/* ============================================
   椪柑网 penggan.cn 前台样式
   简约大气风格
   ============================================ */

/* 重置 */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 15px;
    line-height: 1.6;
    color: #333;
    background: #fff;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 按钮 */
.btn {
    display: inline-block;
    padding: 10px 28px;
    border-radius: 4px;
    font-size: 15px;
    cursor: pointer;
    border: none;
    transition: all 0.3s;
    text-align: center;
}
.btn-primary { background: #4a9c3d; color: #fff; }
.btn-primary:hover { background: #3d8532; }
.btn-outline { background: transparent; border: 1px solid #4a9c3d; color: #4a9c3d; }
.btn-outline:hover { background: #4a9c3d; color: #fff; }
.btn-white { background: #fff; color: #4a9c3d; }
.btn-white:hover { background: #f5f5f5; }
.btn-large { padding: 14px 40px; font-size: 16px; }

/* ===== 顶部导航 ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    transition: all 0.3s;
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}
.logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.logo-icon { font-size: 26px; line-height: 1; }
.logo-text {
    font-size: 20px;
    font-weight: 700;
    color: #4a9c3d;
    margin-top: 2px;
}
.main-nav ul {
    display: flex;
    gap: 4px;
}
.main-nav a {
    display: block;
    padding: 8px 18px;
    border-radius: 4px;
    font-size: 15px;
    color: #555;
    transition: all 0.3s;
}
.main-nav a:hover, .main-nav a.active {
    color: #4a9c3d;
    background: #f0f7ee;
}
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: #4a9c3d;
}
.header-phone-text {
    display: none;
    font-size: 14px;
    color: #4a9c3d;
    font-weight: 600;
    margin-right: 8px;
}
.logo-img {
    height: 36px;
    width: auto;
    max-width: 160px;
    object-fit: contain;
}

/* 手机端搜索框 */
.mobile-search-bar {
    display: none;
    background: #fff;
    padding: 10px 0;
    border-bottom: 1px solid #f0f0f0;
}
.mobile-search-form {
    display: flex;
    gap: 0;
}
.mobile-search-form input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid #ddd;
    border-right: none;
    border-radius: 6px 0 0 6px;
    font-size: 14px;
    outline: none;
}
.mobile-search-form input:focus { border-color: #4a9c3d; }
.mobile-search-form button {
    padding: 10px 20px;
    background: #e8833a;
    color: #fff;
    border: none;
    border-radius: 0 6px 6px 0;
    font-size: 14px;
    cursor: pointer;
}
.mobile-hide {}

/* 透明导航（首页Hero模式） */
.header-transparent {
    background: transparent;
    box-shadow: none;
    position: absolute;
}
.header-transparent .logo-text { color: #fff; }
.header-transparent .main-nav a { color: rgba(255,255,255,0.9); }
.header-transparent .main-nav a:hover,
.header-transparent .main-nav a.active {
    color: #fff;
    background: rgba(255,255,255,0.15);
}
.header-transparent .menu-toggle { color: #fff; }

/* 移动端导航 */
.mobile-nav {
    display: none;
    background: #fff;
    border-top: 1px solid #eee;
    padding: 10px 0;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    z-index: 999;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.mobile-nav.show { display: block; }
.mobile-nav ul { padding: 0 20px; }
.mobile-nav a {
    display: block;
    padding: 14px 0;
    border-bottom: 1px solid #f0f0f0;
    color: #555;
}

/* ===== Hero 大屏 ===== */
.hero-banner {
    position: relative;
    min-height: 580px;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: 70px;
}
.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #2d6b23 0%, #4a9c3d 50%, #6ab85c 100%);
    z-index: 0;
}
.hero-banner .container {
    position: relative;
    z-index: 1;
}
.hero-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
    padding: 40px 0;
    text-align: center;
}
}
.hero-text { color: #fff; }
.hero-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.3;
}
.hero-subtitle {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 28px;
}
.hero-search {
    display: flex;
    max-width: 480px;
    margin: 0 auto 24px;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}
.hero-search input {
    flex: 1;
    padding: 14px 18px;
    border: none;
    font-size: 15px;
    outline: none;
}
.hero-search button {
    padding: 14px 32px;
    background: #e8833a;
    color: #fff;
    border: none;
    font-size: 15px;
    cursor: pointer;
    transition: background 0.3s;
}
.hero-search button:hover { background: #d4712a; }
.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
}
.hero-tags span {
    font-size: 14px;
    opacity: 0.9;
}
.hero-image {
    text-align: center;
}
.hero-image img {
    max-height: 420px;
    object-fit: contain;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.2));
}

