.banner-desc-box {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.banner-desc-box-title {
    color: #fff;
    font-size: 48px;
    font-weight: bold;
    text-align: center;
}

.banner-desc-box-content {
    color: #fff;
    font-size: 18px;
}

/* Breadcrumb Navigation Styles */
.breadcrumb-nav {
    padding: 20px 0;
    background-color: #fff;
}

.breadcrumb-container {
    max-width: 1700px;
    margin: 0 auto;
    padding: 0 20px;
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: 10px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    color: #666;
    font-size: 14px;
}

.breadcrumb-item:not(:last-child)::after {
    content: '>';
    margin-left: 10px;
    color: #999;
}

.breadcrumb-item a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb-item a:hover {
    color: #222;
}

.breadcrumb-item.active {
    color: #222;
    font-weight: 500;
}

.home-icon {
    display: flex;
    align-items: center;
}

.home-icon img {
    width: 16px;
    height: 16px;
}

/* Mobile Styles */
@media (max-width: 767px) {
    .breadcrumb-nav {
        padding: 15px 0;
    }

    .breadcrumb-container {
        padding: 0 15px;
    }

    .breadcrumb-item {
        font-size: 12px;
    }

    .breadcrumb-item:not(:last-child)::after {
        margin-left: 8px;
    }

    .home-icon img {
        width: 14px;
        height: 14px;
    }
}

.breadcrumb-item+.breadcrumb-item::before {
    display: none;
}

.breadcrumb {
    background: none;
    padding: 0;
    margin: 0;
}

/* General Styles */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Hero Section */
.hero-section-product {
    background-color: #fff;
    padding: 60px 20px;
}

.hsp-container {
    max-width: 1680px;
    margin: 0 auto;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
}

.hsp-content {
    max-width: 760px;
}

@media (min-width: 768px) and (max-width: 1365px) {
    .hsp-content {
        max-width: 50%;
    }
}

.hsp-image {
    flex: 1;
}

.hsp-title {
    font-size: 38px;
    font-weight: bold;
    color: #1a1a1a;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hsp-description {
    font-size: 18px;
    color: #555;
    margin-bottom: 30px;
    line-height: 1.6;
}

.hsp-button {
    display: inline-block;
    background-color: #D9D9D9;
    /* 主题红色 */
    color: #000;
    padding: 15px 30px;
    font-size: 16px;
    border-radius: 12px;
    text-transform: uppercase;
    transition: background-color 0.3s ease;
    font-weight: 400;
}

/* .hsp-button:hover {
    background-color: #555;
    /* 深一点的红色 */
/* color: #fff;
} */

*/ .hsp-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hsp-image img {
    max-width: 100%;
    border-radius: 8px;
}

/* Product Listing Section */
.product-listing-section {
    padding: 60px 20px;
}

.pls-container {
    max-width: 1680px;
    margin: 0 auto;
    display: flex;
    gap: 30px;
}

.pls-sidebar {
    flex: 0 0 280px;
    /* 固定宽度侧边栏 */
    background-color: #fff;
    padding: 0 20px 0 0;
    align-self: flex-start;
    /* 确保侧边栏从顶部开始 */
}

@media (min-width: 768px) and (max-width: 1365px) {
    .pls-sidebar {
        flex: 0 0 25%;
    }
}

.pls-main-title-sidebar {
    font-size: 32px;
    font-weight: bold;
    color: #1a1a1a;
    margin-top: 0;
    /* 移除默认的上边距 */
    margin-bottom: 10px;
}

.pls-sidebar-description {
    font-size: 16px;
    color: #666;
    line-height: 1.5;
    margin-bottom: 20px;
}

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

.pls-category-item {
    margin-bottom: 20px;
    font-size: 16px;
    cursor: pointer;
    position: relative;
    color: #999;
}

.pls-category-item>span:first-child {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 18px;
    /* The arrow is a sibling img, not a child of this span */
}

.pls-category-item a:hover {
    color: #000;
}

.pls-category-item.active>span:first-child {
    color: #000;
    font-weight: 400;
    /* Changed from bold in original to match general style */
    font-size: 18px;
    font-weight: 700;
}

.pls-category-item>span:first-child:hover {
    /* background-color: #f0f0f0; */
}

.pls-category-item.active>span:first-child:hover {
    /* background-color: #c4000f; */
}

