/* ===================================
   成功案例 / Success Stories
   左右主从布局样式
   =================================== */

/* Section 容器 */
.success-stories {
    padding: 80px 0;
    background: #fff;
}

.success-stories .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Section 标题 */
.success-stories .section-title {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary, #1a1a1a);
    margin-bottom: 60px;
}

/* 主布局：左右分栏 */
.success-stories-layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 40px;
    align-items: start;
}

/* ===================================
   左侧：详情面板
   =================================== */
.case-detail-panel {
    background: #fff;
    border-radius: 20px;
    padding: 40px;
    min-height: 480px;
    opacity: 0;
    transform: translateX(-20px);
    animation: fadeInSlide 0.4s ease forwards;
}

@keyframes fadeInSlide {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 客户 Logo */
.case-detail-logo {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    font-size: 32px;
    font-weight: 700;
    color: var(--primary, #0056D2);
}

/* 客户名称 */
.case-detail-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary, #1a1a1a);
    margin-bottom: 12px;
}

/* 场景标签 */
.case-detail-scenario {
    display: inline-block;
    padding: 6px 16px;
    background: var(--primary-light, #e6f0ff);
    color: var(--primary, #0056D2);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.case-detail-scenario:hover {
    background: var(--primary, #0056D2);
    color: #fff;
}

/* 案例简介 */
.case-detail-summary {
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-secondary, #555);
    margin-bottom: 32px;
}

/* 成果数据网格 */
.case-detail-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 32px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: #f8fafc;
    border-radius: 12px;
}

.highlight-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.highlight-text {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary, #1a1a1a);
}

/* CTA 按钮 */
.case-detail-cta {
    display: inline-flex;
    align-items: center;
    padding: 14px 32px;
    background: var(--primary, #0056D2);
    color: #fff;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
}

.case-detail-cta:hover {
    background: #0044a8;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 86, 210, 0.3);
}

/* ===================================
   右侧：案例列表
   =================================== */
.case-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* 案例卡片 */
.case-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: #fff;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.case-card:hover {
    border-color: var(--primary, #0056D2);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 86, 210, 0.15);
}

.case-card.active {
    border-color: var(--primary, #0056D2);
    box-shadow: 0 0 0 3px rgba(0, 86, 210, 0.2);
    background: #f8fbff;
}

/* 卡片 Logo */
.case-card-logo {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-secondary, #666);
    flex-shrink: 0;
}

.case-card.active .case-card-logo {
    color: var(--primary, #0056D2);
}

/* 卡片内容 */
.case-card-content {
    flex: 1;
    min-width: 0;
}

/* 卡片客户名 */
.case-card-name {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary, #1a1a1a);
    margin-bottom: 4px;
}

.case-card:not(.active) .case-card-name {
    color: var(--text-secondary, #6b7280);
}

/* 卡片场景标签 */
.case-card-scenario {
    display: inline-block;
    padding: 4px 10px;
    background: #f3f4f6;
    color: var(--text-secondary, #6b7280);
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.case-card.active .case-card-scenario {
    background: var(--primary-light, #e6f0ff);
    color: var(--primary, #0056D2);
}

/* ===================================
   响应式设计
   =================================== */

/* 平板：上下堆叠 */
@media (max-width: 1023px) {
    .success-stories-layout {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .case-detail-panel {
        min-height: auto;
    }

    .case-list {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
}

/* 移动端：仅列表 + 模态详情 */
@media (max-width: 767px) {
    .success-stories {
        padding: 48px 0;
    }

    .success-stories .section-title {
        font-size: 28px;
        margin-bottom: 40px;
    }

    /* 隐藏左侧详情面板 */
    .case-detail-panel {
        display: none;
    }

    /* 列表全宽 */
    .case-list {
        grid-template-columns: 1fr;
    }

    /* 模态详情样式 */
    .case-detail-modal {
        position: fixed;
        inset: 0;
        background: #fff;
        z-index: 1000;
        overflow-y: auto;
        display: none;
        padding: 20px;
    }

    .case-detail-modal.active {
        display: block;
        animation: slideUp 0.3s ease;
    }

    @keyframes slideUp {
        from {
            opacity: 0;
            transform: translateY(100%);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .modal-close {
        position: absolute;
        top: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
        border: none;
        background: #f3f4f6;
        border-radius: 50%;
        font-size: 24px;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .modal-content {
        max-width: 600px;
        margin: 60px auto 0;
    }
}