:root{--color-primary: #10A37F;--color-primary-hover: #0E8C6F;--color-blue-500: #3B82F6;--color-blue-600: #2563EB;--color-blue-700: #1D4ED8;--color-bg: #FFFFFF;--color-bg-secondary: #F7F7F8;--color-bg-tertiary: #ECECF1;--color-bg-hover: #ECECF1;--color-text: #2D2D2D;--color-text-secondary: #6E6E80;--color-text-tertiary: #8E8EA0;--color-border: #E5E5E5;--color-border-hover: #D1D1D6;--color-success: #10A37F;--color-success-bg: #ECFDF5;--color-success-border: #A7F3D0;--color-error: #EF4444;--color-error-bg: #FEE2E2;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04);--radius-sm: 4px;--radius-md: 6px;--radius-lg: 8px;--radius-xl: 12px;--transition-fast: .15s ease;--transition-normal: .2s ease;--transition-slow: .3s 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p{margin:0;font-size:15px}.message-group{margin-bottom:32px}.user-message,.assistant-message{margin-bottom:16px}.message-label{font-size:12px;font-weight:600;color:var(--color-text-secondary);margin-bottom:8px;text-transform:uppercase;letter-spacing:.5px}.user-message .message-content{background:linear-gradient(135deg,#ebf4ff,#f0f7ff);padding:16px;border-radius:var(--radius-lg);border:1px solid #D0E7FF;color:var(--color-text);line-height:1.6;max-width:80%;white-space:pre-wrap}.loading-indicator{display:flex;align-items:center;gap:12px;padding:16px;color:var(--color-text-secondary);font-size:14px}.stage-loading{display:flex;align-items:center;gap:12px;padding:16px;margin:12px 0;background:var(--color-bg-secondary);border-radius:var(--radius-lg);border:1px solid var(--color-border);color:var(--color-text-secondary);font-size:14px;font-style:italic}.spinner{width:20px;height:20px;border:2px solid var(--color-border);border-top-color:var(--color-blue-500);border-radius:50%;animation:spin 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#3b82f61a}.chairman-select optgroup{font-weight:600;color:var(--color-text-secondary)}.chairman-select option{font-weight:400;color:var(--color-text);padding:8px}.settings-footer{padding:16px 20px;border-top:1px solid var(--color-border);display:flex;justify-content:flex-end;gap:10px}.cancel-btn{padding:10px 20px;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-lg);font-size:14px;font-weight:500;color:var(--color-text-secondary);cursor:pointer;transition:all var(--transition-fast)}.cancel-btn:hover:not(:disabled){background:var(--color-bg-hover);border-color:var(--color-border-hover);color:var(--color-text)}.cancel-btn:disabled{opacity:.5;cursor:not-allowed}.save-btn{padding:10px 20px;background:linear-gradient(to right,var(--color-blue-500),var(--color-blue-600));border:none;border-radius:var(--radius-lg);font-size:14px;font-weight:500;color:#fff;cursor:pointer;transition:all var(--transition-normal);box-shadow:var(--shadow-sm)}.save-btn:hover:not(:disabled){background:linear-gradient(to right,var(--color-blue-600),var(--color-blue-700));box-shadow:var(--shadow-md);transform:translateY(-1px)}.save-btn:active:not(:disabled){transform:translateY(0);box-shadow:var(--shadow-sm)}.save-btn:disabled{opacity:.5;cursor:not-allowed}.app{display:flex;height:100vh;width:100vw;overflow:hidden;background:var(--color-bg);color:var(--color-text)}.auth-loading{display:flex;justify-content:center;align-items:center;height:100vh;width:100vw;background:var(--color-bg-secondary)}.auth-loading-content{text-align:center;color:var(--color-text-secondary)}.spinner{width:40px;height:40px;border:3px solid var(--color-border);border-top-color:var(--color-blue-500);border-radius:50%;animation:spin .8s linear infinite;margin:0 auto 16px}.login-screen{display:flex;justify-content:center;align-items:center;height:100vh;width:100vw;background:linear-gradient(135deg,var(--color-bg-secondary) 