:root{--navy:#0b2545;--navy-2:#13315c;--teal:#0f9d9a;--teal-d:#0b7f7c;--teal-l:#e6f6f5;--ink:#1d2939;--muted:#5b6b7f;--line:#dde3ea;--bg-alt:#f4f7fa;--radius:10px;--shadow:0 2px 10px rgba(11,37,69,.07)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);line-height:1.6;background:#fff}
a{color:var(--teal-d)}a:hover{color:var(--navy)}
h1,h2,h3,h4{color:var(--navy);line-height:1.25;margin:0 0 .6em}
p{margin:0 0 1em}
.container{max-width:1180px;margin:0 auto;padding:0 22px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.muted{color:var(--muted)}.center{text-align:center}
/* header */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.header-inner{display:flex;align-items:center;gap:28px;height:70px}
.wordmark{display:flex;flex-direction:column;text-decoration:none;line-height:1}
.wm-main{font-weight:800;font-size:26px;letter-spacing:.14em;color:var(--navy)}
.wm-main::after{content:"";display:inline-block;width:8px;height:8px;background:var(--teal);border-radius:50%;margin-left:4px;vertical-align:top}
.wm-sub{font-size:10.5px;letter-spacing:.42em;color:var(--teal-d);font-weight:600;margin-top:3px}
.wordmark.light .wm-main{color:#fff}.wordmark.light .wm-sub{color:#7fd6d3}
nav{flex:1}
.nav{list-style:none;display:flex;gap:6px;margin:0;padding:0}
.nav a{display:block;padding:8px 12px;text-decoration:none;color:var(--ink);font-weight:500;border-radius:6px;font-size:15px}
.nav a:hover{background:var(--bg-alt);color:var(--navy)}
.nav a.active{color:var(--teal-d);box-shadow:inset 0 -2px 0 var(--teal)}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:6px;font-size:22px;padding:2px 10px;cursor:pointer;color:var(--navy)}
/* buttons */
.btn{display:inline-block;padding:12px 22px;border-radius:7px;font-weight:600;text-decoration:none;border:2px solid transparent;cursor:pointer;font-size:15px;transition:.15s}
.btn-accent{background:var(--teal);color:#fff}.btn-accent:hover{background:var(--teal-d);color:#fff}
.btn-primary{background:var(--navy);color:#fff}.btn-primary:hover{background:var(--navy-2);color:#fff}
.btn-ghost{border-color:rgba(255,255,255,.6);color:#fff}.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff}
.btn-sm{padding:8px 16px;font-size:14px}.btn-xs{padding:5px 11px;font-size:13px;white-space:nowrap}
.btn-row{display:flex;gap:12px;flex-wrap:wrap}
/* hero */
.hero{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 60%,#145e6e 100%);color:#e8eef5;padding:84px 0}
.hero h1{color:#fff;font-size:42px;margin-bottom:18px}
.hero .lead{font-size:18px;color:#cfdbe8;max-width:620px}
.hero-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:48px;align-items:center}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#7fd6d3;margin-bottom:14px}
.section .eyebrow{color:var(--teal-d)}
.hero-card{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);border-radius:14px;padding:28px}
.hero-card h3{color:#fff}
.hero-card-foot{margin-top:18px;padding-top:14px;border-top:1px solid rgba(255,255,255,.18);font-size:14px;color:#9fe3e0}
.check{list-style:none;padding:0;margin:0}
.check li{padding:8px 0 8px 28px;position:relative}
.check li::before{content:"\2713";position:absolute;left:0;color:#5fd3cf;font-weight:700}
.page-hero{background:linear-gradient(135deg,var(--navy),var(--navy-2));color:#cfdbe8;padding:54px 0 46px}
.page-hero h1{color:#fff;font-size:36px;margin-bottom:8px}.page-hero p{margin:0;font-size:17px}
/* sections */
.section{padding:70px 0}.section.alt{background:var(--bg-alt)}
.section-title{text-align:center;font-size:30px}
.section-sub{text-align:center;color:var(--muted);max-width:720px;margin:0 auto 30px}
.cards{display:grid;gap:22px}
.cards-3{grid-template-columns:repeat(3,1fr)}.cards-4{grid-template-columns:repeat(4,1fr)}
