:root {
  --muchen-canvas: #fdfbf7;
  --muchen-paper: #ffffff;
  --muchen-oat: #f3eee7;
  --muchen-oat-deep: #ebe2d7;
  --muchen-ink: #36271f;
  --muchen-muted: #756b63;
  --muchen-line: #ded5cb;
  --muchen-brick: #ad4c32;
  --muchen-brick-dark: #86351f;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.muchen-body { margin: 0; background: var(--muchen-canvas); color: var(--muchen-ink); font-family: -apple-system, BlinkMacSystemFont, "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif; font-size: 16px; line-height: 1.75; }
a { color: inherit; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.muchen-promo { display: block; padding: 9px 24px; background: var(--muchen-brick); color: #fff; text-align: center; font-size: 14px; letter-spacing: .08em; text-decoration: none; }
.muchen-promo:hover, .muchen-promo:focus { background: var(--muchen-brick-dark); color: #fff; text-decoration: none; }
.muchen-alert { position: fixed; z-index: 120; top: 92px; left: 50%; width: min(680px, calc(100% - 32px)); transform: translateX(-50%); }
.muchen-alert:empty { display: none; }
.muchen-alert .alert { margin: 0; border: 1px solid #d7b6a5; box-shadow: 0 12px 28px rgba(57, 42, 32, .14); }
.muchen-header { position: sticky; top: 0; z-index: 20; background: rgba(253,251,247,.96); border-bottom: 1px solid var(--muchen-line); backdrop-filter: blur(12px); }
.muchen-header-inner { max-width: 1380px; margin: auto; padding: 20px 32px; display: flex; align-items: center; gap: 30px; }
.muchen-brand { color: var(--muchen-ink); display: inline-flex; align-items: baseline; gap: 12px; text-decoration: none; white-space: nowrap; font-family: Georgia, "Noto Serif TC", serif; font-size: 30px; letter-spacing: .08em; }
.muchen-brand span { font-family: inherit; font-size: 17px; letter-spacing: .04em; }
.muchen-main-nav { flex: 1; display: flex; justify-content: center; gap: clamp(16px, 2.2vw, 35px); }
.muchen-main-nav a, .muchen-footer a { text-decoration: none; }
.muchen-main-nav a { font-size: 16px; padding: 9px 0; border-bottom: 2px solid transparent; }
.muchen-main-nav a:hover, .muchen-main-nav a:focus { color: var(--muchen-brick); border-color: var(--muchen-brick); }
.muchen-header-actions { display: flex; align-items: center; gap: 12px; }
.muchen-language-switcher { display: flex; align-items: center; white-space: nowrap; }
.muchen-language-switcher form { margin: 0; }
.muchen-language-switcher .dropdown > a { color: var(--muchen-ink); text-decoration: none; font-size: 14px; }
.muchen-language-switcher .dropdown > a:hover, .muchen-language-switcher .dropdown > a:focus { color: var(--muchen-brick); }
.muchen-language-switcher img { width: 18px; height: 12px; object-fit: cover; margin-right: 4px; vertical-align: -1px; }
.muchen-search { display: flex; align-items: center; border-bottom: 1px solid var(--muchen-ink); }
.muchen-search input { width: 112px; border: 0; outline: 0; padding: 8px 2px; background: transparent; color: var(--muchen-ink); font-size: 15px; }
.muchen-search button, .muchen-icon-link { border: 0; background: transparent; text-decoration: none; color: var(--muchen-ink); font-size: 25px; line-height: 1; padding: 7px; cursor: pointer; }
.muchen-icon-link:hover, .muchen-icon-link:focus { color: var(--muchen-brick); }
.muchen-menu-toggle { display: none; border: 1px solid var(--muchen-line); background: var(--muchen-paper); color: var(--muchen-ink); padding: 8px 12px; border-radius: 4px; font-size: 15px; }
.muchen-home { overflow: hidden; }
.muchen-hero { max-width: 1500px; margin: 0 auto; padding: 56px 32px 88px; display: grid; grid-template-columns: minmax(210px, 1fr) minmax(360px, 1.2fr) minmax(210px, 1fr); gap: 38px; align-items: center; }
.muchen-hero-image { position: relative; display: block; overflow: hidden; color: #fff; min-height: 430px; background: var(--muchen-oat); text-decoration: none; }
.muchen-hero-image img { width: 100%; height: 100%; min-height: 430px; display: block; object-fit: cover; transition: transform .4s ease; }
.muchen-hero-image:hover img { transform: scale(1.04); }
