.app-shell{max-width:560px;margin:0 auto;min-height:100vh;background:var(--bg);box-shadow:0 0 40px #1e293b14}:root{--brand: #6366f1;--brand-2: #8b5cf6;--brand-soft: #eef2ff;--navy: #0f172a;--ink: #1e293b;--ink-2: #475569;--ink-3: #94a3b8;--bg: #f5f6fa;--card: #ffffff;--line: #eef0f4;--success: #10b981;--warning: #f59e0b;--danger: #ef4444;--radius: 16px;--shadow: 0 2px 12px rgba(30, 41, 59, .06);--g1: #6366f1;--g2: #8b5cf6;--grad: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;padding:0;background:#eceef2;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Helvetica Neue,Microsoft YaHei,sans-serif;font-size:14px;line-height:1.5}button{font-family:inherit;border:none;background:none;cursor:pointer;color:inherit;font-size:inherit}input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;outline:none}img{max-width:100%}::-webkit-scrollbar{width:0;height:0}.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow)}.btn-primary{background:var(--grad);color:#fff;border-radius:999px;padding:0 22px;height:44px;font-weight:600;font-size:15px;box-shadow:0 6px 16px #6366f14d;transition:opacity .2s,transform .1s}.btn-primary:active{opacity:.9;transform:scale(.99)}.btn-primary:disabled{opacity:.5;box-shadow:none}.btn-ghost{background:var(--brand-soft);color:var(--brand);border-radius:999px;height:40px;padding:0 18px;font-weight:600}.btn-danger{background:#fee2e2;color:var(--danger);border-radius:999px;height:34px;padding:0 14px;font-weight:500;font-size:12px}.hint{color:var(--ink-3);font-size:12px}.flex{display:flex;align-items:center}.flex-1{flex:1;min-width:0}.empty{text-align:center;color:var(--ink-3);padding:40px 16px;font-size:13px}.empty .big{font-size:40px;margin-bottom:10px}.navbar{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:8px;height:50px;padding:0 12px;background:#fffffff0;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}.navbar .back{width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--ink)}.navbar .title{font-size:16px;font-weight:600;flex:1;text-align:center;margin-right:30px}.navbar .spacer{width:30px}.spin{width:18px;height:18px;border:2px solid rgba(99,102,241,.25);border-top-color:var(--brand);border-radius:50%;animation:rot .7s linear infinite;display:inline-block}@keyframes rot{to{transform:rotate(360deg)}}.toast{position:fixed;left:50%;top:40%;transform:translate(-50%,-50%);background:#0f172ae0;color:#fff;font-size:13px;padding:10px 18px;border-radius:10px;z-index:99;max-width:78%;text-align:center;animation:toastIn .2s}@keyframes toastIn{0%{opacity:0;transform:translate(-50%,-50%) scale(.92)}}