/* 家具出口官网 前台样式  主色 #0ea5e9 + #0c4a6e 点缀 #c8a96e */
:root{--primary:#0ea5e9;--primary-dark:#0c4a6e;--gold:#c8a96e;--bg:#fff;--bg-light:#f8fafc;--text:#1e293b;--muted:#64748b;--line:#e2e8f0;--shadow:0 18px 50px rgba(12,74,110,.12)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.75;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{width:min(1200px,92%)}
/* 顶部条 + 导航 */
.topbar{background:#082f49;color:#dbeafe;font-size:13px;padding:8px 0}
.navbar-main{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.95);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);transition:.25s}
.navbar-main.scrolled{box-shadow:0 10px 32px rgba(2,132,199,.12)}
.nav-inner{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:flex;align-items:center;gap:12px;font-weight:900;color:var(--primary-dark);font-size:19px}
.logo-img{height:42px;width:auto}
.logo-mark{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));display:grid;place-items:center;color:#fff;font-size:17px}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{padding:9px 14px;border-radius:99px;color:#475569;font-weight:700;font-size:15px;transition:.2s}
.nav-links a:hover{color:var(--primary-dark);background:#f0f9ff}
.nav-links a.active{color:var(--primary);background:#e0f2fe}
.btn-main{background:linear-gradient(135deg,var(--primary),#38bdf8);color:#fff!important;border-radius:99px;padding:10px 20px!important;font-weight:800}
.mobile-toggle{display:none;border:0;background:transparent;font-size:28px;color:var(--primary-dark)}
/* 按钮 */
.btn-primary-custom,.btn-outline-custom,.btn-dark-custom{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:99px;font-weight:800;font-size:20px;transition:.25s;cursor:pointer}
.btn-primary-custom{background:linear-gradient(135deg,var(--primary),#38bdf8);color:#fff;box-shadow:0 12px 30px rgba(14,165,233,.32)}
.btn-primary-custom:hover{transform:translateY(-2px);color:#fff;box-shadow:0 18px 38px rgba(14,165,233,.4)}
.btn-outline-custom{border:1px solid rgba(255,255,255,.55);color:#fff;background:rgba(255,255,255,.1)}
.btn-outline-custom:hover{background:rgba(255,255,255,.2);color:#fff}
.btn-dark-custom{background:var(--primary-dark);color:#fff}
.btn-dark-custom:hover{background:#075985;color:#fff}
/* Hero */
.hero{position:relative;color:#fff;background:linear-gradient(112deg,#082f49,#0c4a6e 55%,#0e5a7e)}
.hero-slide{min-height:700px;display:flex;align-items:center;background-size:cover;background-position:center}
.hero-content{padding:80px 0}
.eyebrow{display:inline-flex;align-items:center;gap:10px;padding:8px 16px;border:1px solid rgba(255,255,255,.28);border-radius:99px;background:rgba(255,255,255,.1);font-size:16px;font-weight:800;letter-spacing:.14em}
.eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold)}
.eyebrow.dark{color:var(--primary-dark);border-color:#bae6fd;background:#e0f2fe}
.hero h1{font-size:clamp(40px,6vw,72px);line-height:1.08;font-weight:900;letter-spacing:-.03em;margin:26px 0 20px;max-width:2000px}
.hero p{font-size:18px;color:#e0f2fe;max-width:640px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:36px}
.hero .carousel-indicators button{width:34px;height:4px;border-radius:99px;background:rgba(255,255,255,.35);border:0}
.hero .carousel-indicators button.active{background:var(--gold)}
/* 通用区块 */
.section-block{padding:100px 0}
.bg-light-custom{background:var(--bg-light)}
.section-title{font-size:clamp(30px,4vw,46px);line-height:1.15;font-weight:850;letter-spacing:-.03em;color:var(--primary-dark);margin:0 0 14px}
.section-sub{max-width:720px;color:var(--muted);font-size:17px;margin:0}
.gold-line{width:56px;height:4px;border-radius:99px;background:var(--gold);margin:22px 0 40px}
.tag{display:inline-block;padding:5px 12px;border-radius:99px;background:#e0f2fe;color:#0369a1;font-size:12px;font-weight:800}
.text-muted-custom{color:var(--muted)}
/* 分类卡片 */
.cat-card{display:block;text-align:center;padding:30px 14px;border:1px solid var(--line);border-radius:18px;background:#fff;transition:.3s;height:100%}
