/* ── 共享样式：DRG 风格布局 + 相遇暖色纸纹审美 ── */

:root {
  --paper: #f6f1e8;
  --paper-dark: #ede6d9;
  --ink: #24211e;
  --muted: #7d7469;
  --line: rgba(36, 33, 30, .12);
  --tile: rgba(255, 255, 255, .78);
  --accent: #1d8d86;
  --accent-2: #c64635;
  --pink: #d4618e;
  --pink-light: #f0b0c4;
  --pink-dark: #c04e7a;
  --green: #2e8b57;
  --red: #c64635;
  --font-serif: "Songti SC", "STSong", Georgia, serif;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --max-width: 1200px;
  --header-h: 64px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background:
    linear-gradient(90deg, rgba(36, 33, 30, .045) 1px, transparent 1px) 0 0 / 42px 42px,
    linear-gradient(rgba(36, 33, 30, .038) 1px, transparent 1px) 0 0 / 42px 42px,
    radial-gradient(circle at 10% 20%, rgba(29, 141, 134, .18), transparent 31%),
    radial-gradient(circle at 86% 6%, rgba(198, 70, 53, .15), transparent 27%),
    var(--paper);
  color: var(--ink);
  font-family: var(--font-serif);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

body::after {
  position: fixed;
  inset: 0;
  pointer-events: none;
  content: "";
  opacity: .15;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='.32'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
  z-index: -1;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--pink); }

/* ── Header / Navigation（DRG 风格） ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(246, 241, 232, .88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
}

.header-inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 900;
  letter-spacing: 2px;
  color: var(--ink);
  text-decoration: none;
  font-family: var(--font-sans);
}

.logo:hover { color: var(--pink-dark); }

.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--pink), var(--pink-dark));
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 18px;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-list a {
  display: block;
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--muted);
  border-radius: 8px;
  transition: all .25s ease;
  font-family: var(--font-sans);
}

.nav-list a:hover,
.nav-list a.active {
  color: var(--pink-dark);
  background: rgba(212, 97, 142, .08);
}

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: none;
  background: none;
  cursor: pointer;
  color: var(--ink);
  font-size: 22px;
  padding: 0;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
}

.nav-toggle:hover {
  background: rgba(0,0,0,.05);
}

/* ── Hero Section（DRG 风格） ── */
.hero {
  position: relative;
  padding: 80px 24px 60px;
  text-align: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(212, 97, 142, .10) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(29, 141, 134, .08) 0%, transparent 50%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 900;
  letter-spacing: 6px;
  margin-bottom: 16px;
  color: var(--ink);
}

.hero .subtitle {
  font-size: clamp(14px, 2vw, 20px);
  color: var(--muted);
  letter-spacing: 4px;
  margin-bottom: 32px;
}

.hero .tagline-large {
  font-size: clamp(16px, 1.5vw, 22px);
  color: var(--pink-dark);
  letter-spacing: 3px;
  font-weight: 600;
  line-height: 1.6;
  max-width: 700px;
  margin: 0 auto 40px;
  opacity: .85;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 32px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 3px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  transition: all .3s ease;
  font-family: var(--font-serif);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--pink), var(--pink-dark));
  color: #fff;
  box-shadow: 0 4px 20px rgba(212, 97, 142, .3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(212, 97, 142, .4);
  color: #fff;
}

.btn-outline {
  border: 1.5px solid var(--line);
  color: var(--muted);
  background: rgba(255,255,255,.5);
}

.btn-outline:hover {
  border-color: var(--pink);
  color: var(--pink-dark);
  background: rgba(212, 97, 142, .06);
}

/* ── Page Content ── */
.page-content {
  flex: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 40px 24px 60px;
  width: 100%;
}

.page-header {
  text-align: center;
  margin-bottom: 48px;
}

.page-header h2 {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 900;
  letter-spacing: 4px;
  color: var(--ink);
  margin-bottom: 8px;
}

