:root {
    --ink: #15324b;
    --navy: #003b70;
    --blue: #087ecb;
    --blue-dark: #0065aa;
    --blue-soft: #eef7fc;
    --green: #16816d;
    --line: #dce5eb;
    --muted: #607487;
    --surface: #f7f9fa;
    --white: #fff;
    --shadow: 0 18px 50px rgba(14, 50, 79, .08);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    background: var(--white);
    color: var(--ink);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
    line-height: 1.65;
    margin: 0;
    overflow-x: hidden;
}
body.site-menu-open { overflow: hidden; }
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-dark); }
img { height: auto; max-width: 100%; }
button, input, select, textarea { font: inherit; }
h1, h2, h3, h4, p { overflow-wrap: break-word; }
h1, h2, h3, h4 { color: var(--navy); font-weight: 700; letter-spacing: 0; }
.container-75 { margin-inline: auto; max-width: 1420px; padding-inline: 0; width: calc(100% - 64px); }
.section-block { padding: 104px 0; }
.section-tint { background: var(--surface); }
.section-kicker, .card-eyebrow {
    color: var(--blue);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0;
    margin: 0 0 12px;
    text-transform: uppercase;
}
.section-heading-row {
    align-items: end;
    display: grid;
    gap: 48px;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 520px);
    margin-bottom: 48px;
}
.section-heading-row > p { color: var(--muted); margin: 0; }
.section-heading-row h2, .selection-copy h2, .evidence-copy h2, .compact-faq-layout h2,
.buyer-assurance h2, .inquiry-split > div > h2, .company-story h2, .contact-details h2,
.catalog-layout h2, .general-page-main > h2 {
    font-size: 40px;
    line-height: 1.18;
    margin: 0 0 18px;
}
.button-primary, .button-secondary, .button-card {
    align-items: center;
    border: 1px solid var(--blue);
    border-radius: 2px;
    display: inline-flex;
    font-weight: 700;
    justify-content: center;
    min-height: 50px;
    padding: 12px 22px;
}
.button-primary, .button-card { background: var(--blue); color: var(--white); }
.button-secondary { background: var(--white); color: var(--navy); }
.button-primary:hover, .button-card:hover { background: var(--blue-dark); border-color: var(--blue-dark); color: var(--white); }
.button-secondary:hover { border-color: var(--navy); color: var(--navy); }
.arrow-link, .text-link { color: var(--blue); font-weight: 700; }
.arrow-link::after, .text-link::after { content: "  >"; }

.site-header {
    background: rgba(255, 255, 255, .98);
    border-bottom: 1px solid var(--line);
    position: sticky;
    top: 0;
    z-index: 1100;
}
.site-header-row {
    align-items: center;
    display: grid;
    gap: 28px;
    grid-template-columns: 190px minmax(0, 1fr) auto;
    min-height: 84px;
}
.site-brand { display: inline-flex; }
.site-brand img { display: block; width: 172px; }
.site-desktop-nav { align-items: stretch; align-self: stretch; display: flex; gap: 28px; justify-content: center; }
.site-desktop-nav > a, .site-desktop-nav > .site-nav-item > a {
    align-items: center;
    color: var(--ink);
    display: flex;
    font-size: 14px;
    font-weight: 700;
    min-height: 83px;
    position: relative;
    white-space: nowrap;
}
.site-desktop-nav > a::after, .site-desktop-nav > .site-nav-item > a::after {
    background: var(--blue);
    bottom: 0;
    content: "";
    height: 2px;
    left: 0;
    position: absolute;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .18s ease;
    width: 100%;
}
.site-desktop-nav > a:hover, .site-desktop-nav > .site-nav-item > a:hover,
.site-desktop-nav > a.is-active, .site-desktop-nav > .site-nav-item.is-active > a { color: var(--blue); }
.site-desktop-nav > a:hover::after, .site-desktop-nav > a.is-active::after,
.site-desktop-nav > .site-nav-item:hover > a::after, .site-desktop-nav > .site-nav-item.is-active > a::after { transform: scaleX(1); }
.site-header-quote { background: var(--blue); color: var(--white); font-size: 14px; font-weight: 700; padding: 12px 16px; white-space: nowrap; }
.site-header-quote:hover { background: var(--blue-dark); color: var(--white); }
.site-nav-item { align-items: center; display: flex; position: relative; }
.site-nav-menu {
    background: var(--white);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    left: -18px;
    min-width: 278px;
    opacity: 0;
    padding: 10px 0;
    pointer-events: none;
    position: absolute;
    top: 100%;
    transform: translateY(6px);
    transition: opacity .16s ease, transform .16s ease;
    visibility: hidden;
    z-index: 1000;
}
.site-nav-menu::before { content: ""; height: 10px; left: 0; position: absolute; right: 0; top: -8px; }
.site-nav-dropdown:hover .site-nav-menu, .site-nav-dropdown:focus-within .site-nav-menu { opacity: 1; pointer-events: auto; transform: translateY(0); visibility: visible; }
.site-nav-menu-wide { display: grid; grid-template-columns: repeat(2, minmax(210px, 1fr)); min-width: 520px; }
.site-nav-menu a { color: var(--ink); display: block; font-size: 14px; padding: 10px 18px; white-space: nowrap; }
.site-nav-menu a:hover, .site-nav-menu a:focus { background: var(--blue-soft); color: var(--blue); }
.site-menu-toggle { background: transparent; border: 0; display: none; height: 44px; padding: 9px; width: 44px; }
.site-menu-toggle span { background: var(--navy); display: block; height: 2px; margin: 5px 0; width: 24px; }
.site-mobile-nav { background: var(--white); border-top: 1px solid var(--line); max-height: calc(100vh - 76px); overflow-y: auto; padding: 8px 24px 24px; }
.site-mobile-nav[hidden] { display: none; }
.site-mobile-nav > a, .site-mobile-nav summary { border-bottom: 1px solid var(--line); color: var(--ink); cursor: pointer; display: block; font-weight: 700; padding: 14px 0; }
.site-mobile-nav details a { color: var(--muted); display: block; padding: 10px 18px; }

