/* ============================================================
   HUAWOOD 企业官网 全站样式
   工业风 · 深灰 + 蓝
   ============================================================ */
:root{
  --blue:#1f5fa8;
  --blue-dark:#173f74;
  --blue-light:#eaf1fa;
  --grey-900:#1b2430;
  --grey-800:#232f3d;
  --grey-700:#2e3c4d;
  --grey-600:#4a5a6b;
  --text:#3a4654;
  --muted:#7b8794;
  --light:#f4f6f8;
  --border:#e3e8ee;
  --radius:6px;
}
html{scroll-behavior:smooth}
body{font-family:"Microsoft YaHei","PingFang SC","Segoe UI",Helvetica,Arial,sans-serif;color:var(--text);font-size:15px;line-height:1.75;background:#fff}
/* 防止任何元素撑出视口导致手机上右侧显示不全 */
html,body{overflow-x:hidden;width:100%}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--blue-dark)}
h1,h2,h3,h4,h5{color:var(--grey-900);font-weight:700}
img{max-width:100%}
.container{max-width:1200px}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--grey-900);color:#cbd5e1;font-size:13px;padding:7px 0}
.topbar a{color:#fff}
.topbar i{color:var(--blue);margin-right:5px}

/* ---------- 主导航 ---------- */
.main-nav{background:#fff;box-shadow:0 2px 12px rgba(27,36,48,.06);position:sticky;top:0;z-index:1030}
.main-nav .navbar-brand img{height:42px;width:auto}
.main-nav .nav-link{color:var(--grey-700);font-weight:500;padding:.6rem 1rem}
.main-nav .nav-link:hover{color:var(--blue)}
.main-nav .nav-link.active{color:var(--blue);border-bottom:2px solid var(--blue)}
.btn-nav-cta{background:var(--blue);border:0;color:#fff!important;padding:.5rem 1.1rem;border-radius:var(--radius)}
.btn-nav-cta:hover{background:var(--blue-dark)}
@media(max-width:991px){
  .main-nav .nav-link.active{border-bottom:0;background:var(--blue-light);border-radius:4px}
  .btn-nav-cta{margin:6px 0}
}

/* ---------- 通用按钮 ---------- */
.btn-primary{background:var(--blue);border-color:var(--blue)}
.btn-primary:hover{background:var(--blue-dark);border-color:var(--blue-dark)}
.btn-outline-blue{border-color:var(--blue);color:var(--blue)}
.btn-outline-blue:hover{background:var(--blue);color:#fff}

/* ---------- 首页轮播 ---------- */
.hero-slider .carousel-item{height:min(560px,72vh);position:relative}
.hero-slider .carousel-item img{width:100%;height:100%;object-fit:cover}
.hero-slider .carousel-caption{left:0;right:0;bottom:0;text-align:left;padding:40px 0;background:linear-gradient(90deg,rgba(20,28,38,.72) 0%,rgba(20,28,38,.35) 55%,transparent 100%);top:0}
.hero-slider .hero-inner{max-width:640px;color:#fff}
.hero-slider .hero-inner h1{color:#fff;font-size:clamp(1.6rem,3.4vw,2.8rem);margin-bottom:.6rem}
.hero-slider .hero-inner p{color:#dbe4ee;font-size:clamp(.95rem,1.6vw,1.15rem)}
.hero-slider .carousel-indicators [data-bs-target]{background:#fff;opacity:.6}
.hero-slider .carousel-indicators .active{background:var(--blue);opacity:1}

/* ---------- 区块标题 ---------- */
.section{padding:64px 0}
.section-alt{background:var(--light)}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:1.7rem;position:relative;padding-bottom:14px;display:inline-block}
.section-title h2::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:0;width:52px;height:3px;background:var(--blue)}
.section-title p{color:var(--muted);max-width:720px;margin:10px auto 0}

.section-kicker{color:var(--blue);font-weight:700;letter-spacing:1px;text-transform:uppercase;font-size:.85rem}
.about-img{border-radius:var(--radius);object-fit:cover}

/* ---------- 首页企业简介 ---------- */
.about-intro{padding:64px 0}
.about-intro img{border-radius:var(--radius);width:100%;object-fit:cover}
.about-stats{display:flex;flex-wrap:wrap;gap:16px;margin-top:20px}
.about-stat{flex:1;min-width:130px;background:var(--blue-light);border:1px solid var(--border);border-radius:var(--radius);padding:18px 12px;text-align:center}
.about-stat b{display:block;font-size:1.5rem;color:var(--blue)}
.about-stat span{color:var(--muted);font-size:.9rem}

/* ---------- 产品卡片 ---------- */
.product-grid .product-card{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:#fff;transition:.25s;height:100%}
.product-grid .product-card:hover{box-shadow:0 10px 24px rgba(27,36,48,.10);transform:translateY(-4px)}
.product-card .card-img{overflow:hidden;aspect-ratio:4/3;background:#eef1f4}
.product-card .card-img img{width:100%;height:100%;object-fit:cover;transition:.4s}
.product-card:hover .card-img img{transform:scale(1.06)}
.product-card .card-body{padding:16px}
.product-card .card-body h3{font-size:1.05rem;margin-bottom:6px}
.product-card .card-body h3 a{color:var(--grey-900)}
.product-card .card-body h3 a:hover{color:var(--blue)}
.product-card .card-body p{color:var(--muted);font-size:.88rem;margin-bottom:8px}
.product-card .fire-badge{display:inline-block;background:var(--blue-light);color:var(--blue);font-size:.75rem;padding:2px 8px;border-radius:4px;margin-bottom:8px}

