:root {
  --primary: #6da2df;
  --secondary: #ff4081;
  --dark: #121212;
  --darker: #0a0a0a;
  --light: #f5f5f5;
  --gray: #333;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--darker);
  color: var(--light);
  line-height: 1.6;
}

/* ========== 头部样式 ========== */
.hero {
  background: linear-gradient(135deg, var(--dark), var(--darker));
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 0 20px;
  position: relative;
  overflow: hidden;
}

/* 轮播容器 */
.slideshow-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  overflow: hidden;
}

/* 幻灯片样式 */
.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
}

.slide.active {
  opacity: 0.5;
}

.hero-content {
  position: relative;
  z-index: 2; /* 确保内容在轮播图上 */
  max-width: 800px;
}

.hero h1 {
  font-size: 4rem;
  margin-bottom: 20px;
  background: linear-gradient(to right, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: fadeIn 1s ease;
  text-shadow: none;
}

.hero p {
  font-size: 1.5rem;
  margin-bottom: 30px;
  opacity: 0.9;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.7);
}

.cta-button {
  display: inline-block;
  padding: 15px 30px;
  background: linear-gradient(to right, var(--primary), var(--secondary));
  color: white;
  text-decoration: none;
  border-radius: 50px;
  font-weight: bold;
  font-size: 1.2rem;
  transition: transform 0.3s, box-shadow 0.3s;
  margin: 10px;
}

.cta-button:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

/* ========== 特色区域 ========== */
.features {
  padding: 80px 20px;
  background: var(--dark);
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
  font-size: 2.5rem;
  color: var(--primary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
}

.feature-card {
  background: rgba(30, 30, 30, 0.7);
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  transition: transform 0.3s;
  border: 1px solid var(--gray);
}

.feature-card:hover {
  transform: translateY(-10px);
  border-color: var(--primary);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 20px;
  color: var(--primary);
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 15px;
}

/* ========== 联系方式 ========== */
.contact {
  padding: 80px 20px;
  background: var(--dark);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
}

.contact-card {
  background: rgba(30, 30, 30, 0.7);
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  border: 1px solid var(--gray);
}

.contact-icon {
  font-size: 2rem;
  margin-bottom: 20px;
  color: var(--primary);
}

/* ========== QQ群卡片样式 ========== */
.qq-card {
  background: rgba(30, 30, 30, 0.7);
  border-radius: 10px;
  padding: 25px;
  border: 1px solid var(--gray);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  transition: all 0.3s ease;
  max-width: 800px; /* 增加最大宽度以适应横向布局 */
  margin: 0 auto;
}

.qq-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
  border-color: var(--primary);
}

/* 横向布局容器 */
.qq-content-wrapper {
  display: flex;
  flex-direction: column;
}

/* 宽屏横向布局 */
@media (min-width: 768px) {
  .qq-content-wrapper {
    flex-direction: row;
    gap: 25px;
  }
  
  .qq-main-content {
    flex: 1;
  }
  
  .qrcode-section {
    flex: 0 0 250px;
    align-self: center;
  }
}

.qq-header {
  display: flex;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--gray);
}

.qq-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 15px;
}

.qq-icon i {
  font-size: 2.5rem;
  color: white;
}

.qq-info h3 {
  font-size: 1.8rem;
  margin-bottom: 5px;
  color: var(--primary);
}

.qq-info p {
  font-size: 1rem;
  opacity: 0.8;
}

.qq-content {
  margin-bottom: 25px;
}

.qq-number {
  font-size: 1.3rem;
  margin-bottom: 15px;
  color: var(--light);
}

.qq-link {
  display: inline-block;
  padding: 10px 25px;
  background: linear-gradient(to right, var(--primary), var(--secondary));
  color: white;
  text-decoration: none;
  border-radius: 50px;
  font-weight: bold;
  transition: all 0.3s ease;
}

.qq-link:hover {
  transform: scale(1.05);
  box-shadow: 0 5px 15px rgba(79, 195, 247, 0.4);
}