.factory-hero {
    align-items: center;
    display: flex;
    min-height: min(680px, calc(100svh - 118px));
    overflow: hidden;
    position: relative;
}
.factory-hero-background, .factory-hero-background img { height: 100%; inset: 0; position: absolute; width: 100%; }
.factory-hero-background img { object-fit: cover; object-position: center; }
.factory-hero-overlay { background: rgba(255, 255, 255, .76); inset: 0; position: absolute; }
.factory-hero-inner { align-items: center; display: flex; min-height: inherit; position: relative; z-index: 1; }
.factory-hero-copy { max-width: 760px; padding: 64px 0; }
.factory-hero h1, .inner-hero h1, .company-hero h1, .product-detail-summary h1, .article-header h1, .not-found h1 {
    font-size: 56px;
    line-height: 1.08;
    margin: 0 0 24px;
}
.factory-hero-lead, .company-hero p, .product-lead, .article-deck {
    color: #3f5a70;
    font-size: 19px;
    line-height: 1.72;
    max-width: 700px;
}
.factory-hero-actions, .detail-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 30px 0; }
.hero-specs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 40px 0 0; max-width: 720px; }
.hero-specs div { border-left: 2px solid var(--blue); padding: 0 20px; }
.hero-specs dt { color: var(--navy); font-size: 20px; font-weight: 700; }
.hero-specs dd { color: var(--muted); font-size: 13px; margin: 4px 0 0; }
.proof-bar { background: var(--white); border-bottom: 1px solid var(--line); }
.proof-bar-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.proof-bar-grid span { border-right: 1px solid var(--line); color: var(--ink); font-size: 13px; font-weight: 700; padding: 20px 16px; text-align: center; }
.proof-bar-grid span:last-child { border-right: 0; }

.family-grid { display: grid; gap: 34px 32px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.family-item { align-items: center; color: var(--ink); display: grid; gap: 22px; grid-template-columns: 128px minmax(0, 1fr); min-height: 190px; padding: 16px 0 28px; position: relative; }
.family-item::after { background: var(--line); bottom: 0; content: ""; height: 1px; left: 0; position: absolute; right: 0; }
.family-item:hover::after { background: var(--blue); }
.family-item img { aspect-ratio: 1; object-fit: contain; width: 128px; }
.family-item h3 { font-size: 21px; margin: 0 0 10px; }
.family-item p { color: var(--muted); font-size: 14px; line-height: 1.6; margin: 0 0 12px; }
.family-item span { color: var(--blue); font-size: 13px; font-weight: 700; }
.family-grid-compact .family-item { min-height: 180px; }

.selection-layout, .evidence-layout, .compact-faq-layout, .inquiry-split, .company-story, .buyer-assurance, .contact-layout {
    display: grid;
    gap: 88px;
    grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr);
}
.selection-copy, .evidence-copy { align-self: center; }
.selection-copy > p:not(.section-kicker), .evidence-copy > p:not(.section-kicker) { color: var(--muted); font-size: 17px; }
.selection-steps { list-style: none; margin: 0; padding: 0; }
.selection-steps li { align-items: start; border-top: 1px solid var(--line); display: grid; gap: 22px; grid-template-columns: 52px minmax(0, 1fr); padding: 24px 0; }
.selection-steps strong { color: var(--blue); font-size: 20px; }
.selection-steps h3 { font-size: 19px; margin: 0 0 6px; }
.selection-steps p { color: var(--muted); margin: 0; }
.evidence-band { background: var(--white); border-bottom: 1px solid var(--line); border-top: 1px solid var(--line); }
.evidence-layout { align-items: center; gap: 76px; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); }
.evidence-gallery { display: grid; gap: 10px; grid-template-columns: 1.05fr .95fr; grid-template-rows: repeat(2, minmax(0, 1fr)); height: 520px; overflow: hidden; }
.evidence-gallery img { display: block; height: 100%; object-fit: cover; width: 100%; }
.evidence-gallery img:first-child { grid-row: 1 / span 2; }
.check-list { list-style: none; margin: 26px 0; padding: 0; }
.check-list li { border-bottom: 1px solid var(--line); padding: 13px 0 13px 28px; position: relative; }
.check-list li::before { color: var(--green); content: "✓"; left: 0; position: absolute; }
.inline-links { display: flex; flex-wrap: wrap; gap: 24px; }
.inline-links a { font-weight: 700; }
.resource-link-grid { display: grid; gap: 32px; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.resource-link-grid a { border-top: 2px solid var(--blue); color: var(--ink); display: grid; gap: 12px; padding: 24px 0; }
.resource-link-grid strong { font-size: 19px; }
.resource-link-grid span { color: var(--muted); font-size: 14px; }
.application-list { display: grid; gap: 24px; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.application-list img { aspect-ratio: 4 / 3; object-fit: cover; width: 100%; }
.application-list h3 { font-size: 17px; margin-top: 14px; }
.faq-accordion details, .faq-groups details { border-top: 1px solid var(--line); padding: 20px 0; }
.faq-accordion summary, .faq-groups summary { color: var(--navy); cursor: pointer; font-size: 18px; font-weight: 700; list-style: none; padding-right: 36px; position: relative; }
.faq-accordion summary::after, .faq-groups summary::after { content: "+"; position: absolute; right: 4px; }
.faq-accordion details[open] summary::after, .faq-groups details[open] summary::after { content: "−"; }
.faq-accordion details p, .faq-groups details p { color: var(--muted); margin: 14px 0 0; }

