:root{color-scheme:light;--text: #1a1a1a;--muted: #a3a8ae;--line: #ececec;--green: #22c55e;--sheet: 880px;font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,sans-serif}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%}body{background:#fff;color:var(--text)}button,a{font-family:inherit}.stage{min-height:100vh}.sheet{width:min(100%,var(--sheet));margin:0 auto;padding-bottom:24px;background:#fff}.page-title{margin:0;padding:28px 20px 18px;text-align:center;font-size:clamp(22px,4.6vw,34px);font-weight:700;line-height:1.35;letter-spacing:.4px}.video-list{display:grid;gap:12px;padding:0 16px}.video-card{display:grid;grid-template-columns:minmax(132px,42%) 1fr;gap:12px;align-items:center;min-height:96px;padding:10px;border:1px solid #ededed;border-radius:10px;background:#fff;color:inherit;text-decoration:none;box-shadow:0 1px 2px #00000008}.video-card:focus-visible{outline:2px solid var(--green);outline-offset:2px}.thumb{position:relative;display:block;aspect-ratio:16 / 9;border-radius:6px;overflow:hidden;background:#d9e8f5}.thumb img,.thumb-fallback{width:100%;height:100%;object-fit:cover;display:block}.thumb-fallback{display:grid;place-items:center;color:#fff;font-size:28px;font-weight:700;background:linear-gradient(135deg,#3a7bd5,#2457c5)}.play{position:absolute;left:50%;top:50%;width:36px;height:36px;transform:translate(-50%,-50%);border-radius:50%;background:#22c55ef0;box-shadow:0 4px 12px #00000029}.play:after{content:"";position:absolute;left:14px;top:11px;border-style:solid;border-width:7px 0 7px 11px;border-color:transparent transparent transparent #fff}.meta{min-height:72px;display:flex;flex-direction:column;justify-content:space-between;padding:2px 2px 0 0}.name{font-size:16px;font-weight:600;line-height:1.4}.duration{align-self:flex-end;color:var(--muted);font-size:13px;font-variant-numeric:tabular-nums}.status{padding:24px 16px;text-align:center;color:#888}.text-button{border:0;background:transparent;color:#16a34a;font-size:15px}.player-top{position:sticky;top:0;z-index:2;display:grid;grid-template-columns:72px 1fr 72px;align-items:center;height:48px;background:#fffffff5;border-bottom:1px solid #f3f3f3}.player-top h1{margin:0;overflow:hidden;font-size:16px;font-weight:600;text-align:center;text-overflow:ellipsis;white-space:nowrap}.back{padding-left:14px;color:#333;font-size:15px;text-decoration:none}.player video,.player-empty{width:100%;aspect-ratio:16 / 9;max-height:70vh;background:#111;display:block}.player-empty{display:grid;place-items:center;padding:24px;color:#ddd;text-align:center}.player-info{padding:16px 16px 4px}.player-info h2{margin:0 0 6px;font-size:20px}.player-info p{margin:0;color:var(--muted)}.sample-note{margin-top:10px!important;color:#8a6a22!important;font-size:13px;line-height:1.5}.others{margin-top:8px}.others h2{margin:8px 16px 12px;font-size:16px}@media(min-width:900px){body{background:#eef1f4}.stage{padding:24px 0 0}.sheet{min-height:calc(100vh - 24px);border-radius:16px 16px 0 0;box-shadow:0 10px 30px #1218200f}.video-list{grid-template-columns:1fr 1fr;padding:0 20px 8px}.video-card:hover{border-color:#d7f3e3;box-shadow:0 8px 20px #12161c0f}}@media(hover:none){.video-card:hover{box-shadow:0 1px 2px #00000008}}