:root {
  --ink: #323232;
  --muted: #77716e;
  --page: #fdf6f2;
  --white: #fffdfb;
  --line: rgba(50, 50, 50, 0.1);
  --spring: #b9ebdd;
  --summer: #fadaef;
  --autumn: #ffecab;
  --winter: #d9dbf8;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--page);
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 16px;
  line-height: 1.75;
}

a { color: inherit; text-decoration: none; }
.section-wrap { width: min(1120px, calc(100% - 48px)); margin: 0 auto; }
.site-header {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 2;
}
.brand { display: inline-flex; gap: 10px; align-items: center; font-weight: 600; letter-spacing: .12em; }
.brand img { width: 32px; height: 32px; border-radius: 10px; }
nav { display: flex; gap: 28px; color: var(--muted); font-size: 14px; }
nav a:hover, .quiet-link:hover { color: #106956; }

.hero {
  min-height: 650px;
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(420px, 1.1fr);
  align-items: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 16px -160px 0;
  background: url('/assets/auth_bg.png') center / cover no-repeat;
  border-radius: 48px;
  opacity: .76;
  z-index: -1;
}
.hero-copy { padding: 80px 0 80px 9%; max-width: 570px; }
.eyebrow {
  margin: 0 0 18px;
  color: #106956;
  font-family: Georgia, 'Songti SC', serif;
  font-size: 15px;
  letter-spacing: .06em;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  margin-bottom: 24px;
  font-size: clamp(40px, 5vw, 68px);
  line-height: 1.18;
  letter-spacing: -.045em;
  font-weight: 600;
}
h1 em { color: #106956; font-style: normal; }
.hero-description { max-width: 470px; color: var(--muted); font-size: 17px; }
.quiet-link { display: inline-flex; gap: 18px; margin-top: 22px; padding-bottom: 4px; color: #106956; border-bottom: 1px solid #106956; font-weight: 600; }
.hero-art { min-height: 580px; position: relative; display: grid; place-items: end center; }
.hero-art img { width: min(680px, 115%); max-height: 610px; object-fit: contain; object-position: bottom center; filter: drop-shadow(0 22px 30px rgba(16, 105, 86, .12)); }
.orb { position: absolute; border-radius: 50%; filter: blur(1px); }
.orb-pink { width: 190px; height: 190px; top: 100px; right: 16%; background: rgba(250, 218, 239, .8); }
.orb-green { width: 260px; height: 260px; bottom: 80px; left: 3%; background: rgba(185, 235, 221, .66); }

.about { padding: 132px 8% 140px; display: grid; grid-template-columns: 1fr 1fr; gap: 11%; }
.section-heading h2, .closing h2 { margin-bottom: 0; font-size: clamp(34px, 4.5vw, 54px); line-height: 1.35; letter-spacing: -.04em; font-weight: 600; }
.about-copy { align-self: end; max-width: 445px; color: var(--muted); font-size: 17px; }
.about-copy p:last-child { margin-bottom: 0; color: var(--ink); }

.seasons { padding: 0 0 140px; }
.seasons-heading { text-align: center; }
.seasons-heading > p:last-child { margin: 14px auto 48px; color: var(--muted); }
.season-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.season-card { min-height: 260px; padding: 24px; display: flex; flex-direction: column; border-radius: 26px; }
.season-number { font-family: Georgia, 'Songti SC', serif; font-size: 14px; opacity: .7; }
.season-mark { align-self: flex-end; margin-top: -14px; font-family: Georgia, 'Songti SC', serif; font-size: 50px; line-height: 1; opacity: .65; }
.season-card h3 { margin: 36px 0 4px; font-size: 27px; letter-spacing: .05em; }
.season-card p { margin: 0; font-size: 15px; color: rgba(50, 50, 50, .7); }
.spring { background: #d8f8ef; }.summer { background: #fce6f4; }.autumn { background: #fff3c6; }.winter { background: #eef0ff; }

.closing { padding: 118px 24px 122px; text-align: center; border-top: 1px solid var(--line); }
.closing-mark { margin-bottom: 20px; color: #f1b204; font-size: 29px; }
.closing h2 { margin-bottom: 24px; }
.closing > p:last-child { margin: 0; color: var(--muted); }
.site-footer { padding: 22px 0 32px; display: flex; justify-content: space-between; gap: 24px; color: #968e89; border-top: 1px solid var(--line); font-size: 13px; }

@media (max-width: 760px) {
  .section-wrap, .site-header { width: min(100% - 32px, 560px); }
  .site-header { padding: 18px 0; }
  nav { gap: 14px; font-size: 13px; }
  .hero { min-height: 0; display: block; }
  .hero::before { inset: 8px -80px 0; border-radius: 32px; }
  .hero-copy { padding: 72px 20px 0; }
  h1 { font-size: clamp(39px, 12vw, 58px); }
  .hero-description { font-size: 16px; }
  .hero-art { min-height: 360px; margin-top: 12px; }
  .hero-art img { width: 120%; max-height: 390px; }
  .orb-pink { width: 120px; height: 120px; top: 45px; right: 7%; }
  .orb-green { width: 150px; height: 150px; bottom: 36px; left: 4%; }
  .about { padding: 92px 8px 100px; display: block; }
  .about-copy { margin-top: 35px; font-size: 16px; }
  .seasons { padding: 0 8px 100px; }
  .season-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .season-card { min-height: 215px; padding: 18px; border-radius: 20px; }
  .season-mark { font-size: 38px; }
  .season-card h3 { margin-top: 28px; font-size: 23px; }
  .season-card p { font-size: 14px; line-height: 1.55; }
  .closing { padding: 90px 8px; }
  .site-footer { display: block; text-align: center; line-height: 1.6; }
  .site-footer span { display: block; }
  .site-footer span + span { margin-top: 8px; }
}