/* roulang page: index */
:root{
  --bg-0:#060B15;
  --bg-1:#0A1224;
  --bg-2:#0D172A;
  --brand:#2E6BFF;
  --cyan:#19D3C5;
  --amber:#FFB454;
  --text-0:#EAF1FF;
  --text-1:#A9B8D0;
  --text-2:#6F809B;
  --line:#1E355A;
  --glass-line:rgba(125,211,252,.18);
  --ok:#35D07F;
  --warn:#FFB454;
  --err:#FF6B6B;
  --r-card:20px;
  --r-btn:999px;
  --r-input:12px;
  --r-img:16px;
  --r-modal:24px;
  --sh:0 16px 40px rgba(0,0,0,.35);
  --sh-hi:0 22px 52px rgba(0,0,0,.5);
  --glow:0 0 24px rgba(46,107,255,.25);
  --glow-cyan:0 0 24px rgba(25,211,197,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:"MiSans","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:ui-monospace,SFMono-Regular,"JetBrains Mono",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--text-0);text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:var(--cyan)}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font-family:inherit;font-size:15px}
ul,ol{margin:0;padding:0}
li{list-style:none}
h1,h2,h3,h4{margin:0;color:var(--text-0);font-weight:800;letter-spacing:.015em;line-height:1.24}
p{margin:0}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
::selection{background:rgba(25,211,197,.32);color:#fff}

/* ---------- 背景装饰 ---------- */
.bg-deco{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.bg-deco::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(920px 540px at 10% -10%, rgba(46,107,255,.24), transparent 62%),
    radial-gradient(760px 460px at 90% 2%, rgba(25,211,197,.15), transparent 64%),
    radial-gradient(720px 420px at 50% 110%, rgba(46,107,255,.13), transparent 60%);
}
.bg-deco::after{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(30,53,90,.34) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30,53,90,.34) 1px, transparent 1px);
  background-size:68px 68px;
  -webkit-mask-image:radial-gradient(circle at 50% 26%, #000 0%, transparent 76%);
  mask-image:radial-gradient(circle at 50% 26%, #000 0%, transparent 76%);
  opacity:.55;
}
.page{position:relative;z-index:1}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:104px 0}
.section-tight{padding:72px 0}
.sec-head{max-width:760px;margin-bottom:48px}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);font-weight:600;margin-bottom:16px;
}
.sec-tag::before{content:"";width:22px;height:2px;background:linear-gradient(90deg,var(--cyan),transparent);border-radius:2px}
.sec-head h2{font-size:38px;margin-bottom:16px}
.sec-head p{color:var(--text-1);max-width:720px;font-size:16.5px}
.line-sep{height:1px;border:0;margin:0;background:linear-gradient(90deg,transparent,rgba(125,211,252,.22),transparent)}

/* ---------- 顶部 Dock 导航 ---------- */
.dock-wrap{position:sticky;top:16px;z-index:80;padding:0 20px}
.dock{
  max-width:1160px;margin:0 auto;
  display:flex;align-items:center;gap:20px;
  height:68px;padding:0 16px 0 22px;
  border-radius:var(--r-btn);
  background:rgba(9,16,32,.74);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:0 16px 40px rgba(0,0,0,.42);
}
.logo{display:flex;align-items:center;gap:11px;flex:none}
.logo-mark{
  width:34px;height:34px;border-radius:11px;flex:none;
  background:linear-gradient(140deg,var(--brand),var(--cyan));
  box-shadow:var(--glow);
  display:flex;align-items:center;justify-content:center;
}
.logo-mark svg{width:18px;height:18px}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-text b{color:var(--text-0);font-size:15.5px;font-weight:800;letter-spacing:.02em}
.logo-text span{color:var(--text-2);font-size:11.5px;letter-spacing:.16em}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-menu a{
  position:relative;display:inline-flex;align-items:center;gap:7px;
  padding:9px 15px;border-radius:var(--r-btn);
  font-size:14.5px;color:var(--text-1);
  transition:background .25s var(--ease),color .25s var(--ease);
}
.nav-menu a:hover{background:rgba(125,211,252,.09);color:var(--text-0)}
.nav-menu a.active{color:var(--text-0);background:rgba(46,107,255,.14)}
.nav-menu a.active::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 10px var(--cyan);
}
.dock-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.dock-search{position:relative;display:flex;align-items:center}
.dock-search input{
  width:0;opacity:0;padding:0;height:40px;
  border-radius:var(--r-btn);border:1px solid var(--glass-line);
  background:rgba(6,11,21,.7);color:var(--text-0);
  transition:width .32s var(--ease),opacity .25s var(--ease),padding .32s var(--ease);
}
.dock-search.open input{width:190px;opacity:1;padding:0 16px}
.icon-btn{
  width:40px;height:40px;border-radius:50%;flex:none;
  display:flex;align-items:center;justify-content:center;
  border:1px solid transparent;color:var(--text-1);
  transition:.25s var(--ease);
}
.icon-btn:hover{background:rgba(125,211,252,.1);color:var(--cyan);border-color:var(--glass-line)}
.icon-btn svg{width:18px;height:18px}
.menu-toggle{display:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease),filter .25s var(--ease);
  white-space:nowrap;
}
.btn svg{width:16px;height:16px;transition:transform .25s var(--ease)}
.btn-primary{
  background:linear-gradient(120deg,var(--brand),var(--cyan));
  color:#04121F;
  box-shadow:0 0 24px rgba(46,107,255,.32);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 34px rgba(46,107,255,.5);color:#04121F}
.btn-primary:active{transform:scale(.98)}
.btn-primary:hover svg{transform:translateX(3px)}
.btn-ghost{
  background:rgba(125,211,252,.06);
  border:1px solid var(--glass-line);
  color:var(--text-0);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:rgba(25,211,197,.55);background:rgba(125,211,252,.13);transform:translateY(-2px);color:var(--text-0)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none}

/* ---------- 标签 / 徽章 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-btn);
  font-size:12.5px;font-weight:600;letter-spacing:.04em;
  background:rgba(46,107,255,.13);color:#9EC0FF;
  border:1px solid rgba(46,107,255,.25);
}
.tag-cyan{background:rgba(25,211,197,.12);color:#7FE8DF;border-color:rgba(25,211,197,.28)}
.tag-amber{background:rgba(255,180,84,.12);color:#FFD79B;border-color:rgba(255,180,84,.28)}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:var(--r-btn);
  font-size:12.5px;color:var(--text-1);
  background:rgba(125,211,252,.07);
  border:1px solid var(--glass-line);
}
.badge .dot{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 10px var(--ok)}

/* ---------- Hero ---------- */
.hero{position:relative;padding:64px 0 92px;overflow:hidden}
.hero-bg{
  position:absolute;inset:0;z-index:-1;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  opacity:.5;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,21,.72) 0%,rgba(6,11,21,.9) 62%,var(--bg-0) 100%),
             linear-gradient(90deg,rgba(6,11,21,.9) 0%,rgba(6,11,21,.45) 60%,rgba(6,11,21,.85) 100%);
}
.hero-grid{display:grid;grid-template-columns:1.35fr .95fr;gap:48px;align-items:center}
.hero h1{font-size:56px;line-height:1.16;letter-spacing:.012em;margin:22px 0 20px}
.hero h1 em{font-style:normal;background:linear-gradient(100deg,var(--cyan),#7FB0FF);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:17.5px;color:var(--text-1);max-width:640px;margin-bottom:14px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 32px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-note{font-size:13px;color:var(--text-2);margin-top:20px}

.status-card{
  position:relative;
  border-radius:var(--r-card);
  padding:26px;
  background:rgba(13,23,42,.66);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--sh);
  overflow:hidden;
}
.status-card::before{
  content:"";position:absolute;top:-40%;right:-30%;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(25,211,197,.2),transparent 68%);
}
.status-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;position:relative}
.status-head strong{color:var(--text-0);font-size:16px;font-weight:700}
.status-list{display:flex;flex-direction:column;gap:14px;position:relative}
.status-item{display:flex;gap:14px;align-items:flex-start}
.status-num{
  width:30px;height:30px;flex:none;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;color:#9EC0FF;
  background:rgba(46,107,255,.15);border:1px solid rgba(46,107,255,.3);
  font-variant-numeric:tabular-nums;
}
.status-item strong{display:block;color:var(--text-0);font-size:14.5px;font-weight:600}
.status-item span{font-size:13px;color:var(--text-2);line-height:1.65}
.status-foot{
  margin-top:22px;padding-top:18px;border-top:1px solid rgba(125,211,252,.14);
  display:flex;align-items:center;justify-content:space-between;gap:12px;position:relative;
}
.status-foot .val{font-family:var(--mono);font-size:19px;color:var(--cyan);font-weight:700;font-variant-numeric:tabular-nums}
.status-foot .lbl{font-size:12.5px;color:var(--text-2)}

/* ---------- 痛点提问 ---------- */
.pain-grid{display:grid;grid-template-columns:340px 1fr;gap:56px;align-items:start}
.pain-left{position:sticky;top:112px}
.pain-left h2{font-size:34px;margin-bottom:16px}
.pain-left p{font-size:15.5px;color:var(--text-1);margin-bottom:22px}
.pain-list{border-top:1px solid var(--line)}
.pain-row{
  display:grid;grid-template-columns:56px 1fr 26px;gap:20px;align-items:center;
  padding:26px 18px 26px 4px;
  border-bottom:1px solid var(--line);
  position:relative;
  transition:background .28s var(--ease),padding .28s var(--ease);
}
.pain-row::before{
  content:"";position:absolute;left:0;top:18%;bottom:18%;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--cyan),rgba(25,211,197,0));
  opacity:0;transition:opacity .28s var(--ease);
}
.pain-row:hover{background:rgba(46,107,255,.06);padding-left:16px}
.pain-row:hover::before{opacity:1}
.pain-num{font-family:var(--mono);font-size:15px;color:var(--text-2);font-variant-numeric:tabular-nums}
.pain-row:hover .pain-num{color:var(--cyan)}
.pain-row strong{display:block;color:var(--text-0);font-size:18px;font-weight:700;margin-bottom:6px}
.pain-row p{font-size:14.5px;color:var(--text-2);line-height:1.7}
.pain-arrow{color:var(--text-2);transition:transform .28s var(--ease),color .28s var(--ease)}
.pain-row:hover .pain-arrow{transform:translateX(5px);color:var(--cyan)}