.pls-arrow {
    width: 27px;
    /* Assuming this is the desired size */
    height: 27px;
    transition: transform 0.3s ease;
    position: absolute;
    right: 0;
    top: 0;
    /* Adjust top if not perfectly aligned with span */
    display: none;
    /* Hidden by default */
    transform: rotate(0deg);
    /* Default rotation - assuming arrow.svg points right or down */
}

.pls-arrow svg path {
    fill: #999;
}

.pls-category-item.has-submenu.open>.pls-arrow svg path {
    fill: #000;
}

/* Show arrow only if item has a submenu */
.pls-category-item.has-submenu>.pls-arrow {
    display: inline-block;
    /* Or block, depending on layout needs */
}

/* Rotate arrow when item with submenu is open */
.pls-category-item.has-submenu.open>.pls-arrow {
    transform: rotate(180deg);
    /* Rotates to point upwards */
}

.pls-sub-categories {
    list-style: none;
    padding-left: 0;
    /* 子分类缩进 */
    margin-top: 5px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.pls-category-item.active .pls-sub-categories {
    max-height: 500px;
    /* 根据内容调整，确保能完全显示 */
}

.pls-sub-category-item {
    padding: 8px 15px;
    font-size: 14px;
    color: #555;
    border-radius: 4px;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.pls-sub-category-item:hover {
    /* background-color: #f0f0f0; */
    color: #1a1a1a;
}

.pls-sub-category-item.active {
    /* background-color: #fde6e8; */
    /* 淡红色背景 */
    color: #000;
    font-weight: bold;
}

.pls-content-area {
    flex: 1;
}

.pls-product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.pls-product-card {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pls-product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.pls-image-placeholder {
    width: 100%;
    height: 220px;
    /* 根据实际图片比例调整 */
    background-color: #e9ecef;
    /* 占位符背景色 */
    display: flex;
    justify-content: center;
    align-items: center;
    color: #adb5bd;
    font-size: 14px;
}

/* 如果有图片，可以替换为以下样式 */

.pls-product-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}


.pls-product-name {
    padding: 15px;
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin: 0;
    line-height: 1.4;
    min-height: 60px;
    /* 确保标题区域有一定高度 */
    text-align: center;
}

.pls-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 30px;
}

.pls-pagination ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pls-pagination li a,
.pls-pagination li span {
    display: block;
    padding: 10px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    color: #555;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.pls-pagination li a:hover {
    background-color: #f0f0f0;
    border-color: #ccc;
}

.pls-pagination li a.active {
    background-color: #e50012;
    color: #fff;
    border-color: #e50012;
    font-weight: bold;
}

.pls-pagination li span {
    border: none;
    padding: 10px 5px;
}

.pls-pagination .next {
    display: flex;
    align-items: center;
}

.pagination-arrow {
    display: inline-block;
    width: 0;
    height: 0;
    border-top: 4px solid transparent;
    border-bottom: 4px solid transparent;
    border-left: 5px solid #555;
    /* 默认箭头颜色 */
    margin-left: 8px;
    transition: border-left-color 0.3s ease;
}

.pls-pagination li a.active .pagination-arrow,
.pls-pagination li a:hover .pagination-arrow {
    /* border-left-color: #e50012; */
    /* 如果active时也需要变色 */
}

.pls-pagination li a.active .pagination-arrow {
    border-left-color: #fff;
    /* Active 状态下箭头颜色 */
}

/* Why Choose Brothersbox Section */
.why-choose-section {
    background-color: #f6f6f6;
    padding: 180px 20px 80px;
}

.wcs-container {
    max-width: 1680px;
    margin: 0 auto;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 60px;
}

.wcs-content {
    flex: 1;
    max-width: 650px;
}

.wcs-title {
    font-size: 36px;
    font-weight: bold;
    color: #1a1a1a;
    margin-bottom: 15px;
}

.wcs-description {
    font-size: 16px;
    color: #555;
    line-height: 1.6;
    margin-bottom: 30px;
}

.wcs-features {
    list-style: none;
    padding: 0;
    margin: 0 0 40px 0;
}

.wcs-feature-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
}

.wcs-feature-icon {
    width: 40px;
    /* 调整图标大小 */
    height: 40px;
    margin-right: 20px;
    object-fit: contain;
}

.wcs-feature-text h5 {
    font-size: 18px;
    font-weight: bold;
    color: #1a1a1a;
    margin: 0 0 5px 0;
}

