:root {
  --paper: #fbfaf7;
  --surface: #ffffff;
  --mist: #eef5f2;
  --butter: #f7f0d6;
  --ink: #173d3a;
  --muted: #5d6f6b;
  --teal: #2f7c73;
  --coral: #e8755e;
  --coral-dark: #c65a47;
  --border: #d9e5df;
  --shadow: 0 18px 42px rgba(23, 61, 58, 0.09);
  --radius: 18px;
  --content: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Aptos, "Segoe UI", "Microsoft YaHei UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
}
body.menu-open { overflow: hidden; }
img, video { display: block; max-width: 100%; }
button, a { font: inherit; }
a { color: inherit; text-decoration: none; }
button { border: 0; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 {
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 700;
  letter-spacing: 0;
}
h1 { margin-bottom: 24px; font-size: clamp(2.8rem, 6vw, 5.5rem); line-height: .98; }
h2 { margin-bottom: 18px; font-size: clamp(2.1rem, 4.3vw, 4rem); line-height: 1.03; }
h3 { margin-bottom: 10px; font-size: 1.38rem; line-height: 1.2; }
p { margin-bottom: 20px; color: var(--muted); }
.container { width: min(calc(100% - 48px), var(--content)); margin-inline: auto; }
.skip-link {
  position: fixed; z-index: 200; top: 12px; left: 12px; padding: 10px 14px;
  transform: translateY(-150%); border-radius: 8px; background: var(--ink); color: white;
}
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid var(--coral); outline-offset: 3px; }
.eyebrow {
  display: block; margin-bottom: 14px; color: var(--teal); font-size: .75rem;
  font-weight: 800; letter-spacing: .12em; text-transform: uppercase;
}

.site-header {
  position: sticky; z-index: 100; top: 0; border-bottom: 1px solid var(--border);
  background: rgba(251, 250, 247, .94); backdrop-filter: blur(16px);
}
.header-inner { min-height: 78px; display: flex; align-items: center; gap: 26px; }
.brand { display: inline-flex; align-items: center; gap: 12px; margin-right: auto; color: var(--ink); font-size: 1rem; font-weight: 800; }
.brand-mark { width: 30px; display: grid; grid-template-columns: repeat(2, 12px); gap: 5px; }
.brand-mark span { aspect-ratio: 1; border-radius: 50%; background: var(--teal); }
.brand-mark span:nth-child(2) { background: var(--coral); }
.brand-mark span:nth-child(3) { background: #d4bf68; }
.brand-mark span:nth-child(4) { background: #8eb7aa; }
.site-nav { display: flex; align-items: center; gap: 26px; color: var(--muted); font-size: .92rem; font-weight: 700; }
.site-nav a { padding-block: 10px; transition: color 160ms ease; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--ink); }
.language-switch { display: inline-flex; overflow: hidden; border: 1px solid var(--border); border-radius: 999px; background: var(--surface); }
.language-switch button { min-width: 42px; padding: 7px 10px; background: transparent; color: var(--muted); cursor: pointer; }
.language-switch button[aria-pressed="true"] { background: var(--ink); color: white; }
.menu-toggle { width: 44px; height: 44px; display: none; align-items: center; justify-content: center; border: 1px solid var(--border); border-radius: 50%; background: var(--surface); color: var(--ink); cursor: pointer; }
.menu-toggle-lines, .menu-toggle-lines::before, .menu-toggle-lines::after { width: 19px; height: 2px; display: block; background: currentColor; content: ""; transition: transform 180ms ease, opacity 180ms ease; }
.menu-toggle-lines { position: relative; }
.menu-toggle-lines::before, .menu-toggle-lines::after { position: absolute; }
.menu-toggle-lines::before { top: -6px; }
.menu-toggle-lines::after { top: 6px; }
.menu-toggle[aria-expanded="true"] .menu-toggle-lines { background: transparent; }
.menu-toggle[aria-expanded="true"] .menu-toggle-lines::before { top: 0; transform: rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-toggle-lines::after { top: 0; transform: rotate(-45deg); }

.button, .button-secondary, .text-link { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 48px; padding: 0 20px; border-radius: 999px; font-size: .9rem; font-weight: 800; line-height: 1; transition: transform 160ms ease, background 160ms ease, border-color 160ms ease; }
.button { border: 1px solid var(--coral); background: var(--coral); color: white; }
.button:hover { border-color: var(--coral-dark); background: var(--coral-dark); transform: translateY(-2px); }
.button-secondary { border: 1px solid var(--ink); background: transparent; color: var(--ink); }
.button-secondary:hover { background: var(--ink); color: white; transform: translateY(-2px); }
.text-link { min-height: auto; justify-content: flex-start; padding: 0; border-radius: 0; color: var(--ink); }
.text-link::after, .button.arrow::after, .button-secondary.arrow::after { content: "->"; }
.header-cta { min-height: 42px; padding-inline: 17px; }

