*{margin:0;padding:0;box-sizing:border-box}
:root{
  --ink:#121a2b;--ink-2:#4a576e;--mut:#8a94a6;--line:#e6eaf0;--bg:#f6f8fb;
  --brand:#1f4ed8;--brand-2:#1538a8;--ok:#0f9960;--warn:#c98a00;--bad:#d13b3b;
  --sh:0 1px 2px rgba(18,26,43,.06),0 8px 24px rgba(18,26,43,.06);
}
html{-webkit-text-size-adjust:100%}
body{
  min-width:1200px;background:var(--bg);color:var(--ink);
  font:15px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.wrap{width:1200px;margin:0 auto;padding:0 0 4px}

/* header */
.top{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.9);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line)}
.top-in{height:70px;display:flex;align-items:center;gap:28px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:.3px}
.logo-m{width:30px;height:30px;border-radius:9px;background:linear-gradient(140deg,var(--brand),#4f7bff);color:#fff;display:grid;place-items:center;font-size:15px}
.nav{display:flex;gap:22px;margin-left:8px}
.nav-i{color:var(--ink-2);font-size:15px;padding:6px 0;border-bottom:2px solid transparent}
.nav-i:hover{color:var(--ink)}
.nav-i.on{color:var(--brand);border-bottom-color:var(--brand)}
.top .btn-ghost{margin-left:auto}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;height:42px;padding:0 22px;border-radius:10px;
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:.16s}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(31,78,216,.22)}
.btn-primary:hover{background:var(--brand-2)}
.btn-primary:disabled{opacity:.6;cursor:default}
.btn-line{border-color:var(--brand);color:var(--brand);background:#fff}
.btn-line:hover{background:#f2f6ff}
.btn-ghost{border-color:var(--line);color:var(--ink);background:#fff}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-s{height:36px;padding:0 16px;font-size:14px}
.btn-b{width:100%;height:46px;font-size:16px}

/* hero */
.hero{background:linear-gradient(180deg,#fff 0%,#f7f9fd 100%);border-bottom:1px solid var(--line);padding:64px 0 72px}
.hero-in{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:start}
.tag{display:inline-block;background:#eaf0ff;color:var(--brand);font-size:13px;font-weight:600;padding:5px 12px;border-radius:999px}
.hero h1{font-size:42px;line-height:1.28;margin:18px 0 16px;letter-spacing:-.5px}
.hero-d{color:var(--ink-2);font-size:16px;max-width:520px}
.hero-a{display:flex;gap:14px;margin-top:28px}
.hero-a.cen{justify-content:center}
.hero-r{display:flex;flex-direction:column;gap:16px}
.box{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--sh);overflow:hidden}
.box-h{padding:14px 20px;font-weight:700;border-bottom:1px solid var(--line);background:#fbfcfe}
.box-b{padding:8px 20px 16px}
.box-b.small{padding:14px 18px;color:var(--ink-2);font-size:14px}
.box-warn{border-color:#f0e2bf;background:#fffdf6}
.li{display:flex;align-items:flex-start;gap:12px;padding:11px 0;border-bottom:1px dashed var(--line)}
.li:last-child{border-bottom:0}
.li b{flex:0 0 22px;height:22px;border-radius:6px;background:#eaf0ff;color:var(--brand);display:grid;place-items:center;font-size:12px}
.li span{color:var(--ink-2)}

/* sections */
.sec{padding:56px 0 8px}
.sec-h{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:22px}
.sec-h h2{font-size:24px;letter-spacing:-.2px}
.sec-h a{color:var(--brand);font-size:14px}
.sec-t{font-size:15px;font-weight:700;margin:24px 0 10px}
.sec-t.wide-t{margin-top:36px}
.lead{color:var(--ink-2);max-width:880px;margin-bottom:18px}

