:root {
  --mineral: #f4f3f0;
  --surface: #ffffff;
  --graphite: #202326;
  --graphite-soft: #53585a;
  --graphite-faint: #7f8584;
  --line: #d8d7d2;
  --copper: #a34725;
  --copper-dark: #80351e;
  --forest: #17362f;
  --forest-soft: #294a42;
  --max-width: 1536px;
  --sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { min-width: 320px; margin: 0; color: var(--graphite); background: var(--mineral); font-family: var(--sans); font-size: 17px; line-height: 1.8; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; height: auto; }
a { color: var(--copper-dark); text-underline-offset: 4px; }
a:focus-visible, summary:focus-visible { outline: 3px solid #d27a56; outline-offset: 4px; }
.container { width: min(100%, var(--max-width)); margin: 0 auto; padding-inline: 48px; }

.site-header { position: relative; z-index: 10; border-bottom: 1px solid #e6e5e1; background: var(--surface); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; min-height: 112px; }
.brand { display: inline-flex; align-items: center; gap: 26px; color: var(--graphite); text-decoration: none; white-space: nowrap; }
.brand-name { font-size: 40px; font-weight: 790; letter-spacing: -.015em; line-height: 1.2; }
.brand-divider { width: 1px; height: 34px; background: #a7aaa7; }
.brand small { color: var(--graphite); font-size: 17px; font-weight: 550; }
.primary-nav { display: flex; align-items: center; gap: 42px; }
.primary-nav a { position: relative; display: block; padding: 43px 0 39px; color: #2b2d2f; font-size: 15px; line-height: 1; text-decoration: none; white-space: nowrap; }
.primary-nav a::after { content: ""; position: absolute; right: 0; bottom: 28px; left: 0; height: 2px; background: transparent; }
.primary-nav a:hover, .primary-nav a[aria-current="page"] { color: var(--copper-dark); }
.primary-nav a[aria-current="page"]::after { background: var(--copper); }

.home-hero { position: relative; isolation: isolate; min-height: 610px; overflow: hidden; color: #fff; background: #161918; }
.home-hero::after { content: ""; position: absolute; z-index: -1; inset: 0; background: linear-gradient(90deg, rgb(10 14 13 / 88%) 0%, rgb(10 14 13 / 68%) 38%, rgb(10 14 13 / 8%) 72%); }
.home-hero-image { position: absolute; z-index: -1; inset: 0; width: 105%; max-width: none; height: 100%; object-fit: cover; object-position: center; }
.home-hero-inner { display: flex; align-items: center; min-height: 610px; }
.home-hero-copy { width: min(960px, 68%); margin-left: 32px; padding: 70px 0 76px; transform: translateY(16px); }
.eyebrow, .section-index { margin: 0 0 10px; color: var(--copper-dark); font-family: var(--mono); font-size: 13px; font-weight: 700; letter-spacing: .12em; }
.home-hero .eyebrow { color: #d9a17d; }
h1 { margin: 0 0 12px; font-size: clamp(46px, 3.9vw, 60px); font-weight: 760; line-height: 1.18; letter-spacing: -.055em; }
.hero-subtitle { margin: 0 0 30px; color: #f0eee8; font-size: clamp(25px, 2.5vw, 38px); font-weight: 380; line-height: 1.35; letter-spacing: -.03em; }
.hero-intro { max-width: 36em; margin: 0; color: #d1d4d0; font-size: 18px; }
.hero-rule { width: 42px; height: 3px; margin: 18px 0 52px; border: 0; background: var(--copper); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 40px; }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 34px; min-width: 232px; min-height: 58px; padding: 0 26px; border: 1px solid var(--graphite); color: var(--graphite); font-size: 16px; font-weight: 560; line-height: 1; text-decoration: none; transition: .16s ease; }
.button-primary { border-color: var(--copper); background: var(--copper); color: #fff; }
.button-primary:hover { border-color: var(--copper-dark); background: var(--copper-dark); }
.home-hero .button-secondary { border-color: #d9ddd9; color: #fff; }
.button-secondary:hover { border-color: var(--forest); background: var(--forest); color: #fff; }

