/* css/about.css */

/* 页面通用容器与排版 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 20px;
}

.section-title {
    font-size: 2.5rem;
    color: #ffffff;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
    padding-bottom: 10px;
}

.section-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 60px;
    height: 3px;
    background-color: var(--pcb-glow);
    box-shadow: 0 0 10px var(--pcb-glow);
}

.section-title.center {
    text-align: center;
    display: block;
}

.section-title.center::after {
    left: 50%;
    transform: translateX(-50%);
}

.text-content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-main);
    margin-bottom: 20px;
}

.bg-darker {
    background-color: rgba(0, 0, 0, 0.2);
    border-top: 1px solid var(--pcb-trace);
    border-bottom: 1px solid var(--pcb-trace);
}

/* 顶部 Hero 区域 */
.about-hero {
    padding: 120px 20px;
    text-align: center;
    position: relative;
    background-color: var(--pcb-dark);
    /* 纯 CSS 绘制科技感网格背景 */
    background-image: 
        linear-gradient(rgba(26, 66, 37, 0.3) 1px, transparent 1px),
        linear-gradient(90deg, rgba(26, 66, 37, 0.3) 1px, transparent 1px);
    background-size: 40px 40px;
    border-bottom: 1px solid var(--pcb-trace);
}

.about-hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(circle at center, transparent 0%, var(--pcb-dark) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.about-hero h1 {
    font-size: 3.5rem;
    color: #ffffff;
    margin-bottom: 20px;
    text-shadow: 0 0 20px rgba(0, 255, 65, 0.4);
    letter-spacing: 2px;
}

.about-hero p {
    font-size: 1.5rem;
    color: var(--pcb-glow);
    max-width: 800px;
    margin: 0 auto;
}

/* Overview 区域的统计数据块 */
.overview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.stats-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.stat-box {
    background: rgba(26, 66, 37, 0.2);
    border: 1px solid var(--pcb-trace);
    padding: 30px 20px;
    text-align: center;
    border-radius: 8px;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.stat-box:hover {
    transform: translateY(-5px);
    border-color: var(--pcb-glow);
    box-shadow: 0 5px 20px rgba(0, 255, 65, 0.15);
}

.stat-num {
    display: block;
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--pcb-glow);
    margin-bottom: 10px;
}

.stat-label {
    font-size: 1rem;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* 核心价值观卡片 */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.value-card {
    background: linear-gradient(145deg, rgba(26, 66, 37, 0.4), rgba(5, 20, 10, 0.8));
    border: 1px solid var(--pcb-trace);
    padding: 40px 30px;
    border-radius: 12px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.value-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--pcb-glow);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.value-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    border-color: rgba(0, 255, 65, 0.3);
}

.value-card:hover::before {
    transform: scaleX(1);
}

.value-icon {
    width: 50px;
    height: 50px;
    margin-bottom: 20px;
    fill: var(--pcb-glow);
}

.value-card h3 {
    font-size: 1.5rem;
    color: #fff;
    margin-bottom: 15px;
}

/* 制造能力与列表 */
.capabilities-list {
    list-style: none;
    padding: 0;
    margin-top: 30px;
}

.capabilities-list li {
    position: relative;
    padding-left: 30px;
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.capabilities-list li::before {
    content: '▹';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--pcb-glow);
    font-size: 1.5rem;
    line-height: 1.2;
}

.capabilities-list strong {
    color: #fff;
}

/* 联系信息区域 */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    background: rgba(26, 66, 37, 0.2);
    padding: 25px;
    border-radius: 8px;
    border: 1px solid var(--pcb-trace);
}

.contact-item svg {
    width: 30px;
    height: 30px;
    fill: var(--pcb-glow);
    flex-shrink: 0;
}

.contact-details h4 {
    color: #fff;
    margin-bottom: 5px;
    font-size: 1.2rem;
}

.contact-details p, .contact-details a {
    color: var(--text-main);
    text-decoration: none;
    font-size: 1rem;
    transition: color 0.3s;
}

.contact-details a:hover {
    color: var(--pcb-glow);
}

/* 响应式设计 */
@media (max-width: 992px) {
    .overview-grid {
        grid-template-columns: 1fr;
    }
    .about-hero h1 {
        font-size: 2.8rem;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 50px 20px;
    }
    .stats-container {
        grid-template-columns: 1fr;
    }
    .about-hero h1 {
        font-size: 2.2rem;
    }
    .about-hero p {
        font-size: 1.2rem;
    }
}