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#000000a6;--quiz-glass:#2c2c2cb3;--quiz-glass-strong:#373737e6;--quiz-control:#ffffff0d;--quiz-control-hover:#ffffff17;--quiz-success-bg:#ffffff17;--quiz-success-border:#ffffff47;--quiz-success-text:#e2e2e2;--quiz-error-bg:#ffffff0d;--quiz-error-border:#ffffff2e;--quiz-error-text:#b8b8b8;--quiz-success-icon:#52b788;--quiz-error-icon:#df6b6b;--caret-color:#f0f0f0}*{box-sizing:border-box}body{background:linear-gradient(135deg,#f7f7f8,#ececee);background:var(--bg-gradient);background-attachment:fixed;color:#1c1c1e;color:var(--text-primary);font-family:PingFang SC,Hiragino Sans GB,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-family:var(--font-ui);line-height:1.6;margin:0;min-height:100vh;transition:background .4s cubic-bezier(.2,0,0,1),color .4s cubic-bezier(.2,0,0,1);transition:background .4s var(--motion-ease),color .4s var(--motion-ease)}.sidebar{backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);background:#121212d9!important;background:var(--color-rgba-18-18-18-a85)!important;border-right:1px solid #ffffff1a;border-right:1px solid var(--color-rgba-255-255-255-a1);display:flex;flex-direction:column;flex-shrink:0;overflow-x:hidden;overflow-y:hidden;transition:all .35s cubic-bezier(.2,0,0,1);transition:all .35s var(--motion-ease);width:240px}@media (min-width:769px){.sidebar{height:100vh;overflow-y:hidden}}[data-theme=light] .sidebar{background:#ffffffd9!important;background:var(--color-rgba-255-255-255-a85)!important;border-right:1px solid #00000014;border-right:1px solid var(--color-rgba-0-0-0-a08)}.sidebar.closed{width:48px}.sidebar-header{align-items:center;border-bottom:1px solid #8080802e;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;min-height:56px;padding:14px 12px;position:relative}.sidebar-header h2{font-size:1.2rem;font-weight:700;letter-spacing:-.02em;margin:0;opacity:1;transition:all .3s cubic-bezier(.2,0,0,1);transition:all .3s var(--motion-ease);white-space:nowrap}.sidebar.closed .sidebar-header h2{opacity:0;overflow:hidden;pointer-events:none;width:0}.collapse-btn{background:none;border:none;color:#1c1c1e;color:var(--text-primary);cursor:pointer;font-size:1.2rem;position:absolute;right:12px;top:50%;transform:translateY(-50%);z-index:10}.collapse-btn:hover{background:#0000001a;background:var(--color-rgba-0-0-0-a1);transform:scale(1.1)}.sidebar-nav{overflow:hidden;padding:12px 8px}.sidebar-nav ul{list-style:none;margin:0;padding:0}.nav-item{align-items:center;color:#5c5c60;color:var(--text-secondary);cursor:pointer;display:flex;gap:12px;margin-bottom:4px;padding:12px 16px;transition:all .25s cubic-bezier(.2,0,0,1);transition:all .25s var(--motion-ease);white-space:nowrap}.nav-item .nav-icon{align-items:center;display:inline-flex;flex:0 0 24px;justify-content:center;line-height:1;width:24px}.sidebar.closed .nav-item{justify-content:center;padding:12px 0}.nav-item .nav-text{font-size:.95rem;font-weight:500;opacity:1;transition:all .25s cubic-bezier(.2,0,0,1);transition:all .25s var(--motion-ease)}.sidebar.closed .nav-item .nav-text{display:none;opacity:0;overflow:hidden;width:0}.nav-item.active{background:#1c1c1e14;background:var(--active-bg);box-shadow:0 2px 8px #0000000f;box-shadow:var(--shadow-sm);color:#1c1c1e;color:var(--text-primary);font-weight:600}.nav-item.disabled{cursor:not-allowed;opacity:.4}.nav-item:not(.disabled):hover{background:#ffffffd9;background:var(--surface-hover);transform:translateX(4px)}.sidebar-footer{align-items:center;border-top:1px solid #8080802e;border-top:1px solid var(--border);flex-wrap:wrap;justify-content:center;padding:10px}.push-toggle,.theme-toggle{align-items:center;background:none;border:1px solid #8080802e;border:1px solid var(--border);border-radius:6px;border-radius:var(--radius-small);color:#1c1c1e;color:var(--text-primary);cursor:pointer;display:inline-flex;font-size:.9rem;line-height:1;padding:4px 10px}.sidebar-footer button{font-size:1rem;line-height:1;margin:0;padding:4px 8px}.login-hint{color:#5c5c60;color:var(--text-secondary);font-size:.7rem;line-height:1.3;margin:4px 0;text-align:center;width:100%}.theme-toggle{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#ffffffb8;background:var(--surface);border:1px solid #8080802e;border:1px solid var(--border);border-radius:18px;border-radius:var(--radius-large);color:#1c1c1e;color:var(--text-primary);cursor:pointer;font-size:.9rem;font-weight:500;padding:8px 16px;transition:all .25s cubic-bezier(.2,0,0,1);transition:all .25s var(--motion-ease)}.theme-toggle:hover{background:#ffffffd9;background:var(--surface-hover);box-shadow:0 2px 8px #0000000f;box-shadow:var(--shadow-sm);transform:scale(1.02)}.sidebar.closed .theme-toggle{font-size:0;padding:8px}.sidebar.closed .login-hint{display:none}.main-area{display:flex;flex:1 1;flex-direction:column;gap:28px;overflow-y:auto;padding:40px 32px}.hero{isolation:isolate}.hero-subtitle{margin:20px 