:root {
  --paper: #f5f5f7;
  --paper-deep: #e8e8ed;
  --surface: #fff;
  --surface-raised: rgba(255, 255, 255, .82);
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --green: #315f56;
  --green-dark: #183a33;
  --copper: #b74629;
  --metal: #d2d2d7;
  --line: rgba(29, 29, 31, .12);
  --line-strong: rgba(29, 29, 31, .22);
  --shadow-soft: 0 12px 34px rgba(0, 0, 0, .08);
  --shadow-raised: 0 20px 54px rgba(0, 0, 0, .14);
  --radius: 8px;
  --shell: min(1560px, calc(100vw - 64px));
  --utility-height: 36px;
  --nav-height: 76px;
  --header-height: calc(var(--utility-height) + var(--nav-height));
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body { min-height: 100vh; display: flex; flex-direction: column; margin: 0; color: var(--ink); background: var(--paper); font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Noto Sans CJK SC", "Helvetica Neue", sans-serif; font-size: 16px; line-height: 1.55; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
main { flex: 1 0 auto; }
body, button, input, select, textarea { letter-spacing: 0; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; }
button, a, input, select, textarea { outline-offset: 3px; }
:focus-visible { outline: 3px solid rgba(183, 70, 41, .45); }
.icon-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.ui-icon { width: 1em; height: 1em; display: block; flex: 0 0 auto; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.shell { width: var(--shell); margin-inline: auto; }
.skip-link { position: fixed; z-index: 100; top: 8px; left: 8px; padding: 10px 14px; background: var(--ink); color: #fff; transform: translateY(-160%); }
.skip-link:focus { transform: none; }
.visually-hidden { position: absolute !important; width: 1px !important; height: 1px !important; overflow: hidden !important; clip: rect(0 0 0 0) !important; clip-path: inset(50%) !important; white-space: nowrap !important; }

.site-header { position: sticky; z-index: 20; top: 0; background: rgba(245, 245, 247, .78); border-bottom: 1px solid var(--line); box-shadow: 0 1px 0 rgba(255, 255, 255, .7); backdrop-filter: blur(24px) saturate(180%); -webkit-backdrop-filter: blur(24px) saturate(180%); }
.utility-nav { min-height: var(--utility-height); display: flex; align-items: center; justify-content: space-between; font-size: 12px; text-transform: uppercase; }
.utility-brand { font-weight: 700; letter-spacing: 0; }
.utility-actions { display: flex; align-items: center; height: var(--utility-height); }
.utility-actions a { min-height: 32px; display: flex; align-items: center; justify-content: center; gap: 7px; margin-left: 4px; padding-inline: 10px; border-radius: 6px; color: var(--muted); transition: color 140ms ease, background-color 140ms ease, transform 100ms ease-out; }
.utility-actions .utility-icon-link { width: 34px; padding-inline: 0; font-size: 17px; }
.utility-order-link, .utility-language-link { font-size: 11px; }
.utility-order-link .ui-icon, .utility-language-link .ui-icon { font-size: 15px; }
.utility-market-links { display: inline-flex; gap: 2px; align-items: center; }
.utility-market-links a { padding: 3px 5px; color: inherit; font-size: 10px; text-decoration: none; border-bottom: 1px solid transparent; }
.utility-market-links a[aria-current="true"] { border-bottom-color: currentColor; font-weight: 700; }
.utility-cart-link { position: relative; }
.utility-cart-link > span { position: absolute; top: -2px; right: -3px; min-width: 16px; height: 16px; display: grid; place-items: center; border: 2px solid var(--paper); border-radius: 999px; padding-inline: 3px; color: #fff; background: var(--copper); font-size: 9px; font-weight: 700; line-height: 1; }
.utility-actions a:hover { color: var(--ink); background: rgba(29, 29, 31, .06); }
.utility-actions a[aria-current="page"] { color: var(--ink); background: rgba(29, 29, 31, .085); font-weight: 650; }
.primary-nav-wrap { border-top: 1px solid rgba(29, 29, 31, .08); background: transparent; }
.primary-nav { min-height: var(--nav-height); display: grid; grid-template-columns: 1fr auto; align-items: center; }
.primary-links { display: flex; align-items: center; gap: 4px; min-height: var(--nav-height); }
.primary-links a { display: grid; place-items: center; min-height: 42px; padding-inline: clamp(14px, 2vw, 26px); border-radius: 7px; font-size: 14px; transition: color 140ms ease, background-color 140ms ease, transform 100ms ease-out; }
.primary-links a:hover { background: rgba(29, 29, 31, .065); }
.primary-links a[aria-current="page"] { background: rgba(49, 95, 86, .11); color: var(--green-dark); font-weight: 650; }
.inquiry-link { min-height: 44px; display: grid; place-items: center; padding-inline: 24px; border-radius: var(--radius); color: #fff; background: var(--green); font-weight: 650; box-shadow: 0 6px 18px rgba(24, 58, 51, .18); transition: background-color 140ms ease, box-shadow 140ms ease, transform 100ms ease-out; }
.inquiry-link:hover { background: var(--green-dark); }
.inquiry-link[aria-current="page"] { background: var(--green-dark); box-shadow: 0 0 0 3px rgba(49, 95, 86, .2); }
.nav-toggle { min-width: 48px; min-height: 48px; display: none; place-items: center; border: 0; border-radius: 6px; background: transparent; font-size: 22px; cursor: pointer; }

.home-hero { position: relative; height: clamp(560px, calc(100vh - var(--header-height) - 44px), 720px); min-height: 560px; overflow: hidden; background: var(--green-dark); color: #fff; }
.hero-image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-scrim { position: absolute; inset: 0; background: rgba(8, 15, 12, .42); }
.hero-content { position: relative; min-height: inherit; display: grid; align-content: center; padding-block: 80px 120px; }
.section-number { margin: 0 0 34px; font-size: 12px; letter-spacing: 0; text-transform: uppercase; }
.brand-wordmark { max-width: 960px; margin: 0; font-family: "Songti SC", "STSong", serif; font-size: clamp(64px, 7vw, 116px); font-weight: 600; line-height: 1; }
.hero-category { max-width: 720px; margin: 32px 0 0; font-size: 24px; }
.hero-intro { max-width: 620px; margin: 14px 0 0; color: rgba(255, 255, 255, .78); }
.hero-actions { display: flex; gap: 10px; margin-top: 42px; }
.action-primary, .action-secondary { min-height: 50px; display: inline-grid; place-items: center; padding: 0 24px; border-radius: var(--radius); font-weight: 650; transition: color 140ms ease, background-color 140ms ease, border-color 140ms ease, box-shadow 140ms ease, transform 100ms ease-out; }
.action-primary { border: 0; background: var(--copper); color: #fff; box-shadow: 0 7px 20px rgba(183, 70, 41, .2); cursor: pointer; }
.action-primary:hover { background: #9f351f; box-shadow: 0 9px 24px rgba(159, 53, 31, .26); }
.action-secondary { border: 1px solid currentColor; }
.action-secondary:hover { background: rgba(255, 255, 255, .1); }

.section-block { padding-block: 92px; }
.section-heading { display: grid; grid-template-columns: 80px 1fr auto; align-items: baseline; gap: 24px; padding-bottom: 24px; border-bottom: 1px solid var(--line-strong); }
.section-heading p { margin: 0; font-size: 12px; color: var(--muted); }
.section-heading h2 { margin: 0; font-family: inherit; font-size: 34px; font-weight: 650; }
.section-heading > a { font-size: 13px; text-decoration: underline; text-underline-offset: 5px; }
.category-rail { display: grid; grid-template-columns: repeat(2, 1fr); column-gap: 28px; }
.category-rail a { min-height: 136px; display: grid; grid-template-columns: 60px 1fr auto; align-items: center; gap: 18px; padding: 26px 20px; border-bottom: 1px solid var(--line); border-radius: var(--radius); transition: background-color 140ms ease, transform 100ms ease-out; }
.category-rail span { font-size: 11px; color: var(--muted); }
.category-rail strong { font-family: inherit; font-size: 26px; font-weight: 600; }
.category-rail i { font-style: normal; font-size: 22px; }
.category-rail a:hover { background: var(--paper-deep); }

.product-section { background: var(--surface); }
.product-related { border-top: 1px solid var(--line); }
.product-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px 20px; margin-top: 36px; }
.product-tile { min-width: 0; padding: 0; background: transparent; }
.product-media { position: relative; display: block; aspect-ratio: 4 / 5; overflow: hidden; border-radius: var(--radius); background: var(--paper-deep); box-shadow: 0 1px 0 rgba(0, 0, 0, .04); transition: box-shadow 180ms ease, transform 120ms ease-out; }
.product-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 220ms ease-out; }
.product-media:hover { box-shadow: var(--shadow-soft); transform: translateY(-2px); }
.product-media:hover img { transform: scale(1.018); }
.media-empty { position: absolute; inset: 0; display: grid; place-items: center; color: var(--muted); font-size: 13px; letter-spacing: 0; }
.gallery-av { display: grid; gap: 12px; margin-top: 14px; }
.gallery-av:empty { display: none; }
.gallery-av figure { margin: 0; padding: 12px; border: 1px solid var(--line); background: var(--paper); }
.gallery-av audio { display: block; width: 100%; min-height: 54px; }
.gallery-video-frame { width: 100%; aspect-ratio: 16 / 9; overflow: hidden; background: #111; }
.gallery-video-frame video { display: block; width: 100%; height: 100%; object-fit: contain; }
.gallery-av figcaption { display: grid; gap: 4px; margin-top: 8px; padding-top: 10px; color: var(--muted); font-size: 12px; }
.gallery-av figcaption strong { color: var(--ink); font-size: 15px; }
.product-index { display: flex; justify-content: space-between; gap: 12px; margin-top: 16px; color: var(--muted); font-size: 11px; text-transform: uppercase; }
.product-tile h3 { min-height: 54px; margin: 12px 0 6px; font-family: inherit; font-size: 21px; font-weight: 600; line-height: 1.3; }
.product-tile > p { min-height: 50px; margin: 0; color: var(--muted); font-size: 13px; }
.product-actions { min-height: 48px; display: flex; align-items: end; justify-content: space-between; gap: 12px; margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--line); font-size: 13px; }
.product-actions a { color: var(--copper); font-weight: 650; }

