/* ============================================================
   首页专用样式 - 第二部分：首页与核心功能模块
   风格：纯简约高级风
   主色调：雅灰(底色) / 静谧蓝(主强调色) / 奶白(辅助色)
   ============================================================ */

/* ==================== 1. 导航栏增强 ==================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(245, 245, 247, 0.72);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: none;
  z-index: 1000;
  transition: all 0.3s ease;
}

.navbar.scrolled {
  background: rgba(245, 245, 247, 0.92);
  box-shadow: 0 1px 8px rgba(0,0,0,0.04);
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: all 0.25s ease;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  position: relative;
  display: inline-block;
}

.nav-link:hover {
  color: var(--color-primary);
  box-shadow: 0 2px 8px rgba(74, 123, 247, 0.15);
  transform: translateY(-1px);
}

.nav-link.active {
  color: var(--color-primary);
}

/* 移动端汉堡菜单 */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-sm);
  cursor: pointer;
  background: none;
  border: none;
  z-index: 1010;
}

.menu-toggle span {
  width: 20px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: all 0.3s ease;
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* 用户菜单按钮 */
.user-menu-btn {
  font-weight: 500;
  color: var(--color-text-secondary);
}

/* ==================== 2. Banner横幅 ==================== */
.banner {
  position: relative;
  width: 100%;
  height: 560px;
  overflow: hidden;
  margin-top: var(--nav-height);
}

.banner-carousel {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.banner-carousel .carousel-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.2s ease;
  will-change: opacity;
}

.banner-carousel .carousel-slide.active {
  opacity: 1;
}

.banner-carousel .carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* 简约高级处理：弱化饱和、提升质感 */
  filter: saturate(0.75) brightness(0.92) contrast(1.05);
}

.banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(245, 245, 247, 0.65) 0%,
    rgba(245, 245, 247, 0.3) 50%,
    rgba(74, 123, 247, 0.08) 100%
  );
  z-index: 2;
}

.banner-content {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: var(--space-2xl);
}

.banner-title {
  font-size: 2.8rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.banner-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-secondary);
  max-width: 520px;
  line-height: 1.6;
  margin-bottom: var(--space-xl);
}

.banner-cta {
  /* 立即加入按钮：圆角+hover加深+阴影+点击缩放 */
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 16px rgba(74, 123, 247, 0.25);
  transition: all 0.25s ease;
}

.banner-cta:hover {
  background: var(--color-primary-hover);
  box-shadow: 0 6px 24px rgba(74, 123, 247, 0.35);
  transform: translateY(-2px);
}

.banner-cta:active {
  transform: scale(0.97);
}

/* 轮播指示点 */
.banner-dots {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 4;
  display: flex;
  gap: var(--space-sm);
}

.banner-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-text-tertiary);
  cursor: pointer;
  transition: all 0.35s ease;
  border: none;
  padding: 0;
}

.banner-dot.active {
  background: var(--color-primary);
  width: 28px;
  border-radius: 4px;
  box-shadow: 0 0 8px rgba(74, 123, 247, 0.3);
}

/* ==================== 3. 首页图片展示区 ==================== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.gallery-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  position: relative;
  transition: all 0.3s ease;
  background: var(--color-bg-dark);
}

.gallery-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.gallery-item img {
  width: 100%;
  aspect-ratio: 2/1;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
  /* 简约高级处理 */
  filter: saturate(0.78) contrast(1.03);
}

.gallery-item:hover img {
  transform: scale(1.04);
}

/* 图片描述（图片下方） */
.gallery-item-desc {
  padding: var(--space-md) var(--space-md) var(--space-md);
  text-align: center;
}

.gallery-item-desc p {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* 大图灯箱 */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.88);
  z-index: 5000;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.lightbox-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-overlay img {
  max-width: 90%;
  max-height: 88vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 8px 40px rgba(0,0,0,0.4);
}

/* ==================== 4. 服务器视频展示区 ==================== */
.video-showcase {
  position: relative;
  width: 100%;
}

.video-showcase-main {
  width: 100%;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: #2A2A2E;
  position: relative;
  box-shadow: var(--shadow-lg);
}

.video-showcase-cover {
  position: relative;
  width: 100%;
  aspect-ratio: 16/7;
  background: var(--color-bg-dark);
  cursor: pointer;
  overflow: hidden;
}

.video-showcase-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* 简约高级处理 */
  filter: saturate(0.78) contrast(1.03);
  transition: transform 0.4s ease;
}