.information-path { color: #f4f5f2; background: var(--forest); }
.information-path-inner { display: grid; grid-template-columns: 400px minmax(0, 1fr); align-items: center; gap: 72px; min-height: 222px; padding-inline: 80px; }
.information-path-heading h2 { margin: 0; color: #fff; font-size: clamp(26px, 2.35vw, 36px); font-weight: 620; line-height: 1.4; letter-spacing: -.035em; }
.information-path-heading h2::after { content: ""; display: block; width: 42px; height: 2px; margin-top: 18px; background: var(--copper); }
.information-path-heading p { max-width: 32em; margin: 16px 0 0; color: #b8c6c1; font-size: 13px; }
.information-path-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin: 0; padding: 0; list-style: none; }
.information-path-list a { display: grid; grid-template-columns: 82px 1fr auto; align-items: center; gap: 18px; min-height: 94px; color: #fff; text-decoration: none; }
.path-icon { display: grid; place-items: center; width: 82px; height: 82px; background: var(--copper); font-size: 33px; font-weight: 620; }
.path-copy { display: grid; min-width: 0; gap: 1px; }
.path-number { color: #d8dfdc; font-family: var(--mono); font-size: 18px; }
.path-copy strong { font-size: 21px; font-weight: 620; line-height: 1.4; }
.path-copy span:last-child { color: #aebdb8; font-size: 12px; line-height: 1.5; }
.path-arrow { color: #9caea8; font-size: 24px; }

.home-details { padding-top: 72px; padding-bottom: 110px; }
.home-details section { scroll-margin-top: 24px; }
.home-details section + section { margin-top: 84px; }
h2 { margin: 0 0 20px; font-size: 30px; font-weight: 650; line-height: 1.4; letter-spacing: -.025em; }
h2::after { content: ""; display: block; width: 34px; height: 2px; margin-top: 13px; background: var(--copper); }
h3 { margin: 8px 0 10px; font-size: 20px; line-height: 1.4; }
p { margin: 0 0 16px; overflow-wrap: anywhere; }
.summary { max-width: 920px; }
.lede { max-width: 68ch; color: var(--graphite-soft); font-size: 19px; line-height: 1.9; }
.content-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.fact-card { position: relative; min-height: 230px; padding: 34px 30px; border: 1px solid var(--line); background: var(--surface); }
.fact-card p { color: var(--graphite-soft); }
.card-number { color: var(--copper); font-family: var(--mono); font-size: 13px; font-weight: 700; letter-spacing: .08em; }
.faq-grid { display: grid; gap: 10px; }
details { border: 1px solid var(--line); background: var(--surface); }
summary { padding: 22px 58px 22px 26px; cursor: pointer; font-weight: 650; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; float: right; margin-right: -34px; color: var(--copper); font-family: var(--mono); font-size: 22px; font-weight: 400; }
details[open] summary::after { content: "−"; }
details p { margin: 0; padding: 0 26px 24px; color: var(--graphite-soft); }
.contact-section { display: grid; grid-template-columns: 1fr minmax(360px, .8fr); align-items: end; gap: 60px; }
.contact-card { padding: 28px 30px; border-left: 4px solid var(--copper); background: var(--forest); color: #fff; }
.contact-card span { color: #aebdb8; font-size: 13px; letter-spacing: .08em; }
.contact-card strong { display: block; margin: 6px 0 12px; font-family: var(--mono); font-size: 24px; }
.contact-card p { margin: 0; color: #c5d0cc; font-size: 14px; }

