:root{--bg:#0e1116;--surface:#12161c;--surface2:#1b212a;--border:#1f252e;--dash:#3a4250;--text:#e8ecf1;--muted:#9aa4b2;--accent:#4fe3c1;--accent-hover:#3dd2b1;--font:"Poppins", system-ui, -apple-system, sans-serif}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background-color:var(--bg);color:var(--text);font-family:var(--font);-webkit-font-smoothing:antialiased;flex-direction:column;min-height:100vh;font-size:15px;line-height:1.6;display:flex}.hidden{display:none!important}.site-header{z-index:100;-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);background:#0e1116eb;padding:14px 20px;position:sticky;top:0}.header-container{justify-content:space-between;align-items:center;max-width:1120px;margin:0 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var(--border);color:#cbd5e1;border-radius:20px;flex-direction:column;gap:24px;padding:36px 28px;line-height:1.8;display:flex}.legal-card h2{color:var(--text);margin-top:18px;font-size:20px;font-weight:700}.legal-card h3{color:var(--text);margin-top:10px;font-size:16px;font-weight:600}.legal-card ul{flex-direction:column;gap:6px;padding-left:20px;display:flex}.legal-highlight-box{background-color:var(--surface2);border:1px solid var(--border);color:var(--text);border-radius:12px;padding:16px 20px;font-weight:500}@media (width>=900px){.hero-section{grid-template-columns:1fr 1fr;align-items:start;gap:40px;display:grid}.hero-title{letter-spacing:-1.2px;font-size:56px}.slider-container{height:400px}}.video-selected-card{background-color:var(--surface2);border:1px solid var(--border);border-radius:14px;justify-content:space-between;align-items:center;gap:14px;margin-top:16px;padding:14px 18px;font-size:13px;display:flex}.video-selected-info{flex-direction:column;gap:4px;display:flex;overflow:hidden}.video-selected-title{color:var(--text);white-space:nowrap;text-overflow:ellipsis;font-weight:600;overflow:hidden}.video-selected-meta{color:var(--muted);flex-wrap:wrap;gap:12px;font-size:12px;display:flex}.video-meta-tag{color:var(--accent)}.btn-remove-file{border:1px solid var(--border);color:var(--muted);font-size:12px;font-family:var(--font);cursor:pointer;white-space:nowrap;background:0 0;border-radius:8px;padding:6px 12px;transition:all .2s}.btn-remove-file:hover{color:#ef4444;border-color:#ef4444}.tab-warning{color:#fbbf24;text-align:center;background:#f59e0b1f;border:1px solid #f59e0b59;border-radius:10px;justify-content:center;align-items:center;gap:8px;margin-top:12px;padding:10px 16px;font-size:13px;font-weight:500;display:flex}.video-compare-grid{grid-template-columns:1fr;gap:16px;display:grid}@media (width>=768px){.video-compare-grid{grid-template-columns:1fr 1fr;gap:20px}}.video-card-item{background-color:var(--surface);border:1px solid var(--border);border-radius:16px;flex-direction:column;gap:10px;padding:12px;display:flex;position:relative;overflow:hidden}.video-player-wrapper{background-color:#000;border-radius:12px;justify-content:center;align-items:center;width:100%;display:flex;position:relative;overflow:hidden}.video-player-preview{object-fit:contain;background-color:#000;border-radius:10px;width:100%;max-height:480px;display:block}.video-card-badge{z-index:5;letter-spacing:.5px;text-transform:uppercase;border-radius:6px;padding:4px 10px;font-size:11px;font-weight:700;position:absolute;top:12px;left:12px}.video-badge-before{color:var(--text);border:1px solid var(--border);background-color:#0e1116d9}.video-badge-after{color:var(--accent);background-color:#4fe3c133;border:1px solid #4fe3c180}.video-playback-sync-bar{background-color:var(--surface2);border:1px solid var(--border);border-radius:12px;justify-content:center;align-items:center;gap:12px;margin:16px 0;padding:12px 18px;display:flex}.btn-sync-play{background-color:var(--accent);color:#0e1116;font-family:var(--font);cursor:pointer;border:none;border-radius:8px;align-items:center;gap:6px;min-height:38px;padding:8px 16px;font-size:13px;font-weight:700;transition:opacity .2s;display:inline-flex}.btn-sync-play:hover{opacity:.9}.sync-time-label{color:var(--muted);font-variant-numeric:tabular-nums;font-size:13px}.video-result-actions{flex-direction:column;gap:12px;margin-top:16px;display:flex}@media (width>=600px){.video-result-actions{flex-direction:row}}.btn-download-video{background-color:var(--accent);color:#0e1116;min-height:50px;font-family:var(--font);cursor:pointer;border:none;border-radius:12px;flex:2;justify-content:center;align-items:center;gap:8px;font-size:15px;font-weight:700;transition:opacity .2s,transform .1s;display:inline-flex;box-shadow:0 4px 16px #4fe3c133}.btn-download-video:hover{opacity:.92}.btn-download-video:active{transform:scale(.99)}.btn-reset-video{min-height:50px;color:var(--text);border:1px solid var(--dash);font-family:var(--font);cursor:pointer;background-color:#0000;border-radius:12px;flex:1;justify-content:center;align-items:center;gap:8px;font-size:14px;font-weight:600;transition:all .2s;display:inline-flex}.btn-reset-video:hover{border-color:var(--accent);background-color:#4fe3c114}.debug-toggle-wrap{justify-content:center;align-items:center;margin-top:14px;margin-bottom:6px;display:flex}.debug-toggle-btn{font-family:var(--font);color:var(--muted);cursor:pointer;-webkit-user-select:none;user-select:none;background:0 0;border:1px solid #9aa4b240;border-radius:999px;align-items:center;gap:8px;padding:6px 14px;font-size:13px;transition:all .2s;display:inline-flex}.debug-toggle-btn:hover{border-color:var(--accent);color:var(--text);background-color:#ffffff08}.debug-toggle-btn.is-active{color:#4ade80;background-color:#22c55e1f;border-color:#22c55e}.debug-indicator-dot{background-color:var(--dash);border-radius:50%;width:8px;height:8px;transition:all .2s}.debug-toggle-btn.is-active .debug-indicator-dot{background-color:#22c55e;box-shadow:0 0 8px #22c55e}.debug-overlay-canvas{pointer-events:none;z-index:35;width:100%;height:100%;position:absolute;top:0;left:0}.watermark-status-notice{text-align:center;border-radius:10px;justify-content:center;align-items:center;padding:10px 14px;font-size:13px;font-weight:500;transition:all .2s;display:flex}.watermark-status-notice.is-detected{color:var(--accent);background-color:#4fe3c11a;border:1px solid #4fe3c159}.watermark-status-notice.is-not-found{color:#fbbf24;background-color:#f59e0b1a;border:1px solid #f59e0b59}.resolution-badge{letter-spacing:.02em;color:#e8ecf1;background-color:var(--surface2);border:1px solid var(--border);text-align:center;border-radius:8px;justify-content:center;align-items:center;gap:8px;margin:2px auto 0;padding:6px 14px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-size:12px;font-weight:500;display:inline-flex;box-shadow:0 1px 3px #0003}