.wcs-feature-text p {
    font-size: 15px;
    color: #555;
    line-height: 1.5;
    margin: 0;
}

.wcs-button {
    display: inline-block;
    background-color: #d4d4d4;
    color: #000;
    padding: 15px 35px;
    font-size: 16px;
    border-radius: 12px;
    text-transform: uppercase;
    transition: background-color 0.3s ease;
    font-weight: 400;
}

/* .wcs-button:hover {
    background-color: #555;
    color: #fff;
} */

.wcs-image-gallery {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.wcs-image-grid-item:nth-child(2n) {
    margin-top: -100px;
}

@media (max-width: 767px) {
    .wcs-image-grid-item:nth-child(2n) {
        margin-top: -50px;
    }
}

.wcs-image-grid-item img {
    width: 100%;
    height: auto;
    aspect-ratio: 1 / 1;
    /* 保持图片为正方形 */
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* Testimonials Section - Product Page */
.testimonials-section-product {
    background-color: #f2f2f2;
    /* Slightly different background */
    padding: 80px 20px;
    overflow: hidden;
}

.tsp-container {
    max-width: 1680px;
    /* Testimonials can be slightly narrower */
    margin: 0 auto;
    padding: 0;
    text-align: center;
}

.tsp-title {
    font-size: 36px;
    font-weight: bold;
    color: #1a1a1a;
    margin-bottom: 15px;
}

.tsp-subtitle {
    font-size: 18px;
    color: #555;
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.testimonials-swiper-product {
    width: 100%;
    padding-top: 20px;
    padding-bottom: 60px;
    /* Space for navigation */
}

.testimonials-swiper-product .swiper-wrapper {
    align-items: stretch;
}

.tsp-slide {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.07);
    text-align: left;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: auto !important;
    align-self: stretch;
    /* Ensure consistent height */
}

.tsp-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 10px 10px 0 0;
}

.tsp-stars {
    color: #ffc107;
    /* Gold color for stars */
    font-size: 20px;
    padding: 10px;
}

.tsp-stars span {
    margin-right: 2px;
}

.tsp-quote {
    font-size: 16px;
    color: #333;
    line-height: 1.7;
    margin-bottom: 20px;
    flex-grow: 1;
    padding: 10px;
    /* Allows quote to take available space */
}

.tsp-customer {
    display: flex;
    align-items: center;
    padding: 10px;
    /* Pushes customer info to the bottom */
}

.tsp-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 15px;
}

.tsp-customer-details p {
    margin: 0;
    line-height: 1.4;
}

.tsp-customer-name {
    font-size: 16px;
    font-weight: bold;
    color: #1a1a1a;
}

.tsp-customer-company {
    font-size: 14px;
    color: #777;
}

/* Swiper Navigation for Testimonials */
.tsp-button-prev,
.tsp-button-next {
    color: #e50012;
    /* Theme red for navigation */
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.tsp-button-prev:hover,
.tsp-button-next:hover {
    background-color: #e50012;
    color: #fff;
}

.tsp-button-prev::after,
.tsp-button-next::after {
    font-size: 20px;
    font-weight: bold;
}

.tsp-button-prev {
    left: 10px;
}

.tsp-button-next {
    right: 10px;
}

/* CTA Section - Product Page */
.cta-section-product {
    padding: 80px 20px;
    text-align: center;
    background: rgba(217, 217, 217, 0.3);
}

.ctasp-container {
    max-width: 1680px;
    margin: 0 auto;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: space-around;
}

.ctasp-content {
    width: 60%;
    text-align: left;
}

.ctasp-title {
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 20px;
    line-height: 1.3;
}

.ctasp-description {
    font-size: 18px;
    color: #000;
    line-height: 1.7;
    margin-bottom: 30px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 300;
}

.ctasp-button {
    display: inline-block;
    background-color: #d9d9d9;
    color: #000;
    padding: 18px 40px;
    font-size: 16px;
    font-weight: bold;
    border-radius: 12px;
    text-transform: uppercase;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

/* .ctasp-button:hover {
    background-color: #000;
    color: #d9d9d9;
    transform: translateY(-2px);
} */

/* Responsive Adjustments */
@media (max-width: 1200px) {
    .hsp-title {
        font-size: 40px;
    }

    .wcs-container {
        gap: 40px;
    }

    .wcs-content {
        max-width: 550px;
    }

    .wcs-title,
    .tsp-title,
    .ctasp-title {
        font-size: 32px;
    }

    .pls-product-grid {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    }
}

@media (max-width: 992px) {
    .hsp-container {
        flex-direction: column;
        text-align: center;
        padding: 0 15px;
    }

