#douyin-app{--bg-primary: #ffffff;--bg-secondary: #f9fafb;--bg-tertiary: #f3f4f6;--bg-card: #ffffff;--text-primary: #111827;--text-secondary: #4b5563;--text-tertiary: #9ca3af;--text-inverse: #ffffff;--border-color: #e5e7eb;--border-subtle: #f3f4f6;--accent: #e11d48;--accent-hover: #be123c;--accent-light: rgba(225, 29, 72, .08);--success: #059669;--success-light: rgba(5, 150, 105, .1);--error: #dc2626;--error-light: rgba(220, 38, 38, .06);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 12px rgba(0, 0, 0, .06);--shadow-lg: 0 8px 30px rgba(0, 0, 0, .08);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px}#douyin-app[data-theme=dark]{--bg-primary: #09090b;--bg-secondary: #111113;--bg-tertiary: #18181b;--bg-card: #141416;--text-primary: #fafafa;--text-secondary: #a1a1aa;--text-tertiary: #71717a;--text-inverse: #09090b;--border-color: #27272a;--border-subtle: #1c1c1f;--accent-light: rgba(225, 29, 72, .12);--success-light: rgba(5, 150, 105, .12);--error-light: rgba(220, 38, 38, .1);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .2);--shadow-md: 0 4px 12px rgba(0, 0, 0, .3);--shadow-lg: 0 8px 30px rgba(0, 0, 0, .4)}#douyin-app *,#douyin-app *:before,#douyin-app *:after{margin:0;padding:0;box-sizing:border-box}#douyin-app{position:relative;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:-apple-system,BlinkMacSystemFont,SF Pro Display,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans SC,sans-serif;background:var(--bg-secondary);color:var(--text-primary);line-height:1.6;transition:background-color .3s ease,color .3s ease;min-height:100vh}#douyin-app .container{max-width:560px;margin:0 auto;padding:60px 24px 40px}#douyin-app .header{text-align:center;margin-bottom:44px}#douyin-app .logo{font-size:26px;font-weight:700;letter-spacing:-.5px;color:var(--text-primary)}#douyin-app .subtitle{margin-top:8px;font-size:14px;color:var(--text-tertiary);font-weight:400}#douyin-app .input-section{margin-bottom:20px}#douyin-app .input-wrapper{display:flex;flex-direction:column;gap:12px}#douyin-app .btn-row{display:flex;gap:12px}#douyin-app textarea{width:100%;padding:16px 18px;border:1px solid var(--border-color);border-radius:var(--radius-md);background:var(--bg-card);color:var(--text-primary);font-size:14.5px;resize:vertical;outline:none;font-family:inherit;line-height:1.6;transition:border-color .2s ease,box-shadow .2s ease;box-shadow:var(--shadow-sm)}#douyin-app .textarea-box{position:relative}#douyin-app .btn-paste{background:var(--bg-tertiary);color:var(--text-secondary);border:1px solid var(--border-color);flex:1;padding:13px 20px}#douyin-app .btn-paste:hover{background:var(--border-color);color:var(--text-primary)}#douyin-app .btn-row .btn-primary{width:auto;flex:1}#douyin-app textarea::placeholder{color:var(--text-tertiary)}#douyin-app textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-light),var(--shadow-sm)}#douyin-app .btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:13px 26px;border:none;border-radius:var(--radius-md);font-size:14.5px;font-weight:600;cursor:pointer;transition:all .18s ease;font-family:inherit;text-decoration:none;white-space:nowrap;letter-spacing:0}#douyin-app .btn-primary{background:var(--accent);color:#fff;width:100%;box-shadow:0 2px 8px #e11d4840}#douyin-app .btn-primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 16px #e11d4859}#douyin-app .btn-primary:active:not(:disabled){transform:translateY(0)}#douyin-app .btn-primary:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}#douyin-app .btn-download{background:var(--text-primary);color:var(--text-inverse);flex:1;box-shadow:var(--shadow-md)}#douyin-app .btn-download:hover{opacity:.9;transform:translateY(-1px);box-shadow:var(--shadow-lg)}#douyin-app[data-theme=dark] .btn-download{background:#e4e4e7;color:#09090b}#douyin-app .btn-secondary{background:var(--bg-tertiary);color:var(--text-secondary);border:1px solid var(--border-color)}#douyin-app .btn-secondary:hover{background:var(--border-color);color:var(--text-primary)}#douyin-app .btn-ghost{background:transparent;color:var(--text-tertiary);padding:13px 18px}#douyin-app .btn-ghost:hover{color:var(--text-primary);background:var(--bg-tertiary)}#douyin-app .btn-copy-mini{background:transparent;border:1px solid var(--border-color);color:var(--text-tertiary);width:32px;height:32px;border-radius:var(--radius-sm);cursor:pointer;font-size:14px;flex-shrink:0;transition:all .18s ease}#douyin-app .btn-copy-mini:hover{background:var(--bg-tertiary);color:var(--text-primary);border-color:var(--text-tertiary)}#douyin-app .loading{display:flex;align-items:center;justify-content:center;gap:12px;padding:36px;color:var(--text-tertiary);font-size:14px}#douyin-app .spinner{width:20px;height:20px;border:2px solid var(--border-color);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}#douyin-app .result-section{animation:fadeUp .3s ease-out}@keyframes fadeUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}#douyin-app .result-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md)}#douyin-app .video-preview{position:relative;width:100%;height:480px;background:#141414;overflow:hidden}#douyin-app .video-preview video{width:100%;height:100%;object-fit:contain}#douyin-app .preview-overlay{position:absolute;top:0;left:0;right:0;bottom:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#00000040;cursor:pointer;transition:opacity .25s ease;z-index:2}#douyin-app .preview-overlay.hidden{opacity:0;pointer-events:none}#douyin-app .play-icon-svg{filter:drop-shadow(0 2px 8px rgba(0,0,0,.4));margin-bottom:6px}#douyin-app .preview-hint{font-size:13.5px;color:#ffffffd9;font-weight:500;letter-spacing:.2px}#douyin-app .author-bar{display:flex;align-items:center;gap:12px;padding:16px 24px;border-bottom:1px solid var(--border-subtle)}#douyin-app .author-avatar{width:40px;height:40px;border-radius:50%;object-fit:cover;background:var(--bg-tertiary);flex-shrink:0}#douyin-app .author-info{display:flex;flex-direction:column;gap:2px;min-width:0}#douyin-app .author-name{font-size:14px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}#douyin-app .create-time{font-size:12px;color:var(--text-tertiary)}#douyin-app .result-body{padding:22px 24px}#douyin-app .info-row{margin-bottom:18px}#douyin-app .info-row:last-child{margin-bottom:0}#douyin-app .info-row label{display:block;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.8px;color:var(--text-tertiary);margin-bottom:5px}#douyin-app .info-value{font-size:14px;color:var(--text-primary);word-break:break-all;line-height:1.65}#douyin-app .mono{font-family:SF Mono,Cascadia Code,Fira Code,Consolas,monospace;font-size:13px}#douyin-app .result-actions{display:flex;gap:10px;padding:18px 24px;border-top:1px solid var(--border-subtle);flex-wrap:wrap}#douyin-app .download-progress{padding:18px 24px;border-top:1px solid var(--border-subtle)}#douyin-app .progress-bar{width:100%;height:6px;background:var(--bg-tertiary);border-radius:3px;overflow:hidden}#douyin-app .progress-fill{height:100%;background:var(--success);border-radius:3px;transition:width .25s ease;width:0%}#douyin-app .progress-text{margin-top:8px;font-size:12px;color:var(--text-tertiary);text-align:center}#douyin-app .error-card{text-align:center;padding:44px 28px;background:var(--error-light);border:1px solid var(--border-color);border-radius:var(--radius-lg)}#douyin-app .error-card p{color:var(--error);margin-bottom:20px;font-size:14px;line-height:1.6}#douyin-app .history-section{margin-top:28px;animation:fadeUp .3s ease-out}#douyin-app .history-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;padding:0 2px}#douyin-app .history-header h3{font-size:13px;font-weight:600;color:var(--text-tertiary);letter-spacing:.3px}#douyin-app .btn-clear{background:transparent;border:none;color:var(--text-tertiary);font-size:12px;cursor:pointer;padding:4px 10px;border-radius:6px;transition:all .18s ease;font-family:inherit;font-weight:500}#douyin-app .btn-clear:hover{color:var(--accent);background:var(--accent-light)}#douyin-app .history-list{display:flex;flex-direction:column;gap:8px}#douyin-app .history-item{display:flex;align-items:center;gap:12px;padding:13px 16px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;transition:all .18s ease;text-decoration:none;color:inherit}#douyin-app .history-item:hover{border-color:var(--text-tertiary);box-shadow:var(--shadow-sm)}#douyin-app .history-item-thumb{width:40px;height:54px;border-radius:6px;background:var(--bg-tertiary);flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--text-tertiary);overflow:hidden}#douyin-app .history-cover{width:100%;height:100%;object-fit:cover}#douyin-app .history-item-info{flex:1;min-width:0}#douyin-app .history-item-title{font-size:13px;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:2px;font-weight:500}#douyin-app .history-item-time{font-size:11.5px;color:var(--text-tertiary)}#douyin-app .history-item-action{background:transparent;border:none;color:var(--text-tertiary);cursor:pointer;font-size:15px;padding:4px 8px;border-radius:6px;transition:all .18s ease}#douyin-app .history-item-action:hover{color:var(--accent);background:var(--accent-light)}#douyin-app .badge{display:inline-block;padding:4px 11px;border-radius:20px;font-size:11.5px;font-weight:600;letter-spacing:.3px}#douyin-app .badge-success{background:var(--success-light);color:var(--success)}#douyin-app .footer{text-align:center;margin-top:44px;font-size:12px;color:var(--text-tertiary);letter-spacing:.2px}#douyin-app .toast{position:fixed;bottom:28px;left:50%;transform:translate(-50%) translateY(16px);padding:11px 22px;border-radius:var(--radius-md);font-size:13.5px;font-weight:500;color:#fff;z-index:999;opacity:0;transition:all .25s ease;pointer-events:none;box-shadow:var(--shadow-lg)}#douyin-app .toast.show{transform:translate(-50%) translateY(0);opacity:1}#douyin-app .toast-success{background:var(--success)}#douyin-app .toast-error{background:var(--accent)}@keyframes shake-55bfdd4e{0%,to{transform:translate(0)}20%{transform:translate(-8px)}40%{transform:translate(8px)}60%{transform:translate(-6px)}80%{transform:translate(6px)}}.back-home[data-v-55bfdd4e]{position:absolute;top:16px;left:16px;display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:20px;font-size:13px;font-weight:500;cursor:pointer;text-decoration:none;transition:all .18s ease;background:var(--bg-card);color:var(--text-secondary);border:1px solid var(--border-color);font-family:inherit;z-index:10}.back-home[data-v-55bfdd4e]:hover{color:var(--text-primary);border-color:var(--text-tertiary);box-shadow:var(--shadow-sm)}.toast-enter-active[data-v-55bfdd4e],.toast-leave-active[data-v-55bfdd4e]{transition:all .25s ease}.toast-enter-from[data-v-55bfdd4e],.toast-leave-to[data-v-55bfdd4e]{opacity:0;transform:translate(-50%) translateY(16px)}.toast-enter-to[data-v-55bfdd4e],.toast-leave-from[data-v-55bfdd4e]{opacity:1;transform:translate(-50%) translateY(0)}html,body{margin:0;padding:0}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:-apple-system,BlinkMacSystemFont,SF Pro Display,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans SC,sans-serif;background:#f9fafb}*,*:before,*:after{box-sizing:border-box}