```css
/* ============================================================
   樱花影视 - 清新日系影视风向标
   风格：清新日系 + 治愈系 + 毛玻璃 + 圆角卡片 + 渐变
   响应式 + 暗色模式 + 滚动动画 + hover动画
   ============================================================ */

/* ---------- CSS 变量与主题 ---------- */
:root {
  /* 主色系 - 樱花粉紫渐变 */
  --primary: #7C5CFC;
  --primary-light: #9B7BFF;
  --primary-dark: #6B4CFF;
  --accent: #FF9A9E;
  --accent-2: #FAD0C4;
  --sakura: #FFB7C5;
  --sakura-light: #FFF0F5;

  /* 日系清新背景 */
  --bg: #F8F4FF;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-glass: rgba(255, 255, 255, 0.6);

  /* 文字 */
  --text-primary: #1A1A2E;
  --text-secondary: #2D2D44;
  --text-muted: #6E6E8A;
  --text-light: #FFFFFF;

  /* 边框和阴影 */
  --border-light: rgba(124, 92, 252, 0.15);
  --shadow-sm: 0 4px 15px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 8px 25px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 12px 35px rgba(0, 0, 0, 0.18);

  /* 圆角 */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 50px;

  /* 渐变 */
  --gradient-primary: linear-gradient(135deg, #7C5CFC 0%, #9B7BFF 100%);
  --gradient-sakura: linear-gradient(135deg, #FF9A9E 0%, #FAD0C4 100%);
  --gradient-header: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-soft: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);

  /* 字体 */
  --font-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* ---------- 暗色模式 ---------- */
[data-theme="dark"] {
  --bg: #0f0f1a;
  --bg-card: rgba(30, 30, 50, 0.85);
  --bg-glass: rgba(30, 30, 50, 0.6);
  --text-primary: #e0e0e0;
  --text-secondary: #b0b0c0;
  --text-muted: #8888a0;
  --border-light: rgba(155, 123, 255, 0.2);
  --shadow-sm: 0 4px 15px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 25px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 12px 35px rgba(0, 0, 0, 0.6);
}

/* ---------- 基础重置 ---------- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  font-family: var(--font-base);
  background-color: var(--bg);
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(255, 183, 197, 0.15) 0%, transparent 30%),
    radial-gradient(circle at 90% 70%, rgba(124, 92, 252, 0.12) 0%, transparent 30%),
    radial-gradient(circle at 50% 50%, rgba(250, 208, 196, 0.08) 0%, transparent 40%);
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
  min-height: 100vh;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease, text-decoration 0.2s ease, opacity 0.2s;
}

a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- 滚动条美化 ---------- */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: rgba(124, 92, 252, 0.05);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  border-radius: 10px;
}

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

/* ---------- 滚动动画 ---------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

/* 滚动动画触发 */
section, aside, footer {
  animation: fadeInUp 0.8s ease both;
}

section:nth-child(1) { animation-delay: 0.1s; }
section:nth-child(2) { animation-delay: 0.2s; }
section:nth-child(3) { animation-delay: 0.3s; }
section:nth-child(4) { animation-delay: 0.4s; }
section:nth-child(5) { animation-delay: 0.5s; }
section:nth-child(6) { animation-delay: 0.6s; }
section:nth-child(7) { animation-delay: 0.7s; }

/* ---------- 头部 Header ---------- */
header {
  background: var(--gradient-header);
  background-size: 200% 200%;
  animation: gradientShift 8s ease infinite;
  padding: 20px 0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

@keyframes gradientShift {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 15px;
}

.logo h1 {
  color: var(--text-light);
  font-size: 32px;
  font-weight: 700;
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
  letter-spacing: 2px;
  background: linear-gradient(135deg, #fff, #f0e6ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: transform 0.3s ease;
}

.logo h1:hover {
  transform: scale(1.05);
}

nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

nav ul li a {
  color: var(--text-light);
  font-size: 15px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  transition: all 0.3s ease;
}

nav ul li a:hover {
  background: rgba(255, 255, 255, 0.25);
  color: var(--text-light);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

/* ---------- 主体 Main ---------- */