    .hsp-content {
        margin-bottom: 30px;
        max-width: 100%;
    }

    .hsp-title {
        font-size: 36px;
    }

    .pls-container {
        flex-direction: column;
    }

    .pls-sidebar {
        flex: 0 0 auto;
        /* Allow sidebar to take natural width */
        width: 100%;
        margin-bottom: 30px;
    }

    .wcs-container {
        flex-direction: column;
    }

    .wcs-content {
        margin-bottom: 40px;
        text-align: center;
        max-width: 100%;
    }

    .wcs-feature-item {
        justify-content: center;
        text-align: left;
        /* Keep text left-aligned within item */
    }

    .wcs-image-gallery {
        grid-template-columns: repeat(2, 1fr);
        /* Keep 2 columns for images if space allows */
        max-width: 600px;
        /* Limit gallery width on smaller screens */
        margin: 0 auto;
    }

    .tsp-button-prev {
        left: 5px;
    }

    .tsp-button-next {
        right: 5px;
    }

    .pls-product-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
}

@media (max-width: 768px) {
    .hsp-title {
        font-size: 32px;
    }

    .hsp-description,
    .wcs-description,
    .tsp-subtitle,
    .ctasp-description {
        font-size: 15px;
    }

    .hsp-button,
    .wcs-button,
    .ctasp-button {
        padding: 12px 25px;
        font-size: 15px;
    }

    .wcs-title,
    .tsp-title,
    .ctasp-title {
        font-size: 28px;
    }

    .pls-main-title-sidebar {
        font-size: 20px;
    }

    .pls-product-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 20px;
    }

    .pls-product-name {
        font-size: 15px;
        min-height: 50px;
    }

    .pls-image-placeholder {
        height: 180px;
    }

    .tsp-slide {
        padding: 20px;
        min-height: auto;
        /* Allow height to adjust more freely */
    }

    .tsp-quote {
        font-size: 15px;
    }

    .tsp-button-prev,
    .tsp-button-next {
        width: 38px;
        height: 38px;
    }

    .tsp-button-prev::after,
    .tsp-button-next::after {
        font-size: 16px;
    }
}

@media (max-width: 576px) {

    .hero-section-product,
    .product-listing-section,
    .why-choose-section,
    .testimonials-section-product,
    .cta-section-product {
        padding: 40px 15px;
    }

    .hsp-title {
        font-size: 28px;
    }

    .wcs-title,
    .tsp-title,
    .ctasp-title {
        font-size: 24px;
    }

    .wcs-image-gallery {
        grid-template-columns: repeat(2, 1fr);
        /* Single column for images */
        gap: 15px;
    }

    .wcs-feature-icon {
        width: 30px;
        height: 30px;
        margin-right: 15px;
    }

    .wcs-feature-text h5 {
        font-size: 16px;
    }

    .wcs-feature-text p {
        font-size: 14px;
    }

    .pls-product-grid {
        grid-template-columns: 1fr;
        /* Single column for products */
        gap: 20px;
    }

    .pls-image-placeholder {
        height: 200px;
        /* Adjust for single column */
    }

    .pls-pagination ul {
        gap: 5px;
    }

    .pls-pagination li a,
    .pls-pagination li span {
        padding: 8px 10px;
        font-size: 14px;
    }

    .tsp-subtitle {
        margin-bottom: 30px;
    }

    .testimonials-swiper-product {
        padding-bottom: 50px;
    }
}

.pls-header {
    width: 100%;
    max-width: 1680px;
    margin: auto;
    padding: 20px 0;
}

.site-footer {
    background: #fff !important;
}

.pagination-container {
    padding: 0 15px;
}

/* FAQ Section Styles */
.faq-section {
    padding: 60px 20px;
    background-color: #fff;
    /* White background */
}

@media (max-width: 767px) {
    .faq-section {
        padding: 40px 15px;
    }
}

.faq-container {
    max-width: 1360px;
    /* Adjusted max-width as per request */
    margin: 0 auto;
    padding: 0;
}

.faq-main-title {
    font-size: 32px;
    font-weight: bold;
    color: #222;
    text-align: center;
    margin-bottom: 40px;
}

