/* ========================================
   关于我们页专用样式
   ======================================== */

.about-page {
    padding-top: calc(72px + env(safe-area-inset-top, 0px));
}

/* 公司简介区 */
.company-intro {
    background: var(--gradient-surface-dark);
    color: var(--color-white);
    padding: var(--spacing-xl) 0;
}

.company-intro-content {
    margin: 0 auto;
}

.company-intro-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(125, 211, 252, 0.22);
}

.company-intro-header h1 {
    font-size: var(--font-size-h1-section);
    margin-bottom: var(--spacing-md);
}

.company-intro-header .mission {
    font-size: var(--font-size-panel-title);
    margin: 0;
    color: var(--color-primary-blue);
    font-weight: 500;
}

.company-intro-body {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.intro-block {
    position: relative;
    text-align: left;
    padding: 24px 28px;
    background: rgba(255, 255, 255, 0.045);
    border: 1px solid rgba(125, 211, 252, 0.14);
    border-radius: 12px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.22);
}

.intro-block--highlight {
    background: rgba(16, 176, 252, 0.06);
    border-color: rgba(16, 176, 252, 0.22);
}

.intro-block__step {
    display: block;
    font-size: var(--font-size-2xs);
    font-weight: 700;
    letter-spacing: 0.14em;
    color: var(--color-text-on-dark-muted);
    margin-bottom: 10px;
}

.intro-block__title {
    font-size: var(--font-size-subheading);
    font-weight: 700;
    margin: 0 0 14px;
    color: var(--color-text-on-dark-heading);
    line-height: var(--leading-snug);
}

.intro-block__text {
    margin: 0;
    font-size: var(--font-size-lead);
    line-height: var(--leading-loose);
    color: var(--color-text-on-dark-body);
}

.intro-block__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
    padding: 0;
    margin: 16px 0 0;
}

.intro-block__tags li {
    font-size: var(--font-size-xs);
    font-weight: 600;
    letter-spacing: 0.04em;
    padding: 6px 12px;
    border-radius: 999px;
    border: 1px solid rgba(125, 211, 252, 0.38);
    color: var(--color-text-on-dark-tag);
    background: rgba(0, 0, 0, 0.15);
}

/* 时间轴 */
.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: var(--spacing-xl) 0;
}

.timeline-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.timeline-list > .timeline-item {
    list-style: none;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-brand-blue);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-lg);
    width: 50%;
}

.timeline-item:nth-child(odd) {
    left: 0;
    padding-right: var(--spacing-xl);
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
    padding-left: var(--spacing-xl);
}

.timeline-dot {
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--color-brand-blue);
    border-radius: 50%;
    top: 0;
}

.timeline-item:nth-child(odd) .timeline-dot {
    right: -10px;
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -10px;
}

.timeline-year {
    font-size: var(--font-size-panel-title);
    font-weight: 700;
    color: var(--color-brand-blue);
    margin-bottom: var(--spacing-xs);
}

.timeline-title {
    font-size: var(--font-size-subheading);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.timeline-description {
    font-size: var(--font-size-body);
    color: var(--color-text-muted);
    line-height: var(--leading-normal);
}

.timeline-detail-list {
    margin: var(--spacing-xs) 0 0;
    padding-left: 1.25em;
    font-size: var(--font-size-body);
    color: var(--color-text-muted);
    line-height: var(--leading-relaxed);
    text-align: left;
    list-style-type: disc;
}

.timeline-detail-list li {
    margin-bottom: 0.5em;
}

.timeline-detail-list li:last-child {
    margin-bottom: 0;
}

/* 左侧节点整体右对齐时，列表块仍左对齐以保证可读 */
.timeline-item:nth-child(odd) .timeline-detail-list {
    display: inline-block;
    max-width: 100%;
}

/* 业务范围：图标容器层次稍加强，Glyph 更易辨认 */
.about-page .section .card-icon {
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.15),
        0 8px 24px rgba(15, 52, 96, 0.3);
}

.about-page .section .card-description-list {
    margin: 0;
    padding-left: 1.35em;
    color: var(--color-text-muted);
    line-height: var(--leading-loose);
    text-align: left;
    list-style-type: disc;
}

.about-page .section .card-description-list li {
    margin-bottom: 0.45em;
}

.about-page .section .card-description-list li:last-child {
    margin-bottom: 0;
}

.about-page .section .card .card-title {
    text-align: left;
}

/* 愿景与使命 */
.vision-mission-section {
    padding: var(--spacing-xl) 0;
    background: var(--color-white);
}

.vision-mission-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.vision-card,
.mission-card,
.values-card {
    background: var(--gradient-surface-dark);
    color: var(--color-white);
    border-radius: 12px;
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.vision-icon,
.mission-icon,
.values-icon {
    width: 88px;
    height: 88px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.vision-icon .ad-icon,
.mission-icon .ad-icon,
.values-icon .ad-icon {
    color: var(--color-primary-blue);
}

.vision-title,
.mission-title,
.values-title {
    font-size: var(--font-size-panel-title);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-noble-yellow);
}

.vision-description,
.mission-description,
.values-description {
    font-size: var(--font-size-body);
    line-height: var(--leading-normal);
    opacity: 0.9;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .company-intro-header h1 {
        font-size: var(--font-size-h1-section-md);
        padding: 0 var(--spacing-xs);
    }
}

@media (max-width: 768px) {
    .company-intro-header h1 {
        font-size: var(--font-size-h2-page);
    }

    .company-intro-header .mission {
        font-size: var(--font-size-subheading);
    }

    .intro-block {
        padding: 20px 18px;
    }

    .intro-block__title {
        font-size: var(--font-size-tagline);
    }

    .intro-block__text {
        font-size: var(--font-size-body);
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item {
        width: 100%;
        left: 0 !important;
        padding-left: 60px !important;
        padding-right: 0 !important;
        text-align: left !important;
    }
    
    .timeline-dot {
        left: 20px !important;
        right: auto !important;
    }

    .timeline-year {
        font-size: var(--font-size-lead);
        line-height: 1.4;
    }
}