0 40px}.home-actions-single{margin:0 auto;max-width:600px;width:90%}.action-card{background:#ffffff26;background:var(--color-rgba-255-255-255-a15);border:1px solid #ffffff26;border:1px solid var(--color-rgba-255-255-255-a15);border-radius:18px;border-radius:var(--radius-large);cursor:pointer;display:flex;flex:1 1;flex-direction:column;gap:16px;min-width:300px;padding:28px;transition:all .3s cubic-bezier(.2,0,0,1);transition:all .3s var(--motion-ease)}[data-theme=light] .action-card{background:#0000001a;background:var(--color-rgba-0-0-0-a1);border:1px solid #00000014;border:1px solid var(--color-rgba-0-0-0-a08)}.action-card:hover{background:#ffffffd9;background:var(--surface-hover);box-shadow:0 16px 40px #0000001a;box-shadow:var(--shadow-lg);transform:translateY(-4px)}.action-card h3{font-size:1.3rem;font-weight:700;margin:0}.action-card p{color:#5c5c60;color:var(--text-secondary);font-size:1rem;line-height:1.7;margin:0}.home-input{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#ffffffb8;background:var(--surface);border:1px solid #8080802e;border:1px solid var(--border);border-radius:18px;border-radius:var(--radius-large);color:#1c1c1e;color:var(--text-primary);font-size:1rem;line-height:1.6;margin-bottom:20px;outline:none;padding:16px 20px;resize:vertical;transition:all .25s cubic-bezier(.2,0,0,1);transition:all .25s var(--motion-ease);width:100%}.home-input:focus{border-color:#737378;border-color:var(--accent);box-shadow:0 0 0 3px #8a8aaa1a;box-shadow:0 0 0 3px var(--color-rgba-138-138-170-a1)}.home-input.small{height:72px}.home-btn{border:none;font-weight:600;transition:all .2s}.home-btn.primary{background:#1c1c1e;background:var(--btn-bg);color:var(--btn-text)}.home-btn.secondary{border:1px solid #1c1c1e;border:1px solid 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24px #00000014;box-shadow:var(--shadow-md);color:#fff;color:var(--btn-text)}.mode-desc{display:block;font-size:.8rem;margin-top:6px;opacity:.6}.input-box{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#ffffffb8;background:var(--surface);border:1px solid #8080802e;border:1px solid var(--border);border-radius:18px;border-radius:var(--radius-large);box-sizing:border-box;color:#1c1c1e;color:var(--text-primary);font-size:1rem;line-height:1.6;margin-bottom:16px;min-height:180px;outline:none;padding:20px;resize:vertical;transition:all .25s cubic-bezier(.2,0,0,1);transition:all .25s var(--motion-ease);width:100%}.input-box:focus{border-color:#737378;border-color:var(--accent);box-shadow:0 0 0 3px #8a8aaa1a;box-shadow:0 0 0 3px 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infinite;background:linear-gradient(90deg,#737378,#5856d6);background:linear-gradient(90deg,var(--accent),var(--color-hex-5856d6));background-size:200% 100%;height:100%;transition:width .3s cubic-bezier(.2,0,0,1);transition:width .3s var(--motion-ease)}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.progress-text{color:#1c1c1e!important;color:var(--text-primary)!important;font-size:.95rem;margin-top:12px}.progress-hint{font-size:.75rem;font-style:italic;margin-top:4px}.progress-hint,.thinking-stream{color:#5c5c60;color:var(--text-secondary)}.thinking-stream{font-size:.8rem;line-height:1.4;margin-top:8px;max-height:60px;opacity:.8;overflow-y:hidden}.thinking-line{animation:fadeIn .3s ease;margin:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.generated-files-list{border-top:1px solid #8080802e;border-top:1px solid var(--border);margin-top:12px;max-height:420px;overflow-y:auto;padding-top:12px}.generated-file-item{animation:fadeIn .3s ease;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);background:#ffffffb8;background:var(--glass-bg,var(--surface));border:1px solid #8080802e;border:1px solid var(--border);border-radius:12px;border-radius:var(--radius-medium);margin-bottom:8px;padding:10px 12px}.generated-file-item summary{align-items:center;cursor:pointer;display:flex;list-style:none;min-height:28px}.generated-file-item summary::-webkit-details-marker{display:none}.generated-file-item summary:before{color:#5c5c60;color:var(--text-secondary);content:"›";transform:rotate(0deg);transition:transform .2s ease;width:18px}.generated-file-item[open] summary:before{transform:rotate(90deg)}.file-ready-mark{color:#5c5c60;color:var(--text-secondary);font-size:.8rem;margin-left:auto}.file-ready-mark.is-streaming{animation:previewPulse 1s ease-in-out infinite}@keyframes previewPulse{0%,to{opacity:.35}50%{opacity:1}}.generated-file-item:last-child{margin-bottom:0}.file-badge{background:#1c1c1e;background:var(--btn-bg);border-radius:6px;border-radius:var(--radius-small);color:#fff;color:var(--btn-text);display:inline-block;font-size:.7rem;margin-right:8px;padding:2px 6px}.file-name{color:#1c1c1e;color:var(--text-primary);font-size:.85rem;font-weight:500}.file-preview{font-size:.75rem;margin:6px 0 0;word-break:break-word}.generated-file-item .file-preview{border-top:1px solid #8080802e;border-top:1px solid var(--border);margin:10px 0 2px 18px;max-height:220px;overflow-y:auto;padding-top:10px}.quick-result{border-left:3px solid #1c1c1e;border-left:3px solid var(--btn-bg);cursor:pointer;margin-top:20px;padding:16px;position:relative;transition:all .2s}.quick-result:hover{box-shadow:0 2px 8px #0000001a;box-shadow:0 2px 8px var(--color-rgba-0-0-0-a1)}.quick-result h4{margin:0 0 8px}.quick-result p{line-height:1.6}.expand-hint{color:#1c1c1e;color:var(--btn-bg);display:block;font-size:.75rem;margin-top:8px;text-align:right}.quick-modal{align-items:center;animation:fadeIn .2s ease;background:#0009;background:var(--color-rgba-0-0-0-a6);bottom:0;display:flex;justify-content:center;left:0;padding:20px;position:fixed;right:0;top:0;z-index:999}.quick-modal-content{background:#ffffff26;background:var(--color-rgba-255-255-255-a15);border:1px solid #ffffff26;border:1px solid var(--color-rgba-255-255-255-a15);border-radius:12px;border-radius:var(--radius-medium);display:flex;flex-direction:column;max-height:85vh;max-width:700px;width:100%}[data-theme=light] .quick-modal-content{background:#0000001a;background:var(--color-rgba-0-0-0-a1);border:1px solid #00000014;border:1px solid var(--color-rgba-0-0-0-a08)}.quick-modal-header{align-items:center;border-bottom:1px solid #8080802e;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;padding:20px 24px 12px}.quick-modal-header h4{font-size:1.2rem;margin:0}.quick-modal-close{background:none;border:none;border-radius:50%;color:#5c5c60;color:var(--text-secondary);cursor:pointer;font-size:1.5rem;padding:4px 8px;transition:background .2s}.quick-modal-close:hover{background:#ffffffb8;background:var(--surface)}.quick-modal-body{-webkit-overflow-scrolling:touch;overflow-y:auto;padding:20px 24px}.quick-modal-body p{font-size:.95rem;line-height:1.8;white-space:pre-wrap}.sidebar-overlay{display:none}.download-link{align-self:flex-start;background:#1c1c1e;background:var(--btn-bg);border-radius:18px;border-radius:var(--radius-large);color:#fff;color:var(--btn-text);display:inline-block;font-size:1rem;font-weight:600;padding:16px 32px;text-decoration:none;transition:all .25s cubic-bezier(.2,0,0,1);transition:all .25s var(--motion-ease)}[data-theme=dark] .download-link{background:#fff!important;background:var(--color-hex-ffffff)!important;color:#1a1a1a!important;color:var(--color-hex-1a1a1a)!important}[data-theme=light] .download-link{background:#1a1a1a!important;background:var(--color-hex-1a1a1a)!important;color:#fff!important;color:var(--color-hex-ffffff)!important}.download-link:hover{background:#343438;background:var(--btn-hover);box-shadow:0 8px 24px #00000014;box-shadow:var(--shadow-md);transform:scale(1.02)}.toast{animation:slideUp .4s cubic-bezier(.2,0,0,1);animation:slideUp .4s var(--motion-ease);background:#141414bf;background:var(--color-rgba-20-20-20-a75);border:1px solid #ffffff1a;border:1px solid var(--color-rgba-255-255-255-a1);border-radius:18px;border-radius:var(--radius-large);bottom:32px;box-shadow:0 8px 32px #0000004d;box-shadow:0 8px 32px var(--color-rgba-0-0-0-a3);cursor:pointer;font-size:.85rem;max-height:60vh;max-width:280px;overflow-y:auto;padding:0;position:fixed;right:32px;z-index:1000}.toast,[data-theme=light] .toast{backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}[data-theme=light] .toast{background:#ffffffd9;background:var(--color-rgba-255-255-255-a85);border:1px solid #0000001a;border:1px solid var(--color-rgba-0-0-0-a1);box-shadow:0 8px 32px #00000026;box-shadow:0 8px 32px var(--color-rgba-0-0-0-a15)}.toast-body{align-items:flex-start;display:flex;font-size:.85rem;gap:8px;line-height:1.5;padding:12px 12px 6px;position:relative}.toast-close-btn{background:none;border:none;color:#5c5c60;color:var(--text-secondary);cursor:pointer;font-size:1.2rem;line-height:1;padding:0;position:absolute;right:8px;top:8px}.toast-close-btn:hover{background:#00000026;background:var(--color-rgba-0-0-0-a15);transform:scale(1.1)}.toast-hint{color:#8e8e93;color:var(--text-tertiary);font-size:.8rem;padding:0 20px 16px;text-align:right}.toast.expanded{cursor:default;max-height:50vh;max-width:320px;padding:16px}.toast-chat{display:flex;flex-direction:column;gap:16px}.toast-question{font-size:1rem;font-weight:500;line-height:1.7;margin:0}.toast-input,.toast-question{color:#1c1c1e;color:var(--text-primary)}.toast-input{background:#0000000d;background:var(--color-rgba-0-0-0-a05);border:1px solid #8080802e;border:1px solid var(--border);border-radius:12px;border-radius:var(--radius-medium);font-size:.95rem;outline:none;padding:14px;transition:all .25s cubic-bezier(.2,0,0,1);transition:all .25s var(--motion-ease);width:100%}.toast-input:focus{border-color:#737378;border-color:var(--accent)}.toast-btn{align-self:flex-end;background:#1c1c1e;background:var(--btn-bg);border:none;border-radius:18px;border-radius:var(--radius-large);color:#fff;color:var(--btn-text);cursor:pointer;font-size:.9rem;font-weight:600;padding:12px 