deg,var(--primary),var(--primary-600));
  color:#062B26;font-weight:800;font-size:15px;letter-spacing:.5px;
  box-shadow:var(--glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:700;color:var(--ink)}
.brand-sub{font-size:11.5px;color:var(--ink-3);letter-spacing:1.2px;text-transform:uppercase}
.brand:hover .brand-name{color:var(--primary)}

.nav-search{position:relative;flex:1 1 auto;max-width:420px}
.nav-search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:17px;height:17px;stroke:var(--ink-3);fill:none;stroke-width:1.8}
.nav-search input{
  width:100%;padding:11px 16px 11px 42px;border-radius:var(--r-md);
  background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--ink);
  font-size:15px;transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.nav-search input::placeholder{color:var(--ink-3)}
.nav-search input:focus{outline:none;border-color:rgba(53,214,187,.6);background:rgba(53,214,187,.07);box-shadow:0 0 0 4px rgba(53,214,187,.12)}

.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-md);font-size:15.5px;font-weight:600;
  border:1px solid transparent;transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),color var(--t);
}
.btn-sm{padding:10px 20px;font-size:14.5px}
.btn-primary{background:linear-gradient(140deg,var(--primary),var(--primary-600));color:#062B26;box-shadow:var(--glow)}
.btn-primary:hover{color:#04231F;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(53,214,187,.4),0 20px 40px -14px rgba(53,214,187,.7)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.06);border-color:var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:rgba(53,214,187,.55);background:rgba(53,214,187,.10);transform:translateY(-2px)}
.hamburger{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.05);position:relative}
.hamburger span{position:absolute;left:11px;right:11px;height:2px;background:var(--ink);border-radius:2px;transition:transform var(--t),opacity var(--t)}
.hamburger span:nth-child(1){top:14px}
.hamburger span:nth-child(2){top:20px}
.hamburger span:nth-child(3){top:26px}
.hamburger.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.hamburger.is-open span:nth-child(2){opacity:0}
.hamburger.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.nav-channels{border-top:1px solid var(--line);background:rgba(11,32,39,.72)}
.channel-wrap{position:relative}
.channel-scroll{
  display:flex;gap:10px;align-items:center;padding:11px 0;
  overflow-x:auto;scroll-snap-type:x proximity;scrollbar-width:none;
}
.channel-scroll::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;scroll-snap-align:start;
  padding:8px 18px;border-radius:var(--r-pill);font-size:14.5px;
  border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--ink-2);
  white-space:nowrap;transition:all var(--t);
}
.chip:hover{color:var(--ink);border-color:rgba(53,214,187,.4);background:rgba(53,214,187,.09)}
.chip.active{background:rgba(53,214,187,.16);border-color:rgba(53,214,187,.5);color:var(--primary);box-shadow:inset 0 0 14px rgba(53,214,187,.18);font-weight:600}

/* ---------- Drawer ---------- */
.drawer{
  position:fixed;inset:var(--header-h) 0 0 0;z-index:55;
  background:rgba(9,26,32,.98);backdrop-filter:blur(18px);
  transform:translateY(-12px);opacity:0;visibility:hidden;pointer-events:none;
  transition:transform var(--t),opacity var(--t),visibility var(--t);
  overflow-y:auto;padding:26px 20px 60px;
}
.drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;pointer-events:auto}
.drawer .nav-search{max-width:100%;margin-bottom:22px}
.drawer-links{display:flex;flex-direction:column;gap:10px;margin-bottom:26px}
.drawer-links a{
  padding:14px 18px;border-radius:var(--r-md);border:1px solid var(--line);
  background:rgba(255,255,255,.045);font-size:16px;color:var(--ink-2);
}
.drawer-links a.active{border-color:rgba(53,214,187,.5);color:var(--primary);background:rgba(53,214,187,.12)}
.drawer .btn{width:100%}

/* ---------- Page hero ---------- */
.page-hero{padding:clamp(36px,6vw,64px) 0 clamp(28px,4vw,44px)}
.breadcrumb{font-size:13.5px;color:var(--ink-3);margin-bottom:18px}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb span{margin:0 8px;color:var(--ink-3)}
.page-hero h1{margin-bottom:16px;max-width:900px}
.page-sub{color:var(--ink-2);font-size:17px;max-width:720px}
.hero-figure{
  position:relative;margin-top:34px;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.hero-figure img{width:100%;height:clamp(180px,26vw,320px);object-fit:cover;border-radius:0}
.hero-figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,32,39,.18),rgba(11,32,39,.72))}
.hero-figure figcaption{
  position:absolute;left:22px;bottom:18px;z-index:2;font-size:14px;color:var(--ink-2);
  background:rgba(11,32,39,.6);border:1px solid var(--line);padding:6px 14px;border-radius:var(--r-pill);
}

/* ---------- Table ---------- */
.table-card{
  border-radius:var(--r-lg);border:1px solid var(--line);
  background:var(--glass);backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow);overflow:hidden;position:relative;
}
.table-card::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.32),transparent)}
.table-scroll{overflow-x:auto}
.p-table{width:100%;border-collapse:collapse;min-width:760px}
.p-table thead th{
  text-align:left;font-size:13.5px;font-weight:600;letter-spacing:.4px;color:var(--ink-2);
  padding:18px 22px;background:rgba(53,214,187,.09);border-bottom:1px solid var(--line-strong);
  white-space:nowrap;
}
.p-table tbody tr{border-bottom:1px solid var(--line);transition:background var(--t)}
.p-table tbody tr:last-child{border-bottom:0}
.p-table tbody tr:hover{background:rgba(255,255,255,.045)}
.p-table th[scope="row"]{
  text-align:left;padding:20px 22px;font-size:16px;font-weight:600;color:var(--ink);
  white-space:nowrap;vertical-align:top;
}
.p-table td{padding:20px 22px;font-size:15px;color:var(--ink-2);vertical-align:top}
.p-table td:first-of-type{color:var(--ink)}
.prio{display:inline-block;padding:3px 13px;border-radius:var(--r-pill);font-size:13px;font-weight:600}
.prio-high{background:rgba(53,214,187,.16);color:var(--primary);border:1px solid rgba(53,214,187,.4)}
.prio-mid{background:rgba(217,168,92,.16);color:var(--accent);border:1px solid rgba(217,168,92,.38)}
.prio-low{background:rgba(127,168,184,.16);color:var(--accent-2);border:1px solid rgba(127,168,184,.4)}
.table-note{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  margin-top:18px;font-size:14px;color:var(--ink-3);
}
.legend{display:flex;gap:16px;flex-wrap:wrap}
.legend b{color:var(--ink-2);font-weight:600}

