:root {
  --ink: #1c1e21;
  --ink-soft: #5b6169;
  --line: #e3e6ea;
  --bg: #ffffff;
  --bg-soft: #f6f7f9;
  --brand: #1f4e79;
  --brand-dark: #163a5a;
  --warn-bg: #fff8e6;
  --warn-ink: #8a6100;
  --danger: #c0392b;
  --ok: #1e7a4d;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 16px;
}
.container { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.section { padding: 40px 0; }
h1 { font-size: 30px; margin: 0 0 18px; line-height: 1.3; }
h2 { font-size: 22px; margin: 36px 0 16px; }
h3 { font-size: 17px; margin: 0 0 8px; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

/* header */
.site-header { border-bottom: 1px solid var(--line); background: #fff; position: sticky; top: 0; z-index: 20; }
.header-inner { display: flex; align-items: center; gap: 20px; min-height: 68px; flex-wrap: wrap; }
.brand { display: flex; flex-direction: column; line-height: 1.25; text-decoration: none; color: var(--ink); }
.brand-cn { font-size: 19px; font-weight: 700; letter-spacing: 1px; }
.brand-en { font-size: 11px; color: var(--ink-soft); letter-spacing: 1.4px; text-transform: uppercase; }
.site-nav { display: flex; gap: 18px; margin-inline-start: auto; align-items: center; flex-wrap: wrap; }
.site-nav a { color: var(--ink); font-size: 15px; }
.lang-switch { display: flex; gap: 8px; }
.lang-switch a { font-size: 12px; color: var(--ink-soft); padding: 3px 7px; border: 1px solid var(--line); border-radius: 4px; }
.lang-switch a.active { background: var(--brand); color: #fff; border-color: var(--brand); }
.nav-toggle { display: none; font-size: 22px; background: none; border: 1px solid var(--line); border-radius: 6px; padding: 4px 10px; cursor: pointer; }

.notice-bar { background: var(--warn-bg); color: var(--warn-ink); padding: 8px 20px; font-size: 13px; text-align: center; }

/* hero */
.hero { padding: 72px 0 40px; text-align: center; background: linear-gradient(180deg, var(--bg-soft), #fff); }
.hero h1 { font-size: 42px; margin-bottom: 12px; }
.hero-sub { font-size: 18px; color: var(--ink-soft); margin: 0 0 26px; }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.demo-note { color: var(--warn-ink); background: var(--warn-bg); border-radius: 6px; padding: 8px 12px; font-size: 13px; display: inline-block; margin-top: 22px; }

.btn { display: inline-block; padding: 11px 22px; border-radius: 6px; font-size: 15px; border: 1px solid transparent; cursor: pointer; }
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); }
.btn-ghost { border-color: var(--line); color: var(--ink); background: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-sm { padding: 3px 9px; font-size: 12px; }
.link-btn { background: none; border: none; color: var(--ink); font-size: 15px; cursor: pointer; padding: 0; }

/* cards */
.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.cat-card { display: flex; flex-direction: column; gap: 6px; padding: 20px; border: 1px solid var(--line); border-radius: 8px; color: var(--ink); }
.cat-card:hover { border-color: var(--brand); text-decoration: none; }
.cat-name { font-weight: 600; }
.cat-count { font-size: 13px; color: var(--ink-soft); }

.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.feature-card { padding: 22px; background: var(--bg-soft); border-radius: 8px; }
.feature-card p { margin: 0; color: var(--ink-soft); font-size: 15px; }

.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 16px; }
.product-card { border: 1px solid var(--line); border-radius: 8px; overflow: hidden; color: var(--ink); display: flex; flex-direction: column; }
.product-card:hover { border-color: var(--brand); text-decoration: none; }
.thumb.placeholder { background: repeating-linear-gradient(45deg, #f2f3f5, #f2f3f5 10px, #eceef1 10px, #eceef1 20px); color: var(--ink-soft); display: flex; align-items: center; justify-content: center; font-size: 13px; }
.thumb { aspect-ratio: 4/3; }
.thumb.large { aspect-ratio: 1/1; border-radius: 8px; }
.card-body { padding: 12px 14px; display: flex; flex-direction: column; gap: 5px; }
.card-body .sku { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 12px; color: var(--ink-soft); }
.card-body .name { font-weight: 600; font-size: 15px; }
.card-body .cat { font-size: 13px; color: var(--ink-soft); }
.badge.demo { display: inline-block; align-self: flex-start; background: var(--warn-bg); color: var(--warn-ink); border-radius: 4px; padding: 2px 7px; font-size: 11px; }
.badge.demo p, p.badge.demo { margin: 0 0 16px; }

/* catalog */
.search-form { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 18px; }
.search-form input, .search-form select { padding: 10px 12px; border: 1px solid var(--line); border-radius: 6px; font-size: 15px; }
.search-form input { flex: 1 1 260px; }
.result-count { color: var(--ink-soft); font-size: 14px; }
.empty { color: var(--ink-soft); padding: 30px 0; }
.lock-hint { margin-top: 28px; padding: 20px; background: var(--bg-soft); border-radius: 8px; display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }

/* product detail */
.breadcrumb { font-size: 13px; color: var(--ink-soft); }
.detail-grid { display: grid; grid-template-columns: minmax(0,1.1fr) minmax(0,1fr); gap: 34px; }
.detail-img { width: 100%; border-radius: 8px; border: 1px solid var(--line); margin-bottom: 10px; }
.spec-table { width: 100%; border-collapse: collapse; margin-bottom: 18px; }
.spec-table th, .spec-table td { text-align: start; padding: 10px 12px; border-bottom: 1px solid var(--line); font-size: 15px; }
.spec-table th { width: 34%; color: var(--ink-soft); font-weight: 500; }
.no-price { background: var(--bg-soft); padding: 12px; border-radius: 6px; font-size: 14px; }
.fine-print { font-size: 12.5px; color: var(--ink-soft); line-height: 1.7; }

/* forms */
.narrow { max-width: 760px; }
.prose p { margin: 0 0 16px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; margin: 22px 0; }
.form-grid label { display: flex; flex-direction: column; gap: 6px; font-size: 14px; color: var(--ink-soft); }
.form-grid .full { grid-column: 1 / -1; }
.form-grid input, .form-grid select, .form-grid textarea {
  padding: 10px 12px; border: 1px solid var(--line); border-radius: 6px; font-size: 15px;
  font-family: inherit; color: var(--ink); background: #fff; width: 100%;
}
.alert { padding: 12px 14px; border-radius: 6px; font-size: 14px; }
.alert.success { background: #e8f6ee; color: var(--ok); }
.alert.error { background: #fdecea; color: var(--danger); }
.channel-box { margin-top: 30px; padding: 20px; border: 1px solid var(--line); border-radius: 8px; }
.channel-box ul { padding-inline-start: 20px; margin: 10px 0; }
.pending { color: var(--warn-ink); background: var(--warn-bg); padding: 1px 7px; border-radius: 4px; font-size: 13px; }
.inline-form { display: inline-flex; gap: 6px; align-items: center; }
.inline-form.wrap { flex-wrap: wrap; margin-top: 10px; }

/* footer */
.site-footer { border-top: 1px solid var(--line); margin-top: 60px; padding: 34px 0; background: var(--bg-soft); }
.footer-contact h4 { margin: 0 0 10px; font-size: 15px; }
.footer-contact p { margin: 3px 0; font-size: 14px; }
.footer-meta { color: var(--ink-soft); font-size: 13px; margin: 6px 0 0; }
.error-page { text-align: center; padding: 70px 0; }
.error-page h1 { font-size: 56px; color: var(--ink-soft); }

/* RTL */
[dir="rtl"] body { font-family: "Segoe UI", Tahoma, Arial, "PingFang SC", sans-serif; }
[dir="rtl"] .site-nav, [dir="rtl"] .hero-actions { flex-direction: row-reverse; }
/* 注意：RTL 下 flex row 本身就是右起排列，不能再加 row-reverse，否则会再次反向 */
/* RTL 下搜索框必须显式声明方向，否则 placeholder 会溢出到控件外 */
[dir="rtl"] .search-form input, [dir="rtl"] .search-form select,
[dir="rtl"] .form-grid input, [dir="rtl"] .form-grid select, [dir="rtl"] .form-grid textarea {
  direction: rtl; text-align: right;
}
[dir="rtl"] .search-form input { text-align: right; }
[dir="rtl"] .brand { text-align: start; }