.faq-list {
    /* border-top: 1px solid #e0e0e0; */
}

.faq-item {
    /* border-bottom: 1px solid #e0e0e0; */
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    cursor: pointer;
}

.faq-question-title {
    font-size: 18px;
    font-weight: 500;
    color: #000;
    transition: font-weight 0.2s ease-in-out;
}

.faq-item .faq-question-title:hover {
    font-weight: 700;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    font-size: 16px;
    color: #555;
    line-height: 1.7;
    transition: max-height 0.35s ease-in-out;
}

.faq-answer p {
    margin: 0;
    padding-bottom: 20px;
    /* Padding only when open */
}

.faq-icon {
    width: 12px;
    flex-shrink: 0;
    margin-left: 15px;
    margin-bottom: 8px;
}

/* Responsive Adjustments for FAQ */
@media (max-width: 767px) {
    .faq-main-title {
        font-size: 28px;
    }

    .faq-question {
        font-size: 17px;
        padding: 18px 0;
    }

    .faq-answer {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .faq-main-title {
        font-size: 24px;
    }

    .faq-question {
        font-size: 16px;
        justify-content: space-between;
        align-items: center;
    }
}

.project-manage-section {
    padding: 80px 20px;
}

.project-manage-container {
    max-width: 1680px;
    /* Testimonials can be slightly narrower */
    margin: 0 auto;
    padding: 0;
    text-align: center;
}

/* ========================================
   Development History Timeline Styles
   ======================================== */

/**
 * 开发历史时间轴样式 - 使用Swiper轮播
 * @author XuZhenxing
 */
.timeline-section {
    padding: 120px 0;
    background-color: #fff;
}

.timeline-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.timeline-main-title {
    color: #222;
    font-size: 48px;
    font-weight: 700;
    margin: 0 0 80px 0;
    line-height: 1.2;
    letter-spacing: -0.5px;
}

.timeline-wrapper {
    position: relative;
}

.timeline-swiper-container {
    position: relative;
}

/* 时间轴导航点 - 使用绝对定位到文本区域上方 */
.timeline-navigation {
    position: absolute;
    top: 0px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    width:65%;
}

.timeline-dots {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 80px;
    position: relative;
    z-index: 2;
    transition: all 0.3s ease;
}

.timeline-dot {
    position: relative;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* .timeline-dot::before {
    content: '';
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #222;
    border: none;
    box-shadow: none;
    transition: all 0.3s ease;
    margin-bottom: 15px;
} */

/* .timeline-dot.active::before {
    width: 16px;
    height: 16px;
    background: #222;
    box-shadow: 0 0 0 3px #fff, 0 0 0 4px #222;
    transform: scale(1);
} */

@property --progress {
    syntax: '<percentage>';
    initial-value: 100%;
    inherits: false;
}

@keyframes countdown {
    to {
        --progress: 0%;
    }
}

.waiquan {
    width: 30px !important;
    height: 30px !important;
    border-radius: 50%;
    position: relative;
    background: conic-gradient(#000 var(--progress), #eee 0);
    /* animation: countdown 5s linear infinite; */
    animation: countdown 5s forwards;
}

.waiquan::before {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    right: 2px;
    bottom: 2px;
    background: #fff;
    border-radius: 50%;
    z-index: 1;
}

.waiquan::after {
    content: '';
    position: absolute;
    top: 5px;
    left: 5px;
    right: 5px;
    bottom: 5px;
    background: #000;
    border-radius: 50%;
    z-index: 1;
    margin: 4px;
}

.neiquan {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: #DFDFDF;
    /* position: absolute; */
    /* top: 50%; */
    /* left: 50%; */
    /* transform: translate(-50%, -50%); */
    z-index: 2;
}

.timeline-year {
    color: #999;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.timeline-dot.active .timeline-year {
    color: #222;
    font-weight: 700;
    font-size: 18px;
}

/* 时间轴连接线 - 移除进度效果 */
.timeline-line {
    position: absolute;
    top: 16px;
    left: 8px;
    right: 8px;
    height: 1px;
    background: #ddd;
    z-index: 1;
}

.timeline-up {
    width: 30px;
    height: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Swiper 容器 */
.timeline-swiper-container {
    position: relative;
    width: 100%;
}

.timeline-swiper {
    overflow: hidden;
    border-radius: 16px;
    width: 100%;
    height: auto;
}

.timeline-swiper .swiper-wrapper {
    align-items: stretch;
}

.timeline-slide {
    height: auto;
    display: flex;
    flex-direction: column;
}

