:root {
  color-scheme: light;
  --ink: #111714;
  --muted: #64706a;
  --paper: #f5f7f5;
  --white: #ffffff;
  --line: #d9dfdb;
  --green: #42715b;
  --signal: #d94835;
  --header-height: 76px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.page-width { width: min(1180px, calc(100% - 64px)); margin: 0 auto; }
.skip-link { position: fixed; top: -80px; left: 20px; z-index: 100; padding: 10px 14px; color: var(--white); background: var(--ink); }
.skip-link:focus { top: 16px; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  height: var(--header-height);
  display: flex;
  align-items: center;
  padding: 0 max(32px, calc((100vw - 1180px) / 2));
  color: var(--white);
  border-bottom: 1px solid rgba(255,255,255,.18);
  transition: background-color .25s ease, color .25s ease, border-color .25s ease;
}
.site-header.scrolled { color: var(--ink); background: rgba(255,255,255,.96); border-bottom-color: var(--line); }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; white-space: nowrap; }
.brand-mark { width: 26px; height: 26px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 3px; align-items: end; }
.brand-mark span { display: block; background: var(--signal); }
.brand-mark span:nth-child(1) { height: 55%; }
.brand-mark span:nth-child(2) { height: 100%; }
.brand-mark span:nth-child(3) { height: 76%; }
.brand-name { font-size: 18px; }
.brand-en { padding-left: 10px; border-left: 1px solid currentColor; font-size: 12px; font-weight: 600; opacity: .8; }
.desktop-nav { display: flex; gap: 34px; margin-left: auto; margin-right: 38px; font-size: 14px; }
.desktop-nav a, .mobile-nav a { position: relative; }
.desktop-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -7px; height: 1px; background: currentColor; transition: right .2s ease; }
.desktop-nav a:hover::after, .desktop-nav a:focus-visible::after { right: 0; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.language-switch { width: 42px; height: 34px; padding: 0; border: 1px solid currentColor; color: inherit; background: transparent; cursor: pointer; font-size: 12px; font-weight: 700; }
.menu-button { display: none; width: 38px; height: 38px; padding: 9px; border: 0; color: inherit; background: transparent; cursor: pointer; }
.menu-button span { display: block; height: 1px; margin: 5px 0; background: currentColor; transition: transform .2s ease, opacity .2s ease; }
.mobile-nav { display: none; }

.hero { position: relative; height: min(820px, 88svh); min-height: 610px; color: var(--white); overflow: hidden; background: #101511; }
.hero-image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero-shade { position: absolute; inset: 0; background: rgba(7,12,9,.32); }
.hero-shade::after { content: ""; position: absolute; inset: 0 42% 0 0; background: rgba(4,9,6,.48); }
.hero-content { position: relative; z-index: 2; height: 100%; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; padding-top: var(--header-height); }
.eyebrow { margin: 0 0 24px; font-size: 12px; line-height: 1.3; font-weight: 700; letter-spacing: 0; text-transform: uppercase; opacity: .8; }
.eyebrow.dark { color: var(--green); opacity: 1; }
.hero h1 { margin: 0; font-size: 72px; line-height: 1.05; font-weight: 650; }
.hero-lead { margin: 18px 0 0; font-size: 30px; line-height: 1.35; font-weight: 450; }
.hero-copy { max-width: 610px; margin: 22px 0 0; font-size: 17px; color: rgba(255,255,255,.85); }
.hero-links { display: flex; align-items: center; gap: 30px; margin-top: 36px; }
.primary-link { display: inline-flex; align-items: center; justify-content: space-between; gap: 34px; min-width: 190px; padding: 13px 16px; color: var(--ink); background: var(--white); font-size: 14px; font-weight: 650; transition: background-color .2s ease; }
.primary-link:hover { background: #edf1ee; }
.text-link { padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,.55); font-size: 14px; }
.scroll-cue { position: absolute; z-index: 3; left: 50%; bottom: 20px; width: 28px; height: 40px; border: 1px solid rgba(255,255,255,.5); border-radius: 18px; transform: translateX(-50%); }
.scroll-cue span { position: absolute; top: 8px; left: 12px; width: 2px; height: 8px; background: var(--white); animation: scroll-cue 1.8s infinite; }
@keyframes scroll-cue { 0% { opacity: 0; transform: translateY(0); } 35% { opacity: 1; } 100% { opacity: 0; transform: translateY(14px); } }