.muchen-hero-image span { position: absolute; left: 22px; bottom: 18px; font-size: 20px; font-weight: 700; letter-spacing: .08em; text-shadow: 0 1px 8px rgba(0,0,0,.25); }
.muchen-hero-copy { max-width: 580px; margin: auto; text-align: center; }
.muchen-kicker { margin: 0 0 12px; color: var(--muchen-brick); font-size: 13px; font-weight: 700; letter-spacing: .16em; }
.muchen-hero h1, .muchen-section h2, .muchen-groupbuy h2, .muchen-story h2 { margin: 0; color: var(--muchen-ink); font-family: Georgia, "Noto Serif TC", serif; font-weight: 500; letter-spacing: .04em; line-height: 1.25; }
.muchen-hero h1 { font-size: clamp(42px, 5vw, 70px); }
.muchen-hero-copy > p:not(.muchen-kicker) { max-width: 430px; margin: 24px auto 28px; color: var(--muchen-muted); font-size: 18px; }
.muchen-button-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.muchen-button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 10px 24px; background: var(--muchen-brick); color: #fff; text-decoration: none; border: 1px solid var(--muchen-brick); font-size: 16px; font-weight: 700; border-radius: 2px; }
.muchen-button:hover, .muchen-button:focus { background: var(--muchen-brick-dark); border-color: var(--muchen-brick-dark); color: #fff; }
.muchen-button.is-quiet { background: transparent; color: var(--muchen-brick); }
.muchen-button.is-quiet:hover, .muchen-button.is-quiet:focus { background: var(--muchen-oat); }
.muchen-section { max-width: 1380px; margin: 0 auto; padding: 76px 32px; }
.muchen-section-heading { margin-bottom: 30px; }
.muchen-section-heading.with-link { display: flex; justify-content: space-between; align-items: end; gap: 20px; }
.muchen-section h2, .muchen-groupbuy h2 { font-size: clamp(30px, 3.2vw, 46px); }
.muchen-text-link { color: var(--muchen-brick); font-weight: 700; text-decoration: none; font-size: 16px; }
.muchen-series-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.muchen-series-card { min-height: 320px; position: relative; display: block; overflow: hidden; color: #fff; text-decoration: none; background: var(--muchen-oat); }
.muchen-series-card img { width: 100%; height: 100%; min-height: 320px; object-fit: cover; display: block; transition: transform .4s ease; }
.muchen-series-card:hover img { transform: scale(1.04); }
.muchen-series-card span { position: absolute; left: 28px; bottom: 23px; font-size: 20px; text-shadow: 0 1px 8px rgba(0,0,0,.3); }
.muchen-series-card strong { display: block; font-size: 24px; letter-spacing: .08em; }
.muchen-card-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.muchen-product-card { color: var(--muchen-ink); text-decoration: none; }
.muchen-product-image { overflow: hidden; background: var(--muchen-oat); aspect-ratio: 1 / 1.08; margin-bottom: 14px; }
.muchen-product-image img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.muchen-product-card:hover .muchen-product-image img { transform: scale(1.04); }
.muchen-product-card p { margin: 0 0 3px; color: var(--muchen-brick); font-size: 13px; letter-spacing: .08em; }
.muchen-product-card h2, .muchen-product-card h3 { margin: 0 0 5px; font-size: 17px; line-height: 1.45; font-weight: 600; }
.muchen-product-card strong { font-size: 17px; }
.muchen-category-page { max-width: 1380px; margin: 0 auto; padding: 24px 32px 84px; }
.muchen-category-breadcrumb { display: flex; gap: 10px; align-items: center; padding: 12px 0 42px; color: var(--muchen-muted); font-size: 14px; }
.muchen-category-breadcrumb a { color: var(--muchen-brick); text-decoration: none; }
.muchen-category-breadcrumb strong { color: var(--muchen-ink); font-weight: 600; }
.muchen-category-intro { max-width: 700px; padding-bottom: 46px; }
.muchen-category-intro h1 { margin: 0; font-family: Georgia, "Noto Serif TC", serif; font-size: clamp(38px, 4.5vw, 62px); font-weight: 500; line-height: 1.2; letter-spacing: .04em; }
.muchen-category-intro p:last-child { margin: 20px 0 0; color: var(--muchen-muted); font-size: 18px; }
.muchen-category-toolbar { display: flex; justify-content: space-between; gap: 20px; padding: 16px 0; margin-bottom: 24px; border-top: 1px solid var(--muchen-line); border-bottom: 1px solid var(--muchen-line); color: var(--muchen-muted); }
