/* ============================================================ */
/* ===== 案例数据统计 ===== */
/* ============================================================ */
.case-stats {
    padding: 60px 0;
    background: var(--white);
}
.case-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.case-stats-item {
    text-align: center;
    padding: 24px 16px;
    background: var(--off-white);
    border-radius: var(--radius);
    border: 1px solid rgba(26, 95, 180, 0.04);
    transition: var(--transition);
}
.case-stats-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(43, 123, 230, 0.06);
}
.case-stats-item .stat-number {
    font-family: 'Playfair Display', serif;
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--blue-primary);
    line-height: 1;
    margin-bottom: 4px;
}
.case-stats-item .stat-label {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
}
.case-stats-item .stat-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 2px;
}

/* ============================================================ */
/* ===== 合作案例列表 ===== */
/* ============================================================ */
.cases-page {
    padding: 60px 0 80px;
    background: var(--light-bg);
}

/* 分类标签 */
.case-filters {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
}
.case-filters .filter-btn {
    padding: 8px 24px;
    border-radius: 60px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--white);
    border: 1px solid rgba(26, 95, 180, 0.06);
    cursor: pointer;
    transition: var(--transition);
}
.case-filters .filter-btn:hover {
    border-color: var(--blue-primary);
    color: var(--blue-primary);
    transform: translateY(-2px);
}
.case-filters .filter-btn.active {
    background: var(--blue-primary);
    color: #fff;
    border-color: var(--blue-primary);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.case-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid rgba(26, 95, 180, 0.04);
    box-shadow: 0 8px 30px -12px rgba(0, 0, 0, 0.02);
    transition: var(--transition);
}
.case-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(43, 123, 230, 0.08);
}

.case-card .case-cover {
    height: 180px;
    width: 100%;
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
}
.case-card .case-cover .cover-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px 20px 14px;
    background: linear-gradient(0deg, rgba(6, 32, 74, 0.55) 0%, transparent 100%);
}
.case-card .case-cover .cover-overlay .industry-tag {
    display: inline-block;
    background: rgba(255, 255, 255, 0.18);
    backdrop-filter: blur(6px);
    padding: 4px 14px;
    border-radius: 60px;
    font-size: 0.65rem;
    font-weight: 600;
    color: #fff;
    letter-spacing: 0.5px;
}

.case-card .case-body {
    padding: 24px 26px 28px;
}
.case-card .case-body .client-name {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
}
.case-card .case-body .client-industry {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}
.case-card .case-body .case-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}
.case-card .case-body .case-results {
    display: flex;
    flex-wrap: wrap;
    gap: 16px 24px;
    border-top: 1px solid rgba(26, 95, 180, 0.06);
    padding-top: 16px;
}
.case-card .case-body .case-results .result-item {
    display: flex;
    align-items: baseline;
    gap: 4px;
}
.case-card .case-body .case-results .result-item .r-num {
    font-family: 'Playfair Display', serif;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--blue-bright);
    line-height: 1;
}
.case-card .case-body .case-results .result-item .r-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}
.case-card .case-body .case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 10px;
    margin-top: 14px;
}
.case-card .case-body .case-tags span {
    font-size: 0.7rem;
    color: var(--text-muted);
    background: var(--off-white);
    padding: 2px 12px;
    border-radius: 60px;
    font-weight: 500;
}

/* ============================================================ */
/* ===== 客户证言/评价 ===== */
/* ============================================================ */
.testimonials-case {
    padding: 80px 0;
    background: var(--white);
}
.testimonials-case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.testimonial-case-item {
    background: var(--off-white);
    border-radius: var(--radius);
    padding: 32px 28px 30px;
    border: 1px solid rgba(26, 95, 180, 0.04);
    transition: var(--transition);
}
.testimonial-case-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(43, 123, 230, 0.06);
}
.testimonial-case-item .quote-icon {
    font-size: 1.8rem;
    color: var(--blue-soft);
    opacity: 0.3;
    margin-bottom: 12px;
}
.testimonial-case-item blockquote {
    font-size: 0.98rem;
    line-height: 1.8;
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: 16px;
}
.testimonial-case-item .client-info {
    display: flex;
    align-items: center;
    gap: 14px;
}
.testimonial-case-item .client-info .avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--blue-primary), var(--blue-bright));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1rem;
    flex-shrink: 0;
}
.testimonial-case-item .client-info .info h4 {
    font-size: 1rem;
    font-weight: 700;
}
.testimonial-case-item .client-info .info span {
    font-size: 0.82rem;
    color: var(--text-muted);
}

/* ----- CTA ----- */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(145deg, #06204a 0%, #0a3a7a 40%, #0f4a9a 100%);
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-section .glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
}
.cta-section .glow-orb:nth-child(1) {
    width: 300px;
    height: 300px;
    top: -20%;
    right: -10%;
    background: rgba(43, 123, 230, 0.20);
}
.cta-section .glow-orb:nth-child(2) {
    width: 200px;
    height: 200px;
    bottom: -10%;
    left: -5%;
    background: rgba(91, 154, 255, 0.15);
}
.cta-section .container {
    position: relative;
    z-index: 2;
}
.cta-section h2 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2.4rem, 4.5vw, 3.6rem);
    font-weight: 800;
    margin-bottom: 18px;
}
.cta-section h2 span {
    background: linear-gradient(135deg, #8bb8ff, #c0d8f5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.cta-section p {
    font-size: 1.15rem;
    max-width: 560px;
    margin: 0 auto 36px;
    opacity: 0.85;
    line-height: 1.7;
}
.cta-section .btn-group {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
}
.cta-section .btn-white {
    background: #fff;
    color: var(--blue-deep);
    box-shadow: 0 8px 28px -6px rgba(0, 0, 0, 0.25);
}
.cta-section .btn-white:hover {
    background: var(--blue-lighter);
    color: #fff;
    box-shadow: 0 16px 48px -8px rgba(43, 123, 230, 0.40);
}
.cta-section .btn-outline-white {
    background: transparent;
    color: #fff;
    border: 1.5px solid rgba(255, 255, 255, 0.30);
    box-shadow: none;
}
.cta-section .btn-outline-white:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: #fff;
    color: #fff;
    transform: translateY(-3px);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .case-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .testimonials-case-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .case-stats-grid {
        grid-template-columns: 1fr 1fr;
    }
    .cases-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin: 0 auto;
    }
    .testimonials-case-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin: 0 auto;
    }
    .case-filters {
        gap: 8px;
    }
    .case-filters .filter-btn {
        padding: 6px 16px;
        font-size: 0.8rem;
    }
    .case-card .case-cover {
        height: 150px;
    }
    .section-header {
        margin-bottom: 40px;
    }
}

@media (max-width: 480px) {
    .case-stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }
    .case-stats-item {
        padding: 18px 12px;
    }
    .case-stats-item .stat-number {
        font-size: 2.2rem;
    }
    .case-card .case-body {
        padding: 20px 18px 22px;
    }
    .case-card .case-body .case-results {
        gap: 12px 16px;
    }
}