/* ============================================================
   Enrich Luggage — 全站共享设计系统 style.css
   B2B 箱包站 · 深蓝 + 黄铜视觉 · 手搓静态站
   引用方式：<link rel="stylesheet" href="style.css">
   ============================================================ */
:root{
  --ink:#10202e;         /* 主深色：墨蓝 */
  --ink-2:#1b3347;       /* 深色次级 */
  --paper:#f6f5f1;       /* 浅色纸面 */
  --paper-2:#efece4;     /* 浅色次级 */
  --brass:#c9962e;       /* 强调：黄铜（箱包五金感） */
  --brass-2:#a9791f;
  --text:#26343f;
  --muted:#6b7885;
  --line:#e2ddd2;
  --white:#ffffff;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:"Source Sans 3",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  color:var(--text);background:var(--paper);line-height:1.6;font-size:16px;
}
h1,h2,h3{font-family:Oswald,"Arial Narrow",sans-serif;color:var(--ink);line-height:1.12;font-weight:600;letter-spacing:.2px;}
button{font-family:inherit;}
.wrap{width:100%;max-width:1160px;margin:0 auto;padding:0 20px;}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;}

/* ===== 顶部工具条 ===== */
.topbar{background:var(--ink);color:#c9d3dc;font-size:13px;}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;gap:12px;padding-top:7px;padding-bottom:7px;flex-wrap:wrap;}
.topbar a{color:#e7c98f;}
.topbar .left{display:flex;gap:16px;flex-wrap:wrap;}

/* ===== 头部导航 ===== */
header.nav{background:var(--paper);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:14px;padding-bottom:14px;}
.logo{display:flex;align-items:center;gap:10px;font-family:Oswald,sans-serif;font-size:22px;font-weight:600;color:var(--ink);letter-spacing:.5px;min-height:44px;}
.logo svg{width:30px;height:30px;}
.logo .accent{color:var(--brass);}
nav.menu{display:flex;align-items:center;gap:26px;}
nav.menu a{font-weight:600;font-size:15px;color:var(--text);padding:6px 0;border-bottom:2px solid transparent;}
nav.menu a:hover,nav.menu a.active{border-bottom-color:var(--brass);color:var(--ink);}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;background:var(--brass);color:#1a1408;font-weight:600;font-size:15px;padding:12px 24px;border-radius:4px;border:1px solid var(--brass);cursor:pointer;transition:background .15s,border-color .15s;}
.btn:hover{background:var(--brass-2);border-color:var(--brass-2);}
.btn.ghost{background:transparent;color:var(--white);border-color:rgba(255,255,255,.55);}
.btn.ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;}
.nav-cta{display:inline-flex;gap:10px;align-items:center;}
.burger{display:none;background:none;border:none;cursor:pointer;width:44px;height:44px;flex-direction:column;align-items:center;justify-content:center;gap:5px;}
.burger span{display:block;width:24px;height:2px;background:var(--ink);}

/* ===== Hero（首页大图） ===== */
.hero{background:linear-gradient(120deg,var(--ink) 0%,var(--ink-2) 100%);color:#e7edf2;}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center;padding-top:64px;padding-bottom:64px;}
.hero .eyebrow{font-size:13px;font-weight:600;letter-spacing:2px;text-transform:uppercase;color:var(--brass);margin-bottom:14px;}
.hero h1{color:var(--white);font-size:46px;font-weight:600;margin-bottom:18px;}
.hero p.lead{font-size:18px;color:#c7d2dc;max-width:30em;margin-bottom:26px;}
.hero .ctas{display:flex;gap:14px;flex-wrap:wrap;}
.hero figure{position:relative;}
.hero figure img{width:100%;height:380px;object-fit:cover;border-radius:8px;box-shadow:0 24px 50px rgba(0,0,0,.35);}
.hero .badge{position:absolute;left:16px;bottom:16px;background:rgba(16,32,46,.9);color:#f2d9a4;font-size:13px;padding:8px 14px;border-radius:4px;border:1px solid rgba(255,255,255,.2);}

/* ===== 内页 Hero（骨架页通用标题区） ===== */
.page-hero{background:linear-gradient(120deg,var(--ink) 0%,var(--ink-2) 100%);color:#e7edf2;}
.page-hero .wrap{padding-top:48px;padding-bottom:48px;}
.page-hero .breadcrumb{font-size:13px;color:#9fb0bf;margin-bottom:12px;}
.page-hero .breadcrumb a{color:#c9d3dc;}
.page-hero .breadcrumb a:hover{color:#f2d9a4;}
.page-hero .breadcrumb .sep{margin:0 7px;color:#6f8191;}
.page-hero .breadcrumb .cur{color:#f2d9a4;}
.page-hero h1{color:#fff;font-size:40px;margin-bottom:10px;}
.page-hero p{color:#c7d2dc;max-width:34em;}

