/* Netflix 风格播放器样式 - 优化版 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ========================================
   主样式
   ======================================== */

:root {
    --primary-color: #e50914;
    --bg-dark: #0a0a0a;
    --bg-darker: #141414;
    --card-bg: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #999999;
    --border-color: #333333;
    --hover-shadow: rgba(229, 9, 20, 0.3);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
    color: var(--text-primary);
    overflow-x: hidden;
    min-height: 100vh;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.8) 0%, transparent 100%);
    z-index: 1000;
    padding: 15px 0;
    transition: background 0.3s ease;
}

.navbar.scrolled {
    background: rgba(0,0,0,0.95);
    backdrop-filter: blur(10px);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    gap: 15px;
    flex-wrap: wrap;
}

/* 确保导航栏控件可见 */
.nav-controls {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.nav-brand {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
    white-space: nowrap;
}

.nav-brand i {
    margin-right: 10px;
    font-size: 28px;
}

.nav-controls {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.nav-btn {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 16px;
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
}

.nav-btn:hover {
    background: rgba(255,255,255,0.1);
    transform: scale(1.05);
}

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


/* 连接方式选择器 */
.connection-selector {
    position: relative;
}

#connectionBtn, #connectionBtnTop {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: rgba(255,255,255,0.05);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    min-width: 140px;
}

#connectionBtn:hover, #connectionBtnTop:hover {
    background: rgba(255,255,255,0.1);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

/* 根据连接速度等级设置按钮边框颜色 */
#connectionBtn.connection-fast,
#connectionBtnTop.connection-fast {
    border-color: #4caf50;
    background: rgba(76, 175, 80, 0.1);
}

#connectionBtn.connection-fast:hover,
#connectionBtnTop.connection-fast:hover {
    border-color: #4caf50;
    background: rgba(76, 175, 80, 0.2);
    box-shadow: 0 4px 12px rgba(76, 175, 80, 0.3);
}

#connectionBtn.connection-normal,
#connectionBtnTop.connection-normal {
    border-color: #2196f3;
    background: rgba(33, 150, 243, 0.1);
}

#connectionBtn.connection-normal:hover,
#connectionBtnTop.connection-normal:hover {
    border-color: #2196f3;
    background: rgba(33, 150, 243, 0.2);
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.3);
}

#connectionBtn.connection-slow,
#connectionBtnTop.connection-slow {
    border-color: #ffc107;
    background: rgba(255, 193, 7, 0.1);
}

#connectionBtn.connection-slow:hover,
#connectionBtnTop.connection-slow:hover {
    border-color: #ffc107;
    background: rgba(255, 193, 7, 0.2);
    box-shadow: 0 4px 12px rgba(255, 193, 7, 0.3);
}

#connection-label, #connection-label-top {
    font-weight: 500;
}

#connectionBtn .fas.fa-chevron-down,
#connectionBtnTop .fas.fa-chevron-down {
    font-size: 12px;
    opacity: 0.7;
    transition: transform 0.3s ease;
}

#connectionBtn:hover .fas.fa-chevron-down,
#connectionBtnTop:hover .fas.fa-chevron-down {
    transform: translateY(2px);
}

.connection-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 0;
    min-width: 240px;
    max-width: 280px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.5);
    z-index: 1002;
    animation: slideDown 0.2s ease;
    /* 确保菜单不会超出视窗或遮挡内容 */
    max-height: calc(100vh - 150px);
    overflow-y: auto;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.connection-item {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 12px 16px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 14px;
    border-left: 3px solid transparent;
    position: relative;
}

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

.connection-item.active {
    background: rgba(229, 9, 20, 0.15);
    font-weight: 500;
}

/* 根据速度等级设置左侧边框颜色 */
.connection-item.connection-fast {
    border-left-color: #4caf50;
}

.connection-item.connection-fast:hover {
    background: rgba(76, 175, 80, 0.1);
}

.connection-item.connection-fast.active {
    background: rgba(76, 175, 80, 0.2);
    border-left-color: #4caf50;
}

