/* ============================================================
   财经B6-105寝室官网 · 全局样式
   毛玻璃 · 灵动动画 · 简洁高级
   原色体系：#1D3557 深蓝 / #457B9D 钢蓝 / #f5f9fd 浅底
   ============================================================ */

/* ---------- CSS 变量 ---------- */
:root {
  --primary: #1D3557;
  --primary-light: #2a4a73;
  --secondary: #457B9D;
  --accent: #A8DADC;
  --accent-warm: #ca5a5a;
  --bg: #f5f9fd;
  --bg-soft: #eef4fa;
  --text: #1D3557;
  --text-soft: #4a6a8a;
  --text-muted: #7a9ab8;
  --glass-bg: rgba(255, 255, 255, 0.55);
  --glass-bg-strong: rgba(255, 255, 255, 0.72);
  --glass-border: rgba(255, 255, 255, 0.6);
  --glass-shadow: 0 8px 32px rgba(29, 53, 87, 0.10);
  --glass-shadow-hover: 0 20px 60px rgba(29, 53, 87, 0.18);
  --gradient-main: linear-gradient(135deg, #1D3557 0%, #457B9D 100%);
  --gradient-aurora-1: rgba(69, 123, 157, 0.35);
  --gradient-aurora-2: rgba(168, 218, 220, 0.30);
  --gradient-aurora-3: rgba(29, 53, 87, 0.20);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --font-serif: "KaiTi", "KaiTi SC", "STKaiti", "楷体", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

[data-theme="dark"] {
  --primary: #a8c8e8;
  --primary-light: #8ab0d8;
  --secondary: #6b9fc4;
  --accent: #4a7a8c;
  --bg: #0a1628;
  --bg-soft: #0f1f35;
  --text: #d4e4f4;
  --text-soft: #9ab4d0;
  --text-muted: #6a8aa8;
  --glass-bg: rgba(20, 40, 70, 0.55);
  --glass-bg-strong: rgba(20, 40, 70, 0.75);
  --glass-border: rgba(100, 150, 200, 0.25);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --glass-shadow-hover: 0 20px 60px rgba(0, 0, 0, 0.55);
  --gradient-aurora-1: rgba(69, 123, 157, 0.25);
  --gradient-aurora-2: rgba(168, 218, 220, 0.15);
  --gradient-aurora-3: rgba(100, 150, 220, 0.20);
}

/* ---------- 全局重置 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
  transition: background-color 0.5s ease, color 0.5s ease;
  position: relative;
}

/* ---------- 极光背景 ---------- */
.aurora-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.aurora-bg::before,
.aurora-bg::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.7;
}

.aurora-bg::before {
  width: 60vw;
  height: 60vw;
  top: -20%;
  left: -10%;
  background: var(--gradient-aurora-1);
  animation: auroraFloat1 18s ease-in-out infinite;
}

.aurora-bg::after {
  width: 50vw;
  height: 50vw;
  bottom: -15%;
  right: -10%;
  background: var(--gradient-aurora-2);
  animation: auroraFloat2 22s ease-in-out infinite;
}

.aurora-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.5;
}

.aurora-orb:nth-child(1) {
  width: 35vw;
  height: 35vw;
  top: 30%;
  left: 40%;
  background: var(--gradient-aurora-3);
  animation: auroraFloat3 25s ease-in-out infinite;
}

@keyframes auroraFloat1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(10vw, 5vh) scale(1.1); }
  66% { transform: translate(-5vw, 10vh) scale(0.95); }
}

@keyframes auroraFloat2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-8vw, -8vh) scale(1.05); }
  66% { transform: translate(5vw, -5vh) scale(1.1); }
}

@keyframes auroraFloat3 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-10vw, 8vh) scale(1.15); }
}

/* ---------- 页面加载动画 ---------- */
.page-loader {
  position: fixed;
  inset: 0;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-ring {
  width: 56px;
  height: 56px;
  border: 3px solid var(--accent);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: loaderSpin 0.9s linear infinite;
}

.loader-text {
  margin-top: 20px;
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--text-soft);
  letter-spacing: 4px;
  animation: loaderPulse 1.5s ease-in-out infinite;
}

@keyframes loaderSpin {
  to { transform: rotate(360deg); }
}

@keyframes loaderPulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* ---------- 自定义滚动条 ---------- */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--secondary);
  border-radius: 4px;
  opacity: 0.6;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* ---------- 毛玻璃工具类 ---------- */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

.glass-strong {
  background: var(--glass-bg-strong);
  backdrop-filter: blur(30px) saturate(200%);
  -webkit-backdrop-filter: blur(30px) saturate(200%);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

/* ---------- 顶部导航栏 ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: var(--glass-bg-strong);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 4px 20px rgba(29, 53, 87, 0.08);
}

