:root {
  --ink: #30383d;
  --navy: #3b464c;
  --navy-deep: #20282d;
  --red: #ed1c24;
  --red-dark: #c9151b;
  --muted: #60717a;
  --line: #dce2e5;
  --soft: #f4f6f7;
  --white: #fff;
  --max: 1216px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: "Segoe UI", Arial, Helvetica, sans-serif; font-size: 16px; line-height: 1.6; }
html[lang="zh-CN"] body { font-family: "Microsoft YaHei", "Noto Sans SC", "Segoe UI", Arial, sans-serif; }
body:has(dialog[open]) { overflow: hidden; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
h1, h2, h3, p { margin-top: 0; }
address { font-style: normal; }
[hidden] { display: none !important; }
.container { width: min(var(--max), calc(100% - 64px)); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.error-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; flex-direction: column; padding: 40px 20px; text-align: center; }
.error-page .brand-logo { margin-bottom: 52px; }
.error-code { margin: 0 0 6px; color: var(--red); font-size: 14px; font-weight: 800; letter-spacing: .15em; }
.error-page h1 { margin: 0 0 13px; color: var(--navy-deep); font-size: clamp(34px, 6vw, 54px); }
.error-page > p:not(.error-code) { margin: 0 0 25px; color: #526a76; line-height: 1.6; }
.skip-link { position: absolute; left: 16px; top: -80px; z-index: 100; padding: 10px 16px; background: var(--white); }
.skip-link:focus { top: 12px; }
:focus-visible { outline: 3px solid #d94a4f; outline-offset: 3px; }

.top-rule { height: 4px; background: var(--red); }
.site-header { position: relative; z-index: 20; background: var(--white); border-bottom: 1px solid var(--line); }
.language-bar { border-bottom: 1px solid #e6eaec; background: #f5f6f6; }
.language-bar-inner { min-height: 34px; display: flex; align-items: center; justify-content: flex-end; }
.language-control { display: inline-flex; align-items: center; gap: 7px; color: #5d6f78; font-size: 12px; }
.language-control svg { width: 15px; height: 15px; flex: 0 0 auto; }
.language-control span { font-weight: 650; }
.language-control select { min-width: 122px; padding: 2px 4px; border: 0; outline: 0; background: transparent; color: var(--navy-deep); font-size: 12px; font-weight: 700; cursor: pointer; }
.language-control select:focus-visible { outline: 2px solid #d94a4f; outline-offset: 2px; }
.header-inner { min-height: 82px; display: flex; align-items: center; gap: 36px; }
.brand-logo { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; color: var(--red); font-weight: 800; line-height: 1; white-space: nowrap; }
.brand-logo-mark { position: relative; display: block; width: 35px; height: 35px; overflow: hidden; flex: 0 0 auto; }
.brand-logo-mark img { position: absolute; top: 0; left: 50%; width: auto; max-width: none; height: 100%; transform: translateX(-50%); }
.brand-logo-name { font-size: 21px; letter-spacing: -.025em; }
.primary-nav { display: flex; align-items: center; gap: 32px; margin-left: auto; color: #3b505d; font-size: 14px; font-weight: 650; }
.primary-nav a { padding: 10px 0; }
.primary-nav a:hover, .section-heading a:hover, .text-button:hover { color: var(--red); }
.header-contact { display: inline-flex; align-items: center; gap: 10px; padding: 11px 16px; border: 1px solid #238456; background: #238456; color: var(--white); font-size: 14px; font-weight: 700; white-space: nowrap; transition: background-color .16s, border-color .16s; }
.header-contact:hover { border-color: #196c45; background: #196c45; }
.menu-toggle { display: none; border: 0; background: transparent; color: var(--navy); font-weight: 700; }

.hero { background: #f3f5f6; border-bottom: 1px solid var(--line); }
.hero-layout { min-height: 558px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(470px, .95fr); gap: 55px; align-items: center; padding-block: 54px; }
.hero-copy { min-width: 0; max-width: 590px; }
