/* ===== 关于我们 - 长页面样式 ===== */

/* 页面整体布局 */
.about-page-container {
    display: flex;
    gap: 40px;
    position: relative;
}

/* 侧边导航 */
.about-sidebar {
    width: 220px;
    flex-shrink: 0;
    position: sticky;
    top: 40px;
    max-height: calc(100vh - 80px);
    overflow-y: auto;
}

.sidebar-nav {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 20px;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.sidebar-nav-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--brand-color);
}

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

.sidebar-nav-item {
    margin-bottom: 4px;
}

.sidebar-nav-link {
    display: block;
    padding: 12px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 8px;
    transition: var(--transition);
    font-size: 15px;
}

.sidebar-nav-link:hover {
    background: var(--bg-light);
    color: var(--brand-color);
}

.sidebar-nav-link.active {
    background: var(--gradient-brand);
    color: white;
    box-shadow: 0 2px 8px rgba(114, 112, 83, 0.3);
}

/* 主内容区 */
.about-main {
    flex: 1;
    min-width: 0;
}

/* 内容区块 */
.about-section {
    background: var(--bg-white);
    border-radius: 16px;
    padding: 50px;
    margin-bottom: 30px;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
    scroll-margin-top: 100px;
}

.about-section-title {
    font-size: 26px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--gradient-brand);
    position: relative;
}

.about-section-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: var(--brand-color);
}

.about-section-content {
    color: var(--text-secondary);
    font-size: 16px;
    line-height: 1.8;
}

.about-section-content p {
    margin-bottom: 16px;
}

.about-section-content p:last-child {
    margin-bottom: 0;
}

/* 数据统计网格 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 32px;
}

.stat-item {
    background: linear-gradient(135deg, rgba(114, 112, 83, 0.08) 0%, rgba(114, 112, 83, 0.12) 100%);
    border-radius: 12px;
    padding: 28px 20px;
    text-align: center;
    border: 1px solid rgba(114, 112, 83, 0.15);
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(114, 112, 83, 0.2);
}

.stat-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--brand-color);
    margin-bottom: 8px;
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 15px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* 业务理念与价值观区块 */
.philosophy-section,
.values-section {
    margin-top: 24px;
    padding: 24px;
    background: var(--bg-light);
    border-radius: 12px;
    border-left: 4px solid var(--brand-color);
}

.philosophy-section h3,
.values-section h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--brand-dark);
    margin-bottom: 12px;
}

.philosophy-section p,
.values-section p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin: 0;
}

/* 愿景使命区块 */
.vision-mission-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 24px;
}

.vision-mission-card {
    background: linear-gradient(135deg, rgba(114, 112, 83, 0.05) 0%, rgba(114, 112, 83, 0.1) 100%);
    border-radius: 12px;
    padding: 28px;
    border-left: 4px solid var(--brand-color);
}

.vision-mission-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--brand-dark);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.vision-mission-card h3::before {
    content: '◆';
    color: var(--brand-color);
}

/* 价值观区块 */
.values-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 24px;
}

.value-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: var(--bg-light);
    border-radius: 10px;
    transition: var(--transition);
}

.value-item:hover {
    background: rgba(114, 112, 83, 0.06);
    transform: translateX(4px);
}

.value-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-brand);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.value-content h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.value-content p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.6;
    margin: 0;
}

/* 发展历程时间轴 */
.timeline {
    position: relative;
    padding: 30px 0 40px 0;
    margin-top: 24px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 140px;
    top: 20px;
    bottom: 20px;
    width: 3px;
    background: linear-gradient(180deg, var(--primary-color), var(--brand-color));
}

.timeline-item {
    position: relative;
    padding-left: 180px;
    padding-bottom: 50px;
    min-height: 80px;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-year {
    position: absolute;
    left: 0;
    top: 0;
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--brand-color) 100%);
    color: white;
    padding: 10px 24px;
    border-radius: 28px;
    font-weight: 600;
    font-size: 15px;
    white-space: nowrap;
    box-shadow: 0 4px 15px rgba(114, 112, 83, 0.3);
    z-index: 2;
}

.timeline-dot {
    position: absolute;
    left: 129px;
    top: 18px;
    width: 24px;
    height: 24px;
    background: var(--primary-color);
    border: 4px solid var(--bg-white);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(114, 112, 83, 0.2);
    z-index: 3;
}
    position: relative;
    padding-left: 70px;
    padding-top: 50px;
    padding-bottom: 40px;
}

.timeline-dot {
    position: absolute;
    left: 50%;
    top: 4px;
    transform: translateX(-50%);
    width: 27px;
    height: 27px;
    background: var(--primary-color);
    border: 4px solid var(--bg-white);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(114, 112, 83, 0.2);
    z-index: 1;
}

.timeline-content h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.timeline-content p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.8;
    margin: 0;
}

.timeline-content p:not(:last-child) {
    margin-bottom: 12px;
}

.timeline-content strong {
    color: var(--brand-dark);
    font-weight: 600;
}

/* 荣誉资质图片 */
.honors-image-wrapper {
    margin-top: 32px;
    text-align: center;
}

.honors-image {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* 荣誉资质 */
.honors-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 24px;
}

.honor-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 20px;
    background: var(--bg-light);
    border-radius: 10px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.honor-item:hover {
    background: rgba(114, 112, 83, 0.06);
    border-color: rgba(114, 112, 83, 0.15);
    transform: translateY(-2px);
}

.honor-icon {
    width: 44px;
    height: 44px;
    background: var(--gradient-brand);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.honor-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.honor-content p {
    color: var(--text-secondary);
    font-size: 14px;
    margin: 0;
}

/* 联系我们 */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    margin-top: 24px;
}

.contact-left,
.contact-right {
    padding: 0;
}

/* 左右分隔线 */
.contact-left {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-left::after {
    content: '';
    position: absolute;
    right: -16px;
    top: 50%;
    transform: translateY(-50%);
    height: 60%;
    width: 1px;
    background: linear-gradient(180deg, transparent, var(--border-color), transparent);
}

/* 联系信息列表 */
.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-info-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.contact-info-label {
    font-size: 14px;
    font-weight: 500;
    line-height: 20px;
    color: #606266;
}

.contact-info-value {
    font-size: 14px;
    font-weight: 400;
    line-height: 20px;
    color: #909399;
}

/* 咨询CTA内容 */
.consult-cta-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    height: 100%;
    padding: 40px 32px;
    background-image: url('../images/联系我们背景.svg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    border-radius: 16px;
    min-height: 280px;
}

.consult-heading {
    font-size: 20px;
    font-weight: 700;
    line-height: 28px;
    color: #303133;
    margin-bottom: 12px;
}

.consult-subtitle {
    font-size: 14px;
    font-weight: 400;
    line-height: 20px;
    color: #909399;
    margin-bottom: 32px;
}

.consult-title {
    color: var(--text-primary);
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 32px;
    max-width: 280px;
}

.consult-cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 48px;
    background: #303133;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(48, 49, 51, 0.2);
}

.consult-cta-btn:hover {
    background: #1a1a1a;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(48, 49, 51, 0.3);
}

.consult-cta-features {
    display: flex;
    gap: 20px;
    margin-bottom: 28px;
}

.cta-feature {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.cta-icon {
    font-size: 28px;
}

.cta-feature span:last-child {
    font-size: 13px;
    color: var(--text-secondary);
}

.cta-arrow {
    font-size: 20px;
    transition: transform 0.3s ease;
}

.consult-cta-btn:hover .cta-arrow {
    transform: translateX(4px);
}

.consult-tip {
    margin-top: 20px;
    font-size: 13px;
    color: var(--text-secondary);
}

.contact-form-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 15px;
    transition: var(--transition);
    background: var(--bg-white);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--brand-color);
    box-shadow: 0 0 0 3px rgba(114, 112, 83, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-submit-btn {
    width: 100%;
    padding: 14px;
    background: var(--gradient-brand);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.form-submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(114, 112, 83, 0.3);
}

/* 响应式 */
@media (max-width: 1024px) {
    .about-page-container {
        flex-direction: column;
    }

    .about-sidebar {
        width: 100%;
        position: static;
        max-height: none;
    }

    .sidebar-nav {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        padding: 16px;
    }

    .sidebar-nav-title {
        width: 100%;
        margin-bottom: 8px;
    }

    .sidebar-nav-list {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }

    .sidebar-nav-item {
        margin-bottom: 0;
    }

    .vision-mission-grid,
    .honors-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .contact-left::after {
        display: none;
    }

    .contact-info-list {
        gap: 20px;
    }

    .contact-info-label {
        font-size: 14px;
    }

    .contact-info-value {
        font-size: 14px;
    }

    .consult-cta-content {
        padding: 32px 24px;
        min-height: 240px;
    }

    .consult-heading {
        font-size: 18px;
    }

    .consult-subtitle {
        font-size: 13px;
    }

    .consult-title {
        font-size: 14px;
        margin-bottom: 24px;
        max-width: 240px;
    }

    .consult-cta-btn {
        padding: 12px 36px;
        font-size: 15px;
    }

    .about-section {
        padding: 35px 25px;
    }

    /* Timeline styles for tablet */
    .timeline::before {
        left: 100px;
    }

    .timeline-item {
        padding-left: 130px;
    }

    .timeline-year {
        padding: 8px 18px;
        font-size: 14px;
    }

    .timeline-dot {
        left: 89px;
    }
}

@media (max-width: 768px) {
    .about-section {
        padding: 28px 20px;
    }

    .about-section-title {
        font-size: 22px;
    }

    .about-section-content {
        font-size: 15px;
    }

    .timeline::before {
        left: 12px;
        top: 50px;
    }

    .timeline-item {
        padding-left: 50px;
        padding-top: 10px;
    }

    .timeline-year {
        position: relative;
        left: auto;
        top: auto;
        display: inline-block;
        margin-bottom: 12px;
        font-size: 13px;
        padding: 6px 16px;
    }

    .timeline-dot {
        left: 0;
        top: 6px;
        width: 20px;
        height: 20px;
    }

    .vision-mission-card,
    .value-item,
    .honor-item {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .about-section {
        padding: 24px 16px;
    }

    .about-section-title {
        font-size: 20px;
    }

    .sidebar-nav-link {
        padding: 10px 14px;
        font-size: 14px;
    }

    .consult-cta-content {
        padding: 28px 20px;
        min-height: 220px;
    }

    .consult-heading {
        font-size: 18px;
        margin-bottom: 10px;
    }

    .consult-subtitle {
        font-size: 13px;
        margin-bottom: 24px;
    }

    .consult-title {
        font-size: 13px;
        max-width: 220px;
    }

    .consult-cta-btn {
        padding: 12px 32px;
        font-size: 14px;
    }
}