/* ---------- Bento 方案卡 ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.bcard{
  position:relative;
  border-radius:var(--r-card);
  padding:28px;
  background:var(--bg-1);
  border:1px solid var(--line);
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
  display:flex;flex-direction:column;
  overflow:hidden;
}
.bcard:hover{transform:translateY(-4px);border-color:rgba(125,211,252,.4);box-shadow:var(--sh-hi)}
.bcard-glass{
  background:linear-gradient(155deg,rgba(46,107,255,.16),rgba(13,23,42,.82) 55%);
  border-color:var(--glass-line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--glow);
}
.bcard-glass:hover{box-shadow:0 0 38px rgba(46,107,255,.32),var(--sh-hi)}
.b-7{grid-column:span 7}
.b-5{grid-column:span 5}
.b-4{grid-column:span 4}
.b-8{grid-column:span 8}
.b-3{grid-column:span 3}
.bcard .idx{
  font-family:var(--mono);font-size:13px;color:var(--cyan);
  letter-spacing:.12em;margin-bottom:18px;font-variant-numeric:tabular-nums;
}
.bcard h3{font-size:23px;margin-bottom:12px}
.bcard p{font-size:15px;color:var(--text-1);line-height:1.8;margin-bottom:18px}
.bcard ul.mini{margin-bottom:20px}
.bcard ul.mini li{
  position:relative;padding-left:18px;font-size:14.5px;color:var(--text-1);
  line-height:1.85;
}
.bcard ul.mini li::before{
  content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;
  background:var(--cyan);opacity:.8;
}
.bcard .tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.bcard .more{
  margin-top:auto;display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;font-weight:600;color:var(--cyan);
}
.bcard .more svg{width:15px;height:15px;transition:transform .28s var(--ease)}
.bcard:hover .more svg{transform:translateX(5px)}
.bcard .glow-ring{
  position:absolute;right:-60px;bottom:-70px;width:230px;height:230px;border-radius:50%;
  border:1px solid rgba(125,211,252,.16);
  box-shadow:inset 0 0 40px rgba(25,211,197,.08);
  pointer-events:none;
}

/* ---------- 数据带 ---------- */
.databand{
  position:relative;
  border-radius:var(--r-card);
  padding:44px 40px;
  background:linear-gradient(120deg,rgba(10,18,36,.95),rgba(13,23,42,.9));
  border:1px solid var(--glass-line);
  overflow:hidden;
}
.databand::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(30,53,90,.5) 1px,transparent 1px),linear-gradient(90deg,rgba(30,53,90,.5) 1px,transparent 1px);
  background-size:44px 44px;opacity:.35;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 18%,#000 82%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 18%,#000 82%,transparent);
}
.databand::after{
  content:"";position:absolute;top:0;left:8%;right:8%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(25,211,197,.7),transparent);
}
.data-grid{position:relative;display:grid;grid-template-columns:repeat(4,1fr)}
.data-cell{padding:6px 26px;position:relative;transition:background .28s var(--ease)}
.data-cell:not(:last-child)::after{
  content:"";position:absolute;right:0;top:12%;bottom:12%;width:1px;
  background:linear-gradient(180deg,transparent,rgba(125,211,252,.24),transparent);
}
.data-cell:hover{background:rgba(46,107,255,.07)}
.data-num{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:42px;font-weight:700;color:var(--text-0);letter-spacing:-.01em;
  display:flex;align-items:baseline;gap:5px;line-height:1.1;
}
.data-num small{font-size:16px;color:var(--cyan);font-weight:600}
.data-lbl{font-size:14px;color:var(--text-2);margin-top:10px}

/* ---------- CMS 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:start}
.news-main{
  border-radius:var(--r-card);overflow:hidden;
  background:var(--bg-1);border:1px solid var(--line);
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.news-main:hover{transform:translateY(-4px);border-color:rgba(125,211,252,.4);box-shadow:var(--sh-hi)}
.news-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#122243,#0A1224)}
.news-cover img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s var(--ease)}
.news-main:hover .news-cover img{transform:scale(1.04)}
.news-cover .tag{position:absolute;left:18px;top:18px}
.news-body{padding:26px}
.news-body h3{font-size:23px;margin-bottom:14px;line-height:1.4}
.news-body p{font-size:15px;color:var(--text-1);margin-bottom:18px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;flex-wrap:wrap;gap:16px;font-size:13px;color:var(--text-2)}
.news-side{display:flex;flex-direction:column;gap:12px}
.news-item{
  display:block;padding:18px 20px;border-radius:14px;
  background:var(--bg-1);border:1px solid var(--line);
  transition:transform .28s var(--ease),border-color .28s var(--ease),background .28s var(--ease);
}
.news-item:hover{transform:translateY(-3px);border-color:rgba(25,211,197,.45);background:var(--bg-2)}
.news-item strong{
  display:block;color:var(--text-0);font-size:15.5px;font-weight:600;line-height:1.6;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-item .news-meta{gap:12px}
.news-empty{
  padding:44px 24px;border-radius:var(--r-card);text-align:center;
  background:var(--bg-1);border:1px dashed var(--line);
}
.news-empty svg{width:34px;height:34px;color:var(--text-2);margin:0 auto 14px}
.news-empty p{font-size:15px;color:var(--text-2);margin-bottom:16px}

/* ---------- 评价 ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.quote{
  padding:28px;border-radius:var(--r-card);
  background:var(--bg-1);border:1px solid var(--line);
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.quote:hover{transform:translateY(-4px);border-color:rgba(125,211,252,.35)}
.quote .mark{font-family:var(--mono);font-size:30px;color:rgba(25,211,197,.55);line-height:1}
.quote p{font-size:15px;color:var(--text-1);line-height:1.9;margin:14px 0 20px}
.quote-by{display:flex;align-items:center;gap:12px;font-size:13.5px;color:var(--text-2)}
.quote-avatar{
  width:38px;height:38px;border-radius:50%;flex:none;
  background:linear-gradient(140deg,rgba(46,107,255,.5),rgba(25,211,197,.5));
  display:flex;align-items:center;justify-content:center;color:#04121F;font-weight:700;font-size:14px;
}
.quote-by b{display:block;color:var(--text-0);font-size:14px;font-weight:600}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  border-radius:16px;background:var(--bg-1);border:1px solid var(--line);
  padding:0 22px;transition:border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.faq-item summary{
  display:flex;align-items:center;gap:16px;
  padding:20px 0;list-style:none;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--text-0);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::marker{display:none;content:""}
.faq-mark{position:relative;width:18px;height:18px;flex:none;margin-left:auto}
.faq-mark::before,.faq-mark::after{
  content:"";position:absolute;background:var(--cyan);border-radius:2px;
  transition:transform .3s var(--ease),opacity .3s var(--ease);
}
.faq-mark::before{left:0;top:8px;width:18px;height:2px}
.faq-mark::after{left:8px;top:0;width:2px;height:18px}
.faq-item[open] .faq-mark::after{transform:rotate(90deg);opacity:0}
.faq-item[open]{border-color:rgba(25,211,197,.4);box-shadow:0 0 0 1px rgba(25,211,197,.1),0 0 26px rgba(25,211,197,.08)}
.faq-body{
  padding:0 0 22px 16px;margin-left:2px;
  border-left:2px solid rgba(25,211,197,.6);
  font-size:15.5px;color:var(--text-1);line-height:1.9;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  padding:64px 56px;
  background:linear-gradient(120deg,rgba(46,107,255,.2),rgba(13,23,42,.92) 55%,rgba(25,211,197,.14));
  border:1px solid var(--glass-line);
  display:grid;grid-template-columns:1.4fr .9fr;gap:40px;align-items:center;
}
.cta-band h2{font-size:34px;margin-bottom:16px}
.cta-band p{font-size:16px;color:var(--text-1);max-width:600px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.cta-side{
  border-radius:16px;padding:24px;
  background:rgba(6,11,21,.55);border:1px solid var(--glass-line);
  display:flex;flex-direction:column;gap:14px;
}
.cta-side .row{display:flex;align-items:center;gap:12px;font-size:14.5px;color:var(--text-1)}
.cta-side .row svg{width:17px;height:17px;color:var(--cyan);flex:none}

/* ---------- 页脚 ---------- */
.site-foot{
  position:relative;margin-top:60px;
  background:#04080F;
  padding:70px 0 30px;
}
.site-foot::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,107,255,.6),rgba(25,211,197,.6),transparent);
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.foot-brand .logo{margin-bottom:18px}
.foot-brand p{font-size:14px;color:var(--text-2);max-width:330px;line-height:1.9}
.foot-col h4{font-size:14px;color:var(--text-0);margin-bottom:18px;letter-spacing:.06em;font-weight:700}
.foot-col a{display:block;font-size:14px;color:var(--text-2);padding:5px 0;transition:color .25s var(--ease),transform .25s var(--ease)}
.foot-col a:hover{color:var(--cyan);transform:translateX(3px)}
.foot-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid rgba(30,53,90,.7);
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-2);
}
.foot-bottom .to-top{
  display:inline-flex;align-items:center;gap:8px;color:var(--text-1);
  border:1px solid var(--line);padding:8px 16px;border-radius:var(--r-btn);
  transition:.25s var(--ease);
}
.foot-bottom .to-top:hover{border-color:rgba(25,211,197,.5);color:var(--cyan);transform:translateY(-2px)}