.nav-brand {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: bold;
  color: var(--primary);
  text-decoration: none;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-brand .brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gradient-main);
  box-shadow: 0 0 12px var(--secondary);
  animation: brandPulse 2s ease-in-out infinite;
}

@keyframes brandPulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.7; }
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.theme-toggle {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: var(--transition-fast);
  color: var(--text);
}

.theme-toggle:hover {
  transform: rotate(20deg) scale(1.1);
  box-shadow: 0 4px 16px rgba(29, 53, 87, 0.15);
}

/* ---------- Hero 区域 ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 100px 24px 60px;
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  border-radius: 100px;
  font-size: 14px;
  color: var(--secondary);
  margin-bottom: 28px;
  animation: fadeInUp 0.8s ease both;
}

.hero-badge .badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--secondary);
  animation: badgeBlink 1.5s ease-in-out infinite;
}

@keyframes badgeBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(36px, 7vw, 80px);
  font-weight: bold;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 20px;
  animation: fadeInUp 0.8s ease 0.15s both;
  letter-spacing: 2px;
}

.hero-title .gradient-text {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
}

.hero-subtitle {
  font-size: clamp(15px, 2vw, 20px);
  color: var(--text-soft);
  max-width: 600px;
  margin-bottom: 40px;
  animation: fadeInUp 0.8s ease 0.3s both;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  animation: fadeInUp 0.8s ease 0.45s both;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 100px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-main);
  color: #fff;
  box-shadow: 0 6px 24px rgba(29, 53, 87, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(29, 53, 87, 0.4);
}

.btn-primary::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
  transition: left 0.6s ease;
}

.btn-primary:hover::after {
  left: 100%;
}

.btn-ghost {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--primary);
  border: 1px solid var(--glass-border);
}

.btn-ghost:hover {
  transform: translateY(-3px);
  background: var(--glass-bg-strong);
  box-shadow: 0 8px 24px rgba(29, 53, 87, 0.12);
}

.hero-scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 12px;
  letter-spacing: 2px;
  animation: fadeInUp 0.8s ease 0.6s both;
}

.scroll-mouse {
  width: 24px;
  height: 38px;
  border: 2px solid var(--text-muted);
  border-radius: 12px;
  position: relative;
}

.scroll-mouse::after {
  content: "";
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  border-radius: 2px;
  background: var(--text-muted);
  animation: scrollWheel 1.8s ease-in-out infinite;
}

@keyframes scrollWheel {
  0% { opacity: 1; transform: translateX(-50%) translateY(0); }
  100% { opacity: 0; transform: translateX(-50%) translateY(12px); }
}

/* ---------- 通用 Section ---------- */
.section {
  padding: 80px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--secondary);
  margin-bottom: 12px;
  font-weight: 600;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: bold;
  color: var(--primary);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-soft);
  max-width: 560px;
  margin: 0 auto;
}

/* ---------- 统计数字 ---------- */
.stats-row {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.stat-item {
  text-align: center;
  padding: 24px 36px;
  border-radius: var(--radius-md);
  min-width: 140px;
  transition: var(--transition);
}

.stat-item:hover {
  transform: translateY(-4px);
}

.stat-number {
  font-family: var(--font-serif);
  font-size: 42px;
  font-weight: bold;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}

.stat-label {
  font-size: 14px;
  color: var(--text-soft);
  margin-top: 8px;
  letter-spacing: 1px;
}

/* ---------- 成员卡片网格 ---------- */
.member-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 28px;
  max-width: 1100px;
  margin: 0 auto;
}

.member-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none;
  color: var(--text);
  cursor: pointer;
  transition: var(--transition);
  transform-style: preserve-3d;
  perspective: 1000px;
  aspect-ratio: 3 / 4;
}

.member-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

.member-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-lg);
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  display: block;
}

.member-card:hover img {
  transform: scale(1.08);
}

.member-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(29, 53, 87, 0.85) 0%,
    rgba(29, 53, 87, 0.3) 40%,
    transparent 70%
  );
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px 20px;
  transition: var(--transition);
}

.member-card-name {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: bold;
  color: #fff;
  margin-bottom: 4px;
  letter-spacing: 1px;
}

.member-card-nick {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 1px;
}

.member-card-arrow {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  opacity: 0;
  transform: translateX(-8px);
  transition: var(--transition-fast);
}

.member-card:hover .member-card-arrow {
  opacity: 1;
  transform: translateX(0);
}

.member-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--glass-shadow-hover);
}

/* 番外成员卡片特殊样式 */
.member-card.extra .member-card-overlay {
  background: linear-gradient(
    to top,
    rgb(167, 79, 29) 0%,
    rgba(172, 141, 141, 0.3) 40%,
    transparent 70%
  );
}

.extra-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 4px 12px;
  border-radius: 100px;
  background: rgba(202, 90, 90, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  z-index: 2;
}

