* { box-sizing: border-box; }
:root {
  --ink: #171b18;
  --muted: #5f675f;
  --paper: #f3eee6;
  --paper-deep: #e6ddd1;
  --moss: #203d31;
  --leaf: #3f7d36;
  --sun: #f2b24c;
  --white: #fff;
  --shadow: 0 22px 55px rgba(23, 27, 24, .14);
  --serif: "Noto Serif SC", Georgia, serif;
}
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ── Header ── */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 40;
  color: var(--white);
  transition: background .25s ease, box-shadow .25s ease, backdrop-filter .25s ease;
}
.site-header.is-scrolled, .site-header.is-solid {
  background: rgba(32, 61, 49, .92);
  backdrop-filter: blur(18px);
  box-shadow: 0 14px 40px rgba(0,0,0,.12);
}
.nav {
  max-width: 1240px;
  margin: 0 auto;
  padding: 22px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: max-content;
  font-weight: 800;
  font-family: var(--serif);
}
.brand-logo {
  width: 48px;
  height: 48px;
  object-fit: contain;
  filter: brightness(0) invert(1);
}
.brand-mark {
  width: 54px;
  height: 54px;
  border: 1px solid rgba(255,255,255,.7);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 22px;
  font-weight: 900;
  background: rgba(255,255,255,.12);
}
.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 18px 24px;
  font-size: 15px;
}
.nav-links a {
  opacity: .9;
  border-bottom: 1px solid transparent;
  transition: opacity .2s ease, border-color .2s ease;
}
.nav-links a:hover, .nav-links a.active {
  opacity: 1;
  border-color: currentColor;
}
.join-link {
  padding: 16px 28px;
  background: var(--white);
  color: var(--ink);
  border: 0;
  font-weight: 800;
}
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255,255,255,.45);
  border-radius: 50%;
  color: var(--white);
  background: rgba(255,255,255,.1);
  font-size: 22px;
}

/* ── Hero ── */
.hero {
  min-height: 100vh;
  position: relative;
  overflow: hidden;
  color: var(--white);
  background-image: linear-gradient(90deg, rgba(16,27,21,.78), rgba(16,27,21,.35), rgba(16,27,21,.1)), var(--hero-image);
  background-size: cover;
  background-position: center;
}
.hero-inner {
  max-width: 1240px;
  min-height: 100vh;
  margin: 0 auto;
  padding: 160px 24px 76px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 320px);
  align-items: end;
  gap: 48px;
  position: relative;
  z-index: 2;
}
.hero-copy { max-width: 760px; }
.eyebrow {
  display: inline-flex;
  padding: 9px 15px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.35);
  background: rgba(255,255,255,.12);
  backdrop-filter: blur(12px);
  font-size: 14px;
  letter-spacing: .08em;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  margin: 20px 0 26px;
  font-family: var(--serif);
  font-size: clamp(52px, 7vw, 98px);
  line-height: .98;
  letter-spacing: 0;
}
.hero-copy p {
  max-width: 720px;
  color: rgba(255,255,255,.88);
  font-size: clamp(19px, 2vw, 26px);
  line-height: 1.8;
}
.hero-panel {
  justify-self: end;
  display: grid;
  gap: 14px;
}
.hero-button {
  min-width: 200px;
  padding: 18px 28px;
  display: inline-flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  font-weight: 900;
  font-size: 17px;
  transition: transform .2s ease, background .2s ease;
}
.hero-button--primary {
  background: var(--sun);
  color: var(--ink);
}
.hero-button--primary:hover { transform: translateY(-4px); background: #f5be6a; }
.hero-button--outline {
  background: rgba(255,255,255,.15);
  color: var(--white);
  border: 1px solid rgba(255,255,255,.5);
  backdrop-filter: blur(8px);
}
.hero-button--outline:hover { transform: translateY(-4px); background: rgba(255,255,255,.25); }
.hero-arrow { font-style: normal; font-size: 20px; }

