:root{
  --ink:#0A1120; --ink2:#111C30; --ink3:#1A2740;
  --paper:#F6F8FB; --card:#FFFFFF; --line:#E3E9F2;
  --txt:#12202F; --txt2:#4A5A6E; --txt3:#7A8A9E;
  --brand:#2F6BFF; --brand2:#1B4FE0; --accent:#00B39B; --accent2:#00C2A8;
  --danger:#E5484D; --warn:#E8990C; --ok:#12A150;
  --r:14px; --sh:0 2px 10px rgba(16,32,56,.07),0 12px 32px rgba(16,32,56,.05);
  --max:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--txt);line-height:1.75;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.narrow{max-width:840px;margin:0 auto;padding:0 20px}

/* ---------- header ---------- */
header.site{position:sticky;top:0;z-index:60;background:rgba(10,17,32,.92);
  backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.08)}
header.site .wrap{display:flex;align-items:center;gap:22px;height:60px}
header.site .logo{color:#fff;font-weight:800;font-size:16px;letter-spacing:.3px;display:flex;align-items:center;gap:9px}
header.site .logo:hover{text-decoration:none}
.shieldmark{width:22px;height:24px;display:inline-block}
header.site nav{display:flex;gap:20px;margin-left:auto;font-size:14px}
header.site nav a{color:#B9C6DB}
header.site nav a:hover{color:#fff;text-decoration:none}
@media(max-width:760px){header.site nav{display:none}}

/* ---------- hero ---------- */
.hero{background:
  radial-gradient(900px 420px at 12% -10%,rgba(47,107,255,.34),transparent 60%),
  radial-gradient(760px 380px at 88% 0%,rgba(0,194,168,.20),transparent 62%),
  linear-gradient(180deg,#0A1120 0%,#0D1729 74%,#0F1B2F 100%);
  color:#fff;padding:74px 0 66px;position:relative;overflow:hidden}
.hero:after{content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;pointer-events:none;mask-image:linear-gradient(180deg,#000,transparent 78%)}
.hero .wrap{position:relative;z-index:2}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:1.2px;
  color:#8FE9DA;background:rgba(0,194,168,.12);border:1px solid rgba(0,194,168,.32);
  padding:5px 13px;border-radius:100px;font-weight:600}
h1.hero-t{font-size:44px;line-height:1.28;margin:20px 0 16px;font-weight:800;letter-spacing:-.5px}
h1.hero-t em{font-style:normal;background:linear-gradient(92deg,#7FE9D9,#5B9BFF);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:17px;color:#B7C5DA;max-width:760px;margin:0 0 26px}
.hero-sub b{color:#fff;font-weight:600}
.hero-cta{display:flex;gap:13px;flex-wrap:wrap;margin-bottom:34px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:10px;
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;transition:.16s}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-p{background:var(--brand);color:#fff;box-shadow:0 8px 22px rgba(47,107,255,.34)}
.btn-p:hover{background:var(--brand2)}
.btn-g{background:rgba(255,255,255,.07);color:#fff;border-color:rgba(255,255,255,.24)}
.btn-g:hover{background:rgba(255,255,255,.13)}
.btn-o{background:#fff;color:var(--txt);border-color:var(--line)}
.btn-lg{padding:15px 34px;font-size:16px}

.hero-facts{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;max-width:860px}
.fact{background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:14px 16px}
.fact b{display:block;font-size:21px;color:#fff;font-weight:800;line-height:1.3}
.fact span{font-size:12.5px;color:#93A5BE}
@media(max-width:760px){
  h1.hero-t{font-size:30px}.hero{padding:48px 0 42px}.hero-sub{font-size:15.4px}
  .hero-facts{grid-template-columns:repeat(2,1fr)}
}

/* ---------- section ---------- */
section{padding:66px 0}
section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:780px;margin-bottom:34px}
.sec-kicker{font-size:12.5px;font-weight:700;letter-spacing:1.3px;color:var(--brand);text-transform:uppercase}
h2.sec-t{font-size:29px;margin:8px 0 12px;font-weight:800;letter-spacing:-.3px;line-height:1.36}
.sec-d{color:var(--txt2);font-size:15.6px;margin:0}
@media(max-width:760px){h2.sec-t{font-size:23px}section{padding:46px 0}}

