/*
 * Copyright (c) 2026 Alex Wang
 * @author Alex Wang <https://github.com/wanglongxiao>
 * @contact https://www.linkedin.com/in/alexwanglx/
 * Open Source Usage: attribution required; preserve this notice in redistributions.
 */

/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: #f0f2f5;
    height: 100vh;
    overflow: hidden;
    overflow-x: hidden;
}

.app-container {
    display: flex;
    height: 100vh;
    overflow-x: hidden;
}

/* 全屏生成中遮罩 */
.fullscreen-generating {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.fullscreen-generating-content {
    text-align: center;
    color: white;
}

.fullscreen-generating-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

.fullscreen-generating-text {
    font-size: 18px;
    margin-bottom: 10px;
}

.fullscreen-generating-step {
    font-size: 14px;
    opacity: 0.8;
    color: #667eea;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 左侧聊天区 (30%) */
.chat-section {
    width: 30%;
    display: flex;
    flex-direction: column;
    background: #fff;
    border-right: 1px solid #e8e8e8;
}

.chat-header {
    padding: 16px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    flex-shrink: 0;
}

.chat-header-top {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 12px;
}

.chat-header-title-group {
    min-width: 0;
    flex: 1 1 100%;
}

.chat-header h1 {
    font-size: 17px;
    line-height: 1.3;
    margin-bottom: 2px;
    white-space: nowrap;
}

.chat-header p {
    opacity: 0.9;
    font-size: 11px;
    line-height: 1.3;
}

.language-switcher {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 6px;
    flex: 0 0 auto;
    min-width: 0;
}

.language-switcher label {
    font-size: 11px;
    opacity: 0.95;
    white-space: nowrap;
}

.language-select {
    width: 100%;
    height: 32px;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.14);
    color: #fff;
    font-size: 12px;
    padding: 0 10px;
    outline: none;
    cursor: pointer;
}

.language-select option {
    color: #333;
}

.video-mode-switcher {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 6px;
    flex: 0 0 auto;
    min-width: 0;
}

.video-mode-switcher label {
    font-size: 11px;
    opacity: 0.95;
    white-space: nowrap;
}

.video-mode-select {
    width: 100%;
    height: 32px;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.14);
    color: #fff;
    font-size: 12px;
    padding: 0 10px;
    outline: none;
    cursor: pointer;
}

.video-mode-select option {
    color: #333;
}

/* ===== 自定义下拉框（替换原生 select 弹层，保证弹出位置贴合触发器、字体清晰、跨端一致）===== */
.custom-select {
    position: relative;
    flex: 0 0 auto;
}

/* 原生 select 被自定义 UI 接管后隐藏（仍保留在 DOM 中作为状态源，供既有 JS 读写） */
.native-select-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
    opacity: 0;
    pointer-events: none;
}

.custom-select-trigger {
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    min-width: 92px;
    height: 32px;
    padding: 0 10px;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.14);
    color: #fff;
    font-size: 12px;
    line-height: 1;
    cursor: pointer;
    outline: none;
    white-space: nowrap;
}

.custom-select-trigger:hover {
    background: rgba(255, 255, 255, 0.22);
}

.custom-select-value {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.custom-select-arrow {
    font-size: 10px;
    opacity: 0.9;
    transition: transform 0.15s ease;
}

.custom-select.open .custom-select-arrow {
    transform: rotate(180deg);
}

.custom-select-menu {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    min-width: 100%;
    max-height: 260px;
    overflow-y: auto;
    margin: 0;
    padding: 4px;
    list-style: none;
    background: #fff;
    border: 1px solid #e2e2e2;
    border-radius: 10px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
    z-index: 1200;
}

.custom-select-menu[hidden] {
    display: none;
}

.custom-select-option {
    padding: 8px 12px;
    border-radius: 6px;
    color: #333;
    font-size: 14px;
    line-height: 1.3;
    white-space: nowrap;
    cursor: pointer;
}

.custom-select-option:hover {
    background: #f0f2ff;
}

.custom-select-option.selected {
    background: #e8ecff;
    color: #4a54e1;
    font-weight: 600;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    background: #f5f5f5;
}