.connection-item.connection-normal {
    border-left-color: #2196f3;
}

.connection-item.connection-normal:hover {
    background: rgba(33, 150, 243, 0.1);
}

.connection-item.connection-normal.active {
    background: rgba(33, 150, 243, 0.2);
    border-left-color: #2196f3;
}

.connection-item.connection-slow {
    border-left-color: #ffc107;
}

.connection-item.connection-slow:hover {
    background: rgba(255, 193, 7, 0.1);
}

.connection-item.connection-slow.active {
    background: rgba(255, 193, 7, 0.2);
    border-left-color: #ffc107;
}

.connection-item-header {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
}

.connection-item i:first-child {
    width: 20px;
    text-align: center;
    font-size: 16px;
}

.connection-item-name {
    flex: 1;
    font-weight: 500;
}

.connection-item.active .connection-item-name {
    color: var(--primary-color);
}

.connection-item.active i:last-child {
    color: var(--primary-color);
    margin-left: auto;
    font-size: 14px;
}

.connection-item-tip {
    font-size: 12px;
    opacity: 0.7;
    padding-left: 30px;
    line-height: 1.4;
    color: var(--text-secondary);
}

/* 主容器 */
.main-container {
    margin-top: 120px;
    min-height: calc(100vh - 120px);
}

/* 文件浏览器 */
.file-browser {
    padding: 20px;
    max-width: 1400px;
    margin: 0 auto;
}

.breadcrumb {
    margin-bottom: 20px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
}

.breadcrumb-item {
    display: inline-block;
    color: var(--text-secondary);
    cursor: pointer;
    margin-right: 8px;
    transition: all 0.3s ease;
    padding: 4px 8px;
    border-radius: 4px;
}

.breadcrumb-item:hover {
    color: var(--primary-color);
    background: rgba(255,255,255,0.05);
}

.breadcrumb-item.active {
    color: var(--text-primary);
    font-weight: 500;
}

/* 首页特殊样式 - 更大更醒目 */
.breadcrumb-home {
    font-size: 18px !important;
    font-weight: 600 !important;
    color: var(--primary-color) !important;
    padding: 10px 16px !important;
    background: rgba(229, 9, 20, 0.15) !important;
    border-radius: 8px !important;
    margin-right: 12px !important;
    border: 1px solid rgba(229, 9, 20, 0.3) !important;
    display: inline-flex !important;
    align-items: center !important;
    gap: 8px !important;
}

.breadcrumb-home i {
    font-size: 20px !important;
    color: var(--primary-color) !important;
}

.breadcrumb-home span {
    font-weight: 600 !important;
}

.breadcrumb-home:hover {
    background: rgba(229, 9, 20, 0.25) !important;
    border-color: var(--primary-color) !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(229, 9, 20, 0.3);
}

.loading {
    text-align: center;
    padding: 60px 20px;
    font-size: 18px;
    color: var(--text-secondary);
}

.loading i {
    font-size: 32px;
    margin-right: 12px;
    color: var(--primary-color);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 80px 20px;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 64px;
    margin-bottom: 20px;
    opacity: 0.5;
}

.empty-state p {
    font-size: 16px;
}

/* 文件网格 */
.file-grid {
    animation: fadeIn 0.3s ease;
}

/* 列表视图 */
.file-grid.list-view {
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 0;
}

/* 卡片视图 */
.file-grid.grid-view {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 24px;
    padding: 20px 0;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 列表视图 - 文件项 */
.file-grid.list-view .file-item {
    background: var(--card-bg);
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    border: 1px solid rgba(255,255,255,0.05);
    display: flex;
    flex-direction: row;
    align-items: center;
    padding: 12px 16px;
    margin-bottom: 8px;
    gap: 16px;
}

.file-grid.list-view .file-item:hover {
    background: rgba(255,255,255,0.05);
    border-color: rgba(255,255,255,0.1);
    transform: translateX(4px);
}

