/* 现代暗色风样式 - 亚东科技 */
:root {
  --color-bg: #0b0b10;
  --color-card: #15151d;
  --color-card-border: #1f1f2e;
  --color-primary: #00c6ff;
  --color-primary-hover: #00a8e0;
  --color-accent: #7c4dff;
  --color-text: #e0e0e0;
  --color-text-secondary: #888;
  --color-navbar: rgba(11, 11, 16, 0.85);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 20px rgba(0, 198, 255, 0.2);
  --border-radius: 12px;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* 导航栏 */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--color-navbar);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  z-index: 1000;
  padding: 0 5%;
}

.navbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 15px 0;
}

.navbar-logo img {
  height: 80px;
  width: auto;
  filter: brightness(1.2);
}

.navbar-links {
  display: flex;
  list-style: none;
  gap: 30px;
}

.navbar-links a {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  font-size: 16px;
  transition: var(--transition);
  position: relative;
  padding: 5px 0;
}

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

.navbar-links a:hover {
  color: var(--color-primary);
}

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

/* Hero 区域 */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 100px 5% 50px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 50% 50%, rgba(0, 198, 255, 0.05) 0%, transparent 50%);
  z-index: -1;
}

.hero-content {
  max-width: 800px;
  z-index: 1;
}

.hero h3 {
  font-size: 4rem;
  margin-bottom: 20px;
  letter-spacing: 8px;
}

.hero-subtitle {
  font-size: 1.8rem;
  color: var(--color-text-secondary);
  margin-bottom: 30px;
  font-weight: 300;
}

.hero-stat {
  font-size: 1.2rem;
  color: var(--color-text-secondary);
}

.gradient-text {
  background: linear-gradient(90deg, #00c6ff, #7c4dff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: bold;
  font-size: 1.4em;
}

/* 卡片区域 */
.cards-section {
  padding: 80px 5%;
  max-width: 1400px;
  margin: 0 auto;
}

.cards-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.card {
  background: rgba(21, 21, 29, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--border-radius);
  padding: 30px;
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35), 0 0 20px rgba(0, 198, 255, 0.15);
  border-color: rgba(0, 198, 255, 0.25);
}

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

.card-wide {
  grid-column: span 2;
}

.card-icon {
  font-size: 2.5rem;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.card-title {
  font-size: 1.6rem;
  margin-bottom: 20px;
  color: var(--color-text);
  font-weight: 600;
}

.card-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card-links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.card-link,
.card-link-primary {
  display: block;
  padding: 12px 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  color: var(--color-text);
  text-decoration: none;
  transition: var(--transition);
  text-align: center;
  font-size: 14px;
}

.card-link-primary {
  background: linear-gradient(135deg, rgba(0, 198, 255, 0.1), rgba(124, 77, 255, 0.1));
  border-color: rgba(0, 198, 255, 0.3);
  color: var(--color-primary);
  font-weight: 500;
}

.card-link:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateX(5px);
}

.card-link-primary:hover {
  background: linear-gradient(135deg, rgba(0, 198, 255, 0.2), rgba(124, 77, 255, 0.2));
  border-color: var(--color-primary);
  transform: translateX(5px);
}

/* 底部 */
.site-footer {
  background: var(--color-card);
  border-top: 1px solid var(--color-card-border);
  padding: 40px 5%;
  text-align: center;
  margin-top: 80px;
}

.footer-info {
  max-width: 800px;
  margin: 0 auto;
  color: var(--color-text-secondary);
  font-size: 14px;
}

.footer-info a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition);
}

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

/* 响应式设计 */
@media (max-width: 1024px) {
  .card-wide {
    grid-column: span 1;
  }
  
  .cards-container {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
  
  .hero h3 {
    font-size: 3rem;
  }
}

@media (max-width: 768px) {
  .navbar-links {
    gap: 20px;
  }
  
  .navbar-links a {
    font-size: 14px;
  }
  
  .hero {
    padding: 120px 5% 50px;
  }
  
  .hero h3 {
    font-size: 2.5rem;
    letter-spacing: 4px;
  }
  
  .hero-subtitle {
    font-size: 1.4rem;
  }
  
  .cards-container {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
  }
  
  .card {
    padding: 20px;
  }
  
  .card-links-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
}

@media (max-width: 480px) {
  .navbar-inner {
    flex-direction: column;
    gap: 15px;
  }
  
  .navbar-links {
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .hero h3 {
    font-size: 2rem;
    letter-spacing: 2px;
  }
  
  .hero-subtitle {
    font-size: 1.2rem;
  }
  
  .cards-container {
    grid-template-columns: 1fr;
  }
  
  .card-links-grid {
    grid-template-columns: 1fr;
  }
}

/* APlayer 自定义样式 */
.aplayer {
  background: var(--color-card) !important;
  border: 1px solid var(--color-card-border) !important;
  border-radius: var(--border-radius) !important;
  margin: 20px auto !important;
  max-width: 600px !important;
  box-shadow: var(--shadow-card) !important;
}

.aplayer .aplayer-info {
  border-top: 1px solid var(--color-card-border) !important;
}

.aplayer .aplayer-list ol li {
  border-top: 1px solid var(--color-card-border) !important;
  color: var(--color-text) !important;
}

.aplayer .aplayer-list ol li:hover {
  background: rgba(255, 255, 255, 0.05) !important;
}

.aplayer .aplayer-list ol li.aplayer-list-light {
  background: rgba(0, 198, 255, 0.1) !important;
}

/* ========== 友情赞助卡片 ========== */
.sponsor-images {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
}

.sponsor-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.sponsor-item img {
  width: 160px;
  height: 160px;
  object-fit: contain;
  border-radius: 8px;
  background: #fff;
  padding: 8px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.sponsor-item img:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 20px rgba(0, 198, 255, 0.25);
}

.sponsor-item span {
  color: var(--color-text-secondary);
  font-size: 14px;
}

/* ========== 联系我们卡片 ========== */
.card-contact {
  border-left: 3px solid transparent;
  border-image: linear-gradient(180deg, var(--color-primary), var(--color-accent)) 1;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: background 0.3s ease;
}

.contact-item:hover {
  background: rgba(255, 255, 255, 0.08);
}

.contact-item i {
  font-size: 1.3rem;
  color: var(--color-primary);
  min-width: 24px;
  text-align: center;
}

.contact-item span {
  color: var(--color-text);
  font-size: 15px;
}

/* ========== 联系卡片响应式 ========== */
@media (max-width: 480px) {
  .sponsor-images {
    gap: 16px;
  }
  .sponsor-item img {
    width: 130px;
    height: 130px;
  }
  .contact-item {
    flex-direction: column;
    text-align: center;
    gap: 6px;
  }
}