.video-showcase-main:hover .video-showcase-cover img {
  transform: scale(1.03);
}

/* 封面中央播放图标 */
.video-cover-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(74, 123, 247, 0.88);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  backdrop-filter: blur(8px);
  z-index: 2;
}

.video-cover-play svg {
  fill: #fff;
  width: 32px;
  height: 32px;
  margin-left: 4px;
}

.video-showcase-main:hover .video-cover-play {
  transform: translate(-50%, -50%) scale(1.08);
  background: var(--color-primary);
  box-shadow: 0 4px 20px rgba(74, 123, 247, 0.35);
}

/* 视频描述（下方） */
.video-showcase-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  gap: var(--space-md);
}

.video-showcase-desc {
  flex: 1;
  min-width: 0;
}

.video-showcase-desc p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.video-switch-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 8px 18px;
  font-size: 0.85rem;
  font-weight: 500;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all 0.25s ease;
  white-space: nowrap;
  flex-shrink: 0;
}

.video-switch-btn:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-md);
}

.video-switch-btn svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* 视频选择列表（切换视频） */
.video-list {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-lg);
  overflow-x: auto;
  padding-bottom: var(--space-sm);
  -webkit-overflow-scrolling: touch;
}

.video-list-item {
  flex-shrink: 0;
  width: 180px;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: all 0.25s ease;
  background: var(--color-bg);
  border: 2px solid transparent;
}

.video-list-item:hover {
  box-shadow: var(--shadow-md);
}

.video-list-item.active {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(74, 123, 247, 0.15);
}

.video-list-item img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  display: block;
  filter: saturate(0.78) contrast(1.03);
}

.video-list-item p {
  padding: 6px 10px;
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ==================== 5. 核心亮点区 ==================== */
.highlights-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.highlight-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  border: 1px solid transparent;
}

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

.highlight-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
}

.highlight-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.highlight-card p {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ==================== 6. 实时状态区 ==================== */
.section-alt {
  background: var(--color-bg);
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.status-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-md);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  position: relative;
}

.status-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.status-card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
}

.status-card-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.status-card-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.server-ip-value {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--color-primary);
}

.status-card-label {
  font-size: 0.82rem;
  color: var(--color-text-secondary);
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.status-text {
  font-size: 0.82rem;
  font-weight: 500;
}

.status-text.online { color: var(--color-success); }
.status-text.offline { color: var(--color-text-tertiary); }
.status-text.maintenance { color: var(--color-warning); }

.copy-ip-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: var(--space-xs);
}

.copy-ip-btn:active {
  transform: scale(0.95);
}

/* 维护状态提示 */
.maintenance-notice {
  margin-top: var(--space-xl);
  padding: var(--space-md) var(--space-lg);
  background: #FFF8E5;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  box-shadow: var(--shadow-sm);
}

.maintenance-notice strong {
  color: var(--color-warning);
}

/* 状态加载占位 */
.status-loading {
  display: inline-block;
  min-width: 40px;
  height: 1.25rem;
  background: var(--color-bg-dark);
  border-radius: var(--radius-sm);
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.8; }
}

/* ==================== 7. 最新公告区 ==================== */
.announcements-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.announcement-item {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
  transition: all 0.3s ease;
  border: 1px solid transparent;
  cursor: pointer;
  position: relative;
  /* 左侧竖线默认隐藏 */
  border-left: 3px solid transparent;
}

.announcement-item:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--color-border);
  border-left-color: var(--color-primary);
}

.announcement-badge {
  flex-shrink: 0;
  margin-top: 2px;
}

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

.announcement-content h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.announcement-new-tag {
  display: inline-block;
  padding: 1px 8px;
  font-size: 0.7rem;
  font-weight: 600;
  color: #fff;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  letter-spacing: 0.02em;
}

.pinned-icon {
  color: var(--color-warning);
  flex-shrink: 0;
}

.announcement-content p {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.announcement-meta {
  font-size: 0.8rem;
  color: var(--color-text-tertiary);
  margin-top: var(--space-sm);
}

/* 公告详情模态框 */
.modal-lg {
  max-width: 680px;
}

.ann-detail-meta {
  font-size: 0.85rem;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.ann-detail-content {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--color-text);
  max-height: 60vh;
  overflow-y: auto;
}

.ann-detail-content img {
  border-radius: var(--radius-md);
  margin: var(--space-md) 0;
}

