/* ===== 全局重置 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 14px; color: #333; background: #f5f6f8; }
a { text-decoration: none; color: #333; }
a:hover { color: #1e6fff; }
img { border: none; max-width: 100%; }
ul, li { list-style: none; }
.container { width: 1200px; margin: 0 auto; }

/* ===== 按钮 ===== */
.btn { display: inline-block; padding: 8px 20px; border-radius: 4px; cursor: pointer; border: none; font-size: 14px; }
.btn-primary { background: #1e6fff; color: #fff; }
.btn-primary:hover { background: #155fe0; color: #fff; }
.btn-default { background: #fff; color: #666; border: 1px solid #ddd; }
.btn-danger { background: #ff4d4f; color: #fff; }
.btn-success { background: #52c41a; color: #fff; }

/* ===== 主站样式 ===== */
.main-header { background: #1a2332; color: #fff; padding: 15px 0; }
.top-bar { display: flex; align-items: center; justify-content: space-between; }
.logo-main { font-size: 22px; font-weight: bold; color: #fff; }
.search-box { display: flex; }
.search-box input { width: 300px; height: 36px; padding: 0 15px; border: none; border-radius: 3px 0 0 3px; }
.search-box button { height: 36px; padding: 0 20px; background: #d4a853; color: #fff; border: none; border-radius: 0 3px 3px 0; cursor: pointer; }
.user-links a { color: rgba(255,255,255,0.8); margin-left: 15px; }

.main-nav { background: #fff; border-bottom: 1px solid #eee; }
.main-nav a { display: inline-block; padding: 15px 25px; color: #333; font-size: 15px; }
.main-nav a.active, .main-nav a:hover { color: #1e6fff; border-bottom: 2px solid #1e6fff; }

.main-card { background: #fff; border-radius: 8px; padding: 20px; margin-bottom: 20px; }
.card-title { font-size: 18px; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 1px solid #eee; }

.city-links a { display: inline-block; padding: 6px 12px; margin: 5px; background: #f5f6f8; border-radius: 4px; font-size: 13px; }
.city-links a:hover { background: #1e6fff; color: #fff; }

.company-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 15px; }
.company-item { padding: 15px; border: 1px solid #eee; border-radius: 6px; }
.company-item .name { font-size: 15px; font-weight: bold; margin-bottom: 8px; }
.company-item .city { font-size: 12px; color: #999; margin-bottom: 5px; }
.company-item .keyword { font-size: 13px; color: #666; }
.company-item .phone { font-size: 13px; color: #d4a853; margin-top: 5px; }

.news-list-main li { padding: 10px 0; border-bottom: 1px dashed #eee; display: flex; justify-content: space-between; }
.news-list-main li:last-child { border-bottom: none; }
.news-list-main .date { color: #999; font-size: 12px; }

/* 首页资讯两列布局 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px 25px;
}
.news-grid-item {
    padding: 12px 0;
    border-bottom: 1px dashed #eee;
}
.news-grid-title {
    display: block;
    color: #333;
    text-decoration: none;
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 8px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    transition: color 0.3s;
}
.news-grid-title:hover {
    color: #d4a853;
}
.news-grid-date {
    font-size: 12px;
    color: #999;
    display: block;
}
.news-grid-info {
    font-size: 12px;
    color: #999;
    display: flex;
    gap: 12px;
}
.news-grid-city {
    color: #1e6fff;
}
.news-grid-company {
    color: #d4a853;
}

.main-footer { background: #1a2332; color: rgba(255,255,255,0.6); padding: 30px 0; text-align: center; margin-top: 30px; }

/* ===== 企业站样式（深色高端风）===== */
.site-header { background: #1a2332; position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 10px rgba(0,0,0,0.1); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.site-logo { color: #fff; font-size: 18px; font-weight: bold; }
.site-logo span { color: #d4a853; }
.site-nav a { color: rgba(255,255,255,0.85); margin-left: 30px; font-size: 15px; }
.site-nav a:hover, .site-nav a.active { color: #d4a853; }
.site-phone { background: #d4a853; color: #fff; padding: 8px 18px; border-radius: 30px; font-size: 14px; }

.site-banner { background: linear-gradient(135deg, #1a2332 0%, #2c3e50 100%); color: #fff; padding: 80px 0; }
.site-banner h1 { font-size: 42px; margin-bottom: 20px; }
.site-banner h1 .gold { color: #d4a853; }
.site-banner .tags { margin-bottom: 25px; }
.site-banner .tags span { display: inline-block; padding: 6px 15px; background: rgba(212,168,83,0.2); color: #d4a853; border-radius: 20px; margin-right: 10px; font-size: 13px; }
.site-banner .desc { font-size: 16px; color: rgba(255,255,255,0.7); line-height: 1.8; max-width: 700px; margin-bottom: 30px; }
.site-banner .stats { display: flex; gap: 40px; }
.site-banner .stats .item .num { font-size: 32px; font-weight: bold; color: #d4a853; }
.site-banner .stats .item .label { font-size: 13px; color: rgba(255,255,255,0.6); }