.hero h1 { max-width: 580px; margin-bottom: 22px; color: var(--navy-deep); font-size: clamp(42px, 4.3vw, 63px); font-weight: 730; letter-spacing: -.045em; line-height: 1.08; }
.hero-copy > p { max-width: 565px; margin-bottom: 28px; color: #526874; font-size: 18px; line-height: 1.7; }
.hero-actions { display: flex; align-items: center; gap: 13px; }
.button { min-height: 49px; display: inline-flex; align-items: center; justify-content: center; gap: 24px; padding: 11px 19px; border: 1px solid transparent; font-size: 14px; font-weight: 700; text-align: center; transition: background-color .16s, color .16s, border-color .16s; }
.button-primary { background: var(--red); color: var(--white); }
.button-primary:hover { background: var(--red-dark); }
.button-outline { border-color: #b6c2c8; background: var(--white); color: var(--navy); }
.button-outline:hover { border-color: var(--navy); background: var(--soft); }
.button-light { background: var(--white); color: var(--navy); }
.button-light:hover { background: #e9eef0; }
.button-quiet { border-color: transparent; background: transparent; color: var(--navy); }
.button-quiet:hover { border-color: #aebdc5; }
.button-whatsapp-outline { gap: 10px; border-color: #238456; background: var(--white); color: #17683f; }
.button-whatsapp-outline:hover { border-color: #196c45; background: #eaf5ef; }
.whatsapp-icon { width: 22px; height: 22px; flex: 0 0 auto; }
.company-facts { display: flex; gap: 0; margin: 38px 0 0; border-top: 1px solid #ced7dc; }
.company-facts div { min-width: 0; flex: 1; padding: 16px 15px 0; text-align: center; }
.company-facts div + div { border-left: 1px solid #ced7dc; }
.company-facts dt { color: #738791; font-size: 11px; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; }
.company-facts dd { margin: 2px 0 0; color: var(--navy-deep); font-size: 16px; font-weight: 750; }
.hero-products { width: 100%; min-width: 0; height: 412px; display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr); grid-template-rows: 1fr 1fr; gap: 12px; }
.hero-product { position: relative; overflow: hidden; border: 1px solid #dde3e6; background: var(--white); transition: border-color .16s, transform .16s, box-shadow .16s; }
.hero-product:hover { z-index: 1; border-color: #8fa3ad; box-shadow: 0 8px 24px #26343c12; transform: translateY(-2px); }
.hero-product-main { grid-row: span 2; }
.hero-product img { width: 100%; height: 100%; padding: 14px 23px 30px; object-fit: contain; transition: transform .18s; }
.hero-product:hover img { transform: scale(1.025); }
.hero-product-main img { padding: 20px 13px 27px; }
.hero-product span { position: absolute; left: 15px; bottom: 10px; display: inline-flex; align-items: center; gap: 8px; padding-right: 5px; background: var(--white); color: #506672; font-size: 12px; font-weight: 700; }
.hero-product b { color: var(--red); font-weight: 800; }

.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 26px; }
.section-heading h2 { margin: 0; color: var(--navy-deep); font-size: 30px; font-weight: 720; letter-spacing: -.025em; line-height: 1.2; }
.section-heading a { color: var(--navy); font-size: 14px; font-weight: 700; white-space: nowrap; }
.category-section { padding-block: 64px 70px; }
.category-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 13px; }
.category-card { min-height: 202px; display: flex; flex-direction: column; align-items: flex-start; padding: 15px 15px 14px; border: 1px solid var(--line); background: var(--white); text-align: left; transition: border-color .16s, transform .16s; }
.category-card:hover { border-color: #8da1ac; transform: translateY(-2px); }
.category-card img { width: 100%; height: 116px; margin-bottom: 10px; object-fit: contain; object-position: center; }
.category-card strong { color: var(--navy-deep); font-size: 15px; line-height: 1.3; }