.muchen-category-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.muchen-category-grid .muchen-product-card h2, .muchen-category-grid .muchen-product-card h3 { margin: 0 0 6px; font-size: 20px; line-height: 1.45; font-weight: 600; }
.muchen-card-detail { display: block; margin-top: 16px; color: var(--muchen-brick); font-weight: 700; }
.muchen-category-note { margin-top: 70px; padding: 24px 0; display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid var(--muchen-line); color: var(--muchen-muted); }
.muchen-category-note strong { color: var(--muchen-ink); font-size: 19px; }
.muchen-category-note a { color: var(--muchen-brick); font-weight: 700; text-decoration: none; }
.muchen-product-page { max-width: 1380px; margin: 0 auto; padding: 24px 32px 90px; }
.muchen-product-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(360px, .85fr); gap: clamp(42px, 7vw, 110px); align-items: start; padding: 24px 0 80px; }
.muchen-product-visual { background: var(--muchen-oat); overflow: hidden; }
.muchen-product-visual img { display: block; width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
.muchen-product-detail { padding: 30px 0; }
.muchen-product-detail h1 { margin: 0; color: var(--muchen-ink); font-family: Georgia, "Noto Serif TC", serif; font-size: clamp(34px, 4vw, 54px); font-weight: 500; line-height: 1.25; }
.muchen-product-code, .muchen-product-tax { color: var(--muchen-muted); font-size: 14px; }
.muchen-product-price { margin-top: 28px; padding-top: 22px; border-top: 1px solid var(--muchen-line); font-size: 18px; }
.muchen-product-price strong { color: var(--muchen-brick); font-size: 30px; }
.muchen-product-price del { color: var(--muchen-muted); margin-right: 8px; }
.muchen-product-description { margin: 24px 0; color: var(--muchen-muted); font-size: 17px; }
.muchen-product-description p { margin: 0 0 12px; }
.muchen-product-options { margin: 24px 0; }
.muchen-product-options label { display: block; margin-bottom: 7px; color: var(--muchen-ink); font-size: 15px; }
.muchen-product-options select { max-width: 360px; padding: 10px; border: 1px solid var(--muchen-line); background: #fff; color: var(--muchen-ink); font-size: 16px; }
.muchen-product-gallery { display: flex; gap: 10px; margin-top: 12px; }
.muchen-product-gallery img { width: 72px; height: 72px; object-fit: cover; border: 1px solid var(--muchen-line); }
.muchen-product-specs { max-width: 980px; margin: 0 auto 60px; padding: 32px 0; border-top: 1px solid var(--muchen-line); border-bottom: 1px solid var(--muchen-line); }
.muchen-product-specs h2 { margin: 0 0 22px; font-family: Georgia, "Noto Serif TC", serif; font-size: 34px; font-weight: 500; }
.muchen-spec-group h3 { margin: 0 0 12px; color: var(--muchen-brick); font-size: 15px; letter-spacing: .12em; }
.muchen-spec-group dl { margin: 0 0 22px; }
.muchen-spec-group dl > div { display: grid; grid-template-columns: minmax(120px, .35fr) 1fr; gap: 24px; padding: 11px 0; border-top: 1px solid var(--muchen-line); }
.muchen-spec-group dt, .muchen-spec-group dd { margin: 0; color: var(--muchen-muted); font-size: 16px; }
.muchen-spec-group dt { color: var(--muchen-ink); }
.muchen-add-row { display: grid; grid-template-columns: auto 90px 1fr; align-items: center; gap: 10px; margin-top: 34px; }
.muchen-add-row label { color: var(--muchen-muted); font-size: 15px; }
.muchen-add-row input { width: 90px; padding: 12px 8px; border: 1px solid var(--muchen-line); text-align: center; font-size: 17px; }
.muchen-add-row button { min-height: 50px; border: 1px solid var(--muchen-brick); background: var(--muchen-brick); color: #fff; cursor: pointer; font-size: 17px; font-weight: 700; }
.muchen-add-row button:hover, .muchen-add-row button:focus { background: var(--muchen-brick-dark); }
.muchen-product-assurance { display: flex; gap: 18px; margin-top: 28px; padding-top: 18px; border-top: 1px solid var(--muchen-line); color: var(--muchen-muted); font-size: 14px; }
.muchen-product-info { max-width: 850px; margin: 0 auto; padding: 60px 0 0; border-top: 1px solid var(--muchen-line); }
.muchen-product-info h2 { margin: 0 0 20px; font-family: Georgia, "Noto Serif TC", serif; font-size: 34px; font-weight: 500; }