.section-title+.cards{margin-top:30px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.card h3{font-size:18px}.card p{color:var(--muted);margin:0}
.icon{width:46px;height:46px;border-radius:10px;background:var(--teal-l);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:14px}
.brand-strip{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin:10px 0 26px}
.brand-strip span{background:#fff;border:1px solid var(--line);border-radius:8px;padding:12px 22px;font-weight:700;color:var(--navy);letter-spacing:.02em}
.link-arrow{font-weight:600;text-decoration:none}
.split{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:start}
.stats{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.stats div{background:var(--bg-alt);border-left:4px solid var(--teal);border-radius:8px;padding:20px}
.stat-num{display:block;font-size:30px;font-weight:800;color:var(--navy)}
.stat-label{color:var(--muted);font-size:14px}
.cta-band{background:var(--teal);color:#eafffe;padding:46px 0}
.cta-band h2{color:#fff;margin-bottom:6px}.cta-band p{margin:0}
.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.cta-band .btn-accent{background:var(--navy)}.cta-band .btn-accent:hover{background:var(--navy-2)}
/* products */
.feature-core{display:grid;grid-template-columns:1fr 2fr;gap:36px;align-items:center;background:linear-gradient(135deg,var(--teal-l),#fff);border:1px solid #c6ebe9;border-radius:14px;padding:34px}
.cat h3{border-bottom:2px solid var(--teal-l);padding-bottom:10px}
.cat p{margin-bottom:14px}
.tags{display:flex;flex-wrap:wrap;gap:6px}
.tag{background:var(--navy);color:#fff;font-size:12.5px;padding:4px 10px;border-radius:20px;font-weight:600}
.brand-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;margin-top:28px}
.brand-card{border:1px solid var(--line);border-radius:var(--radius);padding:20px;display:flex;flex-direction:column;gap:4px;position:relative;background:#fff}
.brand-card.core{border-color:var(--teal);box-shadow:0 0 0 2px var(--teal-l)}
.brand-name{font-weight:800;font-size:19px;color:var(--navy)}
.brand-cats{color:var(--muted);font-size:14px}
.badge{display:inline-block;background:var(--teal);color:#fff;font-size:11px;font-weight:700;padding:2px 8px;border-radius:4px;text-transform:uppercase;letter-spacing:.04em;width:max-content;margin-top:6px}
.badge.warn{background:#c77700;margin:0 0 0 6px;vertical-align:middle;text-transform:none}
.note{margin-top:26px;color:var(--muted)}
/* stock */
.stock-tools{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:18px}
.stock-tools .search{flex:1;min-width:240px}
.stock-tools input,.stock-tools select{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:7px;font-size:15px;font-family:inherit}
.stock-tools input:focus,.stock-tools select:focus,.rfq-form input:focus,.rfq-form textarea:focus,.rfq-form select:focus{outline:2px solid var(--teal);border-color:var(--teal)}
.count{color:var(--muted);font-size:14px;white-space:nowrap}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius)}
table.stock{width:100%;border-collapse:collapse;font-size:14.5px}
.stock th{background:var(--navy);color:#fff;text-align:left;padding:11px 14px;font-weight:600;position:sticky;top:0;white-space:nowrap}
.stock td{padding:9px 14px;border-top:1px solid var(--line);vertical-align:middle}
.stock tbody tr:nth-child(even){background:#f8fafc}
.stock tbody tr:hover{background:var(--teal-l)}
.stock .num{text-align:right;font-variant-numeric:tabular-nums}
.stock .pn{font-family:Consolas,"SFMono-Regular",Menlo,monospace;font-weight:600;color:var(--navy)}
.rfq{color:var(--teal-d);font-weight:700}
.no-results{padding:24px;text-align:center;margin:0}
.stock-notes{margin-top:22px;color:var(--muted);font-size:14.5px}
/* quality */