24px;transition:all .25s cubic-bezier(.2,0,0,1);transition:all .25s var(--motion-ease)}.toast-btn:hover{background:#343438;background:var(--btn-hover);transform:scale(1.02)}.chat-view{display:flex;flex-direction:column;height:100%;margin:0 auto;max-width:720px;width:100%}.chat-header{margin-bottom:24px}.chat-header h2{font-size:2rem;font-weight:800;letter-spacing:-.02em;margin:0}.chat-subtitle{color:#5c5c60;color:var(--text-secondary);font-size:1rem;margin:6px 0 0}.chat-messages{display:flex;flex:1 1;flex-direction:column;gap:20px;overflow-y:auto;padding:12px 0}.msg-bubble{word-wrap:break-word;border-radius:18px;border-radius:var(--radius-large);box-shadow:0 2px 8px #0000001a;box-shadow:0 2px 8px var(--color-rgba-0-0-0-a1);font-size:1rem;line-height:1.65;max-width:70%;padding:16px 20px;transition:transform .2s,box-shadow .2s;white-space:pre-wrap;word-break:break-word}.msg-bubble:hover{box-shadow:0 4px 12px #00000026;box-shadow:0 4px 12px var(--color-rgba-0-0-0-a15);transform:translateY(-2px)}.chat-msg.ai .msg-bubble{background:#0000000f;background:var(--color-rgba-0-0-0-a06);border:1px solid #00000014;border:1px solid var(--color-rgba-0-0-0-a08);border-bottom-left-radius:8px}.chat-msg.ai .msg-bubble,.chat-msg.user .msg-bubble{-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);color:#1c1c1e}.chat-msg.user .msg-bubble{background:#0000001a;background:var(--color-rgba-0-0-0-a1);border:1px solid #0000001f;border:1px solid var(--color-rgba-0-0-0-a12);border-bottom-right-radius:8px;color:var(--text-primary)}.chat-input-area{align-items:flex-end!important;display:flex!important;gap:10px!important;padding:12px 0!important;width:100%}.chat-input-area .chat-input{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#8080801a!important;background:var(--color-rgba-128-128-128-a1)!important;border:1px solid #ffffff1a!important;border:1px solid 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cubic-bezier(.2,0,0,1);transition:background .4s var(--motion-ease);z-index:-2}body:after,body:before{bottom:0;content:"";left:0;position:fixed;right:0;top:0}body:after{background:#00000026;background:var(--color-rgba-0-0-0-a15);pointer-events:none;transition:opacity .4s cubic-bezier(.2,0,0,1);transition:opacity .4s var(--motion-ease);z-index:-1}[data-theme=dark] body:after{background:#0006;background:var(--color-rgba-0-0-0-a4)}.history-detail{max-width:800px}.history-summary h4{color:#1c1c1e;color:var(--text-primary);font-size:1rem;font-weight:600;margin:0 0 8px}.history-summary p{line-height:1.6}.expand-summary{color:#1c1c1e;color:var(--btn-bg);cursor:pointer;display:inline-block;font-size:.8rem;margin-top:6px}.full-summary{border-top:1px solid #8080802e;border-top:1px solid var(--border);margin-top:10px;padding-top:10px}.history-card{background:#ffffff26;background:var(--color-rgba-255-255-255-a15);border:1px solid #ffffff26;border:1px solid var(--color-rgba-255-255-255-a15);border-radius:18px;border-radius:var(--radius-large);margin-top:20px;padding:28px}[data-theme=light] .history-card{background:#0000001a;background:var(--color-rgba-0-0-0-a1);border:1px solid #00000014;border:1px solid var(--color-rgba-0-0-0-a08)}.history-card h3{font-size:1.4rem;font-weight:700;margin:0 0 20px}.history-summary{background:#f7f7f8;background:var(--bg);border-left:4px solid #1c1c1e;border-left:4px solid var(--btn-bg);border-radius:12px;border-radius:var(--radius-medium);margin-bottom:24px;padding:20px}.history-summary p{font-size:1rem;line-height:1.7;margin:0;white-space:pre-wrap}.flowchart-visual{margin-bottom:24px}.flowchart-visual h4{color:#5c5c60;color:var(--text-secondary);font-size:.9rem;margin:0 0 12px}.flowchart-steps{gap:0;overflow-x:auto;padding:12px 0}.flowchart-step-card{background:#ffffff26;background:var(--color-rgba-255-255-255-a15);border:1px solid #ffffff26;border:1px solid var(--color-rgba-255-255-255-a15);flex-direction:column;margin-right:30px;min-width:90px;padding:12px 8px;position:relative}[data-theme=light] .flowchart-step-card{background:#0000001a;background:var(--color-rgba-0-0-0-a1);border:1px solid #00000014;border:1px solid var(--color-rgba-0-0-0-a08)}.flowchart-step-card:last-child{margin-right:0}.step-tag{background:#ffffffb8;background:var(--surface);border-radius:6px;border-radius:var(--radius-small);color:#5c5c60;color:var(--text-secondary);font-size:.7rem;margin-top:4px;padding:2px 6px}.step-arrow{font-size:1.2rem;position:absolute;right:-22px;top:50%;transform:translateY(-50%)}.history-full-docs{border-top:1px solid #8080802e;border-top:1px solid var(--border);margin-top:24px;padding-top:20px}.history-full-docs summary{background:#ffffffd9;background:var(--surface-hover);border-radius:12px;border-radius:var(--radius-medium);color:#5c5c60;color:var(--text-secondary);cursor:pointer;font-weight:600;margin-bottom:12px;padding:12px 