.cat-card:hover{transform:translateY(-6px);border-color:#7dd3fc;box-shadow:var(--shadow)}
.cat-icon{width:56px;height:56px;margin:0 auto 14px;border-radius:16px;display:grid;place-items:center;background:#e0f2fe;color:var(--primary);font-size:24px}
.cat-card strong{display:block;color:var(--primary-dark)}
.count{display:block;margin-top:6px;color:var(--muted);font-size:12px}
/* 优势卡片 */
.adv-card{padding:30px;border-radius:20px;background:#fff;border:1px solid #e0f2fe;height:100%}
.bg-light-custom .adv-card{background:#fff}
.adv-card .num{font-size:12px;color:var(--gold);font-weight:900;letter-spacing:.16em}
.adv-card h3{margin:12px 0 8px;color:var(--primary-dark);font-size:19px;font-weight:800}
/* 产品/案例/新闻卡片 */
.product-card,.case-card,.news-card{display:block;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff;transition:.3s;height:100%}
.product-card:hover,.case-card:hover,.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#7dd3fc}
.product-card img,.case-card img,.news-card img{width:100%;aspect-ratio:4/3;object-fit:cover}
.card-body-custom{padding:22px}
.card-body-custom h3{color:var(--primary-dark);margin:12px 0 8px;font-size:18px;font-weight:800}
.card-body-custom p{color:var(--muted);font-size:14px;margin:0}
/* 数据带 */
.band{background:linear-gradient(90deg,var(--primary-dark),#075985);color:#fff;padding:64px 0}
.band strong{display:block;font-size:42px;font-weight:900;letter-spacing:-.03em}
.band span{color:#bae6fd;font-size:14px}
/* 关于区块 */
.about-intro{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-image-wrap img{border-radius:26px;box-shadow:var(--shadow)}
/* 页脚 */
.site-footer{background:#082f49;color:#cbd5e1;padding:76px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.site-footer h4{color:#fff;margin-bottom:16px;font-size:16px}
.site-footer a{display:block;color:#cbd5e1;margin:8px 0;font-size:14px}
.site-footer a:hover{color:#7dd3fc}
.site-footer p{color:#94a3b8;font-size:14px}
.friend-links{margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);display:flex;gap:16px;flex-wrap:wrap;align-items:center;font-size:13px}
.friend-links a{display:inline;margin:0}
.copyright{text-align:center;margin-top:30px;color:#94a3b8;font-size:13px}
/* 内页头 */
.page-hero{padding:90px 0 70px;background:linear-gradient(120deg,#f0f9ff,#fff 60%,#fef3c7);border-bottom:1px solid var(--line)}
.breadcrumb{display:flex;gap:8px;align-items:center;color:var(--muted);font-size:14px;margin-bottom:18px}
.breadcrumb a{color:var(--primary-dark)}
/* 产品页布局 */
.product-layout{display:grid;grid-template-columns:280px 1fr;gap:38px}
.product-sidebar{position:sticky;top:110px;align-self:start}
/* 左侧树形导航（仿示例：一级中文序号 + 二级展开） */
.side-nav{border:1px solid #d7e5ef;border-radius:14px;overflow:hidden;background:#fff;box-shadow:0 8px 24px rgba(12,74,110,.06)}
.side-nav-title{padding:16px 20px;background:linear-gradient(135deg,#5b9bd5,#0c4a6e);color:#fff;font-weight:900;font-size:17px;letter-spacing:.05em;text-align:center}
.side-nav-list{list-style:none;margin:0;padding:0}
.side-nav-item{border-top:1px solid #e3edf4}
.side-nav-item:first-child{border-top:0}
.side-nav-parent{display:flex;align-items:center;justify-content:space-between;padding:0 16px;transition:.2s}
.side-nav-parent a{flex:1;display:block;padding:14px 0;color:#c0392b;font-weight:800;font-size:15px;text-decoration:none}
.side-nav-parent a .nav-num{color:#c0392b}
.side-nav-parent:hover,.side-nav-parent.active{background:#eaf4fb}
.side-nav-parent.active a{color:var(--primary-dark)}
.side-nav-toggle{flex:0 0 30px;width:30px;height:30px;border:1px solid #d7e5ef;border-radius:8px;background:#f4f9fc;color:var(--primary-dark);font-size:18px;line-height:1;cursor:pointer}
.side-nav-children{display:none;list-style:none;margin:0;padding:6px 10px 12px 26px;background:#f7fbfe}
.side-nav-item.open .side-nav-children{display:block}
.side-nav-children li{margin:5px 0}
