/* 浙江钻高工贸官网样式 —— 橙色品牌调性 / 浅色主题 */
:root{
  --brand:#E8730C; --brand-d:#C5610A; --brand-bg:#FFF4E8;
  --ink:#1F2329; --ink-2:#5A6472; --line:#ECEEF1;
  --bg:#FFFFFF; --bg-gray:#F7F8FA; --bg-dark:#20242B;
  --radius:14px; --shadow:0 6px 24px rgba(31,35,41,.08);
  --max:1160px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}

/* ---------- 导航 ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:10px}
.logo-mark{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--brand),#F5A25D);color:#fff;font-size:20px;font-weight:700;display:flex;align-items:center;justify-content:center}
.logo-text{font-weight:700;font-size:17px;line-height:1.2;display:flex;flex-direction:column}
.logo-text small{font-size:10px;color:var(--ink-2);letter-spacing:2px;font-weight:500}
.menu{display:flex;gap:26px;font-size:15px}
.menu a{color:var(--ink-2);padding:6px 2px;border-bottom:2px solid transparent}
.menu a:hover{color:var(--brand)}
.menu-cta{color:#fff!important;background:var(--brand);padding:8px 18px!important;border-radius:8px;border-bottom:none!important}
.menu-cta:hover{background:var(--brand-d)}
.burger{display:none;background:none;border:none;font-size:22px;color:var(--ink)}

/* ---------- 语言切换 ---------- */
.lang{display:flex;align-items:center;gap:7px;font-size:13px;font-weight:600;color:var(--ink-2);border:1.5px solid var(--line);border-radius:999px;padding:5px 13px;margin-left:4px;white-space:nowrap;transition:.2s}
.lang a{color:var(--ink-2)}
.lang a:hover{color:var(--brand)}
.lang a.on{color:var(--brand)}
.lang span{color:#C9CED6}
.lang:hover{border-color:var(--brand)}

/* ---------- 首屏 ---------- */
.hero{background:linear-gradient(180deg,#FFF9F2 0%,#fff 100%);overflow:hidden}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding-top:72px;padding-bottom:72px}
.hero-tag{color:var(--brand);font-weight:600;letter-spacing:1px;margin-bottom:14px}
.hero h1{font-size:44px;line-height:1.25;font-weight:800;margin-bottom:18px}
.hero h1 span{color:var(--brand)}
.hero-sub{color:var(--ink-2);font-size:16px;margin-bottom:26px;max-width:520px}
.hero-actions{display:flex;gap:14px;margin-bottom:34px}
.btn{display:inline-block;padding:12px 26px;border-radius:10px;font-size:15px;font-weight:600;transition:.2s}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-d)}
.btn-ghost{border:1.5px solid var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-bg)}
.hero-stats{display:flex;gap:34px}
.hero-stats div{display:flex;flex-direction:column}
.hero-stats b{font-size:24px;color:var(--ink)}
.hero-stats span{font-size:12px;color:var(--ink-2)}
.hero-img{position:relative}
.hero-img img{border-radius:20px;box-shadow:var(--shadow);aspect-ratio:1/1;object-fit:cover;width:100%}
.hero-badge{position:absolute;left:-14px;bottom:22px;background:#fff;border-radius:10px;padding:10px 16px;font-size:13px;font-weight:700;color:var(--brand);box-shadow:var(--shadow)}

/* ---------- 通用 section ---------- */
.sec{padding:76px 0}
.sec-gray{background:var(--bg-gray)}
.sec-dark{background:var(--bg-dark)}
.sec-tag{color:var(--brand);font-weight:700;letter-spacing:3px;font-size:13px}
.sec-tag.light{color:#F5A25D}
.sec-title{font-size:32px;font-weight:800;margin:6px 0 10px}
.sec-title.light{color:#fff}
.sec-desc{color:var(--ink-2);margin-bottom:26px}

/* ---------- 关于 ---------- */
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;margin-top:18px}
.about-text p{color:var(--ink-2);margin-bottom:14px}
.about-text b{color:var(--brand)}
.about-certs{display:flex;flex-wrap:wrap;gap:10px;align-content:flex-start}
.cert{background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 16px;font-size:13px;font-weight:600;color:var(--ink);box-shadow:0 2px 8px rgba(0,0,0,.04)}
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:44px}
.stat{background:linear-gradient(160deg,#FFF4E8,#fff);border:1px solid #FFE3C4;border-radius:var(--radius);padding:26px 22px}
.stat b{font-size:34px;color:var(--brand);font-weight:800}
.stat b i{font-style:normal;font-size:16px;margin-left:2px}
.stat .lb{font-weight:700;margin:2px 0}
.stat .ds{font-size:13px;color:var(--ink-2)}

/* ---------- 实力 ---------- */
.strength-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:26px}
.s-card{background:#fff;border-radius:var(--radius);padding:28px 22px;box-shadow:0 2px 10px rgba(0,0,0,.05)}
.s-ico{font-size:30px;margin-bottom:12px}
.s-card h3{font-size:17px;margin-bottom:8px}
.s-card p{font-size:14px;color:var(--ink-2)}