.message {
    display: flex;
    margin-bottom: 12px;
    animation: fadeIn 0.3s ease;
}

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

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    margin-right: 10px;
    flex-shrink: 0;
}

.message-content {
    background: #fff;
    padding: 10px 14px;
    border-radius: 12px;
    max-width: 85%;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    font-size: 14px;
}

.message-content p {
    margin-bottom: 6px;
    line-height: 1.5;
}

.message-content p:last-child {
    margin-bottom: 0;
}

.user-message .message-content {
    background: #667eea;
    color: white;
    margin-left: auto;
}

/* 输入区域 */
.chat-input-area {
    padding: 12px 16px;
    background: #fff;
    border-top: 1px solid #e8e8e8;
    flex-shrink: 0;
}

.uploaded-files {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 8px;
}

.uploaded-file {
    display: flex;
    align-items: center;
    background: #f0f0f0;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 11px;
}

.uploaded-file img {
    width: 20px;
    height: 20px;
    object-fit: cover;
    border-radius: 3px;
    margin-right: 6px;
}

.input-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.icon-btn {
    width: 36px;
    height: 36px;
    border: none;
    background: #f0f0f0;
    border-radius: 50%;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.3s;
    flex-shrink: 0;
}

.icon-btn:hover {
    background: #e0e0e0;
}

.icon-btn.recording {
    background: #ff4d4f;
    animation: pulse 1s infinite;
}

.text-input {
    flex: 1;
    padding: 8px 14px;
    border: 1px solid #d9d9d9;
    border-radius: 18px;
    font-size: 14px;
    outline: none;
}

.send-btn {
    padding: 8px 16px;
    background: #667eea;
    color: white;
    border: none;
    border-radius: 18px;
    cursor: pointer;
    font-size: 13px;
    flex-shrink: 0;
}

.recording-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 6px;
    color: #ff4d4f;
    font-size: 12px;
}

/* 右侧预览区 (60%) */
.preview-section {
    width: 70%;
    display: flex;
    flex-direction: column;
    background: #fff;
    position: relative;
    overflow-x: hidden;
}

.preview-header {
    padding: 16px 20px;
    background: #fff;
    border-bottom: 1px solid #e8e8e8;
    flex-shrink: 0;
}

.preview-header h2 {
    font-size: 16px;
    margin-bottom: 10px;
}

.progress-bar-container {
    display: flex;
    align-items: center;
    gap: 10px;
}

.progress-bar {
    flex: 1;
    height: 6px;
    background: #f0f0f0;
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    transition: width 0.5s ease;
}

.progress-text {
    font-size: 12px;
    color: #666;
    min-width: 36px;
}

/* 步骤指示器 */
.steps-container {
    display: flex;
    justify-content: space-around;
    padding: 16px;
    background: #fafafa;
    border-bottom: 1px solid #e8e8e8;
    flex-shrink: 0;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.step-number {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: #e0e0e0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 12px;
    color: #666;
    transition: all 0.3s;
}

.step.active .step-number {
    background: #667eea;
    color: white;
    animation: pulse-glow 1.5s infinite;
}

.step.completed .step-number {
    background: #52c41a;
    color: white;
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 0 0 rgba(102, 126, 234, 0.4); }
    50% { box-shadow: 0 0 0 8px rgba(102, 126, 234, 0); }
}

.step-label {
    font-size: 11px;
    color: #666;
}

.step-status {
    font-size: 12px;
}

/* 内容展示区 - 可滚动 */
.content-display {
    flex: 1;
    padding: 16px;
    overflow-y: auto;
    overflow-x: hidden;
    background: #f8f9fa;
    display: flex;
    flex-direction: column;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: #999;
}

.empty-icon {
    font-size: 48px;
    margin-bottom: 12px;
}

/* 生成内容卡片 */
.content-card {
    background: #fff;
    border: 1px solid #e8e8e8;
    border-radius: 8px;
    padding: 14px;
    margin-bottom: 14px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.content-card h4 {
    font-size: 14px;
    color: #333;
    margin-bottom: 10px;
    font-weight: 600;
}

