/* ==================== Header ==================== */
.about-header {
    height: 50vh;
    min-height: 400px;
    background-color: var(--bg-dark);
    padding-top: var(--nav-height);
    /* 使用深色稳重的背景图 */
    background-image: linear-gradient(rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.9)), 
                      url('https://placehold.co/1920x800/1e293b/fff?text=About+Header+BG');
    background-size: cover;
    background-position: center;
}

/* ==================== 装饰点 (Pattern Dots) ==================== */
.pattern-dots {
    width: 100px;
    height: 100px;
    background-image: radial-gradient(#0d6efd 2px, transparent 2px);
    background-size: 20px 20px;
    opacity: 0.5;
}

/* ==================== 双基因板块 (DNA Section) ==================== */
.dna-section {
    position: relative;
}

.dna-left {
    background-color: #f8f9fa; /* 浅色背景 */
    color: #1a1e21;
}

.dna-right {
    background-color: #0f172a; /* 深色背景 */
    color: #fff;
}

/* 中间的 X 连接符 */
.dna-divider {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.5rem;
    z-index: 10;
    box-shadow: 0 0 0 10px rgba(255,255,255,0.1);
}

.icon-box-lg {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* ==================== 价值观卡片 (Values) ==================== */
.value-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(0,0,0,0.03);
}

.value-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.08) !important;
}

/* ==================== 资质框 (Certificate) ==================== */
.certificate-box {
    background: #fff;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.space-y-2 li {
    margin-bottom: 0.75rem;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .dna-left, .dna-right {
        text-align: center !important;
        padding: 40px 20px !important;
    }
    .dna-left .d-flex, .dna-right .d-flex {
        justify-content: center !important;
    }
    /* 移动端图标居中 */
    .icon-box-lg {
        margin-left: auto !important;
        margin-right: auto !important;
    }
    .dna-divider {
        display: none !important; /* 移动端隐藏中间的X */
    }
}