:root{--bg-main: #ffffff;--sidebar-bg: #f8fafc;--border-color: #e2e8f0;--text-main: #1f2937;--text-muted: #6b7280;--primary: #4f46e5;--gemini-blue: #1a73e8;--gemini-gradient: linear-gradient(135deg, #4285f4, #9b51e0, #e91e63);--user-msg-bg: #f1f5f9}*{box-sizing:border-box;margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,PingFang SC,Microsoft YaHei,sans-serif}body{background-color:var(--bg-main);color:var(--text-main);display:flex;height:100vh;overflow:hidden;scrollbar-width:thin;scrollbar-color:#cbd5e1 transparent}#root{display:flex;width:100%;height:100%}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track,::-webkit-scrollbar-corner{background:transparent}::-webkit-scrollbar-thumb{background-color:#cbd5e1;background-clip:content-box;border:2px solid transparent;border-radius:999px}::-webkit-scrollbar-thumb:hover{background-color:#94a3b8}.sidebar{width:260px;background-color:var(--sidebar-bg);border-right:1px solid var(--border-color);display:flex;flex-direction:column;padding:16px;flex-shrink:0;transition:width .25s ease,padding .25s ease;position:relative}.sidebar.collapsed{width:68px;padding:16px 8px}.sidebar-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.sidebar.collapsed .sidebar-header{flex-direction:column;gap:8px;justify-content:flex-start}.brand{display:flex;align-items:center;gap:10px;overflow:hidden}.brand-logo{width:36px;height:36px;object-fit:contain;flex-shrink:0}.brand-title{font-weight:600;font-size:16px;color:var(--text-main);white-space:nowrap}.btn-toggle-sidebar{background:transparent;border:none;border-radius:6px;padding:6px;cursor:pointer;color:var(--text-muted);display:flex;align-items:center;justify-content:center}.btn-toggle-sidebar:hover{background:#e2e8f0;color:var(--text-main)}.sidebar-footer{margin-top:auto;padding-top:12px;border-top:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;gap:8px}.sidebar.collapsed .sidebar-footer{flex-direction:column;justify-content:center;gap:10px}.lang-switch{display:flex;align-items:center;gap:2px;padding:2px;background:#e9edf3;border-radius:999px;flex-shrink:0}.lang-switch-btn{border:none;background:transparent;color:var(--text-muted);font-size:12px;font-weight:600;line-height:1;padding:5px 10px;border-radius:999px;cursor:pointer;white-space:nowrap;transition:background .15s,color .15s}.lang-switch-btn:hover{color:var(--text-main)}.lang-switch-btn.active{background:#fff;color:var(--text-main);box-shadow:0 1px 3px #00000014}.sidebar.collapsed .lang-switch{flex-direction:column;align-self:center}.user-area{position:relative;min-width:0;flex:1;display:flex;align-items:center}.sidebar.collapsed .user-area{flex:none}.btn-user-login{display:flex;align-items:center;gap:8px;padding:8px 16px;background:var(--primary);border:1px solid var(--primary);border-radius:999px;color:#fff;font-size:13px;font-weight:600;cursor:pointer;white-space:nowrap;overflow:hidden;box-shadow:0 1px 3px #4f46e54d;transition:background .15s,border-color .15s,box-shadow .15s}.btn-user-login:hover{background:#4338ca;border-color:#4338ca;box-shadow:0 2px 8px #4f46e566}.user-trigger{display:flex;align-items:center;gap:8px;padding:5px 10px;background:transparent;border:none;border-radius:999px;color:var(--text-main);font-size:13px;cursor:pointer;min-width:0;transition:background .15s}.user-trigger:hover{background:#e9edf3}.user-avatar{width:28px;height:28px;border-radius:50%;object-fit:cover;flex-shrink:0;background:#e9edf3}.user-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user-menu{position:absolute;left:0;bottom:calc(100% + 8px);min-width:148px;padding:4px;background:#fff;border:1px solid var(--border-color);border-radius:10px;box-shadow:0 8px 24px #0f172a1f;display:flex;flex-direction:column;z-index:20}.user-menu-item{text-align:left;padding:8px 10px;background:transparent;border:none;border-radius:6px;color:var(--text-main);font-size:13px;cursor:pointer;white-space:nowrap;transition:background .15s}.user-menu-item:hover{background:#f1f5f9}.sidebar.collapsed .user-name{display:none}.sidebar.collapsed .user-trigger{padding:4px}.sidebar.collapsed .btn-user-login{width:36px;height:36px;padding:0;justify-content:center}.sidebar.collapsed .btn-user-login span{display:none}.auth-modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a73;display:flex;align-items:center;justify-content:center;padding:24px;z-index:100}.auth-modal{width:100%;max-width:480px;box-sizing:border-box;background:#fff;border-radius:16px;padding:24px;box-shadow:0 20px 50px #0f172a40}.agreement-dialog{width:100%;max-width:560px;max-height:70vh;box-sizing:border-box;background:#fff;border-radius:16px;padding:24px;box-shadow:0 20px 50px #0f172a40;display:flex;flex-direction:column}.auth-modal-title{font-size:18px;font-weight:600;color:var(--text-main);margin-bottom:6px}.auth-modal-subtitle{font-size:13px;color:var(--text-muted);margin-bottom:18px}.auth-tabs{display:flex;gap:4px;padding:4px;margin-bottom:16px;background:var(--sidebar-bg);border-radius:10px}.auth-tab{flex:1;padding:8px 0;border:none;border-radius:8px;background:transparent;color:var(--text-muted);font-size:13px;font-weight:500;cursor:pointer;transition:background .15s,color .15s}.auth-tab:hover{color:var(--text-main)}.auth-tab.active{background:#fff;color:var(--primary);box-shadow:0 1px 3px #0f172a1f}.auth-text-btn{align-self:flex-start;border:none;background:transparent;padding:0;color:var(--primary);font-size:12px;cursor:pointer}.auth-text-btn:hover{text-decoration:underline}.auth-success{padding:12px;margin-bottom:14px;background:#f0fdf4;border-radius:8px;color:#15803d;font-size:13px;line-height:1.6}.auth-success-title{font-size:14px;font-weight:600;margin-bottom:4px}.auth-dev-link{display:inline-block;margin-bottom:14px;color:var(--primary);font-size:12px;word-break:break-all}.auth-page{flex:1;display:flex;align-items:center;justify-content:center;padding:24px;background:var(--sidebar-bg)}.auth-page-card{width:100%;max-width:480px;box-sizing:border-box;background:#fff;border-radius:16px;padding:24px;box-shadow:0 20px 50px #0f172a26}.auth-field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.auth-field-label{font-size:13px;font-weight:500;color:var(--text-main)}.auth-input{width:100%;box-sizing:border-box;padding:10px 12px;border:1px solid var(--border-color);border-radius:10px;font-size:14px;color:var(--text-main);background:#fff;outline:none;transition:border-color .15s,box-shadow .15s}.auth-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #4f46e51f}.auth-field-row{display:flex;align-items:center;gap:8px}.auth-field-row .auth-input{flex:1;min-width:0}.auth-code-btn{flex-shrink:0;padding:10px 14px;border:1px solid var(--border-color);border-radius:10px;background:#fff;color:var(--primary);font-size:13px;font-weight:500;cursor:pointer;white-space:nowrap;transition:background .15s,border-color .15s}.auth-code-btn:hover:not(:disabled){background:#f1f5f9;border-color:#cbd5e1}.auth-code-btn:disabled{color:var(--text-muted);cursor:not-allowed}.auth-hint{font-size:12px;color:var(--text-muted)}.auth-agree{display:flex;flex-wrap:wrap;align-items:center;gap:2px;margin:4px 0 14px;font-size:12px;color:var(--text-muted);line-height:1.6}.auth-agree-check{display:flex;align-items:center;gap:6px;cursor:pointer}.auth-agree-check input{accent-color:var(--primary);cursor:pointer}.auth-agree-item{display:inline-flex;align-items:center;gap:2px}.auth-agree-link{border:none;background:transparent;padding:0;color:var(--primary);font-size:12px;cursor:pointer}.auth-agree-link:hover{text-decoration:underline}.auth-error{padding:8px 12px;margin-bottom:14px;background:#fef2f2;border-radius:8px;color:#dc2626;font-size:13px}.auth-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:6px}.auth-cancel{padding:10px 