:root {
  --ink: #17211b;
  --paper: #f4f0e7;
  --paper-2: #e9e2d5;
  --moss: #365344;
  --moss-dark: #173428;
  --amber: #d79b45;
  --line: rgba(23, 33, 27, .18);
  --white: #fffdf7;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
.shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(244, 240, 231, .86); backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}
.nav { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { text-decoration: none; display: flex; align-items: baseline; gap: 12px; font-weight: 700; letter-spacing: .08em; }
.brand b { font-family: Georgia, serif; font-size: 21px; }
.brand span { font-size: 13px; opacity: .66; }
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a { text-decoration: none; font-size: 14px; }
.nav-links a:last-child { border-bottom: 1px solid currentColor; padding-bottom: 4px; }

.hero {
  position: relative; min-height: 690px; overflow: hidden;
  display: grid; align-items: center; background: var(--moss-dark); color: var(--white);
}
.hero::before {
  content: ""; position: absolute; width: 560px; height: 560px; border-radius: 50%;
  right: -70px; top: 40px; background: radial-gradient(circle at 45% 45%, #ffd89c 0 5%, #d49c53 18%, rgba(212,156,83,.16) 46%, transparent 70%);
  filter: blur(1px); opacity: .9;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(23,52,40,.1), rgba(23,52,40,.15)), repeating-linear-gradient(90deg, transparent 0 119px, rgba(255,255,255,.045) 120px);
}
.hero-inner { position: relative; z-index: 2; padding: 110px 0 90px; }
.eyebrow { display: inline-block; font-size: 12px; letter-spacing: .2em; text-transform: uppercase; font-weight: 700; }
.hero h1 { margin: 25px 0 28px; font-family: "Songti SC", "STSong", Georgia, serif; font-size: clamp(54px, 8vw, 104px); line-height: .98; letter-spacing: -.045em; max-width: 850px; font-weight: 500; }
.hero-copy { max-width: 600px; font-size: 19px; line-height: 1.8; color: rgba(255,253,247,.8); }
.hero-actions { display: flex; gap: 16px; margin-top: 40px; flex-wrap: wrap; }
.button { min-height: 48px; padding: 0 23px; display: inline-flex; align-items: center; justify-content: center; text-decoration: none; border-radius: 999px; font-weight: 650; font-size: 14px; }
.button-light { background: var(--white); color: var(--moss-dark); }
.button-ghost { border: 1px solid rgba(255,255,255,.32); }
.button-dark { background: var(--moss-dark); color: var(--white); width: 100%; }
.preview-note { display: inline-flex; margin-top: 54px; font-size: 12px; color: rgba(255,255,255,.58); gap: 10px; align-items: center; }
.preview-note::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--amber); }

.section { padding: 112px 0; }
.section-kicker { font-size: 12px; letter-spacing: .18em; font-weight: 750; color: var(--moss); }
.section-title { margin: 18px 0 0; font-family: "Songti SC", "STSong", Georgia, serif; font-size: clamp(36px, 5vw, 66px); line-height: 1.18; font-weight: 500; letter-spacing: -.035em; max-width: 850px; }
.story-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 100px; align-items: start; }
.story-copy p { font-size: 18px; line-height: 1.9; margin: 0 0 24px; }
.principles { border-top: 1px solid var(--line); }
.principle { display: grid; grid-template-columns: 44px 1fr; gap: 18px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.principle span { color: var(--amber); font-family: Georgia, serif; }
.principle b { display: block; margin-bottom: 7px; }
.principle p { margin: 0; font-size: 14px; line-height: 1.7; opacity: .7; }

.work-section { background: var(--paper-2); }
.work-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 58px; background: var(--line); border: 1px solid var(--line); }
.work-item { background: var(--paper-2); padding: 32px; min-height: 260px; display: flex; flex-direction: column; justify-content: space-between; }
.work-item span { color: var(--amber); font-family: Georgia, serif; font-size: 34px; }
.work-item h3 { font-size: 22px; margin: 45px 0 12px; }
.work-item p { margin: 0; line-height: 1.75; opacity: .72; }

