:root {
  --ink: #0f1f33;
  --muted: #607080;
  --blue: #0b2f5b;
  --blue-2: #164f88;
  --green: #2c9c73;
  --amber: #d29a2b;
  --line: #d8e0e8;
  --surface: #f4f7fa;
  --white: #fff;
  --max: 1180px;
}
* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); font-family: Inter, Arial, "PingFang SC", "Microsoft YaHei", sans-serif; line-height: 1.55; background: var(--white); }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.skip-link { position: absolute; left: -999px; top: 8px; background: var(--blue); color: #fff; padding: 8px 12px; z-index: 20; }
.skip-link:focus { left: 8px; }
.site-header { position: sticky; top: 0; z-index: 10; display: grid; grid-template-columns: auto 1fr auto auto; gap: 18px; align-items: center; min-height: 72px; padding: 0 28px; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px); }
.brand { display: inline-flex; align-items: center; gap: 10px; min-width: 220px; }
.brand-mark { display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 8px; background: var(--blue); color: #fff; font-weight: 800; }
.brand small { display: block; color: var(--muted); font-size: 12px; }
.primary-nav { display: flex; align-items: center; gap: 16px; font-size: 14px; }
.primary-nav a { color: #20354a; }
.primary-nav a:hover, .text-link:hover { color: var(--blue-2); }
.language-switcher { display: flex; gap: 6px; font-size: 12px; }
.language-switcher a { padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; color: var(--muted); }
.language-switcher .active { background: var(--blue); border-color: var(--blue); color: #fff; }
.quote-btn, .primary-btn, .ghost-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 10px 16px; border-radius: 8px; font-weight: 700; }
.quote-btn, .primary-btn { background: var(--green); color: #fff; border: 1px solid var(--green); }
.ghost-btn { color: #fff; border: 1px solid rgba(255,255,255,.72); }
.ghost-btn.dark { color: var(--blue); border-color: var(--blue); }
.nav-toggle { display: inline-flex; border: 1px solid var(--line); background: #fff; border-radius: 8px; padding: 8px 10px; color: var(--ink); }
.hero { min-height: 74vh; display: flex; align-items: center; background-size: cover; background-position: center; color: #fff; }
.hero-content { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; padding: 64px 0; max-width: 780px; margin-left: max(20px, calc((100vw - var(--max)) / 2)); }
.hero h1 { margin: 0 0 18px; font-size: clamp(38px, 6vw, 72px); line-height: 1.03; letter-spacing: 0; max-width: 900px; }
.hero p { max-width: 720px; font-size: 18px; color: rgba(255,255,255,.9); }
.kicker, .eyebrow { margin: 0 0 10px; color: var(--green); font-size: 13px; font-weight: 800; text-transform: uppercase; letter-spacing: 0; }
.hero .kicker { color: #b9e8d5; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.content-band, .intro-strip { padding: 72px 0; }
.content-band.light, .intro-strip { background: var(--surface); }
.section-heading { max-width: 780px; margin-bottom: 28px; }
.section-heading h1, .section-heading h2 { margin: 0 0 10px; font-size: clamp(30px, 4vw, 48px); line-height: 1.12; letter-spacing: 0; }
.section-heading p { color: var(--muted); }
.intro-grid, .two-col { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, .9fr); gap: 48px; align-items: start; }
.stats-row { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
.stats-row.wide { grid-template-columns: repeat(4, minmax(0,1fr)); }
.stats-row div { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 20px; min-height: 104px; }
.stats-row strong { display: block; color: var(--blue); font-size: 26px; }
.stats-row span { color: var(--muted); }
.product-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.product-grid.small { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.product-grid-three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.product-card { border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: #fff; min-height: 100%; }
.product-card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; background: #e9eef3; }
.product-card-body { padding: 18px; }
.product-card h2 { margin: 0 0 8px; font-size: 19px; line-height: 1.25; }
.product-card p { color: var(--muted); margin: 0 0 16px; font-size: 14px; }