.muchen-product-info > div { color: var(--muchen-muted); font-size: 17px; }
.muchen-trust-strip { background: var(--muchen-oat); padding: 76px max(32px, calc((100% - 1380px) / 2)); }
.muchen-guide-intro { max-width: 720px; margin: 18px 0 0; color: var(--muchen-muted); font-size: 17px; line-height: 1.8; }
.muchen-material-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.muchen-material-card { min-height: 250px; display: flex; flex-direction: column; border: 1px solid var(--muchen-line); background: rgba(255,255,255,.68); padding: 24px; }
.muchen-material-card h3 { margin: 12px 0 8px; font-family: Georgia, "Noto Serif TC", serif; font-size: 28px; font-weight: 500; }
.muchen-material-card p { margin: 0 0 20px; color: var(--muchen-muted); font-size: 16px; line-height: 1.7; }
.muchen-material-card strong { margin-top: auto; color: var(--muchen-ink); font-size: 14px; }
.muchen-material-card > span:last-child { margin-top: 5px; color: var(--muchen-muted); font-size: 14px; line-height: 1.6; }
.muchen-trust-number { color: var(--muchen-brick); font-size: 13px; font-weight: 700; letter-spacing: .12em; }
.muchen-size-guide { display: grid; grid-template-columns: .95fr 1.05fr; gap: 44px; margin-top: 52px; padding-top: 42px; border-top: 1px solid var(--muchen-line); }
.muchen-size-guide h3, .muchen-care-guide h3 { margin: 8px 0 18px; color: var(--muchen-ink); font-family: Georgia, "Noto Serif TC", serif; font-size: 30px; font-weight: 500; }
.muchen-size-guide ol { display: grid; gap: 18px; margin: 0; padding: 0; list-style: none; counter-reset: size-step; }
.muchen-size-guide li { position: relative; padding-left: 40px; counter-increment: size-step; }
.muchen-size-guide li::before { content: counter(size-step, decimal-leading-zero); position: absolute; top: 0; left: 0; color: var(--muchen-brick); font-weight: 700; }
.muchen-size-guide li strong, .muchen-size-guide li span { display: block; }
.muchen-size-guide li strong { margin-bottom: 3px; color: var(--muchen-ink); }
.muchen-size-guide li span, .muchen-guide-note { color: var(--muchen-muted); font-size: 14px; line-height: 1.7; }
.muchen-guide-note { margin: 20px 0 0; }
.muchen-size-table-wrap { overflow-x: auto; }
.muchen-size-table { width: 100%; border-collapse: collapse; background: rgba(255,255,255,.68); font-size: 15px; }
.muchen-size-table caption { margin-bottom: 12px; color: var(--muchen-ink); font-weight: 700; text-align: left; }
.muchen-size-table th, .muchen-size-table td { padding: 14px 16px; border: 1px solid var(--muchen-line); text-align: left; vertical-align: top; }
.muchen-size-table thead th { background: rgba(255,255,255,.55); color: var(--muchen-muted); font-size: 13px; }
.muchen-size-table tbody th { color: var(--muchen-ink); white-space: nowrap; }
.muchen-size-table td { color: var(--muchen-muted); }
.muchen-care-guide { display: grid; grid-template-columns: 200px 1fr; gap: 28px; align-items: start; margin-top: 42px; padding: 24px 0 0; border-top: 1px solid var(--muchen-line); }
.muchen-care-guide h3 { margin-bottom: 0; font-size: 24px; }
.muchen-care-guide p { max-width: 760px; margin: 0; color: var(--muchen-muted); font-size: 16px; line-height: 1.8; }
.muchen-groupbuy { max-width: 1380px; margin: 0 auto; padding: 90px 32px; display: grid; grid-template-columns: 1fr minmax(280px, 430px) 180px; gap: 44px; align-items: center; }
.muchen-groupbuy-copy > p:not(.muchen-kicker) { max-width: 520px; color: var(--muchen-muted); font-size: 18px; margin: 20px 0 26px; }
.muchen-groupbuy-image { background: var(--muchen-oat); overflow: hidden; }
.muchen-groupbuy-image img { display: block; width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
.muchen-groupbuy-notes { display: grid; gap: 20px; }
.muchen-groupbuy-notes article { border-left: 2px solid var(--muchen-brick); padding-left: 16px; }
.muchen-groupbuy-notes strong, .muchen-groupbuy-notes span { display: block; }
.muchen-groupbuy-notes strong { font-size: 21px; }
.muchen-groupbuy-notes span { color: var(--muchen-muted); }