.inner-hero { background: var(--surface); border-bottom: 1px solid var(--line); padding: 64px 0; }
.inner-hero-grid { align-items: end; display: grid; gap: 70px; grid-template-columns: minmax(0, 1.15fr) minmax(320px, .85fr); }
.inner-hero h1 { font-size: 48px; margin-bottom: 0; }
.inner-hero-summary { color: var(--muted); font-size: 17px; }
.inner-hero-summary > p { margin: 0 0 22px; }
.breadcrumb-line { color: var(--muted); font-size: 13px; margin: 0 0 26px; }
.hero-quick-links { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 22px; }
.hero-quick-links a { color: var(--blue); font-weight: 700; }
.subcategories-band { background: var(--white); border-bottom: 1px solid var(--line); }
.subcategory-links { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr)); padding: 22px 0; }
.subcategory-links a { align-items: center; border: 1px solid var(--line); color: var(--ink); display: flex; min-height: 48px; padding: 10px 14px; }
.subcategory-links a:hover, .subcategory-links a:focus { border-color: var(--blue); color: var(--blue); }

.product-list-layout { align-items: start; display: grid; gap: 56px; grid-template-columns: 290px minmax(0, 1fr); }
.product-filter-panel { min-width: 0; position: sticky; top: 110px; }
.product-filter-panel h2 { font-size: 26px; }
.variant-filter { border: 0; margin: 22px 0 32px; padding: 0; }
.variant-filter-head { display: none; }
.product-facet-group { border: 0; border-top: 1px solid var(--line); margin: 0; padding: 18px 0 8px; }
.product-facet-group legend { color: var(--navy); float: none; font-size: 15px; font-weight: 700; margin: 0 0 9px; width: 100%; }
.product-facet-group select { background: var(--white); border: 1px solid #b8c8d4; color: var(--ink); min-height: 46px; padding: 9px 10px; width: 100%; }
.variant-filter-options { display: grid; }
.variant-filter-option { align-items: center; border-bottom: 1px solid var(--line); color: var(--ink); display: grid; gap: 9px; grid-template-columns: 18px minmax(0, 1fr) auto; padding: 10px 2px; }
.variant-filter-option input, .variant-filter-all input { height: 16px; margin: 0; min-height: 0; width: 16px; }
.variant-filter-option:hover, .variant-filter-option.active { color: var(--blue); }
.variant-filter-option.disabled { opacity: .4; }
.variant-filter-option small { color: var(--muted); }
.variant-filter-all { align-items: start; color: var(--muted); display: grid; font-size: 12px; gap: 9px; grid-template-columns: 18px minmax(0, 1fr); padding: 14px 2px 0; }
.variant-filter-actions { display: grid; gap: 8px; margin-top: 18px; }
.variant-filter-actions button, .variant-filter-actions a { align-items: center; border: 1px solid var(--blue); display: flex; justify-content: center; min-height: 44px; padding: 10px; }
.variant-filter-actions button { background: var(--blue); color: var(--white); }
.selection-help { border-left: 3px solid var(--blue); padding: 8px 0 8px 20px; }
.selection-help h3 { font-size: 19px; }
.selection-help p { color: var(--muted); font-size: 14px; }
.selection-help a { font-weight: 700; }
.product-results { min-width: 0; }
.results-heading { align-items: end; border-bottom: 1px solid var(--line); display: grid; gap: 40px; grid-template-columns: minmax(0, 1fr) minmax(260px, 440px); margin-bottom: 34px; padding-bottom: 24px; }
.results-heading h2 { font-size: 31px; margin: 0; }
.results-heading > p { color: var(--muted); margin: 0; }

