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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #f0f2f5;
    color: #333;
    line-height: 1.6;
    min-height: 100vh;
}

/* 顶部导航栏 */
.header {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    display: flex;
    align-items: center;
    padding: 0 2rem;
    height: 60px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    color: #fff;
    font-size: 1.5rem;
    font-weight: bold;
    margin-right: 3rem;
}

.nav {
    display: flex;
    gap: 0.5rem;
}

.nav-item {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-item:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

.nav-item.active {
    color: #fff;
    background: rgba(255, 255, 255, 0.2);
}

/* 主内容区 */
.main-content {
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    color: #1a1a2e;
    font-size: 1.75rem;
}

/* 上传页面 */
.upload-container {
    background: #fff;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.upload-area {
    border: 2px dashed #d9d9d9;
    border-radius: 12px;
    padding: 3rem;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-area:hover,
.upload-area.dragover {
    border-color: #1890ff;
    background: rgba(24, 144, 255, 0.05);
}

.upload-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.upload-area p {
    color: #666;
    margin-bottom: 1rem;
}

/* 按钮 */
.btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.btn-primary {
    background: #1890ff;
    color: #fff;
}

.btn-primary:hover {
    background: #40a9ff;
}

.btn-sm {
    padding: 0.25rem 0.75rem;
    font-size: 0.8rem;
}

.btn-danger {
    background: #ff4d4f;
    color: #fff;
}

.btn-danger:hover {
    background: #ff7875;
}

/* 进度条 */
.upload-progress {
    margin-top: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.progress-bar {
    flex: 1;
    height: 8px;
    background: #f0f0f0;
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #1890ff, #40a9ff);
    width: 0%;
    transition: width 0.3s ease;
}

.progress-text {
    color: #666;
    font-size: 0.9rem;
    min-width: 40px;
}

/* 消息提示 */
.upload-result {
    margin-top: 1rem;
}

.success-message {
    padding: 0.75rem 1rem;
    background: #f6ffed;
    border: 1px solid #b7eb8f;
    border-radius: 6px;
    color: #52c41a;
}

.error-message {
    padding: 0.75rem 1rem;
    background: #fff2f0;
    border: 1px solid #ffccc7;
    border-radius: 6px;
    color: #ff4d4f;
}

/* 节目列表 */
.programs-container {
    background: #fff;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.programs-table {
    width: 100%;
    border-collapse: collapse;
}

.programs-table th,
.programs-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #f0f0f0;
}

.programs-table th {
    background: #fafafa;
    font-weight: 600;
    color: #666;
}

.programs-table tr:hover {
    background: #fafafa;
}

/* 状态标签 */
.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.status-播放中 {
    background: #e6f7ff;
    color: #1890ff;
}

.status-待播放 {
    background: #fff7e6;
    color: #fa8c16;
}

.status-已结束 {
    background: #f5f5f5;
    color: #8c8c8c;
}

/* 警告消息 */
.warning-message {
    padding: 0.75rem 1rem;
    background: #fffbe6;
    border: 1px solid #ffe58f;
    border-radius: 6px;
    color: #d48806;
}

/* 弹窗 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background: #fff;
    padding: 2rem;
    border-radius: 12px;
    min-width: 300px;
    max-width: 400px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.modal-content h3 {
    margin-bottom: 0.5rem;
    color: #1a1a2e;
}

.modal-content p {
    color: #666;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    word-break: break-all;
}

.modal-content input[type="password"] {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #d9d9d9;
    border-radius: 6px;
    font-size: 1rem;
    margin-bottom: 1rem;
}

.modal-content input[type="password"]:focus {
    outline: none;
    border-color: #1890ff;
}

.modal-buttons {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
}

.modal-buttons .btn {
    background: #f0f0f0;
    color: #333;
}

.modal-buttons .btn:hover {
    background: #e0e0e0;
}

/* 视频弹窗 */
.video-modal {
    max-width: 900px;
    width: 90%;
    padding: 0;
    background: #000;
}

.video-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: #1a1a2e;
}

.video-header h3 {
    color: #fff;
    margin: 0;
    font-size: 1rem;
}

.btn-close {
    background: transparent;
    border: none;
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.btn-close:hover {
    color: #ff4d4f;
}

#videoPlayer {
    width: 100%;
    max-height: 70vh;
    display: block;
}

/* 空状态 */
.empty-message {
    text-align: center;
    padding: 3rem;
    color: #999;
}

/* 按钮主色调 */
.btn-primary {
    background: #1890ff;
    color: #fff;
}

.btn-primary:hover {
    background: #40a9ff;
}

/* 移动端适配 */
.mobile-only {
    display: none !important;
}

.desktop-only {
    display: table !important;
}

/* 手机端节目列表 */
.programs-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.program-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    background: #fafafa;
    border-radius: 8px;
}