.principles { background: var(--white); border-bottom: 1px solid var(--line); }
.principle-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.principle-grid div { min-height: 140px; padding: 32px 28px; border-right: 1px solid var(--line); }
.principle-grid div:first-child { border-left: 1px solid var(--line); }
.principle-grid strong, .principle-grid span { display: block; }
.principle-grid strong { margin-bottom: 8px; font-size: 17px; }
.principle-grid span { color: var(--muted); font-size: 13px; }

.section { padding: 110px 0; }
.section-heading { display: grid; grid-template-columns: 90px minmax(0, 720px); gap: 24px; margin-bottom: 64px; }
.section-heading.compact { margin-bottom: 50px; }
.section-index { margin: 5px 0 0; color: var(--signal); font-size: 13px; font-weight: 700; }
.section-heading h2, .space-copy h2, .about h2 { margin: 0; font-size: 44px; line-height: 1.25; font-weight: 600; }
.section-heading > div > p:last-child { max-width: 620px; margin: 20px 0 0; color: var(--muted); font-size: 16px; }
.solution-list { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.solution-item { min-height: 430px; padding: 34px 34px 40px; border-left: 1px solid var(--line); background: transparent; }
.solution-item:last-child { border-right: 1px solid var(--line); }
.solution-item.featured { background: var(--white); }
.solution-number { margin: 0 0 62px; color: var(--signal); font-size: 12px; font-weight: 700; }
.solution-item h3 { margin: 0 0 18px; font-size: 25px; font-weight: 600; }
.solution-item > p:nth-of-type(2) { min-height: 104px; margin: 0; color: var(--muted); font-size: 14px; }
.solution-item ul { margin: 30px 0 0; padding: 20px 0 0; list-style: none; border-top: 1px solid var(--line); }
.solution-item li { position: relative; margin: 8px 0; padding-left: 16px; font-size: 13px; }
.solution-item li::before { content: ""; position: absolute; left: 0; top: .75em; width: 5px; height: 5px; background: var(--green); }

.space-showcase { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(380px, .65fr); min-height: 650px; color: var(--white); background: var(--ink); }
.space-image-wrap { min-height: 650px; overflow: hidden; }
.space-image-wrap img { width: 100%; height: 100%; object-fit: cover; }
.space-copy { display: flex; flex-direction: column; justify-content: center; padding: 72px max(48px, calc((100vw - 1180px) / 2)); padding-left: 64px; }
.space-copy > p:nth-of-type(2) { margin: 24px 0 34px; color: #bcc5c0; font-size: 15px; }
.space-copy dl { margin: 0; border-top: 1px solid #354039; }
.space-copy dl div { display: grid; grid-template-columns: 64px 1fr; gap: 14px; padding: 18px 0; border-bottom: 1px solid #354039; }
.space-copy dt { color: var(--white); font-weight: 650; }
.space-copy dd { margin: 0; color: #9eaaa4; font-size: 13px; }

.capabilities { background: var(--white); }
.capability-table { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line); }
.capability-table article { display: grid; grid-template-columns: 48px 160px 1fr; align-items: start; gap: 20px; min-height: 150px; padding: 32px 24px 28px 0; border-bottom: 1px solid var(--line); }
.capability-table article:nth-child(odd) { padding-right: 42px; border-right: 1px solid var(--line); }
.capability-table article:nth-child(even) { padding-left: 42px; }
.capability-table span { color: var(--signal); font-size: 12px; font-weight: 700; }
.capability-table h3 { margin: 0; font-size: 19px; font-weight: 600; }
.capability-table p { margin: 0; color: var(--muted); font-size: 14px; }

.about { background: #e9eeea; }
.about-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; }
.about-heading .section-index { margin-bottom: 48px; }
.about-copy { padding-top: 80px; }
.about-copy > p { margin: 0 0 22px; color: #46514b; font-size: 17px; }
.focus-line { display: grid; grid-template-columns: 110px 1fr; gap: 20px; margin-top: 54px; padding: 22px 0; border-top: 1px solid #bcc6c0; border-bottom: 1px solid #bcc6c0; font-size: 14px; }
.focus-line span:first-child { font-weight: 650; }
.focus-line span:last-child { color: var(--green); }