.taishan-product-list > [class*="col-"] { display: flex; min-width: 0; }
.series-card, .blog-card { background: var(--white); border: 1px solid var(--line); border-radius: 6px; color: var(--ink); display: flex; flex-direction: column; min-width: 0; overflow: hidden; padding: 20px; width: 100%; }
.series-card h2, .series-card h3, .blog-card h2, .blog-card h3 { font-size: 20px; line-height: 1.35; margin: 13px 0; }
.series-card h2 a, .series-card h3 a, .blog-card h2 a, .blog-card h3 a { color: inherit; }
.series-card > p:not(.card-eyebrow, .matched-label) { color: var(--muted); }
.series-card-media { margin: -20px -20px 20px; min-width: 0; }
.series-card-image { aspect-ratio: 4 / 3; background: var(--surface); display: grid; overflow: hidden; place-items: center; }
.series-card-image picture { display: block; height: 100%; width: 100%; }
.series-card-image img, .series-card-main-img { display: block; height: 100% !important; object-fit: contain; padding: 24px; width: 100% !important; }
.series-variant-thumbs { background: var(--white); display: grid; gap: 6px; grid-template-columns: repeat(5, minmax(0, 1fr)); padding: 10px 10px 0; }
.series-variant-thumb { align-items: center; background: var(--white); border: 1px solid var(--line); border-radius: 2px; color: var(--muted); cursor: pointer; display: grid; grid-template-rows: 62px 20px; height: 92px; min-width: 0; padding: 4px; }
.series-variant-thumb:hover, .series-variant-thumb:focus-visible, .series-variant-thumb.is-active { border-color: var(--blue); outline: 0; }
.series-variant-thumb picture { display: block; height: 62px; min-width: 0; }
.series-variant-thumb img { display: block; height: 62px !important; object-fit: contain; padding: 2px; width: 100% !important; }
.series-variant-thumb span { display: block; font-size: 9px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.matched-label { color: var(--green); font-size: 13px; font-weight: 700; margin: 8px 0 0; }
.variant-summary { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0; }
.variant-summary span { background: var(--blue-soft); color: var(--navy); font-size: 12px; padding: 7px 9px; }
.button-card { margin-top: auto; width: 100%; }
.blog-card { padding: 0; }
.blog-card > img, .blog-card-media img { aspect-ratio: 16 / 9; display: block; object-fit: cover; width: 100%; }
.blog-card-body { padding: 26px; }
.blog-card time { color: var(--muted); font-size: 13px; }
.editorial-layout { display: grid; gap: 56px; grid-template-columns: 260px minmax(0, 1fr); }
.editorial-intro { position: sticky; top: 110px; }
.editorial-intro h2 { font-size: 27px; }
.editorial-intro p { color: var(--muted); }
.taishan-pagination { margin: 30px 0 0; }
.pagination { align-items: center; display: flex; flex-wrap: wrap; gap: 6px; margin: 0; padding: 0; }
.pagination-total, .pagination-link, .pagination-ellipsis { align-items: center; display: inline-flex; font-size: 14px; justify-content: center; min-height: 40px; }
.pagination-total { color: var(--muted); margin-right: 10px; }
.pagination-link { border: 1px solid var(--line); color: var(--ink); min-width: 40px; padding: 8px 12px; }
.pagination-link:hover, .pagination-link:focus-visible, .pagination-link.active { background: var(--blue); border-color: var(--blue); color: var(--white); outline: 0; }
.pagination-link.disabled { background: var(--surface); color: #9aabb8; cursor: default; }
.pagination-ellipsis { color: var(--muted); min-width: 30px; }
.category-seo-section { border-top: 1px solid var(--line); }
.category-seo-content { max-width: 1040px; padding-bottom: 88px; padding-top: 88px; }
.category-seo-content h2 { font-size: 28px; margin: 38px 0 14px; }
.category-seo-content h2:first-child { margin-top: 0; }
.category-seo-content p { color: var(--muted); font-size: 17px; line-height: 1.82; }

