:root{--ink:#0b1220;--muted:#64748b;--line:#e5eaf2;--paper:#f6f8fc;--white:#fff;--blue:#2563eb;--blue2:#1d4ed8;--cyan:#06b6d4;--green:#0f8a5f;--red:#c0392b;--max:1160px}
*{box-sizing:border-box}html,body{overflow-x:hidden;width:100%;max-width:100vw}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,Segoe UI,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}.wrap{width:min(var(--max),calc(100% - 48px));margin:0 auto}
header{border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;background:rgba(246,248,252,.88);backdrop-filter:blur(16px)}
.nav{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px;font-weight:850;font-size:17px;letter-spacing:-.03em}.brand i{width:32px;height:32px;border-radius:10px;background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;display:grid;place-items:center;font-style:normal;font-size:14px;font-weight:900;box-shadow:0 8px 20px rgba(37,99,235,.22)}
.links{display:flex;gap:26px;font-size:12px;color:#64748b}.links a:hover,.links a.on{color:var(--blue)}
.page{padding:56px 0 66px;position:relative;overflow:hidden}
.page:before{content:"";position:absolute;right:-120px;top:-100px;width:620px;height:620px;border-radius:50%;background:radial-gradient(circle,rgba(37,99,235,.10),transparent 65%);pointer-events:none}
.topline{position:relative;display:flex;justify-content:space-between;gap:20px;font-size:10px;letter-spacing:.15em;color:#8a96a8;text-transform:uppercase;margin-bottom:26px}.topline b{color:var(--blue)}
h1{position:relative;font-size:clamp(52px,7.6vw,104px);line-height:.94;letter-spacing:-.075em;margin:0 0 26px;font-weight:900;max-width:1000px}
h1 em{font-style:normal;color:var(--blue)}
.lead{position:relative;max-width:600px;color:#566477;font-size:15px;margin:0}
.layout{position:relative;display:grid;grid-template-columns:.9fr 1.1fr;gap:68px;align-items:start;border-top:1px solid var(--ink);margin-top:34px;padding-top:34px}
.info{border-right:1px solid var(--line);padding-right:58px;min-width:0}
.info h2{font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:#94a3b8;margin:0 0 16px}
.line{display:flex;gap:15px;border-bottom:1px solid var(--line);padding:14px 0}.line b{font-size:10px;letter-spacing:.08em;color:var(--blue);padding-top:3px}.line strong{display:block;font-size:13px;margin-bottom:1px}.line span{display:block;font-size:11.5px;color:var(--muted)}
.rule{margin-top:24px;font-size:11.5px;color:var(--muted);max-width:440px;line-height:1.7}.rule b{color:var(--ink)}
.panel{background:var(--white);border:1px solid #dbe3ef;border-radius:16px;padding:26px;box-shadow:0 24px 60px rgba(15,23,42,.08);min-width:0}
.panel-head{display:flex;justify-content:space-between;gap:14px;align-items:flex-start;border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:20px}.panel-head h2{font-size:18px;margin:3px 0 0;letter-spacing:-.03em}.panel-head span{font-size:9px;letter-spacing:.08em;color:var(--green);background:#ecfdf5;border:1px solid #c7f0df;border-radius:999px;padding:4px 8px;white-space:nowrap}
.form{display:grid;gap:14px}.form label{font-size:11px;font-weight:800;letter-spacing:.02em;color:#465265}
.form input{width:100%;margin-top:6px;border:1px solid #dbe3ef;background:#f8fafc;border-radius:9px;padding:12px 13px;font-size:13px;color:var(--ink);outline:none;transition:.15s}.form input:focus{border-color:#93c5fd;background:#fff;box-shadow:0 0 0 3px rgba(37,99,235,.09)}.form input::placeholder{color:#a5b1c2}
.start{border:0;border-radius:9px;background:var(--blue);color:#fff;padding:13px;font-size:12.5px;font-weight:850;cursor:pointer;margin-top:2px;box-shadow:0 10px 24px rgba(37,99,235,.20);transition:.15s}.start:hover{background:var(--blue2)}
.hint{font-size:10.5px;color:#94a3b8;margin:0;line-height:1.6}
.alert{display:none;border-radius:9px;padding:11px 12px;font-size:11.5px;line-height:1.55;margin-bottom:15px}.alert.show{display:block}.alert.ok{background:#ecfdf5;border:1px solid #c7f0df;color:#0f6b4c}.alert.bad{background:#fef2f2;border:1px solid #fecaca;color:#a12a2a}
.alert strong{display:block;font-size:11.5px}.alert span{display:block;margin-top:2px;font-size:10.5px;opacity:.82}
.confirm{display:none;border:1px solid #c7d9f8;background:#eff6ff;border-radius:10px;padding:13px;margin-top:2px}.confirm.show{display:block}
.confirm p{font-size:11.5px;color:#1e3a8a;margin:0 0 10px;font-weight:700}
.confirm-actions{display:grid;grid-template-columns:1fr 1fr;gap:7px}.confirm-actions button{border-radius:8px;padding:10px;font-size:11px;font-weight:800;cursor:pointer}.yes{border:0;background:var(--blue);color:#fff}.yes:hover{background:var(--blue2)}.no{border:1px solid #bfdbfe;background:#fff;color:#1d4ed8}.no:hover{background:#f8fbff}
.foot{display:flex;justify-content:space-between;border-top:1px solid var(--line);margin-top:20px;padding-top:13px;font-size:10px;color:#9aa6b6}.foot a{color:var(--blue)}
footer{border-top:1px solid var(--line);padding:22px 0 34px;color:#94a3b8;font-size:10px}.footer-inner{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
@media(max-width:900px){.layout{grid-template-columns:1fr;gap:32px}.info{border-right:0;padding-right:0}.page{padding-top:40px}}
@media(max-width:620px){.wrap{width:100%;padding-left:15px;padding-right:15px}.links{gap:14px;font-size:11px}.links a:first-child{display:none}h1{font-size:46px}.layout{margin-top:26px;padding-top:26px}.panel{padding:18px;border-radius:13px}.topline{display:block}.topline span{display:block;margin-top:4px}}