/* ==================== 通用补充 ==================== */
/* 3秒信息区 + 玩法/下载/活动复用 */
.info-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.info-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  border: 1px solid transparent;
}

.info-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--color-border);
  transform: translateY(-2px);
}

.info-card-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
}

.info-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.info-card p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.5;
}

.server-ip-box {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--color-bg);
  padding: 8px 12px;
  border-radius: var(--radius-md);
  margin-top: var(--space-sm);
}

.server-ip-box code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-primary);
  flex: 1;
  text-align: left;
}

/* 玩法网格 */
.modes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-lg);
}

.mode-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  border: 1px solid transparent;
}

.mode-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--color-border);
  transform: translateY(-2px);
}

.mode-card-cover {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  background: var(--color-bg-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 120px;
}

.mode-card-body {
  padding: var(--space-md) var(--space-lg) var(--space-lg);
}

.mode-card-body h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.mode-card-body p {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.mode-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-md);
}

.mode-player-count {
  font-size: 0.8rem;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* 活动卡片 */
.activities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-lg);
}

.activity-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}

.activity-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--color-border);
}

.activity-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-primary);
}

.activity-status {
  display: inline-flex;
  margin-bottom: var(--space-md);
}

.activity-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.activity-time {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.activity-rewards {
  font-size: 0.85rem;
  color: var(--color-primary);
  margin-top: var(--space-md);
  font-weight: 500;
}

/* 下载卡片 */
.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.download-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  border: 1px solid transparent;
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.download-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--color-border);
}

.download-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.download-info {
  flex: 1;
  min-width: 0;
}

.download-info h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.download-info p {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

.download-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-xs);
}

.download-count {
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
}

/* 联系区域 */
.contact-box {
  text-align: center;
  padding: var(--space-3xl) var(--space-xl);
}

.contact-box h2 {
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.contact-box p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
}

.contact-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ==================== 响应式 ==================== */
@media (max-width: 1024px) {
  .highlights-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .status-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .banner {
    height: 420px;
  }

  .banner-title {
    font-size: 2rem;
  }

  .banner-subtitle {
    font-size: 1rem;
  }

  /* 移动端导航 */
  .navbar-links {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: var(--space-lg);
    gap: var(--space-xs);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    transform: translateY(-10px);
    opacity: 0;
    transition: all 0.3s ease;
  }

  .navbar-links.show {
    display: flex;
    transform: translateY(0);
    opacity: 1;
  }

  .nav-link {
    padding: var(--space-md);
    width: 100%;
    text-align: center;
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
  }

  .nav-link:hover {
    background: var(--color-bg);
    color: var(--color-primary);
    box-shadow: none;
    transform: none;
  }

  .menu-toggle {
    display: flex;
  }

  /* 图片展示 */
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

  /* 视频展示 */
  .video-showcase-info {
    flex-direction: column;
    text-align: center;
  }

  .video-list {
    justify-content: flex-start;
  }

  /* 亮点 */
  .highlights-grid {
    grid-template-columns: 1fr;
  }

  /* 状态 */
  .status-grid {
    grid-template-columns: 1fr;
  }

  .info-cards {
    grid-template-columns: 1fr;
  }

  .modes-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .activities-grid {
    grid-template-columns: 1fr;
  }

  .download-grid {
    grid-template-columns: 1fr;
  }

  .download-card {
    flex-direction: column;
    text-align: center;
  }

  .download-actions {
    align-items: center;
  }

  .section {
    padding: var(--space-xl) 0;
  }
}

@media (max-width: 480px) {
  .banner {
    height: 360px;
  }

  .banner-title {
    font-size: 1.6rem;
  }

  .banner-subtitle {
    font-size: 0.9rem;
  }

  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .modes-grid {
    grid-template-columns: 1fr;
  }

