/* 基础样式 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "PingFang SC", "Helvetica Neue", Arial, sans-serif;
        }
        
        body {
            background-color: #fff;
            color: #333;
            line-height: 1.6;
        }
        
        /* 总容器 */
        .wrapper {
            width: 100%;
            min-height: 100vh;
            padding-bottom: 60px; /* 为底部导航留出空间 */
        }
        
        /* Header部分 */
        .wrapper header {
            width: 100%;
            height: 12vw;
            background: linear-gradient(135deg, #0097FF, #005fcc);
            color: #fff;
            font-size: 4.8vw;
            font-weight: bold;
            position: fixed;
            left: 0;
            top: 0;
            z-index: 1000;
            display: flex;
            justify-content: center;
            align-items: center;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }
        
        /* 表单容器 */
        .form-container {
            width: 100%;
            padding: 6vw;
            margin-top: 12vw;
        }
        
        /* 表单样式 */
        .form-box {
            width: 100%;
            background: #fff;
            border-radius: 12px;
            padding: 6vw 4vw;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
            margin-bottom: 4vw;
        }
        
        .form-box li {
            display: flex;
            flex-direction: column;
            margin-bottom: 6vw;
            position: relative;
        }
        
        .form-box li .title {
            font-size: 3.8vw;
            font-weight: 600;
            margin-bottom: 2vw;
            color: #333;
        }
        
        .form-box li .content {
            position: relative;
        }
        
        .form-box li .content input {
            width: 100%;
            height: 12vw;
            border: 1px solid #e0e0e0;
            border-radius: 8px;
            padding: 0 4vw;
            font-size: 4vw;
            outline: none;
            transition: border 0.3s;
        }
        
        .form-box li .content input:focus {
            border-color: #0097FF;
            box-shadow: 0 0 0 2px rgba(0, 151, 255, 0.1);
        }
        
        .form-box li .content input.error {
            border-color: #ff4d4f;
        }
        
        /* 密码可见性切换 */
        .password-toggle {
            position: absolute;
            right: 4vw;
            top: 50%;
            transform: translateY(-50%);
            color: #999;
            font-size: 4.5vw;
            cursor: pointer;
        }
        
        /* 验证码相关样式 */
        .code-input-container {
            display: flex;
            gap: 3vw;
        }
        
        .code-input-container input {
            flex: 1;
        }
        
        .get-code-btn {
            width: 30vw;
            height: 12vw;
            background-color: #f5f5f5;
            border: 1px solid #e0e0e0;
            border-radius: 8px;
            font-size: 3.6vw;
            color: #666;
            cursor: pointer;
            transition: all 0.3s;
        }
        
        .get-code-btn:not(.disabled):hover {
            background-color: #e0e0e0;
        }
        
        .get-code-btn.disabled {
            background-color: #f5f5f5;
            color: #ccc;
            cursor: not-allowed;
        }
        
        .get-code-btn.primary {
            background-color: #0097FF;
            color: #fff;
            border-color: #0097FF;
        }
        
        /* 单选按钮样式 */
        .radio-group {
            display: flex;
            gap: 6vw;
        }
        
        .radio-option {
            display: flex;
            align-items: center;
            font-size: 3.8vw;
        }
        
        .radio-option input {
            width: 4.5vw;
            height: 4.5vw;
            margin-right: 2vw;
        }
        
        /* 按钮样式 */
        .button-login, .button-register {
            width: 100%;
            margin-top: 6vw;
        }
        
        .button-login button, .button-register button {
            width: 100%;
            height: 12vw;
            border: none;
            border-radius: 8px;
            font-size: 4.5vw;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
        }
        
        .button-login button {
            background: linear-gradient(135deg, #38CA73, #2db563);
            color: #fff;
            box-shadow: 0 4px 12px rgba(56, 202, 115, 0.3);
        }
        
        .button-login button:hover {
            background: linear-gradient(135deg, #2db563, #27a055);
            transform: translateY(-2px);
            box-shadow: 0 6px 15px rgba(56, 202, 115, 0.4);
        }
        
        .button-register button {
            background-color: #f5f5f5;
            color: #666;
            border: 1px solid #e0e0e0;
        }
        
        .button-register button:hover {
            background-color: #eaeaea;
        }
        
        /* 第三方登录 */
        .third-party-auth {
            margin-top: 8vw;
            text-align: center;
        }
        
        .divider {
            display: flex;
            align-items: center;
            margin: 6vw 0;
            color: #999;
            font-size: 3.6vw;
        }
        
        .divider::before, .divider::after {
            content: "";
            flex: 1;
            height: 1px;
            background-color: #e0e0e0;
        }
        
        .divider span {
            padding: 0 4vw;
        }
        
        .third-party-buttons {
            display: flex;
            justify-content: center;
            gap: 6vw;
        }
        
        .third-party-btn {
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 3vw;
            border: 1px solid #e0e0e0;
            border-radius: 8px;
            background: #fff;
            cursor: pointer;
            transition: all 0.3s;
        }
        
        .third-party-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
        }
        
        .third-party-btn i {
            font-size: 8vw;
            margin-bottom: 2vw;
        }
        
        .third-party-btn.wechat i {
            color: #09BB07;
        }
        
        .third-party-btn.alipay i {
            color: #0097FF;
        }
        
        .third-party-btn span {
            font-size: 3.2vw;
            color: #666;
        }
        
        /* 验证提示信息 */
        .validation-message {
            font-size: 3.2vw;
            margin-top: 1vw;
            height: 4vw;
            display: flex;
            align-items: center;
        }
        
        .validation-message.error {
            color: #ff4d4f;
        }
        
        .validation-message.success {
            color: #52c41a;
        }
        
        /* 底部菜单部分 */
        .footer { 
            display: flex; 
            justify-content: space-around; 
            background-color: #FFFFFF; 
            padding: 10px 16px; 
            border-top: 1px solid #eee;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            max-width: 750px;
            margin: 0 auto;
            box-shadow: 0 -2px 4px rgba(0,0,0,0.05);
            z-index: 1000;
        }
        
        .footer .item { 
            display: flex; 
            flex-direction: column; 
            align-items: center; 
            cursor: pointer;
            transition: color 0.3s;
            flex: 1;
            text-decoration: none;
            color: #666;
        }
        
        .footer .item.active {
            color: #0099FF;
        }
        
        .footer .item i { 
            font-size: 22px; 
            margin-bottom: 4px;
        }
        
        .footer .item span { 
            font-size: 12px; 
        }
        
        /* 响应式设计 */
        @media (min-width: 768px) {
            .wrapper {
                max-width: 500px;
                margin: 0 auto;
                box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
            }
            
            .wrapper header {
                height: 60px;
                font-size: 24px;
            }
            
            .form-container {
                margin-top: 60px;
                padding: 30px;
            }
            
            .form-box li {
                margin-bottom: 25px;
            }
            
            .form-box li .title {
                font-size: 18px;
                margin-bottom: 8px;
            }
            
            .form-box li .content input {
                height: 50px;
                font-size: 16px;
            }
            
            .password-toggle {
                font-size: 18px;
            }
            
            .get-code-btn {
                width: 150px;
                height: 50px;
                font-size: 16px;
            }
            
            .button-login button, .button-register button {
                height: 50px;
                font-size: 18px;
            }
            
            .validation-message {
                font-size: 14px;
                height: 18px;
            }
        }