/* ============================================================
   HCY Machinery - Bakery Equipment B2B Website
   Professional / Clean / Responsive
   主色：藏青 #1A2B4A | 强调：琥珀 #D9A441 | 浅灰底 #F4F6F9
   ============================================================ */
:root{
  --navy:#1A2B4A;
  --navy-light:#2E4266;
  --slate:#758092;
  --amber:#D9A441;
  --amber-dark:#B8860B;
  --bg-soft:#F4F6F9;
  --line:#E3E7EE;
  --text:#232B3A;
  --white:#ffffff;
  --radius:10px;
  --shadow:0 4px 18px rgba(26,43,74,.08);
  --shadow-lg:0 10px 30px rgba(26,43,74,.14);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",Roboto,Helvetica,Arial,sans-serif;color:var(--text);line-height:1.7;background:var(--white);}
img{max-width:100%;display:block;}
a{text-decoration:none;color:inherit;}
ul{list-style:none;}

/* ---------- 顶部导航 ---------- */
.topbar{background:var(--navy);color:#cfd6e3;font-size:13px;padding:8px 0;}
.topbar .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:6px;}
.topbar a{color:#cfd6e3;}
.topbar a:hover{color:var(--amber);}
.container{width:min(1160px,92%);margin:0 auto;}

.header{position:sticky;top:0;z-index:100;background:var(--white);box-shadow:0 1px 0 var(--line);}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px;}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--navy);}
.logo .mark{width:38px;height:38px;border-radius:8px;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;font-size:17px;}
.logo small{display:block;font-size:11px;font-weight:600;color:var(--slate);letter-spacing:.5px;text-transform:uppercase;}
.nav-menu{display:flex;align-items:center;gap:28px;}
.nav-menu a{font-size:15px;font-weight:600;color:var(--text);transition:.2s;}
.nav-menu a:hover,.nav-menu a.active{color:var(--amber-dark);}
.nav-cta{background:var(--amber);color:#3a2a00!important;padding:10px 20px;border-radius:30px;font-weight:700;font-size:14px!important;}
.nav-cta:hover{background:var(--amber-dark);color:#fff!important;}
.nav-toggle{display:none;background:none;border:none;font-size:26px;color:var(--navy);cursor:pointer;}

/* ---------- 通用块 ---------- */
.section{padding:72px 0;}
.section.soft{background:var(--bg-soft);}
.sec-head{max-width:720px;margin-bottom:44px;}
.sec-head .kicker{color:var(--amber-dark);font-weight:700;letter-spacing:2px;text-transform:uppercase;font-size:13px;margin-bottom:8px;}
.sec-head h2{font-size:34px;color:var(--navy);line-height:1.25;font-weight:800;margin-bottom:12px;}
.sec-head p{color:var(--slate);font-size:16px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-light) 60%,#3d5478 100%);color:#fff;padding:96px 0;position:relative;overflow:hidden;}
.hero::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:rgba(217,164,65,.14);}
.hero::before{content:"";position:absolute;left:-100px;bottom:-160px;width:360px;height:360px;border-radius:50%;background:rgba(255,255,255,.05);}
.hero .container{position:relative;z-index:2;}
.hero h1{font-size:46px;font-weight:900;line-height:1.2;margin-bottom:18px;}
.hero h1 .hl{color:var(--amber);}
.hero p.lead{font-size:18px;color:#c9d2e0;max-width:640px;margin-bottom:30px;}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap;}
.btn{display:inline-block;padding:14px 30px;border-radius:30px;font-weight:700;font-size:15px;transition:.2s;}
.btn-amber{background:var(--amber);color:#3a2a00;}
.btn-amber:hover{background:#fff;color:var(--navy);}
.btn-ghost{border:2px solid rgba(255,255,255,.7);color:#fff;}
.btn-ghost:hover{background:#fff;color:var(--navy);}
.hero-stats{display:flex;gap:44px;margin-top:48px;flex-wrap:wrap;}
.hero-stats .num{font-size:30px;font-weight:900;color:var(--amber);}
.hero-stats .lbl{font-size:13px;color:#c9d2e0;}