.script-content {
    background: #f5f5f5;
    padding: 12px;
    border-radius: 6px;
    font-size: 13px;
    line-height: 1.6;
}

/* 图片网格 */
.images-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
}

/* 参考图库 / 各分镜故事版 网格：自适应列数 */
.reference-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
}

.reference-item {
    min-width: 0;
}

.image-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    background: #f0f0f0;
}

.image-item img {
    width: 100%;
    height: 140px;
    object-fit: cover;
    display: block;
}

.image-label {
    position: static;
    background: #f8f9fa;
    color: #666;
    padding: 8px 10px;
    font-size: 11px;
    border-top: 1px solid #e8e8e8;
}

/* 图片/视频操作按钮 */
.item-actions {
    display: flex;
    gap: 6px;
    padding: 8px;
    background: #f8f9fa;
    border-top: 1px solid #e8e8e8;
}

.item-btn {
    flex: 1;
    padding: 6px 8px;
    border: none;
    border-radius: 4px;
    font-size: 11px;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
    text-decoration: none;
}

.item-btn.regenerate {
    background: #fff;
    color: #667eea;
    border: 1px solid #667eea;
}

.item-btn.regenerate:hover {
    background: #667eea;
    color: white;
}

.item-btn.download {
    background: #52c41a;
    color: white;
}

.item-btn.download:hover {
    background: #45a614;
}

/* 单个元素生成中的转转效果 */
.item-generating-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 10;
    border-radius: 4px;
}

.item-generating-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid #f0f0f0;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 8px;
}

.item-generating-text {
    font-size: 12px;
    color: #667eea;
    font-weight: 500;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 视频网格 */
.clickable-media {
    cursor: pointer;
    transition: transform 0.2s;
}

.clickable-media:hover {
    transform: scale(1.02);
}

/* 弹窗遮罩 */
.media-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.media-modal.active {
    display: flex;
}

.media-modal-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
}

.media-modal-content img,
.media-modal-content video {
    max-width: 100%;
    max-height: 90vh;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.media-modal-close {
    position: absolute;
    top: -40px;
    right: 0;
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s;
}

.media-modal-close:hover {
    background: rgba(255, 255, 255, 0.4);
}

/* 视频网格 - 每行4个 */
.videos-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    width: 100%;
    max-width: 100%;
}

@media (max-width: 1200px) {
    .videos-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 900px) {
    .videos-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .videos-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== Mobile 自适应布局 =====
   desktop：左 30%（聊天）+ 右 70%（展示）
   mobile：上 60%（展示）+ 下 40%（聊天） */
@media (max-width: 768px) {
    body {
        overflow: hidden;
    }

    .app-container {
        flex-direction: column;
        height: 100vh;
        height: 100dvh;
    }

    /* 展示区在上（60%） */
    .preview-section {
        order: 1;
        width: 100%;
        height: 60%;
        min-height: 0;
        border-right: none;
        border-bottom: 1px solid #e8e8e8;
    }

    /* 聊天区在下（40%） */
    .chat-section {
        order: 2;
        width: 100%;
        height: 40%;
        min-height: 0;
        border-right: none;
    }

    /* 头部与文案在小屏上更紧凑：标题 + 两个选择框压缩到 1 行 */
    .chat-header {
        padding: 8px 12px;
    }

    .chat-header-top {
        flex-wrap: nowrap;
        align-items: center;
        gap: 8px;
    }

    .chat-header-title-group {
        flex: 1 1 auto;
        max-width: none;
        min-width: 0;
    }

    .chat-header h1 {
        font-size: 15px;
        margin-bottom: 0;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    /* 移动端隐藏副标题与选择框文字说明，压缩高度 */
    .chat-header p,
    #appSubtitle {
        display: none;
    }

    .language-switcher,
    .video-mode-switcher {
        flex: 0 0 auto;
        width: auto;
        max-width: none;
        min-width: 0;
        margin-right: 0;
    }