.section-title { text-align: center; margin-bottom: 40px; }
.section-title h2 { font-size: 30px; color: #1a2332; margin-bottom: 15px; }
.section-title .line { width: 60px; height: 3px; background: #d4a853; margin: 0 auto; }

.about-section { padding: 70px 0; background: #fff; }
.about-box { display: flex; gap: 50px; align-items: center; }
.about-box .text { flex: 1; }
.about-box .text h3 { font-size: 24px; margin-bottom: 20px; color: #1a2332; }
.about-box .text p { color: #666; line-height: 2; font-size: 15px; margin-bottom: 15px; }
.about-box .hotline { background: #f8f5ee; padding: 15px 25px; border-left: 4px solid #d4a853; margin-top: 20px; }
.about-box .hotline .label { font-size: 13px; color: #999; }
.about-box .hotline .num { font-size: 24px; color: #d4a853; font-weight: bold; }
.about-box .img { flex: 1; }
.about-box .img img { width: 100%; border-radius: 10px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); }

.product-section { padding: 70px 0; background: #f8f9fb; }
.product-series { margin-bottom: 40px; }
.series-title { margin-bottom: 20px; display: flex; align-items: center; }
.series-title h3 { font-size: 20px; color: #1a2332; }
.series-title .tag { display: inline-block; padding: 3px 10px; background: #d4a853; color: #fff; font-size: 12px; border-radius: 3px; margin-left: 10px; }
.product-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.product-card { background: #fff; border-radius: 8px; overflow: hidden; transition: all 0.3s; }
.product-card:hover { transform: translateY(-5px); box-shadow: 0 10px 25px rgba(0,0,0,0.1); }
.product-card .img { height: 180px; overflow: hidden; background: #f5f5f5; }
.product-card .img img { width: 100%; height: 100%; object-fit: cover; }
.product-card .info { padding: 15px; }
.product-card .name { font-size: 15px; font-weight: bold; margin-bottom: 8px; color: #1a2332; }
.product-card .params { font-size: 12px; color: #999; }

.news-section { padding: 70px 0; background: #fff; }
.news-list-page { display: grid; grid-template-columns: repeat(3, 1fr); gap: 25px; }
.news-item { background: #fff; border-radius: 8px; overflow: hidden; border: 1px solid #eee; }
.news-item .img { height: 160px; overflow: hidden; background: #f5f5f5; }
.news-item .img img { width: 100%; height: 100%; object-fit: cover; }
.news-item .info { padding: 15px; }
.news-item .title { font-size: 15px; margin-bottom: 10px; line-height: 1.5; height: 45px; overflow: hidden; }
.news-item .time { font-size: 12px; color: #999; }

.article-detail { padding: 50px 0; background: #fff; }
.article-detail .title { font-size: 28px; margin-bottom: 20px; text-align: center; }
.article-detail .meta { text-align: center; color: #999; font-size: 13px; margin-bottom: 30px; padding-bottom: 20px; border-bottom: 1px solid #eee; }
.article-detail .content { font-size: 16px; line-height: 2; color: #333; }
.article-detail .content p { margin-bottom: 15px; }

.contact-section { padding: 70px 0; background: #f8f9fb; }
.contact-boxes { display: flex; gap: 40px; }
.contact-info { flex: 1; background: #fff; padding: 35px; border-radius: 10px; }
.contact-info h3 { font-size: 22px; margin-bottom: 25px; color: #1a2332; }
.contact-info ul li { padding: 12px 0; border-bottom: 1px dashed #eee; display: flex; }
.contact-info ul li:last-child { border-bottom: none; }
.contact-info .label { width: 80px; color: #999; }
.contact-info .val { flex: 1; color: #333; }

.contact-form { flex: 1; background: #fff; padding: 35px; border-radius: 10px; }
.contact-form h3 { font-size: 22px; margin-bottom: 25px; color: #1a2332; }
.contact-form input, .contact-form textarea { width: 100%; padding: 12px 15px; border: 1px solid #ddd; border-radius: 6px; margin-bottom: 15px; font-size: 14px; font-family: inherit; }
.contact-form textarea { height: 120px; resize: vertical; }
.contact-form button { width: 100%; padding: 12px; background: #d4a853; color: #fff; border: none; border-radius: 6px; font-size: 16px; cursor: pointer; }
.contact-form button:hover { background: #c49a45; }

.site-footer { background: #1a2332; color: rgba(255,255,255,0.6); padding: 30px 0; text-align: center; font-size: 13px; }
.site-footer p { margin-bottom: 8px; }