/* ---------- 信任条 ---------- */
.trust-band{background:var(--white);border-bottom:1px solid var(--line);}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;text-align:center;}
.trust-item{padding:26px 18px;border-right:1px solid var(--line);}
.trust-item:last-child{border-right:none;}
.trust-item .ic{font-size:26px;margin-bottom:8px;}
.trust-item .t{font-weight:800;color:var(--navy);font-size:16px;}
.trust-item .s{font-size:13px;color:var(--slate);}

/* ---------- 产品卡片 ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.prod-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s;display:flex;flex-direction:column;}
.prod-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);}
.prod-card .thumb{height:220px;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;color:var(--slate);font-size:14px;overflow:hidden;}
.prod-card .thumb img{width:100%;height:100%;object-fit:cover;}
.prod-card .body{padding:22px;}
.prod-card h3{color:var(--navy);font-size:19px;margin-bottom:8px;}
.prod-card p{color:var(--slate);font-size:14px;margin-bottom:16px;flex:1;}
.prod-card .more{color:var(--amber-dark);font-weight:700;font-size:14px;}

/* ---------- 为什么选我们 ---------- */
.why-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.why-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;display:flex;gap:16px;}
.why-item .ic{flex-shrink:0;width:52px;height:52px;border-radius:12px;background:var(--navy);color:var(--amber);display:flex;align-items:center;justify-content:center;font-size:24px;}
.why-item h4{color:var(--navy);margin-bottom:6px;font-size:17px;}
.why-item p{color:var(--slate);font-size:14px;}

/* ---------- 市场 ---------- */
.market-band{background:var(--navy);color:#fff;}
.market-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:36px;}
.market-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);padding:26px;}
.market-card .flag{font-size:30px;margin-bottom:10px;}
.market-card h4{font-size:18px;margin-bottom:8px;color:#fff;}
.market-card p{color:#c9d2e0;font-size:14px;}

/* ---------- CTA ---------- */
.cta-band{background:linear-gradient(120deg,var(--amber) 0%,#e8b64a 100%);text-align:center;padding:56px 0;color:#3a2a00;}
.cta-band h2{font-size:32px;font-weight:900;margin-bottom:10px;}
.cta-band p{font-size:16px;margin-bottom:26px;opacity:.85;}
.btn-dark{background:var(--navy);color:#fff;}
.btn-dark:hover{background:#0e1a30;}

/* ---------- 详情页 ---------- */
.breadcrumb{background:var(--bg-soft);padding:16px 0;font-size:14px;color:var(--slate);border-bottom:1px solid var(--line);}
.breadcrumb a{color:var(--slate);}
.breadcrumb a:hover{color:var(--amber-dark);}
.breadcrumb .sep{margin:0 8px;color:#b9c2cf;}
.prod-detail{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;}
.prod-detail .gallery .main-img{aspect-ratio:1/1;background:var(--bg-soft);border-radius:var(--radius);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--slate);overflow:hidden;}
.prod-detail .gallery .main-img img{width:100%;height:100%;object-fit:cover;}
.prod-info h1{color:var(--navy);font-size:32px;font-weight:900;margin-bottom:10px;}
.prod-info .tagline{color:var(--amber-dark);font-weight:700;margin-bottom:16px;font-size:15px;}
.prod-info .desc{color:var(--text);margin-bottom:22px;font-size:15px;}
.spec-table{width:100%;border-collapse:collapse;margin:18px 0;}
.spec-table th,.spec-table td{border:1px solid var(--line);padding:12px 14px;font-size:14px;text-align:left;}
.spec-table th{background:var(--bg-soft);color:var(--navy);font-weight:700;width:42%;}
.spec-note{font-size:12.5px;color:var(--slate);margin-bottom:20px;}
.feature-list li{padding:8px 0 8px 26px;position:relative;font-size:15px;border-bottom:1px dashed var(--line);}
.feature-list li::before{content:"✓";position:absolute;left:0;color:var(--amber-dark);font-weight:800;}

