/* theme245 — 药理实验室·生物科技 | #00A896 薄荷绿 | 4px | 细体无衬线 */
:root {
    --color-primary: #00A896; --color-primary-dark: #008070; --color-primary-light: #F0F8F6;
    --color-accent: #0288D1; --color-text-dark: #2C3E50; --color-text-muted: #7F8C8D; --color-text-light: #BDC3C7;
    --color-bg-warm: #FAFAFC; --color-bg-gray: #F0F2F5; --color-border: #DDE1E6; --color-border-dark: #C5CAD1;
    --radius-sm: 4px; --radius-md: 4px; --radius-lg: 4px;
    --shadow-sm: 0 1px 4px rgba(0,0,0,0.04); --shadow-md: 0 2px 12px rgba(0,0,0,0.06);
    --font-family: "Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif;
}
body { font-family: var(--font-family); color: var(--color-text-dark); background: #FAFAFC; font-weight: 300; }
a { color: var(--color-text-dark); } a:hover { color: var(--color-primary); text-decoration: none; }
.container { max-width: 1200px; }
.skip-link { position: absolute; top: -50px; left: 8px; z-index: 9999; padding: 10px 18px; background: var(--color-primary); color: #FFF !important; font-size: 14px; border-radius: 0 0 var(--radius-sm) var(--radius-sm); transition: top 0.2s; }
.skip-link:focus { top: 0; }

.site-header { background: #FFF; border-bottom: 1px solid var(--color-border); position: sticky; top: 0; z-index: 1000; }
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.site-logo img { height: 36px; }
.main-nav { background: #FFF; border-bottom: 1px solid var(--color-border); }
.main-menu > li > a { color: #555 !important; padding: 13px 18px; font-size: 14px; font-weight: 300; }
.main-menu > li > a:hover, .main-menu > li.active > a { color: var(--color-primary) !important; }
.main-menu .dropdown-menu { background: #FFF; border: 1px solid var(--color-border); border-radius: var(--radius-sm); }
.main-menu .dropdown-menu a { padding: 8px 18px; font-size: 13px; font-weight: 300; }
.main-menu .dropdown-menu a:hover { background: var(--color-primary-light); color: var(--color-primary); }
.mobile-toggle { display: none; }
.mobile-toggle .icon-bar { display: block; width: 20px; height: 1px; background: var(--color-primary); margin: 5px 0; }

.hero-section { position: relative; padding: 80px 0; text-align: center; background-size: cover; background-position: center; }
.hero-section::before { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(250,250,252,0.82) 0%, rgba(250,250,252,0.7) 100%); }
.hero-section .container { position: relative; z-index: 1; }
.hero-title { font-size: 38px; font-weight: 300; color: var(--color-text-dark); margin: 0 0 12px; letter-spacing: 2px; }
.hero-subtitle { font-size: 15px; color: var(--color-text-muted); margin: 0 0 30px; font-weight: 300; }
.hero-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.hero-actions .btn-primary { display: inline-block; padding: 10px 30px; background: var(--color-primary); color: #FFF; border-radius: var(--radius-lg); font-size: 14px; font-weight: 300; letter-spacing: 1px; }
.hero-actions .btn-primary:hover { background: var(--color-primary-dark); color: #FFF; }
.hero-actions .btn-secondary { display: inline-block; padding: 10px 30px; border: 1px solid var(--color-primary); color: var(--color-primary); border-radius: var(--radius-lg); font-size: 14px; font-weight: 300; }
.hero-actions .btn-secondary:hover { background: var(--color-primary); color: #FFF; }

.banner-section { padding: 24px 0; background: #FFF; }
.focus-banner { border-radius: var(--radius-sm); overflow: hidden; }
.focus-banner .swiper-slide img { width: 100%; height: 360px; object-fit: cover; }
.focus-banner .swiper-slide span { position: absolute; bottom: 0; left: 0; right: 0; padding: 14px 24px; background: linear-gradient(transparent, rgba(0,0,0,0.5)); color: #FFF; font-size: 15px; font-weight: 300; }
.focus-banner .swiper-pagination-bullet-active { background: var(--color-primary); }

.main-section { padding: 36px 0; } .block { margin-bottom: 36px; }
.block-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 10px; margin-bottom: 18px; border-bottom: 2px solid var(--color-primary); }
.block-head h3 { font-size: 18px; font-weight: 300; margin: 0; letter-spacing: 1px; }
.block-head .more { font-size: 13px; color: var(--color-text-muted); white-space: nowrap; }

.card-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.card { display: block; background: #FFF; border-radius: var(--radius-sm); border: 1px solid var(--color-border); overflow: hidden; transition: all 0.3s; }
.card:hover { box-shadow: var(--shadow-md); border-color: var(--color-primary); }
.card-cover { position: relative; padding-top: 75%; overflow: hidden; background: var(--color-bg-gray); }
.card-cover img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.card-body { padding: 14px; } .card-title { font-size: 14px; font-weight: 300; margin: 0 0 8px; }
.card-price { font-size: 18px; font-weight: 400; color: var(--color-primary); }