/* ---------- Reading cards ---------- */
.read-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.read-card{
  border-radius:var(--r-lg);border:1px solid var(--line);background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);padding:28px;box-shadow:var(--shadow);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);position:relative;overflow:hidden;
}
.read-card::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent)}
.read-card:hover{transform:translateY(-4px);border-color:rgba(53,214,187,.42);box-shadow:var(--shadow-hover)}
.read-card h3{margin-bottom:14px;color:var(--ink)}
.read-card h3::before{content:"";display:inline-block;width:4px;height:16px;background:var(--primary);border-radius:2px;margin-right:10px;vertical-align:-2px}
.read-card p{color:var(--ink-2);font-size:15.5px}
.read-card ul{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.read-card li{position:relative;padding-left:20px;color:var(--ink-2);font-size:15px}
.read-card li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;background:var(--accent);transform:rotate(45deg)}
.read-card .read-tag{
  display:inline-flex;margin-bottom:16px;font-size:12.5px;color:var(--accent-2);
  border:1px solid rgba(127,168,184,.4);background:rgba(127,168,184,.10);
  padding:3px 12px;border-radius:var(--r-pill);
}

/* ---------- Level ---------- */
.level-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.level-card{
  border-radius:var(--r-lg);border:1px solid var(--line);background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
  padding:28px;box-shadow:var(--shadow);transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.level-card:hover{transform:translateY(-4px);border-color:rgba(53,214,187,.42);box-shadow:var(--shadow-hover)}
.level-num{font-size:34px;font-weight:800;color:rgba(53,214,187,.55);font-variant-numeric:tabular-nums;line-height:1}
.level-card h3{margin:14px 0 12px;color:var(--ink)}
.level-card ul{display:flex;flex-direction:column;gap:10px;border-top:1px solid var(--line);padding-top:16px}
.level-card li{position:relative;padding-left:20px;color:var(--ink-2);font-size:15px}
.level-card li::before{content:"";position:absolute;left:0;top:9px;width:14px;height:8px;border-left:2px solid var(--primary);border-bottom:2px solid var(--primary);transform:rotate(-45deg) scale(.72)}
.level-card.is-accent{border-color:rgba(217,168,92,.4)}
.level-card.is-accent .level-num{color:rgba(217,168,92,.85)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-of-type{border-top:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px 22px 0;font-size:17px;font-weight:600;color:var(--ink);transition:color var(--t),padding var(--t);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .arrow{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line-strong);
  display:grid;place-items:center;transition:transform var(--t),border-color var(--t),background var(--t);
}
.faq-item summary .arrow::before{content:"";width:7px;height:7px;border-right:2px solid var(--ink-2);border-bottom:2px solid var(--ink-2);transform:rotate(45deg) translate(-1px,-1px)}
.faq-item summary:hover{color:var(--primary)}
.faq-item[open] summary{color:var(--primary)}
.faq-item[open] summary .arrow{transform:rotate(180deg);border-color:rgba(53,214,187,.55);background:rgba(53,214,187,.12)}
.faq-body{padding:0 40px 24px 0;color:var(--ink-2);font-size:15.5px}
.faq-item[open] .faq-body{border-left:3px solid var(--primary);padding-left:18px;margin-left:2px}

/* ---------- CTA ---------- */
.cta-band{
  border-radius:var(--r-lg);border:1px solid rgba(53,214,187,.24);
  background:linear-gradient(120deg,rgba(14,58,64,.96),rgba(12,42,50,.94));
  padding:clamp(32px,5vw,56px);box-shadow:var(--shadow);
  display:flex;flex-wrap:wrap;gap:30px;align-items:center;justify-content:space-between;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,214,187,.28),transparent 68%);pointer-events:none;
}
.cta-band h2{margin-bottom:12px;max-width:520px}
.cta-band p{color:var(--ink-2);max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2}

/* ---------- Footer ---------- */
.site-footer{position:relative;margin-top:clamp(48px,7vw,90px);background:rgba(9,25,31,.92);border-top:1px solid var(--line);padding-top:8px}
.footer-stone{height:1px;background:linear-gradient(90deg,transparent,rgba(53,214,187,.5),rgba(217,168,92,.45),transparent)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;padding:clamp(40px,6vw,64px) 0 30px}
.footer-brand p{margin-top:16px;color:var(--ink-3);font-size:14.5px;max-width:330px}
.footer-col h4{font-size:15px;color:var(--ink);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{color:var(--ink-3);font-size:14.5px}
.footer-col a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:5px}
.footer-key{
  display:flex;flex-wrap:wrap;gap:12px 22px;padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.footer-key a{font-size:14px;color:var(--ink-3)}
.footer-key a:hover{color:var(--primary)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;padding:22px 0 34px;font-size:13.5px;color:var(--ink-3)}

.to-top{
  position:fixed;right:22px;bottom:26px;width:48px;height:48px;border-radius:50%;
  display:grid;place-items:center;z-index:50;
  background:rgba(255,255,255,.08);border:1px solid var(--line-strong);backdrop-filter:blur(12px);
  opacity:0;visibility:hidden;transform:translateY(10px);transition:all var(--t);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:rgba(53,214,187,.6);background:rgba(53,214,187,.14)}
.to-top::before{content:"";width:10px;height:10px;border-left:2px solid var(--ink);border-top:2px solid var(--ink);transform:rotate(45deg) translate(2px,2px)}