/* ---------- 关于 ---------- */
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;}
.about-grid h2{color:var(--navy);font-size:30px;font-weight:900;margin-bottom:16px;}
.about-grid p{color:var(--slate);margin-bottom:16px;font-size:15px;}
.milestones{margin-top:20px;}
.milestones li{display:flex;gap:14px;padding:12px 0;border-bottom:1px solid var(--line);font-size:15px;}
.milestones .yr{color:var(--amber-dark);font-weight:800;white-space:nowrap;}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:44px;align-items:start;}
.contact-info h2{color:var(--navy);font-size:28px;font-weight:900;margin-bottom:14px;}
.contact-info p{color:var(--slate);margin-bottom:22px;}
.info-row{display:flex;gap:14px;margin-bottom:18px;align-items:flex-start;}
.info-row .ic{width:44px;height:44px;border-radius:10px;background:var(--navy);color:var(--amber);display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0;}
.info-row b{display:block;color:var(--navy);}
.info-row span{color:var(--slate);font-size:14px;word-break:break-word;}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);}
.form-card h3{color:var(--navy);margin-bottom:6px;}
.form-card .sub{color:var(--slate);font-size:14px;margin-bottom:22px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:6px;}
.field.full{grid-column:1/-1;}
.field label{font-size:13.5px;font-weight:600;color:var(--navy);}
.field label .req{color:#c0392b;}
.field input,.field select,.field textarea{padding:12px 14px;border:1px solid var(--line);border-radius:8px;font-size:14px;font-family:inherit;background:var(--white);transition:.2s;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--amber);box-shadow:0 0 0 3px rgba(217,164,65,.15);}
.field textarea{resize:vertical;min-height:110px;}
.form-note{font-size:12px;color:var(--slate);margin-top:8px;}

/* ---------- 页脚 ---------- */
.footer{background:var(--navy);color:#c9d2e0;padding:56px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px;}
.footer h5{color:#fff;font-size:16px;margin-bottom:16px;}
.footer a{color:#c9d2e0;display:block;margin-bottom:9px;}
.footer a:hover{color:var(--amber);}
.footer .brand-txt{color:#aeb9ca;margin-bottom:16px;line-height:1.8;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;font-size:12.5px;color:#93a0b3;}

/* ---------- 响应式 ---------- */
@media(max-width:992px){
  .prod-grid{grid-template-columns:repeat(2,1fr);}
  .market-grid{grid-template-columns:1fr;}
  .about-grid,.contact-grid,.prod-detail{grid-template-columns:1fr;gap:32px;}
  .hero h1{font-size:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media(max-width:720px){
  .nav-toggle{display:block;}
  .nav-menu{position:fixed;top:0;right:-100%;width:78%;max-width:340px;height:100vh;background:#fff;flex-direction:column;align-items:flex-start;justify-content:flex-start;padding:90px 32px;gap:24px;box-shadow:-10px 0 30px rgba(0,0,0,.12);transition:right .3s;z-index:200;}
  .nav-menu.open{right:0;}
  .nav-menu a{font-size:18px;}
  .nav-cta{margin-top:8px;}
  .nav-close{position:absolute;top:20px;right:22px;font-size:28px;background:none;border:none;color:var(--navy);cursor:pointer;}
  .hero{padding:64px 0;}
  .hero h1{font-size:30px;}
  .trust-grid{grid-template-columns:repeat(2,1fr);}
  .trust-item:nth-child(2){border-right:none;}
  .trust-item{border-bottom:1px solid var(--line);}
  .prod-grid,.why-grid,.form-grid{grid-template-columns:1fr;}
  .section{padding:52px 0;}
  .sec-head h2{font-size:27px;}
}