/* =============================================
   移动端响应式样式
   ============================================= */

/* 手机端导航栏 */
@media (max-width: 991px) {
  .navbar {
    padding: 0.5rem 0;
  }

  .navbar-collapse {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 1rem;
    margin-top: 0.5rem;
    border: 1px solid var(--border-color);
  }

  .navbar-nav {
    gap: 0.25rem;
  }

  .nav-link {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
  }

  .search-box {
    margin: 0.75rem 0;
  }

  .search-box .input-group {
    width: 100%;
  }

  .nav-login-btn {
    width: 100%;
    justify-content: center;
    margin-top: 0.5rem;
  }
}

/* 手机端轮播图 */
@media (max-width: 768px) {
  .hero-section {
    padding-top: 0.5rem;
  }

  .carousel-image {
    height: 200px;
  }

  .carousel-overlay {
    padding: 1rem;
  }

  .carousel-title {
    font-size: 1.1rem;
  }

  .carousel-item .btn {
    padding: 0.4rem 1rem;
    font-size: 0.8rem;
  }

  .carousel-control-prev,
  .carousel-control-next {
    width: 35px;
    height: 35px;
  }

  .carousel-indicators button {
    width: 8px;
    height: 8px;
  }
}

/* 手机端视频卡片 */
@media (max-width: 576px) {
  .video-card .card-body {
    padding: 0.5rem;
  }

  .video-card .card-title {
    font-size: 0.75rem;
  }

  .video-card .card-text {
    font-size: 0.65rem;
    display: none;
  }

  .video-card .badge {
    font-size: 0.6rem;
    padding: 0.2em 0.4em;
  }
}

/* 手机端筛选菜单 */
@media (max-width: 768px) {
  .filter-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.75rem;
  }

  .filter-tags {
    width: 100%;
  }

  .filter-tag {
    padding: 0.4rem 0.75rem;
    font-size: 0.8rem;
  }
}

/* 手机端详情页 */
@media (max-width: 768px) {
  .detail-cover {
    max-width: 200px;
    margin: 0 auto 1rem;
  }

  .source-tabs-detail {
    gap: 0.35rem;
  }

  .source-tab-detail {
    padding: 0.4rem 0.75rem;
    font-size: 0.8rem;
  }

  .episodes-grid {
    grid-template-columns: repeat(auto-fill, minmax(65px, 1fr));
    gap: 0.35rem;
  }
}

/* 手机端播放页 */
@media (max-width: 768px) {
  .player-navbar-content {
    gap: 0.5rem;
  }

  .player-nav-btn {
    padding: 0.35rem 0.5rem;
    font-size: 0.75rem;
  }

  .player-nav-btn span {
    display: none;
  }

  .player-title {
    display: none;
  }

  .site-name-sm {
    display: none;
  }

  .source-tabs {
    gap: 0.35rem;
  }

  .source-tab {
    padding: 0.4rem 0.75rem;
    font-size: 0.8rem;
  }

  .episodes-grid {
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    gap: 0.35rem;
  }

  .episode-btn {
    padding: 0.4rem;
    font-size: 0.75rem;
  }
}

/* 手机端用户中心 */
@media (max-width: 768px) {
  .user-profile-card {
    flex-direction: column;
    text-align: center;
    padding: 1.5rem;
  }

  .user-avatar {
    margin-bottom: 1rem;
  }

  .stat-card {
    padding: 1rem;
  }

  .stat-icon {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }

  .stat-info h4 {
    font-size: 1.25rem;
  }

  .user-menu-item {
    padding: 0.75rem 1rem;
  }

  .menu-icon {
    width: 36px;
    height: 36px;
    font-size: 0.9rem;
  }
}

/* 手机端收藏/历史列表 */
@media (max-width: 768px) {
  .favorite-item,
  .history-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 0.75rem;
  }

  .favorite-meta,
  .history-meta {
    width: 100%;
    justify-content: space-between;
  }
}

/* 手机端登录/注册页 */
@media (max-width: 576px) {
  .auth-card {
    padding: 1.5rem;
  }