/* ===== 分页 ===== */
.pagination { text-align: center; margin-top: 30px; }
.pagination a, .pagination .current { display: inline-block; padding: 6px 12px; margin: 0 3px; border: 1px solid #ddd; border-radius: 4px; }
.pagination .current { background: #1e6fff; color: #fff; border-color: #1e6fff; }

/* ===== 后台样式 ===== */
.login-page { background: #f0f2f5; display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-box { background: #fff; padding: 40px; border-radius: 10px; box-shadow: 0 5px 20px rgba(0,0,0,0.08); width: 380px; }
.login-box h2 { text-align: center; margin-bottom: 30px; color: #1a2332; }
.login-box input { width: 100%; padding: 12px 15px; border: 1px solid #ddd; border-radius: 6px; margin-bottom: 15px; font-size: 14px; }
.login-box button { width: 100%; padding: 12px; background: #1e6fff; color: #fff; border: none; border-radius: 6px; font-size: 16px; cursor: pointer; }
.login-box button:hover { background: #155fe0; }

.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar { width: 200px; background: #1a2332; color: #fff; }
.admin-sidebar .logo { padding: 20px; font-size: 16px; font-weight: bold; border-bottom: 1px solid rgba(255,255,255,0.1); }
.admin-sidebar ul li a { display: block; padding: 12px 20px; color: rgba(255,255,255,0.7); font-size: 14px; }
.admin-sidebar ul li a:hover, .admin-sidebar ul li a.active { background: rgba(255,255,255,0.1); color: #fff; border-left: 3px solid #d4a853; }

.admin-main { flex: 1; background: #f5f6f8; }
.admin-topbar { background: #fff; height: 55px; padding: 0 20px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid #eee; }
.admin-topbar .title { font-size: 16px; font-weight: bold; }
.admin-topbar .user { font-size: 13px; color: #666; }
.admin-topbar .user a { margin-left: 15px; color: #1e6fff; }

.admin-content { padding: 20px; }
.admin-card { background: #fff; border-radius: 8px; padding: 20px; margin-bottom: 20px; }
.admin-card h3 { font-size: 16px; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 1px solid #eee; }

.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th, .admin-table td { padding: 12px; text-align: left; border-bottom: 1px solid #eee; font-size: 13px; }
.admin-table th { background: #fafafa; font-weight: normal; color: #666; }
.admin-table tr:hover { background: #fafafa; }

.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; color: #333; font-size: 14px; }
.form-group label .req { color: #ff4d4f; margin-right: 3px; }
.form-group input[type=text], .form-group input[type=number], .form-group textarea, .form-group select {
    width: 100%; max-width: 500px; padding: 8px 12px; border: 1px solid #ddd; border-radius: 4px; font-size: 14px; font-family: inherit;
}
.form-group textarea { min-height: 100px; resize: vertical; }
.form-group .tip { font-size: 12px; color: #999; margin-top: 5px; }

.stat-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 20px; }
.stat-card { background: #fff; border-radius: 8px; padding: 25px; text-align: center; }
.stat-card .num { font-size: 32px; font-weight: bold; color: #1e6fff; margin-bottom: 8px; }
.stat-card .label { font-size: 13px; color: #999; }

.city-check { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; max-width: 600px; }
.city-check label { display: flex; align-items: center; padding: 8px; background: #f5f6f8; border-radius: 4px; cursor: pointer; font-size: 13px; }
.city-check input { margin-right: 6px; }
.city-check label:hover { background: #e8f0ff; }

.quick-actions { margin-bottom: 20px; }
.quick-actions .btn { margin-right: 10px; }

/* ========== v1.2 新增样式 ========== */

/* 城市顶部导航条 */
.city-topbar { background: #1a2332; color: #999; font-size: 12px; padding: 8px 0; border-bottom: 1px solid rgba(212,168,83,0.2); }
.city-topbar a { text-decoration: none; }
.city-topbar a:hover { color: #d4a853; }

/* 文章详情 */
.breadcrumb { font-size: 13px; color: #999; margin-bottom: 20px; padding-bottom: 15px; border-bottom: 1px solid #eee; }
.breadcrumb a { color: #666; text-decoration: none; }
.breadcrumb a:hover { color: #d4a853; }

.article-detail { max-width: 900px; margin: 0 auto; }
.article-title { font-size: 28px; color: #1a2332; margin-bottom: 15px; line-height: 1.4; }
.article-meta { color: #999; font-size: 13px; margin-bottom: 30px; padding-bottom: 15px; border-bottom: 1px dashed #eee; }
.article-cover { text-align: center; margin-bottom: 30px; }
.article-cover img { max-width: 100%; border-radius: 8px; }
.article-content { font-size: 15px; line-height: 1.8; color: #333; }
.article-content p { margin-bottom: 18px; }
.article-content h3 { font-size: 18px; color: #1a2332; margin: 25px 0 12px; padding-left: 10px; border-left: 3px solid #d4a853; }
.article-content img { max-width: 100%; border-radius: 6px; margin: 15px 0; }