16px;transition:all .25s cubic-bezier(.2,0,0,1);transition:all .25s var(--motion-ease)}.history-full-docs summary:hover{background:#1c1c1e14;background:var(--active-bg)}.full-docs-content{display:flex;flex-direction:column;gap:12px;margin-top:16px}.full-docs-content .file-section{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#ffffffb8;background:var(--surface);border:1px solid #8080802e;border:1px solid var(--border);border-radius:12px;border-radius:var(--radius-medium);overflow:hidden}.full-docs-content .file-section summary{background:#00000008;background:var(--color-rgba-0-0-0-a03);color:#1c1c1e;color:var(--text-primary);cursor:pointer;font-weight:500;padding:14px 18px;transition:all .25s cubic-bezier(.2,0,0,1);transition:all .25s var(--motion-ease)}.full-docs-content .file-section summary:hover{background:#0000000f;background:var(--color-rgba-0-0-0-a06)}.full-docs-content .file-section pre{background:#f7f7f8;background:var(--bg);font-family:inherit;font-size:.95rem;line-height:1.7;margin:0;padding:18px;white-space:pre-wrap}.settings-view{grid-gap:18px;align-items:start;display:grid;gap:18px;grid-template-columns:repeat(2,minmax(0,1fr));margin:0 auto;max-width:980px;width:100%}.settings-view h2{grid-column:1/-1;margin:0 0 2px}.settings-section{margin:0;min-width:0}.settings-section h3{border:0;color:#5c5c60;color:var(--text-secondary);font-size:.82rem;margin:0 0 8px;padding:0 2px}.settings-card{-webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px);background:#ffffffb8;background:var(--surface);border:1px solid #8080802e;border:1px solid var(--border);border-radius:12px;border-radius:var(--radius-medium);display:flex;flex-direction:column;padding:14px}.settings-wide-section{grid-column:1/-1}.settings-advanced{-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#ffffffb8;background:var(--surface);border:1px solid #8080802e;border:1px solid var(--border);border-radius:12px;border-radius:var(--radius-medium);order:10;overflow:hidden}.settings-advanced>summary{align-items:center;color:#1c1c1e;color:var(--text-primary);cursor:pointer;display:flex;gap:14px;justify-content:space-between;list-style:none;min-height:62px;padding:11px 14px}.settings-advanced>summary::-webkit-details-marker{display:none}.settings-advanced>summary>span{grid-gap:2px;display:grid;gap:2px;min-width:0}.settings-advanced>summary strong{font-size:.84rem;font-weight:600}.settings-advanced>summary small{color:#8e8e93;color:var(--text-tertiary);font-size:.7rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.settings-advanced>summary svg{color:#8e8e93;color:var(--text-tertiary);flex:0 0 auto;transition:transform .2s cubic-bezier(.2,0,0,1);transition:transform .2s var(--motion-ease)}.settings-advanced[open]>summary svg{transform:rotate(90deg)}.settings-advanced-content{grid-gap:18px;border-top:1px solid #8080802e;border-top:1px solid var(--border);display:grid;gap:18px;grid-template-columns:repeat(2,minmax(0,1fr));padding:4px 14px 16px}.settings-advanced-content .decision-history-section{grid-column:1/-1}.setting-item{align-items:center;background:#ffffffb8;background:var(--surface);border-radius:12px;border-radius:var(--radius-medium);display:flex;justify-content:space-between;padding:12px 16px;transition:all .2s ease}.setting-item:hover{box-shadow:0 4px 12px #00000026;box-shadow:0 4px 12px var(--color-rgba-0-0-0-a15);transform:translateY(-2px)}.toggle-btn{background:#8080801a;background:var(--color-rgba-128-128-128-a1);border:1px solid #8080802e;border:1px solid var(--border);border-radius:18px;border-radius:var(--radius-large);color:#5c5c60;color:var(--text-secondary);cursor:pointer;font-size:.85rem;padding:6px 16px;transition:all .2s}.toggle-btn.active{background:#80808040;background:var(--color-rgba-128-128-128-a25);color:#1c1c1e;color:var(--text-primary)}.account-info{align-items:center;border-bottom:1px solid #8080802e;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;padding:8px 0}.account-info:last-of-type{border-bottom:none}.account-label{color:#5c5c60;color:var(--text-secondary);font-size:.9rem}.account-value{color:#1c1c1e;color:var(--text-primary);font-size:.9rem;font-weight:600}.settings-buttons{display:flex;gap:8px;margin-top:4px}.settings-btn{background:#ffffffd9;background:var(--surface-hover);border:1px solid #8080802e;border:1px solid var(--border);border-radius:12px;border-radius:var(--radius-medium);color:#1c1c1e;color:var(--text-primary);cursor:pointer;flex:1 1;font-size:.85rem;font-weight:500;padding:10px 14px;transition:all .25s cubic-bezier(.2,0,0,1);transition:all .25s var(--motion-ease)}.settings-btn:hover{background:#1c1c1e14;background:var(--active-bg);transform:scale(1.02)}.settings-btn.danger{background:#ff3b3014;background:var(--color-rgba-255-59-48-a08);border-color:#ff3b304d;border-color:var(--color-rgba-255-59-48-a3);color:#ff3b30;color:var(--color-hex-ff3b30)}.settings-btn.danger:hover{background:#ff3b3026;background:var(--color-rgba-255-59-48-a15)}.language-options{display:flex;gap:8px}.lang-btn{background:#ffffffd9;background:var(--surface-hover);border:2px