  .btn-lg {
    padding: 12px 22px;
    font-size: 0.9rem;
  }

  .video-cover-play {
    width: 56px;
    height: 56px;
  }

  .video-cover-play svg {
    width: 24px;
    height: 24px;
  }
}

/* ==================== 7.5 服务器介绍模块 ==================== */
.intro-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid transparent;
  transition: all var(--transition);
}
.intro-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-border);
}
.intro-card-center {
  text-align: center;
  background: var(--color-white);
}
.intro-card-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-lg);
}
.intro-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-md);
}
.intro-info-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.intro-info-label {
  font-size: 0.82rem;
  color: var(--color-text-tertiary);
}
.intro-info-value {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text);
}
.intro-info-value strong {
  color: var(--color-primary);
  font-weight: 600;
}
.intro-bg-text {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
  max-width: 640px;
  margin: 0 auto;
}
.team-grid {
  display: flex;
  gap: var(--space-xl);
  justify-content: center;
  flex-wrap: wrap;
}
.team-member {
  text-align: center;
  min-width: 120px;
}
.team-avatar {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-full);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-sm);
  overflow: hidden;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-primary);
}
.team-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.team-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
}
.team-role {
  font-size: 0.8rem;
  color: var(--color-primary);
  font-weight: 500;
}
.team-desc {
  font-size: 0.8rem;
  color: var(--color-text-tertiary);
  margin-top: 2px;
}
.rules-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.rule-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}
.rule-item .rule-num {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}
.rule-item.prohibition {
  font-weight: 500;
  color: var(--color-text);
}
.rule-item.prohibition strong {
  color: var(--color-primary);
}

/* ==================== 独有玩法 ==================== */
.unique-modes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--space-lg);
}
.unique-mode-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  border: 1px solid transparent;
  text-align: center;
}
.unique-mode-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--color-border);
  transform: translateY(-2px);
}
.unique-mode-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
}
.unique-mode-card h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}
.unique-mode-card p {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* ==================== 下载中心增强 ==================== */
.download-intro {
  text-align: center;
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
}
.download-tabs {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}
.download-tab {
  padding: 8px 18px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-full);
  background: var(--color-bg);
  border: 1.5px solid transparent;
  transition: all var(--transition);
  cursor: pointer;
}
.download-tab:hover {
  color: var(--color-primary);
  border-color: var(--color-primary-light);
}
.download-tab.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.download-card .download-meta {
  font-size: 0.78rem;
  color: var(--color-text-tertiary);
  margin-top: 4px;
}
.download-card .download-meta span {
  margin-right: var(--space-md);
}
.download-card.recommended {
  border: 1.5px solid var(--color-primary);
  position: relative;
}
.download-card.recommended::after {
  content: '推荐';
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 2px 10px;
  font-size: 0.7rem;
  font-weight: 600;
  color: #fff;
  background: var(--color-primary);
  border-radius: var(--radius-full);
}

/* 安装步骤 */
.install-steps {
  margin-top: var(--space-2xl);
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}
.step-card {
  text-align: center;
  position: relative;
}
.step-card::after {
  content: '';
  position: absolute;
  top: 28px;
  right: -32px;
  width: 32px;
  height: 2px;
  background: var(--color-border);
}
.step-card:last-child::after {
  display: none;
}
.step-number {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
}
.step-card h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}
.step-card p {
  font-size: 0.82rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* FAQ折叠 */
.faq-section {
  margin-top: var(--space-2xl);
}
.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.faq-item {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid transparent;
  transition: all var(--transition);
}
.faq-item:hover {
  border-color: var(--color-border);
}
.faq-question {
  padding: var(--space-md) var(--space-lg);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all var(--transition);
}
.faq-question:hover {
  color: var(--color-primary);
}
.faq-question svg {
  flex-shrink: 0;
  transition: transform 0.3s ease;
  color: var(--color-text-tertiary);
}
.faq-item.open .faq-question svg {
  transform: rotate(180deg);
  color: var(--color-primary);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 var(--space-lg);
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}
.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 var(--space-lg) var(--space-lg);
}
.faq-answer strong {
  color: var(--color-primary);
}

/* ==================== 客服支持模块 ==================== */
.support-faq {
  margin-bottom: var(--space-2xl);
}
.support-faq-tabs {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}
.support-faq-tab {
  padding: 8px 18px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-full);
  background: var(--color-bg);
  border: 1.5px solid transparent;
  transition: all var(--transition);
  cursor: pointer;
}
.support-faq-tab:hover {
  color: var(--color-primary);
}
.support-faq-tab.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.contact-info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
}
.contact-info-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}
.contact-info-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.contact-info-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
}
.contact-info-card h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}
.contact-info-card p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}
.qq-group-number {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary) !important;
}
.feedback-form-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
}
.feedback-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

