/* 杭州炬卡电器有限公司 — Solar Cold Chain Refrigeration
   Palette: solar blue + daylight sky + warm sun accent */

:root{
  --sky:#eef7fd;
  --sky2:#dceefb;
  --blue:#2b86c4;
  --blue2:#1e6ea6;
  --deep:#173f57;
  --ink:#1d3240;
  --muted:#5c7484;
  --line:#d3e6f2;
  --sun:#f0a92c;
  --white:#ffffff;
  --shadow:0 10px 30px rgba(23,63,87,.09);
  --shadow-sm:0 4px 14px rgba(23,63,87,.07);
  --radius:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Segoe UI","Helvetica Neue",Arial,"Microsoft YaHei",sans-serif;
  color:var(--ink);
  background:var(--white);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--blue2);text-decoration:none}
a:hover{color:var(--blue)}
h1,h2,h3,h4{line-height:1.25;color:var(--deep);margin:0 0 .5em}
h1{font-size:clamp(28px,4.2vw,50px);letter-spacing:-.5px}
h2{font-size:clamp(22px,2.7vw,34px);letter-spacing:-.3px}
h3{font-size:clamp(18px,2vw,23px)}
h4{font-size:17px}
p{margin:0 0 1em}
.wrap{max-width:1200px;margin:0 auto;padding:0 22px}

/* ---------- header ---------- */
.header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header .wrap{display:flex;align-items:center;gap:18px;min-height:70px}
.brand{display:flex;align-items:center;gap:11px;color:var(--deep)}
.brand:hover{color:var(--deep)}
.mark{width:38px;height:38px;flex:0 0 38px;border-radius:11px;background:linear-gradient(140deg,var(--sun),var(--blue));color:#fff;display:grid;place-items:center;font-weight:700;font-size:19px}
.brandtext{display:flex;flex-direction:column;line-height:1.2}
.brandtext b{font-size:15px;letter-spacing:.1px}
.brandtext small{font-size:9.5px;letter-spacing:1.4px;color:var(--muted);text-transform:uppercase}
.nav{display:flex;gap:2px;margin-left:auto;flex-wrap:wrap}
.nav a{padding:8px 11px;border-radius:8px;font-size:14px;color:var(--ink);white-space:nowrap}
.nav a:hover{background:var(--sky);color:var(--blue2)}
.nav a.on{background:var(--sky2);color:var(--blue2);font-weight:600}
.btn{display:inline-block;background:var(--blue);color:#fff;padding:11px 20px;border-radius:999px;font-size:14px;font-weight:600;border:1.5px solid var(--blue);transition:.18s;cursor:pointer}
.btn:hover{background:var(--blue2);border-color:var(--blue2);color:#fff;transform:translateY(-1px)}
.btn.secondary{background:transparent;color:var(--blue2)}
.btn.secondary:hover{background:var(--sky);color:var(--blue2)}
.btn.sun{background:var(--sun);border-color:var(--sun);color:#3a2600}
.btn.sun:hover{background:#dd9a1f;border-color:#dd9a1f;color:#3a2600}

/* ---------- hero ---------- */
.hero{background:
  radial-gradient(1100px 460px at 88% -12%,rgba(240,169,44,.20),transparent 62%),
  linear-gradient(165deg,var(--sky) 0%,#f7fcff 58%,var(--white) 100%);
  padding:62px 0 54px;border-bottom:1px solid var(--line)}
.hero .wrap{display:grid;grid-template-columns:1.06fr .94fr;gap:44px;align-items:center}
.eyebrow{font-size:11.5px;letter-spacing:2.1px;text-transform:uppercase;color:var(--sun);font-weight:700;margin-bottom:12px}
.hero p.lead{font-size:17.5px;color:var(--muted);max-width:620px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0 22px}
.badges{display:flex;gap:8px;flex-wrap:wrap}
.badge{background:var(--white);border:1px solid var(--line);color:var(--blue2);font-size:12.5px;padding:6px 12px;border-radius:999px;box-shadow:var(--shadow-sm)}
.hero-card{background:var(--white);border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:var(--shadow)}
.hero-card img{width:100%;border-radius:11px;aspect-ratio:1/1;object-fit:cover}
.hero-card figcaption{font-size:12.5px;color:var(--muted);padding:10px 4px 2px;text-align:center}

/* ---------- stats ---------- */
.stats{background:var(--deep);color:#fff}
.stats .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding:26px 22px}
.stat{text-align:center;padding:6px 10px;border-right:1px solid rgba(255,255,255,.14)}
.stat:last-child{border-right:0}
.stat strong{display:block;font-size:clamp(20px,2.6vw,29px);color:var(--sun);letter-spacing:-.5px}
.stat span{font-size:12.5px;color:#b9d3e2;letter-spacing:.4px}