.category-card small { margin-top: 2px; color: var(--muted); font-size: 12px; }

.catalogue-section { padding-block: 68px 78px; scroll-margin-top: 20px; border-bottom: 1px solid var(--line); background: #f7f8f8; }
.catalogue-heading { margin-bottom: 31px; }
.catalogue-heading p { margin: 10px 0 0; color: var(--muted); }
.catalogue-count { padding-bottom: 3px; color: var(--muted); font-size: 13px; white-space: nowrap; }
.catalogue-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 31px; align-items: start; }
.filter-panel { padding: 20px 0 16px; border: 1px solid var(--line); background: var(--white); }
.filter-title { padding: 0 19px 12px; color: var(--muted); font-size: 11px; font-weight: 800; letter-spacing: .065em; text-transform: uppercase; }
.filter-categories { display: flex; flex-direction: column; }
.filter-button { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 10px 19px; border: 0; background: transparent; color: #405763; font-size: 14px; text-align: left; }
.filter-button:hover { background: #f4f6f7; color: var(--navy); }
.filter-button[aria-pressed="true"] { padding-left: 16px; border-left: 3px solid var(--red); background: #fff2f2; color: var(--red); font-weight: 700; }
.filter-button small { color: #8a9aa3; font-size: 12px; }
.catalogue-controls { display: flex; gap: 13px; align-items: end; }
.search-field { min-width: 0; height: 50px; display: flex; flex: 1; align-items: center; gap: 11px; padding: 0 15px; border: 1px solid #cad4d9; background: var(--white); }
.search-field:focus-within { border-color: #37769a; }
.search-field svg { width: 18px; height: 18px; flex: 0 0 auto; color: #687f8b; }
.search-field input { width: 100%; min-width: 0; border: 0; outline: 0; background: transparent; color: var(--ink); font-size: 15px; }
.search-field input::placeholder { color: #82949e; }
.brand-field { height: 50px; display: flex; align-items: center; gap: 11px; padding: 0 12px 0 15px; border: 1px solid #cad4d9; background: var(--white); color: #617784; font-size: 13px; font-weight: 700; }
.brand-field select { min-width: 114px; max-width: 164px; border: 0; outline: 0; background: transparent; color: var(--navy); font-size: 14px; font-weight: 650; }
.result-row { min-height: 53px; display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.result-row p { margin: 0; color: var(--muted); font-size: 13px; }
.text-button { padding: 4px 0; border: 0; background: transparent; color: var(--navy); font-size: 13px; font-weight: 700; }
.product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 17px; }
.product-card { min-width: 0; display: flex; flex-direction: column; border: 1px solid var(--line); background: var(--white); }
.product-card:hover { border-color: #9eb0b9; }
.product-photo { aspect-ratio: 1 / 1; display: block; overflow: hidden; border-bottom: 1px solid #edf0f2; background: var(--white); }
.product-photo img { width: 100%; height: 100%; object-fit: contain; transition: transform .18s; }
.product-card:hover .product-photo img { transform: scale(1.025); }
.product-content { display: flex; flex: 1; flex-direction: column; padding: 17px 18px 19px; }
.product-brand { margin-bottom: 7px; color: #687d88; font-size: 11px; font-weight: 800; letter-spacing: .07em; line-height: 1.3; text-transform: uppercase; }
.product-title { margin: 0 0 9px; color: var(--navy-deep); font-size: 17px; font-weight: 720; line-height: 1.32; }
.product-title a:hover { color: var(--red); }
.product-description { min-height: 60px; display: -webkit-box; margin: 0 0 15px; overflow: hidden; color: #60747f; font-size: 14px; line-height: 1.5; -webkit-box-orient: vertical; -webkit-line-clamp: 3; }
.product-spec { min-height: 32px; margin: auto 0 14px; padding-top: 12px; border-top: 1px solid #e9eef0; color: #536a76; font-size: 12px; }
.product-link { display: inline-flex; align-items: center; gap: 7px; align-self: flex-start; color: var(--red); font-size: 13px; font-weight: 750; }