    .language-switcher label,
    .video-mode-switcher label {
        display: none;
    }

    /* 移动端自定义下拉触发器与选项字体放大，便于点击/阅读 */
    .custom-select-trigger {
        min-width: 0;
        height: 32px;
        font-size: 13px;
        padding: 0 8px;
    }

    .custom-select-option {
        font-size: 15px;
        padding: 10px 12px;
    }

    /* 展示区网格在窄屏下自动收窄 */
    .reference-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 12px;
    }

    .images-grid {
        grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
        gap: 12px;
    }

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

    .content-display {
        padding: 12px;
    }

    .content-card {
        padding: 12px;
    }

    /* 步骤进度条文字缩短，避免换行拥挤 */
    .step-progress-label {
        font-size: 11px;
    }

    .overall-progress {
        padding: 10px 12px;
    }
}

@media (max-width: 420px) {
    .reference-grid,
    .images-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.video-item {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #e8e8e8;
    position: relative;
    min-width: 0;
}

.video-item video {
    width: 100%;
    height: 120px;
    object-fit: cover;
    display: block;
    cursor: pointer;
}

.video-placeholder {
    width: 100%;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
    text-align: center;
    background: linear-gradient(180deg, #f7f8fa 0%, #eef3ff 100%);
    color: #667eea;
    font-size: 13px;
    font-weight: 500;
}

.video-item .video-play-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    background: rgba(0, 0, 0, 0.6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    z-index: 2;
}

.video-item .video-play-overlay::after {
    content: '▶';
    color: white;
    font-size: 16px;
    margin-left: 3px;
}

/* 视频项有视频时的样式 */
.video-item.has-video {
    border-color: #52c41a;
    box-shadow: 0 2px 8px rgba(82, 196, 26, 0.15);
}

.video-item.has-video .video-placeholder {
    display: none !important;
}

.video-item.has-video video {
    display: block !important;
}

.video-item.has-video .video-play-overlay {
    display: flex !important;
}

/* 新生成视频的动画效果 */
@keyframes videoGeneratedPulse {
    0% { box-shadow: 0 0 0 0 rgba(82, 196, 26, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(82, 196, 26, 0); }
    100% { box-shadow: 0 0 0 0 rgba(82, 196, 26, 0); }
}

.video-item.has-video.newly-generated {
    animation: videoGeneratedPulse 1s ease-out;
}

.video-label {
    padding: 6px 10px;
    font-size: 11px;
    color: #666;
    background: #f8f9fa;
    border-bottom: 1px solid #e8e8e8;
}

.video-review-status {
    margin: 0 10px 10px;
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 12px;
    background: #f5f5f5;
    border: 1px solid #eee;
    color: #666;
}

.review-status-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.review-status-title {
    font-weight: 700;
}

.review-status-text {
    font-size: 11px;
    margin-top: 4px;
}

.review-status-feedback {
    font-size: 11px;
    margin-top: 4px;
    color: #666;
    line-height: 1.45;
}

.review-status-hint {
    font-size: 11px;
    margin-top: 6px;
    color: #8c8c8c;
    line-height: 1.45;
}

.review-status-hint-strong {
    color: #531dab;
    font-weight: 600;
}

.review-mode-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    padding: 2px 8px;
    min-height: 22px;
    border-radius: 999px;
    background: #722ed1;
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.02em;
    box-shadow: 0 2px 8px rgba(114, 46, 209, 0.22);
}

.video-review-status.is-manual-continue {
    box-shadow: 0 0 0 1px rgba(114, 46, 209, 0.08), 0 8px 18px rgba(114, 46, 209, 0.12);
}

/* 状态提示区域 - 使用白色背景，确保无黑色透明层 */
.status-section {
    padding: 12px 16px;
    border-top: 1px solid #e8e8e8;
    background: #fff !important;
    text-align: center;
    flex-shrink: 0;
    min-height: 61px;
    box-sizing: border-box;
    position: relative;
    z-index: 50;
    overflow: hidden;
    align-items: center;
    justify-content: center;
}