/* 卡片视图 - 文件项 */
.file-grid.grid-view .file-item {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    border: 1px solid rgba(255,255,255,0.08);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.file-grid.grid-view .file-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0,0,0,0.4), 0 0 0 1px rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.15);
}

/* 列表视图 - 缩略图 */
.file-grid.list-view .file-thumbnail {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: var(--bg-darker);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--text-secondary);
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
    border-radius: 6px;
}

/* 卡片视图 - 缩略图 */
.file-grid.grid-view .file-thumbnail {
    width: 100%;
    height: 160px;
    background: var(--bg-darker);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 64px;
    color: var(--text-secondary);
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
}

.file-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 视频缩略图加载状态 */
.file-thumbnail.thumbnail-loading {
    position: relative;
}

.file-thumbnail.thumbnail-loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse 1.5s ease-in-out infinite;
}

.file-thumbnail.thumbnail-loading i {
    position: relative;
    z-index: 1;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.3;
    }
    50% {
        opacity: 0.6;
    }
}

.file-thumbnail.video {
    background: linear-gradient(135deg, #e50914 0%, #b20710 100%);
    color: var(--text-primary);
    position: relative;
}

.file-thumbnail.video[style*="background-image"] {
    background: var(--bg-darker);
}

.file-thumbnail.video[style*="background-image"] i {
    display: none !important;
}

.file-thumbnail.audio {
    background: linear-gradient(135deg, #1db954 0%, #1ed760 100%);
    color: var(--text-primary);
}

.file-thumbnail.image {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a52 100%);
    color: var(--text-primary);
}

.file-thumbnail.folder {
    background: linear-gradient(135deg, #4a90e2 0%, #357abd 100%);
    color: var(--text-primary);
}

/* 列表视图 - 文件信息 */
.file-grid.list-view .file-info {
    flex: 1;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-width: 0;
}

.file-grid.list-view .file-name {
    font-weight: 500;
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    min-width: 0;
}

.file-grid.list-view .file-meta {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 12px;
    font-size: 12px;
    color: var(--text-secondary);
    flex-shrink: 0;
}

.file-grid.list-view .file-time {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    text-align: right;
    min-width: 160px;
    justify-content: flex-end;
}

/* 卡片视图 - 文件信息 */
.file-grid.grid-view .file-info {
    padding: 16px;
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.file-grid.grid-view .file-name {
    font-weight: 500;
    margin-bottom: 10px;
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    word-break: break-word;
    min-height: 42px;
}

.file-grid.grid-view .file-meta {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-top: auto;
    padding-top: 8px;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.file-grid.grid-view .file-size,
.file-grid.grid-view .file-time {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
}

.file-size i, .file-time i {
    font-size: 11px;
    opacity: 0.6;
    width: 12px;
    text-align: center;
}

/* 列表视图 - 播放覆盖层 */
.file-grid.list-view .play-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(229,9,20,0.95);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.2s ease;
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(229,9,20,0.5);
}

.file-grid.list-view .file-item:hover .play-overlay {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.1);
}

.file-grid.list-view .play-overlay i {
    color: var(--text-primary);
    font-size: 14px;
    margin-left: 2px;
}

/* 卡片视图 - 播放覆盖层 */
.file-grid.grid-view .play-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(229,9,20,0.95);
    border-radius: 50%;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(229,9,20,0.5);
}

.file-grid.grid-view .file-item:hover .play-overlay {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.15);
}

.file-grid.grid-view .play-overlay i {
    color: var(--text-primary);
    font-size: 26px;
    margin-left: 3px;
}

/* 视频播放器 - 全屏覆盖层 */
.video-player-container {
    position: fixed !important;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100% !important;
    height: 100vh !important;
    background: #000;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

.video-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding-bottom: 0;
    box-sizing: border-box;
}

#videoPlayer {
    max-width: 100%;
    max-height: 100vh;
    width: auto;
    height: auto;
    background: #000;
    object-fit: contain;
    transition: transform 0.3s ease;
    border-radius: 4px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.6);
}

