:root {
  --bg: #111216;
  --surface: rgba(22, 24, 30, 0.82);
  --surface-strong: rgba(17, 18, 22, 0.94);
  --wine: #6a1d33;
  --wine-soft: #87415b;
  --gold: #d8b06a;
  --gold-soft: #f0d9b0;
  --mint: #174446;
  --mist: #f5eee2;
  --text: #f8f3eb;
  --muted: rgba(248, 243, 235, 0.72);
  --line: rgba(216, 176, 106, 0.22);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.32);
  --container: min(1160px, calc(100vw - 40px));
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top right, rgba(106, 29, 51, 0.28), transparent 35%),
    radial-gradient(circle at 18% 18%, rgba(23, 68, 70, 0.32), transparent 28%),
    var(--bg);
  color: var(--text);
  line-height: 1.65;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(24px);
  background: rgba(17, 18, 22, 0.66);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.site-header__inner,
.section__inner,
.site-footer__inner {
  width: var(--container);
  margin: 0 auto;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 80px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand__mark {
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
}

.brand__wordmark {
  width: clamp(132px, 18vw, 176px);
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.site-nav a {
  color: var(--muted);
  font-size: 15px;
  transition: color 160ms ease;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--mist);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: transparent;
  color: var(--mist);
}

.hero {
  padding: 42px 0 28px;
}

.hero__grid {
  width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 30px;
}

.hero__copy,
.hero__visual {
  min-width: 0;
}

.hero__copy {
  position: relative;
  padding: 42px;
  border-radius: 28px;
  background:
    linear-gradient(135deg, rgba(23, 68, 70, 0.28), transparent 46%),
    linear-gradient(180deg, rgba(106, 29, 51, 0.34), rgba(17, 18, 22, 0.94));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero__copy::before {
  content: "";
  position: absolute;
  inset: 18px;
  border: 1px solid rgba(245, 238, 226, 0.08);
  border-radius: 20px;
  pointer-events: none;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(216, 176, 106, 0.28);
  color: var(--gold-soft);
  font-size: 13px;
  letter-spacing: 0;
  background: rgba(17, 18, 22, 0.34);
}

.hero h1 {
  margin: 20px 0 16px;
  font-family: "Songti SC", "STSong", "Songti SC", serif;
  font-size: clamp(44px, 7vw, 88px);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero__lead {
  max-width: 52ch;
  font-size: 18px;
  color: var(--muted);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button--primary {
  background: linear-gradient(135deg, var(--gold), #c18f4a);
  color: #17181c;
  font-weight: 600;
}

.button--secondary {
  border-color: rgba(245, 238, 226, 0.16);
  color: var(--mist);
  background: rgba(245, 238, 226, 0.04);
}

.hero__meta {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 30px;
}

.hero__meta-card {
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.hero__meta-card span {
  display: block;
  font-size: 12px;
  color: var(--muted);
}

.hero__meta-card strong {
  display: block;
  margin-top: 6px;
  font-size: 16px;
  line-height: 1.3;
}

.hero__visual {
  position: relative;
  border-radius: 28px;
  overflow: hidden;
  min-height: 680px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.hero__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(17, 18, 22, 0.14), rgba(17, 18, 22, 0.26) 48%, rgba(17, 18, 22, 0.82)),
    linear-gradient(45deg, rgba(23, 68, 70, 0.14), rgba(106, 29, 51, 0.18));
}

.hero__panel {
  position: absolute;
  right: 22px;
  bottom: 22px;
  left: 22px;
  z-index: 1;
  padding: 20px 22px;
  border-radius: 22px;
  background: rgba(17, 18, 22, 0.7);
  border: 1px solid rgba(216, 176, 106, 0.16);
}

.hero__panel-label {
  display: block;
  font-size: 12px;
  color: var(--gold-soft);
  text-transform: uppercase;
}

.hero__panel p {
  margin: 8px 0 0;
  color: var(--mist);
}

.section {
  padding: 34px 0;
}

.section__head {
  margin-bottom: 24px;
}

.section__eyebrow {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--gold);
  font-size: 13px;
}

