/* ============================================================
   询盘云 · 独立站交付标准
   Design tokens
   ============================================================ */
:root{
  --bg:#0c0c10;
  --bg-2:#121218;
  --panel:#16161d;
  --panel-2:#1c1c24;
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.16);
  --ink:#f2f2f5;
  --ink-2:#b9b9c6;
  --muted:#85858f;
  --purple:#7c3aed;
  --purple-deep:#5b21b6;
  --purple-soft:rgba(124,58,237,.14);
  --orange:#ff5a1f;
  --orange-soft:rgba(255,90,31,.12);
  --ok:#3ddc97;
  --r:16px;
  --r-lg:24px;
  --max:1180px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--font);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
::selection{background:rgba(124,58,237,.45);color:#fff}

/* ---------- layout ---------- */
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
.section{padding:104px 0;position:relative}
.section--tight{padding:72px 0}
.section--panel{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.divider{height:1px;background:var(--line);margin:0}

/* ---------- type ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:11px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--muted);margin-bottom:22px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--purple)}
.eyebrow--orange::before{background:var(--orange)}
.h1{font-size:clamp(38px,6vw,68px);font-weight:600;letter-spacing:-.03em}
.h2{font-size:clamp(28px,3.6vw,44px);font-weight:600;letter-spacing:-.025em}
.h3{font-size:clamp(20px,2vw,25px);font-weight:600}
.lead{font-size:clamp(16px,1.6vw,19px);color:var(--ink-2);line-height:1.85;max-width:64ch}
.small{font-size:13.5px;color:var(--muted);line-height:1.7}
.accent{color:var(--purple)}
.accent-o{color:var(--orange)}
.grad{
  background:linear-gradient(96deg,#a78bfa 0%,#7c3aed 42%,#ff5a1f 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.mono{font-family:var(--mono);font-size:12px;letter-spacing:.08em;color:var(--muted)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(12,12,16,.82);backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px}
.brand{display:flex;align-items:center;gap:11px;font-weight:600;font-size:15.5px;letter-spacing:-.01em}
.brand-mark{
  width:30px;height:30px;border-radius:9px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--purple) 0%,var(--purple-deep) 60%,#2b1055 100%);
  display:grid;place-items:center;box-shadow:0 6px 18px -8px rgba(124,58,237,.9);
}
.brand-mark svg{width:16px;height:16px}
.brand small{display:block;font-size:10.5px;font-weight:400;color:var(--muted);letter-spacing:.14em;font-family:var(--mono);margin-top:2px}
.nav{display:flex;align-items:center;gap:30px}
.nav a{font-size:14px;color:var(--ink-2);transition:color .18s;position:relative}
.nav a:hover{color:#fff}
.nav a.is-active{color:#fff}
.nav a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-8px;height:1.5px;
  background:linear-gradient(90deg,var(--purple),var(--orange));
}
.header-cta{display:flex;align-items:center;gap:14px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:44px;padding:0 20px;border-radius:11px;font-size:14px;font-weight:500;
  transition:transform .16s ease,box-shadow .16s ease,background .16s ease,border-color .16s;
  white-space:nowrap;
}
.btn--primary{background:linear-gradient(120deg,var(--purple) 0%,var(--purple-deep) 100%);color:#fff;box-shadow:0 10px 26px -12px rgba(124,58,237,.9)}
.btn--primary:hover{transform:translateY(-1.5px);box-shadow:0 16px 32px -14px rgba(124,58,237,1)}
.btn--orange{background:var(--orange);color:#150800;font-weight:600}
.btn--orange:hover{transform:translateY(-1.5px);box-shadow:0 14px 28px -14px rgba(255,90,31,.95)}
.btn--ghost{border:1px solid var(--line-2);color:var(--ink);background:rgba(255,255,255,.02)}
.btn--ghost:hover{border-color:rgba(255,255,255,.34);background:rgba(255,255,255,.05)}
.btn--sm{height:38px;padding:0 15px;font-size:13px;border-radius:9px}
.menu-btn{display:none;width:40px;height:40px;border:1px solid var(--line-2);border-radius:10px;align-items:center;justify-content:center}
.menu-btn span{display:block;width:16px;height:1.5px;background:#fff;position:relative}
.menu-btn span::before,.menu-btn span::after{content:"";position:absolute;left:0;width:16px;height:1.5px;background:#fff}
.menu-btn span::before{top:-5px}.menu-btn span::after{top:5px}

