:root{
  --ink:#0d1b2a; --ink-2:#3d4c5f; --muted:#6b7a8d;
  --brand:#0f52d8; --brand-2:#0aa6c9; --bg:#f6f8fb; --line:#e3e9f2;
  --r:12px; --shadow:0 8px 28px rgba(13,27,42,.08);
}
*{box-sizing:border-box}
body{margin:0;font:15px/1.7 -apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#fff}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}

/* header */
.hd{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.hd-in{display:flex;align-items:center;gap:18px;height:70px;min-width:0}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;min-width:0}
.brand-mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;font-weight:800;display:grid;place-items:center;font-size:15px}
.brand-txt{font-weight:700;font-size:15.5px;letter-spacing:.2px;white-space:nowrap}
.nav{display:flex;gap:2px;flex:1;min-width:0;justify-content:flex-end}
.nav-a{padding:7px 10px;border-radius:8px;color:var(--ink-2);white-space:nowrap;font-size:14px}
.nav-a:hover{background:var(--bg);color:var(--brand)}
.hd-right{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.lang{border:1px solid var(--line);border-radius:8px;padding:4px 10px;font-size:13px;color:var(--ink-2)}
.tel{font-weight:700;color:var(--brand);font-size:14px;white-space:nowrap}
.menu-btn{display:none;flex-direction:column;gap:4px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:9px 8px;cursor:pointer}
.menu-btn i{width:16px;height:2px;background:var(--ink-2);display:block;border-radius:2px}
@media(max-width:1400px){.hd-right .tel{display:none}.nav-a{padding:7px 9px;font-size:13.5px}}
@media(max-width:1180px){.hd-in{gap:14px}.nav-a{padding:7px 8px;font-size:13.5px}.brand-txt{font-size:14.5px}}

/* hero */
.hero{position:relative;background:var(--ink)}
.hero-slides{position:relative;height:520px}
.slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transition:opacity .7s;display:flex;align-items:center}
.slide.on{opacity:1}
.slide-mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(9,18,30,.86),rgba(9,18,30,.35) 55%,rgba(9,18,30,.1))}
.slide-txt{position:relative;color:#fff;max-width:760px}
.slide-txt h1{font-size:42px;line-height:1.2;margin:0 0 14px;letter-spacing:.5px}
.slide-txt p{color:#cfd9e6;margin:0 0 24px}
.dot{position:absolute;bottom:22px;left:50%;transform:translateX(-50%)}
.dots{display:flex;gap:8px;justify-content:center;padding:16px 0 20px;background:var(--ink)}
.dot{position:static;transform:none;width:26px;height:4px;border-radius:2px;background:#3a4a5e;cursor:pointer}
.dot.on{background:var(--brand-2)}
.hero-solo{background:linear-gradient(120deg,#0a1a2e,#123c6b);color:#fff;padding:90px 0}
.hero-solo h1{font-size:40px;margin:0 0 12px}
.hero-solo p{color:#c8d6e6;max-width:640px;margin:0 0 26px}

/* 卡片式轮播 */
.hero-cards{background:linear-gradient(180deg,#eef3fb 0%,#ffffff 100%);padding:54px 0 30px;overflow:hidden}
.hc-stage{position:relative;max-width:1200px;height:500px;margin:0 auto;padding:0 20px;box-sizing:border-box}
.hc-card{position:absolute;left:50%;top:50%;width:1160px;max-width:calc(100% - 40px);height:450px;display:flex;border-radius:24px;background:#fff;box-shadow:0 20px 54px rgba(13,27,42,.15);overflow:hidden;opacity:0;pointer-events:none;transform:translate(-50%,-50%) scale(.92);transition:opacity .55s ease,transform .55s ease,box-shadow .55s ease;z-index:1}
.hc-card.on{opacity:1;transform:translate(-50%,-50%) scale(1);pointer-events:auto;z-index:3;box-shadow:0 30px 70px rgba(15,82,216,.2)}
.hc-card.next{opacity:0;transform:translate(-50%,-50%) scale(.98);z-index:1}
.hc-txt{flex:1.15;padding:70px 64px;display:flex;flex-direction:column;justify-content:center;min-width:0}
.hc-eyebrow{display:inline-block;align-self:flex-start;font-size:13.5px;font-weight:700;letter-spacing:1.8px;color:var(--brand);background:#e8f0ff;padding:6px 16px;border-radius:999px;margin-bottom:24px}
.hc-txt h2{font-size:38px;line-height:1.28;margin:0 0 18px;color:var(--ink)}
.hc-txt p{color:var(--ink-2);font-size:17px;margin:0 0 32px;line-height:1.75;max-width:560px}
.hc-txt .btn{align-self:flex-start;font-size:16px;padding:15px 34px}
.hc-visual{flex:1;position:relative;background:linear-gradient(140deg,#0f3a8a,#0aa6c9);overflow:hidden}
.hc-card[data-theme="2"] .hc-visual{background:linear-gradient(140deg,#162a5e,#3563d8)}
.hc-visual.has-img{background-size:cover;background-position:center}
.hc-deco{position:absolute;border:1.5px solid rgba(255,255,255,.22);border-radius:16px}
.hc-deco.d1{width:220px;height:160px;right:58px;top:78px}
.hc-deco.d2{width:300px;height:104px;right:86px;bottom:132px}
.hc-deco.d3{width:140px;height:140px;right:275px;bottom:58px;border-radius:22px}
.hc-arrow{display:none;position:absolute;top:50%;transform:translateY(-50%);z-index:6;width:44px;height:44px;border-radius:50%;border:1px solid rgba(227,233,242,.9);background:rgba(255,255,255,.92);color:var(--ink-2);font-size:24px;line-height:1;cursor:pointer;box-shadow:var(--shadow)}
.hc-arrow:hover{color:var(--brand);border-color:var(--brand)}
.hc-arrow.prev{left:22px}
.hc-arrow.next{right:22px}
.hc-dots{display:flex;gap:8px;justify-content:center;padding:14px 0 10px}
.hc-dot{width:24px;height:5px;border-radius:3px;border:0;background:#c9d5e4;cursor:pointer;padding:0}
.hc-dot.on{background:var(--brand)}

.btn{display:inline-block;background:var(--brand);color:#fff;padding:12px 26px;border-radius:999px;font-weight:600;border:0;cursor:pointer;font-size:15px}
.btn:hover{background:#0b46bd}
.btn.ghost{background:transparent;border:1px solid #fff;color:#fff}
.btn.ghost:hover{background:rgba(255,255,255,.14)}

/* sections */
.sec{padding-top:56px;padding-bottom:56px}
.sec-hd{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:26px}
.sec-hd h2{font-size:26px;margin:0;letter-spacing:.5px}
.sec-hd h2:after{content:"";display:block;width:44px;height:3px;margin-top:8px;background:linear-gradient(90deg,var(--brand),var(--brand-2));border-radius:2px}
.more{color:var(--muted);font-size:14px}
.count{color:var(--muted);font-size:13.5px}

.grid-prod{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfe0f7}
.card-img{aspect-ratio:4/3;background-size:cover;background-position:center;background-color:#eef3f9}
.card-body{padding:16px 18px 20px}
.card-body h3{margin:0 0 6px;font-size:16px}
.card-body p{margin:0;color:var(--muted);font-size:13.5px;min-height:20px}
.price{display:inline-block;margin-top:10px;color:#d8341e;font-weight:700}

.news-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.news-list li{border-bottom:1px solid var(--line)}
.news-list a{display:flex;gap:18px;padding:16px 4px;align-items:baseline}
.news-list a:hover .news-ttl{color:var(--brand)}
.news-date{color:var(--muted);font-size:13px;flex:0 0 92px;font-variant-numeric:tabular-nums}
.news-ttl{font-weight:600}
.news-sum{color:var(--muted);font-size:13.5px;margin-left:auto}
.news-list.big a{display:grid;grid-template-columns:96px 1fr;gap:6px 18px}
.news-list.big .news-sum{grid-column:2;margin-left:0;line-height:1.75}

/* about */
.about{background:var(--bg);padding:64px 0}
.about-in{display:grid;grid-template-columns:1.4fr 1fr;gap:48px;align-items:center}
.about-txt h2{margin:0 0 12px;font-size:26px}
.about-txt p{color:var(--ink-2);margin:0 0 20px}
.about-txt .btn{background:var(--ink)}
.about-num{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;text-align:center}
.about-num b{display:block;font-size:34px;color:var(--brand);line-height:1.1}
.about-num span{color:var(--muted);font-size:13px}

/* footer */
.ft{background:#0a1522;color:#c3d0de;padding:48px 0 20px;margin-top:20px}
.ft-in{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px}
.ft-brand{color:#fff;font-size:18px;font-weight:700;margin-bottom:10px}
.ft-desc{color:#8fa3b8;margin:0;font-size:13.5px}
.ft-t{color:#fff;font-weight:600;margin-bottom:10px}
.ft p{margin:4px 0;font-size:13.5px}
.ft a:hover{color:#fff}
.ft-copy{border-top:1px solid #1d2c3d;margin-top:30px;padding-top:16px;display:flex;gap:16px;justify-content:space-between;font-size:12.5px;color:#7c8fa3}

/* crumb */
.crumb{padding-top:20px;color:var(--muted);font-size:13.5px}
.crumb a:hover{color:var(--brand)}

/* detail */
.detail{max-width:900px}
.detail h1{font-size:30px;line-height:1.35;margin:10px 0 10px}
.meta{color:var(--muted);font-size:13px;margin-bottom:22px}
.detail-cover{margin:0 0 24px;border-radius:var(--r);overflow:hidden;background:#f1f5fa}
.detail-body{font-size:15.5px;line-height:1.9;color:#22303f}
.detail-body img{border-radius:8px;margin:10px 0}
.buy{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:32px;padding:20px;background:var(--bg);border-radius:var(--r)}
.buy .price{font-size:26px;margin:0}
.qty{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#fff}
.qty button{width:38px;height:40px;border:0;background:#fff;cursor:pointer;font-size:16px}
.qty button:hover{background:var(--bg)}
.qty input{width:52px;height:40px;border:0;border-left:1px solid var(--line);border-right:1px solid var(--line);text-align:center;font-size:15px}

/* forms */
.form{display:grid;gap:14px;max-width:520px}
.form label{display:grid;gap:6px;font-size:13.5px;color:var(--ink-2)}
.form input,.form textarea{border:1px solid var(--line);border-radius:9px;padding:11px 13px;font:inherit;background:#fff}
.form input:focus,.form textarea:focus{outline:2px solid #cfe0ff;border-color:#9dc2ff}
.form .btn{justify-self:start;margin-top:6px}
.form-tip{font-size:13px;color:var(--muted)}
.form-h1{margin:0 0 8px;font-size:24px}
.form-sub{color:var(--muted);margin:0 0 22px}
.two-col{display:grid;grid-template-columns:1.5fr 1fr;gap:44px;align-items:start}
.side-contact{background:var(--bg);border-radius:var(--r);padding:22px}
.side-contact h3{margin:0 0 8px}
.side-contact p{margin:4px 0;font-size:13.5px;color:var(--ink-2)}

/* cart */
.cart-tb{width:100%;border-collapse:collapse;font-size:14px}
.cart-tb th{text-align:left;color:var(--muted);font-weight:600;border-bottom:1px solid var(--line);padding:10px 8px}
.cart-tb td{border-bottom:1px solid var(--line);padding:14px 8px;vertical-align:middle}
.ct-prod{display:flex;align-items:center;gap:12px}
.ct-img{width:64px;height:48px;border-radius:8px;background-size:cover;background-position:center;background-color:#eef3f9;flex:0 0 auto}
.link-del{border:0;background:none;color:var(--muted);cursor:pointer;font-size:13px}
.cart-total{text-align:right;padding:18px 8px;font-size:15px}
.cart-total b{font-size:24px;color:#d8341e}
.mt{margin-top:44px}

