/* by yuyu */

/* ============================================
   旋转轮介绍人员（来自 React Bits OptionWheel JS+CSS 变体）
   开启后隐藏成员卡片网格，姓名沿曲线排列的滚轮；
   旋转文字水平居中于页面，中间选中项更亮、越远离越模糊淡出；
   中心层：左侧头像 + 右侧相关链接（纯文字），随选中切换内容但本身不旋转；
   文字与链接颜色随主题自适应。
   ============================================ */
.ow-shell {
  display: none;
  position: relative;
  width: min(580px, 94vw);
  margin: 4px auto 8px;
  align-items: center;
  justify-content: flex-start;
  flex-direction: column;
}

html.ow-enabled .ow-shell {
  display: flex;
}

html.ow-enabled .team-grid {
  display: none;
}

/* ---- 旋轮（对应 .option-wheel / .option-wheel__item） ---- */
.ow-wheel {
  --ow-text-color: var(--text-muted);      /* 主题自适应：非选中文字颜色 */
  --ow-active-color: var(--text-primary);  /* 主题自适应：选中文字颜色 */
  --ow-font-size: 1.62rem;
  --ow-lane: 42%;                          /* 横屏：旋转文字整体靠左 */

  position: relative;
  width: 100%;
  height: 300px;
  overflow: hidden;
  cursor: grab;
  user-select: none;
  touch-action: none;
  outline: none;
  z-index: 2;
}

.ow-wheel.dragging {
  cursor: grabbing;
}

/* 每个名字水平居中于页面中间，再沿曲线由 rAF 循环设置位移/透明/模糊 */
.ow-wheel .ow-item {
  position: absolute;
  top: 50%;
  left: var(--ow-lane);
  white-space: nowrap;
  font-size: var(--ow-font-size);
  line-height: 1;
  font-weight: 200;
  z-index: 1;               /* 旋转文字在中心头像上方 */
  transform-origin: left center;
  cursor: pointer;
  will-change: transform, opacity, filter;
  /* --ow-p 归 0 -> 1 时选项渐近轮盘中间，颜色从灰混向白 */
  color: color-mix(in srgb, var(--ow-active-color) calc(var(--ow-p, 0) * 100%), var(--ow-text-color));
}

.ow-wheel .ow-item.selected {
  font-weight: 500;
}

/* 中心层：铺满整个轮盘，左侧头像 + 右侧相关链接，自身不旋转。
   旋转文字水平居中于页面，头像在其左边、链接在其右边。 */
.ow-center {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.ow-center .ow-cavatar {
  position: absolute;
  left: 5%;
  top: 50%;
  transform: translateY(-50%);
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  flex: 0 0 auto;
  border: 2px solid var(--glass-border);
  box-shadow: 0 8px 24px var(--glass-shadow);
  pointer-events: none;
}

.ow-center .ow-links {
  position: absolute;
  left: calc(55% + 16px);   /* 位于旋转文字右侧，再整体偏右 16px */
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: row;      /* 横屏：相关链接排成一行，不换行 */
  align-items: flex-start;  /* 居左 */
  gap: 10px;
  white-space: nowrap;
  pointer-events: auto;
}

.ow-center .ow-links a {
  font-size: 13px;
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: 1px;
  color: var(--ow-text-color);          /* 颜色与旋转文字一致 */
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.2s ease, transform 0.2s ease;
}

.ow-center .ow-links a:hover {
  color: var(--ow-active-color);
  transform: translateX(-2px);
}

@media (max-width: 600px) {
  .ow-shell {
    width: min(460px, 96vw);
  }
  .ow-wheel {
    --ow-font-size: 1.42rem;
    --ow-lane: 50%;           /* 竖屏：文字居中 */
    height: 280px;
  }
  .ow-center .ow-cavatar {
    left: 5%;
    width: 74px;
    height: 74px;
    margin-left: -6px;        /* 竖屏：头像略微往左移 */
  }
  .ow-center .ow-links a {
    font-size: 13px;
    letter-spacing: 0.5px;
  }
  .ow-center .ow-links {
    left: auto;
    right: 6%;
    flex-direction: column;   /* 竖屏：链接竖排 */
    align-items: flex-end;
    gap: 6px;
    max-width: 34%;
  }
}

/* ============================================
   主题 CSS 变量系统（与 tutorial.css 一致）
   ============================================ */