.product-link:hover { text-decoration: underline; }
.show-more { min-width: 210px; margin: 31px auto 0; }
.empty-state { padding: 52px 20px; border: 1px solid var(--line); background: var(--white); text-align: center; }
.empty-state h3 { margin: 0 0 6px; color: var(--navy); }
.empty-state p { margin: 0; color: var(--muted); }

.about-page-hero { border-bottom: 1px solid var(--line); background: #f3f5f6; }
.about-page-layout { min-height: 510px; display: grid; grid-template-columns: 270px minmax(0, 1fr); gap: 76px; align-items: center; padding-block: 70px; }
.about-page-mark { position: relative; width: 250px; height: 250px; overflow: hidden; border: 1px solid #d9e0e3; border-radius: 50%; background: var(--white); }
.about-page-mark img { position: absolute; top: 0; left: 50%; width: auto; max-width: none; height: 100%; transform: translateX(-50%); }
.about-page-copy h1 { max-width: 760px; margin-bottom: 25px; color: var(--navy-deep); font-size: clamp(42px, 4.7vw, 62px); font-weight: 730; letter-spacing: -.045em; line-height: 1.08; }
.about-page-copy p { max-width: 790px; margin-bottom: 13px; color: #536a76; line-height: 1.8; }
.about-page-copy .about-lead { color: #344b57; font-size: 18px; }
.principles-section { display: grid; grid-template-columns: minmax(240px, .7fr) minmax(0, 1.5fr); gap: 70px; padding-block: 78px 84px; }
.principles-heading h2 { margin-bottom: 14px; color: var(--navy-deep); font-size: 31px; letter-spacing: -.025em; line-height: 1.22; }
.principles-heading p { max-width: 410px; margin: 0; color: var(--muted); line-height: 1.7; }
.principles-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.principles-grid article { padding: 25px 24px 8px; border-left: 1px solid var(--line); }
.principles-grid article:first-child { border-left: 0; }
.principles-grid span { color: #9aa9b0; font-size: 11px; font-weight: 800; letter-spacing: .08em; }
.principles-grid h3 { margin: 10px 0 9px; color: var(--red); font-size: 19px; }
.principles-grid p { margin: 0; color: #5b707a; font-size: 14px; line-height: 1.7; }
.company-contact-section { padding-block: 76px; scroll-margin-top: 20px; border-top: 1px solid var(--line); background: #f7f8f8; }
.company-contact-layout { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(340px, .85fr); gap: 68px; align-items: center; }
.map-frame { position: relative; height: 380px; overflow: hidden; border: 1px solid #d4dade; background: #f1f3f2; box-shadow: 0 12px 34px #26343c18; }
.map-frame iframe { width: 100%; height: 100%; border: 0; }
.map-consent { min-height: 100%; display: flex; align-items: center; justify-content: center; flex-direction: column; padding: 38px; text-align: center; }
.map-consent > svg { width: 35px; height: 35px; margin-bottom: 14px; color: var(--red); }
.map-consent h3 { margin: 0 0 9px; color: var(--navy-deep); font-size: 22px; }
.map-consent p { max-width: 470px; margin: 0 0 19px; color: #526a76; font-size: 14px; line-height: 1.65; }
.map-consent .button { min-height: 43px; }
.map-consent > a { margin-top: 15px; color: var(--navy-deep); font-size: 13px; font-weight: 750; text-decoration: none; }
.map-consent > a:hover { color: var(--red); }
.map-noscript { padding: 15px; text-align: center; }
.company-contact-copy h2 { margin: 0 0 25px; padding-bottom: 18px; border-bottom: 1px solid #d7dfe2; color: var(--navy-deep); font-size: 32px; letter-spacing: -.025em; }
.contact-detail-row { display: grid; grid-template-columns: 24px minmax(0, 1fr); gap: 14px; align-items: start; }
.contact-detail-row > svg { width: 22px; height: 22px; margin-top: 3px; color: #56656d; }
.contact-detail-row address { color: #51646e; font-size: 15px; line-height: 1.8; }
.contact-maps-link { display: inline-flex; align-items: center; gap: 7px; margin: 14px 0 0 38px; color: var(--navy-deep); font-size: 14px; font-weight: 700; }