/* ===== 数据条 ===== */
.stats{background:#0b1823;border-top:1px solid rgba(255,255,255,.08);}
.stats .wrap{display:flex;justify-content:space-between;gap:12px;padding-top:20px;padding-bottom:20px;flex-wrap:wrap;}
.stat{flex:1 1 150px;text-align:center;}
.stat .num{font-family:Oswald,sans-serif;font-size:30px;color:var(--brass);font-weight:600;}
.stat .lab{font-size:13px;color:#9fb0bf;margin-top:2px;}
.stats-note{width:100%;text-align:center;font-size:12px;color:#6f8191;margin-top:2px;}

/* ===== 通用区块 ===== */
section{padding:64px 0;}
.sec-head{max-width:640px;margin-bottom:34px;}
.sec-head .eyebrow{font-size:13px;font-weight:600;letter-spacing:2px;text-transform:uppercase;color:var(--brass-2);margin-bottom:10px;}
.sec-head h2{font-size:34px;}
.sec-head p{color:var(--muted);margin-top:10px;}
.band{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

/* ===== 品类入口卡片 ===== */
.cats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.cat{background:var(--white);border:1px solid var(--line);border-radius:8px;overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .15s,transform .15s;}
.cat:hover{box-shadow:0 12px 28px rgba(16,32,46,.12);transform:translateY(-3px);}
.cat figure{height:190px;overflow:hidden;background:var(--paper-2);}
.cat figure img{width:100%;height:100%;object-fit:cover;transition:transform .3s;}
.cat:hover figure img{transform:scale(1.05);}
.cat .body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:6px;flex:1;}
.cat h3{font-size:20px;}
.cat p{font-size:14px;color:var(--muted);flex:1;}
.cat .link{font-weight:600;font-size:14px;color:var(--brass-2);}
.cat .link:hover{color:var(--ink);}

/* ===== 产品网格 / 产品卡片（骨架通用） ===== */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.pcard{background:var(--white);border:1px solid var(--line);border-radius:8px;overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .15s,transform .15s;cursor:pointer;}
.pcard:hover{box-shadow:0 12px 28px rgba(16,32,46,.12);transform:translateY(-3px);}
.pcard figure{height:220px;overflow:hidden;background:var(--paper-2);}
.pcard figure img{width:100%;height:100%;object-fit:cover;transition:transform .3s;}
.pcard:hover figure img{transform:scale(1.05);}
.pcard .body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:6px;flex:1;}
.pcard .sku{font-size:12px;font-weight:600;letter-spacing:1px;text-transform:uppercase;color:var(--brass-2);}
.pcard h3{font-size:19px;}
.pcard p{font-size:14px;color:var(--muted);flex:1;}
.pcard .link{font-weight:600;font-size:14px;color:var(--brass-2);}

/* 占位图块：骨架阶段未填产品图时使用 */
.ph{height:220px;background:repeating-linear-gradient(45deg,var(--paper-2) 0 12px,#e9e3d6 12px 24px);display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--muted);text-align:center;padding:10px;line-height:1.5;}

/* ===== 工厂/优势（对勾列表） ===== */
.why{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.why .wrap{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;}
.why figure img{width:100%;height:420px;object-fit:cover;border-radius:8px;}
.why ul{list-style:none;margin-top:4px;}
.why li{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px solid var(--line);}
.why li:last-child{border-bottom:none;}
.why li svg{flex:none;width:22px;height:22px;margin-top:2px;}
.why li b{display:block;font-size:17px;color:var(--ink);}
.why li span{font-size:14.5px;color:var(--muted);}

/* ===== OEM 流程步骤 ===== */
.oem{background:var(--paper);}
.steps{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.step{border:1px solid var(--line);background:var(--white);border-radius:8px;padding:18px 20px;display:flex;gap:16px;align-items:flex-start;}
.step .no{font-family:Oswald,sans-serif;font-size:34px;color:var(--brass);line-height:1;flex:none;width:44px;}
.step h3{font-size:19px;margin-bottom:4px;}
.step p{font-size:14px;color:var(--muted);}

/* ===== 规格表（单品页） ===== */
.table-scroll{overflow-x:auto;}
.spec-table{width:100%;border-collapse:collapse;margin-top:6px;table-layout:fixed;}
.spec-table th,.spec-table td{border:1px solid var(--line);padding:11px 14px;text-align:left;font-size:14px;vertical-align:top;}
.spec-table th{background:var(--paper-2);font-weight:600;color:var(--ink);width:34%;}
.spec-table td{color:var(--text);}