18px;border:1px solid var(--border-color);border-radius:999px;background:#fff;color:var(--text-main);font-size:14px;cursor:pointer;transition:background .15s}.auth-cancel:hover{background:#f1f5f9}.auth-submit{padding:10px 22px;border:none;border-radius:999px;background:var(--primary);color:#fff;font-size:14px;font-weight:500;cursor:pointer;transition:background .15s,opacity .15s}.auth-submit:hover:not(:disabled){background:#4338ca}.auth-submit:disabled{opacity:.5;cursor:not-allowed}.agreement-body{overflow-y:auto;font-size:13px;color:var(--text-main);line-height:1.7;margin-bottom:18px}.agreement-body p{margin-bottom:12px}.btn-new-task{background:#fff;border:1px solid var(--border-color);color:var(--text-main);padding:10px 14px;border-radius:20px;font-weight:500;font-size:13px;cursor:pointer;display:flex;align-items:center;justify-content:flex-start;gap:10px;transition:all .2s;margin-bottom:16px;white-space:nowrap;overflow:hidden;box-shadow:0 1px 3px #0000000d}.btn-new-task:hover{background:#f1f5f9;border-color:#cbd5e1}.history-title{font-size:11px;font-weight:600;color:var(--text-muted);padding:0 8px 6px;text-transform:uppercase;white-space:nowrap;overflow:hidden}.history-list{display:flex;flex-direction:column;gap:2px;overflow-y:auto;flex:1;min-height:0;scrollbar-color:transparent transparent}.history-list:hover{scrollbar-color:#cbd5e1 transparent}.history-list::-webkit-scrollbar-thumb{background-color:transparent;transition:background-color .15s}.history-list:hover::-webkit-scrollbar-thumb{background-color:#cbd5e1}.history-list::-webkit-scrollbar-thumb:hover{background-color:#94a3b8}.history-item{flex-shrink:0;position:relative;padding:8px 12px;border-radius:20px;font-size:13px;color:var(--text-main);cursor:pointer;display:flex;align-items:center;gap:10px;transition:background .15s;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.history-item:hover,.history-item.active{background:#e2e8f0;font-weight:500}.history-item svg{flex-shrink:0;color:var(--text-muted)}.history-label{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.history-actions{position:absolute;top:50%;right:6px;transform:translateY(-50%);display:flex;align-items:center;gap:2px;padding:0 2px 0 8px;border-radius:14px;background:#e2e8f0;opacity:0;transition:opacity .15s}.history-item:hover .history-actions{opacity:1}.btn-rename-task,.btn-copy-task,.btn-delete-task{flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border:none;border-radius:6px;background:transparent;color:var(--text-muted);cursor:pointer;transition:background .15s,color .15s}.btn-rename-task:hover,.btn-copy-task:hover{background:#cbd5e1;color:var(--text-main)}.btn-delete-task:hover,.btn-delete-task:hover svg{background:#fee2e2;color:#dc2626}.btn-delete-task:hover svg{background:transparent}.btn-delete-task:disabled,.btn-delete-task:disabled:hover,.btn-delete-task:disabled svg{cursor:not-allowed;background:transparent;color:#cbd5e1}.history-rename-input{flex:1;min-width:0;height:24px;padding:0 8px;border:1px solid var(--border-color);border-radius:6px;font-size:13px;color:var(--text-main);background:#fff;outline:none}.sidebar.collapsed .brand-title,.sidebar.collapsed .history-title,.sidebar.collapsed .history-list,.sidebar.collapsed .btn-new-task span,.sidebar.collapsed .btn-rename-task,.sidebar.collapsed .history-item span{display:none}.main-container{flex:1;display:flex;flex-direction:column;background:var(--bg-main);height:100vh;overflow:hidden;position:relative}.top-bar{height:56px;display:flex;align-items:center;justify-content:space-between;padding:0 24px;font-size:14px;font-weight:500;flex-shrink:0}.home-view{flex:1;overflow-y:auto;padding:20px max(24px,calc((100% - 820px)/2)) 40px;display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%}.slogan-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 