/* ===== 服务优势栏 ===== */
/* ===== 服务优势栏（仅手机端显示） ===== */
.service-bar {
    display: none;
    background: #fff;
    padding: 30px 0;
    border-bottom: 1px solid #f0f0f0;
}
.service-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.service-item {
    display: flex;
    align-items: center;
    gap: 14px;
}
.service-icon {
    font-size: 32px;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f0f7ee;
    border-radius: 50%;
    flex-shrink: 0;
}
.service-info h4 {
    font-size: 16px;
    color: #333;
    margin-bottom: 2px;
}
.service-info p {
    font-size: 13px;
    color: #999;
}

/* ===== 功能导航图标区（仅手机端显示） ===== */
.quick-nav {
    display: none;
    background: #fff;
    padding: 24px 0;
    border-bottom: 1px solid #f0f0f0;
}
.quick-nav-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 12px;
}
.quick-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 10px 4px;
    border-radius: 8px;
    transition: all 0.3s;
}
.quick-nav-item:hover {
    background: #f7f8fa;
}
.quick-nav-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    background: linear-gradient(135deg, #f0f7ee, #e8f5e9);
    border-radius: 50%;
}
.quick-nav-item span {
    font-size: 13px;
    color: #555;
    text-align: center;
}

/* ===== 通用区块 ===== */
.section { padding: 50px 0; }
.section-white { background: #fff; }
.section-gray { background: #f7f8fa; }

/* ===== 新闻资讯 ===== */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 24px;
}
.filter-btn {
    padding: 6px 16px;
    border: 1px solid #ddd;
    border-radius: 20px;
    font-size: 14px;
    color: #666;
    transition: all 0.3s;
}
.filter-btn:hover { border-color: #4a9c3d; color: #4a9c3d; }
.filter-btn.active { background: #4a9c3d; color: #fff; border-color: #4a9c3d; }

.news-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}
.news-list-home { grid-template-columns: repeat(4, 1fr); }
.news-item {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    transition: all 0.3s;
}
.news-item:hover { transform: translateY(-3px); box-shadow: 0 6px 16px rgba(0,0,0,0.1); }
.news-item a { display: block; }
.news-img {
    width: 100%;
    height: 160px;
    overflow: hidden;
}
.news-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.news-content { padding: 16px; }
.news-title {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-summary {
    font-size: 13px;
    color: #888;
    line-height: 1.6;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-meta {
    display: flex;
    gap: 12px;
    font-size: 12px;
    color: #aaa;
}
.news-category {
    color: #4a9c3d;
    background: #f0f7ee;
    padding: 2px 8px;
    border-radius: 4px;
}
.news-list-simple { grid-template-columns: 1fr; gap: 12px; }
.news-item-simple { background: none; box-shadow: none; border-bottom: 1px solid #eee; border-radius: 0; padding-bottom: 12px; }
.news-item-simple:hover { transform: none; box-shadow: none; }

/* 新闻详情 */
.news-detail {
    max-width: 800px;
    margin: 0 auto;
    background: #fff;
    padding: 40px;
    border-radius: 8px;
}
.news-detail-title {
    font-size: 28px;
    font-weight: 700;
    color: #333;
    margin-bottom: 16px;
    line-height: 1.4;
}
.news-detail-meta {
    display: flex;
    gap: 16px;
    font-size: 14px;
    color: #999;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid #eee;
}
.news-detail-img {
    margin-bottom: 24px;
    border-radius: 8px;
    overflow: hidden;
}
.news-detail-img img { width: 100%; height: auto; }
.news-detail-content {
    font-size: 16px;
    line-height: 1.8;
    color: #444;
}
.news-detail-content p { margin-bottom: 16px; }
.related-news {
    max-width: 800px;
    margin: 30px auto 0;
}
.related-news h2 {
    font-size: 20px;
    margin-bottom: 16px;
    color: #333;
}

/* 留言表单提示 */
.alert {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 14px;
}
.alert-success { background: #e8f5e9; color: #2e7d32; border: 1px solid #a5d6a7; }
.alert-error { background: #ffebee; color: #c62828; border: 1px solid #ef9a9a; }

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 28px;
}
.section-heading {
    font-size: 24px;
    font-weight: 700;
    color: #333;
    position: relative;
    padding-left: 12px;
}
.section-heading::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 22px;
    background: #4a9c3d;
    border-radius: 2px;
}
.section-more-link {
    color: #4a9c3d;
    font-size: 14px;
}
.section-more-link:hover { text-decoration: underline; }

