:root {
    --primary: #1A5CBF;
    --secondary: #e9f2f9;
    --dark: #1A5CBF;
    --light: #1A5CBF;
    --gray: #6b7280;
}

.page-header {
      height: 200px;
      background: linear-gradient(rgba(14, 30, 80, 0.1), rgba(21, 44, 124, 0.1)), url(/2026/images/about.jpg);
      background-size: cover;
      background-position: center;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      color: white;
      margin-bottom: 0px;
      margin-top: -40px;
    }

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'MiSans', sans-serif;
}

body {
    background-color: #fff;
    color: #333;
    line-height: 1.6;
}

html {
    scroll-behavior: smooth;
}

a {
    text-decoration: none;
    color: inherit;
}

/* 头部导航 */
header {
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1px 15px;
    max-width: 1200px;
    margin: 0 auto;
    
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
}

.menu-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #ff9800;
}

.nav-links {
    display: none;
    background: var(--light);
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
}

.nav-links.active {
    display: block;
}

.nav-links ul {
    list-style: none;
}

.nav-links li {
    border-bottom: 1px solid #eee;
}

.nav-links a {
    display: block;
    padding: 15px 5%;
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    transition: background 0.3s;
    background: #f9f9f9;
    text-align: center;
}

.nav-links a:hover {
    background: var(--secondary);
}

/* 主内容区 */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0px 0;
}

.hero {
    background: #1A5CBF;
    color: white;
    padding: 60px 20px;
    /* border-radius: 10px; */
    text-align: center;
    margin-top: -40px;
    height: 100vh;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 5px;
    font-weight: 300;
}

.weixin {
    padding: 10px;
    background-color: #FFF;
    width: 120px;
    margin: auto;
    height: 120px;
    margin-top: 50px;
    border-radius: 5px;
}

.btn {
    display: inline-block;
    background: var(--light);
    color: var(--primary);
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin: 50px 0;
}

.feature-card {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--dark);
}

/* 底部区域 */
footer {
    background: var(--dark);
    color: white;
    padding: 40px 5% 20px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.footer-section h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    position: relative;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 50px;
    height: 3px;
    background: var(--primary);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #cbd5e0;
    text-decoration: none;
    transition: 0.3s;
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

.contact-info {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
}

.contact-icon {
    margin-right: 10px;
    color: var(--primary);
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 30px;
    color: #a0aec0;
    font-size: 0.9rem;
}

.jieshao {
    text-indent: 2em;
    line-height: 30px;
}

/* 内容卡片 */
.content-card {
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    padding: 30px;
    margin-bottom: 40px;
    line-height: 1.8;
}

/* 图文混排 */
.image-text {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin: 40px 0;
}

.image-text img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

/* 新闻和产品网格 */
.grid-view {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 0px 0;
    padding: 10px;
}

.grid-item {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

.grid-item:hover {
    transform: translateY(-5px);
}

.grid-item img {
    width: 100%;
    object-fit: cover;
    border-bottom: 1px solid #eee;
}

.grid-content {
    padding: 20px;
}

.grid-content h3 {
    margin-bottom: 10px;
    font-size: 1.3rem;
    color: var(--dark);
}

.grid-meta {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.grid-price {
    color: var(--primary);
    font-weight: bold;
    font-size: 1.1rem;
}

/* 联系表单 */
.contact-form {
    display: grid;
    gap: 20px;
}

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

.form-group label {
    margin-bottom: 8px;
    font-weight: 500;
}

.form-control {
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 1rem;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
}

.form-btn {
    background: var(--primary);
    color: white;
    border: none;
    padding: 14px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: background 0.3s;
}

.form-btn:hover {
    background: var(--dark);
}

.map-container {
    height: 300px;
    background: #eee;
    border-radius: 8px;
    margin-top: 30px;
    overflow: hidden;
}

/* === 产品分类菜单 === */
.category-menu {
    overflow-x: auto;
    padding-bottom: 10px;
    margin-bottom: 30px;
    scrollbar-width: none;
    /* Firefox */
}

.category-menu::-webkit-scrollbar {
    display: none;
    /* Chrome/Safari */
}

.category-filters {
    display: flex;
    gap: 10px;
    padding: 0 10px;
}

.filter-btn {
    white-space: nowrap;
    padding: 8px 20px;
    background: white;
    border: 1px solid #ddd;
    border-radius: 30px;
    color: var(--dark);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}



.grid-item {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

.grid-item:hover {
    transform: translateY(-5px);
}



.grid-content {
    padding: 20px;
}

.grid-content h3 {
    margin-bottom: 10px;
    font-size: 1.3rem;
    color: var(--dark);
}

.grid-price {
    color: var(--primary);
    font-weight: bold;
    font-size: 1.1rem;
    margin-top: 8px;
}

.product-specs {
    color: var(--gray);
    font-size: 0.9rem;
    margin: 8px 0;
}

/* 底部菜单样式 */
.bottom-menu {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: white;
    display: flex;
    border-top: 1px solid #eee;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.08);
    z-index: 100;
}

.menu-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 8px 0;
    position: relative;
    transition: all 0.3s ease;
}

.menu-item.active {
    color: #1890ff;
}

.menu-item:active {
    transform: scale(0.95);
}

.menu-icon {
    font-size: 20px;
    margin-bottom: 4px;
    transition: all 0.3s ease;
}

.menu-label {
    font-size: 12px;
}

.indicator {
    position: absolute;
    top: 6px;
    right: 20%;
    width: 6px;
    height: 6px;
    background: #ff4d4f;
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.3s;
}

.menu-item.has-notice .indicator {
    opacity: 1;
}

/* 产品网格 - 一行两列 */
.product-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
    margin-bottom: 40px;
}

.product-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
}

.product-image {
    position: relative;
    padding-top: 100%;
    /* 1:1正方形比例 */
    overflow: hidden;
}

.product-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-info {
    padding: 15px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.product-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 10px;
    flex-grow: 1;
}

.product-specs {
    color: var(--gray);
    font-size: 0.85rem;
    margin-bottom: 12px;
}

.product-price {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--primary);
    margin-top: 10px;
}

.btn-detail {
    display: block;
    background: var(--dark);
    color: white;
    text-align: center;
    padding: 10px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    margin-top: 12px;
    transition: background 0.3s;
}

.btn-detail:hover {
    background: var(--primary);
}