.detail-breadcrumb { padding-top: 28px; }
.product-detail-hero { padding: 28px 0 90px; }
.product-detail-grid { align-items: center; display: grid; gap: 80px; grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr); }
.product-detail-gallery { background: var(--surface); margin: 0; min-width: 0; padding: 30px; }
.product-detail-gallery picture { display: block; width: 100%; }
.product-group-main-image { aspect-ratio: 4 / 3; display: block; object-fit: contain; width: 100%; }
.product-detail-gallery figcaption { color: var(--muted); font-size: 12px; margin: 14px 0 0; text-align: center; }
.product-detail-summary h1 { font-size: 42px; }
.product-proof-list { display: grid; gap: 8px; grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 28px 0; }
.product-proof-list span { border-left: 2px solid var(--green); padding: 7px 12px; }
.response-note { color: var(--muted); font-size: 13px; }
.product-overview-grid { display: grid; gap: 72px; grid-template-columns: minmax(0, 1fr) 320px; }
.product-overview-grid h2 { font-size: 34px; }
.spec-request-card, .page-action-panel, .article-aside, .catalog-guide { background: var(--surface); padding: 30px; }
.spec-request-card h3, .page-action-panel h3, .article-aside h2, .article-aside h3 { font-size: 24px; }
.spec-request-card li { margin: 10px 0; }
.taishan-content-body { color: #334f65; font-size: 17px; line-height: 1.85; }
.taishan-content-body h2 { font-size: 30px; line-height: 1.25; margin: 46px 0 14px; }
.taishan-content-body h2:first-child { margin-top: 0; }
.taishan-content-body h3 { font-size: 22px; margin: 32px 0 12px; }
.taishan-content-body p { margin: 0 0 18px; }
.taishan-content-body ul, .taishan-content-body ol { padding-left: 22px; }
.taishan-content-body img, .page-feature-image { display: block; height: auto; margin: 0 0 38px; max-width: 100%; width: 100%; }
.product-variants { display: grid; gap: 58px; margin-top: 48px; min-width: 0; }
.product-variant { background: var(--white); display: grid; gap: 50px; grid-template-columns: 270px minmax(0, 1fr); min-width: 0; padding: 44px 40px 58px 0; scroll-margin-top: 110px; }
.product-variant-body { min-width: 0; }
.product-variant-media { align-self: start; min-width: 0; }
.product-variant-media picture { display: block; width: 100%; }
.product-variant-media img { aspect-ratio: 1; display: block; object-fit: contain; padding: 14px; width: 100%; }
.variant-quote-link { display: block; font-size: 14px; font-weight: 700; margin-top: 14px; text-align: center; }
.product-variant h3 { font-size: 29px; margin: 0 0 12px; }
.spec-table-scroll { max-width: 100%; min-width: 0; overflow-x: auto; overscroll-behavior-inline: contain; width: 100%; }
.field-table, .variant-table { border-collapse: collapse; margin: 22px 0 0; min-width: 760px; width: 100%; }
.field-table th, .field-table td, .variant-table th, .variant-table td { border: 1px solid var(--line); padding: 12px; text-align: left; vertical-align: middle; }
.field-table th, .variant-table th { background: var(--blue-soft); color: var(--navy); font-weight: 700; }
.spec-heading-label, .spec-heading-unit { display: block; }
.spec-heading-unit { color: var(--muted); font-size: 11px; line-height: 1.2; margin-top: 4px; white-space: nowrap; }
.bearing-spec { align-items: center; display: inline-flex; flex-direction: column; gap: 6px; min-width: 86px; text-align: center; }
.bearing-spec img { height: 40px; object-fit: contain; width: 40px; }
.bearing-spec span { color: var(--muted); font-size: 11px; line-height: 1.25; }
.variant-svg-icon-group, .field-svg-icon-group { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0; }
.variant-svg-icon-item, .field-svg-icon-item { align-items: center; display: inline-flex; gap: 6px; }
.variant-svg-icon-item img, .field-svg-icon-item img { height: 28px; width: 28px; }
.variant-spec-inquiry-options { max-height: 260px; overflow-y: auto; }
.buyer-assurance { align-items: start; }
.assurance-points { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.assurance-points div { border-top: 1px solid var(--line); display: grid; gap: 4px; padding: 20px 0; }
.assurance-points strong { color: var(--blue); font-size: 22px; }
.assurance-points span { font-weight: 700; }

.article-header { padding: 66px 0 0; }
.article-container { max-width: 1080px; }
.article-header h1 { font-size: 50px; }
.article-byline { color: var(--muted); display: flex; gap: 20px; margin: 24px 0; }
.article-cover { aspect-ratio: 16 / 8; object-fit: cover; width: 100%; }
.article-layout { align-items: start; display: grid; gap: 64px; grid-template-columns: minmax(0, 1fr) 290px; padding-bottom: 104px; padding-top: 58px; }
.article-copy { max-width: 760px; }
.article-aside { position: sticky; top: 110px; }
.article-aside > a:not(.button-primary) { border-top: 1px solid var(--line); color: var(--ink); display: block; padding: 12px 0; }
.article-navigation { border-top: 1px solid var(--line); margin-top: 50px; padding-top: 24px; }

