:root {
  color-scheme: light;
  --bg: #f7f6f2;
  --surface: #ffffff;
  --text: #1f2421;
  --muted: #68706a;
  --line: #dddcd5;
  --accent: #2f5d50;
  --accent-contrast: #ffffff;
  --radius: 12px;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
}

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

button,
input {
  font: inherit;
}

a {
  color: var(--accent);
}

[hidden] {
  display: none !important;
}

.container {
  width: min(100% - 40px, var(--max));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 100;
  padding: 9px 14px;
  border-radius: 8px;
  background: var(--text);
  color: #fff;
  text-decoration: none;
}

.skip-link:focus {
  top: 12px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(247, 246, 242, 0.94);
  backdrop-filter: blur(10px);
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 64px;
}

.brand {
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.site-nav {
  display: flex;
  gap: 20px;
}

.site-nav a {
  color: var(--muted);
  font-size: 0.95rem;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
}

.nav-toggle {
  display: none;
}

.search-strip {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.search-inner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 0;
}

.search-label {
  flex: 0 0 auto;
  color: var(--muted);
  font-size: 0.85rem;
  white-space: nowrap;
}

.search-input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
}

.search-input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.search-status {
  flex: 0 0 auto;
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.hero {
  padding: 64px 0 72px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 52px;
  align-items: center;
}

.hero-grid.no-media {
  grid-template-columns: minmax(0, 1fr);
}

.hero-copy {
  max-width: 560px;
}

.hero-subtitle {
  margin: -6px 0 20px;
  color: var(--muted);
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}

.hero-carousel {
  position: relative;
  height: clamp(380px, 46vw, 600px);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #0d1b2a;
  box-shadow: 0 18px 50px rgba(31, 36, 33, 0.12);
}

.hero-carousel[hidden] {
  display: none;
}

.hero-slides {
  position: relative;
  height: 100%;
}

.hero-slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px 18px 58px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.65s ease;
}

.hero-slide.is-active {
  opacity: 1;
  visibility: visible;
}

.hero-slide-bg {
  position: absolute;
  inset: -24px;
  width: calc(100% + 48px);
  height: calc(100% + 48px);
  object-fit: cover;
  filter: blur(28px) saturate(1.1);
  opacity: 0.45;
  transform: scale(1.06);
}

.hero-slide-img {
  position: relative;
  z-index: 1;
  width: auto;
  max-width: 100%;
  max-height: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 10px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
}

.hero-slide-caption {
  position: absolute;
  right: 18px;
  bottom: 48px;
  left: 18px;
  z-index: 2;
  color: #fff;
  font-size: 0.82rem;
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.7);
}

.hero-controls {
  position: absolute;
  right: 14px;
  bottom: 12px;
  left: 14px;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.hero-nav {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 50%;
  background: rgba(13, 27, 42, 0.55);
  color: #fff;
  font-size: 1.2rem;
  line-height: 1;
  cursor: pointer;
}

.hero-nav:hover {
  background: rgba(13, 27, 42, 0.8);
}

.hero-dots {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-dot {
  width: 8px;
  height: 8px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.45);
  cursor: pointer;
}

.hero-dot[aria-current="true"] {
  transform: scale(1.25);
  background: #fff;
}

.hero-dot:focus-visible,
.hero-nav:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 3px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 20px;
  font-size: clamp(2rem, 5vw, 3.6rem);
  font-weight: 650;
  letter-spacing: -0.04em;
  line-height: 1.12;
}

.hero-intro {
  max-width: 640px;
  margin: 0 0 28px;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-contrast);
  font-size: 0.95rem;
  text-decoration: none;
}

.button:hover {
  filter: brightness(1.08);
}

.button-secondary {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--accent);
}

.section {
  padding: 56px 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: 70px;
}

.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}

h2 {
  margin: 0;
  font-size: 1.6rem;
  letter-spacing: -0.02em;
}

.section-note {
  max-width: 360px;
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  text-align: right;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.photo-card {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.photo-button {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: none;
  color: inherit;
  text-align: left;
  cursor: zoom-in;
}

.photo-button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: -3px;
}

.photo-button img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  background: #101b28;
}

.photo-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  color: var(--muted);
  font-size: 0.85rem;
}

.photo-meta strong {
  color: var(--text);
  font-weight: 500;
}

.notice-list {
  display: grid;
  border-top: 1px solid var(--line);
}

.notice-item {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.notice-date {
  padding-top: 3px;
  color: var(--muted);
  font-size: 0.85rem;
}

.notice-item h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
}

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

.download-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}

.download-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.download-item h3 {
  margin: 0 0 4px;
  font-size: 1rem;
}

.download-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.download-meta {
  color: var(--muted);
  font-size: 0.8rem;
  white-space: nowrap;
}

.download-link {
  display: inline-block;
  margin-top: 10px;
  font-size: 0.9rem;
}

.link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.link-item {
  flex: 1 1 260px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: inherit;
  text-decoration: none;
}

.link-item:hover {
  border-color: var(--accent);
}

.link-item strong {
  display: block;
  margin-bottom: 4px;
}

.link-item span {
  color: var(--muted);
  font-size: 0.88rem;
}

.empty-state {
  padding: 20px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  color: var(--muted);
}

.site-footer {
  padding: 24px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.footer-inner p {
  margin: 0;
}

.lightbox {
  width: min(1100px, 100vw);
  max-width: 100vw;
  padding: 0;
  border: 0;
  background: transparent;
}

.lightbox::backdrop {
  background: rgba(15, 20, 17, 0.78);
}

.lightbox-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 24px;
}

.lightbox figure {
  max-width: 90vw;
  max-height: 88vh;
  margin: 0;
  text-align: center;
}

.lightbox img {
  width: auto;
  max-width: 100%;
  max-height: 80vh;
  height: auto;
  margin: 0 auto;
  border-radius: 8px;
  background: #fff;
}

.lightbox figcaption {
  margin-top: 10px;
  color: #fff;
  font-size: 0.9rem;
}

.lightbox-close,
.lightbox-nav {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  color: #1f2421;
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
}

.lightbox-close {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 1;
}

.lightbox-nav {
  flex: 0 0 auto;
}

.noscript-note {
  max-width: 1120px;
  margin: 0 auto;
  padding: 16px 20px;
  background: #fff4e0;
  color: #7a3e00;
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .hero-copy {
    max-width: 680px;
  }

  .hero-carousel {
    height: clamp(360px, 62vw, 520px);
  }
}

@media (max-width: 720px) {
  .container {
    width: min(100% - 28px, var(--max));
  }

  .nav-toggle {
    display: block;
    padding: 7px 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text);
  }

  .site-nav {
    position: absolute;
    top: 64px;
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    gap: 2px;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--surface);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
  }

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

  .site-nav a {
    padding: 10px 12px;
    border-radius: 8px;
  }

  .site-nav a:hover {
    background: var(--bg);
  }

  .search-inner {
    flex-wrap: wrap;
    gap: 8px 12px;
  }

  .search-input {
    flex: 1 1 100%;
  }

  .search-label,
  .search-status {
    flex: 0 0 100%;
  }

  .hero {
    padding: 48px 0 40px;
  }

  .section {
    padding: 40px 0;
  }

  .section-heading {
    display: block;
  }

  .section-note {
    margin-top: 6px;
    text-align: left;
  }

  .notice-item {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 18px 0;
  }

  .footer-inner {
    flex-direction: column;
    gap: 6px;
  }

  .lightbox-inner {
    padding: 12px 4px;
  }

  .lightbox-nav {
    width: 36px;
    height: 36px;
  }
}

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

  .hero-slide {
    transition: none;
  }
}