/* ---------- sections ---------- */
section{padding:62px 0}
section.soft{background:var(--sky)}
section.tight{padding:44px 0}
.section-head{display:grid;grid-template-columns:1fr .85fr;gap:30px;align-items:end;margin-bottom:34px}
.section-head p{color:var(--muted);margin:0}
.section-head.center{display:block;text-align:center;max-width:760px;margin:0 auto 34px}

/* ---------- grids ---------- */
.grid{display:grid;gap:20px}
.cat-grid{grid-template-columns:repeat(4,1fr)}
.product-grid{grid-template-columns:repeat(4,1fr)}
.part-grid{grid-template-columns:repeat(4,1fr)}
.cat{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:.2s;display:flex;flex-direction:column}
.cat:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#b9d9ee}
.cat .pic{background:var(--sky);padding:14px;aspect-ratio:1/1}
.cat .pic img{width:100%;height:100%;object-fit:contain;border-radius:9px}
.cat .body{padding:15px 17px 18px;flex:1;display:flex;flex-direction:column}
.cat h3{font-size:16.5px;margin:0 0 7px}
.cat p{font-size:13px;color:var(--muted);margin:0 0 12px;flex:1}
.cat .mini{font-size:12px;color:var(--blue2);font-weight:600}

.product{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:.2s;display:flex;flex-direction:column}
.product:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#b9d9ee}
.product .pic{background:#fbfdff;padding:10px;aspect-ratio:1/1;display:grid;place-items:center;border-bottom:1px solid var(--line)}
.product .pic img{width:100%;height:100%;object-fit:contain}
.product .body{padding:13px 15px 16px;display:flex;flex-direction:column;flex:1}
.product .model{font-weight:700;color:var(--deep);font-size:15px;margin:0 0 4px}
.product .spec{font-size:12.5px;color:var(--muted);margin:0 0 3px}
.product .more{margin-top:11px;font-size:12.5px;font-weight:600;color:var(--blue2)}
.chipsrow{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.chipmini{font-size:11px;background:var(--sky);color:var(--blue2);border-radius:6px;padding:2px 8px;border:1px solid var(--line)}
.taggrp{display:inline-block;font-size:10.5px;letter-spacing:1.1px;text-transform:uppercase;font-weight:700;padding:3px 9px;border-radius:999px}
.taggrp.solar{background:#fff3dc;color:#a9700c;border:1px solid #f6dfb4}
.taggrp.ac{background:var(--sky2);color:var(--blue2);border:1px solid #c3e0f4}

/* ---------- parts ---------- */
.part{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-sm);transition:.2s}
.part:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#b9d9ee}
.part .pic{background:#fbfdff;padding:12px;aspect-ratio:1/1;display:grid;place-items:center;border-bottom:1px solid var(--line)}
.part .pic img{width:100%;height:100%;object-fit:contain}
.part .body{padding:14px 16px 17px;flex:1}
.part h3{font-size:15.5px;margin:0 0 6px}
.part p{font-size:12.5px;color:var(--muted);margin:0}

/* ---------- split / feature ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:42px;align-items:center}
.split.rev .photo-box{order:2}
.photo-box{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:11px;box-shadow:var(--shadow)}
.photo-box img{width:100%;border-radius:9px;aspect-ratio:4/3;object-fit:cover}
.copy .eyebrow{margin-bottom:9px}
.copy p{color:var(--muted)}
.copy ul{margin:0 0 1em;padding-left:20px;color:var(--muted)}
.copy li{margin-bottom:7px}
.blueband{background:var(--deep);color:#fff}
.blueband h2,.blueband h3,.blueband h4{color:#fff}
.blueband .section-head p{color:#b9d3e2}
.blueband .eyebrow{color:var(--sun)}
.feature-row{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feature-row.four{grid-template-columns:repeat(4,1fr)}
.feature{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);padding:18px 19px}
.feature b{display:block;color:var(--sun);margin-bottom:7px;font-size:15px}
.feature p{margin:0;font-size:13.5px;color:#cfe3ee}
.feature .num{font-size:11px;letter-spacing:1.6px;color:var(--sun);font-weight:700;display:block;margin-bottom:6px}

/* ---------- scenario cards ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.scene{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column}
.scene img{aspect-ratio:16/10;object-fit:cover;width:100%}
.scene .body{padding:16px 17px 18px;flex:1}
.scene .body b{color:var(--deep);display:block;margin-bottom:6px;font-size:15px}
.scene .body p{font-size:13px;color:var(--muted);margin:0}