/* ---------- hero ---------- */
.hero{position:relative;padding:96px 0 84px;overflow:hidden;border-bottom:1px solid var(--line)}
.hero::before{
  content:"";position:absolute;inset:-30% -10% auto -10%;height:760px;
  background:
    radial-gradient(46% 46% at 22% 34%,rgba(124,58,237,.30) 0%,transparent 62%),
    radial-gradient(38% 38% at 82% 12%,rgba(255,90,31,.14) 0%,transparent 66%);
  filter:blur(14px);pointer-events:none;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:88px 88px;
  mask-image:radial-gradient(70% 60% at 50% 30%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(70% 60% at 50% 30%,#000 0%,transparent 78%);
  opacity:.5;
}
.hero .wrap{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:64px;align-items:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:9px;padding:6px 13px;border-radius:999px;
  border:1px solid rgba(124,58,237,.42);background:rgba(124,58,237,.10);
  font-size:12.5px;color:#c9b6ff;margin-bottom:26px;font-family:var(--mono);letter-spacing:.04em;
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(61,220,151,.14)}
.hero h1{margin-bottom:26px}
.hero .lead{max-width:52ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.hero-meta{display:flex;flex-wrap:wrap;gap:28px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line)}
.hero-meta div span{display:block}
.hero-meta .k{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--muted);text-transform:uppercase;margin-bottom:6px}
.hero-meta .v{font-size:14.5px;color:var(--ink-2)}

/* spec card in hero */
.spec{
  border:1px solid var(--line-2);border-radius:var(--r-lg);background:
    linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.012));
  padding:26px;box-shadow:0 40px 80px -50px rgba(0,0,0,.9);
  position:relative;overflow:hidden;
}
.spec::before{content:"";position:absolute;inset:0;background:radial-gradient(80% 50% at 50% 0%,rgba(124,58,237,.22),transparent 70%);pointer-events:none}
.spec-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px dashed var(--line-2);margin-bottom:16px}
.spec-head .t{font-size:13px;color:var(--ink-2)}
.spec-head .t b{color:#fff;font-weight:600}
.badge{font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;padding:4px 9px;border-radius:6px;background:var(--orange-soft);color:#ffb08a;border:1px solid rgba(255,90,31,.28)}
.spec-row{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px solid rgba(255,255,255,.055)}
.spec-row:last-of-type{border-bottom:0}
.spec-row dt{font-size:13.5px;color:var(--muted);flex:0 0 auto}
.spec-row dd{margin:0;font-size:13.5px;color:var(--ink);text-align:right;font-family:var(--mono)}
.spec-foot{margin-top:18px;padding-top:16px;border-top:1px dashed var(--line-2);display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted)}

/* ---------- marquee ---------- */
.marquee{border-bottom:1px solid var(--line);background:var(--bg-2);overflow:hidden;padding:16px 0}
.marquee-track{display:flex;gap:52px;width:max-content;animation:slide 34s linear infinite}
.marquee span{font-family:var(--mono);font-size:12px;letter-spacing:.16em;color:#5e5e6b;text-transform:uppercase;white-space:nowrap}
.marquee span b{color:#8b8b98;font-weight:400}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.stat{background:var(--bg);padding:28px 24px}
.stat .n{font-size:38px;font-weight:600;letter-spacing:-.03em;line-height:1;display:flex;align-items:baseline;gap:3px}
.stat .n em{font-style:normal;font-size:16px;color:var(--purple);font-family:var(--mono)}
.stat .l{font-size:13px;color:var(--muted);margin-top:9px}