.company-hero { padding: 62px 0 0; }
.company-hero-grid { align-items: center; display: grid; gap: 70px; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); }
.company-hero picture { display: block; width: 100%; }
.company-hero img { aspect-ratio: 16 / 10; object-fit: cover; width: 100%; }
.trust-strip { border-bottom: 1px solid var(--line); border-top: 1px solid var(--line); }
.trust-strip-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.trust-strip-grid span { border-right: 1px solid var(--line); font-size: 13px; font-weight: 700; padding: 20px 14px; text-align: center; }
.company-stat-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.company-stat-grid div { border-top: 1px solid var(--line); display: grid; padding: 24px 0; }
.company-stat-grid strong { color: var(--blue); font-size: 25px; }
.company-stat-grid span { color: var(--muted); }
.capability-grid { display: grid; gap: 32px; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.capability-grid article { border-top: 2px solid var(--blue); padding: 22px 0; }
.capability-grid span { color: var(--blue); font-weight: 700; }
.capability-grid h3 { font-size: 19px; margin: 14px 0; }
.capability-grid p { color: var(--muted); }
.factory-photo-row { display: grid; gap: 16px; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 42px; }
.factory-photo-row img { aspect-ratio: 4 / 3; object-fit: cover; width: 100%; }
.resource-hero { border-bottom: 1px solid var(--line); padding: 62px 0; }
.resource-hero-grid { align-items: center; display: grid; gap: 70px; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); }
.resource-hero h1 { font-size: 54px; margin: 14px 0 22px; }
.resource-hero p:not(.breadcrumb-line, .section-kicker) { color: var(--muted); font-size: 18px; max-width: 700px; }
.resource-hero-media { display: block; min-width: 0; width: 100%; }
.resource-hero-media img { aspect-ratio: 16 / 10; display: block; object-fit: cover; width: 100%; }
.resource-hero-compact .resource-hero-grid { grid-template-columns: minmax(0, 1.08fr) minmax(320px, .72fr); }
.resource-hero-compact .resource-hero-media img { aspect-ratio: 4 / 3; max-height: 560px; }
.resource-content-layout { align-items: start; display: grid; gap: 80px; grid-template-columns: minmax(0, 1fr) 320px; }
.resource-main { min-width: 0; }
.resource-side { border-top: 2px solid var(--blue); position: sticky; top: 110px; }
.resource-side h2 { font-size: 28px; margin: 16px 0 20px; }
.resource-side > p:not(.section-kicker) { color: var(--muted); }
.resource-side .button-primary { margin: 16px 0 10px; width: 100%; }
.resource-side .arrow-link { border-top: 1px solid var(--line); display: block; padding: 14px 0; }
.resource-photo-grid { display: grid; gap: 24px; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 42px; }
.resource-photo-grid picture, .resource-photo-grid img { display: block; width: 100%; }
.resource-photo-grid img { aspect-ratio: 4 / 3; object-fit: cover; }
.resource-photo-grid picture:first-child img { object-position: center 45%; }
.quality-check-grid, .oem-process-grid, .application-sector-grid, .selection-guide-grid { display: grid; gap: 28px; list-style: none; margin: 0; padding: 0; }
.quality-check-grid, .oem-process-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.application-sector-grid, .selection-guide-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.quality-check-grid article, .oem-process-grid li, .application-sector-grid article, .selection-guide-grid li { border-top: 2px solid var(--blue); padding: 24px 0 12px; }
.quality-check-grid span, .oem-process-grid strong, .application-sector-grid span, .selection-guide-grid strong { color: var(--blue); font-size: 22px; font-weight: 700; }
.quality-check-grid h2, .application-sector-grid h2, .selection-guide-grid h2 { font-size: 21px; margin: 14px 0 10px; }
.oem-process-grid h3 { font-size: 20px; margin: 14px 0 10px; }
.quality-check-grid p, .oem-process-grid p, .application-sector-grid p, .selection-guide-grid p { color: var(--muted); margin: 0; }
.general-page-layout { align-items: start; display: grid; gap: 80px; grid-template-columns: minmax(0, 1fr) 320px; }
.general-page-main { min-width: 0; }
.general-page-main > h2 { margin-bottom: 36px; }
.page-action-panel { position: sticky; top: 110px; }
.page-action-panel a { margin: 8px 0; width: 100%; }
.catalog-layout { align-items: start; display: grid; gap: 78px; grid-template-columns: minmax(0, 1.15fr) minmax(320px, .85fr); }
.catalog-family-links { display: grid; gap: 0; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 36px; }
.catalog-family-links a { border-top: 1px solid var(--line); color: var(--ink); display: grid; gap: 6px; padding: 20px 18px 20px 0; }
.catalog-family-links strong { font-size: 17px; }
.catalog-family-links span { color: var(--muted); font-size: 13px; }
.catalog-guide .taishan-content-body { font-size: 15px; }
.catalog-guide .taishan-content-body h2 { font-size: 23px; margin-top: 30px; }

.faq-page-layout { align-items: start; display: grid; gap: 76px; grid-template-columns: 240px minmax(0, 1fr); }
.faq-index { position: sticky; top: 110px; }
.faq-index h2 { font-size: 22px; }
.faq-index a { border-bottom: 1px solid var(--line); color: var(--ink); display: block; padding: 11px 0; }
.faq-groups { display: grid; gap: 58px; }
.faq-groups section { scroll-margin-top: 110px; }
.faq-groups h2 { font-size: 31px; }
.faq-groups details p { max-width: 820px; }
.contact-layout { grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr); }
.contact-details dl div { border-bottom: 1px solid var(--line); padding: 17px 0; }
.contact-details dt { color: var(--muted); font-size: 12px; text-transform: uppercase; }
.contact-details dd { font-size: 17px; margin: 6px 0 0; }
.contact-response { border-left: 3px solid var(--blue); margin-top: 28px; padding: 8px 0 8px 20px; }
.contact-form-wrap, .inquiry-box { background: var(--white); border: 1px solid var(--line); border-radius: 6px; padding: 34px; }
.process-line { display: grid; gap: 32px; grid-template-columns: repeat(4, minmax(0, 1fr)); list-style: none; margin: 0; padding: 0; }
.process-line li { border-top: 2px solid var(--blue); padding: 22px 0; }
.process-line strong { color: var(--blue); font-size: 22px; }
.process-line h3 { font-size: 18px; margin: 14px 0 8px; }
.process-line p { color: var(--muted); }

