:root{--bg: #f4f6fb;--bg-2: #eaf0fb;--card: #ffffff;--text: #1a2540;--text-2: #5a6678;--text-3: #97a1b3;--line: #e8edf5;--brand: #2f6bff;--brand-2: #f5384e;--brand-grad: linear-gradient(135deg, #4a82ff 0%, #2f6bff 58%, #1f54e6 100%);--warm-soft: #eef3ff;--gold: #ff9500;--live: #f5384e;--danger: #f5384e;--ok: #18b566;--radius: 16px;--maxw: 520px;--safe-bottom: env(safe-area-inset-bottom, 0px);--shadow: 0 8px 28px rgba(31, 84, 230, .1)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Helvetica Neue,Microsoft YaHei,sans-serif;font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}#app{min-height:100vh;position:relative}.mobile-shell{max-width:var(--maxw);margin:0 auto;min-height:100vh;background:linear-gradient(180deg,var(--bg-2),var(--bg) 220px);position:relative}img{max-width:100%;display:block}button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}input,textarea{font-family:inherit;font-size:15px}.card{background:var(--card);border-radius:var(--radius);margin:12px;overflow:hidden;box-shadow:0 2px 10px #78503c0d}.card-title{font-size:16px;font-weight:700;padding:15px 15px 0;display:flex;align-items:center;gap:7px}.card-title:before{content:"";width:4px;height:15px;border-radius:3px;background:var(--brand-grad)}.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--brand-grad);color:#fff;border-radius:12px;padding:0 18px;height:44px;font-size:15px;font-weight:600;box-shadow:0 6px 16px #ff4d2e47;transition:transform .12s,opacity .12s}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.5;box-shadow:none}.btn-block{width:100%}.btn-ghost{background:var(--warm-soft);color:var(--brand);box-shadow:none}.btn-outline{background:#fff;color:var(--brand);border:1.5px solid var(--brand);box-shadow:none}.tag{display:inline-flex;align-items:center;gap:4px;font-size:12px;padding:3px 9px;border-radius:20px;font-weight:600}.tag-live{background:var(--brand-2);color:#fff}.tag-live .dot{width:6px;height:6px;border-radius:50%;background:#fff;animation:pulse 1.1s infinite}.tag-soft{background:var(--warm-soft);color:var(--brand)}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.7)}}.center-screen{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px;text-align:center;gap:14px}.muted{color:var(--text-3)}.spin{width:28px;height:28px;border:3px solid var(--line);border-top-color:var(--brand);border-radius:50%;animation:rot .8s linear infinite}@keyframes rot{to{transform:rotate(360deg)}}.sheet-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#140c0880;z-index:200;display:flex;align-items:flex-end;justify-content:center}.sheet{width:100%;max-width:var(--maxw);background:#fff;border-radius:20px 20px 0 0;padding:22px 18px calc(20px + var(--safe-bottom));animation:slideup .25s ease}@keyframes slideup{0%{transform:translateY(100%)}to{transform:translateY(0)}}.sheet-h{font-size:17px;font-weight:700;text-align:center;margin-bottom:4px}.sheet-sub{font-size:13px;color:var(--text-3);text-align:center;margin-bottom:16px}