/* ---------- 边界：做/不做 ---------- */
.bound{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.bcard{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px 24px;box-shadow:var(--sh)}
.bcard h3{margin:0 0 4px;font-size:16.5px;display:flex;align-items:center;gap:9px}
.bcard ul{margin:12px 0 0;padding-left:0;list-style:none}
.bcard li{position:relative;padding-left:26px;margin:9px 0;font-size:14.6px;color:var(--txt2)}
.bcard li:before{position:absolute;left:0;top:0;font-weight:800}
.bcard.no{border-color:#FADBDC;background:#FFFBFB}
.bcard.no h3{color:var(--danger)}
.bcard.no li:before{content:"✕";color:var(--danger)}
.bcard.yes{border-color:#CBEDE4;background:#FBFFFD}
.bcard.yes h3{color:var(--ok)}
.bcard.yes li:before{content:"✓";color:var(--ok)}
.bcard li b{color:var(--txt);font-weight:600}
@media(max-width:760px){.bound{grid-template-columns:1fr}}

.note{margin-top:18px;background:#FFF9EC;border:1px solid #F6E2B8;border-radius:12px;
  padding:15px 18px;font-size:14.2px;color:#7A5A11}
.note b{color:#5C4200}
.note.dark{background:rgba(229,72,77,.09);border-color:rgba(229,72,77,.3);color:#FFD4D6}

/* ---------- 流水线 ---------- */
.pline{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.pitem{background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:0;overflow:hidden;box-shadow:var(--sh);transition:.18s}
.pitem:hover{border-color:#C7D6F5}
.pitem.first{border-color:var(--brand);box-shadow:0 0 0 1px var(--brand),var(--sh)}
.phead{display:flex;gap:13px;padding:18px 20px;cursor:pointer;align-items:flex-start}
.pnum{flex:0 0 34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--brand),#5B9BFF);
  color:#fff;font-weight:800;font-size:14.5px;display:flex;align-items:center;justify-content:center}
.pitem.first .pnum{background:linear-gradient(135deg,var(--accent),var(--accent2))}
.phead b{display:block;font-size:15.6px;line-height:1.45}
.phead span{font-size:13.2px;color:var(--txt3)}
.pbody{display:none;padding:0 20px 20px 67px;font-size:14.2px;color:var(--txt2)}
.pitem.open .pbody{display:block}
.pbody dl{margin:0}
.pbody dt{font-weight:700;color:var(--txt);font-size:13px;margin-top:10px;letter-spacing:.3px}
.pbody dd{margin:2px 0 0}
.pbody .tagrow{margin-top:12px;display:flex;gap:7px;flex-wrap:wrap}
.tag{font-size:11.5px;padding:3px 9px;border-radius:100px;background:#EEF3FE;color:#2F5FCC;font-weight:600}
.tag.hot{background:#FDECEC;color:#C0353A}
@media(max-width:760px){.pline{grid-template-columns:1fr}.pbody{padding-left:20px}}
.pline-cta{margin-top:20px;display:flex;gap:12px;align-items:center;flex-wrap:wrap;font-size:14.2px;color:var(--txt2)}

/* ---------- 变形通道 ---------- */
.flow{display:grid;grid-template-columns:1fr auto 1fr;gap:16px;align-items:center;margin:26px 0}
.fbox{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 20px;box-shadow:var(--sh)}
.fbox h4{margin:0 0 8px;font-size:14.2px;color:var(--txt)}
.fbox code{display:block;background:#F3F6FB;border-radius:7px;padding:8px 11px;font-size:12.6px;
  color:#334;margin:5px 0;overflow-x:auto;white-space:pre;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
.farrow{font-size:24px;color:var(--brand);text-align:center}
@media(max-width:760px){.flow{grid-template-columns:1fr}.farrow{transform:rotate(90deg)}}

