:root{color-scheme:light;font-family:Inter,Segoe UI,PingFang SC,Microsoft YaHei,system-ui,sans-serif;background:#f6f7f2;color:#17201a;--surface: #ffffff;--ink-soft: #5d685f;--line: #dbe2da;--accent: #0f7b6c;--accent-strong: #095f54;--danger: #b42318;--ok: #1f7a3f;--panel: #fbfdfb;--radius: 8px}*{box-sizing:border-box}body{margin:0}button{min-height:40px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);color:inherit;font:inherit;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 14px}button:focus-visible{outline:3px solid rgba(15,123,108,.28);outline-offset:2px}button:disabled{cursor:not-allowed;opacity:.45}.app-shell{width:min(1180px,calc(100vw - 32px));margin:0 auto;padding:24px 0 48px}.topbar,.workspace,.result-row,.help-panel,.summary-panel{border:1px solid var(--line);background:#fffffff0;border-radius:var(--radius)}.topbar{display:flex;justify-content:space-between;align-items:center;padding:18px 20px}.brand-kicker{margin:0 0 4px;color:var(--accent);font-size:13px;font-weight:800}h1,h2,p{margin-top:0}h1{margin-bottom:0;font-size:30px;letter-spacing:0}.topbar-actions,.action-row,.row-actions{display:flex;align-items:center;gap:10px}.privacy-pill,.status-badge{display:inline-flex;align-items:center;gap:6px;border-radius:999px;background:#e7f4ed;color:var(--accent-strong);padding:7px 10px;font-size:13px;font-weight:800}.icon-button{width:40px;padding:0}.workspace{margin-top:16px;display:grid;grid-template-columns:minmax(0,1.55fr) minmax(280px,.85fr);gap:18px;padding:18px}.upload-zone{min-height:260px;border:2px dashed #9fb4a8;border-radius:var(--radius);display:grid;place-items:center;align-content:center;text-align:center;padding:28px;background:linear-gradient(90deg,rgba(15,123,108,.08) 1px,transparent 1px) 0 0 / 22px 22px,var(--panel)}.upload-zone.is-dragging{border-color:var(--accent);background:#eef8f3}.upload-zone input{display:none}.upload-zone h2{font-size:24px;margin:12px 0 8px}.upload-zone p{color:var(--ink-soft);max-width:560px}.warning-text{border:1px solid #efd18a;border-radius:var(--radius);background:#fff8e6;color:#76551a;padding:8px 10px}.primary-button{background:var(--accent);color:#fff;border-color:var(--accent);font-weight:800}.summary-panel{padding:18px;align-self:stretch;display:flex;flex-direction:column;justify-content:space-between;gap:16px}.summary-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.metric{border:1px solid var(--line);border-radius:var(--radius);padding:12px;background:#f9fbf8}.metric span{display:block;color:var(--ink-soft);font-size:13px}.metric strong{display:block;margin-top:4px;font-size:26px}.action-row{flex-wrap:wrap}.download-notice{margin:0;border:1px solid #b9d8cb;border-radius:var(--radius);background:#eef8f3;color:var(--accent-strong);padding:10px 12px;font-size:13px;line-height:1.5}.help-panel{margin-top:16px;padding:16px 18px;color:var(--ink-soft)}.help-panel h2{color:#17201a;font-size:18px}.results{margin-top:16px;display:grid;gap:10px}.empty-state{min-height:180px;border:1px dashed var(--line);border-radius:var(--radius);display:grid;place-items:center;align-content:center;text-align:center;color:var(--ink-soft);padding:24px}.result-row{display:grid;grid-template-columns:68px minmax(0,1fr) auto;gap:14px;padding:14px;align-items:center}.cover-box{width:68px;aspect-ratio:1;border-radius:var(--radius);background:#edf1ee;display:grid;place-items:center;overflow:hidden}.cover-box img{width:100%;height:100%;object-fit:cover}.track-title{font-weight:850;overflow-wrap:anywhere}.track-meta{color:var(--ink-soft);font-size:14px;margin:3px 0 8px}.status-badge{background:#eef1ed;color:#59645c;margin-bottom:10px}.status-badge.good{background:#e6f5ea;color:var(--ok)}.status-badge.bad{background:#fff0ee;color:var(--danger)}audio{display:block;width:min(100%,520px);height:40px}.error-text{margin:8px 0 0;color:var(--danger);overflow-wrap:anywhere}.row-actions button{width:42px;padding:0}@media (max-width: 760px){.app-shell{width:min(100vw - 20px,720px);padding-top:10px}.topbar{align-items:flex-start;gap:12px;flex-direction:column}.workspace{grid-template-columns:1fr;padding:12px}.upload-zone{min-height:230px;padding:20px 14px}.upload-zone h2{font-size:21px}.result-row{grid-template-columns:54px minmax(0,1fr)}.cover-box{width:54px}.row-actions{grid-column:1 / -1;justify-content:flex-end}}