.solutions-band { background: var(--green); color: #fff; }
.solutions-band .section-heading { border-color: rgba(255, 255, 255, .4); }
.solutions-band .section-heading p { color: rgba(255, 255, 255, .62); }
.solution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 36px; }
.solution-entry { position: relative; min-height: 320px; display: grid; align-items: end; overflow: hidden; border: 1px solid rgba(255, 255, 255, .24); border-radius: var(--radius); background: var(--green-dark); box-shadow: 0 12px 28px rgba(0, 0, 0, .12); transition: box-shadow 180ms ease, transform 120ms ease-out; }
.solution-entry > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 220ms ease-out; }
.solution-entry-scrim { position: absolute; inset: 0; background: rgba(7, 20, 16, .54); }
.solution-entry-copy { position: relative; z-index: 1; min-height: 100%; display: flex; flex-direction: column; justify-content: end; padding: 28px; }
.solution-grid span { font-size: 11px; letter-spacing: 0; }
.solution-grid h3 { margin: 0; font-family: inherit; font-size: 28px; font-weight: 600; }
.solution-grid p { margin: 10px 34px 0 0; color: rgba(255, 255, 255, .74); font-size: 13px; }
.solution-grid i { position: absolute; right: 28px; bottom: 28px; font-size: 22px; font-style: normal; }
.solution-entry:hover { box-shadow: 0 18px 38px rgba(0, 0, 0, .2); transform: translateY(-2px); }
.solution-entry:hover > img { transform: scale(1.018); }
.cooperation-band { display: flex; justify-content: space-between; align-items: end; border-bottom: 1px solid var(--line); }
.cooperation-band p { margin: 0 0 20px; color: var(--muted); font-size: 12px; }
.cooperation-band h2 { max-width: 820px; margin: 0; font-family: "Songti SC", "STSong", serif; font-size: 46px; font-weight: 500; line-height: 1.18; }
.knowledge-lines a { min-height: 90px; display: grid; grid-template-columns: 80px 1fr auto; align-items: center; border-bottom: 1px solid var(--line); }
.knowledge-lines span { color: var(--muted); font-size: 12px; }
.knowledge-lines i { font-style: normal; font-size: 24px; }

.listing-page { padding-block: 70px 100px; }
.listing-header { display: grid; grid-template-columns: 1fr 2fr; gap: 24px; padding-bottom: 56px; }
.listing-header .section-number { grid-column: 1 / -1; margin-bottom: 8px; color: var(--muted); }
.listing-header h1 { margin: 0; font-family: inherit; font-size: 60px; font-weight: 650; line-height: 1.04; }
.listing-header > p:last-child { max-width: 580px; margin: 0; color: var(--muted); }
.catalog-layout { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 32px; border-top: 1px solid var(--line-strong); padding-top: 28px; }
.filters { position: sticky; top: calc(var(--header-height) + 24px); align-self: start; padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface-raised); box-shadow: 0 10px 28px rgba(0, 0, 0, .05); backdrop-filter: blur(18px) saturate(150%); -webkit-backdrop-filter: blur(18px) saturate(150%); }
.filters h2 { margin: 0 0 22px; font-size: 16px; }
.filters label { display: grid; gap: 7px; margin-bottom: 14px; font-size: 13px; }
.filters input[type="search"], .filters input[type="number"] { width: 100%; min-height: 46px; border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--surface); padding: 0 12px; }
.filters input[type="number"] { appearance: textfield; -moz-appearance: textfield; }
.filters input[type="number"]::-webkit-inner-spin-button, .filters input[type="number"]::-webkit-outer-spin-button { margin: 0; appearance: none; -webkit-appearance: none; }
.filters fieldset { margin: 24px 0; padding: 18px 0 8px; border: 0; border-top: 1px solid var(--line); }
.filters legend { padding: 0 10px 0 0; font-size: 12px; color: var(--muted); }
.filters fieldset label { display: flex; align-items: center; min-height: 34px; }
.filters .price-range { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.filters .price-range label { min-width: 0; display: grid; align-items: stretch; gap: 6px; color: var(--muted); font-size: 11px; }
.filters .category-children { margin: 0; padding-left: 22px; }
.filters .category-children .category-option { color: var(--muted); }
.filters button { width: 100%; min-height: 46px; border: 0; border-radius: var(--radius); background: var(--green); color: #fff; cursor: pointer; transition: background-color 140ms ease, transform 100ms ease-out; }
.filters form > a { display: block; margin-top: 14px; text-align: center; font-size: 12px; text-decoration: underline; }
.results-meta { height: 46px; display: flex; justify-content: space-between; align-items: start; color: var(--muted); font-size: 12px; }
.catalog-results .product-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 0; }
.pagination { display: flex; gap: 6px; margin-top: 38px; }
.pagination a { min-width: 46px; min-height: 46px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); transition: background-color 140ms ease, transform 100ms ease-out; }
.pagination a[aria-current="page"] { background: var(--ink); color: #fff; }
.comparison-form { margin: 0; }
.comparison-toolbar { min-height: 50px; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 14px; padding: 0 0 10px; border-bottom: 1px solid var(--line); font-size: 12px; }
.comparison-toolbar span { white-space: nowrap; }
.comparison-toolbar b { color: var(--green); font-size: 16px; }
.comparison-toolbar small { color: var(--muted); text-align: right; }
.comparison-toolbar button { min-height: 38px; border: 1px solid var(--ink); border-radius: var(--radius); background: var(--ink); color: #fff; padding: 0 16px; cursor: pointer; }
.comparison-toolbar button:disabled { border-color: var(--line); background: var(--paper-deep); color: var(--muted); cursor: not-allowed; }
.comparison-option { min-width: 0; display: flex; flex-direction: column; }
.comparison-select { min-height: 42px; display: flex; align-items: center; gap: 8px; margin: 0 0 10px; padding: 0 12px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); font-size: 12px; }
.comparison-select input { width: 16px; height: 16px; flex: 0 0 16px; margin: 0; accent-color: var(--green); }
.comparison-select input:disabled + span { color: var(--muted); }
.comparison-option .product-tile { flex: 1; margin-top: 0; }
.compare-page { padding-top: 22px; padding-bottom: 76px; }
.compare-heading { grid-template-columns: minmax(0, 1fr) minmax(280px, .8fr); }
.compare-scroll { max-width: 100%; overflow-x: auto; border-top: 1px solid var(--ink); outline-offset: 4px; }
.compare-table { width: 100%; min-width: 820px; border-collapse: collapse; table-layout: fixed; }
.compare-table th, .compare-table td { min-width: 0; padding: 17px 14px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; overflow-wrap: anywhere; }
.compare-table th:first-child { width: 158px; background: var(--paper-deep); color: var(--muted); font-size: 12px; font-weight: 500; }
.compare-table th:last-child, .compare-table td:last-child { border-right: 0; }
.compare-table thead th { padding-top: 20px; padding-bottom: 20px; background: var(--paper); }
.compare-table thead th a { display: grid; gap: 5px; }
.compare-table thead th span { color: var(--muted); font-size: 11px; }
.compare-table thead th strong { font-family: "Songti SC", "STSong", serif; font-size: 20px; font-weight: 500; }
.compare-specifications dl { margin: 0; }
.compare-specifications dl div { display: grid; gap: 4px; padding: 9px 0; border-bottom: 1px solid var(--line); }
.compare-specifications dl div:first-child { padding-top: 0; }
.compare-specifications dl div:last-child { border-bottom: 0; }
.compare-specifications dt { color: var(--muted); font-size: 11px; }
.compare-specifications dd { margin: 0; font-size: 13px; }
.compare-back { margin-top: 28px; }

