/* ============================================
   网盘宝 - 暗色玻璃拟态 + 霓虹光效 UI
   ============================================ */

/* ---------- CSS 变量 ---------- */
:root {
  /* 主背景 */
  --bg-primary: #0f0f1a;
  --bg-secondary: #1a1a2e;
  --bg-tertiary: #252542;
  
  /* 霓虹强调色 */
  --neon-cyan: #00d4ff;
  --neon-cyan-glow: rgba(0, 212, 255, 0.5);
  --neon-pink: #ff6b9d;
  --neon-pink-glow: rgba(255, 107, 157, 0.5);
  --neon-purple: #a855f7;
  --neon-purple-glow: rgba(168, 85, 247, 0.5);
  
  /* 玻璃效果 */
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-bg-hover: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-border-hover: rgba(0, 212, 255, 0.3);
  
  /* 文字 */
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-muted: rgba(255, 255, 255, 0.5);
  
  /* 间距 */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  
  /* 圆角 */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  /* 过渡 */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-neon-cyan: 0 0 20px var(--neon-cyan-glow), 0 0 40px rgba(0, 212, 255, 0.2);
  --shadow-neon-pink: 0 0 20px var(--neon-pink-glow), 0 0 40px rgba(255, 107, 157, 0.2);
}

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

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

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: var(--neon-cyan);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--neon-pink);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  outline: none;
}

input, textarea {
  font-family: inherit;
  outline: none;
  border: none;
}

ul, ol {
  list-style: none;
}

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

/* ---------- 背景效果 ---------- */
.bg-gradient {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  background: var(--bg-primary);
}

.bg-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  z-index: -1;
  animation: float 20s ease-in-out infinite;
}

.bg-orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--neon-cyan-glow) 0%, transparent 70%);
  top: -200px;
  left: -200px;
  animation-delay: 0s;
}

.bg-orb-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--neon-pink-glow) 0%, transparent 70%);
  bottom: -150px;
  right: -150px;
  animation-delay: -10s;
}

.bg-orb-3 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--neon-purple-glow) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: -5s;
  opacity: 0.5;
}

@keyframes float {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  25% {
    transform: translate(50px, -30px) scale(1.1);
  }
  50% {
    transform: translate(-30px, 50px) scale(0.95);
  }
  75% {
    transform: translate(-50px, -20px) scale(1.05);
  }
}

/* 网格纹理 */
.bg-grid {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
}

/* ---------- 玻璃拟态卡片 ---------- */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
}

.glass:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  box-shadow: var(--shadow-neon-cyan);
}

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-normal);
}

.glass-card:hover {
  transform: translateY(-4px);
  border-color: var(--glass-border-hover);
  box-shadow: var(--shadow-neon-cyan);
}

/* ---------- 霓虹按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition-normal);
  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, 0.2), transparent);
  transition: left 0.5s ease;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--neon-cyan) 0%, var(--neon-purple) 100%);
  color: var(--bg-primary);
  box-shadow: var(--shadow-neon-cyan);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px var(--neon-cyan-glow), 0 0 60px rgba(0, 212, 255, 0.3);
}

.btn-secondary {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  border-color: var(--neon-pink);
  color: var(--neon-pink);
  box-shadow: var(--shadow-neon-pink);
}

.btn-neon-cyan {
  background: transparent;
  border: 2px solid var(--neon-cyan);
  color: var(--neon-cyan);
  text-shadow: 0 0 10px var(--neon-cyan-glow);
  box-shadow: 0 0 10px var(--neon-cyan-glow), inset 0 0 10px rgba(0, 212, 255, 0.1);
}

.btn-neon-cyan:hover {
  background: var(--neon-cyan);
  color: var(--bg-primary);
  text-shadow: none;
  box-shadow: var(--shadow-neon-cyan);
}

.btn-neon-pink {
  background: transparent;
  border: 2px solid var(--neon-pink);
  color: var(--neon-pink);
  text-shadow: 0 0 10px var(--neon-pink-glow);
  box-shadow: 0 0 10px var(--neon-pink-glow), inset 0 0 10px rgba(255, 107, 157, 0.1);
}

.btn-neon-pink:hover {
  background: var(--neon-pink);
  color: var(--bg-primary);
  text-shadow: none;
  box-shadow: var(--shadow-neon-pink);
}

/* ---------- 搜索框 ---------- */
.search-container {
  position: relative;
  width: 100%;
  max-width: 600px;
}

.search-input {
  width: 100%;
  padding: var(--space-lg) var(--space-xl);
  padding-left: 56px;
  background: var(--glass-bg);
  border: 2px solid var(--glass-border);
  border-radius: var(--radius-xl);
  color: var(--text-primary);
  font-size: 1.1rem;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
}

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

.search-input:focus {
  border-color: var(--neon-cyan);
  box-shadow: var(--shadow-neon-cyan);
  background: var(--glass-bg-hover);
}

.search-icon {
  position: absolute;
  left: var(--space-lg);
  top: 50%;
  transform: translateY(-50%);
  color: var(--neon-cyan);
  font-size: 1.2rem;
  pointer-events: none;
      z-index: 10000;
}