@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .read-grid{grid-template-columns:1fr}
  .level-grid{grid-template-columns:1fr}
}
@media (max-width:900px){
  .nav-search{display:none}
  .hamburger{display:block}
  .nav-actions .btn-sm{display:none}
  .drawer{display:block}
}
@media (min-width:901px){
  .drawer{display:none}
}
@media (max-width:768px){
  :root{--header-h:112px}
  body{font-size:16px}
  .container{padding:0 16px}
  .p-table{min-width:0}
  .table-scroll{overflow:visible}
  .p-table thead{display:none}
  .p-table,.p-table tbody,.p-table tr,.p-table th,.p-table td{display:block;width:100%}
  .p-table tbody tr{
    border:1px solid var(--line);border-radius:var(--r-md);margin:14px;
    background:rgba(255,255,255,.03);overflow:hidden;
  }
  .p-table tbody tr:last-child{border-bottom:1px solid var(--line)}
  .p-table th[scope="row"]{
    padding:16px 16px 14px;border-bottom:1px solid var(--line);white-space:normal;font-size:17px;
  }
  .p-table td{
    display:flex;gap:16px;padding:12px 16px;border-bottom:1px dashed rgba(255,255,255,.08);
    font-size:15px;
  }
  .p-table td:last-child{border-bottom:0}
  .p-table td::before{
    content:attr(data-label);flex:0 0 78px;color:var(--ink-3);font-size:13px;line-height:1.9;
  }
  .cta-band{padding:30px 22px}
  .faq-item summary{font-size:16px}
  .faq-body{padding-right:12px}
}
@media (max-width:560px){
  .brand-sub{display:none}
  .brand-name{font-size:16px}
  .btn{padding:12px 20px;font-size:15px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column}
  .to-top{right:16px;bottom:18px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --bg-deep:#0B2027;
  --bg:#0E2730;
  --bg-elev:#12313B;
  --paper:#F7F4EF;
  --paper-ink:#1B2A2F;
  --primary:#35D6BB;
  --primary-600:#21BCA3;
  --accent:#D9A85C;
  --accent-2:#7FA8B8;
  --ink:#E8F1F2;
  --ink-2:#B9CBD2;
  --ink-3:#8AA0A9;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.055);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --shadow:0 1px 2px rgba(0,0,0,.35), 0 18px 44px -22px rgba(0,0,0,.6);
  --shadow-hover:0 2px 4px rgba(0,0,0,.4), 0 26px 60px -24px rgba(0,0,0,.72);
  --glow:0 0 0 1px rgba(53,214,187,.28), 0 12px 34px -14px rgba(53,214,187,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:
    radial-gradient(1000px 460px at 78% -8%, rgba(53,214,187,.14), transparent 62%),
    radial-gradient(760px 420px at 6% 4%, rgba(127,168,184,.12), transparent 60%),
    var(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  min-height:100vh;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.tnum{font-variant-numeric:tabular-nums}
[id]{scroll-margin-top:112px}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,32,39,.88);
  backdrop-filter:blur(16px) saturate(130%);
  -webkit-backdrop-filter:blur(16px) saturate(130%);
  border-bottom:1px solid var(--line);
}
.topbar{display:flex;align-items:center;gap:20px;height:70px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(150deg,var(--primary),#1a9e8c 70%);
  color:#06231f;font-weight:800;font-size:15px;letter-spacing:.5px;
  box-shadow:var(--glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:700;color:var(--ink)}
.brand-sub{font-size:11px;color:var(--ink-3);letter-spacing:.14em;text-transform:uppercase}
.search{
  flex:1 1 auto;max-width:420px;display:flex;align-items:center;gap:10px;
  height:42px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);
  transition:border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.search svg{flex:0 0 auto;color:var(--ink-3)}
.search input{
  flex:1 1 auto;border:0;background:transparent;outline:none;
  font-size:13.5px;color:var(--ink);
}
.search input::placeholder{color:var(--ink-3)}
.search:focus-within{border-color:rgba(53,214,187,.55);box-shadow:var(--glow)}
.top-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-md);
  padding:11px 20px;font-size:14.5px;font-weight:600;cursor:pointer;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),
             background 220ms var(--ease),border-color 220ms var(--ease),color 220ms var(--ease);
}
.btn-primary{
  background:linear-gradient(140deg,var(--primary),var(--primary-600));
  color:#032622;box-shadow:var(--glow);border-color:rgba(53,214,187,.5);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(53,214,187,.42),0 18px 40px -14px rgba(53,214,187,.72)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:var(--glass);border-color:var(--line-strong);color:var(--ink);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:rgba(53,214,187,.55);background:rgba(255,255,255,.09);transform:translateY(-2px)}
.btn-sm{padding:9px 16px;font-size:13.5px;border-radius:12px}
.btn-block{width:100%}
.link-more{
  display:inline-flex;align-items:center;gap:6px;color:var(--primary);
  font-size:14px;font-weight:600;
}
.link-more svg{transition:transform 220ms var(--ease)}
.link-more:hover svg{transform:translateX(3px)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:var(--glass);border:1px solid var(--line-strong);cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:17px;height:1.6px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:17px;height:1.6px;background:var(--ink);
}
.nav-toggle span::before{top:-5.5px}
.nav-toggle span::after{top:5.5px}

/* 频道行 */
.channel-bar{border-top:1px solid var(--line);position:relative}
.channel-scroll{
  display:flex;align-items:center;gap:10px;
  overflow-x:auto;scroll-snap-type:x proximity;
  padding:11px 20px;max-width:1200px;margin:0 auto;
  scrollbar-width:none;
}
.channel-scroll::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;scroll-snap-align:start;
  padding:8px 16px;border-radius:var(--r-pill);
  font-size:13.5px;font-weight:600;color:var(--ink-2);
  background:var(--glass);border:1px solid var(--line);
  transition:all 220ms var(--ease);white-space:nowrap;
}
.chip:hover{color:var(--ink);border-color:rgba(53,214,187,.5);transform:translateY(-1px)}
.chip.active{
  color:#062a25;
  background:linear-gradient(140deg,var(--primary),var(--primary-600));
  border-color:rgba(53,214,187,.6);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.22),0 10px 26px -12px rgba(53,214,187,.6);
}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:70px 0 0;z-index:75;
  background:rgba(9,26,33,.98);
  backdrop-filter:blur(18px);
  transform:translateY(-8px);opacity:0;visibility:hidden;
  transition:opacity 220ms var(--ease),transform 220ms var(--ease),visibility 220ms;
  overflow-y:auto;padding:22px 20px 40px;
}
.drawer.open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer .search{max-width:none;margin-bottom:18px;height:46px}
.drawer-nav{display:flex;flex-direction:column;gap:10px;margin-bottom:22px}
.drawer-nav a{
  padding:13px 16px;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--line);
  font-size:15px;font-weight:600;color:var(--ink-2);
}
.drawer-nav a.active{color:#062a25;background:linear-gradient(140deg,var(--primary),var(--primary-600));border-color:transparent}

/* ============ 面包屑 / Hero ============ */
.crumbs{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-3);padding:26px 0 0;
}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{color:var(--ink-3);opacity:.6}
.crumbs .now{color:var(--ink-2)}

.hero{padding:26px 0 clamp(44px,6vw,72px)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:clamp(24px,4vw,54px);align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(217,168,92,.13);border:1px solid rgba(217,168,92,.34);
  color:var(--accent);font-size:12.5px;font-weight:700;letter-spacing:.04em;
  margin-bottom:18px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px rgba(217,168,92,.9)}
h1{font-size:clamp(28px,4vw,46px);line-height:1.26;font-weight:700;margin-bottom:18px}
h1 .hl{
  color:var(--primary);
  background:linear-gradient(transparent 66%, rgba(53,214,187,.22) 66%);
  padding:0 2px;
}
.hero-lead{font-size:17px;color:var(--ink-2);max-width:56ch;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.metrics{display:flex;flex-wrap:wrap;gap:clamp(18px,4vw,44px)}
.metric-num{font-size:24px;font-weight:800;color:var(--primary);line-height:1.2}
.metric-num.accent{color:var(--accent)}
.metric-label{font-size:13px;color:var(--ink-3)}