/* ---------- 产品 ---------- */
.cat-tabs{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0 16px}
.cat-tab{padding:10px 20px;border-radius:999px;border:1.5px solid var(--line);background:#fff;font-size:15px;font-weight:600;color:var(--ink-2);cursor:pointer;transition:.15s}
.cat-tab:hover{border-color:var(--brand);color:var(--brand)}
.cat-tab.active{background:var(--brand);border-color:var(--brand);color:#fff}
.cat-banner{position:relative;border-radius:var(--radius);overflow:hidden;margin-bottom:22px;box-shadow:var(--shadow)}
.cat-banner img{width:100%;height:190px;object-fit:cover;object-position:center}
.cat-banner .cb-text{position:absolute;inset:0;background:linear-gradient(90deg,rgba(32,36,43,.72) 0%,rgba(32,36,43,.15) 60%);display:flex;flex-direction:column;justify-content:center;padding:0 36px;color:#fff}
.cb-text h3{font-size:24px}
.cb-text p{font-size:14px;opacity:.9;max-width:440px}
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.p-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;cursor:pointer;transition:.2s}
.p-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.p-img{aspect-ratio:4/3;overflow:hidden;background:#F3F4F6}
.p-img img{width:100%;height:100%;object-fit:cover;transition:.35s}
.p-card:hover .p-img img{transform:scale(1.05)}
.p-body{padding:14px 16px 16px}
.p-name{font-weight:700;font-size:15px;margin-bottom:6px}
.p-meta{display:flex;gap:6px;flex-wrap:wrap}
.p-meta span{font-size:12px;color:var(--brand);background:var(--brand-bg);border-radius:6px;padding:2px 8px}
.p-feat{font-size:12px;color:var(--ink-2);margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 合作 ---------- */
.coop-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px}
.c-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:30px 26px;color:#fff}
.c-card h3{font-size:26px;color:#F5A25D;margin-bottom:2px}
.c-en{font-size:12px;color:rgba(255,255,255,.55);margin-bottom:12px;letter-spacing:.5px}
.c-card p:last-child{font-size:14px;color:rgba(255,255,255,.85)}
.coop-flow{margin-top:30px;display:flex;align-items:center;flex-wrap:wrap;gap:10px;justify-content:center;color:#fff;font-size:14px}
.coop-flow span{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);padding:8px 16px;border-radius:999px}
.coop-flow i{color:#F5A25D;font-style:normal}

/* ---------- 品牌 ---------- */
.brand-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-top:26px}
.brand-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px 10px;text-align:center;font-weight:700;font-size:15px;color:var(--ink-2);transition:.2s}
.brand-item:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-3px)}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:26px}
.contact-card{background:var(--bg-gray);border-radius:var(--radius);padding:30px 28px}
.contact-card h3{margin-bottom:14px}
.c-line{color:var(--ink-2);margin-bottom:8px;font-size:15px}
.c-line a{color:var(--brand);font-weight:600}
.contact-cta{margin-top:30px;background:linear-gradient(120deg,#FFF4E8,#FFE8CC);border-radius:var(--radius);padding:30px 32px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.contact-cta p{font-weight:700;font-size:17px}

/* ---------- footer ---------- */
.footer{background:var(--bg-dark);color:rgba(255,255,255,.65);padding:26px 0;font-size:13px}
.footer b{color:#fff}
.footer-inner{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}

/* ---------- 弹层 ---------- */
.modal{position:fixed;inset:0;z-index:100;display:none}
.modal.open{display:block}
.modal-mask{position:absolute;inset:0;background:rgba(0,0,0,.55)}
.modal-body{position:relative;max-width:860px;margin:6vh auto;background:#fff;border-radius:16px;overflow:hidden;display:grid;grid-template-columns:1.1fr .9fr;max-height:88vh}
.modal-body img{width:100%;height:100%;object-fit:cover;max-height:88vh}
.modal-info{padding:34px 30px;display:flex;flex-direction:column;gap:12px}
.modal-info h3{font-size:22px}
.m-chips{display:flex;gap:8px;flex-wrap:wrap}
.m-chips span{background:var(--brand-bg);color:var(--brand);font-size:13px;font-weight:600;border-radius:8px;padding:4px 12px}
.modal-info ul{list-style:none;display:flex;flex-direction:column;gap:8px;margin:6px 0 12px}
.modal-info li{padding-left:22px;position:relative;color:var(--ink-2);font-size:14px}
.modal-info li::before{content:"✓";position:absolute;left:0;color:var(--brand);font-weight:700}
.modal-close{position:absolute;top:10px;right:14px;background:#fff;border:none;font-size:26px;cursor:pointer;color:var(--ink-2);z-index:2;line-height:1}

/* ---------- 响应式 ---------- */
@media (max-width:960px){
  .hero-inner,.about-grid,.contact-grid{grid-template-columns:1fr}
  .hero h1{font-size:34px}
  .stats-row,.strength-grid{grid-template-columns:repeat(2,1fr)}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .coop-grid{grid-template-columns:1fr}
  .brand-grid{grid-template-columns:repeat(3,1fr)}
  .modal-body{grid-template-columns:1fr;margin:4vh 16px;overflow:auto}
  .modal-body img{max-height:40vh}
  .menu{position:fixed;top:64px;right:-100%;width:220px;background:#fff;flex-direction:column;padding:20px;gap:14px;box-shadow:var(--shadow);transition:.25s;height:calc(100vh - 64px)}
  .menu.open{right:0}
  .burger{display:block}
}
@media (max-width:560px){
  .prod-grid{grid-template-columns:1fr}
  .stats-row{grid-template-columns:1fr 1fr}
  .brand-grid{grid-template-columns:repeat(2,1fr)}
  .hero-stats{flex-wrap:wrap;gap:20px}
}