/* ==================== 底部模块增强 ==================== */
.footer {
  background: var(--color-bg-dark);
  border-top: 2px solid var(--color-primary);
  padding: var(--space-2xl) 0 var(--space-lg);
}
.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-border);
}
.footer-brand .navbar-brand {
  margin-bottom: var(--space-sm);
}
.footer-desc {
  font-size: 0.85rem;
  color: var(--color-text-tertiary);
  line-height: 1.5;
}
.footer-links-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}
.footer-link-group h5 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}
.footer-link-group a {
  display: block;
  font-size: 0.82rem;
  color: var(--color-text-tertiary);
  padding: 3px 0;
  transition: color var(--transition);
}
.footer-link-group a:hover {
  color: var(--color-primary);
}
.footer-contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}
.footer-contact-item svg {
  color: var(--color-primary);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--color-text-tertiary);
}
.footer-legal {
  display: flex;
  gap: var(--space-lg);
}
.footer-legal a {
  font-size: 0.8rem;
  color: var(--color-text-tertiary);
  transition: color var(--transition);
}
.footer-legal a:hover {
  color: var(--color-primary);
}

/* ==================== 密码强度 ==================== */
.password-strength {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-xs);
}
.strength-bar {
  flex: 1;
  height: 4px;
  background: var(--color-bg-dark);
  border-radius: 2px;
  overflow: hidden;
}
.strength-fill {
  height: 100%;
  border-radius: 2px;
  width: 0%;
  transition: all 0.3s ease;
}
.strength-text {
  font-size: 0.75rem;
  font-weight: 500;
}

/* ==================== 玩法详情模态 ==================== */
.mode-detail-content {
  max-height: 70vh;
  overflow-y: auto;
}
.mode-detail-cover {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
}
.mode-detail-features {
  list-style: none;
  margin: var(--space-lg) 0;
}
.mode-detail-features li {
  padding: var(--space-sm) 0;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
}
.mode-detail-features li::before {
  content: '✓';
  color: var(--color-primary);
  font-weight: 700;
  flex-shrink: 0;
}

/* 活动详情 */
.act-detail-content {
  max-height: 70vh;
  overflow-y: auto;
}
.act-detail-cover {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
}
.act-detail-meta {
  display: flex;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}
.act-detail-meta-item {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}
.act-detail-meta-item svg {
  color: var(--color-primary);
}

/* ==================== 新增响应式 ==================== */

/* ==================== 第四部分：在线玩家列表 ==================== */
.online-players-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-top: var(--space-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid transparent;
  transition: all var(--transition);
}
.online-players-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-border);
}
.online-players-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}
.online-players-header h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  flex: 1;
}
.online-players-count {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}
.online-players-filter {
  display: flex;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}
.online-filter-btn {
  padding: 4px 12px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-full);
  background: var(--color-bg);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
}
.online-filter-btn:hover { color: var(--color-primary); }
.online-filter-btn.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.online-players-list {
  max-height: 240px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}
.online-player-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}
.online-player-item:hover { background: var(--color-primary-light); }
.online-player-name {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-primary);
  cursor: pointer;
  flex: 1;
}
.online-player-name:hover { text-decoration: underline; }
.online-player-mode {
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
  background: var(--color-white);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}
.online-player-duration {
  font-size: 0.78rem;
  color: var(--color-primary);
  font-weight: 500;
}
.online-players-login-hint {
  text-align: center;
  padding: var(--space-lg);
  color: var(--color-text-tertiary);
  font-size: 0.85rem;
}

/* ==================== 公告+日历双栏 ==================== */
.announcements-calendar-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: start;
}

/* ==================== 事件日历 ==================== */
.calendar-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}
.calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-md);
}
.calendar-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
}
.calendar-nav-btn {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: var(--color-bg);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  transition: all var(--transition);
}
.calendar-nav-btn:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
}
.calendar-filter {
  display: flex;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}
.calendar-filter-btn {
  padding: 3px 10px;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-full);
  background: var(--color-bg);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
}
.calendar-filter-btn:hover { color: var(--color-primary); }
.calendar-filter-btn.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.calendar-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--color-text-tertiary);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-xs);
}
.calendar-days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
}
.calendar-day {
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  min-height: 36px;
}
.calendar-day:hover { background: var(--color-bg); }
.calendar-day.other-month { color: var(--color-text-tertiary); opacity: 0.5; }
.calendar-day.today {
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  border-radius: var(--radius-full);
}
.calendar-day.has-event::after {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-primary);
  position: absolute;
  bottom: 3px;
}
.calendar-day.today.has-event::after { background: #fff; }
.calendar-day.has-maintenance::after { background: var(--color-text-tertiary); }
.calendar-day .event-dot-multiple {
  display: flex;
  gap: 2px;
  position: absolute;
  bottom: 3px;
}
.calendar-day .event-dot-multiple span {
  width: 4px;
  height: 4px;
  border-radius: 50%;
}