/* ===== 柑橘专区大卡片 ===== */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.feature-card {
    border-radius: 8px;
    overflow: hidden;
    background: #fff;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    transition: all 0.3s;
}
.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 28px rgba(0,0,0,0.12);
}
.feature-img {
    position: relative;
    width: 100%;
    padding-top: 65%;
    overflow: hidden;
}
.feature-img img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}
.feature-card:hover .feature-img img { transform: scale(1.05); }
.feature-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    color: #fff;
}
.feature-overlay h3 {
    font-size: 20px;
    margin-bottom: 4px;
}
.feature-overlay p {
    font-size: 13px;
    opacity: 0.9;
}
.feature-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 18px;
}
.feature-price {
    font-size: 22px;
    font-weight: 700;
    color: #e84c3d;
}
.feature-price small {
    font-size: 13px;
    font-weight: normal;
    color: #999;
}
.feature-btn {
    font-size: 14px;
    color: #4a9c3d;
    padding: 6px 16px;
    border: 1px solid #4a9c3d;
    border-radius: 4px;
}
.feature-card:hover .feature-btn {
    background: #4a9c3d;
    color: #fff;
}

/* ===== 产品网格 ===== */
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.product-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.06);
    transition: all 0.3s;
}
.product-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}
.product-img {
    position: relative;
    width: 100%;
    padding-top: 100%;
    overflow: hidden;
    background: #f5f5f5;
}
.product-img img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}
.product-card:hover .product-img img { transform: scale(1.05); }
.product-tag {
    position: absolute;
    top: 10px;
    left: 10px;
    background: #e8833a;
    color: #fff;
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 3px;
}
.product-info { padding: 14px; }
.product-name {
    font-size: 15px;
    font-weight: 600;
    color: #333;
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.product-category {
    font-size: 12px;
    color: #999;
    margin-bottom: 8px;
}
.product-price {
    display: flex;
    align-items: baseline;
    gap: 4px;
}
.product-price .price {
    font-size: 18px;
    font-weight: 700;
    color: #e84c3d;
}
.product-price .unit {
    font-size: 12px;
    color: #999;
}

/* ===== 关于带状区 ===== */
.about-band {
    background: linear-gradient(135deg, #2d6b23, #4a9c3d);
    color: #fff;
    padding: 50px 0;
    text-align: center;
}
.about-band-content { max-width: 700px; margin: 0 auto; }
.about-band h2 {
    font-size: 28px;
    margin-bottom: 16px;
}
.about-band p {
    font-size: 15px;
    opacity: 0.9;
    margin-bottom: 24px;
    line-height: 1.8;
}

/* ===== 内页横幅 ===== */
.page-banner {
    background: linear-gradient(135deg, #2d6b23, #4a9c3d);
    color: #fff;
    padding: 100px 0 50px;
    text-align: center;
    margin-top: 70px;
}
.page-banner h1 { font-size: 30px; margin-bottom: 8px; }
.page-banner p { opacity: 0.9; }

/* 面包屑 */
.breadcrumb-section {
    background: #f7f8fa;
    padding: 14px 0;
    margin-top: 70px;
    border-bottom: 1px solid #eee;
}
.breadcrumb { font-size: 14px; color: #888; }
.breadcrumb a { color: #4a9c3d; }
.breadcrumb span { color: #333; }

/* ===== 筛选栏 ===== */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 24px;
}
.filter-btn {
    padding: 8px 20px;
    border-radius: 4px;
    background: #fff;
    border: 1px solid #e0e0e0;
    font-size: 14px;
    color: #666;
    transition: all 0.3s;
}
.filter-btn:hover, .filter-btn.active {
    background: #4a9c3d;
    color: #fff;
    border-color: #4a9c3d;
}

/* ===== 分页 ===== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-top: 30px;
}
.pagination a, .pagination .current {
    padding: 8px 14px;
    border-radius: 4px;
    background: #fff;
    border: 1px solid #e0e0e0;
    font-size: 14px;
    color: #666;
}
.pagination .current {
    background: #4a9c3d;
    color: #fff;
    border-color: #4a9c3d;
}
.pagination a:hover { border-color: #4a9c3d; color: #4a9c3d; }