.detail-page { padding-block: 24px 110px; }
.breadcrumbs { min-height: 54px; display: flex; align-items: center; gap: 12px; color: var(--muted); font-size: 12px; border-bottom: 1px solid var(--line); }
.product-detail { display: grid; grid-template-columns: minmax(0, 7fr) minmax(380px, 5fr); gap: clamp(40px, 5vw, 90px); padding-top: 42px; }
.gallery-main { position: relative; aspect-ratio: 4 / 5; overflow: hidden; border-radius: var(--radius); background: var(--paper-deep); }
.gallery-main img { width: 100%; height: 100%; object-fit: contain; }
.gallery-thumbs { display: flex; gap: 10px; margin-top: 12px; }
.gallery-thumbs button { width: 74px; aspect-ratio: 4 / 5; overflow: hidden; border: 1px solid var(--line); border-radius: 6px; padding: 0; background: transparent; cursor: pointer; transition: border-color 140ms ease, transform 100ms ease-out; }
.gallery-thumbs button[aria-current="true"] { border-color: var(--copper); }
.gallery-thumbs img { width: 100%; height: 100%; object-fit: cover; }
.product-summary { padding-top: 18px; }
.product-code { margin: 0; color: var(--muted); font-size: 12px; text-transform: uppercase; }
.product-code b { font-weight: inherit; }
.product-code span + b:not(:empty)::before { content: " / "; }
.product-summary h1 { margin: 24px 0 18px; font-family: "Songti SC", "STSong", serif; font-size: 52px; font-weight: 600; line-height: 1.1; }
.product-lede { max-width: 560px; color: var(--muted); font-size: 18px; }
.product-unavailable { margin-top: 30px; padding: 22px 0 0; border-top: 1px solid var(--ink); }
.product-unavailable > span { color: var(--copper); font-size: 11px; font-weight: 700; text-transform: uppercase; }
.product-unavailable h2 { margin: 8px 0 6px; font-family: inherit; font-size: 20px; font-weight: 650; }
.product-unavailable > p { max-width: 520px; margin: 0; color: var(--muted); font-size: 14px; }
.replacement-product { min-height: 104px; display: grid; grid-template-columns: 64px 1fr auto; align-items: center; gap: 16px; margin-top: 22px; padding: 12px; border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--surface); transition: border-color 140ms ease, box-shadow 180ms ease, transform 100ms ease-out; }
.replacement-product > img, .replacement-product > i { position: relative; width: 64px; height: 80px; object-fit: cover; overflow: hidden; border-radius: 5px; background: var(--paper-deep); }
.replacement-product > span { min-width: 0; display: grid; gap: 2px; }
.replacement-product small, .replacement-product b { color: var(--muted); font-size: 11px; font-weight: 500; }
.replacement-product strong { overflow-wrap: anywhere; font-size: 16px; }
.replacement-product > .ui-icon { color: var(--copper); font-size: 19px; }
.replacement-product:hover { border-color: var(--copper); box-shadow: var(--shadow-soft); transform: translateY(-1px); }
.product-facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; margin: 30px 0 0; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--line); }
.product-facts div { min-width: 0; padding: 14px 16px; background: var(--surface); }
.product-facts dt { color: var(--muted); font-size: 11px; }
.product-facts dd { margin: 4px 0 0; overflow-wrap: anywhere; font-size: 14px; font-weight: 600; }
.price-block { display: grid; grid-template-columns: 1fr auto; gap: 6px 24px; margin-top: 34px; padding-block: 20px; border-block: 1px solid var(--line); }
.price-block span, .price-block small { color: var(--muted); font-size: 12px; }
.price-block strong { grid-row: 1 / span 2; grid-column: 2; font-size: 24px; }
.product-options { display: grid; gap: 18px; margin-top: 28px; }
.product-options fieldset { min-width: 0; margin: 0; padding: 0; border: 0; }
.product-options legend { margin-bottom: 8px; color: var(--muted); font-size: 12px; }
.product-options fieldset > div { display: flex; flex-wrap: wrap; gap: 8px; }
.product-options button { min-width: 48px; min-height: 38px; padding: 8px 14px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); color: var(--ink); }
.product-options button[aria-pressed="true"] { border-color: var(--ink); box-shadow: inset 0 0 0 1px var(--ink); }
.product-options button:disabled { opacity: .4; }
.conversion-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-top: 26px; }
.conversion-actions .action-secondary { color: var(--ink); }
.channel-list { margin-top: 34px; }
.channel-list h2 { font-size: 14px; }
.channel-list a { min-height: 52px; display: flex; align-items: center; gap: 12px; border-top: 1px solid var(--line); }
.channel-list a:last-child { border-bottom: 1px solid var(--line); }
.channel-icon { position: relative; width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid var(--line); }
.channel-icon img { width: 24px; height: 24px; object-fit: contain; }
.channel-icon .media-empty { font-size: 15px; letter-spacing: 0; }
.channel-external { margin-left: auto; color: var(--muted); font-size: 15px; font-style: normal; }
.product-copy { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; margin-top: 60px; border-top: 1px solid var(--ink); }
.product-copy h2 { margin-top: 0; font-family: "Songti SC", "STSong", serif; font-size: 32px; font-weight: 500; }
.product-copy dl { margin: 0; }
.product-copy dl div { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; padding-block: 14px; border-top: 1px solid var(--line); }
.product-copy dt { color: var(--muted); }
.product-copy dd { margin: 0; }
.product-support { margin-top: 0; border-top-color: var(--line-strong); }

.content-index { padding-block: 82px 120px; }
.content-index-header { display: grid; grid-template-columns: minmax(280px, .8fr) 1.2fr; gap: 28px; padding-bottom: 64px; }
.content-index-header .section-number { grid-column: 1 / -1; margin-bottom: 0; color: var(--muted); }
.content-index-header h1, .content-detail-header h1, .content-landing-header h1 { margin: 0; font-family: "Songti SC", "STSong", serif; font-size: clamp(52px, 6vw, 92px); font-weight: 500; line-height: 1.06; }
.content-index-header > p:last-child, .content-detail-header > p:last-child, .content-landing-header > p:last-child { max-width: 640px; margin: 12px 0 0; color: var(--muted); font-size: 18px; }
.content-list { border-top: 1px solid var(--ink); }
.content-row { min-height: 190px; display: grid; grid-template-columns: 80px minmax(0, 1fr) 48px; gap: 24px; align-items: center; border-bottom: 1px solid var(--line); }
.content-row > span, .content-row div > p:first-child { color: var(--muted); font-size: 11px; text-transform: uppercase; }
.content-row h2 { margin: 8px 0; font-family: "Songti SC", "STSong", serif; font-size: 32px; font-weight: 500; line-height: 1.18; }
.content-row div > p:last-child { max-width: 820px; margin: 0; color: var(--muted); }
.content-row-action { width: 48px; height: 48px; display: grid; place-items: center; border: 1px solid var(--line); font-size: 20px; }
.content-detail { padding-bottom: 120px; }
.content-detail-header, .content-landing-header { max-width: 1240px; padding-block: 74px 64px; }
.content-detail-header h1, .content-landing-header h1 { max-width: 1100px; }
.content-cover, .content-landing-cover { position: relative; aspect-ratio: 16 / 9; margin: 0; overflow: hidden; background: var(--paper-deep); }
.content-cover img, .content-landing-cover img { width: 100%; height: 100%; object-fit: cover; }
.content-reading-layout { display: grid; grid-template-columns: minmax(180px, 1fr) minmax(0, 3fr); gap: clamp(36px, 7vw, 120px); padding-block: 82px; border-bottom: 1px solid var(--ink); }
.content-reading-layout aside { display: flex; flex-direction: column; gap: 8px; color: var(--muted); font-size: 12px; text-transform: uppercase; }
.content-reading-layout aside strong { color: var(--ink); font-size: 14px; }
.content-prose { max-width: 820px; font-family: "Songti SC", "STSong", serif; font-size: 21px; line-height: 1.9; }
.content-prose p { margin: 0 0 1.5em; white-space: pre-line; }
.content-related { padding-top: 82px; }
.content-related > a { min-height: 92px; display: grid; grid-template-columns: 180px 1fr auto; gap: 24px; align-items: center; border-bottom: 1px solid var(--line); }
.content-related > a span { color: var(--muted); font-size: 12px; }
.content-related > a strong { font-family: "Songti SC", "STSong", serif; font-size: 24px; font-weight: 500; }
.content-related > a i { font-style: normal; font-size: 20px; }
.content-landing { padding-bottom: 120px; }
.content-landing-cover { width: 100%; }
.document-page { max-width: 1240px; padding-block: 76px 120px; }
.document-header { max-width: 900px; padding-bottom: 52px; border-bottom: 1px solid var(--line); }
.document-header h1 { max-width: 820px; margin: 18px 0 0; font-family: "Songti SC", "STSong", serif; font-size: 64px; font-weight: 500; line-height: 1.08; letter-spacing: 0; }
.document-header > p:not(.section-number) { max-width: 680px; margin: 20px 0 0; color: var(--muted); font-size: 18px; line-height: 1.75; }
.document-header time { display: block; margin-top: 28px; color: var(--muted); font-size: 13px; }
.document-layout { display: grid; grid-template-columns: 220px minmax(0, 720px); gap: 72px; padding-top: 56px; }
.document-layout > aside { display: flex; flex-direction: column; gap: 8px; color: var(--muted); font-size: 12px; }
.document-layout > aside strong { color: var(--ink); font-size: 15px; font-weight: 600; }
.document-body { max-width: 720px; }
.footer-documents { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.footer-heading { margin-bottom: 4px; color: var(--ink); font-size: 12px; font-weight: 600; }
.inquiry-consent a { color: inherit; text-decoration: underline; text-underline-offset: 3px; }

