:root {
  --paper: #f7f2e9;
  --paper-light: #fffdf8;
  --ink: #273a35;
  --green: #18564d;
  --orange: #b86529;
  --gold: #c4a66b;
  --muted: #79857f;
  --line: #d8cfbf;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

main {
  min-height: 100vh;
  overflow: hidden;
  background:
    radial-gradient(circle at 8% 12%, rgba(196, 166, 107, .16), transparent 24rem),
    var(--paper);
}

.site-header {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 24px 0 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(39, 58, 53, .16);
}
.brand img { width: 150px; height: auto; }
.site-header p {
  margin: 0;
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .18em;
}

.hero {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 58px 0 86px;
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: clamp(42px, 7vw, 92px);
  align-items: center;
}
.kicker {
  margin: 0 0 22px;
  color: var(--green);
  font-family: Arial, sans-serif;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .42em;
}
.hero h1 {
  margin: 0;
  color: var(--green);
  font-size: clamp(66px, 7vw, 104px);
  line-height: .98;
  font-weight: 900;
  letter-spacing: -.04em;
}
.slogan {
  margin: 30px 0 0;
  color: var(--orange);
  font-family: KaiTi, STKaiti, "楷体", serif;
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.36;
  font-weight: 700;
}
.slogan-en {
  margin: 18px 0 0;
  color: #896f5d;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 15px;
  line-height: 1.55;
}
.hero-note {
  margin-top: 54px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.hero-note span {
  color: var(--gold);
  font-family: Georgia, serif;
  font-size: 32px;
  line-height: 1;
}
.hero-note p {
  margin: 0;
  padding-left: 16px;
  border-left: 1px solid var(--gold);
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.hero-photo {
  position: relative;
  margin: 0;
  padding: 12px 12px 0;
  background: var(--paper-light);
  box-shadow: 0 24px 60px rgba(39, 58, 53, .13);
  transform: rotate(.6deg);
}
.hero-photo::before {
  content: "";
  position: absolute;
  left: -18px;
  bottom: 56px;
  width: 5px;
  height: 92px;
  background: linear-gradient(var(--green) 0 34%, #58abc7 34% 66%, #e89942 66%);
}
.hero-photo img {
  width: 100%;
  aspect-ratio: 1.34 / 1;
  object-fit: cover;
  object-position: center;
}
.hero-photo figcaption {
  padding: 13px 2px 15px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.5;
}
.hero-photo figcaption span {
  margin-right: 9px;
  color: var(--orange);
  font-weight: 800;
}

.section-kicker {
  margin: 0 0 16px;
  color: var(--orange);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .2em;
}
.story-section {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 112px 0 118px;
  display: grid;
  grid-template-columns: 120px .9fr 1.1fr;
  gap: clamp(28px, 5vw, 72px);
  border-top: 1px solid var(--line);
}
.section-mark { display: flex; flex-direction: column; align-items: flex-start; }
.section-mark span { color: var(--gold); font: 34px/1 Georgia, serif; }
.section-mark i { width: 1px; height: 70px; margin: 15px 0; background: var(--gold); }
.section-mark small { color: var(--muted); font: 700 10px/1 Arial, sans-serif; letter-spacing: .2em; writing-mode: vertical-rl; }
.story-heading h2,
.section-intro h2,
.principles-heading h2,
.partnership-inner h2 {
  margin: 0;
  color: var(--green);
  font-size: clamp(36px, 4.2vw, 60px);
  line-height: 1.2;
  letter-spacing: -.045em;
}
.story-copy { padding-top: 32px; color: #725b4b; font-size: 18px; line-height: 1.95; }
.story-copy p { margin: 0 0 18px; }

.process-section {
  padding: 110px max(20px, calc((100vw - 1180px) / 2)) 120px;
  background: var(--green);
  color: #f9f4e9;
}
.section-intro { display: grid; grid-template-columns: .8fr 1.2fr; column-gap: 60px; align-items: end; }
.section-intro .section-kicker { grid-column: 1 / -1; color: #e7ae6f; }
.section-intro h2 { color: #fffaf0; }
.section-intro > p:last-child { margin: 0 0 8px; color: #c7d8d3; font-size: 16px; line-height: 1.8; max-width: 520px; }
.process-list {
  margin: 76px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(255,255,255,.32);
}
.process-list li { position: relative; padding: 34px 26px 6px 0; }
.process-list li:not(:last-child) { border-right: 1px solid rgba(255,255,255,.18); margin-right: 26px; }
.process-list li::before { content: ""; position: absolute; top: -5px; left: 0; width: 9px; height: 9px; border-radius: 50%; background: #e7ae6f; }
.process-list span { color: #e7ae6f; font: 18px/1 Georgia, serif; }
.process-list h3 { margin: 24px 0 12px; font-size: 23px; }
.process-list p { margin: 0; color: #c7d8d3; font-size: 14px; line-height: 1.75; }

.principles-section {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 118px 0 128px;
}
.principles-heading { display: grid; grid-template-columns: 1fr 1.25fr; gap: 60px; align-items: end; }
.principles-heading .section-kicker { align-self: start; }
.principles-grid { margin-top: 78px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.principles-grid article {
  min-height: 310px;
  padding: 34px 32px;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  background: rgba(255,253,248,.46);
}
.principles-grid article:nth-child(2) { transform: translateY(24px); }
.principles-grid span { color: var(--orange); font-size: 13px; font-weight: 900; letter-spacing: .16em; }
.principles-grid h3 { margin: 46px 0 16px; color: var(--green); font-size: 25px; line-height: 1.45; }
.principles-grid p { margin: auto 0 0; color: var(--muted); font-size: 15px; line-height: 1.8; }