solid #8080802e;border:2px solid var(--border);border-radius:12px;border-radius:var(--radius-medium);color:#1c1c1e;color:var(--text-primary);cursor:pointer;flex:1 1;font-size:.9rem;font-weight:500;padding:10px 14px;transition:all .25s cubic-bezier(.2,0,0,1);transition:all .25s 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img{border-radius:12px;border-radius:var(--radius-medium);max-height:150px;object-fit:cover;width:100%}.bg-preview img,.remove-bg-btn{border:1px solid #8080802e;border:1px solid var(--border)}.remove-bg-btn{background:#0000;border-radius:12px;border-radius:var(--radius-medium);color:#5c5c60;color:var(--text-secondary);cursor:pointer;font-size:.85rem;font-weight:500;padding:8px 14px;transition:all .25s cubic-bezier(.2,0,0,1);transition:all .25s var(--motion-ease)}.remove-bg-btn:hover{background:#1c1c1e14;background:var(--active-bg);color:#1c1c1e;color:var(--text-primary)}.bg-upload-details{width:100%}.bg-upload-summary{align-items:center;background:#ffffffd9;background:var(--surface-hover);border-radius:12px;border-radius:var(--radius-medium);cursor:pointer;display:flex;font-size:.95rem;font-weight:600;justify-content:space-between;list-style:none;margin-bottom:0;padding:12px 16px;transition:all .25s cubic-bezier(.2,0,0,1);transition:all .25s var(--motion-ease)}.bg-upload-summary::-webkit-details-marker{display:none}.bg-upload-summary:after{content:"▼";font-size:.75rem;opacity:.6;transition:transform .25s cubic-bezier(.2,0,0,1);transition:transform .25s var(--motion-ease)}.bg-upload-details[open] .bg-upload-summary:after{transform:rotate(180deg)}.history-trigger{align-items:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffffb8;background:var(--surface);border:1px solid #8080802e;border:1px solid var(--border);border-radius:18px 0 0 18px;border-radius:var(--radius-large) 0 0 var(--radius-large);bottom:20px;box-shadow:-2px 2px 8px #0003;box-shadow:-2px 2px 8px var(--color-rgba-0-0-0-a2);cursor:pointer;display:flex;gap:8px;padding:10px 15px;position:fixed;right:0;z-index:200}@media (min-width:769px){.history-trigger{bottom:auto;right:0;top:50%}}.history-panel{-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#f7f7f8;background:var(--bg);border:1px solid 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button{backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);background:#80808026;background:var(--color-rgba-128-128-128-a15);border:1px solid #fff3;border:1px solid var(--color-rgba-255-255-255-a2);border-radius:18px;border-radius:var(--radius-large);color:#1c1c1e;color:var(--text-primary);cursor:pointer;flex-shrink:0;font-size:.95rem;padding:12px 24px;transition:all .2s ease;white-space:nowrap}.hero-search button:hover{background:#80808040!important;background:var(--color-rgba-128-128-128-a25)!important;transform:scale(1.02)}.hero-search-icon-btn{align-items:center;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);background:#80808026;background:var(--color-rgba-128-128-128-a15);border:1px solid #fff3;border:1px solid var(--color-rgba-255-255-255-a2);border-radius:50%!important;color:#1c1c1e;color:var(--text-primary);cursor:pointer;display:none;font-size:1.2rem;height:44px;justify-content:center;transition:all .2s;width:44px}.hero-search-icon-btn:hover{background:#80808040;background:var(--color-rgba-128-128-128-a25);transform:scale(1.05)}.hero-search-text-btn{backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);background:#80808026;background:var(--color-rgba-128-128-128-a15);border:1px solid #fff3;border:1px solid var(--color-rgba-255-255-255-a2);border-radius:18px;border-radius:var(--radius-large);color:#1c1c1e;color:var(--text-primary);cursor:pointer;display:inline-block;font-size:.95rem;padding:12px 28px;transition:all .2s}.hero-search-text-btn:hover{background:#80808040;background:var(--color-rgba-128-128-128-a25);transform:scale(1.02)}.hero-search-text-btn:disabled{cursor:not-allowed;opacity:.5}@media (min-width:769px){.hero-search-icon-btn{display:flex}.hero-search-text-btn{display:none}}.home-actions{gap:15px}.home-btn{backdrop-filter:blur(10px)!important;-webkit-backdrop-filter:blur(10px)!important;background:#8080801a!important;background:var(--color-rgba-128-128-128-a1)!important;border:1px solid #ffffff26!important;border:1px solid var(--color-rgba-255-255-255-a15)!important;border-radius:18px!important;border-radius:var(--radius-large)!important;color:#1c1c1e!important;color:var(--text-primary)!important;font-size:1rem;padding:14px 32px;transition:all .2s ease}.home-btn:hover{background:#80808040;background:var(--color-rgba-128-128-128-a25);border-color:#ffffff4d;border-color:var(--color-rgba-255-255-255-a3);transform:scale(1.03)}.home-btn.ios-style{backdrop-filter:blur(20px)!important;-webkit-backdrop-filter:blur(20px)!important;background:#ffffffb8!important;background:var(--surface)!important;border:1px