.qq-link i {
  margin-right: 8px;
}

/* 二维码区域 */
.qrcode-section {
  background: rgba(20, 20, 20, 0.5);
  border-radius: 10px;
  padding: 15px;
  border: 1px dashed var(--gray);
}

.qrcode-section h4 {
  font-size: 1.2rem;
  margin-bottom: 15px;
  color: var(--primary);
  text-align: center;
}

.qrcode-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  background: rgba(30, 30, 30, 0.3);
  border-radius: 8px;
  color: var(--light);
  opacity: 0.7;
  transition: all 0.3s ease;
}

.qrcode-placeholder:hover {
  opacity: 1;
  background: rgba(40, 40, 40, 0.5);
}

.qrcode-placeholder i {
  font-size: 4rem;
  margin-bottom: 15px;
  color: var(--primary);
}

.qrcode-placeholder p {
  font-size: 1rem;
  text-align: center;
  max-width: 80%;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .qq-card {
    max-width: 100%;
  }
  
  .qq-icon {
    width: 50px;
    height: 50px;
  }
  
  .qq-icon i {
    font-size: 2rem;
  }
  
  .qq-info h3 {
    font-size: 1.5rem;
  }
  
  .qrcode-placeholder {
    min-height: 180px;
  }
}

/* ========== 页脚 ========== */
footer {
  background: #000;
  padding: 30px 20px;
  text-align: center;
  font-size: 0.9rem;
  color: var(--gray);
}

/* ========== 捐款信息展示区 ========== */
.data-section {
  padding: 60px 20px;
  max-width: 900px;
  margin: auto;
}

.data-section-title {
  font-size: 2em;
  margin-bottom: 20px;
  border-left: 6px solid #0078ff;
  padding-left: 10px;
}

.data-container {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.data-card {
  flex: 1;
  min-width: 280px;
  background: #1a1a1a;
  border: 1px solid #333;
  padding: 20px;
  border-radius: 10px;
}

.data-card h3 {
  margin-top: 0;
  color: #4fc3f7;
}

/* 捐款项样式 */
.donation-item {
  display: flex;
  align-items: center;
  padding: 15px;
  background: #1a1a1a;
  border-radius: 8px;
  margin-bottom: 15px;
  border: 1px solid #333;
}

/* 捐款列表容器 - 添加滚动条 */
#donation-list {
  max-height: 600px; /* 增加高度 */
  overflow-y: auto;
  padding-right: 10px;
}

.donation-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  overflow: hidden;
  margin-right: 15px;
  flex-shrink: 0;
}

.donation-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.donation-info {
  flex-grow: 1;
}

.donation-name {
  font-size: 1.1em;
  font-weight: bold;
  margin-bottom: 5px;
}

.donation-amount {
  color: #4fc3f7;
  font-size: 1.2em;
  font-weight: bold;
}

.donation-rank {
  width: 40px;
  height: 40px;
  background: #0078ff;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-weight: bold;
  font-size: 1.2em;
  flex-shrink: 0;
}

/* ========== 动画 ========== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}


/* ========== 服务器计时器样式 ========== */
.server-timer {
  text-align: center;
  margin: 30px 0;
  padding: 20px;
  background: rgba(30, 30, 30, 0.5);
  border-radius: 10px;
  border: 1px solid #333;
}

.timer-title {
  font-size: 1.5rem;
  margin-bottom: 10px;
}

.timer-display {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 1.8rem;
  margin-bottom: 10px;
}

.timer-display span {
  background: linear-gradient(to right, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: bold;
  min-width: 40px;
  text-align: center;
}

.timer-subtitle {
  font-size: 1rem;
  opacity: 0.7;
}

/* ========== 友情链接卡片样式 ========== */
.links-section {
  padding: 60px 20px;
  background: var(--dark);
}

.links-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 25px;
  max-width: 1000px;
  margin: 0 auto;
}

.link-item {
  width: 200px;
  text-align: center;
  background: rgba(30, 30, 30, 0.7);
  border-radius: 10px;
  padding: 25px 15px;
  transition: all 0.3s ease;
  border: 1px solid var(--gray);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.link-item:hover {
  transform: translateY(-10px);
  border-color: var(--primary);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
  background: rgba(40, 40, 40, 0.8);
}

.link-item a {
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--light);
  text-decoration: none;
  font-size: 1rem;
  height: 100%;
}

.link-icon {
  font-size: 2.5rem;
  margin-bottom: 15px;
  color: var(--primary);
  transition: transform 0.3s ease;
}

.link-item:hover .link-icon {
  transform: scale(1.2);
  color: var(--secondary);
}

.link-item span {
  font-size: 1.1rem;
  font-weight: 500;
  transition: color 0.3s ease;
}

.link-item:hover span {
  color: var(--primary);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .links-container {
    gap: 15px;
  }
  
  .link-item {
    width: 160px;
    padding: 20px 10px;
  }
  
  .link-icon {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .links-container {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  
  .link-item {
    width: 100%;
  }
}

/* ================== 纪念墙样式 ================== */
.memorial {
  padding: 60px 20px;
  text-align: center;
  background: var(--dark);
}

.memorial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr); /* 从4列改为3列 */
  gap: 25px;
  max-width: 1200px;
  margin: 0 auto;
}

.memorial-card {
  background: rgba(30, 30, 30, 0.7);
  border: 1px solid var(--gray);
  border-radius: 12px;
  padding: 25px;
  text-align: center;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 250px;
}

.memorial-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
  border-color: var(--primary);
  background: rgba(40, 40, 40, 0.8);
}

.memorial-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: 15px;
}

.memorial-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.memorial-info h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
  color: var(--primary);
}

.memorial-info p {
  font-size: 1rem;
  color: #bbb;
  line-height: 1.5;
}

/* 查看全部按钮样式 */
.view-all-button {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--light);
  text-decoration: none;
  width: 100%;
  height: 100%;
  padding: 25px;
}

.view-all-button i {
  font-size: 3rem;
  margin-bottom: 15px;
  color: var(--primary);
  transition: transform 0.3s ease;
}

.view-all-button span {
  font-size: 1.2rem;
  font-weight: 500;
  transition: color 0.3s ease;
}

.memorial-card:hover .view-all-button i {
  transform: scale(1.2);
  color: var(--secondary);
}

.memorial-card:hover .view-all-button span {
  color: var(--primary);
}

/* 响应式设计 - 在中等屏幕上改为垂直布局 */
@media (max-width: 1000px) {
  .memorial-content {
    flex-direction: column;
    align-items: center;
  }
  
  .memorial-grid, 
  .view-all-card {
    width: 100%;
    max-width: 100%;
  }
  
  .view-all-card {
    margin-top: 30px;
  }
}

/* 响应式设计 - 在小屏幕上改为1列 */
@media (max-width: 768px) {
  .memorial-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
  }
}

/* ========== 响应式设计 ========== */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .hero p {
    font-size: 1.2rem;
  }
  
  .features-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  /* 捐款项优化：保持水平布局并添加滚动 */
  .data-container {
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 10px;
  }
  
  .donation-item {
    min-width: 280px;
    padding: 10px;
  }
  
  .donation-avatar {
    width: 50px;
    height: 50px;
    margin-right: 10px;
    margin-bottom: 0;
  }
  
  .donation-name {
    font-size: 1em;
  }
  
  .donation-amount {
    font-size: 1.1em;
  }
  
  /* 移动端计时器样式调整 */
  .timer-display {
    font-size: 1.5rem;
    gap: 5px;
  }

  /* 纪念墙内容区域 - 移动端响应式 */
  .memorial-content {
    flex-direction: column;
    align-items: center;
  }
  
  .memorial-grid {
    width: 100%;
  }
  
  .view-all-card {
    width: 100%;
    max-width: 500px;
  }
}

/* ================== 纪念墙内容样式 ================== */
.memorial-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px;
  max-width: 1400px;
  margin: 0 auto;
}

.memorial-grid {
  flex: 3;
  min-width: 300px;
}

.view-all-card {
  flex: 1;
  min-width: 250px;
  max-width: 300px;
}