.jobs-head { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 48px; }
.jobs-head p { max-width: 390px; line-height: 1.8; opacity: .68; }
.job-list { border-top: 1px solid var(--line); }
.job-card { position: relative; text-decoration: none; padding: 28px 55px 28px 0; display: grid; grid-template-columns: 130px 1fr 290px; gap: 32px; align-items: center; border-bottom: 1px solid var(--line); transition: background .25s, padding .25s; }
.job-card:hover { background: rgba(255,255,255,.4); padding-left: 18px; }
.job-team { font-size: 12px; letter-spacing: .1em; color: var(--moss); }
.job-card h3 { margin: 0 0 8px; font-size: 22px; }
.job-card p { margin: 0; opacity: .65; line-height: 1.65; }
.job-meta { display: flex; gap: 14px; justify-content: end; font-size: 13px; opacity: .72; flex-wrap: wrap; }
.job-arrow { position: absolute; right: 12px; font-size: 20px; }

.culture { padding: 115px 0; background: var(--moss); color: var(--white); }
.culture-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 100px; }
.culture-quote { font-family: "Songti SC", "STSong", Georgia, serif; font-size: clamp(33px, 4vw, 54px); line-height: 1.42; margin: 0; }
.culture-copy p { font-size: 17px; line-height: 1.9; color: rgba(255,255,255,.72); }
.culture-list { margin-top: 34px; border-top: 1px solid rgba(255,255,255,.18); }
.culture-list div { padding: 18px 0; border-bottom: 1px solid rgba(255,255,255,.18); display: flex; justify-content: space-between; gap: 20px; }
.culture-list span { opacity: .55; }

.site-footer { padding: 50px 0; border-top: 1px solid var(--line); }
.footer-inner { display: flex; justify-content: space-between; gap: 30px; align-items: end; }
.footer-title { font-family: "Songti SC", "STSong", serif; font-size: 30px; margin-bottom: 8px; }
.footer-meta { font-size: 12px; opacity: .58; text-align: right; line-height: 1.8; }

.detail-page { min-height: 100vh; }
.detail-hero { padding: 90px 0 70px; border-bottom: 1px solid var(--line); }
.back-link { display: block; margin-bottom: 70px; text-decoration: none; font-size: 14px; }
.detail-hero h1 { font-family: "Songti SC", "STSong", Georgia, serif; font-size: clamp(44px, 6vw, 78px); line-height: 1.1; font-weight: 500; margin: 20px 0; max-width: 880px; }
.detail-intro { font-size: 20px; line-height: 1.75; max-width: 650px; opacity: .72; }
.detail-tags { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 30px; }
.detail-tags span { border: 1px solid var(--line); border-radius: 999px; padding: 8px 13px; font-size: 13px; }
.detail-grid { display: grid; grid-template-columns: 1fr 370px; gap: 100px; padding: 85px 0 120px; align-items: start; }
.detail-grid main section { margin-bottom: 70px; }
.detail-grid h2 { font-size: 24px; margin: 0 0 24px; }
.detail-grid li, .mission { font-size: 17px; line-height: 1.9; margin-bottom: 12px; }
.detail-grid ol, .detail-grid ul { padding-left: 23px; }
.mission { font-family: "Songti SC", "STSong", serif; font-size: 30px; line-height: 1.55; }
.apply-card { position: sticky; top: 105px; background: var(--white); padding: 34px; border-radius: 3px; box-shadow: 0 18px 45px rgba(23,33,27,.08); }
.apply-card h2 { font-family: "Songti SC", "STSong", serif; font-size: 28px; line-height: 1.45; }
.apply-card p { line-height: 1.8; opacity: .7; }
.apply-card small { display: block; margin-top: 18px; line-height: 1.6; opacity: .48; }

.reveal { opacity: 0; transform: translateY(16px); transition: opacity .65s ease, transform .65s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 860px) {
  .nav-links a:not(:last-child) { display: none; }
  .hero { min-height: 650px; }
  .hero::before { width: 390px; height: 390px; right: -150px; }
  .story-grid, .culture-grid, .detail-grid { grid-template-columns: 1fr; gap: 60px; }
  .work-grid { grid-template-columns: 1fr; }
  .work-item { min-height: 210px; }
  .jobs-head { display: block; }
  .job-card { grid-template-columns: 1fr; gap: 12px; }
  .job-meta { justify-content: start; }
  .apply-card { position: static; }
}

@media (max-width: 560px) {
  .shell { width: min(100% - 28px, 1180px); }
  .section { padding: 78px 0; }
  .hero-inner { padding: 90px 0 70px; }
  .hero h1 { font-size: 50px; }
  .hero-copy { font-size: 16px; }
  .story-copy p { font-size: 16px; }
  .footer-inner { display: block; }
  .footer-meta { text-align: left; margin-top: 24px; }
  .back-link { margin-bottom: 45px; }
  .detail-grid { padding-top: 55px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}