/* ===========================
   聊天记录视频截图 - 专用样式
   =========================== */

/* 使用说明引导卡片 */
.cv-guide-card {
    background: linear-gradient(135deg, rgba(37,99,235,0.04), rgba(124,58,237,0.04));
    border: 1px solid rgba(37,99,235,0.15);
    border-radius: var(--radius-lg, 12px);
    padding: var(--spacing-lg, 24px);
    margin-bottom: var(--spacing-lg, 24px);
}
.cv-guide-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: var(--text-base, 16px);
    font-weight: 700;
    color: var(--primary, #2563EB);
    margin-bottom: var(--spacing-md, 16px);
}
.cv-guide-title i {
    font-size: 1.2rem;
}
.cv-guide-content {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.cv-guide-step {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}
.cv-guide-num {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--primary, #2563EB);
    color: #fff;
    font-size: var(--text-xs, 12px);
    font-weight: 700;
}
.cv-guide-text {
    font-size: var(--text-sm, 14px);
    color: var(--text-secondary, #6B7280);
    line-height: 1.6;
}
.cv-guide-text b {
    color: var(--text-primary, #111827);
}
.cv-guide-tip {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 10px 14px;
    background: rgba(245,158,11,0.08);
    border: 1px solid rgba(245,158,11,0.2);
    border-radius: var(--radius-md, 8px);
    font-size: var(--text-xs, 12px);
    color: #92400E;
    line-height: 1.6;
    margin-top: 4px;
}
.cv-guide-tip i {
    flex-shrink: 0;
    font-size: 14px;
    color: #D97706;
    margin-top: 2px;
}

/* 视频预览 */
.cv-video-preview {
    margin: var(--spacing-md, 16px) 0;
    text-align: center;
}
.cv-video-info {
    margin-top: 8px;
    font-size: var(--text-xs, 12px);
    color: var(--text-muted, #9CA3AF);
}

/* 进度统计 */
.cv-progress-info {
    font-size: var(--text-sm, 14px);
    font-weight: 600;
    color: var(--text-primary, #111827);
    margin-bottom: var(--spacing-sm, 8px);
}
.cv-progress-stats {
    display: flex;
    gap: 16px;
    font-size: var(--text-xs, 12px);
    color: var(--text-secondary, #6B7280);
    margin-bottom: var(--spacing-sm, 8px);
}
.cv-progress-detail {
    max-height: 200px;
    overflow-y: auto;
    font-size: 11px;
    color: var(--text-muted, #9CA3AF);
    padding: 8px;
    background: var(--bg-main, #F9FAFB);
    border-radius: var(--radius-md, 8px);
    border: 1px solid var(--border, #E5E7EB);
}
.cv-progress-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 2px 0;
}
.cv-progress-item i {
    font-size: 12px;
    flex-shrink: 0;
}

/* 结果汇总 */
.cv-result-summary {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    padding: var(--spacing-sm, 8px) 0;
    margin-bottom: var(--spacing-md, 16px);
}
.cv-stat-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: var(--bg-main, #F9FAFB);
    border: 1px solid var(--border, #E5E7EB);
    border-radius: var(--radius-md, 8px);
    font-size: var(--text-sm, 14px);
    color: var(--text-secondary, #6B7280);
}
.cv-stat-item i {
    font-size: 14px;
    color: var(--text-muted, #9CA3AF);
}
.cv-stat-item b {
    color: var(--text-primary, #111827);
}
.cv-stat-kept {
    background: rgba(22,163,74,0.06);
    border-color: rgba(22,163,74,0.2);
}
.cv-stat-kept i { color: var(--success, #16A34A); }
.cv-stat-skipped {
    background: rgba(156,163,175,0.06);
    border-color: rgba(156,163,175,0.2);
}

/* 结果网格 */
.cv-result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
    max-height: 600px;
    overflow-y: auto;
    padding: 4px;
}
.cv-frame-item {
    position: relative;
    border: 1px solid var(--border, #E5E7EB);
    border-radius: var(--radius-lg, 12px);
    overflow: hidden;
    background: var(--bg-card, #FFFFFF);
    transition: box-shadow 0.2s;
}
.cv-frame-item:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}
.cv-frame-img {
    width: 100%;
    display: block;
    aspect-ratio: 9/16;
    object-fit: cover;
    background: var(--bg-main, #F9FAFB);
}
.cv-frame-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 10px;
    font-size: 11px;
    color: var(--text-muted, #9CA3AF);
}
.cv-frame-num {
    font-weight: 700;
    color: var(--primary, #2563EB);
}
.cv-frame-download {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: var(--radius-sm, 6px);
    background: rgba(255,255,255,0.9);
    color: var(--primary, #2563EB);
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.15s;
    font-size: 14px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.1);
}
.cv-frame-delete {
    position: absolute;
    top: 6px;
    right: 38px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: var(--radius-sm, 6px);
    background: rgba(255,255,255,0.9);
    color: #DC2626;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.15s, background 0.15s;
    font-size: 14px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.1);
}
.cv-frame-delete:hover {
    background: #FEE2E2;
}
.cv-frame-item:hover .cv-frame-download,
.cv-frame-item:hover .cv-frame-delete { opacity: 1; }

/* 响应式 */
@media (max-width: 768px) {
    .cv-result-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 8px;
    }
    .cv-guide-step {
        flex-direction: column;
        gap: 4px;
    }
    .cv-result-summary {
        flex-direction: column;
        gap: 6px;
    }
}
@media (max-width: 480px) {
    .cv-result-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}