/* =========================================================
   苏州工业园区谷蔺商贸有限公司 - 官网样式表
   ========================================================= */
:root{
  --primary:#0f4c81;
  --primary-dark:#0a3558;
  --primary-light:#e9f2fa;
  --accent:#e8862d;
  --accent-dark:#c96f1a;
  --text:#2b3440;
  --text-light:#6b7684;
  --bg:#ffffff;
  --bg-gray:#f4f6f9;
  --border:#e3e8ef;
  --radius:10px;
  --shadow:0 6px 24px rgba(15,76,129,.10);
  --shadow-lg:0 12px 40px rgba(15,76,129,.16);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
  color:var(--text);
  background:var(--bg);
  font-size:15px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

/* ---------- 顶部联系栏 ---------- */
.topbar{background:var(--primary-dark);color:#cfe0f0;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:36px}
.topbar a{color:#cfe0f0}
.topbar a:hover{color:#fff}
.topbar .tb-left span{margin-right:22px}
.topbar .tb-left i{font-style:normal;color:var(--accent);margin-right:4px}
.topbar .tb-right a{margin-left:18px}

/* ---------- 主头部 ---------- */
.header{background:#fff;position:sticky;top:0;z-index:999;box-shadow:0 2px 12px rgba(15,76,129,.08)}
.header .container{display:flex;align-items:center;justify-content:space-between;height:82px}
.logo{display:flex;align-items:center;gap:12px}
.logo-mark{
  width:46px;height:46px;border-radius:9px;flex:none;
  background:linear-gradient(135deg,var(--primary),#1c6cab);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:22px;font-family:Georgia,serif;
}
.logo-img{width:50px;height:50px;object-fit:contain;flex:none}
.logo-text .cn{font-size:20px;font-weight:700;color:var(--primary-dark);letter-spacing:1px}
.logo-text .en{font-size:11px;color:var(--text-light);letter-spacing:1.5px;text-transform:uppercase}
.nav{display:flex;align-items:center;gap:4px}
.nav a{
  padding:8px 16px;font-size:15px;font-weight:600;color:var(--text);
  border-radius:6px;transition:.25s;position:relative;
}
.nav a:hover,.nav a.active{color:var(--primary)}
.nav a.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:2px;height:3px;
  background:var(--accent);border-radius:3px;
}
.nav-cta{
  background:var(--accent);color:#fff !important;padding:10px 20px !important;border-radius:6px;
  box-shadow:0 4px 12px rgba(232,134,45,.35);
}
.nav-cta:hover{background:var(--accent-dark);color:#fff !important}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:6px}
.nav-toggle span{width:26px;height:3px;background:var(--primary-dark);border-radius:3px;transition:.3s}

/* ---------- 轮播 ---------- */
.hero{position:relative;overflow:hidden;background:var(--primary-dark)}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity 1s;background-size:cover;background-position:center}
.hero-slide.active{opacity:1;position:relative}
.hero-inner{
  position:relative;max-width:1200px;margin:0 auto;padding:90px 20px;
  min-height:520px;display:flex;align-items:center;color:#fff;z-index:2;
}
.hero-copy{max-width:560px}
.hero-copy .tag{
  display:inline-block;background:rgba(232,134,45,.92);color:#fff;font-size:13px;
  padding:4px 14px;border-radius:20px;margin-bottom:18px;font-weight:600;letter-spacing:1px;
}
.hero-copy h1{font-size:42px;line-height:1.3;font-weight:800;margin-bottom:14px;text-shadow:0 2px 12px rgba(0,0,0,.25)}
.hero-copy p{font-size:16px;color:rgba(255,255,255,.92);margin-bottom:28px;text-shadow:0 1px 6px rgba(0,0,0,.3)}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.btn{
  display:inline-block;padding:12px 28px;border-radius:6px;font-size:15px;font-weight:600;
  transition:.25s;cursor:pointer;border:none;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(232,134,45,.4)}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.6)}
.btn-ghost:hover{background:#fff;color:var(--primary)}
.hero-dots{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);display:flex;gap:9px;z-index:5}
.hero-dots button{
  width:30px;height:5px;border:none;border-radius:3px;background:rgba(255,255,255,.5);cursor:pointer;transition:.3s;
}
.hero-dots button.active{background:var(--accent);width:44px}

/* ---------- 区块通用 ---------- */
.section{padding:72px 0}
.section.gray{background:var(--bg-gray)}
.section-head{text-align:center;max-width:720px;margin:0 auto 46px}
.section-head .en{
  font-size:13px;letter-spacing:4px;color:var(--accent);text-transform:uppercase;font-weight:700;
}
.section-head h2{font-size:30px;color:var(--primary-dark);font-weight:800;margin:8px 0 12px}
.section-head p{color:var(--text-light);font-size:15px}

/* ---------- 优势 ---------- */
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:30px 24px;text-align:center;transition:.3s;
}
.feature:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.feature .icon{
  width:64px;height:64px;margin:0 auto 16px;border-radius:16px;
  background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:30px;font-weight:800;
}
.feature h3{font-size:17px;margin-bottom:8px;color:var(--primary-dark)}
.feature p{font-size:13.5px;color:var(--text-light)}

