/* ========================================
   公司简介页面样式
   ======================================== */

/* 页面头部 */
.about-hero {
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-top: 70px;
}

.about-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.about-hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.85) 0%, rgba(59, 130, 246, 0.75) 100%);
}

.about-hero-content {
    text-align: center;
    color: white;
    z-index: 1;
    padding: 0 20px;
}

.about-hero-content h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.about-hero-content p {
    font-size: 1.25rem;
    opacity: 0.95;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 公司介绍 */
.company-intro {
    padding: 80px 0;
    background: var(--primary-bg, #f8fafc);
}

.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.intro-content h2 {
    font-size: 2.25rem;
    color: var(--text-primary, #1e293b);
    margin-bottom: 24px;
    font-weight: 700;
}

.intro-desc {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-secondary, #64748b);
    margin-bottom: 20px;
}

.intro-image {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-lg, 0 10px 15px -3px rgba(0, 0, 0, 0.1));
}

.intro-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* 核心业务 */
.core-business {
    padding: 80px 0;
    background: white;
}

.section-title {
    text-align: center;
    font-size: 2.25rem;
    color: var(--text-primary, #1e293b);
    margin-bottom: 48px;
    font-weight: 700;
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.business-card {
    background: var(--primary-bg, #f8fafc);
    border-radius: 16px;
    padding: 32px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-light, #e2e8f0);
}

.business-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl, 0 20px 25px -5px rgba(0, 0, 0, 0.1));
}

.business-icon {
    width: 100%;
    height: 180px;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 24px;
}

.business-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.business-card h3 {
    font-size: 1.35rem;
    color: var(--text-primary, #1e293b);
    margin-bottom: 12px;
    font-weight: 600;
}

.business-card p {
    font-size: 0.95rem;
    color: var(--text-secondary, #64748b);
    line-height: 1.6;
}

/* 技术实力 */
.tech-strength {
    padding: 80px 0;
    background: var(--primary-bg, #f8fafc);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.tech-item {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md, 0 4px 6px -1px rgba(0, 0, 0, 0.1));
    transition: all 0.3s ease;
}

.tech-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl, 0 20px 25px -5px rgba(0, 0, 0, 0.1));
}

.tech-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
}

.tech-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.tech-item:hover .tech-image img {
    transform: scale(1.05);
}

.tech-item h3 {
    font-size: 1.2rem;
    color: var(--text-primary, #1e293b);
    padding: 20px 24px 8px;
    font-weight: 600;
}

.tech-item p {
    font-size: 0.9rem;
    color: var(--text-secondary, #64748b);
    padding: 0 24px 24px;
    line-height: 1.6;
}

/* 应用场景 */
.applications {
    padding: 80px 0;
    background: white;
}

.app-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.app-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 4/3;
}

.app-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.app-item:hover img {
    transform: scale(1.1);
}

.app-item span {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
}

/* 发展愿景 */
.vision {
    padding: 80px 0;
    background: var(--primary-bg, #f8fafc);
}

.vision-content {
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
}

.vision-content h2 {
    font-size: 2.25rem;
    color: var(--text-primary, #1e293b);
    margin-bottom: 32px;
    font-weight: 700;
}

.vision-desc {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-secondary, #64748b);
    margin-bottom: 20px;
}

.vision-image {
    margin-top: 48px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-lg, 0 10px 15px -3px rgba(0, 0, 0, 0.1));
}

.vision-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* 响应式 */
@media (max-width: 1024px) {
    .intro-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .business-grid,
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .app-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .about-hero-content h1 {
        font-size: 2rem;
    }

    .about-hero-content p {
        font-size: 1rem;
    }

    .business-grid,
    .tech-grid,
    .app-grid {
        grid-template-columns: 1fr;
    }

    .section-title,
    .intro-content h2,
    .vision-content h2 {
        font-size: 1.75rem;
    }

}