```css
/* ===== 重置与基础变量 ===== */
:root {
  --bg-primary: #0a0a18;
  --bg-secondary: #14142e;
  --bg-card: #1a1a35;
  --bg-card-hover: #22224a;
  --border-color: #2d2d55;
  --text-primary: #e0e0f0;
  --text-secondary: #b0b0d0;
  --text-muted: #8888aa;
  --accent: #8b5cf6;
  --accent-light: #a78bfa;
  --accent-gradient: linear-gradient(135deg, #7c3aed, #6d28d9);
  --accent-gradient-hover: linear-gradient(135deg, #8b5cf6, #7c3aed);
  --glow: 0 0 20px rgba(139, 92, 246, 0.3);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-pill: 40px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background 0.3s ease, color 0.3s ease;
}

/* 暗色滚动条 */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: #0d0d20;
  border-radius: 10px;
}

::-webkit-scrollbar-thumb {
  background: #2d2d55;
  border-radius: 10px;
  border: 2px solid #0d0d20;
}

::-webkit-scrollbar-thumb:hover {
  background: #3d3d6d;
}

::selection {
  background: var(--accent);
  color: #ffffff;
}

/* ===== 排版 ===== */
h1, h2, h3, h4, h5, h6 {
  color: #f0f0ff;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(1.8rem, 4vw, 2.2rem);
  margin-bottom: 0.5rem;
}

h2 {
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  border-left: 4px solid var(--accent);
  padding-left: 0.8rem;
  margin: 1.5rem 0 1rem;
  position: relative;
  overflow: hidden;
}

h2::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 60px;
  height: 2px;
  background: var(--accent-gradient);
  border-radius: 2px;
}

h3 {
  font-size: clamp(1.1rem, 2.5vw, 1.3rem);
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

p {
  margin: 0.5rem 0;
  color: var(--text-secondary);
}

a {
  color: var(--accent-light);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: #c4b5fd;
  text-decoration: none;
}

img {
  background: #1c1c3e;
  max-width: 100%;
  height: auto;
  display: block;
}

/* ===== 容器与布局 ===== */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  width: 100%;
}

/* ===== 导航栏 ===== */
.nav {
  background: rgba(13, 13, 32, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 1rem 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(45, 45, 85, 0.5);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav h1 {
  margin: 0;
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  color: #f0f0ff;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
}

.nav a {
  color: #d0d0e8;
  font-weight: 500;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-pill);
  transition: all 0.3s ease;
  position: relative;
}

.nav a:hover {
  color: var(--accent-light);
  background: rgba(139, 92, 246, 0.1);
  text-decoration: none;
}

.nav a.active {
  color: var(--accent-light);
  background: rgba(139, 92, 246, 0.15);
  box-shadow: inset 0 0 0 1px rgba(139, 92, 246, 0.3);
}

/* ===== 卡片网格 ===== */
.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  animation: cardIn 0.6s ease backwards;
}

.card:nth-child(1) { animation-delay: 0.05s; }
.card:nth-child(2) { animation-delay: 0.1s; }
.card:nth-child(3) { animation-delay: 0.15s; }
.card:nth-child(4) { animation-delay: 0.2s; }
.card:nth-child(5) { animation-delay: 0.25s; }
.card:nth-child(6) { animation-delay: 0.3s; }
.card:nth-child(7) { animation-delay: 0.35s; }
.card:nth-child(8) { animation-delay: 0.4s; }
.card:nth-child(9) { animation-delay: 0.45s; }
.card:nth-child(10) { animation-delay: 0.5s; }
.card:nth-child(11) { animation-delay: 0.55s; }
.card:nth-child(12) { animation-delay: 0.6s; }

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

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.05), transparent);
  transition: left 0.5s ease;
}

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

.card:hover {
  transform: translateY(-8px) scale(1.02);
  border-color: var(--accent);
  box-shadow: var(--glow), 0 10px 30px rgba(0, 0, 0, 0.3);
  background: var(--bg-card-hover);
}

.card img {
  border-radius: var(--radius-sm);
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform 0.4s ease, filter 0.4s ease;
  filter: brightness(0.95);
}

.card:hover img {
  transform: scale(1.03);
  filter: brightness(1.05);
}

.card h3 {
  margin: 0.8rem 0 0.3rem;
  font-size: 1.1rem;
  transition: color 0.3s ease;
}

.card:hover h3 {
  color: var(--accent-light);
}

.card p {
  margin: 0.2rem 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.badge {