.hero-visual{position:relative}
.hero-visual .frame{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line-strong);box-shadow:var(--shadow);
  aspect-ratio:4/3;
}
.hero-visual .frame img{width:100%;height:100%;object-fit:cover}
.hero-visual .frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,32,39,.06),rgba(11,32,39,.68));
}
.glass-card{
  position:absolute;left:18px;right:18px;bottom:18px;
  padding:16px 18px;border-radius:var(--r-md);
  background:rgba(18,49,59,.76);
  border:1px solid rgba(255,255,255,.14);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:0 18px 40px -20px rgba(0,0,0,.8);
  overflow:hidden;
}
.glass-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.55),transparent);
}
.glass-card h3{font-size:14.5px;margin-bottom:6px}
.glass-card p{font-size:12.8px;color:var(--ink-2);line-height:1.7}

/* ============ 通用板块 ============ */
.section{padding:clamp(52px,7vw,96px) 0}
.section-head{max-width:760px;margin-bottom:clamp(26px,4vw,44px)}
.section-head .kicker{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.16em;
  color:var(--primary);text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{font-size:clamp(22px,2.8vw,32px);margin-bottom:12px}
.section-head p{color:var(--ink-2);font-size:16px}
.section-alt{background:linear-gradient(180deg,rgba(255,255,255,.028),rgba(255,255,255,0));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

.banner-strip{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  height:clamp(180px,26vw,300px);
  border:1px solid var(--line-strong);box-shadow:var(--shadow);
}
.banner-strip img{width:100%;height:100%;object-fit:cover}
.banner-strip .mask{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,32,39,.9),rgba(11,32,39,.42) 62%,rgba(11,32,39,.2));
  display:flex;flex-direction:column;justify-content:center;
  padding:clamp(20px,4vw,46px);
}
.banner-strip h2{font-size:clamp(20px,2.6vw,30px);max-width:22ch;margin-bottom:10px}
.banner-strip p{color:var(--ink-2);font-size:14.5px;max-width:46ch}

/* ============ 流程步骤条 ============ */
.steps{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  margin-bottom:clamp(30px,5vw,54px);
}
.step{
  position:relative;padding:24px 20px 22px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow);
  transition:transform 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:rgba(53,214,187,.5);box-shadow:var(--shadow-hover)}
.step .num{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  font-size:17px;font-weight:800;color:#062a25;
  background:linear-gradient(140deg,var(--primary),var(--primary-600));
  box-shadow:var(--glow);margin-bottom:14px;
}
.step:nth-child(2) .num{background:linear-gradient(140deg,#F0C07C,var(--accent));color:#2b1c04;box-shadow:0 0 0 1px rgba(217,168,92,.3),0 12px 30px -14px rgba(217,168,92,.6)}
.step h3{font-size:17.5px;margin-bottom:8px}
.step p{font-size:14px;color:var(--ink-2);line-height:1.78}
.step .tagline{
  display:inline-block;margin-top:14px;font-size:12.5px;font-weight:700;
  color:var(--accent-2);border-top:1px solid var(--line);padding-top:10px;width:100%;
}
.steps-connector{display:none}

/* 步骤详情 */
.step-detail-list{display:flex;flex-direction:column;gap:16px}
.step-detail{
  display:grid;grid-template-columns:64px minmax(0,1fr);gap:20px;
  align-items:start;
  padding:24px clamp(18px,3vw,30px);border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--line);
  transition:border-color 220ms var(--ease),transform 220ms var(--ease),background 220ms var(--ease);
}
.step-detail:hover{border-color:rgba(53,214,187,.42);transform:translateY(-3px);background:rgba(255,255,255,.075)}
.step-detail .idx{
  width:52px;height:52px;border-radius:16px;display:grid;place-items:center;
  font-size:19px;font-weight:800;color:var(--primary);
  background:rgba(53,214,187,.1);border:1px solid rgba(53,214,187,.34);
}
.step-detail h3{font-size:18px;margin-bottom:8px}
.step-detail p{font-size:14.6px;color:var(--ink-2);line-height:1.85}
.step-detail .tips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.mini-chip{
  padding:5px 12px;border-radius:var(--r-pill);font-size:12.5px;font-weight:600;
  background:rgba(127,168,184,.13);border:1px solid rgba(127,168,184,.3);color:#A9C6D2;
}
.mini-chip.warm{background:rgba(217,168,92,.13);border-color:rgba(217,168,92,.34);color:#E8C58C}
.mini-chip.mint{background:rgba(53,214,187,.12);border-color:rgba(53,214,187,.32);color:#88E5D4}

/* ============ 卡片网格 ============ */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.card{
  padding:24px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow);
  transition:transform 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);
  position:relative;overflow:hidden;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.4),transparent);
}
.card:hover{transform:translateY(-4px);border-color:rgba(53,214,187,.46);box-shadow:var(--shadow-hover)}
.card .ico{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  margin-bottom:14px;color:var(--primary);
  background:rgba(53,214,187,.1);border:1px solid rgba(53,214,187,.3);
}
.card .ico.warm{color:var(--accent);background:rgba(217,168,92,.1);border-color:rgba(217,168,92,.32)}
.card h3{font-size:17.5px;margin-bottom:9px}
.card p{font-size:14.4px;color:var(--ink-2);line-height:1.82}
.card .divider{height:1px;background:var(--line);margin:16px 0 14px}

.card-media{display:grid;grid-template-columns:150px minmax(0,1fr);gap:18px;align-items:center}
.card-media .thumb{
  border-radius:var(--r-md);overflow:hidden;aspect-ratio:4/3;border:1px solid var(--line);
}
.card-media .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.card-media:hover .thumb img{transform:scale(1.06)}

/* 对照说明 */
.compare-row{
  display:grid;grid-template-columns:180px minmax(0,1fr) 130px;gap:18px;align-items:center;
  padding:18px clamp(16px,2.4vw,24px);border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--line);
  transition:background 220ms var(--ease),border-color 220ms var(--ease);
}
.compare-row + .compare-row{margin-top:12px}
.compare-row:hover{background:rgba(255,255,255,.085);border-color:rgba(53,214,187,.4)}
.compare-row .name{font-size:15.5px;font-weight:700}
.compare-row .desc{font-size:14px;color:var(--ink-2)}
.compare-row .stat{text-align:right;font-size:14px;font-weight:700;color:var(--primary)}
.compare-row .stat.warm{color:var(--accent)}

/* 自查清单 */
.check-list{display:flex;flex-direction:column;gap:10px}
.check-item{
  display:grid;grid-template-columns:26px minmax(0,1fr) auto;gap:14px;align-items:center;
  padding:15px 18px;border-radius:var(--r-md);
  background:rgba(255,255,255,.035);border:1px solid var(--line);
  transition:background 220ms var(--ease),transform 220ms var(--ease);
}
.check-item:hover{background:rgba(255,255,255,.075);transform:translateX(3px)}
.check-item .tick{
  width:22px;height:22px;border-radius:8px;display:grid;place-items:center;
  background:rgba(53,214,187,.14);border:1px solid rgba(53,214,187,.36);color:var(--primary);
}
.check-item .txt{font-size:14.4px;color:var(--ink-2)}
.check-item .txt strong{color:var(--ink);font-weight:700}
.status{
  font-size:12px;font-weight:700;padding:4px 11px;border-radius:var(--r-pill);white-space:nowrap;
}
.status.ok{color:#8FE7D6;background:rgba(53,214,187,.13);border:1px solid rgba(53,214,187,.34)}
.status.warn{color:#EBC98F;background:rgba(217,168,92,.13);border:1px solid rgba(217,168,92,.34)}
.status.info{color:#A7C4D0;background:rgba(127,168,184,.13);border:1px solid rgba(127,168,184,.32)}