.program-info {
    flex: 1;
    min-width: 0;
    margin-right: 0.75rem;
}

.program-name {
    font-weight: 500;
    color: #333;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.program-size {
    font-size: 0.8rem;
    color: #999;
    margin-top: 0.25rem;
}

@media screen and (max-width: 768px) {
    .mobile-only {
        display: block !important;
    }

    .desktop-only {
        display: none !important;
    }

    .header {
        padding: 0 1rem;
        height: 56px;
    }

    .logo {
        font-size: 1.2rem;
        margin-right: 1rem;
    }

    .nav-item {
        padding: 0.5rem 0.75rem;
        font-size: 0.9rem;
    }

    .main-content {
        padding: 1rem;
    }

    .page-header {
        margin-bottom: 1rem;
    }

    .page-header h1 {
        font-size: 1.35rem;
    }

    .upload-container {
        padding: 1rem;
        border-radius: 8px;
    }

    .upload-area {
        padding: 1.5rem 1rem;
        border-radius: 8px;
    }

    .upload-icon {
        font-size: 2.5rem;
    }

    .upload-area p {
        font-size: 0.9rem;
    }

    .programs-container {
        padding: 0.75rem;
        border-radius: 8px;
    }

    .video-modal {
        width: 100%;
        max-width: 100%;
        height: 100%;
        max-height: 100%;
        border-radius: 0;
    }

    .video-header {
        padding: 0.75rem 1rem;
    }

    .video-header h3 {
        font-size: 0.9rem;
    }

    #videoPlayer {
        max-height: calc(100vh - 50px);
    }

    .success-message,
    .error-message,
    .warning-message {
        padding: 0.5rem 0.75rem;
        font-size: 0.85rem;
    }

    .btn {
        padding: 0.4rem 0.75rem;
        font-size: 0.85rem;
    }

    .btn-sm {
        padding: 0.2rem 0.5rem;
        font-size: 0.75rem;
    }
}

@media screen and (max-width: 480px) {
    .logo {
        font-size: 1rem;
    }

    .nav-item {
        padding: 0.4rem 0.5rem;
        font-size: 0.8rem;
    }

    .upload-area {
        padding: 1rem 0.5rem;
    }

    .upload-icon {
        font-size: 2rem;
    }
}

/* 播放器展开样式 */
.video-row {
    cursor: pointer;
    transition: background 0.2s;
}

.video-row:hover {
    background: #f5f5f5;
}

.play-hint {
    color: #1890ff;
    font-size: 0.85rem;
}

/* PC端下拉播放器 */
.player-row {
    display: none;
}

.player-row.active {
    display: table-row;
}

.player-row.active td {
    padding: 0;
    border-bottom: 1px solid #e0e0e0;
}

.player-wrapper {
    padding: 1rem;
    background: transparent;
}

.player-wrapper .video-js {
    width: 480px;
    max-width: 100%;
    height: 270px;
    margin: 0 auto;
    background: #000;
}

/* 手机端播放器样式 */
.program-item-wrapper {
    border-radius: 8px;
    overflow: hidden;
    background: #fafafa;
}

.program-item-wrapper .program-item {
    border-radius: 0;
}

.player-row-mobile {
    display: none;
    background: #000;
}

.player-row-mobile.active {
    display: block;
}

.player-row-mobile .video-js {
    width: 100%;
    height: 250px;
}

/* Video.js 大播放按钮样式 */
.video-js .vjs-big-play-button {
    font-size: 3em;
    line-height: 1.5em;
    height: 1.5em;
    width: 2em;
    border: 0.06666em solid #fff;
    border-radius: 0.3em;
    left: 50%;
    top: 50%;
    margin-left: -1em;
    margin-top: -0.75em;
}

.video-js:hover .vjs-big-play-button {
    background-color: rgba(43, 51, 63, 0.9);
}

/* 禁用移动端自动全屏 */
.video-js video {
    -webkit-transform: translateZ(0);
    -webkit-playsinline: true;
    playsinline: true;
}

.player-row-mobile .video-js video::-webkit-media-controls {
    display: none !important;
}

/* 移除旧的弹窗样式 */
.video-modal,
.video-header
#videoPlayer {
    /* 保留兼容性但不再使用 */
}

/* HIT运动页面样式 */
.hit-container {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    padding: 1.5rem;
}

.settings-group {
    margin-bottom: 1.5rem;
}

.settings-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.exercise-options {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.exercise-btn {
    padding: 0.75rem 1.25rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    background: #f5f5f5;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.exercise-btn.active {
    background: #1890ff;
    color: #fff;
    border-color: #1890ff;
}

.exercise-btn:hover {
    background: #e6f7ff;
}

.settings-row {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.settings-row .settings-group {
    flex: 1;
}