/* ---------- 表单弹层 ---------- */
.modal{
  position:fixed;inset:0;z-index:200;
  display:flex;align-items:center;justify-content:center;
  padding:24px;
  visibility:hidden;opacity:0;
  transition:opacity .28s var(--ease),visibility .28s var(--ease);
}
.modal.open{visibility:visible;opacity:1}
.modal-mask{position:absolute;inset:0;background:rgba(3,7,14,.74);backdrop-filter:blur(6px)}
.modal-panel{
  position:relative;width:100%;max-width:548px;
  border-radius:var(--r-modal);
  background:linear-gradient(160deg,rgba(13,23,42,.98),rgba(10,18,36,.98));
  border:1px solid var(--glass-line);
  box-shadow:0 30px 80px rgba(0,0,0,.6);
  padding:32px;
  transform:translateY(16px) scale(.98);
  transition:transform .3s var(--ease);
  max-height:90vh;overflow-y:auto;
}
.modal.open .modal-panel{transform:translateY(0) scale(1)}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:8px}
.modal-head h3{font-size:23px}
.modal-head p{font-size:14px;color:var(--text-2);margin-top:8px}
.modal-close{width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--text-2);border:1px solid var(--line);flex:none;transition:.25s var(--ease)}
.modal-close:hover{color:var(--cyan);border-color:rgba(25,211,197,.5)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:span 2}
.field label{font-size:13.5px;color:var(--text-1);font-weight:600}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--r-input);
  background:#060D1B;border:1px solid var(--line);color:var(--text-0);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.field textarea{resize:vertical;min-height:92px;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#54657F}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:rgba(25,211,197,.7);box-shadow:0 0 0 3px rgba(25,211,197,.14);
}
.check-row{display:flex;gap:10px;align-items:flex-start;margin-top:18px}
.check-row input{width:17px;height:17px;margin-top:5px;accent-color:var(--cyan);flex:none}
.check-row label{font-size:13.5px;color:var(--text-1);line-height:1.7}
.form-privacy{font-size:12.5px;color:var(--text-2);line-height:1.75;margin-top:10px}
.form-msg{font-size:13.5px;margin-top:12px;display:none}
.form-msg.ok{display:block;color:var(--ok)}
.form-msg.err{display:block;color:var(--err)}
.skeleton{border-radius:14px;background:linear-gradient(100deg,#0E1A30 30%,#152845 50%,#0E1A30 70%);background-size:220% 100%;animation:sk 1.4s infinite linear}
@keyframes sk{0%{background-position:120% 0}100%{background-position:-20% 0}}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:1140px}
  .hero h1{font-size:50px}
}
@media (max-width:1023px){
  .section{padding:80px 0}
  .hero{padding:48px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:44px}
  .pain-grid{grid-template-columns:1fr;gap:32px}
  .pain-left{position:static}
  .b-7,.b-5,.b-8,.b-4{grid-column:span 6}
  .b-3{grid-column:span 12}
  .news-grid{grid-template-columns:1fr;gap:24px}
  .quote-grid{grid-template-columns:1fr;gap:18px}
  .cta-band{grid-template-columns:1fr;padding:44px 32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .data-grid{grid-template-columns:1fr 1fr}
  .data-cell:nth-child(2)::after{display:none}
  .data-cell{padding:20px 22px}
}
@media (max-width:860px){
  .dock{height:62px;padding:0 12px 0 16px;gap:12px}
  .nav-menu{
    position:absolute;top:72px;left:12px;right:12px;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:14px;border-radius:20px;
    background:rgba(9,16,32,.96);
    border:1px solid var(--glass-line);
    backdrop-filter:blur(18px);
    box-shadow:var(--sh);
    display:none;
  }
  .nav-menu.open{display:flex}
  .nav-menu a{padding:13px 16px;font-size:15px}
  .menu-toggle{display:flex}
  .dock-search.open input{width:140px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 20px}
  .section{padding:64px 0}
  .sec-head h2{font-size:29px}
  .hero h1{font-size:37px}
  .hero-sub{font-size:16px}
  .b-7,.b-5,.b-8,.b-4,.b-3{grid-column:span 12}
  .bcard{padding:24px}
  .data-num{font-size:34px}
  .cta-band{padding:36px 24px}
  .cta-band h2{font-size:27px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .faq-item summary{font-size:15.5px;gap:12px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .hero h1{font-size:32px}
  .site-foot{padding:52px 0 24px}
  .data-grid{grid-template-columns:1fr}
  .data-cell::after{display:none}
  .data-cell{padding:18px 4px}
  .form-grid{grid-template-columns:1fr}
  .field.full{grid-column:span 1}
  .modal{padding:0;align-items:flex-end}
  .modal-panel{
    max-width:100%;border-radius:var(--r-modal) var(--r-modal) 0 0;
    padding:26px 20px 34px;transform:translateY(100%);
    max-height:92vh;
  }
  .modal.open .modal-panel{transform:translateY(0)}
  .dock-search.open input{width:110px}
  .logo-text b{font-size:14px}
  .logo-text span{font-size:10.5px}
}

/* roulang page: article */
:root{
  --bg-0:#060B15;
  --bg-1:#0A1224;
  --bg-2:#0D172A;
  --brand:#2E6BFF;
  --cyan:#19D3C5;
  --amber:#FFB454;
  --text-0:#EAF1FF;
  --text-1:#A9B8D0;
  --text-2:#6F809B;
  --line:#1E355A;
  --glass-border:rgba(125,211,252,.18);
  --ok:#35D07F;
  --warn:#FFB454;
  --err:#FF6B6B;
  --r-card:20px;
  --r-img:16px;
  --r-input:12px;
  --r-modal:24px;
  --sh-1:0 16px 40px rgba(0,0,0,.35);
  --sh-glow:0 0 24px rgba(46,107,255,.25);
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:110px}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-0);
  font-family:"MiSans","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.015em;color:var(--text-0)}
p{margin:0}
ul,ol{margin:0}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
.mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.bg-deco{position:fixed;inset:0;pointer-events:none;z-index:0}
.bg-deco::before{
  content:"";position:absolute;top:-18%;left:50%;transform:translateX(-50%);
  width:1200px;height:1200px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,107,255,.20),rgba(46,107,255,0) 62%);
}
.bg-deco::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(30,53,90,.34) 1px,transparent 1px),linear-gradient(90deg,rgba(30,53,90,.34) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 12%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 50% 12%,#000 0%,transparent 72%);
  opacity:.5;
}
main,.site-head,.site-foot{position:relative;z-index:1}

/* ---------- header dock ---------- */
.site-head{position:sticky;top:0;z-index:90;padding:14px 0 0}
.dock{
  max-width:1180px;margin:0 auto;
  display:flex;align-items:center;gap:16px;
  padding:9px 12px 9px 16px;
  border-radius:999px;
  background:rgba(9,16,32,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border:1px solid var(--glass-border);
  box-shadow:var(--sh-1);
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--cyan));
  box-shadow:0 0 18px rgba(25,211,197,.28);
}
.logo-mark svg{width:18px;height:18px}
.logo-text{display:flex;flex-direction:column;line-height:1.12}
.logo-text b{font-size:15px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.logo-text span{font-size:10.5px;color:var(--text-2);letter-spacing:.08em}
.lg-short{display:none}
.nav-menu{display:flex;align-items:center;gap:2px;margin:0 auto}
.nav-menu a{
  position:relative;padding:9px 14px;border-radius:999px;
  font-size:14px;color:var(--text-1);transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-menu a:hover{background:rgba(46,107,255,.14);color:var(--text-0)}
.nav-menu a.active{color:var(--text-0);background:rgba(25,211,197,.12)}
.nav-menu a.active::after{
  content:"";position:absolute;left:50%;bottom:3px;transform:translateX(-50%);
  width:4px;height:4px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);
}
.dock-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}
.icon-btn{
  width:38px;height:38px;border-radius:999px;display:grid;place-items:center;
  background:rgba(255,255,255,.04);border:1px solid rgba(125,211,252,.16);
  color:var(--text-1);cursor:pointer;transition:.2s var(--ease);
}
.icon-btn:hover{border-color:var(--cyan);color:var(--text-0)}
.icon-btn svg{width:17px;height:17px}
.search-pop{
  display:flex;align-items:center;gap:6px;width:0;overflow:hidden;
  border-radius:999px;transition:width .28s var(--ease),opacity .2s;
  opacity:0;
}
.search-pop.open{width:190px;opacity:1}
.search-pop input{
  width:100%;background:rgba(255,255,255,.05);border:1px solid var(--line);
  border-radius:999px;padding:8px 14px;font-size:13.5px;color:var(--text-0);
}
.search-pop input::placeholder{color:var(--text-2)}
.burger{display:none;width:38px;height:38px;border-radius:999px;border:1px solid rgba(125,211,252,.18);background:rgba(255,255,255,.04);cursor:pointer;place-items:center}
.burger span{display:block;width:16px;height:2px;background:var(--text-0);border-radius:2px;margin:2.5px auto;transition:.2s}
.drawer{
  position:fixed;inset:0;z-index:120;background:rgba(4,8,16,.72);
  backdrop-filter:blur(6px);opacity:0;visibility:hidden;transition:.25s var(--ease);
}
.drawer.open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;left:12px;right:12px;top:12px;
  background:linear-gradient(180deg,rgba(10,18,36,.98),rgba(6,11,21,.98));
  border:1px solid var(--glass-border);border-radius:var(--r-modal);
  padding:18px;box-shadow:var(--sh-1);
  transform:translateY(-12px);transition:transform .28s var(--ease);
}
.drawer.open .drawer-panel{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer-head b{font-size:15px}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-nav a{
  padding:13px 14px;border-radius:14px;font-size:15px;color:var(--text-1);
  background:rgba(255,255,255,.03);border:1px solid transparent;transition:.2s;
}
.drawer-nav a:hover,.drawer-nav a.active{border-color:rgba(25,211,197,.4);color:var(--text-0)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;padding:12px 22px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s var(--ease),box-shadow .22s var(--ease),filter .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.btn svg{width:16px;height:16px}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--cyan));color:#04121F;box-shadow:var(--sh-glow)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 34px rgba(46,107,255,.45)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:rgba(125,211,252,.28);color:var(--text-0)}
.btn-ghost:hover{border-color:var(--cyan);background:rgba(25,211,197,.1)}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn-sm{padding:9px 16px;font-size:13.5px}
.btn-block{width:100%}
.link-cyan{color:var(--cyan);border-bottom:1px solid transparent;transition:.2s}
.link-cyan:hover{border-bottom-color:var(--cyan)}

/* ---------- article hero ---------- */
.art-hero{
  position:relative;margin-top:22px;padding:46px 0 40px;
  background-image:linear-gradient(180deg,rgba(6,11,21,.72),rgba(6,11,21,.96)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
  border-radius:0 0 28px 28px;
  overflow:hidden;
}
.art-hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(25,211,197,.18),transparent 65%);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-2);margin-bottom:20px}
.crumbs a{color:var(--text-2);transition:.2s}
.crumbs a:hover{color:var(--cyan)}
.crumbs em{font-style:normal;color:var(--cyan);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.art-hero h1{
  font-size:clamp(30px,4vw,46px);line-height:1.24;font-weight:800;letter-spacing:.012em;
  max-width:920px;
}
.art-kicker{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:16px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(25,211,197,.12);color:var(--cyan);border:1px solid rgba(25,211,197,.28);
}
.badge-amber{background:rgba(255,180,84,.12);color:var(--amber);border-color:rgba(255,180,84,.3)}
.badge-brand{background:rgba(46,107,255,.14);color:#9CC0FF;border-color:rgba(46,107,255,.34)}
.art-lead{margin-top:18px;max-width:820px;font-size:17px;color:var(--text-1);line-height:1.85}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  margin-top:26px;padding-top:20px;border-top:1px solid var(--line);
  font-size:13.5px;color:var(--text-2);
}
.meta-row span{display:inline-flex;align-items:center;gap:7px}
.meta-row svg{width:15px;height:15px;opacity:.8}
.meta-row b{color:var(--text-1);font-weight:600}