.inquiry-page { padding-bottom: 120px; }
.inquiry-header { display: grid; grid-template-columns: minmax(280px, .8fr) 1.2fr; gap: 24px; padding-block: 74px 62px; }
.inquiry-header .section-number { grid-column: 1 / -1; margin-bottom: 0; color: var(--muted); }
.inquiry-header h1 { margin: 0; font-family: "Songti SC", "STSong", serif; font-size: 72px; font-weight: 500; line-height: 1.04; }
.inquiry-header > p:last-child { max-width: 680px; margin: 10px 0 0; color: var(--muted); font-size: 18px; }
.inquiry-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 44px; border-top: 1px solid var(--ink); }
.inquiry-index { position: sticky; top: 20px; align-self: start; display: grid; grid-template-columns: 38px 1fr; gap: 18px 12px; padding-top: 30px; color: var(--muted); font-size: 12px; }
.inquiry-index strong { color: var(--ink); font-weight: 600; }
.inquiry-form { min-width: 0; }
.inquiry-group { padding-block: 34px 46px; border-bottom: 1px solid var(--ink); }
.inquiry-group > header { display: grid; grid-template-columns: 52px 1fr; align-items: baseline; margin-bottom: 30px; }
.inquiry-group > header span { color: var(--copper); font-size: 12px; }
.inquiry-group > header h2 { margin: 0; font-family: "Songti SC", "STSong", serif; font-size: 32px; font-weight: 500; }
.inquiry-form fieldset { min-width: 0; margin: 0 0 28px; padding: 0; border: 0; }
.inquiry-form legend { width: 100%; padding: 0 0 12px; color: var(--muted); font-size: 12px; }
.inquiry-options { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.inquiry-options label { min-height: 64px; display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); cursor: pointer; }
.inquiry-options input, .inquiry-products input, .inquiry-consent input { accent-color: var(--green); }
.inquiry-products { border-top: 1px solid var(--line); }
.inquiry-product-search { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 12px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.inquiry-product-search label { min-width: 0; }
.inquiry-product-search input { width: 100%; min-height: 42px; border: 0; border-bottom: 1px solid var(--ink); border-radius: 0; padding: 8px 0; background: transparent; }
.inquiry-product-search button { min-height: 42px; }
.inquiry-product-selected { padding: 18px 0; border-bottom: 1px solid var(--ink); }
.inquiry-product-selected h3 { margin: 0 0 10px; color: var(--muted); font-size: 12px; font-weight: 500; }
.inquiry-product-selected [data-inquiry-product-selected-list] { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.inquiry-product-selected article { min-width: 0; min-height: 58px; display: grid; grid-template-columns: minmax(0, 1fr) 44px; align-items: center; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); padding-left: 14px; }
.inquiry-product-selected article span, .inquiry-product-results label span { min-width: 0; display: flex; flex-direction: column; }
.inquiry-product-selected article strong, .inquiry-product-results label strong { overflow-wrap: anywhere; font-family: "Songti SC", "STSong", serif; font-size: 18px; font-weight: 500; }
.inquiry-product-selected article small, .inquiry-product-results label small { color: var(--muted); }
.inquiry-product-selected article button { width: 44px; height: 44px; display: grid; place-items: center; border: 0; padding: 0; background: transparent; font-size: 18px; cursor: pointer; }
.inquiry-product-results { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.inquiry-product-results label { min-height: 72px; display: flex; align-items: center; gap: 14px; padding: 12px 16px; border-bottom: 1px solid var(--line); cursor: pointer; }
.inquiry-product-results label:nth-child(odd) { border-right: 1px solid var(--line); }
.inquiry-product-empty { margin: 0; padding: 18px 0; color: var(--muted); }
.inquiry-product-pagination { min-height: 48px; display: flex; align-items: center; justify-content: flex-end; gap: 10px; border-bottom: 1px solid var(--line); }
.inquiry-product-pagination span { min-width: 72px; text-align: center; color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }
.inquiry-product-pagination button:disabled { cursor: not-allowed; opacity: .35; }
.inquiry-product-status { min-height: 20px; margin: 8px 0 0; color: #8e2f23; font-size: 12px; }
.inquiry-field-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px 24px; }
.inquiry-field { min-width: 0; display: grid; gap: 8px; color: var(--muted); font-size: 12px; }
.inquiry-field-short { max-width: 320px; }
.inquiry-field input, .inquiry-field select, .inquiry-field textarea { width: 100%; min-height: 50px; border: 0; border-bottom: 1px solid var(--ink); border-radius: 0; padding: 9px 0; color: var(--ink); background: transparent; }
.inquiry-field textarea { min-height: 170px; resize: vertical; line-height: 1.6; }
.inquiry-field input:focus, .inquiry-field select:focus, .inquiry-field textarea:focus { border-bottom-color: var(--copper); }
.inquiry-attachments { margin-top: 28px; }
.inquiry-file-label { display: block; margin-bottom: 10px; color: var(--muted); font-size: 12px; }
.inquiry-file-trigger { min-height: 44px; display: inline-flex; align-items: center; gap: 9px; border: 1px solid var(--ink); padding: 7px 16px; font-size: 13px; cursor: pointer; }
.inquiry-file-trigger:hover { color: #fff; background: var(--green); }
.visually-hidden:focus-visible + .inquiry-file-trigger { outline: 2px solid var(--copper); outline-offset: 4px; }
.inquiry-file-list { margin: 14px 0 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.inquiry-file-item { display: grid; grid-template-columns: minmax(0, 1fr) auto 44px; align-items: center; gap: 14px; min-height: 48px; border-bottom: 1px solid var(--line); }
.inquiry-file-name { min-width: 0; overflow-wrap: anywhere; font-size: 13px; }
.inquiry-file-size { color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }
.inquiry-file-remove { width: 44px; height: 44px; display: grid; place-items: center; border: 0; padding: 0; color: var(--ink); background: transparent; font-size: 18px; line-height: 1; cursor: pointer; }
.inquiry-file-error { grid-column: 1 / -1; margin: -5px 0 9px; color: #8e2f23; font-size: 12px; }
.inquiry-file-status { min-height: 20px; margin: 8px 0 0; color: var(--muted); font-size: 12px; }
.inquiry-consent { display: flex; align-items: start; gap: 12px; margin-top: 24px; font-size: 13px; }
.inquiry-consent input { margin-top: 4px; }
.inquiry-submit-area { min-height: 72px; display: flex; align-items: center; gap: 22px; margin-top: 32px; }
.inquiry-submit-area button { min-width: 180px; border: 0; cursor: pointer; }
.inquiry-submit-area button:disabled { color: var(--muted); background: var(--paper-deep); cursor: not-allowed; }
.inquiry-submit-area p { margin: 0; color: var(--muted); font-size: 13px; }
.inquiry-submit-area [data-inquiry-receipt] { color: var(--green-dark); font-size: 15px; font-weight: 650; }
.inquiry-form [aria-invalid="true"] { border-bottom-color: #8e2f23; }
.inquiry-form .field-error { grid-column: 1 / -1; }
.inquiry-challenge { width: min(620px, calc(100vw - 40px)); max-height: calc(100vh - 40px); border: 1px solid var(--ink); border-radius: 0; padding: 0; color: var(--ink); background: var(--paper); }
.inquiry-challenge::backdrop { background: rgba(23, 25, 21, .62); }
.challenge-panel { padding: 28px; }
.challenge-panel > header { display: flex; align-items: center; justify-content: space-between; color: var(--muted); font-size: 11px; }
.challenge-panel > header button { width: 44px; height: 44px; display: grid; place-items: center; border: 0; background: transparent; font-size: 20px; cursor: pointer; }
.challenge-panel h2 { margin: 26px 0 10px; font-family: "Songti SC", "STSong", serif; font-size: 34px; font-weight: 500; }
.challenge-panel > p { margin: 0 0 24px; color: var(--muted); }
.captcha-widget { min-height: 156px; border: 1px solid var(--line); background: #fff; }
.captcha-widget-frame { display: block; width: 100%; height: 156px; border: 0; background: #fff; }
.challenge-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 26px; }
.challenge-actions button { border-radius: 0; cursor: pointer; }
.challenge-actions button:disabled { color: var(--muted); background: var(--paper-deep); cursor: not-allowed; }
.challenge-actions .action-secondary { color: var(--ink); background: transparent; }
.field-error { min-height: 22px; margin: 8px 0 0 !important; color: #8e2f23 !important; font-size: 12px; }

.account-page { min-height: 720px; padding-block: 42px 86px; }
.account-layout { min-height: 680px; display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(460px, .92fr); border: 1px solid var(--ink); background: #fff; }
.account-aside { position: relative; min-height: 680px; display: flex; flex-direction: column; justify-content: space-between; overflow: hidden; padding: 36px; color: #fff; background: var(--green-dark); }
.account-aside::before { content: ""; position: absolute; inset: 0; background: rgba(4, 26, 20, .62); }
.account-aside::after { content: ""; position: absolute; inset: 22px; border: 1px solid rgba(255, 255, 255, .34); pointer-events: none; }
.account-aside-code, .account-aside-copy { position: relative; z-index: 1; }
.account-aside-code { font-size: 11px; font-weight: 700; letter-spacing: 0; }
.account-aside-copy { max-width: 620px; }
.account-aside-copy strong { display: flex; align-items: baseline; gap: 18px; font-family: "Iowan Old Style", "Songti SC", "STSong", serif; font-size: 36px; font-weight: 500; }
.account-aside-copy strong b { font-size: 76px; font-weight: 500; }
.account-aside-copy p { max-width: 430px; margin: 16px 0 0; color: rgba(255, 255, 255, .72); }
.account-panel { min-width: 0; display: flex; flex-direction: column; justify-content: center; padding: clamp(48px, 6vw, 96px); }
.account-header .section-number { margin-bottom: 20px; color: var(--copper); font-weight: 700; }
.account-header h1, .cart-header h1 { margin: 0; font-family: "Iowan Old Style", "Songti SC", "STSong", serif; font-size: 58px; font-weight: 500; line-height: 1.04; }
.account-header > p:last-child:not(.section-number) { margin: 16px 0 0; color: var(--muted); overflow-wrap: anywhere; }
.account-form { display: grid; gap: 24px; margin-top: 48px; }
.account-form label, .address-form label { min-width: 0; display: grid; gap: 9px; color: var(--muted); font-size: 12px; }
.account-form input, .address-form input, .address-form textarea { width: 100%; min-height: 52px; border: 0; border-bottom: 1px solid var(--ink); border-radius: 0; padding: 8px 0; color: var(--ink); background: transparent; }
.account-form input:focus, .address-form input:focus, .address-form textarea:focus { border-bottom: 2px solid var(--copper); outline: 0; }
.account-form .action-primary { width: 100%; margin-top: 10px; }
.account-form .account-consent { display: grid; grid-template-columns: 20px minmax(0, 1fr); gap: 7px 10px; align-items: start; color: var(--ink); font-size: 13px; line-height: 1.65; cursor: pointer; }
.account-form .account-consent input { width: 18px; min-height: 18px; display: grid; place-items: center; margin-top: 2px; border: 1px solid var(--line-strong); border-radius: 4px; padding: 0; appearance: none; background: var(--surface); cursor: pointer; }
.account-form .account-consent input::after { width: 4px; height: 8px; border: solid #fff; border-width: 0 2px 2px 0; content: ""; opacity: 0; transform: translateY(-1px) rotate(45deg); }
.account-form .account-consent input:checked { border-color: var(--green); background: var(--green); }
.account-form .account-consent input:checked::after { opacity: 1; }
.account-form .account-consent input:focus { border: 1px solid var(--green); box-shadow: 0 0 0 4px rgba(49, 95, 86, .13); }
.account-form .account-consent a { color: inherit; text-decoration: underline; text-underline-offset: 3px; }
.account-form .account-consent .field-error { grid-column: 2; }
.account-form .action-primary:disabled { color: var(--muted); background: var(--paper-deep); cursor: not-allowed; }
.account-links { display: flex; flex-wrap: wrap; gap: 10px 20px; margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.account-links a, .account-switch a { text-decoration: underline; text-underline-offset: 4px; }
.account-switch { margin: 24px 0 0; color: var(--muted); font-size: 13px; }
.form-error, .form-status { margin: 28px 0 0; padding: 14px 16px; border-left: 3px solid #9b2d20; background: #f1dfdb; }
.form-status { border-left-color: var(--green); background: #dfeae4; }