  .logo-circle {
    width: 60px;
    height: 60px;
    border-radius: 16px;
  }

  .logo-bar {
    width: 3px;
    height: 18px;
  }

  .logo-bar:nth-child(2) {
    height: 24px;
  }

  .auth-title {
    font-size: 1.25rem;
  }

  .input-group-text {
    padding: 0.6rem 0.75rem;
  }

  .form-control {
    padding: 0.6rem 0.75rem;
    font-size: 0.9rem;
  }
}

/* 手机端管理后台 */
@media (max-width: 768px) {
  .admin-sidebar {
    position: fixed;
    left: -280px;
    width: 280px;
    z-index: 1000;
    transition: left 0.3s ease;
    box-shadow: var(--shadow-xl);
  }

  .admin-sidebar.show {
    left: 0;
  }

  .admin-content {
    padding: 1rem;
  }

  .admin-stat-card {
    padding: 1rem;
  }

  .admin-stat-card h3 {
    font-size: 1.5rem;
  }

  .admin-table {
    overflow-x: auto;
  }

  .admin-table table {
    min-width: 600px;
  }
}

/* 手机端空状态 */
@media (max-width: 576px) {
  .empty-state {
    padding: 2rem 1rem;
  }

  .empty-icon {
    width: 64px;
    height: 64px;
    font-size: 1.5rem;
  }

  .empty-state h4 {
    font-size: 1.1rem;
  }

  .btn-empty-action {
    padding: 0.5rem 1.25rem;
    font-size: 0.85rem;
  }
}

/* 手机端分页 */
@media (max-width: 576px) {
  .pagination {
    gap: 0.25rem;
  }

  .page-link {
    padding: 0.4rem 0.6rem;
    font-size: 0.8rem;
  }
}

/* 手机端面包屑 */
@media (max-width: 576px) {
  .breadcrumb {
    font-size: 0.8rem;
  }

  .breadcrumb-item + .breadcrumb-item::before {
    padding-right: 0.5rem;
  }
}

/* 手机端页脚 */
@media (max-width: 768px) {
  footer {
    padding: 2rem 0 1.5rem;
    text-align: center;
  }

  footer .row > div {
    margin-bottom: 1.5rem;
  }

  footer h5 {
    font-size: 0.9rem;
  }

  footer ul {
    padding: 0;
  }

  footer li {
    margin-bottom: 0.5rem;
  }
}

/* 手机端官方源提示 */
@media (max-width: 768px) {
  .official-source-warning {
    padding: 0.75rem;
  }

  .warning-content {
    padding: 1rem;
  }

  .warning-content i {
    font-size: 2rem !important;
    margin-bottom: 0.75rem !important;
  }

  .warning-content h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
  }

  .warning-content p {
    font-size: 0.75rem;
    line-height: 1.5;
    margin-bottom: 0.5rem;
  }

  .official-tip {
    padding: 0.4rem 0.6rem;
    font-size: 0.7rem;
  }
}

/* 手机端隐藏轮播图按钮 */
@media (max-width: 768px) {
  .carousel-item .btn {
    display: none;
  }
}

/* 触摸设备优化 */
@media (hover: none) {
  .video-card:hover {
    transform: none;
    box-shadow: none;
  }

  .video-card:active {
    transform: scale(0.98);
  }

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

  .stat-card:hover {
    transform: none;
  }

  .stat-card:active {
    transform: scale(0.98);
  }
}

/* 安全区域适配（刘海屏） */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
  footer {
    padding-bottom: calc(1.5rem + env(safe-area-inset-bottom));
  }

  .player-navbar {
    padding-top: env(safe-area-inset-top);
  }
}

/* 暗色模式下拉菜单 */
@media (prefers-color-scheme: dark) {
  .dropdown-menu {
    background: var(--bg-secondary);
    border-color: var(--border-color);
  }

  .dropdown-item {
    color: var(--text-secondary);
  }

  .dropdown-item:hover {
    background: rgba(99, 102, 241, 0.1);
    color: var(--text-primary);
  }
}