/* ============ CTA 面板 ============ */
.cta-panel{
  border-radius:calc(var(--r-lg) + 6px);
  padding:clamp(26px,4vw,52px);
  background:
    radial-gradient(620px 300px at 88% 0%, rgba(53,214,187,.2), transparent 64%),
    linear-gradient(150deg,#12313B,#0F2932 60%,#123843);
  border:1px solid rgba(53,214,187,.26);
  box-shadow:var(--shadow);
}
.cta-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);gap:clamp(24px,4vw,46px);align-items:start}
.cta-panel h2{font-size:clamp(21px,2.6vw,30px);margin-bottom:14px}
.cta-panel .lead{color:var(--ink-2);font-size:15.5px;margin-bottom:22px}
.cta-points{display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;gap:11px;align-items:flex-start;font-size:14.6px;color:var(--ink-2)}
.cta-points .tick{
  flex:0 0 auto;width:22px;height:22px;border-radius:8px;display:grid;place-items:center;
  margin-top:3px;background:rgba(53,214,187,.14);border:1px solid rgba(53,214,187,.4);color:var(--primary);
}
.form-card{
  padding:clamp(20px,3vw,28px);border-radius:var(--r-lg);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);
  backdrop-filter:blur(16px) saturate(120%);
}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-2);margin-bottom:7px}
.field input,.field select{
  width:100%;height:46px;padding:0 14px;border-radius:var(--r-md);
  background:rgba(11,32,39,.62);border:1px solid var(--line-strong);
  color:var(--ink);font-size:15px;outline:none;
  transition:border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.field input::placeholder{color:var(--ink-3)}
.field input:focus,.field select:focus{border-color:rgba(53,214,187,.6);box-shadow:var(--glow)}
.field input.err{border-color:rgba(228,102,102,.75)}
.field select option{background:#0E2730;color:var(--ink)}
.err-msg{display:none;font-size:12.5px;color:#F09A9A;margin-top:6px}
.err-msg.show{display:block}
.agree{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--ink-3);margin-bottom:18px}
.agree input{width:16px;height:16px;margin-top:4px;accent-color:var(--primary)}
.form-note{
  display:none;margin-top:14px;padding:11px 14px;border-radius:var(--r-md);
  font-size:13.5px;background:rgba(53,214,187,.13);
  border:1px solid rgba(53,214,187,.36);color:#9FEBDD;
}
.form-note.show{display:block}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:minmax(0,.72fr) minmax(0,1.28fr);gap:clamp(24px,4vw,52px);align-items:start}
.faq-aside{position:sticky;top:130px}
.faq-aside h2{font-size:clamp(21px,2.6vw,30px);margin-bottom:12px}
.faq-aside p{color:var(--ink-2);font-size:15px;margin-bottom:18px}
.faq-list{display:flex;flex-direction:column;gap:0}
details.faq{
  border-bottom:1px solid var(--line);
  padding:4px 0;
  transition:border-color 220ms var(--ease);
}
details.faq[open]{border-color:rgba(53,214,187,.42)}
details.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 4px;font-size:16.5px;font-weight:600;color:var(--ink);
  transition:color 220ms var(--ease);
}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary:hover{color:var(--primary)}
details.faq summary .arrow{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;color:var(--primary);
  background:rgba(53,214,187,.1);border:1px solid rgba(53,214,187,.3);
  transition:transform 260ms var(--ease);
}
details.faq[open] summary .arrow{transform:rotate(180deg)}
details.faq .answer{padding:0 4px 20px;color:var(--ink-2);font-size:14.8px;line-height:1.88;max-width:70ch}

/* ============ 页脚 ============ */
.site-footer{position:relative;margin-top:clamp(30px,5vw,60px);background:rgba(8,24,30,.72);border-top:1px solid var(--line)}
.footer-stone{
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,214,187,.5),rgba(217,168,92,.42),transparent);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:clamp(22px,3.4vw,44px);
  padding:clamp(36px,5vw,58px) 0 30px;
}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{font-size:14px;color:var(--ink-3);max-width:34ch;line-height:1.8}
.footer-col h4{font-size:14.5px;margin-bottom:14px;color:var(--ink)}
.footer-col li + li{margin-top:10px}
.footer-col a{font-size:13.8px;color:var(--ink-3);transition:color 220ms var(--ease)}
.footer-col a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px}
.footer-key{
  display:flex;flex-wrap:wrap;gap:10px;padding:20px 0;border-top:1px solid var(--line);
}
.footer-key a{
  font-size:12.8px;color:var(--ink-3);padding:6px 13px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:all 220ms var(--ease);
}
.footer-key a:hover{color:var(--primary);border-color:rgba(53,214,187,.45)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding:18px 0 30px;border-top:1px solid var(--line);
  font-size:12.8px;color:var(--ink-3);
}

/* 返回顶部 */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:70;
  width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;cursor:pointer;
  background:rgba(18,49,59,.82);border:1px solid var(--line-strong);
  color:var(--primary);backdrop-filter:blur(12px);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all 260ms var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:rgba(53,214,187,.6);box-shadow:var(--glow)}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .hero-visual{max-width:560px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-grid{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr}
  .faq-aside{position:static}
  .footer-grid{grid-template-columns:1fr 1fr}
  .search{max-width:280px}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 16px}
  .search{display:none}
  .top-actions .btn-primary{display:none}
  .nav-toggle{display:flex}
  .channel-scroll{padding:10px 16px;
    -webkit-mask-image:linear-gradient(90deg,transparent,#000 14px,#000 calc(100% - 14px),transparent);
    mask-image:linear-gradient(90deg,transparent,#000 14px,#000 calc(100% - 14px),transparent);
  }
  .steps{grid-template-columns:1fr}
  .step-detail{grid-template-columns:1fr;gap:14px}
  .grid-2,.grid-3{grid-template-columns:1fr}
  .card-media{grid-template-columns:1fr;gap:14px}
  .compare-row{grid-template-columns:1fr;gap:8px}
  .compare-row .stat{text-align:left}
  .check-item{grid-template-columns:24px minmax(0,1fr);row-gap:8px}
  .check-item .status{grid-column:2}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .banner-strip .mask{background:linear-gradient(180deg,rgba(11,32,39,.72),rgba(11,32,39,.92))}
}
@media (max-width:520px){
  h1{font-size:26px}
  .metrics{gap:20px}
  .metric-num{font-size:20px}
  .btn{padding:12px 18px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .cta-panel{padding:22px 18px}
  .card{padding:20px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important}
}

