body.page-login {
            background: #f5f7fa;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        
        /* 顶部导航栏 */
        .header {
            background: white;
            padding: 16px 40px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.08);
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin: 20px auto;
            max-width: 1200px;
            border-radius: 24px;
            width: calc(100% - 40px);
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 600;
            color: #1a1a1a;
        }
        
        .logo-icon {
            width: 32px;
            height: 32px;
            background: #1a1a1a;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
            font-size: 18px;
            overflow: hidden;
        }
        
        .logo-icon img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .nav-links {
            display: flex;
            gap: 30px;
            align-items: center;
            flex-wrap: wrap;
        }
        
        .nav-links a {
            color: #666;
            text-decoration: none;
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 6px;
            transition: color 0.2s;
        }
        
        .nav-links a:hover {
            color: #1a1a1a;
        }
        
        .nav-icon {
            width: 18px;
            height: 18px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        
        .nav-icon svg {
            width: 100%;
            height: 100%;
            fill: currentColor;
        }
        
        .right-menu {
            display: flex;
            gap: 20px;
            align-items: center;
        }
        
        .right-menu a {
            color: #666;
            text-decoration: none;
            font-size: 14px;
        }
        
        .menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            border: 1px solid #e5e7eb;
            background: white;
            padding: 10px;
            flex-direction: column;
            justify-content: center;
            gap: 6px;
            cursor: pointer;
        }
        
        .menu-toggle span {
            display: block;
            height: 2px;
            width: 100%;
            background: #1a1a1a;
            border-radius: 999px;
        }
        
        /* 主内容区 */
        .main-content {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 40px 20px;
        }
        
        .login-container {
            background: white;
            padding: 48px 40px;
            border-radius: 24px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.08);
            width: 100%;
            max-width: 420px;
            will-change: transform;
        }
        
        .welcome-text {
            text-align: center;
            margin-bottom: 32px;
        }
        
        .welcome-title {
            font-size: 28px;
            font-weight: 600;
            color: #1a1a1a;
            margin-bottom: 8px;
        }
        
        .welcome-subtitle {
            font-size: 14px;
            color: #666;
            line-height: 1.6;
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        .form-label {
            display: block;
            margin-bottom: 8px;
            color: #333;
            font-size: 14px;
            font-weight: 500;
        }
        
        .form-input {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #e5e7eb;
            border-radius: 8px;
            font-size: 15px;
            transition: all 0.2s;
            background: #f9fafb;
            color: #333;
        }
        
        .form-input::placeholder {
            color: #999;
        }
        
        .form-input:focus {
            outline: none;
            border-color: #3b82f6;
            background: white;
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
        }
        
        .form-hint {
            font-size: 12px;
            color: #999;
            margin-top: 8px;
        }
        
        .forgot-link {
            text-align: right;
            margin-bottom: 24px;
        }
        
        .forgot-link a {
            color: #3b82f6;
            text-decoration: none;
            font-size: 13px;
        }
        
        .forgot-link a:hover {
            text-decoration: underline;
        }
        
        .submit-btn {
            width: 100%;
            padding: 14px;
            background: #3b82f6;
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
            will-change: transform;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        
        .submit-btn:hover {
            background: #2563eb;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
        }
        
        .submit-btn:active {
            transform: translateY(0);
        }
        
        .submit-btn:disabled {
            opacity: 0.85;
            cursor: not-allowed;
            transform: none;
        }
        
        .submit-btn.loading {
            background: #60a5fa;
        }
        
        .submit-btn.success {
            background: #10b981;
        }
        
        .submit-btn .btn-spinner {
            width: 16px;
            height: 16px;
            border: 2px solid rgba(255, 255, 255, 0.3);
            border-top-color: white;
            border-radius: 50%;
            animation: btn-spin 0.8s linear infinite;
        }
        
        @keyframes btn-spin {
            to {
                transform: rotate(360deg);
            }
        }
        
        .error {
            background: #fef2f2;
            color: #dc2626;
            padding: 12px 16px;
            border-radius: 8px;
            font-size: 14px;
            margin-top: 16px;
            border: 1px solid #fecaca;
            display: none;
        }
        