.site-footer { color: #ced5d1; background: #0b100d; }
.footer-main { min-height: 220px; display: flex; align-items: center; justify-content: space-between; }
.footer-brand { color: var(--white); font-size: 22px; font-weight: 650; }
.footer-brand span { margin-left: 8px; color: #829089; font-size: 12px; }
.footer-main p { margin: 10px 0 0; color: #829089; font-size: 13px; }
.back-top { display: flex; align-items: center; gap: 20px; padding: 10px 0; color: var(--white); border-bottom: 1px solid #455149; font-size: 13px; }
.footer-legal { min-height: 68px; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid #263029; color: #7e8a83; font-size: 12px; }
.footer-legal p { margin: 0; }
.footer-legal a:hover, .footer-legal a:focus-visible { color: var(--white); }

:focus-visible { outline: 2px solid var(--signal); outline-offset: 4px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; } }

@media (max-width: 960px) {
  .page-width { width: min(100% - 40px, 760px); }
  .site-header { padding: 0 20px; }
  .desktop-nav { display: none; }
  .menu-button { display: block; }
  .menu-button[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .menu-button[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-button[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
  .mobile-nav { position: fixed; inset: var(--header-height) 0 auto; display: grid; padding: 26px 20px 34px; color: var(--ink); background: var(--white); border-bottom: 1px solid var(--line); transform: translateY(-130%); transition: transform .2s ease; }
  .mobile-nav.open { transform: translateY(0); }
  .mobile-nav a { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .hero h1 { font-size: 58px; }
  .hero-shade::after { right: 20%; }
  .principle-grid { grid-template-columns: repeat(2, 1fr); }
  .principle-grid div:nth-child(3) { border-left: 1px solid var(--line); }
  .principle-grid div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .solution-list { grid-template-columns: 1fr; }
  .solution-item { min-height: 0; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .solution-item:last-child { border-bottom: 0; }
  .solution-number { margin-bottom: 30px; }
  .solution-item > p:nth-of-type(2) { min-height: 0; }
  .space-showcase { grid-template-columns: 1fr; }
  .space-image-wrap { min-height: 460px; }
  .space-copy { padding: 72px max(20px, calc((100vw - 760px) / 2)); }
  .capability-table article { grid-template-columns: 44px 130px 1fr; }
  .about-layout { gap: 60px; }
}

@media (max-width: 680px) {
  :root { --header-height: 66px; }
  .page-width { width: calc(100% - 36px); }
  .brand-en { display: none; }
  .brand-name { font-size: 16px; }
  .language-switch { width: 38px; height: 32px; }
  .hero { height: 84svh; min-height: 570px; }
  .hero-image { object-position: 60% center; }
  .hero-shade { background: rgba(5,10,7,.43); }
  .hero-shade::after { right: 0; background: rgba(4,9,6,.28); }
  .hero h1 { font-size: 48px; }
  .hero-lead { margin-top: 14px; font-size: 24px; }
  .hero-copy { margin-top: 18px; font-size: 15px; }
  .hero-links { align-items: stretch; flex-direction: column; gap: 12px; margin-top: 28px; }
  .primary-link { min-width: 180px; }
  .text-link { width: max-content; }
  .scroll-cue { display: none; }
  .principle-grid { grid-template-columns: 1fr; }
  .principle-grid div { min-height: 108px; padding: 24px 20px; border-left: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .principle-grid div:last-child { border-bottom: 0; }
  .section { padding: 76px 0; }
  .section-heading { grid-template-columns: 46px 1fr; gap: 8px; margin-bottom: 42px; }
  .section-heading h2, .space-copy h2, .about h2 { font-size: 34px; }
  .solution-item { padding: 28px 24px 34px; }
  .space-image-wrap { min-height: 340px; }
  .space-copy { padding: 60px 18px; }
  .space-copy dl div { grid-template-columns: 54px 1fr; }
  .capability-table { grid-template-columns: 1fr; }
  .capability-table article, .capability-table article:nth-child(odd), .capability-table article:nth-child(even) { grid-template-columns: 36px 1fr; gap: 12px; min-height: 0; padding: 25px 0; border-right: 0; }
  .capability-table p { grid-column: 2; }
  .about-layout { grid-template-columns: 1fr; gap: 16px; }
  .about-heading .section-index { margin-bottom: 34px; }
  .about-copy { padding-top: 18px; }
  .about-copy > p { font-size: 15px; }
  .focus-line { grid-template-columns: 1fr; gap: 4px; }
  .footer-main { min-height: 190px; align-items: flex-start; flex-direction: column; justify-content: center; gap: 32px; }
  .footer-legal { min-height: 92px; align-items: flex-start; flex-direction: column; justify-content: center; gap: 5px; }
}