/* ---------- cards / grids ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.card{
  border:1px solid var(--line);border-radius:var(--r);background:var(--panel);
  padding:28px;position:relative;transition:border-color .22s,transform .22s,background .22s;
}
.card:hover{border-color:var(--line-2);transform:translateY(-3px);background:var(--panel-2)}
a.card{display:block;color:inherit}
.card .idx{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--purple);margin-bottom:16px}
.card h3{font-size:18px;margin-bottom:10px}
.card p{font-size:14px;color:var(--ink-2);line-height:1.75}
.card ul{margin-top:16px;display:grid;gap:7px}
.card ul li{font-size:13px;color:var(--muted);padding-left:16px;position:relative}
.card ul li::before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;border-radius:50%;background:var(--purple);opacity:.8}
.card--accent{border-color:rgba(124,58,237,.35);background:linear-gradient(180deg,rgba(124,58,237,.10),rgba(124,58,237,.02))}

.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:52px;flex-wrap:wrap}
.sec-head .l{max-width:56ch}
.sec-head .r{flex:0 0 auto}

/* ---------- process steps ---------- */
.steps{border-top:1px solid var(--line)}
.step{
  display:grid;grid-template-columns:88px 1.05fr 1.6fr;gap:32px;
  padding:30px 0;border-bottom:1px solid var(--line);align-items:start;
  transition:background .2s;
}
.step:hover{background:rgba(255,255,255,.015)}
.step .no{font-family:var(--mono);font-size:13px;color:var(--muted);padding-top:4px;letter-spacing:.1em}
.step .no b{display:block;font-size:26px;color:#fff;font-weight:500;letter-spacing:-.02em;line-height:1.1;margin-bottom:2px}
.step h3{font-size:19px;margin-bottom:8px}
.step .owner{font-family:var(--mono);font-size:11.5px;color:var(--purple);letter-spacing:.08em}
.step p{font-size:14px;color:var(--ink-2);margin-top:10px}
.step .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{font-family:var(--mono);font-size:11px;letter-spacing:.06em;padding:4px 9px;border-radius:6px;border:1px solid var(--line-2);color:var(--ink-2)}
.tag--o{border-color:rgba(255,90,31,.35);color:#ffb08a;background:var(--orange-soft)}

/* ---------- checklist ---------- */
.check-progress{display:flex;align-items:center;gap:16px;margin-bottom:28px;flex-wrap:wrap}
.bar{flex:1;min-width:180px;height:6px;border-radius:99px;background:rgba(255,255,255,.08);overflow:hidden}
.bar i{display:block;height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,var(--purple),var(--orange));transition:width .35s ease}
.check-group{margin-bottom:34px}
.check-group h4{font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.check{
  display:flex;gap:14px;align-items:flex-start;padding:14px 16px;border:1px solid var(--line);
  border-radius:12px;margin-bottom:9px;background:var(--panel);cursor:pointer;transition:.18s;
}
.check:hover{border-color:var(--line-2)}
.check.on{border-color:rgba(61,220,151,.4);background:rgba(61,220,151,.055)}
.check .box{
  width:19px;height:19px;border-radius:6px;border:1.5px solid rgba(255,255,255,.28);
  flex:0 0 auto;margin-top:3px;display:grid;place-items:center;transition:.18s;
}
.check.on .box{background:var(--ok);border-color:var(--ok)}
.check .box svg{width:11px;height:11px;opacity:0;transition:.18s}
.check.on .box svg{opacity:1}
.check .txt{font-size:14px;color:var(--ink-2);line-height:1.7}
.check.on .txt{color:var(--ink)}
.check .txt b{color:#fff;font-weight:500}
.check .why{display:block;font-size:12.5px;color:var(--muted);margin-top:4px}

/* ---------- compare table ---------- */
.tbl{width:100%;border-collapse:collapse;font-size:14px}
.tbl th,.tbl td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl th{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:400;background:rgba(255,255,255,.02)}
.tbl td:first-child{color:var(--ink);width:26%}
.tbl td{color:var(--ink-2)}
.tbl tr:last-child td{border-bottom:0}
.tbl .yes{color:#8fe3bd}
.tbl-wrap{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--panel)}