.account-dashboard, .addresses-page, .sessions-page, .cart-page { min-height: 720px; padding-block: 72px 120px; }
.account-dashboard > .account-header, .addresses-page > .account-header, .sessions-page > .account-header, .cart-header { display: grid; grid-template-columns: minmax(0, 1fr) minmax(260px, .55fr); align-items: end; gap: 32px; padding-bottom: 48px; border-bottom: 1px solid var(--ink); }
.account-dashboard > .account-header .section-number, .addresses-page > .account-header .section-number, .sessions-page > .account-header .section-number, .cart-header .section-number { grid-column: 1 / -1; margin-bottom: 0; }
.account-dashboard > .account-header > p:last-child { align-self: end; margin: 0; text-align: right; }
.account-dashboard-grid { display: grid; grid-template-columns: minmax(290px, .7fr) minmax(0, 1.3fr); gap: 0; border-bottom: 1px solid var(--ink); }
.account-sections { border-right: 1px solid var(--ink); }
.account-sections a { min-height: 112px; display: grid; grid-template-columns: 46px 1fr auto; align-items: center; gap: 16px; padding: 22px 28px 22px 0; border-bottom: 1px solid var(--line); font-family: "Iowan Old Style", "Songti SC", "STSong", serif; font-size: 24px; }
.account-sections a span { color: var(--copper); font-family: "Avenir Next", sans-serif; font-size: 11px; }
.account-sections a i { font-style: normal; }
.account-sections a:hover { padding-left: 14px; background: var(--paper-deep); }
.account-profile { padding: 46px clamp(34px, 6vw, 90px); }
.account-status-mark { display: flex; align-items: center; gap: 16px; margin-bottom: 42px; }
.account-status-mark::before { content: ""; width: 13px; height: 13px; background: var(--green); box-shadow: 0 0 0 5px rgba(29, 73, 62, .14); }
.account-status-mark span { color: var(--muted); font-size: 11px; letter-spacing: 0; }
.account-status-mark strong { font-size: 14px; text-transform: uppercase; }
.account-facts { margin: 0 0 38px; }
.account-facts div { display: grid; grid-template-columns: minmax(140px, .5fr) 1fr; gap: 24px; padding-block: 18px; border-top: 1px solid var(--line); }
.account-facts div:last-child { border-bottom: 1px solid var(--line); }
.account-facts dt { color: var(--muted); }
.account-facts dd { margin: 0; overflow-wrap: anywhere; }
.account-profile .action-secondary { min-width: 150px; background: transparent; cursor: pointer; }

.addresses-layout { display: grid; grid-template-columns: minmax(320px, .78fr) minmax(0, 1.22fr); border-bottom: 1px solid var(--ink); }
.address-list, .address-editor { min-width: 0; padding-block: 40px 72px; }
.address-list { padding-right: clamp(28px, 4vw, 64px); border-right: 1px solid var(--ink); }
.address-editor { padding-left: clamp(28px, 4vw, 64px); }
.address-list > header, .address-editor > header { display: grid; grid-template-columns: 42px 1fr; align-items: baseline; margin-bottom: 32px; }
.address-list > header span, .address-editor > header span { color: var(--copper); font-size: 11px; }
.address-list h2, .address-editor h2 { margin: 0; font-family: "Iowan Old Style", "Songti SC", "STSong", serif; font-size: 30px; font-weight: 500; }
.address-item { padding: 24px 0; border-top: 1px solid var(--line); }
.address-item > header { display: flex; justify-content: space-between; gap: 20px; }
.address-item > header span { color: var(--green); font-size: 11px; font-weight: 700; text-transform: uppercase; }
.address-item p { margin: 12px 0 0; color: var(--muted); }
.address-actions { display: flex; align-items: center; gap: 8px; margin-top: 20px; }
.address-actions a { font-size: 18px; text-decoration: none; }
.address-actions form { margin-left: auto; }
.address-empty { min-height: 220px; display: grid; place-items: center; margin: 0; border-block: 1px solid var(--line); color: var(--muted); }
.address-form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 32px; }
.address-form .address-detail, .address-form .check-control, .address-form .action-primary { grid-column: 1 / -1; }
.address-form textarea { min-height: 104px; resize: vertical; }
.address-form .check-control { display: flex; align-items: center; gap: 10px; }
.address-form .check-control input { width: 17px; min-height: 17px; accent-color: var(--green); }
.address-form .action-primary { width: max-content; min-width: 190px; }
.session-list { border-bottom: 1px solid var(--ink); }
.session-item { min-height: 132px; display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 32px; padding: 26px 0; border-top: 1px solid var(--line); }
.session-item:first-child { border-top: 0; }
.session-item > div > span { color: var(--green); font-size: 11px; font-weight: 700; text-transform: uppercase; }
.session-item dl { display: grid; grid-template-columns: repeat(2, minmax(180px, 1fr)); gap: 16px 40px; margin: 14px 0 0; }
.session-item dl div { display: grid; gap: 5px; }
.session-item dt { color: var(--muted); font-size: 12px; }
.session-item dd { margin: 0; font-size: 14px; }
.session-empty { min-height: 180px; display: grid; place-items: center; margin: 0; color: var(--muted); }

.cart-header { grid-template-columns: 1fr auto; }
.cart-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(330px, 420px); gap: clamp(36px, 5vw, 76px); padding-top: 44px; }
.cart-lines { min-width: 0; border-top: 1px solid var(--ink); }
.cart-line { min-height: 176px; display: grid; grid-template-columns: 128px minmax(240px, 1fr) auto; gap: 32px; align-items: center; padding-block: 24px; border-bottom: 1px solid var(--line); }
.cart-line-visual { width: 128px; aspect-ratio: 1; display: grid; place-items: center; color: rgba(255, 255, 255, .68); background: var(--green-dark); font-size: 11px; letter-spacing: 0; }
.cart-line-visual img { width: 100%; height: 100%; object-fit: cover; }
.cart-line-content > span { color: var(--copper); font-size: 11px; letter-spacing: 0; }
.cart-line-content h2 { margin: 9px 0; font-family: "Iowan Old Style", "Songti SC", "STSong", serif; font-size: 26px; font-weight: 500; line-height: 1.2; }
.cart-line-content small { color: var(--muted); }
.cart-line-invalid { background: rgba(176, 66, 38, .035); }
.cart-line-issue { max-width: 44ch; margin: 10px 0 0; color: var(--danger); font-size: 13px; line-height: 1.5; }
.cart-line-controls { min-width: 420px; display: grid; grid-template-columns: max-content max-content 44px; align-items: center; justify-content: end; gap: 24px; }
.cart-line-controls > form:first-child { position: relative; }
.cart-line-controls > strong { min-width: 112px; text-align: right; font-size: 18px; font-variant-numeric: tabular-nums; }
.cart-line-controls > form:last-child { justify-self: end; }
.cart-line-controls label { display: flex; align-items: center; gap: 12px; color: var(--muted); font-size: 11px; }
.cart-line-controls label > span:first-child { white-space: nowrap; }
.cart-line-controls input { width: 74px; min-height: 46px; border: 1px solid var(--line); border-radius: 0; padding-inline: 12px; background: #fff; }
.cart-line-controls .action-secondary { min-height: 38px; margin-top: 8px; padding-inline: 14px; color: var(--ink); background: transparent; cursor: pointer; }
.icon-command { width: 44px; height: 44px; display: inline-grid; place-items: center; border: 1px solid var(--line); border-radius: 0; padding: 0; color: var(--ink); background: transparent; font-size: 18px; cursor: pointer; }
.icon-command:hover { color: #fff; background: var(--ink); }
.cart-summary { position: sticky; top: 28px; align-self: start; padding: 34px; color: #fff; background: var(--green-dark); }
.cart-summary h2 { margin: 0 0 44px; font-family: "Iowan Old Style", "Songti SC", "STSong", serif; font-size: 32px; font-weight: 500; }
.cart-summary dl { margin: 0 0 34px; }
.cart-summary dl div { display: flex; justify-content: space-between; gap: 20px; padding-block: 15px; border-top: 1px solid rgba(255, 255, 255, .28); }
.cart-summary dl div:last-child { border-bottom: 1px solid rgba(255, 255, 255, .28); font-size: 19px; }
.cart-summary dd { margin: 0; font-variant-numeric: tabular-nums; }
.cart-summary .action-primary { width: 100%; }
.empty-state { min-height: 420px; display: grid; align-content: center; justify-items: start; border-bottom: 1px solid var(--ink); }
.empty-state p { font-family: "Iowan Old Style", "Songti SC", "STSong", serif; font-size: 34px; }