0%,var(--color-bg) 100%)}.login-container{background:var(--color-bg);padding:48px;border-radius:var(--radius-xl);box-shadow:var(--shadow-xl);text-align:center;max-width:400px;width:90%;border:1px solid var(--color-border)}.login-container h1{margin:0 0 8px;font-size:28px;font-weight:600;color:var(--color-text)}.login-subtitle{color:var(--color-text-secondary);margin:0 0 32px;font-size:15px;line-height:1.5}.login-button{display:inline-flex;align-items:center;justify-content:center;gap:12px;width:100%;padding:14px 24px;background:linear-gradient(to right,var(--color-blue-500),var(--color-blue-600));border:none;border-radius:var(--radius-lg);font-size:15px;font-weight:500;color:#fff;cursor:pointer;transition:all var(--transition-normal);box-shadow:var(--shadow-md)}.login-button:hover{background:linear-gradient(to right,var(--color-blue-600),var(--color-blue-700));box-shadow:var(--shadow-lg);transform:translateY(-1px)}.login-button:active{transform:translateY(0);box-shadow:var(--shadow-sm)}.google-icon{flex-shrink:0;background:#fff;padding:4px;border-radius:var(--radius-sm)}.public-share-view{height:100vh;background:var(--color-bg-secondary);display:flex;flex-direction:column;overflow-y:auto}.public-header{background:var(--color-bg);border-bottom:1px solid var(--color-border);padding:16px 24px;position:sticky;top:0;z-index:100}.public-header-content{max-width:900px;margin:0 auto;display:flex;align-items:center;justify-content:space-between}.public-logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:600;color:var(--color-text);text-decoration:none}.public-logo:hover{color:var(--color-blue-600)}.public-logo-img{width:28px;height:28px;object-fit:contain}.public-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--color-text-secondary)}.public-date{color:var(--color-text-tertiary)}.public-main{flex:1;max-width:900px;width:100%;margin:0 auto;padding:32px 24px}.public-title{margin:0 0 32px;font-size:28px;font-weight:600;color:var(--color-text);line-height:1.3}.public-messages{display:flex;flex-direction:column;gap:32px}.public-message-group{display:flex;flex-direction:column;gap:16px}.public-user-message,.public-assistant-message{margin-bottom:16px}.public-message-label{font-size:12px;font-weight:600;color:var(--color-text-secondary);margin-bottom:8px;text-transform:uppercase;letter-spacing:.5px}.public-user-message .public-message-content{background:linear-gradient(135deg,#ebf4ff,#f0f7ff);padding:16px;border-radius:var(--radius-lg);border:1px solid #D0E7FF;color:var(--color-text);line-height:1.6}.public-loading{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;color:var(--color-text-secondary)}.public-loading .spinner{width:40px;height:40px;border:3px solid var(--color-border);border-top-color:var(--color-blue-500);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.public-error{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:40px}.public-error h2{margin:0 0 8px;font-size:24px;color:var(--color-text)}.public-error p{margin:0 0 24px;color:var(--color-text-secondary)}.back-link{padding:12px 24px;background:linear-gradient(to right,var(--color-blue-500),var(--color-blue-600));border-radius:var(--radius-lg);color:#fff;text-decoration:none;font-weight:500;transition:all var(--transition-normal)}.back-link:hover{background:linear-gradient(to right,var(--color-blue-600),var(--color-blue-700));transform:translateY(-1px)}.public-footer{background:var(--color-bg);border-top:1px solid var(--color-border);padding:24px;text-align:center}.public-footer p{margin:0;font-size:14px;color:var(--color-text-secondary)}.footer-link{color:var(--color-blue-600);text-decoration:none}.footer-link:hover{text-decoration:underline}