.card-actions { display: flex; justify-content: space-between; gap: 10px; align-items: center; color: var(--blue); font-weight: 700; font-size: 14px; }
.category-feature { display: grid; grid-template-columns: minmax(320px, .9fr) minmax(0, 1.1fr); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: var(--blue); color: #fff; margin-bottom: 48px; }
.category-feature.compact { margin-bottom: 24px; }
.category-feature img { width: 100%; height: 100%; min-height: 360px; object-fit: cover; }
.category-feature > div { display: flex; flex-direction: column; justify-content: center; align-items: flex-start; padding: clamp(32px, 5vw, 64px); }
.category-feature h2 { margin: 0 0 12px; font-size: clamp(30px, 4vw, 48px); line-height: 1.1; letter-spacing: 0; }
.category-feature p { max-width: 680px; color: rgba(255,255,255,.84); }
.category-feature .eyebrow { color: #b9e8d5; }
.category-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0 24px; }
.category-tags span { border: 1px solid rgba(255,255,255,.34); border-radius: 999px; padding: 7px 10px; font-size: 13px; }
.product-section-heading { margin-top: 10px; }
.badge { display: inline-flex; padding: 4px 7px; border-radius: 999px; font-size: 11px; background: #e9f4ef; color: var(--green); }
.badge.muted { background: #f1eee6; color: #8a6516; }
.split-band { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(380px, .9fr); min-height: 540px; background: var(--blue); color: #fff; }
.split-band.reverse { grid-template-columns: .9fr 1.1fr; background: #fff; color: var(--ink); }
.split-band.reverse .split-image { order: 2; }
.split-image img { width: 100%; height: 100%; object-fit: cover; }
.split-content { display: flex; flex-direction: column; justify-content: center; padding: clamp(48px, 6vw, 96px); }
.split-content h2 { margin: 0 0 14px; font-size: clamp(30px, 4vw, 48px); line-height: 1.12; letter-spacing: 0; }
.split-content p { color: inherit; opacity: .86; }
.cert-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; align-items: start; }
.cert-row img, .certificate img { width: 100%; border: 1px solid var(--line); border-radius: 8px; background: #fff; object-fit: contain; aspect-ratio: 3 / 4; }
.page-hero { background: linear-gradient(180deg, #f7fafc, #fff); border-bottom: 1px solid var(--line); }
.page-hero.compact { padding: 76px 0 46px; }
.product-hero { padding: 56px 0; background: #f7fafc; border-bottom: 1px solid var(--line); }
.product-hero-grid { display: grid; grid-template-columns: minmax(0, .95fr) minmax(320px, .8fr); gap: 48px; align-items: center; }
.product-hero h1 { margin: 0 0 14px; font-size: clamp(36px, 5vw, 58px); line-height: 1.08; letter-spacing: 0; }
.product-hero p { color: var(--muted); font-size: 18px; }
.product-hero img { border-radius: 8px; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border: 1px solid var(--line); }
.product-detail-grid { align-items: start; }
.variant-band { background: var(--surface); }
.variant-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.variant-card { border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: #fff; }
.variant-card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; background: #e9eef3; }
.variant-card > div { padding: 18px; }
.variant-card h3 { margin: 10px 0 6px; font-size: 24px; line-height: 1.15; }
.variant-card p { margin: 0; color: var(--muted); }
.grade-badge { display: inline-flex; padding: 5px 8px; border-radius: 999px; background: #e7f4ee; color: #166a4c; font-size: 12px; font-weight: 800; }
.colored-product-band { background: #eef5f2; }
.colored-product-grid { display: grid; grid-template-columns: minmax(320px, .9fr) minmax(0, 1fr); gap: 48px; align-items: center; }
.colored-product-grid > img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 8px; border: 1px solid var(--line); background: #fff; }
.colored-product-grid h2 { margin: 0 0 12px; font-size: clamp(30px, 4vw, 46px); line-height: 1.12; letter-spacing: 0; }
.colored-product-grid p { color: var(--muted); }
.color-swatches { display: flex; gap: 10px; margin: 20px 0 24px; }
.swatch { width: 28px; height: 28px; border-radius: 50%; border: 3px solid #fff; box-shadow: 0 0 0 1px rgba(15,31,51,.2); }