.article-list { list-style: none; padding: 0; } .article-row { border-bottom: 1px solid #F0F2F5; padding: 12px 0; }
.article-row a { display: flex; gap: 14px; } .article-row a img { width: 140px; height: 88px; object-fit: cover; border-radius: var(--radius-sm); flex-shrink: 0; }
.article-row a div { flex: 1; min-width: 0; } .article-row a h4 { font-size: 14px; font-weight: 300; margin: 0 0 5px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.article-row a span { font-size: 12px; color: var(--color-text-muted); }

.widget { background: #FFF; border: 1px solid var(--color-border); border-radius: var(--radius-sm); margin-bottom: 18px; }
.widget-head { padding: 12px 16px; border-bottom: 1px solid var(--color-border); }
.widget-title { font-size: 14px; font-weight: 300; margin: 0; letter-spacing: 1px; }
.widget-body { padding: 12px 16px; }
.nav-list, .rank-list, .latest-list { list-style: none; padding: 0; }
.nav-item a { display: block; padding: 8px 10px; font-size: 13px; font-weight: 300; border-radius: var(--radius-sm); }
.nav-item a:hover, .nav-item.active > a { background: var(--color-primary-light); color: var(--color-primary); }
.rank-item { display: flex; align-items: center; gap: 10px; padding: 9px 0; border-bottom: 1px solid #F0F2F5; }
.rank-num { flex-shrink: 0; width: 22px; height: 22px; line-height: 22px; text-align: center; font-size: 11px; color: #BDC3C7; background: var(--color-bg-gray); border-radius: var(--radius-sm); }
.rank-num.rank-top { background: var(--color-primary); color: #FFF; }
.rank-content { flex: 1; min-width: 0; } .rank-title { font-size: 13px; font-weight: 300; display: block; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.latest-item { display: flex; gap: 10px; padding: 9px 0; border-bottom: 1px solid #F0F2F5; }
.latest-thumb { flex-shrink: 0; width: 78px; height: 54px; border-radius: var(--radius-sm); overflow: hidden; }
.latest-info { flex: 1; min-width: 0; } .latest-title { font-size: 12px; font-weight: 300; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.widget-ad { padding: 0; border: none; } .widget-ad img { width: 100%; border-radius: var(--radius-sm); }

.page-banner { padding: 40px 0; background: linear-gradient(135deg, var(--color-primary-light), #E8F4FD); text-align: center; }
.page-banner-title { font-size: 24px; font-weight: 300; margin: 0 0 8px; letter-spacing: 1px; }
.breadcrumb-inline { font-size: 12px; color: var(--color-text-muted); }

.article-card { display: flex; gap: 18px; padding: 18px 0; border-bottom: 1px solid #F0F2F5; }
.article-cover { flex-shrink: 0; width: 200px; height: 128px; border-radius: var(--radius-sm); overflow: hidden; }
.article-body { flex: 1; min-width: 0; } .article-title { font-size: 16px; font-weight: 300; }
.meta-cat { display: inline-block; padding: 2px 10px; background: var(--color-primary-light); color: var(--color-primary); border-radius: var(--radius-sm); font-size: 11px; }

.article-detail { background: #FFF; border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: 28px; }
.article-detail-title { font-size: 24px; font-weight: 300; letter-spacing: 1px; }
.detail-cat { display: inline-block; padding: 3px 12px; background: var(--color-primary-light); color: var(--color-primary); border-radius: var(--radius-sm); font-size: 11px; }
.article-detail-content { font-size: 15px; line-height: 1.9; max-width: 700px; margin: 0 auto; font-weight: 300; }
.article-summary { margin: 28px 0; padding: 18px 22px; background: var(--color-primary-light); border-left: 3px solid var(--color-primary); border-radius: var(--radius-sm); }
.summary-deco { color: var(--color-primary); } .article-summary-title { font-size: 14px; font-weight: 300; }
.cite-text { flex: 1; min-width: 0; background: #FFF; padding: 4px 8px; border-radius: 3px; font-family: monospace; font-size: 11px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.detail-nav-item { flex: 1; min-width: 0; padding: 14px 18px; background: var(--color-bg-warm); border: 1px solid var(--color-border); border-radius: var(--radius-sm); }
.detail-nav-item:hover { border-color: var(--color-primary); }
.related-section h3 { font-size: 16px; font-weight: 300; letter-spacing: 1px; margin: 0 0 14px; }
.related-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

.product-detail-main, .single-main { background: #FFF; border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: 28px; }
.product-detail-title { font-size: 22px; font-weight: 300; }
.product-price-box { padding: 14px 18px; background: var(--color-primary-light); border-radius: var(--radius-sm); margin-bottom: 16px; }
.product-price-box .price { font-size: 24px; font-weight: 400; color: var(--color-primary); }
.product-actions button { padding: 9px 26px; background: var(--color-primary); color: #FFF; border: none; border-radius: var(--radius-sm); font-size: 13px; font-weight: 300; cursor: pointer; }