/* ---------- layout ---------- */
.art-main{padding:56px 0 80px}
.art-layout{display:grid;grid-template-columns:minmax(0,1fr) 268px;gap:48px;align-items:start}
.art-layout.no-toc{grid-template-columns:minmax(0,1fr)}
.art-layout.no-toc .article-inner{max-width:840px;margin:0 auto}
.article-inner{min-width:0}
.article-body{max-width:820px;font-size:17.5px;line-height:1.9;color:var(--text-1)}
.article-body>*:first-child{margin-top:0}
.article-body h2{
  font-size:clamp(24px,2.4vw,29px);line-height:1.32;margin:46px 0 16px;font-weight:700;
  padding-left:16px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--brand),var(--cyan));
  box-shadow:0 0 14px rgba(25,211,197,.5);
}
.article-body h3{font-size:clamp(20px,2vw,23px);line-height:1.4;margin:34px 0 12px;font-weight:700}
.article-body h4{font-size:18px;margin:26px 0 10px;color:var(--text-0)}
.article-body p{margin:0 0 18px}
.article-body strong{color:var(--text-0);font-weight:700}
.article-body a{color:var(--cyan);border-bottom:1px solid rgba(25,211,197,.42);transition:.2s}
.article-body a:hover{border-bottom-color:var(--cyan);background:rgba(25,211,197,.08)}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px;line-height:1.85}
.article-body li{margin-bottom:8px}
.article-body li::marker{color:var(--cyan)}
.article-body blockquote{
  margin:26px 0;padding:16px 22px;border-left:3px solid var(--cyan);
  background:linear-gradient(90deg,rgba(25,211,197,.09),rgba(25,211,197,0));
  border-radius:0 14px 14px 0;color:var(--text-1);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{margin:24px 0;border-radius:var(--r-img);border:1px solid var(--line)}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--text-2);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.article-body thead th{background:rgba(46,107,255,.16);color:var(--text-0);font-weight:700}
.article-body tbody tr:nth-child(odd){background:rgba(255,255,255,.018)}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.05)}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9em;
  background:rgba(46,107,255,.14);color:#BBD3FF;padding:2px 7px;border-radius:6px;
}
.article-body hr{border:0;height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);margin:38px 0}

/* ---------- toc ---------- */
.toc-aside{position:sticky;top:104px}
.toc-card{
  background:linear-gradient(180deg,var(--bg-1),var(--bg-2));
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 16px;box-shadow:var(--sh-1);
}
.toc-card h4{font-size:13px;letter-spacing:.14em;color:var(--text-2);font-weight:700;margin-bottom:12px}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:56vh;overflow:auto}
.toc-list a{
  display:block;padding:8px 12px;border-radius:10px;font-size:13.5px;color:var(--text-2);
  border-left:2px solid transparent;transition:.2s var(--ease);line-height:1.5;
}
.toc-list a.lvl3{padding-left:24px;font-size:13px}
.toc-list a:hover{color:var(--text-0);background:rgba(46,107,255,.1)}
.toc-list a.current{color:var(--cyan);border-left-color:var(--cyan);background:rgba(25,211,197,.09)}
.toc-toggle{display:none}

/* ---------- empty state ---------- */
.empty-panel{
  max-width:760px;padding:40px 30px;text-align:center;
  background:linear-gradient(180deg,var(--bg-1),var(--bg-2));
  border:1px dashed var(--line);border-radius:var(--r-card);
}
.empty-panel .empty-icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:18px;display:grid;place-items:center;
  background:rgba(255,180,84,.12);border:1px solid rgba(255,180,84,.3);
}
.empty-panel .empty-icon svg{width:24px;height:24px;stroke:var(--amber)}
.empty-panel h3{font-size:20px;margin-bottom:8px}
.empty-panel p{color:var(--text-2);font-size:14.5px;margin-bottom:20px}

/* ---------- related ---------- */
.section{padding:0 0 72px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}
.section-head h2{font-size:clamp(22px,2.4vw,30px)}
.section-head p{font-size:14.5px;color:var(--text-2);margin-top:8px}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:linear-gradient(180deg,var(--bg-1),var(--bg-2));
  border:1px solid var(--line);border-radius:var(--r-card);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(25,211,197,.45);box-shadow:0 18px 44px rgba(0,0,0,.45)}
.rel-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#0F1E3A,#123043)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s var(--ease)}
.rel-card:hover .rel-thumb img{transform:scale(1.05)}
.rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:16.5px;line-height:1.5;font-weight:700}
.rel-body p{font-size:13.5px;color:var(--text-2);line-height:1.75;flex:1}
.rel-foot{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--text-2);padding-top:6px;border-top:1px solid var(--line)}
.rel-foot span{color:var(--cyan)}

/* ---------- cta / form ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:26px;
  background-image:linear-gradient(120deg,rgba(6,11,21,.9),rgba(10,18,36,.86)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  border:1px solid var(--glass-border);
  padding:44px;
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;
}
.cta-band h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3}
.cta-band .cta-sub{margin-top:14px;color:var(--text-1);font-size:15.5px;line-height:1.85;max-width:460px}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:6px 13px;border-radius:999px;
  font-size:12.5px;color:var(--text-1);background:rgba(255,255,255,.045);border:1px solid var(--line);
}
.form-card{
  background:rgba(6,11,21,.72);border:1px solid var(--glass-border);
  border-radius:var(--r-card);padding:26px;backdrop-filter:blur(10px);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;color:var(--text-2)}
.field input,.field select,.field textarea{
  background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--r-input);
  padding:11px 14px;font-size:14.5px;color:var(--text-0);transition:.2s var(--ease);width:100%;
}
.field input::placeholder,.field textarea::placeholder{color:var(--text-2)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(25,211,197,.16);background:rgba(255,255,255,.06);
}
.check{display:flex;align-items:flex-start;gap:9px;font-size:13px;color:var(--text-2);line-height:1.65}
.check input{width:16px;height:16px;margin-top:3px;accent-color:#19D3C5;flex-shrink:0}
.privacy-note{margin-top:10px;font-size:12.5px;color:var(--text-2);line-height:1.7}
.form-tip{font-size:13px;margin-top:10px;display:none}
.form-tip.ok{display:block;color:var(--ok)}
.form-tip.err{display:block;color:var(--err)}

/* ---------- footer ---------- */
.site-foot{margin-top:20px;background:linear-gradient(180deg,#070D1A,#04080F);border-top:1px solid transparent;position:relative}
.site-foot::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,107,255,.6),rgba(25,211,197,.65),transparent);
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding:62px 0 40px}
.foot-brand p{margin-top:16px;font-size:13.5px;color:var(--text-2);line-height:1.85;max-width:340px}
.foot-col h4{font-size:13px;letter-spacing:.14em;color:var(--text-2);margin-bottom:16px;font-weight:700}
.foot-col a{display:block;font-size:14px;color:var(--text-1);padding:5px 0;transition:.2s}
.foot-col a:hover{color:var(--cyan);transform:translateX(3px)}
.foot-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding:20px 0 30px;border-top:1px solid var(--line);font-size:13px;color:var(--text-2);
}
.to-top{display:inline-flex;align-items:center;gap:7px;color:var(--text-1);transition:.2s}
.to-top:hover{color:var(--cyan)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{padding:0 24px}
  .art-layout{grid-template-columns:minmax(0,1fr) 240px;gap:36px}
}
@media (max-width:1023px){
  .nav-menu{display:none}
  .burger{display:grid}
  .dock{max-width:none;margin:0 24px}
  .art-layout{grid-template-columns:minmax(0,1fr)}
  .toc-aside{position:static;top:auto}
  .toc-card{padding:14px 16px}
  .toc-list{flex-direction:row;overflow-x:auto;gap:8px;max-height:none;padding-bottom:4px}
  .toc-list a{white-space:nowrap;border-left:0;border:1px solid var(--line);border-radius:999px;padding:7px 14px}
  .toc-list a.lvl3{padding-left:14px}
  .toc-list a.current{border-color:var(--cyan);background:rgba(25,211,197,.1)}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{grid-template-columns:1fr;gap:30px;padding:34px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .dock{margin:0 16px;padding:8px 10px 8px 12px;gap:8px}
  .search-pop.open{width:130px}
  .art-hero{padding:32px 0 30px;border-radius:0 0 22px 22px}
  .art-main{padding:40px 0 60px}
  .article-body{font-size:17px;line-height:1.88}
  .rel-grid{grid-template-columns:minmax(0,1fr)}
  .foot-grid{grid-template-columns:1fr;gap:26px;padding:46px 0 30px}
  .form-grid{grid-template-columns:1fr}
  .cta-band{padding:26px 20px;border-radius:20px}
  .meta-row{gap:8px 16px}
  .crumbs em{max-width:220px}
}
@media (max-width:519px){
  .container{padding:0 16px}
  .logo-text b{font-size:14px}
  .lg-full{display:none}
  .lg-short{display:inline}
  .art-hero h1{font-size:30px}
  .article-body{font-size:16.5px}
  .article-body table{font-size:13.5px}
  .section{padding-bottom:56px}
}

/* roulang page: category1 */
/* ===================== 设计变量 ===================== */
:root{
  --bg-0:#060B15;
  --bg-1:#0A1224;
  --bg-2:#0D172A;
  --panel:#0E1A30;
  --panel-2:#101E38;

  --brand:#2E6BFF;
  --brand-deep:#1B4BD8;
  --cyan:#19D3C5;
  --amber:#FFB454;

  --text-0:#EAF1FF;
  --text-1:#A9B8D0;
  --text-2:#6F809B;

  --line:#1E355A;
  --line-soft:rgba(125,211,252,.18);
  --glass-bg:rgba(9,16,32,.72);

  --ok:#35D07F;
  --warn:#FFB454;
  --err:#FF6B6B;

  --r-card:20px;
  --r-btn:999px;
  --r-input:12px;
  --r-img:16px;
  --r-modal:24px;

  --sh-1:0 16px 40px rgba(0,0,0,.35);
  --sh-glow:0 0 24px rgba(46,107,255,.25);
  --sh-glow-cyan:0 0 22px rgba(25,211,197,.22);