.checkout-page, .orders-page, .order-page, .payment-page { min-height: 720px; padding-block: 72px 120px; }
.commerce-header { padding-bottom: 48px; border-bottom: 1px solid var(--ink); }
.commerce-header .section-number { margin-bottom: 20px; color: var(--copper); font-weight: 700; }
.commerce-header h1 { margin: 0; font-family: "Iowan Old Style", "Songti SC", "STSong", serif; font-size: 58px; font-weight: 500; line-height: 1.04; }
.commerce-header > p:last-child:not(.section-number) { margin: 16px 0 0; color: var(--muted); }
.commerce-section-title { display: grid; grid-template-columns: 46px 1fr; align-items: baseline; margin-bottom: 30px; }
.commerce-section-title span { color: var(--copper); font-size: 11px; }
.commerce-section-title h2 { margin: 0; font-family: "Iowan Old Style", "Songti SC", "STSong", serif; font-size: 30px; font-weight: 500; }

.checkout-layout { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(360px, .85fr); border-bottom: 1px solid var(--ink); }
.checkout-addresses, .checkout-summary { min-width: 0; padding-block: 44px 72px; }
.checkout-addresses { padding-right: clamp(34px, 5vw, 80px); border-right: 1px solid var(--ink); }
.checkout-summary { position: sticky; top: 0; align-self: start; padding-left: clamp(34px, 5vw, 80px); }
.checkout-address { min-height: 112px; display: grid; grid-template-columns: 22px 1fr; align-items: center; gap: 18px; border-top: 1px solid var(--line); padding: 22px 4px; cursor: pointer; }
.checkout-address:last-of-type { border-bottom: 1px solid var(--line); }
.checkout-address input { width: 18px; height: 18px; accent-color: var(--green); }
.checkout-address > span { min-width: 0; display: grid; grid-template-columns: 1fr auto; gap: 6px 18px; }
.checkout-address strong { font-family: "Iowan Old Style", "Songti SC", "STSong", serif; font-size: 21px; font-weight: 500; }
.checkout-address b { font-size: 13px; font-weight: 500; }
.checkout-address small { grid-column: 1 / -1; color: var(--muted); overflow-wrap: anywhere; }
.checkout-add-address { width: fit-content; display: inline-flex; align-items: center; gap: 8px; margin-top: 20px; color: var(--ink); font-weight: 650; }
.checkout-add-address svg { width: 18px; height: 18px; }
.checkout-line { display: flex; justify-content: space-between; gap: 20px; padding-block: 16px; border-top: 1px solid var(--line); }
.checkout-line strong { font-variant-numeric: tabular-nums; }
.checkout-summary dl { margin: 30px 0; }
.checkout-summary dl div { display: flex; justify-content: space-between; gap: 20px; padding-block: 14px; border-top: 1px solid var(--line); }
.checkout-summary dl div:last-child { border-bottom: 1px solid var(--ink); font-size: 19px; }
.checkout-summary dd { margin: 0; font-variant-numeric: tabular-nums; }
.checkout-summary .action-primary { width: 100%; }
.checkout-summary .action-primary:disabled { background: var(--metal); cursor: not-allowed; }

.order-list { border-top: 1px solid var(--ink); }
.order-row { min-height: 108px; display: grid; grid-template-columns: minmax(220px, 1.3fr) minmax(130px, .7fr) minmax(150px, .7fr) minmax(130px, .6fr) 30px; align-items: center; gap: 24px; border-bottom: 1px solid var(--line); }
.order-row > span { min-width: 0; display: grid; gap: 5px; }
.order-row small { color: var(--muted); font-size: 11px; }
.order-row strong { overflow-wrap: anywhere; }
.order-row > b { justify-self: end; font-variant-numeric: tabular-nums; }
.order-row > i { justify-self: end; font-size: 22px; font-style: normal; }
.order-row:hover { padding-inline: 18px; background: var(--paper-deep); }
.orders-page > .empty-state { min-height: 480px; }

.order-lead { display: grid; grid-template-columns: auto 1fr auto; align-items: baseline; gap: 20px; margin-top: 34px; padding-top: 22px; border-top: 1px solid var(--line); }
.order-lead span { color: var(--muted); font-size: 12px; }
.order-lead strong { color: var(--green); }
.order-lead b { font-size: 24px; font-variant-numeric: tabular-nums; }
.order-detail-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(360px, .85fr); border-bottom: 1px solid var(--ink); }
.order-detail-lines, .order-detail-aside { min-width: 0; padding-block: 44px 72px; }
.order-detail-lines { padding-right: clamp(34px, 5vw, 80px); border-right: 1px solid var(--ink); }
.order-detail-aside { padding-left: clamp(34px, 5vw, 80px); }
.order-detail-lines article { display: grid; grid-template-columns: 90px minmax(0, 1fr) auto; gap: 10px 24px; align-items: baseline; padding-block: 22px; border-top: 1px solid var(--line); }
.order-detail-lines article:last-child { border-bottom: 1px solid var(--line); }
.order-detail-lines article > span { grid-row: 1 / span 2; color: var(--copper); font-size: 11px; }
.order-detail-lines h3 { margin: 0; font-family: "Iowan Old Style", "Songti SC", "STSong", serif; font-size: 23px; font-weight: 500; }
.order-detail-lines article p { margin: 0; color: var(--muted); font-size: 13px; }
.order-detail-lines article strong { grid-column: 3; grid-row: 1 / span 2; font-variant-numeric: tabular-nums; }
.order-detail-aside address { display: grid; gap: 8px; padding-block: 20px; border-block: 1px solid var(--line); font-style: normal; }
.order-detail-aside address span, .order-detail-aside address p { color: var(--muted); }
.order-detail-aside address p { margin: 0; }
.order-actions { margin-top: 42px; }
.order-actions h2 { margin: 0 0 18px; font-family: "Iowan Old Style", "Songti SC", "STSong", serif; font-size: 27px; font-weight: 500; }
.order-actions form + form { margin-top: 8px; }
.order-actions button { width: 100%; }
.order-actions .action-secondary { color: var(--ink); background: transparent; cursor: pointer; }
.payment-history, .fulfillment-history, .refund-history, .refund-request, .after-sales-history, .after-sales-request { padding-block: 48px; border-bottom: 1px solid var(--ink); }
.fulfillment-records { display: grid; border-top: 1px solid var(--line); }
.fulfillment-records > article { padding-block: 24px; border-bottom: 1px solid var(--line); }
.fulfillment-records > article > header { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; }
.fulfillment-records > article > header span { color: var(--green); font-size: 13px; }
.shipment-records { display: grid; gap: 18px; margin-top: 20px; }
.shipment-records dl { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 18px 24px; margin: 0; padding: 18px; background: var(--paper-deep); }
.shipment-records dl > div { min-width: 0; display: grid; gap: 6px; }
.shipment-records dt { color: var(--muted); font-size: 11px; }
.shipment-records dd { min-width: 0; margin: 0; overflow-wrap: anywhere; font-size: 13px; }
.shipment-records code { color: var(--ink); font-family: inherit; font-variant-numeric: tabular-nums; }
.payment-records, .refund-records, .after-sales-records { display: grid; border-top: 1px solid var(--line); }
.payment-records article, .refund-records article, .after-sales-records article { padding-block: 24px; border-bottom: 1px solid var(--line); }
.payment-records header, .payment-records header div, .refund-records header, .refund-records header div, .refund-records li, .refund-lines label,
.after-sales-records header, .after-sales-records header div, .after-sales-records li, .after-sales-lines label { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.payment-records header div, .refund-records header div, .after-sales-records header div { justify-content: flex-start; }
.payment-records header span, .refund-records header span, .after-sales-records header span { color: var(--copper); font-size: 12px; }
.payment-records article > p { display: flex; justify-content: space-between; gap: 20px; color: var(--muted); }
.payment-records code { color: inherit; overflow-wrap: anywhere; }
.refund-records article > p, .refund-request > p, .after-sales-records article > p, .after-sales-request > p, .empty-note { color: var(--muted); }
.refund-records ul, .after-sales-records ul { display: grid; gap: 8px; margin: 18px 0 0; padding: 0; list-style: none; }
.refund-records li, .after-sales-records li { font-size: 13px; }
.refund-request form, .after-sales-request form { max-width: 760px; }
.refund-lines, .after-sales-lines { display: grid; border-top: 1px solid var(--line); }
.refund-lines label, .after-sales-lines label { padding-block: 16px; border-bottom: 1px solid var(--line); }
.refund-lines label > span, .after-sales-lines label > span { display: grid; gap: 4px; }
.refund-lines small, .after-sales-lines small, .after-sales-events { color: var(--muted); }
.refund-lines input[type="number"], .after-sales-lines input[type="number"] { width: 88px; }
.after-sales-events { margin-top: 18px; padding-left: 20px; font-size: 13px; }
.refund-reason, .after-sales-reason, .after-sales-type { display: grid; gap: 8px; margin-block: 22px; }
.refund-reason textarea, .after-sales-reason textarea, .after-sales-type select { width: 100%; resize: vertical; }