/* ── Sections ── */
.section { padding: 112px 24px; }
.section.alt { background: var(--paper-deep); }
.section.dark { background: var(--moss); color: var(--white); }
.container { max-width: 1180px; margin: 0 auto; }
.section-head { max-width: 790px; margin-bottom: 52px; }
.kicker {
  margin-bottom: 16px;
  color: var(--leaf);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .28em;
  text-transform: uppercase;
}
.dark .kicker, .cta .kicker { color: rgba(255,255,255,.72); }
h2 {
  margin-bottom: 24px;
  color: var(--moss);
  font-family: var(--serif);
  font-size: clamp(34px, 4.8vw, 58px);
  line-height: 1.12;
  letter-spacing: 0;
}
.dark h2, .cta h2 { color: var(--white); }
h3 {
  margin-bottom: 12px;
  color: var(--moss);
  font-size: 22px;
  line-height: 1.3;
}
.dark h3 { color: var(--white); }
.lead, .body-copy {
  color: rgba(23,27,24,.72);
  font-size: 18px;
  line-height: 1.95;
}
.dark .lead, .dark .body-copy, .cta .lead { color: rgba(255,255,255,.78); }

/* ── Split layout ── */
.split {
  display: grid;
  grid-template-columns: minmax(0,1fr) minmax(0,1fr);
  gap: 64px;
  align-items: center;
}

/* ── Quote stack ── */
.quote-stack {
  display: grid;
  gap: 24px;
}
.quote-stack blockquote {
  margin: 0;
  padding: 28px 32px;
  border-left: 4px solid var(--sun);
  background: var(--white);
  border-radius: 0 18px 18px 0;
  box-shadow: 0 8px 28px rgba(23,27,24,.07);
  color: var(--moss);
  font-family: var(--serif);
  font-size: clamp(19px, 1.8vw, 26px);
  font-style: italic;
  line-height: 1.6;
  transition: transform .2s ease;
}
.quote-stack blockquote:hover { transform: translateX(6px); }

/* ── Stats list ── */
.stats-list { display: grid; gap: 28px; margin-top: 54px; }
.stats-list strong { color: var(--leaf); font-size: 26px; font-family: var(--serif); }

/* ── Cards ── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 22px;
}
.card-grid.five { grid-template-columns: repeat(5, minmax(0,1fr)); }
.card {
  min-height: 240px;
  padding: 28px;
  border-radius: 18px;
  background: var(--white);
  box-shadow: 0 12px 32px rgba(23,27,24,.07);
  transition: transform .25s ease, box-shadow .25s ease;
  display: flex;
  flex-direction: column;
}
.card:hover {
  transform: perspective(900px) rotateX(2deg) rotateY(-3deg) translateY(-6px);
  box-shadow: var(--shadow);
}
.card p, .text-list li { color: rgba(23,27,24,.7); line-height: 1.85; }
.card-icon {
  font-size: 28px;
  margin-bottom: 14px;
  display: block;
}
.card .meta {
  display: inline-flex;
  margin-bottom: 14px;
  color: var(--leaf);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .14em;
  text-transform: uppercase;
}

/* ── Photo card ── */
.photo-card {
  min-height: 370px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  border-radius: 24px;
  color: var(--white);
  background-image: linear-gradient(transparent, rgba(0,0,0,.62)), var(--image);
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow);
}
.photo-card div { padding: 30px; }
.photo-card h3 { color: var(--white); }

/* ── Metrics ── */
.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 1px;
  background: rgba(255,255,255,.18);
}
.metric { padding: 38px 30px; background: var(--moss); }
.metric strong {
  display: block;
  font-family: var(--serif);
  font-size: clamp(36px, 4.4vw, 60px);
  line-height: 1;
}
.metric span {
  display: block;
  margin-top: 14px;
  color: rgba(255,255,255,.72);
  font-size: 15px;
}

/* ── Image utilities ── */
.image-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.image-pair img, .feature-image {
  width: 100%;
  height: 440px;
  object-fit: cover;
  border-radius: 28px;
  box-shadow: var(--shadow);
}
.image-pair img:nth-child(2) { margin-top: 54px; }
.text-list { padding-left: 0; list-style: none; }
.text-list li {
  position: relative;
  margin-bottom: 15px;
  padding-left: 28px;
}
.text-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--sun);
}