.page-header .page-desc {
  font-size: 15px;
  color: var(--muted);
  letter-spacing: 2px;
}

/* ── Stats Grid ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  margin: 40px 0;
}

.stat-card {
  text-align: center;
  padding: 28px 16px;
  background: rgba(255,255,255,.55);
  border: 1px solid var(--line);
  border-radius: 16px;
  backdrop-filter: blur(8px);
  transition: transform .25s ease, box-shadow .25s ease;
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,.06);
}

.stat-number {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 900;
  color: var(--pink-dark);
  font-family: var(--font-sans);
  line-height: 1.2;
}

.stat-label {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 2px;
  margin-top: 6px;
}

/* ── Feature Grid ── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin: 40px 0;
}

.feature-card {
  padding: 32px 24px;
  background: rgba(255,255,255,.5);
  border: 1px solid var(--line);
  border-radius: 16px;
  text-align: center;
  transition: transform .25s ease, box-shadow .25s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,.06);
}

.feature-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--pink), var(--pink-dark));
  display: grid;
  place-items: center;
  font-size: 24px;
  color: #fff;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 1px;
  line-height: 1.6;
}

/* ── Section Title ── */
.section-title {
  text-align: center;
  margin: 48px 0 32px;
}

.section-title h2 {
  font-size: clamp(22px, 2.5vw, 32px);
  font-weight: 900;
  letter-spacing: 4px;
}

.section-title p {
  font-size: 14px;
  color: var(--muted);
  letter-spacing: 2px;
  margin-top: 8px;
}

/* ── Footer（DRG 风格三栏） ── */
.site-footer {
  background: rgba(36, 33, 30, .04);
  border-top: 1px solid var(--line);
  padding: 48px 24px 24px;
  margin-top: auto;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--ink);
  margin-bottom: 12px;
  font-family: var(--font-sans);
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 6px;
}

.footer-col a,
.footer-col span {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 1px;
  transition: color .2s ease;
}

.footer-col a:hover {
  color: var(--pink);
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 32px auto 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 1px;
}

/* ── Section Divider ── */
.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line), transparent);
  margin: 24px 0;
}

/* ── About Page ── */
.about-content {
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.8;
}

.about-content p {
  font-size: 15px;
  color: var(--ink);
  letter-spacing: 1px;
  margin-bottom: 20px;
}

.about-content h3 {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 2px;
  margin: 32px 0 16px;
  color: var(--pink-dark);
}

/* ── News / Timeline ── */
.news-list {
  display: grid;
  gap: 16px;
}

.news-item {
  display: flex;
  gap: 16px;
  padding: 20px 24px;
  background: rgba(255,255,255,.5);
  border: 1px solid var(--line);
  border-radius: 12px;
  transition: transform .25s ease;
}

.news-item:hover {
  transform: translateX(4px);
}

.news-date {
  flex-shrink: 0;
  width: 60px;
  text-align: center;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 1px;
}

.news-date .day {
  display: block;
  font-size: 24px;
  font-weight: 900;
  color: var(--pink-dark);
}

.news-body h3 {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.news-body p {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 1px;
  line-height: 1.6;
}

/* ── Mobile Responsive ── */
@media (max-width: 768px) {
  .nav-list {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(246, 241, 232, .97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
    padding: 8px 16px;
    gap: 2px;
  }

  .nav-list.open {
    display: flex;
  }

  .nav-list a {
    padding: 12px 16px;
    width: 100%;
  }

  .nav-toggle {
    display: flex;
  }

  .hero { padding: 48px 16px 40px; }
  .page-content { padding: 24px 16px 40px; }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .news-item {
    flex-direction: column;
    gap: 8px;
  }

  .news-date {
    width: auto;
    display: flex;
    align-items: center;
    gap: 6px;
  }

  .news-date .day {
    display: inline;
    font-size: 16px;
  }
}

@media (max-width: 480px) {
  .footer-inner {
    grid-template-columns: 1fr;
  }

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