.payment-status { max-width: 780px; display: grid; grid-template-columns: auto 1fr auto; gap: 18px 30px; margin-top: 44px; padding-block: 34px; border-block: 1px solid var(--ink); }
.payment-status > span { color: var(--muted); font-size: 12px; }
.payment-status > strong { color: var(--green); }
.payment-status > b { font-size: 22px; font-variant-numeric: tabular-nums; }
.payment-status > p, .payment-status > form, .payment-status > a, .payment-facts, .payment-qr { grid-column: 1 / -1; }
.payment-facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 24px; margin: 0; }
.payment-facts > div { display: grid; gap: 6px; }
.payment-facts dt, .payment-qr figcaption > span { color: var(--muted); font-size: 12px; }
.payment-facts dd { margin: 0; overflow-wrap: anywhere; }
.payment-qr { display: grid; grid-template-columns: 256px minmax(0, 1fr); align-items: center; gap: 24px 32px; margin: 8px 0; }
.payment-qr img { width: 256px; height: 256px; background: #fff; image-rendering: pixelated; }
.payment-qr figcaption { min-width: 0; display: grid; gap: 10px; }
.payment-qr code { max-height: 180px; overflow: auto; overflow-wrap: anywhere; padding: 16px; background: var(--paper-deep); }
.payment-status p { margin: 20px 0 0; color: var(--muted); }
.payment-sync-form { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 16px 24px; padding-top: 18px; border-top: 1px solid var(--line); }
.payment-sync-form > span { color: var(--muted); font-size: 12px; }
.payment-sync-form > b { min-width: 0; overflow-wrap: anywhere; }
.payment-sync-form > small { min-height: 18px; grid-column: 1 / -1; color: var(--muted); font-size: 12px; }
.payment-status a { width: max-content; margin-top: 8px; }
.not-found { min-height: 60vh; display: grid; align-content: center; justify-items: start; }
.not-found > p { margin: 0; color: var(--copper); font-size: 13px; }
.not-found h1 { margin: 18px 0 36px; font-family: "Songti SC", "STSong", serif; font-size: 56px; font-weight: 500; }
.site-footer { padding-block: 54px; border-top: 1px solid var(--line); background: var(--paper-deep); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr auto; gap: 40px; }
.footer-grid strong { letter-spacing: 0; }
.footer-grid p { max-width: 390px; color: var(--muted); font-size: 13px; }
.footer-grid > div:not(:first-child) { display: flex; flex-direction: column; gap: 10px; font-size: 13px; }
.footer-grid small { align-self: end; color: var(--muted); }
.footer-grid small .footer-icp { margin-left: 18px; color: inherit; text-decoration: none; }
.footer-grid small .footer-icp:hover { text-decoration: underline; }

/* Refined product interface: calm materials, clear hierarchy, immediate feedback. */
*, *::before, *::after { letter-spacing: 0; }

.cooperation-band h2,
.content-row h2,
.content-related > a strong,
.inquiry-header h1,
.inquiry-group > header h2,
.inquiry-product-selected article strong,
.inquiry-product-results label strong,
.challenge-panel h2,
.account-aside-copy strong,
.account-header h1,
.cart-header h1,
.account-sections a,
.address-list h2,
.address-editor h2,
.cart-line-content h2,
.cart-summary h2,
.empty-state p,
.commerce-header h1,
.commerce-section-title h2,
.checkout-address strong,
.order-detail-lines h3,
.order-actions h2,
.not-found h1 { font-family: inherit; font-weight: 600; }

.content-index-header h1,
.content-detail-header h1,
.content-landing-header h1 { font-weight: 600; }

.knowledge-lines a,
.content-row,
.content-related > a,
.channel-list a,
.account-sections a,
.order-row { transition: background-color 140ms ease, transform 100ms ease-out; }

.knowledge-lines a:hover,
.content-row:hover,
.content-related > a:hover,
.channel-list a:hover { background: rgba(29, 29, 31, .045); }

.content-cover,
.content-landing-cover { border-radius: var(--radius); box-shadow: var(--shadow-soft); }

.inquiry-layout,
.content-list,
.product-copy,
.account-dashboard-grid,
.addresses-layout,
.cart-lines,
.checkout-layout,
.order-list,
.order-detail-grid { border-color: var(--line-strong); }

.inquiry-index { top: calc(var(--header-height) + 24px); }
.inquiry-options { gap: 8px; border: 0; }
.inquiry-options label { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); transition: border-color 140ms ease, background-color 140ms ease, transform 100ms ease-out; }
.inquiry-options label:hover { border-color: var(--line-strong); background: var(--paper-deep); }
.inquiry-product-search input,
.inquiry-field input,
.inquiry-field select,
.inquiry-field textarea,
.account-form input,
.address-form input,
.address-form textarea,
.cart-line-controls input,
.refund-reason textarea,
.after-sales-reason textarea,
.after-sales-type select,
.refund-lines input,
.after-sales-lines input { border: 1px solid var(--line-strong); border-radius: var(--radius); padding: 10px 12px; background: var(--surface); transition: border-color 140ms ease, box-shadow 140ms ease; }
.inquiry-product-search input:focus,
.inquiry-field input:focus,
.inquiry-field select:focus,
.inquiry-field textarea:focus,
.account-form input:focus,
.address-form input:focus,
.address-form textarea:focus { border: 1px solid var(--green); box-shadow: 0 0 0 4px rgba(49, 95, 86, .13); outline: 0; }
.inquiry-form [aria-invalid="true"] { border-color: #9b2d20; box-shadow: 0 0 0 4px rgba(155, 45, 32, .1); }
.inquiry-file-trigger { border-color: var(--line-strong); border-radius: var(--radius); background: var(--surface); transition: color 140ms ease, background-color 140ms ease, transform 100ms ease-out; }

.inquiry-product-selected [data-inquiry-product-selected-list] { gap: 8px; border: 0; }
.inquiry-product-selected article { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.inquiry-product-results { gap: 8px; }
.inquiry-product-results label,
.inquiry-product-results label:nth-child(odd) { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }

.inquiry-challenge { border: 1px solid rgba(29, 29, 31, .14); border-radius: var(--radius); background: var(--surface-raised); box-shadow: var(--shadow-raised); backdrop-filter: blur(24px) saturate(160%); -webkit-backdrop-filter: blur(24px) saturate(160%); }
.inquiry-challenge[open] { animation: dialog-enter 160ms ease-out; }
.inquiry-challenge::backdrop { background: rgba(0, 0, 0, .38); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.challenge-panel > header button,
.inquiry-product-selected article button,
.inquiry-file-remove,
.icon-command { border-radius: 6px; transition: color 140ms ease, background-color 140ms ease, transform 100ms ease-out; }
.challenge-panel > header button:hover,
.inquiry-product-selected article button:hover,
.inquiry-file-remove:hover { background: var(--paper-deep); }
.captcha-widget { overflow: hidden; border-radius: var(--radius); }
.challenge-actions button { border-radius: var(--radius); }

.account-layout { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-soft); }
.account-aside::before { background: rgba(4, 26, 20, .48); }
.account-aside::after { display: none; }
.account-panel { background: var(--surface); }
.form-error,
.form-status { border: 1px solid rgba(155, 45, 32, .18); border-radius: var(--radius); background: #f8eae7; }
.form-status { border-color: rgba(49, 95, 86, .2); background: #e8f0ed; }
.account-sections a { padding-inline: 20px; }
.account-sections a:hover { padding-left: 20px; }
.account-status-mark::before { border-radius: 50%; }

.address-item,
.session-item,
.shipment-records dl,
.payment-status code { border-radius: var(--radius); }
.cart-line-visual { overflow: hidden; border-radius: var(--radius); }
.quantity-stepper { width: 136px; height: 44px; display: grid; grid-template-columns: 42px 52px 42px; overflow: hidden; border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--surface); }
.quantity-stepper button { width: 42px; height: 42px; border: 0; padding: 0; color: var(--ink); background: transparent; font-size: 20px; line-height: 1; cursor: pointer; transition: color 120ms ease, background-color 120ms ease, transform 80ms ease-out; }
.quantity-stepper button:hover { background: var(--paper-deep); }
.quantity-stepper button:disabled { color: var(--muted); cursor: wait; }
.cart-line-controls .quantity-stepper input { width: 52px; min-height: 42px; border: 0; border-inline: 1px solid var(--line); border-radius: 0; padding: 0 4px; background: var(--surface); text-align: center; appearance: textfield; -moz-appearance: textfield; }
.cart-line-controls .quantity-stepper input::-webkit-inner-spin-button,
.cart-line-controls .quantity-stepper input::-webkit-outer-spin-button { margin: 0; appearance: none; -webkit-appearance: none; }
.cart-line-controls .quantity-stepper input:focus { position: relative; z-index: 1; box-shadow: inset 0 0 0 2px var(--green); outline: 0; }
.cart-line-controls form[data-auto-submit] .cart-quantity-submit { display: none; }
.cart-quantity-status { position: absolute; top: calc(100% + 5px); right: 0; display: block; color: var(--muted); font-size: 11px; white-space: nowrap; }
.cart-quantity-status:empty { display: none; }
.cart-line-controls form[aria-busy="true"] .quantity-stepper { opacity: .62; }
.cart-summary { top: calc(var(--header-height) + 24px); border-radius: var(--radius); box-shadow: var(--shadow-soft); }
.checkout-summary { top: calc(var(--header-height) + 24px); }
.checkout-address { border-radius: var(--radius); transition: background-color 140ms ease, transform 100ms ease-out; }
.checkout-address:hover { background: rgba(29, 29, 31, .045); }
.order-row:hover { padding-inline: 0; }
.payment-status { padding: 34px; border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--surface); }

.action-primary:active,
.action-secondary:active,
.utility-actions a:active,
.primary-links a:active,
.inquiry-link:active,
.category-rail a:active,
.product-media:active,
.gallery-thumbs button:active,
.filters button:active,
.pagination a:active,
.inquiry-options label:active,
.inquiry-file-trigger:active,
.icon-command:active,
.knowledge-lines a:active,
.content-row:active,
.content-related > a:active,
.channel-list a:active,
.solution-entry:active,
.quantity-stepper button:active,
.checkout-address:active { transform: scale(.98); }

@keyframes dialog-enter {
  from { opacity: 0; transform: scale(.98); }
  to { opacity: 1; transform: scale(1); }
}