/* 空状态 */
.empty-state { text-align: center; padding: 60px 0; color: #999; }

/* ===== 商品详情 ===== */
.product-detail-section { margin-top: 70px; }
.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
.product-detail-img img {
    width: 100%;
    border-radius: 8px;
    aspect-ratio: 1;
    object-fit: cover;
}
.product-detail-name { font-size: 26px; margin-bottom: 8px; color: #333; }
.product-detail-category { color: #888; margin-bottom: 20px; }
.product-detail-price {
    background: #fff5f5;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: baseline;
    gap: 10px;
}
.product-detail-price .price-label { color: #888; }
.product-detail-price .price-value { font-size: 30px; font-weight: 700; color: #e84c3d; }
.product-detail-price .price-unit { color: #888; }
.product-detail-specs { margin-bottom: 20px; display: flex; gap: 10px; }
.product-detail-specs .specs-label { color: #888; }
.product-detail-actions { display: flex; gap: 12px; margin-bottom: 24px; }
.product-detail-actions .btn { flex: 1; }
.product-detail-notice {
    background: #f9f9f9;
    padding: 16px;
    border-radius: 8px;
}
.product-detail-notice p { font-size: 14px; color: #666; margin-bottom: 6px; }
.product-description {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    margin-bottom: 40px;
    border: 1px solid #f0f0f0;
}
.product-description h2 {
    font-size: 20px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid #4a9c3d;
    display: inline-block;
}
.description-content { color: #555; line-height: 1.8; }
.related-products h2 { font-size: 20px; margin-bottom: 20px; }

/* ===== 关于页面 ===== */
.about-page { margin-top: 70px; }
.about-page-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 50px;
    align-items: center;
}
.about-page-text h2 { font-size: 26px; margin-bottom: 16px; }
.about-page-desc { color: #555; line-height: 1.8; }
.about-page-image img { border-radius: 8px; width: 100%; }
.advantages { margin-bottom: 50px; }
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.advantage-item {
    text-align: center;
    padding: 30px 20px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.06);
}
.advantage-icon { font-size: 36px; margin-bottom: 12px; }
.advantage-item h3 { font-size: 17px; margin-bottom: 8px; }
.advantage-item p { font-size: 14px; color: #666; }
.origin-section {
    background: #fff;
    padding: 40px;
    border-radius: 8px;
    border: 1px solid #f0f0f0;
}
.origin-content p { color: #555; line-height: 1.8; margin-bottom: 12px; }

/* ===== 联系页面 ===== */
.contact-page { margin-top: 70px; }
.contact-page-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}
.contact-info h2, .contact-form-wrap h2 { font-size: 22px; margin-bottom: 24px; }
.contact-info-list { display: flex; flex-direction: column; gap: 16px; }
.contact-info-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 20px;
    background: #fff;
    border-radius: 8px;
    border: 1px solid #f0f0f0;
}
.contact-info-icon { font-size: 26px; }
.contact-info-text h3 { font-size: 16px; margin-bottom: 4px; }
.contact-info-text p { color: #666; }

/* 表单 */
.form-group { margin-bottom: 18px; }
.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: #444;
}
.form-group input, .form-group textarea, .form-group select {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 15px;
    font-family: inherit;
    transition: border-color 0.3s;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    outline: none;
    border-color: #4a9c3d;
}
.contact-form {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    border: 1px solid #f0f0f0;
}

/* ===== 页脚 ===== */
.site-footer {
    background: #1f2937;
    color: #9ca3af;
}
.footer-main { padding: 50px 0 30px; }
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
}
.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}
.footer-logo .logo-icon { font-size: 24px; }
.footer-logo .logo-text {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    margin-top: 0;
}
.footer-desc {
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 16px;
}
.footer-contact p {
    font-size: 14px;
    margin-bottom: 6px;
}
.footer-col h4 {
    color: #fff;
    font-size: 16px;
    margin-bottom: 16px;
}
.footer-col ul li {
    margin-bottom: 10px;
    font-size: 14px;
}
.footer-col a:hover { color: #6ab85c; }
.footer-wechat {
    font-size: 15px;
    color: #fff;
    margin-bottom: 8px;
}
.footer-tip { font-size: 13px; }

/* 友情链接 */
.footer-links {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 18px 0;
}
.friend-links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 16px;
    font-size: 13px;
}
.friend-links-label {
    color: #6b7280;
    flex-shrink: 0;
}
.friend-links a {
    color: #9ca3af;
    transition: color 0.3s;
}
.friend-links a:hover { color: #6ab85c; }

/* 版权 */
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 18px 0;
    text-align: center;
    font-size: 13px;
}
.footer-bottom p { margin-bottom: 4px; }
.footer-icp a { color: #6b7280; }
.footer-icp a:hover { color: #6ab85c; }