main {
  padding: 50px 0;
  min-height: 60vh;
}

section {
  margin-bottom: 60px;
}

/* ---------- 标题 ---------- */
h2 {
  font-size: 32px;
  color: var(--text-primary);
  margin-bottom: 30px;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--primary);
  display: inline-block;
  position: relative;
  letter-spacing: 1px;
}

h2::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 50%;
  height: 3px;
  background: var(--gradient-sakura);
  border-radius: 3px;
}

h3 {
  font-size: 22px;
  color: var(--text-primary);
  margin: 20px 0 15px;
  font-weight: 600;
}

/* ---------- 卡片网格 ---------- */
.grid-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 25px;
}

/* ---------- 漫画卡片 ---------- */
.comic-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  border: 1px solid var(--border-light);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: relative;
}

.comic-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-sakura);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.comic-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.comic-card:hover::before {
  opacity: 1;
}

.comic-card img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  transition: transform 0.5s ease, filter 0.3s ease;
  background: linear-gradient(135deg, #f0e6ff, #fff0f5);
}

.comic-card:hover img {
  transform: scale(1.05);
  filter: brightness(1.05);
}

.comic-info {
  padding: 18px;
  background: linear-gradient(to bottom, transparent, var(--bg-card));
}

.comic-info h3 {
  font-size: 18px;
  margin: 0 0 10px;
  color: var(--text-primary);
  font-weight: 600;
  transition: color 0.3s ease;
}

.comic-card:hover .comic-info h3 {
  color: var(--primary);
}

.comic-info p {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 4px 0;
  line-height: 1.5;
}

/* ---------- 标签 ---------- */
.tag {
  display: inline-block;
  background: linear-gradient(135deg, rgba(124, 92, 252, 0.1), rgba(255, 154, 158, 0.1));
  color: var(--primary);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  margin: 5px 5px 0 0;
  border: 1px solid var(--border-light);
  transition: all 0.3s ease;
  backdrop-filter: blur(5px);
}

.tag:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(124, 92, 252, 0.3);
}

/* ---------- 详情区块 ---------- */
.detail-section {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  transition: all 0.3s ease;
}

.detail-section:hover {
  box-shadow: var(--shadow-lg);
}

.detail-section h3 {
  font-size: 20px;
  color: var(--primary);
  margin: 25px 0 15px;
  padding-left: 15px;
  border-left: 4px solid var(--primary);
}

.detail-section p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 15px;
}

/* ---------- 角色卡片 ---------- */
.characters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 30px;
}

.character-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 30px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: all 0.4s ease;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.character-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(124, 92, 252, 0.05), rgba(255, 154, 158, 0.05));
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.character-card:hover::before {
  opacity: 1;
}

.character-card img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 20px;
  border: 4px solid var(--sakura-light);
  box-shadow: 0 8px 25px rgba(255, 183, 197, 0.4);
  transition: all 0.4s ease;
}

.character-card:hover img {
  transform: scale(1.08);
  border-color: var(--accent);
}

.character-card h3 {
  font-size: 20px;
  margin: 10px 0;
  color: var(--text-primary);
}

.character-card .role {
  color: var(--primary);
  font-weight: 600;
  margin: 5px 0;
}

.character-card .ability {
  color: var(--accent);
  font-style: italic;
  margin: 5px 0;
}

.character-card p:last-child {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
  margin-top: 10px;
}

/* ---------- 平台特性 ---------- */
.platform-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 25px;
  margin-top: 30px;
}

.feature-item {
  background: var(--bg-card);
  padding: 25px;
  border-radius: var(--radius-md);
  border-left: 4px solid var(--primary);
  box-shadow: var(--shadow-sm);
  transition: all 0.4s ease;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-light);