/* cards */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{position:relative;background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 22px 20px;box-shadow:var(--sh);
  display:flex;flex-direction:column;transition:.18s}
.card:hover{transform:translateY(-3px);border-color:#cfdcfb;box-shadow:0 12px 30px rgba(18,26,43,.1)}
.card h3{font-size:17px;line-height:1.45;margin-bottom:8px;padding-right:52px}
.tg{color:var(--ink-2);font-size:14px;margin-bottom:14px;min-height:44px}
.pop{position:absolute;top:16px;right:16px;background:#fff4e5;color:#b8761b;font-size:12px;font-weight:700;padding:3px 9px;border-radius:999px}
.pts{margin-bottom:16px}
.pts li{position:relative;padding-left:18px;color:var(--ink-2);font-size:14px;line-height:1.9}
.pts li:before{content:"";position:absolute;left:2px;top:11px;width:7px;height:7px;border-radius:50%;background:#c9d6f5}
.card-f{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line)}
.pr b{font-size:24px;color:var(--ink);letter-spacing:-.5px}
.pr span{display:block;font-size:12px;color:var(--mut)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding-bottom:56px}
.step{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px}
.step-n{font-size:13px;font-weight:700;color:var(--brand);letter-spacing:1px}
.step-t{font-size:16px;font-weight:700;margin:8px 0 6px}
.step-d{color:var(--ink-2);font-size:14px}

/* product detail */
.pd{padding:26px 0 56px}
.crumb{color:var(--ink-2);font-size:14px}
.crumb:hover{color:var(--brand)}
.pd-grid{display:grid;grid-template-columns:1fr 360px;gap:36px;margin-top:18px}
.pd-n{font-size:30px;letter-spacing:-.3px}
.pd-tg{color:var(--ink-2);font-size:16px;margin:10px 0 6px}
.checks li{position:relative;padding-left:26px;line-height:2;color:var(--ink-2)}
.checks li:before{content:"✓";position:absolute;left:0;top:0;color:var(--ok);font-weight:700}
.pd-d{color:var(--ink-2)}
.side{position:sticky;top:90px;align-self:start;background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:var(--sh)}
.side-p{font-size:15px;color:var(--ink-2)}
.side-p b{display:block;font-size:32px;color:var(--brand);letter-spacing:-1px;margin-top:4px}
.side-s{color:var(--mut);font-size:13px;margin:6px 0 16px}
.side-t{margin-top:14px;font-size:13px;color:var(--mut);text-align:center}
.minis{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.mini{display:flex;justify-content:space-between;gap:12px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 16px;font-size:14px}
.mini:hover{border-color:#cfdcfb;color:var(--brand)}
.mini b{white-space:nowrap}

/* form */
.form label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:12px}
.form input,.form textarea{width:100%;margin-top:6px;padding:11px 12px;border:1px solid var(--line);border-radius:10px;font:inherit;background:#fbfcfe}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(31,78,216,.1)}
.msg{margin-top:10px;font-size:14px;min-height:20px}
.err{color:var(--bad)}
.qres{margin-top:14px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:6px 18px;text-align:left}
.qres div{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px dashed var(--line)}
.qres div:last-child{border-bottom:0}
.qres b{color:var(--mut);font-weight:500}
.qres.err{color:var(--bad)}

/* table */
.tbl{width:100%;border-collapse:separate;border-spacing:0;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--sh)}
.tbl th,.tbl td{padding:14px 18px;border-bottom:1px solid var(--line);text-align:left;font-size:14px;vertical-align:top}
.tbl th{background:#fbfcfe;color:var(--mut);font-weight:600;font-size:13px}
.tbl tr:last-child td{border-bottom:0}
.tbl tbody tr:hover{background:#fafbff}
.c{text-align:center}
.r{text-align:right}
.tl-n{font-weight:700}
.tl-t{color:var(--ink-2);font-size:13px;margin-top:2px}
.tbl .r b{font-size:18px}
.tbl .r span{display:block;font-size:12px;color:var(--mut)}
.mut{color:var(--mut);font-size:13px}

/* result page */
.narrow{max-width:640px;margin:0 auto;padding:60px 0 90px}
.narrow.center{text-align:center}
.h1{font-size:28px;margin-bottom:10px}
.badge{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;margin:0 auto 18px;font-size:22px;color:#fff;background:var(--warn)}
.badge.sm{width:auto;height:auto;display:inline;background:none;font-size:11px;margin-right:5px}
.badge-ok{background:var(--ok)}
.badge-bad{background:var(--bad)}
.badge-wait{background:var(--warn)}
.card-fm{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px;box-shadow:var(--sh);margin-top:20px}

/* footer */
.foot{margin-top:70px;background:#101828;color:#c4cbda;padding:44px 0 34px}
.foot-in{display:grid;grid-template-columns:1fr 1fr 1.5fr;gap:40px}
.foot-t{color:#fff;font-weight:700;margin-bottom:10px}
.foot-d{font-size:14px;line-height:2}
.foot-c div{font-size:14px;line-height:2}
.foot-n{font-size:13px;color:#8a94a6;line-height:1.9;border-left:1px solid #253148;padding-left:22px}