:root{--f-ink:#172b4d;--f-muted:#637089;--f-brand:#23469b;--f-soft:#f0f0fd;--f-line:#dde3ec}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--f-ink);font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;background:#fafbfe}a{color:inherit}.f-header{background:#fff;border-bottom:1px solid var(--f-line);position:relative;z-index:30}.f-header-inner{max-width:1200px;margin:auto;padding:18px 28px;display:flex;align-items:center;gap:28px}.f-brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-size:22px;font-weight:800;letter-spacing:1px}.f-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:12px;color:#fff;background:var(--f-brand)}.f-nav{display:flex;gap:26px;align-items:center;margin-left:auto}.f-nav a{text-decoration:none;font-size:15px;white-space:nowrap;color:#59677e}.f-nav a:hover,.f-nav a[aria-current]{color:var(--f-brand)}.f-nav a[aria-current]{font-weight:700}.f-nav .f-login{border:1px solid var(--f-line);border-radius:10px;padding:11px 16px;color:var(--f-brand)}.f-menu{display:none;margin-left:auto;border:1px solid var(--f-line);border-radius:10px;background:#fff;padding:10px;font:inherit}.f-footer{border-top:1px solid var(--f-line);padding:34px 28px 100px;margin-top:72px;background:#fff;color:var(--f-muted);font-size:14px;line-height:1.9}.f-footer-inner{max-width:1144px;margin:auto;display:flex;justify-content:space-between;gap:28px}.f-footer a{margin-right:18px}.f-skip{position:absolute;top:-100px;left:16px;z-index:90;background:white;padding:12px}.f-skip:focus{top:5px}.f-page{max-width:1144px;margin:auto;padding:72px 28px}.f-hero{padding:66px 60px;background:linear-gradient(125deg,#efedff,#edf4ff);border-radius:28px;position:relative;overflow:hidden}.f-hero::after{content:"F";position:absolute;right:4%;bottom:-85px;font:800 360px/1 system-ui;color:#23469b08;pointer-events:none}.f-eyebrow{font-size:13px;letter-spacing:2px;color:var(--f-brand);font-weight:700}.f-hero h1{font-size:clamp(34px,5vw,58px);line-height:1.25;font-weight:650;letter-spacing:-2px;margin:22px 0}.f-hero p{max-width:640px;font-size:18px;line-height:1.9;color:#56657d}.f-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}.f-button{display:inline-flex;justify-content:center;align-items:center;min-height:52px;padding:13px 23px;border-radius:12px;text-decoration:none;border:1px solid var(--f-brand);background:var(--f-brand);color:white;font:600 16px/1.5 inherit;cursor:pointer}.f-button.secondary{color:var(--f-brand);background:#fff;border-color:var(--f-line)}.f-section{margin-top:84px}.f-section h2{font-size:30px;letter-spacing:-.6px;margin-bottom:14px}.f-intro{color:var(--f-muted);line-height:1.9;max-width:720px}.f-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:30px}.f-card{border:1px solid var(--f-line);border-radius:20px;padding:30px;background:#fff}.f-card h3{font-size:22px;margin:12px 0}.f-card p{line-height:1.9;color:var(--f-muted)}.f-card .f-price{color:var(--f-brand);font-size:27px;font-weight:650}.f-card a{color:var(--f-brand);text-underline-offset:5px}.f-step{font-size:13px;letter-spacing:2px;color:var(--f-brand)}.f-space{background:#f0f2ff;padding:42px;border-radius:24px}.f-space-list{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0}.f-space-list span{padding:12px 18px;background:#fff;border-radius:12px}.f-prose{max-width:760px;line-height:2}.f-prose h1{font-size:36px}.f-prose h2{font-size:23px;margin-top:36px}.f-message{padding:18px;border-radius:12px;background:#eef3ff;margin:18px 0;line-height:1.8}.f-error{background:#fff0ed;color:#a12c2c}.f-status{font-size:14px;color:var(--f-muted)}.f-legal-check{display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.8;margin:20px 0}.f-legal-check input{width:18px;height:18px;margin-top:4px}.f-local-toolbar{max-width:780px;margin:14px auto;padding:0 20px;display:flex;justify-content:space-between;align-items:center;font-size:14px;color:var(--f-muted)}:focus-visible{outline:3px solid #6a85ca;outline-offset:4px}[hidden]{display:none!important}@media(max-width:850px){.f-header-inner{padding:14px 20px;flex-wrap:wrap;gap:10px}.f-menu{display:block}.f-nav{display:none;width:100%;margin:8px 0 0;flex-direction:column;align-items:stretch;gap:0}.f-nav.is-open{display:flex}.f-nav a{padding:14px 8px}.f-page{padding:34px 18px}.f-hero{padding:34px 25px}.f-hero h1{letter-spacing:-1px}.f-grid{grid-template-columns:1fr}.f-section{margin-top:52px}.f-space{padding:26px}.f-footer-inner{flex-direction:column}.f-actions .f-button{flex:1;white-space:nowrap}.f-footer{padding-left:20px;padding-right:20px}}