  --gap:24px;
  --container:1260px;
  --font-cn:"MiSans","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"SFMono-Regular",Consolas,"DejaVu Sans Mono","Roboto Mono",Menlo,monospace;
}

/* ===================== 基础 reset ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-0);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;transition:color .22s ease,border-color .22s ease,opacity .22s ease;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea,select{font-family:inherit;font-size:15px;color:inherit;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}

/* ===================== 背景装饰 ===================== */
.bg-layer{position:fixed;inset:0;z-index:-1;pointer-events:none;overflow:hidden;}
.bg-layer::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 560px at 12% -6%,rgba(46,107,255,.20),transparent 62%),
    radial-gradient(760px 520px at 92% 4%,rgba(25,211,197,.13),transparent 60%),
    radial-gradient(680px 480px at 50% 108%,rgba(46,107,255,.12),transparent 66%);
}
.bg-layer::after{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(125,211,252,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(125,211,252,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 22%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 22%,#000 0%,transparent 78%);
}

/* ===================== 容器 ===================== */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.narrow{max-width:980px;}

/* ===================== 顶部 Dock 导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:90;
  padding:14px 0 6px;
}
.dock{
  display:flex;align-items:center;gap:18px;
  max-width:1160px;margin:0 auto;
  padding:9px 12px 9px 16px;
  min-height:66px;
  border-radius:var(--r-btn);
  background:var(--glass-bg);
  border:1px solid var(--line-soft);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:0 18px 44px rgba(0,0,0,.42);
}
.logo{display:flex;align-items:center;gap:11px;flex:0 0 auto;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 auto;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--cyan),var(--brand));
  box-shadow:0 0 18px rgba(46,107,255,.35);
}
.logo-mark svg{width:20px;height:20px;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text b{font-size:15.5px;font-weight:800;letter-spacing:.01em;white-space:nowrap;}
.logo-text span{font-size:11.5px;color:var(--text-2);letter-spacing:.06em;}

.nav-menu{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1 1 auto;}
.nav-menu a{
  position:relative;
  padding:9px 15px;border-radius:var(--r-btn);
  font-size:14.5px;color:var(--text-1);font-weight:500;white-space:nowrap;
}
.nav-menu a:hover{background:rgba(125,211,252,.09);color:var(--text-0);}
.nav-menu a.active{color:var(--text-0);background:rgba(25,211,197,.10);}
.nav-menu a.active::after{
  content:"";position:absolute;left:50%;bottom:3px;transform:translateX(-50%);
  width:5px;height:5px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 10px var(--cyan);
}
.dock-right{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-1);
  background:rgba(13,23,42,.8);
  transition:.22s ease;
}
.icon-btn:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-1px);}
.icon-btn svg{width:17px;height:17px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  transition:transform .2s ease,box-shadow .25s ease,filter .25s ease,background .25s ease,border-color .25s ease;
  white-space:nowrap;
}
.btn-primary{
  color:#04121F;
  background:linear-gradient(120deg,var(--brand),var(--cyan));
  box-shadow:0 0 24px rgba(46,107,255,.32),0 10px 26px rgba(0,0,0,.35);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 34px rgba(25,211,197,.42),0 14px 30px rgba(0,0,0,.4);}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{
  color:var(--text-0);
  background:rgba(125,211,252,.06);
  border:1px solid var(--line-soft);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:var(--cyan);background:rgba(125,211,252,.13);transform:translateY(-2px);}
.btn-sm{padding:10px 19px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;}

.nav-toggle{display:none;width:42px;height:42px;border-radius:14px;border:1px solid var(--line);background:rgba(13,23,42,.85);place-items:center;}
.nav-toggle svg{width:19px;height:19px;stroke:var(--text-0);}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:120;
  background:rgba(4,8,16,.62);backdrop-filter:blur(6px);
  opacity:0;visibility:hidden;transition:.28s ease;
}
.drawer.open{opacity:1;visibility:visible;}
.drawer-panel{
  position:absolute;left:12px;right:12px;top:12px;
  padding:22px 20px 26px;border-radius:var(--r-modal);
  background:rgba(10,18,36,.94);
  border:1px solid var(--line-soft);
  backdrop-filter:blur(20px);
  transform:translateY(-14px);transition:.3s ease;
}
.drawer.open .drawer-panel{transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.drawer-head b{font-size:15px;}
.drawer-close{width:38px;height:38px;border-radius:12px;border:1px solid var(--line);display:grid;place-items:center;color:var(--text-1);}
.drawer-links{display:flex;flex-direction:column;gap:6px;margin-bottom:18px;}
.drawer-links a{padding:13px 14px;border-radius:14px;font-size:15.5px;color:var(--text-1);border:1px solid transparent;}
.drawer-links a.active{color:var(--text-0);background:rgba(25,211,197,.10);border-color:rgba(25,211,197,.3);}
.drawer-links a:hover{background:rgba(125,211,252,.09);color:var(--text-0);}

/* ===================== 通用板块 ===================== */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 15px;border-radius:var(--r-btn);
  font-size:13px;color:var(--cyan);letter-spacing:.04em;
  background:rgba(25,211,197,.08);
  border:1px solid rgba(25,211,197,.26);
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);}
h1{font-size:clamp(34px,4.6vw,58px);line-height:1.2;font-weight:800;letter-spacing:.015em;}
h2{font-size:clamp(26px,3vw,38px);line-height:1.26;font-weight:700;letter-spacing:.012em;}
h3{font-size:clamp(19px,2vw,25px);line-height:1.36;font-weight:700;}
.lead{font-size:17px;line-height:1.9;color:var(--text-1);max-width:46em;}
.muted{color:var(--text-1);}
.tiny{font-size:13px;color:var(--text-2);line-height:1.7;}
.sec-head{max-width:720px;margin-bottom:44px;}
.sec-head h2{margin:16px 0 14px;}

.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 13px;border-radius:var(--r-btn);
  font-size:12.5px;color:var(--text-1);
  background:rgba(125,211,252,.07);
  border:1px solid var(--line);
}
.tag-cyan{color:var(--cyan);border-color:rgba(25,211,197,.3);background:rgba(25,211,197,.08);}
.tag-amber{color:var(--amber);border-color:rgba(255,180,84,.3);background:rgba(255,180,84,.08);}
.tag-row{display:flex;flex-wrap:wrap;gap:9px;}

/* ===================== Hero ===================== */
.hero{padding:56px 0 8px;position:relative;}
.hero-grid{
  display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
  padding:44px 0 24px;
}
.hero h1{margin:22px 0 20px;}
.hero h1 .hl{
  background:linear-gradient(100deg,var(--cyan),var(--brand) 70%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 26px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.hero-visual::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-img);
  background:linear-gradient(180deg,rgba(6,11,21,.05),rgba(6,11,21,.72));
  pointer-events:none;
}
.glass-card{
  position:absolute;left:20px;right:20px;bottom:20px;z-index:2;
  padding:18px 20px;
  border-radius:18px;
  background:rgba(9,16,32,.78);
  border:1px solid var(--line-soft);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:0 0 26px rgba(25,211,197,.14);
}
.glass-card .gc-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px;}
.glass-card .gc-top b{font-size:14.5px;}
.status-pill{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;color:var(--ok);
  padding:5px 12px;border-radius:var(--r-btn);
  background:rgba(53,208,127,.10);border:1px solid rgba(53,208,127,.3);
}
.status-pill i{width:6px;height:6px;border-radius:50%;background:var(--ok);display:block;box-shadow:0 0 9px var(--ok);}
.step-chips{display:flex;flex-wrap:wrap;gap:8px;}
.step-chips span{
  font-size:12.5px;color:var(--text-1);
  padding:6px 12px;border-radius:var(--r-btn);
  background:rgba(125,211,252,.07);
  border:1px solid var(--line);
}
.hero-note{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px;}

/* ===================== 数据带 ===================== */
.band{
  margin-top:34px;
  padding:34px 30px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:
    linear-gradient(90deg,rgba(46,107,255,.14),rgba(25,211,197,.07) 55%,rgba(46,107,255,.05)),
    var(--bg-1);
  display:grid;grid-template-columns:repeat(4,1fr);
  position:relative;overflow:hidden;
  backdrop-filter:blur(10px);
}
.band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(90deg,rgba(125,211,252,.07) 1px,transparent 1px);
  background-size:56px 100%;opacity:.5;
}
.band-item{position:relative;padding:4px 24px;border-left:1px solid var(--line);}
.band-item:first-child{border-left:0;padding-left:0;}
.band-item:last-child{padding-right:0;}
.band-num{
  font-family:var(--font-num);
  font-size:clamp(30px,3.4vw,42px);font-weight:700;
  letter-spacing:-.01em;line-height:1.1;
  background:linear-gradient(120deg,#EAF1FF,var(--cyan));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.band-num small{font-size:14px;font-weight:600;margin-left:4px;color:var(--text-1);-webkit-text-fill-color:var(--text-1);}
.band-item:hover .band-num{filter:drop-shadow(0 0 12px rgba(25,211,197,.35));}
.band-label{display:block;margin-top:6px;font-size:13.5px;color:var(--text-1);}

/* ===================== 交错模块 ===================== */
.split{
  display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;
}
.split + .split{margin-top:80px;}
.split.rev .split-media{order:2;}
.split-media{position:relative;}
.split-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:transform .4s ease,border-color .3s ease;
}
.split-media:hover img{transform:translateY(-4px);border-color:var(--line-soft);}
.float-badge{
  position:absolute;left:-14px;top:22px;
  padding:10px 16px;border-radius:14px;
  background:var(--bg-2);border:1px solid var(--line-soft);
  font-size:12.5px;color:var(--cyan);letter-spacing:.04em;
  box-shadow:0 10px 26px rgba(0,0,0,.4);
}
.split-body h2{margin:16px 0 16px;}
.point-list{margin-top:22px;display:flex;flex-direction:column;gap:16px;}
.point{display:flex;gap:14px;align-items:flex-start;}
.point .num{
  flex:0 0 auto;width:30px;height:30px;border-radius:10px;
  display:grid;place-items:center;
  font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--cyan);
  background:rgba(25,211,197,.09);border:1px solid rgba(25,211,197,.26);
}
.point b{display:block;font-size:15.5px;font-weight:700;margin-bottom:3px;}
.point p{font-size:14.5px;color:var(--text-1);line-height:1.75;}

