:root{--bg: #06101f;--bg2: #0b1b33;--card: #0e2240;--line: #1d3a63;--text: #e8f1ff;--muted: #9fb6d6;--accent: #5fd0ff;--gold: #ffd166;--danger: #ff8b8b;--ok: #8ee6b0}*{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0;font-family:Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;color:var(--text);background:radial-gradient(1200px 600px at 20% -10%,rgba(95,208,255,.18),transparent 60%),radial-gradient(900px 500px at 90% 10%,rgba(255,209,102,.12),transparent 55%),linear-gradient(160deg,var(--bg),var(--bg2))}a{color:inherit}button,input,textarea,select{font:inherit;color:inherit}.wrap{width:min(980px,calc(100% - 32px));margin:0 auto}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0 8px}.brand{font-weight:700;letter-spacing:.5px;text-decoration:none}.top-actions{display:flex;align-items:center;gap:12px}.user-chip{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:14px}.user-chip img,.avatar-fallback{width:32px;height:32px;border-radius:50%;object-fit:cover;background:#16345c;border:1px solid var(--line)}.avatar-fallback{display:grid;place-items:center;font-size:13px}.badge{display:inline-block;font-size:13px;letter-spacing:2px;color:var(--accent);border:1px solid var(--line);border-radius:999px;padding:6px 16px;background:#5fd0ff14}h1.hero-title{font-size:40px;margin:18px 0 0;background:linear-gradient(90deg,#fff,#bfe3ff);-webkit-background-clip:text;background-clip:text;color:transparent}.sub{margin-top:12px;color:var(--muted);line-height:1.8}.hero{text-align:center;padding:54px 0 28px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}.card{display:block;text-decoration:none;background:linear-gradient(180deg,var(--card),#0a1a30);border:1px solid var(--line);border-radius:18px;padding:22px;transition:transform .2s ease,border-color .2s ease}a.card:hover{transform:translateY(-4px);border-color:var(--accent)}.card h2,.card h3{margin:0 0 8px;font-size:18px}.card p,.muted{color:var(--muted);line-height:1.7}.go{margin-top:14px;color:var(--accent);font-weight:600;font-size:14px}.btn,.btn-ghost{border:0;border-radius:999px;padding:10px 18px;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}.btn{background:var(--accent);color:#062033;font-weight:700}.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--line)}.btn:disabled{opacity:.55;cursor:default}.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.section{margin:28px 0}.page-title{margin:8px 0 18px;font-size:28px}.list{display:flex;flex-direction:column;gap:12px}.stem{font-size:18px;line-height:1.7;margin:8px 0 14px}.opt{display:block;width:100%;text-align:left;margin:0 0 10px;padding:12px 14px;border-radius:12px;border:1px solid var(--line);background:#ffffff08;cursor:pointer}.opt.on{border-color:var(--gold);background:#ffd1661f}.opt.ok{border-color:var(--ok)}.opt.bad{border-color:var(--danger)}.field,textarea.field{width:100%;margin:0 0 10px;padding:12px 14px;border-radius:12px;border:1px solid var(--line);background:#ffffff0a}textarea.field{min-height:120px;resize:vertical}.agree{display:flex;gap:10px;align-items:flex-start;color:var(--muted);font-size:14px;line-height:1.6}.agree a{color:var(--accent)}.agree input{margin-top:4px}.prose{line-height:1.8}.prose :is(h1,h2,h3){line-height:1.4}.prose a{color:var(--accent)}.video{width:100%;border-radius:16px;background:#000;max-height:70vh}.explain{margin-top:16px;padding:14px;border-radius:14px;background:#ffd16614;border:1px solid rgba(255,209,102,.25)}.explain h3{margin:12px 0 6px;font-size:15px;color:var(--gold)}.ok-text{color:var(--ok);font-weight:700}.bad-text{color:var(--danger);font-weight:700}.footer{text-align:center;color:var(--muted);font-size:13px;padding:36px 0 48px}.nav-links{display:flex;gap:14px;flex-wrap:wrap;font-size:14px}.nav-links a{color:var(--muted);text-decoration:none}.nav-links a.active,.nav-links a:hover{color:var(--text)}#wx-login{min-height:240px;display:flex;justify-content:center}#wx-login iframe{margin:0 auto}.note{color:var(--gold);font-size:14px}