:root {
  --ink: #292d23;
  --muted: #69705f;
  --brand: #6a8532;
  --brand-dark: #43581d;
  --brand-soft: #eef2e4;
  --canvas: #faf9f4;
  --surface: #ffffff;
  --line: #e3e5db;
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  color: var(--ink);
  background: var(--canvas);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; overflow-x: hidden; background: var(--canvas); }
a { color: inherit; text-decoration: none; }

.site-header { height: 76px; display: flex; align-items: center; justify-content: space-between; padding: 0 clamp(22px, 6vw, 84px); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.94); }
.brand img { display: block; width: 170px; height: auto; }
.workspace-link { padding: 10px 16px; border-radius: 10px; background: var(--brand-soft); color: var(--brand-dark); font-size: 14px; font-weight: 750; }
.workspace-link:hover { background: #e2e9d2; }

main { overflow: hidden; }
.hero { min-height: 670px; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(320px, .75fr); align-items: center; gap: clamp(48px, 8vw, 120px); padding: clamp(72px, 9vw, 128px) clamp(22px, 8vw, 120px); background: linear-gradient(135deg, #fdfcf8 0%, #f1f3e9 100%); position: relative; }
.hero::before { content: ""; position: absolute; width: 330px; height: 330px; left: -210px; bottom: -210px; border: 72px solid rgba(106,133,50,.08); transform: rotate(45deg); }
.hero::after { content: ""; position: absolute; width: 520px; height: 520px; right: -250px; top: -250px; border: 92px solid rgba(106,133,50,.065); transform: rotate(45deg); }
.hero-copy, .hero-panel { position: relative; z-index: 1; min-width: 0; }
.eyebrow { margin: 0 0 16px; color: var(--brand); font-size: 12px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
h1, h2, .hero-panel blockquote { font-family: "Source Han Serif SC", "Noto Serif CJK SC", "Songti SC", STSong, serif; }
h1 { max-width: 900px; margin: 0; font-size: clamp(48px, 6.2vw, 84px); font-weight: 700; line-height: 1.16; letter-spacing: -.045em; }
.lead { max-width: 720px; margin: 30px 0 0; color: var(--muted); font-size: 18px; line-height: 1.9; }
.hero-actions { display: flex; align-items: center; gap: 22px; margin-top: 38px; }
.primary-action, .secondary-action { display: inline-flex; align-items: center; justify-content: center; padding: 14px 21px; border-radius: 8px; font-weight: 750; }
.primary-action { background: var(--brand); color: white; }
.primary-action:hover { background: var(--brand-dark); }
.text-action { display: inline-flex; align-items: center; justify-content: center; padding: 14px 21px; border-radius: 8px; background: var(--brand); color: white; font-weight: 750; }
.text-action:hover { background: var(--brand-dark); }
.secondary-action { border: 1px solid rgba(106,133,50,.35); color: var(--brand-dark); }
.secondary-action:hover { background: var(--brand-soft); }

.hero-panel { padding: clamp(34px, 5vw, 60px); border: 1px solid rgba(255,255,255,.9); border-radius: 8px; background: rgba(255,255,255,.82); box-shadow: 0 30px 80px rgba(67,88,29,.1); backdrop-filter: blur(12px); }
.hero-panel > p { margin: 0 0 25px; color: var(--brand); font-size: 13px; font-weight: 800; letter-spacing: .12em; }
.hero-panel blockquote { margin: 0; color: var(--brand-dark); font-size: clamp(34px, 4vw, 54px); font-weight: 700; line-height: 1.45; }
.hero-panel > span { display: block; margin-top: 27px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; line-height: 1.8; }