/* ===== 响应式 ===== */
@media (max-width: 992px) {
    .hero-content { grid-template-columns: 1fr; text-align: center; }
    .hero-search { margin: 0 auto 24px; }
    .hero-tags { justify-content: center; }
    .hero-image img { max-height: 280px; margin: 0 auto; }
    .hero-title { font-size: 32px; }
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .product-grid, .advantage-grid { grid-template-columns: repeat(3, 1fr); }
    .service-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .about-page-content, .product-detail, .contact-page-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .main-nav { display: none; }
    .menu-toggle { display: block; }
    .header-phone-text { display: block; margin-left: auto; font-size: 13px; }
    .menu-toggle { display: none !important; }
    .quick-nav { display: block; }
    .service-bar { display: block; }
    /* 手机端顶部栏不透明 */
    .site-header { background: #fff; box-shadow: 0 2px 8px rgba(0,0,0,0.08); position: relative; }
    .site-header .logo-text, .site-header .menu-toggle { color: #4a9c3d; }
    .header-transparent { background: #fff; }
    .hero-banner { padding-top: 20px; }
    .mobile-search-bar { display: block; }
    .mobile-hide { display: none !important; }
    .hero-banner { min-height: auto; padding-top: 60px; padding-bottom: 30px; }
    .hero-content { gap: 20px; padding: 20px 0; }
    .hero-title { font-size: 24px; }
    .hero-subtitle { font-size: 14px; margin-bottom: 18px; }
    .hero-search { max-width: 100%; }
    .hero-search input { padding: 12px 14px; font-size: 14px; }
    .hero-search button { padding: 12px 20px; font-size: 14px; }
    .hero-tags { gap: 10px; }
    .hero-tags span { font-size: 12px; }
    .hero-image { display: none; }
    .quick-nav-grid { grid-template-columns: repeat(4, 1fr); gap: 8px; }
    .quick-nav-icon { width: 44px; height: 44px; font-size: 20px; }
    .quick-nav-item span { font-size: 12px; }
    .section { padding: 28px 0; }
    .section-heading { font-size: 18px; }
    .feature-grid { grid-template-columns: 1fr; gap: 14px; }
    .product-grid, .advantage-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .service-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .service-icon { width: 44px; height: 44px; font-size: 24px; }
    .service-info h4 { font-size: 14px; }
    .service-info p { font-size: 12px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
    .footer-nav-mobile-hide { display: none; }
    .footer-about { grid-column: 1 / -1; }
    .footer-desc { display: none; }
    .footer-contact p { font-size: 13px; margin-bottom: 4px; }
    .footer-links { padding: 12px 0; }
    .friend-links { gap: 8px; }
    .friend-links a { font-size: 12px; }
    .footer-bottom { padding: 12px 0; font-size: 12px; }
    .page-banner { padding: 80px 0 30px; }
    .page-banner h1 { font-size: 22px; }
    .product-detail-name { font-size: 20px; }
    .header-inner { height: 60px; }
    .mobile-nav { top: 60px; }
    .breadcrumb-section, .product-detail-section, .about-page, .contact-page { margin-top: 60px; }
    .about-band { padding: 36px 0; }
    .about-band h2 { font-size: 22px; }
    /* 新闻区块手机端绿色带状样式 */
    .news-section {
        background: linear-gradient(135deg, #4a9c3d, #3d8b32);
        padding: 28px 0;
    }
    .news-section .section-heading { color: #fff; }
    .news-section .section-more-link { color: rgba(255,255,255,0.8); }
    .news-section .news-item {
        background: rgba(255,255,255,0.95);
    }
    .news-section .news-list-home { grid-template-columns: 1fr; gap: 12px; }
    .news-section .news-img { height: 140px; }
    .news-section .news-title { font-size: 15px; }
}

@media (max-width: 480px) {
    .container { padding: 0 14px; }
    .hero-title { font-size: 20px; }
    .hero-subtitle { font-size: 13px; }
    .quick-nav-grid { grid-template-columns: repeat(4, 1fr); gap: 6px; }
    .quick-nav-icon { width: 40px; height: 40px; font-size: 18px; }
    .quick-nav-item span { font-size: 11px; }
    .product-grid, .advantage-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
    .product-info { padding: 8px; }
    .product-name { font-size: 13px; }
    .product-price .price { font-size: 16px; }
    .service-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .footer-grid { grid-template-columns: 1fr; gap: 20px; }
    .footer-about { grid-column: auto; }
    .feature-overlay h3 { font-size: 16px; }
    .feature-price { font-size: 18px; }
}