.tool-header{text-align:center;margin-bottom:40px}.header-badge{display:flex;justify-content:center;gap:12px;margin-bottom:24px;flex-wrap:wrap}.badge{background:linear-gradient(135deg, #667eea 0, #764ba2 100%);color:white;padding:6px 18px;border-radius:40px;font-size:0.75rem;font-weight:500;box-shadow:0 2px 8px rgba(0,0,0,0.1)}.tool-header h1{font-size:2.2rem;font-weight:800;background:linear-gradient(135deg, #1e293b, #3b82f6);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:12px}.tool-header p{color:var(--gray-500);font-size:1rem}.subtitle-container{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:24px}.upload-card{background:linear-gradient(135deg, #fff, #f8fafc);border-radius:24px;padding:20px;margin-bottom:24px;border:1px solid var(--gray-200)}.upload-area{border:2px dashed var(--gray-300);border-radius:20px;padding:40px 20px;text-align:center;cursor:pointer;transition:all 0.3s}.upload-area:hover{border-color:var(--primary-color);background:var(--gray-50)}.upload-area i{font-size:48px;color:var(--gray-400);margin-bottom:12px}.upload-hint{font-size:0.7rem;color:var(--gray-400);display:block;margin:8px 0}.video-preview{margin-top:16px}.video-player{width:100%;border-radius:16px;max-height:250px}.video-info{display:flex;gap:16px;margin-top:12px;font-size:0.7rem;color:var(--gray-500);justify-content:center}.settings-card{background:linear-gradient(135deg, #fff, #f8fafc);border-radius:24px;padding:20px;border:1px solid var(--gray-200)}.settings-header{display:flex;align-items:center;gap:10px;margin-bottom:20px;padding-bottom:12px;border-bottom:1px solid var(--gray-200);font-weight:600}.settings-grid{display:grid;grid-template-columns:repeat(2, 1fr);gap:16px}.setting-item{display:flex;flex-direction:column;gap:6px}.setting-item label{font-size:0.7rem;font-weight:500;color:var(--gray-600);display:flex;align-items:center;gap:6px}.setting-select,.setting-item input[type="number"]{padding:8px 12px;border:1px solid var(--gray-200);border-radius:12px;font-size:0.8rem}.setting-item input[type="color"]{width:100%;height:36px;border:1px solid var(--gray-200);border-radius:12px;cursor:pointer}.setting-item input[type="range"]{flex:1}.subtitle-card{background:linear-gradient(135deg, #fff, #f8fafc);border-radius:24px;padding:20px;margin-bottom:24px;border:1px solid var(--gray-200)}.subtitle-header{display:flex;align-items:center;gap:10px;margin-bottom:20px;padding-bottom:12px;border-bottom:1px solid var(--gray-200);font-weight:600}.subtitle-actions{margin-left:auto;display:flex;gap:8px}.subtitle-list{max-height:300px;overflow-y:auto}.subtitle-item{background:var(--gray-50);border-radius:16px;padding:12px;margin-bottom:10px;transition:all 0.2s}.subtitle-item:hover{background:var(--gray-100);transform:translateX(4px)}.subtitle-time{display:flex;gap:8px;margin-bottom:8px}.subtitle-time input{width:70px;padding:4px 8px;border:1px solid var(--gray-200);border-radius:8px;font-size:0.7rem;font-family:monospace}.subtitle-text{width:calc(60%);padding:8px;border:1px solid var(--gray-200);border-radius:10px;font-size:0.8rem;resize:vertical}.subtitle-actions-item{float:right;display:flex;gap:6px}.subtitle-actions-item button{background:transparent;border:none;cursor:pointer;color:var(--gray-500);padding:4px}.empty-subtitle{text-align:center;padding:40px;color:var(--gray-400)}.empty-subtitle i{font-size:48px;margin-bottom:12px}.preview-card{background:linear-gradient(135deg, #fff, #f8fafc);border-radius:24px;padding:20px;border:1px solid var(--gray-200)}.preview-header{display:flex;align-items:center;gap:12px;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--gray-200);font-weight:600;flex-wrap:wrap}.export-btn{margin-left:auto;background:linear-gradient(135deg, #10b981, #059669)}.preview-canvas-container{position:relative;background:#1a1a2e;border-radius:16px;overflow:hidden;aspect-ratio:1.77777778;display:flex;align-items:center;justify-content:center}.preview-canvas{width:100%;height:auto;background:#000}.preview-overlay{position:absolute;bottom:0;left:0;right:0;text-align:center;pointer-events:none}.preview-subtitle{display:inline-block;padding:8px 16px;border-radius:8px;font-size:24px;max-width:90%;word-break:break-word;box-shadow:0 2px 8px rgba(0,0,0,0.2)}.preview-controls{margin-top:12px;display:flex;align-items:center;gap:12px}.preview-controls input{flex:1}.preview-controls{margin-top:12px;display:flex;align-items:center;gap:12px}.preview-controls input{flex:1;height:4px;border-radius:2px}#currentTime{font-size:0.7rem;font-family:monospace;color:var(--gray-500);min-width:60px}.copy-time-btn{background:var(--gray-100);border:none;padding:4px 10px;border-radius:20px;font-size:0.7rem;cursor:pointer}.copy-time-btn:hover{background:var(--primary-color);color:white}@media (max-width:1024px){.subtitle-container{grid-template-columns:1fr}.settings-grid{grid-template-columns:repeat(2, 1fr)}}@media (max-width:768px){.settings-grid{grid-template-columns:1fr}.subtitle-header{flex-wrap:wrap}.subtitle-actions{margin-left:0}}