/* ============ 客户案例页 ============ */

/* 数据统计 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    padding: 40px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 50px rgba(30, 136, 229, 0.25);
}

.stat-item {
    text-align: center;
    color: #fff;
    padding: 20px 10px;
    border-right: 1px solid rgba(255,255,255,0.15);
}

.stat-item:last-child {
    border-right: none;
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: rgba(255,255,255,0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.stat-value {
    font-size: 48px;
    font-weight: 800;
    letter-spacing: -1px;
    line-height: 1;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 14px;
    color: rgba(255,255,255,0.85);
    letter-spacing: 2px;
}

@media (max-width: 900px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        padding: 30px 20px;
    }
    .stat-item {
        border-right: none;
        border-bottom: 1px solid rgba(255,255,255,0.15);
        padding: 20px;
    }
    .stat-item:nth-child(3), .stat-item:nth-child(4) {
        border-bottom: none;
    }
    .stat-value { font-size: 36px; }
}

/* 案例分块 */
.case-block {
    margin-bottom: 56px;
    background: #fff;
    border-radius: 20px;
    padding: 44px 40px 40px;
    border: 1px solid #e8edf2;
    transition: box-shadow 0.3s ease;
}

.case-block:hover {
    box-shadow: 0 12px 32px rgba(30, 136, 229, 0.1);
}

.case-block-header {
    margin-bottom: 36px;
    padding-bottom: 24px;
    border-bottom: 1px solid #e8edf2;
}

.case-block-title {
    font-size: 28px;
    font-weight: 700;
    color: #0f172a;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 14px;
    letter-spacing: -0.3px;
}

.case-block-title .title-icon {
    width: 30px;
    height: 30px;
    color: var(--primary);
    flex-shrink: 0;
}

.case-block-title .title-icon svg {
    width: 32px;
    height: 32px;
    fill: var(--primary) !important;
}

/* ============ 案例轮播 (Swiper) ============ */
.cases-page-swiper {
    position: relative;
    padding: 20px 0;
}

.cases-page-swiper .swiper-wrapper {
    align-items: stretch;
}

.cases-page-swiper .swiper-slide {
    height: auto;
    display: flex;
    justify-content: center;
}

/* 卡片样式 - 图片卡片 + 底部悬浮标题 */
.case-card {
    width: 100%;
    background: #fbfbfb;
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    cursor: pointer;
    position: relative;
    aspect-ratio: 1;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 6px;
}

.case-card:hover {
    transform: translateY(-12px) scale(1.05);
    box-shadow: 0 28px 56px rgba(30, 136, 229, 0.22);
    z-index: 2;
}

.case-card-img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    display: block;
    border-radius: 12px;
    transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.case-card:hover .case-card-img {
    transform: scale(1.1);
}

/* 底部悬浮标题区域 - 渐变背景 */
.case-card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px 28px 14px;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.85) 100%);
    transition: background 0.3s ease;
    z-index: 1;
}

.case-card:hover .case-card-overlay {
    background: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.95) 100%);
}

.case-card-overlay h4 {
    font-size: 15px;
    font-weight: 500;
    color: #fff;
    margin: 0;
    line-height: 1.5;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    text-align: center;
}

/* 悬浮提示 tooltip */
.case-card-tooltip {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(30, 136, 229, 0.95);
    color: #fff;
    padding: 12px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 10;
    pointer-events: none;
    white-space: nowrap;
    box-shadow: 0 4px 12px rgba(30, 136, 229, 0.3);
}

.case-card-tooltip::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-top: 6px solid rgba(30, 136, 229, 0.95);
}

.case-card:hover .case-card-tooltip {
    opacity: 1;
    visibility: visible;
}

.cases-page-swiper-wrapper {
    position: relative;
    padding: 0 48px;
}

/* Swiper 导航按钮 - 位于轮播容器外侧 */
.cases-page-swiper-wrapper .swiper-button-prev,
.cases-page-swiper-wrapper .swiper-button-next {
    position: absolute;
    z-index: 10;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #f0f4f8;
    color: #5a8cb8;
    transition: all 0.25s ease;
    top: 50%;
    margin-top: -24px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.cases-page-swiper-wrapper .swiper-button-prev::after,
.cases-page-swiper-wrapper .swiper-button-next::after {
    font-size: 16px;
    font-weight: bold;
}