.article-nav { display: flex; justify-content: space-between; margin-top: 50px; padding: 20px 0; border-top: 1px solid #eee; font-size: 14px; }
.article-nav a { color: #666; text-decoration: none; }
.article-nav a:hover { color: #d4a853; }

/* 产品分类筛选 */
.product-cats { margin-bottom: 30px; text-align: center; }
.product-cats a { display: inline-block; padding: 8px 20px; margin: 0 5px; background: #f5f6f8; color: #666; text-decoration: none; border-radius: 20px; font-size: 14px; }
.product-cats a:hover, .product-cats a.active { background: #d4a853; color: #fff; }

/* 产品列表页 */
.page-product { grid-template-columns: repeat(4, 1fr); }
.product-item .params { color: #d4a853; font-size: 13px; margin: 5px 0; }
.product-item .desc { color: #999; font-size: 13px; line-height: 1.6; }

/* 新闻列表页 */
.page-news .news-item { padding: 25px 0; border-bottom: 1px solid #f0f0f0; }
.pagination-wrap { text-align: center; margin-top: 40px; }

/* 主站卡片样式 */
.main-card { background: #fff; border-radius: 8px; padding: 25px; margin-bottom: 20px; box-shadow: 0 2px 8px rgba(0,0,0,0.05); }
.card-title { font-size: 18px; color: #1a2332; margin-bottom: 20px; padding-bottom: 10px; border-bottom: 2px solid #d4a853; display: inline-block; }

.company-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; }
.company-item { padding: 15px; border: 1px solid #eee; border-radius: 6px; transition: all 0.3s; }
.company-item:hover { border-color: #d4a853; box-shadow: 0 4px 12px rgba(212,168,83,0.15); }
.company-item .name { font-size: 15px; font-weight: bold; color: #1a2332; margin-bottom: 8px; }
.company-item .name a { color: #1a2332; text-decoration: none; }
.company-item .name a:hover { color: #d4a853; }
.company-item .keyword { color: #d4a853; font-size: 13px; margin-bottom: 5px; }
.company-item .phone { color: #666; font-size: 13px; }

/* 主站头部 */
.main-header { background: #1a2332; color: #fff; padding: 15px 0; }
.top-bar { display: flex; align-items: center; justify-content: space-between; }
.logo-main { font-size: 22px; font-weight: bold; }
.search-box { display: flex; gap: 0; }
.search-box input { padding: 8px 15px; border: none; border-radius: 4px 0 0 4px; width: 300px; font-size: 14px; }
.search-box button { padding: 8px 20px; background: #d4a853; color: #fff; border: none; border-radius: 0 4px 4px 0; cursor: pointer; }
.user-links a { color: #999; text-decoration: none; font-size: 13px; margin-left: 15px; }
.user-links a:hover { color: #d4a853; }

.main-nav { background: #fff; box-shadow: 0 2px 8px rgba(0,0,0,0.05); }
.main-nav .container { display: flex; gap: 30px; padding: 15px 0; }
.main-nav a { color: #333; text-decoration: none; font-size: 15px; }
.main-nav a:hover, .main-nav a.active { color: #d4a853; }

.main-footer { background: #1a2332; color: #999; padding: 30px 0; text-align: center; margin-top: 40px; font-size: 13px; }

/* 城市选择三级树 */
.province-item { border-bottom: 1px solid #f0f0f0; }
.province-item:last-child { border-bottom: none; }

/* 主站产品展示 */
.product-grid-main {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.product-item-main {
    background: #fff;
    border: 1px solid #eee;
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s;
}
.product-item-main:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transform: translateY(-2px);
    border-color: #d4a853;
}
.product-item-main .product-img {
    height: 180px;
    overflow: hidden;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
}
.product-item-main .product-img img {
    max-width: 100%;
    max-height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}
.product-item-main:hover .product-img img {
    transform: scale(1.05);
}
.product-item-main .product-info {
    padding: 15px;
}
.product-item-main .product-name {
    font-size: 14px;
    color: #333;
    margin-bottom: 8px;
    line-height: 1.4;
    height: 40px;
    overflow: hidden;
}
.product-item-main .product-name a {
    color: #333;
    text-decoration: none;
}
.product-item-main .product-name a:hover {
    color: #d4a853;
}
.product-item-main .product-company {
    font-size: 13px;
    color: #666;
    margin-bottom: 5px;
}
.product-item-main .product-city {
    font-size: 12px;
    color: #999;
}
.province-header { display: flex; align-items: center; padding: 10px 12px; background: #f8f9fb; cursor: pointer; font-size: 14px; border-radius: 4px; margin: 4px 0; }
.province-header:hover { background: #eef3ff; }
.province-header .toggle-icon { display: inline-block; width: 16px; font-size: 10px; color: #999; margin-right: 4px; transition: transform 0.2s; }
.province-body { padding: 5px 10px 10px 30px; }

