/* ========================================
   关于我们 - 独立样式
======================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: #ffffff;
    color: #333;
    line-height: 1.8;
    min-width: 320px;
}

img {
    max-width: 100%;
    display: block;
    border: 0;
}

/* ========== 通用段落区 ========== */
.aboutus-section {
    width: 100%;
    padding: 60px 20px;
    background: #ffffff;
}

.aboutus-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.aboutus-section.gray-bg {
    background: #f7f9fc;
}

/* ========== 板块标题 ========== */
.section-title {
    text-align: center;
    margin-bottom: 40px;
}

.section-title h2 {
    font-size: 30px;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 10px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: "";
    display: block;
    width: 60px;
    height: 3px;
    background: #19a2c6;
    margin: 14px auto 0;
    border-radius: 2px;
}

.section-title .en {
    display: block;
    font-size: 14px;
    color: #9ca3af;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-top: 8px;
}

.section-title .sub {
    display: block;
    font-size: 15px;
    color: #6b7280;
    margin-top: 4px;
}

/* ========== 1. 公司简介 ========== */
.company-intro {
    display: flex;
    align-items: center;
    gap: 50px;
    flex-wrap: wrap;
}

.intro-text {
    flex: 1;
    min-width: 320px;
}

.intro-text p {
    font-size: 15px;
    color: #4b5563;
    margin-bottom: 14px;
    text-align: justify;
}

.intro-text p strong {
    color: #19a2c6;
    font-weight: 600;
}

.intro-image {
    flex: 0 0 45%;
    min-width: 320px;
    text-align: center;
}

.intro-image img {
    width: 100%;
    max-width: 480px;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

/* ========== 2. 服务流程 ========== */
.process-wrap {
    text-align: center;
}

.process-wrap img {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    border-radius: 8px;
}

/* ========== 3. 前沿技术 ========== */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(9, 1fr);
    gap: 16px;
}

.tech-item {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.25s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tech-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(25, 162, 198, 0.15);
    border-color: #19a2c6;
}

.tech-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: 10px;
}

/* ========== 4. 合作伙伴 ========== */
.partner-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

.partner-item {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.25s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.partner-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
    border-color: #c7d2fe;
}

.partner-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    opacity: 0.9;
    transition: opacity 0.25s ease;
}

.partner-item:hover img {
    opacity: 1;
}

/* ========================================
   响应式适配
======================================== */
@media (max-width: 992px) {
    .tech-grid {
        grid-template-columns: repeat(6, 1fr);
    }
    .partner-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 768px) {
    .aboutus-section {
        padding: 40px 16px;
    }
    .section-title h2 {
        font-size: 24px;
    }
    .company-intro {
        flex-direction: column;
        gap: 30px;
    }
    .intro-image {
        flex: 1 1 100%;
    }
    .tech-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 12px;
    }
    .partner-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 14px;
    }
}

@media (max-width: 480px) {
    .tech-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .partner-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}