.search-btn {
  position: absolute;
  right: var(--space-sm);
  top: 50%;
  transform: translateY(-50%);
  padding: var(--space-md) var(--space-lg);
  background: linear-gradient(135deg, var(--neon-cyan) 0%, var(--neon-purple) 100%);
  border-radius: var(--radius-md);
  color: var(--bg-primary);
  font-weight: 600;
  transition: all var(--transition-normal);
}

.search-btn:hover {
  transform: translateY(-50%) scale(1.05);
  box-shadow: var(--shadow-neon-cyan);
}

/* ---------- 导航栏 ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-md) var(--space-xl);
  background: rgba(15, 15, 26, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
}

.navbar-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--neon-cyan) 0%, var(--neon-pink) 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--neon-cyan) 0%, var(--neon-pink) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: var(--space-lg);
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--neon-cyan);
  transition: width var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--neon-cyan);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 80%;
}

/* ---------- Hero 区域 ---------- */
.hero {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px var(--space-xl) var(--space-3xl);
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  margin-bottom: var(--space-lg);
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--neon-cyan) 50%, var(--neon-pink) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: glow-text 3s ease-in-out infinite alternate;
}

@keyframes glow-text {
  0% {
    filter: drop-shadow(0 0 10px var(--neon-cyan-glow));
  }
  100% {
    filter: drop-shadow(0 0 20px var(--neon-pink-glow));
  }
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  max-width: 600px;
}

.hero-search {
  width: 100%;
  max-width: 700px;
  animation: fadeSlideUp 0.8s ease-out;
}

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

/* ---------- 分类标签 ---------- */
.category-tags {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  justify-content: center;
  margin-top: var(--space-xl);
  animation: fadeSlideUp 0.8s ease-out 0.2s backwards;
}

.category-tag {
  padding: var(--space-sm) var(--space-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.category-tag:hover, .category-tag.active {
  background: var(--neon-cyan);
  border-color: var(--neon-cyan);
  color: var(--bg-primary);
  box-shadow: var(--shadow-neon-cyan);
}

/* ---------- 资源卡片网格 ---------- */
.resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-lg);
  padding: var(--space-xl);
  max-width: 1400px;
  margin: 0 auto;
}

.resource-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
  cursor: pointer;
  animation: fadeSlideUp 0.6s ease-out backwards;
}

.resource-card:nth-child(1) { animation-delay: 0.1s; }
.resource-card:nth-child(2) { animation-delay: 0.15s; }
.resource-card:nth-child(3) { animation-delay: 0.2s; }
.resource-card:nth-child(4) { animation-delay: 0.25s; }
.resource-card:nth-child(5) { animation-delay: 0.3s; }
.resource-card:nth-child(6) { animation-delay: 0.35s; }
.resource-card:nth-child(7) { animation-delay: 0.4s; }
.resource-card:nth-child(8) { animation-delay: 0.45s; }

.resource-card:hover {
  transform: translateY(-8px);
  border-color: var(--neon-cyan);
  box-shadow: var(--shadow-neon-cyan);
}

.resource-card-image {
  width: 100%;
  height: 160px;
  object-fit: cover;
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
}

.resource-card-content {
  padding: var(--space-lg);
}

.resource-card-category {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background: linear-gradient(135deg, var(--neon-cyan-glow), var(--neon-purple-glow));
  border-radius: var(--radius-xl);
  font-size: 0.75rem;
  color: var(--neon-cyan);
  margin-bottom: var(--space-sm);
}

.resource-card-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.resource-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.resource-card-meta span {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.resource-card-tags {
  display: flex;
  gap: var(--space-xs);
  margin-top: var(--space-md);
  flex-wrap: wrap;
}

.resource-tag {
  padding: 2px var(--space-sm);
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  color: var(--neon-cyan);
}

/* ---------- 列表页布局 ---------- */
.page-container {
  display: flex;
  max-width: 1400px;
  margin: 0 auto;
  padding: 100px var(--space-xl) var(--space-xl);
  gap: var(--space-xl);
}

.sidebar {
  width: 280px;
  flex-shrink: 0;
  position: sticky;
  top: 100px;
  height: fit-content;
}

.sidebar-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.sidebar-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--glass-border);
}

.filter-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.filter-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-item:hover {
  background: var(--glass-bg-hover);
  color: var(--text-primary);
}

.filter-item.active {
  background: var(--neon-cyan);
  color: var(--bg-primary);
}

.filter-item input {
  display: none;
}

.filter-checkbox {
  width: 18px;
  height: 18px;
  border: 2px solid var(--glass-border);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.filter-item.active .filter-checkbox {
  background: var(--neon-cyan);
  border-color: var(--neon-cyan);
}

.filter-checkbox::after {
  content: '✓';
  color: var(--bg-primary);
  font-size: 0.75rem;
  font-weight: bold;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.filter-item.active .filter-checkbox::after {
  opacity: 1;
}

.main-content {
  flex: 1;
  min-width: 0;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--glass-border);
}