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: rgba(255, 255, 255, 0.05);
  --bg-card-hover: rgba(255, 255, 255, 0.1);
  --bg-nav: rgba(10, 10, 15, 0.85);
  --text-primary: #f0f0f5;
  --text-secondary: #a0a0b0;
  --text-muted: #6a6a7a;
  --accent: #00d4ff;
  --accent-glow: rgba(0, 212, 255, 0.3);
  --accent-gradient: linear-gradient(135deg, #00d4ff, #7b2ff7);
  --border-color: rgba(255, 255, 255, 0.08);
  --shadow-color: rgba(0, 0, 0, 0.5);
  --glass-bg: rgba(255, 255, 255, 0.04);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: rgba(0, 0, 0, 0.3);
  --loading-bg: #0a0a0f;
  --scrollbar-track: #12121a;
  --scrollbar-thumb: #2a2a3a;
  --nav-shadow: rgba(0, 0, 0, 0.5);
}

[data-theme="light"] {
  --bg-primary: #f5f5f7;
  --bg-secondary: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.7);
  --bg-card-hover: rgba(255, 255, 255, 0.9);
  --bg-nav: rgba(255, 255, 255, 0.88);
  --text-primary: #1a1a2e;
  --text-secondary: #4a4a5a;
  --text-muted: #8a8a9a;
  --accent: #007aff;
  --accent-glow: rgba(0, 122, 255, 0.2);
  --accent-gradient: linear-gradient(135deg, #007aff, #5856d6);
  --border-color: rgba(0, 0, 0, 0.06);
  --shadow-color: rgba(0, 0, 0, 0.08);
  --glass-bg: rgba(255, 255, 255, 0.6);
  --glass-border: rgba(0, 0, 0, 0.08);
  --glass-shadow: rgba(0, 0, 0, 0.06);
  --loading-bg: #f5f5f7;
  --scrollbar-track: #e8e8ed;
  --scrollbar-thumb: #c0c0c8;
  --nav-shadow: rgba(0, 0, 0, 0.06);
}

[data-theme="orange"] {
  --bg-primary: #ff6900;
  --bg-secondary: #ff8533;
  --bg-card: rgba(255, 255, 255, 0.15);
  --bg-card-hover: rgba(255, 255, 255, 0.25);
  --bg-nav: rgba(255, 105, 0, 0.92);
  --text-primary: #ffffff;
  --text-secondary: #ffe0cc;
  --text-muted: #ffd4b8;
  --accent: #ffffff;
  --accent-glow: rgba(255, 255, 255, 0.35);
  --accent-gradient: linear-gradient(135deg, #ffffff, #ffe0cc);
  --border-color: rgba(255, 255, 255, 0.25);
  --shadow-color: rgba(0, 0, 0, 0.2);
  --glass-bg: rgba(255, 255, 255, 0.15);
  --glass-border: rgba(255, 255, 255, 0.25);
  --glass-shadow: rgba(0, 0, 0, 0.2);
  --loading-bg: #ff6900;
  --scrollbar-track: #e85e00;
  --scrollbar-thumb: #ff8533;
  --nav-shadow: rgba(0, 0, 0, 0.15);
}

/* ============================================
   基础重置
   ============================================ */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC',
    'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial,
    sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background-color 0.4s ease, color 0.4s ease;
}

/* 粒子风车背景画布 */
.pinwheel-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* 粒子开关按钮 */
.particle-toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: transparent;
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.3s ease;
}

.particle-toggle-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

.particle-toggle-btn.inactive {
  opacity: 0.4;
}

/* 自定义滚动条 */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}

::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 3px;
}

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

/* ============================================
   Loading 动画
   ============================================ */

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--loading-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.loading-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent);
  animation: spin 0.8s linear infinite;
  margin-bottom: 20px;
}

.loading-text {
  color: var(--text-secondary);
  font-size: 14px;
  letter-spacing: 2px;
  animation: pulse 1.5s ease-in-out infinite;
}

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

@keyframes pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

/* ============================================
   导航栏
   ============================================ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 1000;
  transition: background 0.4s ease;
}

.nav-brand {
  position: relative;
  z-index: 1;
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: 0.5px;
  transition: color 0.3s ease;
}

.nav-brand:hover {
  color: var(--accent);
}

/* by yuyu */
/* span 版品牌文字（非首页）不跳转，无 hover 变色效果 */
span.nav-brand {
  cursor: default;
  transition: none;
}

span.nav-brand:hover {
  color: var(--text-primary);
}

.nav-right {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-home-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--text-primary);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.3s ease;
  cursor: pointer;
}

.nav-home-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

/* 橙色主题下返回首页按钮颜色调整 - 与语言按钮一致 */
html[data-theme="orange"] .nav-home-btn,
[data-theme="orange"] .nav-home-btn {
  background: transparent !important;
  border-color: var(--glass-border) !important;
  color: var(--text-primary) !important;
}

html[data-theme="orange"] .nav-home-btn:hover,
[data-theme="orange"] .nav-home-btn:hover {
  background: rgba(255, 255, 255, 0.1) !important;
  border-color: rgba(255, 255, 255, 0.25) !important;
  color: #ffffff !important;
}

