:root{--navy:#0b1f3a;--ink:#1d1d1f;--mute:#6e6e73;--gold:#b8913f;--bg:#fbfbfd;--soft:#f5f5f7;--line:#e5e5ea}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:64px}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",sans-serif;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;line-height:1.6;padding-bottom:84px}
a{color:inherit;text-decoration:none}
.wrap{max-width:1080px;margin:0 auto;padding:0 22px}.narrow{max-width:640px}
.nav{position:sticky;top:0;z-index:10;background:rgba(251,251,253,.8);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid rgba(0,0,0,.06)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:52px}
.logo{font-weight:600;color:var(--navy);letter-spacing:.02em}.logo em{font-style:normal;font-size:11px;color:var(--mute);margin-left:6px;font-weight:400}
nav{display:flex;gap:22px;align-items:center;font-size:14px;color:var(--mute)}nav a:hover{color:var(--ink)}
.pill{background:var(--navy);color:#fff!important;padding:6px 14px;border-radius:980px;font-size:13px}
.hero{padding:88px 0 56px;text-align:center}
.kicker{color:var(--gold);font-weight:600;font-size:15px;letter-spacing:.08em;margin-bottom:14px}
h1{font-size:clamp(36px,7vw,72px);line-height:1.12;font-weight:700;letter-spacing:-.01em;color:var(--navy)}
.sub{font-size:clamp(17px,2.2vw,22px);color:var(--mute);margin:20px auto 0;max-width:600px}
.cta-row{display:flex;gap:24px;justify-content:center;align-items:center;margin-top:36px;flex-wrap:wrap}
.btn{display:inline-block;border:0;cursor:pointer;font:inherit;font-size:17px;font-weight:600;padding:14px 30px;border-radius:980px;transition:transform .15s,background .2s}
.btn:active{transform:scale(.98)}
.primary{background:var(--navy);color:#fff;box-shadow:0 0 0 1px var(--navy),inset 0 -2px 0 var(--gold)}.primary:hover{background:#13305a}
.block{display:block;width:100%;text-align:center}
.link{color:#0b5cc4;font-size:17px}
.scope{margin-top:22px;font-size:13px;color:var(--mute)}
.areas{padding:8px 0 64px}.chips{list-style:none;display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.chips li{border:1px solid var(--line);background:#fff;border-radius:980px;padding:8px 16px;font-size:14px;color:var(--navy)}
.sec{padding:96px 0}.soft{background:var(--soft)}
h2{font-size:clamp(28px,4.5vw,48px);line-height:1.15;font-weight:700;color:var(--navy);text-align:center;margin-bottom:48px;letter-spacing:-.01em}
.steps{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.steps li{background:#fff;border-radius:22px;padding:32px 28px;border:1px solid var(--line)}
.steps span{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;border:1.5px solid var(--gold);color:var(--gold);font-weight:600;margin-bottom:18px}
h3{font-size:20px;color:var(--navy);margin-bottom:6px}.steps p,.trust p{color:var(--mute);font-size:15px}
.trust{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;text-align:center}
.placeholder{margin:48px auto 0;max-width:720px;border:1.5px dashed #d4b46a;background:#fffaf0;color:#8a6a22;border-radius:14px;padding:16px 20px;font-size:13px}
.muted{color:var(--mute);text-align:center;margin:-32px 0 32px}
form{display:grid;gap:18px}
label{display:grid;gap:8px;font-size:14px;font-weight:600;color:var(--navy)}
input,select,textarea{font:inherit;font-size:17px;font-weight:400;color:var(--ink);background:#fff;border:1px solid #d2d2d7;border-radius:12px;padding:13px 14px;width:100%;-webkit-appearance:none;appearance:none}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--navy);box-shadow:0 0 0 4px rgba(11,31,58,.08)}
label small{font-weight:400;color:var(--mute);font-size:12px;text-align:right}
.chk{display:flex;gap:8px;align-items:center;font-weight:400;color:var(--mute);font-size:13px}.chk input{width:18px;height:18px;-webkit-appearance:checkbox;appearance:auto;accent-color:var(--navy)}.chk a{color:#0b5cc4}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
#err{color:#c0392b;font-size:14px;min-height:1em;text-align:center}
#done{text-align:center;background:#fff;border:1px solid var(--line);border-radius:22px;padding:40px 24px}#done h3{font-size:28px;margin-bottom:10px}#done .muted{margin:12px 0 0;font-size:13px}
details{border-bottom:1px solid var(--line);padding:20px 0}summary{cursor:pointer;font-size:17px;font-weight:600;color:var(--navy);list-style:none;display:flex;justify-content:space-between}
summary::after{content:"+";color:var(--gold);font-weight:400;font-size:22px;line-height:1}details[open] summary::after{content:"−"}summary::-webkit-details-marker{display:none}
details p{color:var(--mute);margin-top:10px;font-size:15px}
.small h3{font-size:15px}.small p{font-size:13px;color:var(--mute)}
.foot{border-top:1px solid var(--line);padding:24px 0;font-size:12px;color:var(--mute);text-align:center}
.sticky{position:fixed;left:0;right:0;bottom:0;z-index:20;padding:12px 16px calc(12px + env(safe-area-inset-bottom));background:rgba(251,251,253,.86);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-top:1px solid rgba(0,0,0,.06);transition:transform .25s}
.sticky.hide{transform:translateY(110%)}
.m{display:none}
@media(min-width:768px){.sticky{display:none}body{padding-bottom:0}}
@media(max-width:767px){nav a:not(.pill){display:none}.hero{padding:56px 0 40px}.sec{padding:64px 0}.steps,.trust{grid-template-columns:1fr;gap:14px}.trust{gap:28px}h2{margin-bottom:32px}.m{display:inline}.muted{margin:-20px 0 24px}}