.contact-maps-link:hover { color: var(--red); text-decoration: underline; }
.contact-whatsapp { min-height: 60px; display: inline-flex; align-items: center; gap: 13px; margin-top: 23px; padding: 10px 18px; border: 1px solid #238456; background: #238456; color: var(--white); font-weight: 750; text-align: left; transition: background-color .16s, border-color .16s; }
.contact-whatsapp:hover { border-color: #196c45; background: #196c45; }
.contact-whatsapp span { display: flex; flex-direction: column; }
.contact-whatsapp small { color: #d9f4e5; font-size: 12px; font-weight: 600; }
.site-footer { scroll-margin-top: 20px; border-top: 1px solid #d8dddf; background: #f1f3f3; color: #465158; }
.footer-grid { display: grid; grid-template-columns: 1fr 1.35fr 1fr; gap: 68px; padding-block: 62px 54px; }
.footer-brand { color: var(--red); }
.footer-brand .brand-logo-mark { width: 37px; height: 37px; }
.footer-brand .brand-logo-name { font-size: 20px; }
.footer-grid p { max-width: 330px; margin: 20px 0 0; color: #667278; font-size: 14px; line-height: 1.7; }
.footer-grid > div:not(:first-child) { display: flex; flex-direction: column; gap: 10px; font-size: 15px; }
.footer-grid strong { margin-bottom: 5px; color: var(--navy-deep); font-size: 16px; }
.footer-grid a:not(.brand-logo):hover { color: var(--red); text-decoration: underline; }
.footer-grid address { color: #5d6a70; font-size: 14px; line-height: 1.75; }
.footer-contact-row { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 12px; align-items: start; }
.footer-contact-row > svg { width: 21px; height: 21px; margin-top: 3px; color: #596970; }
.footer-contact p { margin: 0 0 8px; color: #5d6a70; font-size: 14px; line-height: 1.6; }
.maps-link { margin-top: 4px; color: var(--navy-deep); font-weight: 700; }
.whatsapp-link { min-height: 54px; display: inline-flex; align-items: center; align-self: flex-start; gap: 11px; padding: 10px 16px; border: 1px solid #238456; background: #238456; color: var(--white); font-size: 15px; font-weight: 750; line-height: 1.25; text-align: left; transition: background-color .16s, border-color .16s; }
.whatsapp-link svg { width: 23px; height: 23px; flex: 0 0 auto; }
.whatsapp-link span { display: flex; flex-direction: column; }
.whatsapp-link small { color: #d9f4e5; font-size: 11px; font-weight: 650; letter-spacing: .04em; }
.whatsapp-link:hover { border-color: #196c45; background: #196c45; }
.footer-bottom { display: flex; justify-content: space-between; padding-block: 22px 27px; border-top: 1px solid #d5dadd; color: #6c777d; font-size: 13px; }

.detail-view { padding-block: 27px 86px; }
.breadcrumbs { display: flex; gap: 8px; margin-bottom: 33px; color: var(--muted); font-size: 13px; }
.breadcrumbs a:hover { color: var(--red); }
.detail-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 60px; align-items: start; }
.detail-image { border: 1px solid var(--line); background: var(--white); }
.detail-image img { width: 100%; aspect-ratio: 1 / 1; object-fit: contain; }
.detail-info { padding-top: 16px; }
.detail-brand { margin-bottom: 14px; color: var(--red); font-size: 12px; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
.detail-info h1 { margin-bottom: 18px; color: var(--navy-deep); font-size: clamp(34px, 3.4vw, 51px); letter-spacing: -.04em; line-height: 1.1; }
.detail-description { margin-bottom: 31px; color: #526a76; font-size: 18px; line-height: 1.65; }
.detail-actions { padding-top: 25px; border-top: 1px solid var(--line); }
.detail-actions p { margin: 12px 0 0; color: #758a95; font-size: 13px; }
.whatsapp-product-button { background: #238456; color: var(--white); }
.whatsapp-product-button:hover { background: #196c45; }
.specification-area { display: grid; grid-template-columns: .7fr 1.3fr; gap: 70px; margin-top: 69px; padding-top: 40px; border-top: 1px solid var(--line); }