/* 彻底禁用历史遗留的全屏遮罩样式（避免任何场景出现黑色半透明层） */
.loading-overlay,
.fullscreen-generating {
    display: none !important;
    pointer-events: none !important;
}

/* 强制移除右侧底部任何可能的黑色透明层 */
.status-section::before,
.status-section::after {
    background: transparent !important;
    background-color: transparent !important;
    background-image: none !important;
    display: none !important;
}

/* 禁用任何可能出现在右侧底部的固定定位黑色元素 */
.preview-section [style*="position: fixed"],
.preview-section [style*="position:fixed"] {
    background: transparent !important;
}

/* 状态栏始终使用纯白底，避免出现半透明深色条 */
.status-section {
    background: #fff !important;
    background-color: #fff !important;
}

.status-text {
    font-size: 13px;
    color: #1890ff;
    margin: 0;
    line-height: 1.4;
}

/* 生成等待转转效果 - 在预览区域内，不覆盖聊天区 */
.generating-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 30px 20px;
    background: #fff;
    border-radius: 8px;
    margin: 16px 0;
    border: 1px solid #e8e8e8;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.generating-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid #f0f0f0;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 10px;
}

.generating-text {
    font-size: 13px;
    color: #667eea;
    font-weight: 500;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 步骤进度指示 */
.step-progress-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    background: transparent;
    border-bottom: 1px solid #e8e8e8;
    margin-top: 10px;
}

.step-progress-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    flex: 1;
    position: relative;
}

.step-progress-item:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 10px;
    right: -50%;
    width: 100%;
    height: 2px;
    background: #e0e0e0;
    z-index: 0;
}

.step-progress-item.completed:not(:last-child)::after {
    background: #52c41a;
}

.step-progress-dot {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #e0e0e0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    z-index: 1;
    transition: all 0.3s;
}

.step-progress-item.active .step-progress-dot {
    background: #667eea;
    color: white;
    animation: pulse-glow 1.5s infinite;
}

.step-progress-item.completed .step-progress-dot {
    background: #52c41a;
    color: white;
}

.step-progress-label {
    font-size: 11px;
    color: #666;
    font-weight: 500;
}

.step-progress-item.active .step-progress-label {
    color: #667eea;
    font-weight: 600;
}

.step-progress-item.completed .step-progress-label {
    color: #52c41a;
    font-weight: 600;
}

/* 步骤连接线动画 */
@keyframes progress-line {
    0% { width: 0; }
    100% { width: 100%; }
}

/* 整体进度条样式 */
.overall-progress {
    padding: 12px 20px;
    background: #fff;
    border-bottom: none;
}

/* 强制关闭旧的全页黑色遮罩（不再使用） */
#loadingOverlay,
#fullscreenGenerating {
    display: none !important;
    pointer-events: none !important;
}

.overall-progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.overall-progress-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.overall-progress-title {
    font-size: 13px;
    font-weight: 500;
    color: #333;
}

.overall-progress-percent {
    font-size: 13px;
    color: #667eea;
    font-weight: 600;
}

.project-end-btn {
    padding: 6px 12px;
    border: none;
    border-radius: 14px;
    background: #ff4d4f;
    color: #fff;
    cursor: pointer;
    font-size: 12px;
    transition: background 0.2s ease, opacity 0.2s ease;
}

.project-end-btn:hover {
    background: #ff7875;
}

.project-end-btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

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

.overall-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    border-radius: 4px;
    transition: width 0.5s ease;
    position: relative;
    overflow: hidden;
}

/* 进度条动画效果 */
.overall-progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* 视频操作按钮 */
.video-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.action-btn {
    padding: 8px 16px;
    background: #667eea;
    color: white;
    text-decoration: none;
    border: none;
    border-radius: 16px;
    cursor: pointer;
    font-size: 13px;
    transition: background 0.3s;
}

.action-btn:hover {
    background: #5568d3;
}

/* 全局加载遮罩 - 仅用于初始化 */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading-overlay .spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loading-overlay p {
    color: white;
    margin-top: 16px;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 5px;
    height: 5px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}