/* ===== FAQ ===== */
.faq{max-width:820px;margin:0 auto;}
.faq details{border:1px solid var(--line);background:var(--white);border-radius:8px;margin-bottom:12px;overflow:hidden;}
.faq summary{cursor:pointer;padding:16px 20px;font-weight:600;font-size:16px;color:var(--ink);list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:'+';font-size:22px;line-height:1;color:var(--brass);}
.faq details[open] summary::after{content:'–';}
.faq .a{padding:0 20px 16px;font-size:15px;color:var(--muted);}

/* ===== 博客卡片 ===== */
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.post{background:var(--white);border:1px solid var(--line);border-radius:8px;overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .15s,transform .15s;cursor:pointer;}
.post:hover{box-shadow:0 12px 28px rgba(16,32,46,.12);transform:translateY(-3px);}
.post .body{padding:18px;display:flex;flex-direction:column;gap:8px;flex:1;}
.post .date{font-size:12px;color:var(--muted);letter-spacing:.5px;}
.post h3{font-size:18px;}
.post p{font-size:14px;color:var(--muted);flex:1;}
.post .link{font-weight:600;font-size:14px;color:var(--brass-2);}

/* ===== CTA 带 ===== */
.cta-band{background:linear-gradient(120deg,var(--brass) 0%,#b07e23 100%);color:#1a1408;text-align:center;}
.cta-band .wrap{padding-top:52px;padding-bottom:52px;}
.cta-band h2{font-size:32px;color:#1a1408;margin-bottom:10px;}
.cta-band p{font-size:17px;color:#3c2c0e;max-width:34em;margin:0 auto 22px;}
.btn.dark{background:var(--ink);color:#fff;border-color:var(--ink);}
.btn.dark:hover{background:#0b1823;}

/* ===== 询盘表单 ===== */
.contact .wrap{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;}
.contact h2{font-size:32px;margin-bottom:12px;}
.contact .meta{color:var(--muted);font-size:15px;margin-top:16px;display:flex;flex-direction:column;gap:8px;}
form.f{background:var(--white);border:1px solid var(--line);border-radius:8px;padding:22px;display:flex;flex-direction:column;gap:14px;}
.f label{font-size:14px;font-weight:600;color:var(--ink);}
.f input,.f select,.f textarea{width:100%;border:1px solid var(--line);border-radius:4px;padding:11px 12px;font-size:15px;font-family:inherit;background:#fff;color:var(--text);}
.f input:focus,.f textarea:focus{outline:none;border-color:var(--brass);}
.f textarea{resize:vertical;min-height:96px;}
.f .row{display:flex;gap:12px;}
.f .row > div{flex:1;}

/* ===== Footer ===== */
footer{background:var(--ink);color:#b9c6d1;font-size:14px;}
.foot{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;padding-top:44px;padding-bottom:36px;}
footer h4{font-family:Oswald,sans-serif;color:#fff;font-size:16px;margin-bottom:12px;letter-spacing:.5px;}
footer a{color:#b9c6d1;}
footer a:hover{color:#f2d9a4;}
footer li{list-style:none;margin-bottom:8px;}
footer .bottom{border-top:1px solid rgba(255,255,255,.12);padding:16px 0;font-size:13px;color:#7f91a1;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;}

/* ===== Toast ===== */
#toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;padding:12px 20px;border-radius:6px;font-size:14px;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:100;box-shadow:0 10px 30px rgba(0,0,0,.25);}
#toast.show{opacity:1;transform:translateX(-50%) translateY(0);}

/* ===== 移动端 ===== */
@media (max-width:900px){
  .hero .wrap{grid-template-columns:1fr;padding-top:44px;padding-bottom:44px;}
  .hero h1{font-size:36px;}
  .hero figure img{height:280px;}
  .cats{grid-template-columns:repeat(2,1fr);}
  .grid,.grid-4,.posts{grid-template-columns:repeat(2,1fr);}
  .why .wrap{grid-template-columns:1fr;}
  .contact .wrap{grid-template-columns:1fr;}
  .foot{grid-template-columns:1fr 1fr;}
}
@media (max-width:620px){
  .cats,.grid,.grid-4,.posts{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .foot{grid-template-columns:1fr;}
  .topbar .right{display:none;}
  nav.menu{display:none;position:absolute;top:100%;left:0;right:0;background:var(--white);border-bottom:1px solid var(--line);flex-direction:column;align-items:flex-start;padding:14px 20px;gap:6px;}
  nav.menu.open{display:flex;}
  nav.menu a{padding:10px 0;font-size:16px;}
  .nav-cta{margin-left:auto;}
  .burger{display:flex;}
  .f input,.f select,.f textarea{font-size:16px;}
  .page-hero h1{font-size:32px;}
  .sec-head h2{font-size:28px;}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto;}*{transition:none!important;}}