/* 公共样式 - common.css */

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

body {
    font-family: "Microsoft YaHei", Arial, sans-serif;
    background-color: #f5f5f5;
    color: #333;
}

.container {
    width: 1200px;
    margin: 0 auto;
}

/* 头部样式 */
.header {
    background-color: #fff;
    border-bottom: 2px solid #e53937;
}

.top-bar {
    background-color: #f8f8f8;
    padding: 8px 0;
    font-size: 12px;
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-links a {
    color: #666;
    text-decoration: none;
    margin-right: 15px;
    transition: color 0.3s;
}

.top-links a:hover {
    color: #e53937;
}

.top-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.top-right a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s;
}

.top-right a:hover {
    color: #e53937;
}

.phone {
    color: #e53937;
    font-weight: bold;
}

.main-header {
    padding: 20px 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    color: #e53937;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.3s;
}

.logo:hover {
    transform: scale(1.02);
}

.search-box {
    flex: 1;
    margin: 0 30px;
    position: relative;
}

.search-input {
    width: 100%;
    padding: 12px 120px 12px 15px;
    border: 2px solid #e53937;
    border-radius: 4px;
    font-size: 14px;
    transition: all 0.3s;
}

.search-input:focus {
    outline: none;
    box-shadow: 0 0 5px rgba(229, 57, 55, 0.3);
}

.search-btn {
    position: absolute;
    right: 0;
    top: 0;
    height: 100%;
    padding: 0 30px;
    background-color: #e53937;
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
}

.search-btn:hover {
    background-color: #d32f2f;
}

/* 导航栏 */
.nav-bar {
    background-color: #e53937;
}

.nav-menu {
    display: flex;
    list-style: none;
}

.nav-menu li {
    flex: 1;
    text-align: center;
}

.nav-menu a {
    display: block;
    padding: 15px 0;
    color: #fff;
    text-decoration: none;
    font-size: 15px;
    transition: all 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    background-color: #d32f2f;
}

/* 页面内容容器 */
.page-content {
    display: none;
    min-height: 600px;
    padding: 20px 0;
}

.page-content.active {
    display: block;
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* 页脚 */
.footer {
    background-color: #333;
    color: #999;
    padding: 30px 0;
    margin-top: 30px;
    font-size: 13px;
}

.footer-links {
    text-align: center;
    margin-bottom: 15px;
}

.footer-links a {
    color: #999;
    text-decoration: none;
    margin: 0 10px;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #fff;
}

.footer-info {
    text-align: center;
    line-height: 1.8;
}

/* 通用卡片样式 */
.card {
    background-color: #fff;
    border-radius: 8px;
    padding: 30px;
    margin-bottom: 30px;
}

/* 标题样式 */
.section-title {
    font-size: 22px;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e53937;
    color: #333;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: #e53937;
    color: #fff;
}

.btn-primary:hover {
    background-color: #d32f2f;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(229, 57, 55, 0.3);
}

.btn-secondary {
    background-color: #019EFF;
    color: #fff;
}

.btn-secondary:hover {
    background-color: #0184d6;
    transform: translateY(-2px);
}

/* 徽章样式 */
.badge {
    display: inline-block;
    padding: 3px 10px;
    background-color: #e53937;
    color: #fff;
    border-radius: 3px;
    font-size: 12px;
    margin-right: 10px;
}

.badge.new {
    background-color: #e53937;
}

.badge.hot {
    background-color: #ff9800;
}

.badge.success {
    background-color: #00a854;
}

/* 网格布局 */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

/* 响应式 */
@media (max-width: 1200px) {
    .container {
        width: 100%;
        padding: 0 20px;
    }
}

@media (max-width: 768px) {
    .grid-4, .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .grid-2 {
        grid-template-columns: 1fr;
    }
    
    .nav-menu {
        flex-wrap: wrap;
    }
    
    .nav-menu li {
        flex: 0 0 33.333%;
    }
}

@media (max-width: 480px) {
    .grid-4, .grid-3, .grid-2 {
        grid-template-columns: 1fr;
    }
    
    .nav-menu li {
        flex: 0 0 50%;
    }
}