/* HONGOU BUILDING — global inquiry site. Light theme, B2B export style. */
:root{
  --navy:#12314e; --navy-2:#1c4470; --accent:#e8762c; --accent-dark:#cf6420;
  --bg:#f7f8fa; --card:#ffffff; --line:#e3e7ec; --text:#24313f; --muted:#6b7a89;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Segoe UI",Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg);line-height:1.6}
img{max-width:100%;display:block}
a{color:var(--navy);text-decoration:none}
.container{max-width:1140px;margin:0 auto;padding:0 20px}

/* header */
.site-header{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:10px}
.logo-mark{width:40px;height:40px;background:var(--navy);color:#fff;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700}
.logo-text{font-size:18px;letter-spacing:.5px;color:var(--navy)}
.logo-text small{display:block;font-size:10px;color:var(--muted);letter-spacing:2px;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:22px;font-size:15px}
.main-nav a:hover{color:var(--accent)}
.nav-drop{position:relative}
.drop-menu{display:none;position:absolute;top:100%;left:-10px;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 24px rgba(18,49,78,.12);min-width:200px;padding:6px 0;flex-direction:column}
.drop-menu a{padding:9px 16px;display:block}
.nav-drop:hover .drop-menu{display:flex}
.lang-note{font-size:12px;color:var(--muted)}
.lang-note em{font-style:normal;opacity:.7}
.nav-toggle{display:none;background:none;border:0;font-size:24px;cursor:pointer;color:var(--navy)}

/* buttons */
.btn{display:inline-block;padding:12px 26px;border-radius:6px;font-weight:600;transition:.2s}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-dark)}
.btn-ghost{border:2px solid var(--navy);color:var(--navy)}
.btn-ghost:hover{background:var(--navy);color:#fff}
.btn-sm{padding:8px 18px;font-size:14px}
.btn-lg{padding:15px 36px;font-size:17px}

/* hero */
.hero{background:linear-gradient(135deg,#0f2a44 0%,#1c4470 60%,#27568a 100%);color:#fff;padding:70px 0}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero h1{font-size:38px;line-height:1.25;margin-bottom:18px}
.lead{font-size:17px;opacity:.92;margin-bottom:26px;max-width:560px}
.hero-cta{display:flex;gap:14px;margin-bottom:24px}
.hero-points{list-style:none;font-size:14px;opacity:.9}
.hero-points li{margin-bottom:6px}
.hero-visual img{border-radius:12px;box-shadow:0 16px 40px rgba(0,0,0,.28)}

/* trust bar */
.trustbar{background:#fff;border-bottom:1px solid var(--line)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:22px 20px;text-align:center}
.trust-grid strong{display:block;color:var(--navy);font-size:16px}
.trust-grid span{font-size:13px;color:var(--muted)}

/* sections */
.section{padding:64px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-title{font-size:28px;color:var(--navy);text-align:center;margin-bottom:8px}
.section-sub{text-align:center;color:var(--muted);max-width:640px;margin:0 auto 40px}

/* category cards */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.cat-card{background:var(--card);border:1px solid var(--line);border-radius:10px;overflow:hidden;transition:.2s;display:flex;flex-direction:column}
.cat-card:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(18,49,78,.12)}
.cat-card img{height:150px;object-fit:cover;background:#eef1f5}
.cat-card h3{padding:14px 18px 4px;color:var(--navy)}
.cat-card p{padding:0 18px;font-size:14px;color:var(--muted);flex:1}
.cat-link{display:inline-block;padding:12px 18px;font-size:14px;color:var(--accent);font-weight:600}

/* why grid */
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.why-item h4{color:var(--navy);margin-bottom:8px;font-size:17px}
.why-item p{font-size:14px;color:var(--muted)}

/* agent band */
.agent-band{background:var(--navy);color:#fff;padding:52px 0}
.agent-grid{display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.agent-band h2{margin-bottom:8px}
.agent-band p{opacity:.85;max-width:620px}