@media (max-width: 1439px) {
  .cart-layout { grid-template-columns: minmax(0, 1fr) 340px; gap: 32px; }
  .cart-line { grid-template-columns: 112px minmax(0, 1fr); gap: 24px; }
  .cart-line-visual { width: 112px; }
  .cart-line-controls { min-width: 0; grid-column: 2; grid-template-columns: max-content max-content 44px; justify-content: start; }
}

@media (max-width: 1279px) {
  :root { --shell: min(1160px, calc(100vw - 40px)); }
  .primary-links a { padding-inline: 18px; }
  .product-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .catalog-results .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .account-layout { grid-template-columns: minmax(0, .9fr) minmax(430px, 1.1fr); }
  .account-panel { padding: 54px; }
	.checkout-layout, .order-detail-grid { grid-template-columns: minmax(0, 1fr) 340px; }
	.order-row { grid-template-columns: minmax(190px, 1.1fr) 120px 130px 110px 24px; gap: 16px; }
}

@media (max-width: 1023px) {
  :root { --shell: calc(100vw - 32px); --nav-height: 64px; }
  .utility-actions .utility-order-link { display: none; }
  .primary-nav { grid-template-columns: auto 1fr; gap: 16px; }
  .nav-toggle { display: grid; padding: 10px; }
  .primary-links { display: none; position: absolute; top: 100%; left: 0; right: 0; min-height: 0; padding: 8px 16px 14px; background: rgba(245, 245, 247, .96); border-bottom: 1px solid var(--line); box-shadow: var(--shadow-soft); backdrop-filter: blur(24px) saturate(160%); -webkit-backdrop-filter: blur(24px) saturate(160%); }
  .primary-links[data-open] { display: grid; }
  .primary-links a, .primary-links a:first-child { min-height: 52px; display: flex; justify-content: flex-start; border: 0; padding-inline: 20px; }
  .inquiry-link { justify-self: end; }
  .brand-wordmark { font-size: 68px; }
  .hero-category { font-size: 20px; }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .catalog-layout { grid-template-columns: 210px minmax(0, 1fr); gap: 20px; }
  .comparison-toolbar { grid-template-columns: 1fr auto; }
  .comparison-toolbar small { grid-column: 1 / -1; text-align: left; }
  .product-detail { grid-template-columns: minmax(0, 1fr) 390px; gap: 30px; }
	.content-index-header { grid-template-columns: 1fr 1.4fr; }
	.inquiry-layout { grid-template-columns: 150px minmax(0, 1fr); gap: 24px; }
	.inquiry-options { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.account-aside-copy strong { display: grid; gap: 2px; }
	.account-aside-copy strong b { font-size: 58px; }
	.account-dashboard-grid { grid-template-columns: 250px minmax(0, 1fr); }
	.addresses-layout { grid-template-columns: minmax(280px, .72fr) minmax(0, 1.28fr); }
	.address-form { grid-template-columns: 1fr; }
	.address-form .address-detail, .address-form .check-control, .address-form .action-primary { grid-column: auto; }
	.cart-layout { grid-template-columns: minmax(0, 1fr) 310px; }
	.cart-line { grid-template-columns: 100px minmax(0, 1fr); }
	.cart-line-visual { width: 100px; }
	.cart-line-controls { grid-template-columns: max-content max-content 44px; gap: 16px; }
	.checkout-layout, .order-detail-grid { grid-template-columns: minmax(0, 1fr) 310px; }
	.order-row { grid-template-columns: minmax(180px, 1fr) 120px 120px 24px; }
	.order-row > span:nth-child(2) { display: none; }
}

@media (max-width: 760px) {
  :root { --shell: calc(100vw - 24px); }
  .utility-actions a { padding-inline: 11px; }
  .utility-actions .utility-icon-link { padding-inline: 0; }
  .home-hero { min-height: 680px; }
  .hero-content { padding-block: 64px 94px; }
  .brand-wordmark { font-size: 52px; }
  .hero-actions { flex-direction: column; align-items: stretch; max-width: 300px; }
  .section-block { padding-block: 64px; }
  .section-heading { grid-template-columns: 44px 1fr; }
  .section-heading > a { grid-column: 2; }
  .category-rail, .solution-grid, .product-grid, .catalog-results .product-grid { grid-template-columns: 1fr; }
  .category-rail a:nth-child(odd) { border-right: 0; }
  .cooperation-band { align-items: start; flex-direction: column; gap: 34px; }
  .cooperation-band h2 { font-size: 36px; }
  .listing-header, .catalog-layout, .product-detail, .product-copy { grid-template-columns: 1fr; }
  .listing-header h1 { font-size: 48px; }
  .filters { position: static; }
  .comparison-toolbar { grid-template-columns: 1fr; align-items: stretch; }
  .comparison-toolbar button { width: 100%; }
  .comparison-toolbar small { grid-column: auto; }
  .compare-heading { grid-template-columns: 1fr; }
  .product-summary h1 { font-size: 42px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
	.content-index-header, .content-reading-layout { grid-template-columns: 1fr; }
	.document-page { padding-block: 48px 80px; }
	.document-header h1 { font-size: 44px; }
	.document-layout { grid-template-columns: 1fr; gap: 28px; padding-top: 36px; }
	.document-layout > aside { padding-bottom: 20px; border-bottom: 1px solid var(--line); }
	.content-row { grid-template-columns: 44px minmax(0, 1fr) 40px; gap: 12px; }
	.content-row h2 { font-size: 26px; }
	.content-related > a { grid-template-columns: 1fr auto; }
	.content-related > a span { grid-column: 1 / -1; }
	.inquiry-header, .inquiry-layout { grid-template-columns: 1fr; }
	.inquiry-header h1 { font-size: 48px; }
	.inquiry-index { display: none; }
	.inquiry-options, .inquiry-product-results, .inquiry-product-selected [data-inquiry-product-selected-list], .inquiry-field-grid { grid-template-columns: 1fr; }
	.inquiry-product-results label:nth-child(odd) { border-right: 0; }
	.inquiry-submit-area { align-items: stretch; flex-direction: column; }
	.inquiry-submit-area button { width: 100%; }
	.account-page { padding-block: 20px 54px; }
	.account-layout, .account-dashboard-grid, .addresses-layout, .cart-layout, .checkout-layout, .order-detail-grid { grid-template-columns: 1fr; }
	.account-aside { min-height: 330px; }
	.account-panel { padding: 40px 24px; }
	.account-header h1, .cart-header h1 { font-size: 44px; }
	.account-dashboard, .addresses-page, .sessions-page, .cart-page, .checkout-page, .orders-page, .order-page, .payment-page { padding-block: 48px 80px; }
	.account-dashboard > .account-header, .addresses-page > .account-header, .sessions-page > .account-header, .cart-header { grid-template-columns: 1fr; }
	.account-dashboard > .account-header > p:last-child { text-align: left; }
	.account-sections { border-right: 0; border-bottom: 1px solid var(--ink); }
	.session-item { grid-template-columns: 1fr; }
	.session-item dl { grid-template-columns: 1fr; }
	.account-profile { padding-inline: 0; }
	.address-list { padding-right: 0; border-right: 0; border-bottom: 1px solid var(--ink); }
	.address-editor { padding-left: 0; }
	.cart-line { grid-template-columns: 88px minmax(0, 1fr); gap: 16px; }
	.cart-line-visual { width: 88px; }
	.cart-line-controls { grid-column: 1 / -1; grid-template-columns: minmax(0, 1fr) auto 44px; align-items: end; }
	.cart-line-controls label { align-items: flex-start; flex-direction: column; gap: 6px; }
	.cart-summary { position: static; }
	.commerce-header h1 { font-size: 44px; }
	.checkout-addresses, .order-detail-lines { padding-right: 0; border-right: 0; border-bottom: 1px solid var(--ink); }
	.checkout-summary, .order-detail-aside { position: static; padding-left: 0; }
	.order-row { grid-template-columns: 1fr auto; gap: 12px; padding-block: 20px; }
	.order-row > span:nth-child(2), .order-row > span:nth-child(3) { display: grid; }
	.order-row > b { grid-column: 2; grid-row: 1; }
	.order-row > i { grid-column: 2; grid-row: 2 / span 2; }
	.order-lead { grid-template-columns: 1fr auto; }
	.order-lead span { grid-column: 1 / -1; }
	.order-detail-lines article { grid-template-columns: 70px minmax(0, 1fr); }
	.order-detail-lines article strong { grid-column: 2; grid-row: auto; }
	.shipment-records dl { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.payment-qr { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; }
  .product-media:hover,
  .product-media:hover img,
  .action-primary:active,
  .action-secondary:active,
  .utility-actions a:active,
  .primary-links a:active,
  .inquiry-link:active,
  .category-rail a:active,
  .product-media:active,
  .gallery-thumbs button:active,
  .filters button:active,
  .pagination a:active,
  .inquiry-options label:active,
  .inquiry-file-trigger:active,
  .icon-command:active,
  .knowledge-lines a:active,
  .content-row:active,
  .content-related > a:active,
  .channel-list a:active,
  .solution-entry:active,
  .quantity-stepper button:active,
  .checkout-address:active { transform: none; }
}

@media (prefers-reduced-transparency: reduce) {
  .site-header,
  .filters,
  .inquiry-challenge,
  .primary-links { background: var(--paper); backdrop-filter: none; -webkit-backdrop-filter: none; }
  .inquiry-challenge::backdrop { backdrop-filter: none; -webkit-backdrop-filter: none; }
}

@media (prefers-contrast: more) {
  :root { --line: rgba(29, 29, 31, .34); --line-strong: rgba(29, 29, 31, .58); --muted: #4a4a4f; }
  :focus-visible { outline-color: var(--copper); }
  .site-header,
  .filters,
  .inquiry-challenge { background: var(--surface); }
}