/* ── CTA ── */
.cta {
  padding: 110px 24px;
  color: var(--white);
  text-align: center;
  background-image: linear-gradient(rgba(32,61,49,.87), rgba(32,61,49,.87)), var(--cta-image, url("https://images.unsplash.com/photo-1511632765486-a01980e01a18?w=2000&auto=format&fit=crop"));
  background-size: cover;
  background-position: center;
}
.cta .container { max-width: 850px; }
.button-row {
  margin-top: 34px;
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.button {
  min-height: 54px;
  padding: 0 32px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 16px;
  transition: transform .2s ease, background .2s ease;
}
.button:hover { transform: translateY(-3px); }
.button.primary { background: var(--sun); color: var(--ink); }
.button.secondary { border: 1px solid rgba(255,255,255,.45); color: var(--white); }
.button.dark-secondary { border: 1px solid rgba(32,61,49,.28); color: var(--moss); }

/* ── Footer ── */
.site-footer {
  padding: 52px 24px;
  color: rgba(255,255,255,.68);
  background: #111b16;
}
.footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 40px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}
.footer-mark {
  width: 48px;
  height: 48px;
  border: 1px solid rgba(255,255,255,.3);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 20px;
  font-weight: 900;
  font-family: var(--serif);
  flex-shrink: 0;
}
.footer-brand strong {
  display: block;
  color: var(--white);
  font-family: var(--serif);
  font-size: 16px;
}
.footer-brand p {
  margin: 4px 0 0;
  font-size: 13px;
  color: rgba(255,255,255,.5);
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  justify-content: center;
  font-size: 14px;
}
.footer-links a {
  color: rgba(255,255,255,.6);
  transition: color .2s ease;
}
.footer-links a:hover { color: var(--white); }
.footer-social {
  display: grid;
  gap: 6px;
  text-align: right;
  font-size: 13px;
  color: rgba(255,255,255,.5);
}

/* ── Page hero variants ── */
.page-hero { min-height: 68vh; }
.page-hero .hero-inner {
  min-height: 68vh;
  grid-template-columns: minmax(0, 850px);
  align-items: end;
}

/* ── Gallery ── */
.gallery { overflow: hidden; background: var(--paper-deep); padding: 58px 0; }
.gallery-strip {
  width: max-content;
  display: flex;
  gap: 20px;
  animation: drift 34s linear infinite;
}
.gallery-strip img {
  width: min(470px, 72vw);
  height: 310px;
  object-fit: cover;
  border-radius: 26px;
}
@keyframes drift {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ── Form ── */
.form-shell {
  display: grid;
  gap: 16px;
  padding: 32px;
  border-radius: 24px;
  background: var(--white);
  box-shadow: var(--shadow);
}
.form-field { display: grid; gap: 8px; }
.form-field label { font-weight: 800; color: var(--moss); }
.form-field input, .form-field select, .form-field textarea {
  width: 100%;
  border: 1px solid rgba(32,61,49,.18);
  border-radius: 14px;
  padding: 14px 16px;
  color: var(--ink);
  background: #fbf8f1;
  font: inherit;
}

/* ── Reveal animation ── */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .72s ease, transform .72s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ── Responsive ── */
@media (max-width: 1100px) {
  .card-grid.five { grid-template-columns: repeat(3, minmax(0,1fr)); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-social { text-align: left; }
}
@media (max-width: 920px) {
  .menu-toggle { display: grid; place-items: center; }
  .nav { align-items: flex-start; }
  .nav-links {
    position: absolute;
    top: 86px;
    left: 16px;
    right: 16px;
    display: none;
    padding: 22px;
    border-radius: 20px;
    background: rgba(32,61,49,.96);
    box-shadow: var(--shadow);
  }
  .nav-links.is-open { display: grid; justify-content: stretch; }
  .join-link { text-align: center; }
  .hero-inner, .split, .metric-grid, .card-grid, .card-grid.five { grid-template-columns: 1fr; }
  .hero-inner { align-items: center; }
  .hero-panel { justify-self: start; }
  .section { padding: 82px 20px; }
  .image-pair img, .feature-image { height: 320px; }
  .image-pair img:nth-child(2) { margin-top: 0; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-social { text-align: left; }
  .footer-links { justify-content: flex-start; }
}
@media (max-width: 560px) {
  .brand span:last-child { max-width: 160px; line-height: 1.25; }
  .hero-button { min-width: 180px; }
  .hero-inner { padding-left: 20px; padding-right: 20px; }
  .image-pair { grid-template-columns: 1fr; }
  .card-grid.five { grid-template-columns: 1fr; }
}