.hero { border-bottom: 1px solid var(--border); background: var(--mist); }
.hero-grid { min-height: min(720px, calc(100vh - 78px)); display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 72px; padding-block: 72px 70px; }
.hero-copy { max-width: 560px; }
.hero-copy > p { max-width: 510px; margin-bottom: 30px; font-size: clamp(1.03rem, 1.6vw, 1.18rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.proof-row { display: flex; flex-wrap: wrap; gap: 0; margin-top: 44px; padding-top: 23px; border-top: 1px solid rgba(23, 61, 58, .18); }
.proof-item { min-width: 135px; padding-right: 22px; margin-right: 22px; border-right: 1px solid rgba(23, 61, 58, .18); }
.proof-item:last-child { border-right: 0; }
.proof-value { display: block; color: var(--ink); font-family: Georgia, "Times New Roman", serif; font-size: 1.4rem; }
.proof-label { color: var(--muted); font-size: .75rem; }
.hero-media { min-width: 0; }
.hero-photo { overflow: hidden; margin: 0; border: 12px solid white; border-radius: var(--radius); background: white; box-shadow: var(--shadow); }
.hero-photo img { width: 100%; aspect-ratio: 1.12 / 1; object-fit: contain; background: white; }
.media-caption { margin-top: 13px; color: var(--muted); font-size: .76rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }

.section { padding-block: 100px; }
.section-heading { display: grid; grid-template-columns: 1fr minmax(260px, .62fr); align-items: end; gap: 50px; margin-bottom: 42px; }
.section-heading h2 { margin-bottom: 0; }
.section-heading p { margin-bottom: 4px; }
.product-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.product-card { overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); transition: transform 180ms ease, box-shadow 180ms ease; }
.product-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.product-image { padding: 12px; border-bottom: 1px solid var(--border); background: var(--mist); }
.product-image img { width: 100%; aspect-ratio: 1 / 1; object-fit: contain; background: white; }
.product-content { display: grid; gap: 11px; padding: 21px; }
.product-kicker { color: var(--coral-dark); font-size: .7rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.product-content h3, .product-content p { margin-bottom: 0; }
.product-content p { font-size: .93rem; }

.value-section { border-block: 1px solid #e7ddbc; background: var(--butter); }
.value-layout { display: grid; grid-template-columns: .78fr 1.22fr; gap: 72px; }
.value-intro p { max-width: 420px; }
.value-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.value-item { padding-top: 19px; border-top: 2px solid var(--coral); }
.value-item:nth-child(2) { border-color: var(--teal); }
.value-item:nth-child(3) { border-color: #c3ad55; }
.value-index { display: block; margin-bottom: 24px; color: var(--ink); font-size: .73rem; font-weight: 800; }
.about-section { background: #e5f0eb; }
.about-layout { display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 72px; }
.about-media { min-width: 0; }
.about-media img { width: 100%; aspect-ratio: 1.15 / 1; object-fit: contain; padding: 12px; border: 1px solid var(--border); border-radius: var(--radius); background: white; box-shadow: var(--shadow); }
.about-tag { display: inline-block; margin-top: 14px; padding: 8px 13px; border-radius: 999px; background: var(--coral); color: white; font-size: .77rem; font-weight: 800; letter-spacing: .04em; }
.about-copy > p { max-width: 650px; }
.contact-inline { display: flex; flex-wrap: wrap; gap: 12px 28px; margin-top: 26px; padding-top: 22px; border-top: 1px solid rgba(23, 61, 58, .18); color: var(--ink); font-weight: 800; }
.contact-section { scroll-margin-top: 86px; border-top: 1px solid #edc4b8; background: #f8e4dd; }
.contact-layout { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 46px; padding-block: 62px; }
.contact-layout h2 { margin-bottom: 12px; }
.contact-topics { display: flex; flex-wrap: wrap; gap: 7px 22px; color: var(--ink); font-size: .9rem; font-weight: 700; }

.site-footer { background: var(--ink); color: rgba(255, 255, 255, .78); }
.footer-main { display: grid; grid-template-columns: 1.25fr .75fr 1fr; gap: 60px; padding-block: 58px; }
.site-footer .brand { margin-bottom: 20px; color: white; }
.footer-copy { max-width: 440px; color: rgba(255, 255, 255, .65); }
.footer-heading { margin-bottom: 14px; color: white; font-family: inherit; font-size: .8rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.footer-links, .footer-contact { display: grid; gap: 9px; color: rgba(255, 255, 255, .72); }
.footer-links a:hover, .footer-contact a:hover { color: white; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-block: 20px; border-top: 1px solid rgba(255, 255, 255, .16); color: rgba(255, 255, 255, .52); font-size: .82rem; }