.section h2 {
  margin: 0;
  font-family: "Songti SC", "STSong", serif;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.1;
}

.section__intro {
  max-width: 62ch;
  margin-top: 12px;
  color: var(--muted);
}

.story {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
}

.story__panel,
.story__fact,
.card,
.gallery__item,
.faq__item,
.notice,
.timeline__item {
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  background: rgba(255, 255, 255, 0.03);
}

.story__panel,
.story__fact {
  padding: 28px;
}

.story__panel p,
.story__fact p {
  color: var(--muted);
  margin: 0;
}

.story__facts {
  display: grid;
  gap: 16px;
}

.story__fact strong {
  display: block;
  margin-bottom: 8px;
  font-size: 22px;
  color: var(--mist);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.timeline__item {
  padding: 22px;
}

.timeline__date {
  color: var(--gold-soft);
  font-size: 13px;
}

.timeline__item h3 {
  margin: 10px 0 8px;
  font-size: 20px;
}

.timeline__item p {
  margin: 0;
  color: var(--muted);
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.card {
  overflow: hidden;
}

.card img {
  width: 100%;
  aspect-ratio: 4 / 4.2;
  object-fit: cover;
}

.card__body {
  padding: 20px;
}

.card__role {
  color: var(--gold-soft);
  font-size: 13px;
}

.card h3 {
  margin: 8px 0 10px;
  font-size: 24px;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.highlights {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.highlight {
  padding: 24px;
}

.highlight__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 999px;
  background: rgba(216, 176, 106, 0.16);
  color: var(--gold);
  font-size: 15px;
}

.highlight h3 {
  margin: 18px 0 10px;
  font-size: 24px;
}

.highlight p {
  margin: 0;
  color: var(--muted);
}

.gallery {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 18px;
}

.gallery__stack {
  display: grid;
  gap: 18px;
}

.gallery__item {
  overflow: hidden;
}

.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery__item--hero {
  min-height: 640px;
}

.gallery__item--wide img {
  aspect-ratio: 16 / 9;
}

.gallery__caption {
  padding: 18px 20px;
  color: var(--muted);
}

.faq {
  display: grid;
  gap: 16px;
}

.faq__item {
  padding: 22px 24px;
}

.faq__item h3 {
  margin: 0 0 8px;
  font-size: 20px;
}

.faq__item p {
  margin: 0;
  color: var(--muted);
}

.notice {
  padding: 24px;
  background:
    linear-gradient(135deg, rgba(23, 68, 70, 0.25), rgba(17, 18, 22, 0.96)),
    rgba(255, 255, 255, 0.04);
}

.notice h3 {
  margin: 0 0 10px;
  font-size: 22px;
}

.notice p,
.notice li {
  color: var(--muted);
}

.notice ul {
  margin: 0;
  padding-left: 20px;
}

.site-footer {
  padding: 26px 0 50px;
}

.site-footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  color: rgba(245, 238, 226, 0.64);
  font-size: 14px;
}

@media (max-width: 1100px) {
  .hero__grid,
  .story,
  .gallery {
    grid-template-columns: 1fr;
  }

  .cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .highlights,
  .timeline {
    grid-template-columns: 1fr;
  }

  .hero__meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero__visual {
    min-height: 560px;
  }
}

@media (max-width: 760px) {
  .site-header__inner {
    min-height: 72px;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    right: 20px;
    left: 20px;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding: 18px;
    border-radius: 18px;
    background: rgba(17, 18, 22, 0.94);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: flex;
  }

  .hero {
    padding-top: 24px;
  }

  .hero__copy,
  .story__panel,
  .story__fact,
  .timeline__item,
  .highlight,
  .faq__item,
  .notice {
    padding: 22px;
  }

  .hero__copy {
    padding-top: 30px;
  }

  .hero__meta {
    grid-template-columns: 1fr;
  }

  .hero__visual {
    min-height: 460px;
  }

  .cards {
    grid-template-columns: 1fr;
  }

  .gallery__item--hero {
    min-height: auto;
  }

  .gallery__item--wide img {
    aspect-ratio: 4 / 3;
  }

  .site-footer__inner {
    flex-direction: column;
  }
}