/* 橙色主题下底部返回首页按钮改为渐变黄色 */
html[data-theme="orange"] .footer-home-btn,
[data-theme="orange"] .footer-home-btn {
  background: linear-gradient(135deg, #FFD700, #FFA500) !important;
  color: #ffffff !important;
}

html[data-theme="orange"] .footer-home-btn:hover,
[data-theme="orange"] .footer-home-btn:hover {
  background: linear-gradient(135deg, #FFE45C, #FFB733) !important;
}

.nav-home-btn svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ============================================
   语言选择器
   ============================================ */

.lang-selector {
  position: relative;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: transparent;
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.lang-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

.lang-arrow {
  transition: transform 0.3s ease;
}

.lang-selector.open .lang-arrow {
  transform: rotate(180deg);
}

.lang-card {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 180px;
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 6px;
  display: none;
  flex-direction: column;
  gap: 2px;
  z-index: 100;
  box-shadow: 0 8px 32px var(--shadow-color);
}

.lang-selector.open .lang-card {
  display: flex;
}

.lang-option {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.2s ease;
  text-align: left;
}

.lang-option:hover {
  background: rgba(255, 255, 255, 0.1);
}

.lang-option.active {
  background: var(--accent-glow);
  color: var(--accent);
}

.lang-region {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* ============================================
   主题切换器
   ============================================ */

.theme-switcher {
  display: flex;
  align-items: center;
  gap: 6px;
}

.theme-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
}

.theme-dot:hover {
  transform: scale(1.15);
}

.theme-dot[data-theme="dark"] {
  background: linear-gradient(135deg, #0a0a0f, #1a1a2e);
}

.theme-dot[data-theme="light"] {
  background: #ffffff;
}

.theme-dot[data-theme="orange"] {
  background: linear-gradient(135deg, #ff6900, #ff9500);
}

html[data-theme="dark"] .theme-dot[data-theme="dark"].active {
  box-shadow: 0 0 12px 2px rgba(255, 105, 0, 0.7);
}

html[data-theme="light"] .theme-dot[data-theme="light"].active {
  box-shadow: 0 0 12px 2px rgba(0, 0, 0, 0.5);
}

html[data-theme="orange"] .theme-dot[data-theme="orange"].active {
  box-shadow: 0 0 12px 2px rgba(255, 255, 255, 0.7);
}

/* ============================================
   页面标题区域
   ============================================ */

.hero-section {
  padding: 120px 24px 60px;
  text-align: center;
  position: relative;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 60px;
  left: 50%;
  transform: translateX(-50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  opacity: 0.5;
  animation: hero-glow 4s ease-in-out infinite;
}

@keyframes hero-glow {

/* by yuyu */
  0%, 100% { opacity: 0.35; transform: translateX(-50%) scale(1); }
  50% { opacity: 0.65; transform: translateX(-50%) scale(1.1); }
}

.hero-title {
  font-size: 48px;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
  position: relative;
  letter-spacing: 2px;
}

.hero-subtitle {
  font-size: 16px;
  color: var(--text-muted);
  letter-spacing: 6px;
  text-transform: uppercase;
  font-weight: 300;
  position: relative;
}

.hero-divider {
  width: 60px;
  height: 3px;
  background: var(--accent-gradient);
  border-radius: 2px;
  margin: 24px auto 0;
  position: relative;
}

/* ============================================
   团队成员卡片网格
   ============================================ */

.team-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 80px;
  position: relative;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

/* ============================================
   团队卡片 - 玻璃拟态长方形
   ============================================ */

.team-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 24px 28px;
  box-shadow: 0 8px 32px var(--glass-shadow);
  transition: opacity 0.6s ease, transform 0.6s ease, background 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
  position: relative;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  gap: 16px;
  text-align: left;
  opacity: 1;
  transform: translateY(0);
}

.team-card:hover {
  box-shadow: 0 8px 32px var(--glass-shadow), 0 0 20px var(--accent-glow), 0 0 40px rgba(0,0,0,0.1);
  border-color: var(--accent-glow);
  transform: translateY(-4px);
}

/* 滚动前初始状态 */
.team-card.animate-on-scroll {
  opacity: 0;
  transform: translateY(40px) scale(0.96);
}

.team-card.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* 卡片内容层级高于光效 */
.team-card > * {
  position: relative;
  z-index: 2;
}

/* 外边缘光效层 */
.team-card .card-glow {
  position: absolute;
  inset: -3px;
  border-radius: 19px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 0;
  -webkit-mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  mask-composite: exclude;
  padding: 3px;
}

/* 头像图片 */
.team-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 4px 16px var(--accent-glow);
  flex-shrink: 0;
  transition: transform 0.3s ease;
  border: 2px solid var(--glass-border);
}