.partnership-section {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto 110px;
  padding: 72px;
  display: grid;
  grid-template-columns: 1.3fr .7fr;
  gap: 74px;
  background: #efe5d4;
  position: relative;
}
.partnership-section::after { content: ""; position: absolute; right: 0; top: 0; width: 9px; height: 100%; background: linear-gradient(#b8bf68 0 25%, #55accb 25% 50%, #eb963d 50% 75%, #a98cbd 75%); }
.partnership-inner blockquote { margin: 40px 0 24px; padding-left: 23px; border-left: 3px solid var(--orange); color: var(--ink); font-size: 21px; line-height: 1.75; font-weight: 800; }
.partnership-note { margin: 0; color: #756252; font-size: 15px; line-height: 1.85; }
.signature-card { align-self: stretch; padding: 31px; display: flex; flex-direction: column; background: var(--paper-light); box-shadow: 0 18px 40px rgba(49,60,56,.08); }
.signature-card > span { color: var(--green); font-size: 14px; font-weight: 900; letter-spacing: .16em; }
.signature-card p { margin: 24px 0; color: var(--muted); font-family: KaiTi, STKaiti, "楷体", serif; font-size: 22px; line-height: 1.65; }
.signature-line { margin-top: auto; padding: 12px 6px; border-bottom: 2px solid var(--orange); color: #b1afa8; font-family: KaiTi, STKaiti, "楷体", serif; font-size: 18px; }

.site-footer {
  padding: 48px max(20px, calc((100vw - 1180px) / 2)) 62px;
  display: grid;
  grid-template-columns: 160px 1fr 1fr;
  gap: 34px;
  align-items: center;
  border-top: 1px solid var(--line);
}
.site-footer img { width: 150px; }
.site-footer div { display: flex; flex-direction: column; gap: 7px; }
.site-footer strong { color: var(--green); font-size: 21px; }
.site-footer span { color: var(--muted); font: 700 10px/1 Arial, sans-serif; letter-spacing: .22em; }
.site-footer p { margin: 0; justify-self: end; color: var(--muted); font-size: 12px; line-height: 1.8; text-align: right; }

@media (max-width: 760px) {
  .site-header {
    width: min(100% - 32px, 560px);
    padding-top: 18px;
  }
  .brand img { width: 112px; }
  .site-header p { max-width: 150px; font-size: 10px; line-height: 1.5; text-align: right; }
  .hero {
    width: min(100% - 32px, 560px);
    padding: 46px 0 62px;
    grid-template-columns: 1fr;
    gap: 42px;
  }
  .hero h1 { font-size: clamp(64px, 21vw, 86px); }
  .slogan { margin-top: 24px; font-size: 29px; }
  .hero-note { margin-top: 38px; }
  .hero-photo { transform: none; padding: 8px 8px 0; }
  .hero-photo::before { left: -8px; bottom: 52px; width: 4px; height: 72px; }
  .hero-photo img { aspect-ratio: 1.08 / 1; object-position: 51% center; }
  .story-section {
    width: min(100% - 32px, 560px);
    padding: 82px 0 88px;
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .section-mark { flex-direction: row; align-items: center; gap: 12px; }
  .section-mark span { font-size: 25px; }
  .section-mark i { width: 50px; height: 1px; margin: 0; }
  .section-mark small { writing-mode: initial; }
  .story-heading h2, .section-intro h2, .principles-heading h2, .partnership-inner h2 { font-size: 39px; }
  .story-copy { padding-top: 4px; font-size: 16px; line-height: 1.9; }
  .process-section { padding: 82px 16px 88px; }
  .section-intro { grid-template-columns: 1fr; gap: 22px; }
  .section-intro > p:last-child { font-size: 14px; }
  .process-list { margin-top: 52px; grid-template-columns: 1fr; border-top: 0; }
  .process-list li { display: grid; grid-template-columns: 48px 1fr; gap: 14px; padding: 24px 0; border-top: 1px solid rgba(255,255,255,.23); }
  .process-list li:not(:last-child) { border-right: 0; margin-right: 0; }
  .process-list li::before { display: none; }
  .process-list h3 { margin: 0 0 8px; font-size: 21px; }
  .process-list p { font-size: 13px; }
  .principles-section { width: min(100% - 32px, 560px); padding: 86px 0 96px; }
  .principles-heading { grid-template-columns: 1fr; gap: 8px; }
  .principles-grid { margin-top: 48px; grid-template-columns: 1fr; gap: 12px; }
  .principles-grid article, .principles-grid article:nth-child(2) { min-height: 245px; transform: none; }
  .principles-grid h3 { margin-top: 34px; font-size: 23px; }
  .partnership-section { width: calc(100% - 32px); margin-bottom: 72px; padding: 42px 28px; grid-template-columns: 1fr; gap: 36px; }
  .partnership-inner blockquote { font-size: 18px; }
  .signature-card { min-height: 240px; }
  .site-footer { padding: 42px 20px 48px; grid-template-columns: 112px 1fr; gap: 20px; }
  .site-footer img { width: 110px; }
  .site-footer p { grid-column: 1 / -1; justify-self: start; text-align: left; }
}

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