.swatch.blue { background: #2779bd; }
.swatch.pink { background: #d96c8d; }
.swatch.yellow { background: #e0b735; }
.pill-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.pill-list span { border: 1px solid var(--line); padding: 8px 10px; border-radius: 999px; color: var(--blue); background: #fff; font-size: 13px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 12px 14px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
tr:last-child th, tr:last-child td { border-bottom: 0; }
th { width: 38%; color: var(--blue); background: #f8fafc; }
.check-list { margin: 0; padding-left: 20px; }
.check-list li { margin-bottom: 10px; }
.inquiry-form { display: grid; gap: 14px; background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 20px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
label { display: grid; gap: 6px; font-weight: 700; font-size: 14px; }
input, select, textarea { width: 100%; border: 1px solid #cbd6e2; border-radius: 8px; padding: 11px 12px; font: inherit; color: var(--ink); background: #fff; }
textarea { resize: vertical; }
.honeypot { display: none; }
.image-card-grid, .cert-grid, .gallery-grid, .resource-grid { display: grid; gap: 18px; }
.image-card-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.image-card, .certificate, .resource-card, .contact-panel { border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: #fff; }
.image-card img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.image-card div, .certificate, .resource-card a, .contact-panel { padding: 20px; }
.image-card h2, .certificate h2, .resource-card h2 { margin: 0 0 8px; font-size: 21px; line-height: 1.2; }
.image-card p, .certificate p, .resource-card p, .contact-panel p { color: var(--muted); }
.cert-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.process-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 14px; }
.process-grid div { padding: 20px; background: #fff; border: 1px solid var(--line); border-radius: 8px; }
.process-grid span { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--blue); color: #fff; font-weight: 800; margin-bottom: 12px; }
.gallery-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.gallery-grid figure { margin: 0; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: #fff; }
.gallery-grid img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.gallery-band { background: var(--surface); }
.product-gallery-group { margin: 0 0 42px; }
.product-gallery-group:last-child { margin-bottom: 0; }
.product-gallery-group h3 { margin: 0 0 14px; font-size: 22px; line-height: 1.2; }
.product-gallery-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.product-gallery-grid figure { margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.product-gallery-grid img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; background: #e9eef3; }
.product-gallery-grid figcaption { min-height: 44px; overflow-wrap: anywhere; }
.document-band { background: #fff; }
.source-document-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.source-document { display: flex; align-items: flex-start; gap: 12px; padding: 18px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); }
.source-document > span { display: inline-flex; align-items: center; justify-content: center; min-width: 40px; min-height: 28px; padding: 4px 6px; border-radius: 6px; background: #e8f2ed; color: #166a4c; font-size: 12px; font-weight: 800; }
.source-document h3 { margin: 0 0 8px; font-size: 16px; line-height: 1.3; overflow-wrap: anywhere; }
.source-document a { color: var(--blue); font-size: 14px; font-weight: 800; }
figcaption { padding: 12px 14px; color: var(--muted); font-size: 14px; }
.resource-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.report-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.report-card { display: flex; flex-direction: column; min-width: 0; padding: 22px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.report-card-head { display: flex; align-items: center; gap: 9px; margin-bottom: 16px; color: var(--blue); font-size: 13px; font-weight: 800; }
.report-mark { display: inline-flex; align-items: center; justify-content: center; min-width: 42px; min-height: 28px; padding: 4px 7px; border-radius: 6px; background: #e8f2ed; color: #166a4c; font-size: 12px; }