/* ---------- 关于摘要 ---------- */
.about-wrap{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.about-img{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg)}
.about-img img{width:100%;height:100%;object-fit:cover}
.about-text h3{font-size:24px;color:var(--primary-dark);margin-bottom:16px}
.about-text p{margin-bottom:14px;color:var(--text-light)}
.about-text .highlights{margin:18px 0;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.about-text .highlights li{
  background:var(--bg-gray);border-radius:8px;padding:10px 14px;font-size:13.5px;
  display:flex;align-items:center;gap:8px;color:var(--text);
}
.about-text .highlights li::before{content:"\2713";color:var(--accent);font-weight:800}

/* ---------- 产品 ---------- */
.products{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.product-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;
  transition:.3s;display:block;
}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.product-card .thumb{height:230px;overflow:hidden;position:relative}
.product-card .thumb img{width:100%;height:100%;object-fit:cover;transition:.5s}
.product-card:hover .thumb img{transform:scale(1.06)}
.product-card .info{padding:20px}
.product-card .info h3{font-size:17px;color:var(--primary-dark);margin-bottom:8px}
.product-card .info p{font-size:13.5px;color:var(--text-light)}
.product-card .more{display:inline-block;margin-top:12px;color:var(--accent);font-size:13.5px;font-weight:600}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.step{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 18px;text-align:center;position:relative;transition:.3s;
}
.step:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.step .num{
  width:46px;height:46px;margin:0 auto 14px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),#1c6cab);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:800;
}
.step h4{font-size:15px;color:var(--primary-dark);margin-bottom:6px}
.step p{font-size:12.5px;color:var(--text-light)}

/* ---------- 案例 ---------- */
.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{position:relative;border-radius:var(--radius);overflow:hidden;height:260px;display:block;box-shadow:var(--shadow)}
.case-card img{width:100%;height:100%;object-fit:cover;transition:.5s}
.case-card:hover img{transform:scale(1.07)}
.case-card .mask{
  position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,53,88,0) 30%,rgba(10,53,88,.82) 100%);
  display:flex;align-items:flex-end;padding:22px;color:#fff;
}
.case-card .mask h4{font-size:18px;margin-bottom:4px}
.case-card .mask p{font-size:13px;opacity:.85}

/* ---------- 新闻 ---------- */
.news-list{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.news-item{
  display:flex;gap:16px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:18px;transition:.3s;align-items:flex-start;
}
.news-item:hover{box-shadow:var(--shadow);border-color:transparent}
.news-item .date{
  flex:none;width:64px;text-align:center;background:var(--primary-light);
  border-radius:8px;padding:10px 4px;color:var(--primary);
}
.news-item .date b{display:block;font-size:22px;line-height:1.1}
.news-item .date span{font-size:12px}
.news-item h4{font-size:15.5px;margin-bottom:6px;color:var(--text)}
.news-item h4:hover{color:var(--primary)}
.news-item p{font-size:13px;color:var(--text-light);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- CTA ---------- */
.cta{
  background:linear-gradient(120deg,var(--primary-dark),var(--primary) 60%,#1c6cab);
  color:#fff;text-align:center;padding:56px 20px;border-radius:var(--radius);
  position:relative;overflow:hidden;
}
.cta h3{font-size:28px;font-weight:800;margin-bottom:12px}
.cta p{color:rgba(255,255,255,.85);margin-bottom:24px;font-size:15px}
.cta .phone{font-size:24px;font-weight:800;color:var(--accent);letter-spacing:1px}

/* ---------- 页脚 ---------- */
.footer{background:#0b2942;color:#a9c1d8;font-size:13.5px}
.footer-top{padding:52px 0 36px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.footer h4{color:#fff;font-size:16px;margin-bottom:18px;position:relative;padding-bottom:10px}
.footer h4::after{content:"";position:absolute;left:0;bottom:0;width:34px;height:3px;background:var(--accent);border-radius:3px}
.footer .f-brand p{margin-top:14px;line-height:1.9;color:#8fa8be}
.footer li{margin-bottom:10px}
.footer li a:hover{color:#fff}
.footer .f-contact li{display:flex;gap:8px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:16px 0;text-align:center;font-size:12.5px;color:#7d96ad}
.footer-bottom a{color:#a9c1d8}

/* ---------- 内页横幅 ---------- */
.page-banner{
  background:linear-gradient(120deg,var(--primary-dark),var(--primary) 55%,#1c6cab);
  color:#fff;padding:58px 0;text-align:center;
}
.page-banner h1{font-size:32px;font-weight:800;margin-bottom:8px}
.page-banner p{color:rgba(255,255,255,.8);font-size:15px}
.crumb{font-size:13px;color:rgba(255,255,255,.65);margin-top:12px}
.crumb a{color:#fff}