.taishan-inquiry-section { background: var(--blue-soft); border-top: 1px solid #d8eaf5; padding: 88px 0; }
.inquiry-split { align-items: start; }
.inquiry-split > div { padding-top: 12px; }
.inquiry-split > div > p:not(.section-kicker) { color: var(--muted); font-size: 17px; }
.inquiry-box h2 { font-size: 26px; }
.inquiry-intro { color: var(--muted); }
.inquiry-form { display: grid; gap: 17px; }
.inquiry-form label { color: var(--navy); display: grid; font-weight: 700; gap: 7px; }
.inquiry-form input, .inquiry-form select, .inquiry-form textarea, .taishan-search-form input { background: var(--white); border: 1px solid #b8c8d4; min-height: 48px; padding: 10px 12px; width: 100%; }
.inquiry-form input:focus, .inquiry-form select:focus, .inquiry-form textarea:focus, .taishan-search-form input:focus { border-color: var(--blue); outline: 2px solid rgba(8, 126, 203, .14); }
.inquiry-form input[type="checkbox"] { height: 17px; min-height: 0; padding: 0; width: 17px; }
.inquiry-form textarea { min-height: 138px; resize: vertical; }
.inquiry-grid { display: grid; gap: 17px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.inquiry-hp { display: none !important; }
.inquiry-submit { background: var(--blue); border: 0; color: var(--white); cursor: pointer; font-weight: 700; min-height: 50px; padding: 12px 24px; width: fit-content; }
.inquiry-spec-group { border: 1px solid var(--line); display: grid; gap: 9px; min-width: 0; padding: 17px; }
.inquiry-spec-group legend { color: var(--navy); float: none; font-size: 15px; font-weight: 700; width: auto; }
.inquiry-spec-group label { align-items: start; display: grid; font-weight: 400; gap: 9px; grid-template-columns: 17px minmax(0, 1fr); }

.search-page { max-width: 1120px; }
.taishan-search-form { display: grid; gap: 10px; margin-bottom: 40px; }
.taishan-search-form label { color: var(--navy); font-weight: 700; }
.taishan-search-form > div { display: grid; grid-template-columns: minmax(0, 1fr) auto; }
.taishan-search-form button { border-radius: 0; }
.search-current { border-bottom: 1px solid var(--line); padding-bottom: 20px; }
.not-found { align-items: center; display: flex; min-height: 62vh; text-align: center; }
.not-found .container { max-width: 760px; }
.not-found p:not(.section-kicker) { color: var(--muted); font-size: 18px; }
.not-found .factory-hero-actions { justify-content: center; }

.site-footer { background: var(--surface); border-top: 1px solid var(--line); padding-top: 76px; }
.footer-top { align-items: start; display: grid; gap: 52px; grid-template-columns: 1.5fr 1fr 1fr 1fr; }
.footer-intro h2 { font-size: 30px; line-height: 1.2; }
.footer-intro > p:not(.section-kicker) { color: var(--muted); max-width: 480px; }
.footer-column h3 { font-size: 16px; margin-bottom: 18px; }
.footer-link-grid { display: grid; gap: 9px; }
.footer-link-grid a, .footer-contact a { color: var(--ink); font-size: 14px; }
.footer-contact p { color: var(--muted); font-size: 14px; }
.footer-bottom { align-items: center; border-top: 1px solid var(--line); display: flex; justify-content: space-between; margin-top: 58px; padding-bottom: 26px; padding-top: 24px; }
.footer-bottom p { color: var(--muted); font-size: 13px; margin: 0; }
.footer-bottom div { display: flex; gap: 20px; }
.footer-bottom a { color: var(--muted); font-size: 13px; }

@media (min-width: 1240px) and (max-width: 1510px) {
    .site-header-row { gap: 16px; grid-template-columns: 155px minmax(0, 1fr) auto; }
    .site-brand img { width: 150px; }
    .site-desktop-nav { gap: 17px; }
    .site-desktop-nav > a, .site-desktop-nav > .site-nav-item > a, .site-header-quote { font-size: 12px; }
}

@media (max-width: 1239.98px) {
    .site-header-row { grid-template-columns: 1fr auto auto; min-height: 76px; }
    .site-desktop-nav { display: none; }
    .site-menu-toggle { display: block; }
    .container-75 { width: calc(100% - 48px); }
    .factory-hero h1, .inner-hero h1, .company-hero h1, .article-header h1 { font-size: 46px; }
    .resource-hero h1 { font-size: 46px; }
    .family-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .resource-link-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .product-list-layout { grid-template-columns: 250px minmax(0, 1fr); }
    .capability-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .footer-top { grid-template-columns: 1.5fr repeat(3, 1fr); gap: 36px; }
}

@media (max-width: 991.98px) {
    .section-block { padding: 76px 0; }
    .factory-hero { min-height: 640px; }
    .factory-hero-overlay { background: rgba(255, 255, 255, .82); }
    .factory-hero-copy { max-width: 680px; }
    .inner-hero-grid, .company-hero-grid, .product-detail-grid, .selection-layout, .evidence-layout,
    .compact-faq-layout, .inquiry-split, .company-story, .buyer-assurance, .contact-layout,
    .general-page-layout, .product-overview-grid, .article-layout, .catalog-layout,
    .resource-hero-grid, .resource-hero-compact .resource-hero-grid, .resource-content-layout { grid-template-columns: 1fr; }
    .inner-hero-grid, .section-heading-row, .results-heading { gap: 26px; }
    .proof-bar-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .evidence-layout { gap: 44px; }
    .evidence-gallery { height: 430px; }
    .product-list-layout { grid-template-columns: 1fr; }
    .product-filter-panel, .editorial-intro, .article-aside, .page-action-panel, .faq-index { position: static; }
    .variant-filter-options { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .product-variant { grid-template-columns: 220px minmax(0, 1fr); padding-right: 28px; }
    .editorial-layout, .faq-page-layout { grid-template-columns: 1fr; }
    .faq-index { display: none; }
    .process-line { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .quality-check-grid, .oem-process-grid, .application-sector-grid, .selection-guide-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .resource-side { position: static; }
    .footer-top { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .footer-intro { grid-column: 1 / -1; }
}