solid #8080802e!important;border:1px solid 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h1{color:#fffffff2;color:var(--color-rgba-255-255-255-a95);cursor:default;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:clamp(3rem,10vw,6rem);font-weight:900;letter-spacing:-2px;margin:0}.hero-subtitle{color:#5c5c60;color:var(--text-secondary);font-size:1.15rem;line-height:1.6;margin:16px 0 32px;max-width:500px;min-height:2em}.home-actions{margin-bottom:28px}.home-btn{border-radius:12px;border-radius:var(--radius-medium);cursor:pointer;font-size:.95rem;padding:12px 28px;transition:box-shadow .2s}.home-btn.primary{background:linear-gradient(135deg,#4a4a4a,#2a2a2a);background:linear-gradient(135deg,var(--color-hex-4a4a4a) 0,var(--color-hex-2a2a2a) 100%);border:none;color:#fff;color:var(--color-hex-fff)}.hero-search{align-items:center;display:flex;gap:10px;margin:0 auto 24px;max-width:600px;position:relative;width:100%}.hero-search input{background:#ffffffb8;background:var(--surface);border:1px solid #8080802e;border:1px solid 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p{line-height:1.7;margin:0;white-space:pre-wrap}.search-history{margin-bottom:20px}.search-history-header{align-items:center;color:#5c5c60;color:var(--text-secondary);display:flex;font-size:.9rem;justify-content:space-between;margin-bottom:10px}.clear-history-btn{background:none;border:none;color:#1c1c1e;color:var(--btn-bg);cursor:pointer;font-size:.85rem}.search-history-tags{display:flex;flex-wrap:wrap;gap:8px}.history-tag{align-items:center;background:#ffffffb8;background:var(--surface);border:1px solid #8080802e;border:1px solid var(--border);border-radius:18px;border-radius:var(--radius-large);color:#1c1c1e;color:var(--text-primary);display:flex;font-size:.9rem;gap:6px;padding:6px 12px}.tag-delete{background:none;border:none;color:#5c5c60;color:var(--text-secondary);cursor:pointer;font-size:.8rem}.search-cards{grid-gap:16px;display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}.search-card{background:#ffffffb8;background:var(--surface);border:1px solid 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var(--motion-ease)}.user-item-switch:hover{background:#1c1c1e14;background:var(--active-bg);transform:scale(1.02)}.user-item-actions{align-items:center;display:flex;gap:8px}.user-item-delete{background:#ff3b301a;background:var(--color-rgba-255-59-48-a1);border:none;border-radius:12px;border-radius:var(--radius-medium);color:#ff3b30;color:var(--color-hex-ff3b30);cursor:pointer;filter:saturate(0);font-size:.85rem;padding:6px 10px;transition:all .25s cubic-bezier(.2,0,0,1);transition:all .25s var(--motion-ease)}.user-item-delete:hover{background:#ff3b3033;background:var(--color-rgba-255-59-48-a2);transform:scale(1.05)}.delete-warning{color:#ff3b30;color:var(--color-hex-ff3b30);font-size:.95rem;line-height:1.6;margin:0 0 20px;text-align:center}.confirm-buttons{display:flex;gap:12px;justify-content:center}.confirm-btn{border:none;border-radius:12px;border-radius:var(--radius-medium);cursor:pointer;font-size:.95rem;font-weight:600;padding:10px 24px;transition:all .25s cubic-bezier(.2,0,0,1);transition:all .25s var(--motion-ease)}.confirm-btn.cancel{background:#ffffffb8;background:var(--surface);border:1px solid #8080802e;border:1px solid var(--border);color:#5c5c60;color:var(--text-secondary)}.confirm-btn.cancel:hover{background:#ffffffd9;background:var(--surface-hover)}.confirm-btn.ok{background:#ff3b3026;background:var(--color-rgba-255-59-48-a15);border:1px solid #ff3b304d;border:1px solid var(--color-rgba-255-59-48-a3);color:#ff3b30;color:var(--color-hex-ff3b30)}.confirm-btn.ok:hover{background:#ff3b3040;background:var(--color-rgba-255-59-48-a25)}.switch-hint{color:#5c5c60;color:var(--text-secondary);font-size:.95rem;line-height:1.6;margin:0 0 20px;text-align:center}.auth-btn.danger{background:#ff3b30;background:var(--color-hex-ff3b30);color:#fff}.auth-btn.danger:hover:not(:disabled){background:#ff2d20;background:var(--color-hex-ff2d20)}.generated-files{margin-top:20px}.generated-files h4{color:#5c5c60;color:var(--text-secondary);font-size:.9rem;margin:0 0 10px}.file-card{-webkit-backdrop-filter:blur(24px) saturate(180%);backdrop-filter:blur(24px) saturate(180%);background:#121212bf;background:var(--color-rgba-18-18-18-a75);border:1px solid #ffffff26;border-left:3px solid #1c1c1e;border:1px solid var(--color-rgba-255-255-255-a15);border-left:3px solid var(--btn-bg);border-radius:12px;border-radius:var(--radius-medium);box-shadow:0 8px 32px #0000004d;box-shadow:0 8px 32px var(--color-rgba-0-0-0-a3);margin-bottom:10px;padding:12px}[data-theme=light] .file-card{background:#ffffffbf;background:var(--color-rgba-255-255-255-a75);border:1px solid #0000001a;border:1px solid var(--color-rgba-0-0-0-a1);box-shadow:0 