        .error.show {
            display: block;
        }
        
        .register-link {
            text-align: center;
            margin-top: 24px;
            padding-top: 24px;
            border-top: 1px solid #e5e7eb;
        }
        
        .register-link span {
            color: #666;
            font-size: 14px;
        }
        
        .register-link a {
            color: #3b82f6;
            text-decoration: none;
            font-weight: 500;
            margin-left: 4px;
        }
        
        .register-link a:hover {
            text-decoration: underline;
        }
        
        .emoji {
            font-size: 20px;
        }
        
        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.35);
            z-index: 90;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease;
        }
        
        .drawer-overlay.show {
            opacity: 1;
            visibility: visible;
        }
        
        .mobile-drawer {
            position: fixed;
            top: 0;
            right: 0;
            height: 100vh;
            width: 280px;
            background: #fff;
            box-shadow: -10px 0 30px rgba(0,0,0,0.1);
            z-index: 100;
            transform: translateX(100%);
            transition: transform 0.3s ease;
            display: flex;
            flex-direction: column;
            padding: 24px;
            gap: 18px;
            will-change: transform;
        }
        
        .mobile-drawer.show {
            transform: translateX(0);
        }
        
        .drawer-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            color: #1a1a1a;
        }
        
        .drawer-close {
            border: none;
            background: transparent;
            font-size: 24px;
            line-height: 1;
            cursor: pointer;
            color: #333;
        }
        
        .drawer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        
        .drawer-links a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 14px;
            border-radius: 12px;
            border: 1px solid #f0f0f0;
            color: #333;
            text-decoration: none;
            font-size: 15px;
            transition: background 0.2s;
        }
        
        .drawer-links a:hover {
            background: #f8fafc;
        }
        
        body.drawer-open {
            overflow: hidden;
        }
        
        /* 移动端响应式 */
        @media (max-width: 768px) {
            body {
                padding: 0;
            }
            
            .header {
                padding: 10px 16px;
                margin: 10px auto;
                width: calc(100% - 20px);
                border-radius: 16px;
            }
            
            .logo {
                font-size: 16px;
            }
            
            .logo-icon {
                width: 28px;
                height: 28px;
            }
            
            .nav-links {
                display: none;
            }
            
            .right-menu {
                gap: 0;
            }
            
            .menu-toggle {
                display: inline-flex;
                width: 38px;
                height: 38px;
                padding: 8px;
                gap: 5px;
            }
            
            .menu-toggle span {
                height: 2px;
            }

            .login-container {
                padding: 28px 20px;
                max-width: 100%;
                border-radius: 16px;
                box-shadow: 0 1px 4px rgba(0,0,0,0.06);
            }
            
            .welcome-text {
                margin-bottom: 24px;
            }
            
            .welcome-title {
                font-size: 20px;
            }
            
            .welcome-subtitle {
                font-size: 13px;
            }
            
            .form-group {
                margin-bottom: 16px;
            }
            
            .form-label {
                font-size: 13px;
                margin-bottom: 6px;
            }
            
            .form-input {
                padding: 11px 14px;
                font-size: 14px;
            }
            
            .form-hint {
                font-size: 11px;
                margin-top: 6px;
            }
            
            .submit-btn {
                padding: 13px;
                font-size: 15px;
            }
            
            .main-content {
                padding: 16px 12px 32px;
            }
        }

        @media (max-width: 480px) {
            .header {
                padding: 8px 14px;
                margin: 8px auto;
                border-radius: 14px;
            }
            
            .logo {
                font-size: 15px;
            }
            
            .logo-icon {
                width: 26px;
                height: 26px;
            }
            
            .menu-toggle {
                width: 36px;
                height: 36px;
                padding: 7px;
                gap: 4px;
            }
            
            .login-container {
                padding: 24px 18px;
            }
            
            .welcome-title {
                font-size: 19px;
            }
            
            .welcome-subtitle {
                font-size: 12px;
            }
            
            .form-input {
                padding: 10px 13px;
                font-size: 14px;
            }
            
            .submit-btn {
                font-size: 15px;
                padding: 12px;
            }
            
            .main-content {
                padding: 12px 10px 28px;
            }
        }