  display: inline-block;
  background: rgba(45, 45, 85, 0.8);
  color: #c4b5fd;
  padding: 0.2rem 0.8rem;
  border-radius: 20px;
  font-size: 0.75rem;
  margin: 0.25rem 0.5rem 0 0;
  border: 1px solid rgba(139, 92, 246, 0.2);
  transition: all 0.3s ease;
  backdrop-filter: blur(4px);
}

.badge:hover {
  background: rgba(139, 92, 246, 0.2);
  border-color: var(--accent);
}

/* ===== 侧边栏网格 ===== */
.sidebar-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 2rem;
  margin-top: 2rem;
}

.sidebar {
  background: rgba(20, 20, 46, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  transition: all 0.3s ease;
}

.sidebar:hover {
  border-color: var(--accent);
  box-shadow: var(--glow);
}

.sidebar h3 {
  color: #f0f0ff;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

/* ===== 排行榜 ===== */
.rank-list {
  list-style: none;
  padding: 0;
}

.rank-list li {
  border-bottom: 1px solid rgba(45, 45, 85, 0.5);
  padding: 0.6rem 0;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
}

.rank-list li:last-child {
  border-bottom: none;
}

.rank-list li:hover {
  color: var(--accent-light);
  padding-left: 0.5rem;
  background: rgba(139, 92, 246, 0.05);
  border-radius: var(--radius-sm);
}

.rank-list li span {
  color: var(--accent-light);
  font-weight: bold;
  min-width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(139, 92, 246, 0.1);
  border-radius: 50%;
  font-size: 0.8rem;
}

/* ===== 评论区 ===== */
.review-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 1rem;
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.review-box::after {
  content: '"';
  position: absolute;
  top: -10px;
  right: 10px;
  font-size: 4rem;
  color: rgba(139, 92, 246, 0.1);
  font-family: Georgia, serif;
}

.review-box:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.review-box p {
  margin: 0.5rem 0 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* ===== 页脚 ===== */
.footer {
  background: rgba(10, 10, 24, 0.9);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--border-color);
  padding: 2rem 1rem;
  margin-top: 3rem;
  color: var(--text-secondary);
}

.footer h3 {
  color: #f0f0ff;
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.footer-links a {
  color: var(--accent-light);
  font-size: 0.9rem;
  transition: all 0.3s ease;
  position: relative;
}

.footer-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.3s ease;
}

.footer-links a:hover {
  color: #c4b5fd;
  text-decoration: none;
}

.footer-links a:hover::after {
  width: 100%;
}

.footer p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 1.5rem;
}

.footer a {
  color: var(--accent-light);
}

/* ===== 按钮 ===== */
.btn {
  display: inline-block;
  background: var(--accent-gradient);
  color: #ffffff;
  padding: 0.8rem 2rem;
  border-radius: var(--radius-pill);
  font-weight: bold;
  margin: 0.5rem 0.5rem 0 0;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

.btn:hover {
  background: var(--accent-gradient-hover);
  color: white;
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(139, 92, 246, 0.4);
}

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

.btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 10px rgba(124, 58, 237, 0.3);
}

/* ===== 区块容器 ===== */
.description-section,
.platform-section,
.character-section {
  background: rgba(22, 22, 48, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 1.8rem;
  border-radius: var(--radius-lg);
  margin-top: 2rem;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.description-section:hover,
.platform-section:hover,
.character-section:hover {
  border-color: var(--accent);
  box-shadow: var(--glow);
}

.character-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.character-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

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

.character-card:hover::before {
  transform: scaleX(1);
}

.character-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
  box-shadow: var(--glow);
  background: var(--bg-card-hover);
}

.character-card img {
  border-radius: 50%;
  margin: 0 auto 0.8rem;
  width: 120px;
  height: 120px;
  object-fit: cover;
  border: 3px solid var(--border-color);
  transition: all 0.3s ease;
}

.character-card:hover img {
  border-color: var(--accent);
  transform: scale(1.05);
}

.character-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.character-card p {