8px 32px #0000001a;box-shadow:0 8px 32px var(--color-rgba-0-0-0-a1)}[data-theme=light] .hero-search button,[data-theme=light] .home-btn{backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);background:#ffffffbf;background:var(--color-rgba-255-255-255-a75);border:1px solid #00000026;border:1px solid var(--color-rgba-0-0-0-a15);color:#1a1a1a;color:var(--color-hex-1a1a1a)}[data-theme=light] .hero-search button:hover,[data-theme=light] .home-btn:hover{background:#ffffffe6;background:var(--color-rgba-255-255-255-a9)}.file-card span{display:block;font-weight:600;margin-bottom:4px}.file-preview{color:#5c5c60;color:var(--text-secondary);font-size:.85rem;line-height:1.4;white-space:pre-wrap}.step-chart{display:flex;gap:0;overflow-x:auto;padding:12px 0}.step-node{align-items:center;background:#f7f7f8;background:var(--bg);border:1px solid #8080802e;border:1px solid var(--border);border-radius:12px;border-radius:var(--radius-medium);display:flex;flex-direction:column;margin-right:30px;min-width:90px;padding:12px 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8px}.onboarding-identity{color:#5c5c60;color:var(--text-secondary);font-size:.9rem;margin:0 0 24px}.onboarding-features{display:flex;flex-direction:column;gap:16px;margin-bottom:28px;text-align:left}.onboarding-feature{align-items:flex-start;display:flex;gap:12px}.feature-icon{font-size:1.5rem}.onboarding-feature h4{font-size:1rem;margin:0 0 4px}.onboarding-feature p{color:#5c5c60;color:var(--text-secondary);font-size:.85rem;margin:0}.onboarding-cta{background:#1c1c1e;background:var(--btn-bg);border:none;border-radius:12px;border-radius:var(--radius-medium);color:#fff;color:var(--btn-text);cursor:pointer;font-size:1rem;margin-bottom:12px;padding:14px;transition:transform .2s;width:100%}.onboarding-cta:hover{transform:scale(1.02)}.onboarding-skip{color:#5c5c60;color:var(--text-secondary);cursor:pointer;font-size:.85rem;text-decoration:underline}.onboarding-theme-picker{display:flex;gap:8px;justify-content:center;margin-bottom:20px}.onboarding-theme-picker button{background:#0000;border:1px solid #8080802e;border:1px solid var(--border);border-radius:18px;border-radius:var(--radius-large);color:#5c5c60;color:var(--text-secondary);cursor:pointer;font-size:.85rem;padding:6px 16px}.onboarding-theme-picker button.active{background:#1c1c1e;background:var(--btn-bg);border-color:#1c1c1e;border-color:var(--btn-bg);color:#fff;color:var(--btn-text)}.question-card{background:#ffffffb8;background:var(--surface);border-radius:12px;border-radius:var(--radius-medium);box-shadow:0 4px 24px #0003;box-shadow:0 4px 24px var(--color-rgba-0-0-0-a2);max-width:600px;overflow:hidden;padding:24px;transition:box-shadow .3s;width:100%}.question-card:hover{box-shadow:0 8px 40px #0000004d;box-shadow:0 8px 40px var(--color-rgba-0-0-0-a3)}.question-card.expanded{max-width:800px}.question-area{display:flex;gap:10px}.question-area .input-wrapper{flex:1 1;position:relative}.question-area input{background:#f7f7f8;background:var(--bg);border:1px solid #8080802e;border:1px 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var(--border);border-radius:12px;border-radius:var(--radius-medium);color:#1c1c1e;color:var(--text-primary);cursor:pointer;font-size:.95rem;padding:10px 20px}.history-cards-grid{grid-gap:20px;display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));padding:20px 0}.history-card{background:#ffffffb8;background:var(--surface);border-radius:12px;border-radius:var(--radius-medium);cursor:pointer;min-height:160px;padding:20px;position:relative;transition:box-shadow .2s}.history-card:hover{box-shadow:0 8px 30px #0000004d;box-shadow:0 8px 30px var(--color-rgba-0-0-0-a3)}.history-card h4{font-size:1.1rem;margin:0 0 8px}.history-card small{color:#5c5c60;color:var(--text-secondary);font-size:.8rem}.history-card-preview{color:#5c5c60;color:var(--text-secondary);font-size:.9rem;line-height:1.5;margin:12px 0}.history-card-name-input{background:#0000;border:none;color:#1c1c1e;color:var(--text-primary);font-size:1.1rem;font-weight:600;margin-bottom:8px;outline:none;padding:0;width:100%}.history-card-name-input:focus{background:#8080801a;background:var(--color-rgba-128-128-128-a1);border-radius:6px;border-radius:var(--radius-small);padding:4px 8px}.history-card-meta{align-items:center;display:flex;gap:8px;margin-bottom:12px}.history-card-meta small{color:#5c5c60;color:var(--text-secondary);font-size:.8rem}.status-tag{background:#34c75926;background:var(--color-rgba-52-199-89-a15);border-radius:12px;border-radius:var(--radius-medium);color:#34c759;color:var(--color-hex-34c759);font-size:.75rem;padding:2px 8px}.status-tag.error{background:#ff3b3026;background:var(--color-rgba-255-59-48-a15);color:#ff3b30;color:var(--color-hex-ff3b30)}.history-card-actions{display:flex;gap:8px;margin-top:12px}.history-card-actions .download-btn{flex:1 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