/* cta */
.cta-box{background:#fff;border:1px solid var(--line);border-radius:12px;text-align:center;padding:48px 24px}
.cta-box h2{color:var(--navy);margin-bottom:10px}
.cta-box p{color:var(--muted);margin-bottom:24px}

/* page header (inner pages) */
.page-head{background:linear-gradient(135deg,#0f2a44,#1c4470);color:#fff;padding:46px 0}
.page-head h1{font-size:30px}
.page-head p{opacity:.88;max-width:720px}

/* product cards */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:34px}
.prod-card{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;display:flex;flex-direction:column}
.prod-card img{height:160px;object-fit:cover;background:#eef1f5}
.prod-body{padding:18px;flex:1;display:flex;flex-direction:column}
.prod-card h3{color:var(--navy);font-size:17px;margin-bottom:6px}
.spec-list{list-style:none;font-size:13.5px;color:var(--muted);margin-bottom:14px}
.spec-list li{padding:3px 0;border-bottom:1px dashed var(--line)}
.spec-list b{color:var(--text)}
.prod-foot{margin-top:auto;display:flex;justify-content:space-between;align-items:center}
.prod-foot .moq{font-size:13px;color:var(--muted)}
.note-box{background:#fff8f2;border:1px solid #f2d9c2;border-radius:8px;padding:16px 20px;font-size:14px;margin-top:34px;color:#7a4a1e}

/* about */
.about-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:44px;margin-top:34px}
.about-grid h3{color:var(--navy);margin:18px 0 8px}
.about-grid p{font-size:15px;color:var(--muted);margin-bottom:10px}
.fact-box{background:#fff;border:1px solid var(--line);border-radius:10px;padding:24px}
.fact-box h4{color:var(--navy);margin-bottom:12px}
.fact-box ul{list-style:none;font-size:14px;color:var(--muted)}
.fact-box li{padding:7px 0;border-bottom:1px dashed var(--line)}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;margin-top:34px}
.form-card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:28px}
.form-card label{display:block;font-size:14px;font-weight:600;color:var(--navy);margin:14px 0 5px}
.form-card input,.form-card select,.form-card textarea{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:6px;font-size:14px;font-family:inherit;background:#fbfcfd}
.form-card input:focus,.form-card select:focus,.form-card textarea:focus{outline:2px solid var(--accent);border-color:transparent}
.form-card .btn{width:100%;margin-top:20px}
.contact-side h3{color:var(--navy);margin-bottom:10px}
.contact-side p{color:var(--muted);font-size:15px;margin-bottom:14px}
.contact-side .direct{background:#fff;border:1px solid var(--line);border-radius:10px;padding:20px;margin-top:8px;font-size:14.5px}
.contact-side .direct a{color:var(--accent);font-weight:600}
.form-ok{display:none;background:#eaf7ee;border:1px solid #bfe3cb;color:#22663a;border-radius:8px;padding:14px;margin-top:16px;font-size:14px}

/* footer */
.site-footer{background:#0e2438;color:#c6d2de;padding:48px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:36px;padding-bottom:34px}
.site-footer h4{color:#fff;margin-bottom:12px;font-size:16px}
.site-footer a{display:block;color:#c6d2de;font-size:14px;padding:3px 0}
.site-footer a:hover{color:var(--accent)}
.site-footer p{font-size:14px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:16px 20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:12.5px;color:#8ba0b4}

/* responsive */
@media(max-width:960px){
  .hero-grid,.about-grid,.contact-grid{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .why-grid{grid-template-columns:repeat(2,1fr)}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .main-nav{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:flex-start;padding:18px 22px;gap:14px}
  .main-nav.open{display:flex}
  .drop-menu{position:static;display:flex;box-shadow:none;border:0;padding:0 0 0 14px}
  .nav-toggle{display:block}
  .footer-grid{grid-template-columns:1fr}
}
@media(max-width:560px){
  .cat-grid,.why-grid,.prod-grid,.trust-grid{grid-template-columns:1fr}
  .hero h1{font-size:28px}
}