}

.feature-item:hover {
  transform: translateX(8px);
  box-shadow: var(--shadow-md);
  border-left-color: var(--accent);
}

.feature-item h3 {
  margin-top: 0;
  font-size: 18px;
  color: var(--primary);
}

.feature-item p {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ---------- 下载区块 ---------- */
.download-section {
  text-align: center;
  background: var(--gradient-soft);
  padding: 50px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
  position: relative;
  overflow: hidden;
}

.download-section::before {
  content: '🌸';
  position: absolute;
  top: 20px;
  right: 30px;
  font-size: 60px;
  opacity: 0.2;
  animation: float 4s ease-in-out infinite;
}

.download-section::after {
  content: '🌸';
  position: absolute;
  bottom: 20px;
  left: 30px;
  font-size: 40px;
  opacity: 0.15;
  animation: float 5s ease-in-out infinite reverse;
}

.download-section h2 {
  border-bottom: none;
  display: block;
  margin-bottom: 15px;
}

.download-section p {
  color: var(--text-secondary);
  font-size: 16px;
  margin: 10px 0;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block;
  background: var(--gradient-primary);
  color: var(--text-light);
  padding: 14px 35px;
  border-radius: var(--radius-full);
  font-size: 16px;
  font-weight: 600;
  margin: 10px;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(124, 92, 252, 0.3);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.5s ease;
}

.btn:hover {
  background: var(--gradient-header);
  color: var(--text-light);
  text-decoration: none;
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.btn:hover::before {
  left: 100%;
}

.btn:active {
  transform: translateY(-1px) scale(0.98);
}

/* ---------- 评论卡片 ---------- */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 25px;
}

.review-card {
  background: var(--bg-card);
  padding: 25px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.review-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-light);
}

.review-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
  color: var(--text-muted);
  font-size: 14px;
}

.review-user {
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
}

.review-user::before {
  content: '👤';
  margin-right: 8px;
  font-size: 16px;
}

.review-content {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- 侧边栏 ---------- */
aside {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 30px;
  margin-top: 50px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
}

aside h2 {
  font-size: 24px;
  margin-bottom: 20px;
}

.sidebar-list {
  list-style: none;
  margin-bottom: 30px;
}

.sidebar-list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-secondary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.3s ease;
  cursor: pointer;
}

.sidebar-list li:hover {
  padding-left: 10px;
  color: var(--primary);
  background: linear-gradient(135deg, rgba(124, 92, 252, 0.05), transparent);
}

.sidebar-list li span:first-child {
  font-weight: 500;
}

.sidebar-list li span:last-child {
  color: var(--primary);
  font-weight: 600;
}

/* ---------- 统计卡片 ---------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.stat-item {
  background: linear-gradient(135deg, rgba(124, 92, 252, 0.08), rgba(255, 154, 158, 0.08));
  padding: 20px;
  border-radius: var(--radius-md);
  text-align: center;
  border: 1px solid var(--border-light);
  transition: all 0.3s ease;
}

.stat-item:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-sm);
}

.stat-number {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-item div:last-child {
  color: var(--text-muted);
  font-size: 14px;
  margin-top: 5px;
}

/* ---------- 页脚 ---------- */
footer {
  background: linear-gradient(135deg, #0D0820 0%, #1a0f35 100%);
  color: var(--text-light);
  padding: 50px 0 25px;
  margin-top: 80px;
  position: relative;
  overflow: hidden;
}

footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-sakura);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 25px;
  margin-bottom: 30px;
  justify-content: center;
}

.footer-links a {
  color: #B8A9FF;
  font-size: 15px;
  padding: 5px 10px;
  border-radius: 5px;
  transition: all 0.3s ease;
}

.footer-links a:hover {
  color: var(--text-light);
  background: rgba(255, 255, 255, 0.1);