.meter{margin-top:26px;padding:18px 20px;border-radius:16px;background:var(--bg-1);border:1px solid var(--line);}
.meter-top{display:flex;justify-content:space-between;font-size:13px;color:var(--text-1);margin-bottom:10px;}
.meter-bar{height:7px;border-radius:99px;background:rgba(125,211,252,.12);overflow:hidden;}
.meter-bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--brand),var(--cyan));box-shadow:0 0 12px rgba(25,211,197,.4);}

/* ===================== 步骤流程 ===================== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:8px;}
.step-card{
  padding:26px 22px;border-radius:var(--r-card);
  background:var(--panel);border:1px solid var(--line);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
  position:relative;overflow:hidden;
}
.step-card::after{
  content:"";position:absolute;left:0;top:0;height:100%;width:2px;
  background:linear-gradient(180deg,var(--cyan),transparent);
  opacity:0;transition:opacity .3s ease;
}
.step-card:hover{transform:translateY(-4px);border-color:var(--line-soft);box-shadow:var(--sh-1);}
.step-card:hover::after{opacity:1;}
.step-idx{font-family:var(--font-num);font-size:13px;color:var(--cyan);letter-spacing:.1em;}
.step-card h3{margin:12px 0 10px;font-size:18px;}
.step-card p{font-size:14.5px;color:var(--text-1);line-height:1.78;}

/* ===================== 情况标签面板 ===================== */
.panel{
  border-radius:var(--r-card);
  background:var(--panel);border:1px solid var(--line);
  padding:28px;
}
.case-list{display:flex;flex-direction:column;gap:2px;margin-top:6px;}
.case-row{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:17px 6px 17px 16px;border-bottom:1px solid rgba(30,53,90,.7);
  transition:background .25s ease,padding-left .25s ease;
  position:relative;
}
.case-row:last-child{border-bottom:0;}
.case-row::before{
  content:"";position:absolute;left:0;top:16%;height:68%;width:2px;border-radius:2px;
  background:var(--cyan);opacity:0;transition:opacity .25s ease;
}
.case-row:hover{background:rgba(125,211,252,.05);padding-left:24px;}
.case-row:hover::before{opacity:1;}
.case-row b{font-size:15.5px;font-weight:600;}
.case-row span.d{display:block;font-size:13.5px;color:var(--text-2);margin-top:2px;}
.case-row .go{color:var(--text-2);flex:0 0 auto;transition:transform .25s ease,color .25s ease;}
.case-row:hover .go{color:var(--cyan);transform:translateX(4px);}
.case-row .go svg{width:17px;height:17px;}

/* ===================== FAQ ===================== */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line);border-radius:18px;
  background:var(--bg-1);
  margin-bottom:12px;overflow:hidden;
  transition:border-color .28s ease,box-shadow .28s ease;
  position:relative;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--cyan),rgba(25,211,197,0));
  opacity:0;transition:opacity .3s ease;
}
.faq-item.open{border-color:rgba(25,211,197,.32);box-shadow:0 0 22px rgba(25,211,197,.10);}
.faq-item.open::before{opacity:1;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;text-align:left;font-size:16.5px;font-weight:600;color:var(--text-0);
}
.faq-q:hover{color:var(--cyan);}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:9px;
  display:grid;place-items:center;border:1px solid var(--line);
  color:var(--text-1);font-size:17px;line-height:1;
  transition:.28s ease;
}
.faq-item.open .faq-icon{border-color:var(--cyan);color:var(--cyan);background:rgba(25,211,197,.1);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease;}
.faq-a p{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--text-1);}

/* ===================== CTA / 表单 ===================== */
.cta-block{
  border-radius:var(--r-card);
  border:1px solid var(--line-soft);
  background:
    radial-gradient(600px 320px at 12% 0%,rgba(46,107,255,.22),transparent 64%),
    radial-gradient(520px 300px at 92% 100%,rgba(25,211,197,.14),transparent 62%),
    var(--bg-1);
  padding:44px;
  display:grid;grid-template-columns:1fr 1fr;gap:46px;
  backdrop-filter:blur(10px);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13px;color:var(--text-1);letter-spacing:.02em;}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;
  border-radius:var(--r-input);
  background:rgba(6,11,21,.72);
  border:1px solid var(--line);
  color:var(--text-0);
  transition:border-color .22s ease,box-shadow .22s ease;
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--cyan);
  box-shadow:0 0 0 3px rgba(25,211,197,.16);
}
.field input::placeholder,.field textarea::placeholder{color:var(--text-2);}
.agree{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--text-1);line-height:1.7;}
.agree input{width:17px;height:17px;margin-top:4px;accent-color:var(--cyan);flex:0 0 auto;}
.privacy-note{margin-top:12px;font-size:12.5px;color:var(--text-2);line-height:1.7;}
.form-msg{margin-top:12px;font-size:13px;display:none;padding:9px 13px;border-radius:10px;}
.form-msg.ok{display:block;color:var(--ok);background:rgba(53,208,127,.1);border:1px solid rgba(53,208,127,.3);}
.form-msg.err{display:block;color:var(--err);background:rgba(255,107,107,.1);border:1px solid rgba(255,107,107,.3);}

.cta-points{display:flex;flex-direction:column;gap:18px;margin-top:22px;}
.cta-point{display:flex;gap:13px;align-items:flex-start;}
.cta-point .tick{
  width:24px;height:24px;border-radius:8px;flex:0 0 auto;
  display:grid;place-items:center;
  background:rgba(25,211,197,.1);border:1px solid rgba(25,211,197,.28);
  color:var(--cyan);
}
.cta-point .tick svg{width:13px;height:13px;}
.cta-point b{display:block;font-size:15px;font-weight:600;}
.cta-point span{font-size:13.5px;color:var(--text-2);}

/* ===================== 页脚 ===================== */
.site-foot{
  margin-top:96px;
  background:#04080F;
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,transparent,rgba(46,107,255,.6),rgba(25,211,197,.55),transparent) 1;
  padding:66px 0 26px;
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.foot-brand .logo{margin-bottom:16px;}
.foot-brand p{font-size:14px;color:var(--text-2);line-height:1.85;max-width:34em;}
.foot-col h4{font-size:14.5px;font-weight:700;margin-bottom:16px;color:var(--text-0);}
.foot-col a{display:block;font-size:14px;color:var(--text-2);padding:6px 0;}
.foot-col a:hover{color:var(--cyan);}
.foot-bottom{
  margin-top:46px;padding-top:22px;
  border-top:1px solid rgba(30,53,90,.7);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-2);
}
.to-top{display:inline-flex;align-items:center;gap:7px;color:var(--text-1);}
.to-top:hover{color:var(--cyan);}

/* ===================== 响应式 ===================== */
@media (max-width:1279px){
  .container{padding:0 24px;}
  .dock{max-width:1100px;}
  .hero-grid{gap:38px;}
}
@media (max-width:1023px){
  .nav-menu{display:none;}
  .nav-toggle{display:grid;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .split{grid-template-columns:1fr;gap:30px;}
  .split.rev .split-media{order:0;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .band{grid-template-columns:repeat(2,1fr);gap:22px 0;padding:26px 22px;}
  .band-item:nth-child(3){border-left:0;padding-left:0;}
  .cta-block{grid-template-columns:1fr;gap:34px;padding:34px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:76px 0;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .container{padding:0 20px;}
  .dock{padding:8px 10px;gap:10px;min-height:60px;}
  .logo-text span{display:none;}
  .logo-text b{font-size:14px;}
  .dock-right .btn{display:none;}
  .hero{padding:34px 0 4px;}
  .hero-cta .btn{width:100%;}
  .split + .split{margin-top:56px;}
  .steps{grid-template-columns:1fr;}
  .float-badge{left:10px;top:12px;}
  .section{padding:60px 0;}
  .sec-head{margin-bottom:32px;}
  .form-grid{grid-template-columns:1fr;}
  .cta-block{padding:26px 20px;}
  .foot-grid{grid-template-columns:1fr;gap:26px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
  .glass-card{left:12px;right:12px;bottom:12px;padding:15px 16px;}
}
@media (max-width:479px){
  .container{padding:0 16px;}
  .band{grid-template-columns:1fr;padding:22px 18px;}
  .band-item{border-left:0;padding:10px 0;border-top:1px solid var(--line);}
  .band-item:first-child{border-top:0;padding-top:0;}
  .panel{padding:20px 16px;}
  .case-row{padding-left:12px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --bg-0:#060B15;
  --bg-1:#0A1224;
  --bg-2:#0D172A;
  --brand:#2E6BFF;
  --cyan:#19D3C5;
  --amber:#FFB454;
  --text-0:#EAF1FF;
  --text-1:#A9B8D0;
  --text-2:#6F809B;
  --line:#1E355A;
  --glass-line:rgba(125,211,252,.18);
  --ok:#35D07F;
  --warn:#FFB454;
  --err:#FF6B6B;
  --r-card:20px;
  --r-img:16px;
  --r-input:12px;
  --r-pill:999px;
  --sh-card:0 16px 40px rgba(0,0,0,.35);
  --sh-glow:0 0 24px rgba(46,107,255,.25);
  --gap:24px;
  --space-block:112px;
  --mono:"JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-0);
  font-family:"MiSans","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(760px 460px at 12% -6%,rgba(46,107,255,.20),transparent 68%),
    radial-gradient(680px 420px at 92% 4%,rgba(25,211,197,.14),transparent 70%),
    linear-gradient(180deg,var(--bg-1),var(--bg-0) 42%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  opacity:.35;
  background-image:
    linear-gradient(rgba(30,53,90,.35) 1px,transparent 1px),
    linear-gradient(90deg,rgba(30,53,90,.35) 1px,transparent 1px);
  background-size:72px 72px;
  mask-image:radial-gradient(1200px 620px at 50% 0,#000 12%,transparent 78%);
  -webkit-mask-image:radial-gradient(1200px 620px at 50% 0,#000 12%,transparent 78%);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:none}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:800;letter-spacing:.015em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.container{width:min(1240px,100% - 48px);margin-inline:auto;position:relative;z-index:1}
.section{padding-block:var(--space-block)}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--cyan),transparent)}
.sec-title{font-size:clamp(28px,3.4vw,40px)}
.sec-desc{color:var(--text-1);margin-top:16px;font-size:16px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:var(--r-pill);
  font-weight:700;font-size:15px;letter-spacing:.01em;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,border-color .2s ease,background-color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(120deg,var(--brand),var(--cyan));
  color:#04121F;
  box-shadow:0 0 24px rgba(46,107,255,.25);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 10px 30px rgba(25,211,197,.32)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{
  background:rgba(125,211,252,.06);
  border-color:var(--glass-line);
  color:var(--text-0);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:var(--cyan);background:rgba(25,211,197,.10);transform:translateY(-2px)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{padding:10px 20px;font-size:14px}
.link-more{
  display:inline-flex;align-items:center;gap:7px;
  color:var(--text-0);font-weight:600;font-size:15px;
}
.link-more::after{content:"→";transition:transform .2s ease;color:var(--cyan)}
.link-more:hover{color:var(--cyan);text-decoration:underline;text-underline-offset:5px;text-decoration-color:var(--cyan)}
.link-more:hover::after{transform:translateX(4px)}