/* ---------- 案例卡片 ---------- */
.case-card{border-radius:var(--radius);overflow:hidden;position:relative;aspect-ratio:16/10;background:#eef1f4}
.case-card img{width:100%;height:100%;object-fit:cover;transition:.4s}
.case-card .case-mask{position:absolute;left:0;right:0;bottom:0;padding:22px 16px;background:linear-gradient(transparent,rgba(20,28,38,.8));color:#fff}
.case-card .case-mask h4{color:#fff;font-size:1rem;margin-bottom:2px}
.case-card .case-mask span{font-size:.8rem;color:#dbe4ee}
.case-card:hover img{transform:scale(1.06)}

/* ---------- 新闻 ---------- */
.news-card{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:#fff;height:100%}
.news-card .news-img{aspect-ratio:16/9;overflow:hidden;background:#eef1f4}
.news-card .news-img img{width:100%;height:100%;object-fit:cover}
.news-card .news-body{padding:16px}
.news-card .news-body time{color:var(--muted);font-size:.8rem}
.news-card .news-body h3{font-size:1rem;margin:6px 0}

/* ---------- 资质证书 ---------- */
.cert-item{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:#fff;text-align:center}
.cert-item img{width:100%;aspect-ratio:1/1;object-fit:cover;background:#f4f6f8}
.cert-item .cert-body{padding:12px}
.cert-item .cert-body a{color:var(--blue);font-size:.85rem}

/* ---------- 询盘表单 ---------- */
.inquiry-panel{background:var(--blue-light);border:1px solid var(--border);border-radius:var(--radius);padding:28px}
.captcha-box{background:var(--grey-900);color:#fff;padding:8px 14px;border-radius:4px;font-weight:700;letter-spacing:1px;user-select:none}
.hp-field{position:absolute;left:-9999px;opacity:0}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--grey-900);color:#cbd5e1;margin-top:0}
.site-footer h5{color:#fff;font-size:1rem;margin-bottom:14px}
.footer-about{color:#9fb0c1;font-size:.9rem}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:7px}
.footer-links a{color:#cbd5e1;font-size:.9rem}
.footer-links a:hover{color:#fff}
.contact-list li{font-size:.9rem}
.footer-bottom{background:var(--grey-950,#141c24);border-top:1px solid #2e3c4d;font-size:.82rem;padding:14px 0;margin-top:34px}
.footer-bottom a{color:#9fb0c1}
.footer-bottom a:hover{color:#fff}

/* ---------- 浮窗按钮 ---------- */
.float-buttons{position:fixed;right:18px;bottom:90px;z-index:1050;display:flex;flex-direction:column;gap:12px}
.float-buttons a{width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.5rem;box-shadow:0 6px 16px rgba(0,0,0,.22)}
.float-whatsapp{background:#25d366}
.float-inquiry{background:var(--blue)}
.float-buttons a:hover{transform:scale(1.08);color:#fff}

/* ---------- 页面横幅 ---------- */
.page-banner{background:linear-gradient(135deg,var(--grey-800),var(--grey-900));color:#fff;padding:56px 0 44px;text-align:center}
.page-banner h1{color:#fff;font-size:1.8rem}
.page-banner .breadcrumb{--bs-breadcrumb-divider-color:#9fb0c1;color:#9fb0c1}
.page-banner .breadcrumb a{color:#cbd5e1}
.page-banner .breadcrumb .active{color:#fff}

/* ---------- 产品详情 ---------- */
.product-detail-img img{border-radius:var(--radius);background:#eef1f4}
.thumb-list{display:flex;gap:10px;margin-top:12px}
.thumb-list img{width:80px;height:80px;object-fit:cover;border:2px solid var(--border);border-radius:4px;cursor:pointer}
.thumb-list img.active{border-color:var(--blue)}
.spec-table td{border:1px solid var(--border);padding:10px 14px;word-break:break-word}
.spec-table td:first-child{background:var(--light);font-weight:600;width:34%;color:var(--grey-700);white-space:nowrap}
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.gallery-grid img{width:100%;border-radius:4px;cursor:zoom-in}

/* ---------- 分类筛选 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.filter-bar .btn-check:checked+.btn-outline-blue,.filter-bar .btn.active{background:var(--blue);color:#fff;border-color:var(--blue)}

/* ---------- 分页 ---------- */
.pagination .page-link{color:var(--blue)}
.pagination .page-item.active .page-link{background:var(--blue);border-color:var(--blue)}

/* ---------- 面包屑 / 页面容器 ---------- */
.page-body{padding:48px 0 56px}
.breadcrumb{background:transparent;margin:0;padding:0}

/* ---------- 后台相关（前台少量复用） ---------- */
.table td,.table th{vertical-align:middle}

/* ---------- 响应式 ---------- */
@media(max-width:768px){
  .section{padding:44px 0}
  .hero-slider .carousel-item{height:62vh}
  .hero-slider .carousel-caption{padding:20px 0}
  .hero-slider .hero-inner p{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .gallery-grid{grid-template-columns:repeat(2,1fr)}
  .page-banner{padding:40px 0 32px}
  .about-stats .about-stat{min-width:46%}
}
@media(max-width:576px){
  .product-card .card-body h3{font-size:.95rem}
  .float-buttons{right:12px;bottom:80px}
  .float-buttons a{width:46px;height:46px;font-size:1.25rem}
}