.page-title {
  font-size: 1.5rem;
  font-weight: 700;
}

.page-count {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.main-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}

/* ---------- 搜索页 ---------- */
.search-highlight {
  background: linear-gradient(135deg, var(--neon-cyan-glow), var(--neon-pink-glow));
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--text-primary);
}

.hot-searches {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.hot-search-tag {
  padding: var(--space-sm) var(--space-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  color: var(--text-secondary);
  font-size: 0.85rem;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.hot-search-tag:hover {
  border-color: var(--neon-pink);
  color: var(--neon-pink);
}

.search-results {
  margin-top: var(--space-xl);
}

.search-result-item {
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-md);
  transition: all var(--transition-normal);
  animation: fadeSlideUp 0.5s ease-out backwards;
}

.search-result-item:hover {
  border-color: var(--neon-cyan);
  box-shadow: var(--shadow-neon-cyan);
}

.search-result-thumb {
  width: 120px;
  height: 80px;
  object-fit: cover;
  border-radius: var(--radius-md);
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
}

.search-result-content {
  flex: 1;
  min-width: 0;
}

.search-result-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.search-result-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---------- 详情页 ---------- */
.detail-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 100px var(--space-xl) var(--space-xl);
}

.detail-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.detail-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, var(--text-primary), var(--neon-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.detail-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  color: var(--text-muted);
  font-size: 0.9rem;
}

.detail-section {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.detail-section-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
  color: var(--neon-cyan);
}

.download-buttons {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.download-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-lg);
  background: linear-gradient(135deg, var(--neon-cyan) 0%, var(--neon-purple) 100%);
  border-radius: var(--radius-md);
  color: var(--bg-primary);
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition-normal);
  cursor: pointer;
}

.download-btn:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-neon-cyan);
}

.download-btn.baidu {
  background: linear-gradient(135deg, #516fa3, #283a5e);
}

.download-btn.quark {
  background: linear-gradient(135deg, #00c853, #009624);
}

.download-btn.xunlei {
  background: linear-gradient(135deg, #ff9800, #f57c00);
}

.password-box {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: rgba(0, 212, 255, 0.1);
  border: 1px dashed var(--neon-cyan);
  border-radius: var(--radius-md);
}

.password-label {
  color: var(--text-secondary);
}

.password-code {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--neon-cyan);
  letter-spacing: 4px;
  text-shadow: 0 0 10px var(--neon-cyan-glow);
}

.notice-box {
  padding: var(--space-lg);
  background: rgba(255, 107, 157, 0.1);
  border: 1px solid rgba(255, 107, 157, 0.3);
  border-radius: var(--radius-md);
  color: var(--neon-pink);
  text-align: center;
}

.notice-box .highlight {
  font-weight: 700;
  text-shadow: 0 0 10px var(--neon-pink-glow);
}

/* ---------- 二维码弹窗 ---------- */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

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

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  max-width: 400px;
  width: 90%;
  text-align: center;
  transform: scale(0.9);
  transition: transform var(--transition-normal);
}

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

.modal-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--neon-cyan);
}

.modal-qrcode {
  width: 200px;
  height: 200px;
  margin: var(--space-lg) auto;
  background: var(--bg-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--glass-border);
}

.modal-qrcode img {
  max-width: 100%;
  max-height: 100%;
}

.modal-desc {
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

.modal-close {
  padding: var(--space-md) var(--space-xl);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-close:hover {
  border-color: var(--neon-pink);
  color: var(--neon-pink);
}

/* ---------- 页脚 ---------- */
.footer {
  text-align: center;
  padding: var(--space-2xl);
  border-top: 1px solid var(--glass-border);
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer a {
  color: var(--neon-cyan);
}

/* ---------- 加载状态 ---------- */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--glass-border);
  border-top-color: var(--neon-cyan);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* ---------- 响应式设计 ---------- */
@media (max-width: 1024px) {
  .sidebar {
    display: none;
  }
  
  .page-container {
    padding-top: 80px;
  }
}

@media (max-width: 768px) {
  .navbar-content {
    flex-direction: column;
    gap: var(--space-md);
  }
  
  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .hero {
    min-height: 50vh;
    padding: 100px var(--space-md) var(--space-2xl);
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .search-input {
    padding: var(--space-md);
    padding-left: 48px;
    font-size: 1rem;
  }
  
  .resource-grid {
    grid-template-columns: 1fr;
    padding: var(--space-md);
  }
  
  .detail-title {
    font-size: 1.5rem;
  }
  
  .download-buttons {
    grid-template-columns: 1fr;
  }
  
  .search-result-item {
    flex-direction: column;
  }
  
  .search-result-thumb {
    width: 100%;
    height: 150px;
  }
}

/* ---------- 工具类 ---------- */
.text-neon-cyan {
  color: var(--neon-cyan);
}

.text-neon-pink {
  color: var(--neon-pink);
}

.text-gradient {
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.mt-3 { margin-top: var(--space-lg); }
.mt-4 { margin-top: var(--space-xl); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--space-sm); }
.gap-2 { gap: var(--space-md); }
.gap-3 { gap: var(--space-lg); }