/* 全屏模式下的样式 */
.video-player-container.fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    padding: 0;
}

.video-player-container.fullscreen #videoPlayer {
    max-height: 100vh;
}

#videoPlayer.rotated-90 {
    transform: rotate(90deg);
}

#videoPlayer.rotated-180 {
    transform: rotate(180deg);
}

#videoPlayer.rotated-270 {
    transform: rotate(270deg);
}

/* 隐藏的控制栏（已移到快捷键窗口） */
.video-info {
    display: none !important;
}

.video-info.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.video-player-container:hover .video-info.visible,
.video-player-container .video-info.show-controls {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

#videoTitle {
    margin-bottom: 12px; /* 减少标题下边距 */
    font-size: 22px; /* 稍微减小字体 */
    font-weight: 600;
    color: var(--text-primary);
    text-shadow: 0 2px 8px rgba(0,0,0,0.5);
    letter-spacing: 0.3px;
}

.video-controls {
    display: flex;
    gap: 20px;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

.control-group {
    display: flex;
    gap: 12px;
    align-items: center;
}

.speed-control {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255,255,255,0.12);
    padding: 10px 14px;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.speed-control:hover {
    background: rgba(255,255,255,0.15);
    border-color: rgba(255,255,255,0.2);
}

.speed-control label {
    font-size: 14px;
    color: var(--text-primary);
    white-space: nowrap;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
}

.speed-control label i {
    font-size: 13px;
    opacity: 0.8;
}

.speed-control select {
    background: rgba(0,0,0,0.6);
    border: 1px solid rgba(255,255,255,0.2);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    outline: none;
    transition: all 0.3s ease;
    font-weight: 500;
    min-width: 70px;
}

.speed-control select:hover {
    border-color: var(--primary-color);
    background: rgba(0,0,0,0.8);
    box-shadow: 0 0 0 2px rgba(229,9,20,0.2);
}

.speed-control select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(229,9,20,0.3);
}

.control-btn-icon {
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--text-primary);
    padding: 10px 14px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    backdrop-filter: blur(10px);
}

.control-btn-icon:hover {
    background: rgba(255,255,255,0.2);
    border-color: rgba(255,255,255,0.3);
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

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

/* 快捷键提示窗口（合并控制栏） */
.video-shortcuts {
    position: fixed;
    top: 20px;
    right: 20px;
    background: rgba(0,0,0,0.9);
    color: white;
    padding: 20px;
    border-radius: 12px;
    font-size: 13px;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 2002;
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255,255,255,0.15);
    min-width: 260px;
    max-width: 320px;
    pointer-events: auto;
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}

/* 移除 hover 显示，改为通过 JavaScript 控制 */

/* 标题区域 */
.video-shortcuts .shortcuts-header {
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255,255,255,0.15);
}

.video-shortcuts .shortcuts-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    text-shadow: 0 2px 8px rgba(0,0,0,0.5);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 快捷键区域 */
.video-shortcuts .shortcuts-section {
    margin-bottom: 16px;
}

.video-shortcuts .shortcuts-section:last-child {
    margin-bottom: 0;
}

.video-shortcuts .shortcuts-section div {
    margin-bottom: 6px;
    white-space: nowrap;
    line-height: 1.6;
}

.video-shortcuts .shortcuts-section div:last-child {
    margin-bottom: 0;
}

.video-shortcuts .shortcuts-section strong {
    color: var(--primary-color);
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
}

/* 控制按钮区域 */
.video-shortcuts .shortcuts-controls {
    padding-top: 12px;
    border-top: 1px solid rgba(255,255,255,0.15);
}

.video-shortcuts .shortcuts-controls .control-group {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 10px;
}

.video-shortcuts .shortcuts-controls .control-group:last-child {
    margin-bottom: 0;
}

.video-shortcuts .shortcuts-controls .speed-control {
    flex: 1;
    min-width: 140px;
}