/* ---------- cta ---------- */
.cta{background:linear-gradient(120deg,var(--blue2),var(--blue) 62%,#3f9ed4);color:#fff;border-radius:18px;padding:34px 38px;display:flex;align-items:center;justify-content:space-between;gap:26px;box-shadow:var(--shadow)}
.cta h3{color:#fff;margin:0 0 6px}
.cta p{margin:0;color:#dcecf7;font-size:14.5px}
.cta .btn{background:#fff;color:var(--blue2);border-color:#fff;flex:0 0 auto}
.cta .btn:hover{background:var(--sun);color:#3a2600;border-color:var(--sun)}

/* ---------- page hero ---------- */
.pagehero{background:linear-gradient(160deg,var(--sky) 0%,#f8fcff 70%);padding:40px 0 34px;border-bottom:1px solid var(--line)}
.pagehero h1{font-size:clamp(24px,3.2vw,38px);margin-bottom:10px}
.pagehero p{color:var(--muted);max-width:820px;margin:0}
.crumb{font-size:12.5px;color:var(--muted);margin-bottom:12px}
.crumb a{color:var(--blue2)}

/* ---------- toolbar ---------- */
.toolbar{display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin-bottom:22px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{background:var(--white);border:1px solid var(--line);color:var(--ink);font-size:13px;padding:7px 14px;border-radius:999px;cursor:pointer;transition:.16s}
.chip:hover{border-color:var(--blue);color:var(--blue2)}
.chip.on{background:var(--blue);border-color:var(--blue);color:#fff;font-weight:600}
.chip.grp{background:var(--deep);border-color:var(--deep);color:#fff}
.chip.grp.on{background:var(--sun);border-color:var(--sun);color:#3a2600}
.search{border:1px solid var(--line);border-radius:999px;padding:9px 16px;font-size:13.5px;min-width:230px;color:var(--ink);background:var(--white)}
.search:focus{outline:none;border-color:var(--blue)}
.count{font-size:13px;color:var(--muted)}
.empty{padding:60px 20px;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:var(--radius);background:var(--sky)}

/* ---------- product detail ---------- */
.detail{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;padding:52px 0}
.visual{background:var(--sky);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-sm)}
.visual img{width:100%;border-radius:10px;background:#fff}
.detail h1{font-size:clamp(24px,3vw,36px);margin-bottom:6px}
.detail .lead{color:var(--muted);font-size:15.5px}
.spec{margin:0;border-top:1px solid var(--line)}
.spec div{display:grid;grid-template-columns:200px 1fr;gap:14px;padding:11px 2px;border-bottom:1px solid var(--line);font-size:14px}
.spec div b{color:var(--deep);font-weight:600}
.spec div span{color:var(--muted)}
.tags{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0 24px}
.tagline{font-size:12px;background:var(--sky2);color:var(--blue2);border-radius:999px;padding:5px 13px;border:1px solid #c3e0f4}
.related-cats{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px;font-size:13px}

/* ---------- workshop ---------- */
.workshop-hero{display:grid;grid-template-columns:1.1fr .9fr;gap:38px;align-items:center}
.workshop-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.workshop-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:.2s}
.workshop-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.workshop-card img{aspect-ratio:4/3;object-fit:cover;width:100%}
.workshop-card .body{padding:16px 17px 19px}
.workshop-card b{display:block;color:var(--deep);margin-bottom:6px}
.workshop-card p{font-size:13px;color:var(--muted);margin:0}

/* ---------- quality / cert ---------- */
.cert-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:center}
.cert-image{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:12px;box-shadow:var(--shadow)}
.cert-image img{width:100%;border-radius:9px}
.cert-tags{display:flex;gap:9px;flex-wrap:wrap;margin-top:18px}
.cert-tags span{font-size:12.5px;border:1px solid var(--line);background:var(--white);color:var(--blue2);border-radius:999px;padding:6px 13px}
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.check{background:var(--white);border:1px solid var(--line);border-left:4px solid var(--sun);border-radius:10px;padding:16px 18px;box-shadow:var(--shadow-sm)}
.check b{display:block;color:var(--deep);margin-bottom:5px;font-size:15px}
.check p{font-size:13px;color:var(--muted);margin:0}

/* ---------- global ---------- */
.map-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.map-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-sm)}
.map-card b{display:block;color:var(--deep);margin-bottom:7px}
.map-card p{font-size:13px;color:var(--muted);margin:0}