.specification-area h2 { margin-bottom: 9px; color: var(--navy-deep); font-size: 25px; }
.specification-area > div > p { max-width: 390px; color: var(--muted); font-size: 13px; }
.specification-list { margin: 0; border-top: 1px solid var(--line); }
.specification-list > div { display: grid; grid-template-columns: 40% 1fr; border-bottom: 1px solid var(--line); }
.specification-list dt, .specification-list dd { margin: 0; padding: 12px 14px; font-size: 14px; }
.specification-list dt { color: var(--muted); }
.specification-list dd { color: var(--navy-deep); font-weight: 650; }
.related-area { margin-top: 72px; }

.whatsapp-dialog::backdrop { background: #24282bb8; }
.dialog-header { display: flex; align-items: start; justify-content: space-between; gap: 20px; padding: 23px 25px 18px; border-bottom: 1px solid var(--line); }
.dialog-product-name { display: block; margin-bottom: 3px; color: var(--red); font-size: 11px; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; }
.dialog-header h2 { margin: 0; color: var(--navy-deep); font-size: 25px; }
.dialog-close { width: 35px; height: 35px; border: 1px solid var(--line); background: var(--white); color: var(--navy); font-size: 24px; line-height: 1; }
.dialog-close:hover { background: var(--soft); }
.whatsapp-dialog { width: min(510px, calc(100% - 30px)); max-height: calc(100vh - 32px); padding: 0; overflow: auto; border: 0; color: var(--ink); box-shadow: 0 18px 70px #11181c55; }
.whatsapp-dialog-body { padding: 22px 25px 25px; }
.whatsapp-dialog-body > p { margin-bottom: 18px; color: var(--muted); font-size: 14px; }
.whatsapp-message-preview { padding: 15px 16px; border: 1px solid #dfe4e1; background: #f5f7f6; }
.whatsapp-message-preview span { display: block; margin-bottom: 6px; color: #6c7772; font-size: 11px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.whatsapp-message-preview p { margin: 0; color: #3f4a45; font-size: 14px; line-height: 1.65; }
.whatsapp-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 21px; }
.whatsapp-continue { background: #238456; color: var(--white); }
.whatsapp-continue:hover { background: #196c45; }

@media (max-width: 1080px) {
  .hero-layout { grid-template-columns: 1fr .88fr; gap: 32px; }
  .hero h1 { font-size: 48px; }
  .catalogue-layout { grid-template-columns: 195px minmax(0, 1fr); gap: 21px; }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .category-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .about-page-layout { grid-template-columns: 210px minmax(0, 1fr); gap: 48px; }
  .about-page-mark { width: 205px; height: 205px; }
  .principles-section { grid-template-columns: 1fr; gap: 35px; }
  .company-contact-layout { gap: 40px; }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-contact { grid-column: 1 / -1; }
}

@media (max-width: 790px) {
  .container { width: min(calc(100% - 32px), var(--max)); }
  .header-inner { min-height: 69px; gap: 12px; }
  .brand-logo-name { font-size: 18px; }
  .brand-logo-mark { width: 30px; height: 30px; }
  .menu-toggle { display: inline-flex; align-items: center; gap: 9px; margin-left: auto; padding: 8px 0; }
  .header-contact { display: none; }
  .primary-nav { position: absolute; top: 100%; left: 0; right: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 12px 16px 17px; border-bottom: 1px solid var(--line); background: var(--white); box-shadow: 0 12px 20px #20282d12; }
  .primary-nav.is-open { display: flex; }
  .primary-nav a { padding: 12px 5px; border-bottom: 1px solid #edf0f1; }
  .hero-layout { min-height: 0; display: block; padding-block: 48px 30px; }
  .hero h1 { max-width: 620px; font-size: clamp(38px, 9vw, 54px); }
  .hero-copy > p { font-size: 17px; }
  .hero-products { height: 270px; margin-top: 41px; }
  .category-section, .catalogue-section { padding-block: 49px; }