.section { padding: clamp(74px, 9vw, 124px) clamp(22px, 8vw, 120px); }
.section-heading { max-width: 760px; margin-bottom: 48px; }
h2 { margin: 0; font-size: clamp(32px, 4vw, 52px); line-height: 1.18; letter-spacing: -.04em; }
.section-heading > p:last-child:not(.eyebrow) { margin: 20px 0 0; color: var(--muted); font-size: 16px; line-height: 1.8; }
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.service-grid article { min-height: 270px; padding: 32px; border: 1px solid var(--line); border-radius: 19px; background: var(--surface); }
.card-index { display: inline-grid; place-items: center; width: 42px; height: 42px; border-radius: 7px; background: var(--brand-soft); color: var(--brand); font-size: 12px; font-weight: 800; }
.service-grid h3 { margin: 48px 0 14px; font-size: 22px; }
.service-grid p, .workspace-cta p { margin: 0; color: var(--muted); line-height: 1.8; }

.operating-model { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(56px, 10vw, 150px); background: var(--surface); }
.model-copy { max-width: 580px; margin: 25px 0 0; color: var(--muted); line-height: 1.85; }
.model-steps { border-top: 1px solid var(--line); }
.model-steps p { display: grid; grid-template-columns: 46px 160px 1fr; gap: 18px; align-items: center; margin: 0; padding: 24px 0; border-bottom: 1px solid var(--line); }
.model-steps span { color: var(--brand); font-size: 12px; font-weight: 800; }
.model-steps small { color: var(--muted); font-size: 14px; line-height: 1.6; }

.responsibility { background: var(--brand-soft); }
.section-heading.compact { max-width: 900px; }
.responsibility-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.responsibility-grid p { margin: 0; padding: 28px; border-left: 3px solid var(--brand); background: rgba(255,255,255,.7); }
.responsibility-grid strong, .responsibility-grid span { display: block; }
.responsibility-grid span { margin-top: 10px; color: var(--muted); line-height: 1.7; }

.workspace-cta { margin: clamp(42px, 7vw, 90px) clamp(22px, 8vw, 120px); padding: clamp(38px, 6vw, 72px); display: flex; align-items: center; justify-content: space-between; gap: 36px; border-radius: 10px; background: var(--brand-dark); color: white; }
.workspace-cta .eyebrow { color: #cbd9ad; }
.workspace-cta p { margin-top: 16px; color: rgba(255,255,255,.68); }
.primary-action.light { flex: 0 0 auto; background: white; color: var(--brand-dark); }
.primary-action.light:hover { background: var(--brand-soft); }

footer { display: grid; grid-template-columns: 1fr auto; gap: 24px 42px; padding: 38px clamp(22px, 8vw, 120px); border-top: 1px solid var(--line); background: var(--surface); font-size: 13px; }
footer strong, footer span { display: block; }
footer span, footer p { margin: 7px 0 0; color: var(--muted); }
.footer-links a { color: var(--brand-dark); }
.footer-links a:hover { text-decoration: underline; }
footer p { grid-column: 1 / -1; font-size: 12px; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .hero-panel { max-width: 620px; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .service-grid article { min-height: auto; }
  .service-grid h3 { margin-top: 30px; }
  .operating-model { grid-template-columns: 1fr; }
  .responsibility-grid { grid-template-columns: 1fr; }
  .workspace-cta { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 560px) {
  .site-header { height: 68px; }
  .brand img { width: 142px; }
  .workspace-link { padding: 9px 12px; font-size: 12px; }
  .hero { min-height: auto; padding-top: 64px; }
  h1 { font-size: clamp(36px, 10.2vw, 40px); line-height: 1.22; letter-spacing: -.035em; overflow-wrap: anywhere; }
  .lead { font-size: 16px; }
  .hero-actions { align-items: stretch; flex-direction: column; text-align: center; }
  .hero-panel { padding: 24px; }
  .hero-panel blockquote { font-size: 34px; }
  .service-grid { grid-template-columns: 1fr; }
  .model-steps p { grid-template-columns: 38px 1fr; gap: 8px 14px; }
  .model-steps small { grid-column: 2; }
  footer { grid-template-columns: 1fr; }
  footer p { grid-column: auto; }
}