  font-size: 0.85rem;
  margin: 0.2rem 0;
  color: var(--text-muted);
}

/* ===== 下载区块 ===== */
#download {
  background: rgba(20, 20, 46, 0.85);
  backdrop-filter: blur(8px);
  padding: 2rem;
  border-radius: var(--radius-lg);
  margin-top: 2rem;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

#download::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
  animation: pulse 4s ease-in-out infinite;
}

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

#download:hover {
  border-color: var(--accent);
  box-shadow: var(--glow);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .sidebar-grid {
    grid-template-columns: 1fr;
  }
  
  .container {
    padding: 1rem;
  }
}

@media (max-width: 768px) {
  .nav {
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem;
    gap: 0.8rem;
  }
  
  .nav h1 {
    font-size: 1.4rem;
  }
  
  .nav a {
    padding: 0.3rem 0.8rem;
    font-size: 0.9rem;
  }
  
  .grid-cards {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 1rem;
  }
  
  .card {
    padding: 0.8rem;
  }
  
  .card h3 {
    font-size: 0.95rem;
  }
  
  .card p {
    font-size: 0.8rem;
  }
  
  h1 {
    font-size: 1.6rem;
  }
  
  h2 {
    font-size: 1.3rem;
  }
  
  .btn {
    padding: 0.7rem 1.5rem;
    font-size: 0.9rem;
    width: 100%;
    margin: 0.5rem 0;
  }
  
  .description-section,
  .platform-section,
  .character-section {
    padding: 1.2rem;
  }
  
  .character-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 1rem;
  }
  
  .character-card img {
    width: 90px;
    height: 90px;
  }
  
  .sidebar {
    padding: 1rem;
  }
  
  .footer {
    padding: 1.5rem 1rem;
  }
  
  .footer-links {
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .grid-cards {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 0.8rem;
  }
  
  .card img {
    width: 100%;
    height: auto;
  }
  
  .card h3 {
    font-size: 0.85rem;
  }
  
  .badge {
    font-size: 0.65rem;
    padding: 0.15rem 0.5rem;
  }
  
  h2 {
    font-size: 1.1rem;
    padding-left: 0.5rem;
  }
  
  h3 {
    font-size: 1rem;
  }
  
  .review-box {
    padding: 0.8rem;
  }
  
  .character-grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  }
  
  .character-card {
    padding: 0.8rem;
  }
  
  .character-card img {
    width: 70px;
    height: 70px;
  }
}

/* ===== 滚动动画 ===== */
@media (prefers-reduced-motion: no-preference) {
  section {
    animation: sectionFade 0.8s ease backwards;
  }
  
  @keyframes sectionFade {
    from {
      opacity: 0;
      transform: translateY(20px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}

/* ===== 暗色模式（已是暗色，额外支持系统偏好） ===== */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #0a0a18;
    --bg-secondary: #14142e;
    --bg-card: #1a1a35;
    --border-color: #2d2d55;
  }
}

/* ===== 无障碍 ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ===== 链接悬停动效 ===== */
a[href^="#"] {
  position: relative;
}

a[href^="#"]::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  transition: width 0.3s ease;
}

a[href^="#"]:hover::after {
  width: 100%;
}

/* ===== 工具类 ===== */
.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

/* ===== 渐变Banner效果 ===== */
section[id] {
  position: relative;
}

section[id]::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.5;
}

/* ===== 玻璃拟态增强 ===== */
.nav,
.sidebar,
.footer,
.description-section,
.platform-section,
.character-section,
#download {
  background: rgba(20, 20, 46, 0.7);
  backdrop-filter: blur(10px) saturate(180%);
  -webkit-backdrop-filter: blur(10px) saturate(180%);
}

.card,
.review-box,
.character-card {
  background: rgba(26, 26, 53, 0.85);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

/* ===== 动画增强 ===== */
.card:hover,
.character-card:hover,
.review-box:hover {
  animation: glowPulse 2s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% {
    box-shadow: 0 0 10px rgba(139, 92, 246, 0.2);
  }
  50% {
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.4);
  }
}

/* ===== 打印样式 ===== */
@media print {
  body {
    background: #fff;
    color: #000;
  }
  
  .nav,
  .footer,
  .btn {
    display: none;
  }
  
  .container {
    max-width: 100%;
    padding: 0;
  }
  
  .card,
  .sidebar,
  .review-box,
  .character-card {
    break-inside: avoid;
    background: #fff;
    border: 1px solid #ddd;
  }
}
```