/* roulang page: category4 */
:root{
  --bg-deep:#0B2027;
  --bg:#0E2730;
  --bg-elev:#12313B;
  --paper:#F7F4EF;
  --paper-ink:#1B2A2F;
  --paper-ink-2:#4C5E66;
  --paper-line:#DED7CB;
  --primary:#35D6BB;
  --primary-600:#21BCA3;
  --accent:#D9A85C;
  --accent-2:#7FA8B8;
  --ink:#E8F1F2;
  --ink-2:#B9CBD2;
  --ink-3:#8AA0A9;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.055);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(0,0,0,.35),0 18px 44px -22px rgba(0,0,0,.6);
  --shadow-2:0 1px 2px rgba(0,0,0,.4),0 26px 60px -26px rgba(0,0,0,.72);
  --shadow-glow:0 0 0 1px rgba(53,214,187,.28),0 12px 34px -14px rgba(53,214,187,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:220ms;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:112px;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg-deep);
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:radial-gradient(900px 420px at 78% -6%,rgba(53,214,187,.16),transparent 68%),
             radial-gradient(700px 380px at 4% 8%,rgba(217,168,92,.09),transparent 70%);
  z-index:0;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1;}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(11,32,39,.86);backdrop-filter:blur(16px) saturate(130%);border-bottom:1px solid var(--line);}
.topbar-inner{display:flex;align-items:center;gap:22px;height:70px;}
.brand{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(53,214,187,.9),rgba(33,188,163,.55));
  color:#052220;font-weight:800;font-size:14px;letter-spacing:.5px;
  box-shadow:0 10px 24px -12px rgba(53,214,187,.7);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:17px;font-weight:700;color:var(--ink);}
.brand-sub{font-size:11px;color:var(--ink-3);letter-spacing:1.2px;text-transform:uppercase;}
.search{flex:1 1 auto;display:flex;align-items:center;gap:10px;height:44px;padding:0 6px 0 14px;border-radius:var(--r-pill);background:var(--glass);border:1px solid var(--line);transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);}
.search:focus-within{border-color:rgba(53,214,187,.6);box-shadow:0 0 0 3px rgba(53,214,187,.14);}
.search-icon{width:17px;height:17px;flex:0 0 auto;stroke:var(--ink-3);fill:none;stroke-width:2;}
.search-input{flex:1 1 auto;min-width:0;background:none;border:none;outline:none;font-size:15px;color:var(--ink);}
.search-input::placeholder{color:var(--ink-3);}
.search-btn{flex:0 0 auto;padding:7px 16px;border-radius:var(--r-pill);background:rgba(53,214,187,.16);color:var(--primary);font-size:14px;font-weight:600;transition:background var(--dur) var(--ease);}
.search-btn:hover{background:rgba(53,214,187,.28);}
.topbar-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-md);padding:12px 22px;font-size:15px;font-weight:600;border:1px solid transparent;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);}
.btn-primary{background:linear-gradient(135deg,#42E2C6,#1FB79F);color:#04211C;box-shadow:var(--shadow-glow);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(53,214,187,.42),0 20px 40px -16px rgba(53,214,187,.75);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:var(--glass);border-color:var(--line-strong);color:var(--ink);backdrop-filter:blur(12px);}
.btn-ghost:hover{border-color:rgba(53,214,187,.55);background:rgba(53,214,187,.10);transform:translateY(-2px);}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:var(--r-sm);}
.menu-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line-strong);background:var(--glass);place-items:center;}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;margin:3px auto;transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);}
.menu-toggle.open span:nth-child(1){transform:translateY(5px) rotate(45deg);}
.menu-toggle.open span:nth-child(2){opacity:0;}
.menu-toggle.open span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}

.channel-bar{border-top:1px solid var(--line);}
.channel-inner{padding-top:9px;padding-bottom:9px;}
.channel-scroll{display:flex;gap:8px;overflow-x:auto;scroll-snap-type:x proximity;scrollbar-width:none;-ms-overflow-style:none;padding:2px 0;}
.channel-scroll::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;scroll-snap-align:start;
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 17px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);
  color:var(--ink-2);font-size:14.5px;font-weight:500;white-space:nowrap;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),background var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.chip:hover{color:var(--ink);border-color:var(--line-strong);background:rgba(255,255,255,.09);transform:translateY(-1px);}
.chip.active{background:rgba(53,214,187,.16);border-color:rgba(53,214,187,.5);color:var(--primary);box-shadow:inset 0 0 18px rgba(53,214,187,.16);font-weight:600;}

/* ============ 移动抽屉 ============ */
.drawer{position:fixed;inset:0;z-index:90;opacity:0;visibility:hidden;background:rgba(5,18,23,.72);backdrop-filter:blur(6px);transition:opacity var(--dur) var(--ease),visibility var(--dur) var(--ease);}
.drawer.open{opacity:1;visibility:visible;}
.drawer-panel{position:absolute;top:0;right:0;height:100%;width:min(360px,88vw);background:var(--bg-elev);border-left:1px solid var(--line);padding:24px 20px 40px;overflow-y:auto;transform:translateX(100%);transition:transform var(--dur) var(--ease);}
.drawer.open .drawer-panel{transform:translateX(0);}
.drawer-title{font-size:13px;letter-spacing:1.6px;color:var(--ink-3);margin-bottom:14px;text-transform:uppercase;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin:18px 0 22px;}
.drawer-nav a{padding:12px 14px;border-radius:var(--r-md);color:var(--ink-2);border:1px solid transparent;transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);}
.drawer-nav a:hover{background:var(--glass);color:var(--ink);border-color:var(--line);}
.drawer-nav a.active{background:rgba(53,214,187,.14);color:var(--primary);border-color:rgba(53,214,187,.45);}
.drawer .search{margin-bottom:6px;}

/* ============ 页面首屏 ============ */
.section{padding:clamp(56px,8vw,104px) 0;}
.section-tight{padding:clamp(36px,5vw,64px) 0;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:1.4px;color:var(--accent);text-transform:uppercase;}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);display:block;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px;}
.section-head h2{font-size:clamp(22px,2.8vw,32px);}
.section-head p{color:var(--ink-2);font-size:15.5px;max-width:640px;margin-top:10px;}