/* ========== 企业站首页v2样式 ========== */
.site-banner-v2 {
    background: linear-gradient(135deg, #1a2332 0%, #2a3a52 50%, #1a2332 100%);
    color: #fff;
    padding: 60px 0;
    position: relative;
    overflow: hidden;
}
.site-banner-v2::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 400px;
    height: 100%;
    background: linear-gradient(135deg, rgba(212,168,83,0.1) 0%, transparent 100%);
}
.site-banner-v2 .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 1;
}
.banner-content {
    flex: 1;
}
.banner-title {
    font-size: 32px;
    margin-bottom: 15px;
    font-weight: 600;
    line-height: 1.3;
}
.banner-subtitle {
    font-size: 16px;
    color: rgba(255,255,255,0.8);
    margin-bottom: 25px;
}
.banner-tags {
    display: flex;
    gap: 12px;
}
.banner-tags span {
    padding: 6px 16px;
    background: rgba(212,168,83,0.2);
    border: 1px solid rgba(212,168,83,0.3);
    border-radius: 20px;
    font-size: 13px;
    color: #d4a853;
}
.banner-contact {
    flex-shrink: 0;
}
.banner-phone {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    padding: 20px 30px;
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    gap: 15px;
}
.banner-phone .phone-icon {
    font-size: 36px;
}
.banner-phone .phone-label {
    font-size: 12px;
    color: rgba(255,255,255,0.6);
    margin-bottom: 5px;
}
.banner-phone .phone-number {
    font-size: 22px;
    font-weight: 600;
    color: #d4a853;
}

/* 区块标题 */
.section-header {
    text-align: center;
    margin-bottom: 40px;
}
.section-title {
    font-size: 28px;
    color: #1a2332;
    margin-bottom: 10px;
    font-weight: 600;
}
.section-subtitle {
    font-size: 14px;
    color: #999;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* 公司简介 */
.intro-section {
    padding: 70px 0;
}
.intro-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 50px;
    align-items: center;
}
.intro-text {
    font-size: 15px;
    line-height: 1.8;
    color: #555;
}
.intro-text p {
    margin-bottom: 15px;
}
.intro-img img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}
.img-placeholder {
    width: 100%;
    height: 300px;
    background: linear-gradient(135deg, #f5f6f8, #e8e9ec);
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #999;
    font-size: 48px;
}
.img-placeholder p {
    font-size: 14px;
    margin-top: 10px;
}
.btn-primary {
    display: inline-block;
    padding: 12px 30px;
    background: linear-gradient(135deg, #d4a853, #c49843);
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    font-size: 14px;
    transition: all 0.3s;
    margin-top: 10px;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(212,168,83,0.3);
}

/* 公司优势 */
.advantages-section {
    padding: 70px 0;
}
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}
.advantage-item {
    background: #fff;
    padding: 30px 25px;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}
.advantage-item .adv-icon {
    font-size: 40px;
    margin-bottom: 15px;
}
.advantage-item h3 {
    font-size: 18px;
    color: #1a2332;
    margin-bottom: 10px;
}
.advantage-item p {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
}
.advantages-content {
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    font-size: 15px;
    line-height: 1.8;
    color: #555;
}
.advantages-content p {
    margin-bottom: 15px;
}

/* 常见问题 */
.faq-section {
    padding: 70px 0;
}
.faq-list {
    max-width: 900px;
    margin: 0 auto;
}
.faq-item {
    background: #fff;
    margin-bottom: 15px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.faq-question {
    padding: 18px 25px;
    background: linear-gradient(135deg, #1a2332, #2a3a52);
    color: #fff;
    display: flex;
    align-items: flex-start;
    gap: 15px;
}
.faq-q {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    background: #d4a853;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 14px;
}
.faq-question .faq-text {
    flex: 1;
    font-size: 15px;
    font-weight: 500;
    padding-top: 3px;
}
.faq-answer {
    padding: 20px 25px;
    display: flex;
    align-items: flex-start;
    gap: 15px;
}
.faq-a {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    background: #f0f0f0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 14px;
    color: #d4a853;
}
.faq-answer .faq-text {
    flex: 1;
    font-size: 14px;
    line-height: 1.8;
    color: #555;
    padding-top: 3px;
}

/* 其他城市站 */
.cities-section {
    padding: 70px 0;
}
.city-links-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 15px;
}
.city-link-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 15px 20px;
    background: #fff;
    border-radius: 8px;
    text-decoration: none;
    color: #333;
    font-size: 14px;
    transition: all 0.3s;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.city-link-item:hover {
    background: linear-gradient(135deg, #1a2332, #2a3a52);
    color: #d4a853;
    transform: translateY(-2px);
}
.city-link-item .city-icon {
    font-size: 16px;
}

