/* 通用样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: #f8f9fa;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

/* 登录提示页面样式 */
.notice-box {
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    padding: 48px 40px;
    max-width: 420px;
    width: 100%;
    text-align: center;
}

.icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.notice-box h2 {
    color: #1a1a1a;
    margin-bottom: 12px;
    font-size: 20px;
    font-weight: 600;
}

.message {
    color: #666;
    margin-bottom: 32px;
    font-size: 15px;
    line-height: 1.6;
}

.countdown {
    color: #000;
    font-weight: 500;
}

.login-btn {
    background: #000;
    color: white;
    border: none;
    padding: 14px 48px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
    text-decoration: none;
    display: inline-block;
}

.login-btn:hover {
    background: #333;
}

/* 平台选择页面样式 */
.container {
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    padding: 48px 40px;
    max-width: 520px;
    width: 100%;
    text-align: center;
    position: relative;
}

h1 {
    color: #1a1a1a;
    margin-bottom: 8px;
    font-size: 24px;
    font-weight: 600;
    margin: 30px 0;
}

.description {
    color: #666;
    margin-bottom: 40px;
    font-size: 15px;
    line-height: 1.5;
}

.platform-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

.platform-btn {
    background: white;
    border: 2px solid #e5e5e5;
    padding: 20px 24px;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 16px;
}

.platform-btn:hover {
    border-color: #000;
    transform: translateY(-4px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.platform-icon {
    width: 56px;
    height: 56px;
    background: #f8f9fa;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.platform-icon img {
    max-width: 40px;
    max-height: 40px;
}

.platform-name {
    font-size: 18px;
    font-weight: 600;
    color: #1a1a1a;
    text-align: left;
}

/* 下载页面样式 */
.download-container {
    max-width: 480px;
    position: relative;
}

.back-btn {
    position: absolute;
    top: 20px;
    left: 20px;
    background: white;
    border: 1px solid #e5e5e5;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 14px;
    color: #666;
    cursor: pointer;
    transition: all 0.2s;
}

.back-btn:hover {
    color: #000;
    border-color: #d0d0d0;
    background: #fafafa;
}

.home-btn {
    position: absolute;
    top: 20px;
    left: 120px;
    background: white;
    border: 1px solid #e5e5e5;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 14px;
    color: #666;
    cursor: pointer;
    transition: all 0.2s;
}

.home-btn:hover {
    color: #000;
    border-color: #d0d0d0;
    background: #fafafa;
}

#qrcode {
    margin: 0 auto 24px;
    padding: 16px;
    background: #fff;
    border: 1px solid #e5e5e5;
    border-radius: 8px;
    display: inline-block;
}

.tips {
    color: #999;
    font-size: 13px;
}

.download-btn {
    background: #000;
    color: white;
    border: none;
    padding: 14px 48px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
    text-decoration: none;
    display: inline-block;
}

.download-btn:hover {
    background: #333;
}

.download-btn:active {
    background: #000;
}

.platform-info {
    margin-top: 24px;
    padding: 12px;
    background: #f8f9fa;
    border-radius: 6px;
    color: #666;
    font-size: 13px;
    line-height: 1.6;
}

/* 响应式设计 */
@media (max-width: 480px) {
    .container {
        padding: 40px 24px;
    }
    
    .back-btn {
        top: 16px;
        left: 16px;
    }

    .home-btn {
        top: 16px;
        left: 110px;
    }

    h1 {
        font-size: 22px;
    }
    
    .platform-btn {
        padding: 16px 20px;
    }
    
    .platform-icon {
        width: 48px;
        height: 48px;
    }
    
    .platform-icon img {
        max-width: 32px;
        max-height: 32px;
    }
    
    .platform-name {
        font-size: 16px;
    }
}