/* ---------- news ---------- */
.news-layout{display:grid;grid-template-columns:1fr 300px;gap:36px;align-items:start}
.news-side{background:var(--sky);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.news-side h4{margin-bottom:12px}
.news-side a{display:block;font-size:13.5px;padding:8px 0;border-bottom:1px dashed var(--line)}
.news-side a:last-child{border-bottom:0}
.news-list{display:grid;gap:18px}
.news-item{display:grid;grid-template-columns:230px 1fr;gap:22px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:.2s}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.news-thumb{background:var(--sky);padding:10px;display:grid;place-items:center}
.news-thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:9px}
.news-body{padding:20px 22px 22px 0}
.news-meta{font-size:12px;color:var(--sun);font-weight:700;letter-spacing:1.1px;text-transform:uppercase;margin-bottom:7px}
.news-body h3{font-size:18px;margin-bottom:8px}
.news-body p{font-size:13.5px;color:var(--muted);margin:0}
.news-article{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:30px 34px;box-shadow:var(--shadow-sm)}
.news-article h2{font-size:24px}
.news-article img{width:100%;border-radius:10px;margin:14px 0 18px;aspect-ratio:16/9;object-fit:cover}
.news-article p{color:var(--muted)}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:36px;align-items:start}
.contact-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:26px 28px;box-shadow:var(--shadow-sm)}
.contact-card h3{margin-bottom:14px}
.contact-card dl{margin:0}
.contact-card dt{font-size:11.5px;letter-spacing:1.3px;text-transform:uppercase;color:var(--sun);font-weight:700;margin-top:16px}
.contact-card dd{margin:4px 0 0;font-size:14.5px;color:var(--ink)}
.form-card{background:var(--sky);border:1px solid var(--line);border-radius:var(--radius);padding:26px 28px}

.contact-visual{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);background:var(--sky);align-self:start}
.contact-visual img{display:block;width:100%;height:auto}.field{margin-bottom:15px}
.field label{display:block;font-size:12.5px;font-weight:600;color:var(--deep);margin-bottom:5px}
.field input,.field textarea,.field select{width:100%;border:1px solid var(--line);border-radius:9px;padding:11px 13px;font-size:14px;font-family:inherit;color:var(--ink);background:var(--white)}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--blue)}
.field textarea{min-height:110px;resize:vertical}
.form-note{font-size:12px;color:var(--muted);margin:12px 0 0}
.field-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}

/* ---------- footer ---------- */
.footer{background:var(--deep);color:#c5dae6;padding:52px 0 24px;margin-top:10px}
.footer h4{color:#fff;font-size:14px;letter-spacing:.6px;margin-bottom:12px}
.footer p{font-size:13.5px;color:#a9c6d6;margin:0 0 6px}
.footer a{color:#cfe3ee}
.footer a:hover{color:var(--sun)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:34px;padding-bottom:30px;border-bottom:1px solid rgba(255,255,255,.13)}
.footer .brandtext b{color:#fff}
.footer .brandtext small{color:#9fbdcf}
.copyline{font-size:12.5px;color:#8fb0c2;padding-top:18px;text-align:center}

/* ---------- misc ---------- */
.note{background:var(--sky);border:1px solid var(--line);border-left:4px solid var(--blue);border-radius:10px;padding:15px 18px;font-size:13.5px;color:var(--muted);margin:22px 0}
.notice{font-size:12.5px;color:var(--muted);margin-top:14px}
.gal{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px}
.gal img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:10px;border:1px solid var(--line);background:#fff}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .cat-grid,.product-grid,.part-grid,.scene-grid{grid-template-columns:repeat(3,1fr)}
  .feature-row,.feature-row.four{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:980px){
  .hero .wrap,.split,.split.rev,.cert-wrap,.workshop-hero,.detail,.contact-grid,.news-layout{grid-template-columns:1fr}
  .split.rev .photo-box{order:0}
  .section-head{grid-template-columns:1fr;align-items:start}
  .stats .wrap{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .nav{display:none}
  .workshop-grid,.map-grid{grid-template-columns:repeat(2,1fr)}
  .news-item{grid-template-columns:1fr}
  .news-body{padding:0 20px 20px}
  .news-thumb{padding:12px 12px 0}
  .cta{flex-direction:column;text-align:center;align-items:stretch}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .hero{padding:44px 0 38px}
  .gal{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  body{font-size:15px}
  section{padding:44px 0}
  .cat-grid,.product-grid,.part-grid,.scene-grid,.feature-row,.feature-row.four,.workshop-grid,.map-grid,.check-grid,.footer-grid,.gal,.field-2{grid-template-columns:1fr}
  .stats .wrap{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid rgba(255,255,255,.14)}
  .stat:last-child{border-bottom:0}
  .toolbar{flex-direction:column;align-items:stretch}
  .search{min-width:0;width:100%}
  .spec div{grid-template-columns:1fr;gap:2px}
  .cta{padding:26px 22px}
  .news-article{padding:22px 20px}
  .contact-card,.form-card{padding:22px 20px}
  .hero-card img{aspect-ratio:4/3}
}