/* 响应式 */
@media (max-width: 768px) {
    .site-banner-v2 .container {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }
    .banner-tags {
        justify-content: center;
        flex-wrap: wrap;
    }
    .intro-grid {
        grid-template-columns: 1fr;
    }
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .city-links-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.city-item { margin: 4px 0; }
.city-header { display: flex; align-items: center; padding: 5px 8px; font-size: 13px; border-radius: 4px; }
.city-header:hover { background: #f5f8ff; }
.toggle-icon-sm { display: inline-block; width: 14px; font-size: 9px; color: #bbb; cursor: pointer; margin-right: 4px; }
.district-body { padding: 3px 0 5px 28px; display: flex; flex-wrap: wrap; gap: 4px; }
.district-body label { background: #fafafa; border-radius: 3px; }
.district-body label:hover { background: #e8f0ff; }

/* 城市分组旧样式保留 */
.city-province-group { margin-bottom: 20px; }
.city-province-title { font-weight: bold; color: #1a2332; margin-bottom: 10px; padding: 8px 12px; background: #f5f6f8; border-radius: 4px; font-size: 14px; }

/* ===== 城市选择树美化增强 ===== */
#cityTree {
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    max-height: 600px;
    overflow-y: auto;
    padding: 12px;
    background: #fafbfc;
}

/* 第一级：省份 */
.city-prov-item {
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    margin-bottom: 8px;
    background: #fff;
    overflow: hidden;
    transition: all 0.2s;
}
.city-prov-item:hover {
    border-color: #1e6fff;
    box-shadow: 0 2px 8px rgba(30,111,255,0.1);
}

.city-prov-header {
    display: flex;
    align-items: center;
    padding: 12px 15px;
    background: linear-gradient(135deg, #f8f9fb 0%, #eef3ff 100%);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: #1a2332;
    border-bottom: 1px solid #e8ecf0;
}
.city-prov-header:hover {
    background: linear-gradient(135deg, #e8f0ff 0%, #dce8ff 100%);
}
.city-toggle-icon {
    display: inline-block;
    width: 20px;
    font-size: 11px;
    color: #1e6fff;
    margin-right: 8px;
    transition: transform 0.2s;
}
.city-prov-label {
    cursor: pointer;
    flex: 1;
    display: flex;
    align-items: center;
}
.city-prov-name {
    font-weight: 600;
    color: #1a2332;
    font-size: 15px;
}
.city-count-badge {
    color: #999;
    font-weight: normal;
    font-size: 12px;
    margin-left: 10px;
    background: #f0f2f5;
    padding: 2px 8px;
    border-radius: 10px;
}

/* 第二级：城市 */
.city-prov-body {
    padding: 10px 15px 12px 15px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 6px;
}

.city-city-item {
    margin: 0;
    border: 1px solid #f0f0f0;
    border-radius: 4px;
    background: #fff;
    transition: all 0.2s;
}
.city-city-item:hover {
    border-color: #1e6fff;
}

.city-city-header {
    display: flex;
    align-items: center;
    padding: 8px 10px;
    font-size: 13px;
    border-radius: 4px;
    color: #333;
}
.city-city-header:hover {
    background: #f0f6ff;
    color: #1e6fff;
}
.city-city-header input[type="checkbox"] {
    margin-right: 6px;
    accent-color: #1e6fff;
}
.city-toggle-icon-sm {
    display: inline-block;
    width: 16px;
    font-size: 10px;
    color: #999;
    cursor: pointer;
    margin-right: 4px;
    transition: transform 0.2s;
}
.city-toggle-icon-sm:hover {
    color: #1e6fff;
}
.city-city-label {
    cursor: pointer;
    flex: 1;
    display: flex;
    align-items: center;
}
.city-dist-count {
    color: #999;
    font-size: 12px;
    margin-left: 6px;
}

/* 第三级：区县 */
.city-dist-body {
    padding: 6px 10px 10px 30px;
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    border-top: 1px dashed #eee;
    background: #fafbfc;
}
.city-dist-label {
    background: #fff;
    border: 1px solid #eee;
    border-radius: 3px;
    padding: 4px 8px;
    font-size: 12px;
    color: #666;
    cursor: pointer;
    transition: all 0.2s;
}
.city-dist-label:hover {
    background: #e8f0ff;
    border-color: #1e6fff;
    color: #1e6fff;
}
.city-dist-label input[type="checkbox"] {
    accent-color: #1e6fff;
}

/* 响应式 */
@media (max-width: 900px) {
    .city-prov-body {
        grid-template-columns: repeat(1, 1fr);
    }
}