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#0f172a14}.desc-textarea{width:100%;border:none;background:transparent;outline:none;resize:none;height:64px;font-size:14px;color:var(--text-main);line-height:1.5;margin-bottom:12px}.attach-row{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-bottom:12px;font-size:12px}.attach-btn{display:inline-flex;align-items:center;gap:5px;background:#fff;border:1px solid var(--border-color);border-radius:16px;padding:4px 12px;font-size:12px;color:var(--text-muted);cursor:pointer;transition:border-color .2s,color .2s}.attach-btn:hover{border-color:var(--primary);color:var(--primary)}.attach-chip{display:inline-flex;align-items:center;gap:5px;max-width:320px;background:#eef2ff;border:1px solid #c7d2fe;border-radius:16px;padding:4px 12px;font-size:12px;color:var(--primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.attach-clear{background:transparent;border:none;padding:0;font-size:12px;color:var(--text-muted);cursor:pointer;text-decoration:underline}.attach-clear:hover{color:#ef4444}.attach-hint{color:#94a3b8}.config-options-row{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}.select-pills{display:flex;gap:8px;flex-wrap:wrap}.select-field{display:inline-flex;flex-direction:column;align-items:flex-start;gap:2px}.select-label{font-size:11px;line-height:1.2;color:#94a3b8;white-space:nowrap}.select-pill{background:#fff;border:1px solid var(--border-color);border-radius:16px;padding:4px 12px;font-size:12px;color:var(--text-muted);outline:none;cursor:pointer}.btn-send-circle{width:36px;height:36px;border-radius:50%;background:var(--primary);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s}.btn-send-circle:hover{background:#4338ca}.showcase-video-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;width:100%;max-width:820px;margin-top:12px}.showcase-video-card{position:relative;overflow:hidden;border:1px solid var(--border-color);border-radius:14px;background:#0b1020;aspect-ratio:16 / 9;cursor:pointer}.showcase-video-thumb{display:block;width:100%;height:100%;object-fit:cover;transition:transform .3s ease}.showcase-video-card:hover .showcase-video-thumb{transform:scale(1.04)}.showcase-video-title{position:absolute;left:0;right:0;bottom:0;padding:16px 10px 8px;font-size:12px;font-weight:600;color:#fff;background:linear-gradient(180deg,#070a1800,#070a18d1);z-index:2}.showcase-video-actions{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;gap:8px;background:#070a188c;opacity:0;transition:opacity .2s ease;z-index:1}.showcase-video-card:hover .showcase-video-actions{opacity:1}.showcase-video-btn{padding:6px 12px;border:none;border-radius:999px;background:#fff;color:#1e293b;font-size:12px;font-weight:600;cursor:pointer;transition:background .15s,color .15s}.showcase-video-btn:hover{background:var(--primary);color:#fff}.home-disclaimer{display:flex;align-items:flex-start;gap:8px;margin-top:24px;max-width:720px;padding:10px 14px;border:1px solid #fde68a;border-left:3px solid #f59e0b;border-radius:10px;background:#fffbeb;font-size:12.5px;line-height:1.6;color:#92400e;text-align:left}.home-disclaimer-icon{flex:none;margin-top:1px;color:#d97706}.home-footer{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:6px 12px;margin-top:14px;font-size:12px;color:var(--text-muted)}.home-icp{color:inherit;text-decoration:none;transition:color .15s}.home-icp:hover{color:var(--text-main);text-decoration:underline}.showcase-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a8c;display:flex;align-items:center;justify-content:center;padding:24px;z-index:110}.showcase-dialog{width:100%;max-width:960px;box-sizing:border-box;background:#fff;border-radius:16px;padding:20px;box-shadow:0 20px 50px #0f172a4d}.showcase-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:14px}.showcase-title{font-size:17px;font-weight:600;color:var(--text-main)}.showcase-subtitle{margin:4px 0 