.team-card:hover .team-avatar {
  transform: scale(1.08);
}

/* 成员名称 */
.team-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  text-align: left;
  word-break: break-word;
  line-height: 1.5;
  transition: color 0.3s ease;
  flex: 1;
}

.team-card:hover .team-name {
  color: var(--accent);
}

/* 卡片信息区（名称 + 链接） */
.team-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex: 1;
  min-width: 0;
  position: relative;
}

/* 默认状态：名字垂直居中，链接隐藏 */
.team-info .team-links {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  margin-top: 0;
  transition: max-height 0.4s ease, opacity 0.3s ease, margin-top 0.4s ease;
}

.team-info .team-name {
  transition: color 0.3s ease, transform 0.4s ease;
}

/* 悬停状态：名字上移，链接显示 */
.team-card:hover .team-info .team-links {
  max-height: 120px;
  opacity: 1;
  margin-top: 10px;
}

.team-card:hover .team-info .team-name {
  transform: translateY(-2px);
}

/* 成员链接按钮 */
.team-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.team-link-btn {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.78rem;
  font-weight: 500;
  white-space: nowrap;
  transition: all 0.3s ease;
}

.team-link-btn:hover {
  background: var(--accent-glow);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

/* ============================================
   底部返回按钮
   ============================================ */

.footer-section {
  text-align: center;
  padding: 40px 24px 80px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.footer-section.visible {
  opacity: 1;
  transform: translateY(0);
}

.footer-home-btn {
  --follow-x: 0px;
  --follow-y: 0px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: var(--accent-gradient);
  color: #ffffff;
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transform: translate(var(--follow-x), var(--follow-y));
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 4px 16px var(--accent-glow);
  letter-spacing: 0.5px;
}

.footer-home-btn:hover {
  transform: translate(var(--follow-x), var(--follow-y)) translateY(-2px);
  box-shadow: 0 8px 24px var(--accent-glow);
}

.footer-home-btn svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* 版权页脚 */
.team-footer {
  position: relative;
  width: 100%;
  padding: 20px;
  text-align: center;
  z-index: 10;
  border-top: 1px solid var(--glass-border);
}

.team-footer p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  opacity: 0.5;
  letter-spacing: 1px;
}

/* ============================================
   响应式布局
   ============================================ */

@media (max-width: 900px) {
  .hero-title {
    font-size: 36px;
  }

  .hero-subtitle {
    font-size: 14px;
    letter-spacing: 4px;
  }
}

/* 移动端菜单按钮和弹出面板 */
.nav-menu-toggle {
  display: none;
}

.nav-mobile-panel {
  display: none;
}

@media (max-width: 600px) {
  .navbar {
    padding: 0 16px;
  }

  .nav-brand {
    font-size: 15px;
    white-space: nowrap;
  }

  .nav-right > .lang-selector,
  .nav-right > .theme-switcher,
  .nav-right > .particle-toggle-btn {
    display: none;
  }

  .nav-menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    background: transparent;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
  }

  .nav-menu-toggle:hover,
  .nav-menu-toggle.active {
    background: var(--bg-card-hover);
  }

  .nav-mobile-panel {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 16px;
    min-width: 200px;
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 12px;
    z-index: 100;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 8px 32px var(--shadow-color);
    flex-direction: column;
    gap: 12px;
  }

  .nav-mobile-panel.open {
    display: flex;
  }

  .mobile-panel-row {
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .mobile-panel-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    white-space: nowrap;
    min-width: 44px;
  }

  .mobile-panel-row .lang-btn {
    padding: 4px 8px;
    font-size: 0.75rem;
  }

  .mobile-panel-row .theme-switcher {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 3px 6px;
  }

  .mobile-panel-row .theme-dot {
    width: 18px;
    height: 18px;
  }

  .mobile-panel-row .mobile-func-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: transparent;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
  }

  .mobile-panel-row .mobile-func-btn:hover {
    background: var(--bg-card-hover);
  }

  .nav-home-btn span {
    display: none;
  }

  .nav-home-btn {
    padding: 8px 10px;
  }

  .hero-section {
    padding: 100px 16px 40px;
  }

  .hero-title {
    font-size: 28px;
  }

  .hero-subtitle {
    font-size: 12px;
    letter-spacing: 3px;
  }

  .team-section {
    padding: 20px 16px 60px;
  }

  .team-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .team-card {
    padding: 20px 20px;
  }

  .team-avatar {
    width: 44px;
    height: 44px;
  }

  .team-name {
    font-size: 14px;
  }

  .footer-section {
    padding: 30px 16px 60px;
  }

  .footer-home-btn {
    padding: 12px 24px;
    font-size: 14px;
  }
}

/* by yuyu */