@media (max-width: 767.98px) {
    .site-header-row { gap: 10px; grid-template-columns: 1fr auto; }
    .site-brand img { width: 146px; }
    .site-header-quote { display: none; }
    .container-75 { width: calc(100% - 32px); }
    .section-block { padding: 58px 0; }
    .section-heading-row, .results-heading { display: grid; grid-template-columns: 1fr; }
    .section-heading-row h2, .selection-copy h2, .evidence-copy h2, .compact-faq-layout h2,
    .buyer-assurance h2, .inquiry-split > div > h2, .company-story h2, .contact-details h2,
    .catalog-layout h2, .general-page-main > h2 { font-size: 31px; }
    .factory-hero { min-height: 610px; }
    .factory-hero-background img { object-position: 61% center; }
    .factory-hero-overlay { background: rgba(255, 255, 255, .86); }
    .factory-hero-copy { padding: 50px 0; }
    .factory-hero h1, .inner-hero h1, .company-hero h1, .product-detail-summary h1, .article-header h1, .not-found h1 { font-size: 36px; }
    .resource-hero { padding: 46px 0 0; }
    .resource-hero-grid { gap: 38px; }
    .resource-hero h1 { font-size: 36px; }
    .resource-hero-media { margin-inline: -16px; width: calc(100% + 32px); }
    .resource-hero-media img, .resource-hero-compact .resource-hero-media img { aspect-ratio: 4 / 3; max-height: none; }
    .factory-hero-lead, .product-lead, .article-deck { font-size: 17px; }
    .factory-hero-actions, .detail-actions { display: grid; }
    .factory-hero-actions a, .detail-actions a { width: 100%; }
    .hero-specs { grid-template-columns: 1fr; gap: 15px; }
    .hero-specs div { padding-left: 16px; }
    .proof-bar-grid { grid-template-columns: 1fr 1fr; }
    .proof-bar-grid span { font-size: 11px; padding: 15px 7px; }
    .inner-hero { padding: 46px 0; }
    .inner-hero-grid { grid-template-columns: 1fr; }
    .inner-hero-summary { font-size: 16px; }
    .subcategory-links { grid-template-columns: 1fr; }
    .family-grid { grid-template-columns: 1fr; }
    .family-item { gap: 18px; grid-template-columns: 104px minmax(0, 1fr); min-height: 160px; padding: 15px 0 24px; }
    .family-item img { width: 104px; }
    .resource-link-grid { grid-template-columns: 1fr; }
    .evidence-gallery { height: 350px; }
    .application-list, .factory-photo-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .resource-photo-grid, .quality-check-grid, .oem-process-grid, .application-sector-grid, .selection-guide-grid { grid-template-columns: 1fr; }
    .variant-filter-options { grid-template-columns: 1fr; }
    .series-card { padding: 16px; }
    .series-card-media { margin: -16px -16px 18px; }
    .series-card-image { aspect-ratio: 1; }
    .series-card-image img, .series-card-main-img { padding: 18px; }
    .series-variant-thumbs { overflow-x: auto; padding-bottom: 4px; grid-template-columns: repeat(5, minmax(72px, 1fr)); }
    .series-variant-thumb { grid-template-rows: 58px; height: 70px; }
    .series-variant-thumb picture, .series-variant-thumb img { height: 58px !important; }
    .series-variant-thumb span { display: none; }
    .product-detail-hero { padding-bottom: 58px; }
    .product-detail-grid { gap: 38px; }
    .product-detail-gallery { padding: 18px; }
    .product-proof-list, .company-stat-grid, .assurance-points, .inquiry-grid { grid-template-columns: 1fr; }
    .product-variant { gap: 24px; grid-template-columns: 1fr; padding: 30px 0 42px; }
    .product-variant-media { margin-inline: auto; max-width: 280px; width: 100%; }
    .product-variant h3 { font-size: 24px; }
    .field-table, .variant-table { min-width: 720px; }
    .taishan-content-body { font-size: 16px; }
    .taishan-content-body h2 { font-size: 26px; }
    .capability-grid, .process-line, .catalog-family-links { grid-template-columns: 1fr; }
    .article-header { padding-top: 40px; }
    .article-cover { aspect-ratio: 4 / 3; }
    .faq-groups { gap: 42px; }
    .faq-groups h2 { font-size: 26px; }
    .taishan-inquiry-section { padding: 58px 0; }
    .contact-form-wrap, .inquiry-box { padding: 22px; }
    .inquiry-split { gap: 36px; }
    .taishan-search-form > div { grid-template-columns: 1fr; }
    .footer-top { grid-template-columns: 1fr; }
    .footer-intro { grid-column: auto; }
    .footer-bottom { align-items: start; flex-direction: column; gap: 12px; }
}

@media (max-width: 420px) {
    .container-75 { width: calc(100% - 24px); }
    .factory-hero h1, .inner-hero h1, .company-hero h1, .product-detail-summary h1, .article-header h1, .not-found h1 { font-size: 32px; }
    .resource-hero h1 { font-size: 32px; }
    .family-item { grid-template-columns: 88px minmax(0, 1fr); }
    .family-item img { width: 88px; }
    .proof-bar-grid { grid-template-columns: 1fr; }
    .application-list, .factory-photo-row { grid-template-columns: 1fr; }
}