0;font-size:12.5px;color:var(--text-muted)}.showcase-close{flex:none;display:flex;align-items:center;justify-content:center;width:32px;height:32px;border:none;border-radius:8px;background:transparent;color:var(--text-muted);cursor:pointer;transition:background .15s,color .15s}.showcase-close:hover{background:#f1f5f9;color:var(--text-main)}.showcase-video{display:block;width:100%;aspect-ratio:16 / 9;border-radius:12px;background:#070a18}.chat-view{display:flex;flex:1;flex-direction:column;height:calc(100vh - 56px);overflow:hidden;position:relative}.chat-header{flex-shrink:0;height:52px;display:flex;align-items:center;gap:8px;padding:0 16px;border-bottom:1px solid var(--border-color);background:var(--bg-main);z-index:2}.chat-title{margin:0;font-size:16px;font-weight:700;color:var(--text-main);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.btn-edit-title{flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border:none;border-radius:8px;background:transparent;color:var(--text-muted);cursor:pointer;transition:background .15s,color .15s}.btn-edit-title:hover{background:#f1f5f9;color:var(--text-main)}.chat-title-input{flex:1;max-width:520px;height:32px;padding:0 12px;border:1px solid var(--border-color);border-radius:9px;font-size:16px;font-weight:700;color:var(--text-main);background:#f8fafc;outline:none}.chat-title-input:focus{border-color:#cbd5e1;background:#fff}.chat-stream{flex:1;overflow-y:auto;padding:20px max(24px,calc((100% - 820px)/2)) 120px;display:flex;flex-direction:column;gap:28px;width:100%}.chat-row-user{display:flex;justify-content:flex-end;width:100%}.chat-bubble-user{background:var(--user-msg-bg);color:var(--text-main);border-radius:20px 20px 4px;padding:12px 18px;max-width:85%;font-size:14px;line-height:1.6}.chat-bubble-user .user-url{font-weight:600;color:var(--gemini-blue);word-break:break-all;margin-bottom:4px}.chat-row-ai{display:flex;gap:16px;width:100%;align-items:flex-start}.ai-avatar{width:28px;height:28px;border-radius:50%;background:var(--gemini-gradient);flex-shrink:0;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:12px;margin-top:2px}.ai-content-body{flex:1;min-width:0;font-size:14px;line-height:1.6;color:var(--text-main)}.ai-pending{display:flex;align-items:center;min-height:22px}.ai-spinner{width:16px;height:16px;border:2px solid #dbe2ec;border-top-color:#94a3b8;border-radius:50%;animation:ai-spin .7s linear infinite}@keyframes ai-spin{to{transform:rotate(360deg)}}.step-list{display:flex;flex-direction:column;gap:6px;margin:12px 0 16px;background:#f8fafc;border-radius:12px;padding:12px 16px;border:1px solid var(--border-color)}.step-item{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-muted)}.step-item.completed{color:#059669}.step-item.active{color:var(--primary)}.step-item.pending{color:#94a3b8}.step-item.has-detail{align-items:flex-start}.step-item.has-detail .step-icon{margin-top:1px}.step-main{display:flex;flex-direction:column;gap:2px;min-width:0}.step-detail{font-size:12px;color:var(--text-muted);overflow-wrap:anywhere}.step-list-header{display:flex;align-items:center;gap:8px;width:100%;padding:0;border:none;background:transparent;font:inherit;text-align:left;cursor:pointer}.step-list-title{flex-shrink:0;font-size:13px;font-weight:600;color:var(--text-main)}.step-list-summary{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px;color:var(--text-muted)}.step-list-summary.done{color:#059669}.step-list-caret{flex-shrink:0;font-size:12px;color:var(--text-muted);transition:transform .2s ease}.step-list-caret.up{transform:rotate(180deg)}.step-list-body{display:flex;flex-direction:column;gap:6px;margin-top:4px}.step-icon{width:14px;height:14px;flex-shrink:0;border-radius:50%;background:#059669;color:#fff;display:flex;align-items:center;justify-content:center;font-size:9px}.step-item.active .step-icon{background:var(--primary)}.step-item.pending .step-icon{background:#cbd5e1}.video-container{border-radius:16px;overflow:hidden;border:1px solid var(--border-color);background:#000;margin-top:12px}.video-player{aspect-ratio:16/9;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;padding:20px;text-align:center}.chapters-bar{position:relative;background:#f8fafc;border-top:1px solid var(--border-color);padding:12px;display:flex;gap:8px;overflow-x:auto}.chapter-pill{padding:6px 12px;border-radius:12px;font-size:12px;background:#fff;border:1px solid var(--border-color);cursor:pointer;white-space:nowrap;color:var(--text-main)}.chapter-pill.active{border-color:var(--primary);background:#eef2ff;color:var(--primary);font-weight:500}.task-status-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.sidebar.collapsed .task-status-dot{display:none}.history-empty{padding:8px 12px;font-size:13px;color:var(--text-muted)}.progress-track{position:relative;height:4px;border-radius:2px;background:#e2e8f0;overflow:hidden}.progress-fill{height:100%;background:var(--primary);border-radius:2px;transition:width .4s ease}.progress-fill.indeterminate{width:40%;animation:progress-slide 1.4s ease-in-out infinite}.progress-sweep{position:absolute;top:0;bottom:0;overflow:hidden}.progress-sweep-bar{position:absolute;top:0;left:0;height:100%;width:40%;border-radius:2px;background:var(--primary);opacity:.45;animation:progress-slide 1.4s ease-in-out infinite}@keyframes progress-slide{0%{transform:translate(-100%)}to{transform:translate(250%)}}.task-error{font-size:13px;color:#dc2626}.task-warning{font-size:13px;color:#b45309}.demo-video{width:100%;height:100%;object-fit:contain;background:#000}.video-actions{display:flex;gap:10px;margin-top:12px}.action-btn{display:inline-flex;align-items:center;padding:8px 16px;border-radius:999px;border:1px solid var(--border-color);background:#fff;color:var(--text-main);font-size:13px;font-weight:500;line-height:1;text-decoration:none;cursor:pointer;transition:border-color .15s ease,color .15s ease,background .15s ease}.action-btn:hover{border-color:var(--primary);color:var(--primary)}.action-btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}.action-btn.primary:hover{background:#4338ca;border-color:#4338ca;color:#fff}.segment-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;background:#0f172a73;display:flex;align-items:center;justify-content:center;padding:24px}.segment-panel{width:min(980px,100%);max-height:100%;display:flex;flex-direction:column;background:#fff;border:1px solid var(--border-color);border-radius:16px;overflow:hidden;box-shadow:0 20px 50px #0f172a40}.segment-panel-header{display:flex;align-items:center;gap:10px;padding:16px 20px;border-bottom:1px solid var(--border-color)}.segment-panel-title{font-size:15px;font-weight:600;color:var(--text-main)}.segment-panel-sub{font-size:12px;color:var(--text-muted)}.segment-close{margin-left:auto;width:28px;height:28px;border:none;border-radius:50%;background:transparent;color:var(--text-muted);font-size:14px;cursor:pointer}.segment-close:hover{background:#f1f5f9;color:var(--text-main)}.segment-panel-body{flex:1;overflow-y:auto;padding:16px 20px 24px;display:flex;flex-direction:column;gap:16px}.segment-hint{padding:24px 0;text-align:center;font-size:13px;color:var(--text-muted)}.segment-hint.error{color:#dc2626}.segment-note{padding:8px 12px;border-radius:8px;background:#f1f5f9;font-size:12px;color:var(--text-muted)}.segment-item{display:flex;gap:16px;padding:12px;border:1px solid var(--border-color);border-radius:12px;background:#f8fafc}.segment-video-box{position:relative;flex:0 0 260px;aspect-ratio:16 / 9;border-radius:10px;overflow:hidden;background:#000;display:flex;align-items:center;justify-content:center}.segment-silent{position:absolute;top:8px;left:8px;padding:2px 