  text-decoration: none;
  transform: translateY(-2px);
}

.copyright {
  text-align: center;
  padding-top: 25px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 14px;
  color: #B8A9FF;
}

.copyright p {
  margin: 5px 0;
}

.legal-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 25px;
  margin-top: 20px;
}

.legal-links a {
  color: #B8A9FF;
  font-size: 13px;
  transition: color 0.3s ease;
}

.legal-links a:hover {
  color: var(--text-light);
  text-decoration: underline;
}

/* ---------- 响应式设计 ---------- */
@media (max-width: 1024px) {
  .grid-list {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 20px;
  }

  .characters-grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 25px;
  }
}

@media (max-width: 768px) {
  .header-inner {
    flex-direction: column;
    text-align: center;
  }

  .logo h1 {
    font-size: 28px;
  }

  nav ul {
    justify-content: center;
    gap: 8px;
  }

  nav ul li a {
    font-size: 13px;
    padding: 6px 12px;
  }

  .grid-list {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 15px;
  }

  h2 {
    font-size: 24px;
  }

  h3 {
    font-size: 18px;
  }

  .detail-section {
    padding: 25px;
  }

  .download-section {
    padding: 30px 20px;
  }

  .btn {
    padding: 12px 25px;
    font-size: 14px;
    margin: 8px;
  }

  .platform-features {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .character-card {
    padding: 20px;
  }

  .character-card img {
    width: 120px;
    height: 120px;
  }

  .reviews-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  aside {
    padding: 20px;
  }

  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }

  .stat-number {
    font-size: 20px;
  }

  .footer-links {
    gap: 15px;
  }

  .legal-links {
    gap: 15px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

  .grid-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .comic-info {
    padding: 12px;
  }

  .comic-info h3 {
    font-size: 15px;
  }

  .comic-info p {
    font-size: 12px;
  }

  .tag {
    font-size: 11px;
    padding: 3px 8px;
  }

  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }

  .stat-item {
    padding: 12px;
  }

  .stat-number {
    font-size: 18px;
  }

  .download-section {
    padding: 25px 15px;
  }

  .btn {
    display: block;
    width: 100%;
    margin: 10px 0;
  }

  .character-card img {
    width: 100px;
    height: 100px;
  }

  .character-card {
    padding: 15px;
  }
}

/* ---------- 动画与交互增强 ---------- */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* 选中文本样式 */
::selection {
  background: var(--primary-light);
  color: white;
}

/* 链接下划线动画 */
.nav-link, .footer-links a, .legal-links a {
  position: relative;
}

.nav-link::after, .footer-links a::after, .legal-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s ease;
}

.nav-link:hover::after, .footer-links a:hover::after, .legal-links a:hover::after {
  width: 100%;
}

/* 毛玻璃效果增强 */
.glass-effect {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* 渐变边框卡片 */
.gradient-border {
  position: relative;
  background: var(--bg-card);
  border: 2px solid transparent;
  background-clip: padding-box;
}

.gradient-border::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: var(--gradient-primary);
  border-radius: inherit;
  z-index: -1;
}

/* 悬浮光效 */
.hover-glow:hover {
  box-shadow: 0 0 20px rgba(124, 92, 252, 0.3), 0 8px 25px rgba(0, 0, 0, 0.1);
}

/* 加载动画 */
.loading {
  position: relative;
  overflow: hidden;
}

.loading::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  animation: shimmer 1.5s infinite;
}

/* 暗色模式切换按钮 */
.theme-toggle {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: white;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  z-index: 999;
  transition: all 0.3s ease;
}

.theme-toggle:hover {
  transform: scale(1.1) rotate(180deg);
}

/* 回到顶部按钮 */
.back-to-top {
  position: fixed;
  bottom: 90px;
  right: 30px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--bg-card);
  color: var(--primary);
  border: 2px solid var(--primary);
  cursor: pointer;
  box-shadow: var(--shadow-md);
  z-index: 999;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.back-to-top:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-5px);
}
```