/* ---------- 搜索框 ---------- */
.search-box {
  max-width: 480px;
  margin: 0 auto 48px;
  position: relative;
}

.search-box input {
  width: 100%;
  padding: 16px 24px 16px 52px;
  border-radius: 100px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  font-size: 15px;
  color: var(--text);
  outline: none;
  transition: var(--transition-fast);
  font-family: var(--font-sans);
}

.search-box input::placeholder {
  color: var(--text-muted);
}

.search-box input:focus {
  border-color: var(--secondary);
  box-shadow: 0 0 0 4px rgba(69, 123, 157, 0.12);
  background: var(--glass-bg-strong);
}

.search-box .search-icon {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 18px;
  pointer-events: none;
}

.search-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 16px;
  display: none;
}

.search-empty.show {
  display: block;
}

/* ---------- 分割线 ---------- */
.divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin: 0 auto 48px;
  max-width: 600px;
}

.divider-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--secondary), transparent);
}

.divider-icon {
  color: var(--secondary);
  font-size: 18px;
  opacity: 0.7;
}

/* ---------- 页脚 ---------- */
.footer {
  padding: 60px 24px 40px;
  text-align: center;
  position: relative;
}

.footer-content {
  max-width: 600px;
  margin: 0 auto;
}

.footer-logo {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: bold;
  color: var(--primary);
  margin-bottom: 12px;
}

.footer-slogan {
  font-size: 15px;
  color: var(--text-soft);
  margin-bottom: 24px;
  font-family: var(--font-serif);
  letter-spacing: 1px;
}

.footer-divider {
  width: 60px;
  height: 2px;
  background: var(--gradient-main);
  margin: 0 auto 24px;
  border-radius: 1px;
}

.footer-copy {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 2;
}

.footer-copy a {
  color: var(--secondary);
  text-decoration: none;
  transition: var(--transition-fast);
}

.footer-copy a:hover {
  color: var(--primary);
  text-decoration: underline;
}

/* ---------- 返回顶部 ---------- */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg-strong);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  color: var(--primary);
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
  box-shadow: var(--glass-shadow);
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: var(--glass-shadow-hover);
  color: var(--secondary);
}

/* ---------- 滚动揭示动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ============================================================
   个人页面样式
   ============================================================ */
.profile-page {
  padding-top: 80px;
  min-height: 100vh;
}

.profile-header {
  max-width: 900px;
  margin: 0 auto 48px;
  padding: 0 24px;
  text-align: center;
}

.profile-avatar-wrap {
  position: relative;
  width: 160px;
  height: 160px;
  margin: 0 auto 24px;
}

.profile-avatar-ring {
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  background: var(--gradient-main);
  opacity: 0.6;
  filter: blur(8px);
  animation: avatarGlow 3s ease-in-out infinite;
}

@keyframes avatarGlow {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.05); }
}

.profile-avatar {
  position: relative;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--glass-border);
  box-shadow: var(--glass-shadow-hover);
}

.profile-name {
  font-family: var(--font-serif);
  font-size: clamp(28px, 5vw, 42px);
  font-weight: bold;
  color: var(--primary);
  margin-bottom: 8px;
  letter-spacing: 2px;
}

.profile-nick {
  font-size: 16px;
  color: var(--secondary);
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.profile-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: 100px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
  color: var(--primary);
}

.profile-back:hover {
  transform: translateX(-4px);
}

/* 个人信息卡片 */
.info-card {
  max-width: 700px;
  margin: 0 auto 48px;
  padding: 36px;
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.info-card:hover {
  box-shadow: var(--glass-shadow-hover);
  transform: translateY(-2px);
}

.info-card-title {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: bold;
  color: var(--primary);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.info-card-title::before {
  content: "";
  width: 4px;
  height: 22px;
  background: var(--gradient-main);
  border-radius: 2px;
}

.info-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  transition: var(--transition-fast);
}

.info-item:hover {
  transform: translateX(4px);
  background: var(--glass-bg-strong);
}

.info-item-label {
  font-size: 13px;
  color: var(--text-muted);
  min-width: 60px;
  flex-shrink: 0;
  padding-top: 2px;
}

.info-item-value {
  font-size: 15px;
  color: var(--text);
  font-weight: 500;
  word-break: break-all;
}

.info-quote {
  margin-top: 24px;
  padding: 20px 24px;
  border-left: 3px solid var(--secondary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--glass-bg);
  font-family: var(--font-serif);
  font-size: 17px;
  color: var(--text-soft);
  font-style: italic;
  line-height: 1.8;
}

/* 照片画廊 */
.gallery-section {
  max-width: 1100px;
  margin: 0 auto 60px;
  padding: 0 24px;
}

.gallery-title {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: bold;
  color: var(--primary);
  margin-bottom: 28px;
  text-align: center;
  letter-spacing: 1px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4 / 3;
  transition: var(--transition);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-md);
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  display: block;
}

.gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--glass-shadow-hover);
}

.gallery-item:hover img {
  transform: scale(1.08);
}

.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(29, 53, 87, 0.6), transparent 50%);
  opacity: 0;
  transition: var(--transition-fast);
  display: flex;
  align-items: flex-end;
  padding: 16px;
  border-radius: var(--radius-md);
}

.gallery-item:hover .gallery-item-overlay {
  opacity: 1;
}

.gallery-item-zoom {
  color: #fff;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* 大图灯箱 */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 20, 40, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.lightbox-content {
  position: relative;
  z-index: 1;
  max-width: 90vw;
  max-height: 85vh;
  transform: scale(0.9);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.lightbox.active .lightbox-content {
  transform: scale(1);
}

.lightbox-content img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--radius-md);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
  display: block;
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 24px;
  z-index: 2;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.lightbox-close:hover {
  transform: rotate(90deg);
  background: rgba(255, 255, 255, 0.2);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: #fff;
  font-size: 22px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-50%) scale(1.1);
}

.lightbox-prev { left: 24px; }
.lightbox-next { right: 24px; }

.lightbox-counter {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  padding: 8px 20px;
  border-radius: 100px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: rgba(255, 255, 255, 0.8);
  font-size: 13px;
  letter-spacing: 1px;
}

/* ============================================================
   响应式设计
   ============================================================ */

/* 平板 */
@media (max-width: 1024px) {
  .section { padding: 60px 20px; }
  .member-grid { gap: 20px; }
  .gallery-grid { gap: 16px; }
  .stats-row { gap: 24px; }
  .stat-item { padding: 20px 28px; min-width: 120px; }
  .stat-number { font-size: 36px; }
}

/* 手机大屏 */
@media (max-width: 768px) {
  .navbar { padding: 0 16px; height: 56px; }
  .nav-brand { font-size: 17px; }
  .hero { padding: 80px 20px 50px; min-height: 90vh; }
  .hero-actions { flex-direction: column; align-items: center; }
  .btn { padding: 12px 28px; font-size: 15px; width: 100%; max-width: 280px; justify-content: center; }
  .section { padding: 48px 16px; }
  .section-header { margin-bottom: 36px; }
  .member-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  .member-card-name { font-size: 17px; }
  .member-card-nick { font-size: 11px; }
  .member-card-overlay { padding: 16px 14px; }
  .stats-row { gap: 16px; }
  .stat-item { padding: 16px 20px; min-width: 100px; }
  .stat-number { font-size: 28px; }
  .stat-label { font-size: 12px; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .info-card { padding: 24px 20px; margin: 0 16px 36px; }
  .info-list { grid-template-columns: 1fr; gap: 12px; }
  .profile-avatar-wrap, .profile-avatar { width: 120px; height: 120px; }
  .back-to-top { bottom: 20px; right: 20px; width: 42px; height: 42px; }
  .lightbox-nav { width: 40px; height: 40px; font-size: 18px; }
  .lightbox-prev { left: 12px; }
  .lightbox-next { right: 12px; }
  .search-box { margin: 0 16px 36px; }
}

/* 小屏手机 */
@media (max-width: 480px) {
  .member-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .gallery-grid { grid-template-columns: 1fr; }
  .stats-row { gap: 12px; }
  .stat-item { padding: 14px 16px; min-width: 85px; }
  .stat-number { font-size: 24px; }
  .hero-title { letter-spacing: 1px; }
}

/* ---------- 折叠屏适配 ---------- */
/* 单折竖屏（书本模式展开）*/
@media (spanning: single-fold-vertical) {
  .hero {
    padding-left: calc(env(fold-left) + 24px);
    padding-right: calc(env(fold-right) + 24px);
  }
  .member-grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    max-width: none;
    padding: 0 calc(env(fold-left) + 24px);
  }
  .section {
    padding-left: calc(env(fold-left) + 24px);
    padding-right: calc(env(fold-right) + 24px);
  }
  .profile-header, .info-card, .gallery-section {
    padding-left: calc(env(fold-left) + 24px);
    padding-right: calc(env(fold-right) + 24px);
  }
}

/* 单折横屏（帐篷模式）*/
@media (spanning: single-fold-horizontal) {
  .hero {
    padding-top: calc(env(fold-top) + 100px);
    min-height: 100svh;
  }
}

/* 双折/多折 */
@media (spanning: multi-fold-vertical) {
  .member-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* 大屏 / 超宽屏 */
@media (min-width: 1600px) {
  .section { max-width: 1400px; }
  .member-grid { max-width: 1300px; gap: 32px; }
  .hero-title { font-size: 88px; }
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* 选中文字颜色 */
::selection {
  background: var(--secondary);
  color: #fff;
}