/* --- 关于我们页面专属样式 --- */

/* ===== 1. Banner 背景图 + 深色蒙版 ===== */
.page-banner {
    position: relative;
    margin-top: 80px;
    padding: 120px 0;
    text-align: center;
    color: white;
    background-image: url('img/10001.jpg'); /* 可替换为实际图片路径 */
    background-size: cover;
    background-position: 0 30%;
    /*background-attachment: fixed;*/ /* 视差效果，可选 */
}

.page-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6); /* 深色蒙版，透明度可调 */
    z-index: 1;
}

.page-banner .container {
    position: relative;
    z-index: 2;
}

.page-banner h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
}

.page-banner p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
}

/* ===== 2. 公司介绍 ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-content h2 {
    font-size: 2rem;
    color: var(--secondary);
    margin-bottom: 24px;
    font-weight: 700;
}

.about-content p {
    font-size: 1rem;
    color: var(--dark);
    line-height: 1.7;
    margin-bottom: 20px;
}

.about-img-wrap {
    position: relative;
}

.about-img {
    width: 100%;
    height: 450px;
    border-radius: 24px;
    background-size: cover;
    background-position: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* 三个数据卡片 */
.stats-cards {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    margin-top: 32px;
}

.stat-card {
    flex: 1;
    min-width: 120px;
    background: #f8fafc;
    border-radius: 20px;
    padding: 8px 4px;
    text-align: center;
    border: 1px solid #e2e8f0;
    transition: transform 0.3s, box-shadow 0.3s;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
    border-color: var(--primary);
}

.stat-number {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.2;
    margin-bottom: 6px;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--gray);
    font-weight: 500;
    letter-spacing: 1px;
}

/* ===== 3. 核心价值观（图标+文字，浅色背景） ===== */
.core-values-bg {
    background-color: #F9FAFB;  /* 浅灰底色 */
    padding: 80px 0;
    text-align: center;
}

.core-values-content h2 {
    font-size: 2.2rem;
    color: var(--secondary);
    margin-bottom: 48px;
    font-weight: 700;
    letter-spacing: 2px;
}

.values-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.value-item {
    flex: 1;
    min-width: 180px;
    text-align: center;
    padding: 20px 16px;
    transition: transform 0.3s;
}

.value-item:hover {
    transform: translateY(-5px);
}
.value-icon1{
    width: 48px;
    height: 48px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.value-icon1 img {
    width: 90%;
    height: auto;
    display: block;
}

.value-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.value-icon img {
    width: 100%;
    height: auto;
    display: block;
}

.value-item h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 12px;
}

.value-item p {
    font-size: 0.9rem;
    color: var(--gray);
    line-height: 1.5;
    max-width: 200px;
    margin: 0 auto;
}

/* ===== 4. 发展历程（时间线） ===== */
.timeline {
    position: relative;
    max-width: 900px;
    margin: 40px auto 0;
    padding-left: 30px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary), #cbd5e1);
}

.timeline-item {
    position: relative;
    margin-bottom: 48px;
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
}

.timeline-dot {
    position: absolute;
    left: -22px;
    top: 8px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--primary);
    border: 3px solid white;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
    z-index: 2;
}

.timeline-date {
    flex: 0 0 110px;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--primary);
    padding-top: 4px;
}

.timeline-content {
    flex: 1;
    background: var(--white);
    border-radius: 16px;
    padding: 20px 24px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    border: 1px solid #edf2f7;
    transition: transform 0.3s;
}

.timeline-content:hover {
    transform: translateX(6px);
    border-color: #bfdbfe;
}

.timeline-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--secondary);
}

.timeline-content p {
    color: var(--gray);
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 0;
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .page-banner {
        padding: 60px 0;
        background-attachment: scroll;
    }
    .page-banner h1 {
        font-size: 2rem;
    }
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .about-img {
        height: 320px;
    }
    .stats-cards {
        gap: 16px;
    }
    .stat-card {
        padding: 16px 12px;
    }
    .stat-number {
        font-size: 1.4rem;
    }
    .core-values-bg {
        padding: 60px 0;
    }
    .core-values-content h2 {
        font-size: 1.8rem;
        margin-bottom: 32px;
    }
    .values-grid {
        gap: 30px;
    }
    .value-item {
        min-width: 140px;
    }
    .value-icon {
        width: 60px;
        height: 60px;
    }
    .value-item h3 {
        font-size: 1.2rem;
    }
    .timeline {
        padding-left: 20px;
    }
    .timeline::before {
        left: 8px;
    }
    .timeline-dot {
        left: -14px;
        width: 10px;
        height: 10px;
    }
    .timeline-date {
        flex: 0 0 80px;
        font-size: 0.9rem;
    }
    .timeline-content {
        padding: 16px;
    }
}

@media (max-width: 480px) {
    .stats-cards {
        flex-direction: column;
    }
    .timeline-date {
        flex: 0 0 100%;
        margin-bottom: 8px;
    }
    .timeline-item {
        flex-direction: column;
    }
    .timeline-content {
        width: 100%;
    }
    .values-grid {
        flex-direction: column;
        align-items: center;
    }
    .value-item {
        max-width: 260px;
    }
}