.muchen-story { padding: 100px 32px 115px; background: var(--muchen-brick); color: #fff; text-align: center; }
.muchen-story .muchen-kicker { color: #f6c6af; }
.muchen-story h2 { color: #fff; font-size: clamp(34px, 4vw, 58px); }
.muchen-story > p:last-child { max-width: 650px; margin: 22px auto 0; color: #fbe9df; font-size: 18px; }
.muchen-footer { position: relative; bottom: auto; width: 100%; border: 0; background: var(--muchen-ink); color: #f9f4ee; padding: 60px 32px 22px; }
.muchen-footer-inner { max-width: 1380px; margin: 0 auto; display: grid; grid-template-columns: 2fr repeat(3, 1fr); gap: 40px; }
.muchen-footer .muchen-brand { color: #fff; }
.muchen-footer-brand p { color: #d9cfc7; }
.muchen-footer h2 { margin: 5px 0 14px; font-size: 17px; }
.muchen-footer a { display: block; width: fit-content; margin: 6px 0; color: #d9cfc7; font-size: 15px; }
.muchen-footer a:hover, .muchen-footer a:focus { color: #fff; }
.muchen-footer-bottom { max-width: 1380px; margin: 48px auto 0; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.22); display: flex; justify-content: space-between; gap: 20px; color: #bcaea4; font-size: 13px; }
:focus-visible { outline: 3px solid #e7a18b; outline-offset: 3px; }

@media (max-width: 1100px) {
  .muchen-header-inner { gap: 18px; padding: 18px 24px; }
  .muchen-main-nav { gap: 14px; }
  .muchen-main-nav a { font-size: 14px; }
  .muchen-search input { width: 78px; }
  .muchen-card-grid { grid-template-columns: repeat(2, 1fr); }
  .muchen-category-grid { grid-template-columns: repeat(2, 1fr); }
  .muchen-groupbuy { grid-template-columns: 1fr minmax(250px, 330px); }
  .muchen-groupbuy-notes { grid-column: 1 / -1; grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 800px) {
  .muchen-header-inner { flex-wrap: wrap; }
  .muchen-brand { font-size: 26px; }
  .muchen-menu-toggle { display: inline-block; margin-left: auto; }
  .muchen-main-nav { display: none; order: 5; flex-basis: 100%; flex-direction: column; gap: 0; border-top: 1px solid var(--muchen-line); padding-top: 10px; }
  .muchen-main-nav.is-open { display: flex; }
  .muchen-main-nav a { padding: 10px 0; }
  .muchen-header-actions { margin-left: auto; }
  .muchen-search { display: none; }
  .muchen-hero { padding: 30px 20px 55px; grid-template-columns: 1fr; gap: 28px; }
  .muchen-hero-image, .muchen-hero-image img { min-height: 270px; }
  .muchen-hero-copy { order: -1; }
  .muchen-hero h1 { font-size: 46px; }
  .muchen-section, .muchen-groupbuy { padding: 58px 20px; }
  .muchen-section-heading.with-link { display: block; }
  .muchen-text-link { display: inline-block; margin-top: 14px; }
  .muchen-series-grid, .muchen-material-grid { grid-template-columns: 1fr; }
  .muchen-size-guide, .muchen-care-guide { grid-template-columns: 1fr; gap: 24px; }
  .muchen-series-card, .muchen-series-card img { min-height: 260px; }
  .muchen-trust-strip { padding: 58px 20px; }
  .muchen-groupbuy { grid-template-columns: 1fr; }
  .muchen-groupbuy-notes { grid-column: auto; grid-template-columns: 1fr; }
  .muchen-story { padding: 70px 20px 80px; }
  .muchen-footer { padding: 48px 20px 20px; }
  .muchen-footer-inner { grid-template-columns: 1fr 1fr; gap: 28px 20px; }
  .muchen-footer-brand { grid-column: 1 / -1; }
  .muchen-footer-bottom { margin-top: 30px; display: block; }
  .muchen-footer-bottom span { display: block; margin-top: 5px; }
}
@media (max-width: 520px) {
  .muchen-promo { font-size: 12px; padding: 7px 12px; }
  .muchen-header-inner { padding: 14px 16px; }
  .muchen-header-actions { gap: 2px; }
  .muchen-icon-link { font-size: 22px; }
  .muchen-card-grid { grid-template-columns: 1fr; }
  .muchen-category-page { padding: 18px 20px 58px; }
  .muchen-category-grid { grid-template-columns: 1fr; }
  .muchen-category-note { display: block; }
  .muchen-category-note span { display: block; margin-top: 8px; }
  .muchen-product-page { padding: 18px 20px 58px; }
  .muchen-product-layout { grid-template-columns: 1fr; gap: 20px; padding-bottom: 52px; }
  .muchen-product-detail { padding: 0; }
  .muchen-add-row { grid-template-columns: auto 78px 1fr; }
  .muchen-add-row input { width: 78px; }
  .muchen-button { width: 100%; }
}