/* 1.区域1 样式 */
/* 基础容器：控制左右留白 */
.container {
    max-width: 1200px; /* 或者 1140px，根据你整体网页宽度定 */
    margin: 0 auto;
    padding: 0 20px;
}

/* Section 背景 */
.about-hero {
    background: linear-gradient(135deg, #111929 0%, #1D3986 100%);
    padding: 100px 0;
    color: #fff;
    overflow: hidden;
}

/* 左右布局 */
.hero-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
}

/* 左侧文字 */
.hero-text {
    flex: 1;
}

.badge {
    background: rgba(255, 255, 255, 0.1);
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 14px;
    margin-bottom: 24px;
    backdrop-filter: blur(5px);
}

.hero-text h1 {
    font-size: 42px;
    line-height: 1.3;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero-text .description {
    font-size: 16px;
    line-height: 1.8;
    color: #94a3b8;
    max-width: 500px;
}

/* 右侧网格 */
.hero-stats {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(2, 1fr); /* 两列 */
    gap: 20px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
}

.stat-num {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    color: #64748b;
}

/* 响应式适配 */
@media (max-width: 992px) {
    .hero-wrapper {
        flex-direction: column;
        text-align: center;
    }
    .hero-text .description {
        margin: 0 auto 40px;
    }
    .hero-stats {
        width: 100%;
    }
}

/* 2.区域2 样式 */
/* 复用之前的 container 以保证左右留白一致 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.about-mission {
    padding: 100px 0;
    background-color: #fcfcfc; /* 浅淡背景与 Hero 区域区分 */
}

/* 标题通用样式 */
.section-title {
    text-align: center;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 30px;
    color: #1d2129;
}

/* 使命部分 */
.mission-header {
    max-width: 800px;
    margin: 0 auto 100px;
    text-align: center;
}

.mission-text {
    font-size: 18px;
    line-height: 1.8;
    color: #4e5969;
}

.highlight {
    color: #165dff;
    font-weight: 600;
}

/* 价值观网格布局 */
.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr); /* 四列 */
    gap: 24px;
}

.value-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid #f2f3f5;
    transition: all 0.3s ease;
}

.value-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

/* 图标容器样式 */
.icon-box {
    width: 60px;
    height: 60px;
    margin: 0 auto 24px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

/* 根据图片设置不同的图标背景色 */
.heart { background-color: #fff1f0; color: #ff4d4f; }
.medal { background-color: #fffbe6; color: #faad14; }
.globe { background-color: #e6f7ff; color: #1890ff; }
.trend { background-color: #f6ffed; color: #52c41a; }

.value-card h3 {
    font-size: 20px;
    margin-bottom: 16px;
    color: #1d2129;
}

.value-card p {
    font-size: 14px;
    color: #86909c;
    line-height: 1.6;
}

/* 响应式：手机端变两列或一列 */
@media (max-width: 992px) {
    .values-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 576px) {
    .values-grid { grid-template-columns: 1fr; }
}

/* 3.区域3-发展历程-样式 */
/* 容器基础样式 */
.timeline-section {
    padding: 80px 20px;
    background-color: #fff;
}

.section-title {
    text-align: center;
    font-size: 32px;
    margin-bottom: 60px;
    color: #1d2129;
}

.timeline-container {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

/* 中央竖线 */
.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #e5e6eb;
    transform: translateX(-50%);
}

/* 单个历程条目 */
.timeline-item {
    position: relative;
    width: 50%; /* 占据一半宽度 */
    padding: 20px 40px;
    box-sizing: border-box;
    margin-bottom: 40px;
}

/* 奇数项在左边，内容靠右对齐 */
.timeline-item:nth-child(odd) {
    left: 0;
    text-align: right;
}

/* 偶数项在右边，内容靠左对齐 */
.timeline-item:nth-child(even) {
    left: 50%;
    text-align: left;
}

/* 卡片样式 */
.timeline-content {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    border: 1px solid #f2f3f5;
    box-shadow: 0 4px 12px rgba(0,0,0,0.03);
    transition: transform 0.3s ease;
}

.timeline-content:hover {
    transform: translateY(-5px);
}

.timeline-year {
    color: #165dff;
    font-weight: bold;
    font-size: 18px;
    display: block;
    margin-bottom: 8px;
}

.timeline-title {
    font-size: 20px;
    margin-bottom: 12px;
    color: #1d2129;
}

.timeline-desc {
    color: #4e5969;
    line-height: 1.6;
    font-size: 15px;
}

/* 时间轴上的圆点 */
.timeline-dot {
    position: absolute;
    top: 30px;
    width: 12px;
    height: 12px;
    background: #165dff;
    border: 4px solid #fff;
    border-radius: 50%;
    z-index: 10;
    box-shadow: 0 0 0 2px #165dff;
}

/* 圆点位置修正 */
.timeline-item:nth-child(odd) .timeline-dot {
    right: -10px; /* 紧贴竖线右侧 */
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -10px; /* 紧贴竖线左侧 */
}

/* 响应式：手机端全部变为单列 */
@media (max-width: 768px) {
    .timeline-line { left: 20px; }
    .timeline-item {
        width: 100%;
        left: 0 !important;
        padding-left: 50px;
        text-align: left !important;
    }
    .timeline-dot { left: 10px !important; }
}
/* 3.区域3-发展历程-样式 */