  .category-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .category-card { min-height: 182px; }
  .category-card img { height: 99px; }
  .catalogue-layout { display: block; }
  .filter-panel { margin-bottom: 17px; padding: 0; border: 0; background: transparent; }
  .filter-title { display: none; }
  .filter-categories { flex-direction: row; gap: 7px; overflow: auto; padding-bottom: 4px; }
  .filter-button, .filter-button[aria-pressed="true"] { width: auto; padding: 7px 11px; border: 1px solid var(--line); background: var(--white); font-size: 13px; white-space: nowrap; }
  .filter-button[aria-pressed="true"] { border-color: var(--red); color: var(--red); }
  .filter-button small { display: none; }
  .catalogue-controls { flex-wrap: wrap; }
  .search-field { flex-basis: 100%; }
  .brand-field { width: 100%; justify-content: space-between; }
  .brand-field select { max-width: none; flex: 1; }
  .about-page-layout { min-height: 0; grid-template-columns: 145px minmax(0, 1fr); gap: 32px; padding-block: 52px; }
  .about-page-mark { width: 140px; height: 140px; }
  .about-page-copy h1 { font-size: 39px; }
  .principles-section { padding-block: 56px; }
  .principles-grid { grid-template-columns: 1fr; }
  .principles-grid article, .principles-grid article:first-child { padding: 22px 0; border-bottom: 1px solid var(--line); border-left: 0; }
  .company-contact-section { padding-block: 52px; }
  .company-contact-layout { grid-template-columns: 1fr; gap: 36px; }
  .map-frame { height: 340px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
  .footer-contact { grid-column: 1 / -1; }
  .detail-layout, .specification-area { grid-template-columns: 1fr; gap: 23px; }
  .detail-info { padding-top: 0; }
  .specification-area { margin-top: 49px; }
  .related-area { margin-top: 51px; }
}

@media (max-width: 600px) {
  .brand-logo-name { font-size: 16px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .company-facts { display: grid; grid-template-columns: repeat(3, 1fr); }
  .company-facts div { min-width: 0; padding: 14px 6px 0; }
  .company-facts dd { font-size: 14px; }
  .hero-products { height: 220px; gap: 7px; }
  .hero-product span { left: 8px; bottom: 6px; font-size: 10px; }
  .section-heading { align-items: flex-start; }
  .section-heading h2 { font-size: 27px; }
  .section-heading a { padding-top: 5px; }
  .category-card { min-height: 158px; padding: 11px; }
  .category-card img { height: 82px; }
  .category-card strong { font-size: 14px; }
  .product-grid, .related-area .product-grid { grid-template-columns: 1fr; }
  .product-description { min-height: 0; -webkit-line-clamp: 4; }
  .product-spec { min-height: 0; }
  .catalogue-heading { display: block; }
  .catalogue-count { display: block; margin-top: 12px; }
  .about-page-layout { grid-template-columns: 1fr; gap: 28px; }
  .about-page-mark { width: 145px; height: 145px; }
  .about-page-copy h1 { font-size: 37px; }
  .about-page-copy .about-lead { font-size: 17px; }
  .principles-heading h2, .company-contact-copy h2 { font-size: 27px; }
  .map-frame { height: 300px; }
  .contact-maps-link { margin-left: 0; }
  .contact-whatsapp { width: 100%; justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; gap: 27px; }
  .footer-contact { grid-column: auto; }
  .footer-bottom { flex-direction: column; gap: 5px; }
  .whatsapp-actions { align-items: stretch; flex-direction: column-reverse; }
  .whatsapp-actions .button { width: 100%; }
  .detail-view { padding-top: 16px; }
  .detail-info h1 { font-size: 36px; }
  .detail-description { font-size: 16px; }
  .specification-list > div { grid-template-columns: 38% 1fr; }
}

@media (max-width: 390px) {
  .brand-logo-name { font-size: 14px; }
  .brand-logo-mark { width: 27px; height: 27px; }
  .menu-toggle { font-size: 13px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}