/* 团队二级页共享样式 —— 视觉语言与官网首页一致 */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: #F7FAFC;
  color: #1A202C;
  line-height: 1.8;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ─── 顶部导航条 ─── */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  background: rgba(7,14,23,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.topbar .back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.75);
  font-size: 14px;
  font-weight: 600;
  transition: color 0.3s;
}
.topbar .back:hover { color: #4FD1C5; }
.topbar .crumb { color: rgba(255,255,255,0.45); font-size: 13px; }

/* ─── Hero ─── */
.hero {
  position: relative;
  min-height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(140deg, #0B1623 0%, #132439 45%, #0F1F2F 75%, #0B1623 100%);
  overflow: hidden;
  padding: 110px 20px 60px;
  text-align: center;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 620px 420px at 18% 70%, rgba(0,168,150,0.14) 0%, transparent 70%),
    radial-gradient(ellipse 520px 320px at 82% 30%, rgba(79,209,197,0.10) 0%, transparent 70%);
  pointer-events: none;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
}
.hero-content { position: relative; z-index: 1; max-width: 860px; margin: 0 auto; }
.hero-avatar {
  width: 150px;
  aspect-ratio: 3 / 4;
  margin: 0 auto 22px;
  border-radius: 24px;
  overflow: hidden;
  border: 2px solid rgba(79,209,197,0.45);
  box-shadow: 0 0 0 6px rgba(0,168,150,0.12), 0 18px 60px rgba(0,0,0,0.5);
}
.hero-avatar img { width: 100%; height: 100%; object-fit: contain; }
.hero .badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  color: #4FD1C5;
  background: rgba(0,168,150,0.15);
  border: 1px solid rgba(0,168,150,0.35);
  border-radius: 999px;
  padding: 4px 16px;
  margin-bottom: 14px;
}
.hero h1 {
  font-size: 40px;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: 2px;
}
.hero .roles {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 14px;
}
.hero .roles span {
  font-size: 13px;
  color: #E6FFFA;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 999px;
  padding: 4px 14px;
}
.hero .school {
  color: rgba(255,255,255,0.55);
  font-size: 14px;
  margin-top: 14px;
}

/* ─── 内容容器 ─── */
.container { max-width: 920px; margin: 0 auto; padding: 56px 20px 40px; }
.section-title {
  font-size: 24px;
  font-weight: 700;
  color: #1A202C;
  margin-bottom: 18px;
}

/* ─── 详细介绍 ─── */
.bio-card {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  border-radius: 16px;
  padding: 32px 36px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.05);
  font-size: 15px;
  color: #4A5568;
  line-height: 2.1;
}
.bio-card strong { color: #008B7A; }

/* ─── 团队成员 ─── */
.members-note {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: #718096;
  background: #EDF2F7;
  border-radius: 12px;
  padding: 12px 18px;
  margin-bottom: 24px;
}
.member-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 20px;
}
.member-card {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0,0,0,0.05);
  transition: transform 0.35s cubic-bezier(0.4,0,0.2,1), box-shadow 0.35s;
}
.member-card:hover { transform: translateY(-5px); box-shadow: 0 12px 48px rgba(0,0,0,0.1); }
.member-photo { aspect-ratio: 3 / 4; overflow: hidden; background: #F7FAFC; }
.member-photo img { width: 100%; height: 100%; object-fit: contain; }
.member-info { padding: 16px 18px 20px; text-align: center; }
.member-name { font-size: 18px; font-weight: 700; color: #1A202C; }
.member-role { font-size: 12.5px; color: #008B7A; font-weight: 600; margin-top: 4px; }
.member-school { font-size: 12.5px; color: #718096; margin-top: 6px; }
.member-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; margin-top: 10px; }
.member-tags span {
  font-size: 11px;
  color: #276749;
  background: #E6FFFA;
  border-radius: 999px;
  padding: 2px 10px;
}

/* ─── 动效 ─── */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ─── 底部 ─── */
.footer {
  background: #070E17;
  color: rgba(255,255,255,0.35);
  text-align: center;
  padding: 36px 20px;
  font-size: 13px;
}
.footer a { color: rgba(255,255,255,0.55); }
.footer a:hover { color: #4FD1C5; }

@media (max-width: 768px) {
  .hero { min-height: 320px; padding-top: 96px; }
  .hero h1 { font-size: 30px; }
  .hero-avatar { width: 120px; border-radius: 18px; }
  .bio-card { padding: 24px 22px; }
  .topbar { padding: 12px 16px; }
}