.page-hero{padding-top:clamp(28px,4vw,46px);}
.hero-media{position:relative;height:clamp(180px,26vw,320px);border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,32,39,.22),rgba(11,32,39,.86)),radial-gradient(600px 220px at 20% 0%,rgba(53,214,187,.24),transparent 70%);}
.hero-media-tag{position:absolute;left:24px;bottom:22px;z-index:2;display:flex;gap:10px;flex-wrap:wrap;}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--r-pill);font-size:13px;font-weight:600;background:rgba(217,168,92,.18);color:var(--accent);border:1px solid rgba(217,168,92,.4);}
.badge-primary{background:rgba(53,214,187,.16);color:var(--primary);border-color:rgba(53,214,187,.42);}
.hero-body{padding-top:clamp(28px,4vw,44px);max-width:900px;}
.hero-body h1{font-size:clamp(28px,4vw,46px);line-height:1.26;}
.hero-lead{margin-top:18px;font-size:clamp(16px,1.6vw,18px);color:var(--ink-2);max-width:720px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px;}
.hero-stats{display:flex;gap:clamp(20px,4vw,52px);flex-wrap:wrap;margin-top:36px;padding-top:26px;border-top:1px solid var(--line);}
.hero-stat strong{display:block;font-size:clamp(22px,2.6vw,30px);color:var(--primary);font-variant-numeric:tabular-nums;font-weight:700;}
.hero-stat span{font-size:13.5px;color:var(--ink-3);}
.breadcrumb{display:flex;gap:10px;align-items:center;font-size:13.5px;color:var(--ink-3);margin-bottom:18px;}
.breadcrumb a{color:var(--ink-2);transition:color var(--dur) var(--ease);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb span.sep{color:var(--ink-3);opacity:.6;}

/* ============ 长文 + 侧栏答疑 ============ */
.longform-layout{display:grid;grid-template-columns:minmax(0,1fr) 372px;gap:32px;align-items:start;}
.longform{background:var(--paper);color:var(--paper-ink);border-radius:var(--r-lg);padding:clamp(24px,3.4vw,46px);box-shadow:var(--shadow-1);}
.longform-head{padding-bottom:24px;border-bottom:1px solid var(--paper-line);margin-bottom:30px;}
.longform-head h2{font-size:clamp(20px,2.4vw,27px);color:var(--paper-ink);}
.longform-head p{margin-top:12px;color:var(--paper-ink-2);font-size:15.5px;line-height:1.9;}
.longform-meta{display:flex;gap:16px;flex-wrap:wrap;margin-top:16px;font-size:13px;color:#6B7C83;}
.longform h2{font-size:clamp(19px,2.2vw,24px);margin:42px 0 14px;padding-left:14px;border-left:4px solid var(--primary-600);line-height:1.4;}
.longform h2:first-of-type{margin-top:0;}
.longform h3{font-size:18px;margin:26px 0 10px;color:#134048;}
.longform p{margin-bottom:1.15em;color:#33454B;line-height:1.9;}
.longform strong{color:#12333B;}
.longform ul,.longform ol{margin:0 0 1.3em;display:flex;flex-direction:column;gap:10px;}
.longform ul li{position:relative;padding-left:22px;color:#33454B;line-height:1.85;}
.longform ul li::before{content:"";position:absolute;left:4px;top:11px;width:7px;height:7px;border-radius:50%;background:var(--primary-600);}
.longform ol{counter-reset:lf;}
.longform ol li{position:relative;padding-left:34px;color:#33454B;line-height:1.85;counter-increment:lf;}
.longform ol li::before{content:counter(lf);position:absolute;left:0;top:2px;width:22px;height:22px;border-radius:7px;background:rgba(33,188,163,.16);color:#0E6A5C;font-size:12.5px;font-weight:700;display:grid;place-items:center;}
.longform blockquote{margin:26px 0;padding:16px 22px;background:#EFEAE1;border-left:3px solid var(--accent);border-radius:0 var(--r-sm) var(--r-sm) 0;color:#3B4B52;font-size:15.5px;}
.longform blockquote p{margin:0;color:#3B4B52;}

.faq-side{position:sticky;top:104px;display:flex;flex-direction:column;gap:16px;}
.faq-side-head{padding:22px 22px 20px;border-radius:var(--r-lg);background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(14px) saturate(120%);}
.faq-side-head h2{font-size:19px;}
.faq-side-head p{margin-top:8px;font-size:14px;color:var(--ink-3);line-height:1.75;}
.faq-list{display:flex;flex-direction:column;gap:10px;}
.faq-item{background:rgba(255,255,255,.045);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;font-size:15px;font-weight:600;color:var(--ink);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"";flex:0 0 auto;width:8px;height:8px;border-right:2px solid var(--primary);border-bottom:2px solid var(--primary);transform:rotate(45deg) translateY(-2px);transition:transform var(--dur) var(--ease);}
.faq-item[open]{border-color:rgba(53,214,187,.45);background:rgba(53,214,187,.075);}
.faq-item[open] summary::after{transform:rotate(-135deg) translateY(-2px);}
.faq-item[open] summary{box-shadow:inset 3px 0 0 var(--primary);}
.faq-answer{padding:0 16px 16px;font-size:14.3px;color:var(--ink-2);line-height:1.85;border-top:1px solid var(--line);margin-top:-1px;padding-top:14px;}

/* ============ 卡片 / 网格 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.card{position:relative;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;backdrop-filter:blur(14px) saturate(120%);transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease);overflow:hidden;}
.card::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);}
.card:hover{transform:translateY(-4px);border-color:rgba(53,214,187,.45);box-shadow:var(--shadow-2);background:rgba(255,255,255,.075);}
.card h3{font-size:18px;margin-bottom:10px;}
.card p{font-size:15px;color:var(--ink-2);line-height:1.8;}
.card-icon{width:44px;height:44px;border-radius:13px;display:grid;place-items:center;margin-bottom:18px;}
.card-icon svg{width:21px;height:21px;fill:none;stroke-width:1.9;}
.icon-primary{background:rgba(53,214,187,.14);border:1px solid rgba(53,214,187,.32);}
.icon-primary svg{stroke:var(--primary);}
.icon-accent{background:rgba(217,168,92,.14);border:1px solid rgba(217,168,92,.34);}
.icon-accent svg{stroke:var(--accent);}
.card-divider{height:1px;background:var(--line);margin:18px 0 14px;}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.card-foot span{font-size:13px;color:var(--ink-3);}
.link-arrow{display:inline-flex;align-items:center;gap:7px;font-size:14.5px;font-weight:600;color:var(--primary);transition:color var(--dur) var(--ease);}
.link-arrow svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2;transition:transform var(--dur) var(--ease);}
.link-arrow:hover{color:#5DEBD2;}
.link-arrow:hover svg{transform:translateX(3px);}
.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px;}
.tag{padding:5px 12px;border-radius:var(--r-pill);font-size:12.5px;background:rgba(127,168,184,.14);color:var(--accent-2);border:1px solid rgba(127,168,184,.28);}

