/* style.css - 用于index.html */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
    min-height: 100vh;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
}

/* 头部样式 */
.header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #f0f0f0;
}

.header h1 {
    color: #07c160;
    font-size: 24px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.header .subtitle {
    color: #666;
    font-size: 14px;
}

/* 区块样式 */
.section {
    background: white;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 20px;
    border: 1px solid #e8e8e8;
}

.section h2 {
    color: #333;
    font-size: 18px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* 书籍网格 */
.books-grid {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

/* 订单汇总 */
.order-summary {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 20px;
    margin-top: 20px;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid #e8e8e8;
}

.summary-row:last-child {
    border-bottom: none;
}

/* 表单样式 */
.form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 500;
    color: #333;
    font-size: 15px;
}

.form-group input {
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: #07c160;
    box-shadow: 0 0 0 2px rgba(7, 193, 96, 0.1);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }

    .header h1 {
        font-size: 20px;
    }

    .section {
        padding: 15px;
    }
}

@media (max-width: 480px) {
    .books-grid {
        grid-template-columns: 1fr;
    }
}