/* ---------- 导航 Dock ---------- */
.site-head{position:sticky;top:0;z-index:80;padding-top:14px}
.dock{
  width:min(1180px,100% - 32px);
  margin-inline:auto;
  min-height:70px;
  display:flex;align-items:center;gap:16px;
  padding:10px 14px 10px 18px;
  border-radius:var(--r-pill);
  background:rgba(9,16,32,.72);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:0 16px 40px rgba(0,0,0,.35);
}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--cyan),var(--brand));
  box-shadow:0 0 18px rgba(25,211,197,.3);
  flex-shrink:0;
}
.logo-mark svg{width:20px;height:20px}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:16px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.logo-text span{font-size:11px;color:var(--text-2);letter-spacing:.14em}
.logo-text .lg-mini{display:none}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-menu a{
  position:relative;
  padding:9px 16px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:500;color:var(--text-1);
  white-space:nowrap;
}
.nav-menu a:hover{background:rgba(125,211,252,.09);color:var(--text-0)}
.nav-menu a.active{color:var(--text-0);background:rgba(25,211,197,.10)}
.nav-menu a.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:5px;height:5px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 10px var(--cyan);
}
.dock-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.dock-search{
  display:flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--r-pill);
  background:rgba(6,11,21,.6);
  border:1px solid var(--line);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.dock-search:focus-within{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(25,211,197,.14)}
.dock-search svg{width:15px;height:15px;stroke:var(--text-2);flex-shrink:0}
.dock-search input{
  width:112px;background:none;border:none;outline:none;
  font-size:13.5px;color:var(--text-0);
}
.dock-search input::placeholder{color:var(--text-2)}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:14px;
  border:1px solid var(--glass-line);background:rgba(125,211,252,.06);
  place-items:center;
}
.menu-toggle span{display:block;width:17px;height:2px;background:var(--text-0);border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:17px;height:2px;background:var(--text-0);border-radius:2px;
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.drawer{
  display:none;
  width:min(1180px,100% - 32px);
  margin:10px auto 0;
  padding:16px;
  border-radius:24px;
  background:rgba(9,16,32,.94);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(18px);
  box-shadow:var(--sh-card);
}
.drawer.open{display:block}
.drawer a{
  display:block;padding:13px 16px;border-radius:14px;
  color:var(--text-1);font-weight:600;font-size:15px;
}
.drawer a:hover{background:rgba(125,211,252,.08);color:var(--text-0)}
.drawer a.active{color:var(--cyan);background:rgba(25,211,197,.10)}
.drawer .btn{margin-top:12px;width:100%}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;align-items:center;gap:9px;flex-wrap:wrap;
  font-size:13.5px;color:var(--text-2);
  padding-top:34px;
}
.crumbs a:hover{color:var(--cyan)}
.crumbs .sep{opacity:.6}
.crumbs .now{color:var(--cyan)}

/* ---------- 页头 Hero ---------- */
.page-hero{
  position:relative;
  padding:38px 0 78px;
}
.hero-bg{
  position:absolute;inset:-90px 0 auto 0;height:620px;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.30;
  mask-image:linear-gradient(180deg,#000 8%,transparent 92%);
  -webkit-mask-image:linear-gradient(180deg,#000 8%,transparent 92%);
  pointer-events:none;z-index:0;
}
.hero-grid{
  display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center;
  padding-top:44px;
}
.hero-copy h1{font-size:clamp(34px,4.4vw,54px);line-height:1.2}
.hero-copy h1 em{
  font-style:normal;
  background:linear-gradient(110deg,var(--cyan),var(--brand));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{margin-top:22px;color:var(--text-1);font-size:17.5px;max-width:46ch}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;color:var(--text-1);
  background:rgba(125,211,252,.07);
  border:1px solid var(--line);
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.tag:hover{border-color:var(--cyan);color:var(--text-0);transform:translateY(-2px)}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}

.hero-panel{
  position:relative;
  border-radius:24px;
  background:linear-gradient(160deg,rgba(13,23,42,.92),rgba(6,11,21,.88));
  border:1px solid var(--glass-line);
  box-shadow:var(--sh-card),0 0 34px rgba(46,107,255,.14);
  overflow:hidden;
}
.hero-panel::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(420px 200px at 84% -14%,rgba(25,211,197,.22),transparent 70%);
  pointer-events:none;
}
.panel-img{position:relative;aspect-ratio:16/9;overflow:hidden;margin:14px 14px 0;border-radius:var(--r-img)}
.panel-img img{width:100%;height:100%;object-fit:cover;opacity:.92}
.panel-img::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,21,.06),rgba(6,11,21,.78));
}
.panel-body{padding:22px 24px 26px;position:relative}
.panel-body h3{font-size:19px;margin-bottom:8px}
.panel-body p{color:var(--text-1);font-size:14.5px}
.panel-status{
  display:flex;align-items:center;gap:9px;margin-top:18px;
  padding:12px 15px;border-radius:14px;
  background:rgba(25,211,197,.09);
  border:1px solid rgba(25,211,197,.25);
  font-size:13.5px;color:var(--text-0);font-weight:600;
}
.pulse{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 12px var(--ok);flex-shrink:0}
.panel-steps{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:16px}
.panel-steps span{
  font-size:12.5px;color:var(--text-1);
  padding:9px 11px;border-radius:10px;
  background:rgba(6,11,21,.55);border:1px solid var(--line);
}

/* ---------- 数据带 ---------- */
.metrics{
  margin-top:16px;
  border-radius:24px;
  background:linear-gradient(90deg,rgba(13,23,42,.86),rgba(10,18,36,.62));
  border:1px solid var(--line);
  padding:34px 30px;
  display:grid;grid-template-columns:repeat(4,1fr);
  position:relative;overflow:hidden;
}
.metrics::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(520px 160px at 20% 0,rgba(46,107,255,.16),transparent 70%);
  pointer-events:none;
}
.metric{padding:0 26px;position:relative}
.metric + .metric::before{
  content:"";position:absolute;left:0;top:8%;height:84%;width:1px;
  background:linear-gradient(180deg,transparent,rgba(125,211,252,.28),transparent);
}
.metric b{
  display:block;font-family:var(--mono);
  font-size:clamp(28px,3.2vw,40px);font-weight:700;line-height:1.1;
  color:var(--text-0);font-variant-numeric:tabular-nums;
}
.metric b i{font-style:normal;font-size:15px;color:var(--cyan);margin-left:5px;font-family:inherit}
.metric span{display:block;color:var(--text-2);font-size:13.5px;margin-top:9px}
.metric:hover b{text-shadow:0 0 22px rgba(25,211,197,.45);transition:text-shadow .3s ease}

/* ---------- 文档布局：左目录 + 右长文 ---------- */
.doc-wrap{display:grid;grid-template-columns:264px minmax(0,1fr);gap:52px;align-items:start}
.toc{
  position:sticky;top:104px;
  padding:22px 20px;
  border-radius:var(--r-card);
  background:rgba(10,18,36,.72);
  border:1px solid var(--line);
  box-shadow:var(--sh-card);
}
.toc h4{font-size:13px;letter-spacing:.14em;color:var(--text-2);text-transform:uppercase;font-weight:700}
.toc ul{margin-top:16px;display:flex;flex-direction:column;gap:2px}
.toc a{
  display:block;padding:10px 12px;border-radius:12px;
  font-size:14px;color:var(--text-1);border-left:2px solid transparent;
}
.toc a:hover{background:rgba(125,211,252,.07);color:var(--text-0);border-left-color:var(--cyan)}
.toc a.on{color:var(--text-0);border-left-color:var(--cyan);background:rgba(25,211,197,.08)}
.toc-note{
  margin-top:20px;padding-top:18px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--text-2);line-height:1.75;
}

.doc-main{min-width:0}
.doc-block{padding-bottom:46px;margin-bottom:46px;position:relative}
.doc-block::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(125,211,252,.30),rgba(125,211,252,.02) 70%,transparent);
}
.doc-block:last-child::after{display:none}
.doc-block h2{font-size:clamp(24px,2.6vw,31px);margin-bottom:18px}
.doc-block h3{font-size:clamp(19px,2vw,23px);margin:26px 0 12px;color:var(--text-0)}
.doc-block p{color:var(--text-1);margin-bottom:16px;max-width:48ch}
.doc-block p.wide{max-width:none}
.doc-list{margin:18px 0 22px;display:flex;flex-direction:column;gap:12px}
.doc-list li{
  position:relative;padding:14px 18px 14px 44px;
  border-radius:14px;
  background:rgba(13,23,42,.62);
  border:1px solid var(--line);
  color:var(--text-1);font-size:15.5px;
  transition:border-color .2s ease,transform .2s ease,background-color .2s ease;
}
.doc-list li::before{
  content:"";position:absolute;left:18px;top:22px;
  width:8px;height:8px;border-radius:2px;
  background:linear-gradient(135deg,var(--cyan),var(--brand));
  transform:rotate(45deg);
}
.doc-list li:hover{border-color:var(--glass-line);background:rgba(13,23,42,.9);transform:translateX(3px)}
.doc-list li b{color:var(--text-0);font-weight:700}
.doc-list.ol{counter-reset:step}
.doc-list.ol li{padding-left:56px}
.doc-list.ol li::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  width:auto;height:auto;background:none;transform:none;
  left:20px;top:15px;
  font-family:var(--mono);font-size:13px;font-weight:700;color:var(--cyan);
}

.quote{
  margin:24px 0;
  padding:18px 22px;
  border-left:3px solid var(--cyan);
  border-radius:0 14px 14px 0;
  background:linear-gradient(90deg,rgba(25,211,197,.09),rgba(25,211,197,.01));
  color:var(--text-0);font-size:15.5px;
}
.quote cite{display:block;margin-top:10px;font-style:normal;font-size:13px;color:var(--text-2)}