/* ========== 主站列表页样式 ========== */

/* 资讯列表 */
.news-list { padding: 10px 0; }
.news-list-item { display: flex; padding: 20px 0; border-bottom: 1px solid #eee; }
.news-list-item:last-child { border-bottom: none; }
.news-list-date { width: 70px; text-align: center; margin-right: 20px; flex-shrink: 0; }
.news-list-date .day { font-size: 32px; font-weight: bold; color: #1e6fff; line-height: 1; }
.news-list-date .month { font-size: 12px; color: #999; margin-top: 5px; }
.news-list-content { flex: 1; }
.news-list-content h4 { margin: 0 0 10px 0; font-size: 16px; font-weight: normal; }
.news-list-content h4 a { color: #333; text-decoration: none; }
.news-list-content h4 a:hover { color: #1e6fff; }
.news-list-desc { color: #666; font-size: 13px; line-height: 1.8; margin: 0 0 10px 0; }
.news-list-meta { font-size: 12px; color: #999; }
.news-list-meta span { margin-right: 20px; }

/* 产品网格 */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; padding: 10px 0; }
.product-item { background: #fff; border: 1px solid #eee; border-radius: 8px; overflow: hidden; transition: all 0.3s; }
.product-item:hover { transform: translateY(-3px); box-shadow: 0 5px 15px rgba(0,0,0,0.1); border-color: #1e6fff; }
.product-item .product-img { height: 160px; overflow: hidden; background: #f5f5f5; }
.product-item .product-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s; }
.product-item:hover .product-img img { transform: scale(1.05); }
.product-item .product-name { padding: 12px 15px 5px 15px; font-size: 14px; font-weight: bold; }
.product-item .product-name a { color: #333; text-decoration: none; }
.product-item .product-name a:hover { color: #1e6fff; }
.product-item .product-company { padding: 0 15px 12px 15px; font-size: 12px; color: #999; }

/* 供应商列表 */
.company-list { padding: 10px 0; }
.company-list-item { display: flex; align-items: center; padding: 20px; border-bottom: 1px solid #eee; transition: background 0.2s; }
.company-list-item:hover { background: #f8f9fb; }
.company-list-item:last-child { border-bottom: none; }
.company-list-info { flex: 1; }
.company-list-info h4 { margin: 0 0 10px 0; font-size: 16px; font-weight: bold; }
.company-list-info h4 a { color: #333; text-decoration: none; }
.company-list-info h4 a:hover { color: #1e6fff; }
.company-list-desc { color: #666; font-size: 13px; line-height: 1.8; margin: 0 0 10px 0; }
.company-list-meta { font-size: 12px; color: #999; }
.company-list-meta span { margin-right: 20px; }
.company-list-btn { margin-left: 20px; flex-shrink: 0; }
.company-list-btn .btn-primary { display: inline-block; padding: 8px 20px; background: #1e6fff; color: #fff; text-decoration: none; border-radius: 4px; font-size: 14px; }
.company-list-btn .btn-primary:hover { background: #1856cc; }

/* 分页 */
.pagination { text-align: center; margin-top: 30px; padding: 20px 0; }
.pagination a, .pagination .current { display: inline-block; padding: 8px 14px; margin: 0 3px; border: 1px solid #ddd; border-radius: 4px; text-decoration: none; color: #666; font-size: 14px; }
.pagination a:hover { border-color: #1e6fff; color: #1e6fff; }
.pagination .current { background: #1e6fff; color: #fff; border-color: #1e6fff; }



/* ========== 主站手机端自适应 ========== */
@media (max-width: 768px) {
    /* 全局 */
    body { font-size: 14px; }
    
    /* 容器 */
    .container { width: 100% !important; padding: 0 12px !important; box-sizing: border-box; }
    
    /* ===== 顶部导航 ===== */
    .main-header { padding: 12px 0; }
    .top-bar { flex-direction: column; gap: 12px; align-items: stretch; }
    .logo-main { font-size: 18px; text-align: center; }
    .search-box { width: 100%; }
    .search-box input { width: 100%; height: 38px; font-size: 14px; }
    .search-box button { height: 38px; padding: 0 18px; font-size: 14px; flex-shrink: 0; }
    
    /* ===== 主导航 ===== */
    .main-nav .container { padding: 0 !important; overflow-x: auto; -webkit-overflow-scrolling: touch; display: flex; }
    .main-nav a { flex-shrink: 0; padding: 12px 18px; font-size: 14px; border-bottom: 2px solid transparent; }
    .main-nav a.active, .main-nav a:hover { border-bottom-width: 2px; }
    
    /* ===== 卡片 ===== */
    .main-card { padding: 15px; margin-bottom: 12px; border-radius: 6px; }
    .card-title { font-size: 16px; margin-bottom: 12px; padding-bottom: 8px; }
    
    /* ===== 热门城市 ===== */
    .city-links a { padding: 5px 10px; margin: 3px; font-size: 12px; }
    
    /* ===== 企业网格 ===== */
    .company-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 10px !important; }
    .company-item { padding: 12px; }
    .company-item .name { font-size: 13px; margin-bottom: 6px; }
    .company-item .city { font-size: 11px; }
    .company-item .keyword { font-size: 12px; }
    .company-item .phone { font-size: 12px; }
    