/* ---------- 价格 ---------- */
.tierctl{display:flex;align-items:center;gap:14px;flex-wrap:wrap;background:#fff;
  border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin-bottom:24px;box-shadow:var(--sh)}
.tierctl label{font-size:14.2px;font-weight:700}
.tierctl input[type=range]{flex:1;min-width:180px;accent-color:var(--brand)}
.tierctl .hc{font-size:14.2px;color:var(--txt2)}
.tierctl .hc b{color:var(--brand);font-size:17px}
.prices{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.plan{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px 24px;
  position:relative;box-shadow:var(--sh);transition:.18s}
.plan.hl{border-color:var(--brand);box-shadow:0 0 0 1px var(--brand),0 14px 40px rgba(47,107,255,.16);transform:translateY(-3px)}
.plan .badge{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--brand);color:#fff;
  font-size:12px;font-weight:700;padding:4px 14px;border-radius:100px;white-space:nowrap}
.plan .pname{font-size:13px;font-weight:700;letter-spacing:1px;color:var(--txt3)}
.plan .prange{font-size:15px;font-weight:700;margin:4px 0 14px}
.plan .price{font-size:38px;font-weight:800;line-height:1.1;letter-spacing:-1px}
.plan .price small{font-size:14px;font-weight:600;color:var(--txt3);letter-spacing:0}
.plan .pnote{font-size:12.8px;color:var(--txt3);margin:6px 0 16px}
.plan ul{margin:0;padding:0;list-style:none;font-size:14px;color:var(--txt2)}
.plan li{position:relative;padding-left:23px;margin:8px 0}
.plan li:before{content:"✓";position:absolute;left:0;color:var(--ok);font-weight:800}
.plan li.no:before{content:"—";color:#B9C4D4}
.plan li.no{color:var(--txt3)}
.plan .cta{margin-top:20px;width:100%;justify-content:center}
@media(max-width:900px){.prices{grid-template-columns:1fr}.plan.hl{transform:none}}

/* ---------- 问卷 ---------- */
.qwrap{background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px 32px;box-shadow:var(--sh)}
.qstep{display:flex;align-items:center;gap:10px;margin-bottom:22px;font-size:13px;color:var(--txt3)}
.qstep i{width:26px;height:26px;border-radius:50%;background:#EEF3FE;color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px;font-style:normal}
.qfield{margin-bottom:20px}
.qfield label.qt{display:block;font-weight:700;font-size:14.6px;margin-bottom:9px}
.qfield .qhint{font-size:12.8px;color:var(--txt3);font-weight:400;margin-left:5px}
.opts{display:flex;gap:9px;flex-wrap:wrap}
.opt{position:relative}
.opt input{position:absolute;opacity:0;pointer-events:none}
.opt span{display:inline-block;padding:8px 15px;border:1px solid var(--line);border-radius:9px;
  font-size:14px;cursor:pointer;background:#fff;transition:.14s;color:var(--txt2)}
.opt input:checked+span{border-color:var(--brand);background:#EEF3FE;color:var(--brand2);font-weight:700}
.opt input:focus-visible+span{outline:2px solid var(--brand);outline-offset:2px}
input[type=text],textarea{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:9px;
  font-size:14.4px;font-family:inherit;color:var(--txt);background:#fff}
input[type=text]:focus,textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,107,255,.12)}
.qactions{display:flex;gap:12px;align-items:center;margin-top:26px;flex-wrap:wrap}
.qerr{color:var(--danger);font-size:13.6px;font-weight:600}

.qresult{display:none;margin-top:24px}
.qresult.show{display:block}
.res{border-radius:14px;padding:24px 26px;border:1px solid var(--line);background:#FBFCFE}
.res.block{border-color:#F5C2C4;background:#FFF7F7}
.res h3{margin:0 0 8px;font-size:19px}
.res.block h3{color:var(--danger)}
.res p{margin:8px 0;font-size:14.6px;color:var(--txt2)}
.res .k{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin:16px 0}
.res .k div{background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 14px}
.res .k b{display:block;font-size:19px;color:var(--brand)}
.res .k span{font-size:12.4px;color:var(--txt3)}
.res ol{margin:12px 0 0;padding-left:20px;font-size:14.3px;color:var(--txt2)}
.res ol li{margin:6px 0}