.breadcrumb { padding-block: 28px; color: var(--muted); font-size: .88rem; }
.breadcrumb a { color: var(--ink); font-weight: 700; }
.breadcrumb span::before { margin-inline: 10px; content: "/"; color: var(--border); }
.detail-hero { background: var(--mist); }
.detail-hero-grid { min-height: 590px; display: grid; grid-template-columns: .88fr 1.12fr; align-items: center; gap: 72px; padding-block: 52px 70px; }
.detail-lead { max-width: 560px; font-size: 1.1rem; }
.feature-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin: 28px 0 34px; padding: 0; list-style: none; }
.feature-list li { position: relative; padding: 12px 14px 12px 34px; border-bottom: 1px solid var(--border); color: var(--ink); font-size: .9rem; font-weight: 700; }
.feature-list li::before { position: absolute; top: 18px; left: 1px; width: 16px; height: 16px; display: grid; place-items: center; border-radius: 50%; background: var(--coral); color: white; content: "✓"; font-size: .64rem; font-weight: 900; }
.detail-media { min-width: 0; }
.detail-main-image { width: 100%; aspect-ratio: 1.05 / 1; object-fit: contain; object-position: center; padding: 16px; border: 12px solid white; border-radius: var(--radius); background: white; box-shadow: var(--shadow); }
.product-facts { border-bottom: 1px solid var(--border); background: var(--surface); }
.facts-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 44px; padding-block: 52px; }
.fact { padding-top: 16px; border-top: 2px solid var(--coral); }
.fact:nth-child(2) { border-color: var(--teal); }
.fact:nth-child(3) { border-color: #c3ad55; }
.fact p { margin-bottom: 0; }
.gallery-section { background: var(--paper); }
.gallery-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.gallery-grid img, .gallery-grid video { width: 100%; aspect-ratio: 4 / 3; object-fit: contain; border: 1px solid var(--border); border-radius: var(--radius); background: white; }
.gallery-grid img { padding: 12px; }
.gallery-grid video { background: var(--ink); }
.detail-contact { background: #e5f0eb; }
.detail-contact-layout { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 40px; }
[data-lang-panel] { display: none; }
[data-lang-panel].is-active { display: block; }

@media (max-width: 1020px) {
  .header-cta { display: none; }
  .hero-grid, .detail-hero-grid { gap: 42px; }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-main { grid-template-columns: 1fr .7fr 1fr; gap: 34px; }
}
@media (max-width: 820px) {
  .container { width: min(calc(100% - 36px), var(--content)); }
  .menu-toggle { display: inline-flex; }
  .site-nav { position: fixed; inset: 78px 0 auto; display: grid; gap: 0; padding: 18px; transform: translateY(-130%); border-bottom: 1px solid var(--border); background: var(--paper); opacity: 0; visibility: hidden; transition: transform 180ms ease, opacity 180ms ease, visibility 180ms ease; }
  .site-nav.is-open { transform: translateY(0); opacity: 1; visibility: visible; }
  .site-nav a { padding: 14px 10px; border-bottom: 1px solid var(--border); }
  .site-nav a:last-child { border-bottom: 0; }
  .hero-grid, .detail-hero-grid, .value-layout, .about-layout, .section-heading, .contact-layout, .detail-contact-layout { grid-template-columns: 1fr; }
  .hero-grid { min-height: auto; padding-top: 58px; }
  .section-heading, .value-layout, .about-layout { gap: 36px; }
  .value-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .contact-layout, .detail-contact-layout { justify-items: start; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-main > :first-child { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  h1 { font-size: clamp(2.5rem, 14vw, 4rem); }
  h2 { font-size: clamp(2rem, 11vw, 3rem); }
  .container { width: min(calc(100% - 28px), var(--content)); }
  .header-inner { gap: 12px; }
  .brand { font-size: .88rem; }
  .language-switch button { min-width: 38px; padding-inline: 7px; }
  .hero-grid, .detail-hero-grid { padding-block: 46px; }
  .hero-actions { display: grid; }
  .hero-actions .button, .hero-actions .button-secondary { width: 100%; }
  .proof-item { min-width: 50%; padding-right: 14px; margin: 0 0 16px; }
  .section { padding-block: 72px; }
  .product-grid, .value-grid, .feature-list, .facts-grid, .gallery-grid, .footer-main { grid-template-columns: 1fr; }
  .detail-main-image { aspect-ratio: 1 / 1; }
  .contact-layout, .detail-contact-layout { gap: 24px; }
  .footer-main > :first-child { grid-column: auto; }
  .footer-bottom { align-items: flex-start; flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}