.video-shortcuts .shortcuts-controls .control-btn {
    padding: 8px 12px;
    font-size: 13px;
    min-width: auto;
    /* 触摸设备优化 */
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    min-height: 44px; /* iOS 推荐的最小触摸目标 */
}

.video-shortcuts .shortcuts-controls .control-btn-icon {
    width: 36px;
    height: 36px;
    padding: 8px;
    font-size: 14px;
    /* 触摸设备优化 */
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    min-height: 44px; /* iOS 推荐的最小触摸目标 */
    min-width: 44px;
}


/* 控制按钮 */
.control-btn {
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--text-primary);
    padding: 12px 24px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.control-btn:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(229,9,20,0.5);
}

.control-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(229,9,20,0.4);
}

.control-btn i {
    font-size: 14px;
}

/* 错误提示 */
.error-message {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.85);
    z-index: 3000;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
}

.error-content {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 12px;
    text-align: center;
    max-width: 400px;
    border: 1px solid rgba(255,255,255,0.1);
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}

.error-content i {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.error-content #errorText {
    display: block;
    margin-bottom: 20px;
    font-size: 14px;
    color: var(--text-primary);
    line-height: 1.6;
    text-align: left;
    white-space: normal;
}

.error-content button {
    background: var(--primary-color);
    border: none;
    color: var(--text-primary);
    padding: 12px 24px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.error-content button:hover {
    background: #b20710;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(229,9,20,0.4);
}

/* 格式不支持模态对话框 */
.format-unsupported-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 5000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.format-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
}

.format-modal-content {
    position: relative;
    background: var(--card-bg);
    border-radius: 16px;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: slideUp 0.3s ease;
    display: flex;
    flex-direction: column;
}

.format-modal-header {
    padding: 24px 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: 12px;
}

.format-modal-header i {
    font-size: 28px;
    color: #ffa500;
}

.format-modal-header h2 {
    margin: 0;
    font-size: 22px;
    color: var(--text-primary);
    font-weight: 600;
}

.format-modal-body {
    padding: 24px 30px;
    flex: 1;
    overflow-y: auto;
}

.format-info {
    margin-bottom: 24px;
}

.format-file-info {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    border-left: 3px solid #ffa500;
}

.format-file-info i {
    font-size: 24px;
    color: #ffa500;
}

.format-file-info span:first-of-type {
    flex: 1;
    font-weight: 500;
    color: var(--text-primary);
    word-break: break-all;
}

.format-badge {
    background: rgba(255, 165, 0, 0.2);
    color: #ffa500;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.format-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.detail-section {
    padding: 16px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
}

.detail-section h3 {
    margin: 0 0 12px 0;
    font-size: 16px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.detail-section h3 i {
    color: var(--primary-color);
}

.detail-section p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 14px;
}

.solution-item {
    display: flex;
    gap: 12px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    margin-bottom: 12px;
    border-left: 3px solid var(--primary-color);
}

.solution-item:last-child {
    margin-bottom: 0;
}

.solution-item i {
    font-size: 20px;
    color: var(--primary-color);
    margin-top: 2px;
}

.solution-item > div {
    flex: 1;
}

.solution-item strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 6px;
    font-size: 14px;
}

.solution-item p {
    margin: 0 0 8px 0;
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.5;
}

.solution-item code {
    display: block;
    background: rgba(0, 0, 0, 0.3);
    padding: 8px 12px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 12px;
    color: #4caf50;
    overflow-x: auto;
    margin-top: 6px;
}

.format-support-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.format-support-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 14px;
    transition: background 0.2s ease;
}

.format-support-list li.supported {
    background: rgba(76, 175, 80, 0.1);
    color: #4caf50;
}

.format-support-list li.partial {
    background: rgba(255, 165, 0, 0.1);
    color: #ffa500;
}

.format-support-list li.unsupported {
    background: rgba(244, 67, 54, 0.1);
    color: #f44336;
}

.format-support-list li i {
    font-size: 14px;
}

.format-modal-footer {
    padding: 20px 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