.site-footer { padding: 68px 0 32px; color: #f4f5f2; background: #122d27; }
.footer-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 30px; padding-bottom: 24px; border-bottom: 1px solid #3b554e; }
.footer-heading p { margin: 0; color: #9db1aa; font-size: 14px; }
.footer-heading .footer-brand { color: #fff; font-size: 24px; font-weight: 620; letter-spacing: -.025em; }
.title-block { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin: 0; border: 1px solid #3b554e; background: #3b554e; }
.title-block > div { min-width: 0; padding: 17px 20px; background: var(--forest); }
.title-block dt { margin: 0 0 5px; color: #91a7a0; font-size: 11px; letter-spacing: .07em; }
.title-block dd { margin: 0; color: #edf1ef; font-size: 13px; overflow-wrap: anywhere; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-top: 26px; color: #8fa39d; font-size: 12px; }
.footer-bottom p { margin: 0; }

@media (max-width: 1240px) {
  .header-inner { flex-wrap: wrap; gap: 12px 28px; padding-top: 26px; }
  .primary-nav { width: 100%; justify-content: space-between; gap: 18px; }
  .primary-nav a { padding: 18px 0 22px; }
  .primary-nav a::after { bottom: 12px; }
  .information-path-inner { grid-template-columns: 1fr; gap: 30px; padding-top: 40px; padding-bottom: 42px; }
  .information-path-list { gap: 40px; }
}

@media (max-width: 860px) {
  .container { padding-inline: 24px; }
  .primary-nav { flex-wrap: wrap; justify-content: flex-start; gap: 6px 24px; }
  .home-hero, .home-hero-inner { min-height: 580px; }
  .home-hero-image { width: 100%; max-width: 100%; object-position: 58% center; }
  .home-hero::after { background: linear-gradient(90deg, rgb(10 14 13 / 70%), rgb(10 14 13 / 24%)); }
  .home-hero-copy { width: min(690px, 83%); padding: 58px 32px; border-left: 4px solid var(--copper); background: rgb(18 29 26 / 92%); transform: none; }
  .information-path-list, .content-grid { grid-template-columns: 1fr; }
  .information-path-list a { grid-template-columns: 64px 1fr auto; min-height: 80px; }
  .path-icon { width: 64px; height: 64px; }
  .contact-section { grid-template-columns: 1fr; }
  .title-block { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .container { padding-inline: 18px; }
  .header-inner { padding-top: 22px; }
  .brand { width: 100%; gap: 12px; white-space: normal; }
  .brand-name { font-size: 25px; }
  .brand-divider { height: 29px; }
  .brand small { padding-top: 2px; font-size: 12px; }
  .primary-nav { gap: 4px 20px; }
  .primary-nav a { padding: 10px 0 15px; font-size: 14px; }
  .home-hero, .home-hero-inner { min-height: 610px; }
  .home-hero-image { object-position: 66% center; }
  .home-hero-inner { align-items: flex-end; padding-top: 84px; padding-bottom: 34px; }
  .home-hero-copy { width: 100%; margin-left: 0; padding: 30px 24px 32px; }
  h1 { font-size: clamp(34px, 10vw, 43px); }
  .hero-subtitle { font-size: 23px; }
  .hero-intro { font-size: 15px; }
  .hero-rule { margin-bottom: 28px; }
  .hero-actions { display: grid; grid-template-columns: 1fr; gap: 12px; }
  .button { width: 100%; min-width: 0; }
  .information-path-inner { padding-top: 38px; padding-bottom: 42px; }
  .home-details { padding-top: 48px; padding-bottom: 72px; }
  .home-details section + section { margin-top: 66px; }
  h2 { font-size: 25px; }
  .lede { font-size: 17px; }
  .fact-card { min-height: 0; padding: 24px 22px; }
  .contact-card { padding: 24px 22px; }
  .footer-heading, .footer-bottom { display: block; }
  .footer-heading .footer-brand { margin-bottom: 8px; font-size: 20px; }
  .title-block { grid-template-columns: 1fr; }
  .footer-bottom p + p { margin-top: 12px; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }