/* ============================================
   关于我们 - 子页面样式
   ============================================ */

:root {
    --about-primary: #FF6B35;
    --about-accent: #FFB627;
    --about-bg: #0A0E1A;
    --about-bg-light: #1A1F35;
    --about-border: rgba(255, 255, 255, 0.08);
    --about-text: #e0e0e0;
    --about-text-muted: #888;
    --about-radius: 12px;
    --about-radius-lg: 20px;
}

/* ============ 面包屑 ============ */
.breadcrumb-bar {
    background: var(--about-bg);
    border-bottom: 1px solid var(--about-border);
    padding: 16px 0;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--about-text-muted);
}

.breadcrumb a {
    color: var(--about-text-muted);
    text-decoration: none;
    transition: color 0.2s;
}

.breadcrumb a:hover {
    color: var(--about-primary);
}

.breadcrumb .sep {
    color: #555;
}

.breadcrumb .current {
    color: var(--about-primary);
    font-weight: 500;
}

/* ============ 顶部 Banner ============ */
.about-hero-sub {
    padding: 80px 0 60px;
    background: linear-gradient(135deg, var(--about-bg) 0%, var(--about-bg-light) 100%);
    text-align: center;
    border-bottom: 1px solid var(--about-border);
}

.about-hero-sub h1 {
    font-size: 2.8rem;
    font-weight: 700;
    margin: 0 0 12px;
    color: #fff;
}

.about-hero-sub p {
    font-size: 1.1rem;
    color: var(--about-text-muted);
    margin: 0;
}

/* ============ 主体布局 ============ */
.about-sub-wrap {
    padding: 60px 0 100px;
    background: var(--about-bg);
}

.about-sub-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 40px;
    align-items: start;
}

/* ============ 左侧子导航 ============ */
.about-sub-nav {
    background: var(--about-bg-light);
    border: 1px solid var(--about-border);
    border-radius: var(--about-radius-lg);
    padding: 12px;
    position: sticky;
    top: 20px;
}

.about-sub-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.about-sub-nav li a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    color: var(--about-text);
    text-decoration: none;
    border-radius: var(--about-radius);
    font-size: 0.95rem;
    transition: all 0.2s;
}

.about-sub-nav li a:hover {
    background: rgba(255, 107, 53, 0.08);
    color: var(--about-primary);
}

.about-sub-nav li.active a {
    background: linear-gradient(135deg, var(--about-primary), var(--about-accent));
    color: #fff;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

.about-sub-nav .icon {
    font-size: 1.3rem;
    width: 24px;
    text-align: center;
}

/* ============ 右侧内容容器 ============ */
.about-sub-content {
    min-height: 400px;
    color: var(--about-text);
    line-height: 1.7;
}

/* ============ 公司简介 ============ */
.overview-hero {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 40px;
    margin-bottom: 50px;
}

.overview-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--about-primary);
    margin: 0 0 20px;
}

.overview-desc {
    font-size: 1.05rem;
    color: var(--about-text);
    line-height: 1.8;
    margin: 0;
}

.overview-hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.overview-hero-visual img {
    max-width: 100%;
    border-radius: var(--about-radius-lg);
}

.overview-placeholder {
    width: 100%;
    aspect-ratio: 4/3;
    background: linear-gradient(145deg, var(--about-bg-light), var(--about-bg));
    border: 1px solid var(--about-border);
    border-radius: var(--about-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8rem;
}

.overview-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.stat-card {
    background: var(--about-bg-light);
    border: 1px solid var(--about-border);
    border-radius: var(--about-radius-lg);
    padding: 30px 20px;
    text-align: center;
    transition: all 0.3s;
}

.stat-card:hover {
    transform: translateY(-4px);
    border-color: var(--about-primary);
    box-shadow: 0 8px 24px rgba(255, 107, 53, 0.15);
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--about-primary);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--about-text-muted);
}

/* ============ 发展历程 ============ */
.history-timeline {
    position: relative;
    padding-left: 32px;
}

.history-timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--about-border);
}

.history-item {
    position: relative;
    margin-bottom: 32px;
}

.history-item::before {
    content: '';
    position: absolute;
    left: -32px;
    top: 8px;
    width: 16px;
    height: 16px;
    background: var(--about-primary);
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--about-bg), 0 0 0 5px var(--about-primary);
}

.history-year {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--about-primary);
    margin-bottom: 8px;
}

.history-card {
    background: var(--about-bg-light);
    border: 1px solid var(--about-border);
    border-radius: var(--about-radius);
    padding: 20px 24px;
}

.history-card h3 {
    margin: 0 0 8px;
    font-size: 1.15rem;
    color: #fff;
}

.history-card p {
    margin: 0;
    color: var(--about-text-muted);
    font-size: 0.95rem;
}

/* ============ 企业文化 ============ */
.culture-block {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 30px;
    align-items: center;
    background: var(--about-bg-light);
    border: 1px solid var(--about-border);
    border-radius: var(--about-radius-lg);
    padding: 40px;
    margin-bottom: 24px;
}

.culture-icon-box {
    font-size: 5rem;
    text-align: center;
}

.culture-text h3 {
    margin: 0 0 12px;
    font-size: 1.5rem;
    color: var(--about-primary);
}

.culture-text p {
    margin: 0;
    color: var(--about-text);
    font-size: 1rem;
    line-height: 1.8;
}

.culture-values {
    background: var(--about-bg-light);
    border: 1px solid var(--about-border);
    border-radius: var(--about-radius-lg);
    padding: 40px;
    margin-top: 24px;
}

.culture-section-title {
    margin: 0 0 24px;
    font-size: 1.5rem;
    color: var(--about-primary);
    text-align: center;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.value-item {
    background: var(--about-bg);
    border: 1px solid var(--about-border);
    border-radius: var(--about-radius);
    padding: 24px 16px;
    text-align: center;
    transition: all 0.3s;
}

.value-item:hover {
    transform: translateY(-4px);
    border-color: var(--about-primary);
}

.value-icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
}

.value-name {
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
}

/* ============ 荣誉资质 ============ */
.honors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 24px;
}

.honor-card {
    background: var(--about-bg-light);
    border: 1px solid var(--about-border);
    border-radius: var(--about-radius-lg);
    padding: 20px;
    text-align: center;
    transition: all 0.3s;
}

.honor-card:hover {
    transform: translateY(-4px);
    border-color: var(--about-primary);
    box-shadow: 0 8px 24px rgba(255, 107, 53, 0.15);
}

.honor-image {
    aspect-ratio: 4/3;
    background: var(--about-bg);
    border-radius: var(--about-radius);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.honor-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.honor-placeholder {
    font-size: 4rem;
}

.honor-meta {
    margin-bottom: 8px;
}

.honor-year {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(255, 107, 53, 0.15);
    color: var(--about-primary);
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
}

.honor-title {
    margin: 0 0 8px;
    font-size: 1rem;
    color: #fff;
}

.honor-desc {
    margin: 0;
    font-size: 0.85rem;
    color: var(--about-text-muted);
}

/* ============ 团队介绍 ============ */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 24px;
}

.team-card {
    background: var(--about-bg-light);
    border: 1px solid var(--about-border);
    border-radius: var(--about-radius-lg);
    padding: 30px 20px;
    text-align: center;
    transition: all 0.3s;
}

.team-card:hover {
    transform: translateY(-4px);
    border-color: var(--about-primary);
    box-shadow: 0 8px 24px rgba(255, 107, 53, 0.15);
}

.team-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin: 0 auto 16px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--about-primary), var(--about-accent));
    display: flex;
    align-items: center;
    justify-content: center;
}

.team-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar-placeholder {
    font-size: 3rem;
    color: #fff;
}

.team-name {
    margin: 0 0 6px;
    font-size: 1.1rem;
    color: #fff;
}

.team-position {
    color: var(--about-primary);
    font-size: 0.9rem;
    margin-bottom: 12px;
    font-weight: 500;
}

.team-bio {
    margin: 0;
    font-size: 0.85rem;
    color: var(--about-text-muted);
    line-height: 1.6;
}

/* ============ 联系我们 ============ */
/* 严格限定到 .contact-info 容器,避免污染 footer 中的 .contact-item / .contact-icon */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.contact-info {
    background: var(--about-bg-light);
    border: 1px solid var(--about-border);
    border-radius: var(--about-radius-lg);
    padding: 32px;
}

.contact-info .contact-company {
    margin: 0 0 24px;
    font-size: 1.4rem;
    color: #fff;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--about-border);
}

.contact-info .contact-item {
    display: grid;
    grid-template-columns: 48px 1fr;
    gap: 16px;
    align-items: start;
    margin-bottom: 20px;
}

.contact-info .contact-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 107, 53, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.contact-info .contact-label {
    font-size: 0.8rem;
    color: var(--about-text-muted);
    margin-bottom: 4px;
}

.contact-info .contact-value {
    font-size: 0.95rem;
    color: #fff;
    word-break: break-word;
}

.contact-info .contact-value a {
    color: var(--about-primary);
    text-decoration: none;
}

.contact-info .contact-value a:hover {
    text-decoration: underline;
}

.contact-map {
    border-radius: var(--about-radius-lg);
    overflow: hidden;
    min-height: 400px;
    background: var(--about-bg-light);
    border: 1px solid var(--about-border);
    position: relative;
    display: flex;
    flex-direction: column;
}

/* 缩略地图(自绘 SVG) */
.map-thumb {
    width: 100%;
    aspect-ratio: 1 / 1;
    max-height: 360px;
    background: var(--about-bg);
    overflow: hidden;
    border-bottom: 1px solid var(--about-border);
}
.map-thumb svg {
    display: block;
    width: 100%;
    height: 100%;
}

/* 标记名提示 */
.map-prompt {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: linear-gradient(135deg, rgba(255,107,53,0.08) 0%, transparent 100%);
    border-bottom: 1px solid var(--about-border);
}
.map-prompt-icon {
    font-size: 1.8rem;
    flex-shrink: 0;
}
.map-prompt-text strong {
    display: block;
    color: #fff;
    font-size: 1.05rem;
    margin-bottom: 4px;
}
.map-prompt-text p {
    color: var(--about-text-muted);
    font-size: 0.85rem;
    margin: 0;
    line-height: 1.4;
}

/* 地图跳转按钮 */
.map-launchers {
    padding: 18px 20px;
    background: var(--about-bg-light);
}
.map-launchers-label {
    display: block;
    color: var(--about-text-muted);
    font-size: 0.8rem;
    margin-bottom: 10px;
    text-align: center;
    letter-spacing: 0.05em;
}
.map-launchers-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}
.map-launcher {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 12px 8px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--about-border);
    border-radius: 10px;
    color: var(--about-text);
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
}
.map-launcher:hover {
    background: rgba(255, 107, 53, 0.12);
    border-color: var(--about-primary);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.2);
}
.launcher-icon {
    font-size: 1.3rem;
    line-height: 1;
}
.launcher-name {
    font-size: 0.75rem;
    font-weight: 500;
}
@media (max-width: 480px) {
    .map-launchers-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Fallback(当旧版被引用时,隐藏之) */
.contact-map > iframe.contact-map-iframe {
    display: none;
}
.contact-map-fallback {
    display: none;
}

.map-placeholder {
    height: 100%;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--about-text-muted);
}

.map-placeholder > .emoji,
.map-placeholder > div {
    font-size: 5rem;
    margin-bottom: 16px;
}

.map-placeholder p {
    margin: 0;
    font-size: 0.95rem;
}

/* ============ 底部联系我们 CTA ============
 * 与首页 .cta-section 视觉一致(dark mode + 渐变 + 单一 CTA)
 * 所有关于我们的子页面(overview/history/culture/honors/team)统一底部
 */
.about-contact-cta {
    position: relative;
    overflow: hidden;
    padding: 80px 0;
    background: linear-gradient(135deg, var(--about-bg-light) 0%, var(--about-bg) 100%);
    border-top: 1px solid var(--about-border);
}
.about-contact-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 50% 50%, rgba(255, 107, 53, 0.12) 0%, transparent 60%);
    pointer-events: none;
}

.about-contact-cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
    padding: 20px;
}

.about-contact-cta .cta-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(255, 107, 53, 0.12);
    border: 1px solid rgba(255, 107, 53, 0.3);
    border-radius: 20px;
    color: var(--about-primary);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    margin-bottom: 24px;
    text-transform: uppercase;
}

.about-contact-cta h2 {
    font-size: clamp(1.7rem, 4vw, 2.4rem);
    font-weight: 800;
    margin-bottom: 16px;
    color: #fff;
    line-height: 1.3;
}

.about-contact-cta p {
    color: var(--about-text-muted);
    font-size: 1rem;
    margin-bottom: 32px;
    line-height: 1.6;
}

.about-contact-cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* 继承首页按钮样式: .btn-primary / .btn-secondary */
.about-contact-cta .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: linear-gradient(135deg, var(--about-primary) 0%, var(--about-accent) 100%);
    border: none;
    border-radius: 12px;
    color: #fff;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    box-shadow: 0 8px 24px rgba(255, 107, 53, 0.3);
}
.about-contact-cta .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(255, 107, 53, 0.4);
}
.about-contact-cta .btn-primary .arrow {
    transition: transform 0.3s;
}
.about-contact-cta .btn-primary:hover .arrow {
    transform: translateX(4px);
}

.about-contact-cta .btn-secondary {
    display: inline-flex;
    align-items: center;
    padding: 14px 32px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    color: #fff;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s;
}
.about-contact-cta .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: var(--about-primary);
    color: var(--about-primary);
}

@media (max-width: 640px) {
    .about-contact-cta-buttons {
        flex-direction: column;
        width: 100%;
    }
    .about-contact-cta .btn-primary,
    .about-contact-cta .btn-secondary {
        width: 100%;
        justify-content: center;
    }
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
    .about-sub-layout {
        grid-template-columns: 1fr;
    }

    .about-sub-nav {
        position: static;
    }

    .about-sub-nav ul {
        flex-direction: row;
        overflow-x: auto;
    }

    .about-sub-nav li {
        flex-shrink: 0;
    }

    .overview-hero,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .overview-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .about-hero-sub h1 {
        font-size: 2rem;
    }

    .overview-stats,
    .values-grid {
        grid-template-columns: 1fr;
    }

    .culture-block {
        grid-template-columns: 1fr;
        text-align: center;
    }
}