.format-modal-footer button {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-primary {
    background: var(--primary-color);
    color: var(--text-primary);
}

.btn-primary:hover {
    background: #b20710;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(229, 9, 20, 0.4);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .nav-container {
        padding: 0 15px;
    }

    .filter-group {
        order: -1;
        width: 100%;
        margin-top: 10px;
    }

    .nav-controls {
        flex-direction: column;
        width: 100%;
        align-items: stretch;
    }
}

@media (max-width: 768px) {
    .nav-brand {
        font-size: 20px;
    }

    .nav-brand i {
        font-size: 24px;
    }

    .file-grid.list-view .file-item {
        padding: 10px 12px;
        gap: 12px;
    }

    .file-grid.grid-view {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 16px;
    }

    .file-browser {
        padding: 15px;
    }

    .file-grid.list-view .file-thumbnail {
        width: 40px;
        height: 40px;
        min-width: 40px;
        font-size: 20px;
    }

    .file-grid.grid-view .file-thumbnail {
        height: 140px;
        font-size: 56px;
    }

    .file-grid.list-view .file-info {
        gap: 12px;
    }

    .file-grid.list-view .file-name {
        font-size: 13px;
    }

    .file-grid.list-view .file-time {
        min-width: 140px;
        font-size: 11px;
    }

    .file-grid.grid-view .file-name {
        font-size: 13px;
        min-height: 39px;
    }

    .video-wrapper {
        padding-bottom: 100px; /* 移动端减少底部空间 */
    }

    #videoPlayer {
        max-height: calc(100% - 100px);
    }

    .video-info {
        padding: 20px;
        min-height: 100px;
    }

    #videoTitle {
        font-size: 20px;
        margin-bottom: 16px;
    }

    .video-controls {
        gap: 12px;
        flex-direction: column;
        align-items: stretch;
    }

    .control-group {
        gap: 8px;
        justify-content: center;
    }

    .speed-control {
        padding: 8px 12px;
    }

    .speed-control label {
        font-size: 12px;
    }

    .speed-control select {
        padding: 6px 10px;
        font-size: 12px;
        min-width: 60px;
    }

    .control-btn-icon {
        width: 40px;
        height: 40px;
        padding: 8px;
        font-size: 14px;
    }

    .control-btn {
        padding: 10px 18px;
        font-size: 12px;
    }

    .video-shortcuts {
        top: 10px;
        right: 10px;
        padding: 12px;
        font-size: 11px;
        min-width: 150px;
    }

    .audio-wrapper {
        padding: 20px;
    }

    #audioTitle {
        font-size: 24px;
    }

    .audio-cover {
        width: 150px;
        height: 150px;
        font-size: 60px;
    }
}

@media (max-width: 480px) {
    .file-grid.list-view .file-item {
        padding: 8px 10px;
        gap: 10px;
        margin-bottom: 6px;
    }

    .file-grid.grid-view {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 12px;
    }
    
    .file-grid.list-view .file-thumbnail {
        width: 36px;
        height: 36px;
        min-width: 36px;
        font-size: 18px;
    }

    .file-grid.grid-view .file-thumbnail {
        height: 120px;
        font-size: 48px;
    }

    .file-grid.list-view .file-info {
        gap: 8px;
    }

    .file-grid.list-view .file-name {
        font-size: 12px;
    }

    .file-grid.list-view .file-meta {
        gap: 8px;
    }

    .file-grid.list-view .file-time {
        min-width: 120px;
        font-size: 10px;
    }

    .file-grid.grid-view .file-name {
        font-size: 12px;
        min-height: 36px;
    }
    
    .play-overlay {
        width: 40px;
        height: 40px;
    }
    
    .play-overlay i {
        font-size: 16px;
    }

    .filter-btn {
        font-size: 11px;
        padding: 5px 8px;
    }

    .filter-btn i {
        font-size: 12px;
    }

    .nav-btn {
        font-size: 14px;
        padding: 6px 10px;
        min-width: 36px;
    }
}