.report-card h3 { margin: 0 0 8px; font-size: 20px; line-height: 1.28; overflow-wrap: anywhere; }
.report-sample { margin: 0 0 16px; color: var(--muted); font-size: 14px; }
.report-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 0 0 16px; }
.report-meta div { min-width: 0; padding: 10px; background: var(--surface); border-radius: 6px; }
.report-meta dt { color: var(--muted); font-size: 12px; }
.report-meta dd { margin: 2px 0 0; color: var(--blue); font-size: 13px; font-weight: 800; overflow-wrap: anywhere; }
.report-results { margin: 0 0 14px; padding-left: 20px; color: #30465b; font-size: 14px; }
.report-results li { margin-bottom: 5px; }
.report-disclaimer { margin: auto 0 16px; padding-top: 4px; color: var(--muted); font-size: 12px; }
.report-download { align-self: flex-start; }
.narrow { max-width: 820px; }
.sitemap-list { columns: 2; }
.source-note { font-size: 13px; color: var(--muted); }
.site-footer { background: #081f38; color: #dce7f2; padding: 54px 0 24px; }
.footer-grid { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 30px; }
.footer-grid h2 { margin: 0 0 12px; font-size: 15px; color: #fff; }
.footer-grid a { display: block; margin: 8px 0; color: #dce7f2; }
.footer-brand { font-weight: 800; font-size: 24px; color: #fff; }
.footer-bottom { width: min(var(--max), calc(100% - 40px)); margin: 28px auto 0; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.14); color: #a9b8c7; font-size: 13px; }
.cookie-banner { position: fixed; left: 16px; right: 16px; bottom: 16px; display: none; align-items: center; justify-content: space-between; gap: 16px; max-width: 760px; margin: 0 auto; padding: 14px 16px; background: #fff; border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 18px 48px rgba(0,0,0,.16); z-index: 30; }
.cookie-banner.show { display: flex; }
.cookie-banner p { margin: 0; color: var(--muted); font-size: 14px; }
.cookie-banner button { border: 0; background: var(--blue); color: #fff; border-radius: 8px; padding: 9px 14px; font-weight: 700; }
@media (min-width: 1041px) {
  .nav-toggle { display: none; }
}
@media (max-width: 1040px) {
  .site-header { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding-top: 10px; padding-right: 108px; padding-bottom: 10px; }
  .primary-nav, .language-switcher, .quote-btn { display: none; }
  .nav-toggle { display: inline-flex; position: absolute; right: 18px; top: 16px; margin-left: auto; color: var(--ink); z-index: 12; }
  .site-header.open .primary-nav, .site-header.open .language-switcher, .site-header.open .quote-btn { display: flex; width: 100%; }
  .site-header.open .primary-nav { flex-wrap: wrap; padding-bottom: 8px; }
  .site-header.open .language-switcher { flex-wrap: wrap; }
  .site-header.open .quote-btn { width: auto; }
  .product-grid, .product-grid-three, .image-card-grid, .report-grid, .product-gallery-grid, .source-document-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 760px) {
  .site-header { padding: 10px 96px 10px 16px; min-height: 64px; }
  .nav-toggle { right: 16px; top: 14px; }
  .brand { min-width: 0; }
  .brand small { display: none; }
  .hero { min-height: 70vh; }
  .hero-content { width: calc(100% - 32px); padding: 44px 0; }
  .intro-grid, .two-col, .product-hero-grid, .split-band, .split-band.reverse, .category-feature, .colored-product-grid { grid-template-columns: 1fr; }
  .split-band.reverse .split-image { order: 0; }
  .split-content { padding: 42px 20px; }
  .product-grid, .product-grid.small, .product-grid-three, .variant-grid, .image-card-grid, .cert-grid, .gallery-grid, .resource-grid, .report-grid, .product-gallery-grid, .source-document-grid, .process-grid, .stats-row, .stats-row.wide, .form-grid { grid-template-columns: 1fr; }
  .report-meta { grid-template-columns: 1fr; }
  .category-feature img { min-height: 0; aspect-ratio: 4 / 3; }
  .category-feature > div { padding: 32px 20px; }
  .content-band, .intro-strip { padding: 48px 0; }
  .page-hero.compact { padding: 54px 0 34px; }
  .footer-grid { grid-template-columns: 1fr; }
  .sitemap-list { columns: 1; }
  .cookie-banner { align-items: stretch; flex-direction: column; }
}