/* 日历事件详情 */
.cal-event-detail {
  max-height: 60vh;
  overflow-y: auto;
}
.cal-event-item {
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}
.cal-event-item:last-child { border-bottom: none; }
.cal-event-type-badge {
  display: inline-block;
  padding: 2px 8px;
  font-size: 0.7rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-xs);
}
.cal-event-type-badge.activity { background: #E8F0FE; color: var(--color-primary); }
.cal-event-type-badge.maintenance { background: #F0F0F0; color: var(--color-text-tertiary); }
.cal-event-type-badge.special { background: #FFF3E0; color: #E65100; }
.cal-event-type-badge.personal { background: #E8F5E9; color: #2E7D32; }
.cal-event-title { font-size: 0.92rem; font-weight: 600; margin-bottom: 4px; }
.cal-event-time { font-size: 0.8rem; color: var(--color-text-secondary); }
.cal-event-desc { font-size: 0.82rem; color: var(--color-text-secondary); margin-top: var(--space-xs); line-height: 1.6; }
.cal-event-fav-btn {
  margin-top: var(--space-sm);
  font-size: 0.78rem;
  color: var(--color-primary);
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}
.cal-event-fav-btn:hover { text-decoration: underline; }

/* ==================== 礼包兑换 ==================== */
.redeem-input {
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}
#redeemResult {
  margin-bottom: var(--space-md);
  font-size: 0.88rem;
  line-height: 1.6;
}
.redeem-result-item {
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-xs);
  font-size: 0.85rem;
}
.redeem-result-item.success { background: #E8F5E9; color: #2E7D32; }
.redeem-result-item.error { background: #FFEBEE; color: #C62828; }

/* ==================== 签到 ==================== */
.checkin-content {
  text-align: center;
}
.checkin-status {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
}
.checkin-status.checked { color: var(--color-primary); }
.checkin-status.unchecked { color: var(--color-text-tertiary); }
.checkin-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}
.checkin-stat-item {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}
.checkin-stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}
.checkin-stat-label {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}
.checkin-next-reward {
  background: var(--color-primary-light);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin-bottom: var(--space-lg);
  font-size: 0.85rem;
  color: var(--color-primary);
}
.checkin-btn {
  width: 100%;
  padding: 14px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-lg);
  transition: all 0.25s ease;
}
.checkin-btn:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(74,123,247,0.3); }
.checkin-btn:disabled {
  background: var(--color-bg-dark);
  color: var(--color-text-tertiary);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* ==================== 成就展示 ==================== */
.achievement-content {
  max-height: 70vh;
  overflow-y: auto;
}
.achievement-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-md);
}
.achievement-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  position: relative;
  border: 1px solid transparent;
  transition: all var(--transition);
}
.achievement-card.unlocked {
  border-color: var(--color-primary);
  background: var(--color-white);
}
.achievement-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.achievement-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-sm);
  color: var(--color-primary);
  font-size: 1.2rem;
  font-weight: 700;
}
.achievement-card.unlocked .achievement-icon { background: var(--color-primary); color: #fff; }
.achievement-card .achievement-icon.locked {
  background: var(--color-bg-dark);
  color: var(--color-text-tertiary);
}
.achievement-name {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.achievement-desc {
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  line-height: 1.4;
}
.achievement-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 1px 8px;
  font-size: 0.65rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
}
.achievement-badge.rare { background: var(--color-primary); color: #fff; }
.achievement-badge.advanced { background: #FFF3E0; color: #E65100; }
.achievement-badge.normal { background: var(--color-bg-dark); color: var(--color-text-secondary); }
.achievement-unlock-info {
  font-size: 0.72rem;
  color: var(--color-primary);
  margin-top: var(--space-xs);
}
.achievement-condition {
  font-size: 0.72rem;
  color: var(--color-text-tertiary);
  margin-top: var(--space-xs);
}