/* ============ 流程步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.step{position:relative;padding:26px 22px;border-radius:var(--r-lg);background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(12px);transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease);}
.step:hover{transform:translateY(-4px);border-color:rgba(53,214,187,.45);}
.step-num{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;font-size:15px;font-weight:700;color:var(--primary);background:rgba(53,214,187,.12);border:1px solid rgba(53,214,187,.45);font-variant-numeric:tabular-nums;margin-bottom:16px;}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14.6px;color:var(--ink-2);line-height:1.8;}
.step::after{content:"";position:absolute;top:47px;right:-14px;width:14px;height:1px;background:rgba(53,214,187,.4);}
.step:last-child::after{display:none;}

/* ============ 场景对照 ============ */
.scene{display:grid;grid-template-columns:56px minmax(0,1fr);gap:18px;padding:24px;border-radius:var(--r-lg);background:var(--glass);border:1px solid var(--line);transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease);}
.scene:hover{border-color:rgba(217,168,92,.42);transform:translateY(-3px);}
.scene-no{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;font-weight:700;font-size:16px;color:var(--accent);background:rgba(217,168,92,.12);border:1px solid rgba(217,168,92,.34);font-variant-numeric:tabular-nums;}
.scene h3{font-size:17px;margin-bottom:8px;}
.scene p{font-size:14.8px;color:var(--ink-2);line-height:1.8;}
.scene ul{margin-top:12px;display:flex;flex-direction:column;gap:8px;}
.scene ul li{position:relative;padding-left:20px;font-size:14.4px;color:var(--ink-2);}
.scene ul li::before{content:"";position:absolute;left:2px;top:11px;width:6px;height:6px;border-radius:50%;background:var(--accent);}

/* ============ CTA 区 ============ */
.cta-panel{position:relative;border-radius:var(--r-lg);padding:clamp(28px,4vw,52px);background:linear-gradient(155deg,#12414C 0%,#0F3239 58%,#0D2A31 100%);border:1px solid rgba(53,214,187,.24);box-shadow:var(--shadow-2);overflow:hidden;}
.cta-panel::before{content:"";position:absolute;inset:0;background:radial-gradient(560px 260px at 88% 4%,rgba(53,214,187,.20),transparent 70%);pointer-events:none;}
.cta-grid{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 420px;gap:clamp(24px,4vw,54px);align-items:center;}
.cta-copy h2{font-size:clamp(22px,2.8vw,32px);}
.cta-copy p{margin-top:14px;color:var(--ink-2);font-size:15.5px;max-width:520px;}
.cta-list{margin-top:24px;display:flex;flex-direction:column;gap:12px;}
.cta-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2);}
.cta-list svg{flex:0 0 auto;width:18px;height:18px;margin-top:5px;stroke:var(--primary);fill:none;stroke-width:2.4;}
.form-card{background:rgba(255,255,255,.07);border:1px solid var(--line-strong);border-radius:var(--r-lg);padding:26px;backdrop-filter:blur(16px) saturate(125%);}
.form-card h3{font-size:18px;margin-bottom:6px;}
.form-card > p{font-size:13.8px;color:var(--ink-3);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.6px;color:var(--ink-2);margin-bottom:8px;font-weight:500;}
.field input,.field select{width:100%;height:46px;padding:0 14px;border-radius:var(--r-md);background:rgba(6,20,25,.5);border:1px solid var(--line-strong);color:var(--ink);font-size:16px;outline:none;transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);}
.field input::placeholder{color:var(--ink-3);}
.field input:focus,.field select:focus{border-color:rgba(53,214,187,.65);box-shadow:0 0 0 3px rgba(53,214,187,.16);}
.field select option{background:#0E2730;color:var(--ink);}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13.4px;color:var(--ink-3);margin-bottom:18px;}
.check input{width:17px;height:17px;margin-top:3px;accent-color:var(--primary-600);}
.form-card .btn{width:100%;}
.form-msg{margin-top:14px;font-size:13.6px;display:none;border-radius:var(--r-sm);padding:10px 14px;}
.form-msg.error{display:block;background:rgba(232,110,110,.14);color:#F0A8A8;border:1px solid rgba(232,110,110,.36);}
.form-msg.success{display:block;background:rgba(53,214,187,.14);color:#7CE9D5;border:1px solid rgba(53,214,187,.4);}

/* ============ 页脚 ============ */
.site-footer{position:relative;margin-top:clamp(40px,6vw,80px);background:rgba(8,24,30,.9);border-top:1px solid var(--line);}
.footer-stone{height:1px;background:repeating-linear-gradient(90deg,rgba(255,255,255,.16) 0 24px,transparent 24px 34px);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;padding:clamp(40px,5vw,64px) 0 34px;}
.footer-brand p{margin-top:16px;font-size:14.4px;color:var(--ink-3);line-height:1.85;max-width:330px;}
.footer-col h4{font-size:14.5px;color:var(--ink);margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14.2px;color:var(--ink-2);transition:color var(--dur) var(--ease);}
.footer-col a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}
.footer-key{display:flex;gap:12px;flex-wrap:wrap;padding:22px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.footer-key a{font-size:13.4px;color:var(--ink-2);padding:7px 14px;border-radius:var(--r-pill);background:var(--glass);border:1px solid var(--line);transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);}
.footer-key a:hover{color:var(--primary);border-color:rgba(53,214,187,.45);}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:22px 0 30px;font-size:13.2px;color:var(--ink-3);}

.to-top{position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.08);border:1px solid var(--line-strong);backdrop-filter:blur(12px);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur) var(--ease);z-index:70;}
.to-top.show{opacity:1;visibility:visible;transform:none;}
.to-top svg{width:18px;height:18px;stroke:var(--primary);fill:none;stroke-width:2.2;}
.to-top:hover{border-color:rgba(53,214,187,.55);background:rgba(53,214,187,.14);}

/* ============ 响应式 ============ */
@media (max-width:1100px){
  .longform-layout{grid-template-columns:minmax(0,1fr);}
  .faq-side{position:static;}
  .cta-grid{grid-template-columns:minmax(0,1fr);}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step::after{display:none;}
}
@media (max-width:1024px){
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .topbar-inner{height:64px;gap:12px;}
  .search{display:none;}
  .menu-toggle{display:grid;}
  .topbar-actions .btn-primary{display:none;}
  .grid-2,.grid-3{grid-template-columns:minmax(0,1fr);}
  .steps{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-brand{grid-column:1 / -1;}
  .hero-media-tag{left:16px;bottom:16px;}
  .hero-stats{gap:26px;}
  .scene{grid-template-columns:44px minmax(0,1fr);gap:14px;padding:20px;}
  .scene-no{width:44px;height:44px;border-radius:13px;font-size:15px;}
  .to-top{right:16px;bottom:18px;}
}
@media (max-width:520px){
  .section{padding:44px 0;}
  .hero-body h1{font-size:26px;}
  .card{padding:20px;}
  .footer-grid{grid-template-columns:1fr;}
  .longform{padding:22px 18px;border-radius:var(--r-md);}
  .faq-side-head{padding:18px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}