.table-wrap{
  margin:22px 0;
  border-radius:var(--r-img);
  border:1px solid var(--line);
  overflow:hidden;
  overflow-x:auto;
}
table.tb{min-width:520px;font-size:14.5px}
table.tb thead th{
  background:rgba(13,23,42,.95);
  color:var(--text-0);font-weight:700;text-align:left;
  padding:15px 18px;font-size:14px;letter-spacing:.02em;
  border-bottom:1px solid var(--line);
}
table.tb td{
  padding:15px 18px;color:var(--text-1);
  border-bottom:1px solid rgba(30,53,90,.6);
  vertical-align:top;
}
table.tb tbody tr:nth-child(odd){background:rgba(10,18,36,.55)}
table.tb tbody tr:nth-child(even){background:rgba(13,23,42,.9)}
table.tb tbody tr:hover{background:rgba(25,211,197,.07)}
table.tb tbody tr:last-child td{border-bottom:none}
table.tb td strong{color:var(--text-0)}
.chip{
  display:inline-block;padding:4px 11px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:700;
  background:rgba(46,107,255,.16);color:#9EC0FF;border:1px solid rgba(46,107,255,.3);
}
.chip.ok{background:rgba(53,208,127,.14);color:#8FE8BB;border-color:rgba(53,208,127,.3)}
.chip.warn{background:rgba(255,180,84,.14);color:#FFD39A;border-color:rgba(255,180,84,.3)}

.inline-figure{
  margin:26px 0;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  position:relative;
}
.inline-figure img{width:100%;aspect-ratio:16/8;object-fit:cover;opacity:.9}
.inline-figure figcaption{
  padding:12px 18px;font-size:13px;color:var(--text-2);
  background:rgba(10,18,36,.9);
}

.data-strip{
  display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:24px 0 6px;
}
.data-strip div{
  padding:16px 18px;border-radius:14px;
  background:rgba(10,18,36,.72);border:1px solid var(--line);
}
.data-strip b{
  display:block;font-family:var(--mono);font-size:22px;color:var(--cyan);
  font-variant-numeric:tabular-nums;
}
.data-strip span{display:block;font-size:13px;color:var(--text-2);margin-top:5px}

/* ---------- 清单 ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:8px}
.check-item{
  display:flex;gap:13px;align-items:flex-start;
  padding:16px 18px;border-radius:14px;
  background:rgba(13,23,42,.6);
  border:1px solid var(--line);
  transition:border-color .2s ease,transform .2s ease;
}
.check-item:hover{border-color:var(--glass-line);transform:translateY(-3px)}
.check-item svg{width:18px;height:18px;stroke:var(--cyan);flex-shrink:0;margin-top:5px}
.check-item b{display:block;font-size:15px;color:var(--text-0);margin-bottom:4px}
.check-item span{font-size:13.5px;color:var(--text-1)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
  border-radius:16px;
  background:rgba(10,18,36,.68);
  border:1px solid var(--line);
  overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item[open]{
  border-color:rgba(25,211,197,.4);
  box-shadow:0 0 26px rgba(25,211,197,.10);
}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:19px 22px;
  font-size:16.5px;font-weight:700;color:var(--text-0);
  position:relative;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:var(--cyan);box-shadow:0 0 14px var(--cyan);
  opacity:0;transition:opacity .25s ease;
}
.faq-item[open] summary::before{opacity:1}
.faq-ico{position:relative;width:16px;height:16px;flex-shrink:0}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;background:var(--cyan);border-radius:2px;
  transition:transform .25s ease,opacity .25s ease;
}
.faq-ico::before{left:0;top:7px;width:16px;height:2px}
.faq-ico::after{left:7px;top:0;width:2px;height:16px}
.faq-item[open] .faq-ico::after{transform:rotate(90deg);opacity:0}
.faq-body{padding:0 22px 22px;color:var(--text-1);font-size:15px;line-height:1.85}
.faq-body p{max-width:66ch}

/* ---------- CTA / 表单 ---------- */
.cta-band{
  position:relative;
  border-radius:28px;
  padding:52px 46px;
  background:linear-gradient(140deg,rgba(13,23,42,.96),rgba(6,11,21,.9));
  border:1px solid var(--glass-line);
  box-shadow:var(--sh-card);
  overflow:hidden;
  display:grid;grid-template-columns:1fr 1.05fr;gap:52px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(520px 260px at 8% 0,rgba(46,107,255,.22),transparent 70%),
    radial-gradient(420px 240px at 96% 100%,rgba(25,211,197,.16),transparent 72%);
}
.cta-copy{position:relative;z-index:1}
.cta-copy h2{font-size:clamp(26px,3vw,36px);margin-bottom:16px}
.cta-copy p{color:var(--text-1);font-size:16px;max-width:40ch}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;gap:11px;align-items:flex-start;color:var(--text-1);font-size:14.5px}
.cta-points li svg{width:17px;height:17px;stroke:var(--cyan);flex-shrink:0;margin-top:5px}

.form-card{
  position:relative;z-index:1;
  padding:28px 26px;
  border-radius:var(--r-card);
  background:rgba(6,11,21,.72);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;color:var(--text-1);margin-bottom:8px;font-weight:600}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;
  border-radius:var(--r-input);
  background:rgba(10,18,36,.9);
  border:1px solid var(--line);
  color:var(--text-0);font-size:15px;
  outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:92px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--text-2)}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--cyan);box-shadow:0 0 0 3px rgba(25,211,197,.16);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-1) 50%),linear-gradient(135deg,var(--text-1) 50%,transparent 50%);background-position:calc(100% - 20px) 22px,calc(100% - 14px) 22px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.privacy{display:flex;align-items:flex-start;gap:10px;margin:6px 0 16px}
.privacy input{width:17px;height:17px;margin-top:4px;accent-color:var(--cyan);flex-shrink:0}
.privacy label{font-size:13px;color:var(--text-1);line-height:1.7}
.privacy a{color:var(--cyan);text-decoration:underline;text-underline-offset:4px}
.form-card .btn{width:100%}
.form-note{font-size:12.5px;color:var(--text-2);margin-top:12px;line-height:1.7}
.form-msg{display:none;margin-top:14px;padding:11px 14px;border-radius:12px;font-size:13.5px}
.form-msg.ok{display:block;background:rgba(53,208,127,.12);border:1px solid rgba(53,208,127,.35);color:#8FE8BB}
.form-msg.err{display:block;background:rgba(255,107,107,.12);border:1px solid rgba(255,107,107,.35);color:#FFB0B0}

/* ---------- 页脚 ---------- */
.site-foot{
  margin-top:var(--space-block);
  padding-top:64px;
  background:linear-gradient(180deg,rgba(6,11,21,.4),rgba(4,8,16,.96));
  border-top:1px solid transparent;
  position:relative;
  z-index:1;
}
.site-foot::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(25,211,197,.6),rgba(46,107,255,.6),transparent);
}
.foot-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;
  padding-bottom:52px;
}
.foot-brand .logo{margin-bottom:18px}
.foot-brand p{color:var(--text-2);font-size:14px;max-width:42ch;line-height:1.85}
.foot-col h4{font-size:14px;margin-bottom:16px;color:var(--text-0);letter-spacing:.04em}
.foot-col a{
  display:block;padding:7px 0;font-size:14px;color:var(--text-2);
}
.foot-col a:hover{color:var(--cyan)}
.foot-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  padding:24px 0 34px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--text-2);
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--text-1);font-size:13px;
}
.to-top:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--space-block:96px}
}
@media (max-width:1023px){
  :root{--space-block:78px}
  .container{width:min(1240px,100% - 48px)}
  .nav-menu{display:none}
  .dock-search{display:none}
  .menu-toggle{display:grid}
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .hero-panel{max-width:600px}
  .metrics{grid-template-columns:repeat(2,1fr);gap:26px 0}
  .metric:nth-child(3)::before{display:none}
  .doc-wrap{grid-template-columns:1fr;gap:26px}
  .toc{
    position:static;
    padding:16px 16px 18px;
    border-radius:18px;
  }
  .toc h4{padding-left:4px}
  .toc ul{flex-direction:row;overflow-x:auto;gap:8px;margin-top:12px;padding-bottom:4px;scrollbar-width:thin}
  .toc li{flex:0 0 auto}
  .toc a{
    white-space:nowrap;border-left:none;
    background:rgba(125,211,252,.06);
    border:1px solid var(--line);
    padding:8px 14px;border-radius:var(--r-pill);
    font-size:13.5px;
  }
  .toc a.on{border-color:rgba(25,211,197,.45)}
  .toc a:hover{border-left-color:var(--line)}
  .toc-note{display:none}
  .cta-band{grid-template-columns:1fr;gap:34px;padding:40px 32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--space-block:64px}
  body{font-size:16px}
  .container{width:min(1240px,100% - 40px)}
  .site-head{padding-top:10px}
  .dock{min-height:62px;padding:9px 12px 9px 14px;gap:10px}
  .logo-text b{font-size:14px}
  .logo-text .lg-full{display:none}
  .logo-text .lg-mini{display:block;font-size:15px}
  .logo-text span{font-size:10px;letter-spacing:.1em}
  .logo-mark{width:34px;height:34px;border-radius:11px}
  .dock .btn-sm{display:none}
  .page-hero{padding:6px 0 54px}
  .hero-bg{height:420px;opacity:.24}
  .hero-grid{padding-top:30px}
  .hero-copy h1{font-size:clamp(30px,8.4vw,38px)}
  .hero-lead{font-size:16px}
  .hero-actions .btn{flex:1 1 100%}
  .panel-steps{grid-template-columns:1fr}
  .metrics{padding:26px 20px;grid-template-columns:1fr;gap:0}
  .metric{padding:18px 0}
  .metric + .metric::before{left:0;top:0;width:100%;height:1px;background:linear-gradient(90deg,rgba(125,211,252,.24),transparent)}
  .metric:nth-child(3)::before{display:block}
  .check-grid{grid-template-columns:1fr}
  .data-strip{grid-template-columns:1fr}
  .cta-band{padding:32px 22px;border-radius:22px}
  .field-row{grid-template-columns:1fr}
  .footer, .foot-grid{grid-template-columns:1fr;gap:26px}
  .foot-grid{padding-bottom:36px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .doc-block{padding-bottom:34px;margin-bottom:34px}
}
@media (max-width:479px){
  .container{width:min(1240px,100% - 32px)}
  .drawer{width:min(1180px,100% - 32px)}
  .doc-list li{padding:13px 15px 13px 40px}
  .doc-list.ol li{padding-left:48px}
  .faq-item summary{padding:16px 16px;font-size:15.5px}
  .faq-body{padding:0 16px 18px}
}