/* ==================== 作品排名 ==================== */
.ranking-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-lg);
}
.ranking-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  border: 1px solid transparent;
  cursor: pointer;
}
.ranking-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--color-border);
}
.ranking-card-cover {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--color-bg-dark);
  overflow: hidden;
}
.ranking-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.78) contrast(1.03);
  transition: transform 0.4s ease;
}
.ranking-card:hover .ranking-card-cover img { transform: scale(1.04); }
.ranking-card-body {
  padding: var(--space-md) var(--space-lg);
}
.ranking-card-rank {
  display: inline-flex;
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 700;
  align-items: center;
  justify-content: center;
  margin-right: var(--space-sm);
}
.ranking-card-rank.top3 { background: var(--color-primary); color: #fff; }
.ranking-card-title {
  font-size: 0.95rem;
  font-weight: 600;
  display: inline;
}
.ranking-card-meta {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-sm);
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}
.ranking-featured-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 2px 10px;
  font-size: 0.7rem;
  font-weight: 600;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-sm);
}
.ranking-join-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 8px 20px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-primary);
  background: var(--color-primary-light);
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition);
}
.ranking-join-btn:hover {
  background: var(--color-primary);
  color: #fff;
}

/* ==================== 弹幕 ==================== */
.danmaku-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 4px 12px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  background: rgba(0,0,0,0.5);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition);
}
.danmaku-toggle.active { color: var(--color-primary); background: rgba(74,123,247,0.2); }
.danmaku-send-bar {
  display: flex;
  gap: var(--space-xs);
  padding: var(--space-sm);
  background: rgba(0,0,0,0.6);
  border-radius: var(--radius-md);
}
.danmaku-send-bar input {
  flex: 1;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-size: 0.82rem;
  color: #fff;
  outline: none;
}
.danmaku-send-bar input::placeholder { color: rgba(255,255,255,0.4); }
.danmaku-send-bar input:focus { border-color: var(--color-primary); }
.danmaku-send-bar button {
  padding: 6px 16px;
  font-size: 0.82rem;
  font-weight: 500;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.danmaku-settings {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.75rem;
  color: rgba(255,255,255,0.6);
}
.danmaku-settings label { display: flex; align-items: center; gap: 4px; cursor: pointer; }
.danmaku-settings select {
  background: rgba(255,255,255,0.15);
  border: none;
  color: #fff;
  font-size: 0.72rem;
  border-radius: 3px;
  padding: 2px 4px;
}

/* ==================== 视频评论区 ==================== */
.video-comments-section {
  margin-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-lg);
}
.video-comment-item {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
}
.video-comment-item:last-child { border-bottom: none; }
.video-comment-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary);
  flex-shrink: 0;
}
.video-comment-body { flex: 1; }
.video-comment-author { font-size: 0.85rem; font-weight: 600; }
.video-comment-time { font-size: 0.72rem; color: var(--color-text-tertiary); margin-left: var(--space-sm); }
.video-comment-text { font-size: 0.88rem; line-height: 1.6; color: var(--color-text-secondary); margin-top: 4px; }
.video-comment-actions { display: flex; gap: var(--space-md); margin-top: var(--space-xs); }
.video-comment-action {
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 4px;
}
.video-comment-action:hover { color: var(--color-primary); }
.video-comment-input {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}
.video-comment-input input {
  flex: 1;
  padding: 8px 14px;
  font-size: 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  outline: none;
  transition: border-color var(--transition);
}
.video-comment-input input:focus { border-color: var(--color-primary); }
.video-comment-input button {
  padding: 8px 18px;
  font-size: 0.85rem;
  font-weight: 500;
}

/* ==================== 新增响应式 ==================== */
@media (max-width: 768px) {
  .announcements-calendar-grid {
    grid-template-columns: 1fr;
  }
  .calendar-day {
    min-height: 32px;
    font-size: 0.75rem;
  }
  .online-players-list {
    max-height: 180px;
  }
  .achievement-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .ranking-grid {
    grid-template-columns: 1fr;
  }
  .intro-info-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .team-grid {
    gap: var(--space-lg);
  }
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .step-card::after {
    display: none;
  }
  .contact-info-grid {
    grid-template-columns: 1fr;
  }
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  .footer-links-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }
  .feedback-form-grid {
    grid-template-columns: 1fr;
  }
  .unique-modes-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .intro-info-grid {
    grid-template-columns: 1fr;
  }
  .steps-grid {
    grid-template-columns: 1fr;
  }
  .unique-modes-grid {
    grid-template-columns: 1fr;
  }
}