    /* ===== 新闻网格（首页） ===== */
    .news-grid { grid-template-columns: 1fr !important; gap: 8px !important; }
    .news-grid-item { padding: 8px 0; }
    .news-grid-title { font-size: 14px; }
    .news-grid-date { font-size: 11px; }
    
    /* ===== 产品网格 ===== */
    .product-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 10px !important; }
    .product-item { border-radius: 6px; }
    .product-item .product-img { height: 120px !important; }
    .product-item .product-name { font-size: 13px !important; padding: 8px 10px 4px 10px !important; }
    .product-item .product-company { padding: 0 10px 10px 10px !important; font-size: 11px !important; }
    
    /* ===== 首页产品网格 ===== */
    .product-grid-main { grid-template-columns: repeat(2, 1fr) !important; gap: 10px !important; }
    .product-item-main { border-radius: 6px; }
    .product-item-main .product-img { height: 120px !important; }
    .product-item-main .product-name { font-size: 13px !important; padding: 8px 10px 4px 10px !important; }
    .product-item-main .product-company { padding: 0 10px 5px 10px !important; font-size: 11px !important; }
    .product-item-main .product-city { padding: 0 10px 10px 10px !important; font-size: 11px !important; }
    
    /* ===== 资讯列表页 ===== */
    .news-list { padding: 5px 0; }
    .news-list-item { flex-direction: column; gap: 10px; padding: 15px 0; }
    .news-list-date { width: auto; display: flex; align-items: center; gap: 10px; margin-right: 0; }
    .news-list-date .day { font-size: 22px; }
    .news-list-date .month { font-size: 11px; margin-top: 0; }
    .news-list-content h4 { font-size: 15px; margin-bottom: 6px; }
    .news-list-desc { font-size: 13px; line-height: 1.6; margin-bottom: 8px; }
    .news-list-meta { font-size: 11px; }
    .news-list-meta span { margin-right: 12px; }
    
    /* ===== 供应商列表页 ===== */
    .company-list { padding: 5px 0; }
    .company-list-item { flex-direction: column; gap: 12px; align-items: stretch; padding: 15px; }
    .company-list-info h4 { font-size: 15px; margin-bottom: 8px; }
    .company-list-desc { font-size: 13px; line-height: 1.6; margin-bottom: 8px; }
    .company-list-meta { font-size: 12px; }
    .company-list-meta span { display: inline-block; margin-right: 15px; margin-bottom: 3px; }
    .company-list-btn { margin-left: 0; }
    .company-list-btn .btn-primary { width: 100%; text-align: center; padding: 10px; font-size: 14px; }
    
    /* ===== 分页 ===== */
    .pagination { margin-top: 20px; padding: 10px 0; }
    .pagination a, .pagination .current { padding: 6px 10px; font-size: 13px; margin: 0 2px; }
    
    /* ===== 详情页两列布局 ===== */
    .main-article-container { flex-direction: column !important; gap: 12px !important; }
    .main-article-left { width: 100% !important; flex: none !important; }
    .main-article-right { width: 100% !important; flex: none !important; }
    
    /* ===== 文章详情内容 ===== */
    .main-article-box { padding: 18px 15px !important; border-radius: 6px !important; }
    .main-article-breadcrumb { font-size: 12px; margin-bottom: 15px; padding-bottom: 10px; }
    .main-article-title { font-size: 20px !important; margin-bottom: 12px !important; line-height: 1.4 !important; }
    .main-article-meta { font-size: 12px; margin-bottom: 18px; padding-bottom: 12px; }
    .main-article-meta span { margin-right: 12px; }
    .main-article-content { font-size: 15px !important; line-height: 1.8 !important; }
    .main-article-content p { margin-bottom: 15px !important; }
    .main-article-content img { margin: 12px 0 !important; border-radius: 4px !important; }
    
    /* ===== 侧边栏卡片 ===== */
    .sidebar-card { padding: 15px !important; border-radius: 6px !important; margin-bottom: 12px !important; }
    .sidebar-title { font-size: 15px !important; margin-bottom: 12px !important; padding-bottom: 8px !important; }
}

@media (max-width: 480px) {
    /* 超小屏手机 */
    .container { padding: 0 10px !important; }
    
    /* 网格全部单列 */
    .company-grid { grid-template-columns: 1fr !important; }
    .product-grid { grid-template-columns: 1fr !important; }
    .product-item .product-img { height: 160px !important; }
    .product-grid-main { grid-template-columns: 1fr !important; }
    .product-item-main .product-img { height: 160px !important; }
    
    /* 字体再小一点 */
    .card-title { font-size: 15px; }
    .main-article-title { font-size: 18px !important; }
    .main-article-content { font-size: 14px !important; }
    
    /* 分页更紧凑 */
    .pagination a, .pagination .current { padding: 5px 8px; font-size: 12px; margin: 0 1px; }
}