/* misc */
.empty{padding:60px 0;text-align:center;color:var(--muted)}
.empty a{color:var(--brand)}
.pager{display:flex;gap:6px;justify-content:center;padding:30px 0 0}
.pager a{min-width:36px;height:36px;display:grid;place-items:center;border:1px solid var(--line);border-radius:8px;color:var(--ink-2);font-size:14px}
.pager a.on{background:var(--brand);color:#fff;border-color:var(--brand)}
.page-one{max-width:900px}
.done{text-align:center;max-width:760px;padding:70px 20px 0}
.done-ico{width:64px;height:64px;border-radius:50%;background:#e7f7ee;color:#12a05a;font-size:30px;display:grid;place-items:center;margin:0 auto 16px}
.done h1{font-size:26px;margin:0 0 10px}
.done .cart-tb{margin:24px 0}
.done .btn{margin-top:8px}
.done-sub{color:var(--muted)}
.cat-desc{color:var(--muted);margin:0 0 20px}
.links .link-row{display:flex;flex-wrap:wrap;gap:10px}
.links .link-row a{border:1px solid var(--line);border-radius:8px;padding:6px 14px;font-size:13.5px;color:var(--ink-2)}
.links .link-row a:hover{border-color:#bcd4f7;color:var(--brand)}
.attach{margin:22px 0}
.attach a{color:var(--brand)}
.cart-fab{position:fixed;right:22px;bottom:28px;z-index:60}
.cart-fab a{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:999px;padding:10px 18px;font-size:14px;color:var(--ink)}
.cart-fab b{color:#d8341e}

/* responsive */
@media(max-width:960px){
  .grid-prod{grid-template-columns:repeat(2,1fr)}
  .about-in,.two-col,.ft-in{grid-template-columns:1fr}
  .hero-slides{height:400px}
  .slide-txt h1{font-size:28px}
  .nav{position:absolute;top:70px;left:0;right:0;background:#fff;flex-direction:column;gap:0;padding:8px 20px 12px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);display:none}
  .nav.open{display:flex}
  .nav-a{padding:10px 12px;border-radius:8px}
  .menu-btn{display:flex}
  .hd-in{justify-content:space-between}
}
@media(max-width:640px){
  .wrap{padding:0 16px}
  .hero-slides{height:300px}
  .slide-txt h1{font-size:22px}
  .slide-txt p{display:none}
  .sec{padding-top:36px;padding-bottom:36px}
  .sec-hd h2{font-size:21px}
  .grid-prod{grid-template-columns:1fr 1fr;gap:12px}
  .news-list a{flex-wrap:wrap;gap:4px}
  .news-date{flex:0 0 auto}
  .buy{gap:10px}
  .cart-tb{font-size:13px}
  .ct-img{display:none}
  .ft-copy{flex-direction:column;gap:6px}
}
@media(max-width:960px){
  .hero-cards{padding:28px 0 18px}
  .hc-stage{height:420px;padding:0 16px}
  .hc-card{height:380px;max-width:calc(100% - 32px)}
  .hc-card.next{opacity:0;transform:translate(-50%,-50%) scale(.97)}
  .hc-txt{padding:38px 30px}
  .hc-txt h2{font-size:26px}
  .hc-txt p{font-size:15px}
  .hc-visual{display:none}
  .hc-arrow{display:none}
}
@media(max-width:640px){
  .hc-stage{height:350px}
  .hc-card{height:320px}
  .hc-txt{padding:26px 22px}
  .hc-txt h2{font-size:22px}
  .hc-txt p{font-size:14px;margin-bottom:20px}
}