.steps{list-style:none;padding:0;margin:30px 0 0;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.steps li{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.steps span{display:inline-flex;width:36px;height:36px;border-radius:50%;background:var(--teal);color:#fff;font-weight:700;align-items:center;justify-content:center;margin-bottom:12px}
.steps p{color:var(--muted);margin:0}
/* about */
.info-panel{background:var(--bg-alt);border-radius:14px;padding:28px;border-top:4px solid var(--teal)}
.info-panel dl{margin:0;display:grid;grid-template-columns:150px 1fr;gap:12px 16px;font-size:14.5px}
.info-panel dt{font-weight:700;color:var(--navy)}.info-panel dd{margin:0}
.info-panel small{font-weight:400;color:var(--muted)}
/* contact */
.contact-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:40px;align-items:start}
.rfq-form{background:#fff;border:1px solid var(--line);border-radius:14px;padding:30px;box-shadow:var(--shadow)}
.rfq-form label{display:block;font-weight:600;font-size:14px;color:var(--navy);margin-bottom:16px}
.rfq-form small{font-weight:400;color:var(--muted)}
.rfq-form input,.rfq-form textarea,.rfq-form select{display:block;width:100%;margin-top:6px;padding:10px 12px;border:1px solid var(--line);border-radius:7px;font:inherit;font-weight:400;color:var(--ink)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-error{color:#b42318;font-weight:600}
.contact-card{background:var(--navy);color:#cfdbe8;border-radius:14px;padding:30px}
.contact-card h3{color:#fff;margin-bottom:0}.contact-card strong{color:#fff}
.contact-card a{color:#7fd6d3}
/* footer */
.site-footer{background:#08182e;color:#aebbd0;padding:54px 0 0;font-size:14.5px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:12px}
.site-footer a{color:#7fd6d3;text-decoration:none}.site-footer a:hover{color:#fff}
.site-footer .muted{color:#8394ad}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.3fr .8fr;gap:32px}
.footer-grid .wordmark{margin-bottom:14px}
.footer-links{list-style:none;padding:0;margin:0}.footer-links li{margin-bottom:4px}
.footer-bottom{border-top:1px solid #1c2f4b;margin-top:34px;padding:18px 22px;display:flex;flex-direction:column;gap:4px;font-size:13px;color:#7d8ea8}

/* packaging gallery */
.pack-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:30px}
.pack-card{margin:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column}
.pack-card a{display:block;background:#0a1628;aspect-ratio:4/3;overflow:hidden}
.pack-card img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .2s}
.pack-card a:hover img{transform:scale(1.03)}
.pack-card figcaption{padding:14px 16px;display:flex;flex-direction:column;gap:4px}
.pack-card .pn{font-family:Consolas,"SFMono-Regular",Menlo,monospace;font-weight:700;color:var(--navy);font-size:14.5px}
.pack-card .meta{color:var(--muted);font-size:13px}
@media (max-width:980px){.pack-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:760px){.pack-grid{grid-template-columns:1fr}}
/* responsive */
@media (max-width:980px){
 .cards-4{grid-template-columns:repeat(2,1fr)}.cards-3{grid-template-columns:repeat(2,1fr)}
 .hero-grid,.split,.feature-core,.contact-grid{grid-template-columns:1fr}
 .steps{grid-template-columns:repeat(2,1fr)}
 .footer-grid{grid-template-columns:1fr 1fr}
 .header-cta{display:none}
}
@media (max-width:760px){
 .nav-toggle{display:block;margin-left:auto}
 nav{position:absolute;top:70px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);display:none}
 nav.open{display:block}
 .nav{flex-direction:column;padding:10px 16px}
 .hero{padding:56px 0}.hero h1{font-size:30px}
 .cards-4,.cards-3,.steps,.form-row,.footer-grid{grid-template-columns:1fr}
 .section{padding:50px 0}
 .info-panel dl{grid-template-columns:1fr}
}