.cases-page-swiper-wrapper .swiper-button-prev:hover,
.cases-page-swiper-wrapper .swiper-button-next:hover {
    background: #e2edf7;
    color: var(--primary);
    transform: scale(1.08);
}

.cases-page-swiper-wrapper .swiper-button-prev {
    left: -6px;
}

.cases-page-swiper-wrapper .swiper-button-next {
    right: -6px;
}

/* Swiper 分页指示器 */
.cases-page-swiper .swiper-pagination {
    position: relative;
    margin-top: 32px;
}

.cases-page-swiper .swiper-pagination-bullet {
    width: 8px;
    height: 8px;
    background: rgba(30, 136, 229, 0.25);
    opacity: 1;
    transition: all 0.3s ease;
}

.cases-page-swiper .swiper-pagination-bullet-active {
    background: var(--primary);
    width: 28px;
    border-radius: 4px;
}

@media (max-width: 1024px) {
    .cases-page-swiper { padding: 20px 0; }
    .cases-page-swiper .swiper-button-prev,
    .cases-page-swiper .swiper-button-next {
        width: 42px;
        height: 42px;
        margin-top: -21px;
    }
    .cases-page-swiper .swiper-button-prev::after,
    .cases-page-swiper .swiper-button-next::after {
        font-size: 14px;
    }
    .cases-page-swiper .swiper-button-prev { left: -52px; }
    .cases-page-swiper .swiper-button-next { right: -52px; }
}

@media (max-width: 640px) {
    .cases-page-swiper { padding: 20px 0; }
    .cases-page-swiper .swiper-button-prev,
    .cases-page-swiper .swiper-button-next {
        width: 36px;
        height: 36px;
        margin-top: -18px;
    }
    .cases-page-swiper .swiper-button-prev::after,
    .cases-page-swiper .swiper-button-next::after {
        font-size: 12px;
    }
    .cases-page-swiper .swiper-button-prev { left: -40px; }
    .cases-page-swiper .swiper-button-next { right: -40px; }
    .case-card-overlay h4 { font-size: 13px; }
    .case-block {
        padding: 24px 16px 20px;
        margin-bottom: 32px;
    }
    .case-block-title {
        font-size: 20px;
    }
    .case-block-title .title-icon {
        width: 22px;
        height: 22px;
    }
}

@media (max-width: 420px) {
    .case-block {
        padding: 20px 12px 16px;
    }
}

/* 隐藏旧的 case-grid 相关样式 */
.case-grid {
    display: none;
}

/* 客户评价 */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.testimonial-card {
    position: relative;
    padding: 40px 32px 32px;
    background: #fff;
    border-radius: var(--radius-lg);
    transition: var(--transition);
    border: 1px solid var(--border);
}

.testimonial-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: transparent;
}

.testimonial-quote {
    position: absolute;
    top: -10px;
    left: 30px;
    font-size: 120px;
    font-family: Georgia, serif;
    color: var(--primary-lighter);
    line-height: 1;
    font-weight: 700;
    transition: var(--transition);
}

.testimonial-card:hover .testimonial-quote {
    color: var(--primary);
    opacity: 0.3;
}

.testimonial-card p {
    font-size: 15px;
    color: var(--text-regular);
    line-height: 1.9;
    margin-bottom: 28px;
    position: relative;
    z-index: 2;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 14px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    flex-shrink: 0;
}

.testimonial-author h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0 0 4px;
}

.testimonial-author span {
    font-size: 13px;
    color: var(--text-light);
}

@media (max-width: 1024px) {
    .testimonial-grid { grid-template-columns: 1fr; }
}

/* CTA */
.cta-section {
    background: url('../images/cta-bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(66, 165, 245, 0.9) 0%, rgba(30, 136, 229, 0.92) 50%, rgba(25, 118, 210, 0.9) 100%);
    pointer-events: none;
}

.cta-section::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.cta-inner {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 80px 0;
    gap: 40px;
    flex-wrap: wrap;
}

.cta-content h2 {
    font-size: 38px;
    font-weight: 800;
    color: #fff;
    line-height: 1.25;
    margin-bottom: 14px;
    letter-spacing: -0.5px;
}

.cta-content p {
    font-size: 16px;
    color: rgba(255,255,255,0.9);
    margin: 0;
}

.cta-buttons {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

@media (max-width: 900px) {
    .cta-inner { flex-direction: column; text-align: center; padding: 60px 0; }
    .cta-content h2 { font-size: 28px; }
}