/* 开始按钮 */
.start-btn {
    display: block;
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, #1890ff 0%, #52c41a);
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s;
}

.start-btn:hover {
    background: #40a9ff;
}

.start-btn:disabled {
    opacity: 0.7;
}

/* 嚂三声提示 */
.countdown-hint {
    text-align: center;
    color: #999;
    font-size: 0.85rem;
    margin-top: 1rem;
}

/* 大屏倒计时 */
.countdown-panel {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    background: #1a1a2e;
    z-index: 1000;
}

.countdown-panel.active {
    display: flex;
}

.countdown-status {
    font-size: 1.2rem;
    font-weight: 600;
    text-align: center;
}

.countdown-exercise {
    font-size: 3rem;
    font-weight: 500;
    color: #1890ff;
    margin-bottom: 0.5rem;
}

.countdown-timer {
    font-size: 5rem;
    font-weight: bold;
}

.countdown-round {
    font-size: 1.5rem;
    color: #666;
    margin-bottom: 0.25rem;
}
.countdown-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}
/* 暂停/重置按钮 */
.pause-btn, .reset-btn {
    display: none;
    padding: 1rem 2rem;
    background: #ff9800;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
}
/* 工作状态 */
.countdown-panel.working {
    background: linear-gradient(135deg, #ff6b00 0%, #52c41a);
}
.countdown-panel.working .countdown-exercise {
    color: #fff;
}
.countdown-panel.working .countdown-timer {
    color: #ff6b00;
}
/* 休息状态 */
.countdown-panel.resting {
    background: linear-gradient(135deg, #1890ff 0%, #52c41a);
}
.countdown-panel.resting .countdown-exercise {
    color: #52c41a;
}
.countdown-panel.resting .countdown-timer {
    color: #1890ff;
}
/* HIT运动页面样式 */
.hit-container {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    padding: 1.5rem;
}

.steps-section {
    margin-bottom: 1.5rem;
}

.steps-section h3 {
    margin-bottom: 1rem;
}

.steps-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.step-item {
    display: flex;
    align-items: flex-end;
    gap: 0.75rem;
    background: #fff;
    border-radius: 6px;
    padding: 0.6rem 0.75rem;
    margin-bottom: 0.5rem;
    border: 1px solid #e8e8e8;
    flex-wrap: wrap;
}

.step-number {
    font-weight: 600;
    color: #333;
    font-size: 0.85rem;
    width: 20px;
    flex-shrink: 0;
    padding-bottom: 0.4rem;
}

.step-item > .form-group {
    margin-bottom: 0;
}

.step-item > .form-group:first-of-type {
    flex: 1;
    min-width: 100px;
}

.step-item > .form-group:not(:first-of-type) {
    width: 75px;
    flex-shrink: 0;
}

.step-delete {
    background: transparent;
    border: 1px solid #ff4d4f;
    color: #ff4d4f;
    cursor: pointer;
    font-size: 0.75rem;
    padding: 0.35rem 0.5rem;
    border-radius: 4px;
    flex-shrink: 0;
    margin-left: auto;
}

.step-delete:hover {
    color: #ff7875;
}

.step-form {
    margin-top: 0.5rem;
}

.form-group {
    margin-bottom: 0.5rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    color: #666;
    margin-bottom: 0.25rem;
}

.form-row {
    display: flex;
    gap: 1rem;
}

.form-row .form-group {
    flex: 1;
}

.form-input {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 0.9rem;
}

.start-section {
    margin-top: 1.5rem;
}

/* 开始按钮 */
.start-btn {
    display: block;
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, #1890ff 0%, #52c41a 100%);
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    color: #fff;
    cursor: pointer;
    transition: all 0.3s;
}

.start-btn:hover {
    opacity: 0.9;
}

/* 嚂三声提示 */
.countdown-hint {
    text-align: center;
    color: #999;
    font-size: 0.85rem;
    margin-top: 1rem;
}

/* 大屏倒计时 */
.countdown-panel {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    background: #fff;
    z-index: 1000;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.countdown-panel.active {
    display: flex;
}

.countdown-circle {
    width: 320px;
    height: 320px;
    background: #fff;
    border: 3px solid #e0e0e0;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px;
}

.countdown-status {
    font-size: 1rem;
    color: rgba(0,0,0,0.4);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.countdown-exercise {
    font-size: 2.2rem;
    font-weight: 600;
    color: #333;
    margin: 0.3rem 0;
    max-width: 280px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.countdown-timer {
    font-size: 5rem;
    font-weight: bold;
    color: #333;
    line-height: 1;
}

.countdown-round {
    font-size: 0.9rem;
    color: rgba(0,0,0,0.4);
    margin-top: 0.5rem;
}