.side-nav-children a{display:block;padding:8px 14px;border:1px solid #e8dcc0;border-radius:6px;background:#fdf6d8;color:#5b4a12;font-size:14px;transition:.2s}
.side-nav-children a:hover{background:#f5e6b8;border-color:#d9c48a;color:#3f3310}
.side-nav-children a.active{background:var(--primary);border-color:var(--primary);color:#fff}
.tree{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff}
.tree-title{padding:18px 20px;background:var(--primary-dark);color:#fff;font-weight:900}
.tree-link{display:flex;justify-content:space-between;align-items:center;padding:15px 18px;color:var(--primary-dark);font-weight:800;border-top:1px solid var(--line)}
.tree-link:hover,.tree-link.active{background:#f0f9ff;color:var(--primary)}
.tree-count{font-size:12px;color:var(--muted)}
.quick-box{margin-top:18px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;border-radius:18px;padding:24px}
.quick-box h3{margin:0 0 8px}
.quick-box p{color:#e0f2fe;font-size:14px}
/* 分页 */
.pagination-custom{display:flex;gap:8px;justify-content:center;margin-top:44px}
.pagination-custom a{min-width:42px;height:42px;padding:0 14px;display:grid;place-items:center;border:1px solid var(--line);border-radius:99px;color:var(--primary-dark);font-weight:800;font-size:14px}
.pagination-custom a.active,.pagination-custom a:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
/* 详情页 */
.detail-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:start}
.detail-cover{width:100%;border-radius:24px;box-shadow:var(--shadow)}
.product-carousel{border-radius:24px;overflow:hidden;box-shadow:var(--shadow)}
.product-carousel img{width:100%;aspect-ratio:4/3;object-fit:cover}
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:12px}
.gallery-grid img{border-radius:14px;aspect-ratio:1/1;object-fit:cover}
.detail-name{font-size:clamp(26px,3vw,38px);font-weight:850;color:var(--primary-dark);margin:14px 0 10px}
.spec-table{width:100%;border-collapse:collapse;margin-top:20px;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.spec-table th,.spec-table td{border-bottom:1px solid var(--line);padding:13px 15px;text-align:left;font-size:14px}
.spec-table th{background:#f0f9ff;color:var(--primary-dark);width:32%;font-weight:800}
.rich-content{font-size:16px;color:#334155}
.rich-content img{border-radius:16px;margin:14px 0}
.article-container{max-width:860px;margin:0 auto}
.article-cover{border-radius:24px;margin-bottom:34px;box-shadow:var(--shadow)}
/* 联系页 */
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start}
.contact-form{background:#fff;border:1px solid var(--line);border-radius:22px;padding:32px;box-shadow:0 10px 34px rgba(15,23,42,.07)}
.contact-form label{font-weight:800;color:var(--primary-dark);font-size:13px;margin-bottom:6px;display:block}
.contact-form input,.contact-form textarea{width:100%;border:1px solid var(--line);border-radius:12px;padding:12px 14px;font:inherit;background:#fbfdfe}
.contact-form input:focus,.contact-form textarea:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 4px rgba(14,165,233,.12)}
.contact-form textarea{min-height:150px;resize:vertical}
/* 404 */
.not-found{min-height:66vh;display:grid;place-items:center;text-align:center;padding:60px 0}
.not-found strong{font-size:clamp(80px,12vw,140px);color:var(--primary);line-height:1}
/* 响应式 */
@media (max-width:1024px){
  .product-layout{grid-template-columns:1fr}
  .product-sidebar{position:static}
  .about-intro,.contact-grid,.detail-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .section-block{padding:70px 0}
  .topbar{display:none}
  .nav-inner{height:66px}
  .mobile-toggle{display:block}
  .nav-links{position:absolute;top:66px;left:12px;right:12px;display:none;flex-direction:column;align-items:stretch;background:#fff;padding:14px;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}
  .nav-links.open{display:flex}
  .hero-slide{min-height:560px}
  .gallery-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr}
  .hero-actions .btn-primary-custom,.hero-actions .btn-outline-custom{width:100%}
}