:root{--bg:#f3f4f7;--panel:#fff;--text:#171a21;--muted:#6b7280;--line:#e2e5eb;--brand:#4f3ce8;--brand-soft:#eeebff;--danger-bg:#fdecec;--danger:#8a1f1f;--warn-bg:#fff6e0;--warn:#7a4b00}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);-webkit-text-size-adjust:100%;margin:0;font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif}button,input,textarea,select{font:inherit;color:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}.page{flex-direction:column;gap:14px;max-width:820px;margin:0 auto;padding:20px 16px 64px;display:flex}.top{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:12px;display:flex}.title h1{margin:0;font-size:26px}.title p{color:var(--muted);margin:4px 0 0;font-size:14px}.top-actions{flex-wrap:wrap;gap:8px;display:flex}.top-actions select{max-width:230px}.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px}.card h2{align-items:center;gap:8px;margin:0 0 6px;font-size:19px;display:flex}.num{color:var(--brand);font-size:22px}.help{color:var(--muted);margin:4px 0 10px;font-size:13px;line-height:1.6}.center{text-align:center}.btn{border:1px solid var(--line);white-space:nowrap;background:#fff;border-radius:10px;justify-content:center;align-items:center;min-height:40px;padding:0 14px;font-size:14px;font-weight:600;display:inline-flex}.btn.primary{background:var(--brand);color:#fff;border-color:var(--brand)}.btn.ghost{color:var(--muted)}.btn.big{border-radius:12px;width:100%;min-height:54px;font-size:18px}.btn:disabled{opacity:.55;cursor:not-allowed}input[type=text],input[type=number],textarea,select{border:1px solid var(--line);background:#fff;border-radius:10px;width:100%;padding:9px 11px;font-size:15px}select{width:auto;min-height:40px}textarea{resize:vertical;line-height:1.55}textarea::placeholder{color:#a3a8b3}textarea:focus,input:focus,select:focus{outline:2px solid var(--brand-soft);border-color:var(--brand)}.banner{background:var(--warn-bg);color:var(--warn);border-radius:10px;margin-top:10px;padding:10px 12px;font-size:14px}.banner.err{background:var(--danger-bg);color:var(--danger)}.drop{cursor:pointer;text-align:center;background:#fafaff;border:2px dashed #c9cbe8;border-radius:14px;flex-direction:column;align-items:center;gap:6px;padding:34px 16px;display:flex}.drop:hover{border-color:var(--brand)}.drop-icon{color:var(--brand);font-size:30px}.drop small{color:var(--muted)}.source{grid-template-columns:200px 1fr;align-items:start;gap:14px;display:grid}.source video{background:#000;border-radius:10px;width:100%;max-height:340px}.source-info p{margin:0 0 10px}.field{border-top:1px solid var(--line);margin-top:14px;padding-top:14px}.field-head label{font-size:16px;font-weight:700}.field-head em{color:var(--muted);margin-left:8px;font-size:12px;font-style:normal;font-weight:400}.field-body{grid-template-columns:1fr 120px;gap:12px;margin-top:8px;display:grid}.chips{flex-wrap:wrap;align-items:center;gap:6px;margin-top:8px;display:flex}.chips span{color:var(--muted);font-size:12px}.chip{background:var(--brand-soft);color:var(--brand);border:1px solid #d9d4ff;border-radius:999px;padding:5px 11px;font-size:13px}.chip:hover{background:#e2ddff}.thumb{flex-direction:column;gap:6px;display:flex}.thumb img,.thumb-empty{aspect-ratio:3/4;object-fit:cover;background:#f1f2f5;border-radius:10px;width:100%}.thumb-empty{text-align:center;white-space:pre-line;color:#9aa0ab;border:1px dashed var(--line);justify-content:center;align-items:center;font-size:12px;display:flex}.mini{text-align:center;border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:8px;padding:6px 4px;font-size:12px;display:block}.mini.ghost{color:var(--muted);border-color:#0000}.compare{grid-template-columns:1fr 1fr;gap:12px;margin-top:16px;display:grid}.compare p{margin:0 0 6px;font-weight:700}.compare video{background:#000;border-radius:10px;width:100%;max-height:460px}.compare .btn{width:100%;margin-top:8px}.older{margin-top:12px}.older summary{cursor:pointer;color:var(--muted);font-size:14px}.older-grid{grid-template-columns:repeat(3,1fr);gap:8px;margin-top:8px;display:grid}.older-grid video{background:#000;border-radius:8px;width:100%}.phone{align-items:center;gap:16px;display:flex}.qr{flex-shrink:0;width:140px}.qr svg{width:100%;height:auto;display:block}.url{-webkit-user-select:all;user-select:all;word-break:break-all;margin:6px 0;font-size:18px;font-weight:700}.advanced summary{cursor:pointer;color:var(--muted);font-weight:700}.advanced[open] summary{margin-bottom:6px}.adv-block{border-top:1px solid var(--line);flex-direction:column;gap:8px;margin-top:12px;padding-top:12px;display:flex}.adv-block h3{margin:4px 0 0;font-size:15px}.adv-block .btn{align-self:flex-start}.row{flex-wrap:wrap;align-items:flex-end;gap:8px;display:flex}.row label{color:var(--muted);flex-direction:column;gap:4px;font-size:13px;display:flex}.row input{width:110px}.check{align-items:flex-start;gap:8px;font-size:14px;line-height:1.5;display:flex}.check input{margin-top:4px}.sub{flex-direction:column;gap:6px;padding-left:24px;display:flex}.small-video{background:#000;border-radius:8px;width:200px}.seg{grid-template-columns:64px 64px 1fr;gap:6px;display:grid}.empty{text-align:center}@media (max-width:640px){.page{padding:14px 12px 48px}.title h1{font-size:22px}.top-actions{width:100%}.top-actions select{flex:1;max-width:none}.source{grid-template-columns:1fr}.source video{max-height:300px}.field-body{grid-template-columns:1fr 96px}.compare{grid-template-columns:1fr 1fr;gap:8px}.older-grid{grid-template-columns:1fr 1fr}.phone{text-align:center;flex-direction:column}.seg{grid-template-columns:52px 52px 1fr}}.login{flex-direction:column;gap:12px;width:100%;max-width:380px;margin:12vh auto 0;display:flex}.login h1{margin:0;font-size:24px}.login input{min-height:48px;font-size:17px}