/* ---------- 关于页 ---------- */
.about-main{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.about-main .about-img{min-height:340px}
.profile-table{width:100%;border-collapse:collapse;margin-top:8px}
.profile-table td{border:1px solid var(--border);padding:12px 16px;font-size:14px}
.profile-table td:first-child{background:var(--bg-gray);font-weight:600;width:130px;color:var(--primary-dark)}
.brand-cloud{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}
.brand-cloud span{
  background:var(--primary-light);color:var(--primary);border-radius:20px;
  padding:7px 18px;font-size:14px;font-weight:600;
}

/* ---------- 产品页 ---------- */
.cat-tabs{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:38px}
.cat-tabs a{
  padding:8px 20px;border-radius:20px;border:1px solid var(--border);font-size:14px;font-weight:600;
  color:var(--text-light);transition:.25s;background:#fff;
}
.cat-tabs a:hover,.cat-tabs a.active{background:var(--primary);color:#fff;border-color:var(--primary)}

/* ---------- 案例页 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card.large{grid-column:span 2}

/* ---------- 联系页 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:40px}
.contact-info .ci{
  display:flex;gap:16px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:20px;margin-bottom:16px;
}
.contact-info .ci .ic{
  width:48px;height:48px;flex:none;border-radius:12px;background:var(--primary-light);
  color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800;
}
.contact-info .ci h4{font-size:15px;color:var(--primary-dark);margin-bottom:4px}
.contact-info .ci p{font-size:14px;color:var(--text-light)}
.form-box{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:28px}
.form-box h3{font-size:19px;color:var(--primary-dark);margin-bottom:18px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:13.5px;color:var(--text);margin-bottom:6px;font-weight:600}
.form-group input,.form-group textarea,.form-group select{
  width:100%;padding:11px 14px;border:1px solid var(--border);border-radius:8px;font-size:14px;
  font-family:inherit;color:var(--text);transition:.25s;background:#fff;
}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(15,76,129,.12)}

/* ---------- 新闻列表页 ---------- */
.news-grid{display:grid;grid-template-columns:1fr;gap:16px}
.news-row{
  display:flex;align-items:center;gap:20px;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius);padding:18px 22px;transition:.3s;
}
.news-row:hover{box-shadow:var(--shadow);border-color:transparent}
.news-row .d{color:var(--accent);font-weight:800;font-size:22px;flex:none;width:70px;text-align:center}
.news-row .d small{display:block;font-size:12px;color:var(--text-light);font-weight:400}
.news-row h3{font-size:16.5px;margin-bottom:6px;color:var(--text)}
.news-row h3:hover{color:var(--primary)}
.news-row p{font-size:13.5px;color:var(--text-light);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 响应式 ---------- */
@media(max-width:1024px){
  .features{grid-template-columns:repeat(2,1fr)}
  .products,.cases,.case-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(3,1fr)}
  .footer-top{grid-template-columns:1fr 1fr}
  .about-wrap,.about-main,.contact-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
  .nav-toggle{display:flex}
  .nav{
    position:fixed;top:0;right:-280px;width:280px;height:100vh;background:#fff;
    flex-direction:column;align-items:flex-start;padding:70px 24px 24px;gap:6px;
    box-shadow:-8px 0 30px rgba(0,0,0,.12);transition:right .3s;z-index:1000;
  }
  .nav.open{right:0}
  .nav a{width:100%;padding:12px 8px;font-size:16px}
  .nav a.active::after{display:none}
  .nav-cta{margin-top:12px}
  .nav .nav-cta{width:auto!important;min-width:120px!important;height:44px!important;padding:0 18px !important;display:flex!important;align-items:center!important;justify-content:center!important;align-self:flex-start!important;font-size:14px!important;text-align:center!important;box-sizing:border-box!important}
  .nav .nav-lang{width:auto!important;min-width:120px!important;height:44px!important;padding:0 18px !important;display:flex!important;align-items:center!important;justify-content:center!important;margin:10px 0 0!important;align-self:flex-start!important;font-size:14px!important;text-align:center!important;box-sizing:border-box!important}
  .topbar .container{height:auto;flex-wrap:wrap;padding:8px 12px;row-gap:4px}
  .topbar .tb-left{display:flex;flex-wrap:wrap;width:100%;row-gap:4px}
  .topbar .tb-left span{margin-right:0}
  .topbar .tb-left span:first-child{width:100%}
  .topbar .tb-left span:nth-child(n+2){margin-right:14px}
  .topbar .tb-right{display:none}
  .hero-copy h1{font-size:30px}
  .hero-inner{min-height:420px;padding:60px 20px}
  .features,.products,.cases,.case-grid,.steps,.news-list,.about-text .highlights{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .case-card.large{grid-column:span 1}
  .footer-top{grid-template-columns:1fr}
  .section{padding:52px 0}
  .section-head h2{font-size:25px}
}
/* ---------- 滚动显示动画 ---------- */
html.js .reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
html.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){ html.js .reveal{opacity:1;transform:none} }

/* ---------- 轮播遮罩（保证文字可读） ---------- */
.hero-slide::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(10,53,88,.82) 0%,rgba(10,53,88,.58) 42%,rgba(10,53,88,.12) 72%,rgba(10,53,88,0) 100%);
}