.countdown-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

/* 暂停/重置按钮 */
.pause-btn, .reset-btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: transparent;
    color: rgba(0,0,0,0.6);
    border: 1px solid rgba(0,0,0,0.2);
    border-radius: 25px;
    font-size: 0.9rem;
    cursor: pointer;
}

.pause-btn:hover, .reset-btn:hover {
    background: rgba(0,0,0,0.05);
    color: #333;
}

/* 工作状态 */
.countdown-panel.working .countdown-circle {
    border-color: #ff6b00;
}
.countdown-panel.working .countdown-status {
    color: #ff6b00;
}
.countdown-panel.working .countdown-exercise {
    color: #ff6b00;
}
.countdown-panel.working .countdown-timer {
    color: #ff6b00;
}

/* 休息状态 */
.countdown-panel.resting .countdown-circle {
    border-color: #52c41a;
}
.countdown-panel.resting .countdown-status {
    color: #52c41a;
}
.countdown-panel.resting .countdown-timer {
    color: #52c41a;
}

/* 准备状态 */
.countdown-panel.preparing .countdown-circle {
    border-color: #1890ff;
}
.countdown-panel.preparing .countdown-status {
    color: #1890ff;
}
.countdown-panel.preparing .countdown-timer {
    color: #1890ff;
}
/* 移动端适配 */
@media screen and (max-width: 768px) {
    .hit-container {
        padding: 1rem;
    }
    .settings-group {
        margin-bottom: 1rem;
    }
    .exercise-options {
        flex-wrap: wrap;
        gap: 0.4rem;
    }
    .exercise-btn {
        padding: 0.5rem 0.8rem;
        font-size: 0.8rem;
    }
    .settings-row .settings-group {
        flex: 1;
    }
    .start-btn {
        width: 100%;
    }
    .step-item {
        padding: 0.75rem;
    }
    .step-number {
        font-size: 0.85rem;
    }
    .step-delete {
        font-size: 0.75rem;
    }
    .form-input {
        padding: 0.4rem 0.6rem;
        font-size: 0.85rem;
    }
}

/* HIT运动 - 训练计划卡片 */
.plans-section {
    margin-bottom: 1rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.section-header h3 {
    margin: 0;
    font-size: 1rem;
}

.plans-list {
    display: grid;
    gap: 0.5rem;
}

.plan-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: #fafafa;
    border-radius: 6px;
    border: 1px solid #f0f0f0;
}

.plan-card:hover {
    background: #f5f5f5;
}

.plan-card-name {
    font-weight: 600;
    color: #333;
    font-size: 0.95rem;
}

.plan-card-meta {
    font-size: 0.75rem;
    color: #999;
    margin-top: 2px;
}

.plan-card-actions {
    display: flex;
    gap: 0.5rem;
}

/* 编辑面板 */
.edit-panel {
    background: #fafafa;
    border-radius: 8px;
    padding: 1rem 1.25rem;
    margin-top: 1rem;
}

.edit-panel > .form-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.edit-panel > .form-group label {
    flex-shrink: 0;
    margin-bottom: 0;
    font-size: 0.9rem;
}

.edit-panel > .form-group .form-input {
    flex: 1;
    max-width: 300px;
}

.steps-editor {
    margin: 1rem 0;
}

.steps-editor h4 {
    margin-bottom: 0.75rem;
    color: #333;
    font-size: 0.95rem;
}

/* 步骤横向布局 */
.step-item .form-group label {
    font-size: 0.7rem;
    margin-bottom: 2px;
}

.step-item .form-input {
    padding: 0.35rem 0.5rem;
    font-size: 0.85rem;
}

.edit-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
}

.btn-large {
    padding: 0.5rem 1.5rem;
    font-size: 0.9rem;
}

.btn-danger {
    background: #ff4d4f;
    color: #fff;
}

.btn-danger:hover {
    background: #ff7875;
}

/* 倒计时面板 - 训练名称 */
.countdown-plan-name {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.7);
    margin-bottom: 0.5rem;
}

/* 空状态 */
.empty-message {
    text-align: center;
    color: #999;
    padding: 2rem;
    background: #fafafa;
    border-radius: 8px;
}

/* 移动端适配 */
@media screen and (max-width: 768px) {
    .plan-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .plan-card-actions {
        width: 100%;
    }

    .plan-card-actions .btn {
        flex: 1;
    }

    .edit-panel {
        padding: 0.75rem;
    }

    .section-header {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .step-item {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .step-item > .form-group:first-of-type {
        min-width: 80px;
        flex: 1;
    }

    .step-item > .form-group:not(:first-of-type) {
        width: 65px;
    }

    .step-number {
        width: auto;
    }

    .countdown-circle {
        width: 280px;
        height: 280px;
    }

    .countdown-timer {
        font-size: 4rem;
    }

    .countdown-exercise {
        font-size: 1.6rem;
    }
}