*{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary: #fafafa;--bg-secondary: #ffffff;--text-primary: #333;--text-secondary: #666;--text-tertiary: #999;--border-color: #e0e0e0;--border-color-light: #ddd;--input-bg: #ffffff;--input-border: #ddd;--input-border-focus: #666;--button-bg: #333;--button-bg-hover: #555;--button-bg-secondary: #f5f5f5;--button-bg-secondary-hover: #e8e8e8;--button-bg-disabled: #ccc;--delete-hover: #e53935;--shadow: rgba(0, 0, 0, .1)}@media(prefers-color-scheme:dark){:root{--bg-primary: #1a1a1a;--bg-secondary: #2d2d2d;--text-primary: #e0e0e0;--text-secondary: #b0b0b0;--text-tertiary: #808080;--border-color: #404040;--border-color-light: #4a4a4a;--input-bg: #2d2d2d;--input-border: #4a4a4a;--input-border-focus: #666;--button-bg: #505050;--button-bg-hover: #606060;--button-bg-secondary: #3a3a3a;--button-bg-secondary-hover: #454545;--button-bg-disabled: #3a3a3a;--delete-hover: #ff5252;--shadow: rgba(0, 0, 0, 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ease}.jump-btn{color:var(--button-bg)}.jump-btn:hover{background:var(--button-bg-secondary);color:var(--button-bg-hover)}.edit-btn{color:var(--button-bg)}.delete-timecode-btn{color:var(--text-tertiary);font-size:1.2rem}.delete-timecode-btn:hover{background:var(--button-bg-secondary);color:var(--delete-hover)}.save-btn{color:#4caf50;font-size:1.1rem;font-weight:700}.save-btn:hover{background:#4caf501a}.cancel-btn{color:var(--text-tertiary);font-size:1.1rem;font-weight:700}.react-pdf__Page{background:#fff!important;box-shadow:0 2px 8px #0000001a;border-radius:4px}.dictionary-panel{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:8px;padding:16px;margin-bottom:24px;transition:background-color .3s ease,border-color .3s ease}.dictionary-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.dictionary-header 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ease}.edit-btn{color:var(--button-bg);font-size:1.1rem}.edit-btn:hover{background:var(--button-bg-secondary);color:var(--button-bg-hover)}.delete-word-btn{color:var(--text-tertiary);font-size:1.2rem}.delete-word-btn:hover{background:var(--button-bg-secondary);color:var(--delete-hover)}.save-btn{color:#28a745;font-size:1.2rem}.save-btn:hover{background:var(--button-bg-secondary)}.cancel-btn{color:var(--text-tertiary);font-size:1.2rem}.cancel-btn:hover{background:var(--button-bg-secondary);color:var(--delete-hover)}.dictionary-empty{text-align:center;color:var(--text-tertiary);padding:20px;font-size:.9rem}.add-to-dictionary-btn{padding:10px 16px;background:var(--button-bg);color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:.85rem;white-space:nowrap;transition:background-color .2s ease}.add-to-dictionary-btn:hover{background:var(--button-bg-hover)}