/* mobile */
@media (max-width: 860px) {
  .nav-toggle { display: block; margin-inline-start: auto; }
  .site-nav { display: none; width: 100%; flex-direction: column; align-items: flex-start; gap: 10px; padding-bottom: 12px; }
  .site-nav.open { display: flex; }
  .header-inner { padding: 10px 20px; }
  .detail-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 30px; }
  .lang-switch { order: 3; }
}
.brand-logo{display:block;width:180px;max-width:100%;height:58px;object-fit:contain;object-position:left center}.hero.hero{background:linear-gradient(90deg,rgba(20,14,10,.38),rgba(20,14,10,0)),url("/assets/images/hero.png") center center/cover no-repeat;min-height:540px;padding:100px 6%;text-align:left;box-sizing:border-box;border-radius:8px;color:#fff}.hero.hero h1{color:#fff;max-width:520px;font-size:48px}.hero.hero .hero-sub{color:#f3eee7;max-width:460px}.hero.hero .hero-actions{justify-content:flex-start}.hero.hero .btn-primary{background:#bd531b;border-color:#bd531b;color:#fff}.hero.hero .btn-ghost{background:rgba(0,0,0,.15);border-color:rgba(255,255,255,.65);color:#fff}.hero.hero .demo-note{display:inline-block;max-width:460px;margin-top:28px;background:rgba(20,14,10,.65);color:#f3eee7;font-size:12px}@media(max-width:700px){.brand-logo{width:140px;height:48px}.hero.hero{min-height:460px;padding:70px 24px;background-position:60% center;background-image:linear-gradient(90deg,rgba(20,14,10,.78),rgba(20,14,10,.25)),url("/assets/images/hero.png")}.hero.hero h1{font-size:34px}.hero.hero .hero-sub{font-size:17px}}
.site-header .brand{display:flex;align-items:center;gap:12px;text-decoration:none;flex-shrink:0}.hx-brand-mark{display:block;width:58px;height:64px;overflow:hidden;flex-shrink:0}.hx-brand-mark img{display:block;width:180px!important;max-width:none!important;height:58px!important;object-fit:contain;object-position:left center;margin-top:3px}.hx-brand-text{display:flex;flex-direction:column;gap:5px;white-space:nowrap}.hx-brand-cn{font-family:"Microsoft YaHei","PingFang SC",sans-serif;font-size:30px;font-weight:700;line-height:1.1;letter-spacing:3px;color:#252525}.hx-brand-en{font-family:Arial,sans-serif;font-size:10px;line-height:1.2;letter-spacing:1.1px;color:#656565}@media(max-width:700px){.site-header .brand{gap:8px}.hx-brand-cn{font-size:24px;letter-spacing:2px}.hx-brand-en{font-size:9px;letter-spacing:.5px}}
.site-header .hx-brand-text{display:none!important}
.site-header .header-inner{overflow:visible!important}.site-header a.brand{display:flex!important;align-items:center!important;width:330px!important;min-width:330px!important;max-width:none!important;height:90px!important;overflow:visible!important;flex:0 0 330px!important}.site-header a.brand img.hx-logo-full{display:block!important;width:330px!important;min-width:330px!important;max-width:none!important;height:88px!important;object-fit:contain!important;object-position:left center!important;clip:auto!important;clip-path:none!important;opacity:1!important;visibility:visible!important;transform:none!important}.site-header a.brand::before,.site-header a.brand::after{content:none!important}@media(max-width:700px){.site-header a.brand{width:240px!important;min-width:240px!important;flex-basis:240px!important;height:76px!important}.site-header a.brand img.hx-logo-full{width:240px!important;min-width:240px!important;height:72px!important}}
.site-header .brand .hx-brand-mark{display:block!important;width:330px!important;min-width:330px!important;height:88px!important;overflow:visible!important;flex:0 0 330px!important}.site-header .brand .hx-brand-mark img{display:block!important;width:330px!important;max-width:none!important;height:88px!important;object-fit:contain!important;object-position:left center!important;margin:0!important}.site-header .brand .hx-brand-text{display:none!important}@media(max-width:700px){.site-header a.brand{width:220px!important;min-width:220px!important;flex-basis:220px!important}.site-header .brand .hx-brand-mark{width:220px!important;min-width:220px!important;height:66px!important;flex-basis:220px!important}.site-header .brand .hx-brand-mark img{width:220px!important;height:66px!important}}
.cat-grid{grid-template-columns:repeat(3,minmax(0,1fr))!important;gap:24px!important}.cat-grid .cat-card{display:flex!important;flex-direction:column!important;padding:0!important;overflow:hidden;border-radius:10px}.cat-grid .hx-cat-cover{display:block;width:100%;aspect-ratio:4/3;object-fit:cover}.cat-grid .cat-name{display:block;margin:18px 20px 6px;font-size:20px;font-weight:700}.cat-grid .cat-count{display:block;margin:0 20px 18px}@media(max-width:900px){.cat-grid{grid-template-columns:repeat(2,minmax(0,1fr))!important}}@media(max-width:540px){.cat-grid{grid-template-columns:1fr!important}}
.site-header .hx-language{position:relative;flex-shrink:0;color:#555;font-size:15px}.site-header .hx-language summary{display:flex;align-items:center;gap:12px;cursor:pointer;padding:10px 12px;list-style:none;white-space:nowrap}.site-header .hx-language summary::-webkit-details-marker{display:none}.site-header .hx-language summary::after{content:"";border-left:5px solid transparent;border-right:5px solid transparent;border-top:5px solid #777}.site-header .hx-language[open] summary::after{transform:rotate(180deg)}.site-header .hx-language-menu{position:absolute;inset-inline-end:0;top:calc(100% + 8px);width:210px;padding:8px 0;background:#fff;border:1px solid #e2e5e9;border-radius:8px;box-shadow:0 6px 18px #0002;z-index:1000;max-height:70vh;overflow-y:auto}.site-header .hx-language-menu a{display:flex;justify-content:space-between;align-items:center;gap:16px;margin:0;padding:12px 18px;border:0;border-radius:0;background:#fff;color:#536072;text-decoration:none;font-size:15px;line-height:1.4}.site-header .hx-language-menu a:hover,.site-header .hx-language-menu a:focus-visible{background:#f4f6f8}.site-header .hx-language-check{color:#2879ed}.site-header,.site-header .header-inner{overflow:visible}