:root{--bg: #f4f6f5;--card: #ffffff;--ink: #1d2421;--muted: #66736d;--brand: #07c160;--brand-deep: #059e4e;--brand-soft: #e6f9ef;--line: #e4eae6;--danger: #d63a3a;--danger-soft: #fdeeee;--warn: #9a6700;--warn-soft: #fff7e6;--radius: 16px;--shadow: 0 1px 2px rgba(16, 24, 40, .05), 0 10px 30px rgba(16, 24, 40, .06)}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica Neue,Arial,sans-serif;-webkit-font-smoothing:antialiased;line-height:1.6}#app{min-height:100vh;display:flex;flex-direction:column}a{color:var(--brand-deep);text-decoration:none}a:hover{text-decoration:underline}.page{width:100%;max-width:880px;margin:0 auto;padding:0 20px;flex:1}.topbar{display:flex;align-items:center;justify-content:space-between;padding:20px 0}.brand{display:flex;align-items:center;gap:12px}.logo{display:inline-flex}.brand-name{font-weight:700;font-size:18px}.brand-tag{color:var(--muted);font-size:12.5px}.lang-btn{border:1px solid var(--line);background:var(--card);color:var(--muted);border-radius:999px;padding:6px 14px;font-size:13px;cursor:pointer;transition:all .15s ease}.lang-btn:hover{color:var(--ink);border-color:var(--brand)}.hero{text-align:center;padding:26px 0 22px}.hero h1{font-size:30px;margin:0 0 10px;letter-spacing:.5px}.hero p{color:var(--muted);margin:0 auto;max-width:660px;font-size:15px}.panel{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;margin-bottom:26px}.panel-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:10px}.panel-head label{font-weight:600;font-size:14.5px}.count{color:var(--brand-deep);font-size:13px}textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-size:14px;font-family:inherit;resize:vertical;color:var(--ink);background:#fbfcfb}textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}.panel-actions{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;gap:8px;border-radius:999px;border:1px solid transparent;padding:10px 22px;font-size:14.5px;font-weight:600;cursor:pointer;transition:all .15s ease;font-family:inherit}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--brand);color:#fff;box-shadow:0 4px 14px #07c16059}.btn-primary:hover:not(:disabled){background:var(--brand-deep)}.btn-primary-soft{background:var(--brand-soft);color:var(--brand-deep)}.btn-primary-soft:hover{background:#d3f3e2;text-decoration:none}.btn-ghost{background:var(--card);border-color:var(--line);color:var(--ink)}.btn-ghost:hover{border-color:var(--brand);color:var(--brand-deep)}.btn-small{padding:6px 14px;font-size:13px}.btn.copied{background:var(--brand-soft);color:var(--brand-deep)}.spinner{width:14px;height:14px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.error-text{color:var(--danger);background:var(--danger-soft);border-radius:10px;padding:10px 14px;margin:14px 0 0;font-size:13.5px}.results h2{font-size:18px;margin:0 0 14px}.article-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin-bottom:16px}.article-head{display:flex;gap:14px;align-items:flex-start}.article-cover{width:96px;height:68px;object-fit:cover;border-radius:8px;flex-shrink:0;background:#eef1ef}.article-meta{min-width:0}.article-title{margin:0 0 6px;font-size:15.5px;line-height:1.45}.article-url{font-size:12.5px;color:var(--muted);word-break:break-all}.video-list{margin-top:14px;display:flex;flex-direction:column;gap:12px}.video-item{border:1px solid var(--line);border-radius:12px;padding:12px;display:flex;gap:14px;align-items:center;flex-wrap:wrap}.video-media{position:relative;width:200px;max-width:100%;flex-shrink:0;cursor:pointer;border-radius:8px;overflow:hidden;background:#111}.video-media img,.video-media video{display:block;width:100%;height:auto;min-height:112px;object-fit:cover}.play-ov{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#fff;background:#00000047;transition:background .15s ease}.play-ov:hover{background:#0006}.video-info{flex:1;min-width:200px}.video-vid{font-size:12px;color:var(--muted);margin-bottom:10px;word-break:break-all}.video-actions{display:flex;gap:8px;flex-wrap:wrap}.empty-note{color:var(--muted);margin:8px 0 0;font-size:14px}.unsupported-note{color:var(--warn);background:var(--warn-soft);border-radius:8px;padding:8px 12px;font-size:13px;margin:10px 0 0}.article-card.is-error{border-left:4px solid var(--danger)}.error-head{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.error-badge{display:inline-block;background:var(--danger-soft);color:var(--danger);border-radius:6px;padding:2px 10px;font-size:12.5px;font-weight:600}.error-note{margin:10px 0 4px;font-size:14px}.error-hint{color:var(--muted);font-size:13px;margin:0}.info{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:10px 0 30px}.info-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}.info-card h3{margin:0 0 8px;font-size:15px}.info-card p{color:var(--muted);font-size:13.5px;margin:0 0 8px}.info-card p:last-child{margin-bottom:0}.footer{text-align:center;color:var(--muted);font-size:12.5px;padding:18px 20px 26px}@media(max-width:640px){.info{grid-template-columns:1fr}.hero h1{font-size:24px}.video-item{align-items:stretch}.video-media{width:100%}}