8px;border-radius:999px;background:#0f172aad;color:#e2e8f0;font-size:12px;pointer-events:none}.segment-video{width:100%;height:100%;object-fit:contain}.segment-video-empty{font-size:12px;color:#94a3b8}.segment-meta{flex:1;min-width:0;display:flex;flex-direction:column;gap:8px}.segment-field{display:flex;align-items:baseline;gap:8px;min-width:0}.segment-field-label{flex:0 0 32px;font-size:12px;color:var(--text-muted)}.segment-meta-head{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px}.segment-no{font-weight:600;color:var(--text-main)}.segment-tag{padding:2px 8px;border-radius:999px;background:#eef2ff;color:var(--primary);font-size:12px}.segment-target{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px;color:var(--text-muted)}.segment-time{margin-left:auto;font-size:12px;color:var(--text-muted)}.segment-narration{flex:1;font-size:13px;line-height:1.6;color:var(--text-main);white-space:pre-wrap}.segment-error{flex:1;font-size:12px;color:#dc2626}@media (max-width: 720px){.segment-item{flex-direction:column}.segment-video-box{flex:0 0 auto;width:100%}}.chat-input-wrapper{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(to top,#fff 80%,#fff0);padding:12px 24px 24px;display:flex;justify-content:center}.gemini-bottom-card{max-width:820px;width:100%;background:#f8fafc;border:1px solid var(--border-color);border-radius:28px;padding:8px 12px 8px 20px;display:flex;align-items:center;gap:12px;box-shadow:0 4px 16px #0000000d;transition:all .2s}.gemini-bottom-card:focus-within{background:#fff;border-color:#cbd5e1;box-shadow:0 4px 20px #00000014}.gemini-bottom-input{flex:1;border:none;background:transparent;outline:none;font-size:14px;color:var(--text-main)}.feedback-card{flex-direction:column;align-items:stretch;gap:8px;padding:10px 12px 10px 20px;border-radius:22px}.feedback-card .gemini-bottom-input{flex:none;width:100%;padding:2px 0}.feedback-toolbar{display:flex;align-items:center;justify-content:space-between;gap:10px}.feedback-tools{display:flex;align-items:center;flex-wrap:wrap;gap:8px;min-width:0}.feedback-tools .attach-chip{min-width:0}.select-pill:disabled,.attach-btn:disabled{opacity:.55;cursor:not-allowed}.badge-tag{display:inline-block;background:#fff;border:1px solid var(--border-color);color:var(--text-muted);font-size:11px;padding:2px 8px;border-radius:10px;margin-top:6px;margin-right:4px}.dialog-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a73;display:flex;align-items:center;justify-content:center;padding:24px;z-index:200;animation:dialog-fade .16s ease-out}.dialog-card{width:100%;max-width:380px;box-sizing:border-box;background:#fff;border-radius:16px;padding:24px;box-shadow:0 20px 50px #0f172a40;display:flex;flex-direction:column;align-items:center;text-align:center;animation:dialog-pop .18s cubic-bezier(.16,1,.3,1)}@keyframes dialog-fade{0%{opacity:0}to{opacity:1}}@keyframes dialog-pop{0%{opacity:0;transform:translateY(8px) scale(.97)}to{opacity:1;transform:none}}.dialog-icon{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin-bottom:14px;background:#eef2ff;color:var(--primary)}.dialog-icon-danger{background:#fef2f2;color:#dc2626}.dialog-title{font-size:17px;font-weight:600;color:var(--text-main);margin-bottom:6px}.dialog-message{font-size:14px;color:var(--text-muted);line-height:1.65;margin-bottom:22px;word-break:break-word}.dialog-actions{display:flex;gap:10px;width:100%}.dialog-btn{flex:1;padding:10px 18px;border:1px solid var(--border-color);border-radius:999px;background:#fff;color:var(--text-main);font-size:14px;font-weight:500;cursor:pointer;transition:background .15s,border-color .15s}.dialog-btn:hover{background:#f1f5f9;border-color:#cbd5e1}.dialog-btn-primary{border-color:var(--primary);background:var(--primary);color:#fff}.dialog-btn-primary:hover{border-color:#4338ca;background:#4338ca}.dialog-btn-primary.dialog-btn-danger{border-color:#dc2626;background:#dc2626}.dialog-btn-primary.dialog-btn-danger:hover{border-color:#b91c1c;background:#b91c1c}