.form-message .inp, .form-message .mes textarea { border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: 10px 14px; box-sizing: border-box; }
.form-message .inp:focus, .form-message .mes textarea:focus { border-color: var(--color-primary); outline: none; }
.btn-contact { background: var(--color-primary); color: #FFF; border: none; border-radius: var(--radius-sm); padding: 10px 30px; cursor: pointer; }
.btn-contact-reset { border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: 10px 30px; cursor: pointer; background: #FFF; }
.site-footer { background: #FFF; color: var(--color-text-light); padding: 24px 0; margin-top: 50px; text-align: center; font-size: 12px; border-top: 1px solid var(--color-border); }

#back-to-top { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; background: var(--color-primary); color: #FFF; border-radius: 50%; box-shadow: 0 2px 8px rgba(0,168,150,0.2); }
.pagination li a, .pagination li span { border-radius: var(--radius-sm); }
.pagination .active a, .pagination .active span { background: var(--color-primary); color: #FFF; }

@media (max-width: 1199px) { .card-grid, .images-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 991px) { .card-grid { grid-template-columns: repeat(2, 1fr); } .article-card { flex-direction: column; } .article-cover { width: 100%; height: 170px; } .hero-title { font-size: 28px; } .hero-section { padding: 50px 0; } .mobile-toggle { display: block; } }
@media (max-width: 767px) { .card-grid { grid-template-columns: 1fr; } .hero-title { font-size: 22px; } .article-detail-nav { flex-direction: column; } }
/* === 地材品类合集 补充 === */
.site-logo-text{display:inline-block;font-size:20px;font-weight:700;color:var(--color-primary-dark);line-height:1.3}
.site-footer .site-logo-text{color:#fff;font-size:18px;display:block;margin-bottom:10px}
.main-menu .dropdown{position:relative}
.main-menu .dropdown-menu{display:none;position:absolute;top:100%;left:0;z-index:1000;min-width:200px}
.main-menu .dropdown:hover .dropdown-menu{display:block}
.site-footer{background:var(--color-primary-dark);color:rgba(255,255,255,.7);padding:48px 0 24px;margin-top:60px}
.footer-main{display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:space-between;gap:30px;margin-bottom:20px}
.footer-main>div{flex:1 1 180px;min-width:170px}
.footer-main .footer-brand{flex:1.5 1 240px}
.footer-main b{display:block;color:#fff;font-size:15px;font-weight:600;margin-bottom:14px}
.footer-main a{display:block;color:rgba(255,255,255,.6);padding:4px 0;font-size:13px}
.footer-main a:hover{color:#fff}
.footer-main p{font-size:13px;line-height:1.8;margin:8px 0 0;color:rgba(255,255,255,.45)}
.footer-bottom{padding-top:16px;border-top:1px solid rgba(255,255,255,.1);text-align:center}
.footer-copyright{font-size:12px;color:rgba(255,255,255,.4)}
.footer-copyright a{color:rgba(255,255,255,.4)}
#back-to-top.show{display:flex!important}
@media(max-width:767px){.footer-main{flex-direction:column;gap:20px}}
/* 列表页 flex 布局（防侧边栏遮挡） */
.article-cover{display:block}
.page-container{padding:30px 0 50px}
.row{display:flex;flex-wrap:wrap;margin:0 -15px}
.col-md-9{flex:0 0 75%;max-width:75%;padding:0 15px}
.col-md-3{flex:0 0 25%;max-width:25%;padding:0 15px}
@media(max-width:991px){.col-md-9,.col-md-3{flex:0 0 100%;max-width:100%}}
/* 列表项卡片式 */
.article-card{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:16px;margin-bottom:16px;transition:all .2s}
.article-card:hover{box-shadow:var(--shadow-sm);border-color:var(--color-primary)}
.article-card .article-body{padding:0}
.article-card .article-title{font-size:17px;font-weight:600;margin:0 0 8px;color:var(--color-text-dark)}
.article-card .article-title a{color:var(--color-text-dark)}
.article-card .article-title a:hover{color:var(--color-primary)}
/* 返回顶部定位 */
#floatbtn{position:fixed;right:24px;bottom:40px;z-index:999}
#back-to-top{position:fixed;right:24px;bottom:40px;z-index:999}
/* 详情单栏 */
.article-single{max-width:1170px;margin:0 auto;padding:40px 20px 60px}
.article-single .article-main{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:32px}
.pagination-box{text-align:center;margin-top:30px}
.article-single img{width:100%;max-height:400px;object-fit:cover;border-radius:var(--radius-sm);margin-bottom:20px}
.article-single .article-meta-single{display:flex;gap:14px;font-size:13px;color:var(--color-text-light);margin-bottom:24px;flex-wrap:wrap}
.article-single h2{font-size:22px;margin:28px 0 12px}
.article-single p{color:var(--color-text-soft);margin-bottom:16px}
.article-single .prev-next{display:flex;justify-content:space-between;gap:16px;margin-top:32px;padding-top:18px;border-top:1px solid var(--color-border)}