/* ---------- quote / callout ---------- */
.quote{
  border-left:2px solid var(--orange);padding:6px 0 6px 24px;margin:34px 0;
  font-size:clamp(17px,2vw,21px);color:#e9e9ef;line-height:1.7;letter-spacing:-.01em;
}
.callout{
  display:flex;gap:18px;padding:24px;border-radius:var(--r);
  border:1px solid rgba(255,90,31,.26);background:var(--orange-soft);margin-top:28px;
}
.callout .ico{flex:0 0 auto;width:34px;height:34px;border-radius:9px;background:rgba(255,90,31,.16);display:grid;place-items:center;color:var(--orange);font-family:var(--mono);font-size:15px}
.callout p{font-size:14px;color:#f0d9cd;line-height:1.75}
.callout b{color:#fff}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:0}
.faq summary{
  list-style:none;cursor:pointer;padding:24px 0;display:flex;align-items:flex-start;
  justify-content:space-between;gap:24px;font-size:17px;font-weight:500;color:#fff;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary .pm{
  flex:0 0 auto;width:26px;height:26px;border-radius:7px;border:1px solid var(--line-2);
  display:grid;place-items:center;transition:.2s;margin-top:2px;position:relative;
}
.faq summary .pm::before,.faq summary .pm::after{content:"";position:absolute;background:var(--ink-2);transition:.2s}
.faq summary .pm::before{width:10px;height:1.5px}
.faq summary .pm::after{width:1.5px;height:10px}
.faq details[open] summary .pm{background:var(--purple);border-color:var(--purple)}
.faq details[open] summary .pm::before,.faq details[open] summary .pm::after{background:#fff}
.faq details[open] summary .pm::after{transform:rotate(90deg);opacity:0}
.faq .ans{padding:0 0 26px;max-width:74ch}
.faq .ans p{font-size:14.5px;color:var(--ink-2);line-height:1.85}
.faq .ans p+p{margin-top:12px}
.faq .ans .mono{display:block;margin-top:12px}

/* ---------- cta ---------- */
.cta{position:relative;overflow:hidden;border-top:1px solid var(--line);background:linear-gradient(180deg,#121218 0%,#0c0c10 100%)}
.cta::before{
  content:"";position:absolute;inset:auto -20% -60% -20%;height:520px;
  background:radial-gradient(50% 60% at 50% 100%,rgba(124,58,237,.30),transparent 70%);
  pointer-events:none;
}
.cta .wrap{position:relative;z-index:2;padding-top:96px;padding-bottom:96px;text-align:center}
.cta .h2{max-width:22ch;margin:0 auto 20px}
.cta .lead{margin:0 auto 36px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-2);padding:60px 0 34px;font-size:13.5px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-grid h5{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin:0 0 16px;font-weight:400}
.footer-grid li{margin-bottom:10px}
.footer-grid a{color:var(--ink-2);transition:color .18s}
.footer-grid a:hover{color:#fff}
.footer-bot{display:flex;justify-content:space-between;gap:20px;padding-top:26px;border-top:1px solid var(--line);color:var(--muted);font-size:12.5px;flex-wrap:wrap}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- page hero (subpages) ---------- */
.page-hero{padding:76px 0 56px;border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.page-hero::before{
  content:"";position:absolute;inset:-40% 40% auto -10%;height:520px;
  background:radial-gradient(50% 50% at 30% 40%,rgba(124,58,237,.22),transparent 70%);
  pointer-events:none;
}
.page-hero .wrap{position:relative;z-index:2}
.crumb{font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;color:var(--muted);margin-bottom:20px}
.crumb a:hover{color:#fff}

/* ---------- responsive ---------- */
@media (max-width:1120px){
  .nav{display:none}
  .menu-btn{display:flex}
  .header-cta .btn--ghost{display:none}
}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .step{grid-template-columns:64px 1fr;gap:20px}
  .step .body{grid-column:2}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  .section{padding:72px 0}
  .nav{display:none}
  .menu-btn{display:flex}
  .header-cta .btn--ghost{display:none}
  .hero{padding:64px 0 56px}
  .stats{grid-template-columns:1fr 1fr}
  .grid-3,.grid-4,.grid-2{grid-template-columns:1fr}
  .step{grid-template-columns:52px 1fr;padding:24px 0;gap:14px}
  .step .no b{font-size:21px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .tbl td:first-child{width:38%}
  .tbl th,.tbl td{padding:12px 10px;font-size:13px}
  .quote{padding-left:18px}
  .cta .wrap{padding-top:72px;padding-bottom:72px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}