/* ---------- 对比 ---------- */
.cmp{width:100%;border-collapse:separate;border-spacing:0;font-size:14.2px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--sh)}
.cmp th,.cmp td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.cmp thead th{background:#F2F6FC;font-size:13.2px;font-weight:800;color:var(--txt2);letter-spacing:.3px}
.cmp thead th.us{background:linear-gradient(135deg,#EEF3FE,#E8F8F5);color:var(--brand2)}
.cmp td.us{background:#FAFCFF;font-weight:600}
.cmp tr:last-child td{border-bottom:none}
.cmp .yes{color:var(--ok);font-weight:700}
.cmp .no{color:var(--danger);font-weight:700}
.cmp .mid{color:var(--warn);font-weight:700}
@media(max-width:820px){.cmp{display:block;overflow-x:auto;white-space:nowrap}}

/* ---------- FAQ ---------- */
.faqsearch{position:relative;margin-bottom:18px}
.faqsearch input{padding-left:42px}
.faqsearch:before{content:"⌕";position:absolute;left:16px;top:9px;font-size:19px;color:var(--txt3)}
.faqgrp{margin:22px 0 8px;font-size:13px;font-weight:800;letter-spacing:1px;color:var(--brand)}
.faq{background:#fff;border:1px solid var(--line);border-radius:11px;margin-bottom:9px;overflow:hidden}
.faq summary{padding:15px 18px;font-weight:700;font-size:14.6px;cursor:pointer;list-style:none;
  display:flex;justify-content:space-between;gap:14px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";font-size:19px;color:var(--txt3);font-weight:400;flex:0 0 auto}
.faq[open] summary:after{content:"−"}
.faq[open] summary{border-bottom:1px solid var(--line);background:#FAFCFF}
.faq .a{padding:15px 18px;font-size:14.2px;color:var(--txt2)}
.faq .a p{margin:0 0 9px}
.faq .a p:last-child{margin:0}
.faq .a strong{color:var(--txt)}
.faq.hide{display:none}

/* ---------- 免责 ---------- */
.legal{background:#0A1120;color:#9FB0C8;padding:56px 0}
.legal h2{color:#fff;font-size:21px;margin:0 0 6px}
.legal .sub{font-size:13.6px;color:#7B8CA6;margin:0 0 24px}
.legal details{border-top:1px solid rgba(255,255,255,.1);padding:16px 0}
.legal summary{color:#DCE6F5;font-weight:700;font-size:14.6px;cursor:pointer;list-style:none}
.legal summary::-webkit-details-marker{display:none}
.legal summary:before{content:"▸ ";color:var(--accent2)}
.legal details[open] summary:before{content:"▾ "}
.legal .lc{font-size:14px;line-height:1.9;margin-top:12px}
.legal .lc h4{color:#fff;font-size:14px;margin:16px 0 6px}
.legal .lc p{margin:8px 0}
.legal .lc ol,.legal .lc ul{margin:8px 0;padding-left:22px}
.legal .lc b{color:#FFD9A8}
.legal .warnbar{margin-top:22px;border:1px solid rgba(229,72,77,.35);background:rgba(229,72,77,.1);
  border-radius:12px;padding:16px 18px;color:#FFD4D6;font-size:14px}

/* ---------- footer ---------- */
footer.site{background:#07101D;color:#7B8CA6;padding:34px 0;font-size:13.4px;border-top:1px solid rgba(255,255,255,.06)}
footer.site a{color:#A9BBD4}
footer.site .row{display:flex;gap:22px;flex-wrap:wrap;align-items:center}
footer.site .r2{margin-top:14px;font-size:12.6px;color:#5E708A;line-height:1.8}