.timeline-content {
    display: flex;
    flex-direction: row-reverse;
    align-items: center;
    gap: 80px;
    min-height: 500px;
    padding: 120px 60px 60px 60px;
    background: #fff;
    position: relative;
}

.timeline-text {
    flex: 1;
    max-width: 50%;
    text-align: left;
}

.timeline-title {
    color: #222;
    font-size: 36px;
    font-weight: 700;
    margin: 0 0 30px 0;
    line-height: 1.2;
}

.timeline-description {
    color: #666;
    font-size: 18px;
    line-height: 1.6;
    margin: 0;
    font-weight: 400;
}

.timeline-image {
    flex: 1;
    max-width: 50%;
}

.timeline-image-placeholder {
    width: 100%;
    height: 500px;
    background: #e5e5e5;
    border-radius: 12px;
    overflow: hidden;
}

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

/* 导航按钮 */
.timeline-nav-buttons {
    position: absolute;
    bottom: 40px;
    left: 60px;
    display: flex;
    gap: 20px;
    z-index: 10;
}

.timeline-nav-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: #F7F7F7;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    /* box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1); */
    transition: all 0.3s ease;
    color: #666;
}

.timeline-nav-btn:hover {
    background: #FF99D3;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(255, 153, 211, 0.3);
}

.timeline-nav-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.timeline-nav-btn:disabled:hover {
    background: rgba(255, 255, 255, 0.9);
    color: #666;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

/* ========================================
   Timeline Responsive Styles
   ======================================== */

/* 平板样式 (768px - 1366px) */
@media (min-width: 768px) and (max-width: 1366px) {
    .timeline-section {
        padding: 80px 0;
    }

    .timeline-main-title {
        font-size: 40px;
        margin-bottom: 60px;
    }

    .timeline-dots {
        gap: 50px;
    }

    .timeline-navigation {
        position: relative;
        width:100%;
        top: 40px;
        left: 0px;
        transform:none;
    }

    .timeline-content {
        gap: 50px;
        padding: 100px 40px 40px 40px;
        min-height: 400px;
    }

    .timeline-title {
        font-size: 28px;
        margin-bottom: 20px;
    }

    .timeline-description {
        font-size: 16px;
    }

    .timeline-image-placeholder {
        height: 280px;
    }

    .timeline-nav-buttons {
        bottom: 30px;
        left: 40px;
    }

    .timeline-nav-btn {
        width: 50px;
        height: 50px;
    }
}

/* 手机样式 (< 768px) */
@media (max-width: 767px) {
    .timeline-section {
        padding: 60px 0;
    }

    .timeline-container {
        padding: 0 15px;
    }

    .timeline-main-title {
        font-size: 32px;
        margin-bottom: 40px;
        text-align: center;
    }

    .timeline-navigation {
        width:100%;
        position: relative;
        margin-bottom: 30px;
    }

    .timeline-dots {
        gap: 30px;
        justify-content: center;
        flex-wrap: wrap;
    }

    .timeline-dot::before {
        width: 12px;
        height: 12px;
        margin-bottom: 10px;
    }

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

    .timeline-dot.active .timeline-year {
        font-size: 16px;
    }

    .timeline-line {
        display: none;
        top: 6px;
        left: 6px;
        right: 6px;
    }

    .timeline-content {
        flex-direction: column;
        gap: 30px;
        padding: 30px 20px;
        min-height: auto;
        text-align: center;
    }

    .timeline-text,
    .timeline-image {
        max-width: 100%;
        flex: none;
    }

    .timeline-image {
        width: 100%;
        order: 1;
    }

    .timeline-text {
        order: 2;
    }

    .timeline-title {
        font-size: 24px;
        margin-bottom: 20px;
    }

    .timeline-description {
        font-size: 16px;
        line-height: 1.5;
    }

    .timeline-image-placeholder {
        height: 250px;
        width: 100%;
    }

    .timeline-nav-buttons {
        position: relative;
        bottom: auto;
        left: auto;
        justify-content: center;
        margin-top: 30px;
    }

    .timeline-nav-btn {
        width: 45px;
        height: 45px;
    }
}

/* 小手机样式 (< 480px) */
@media (max-width: 479px) {
    .timeline-main-title {
        font-size: 28px;
    }

    .timeline-dots {
        gap: 30px;
    }

    .timeline-content {
        padding: 25px 15px;
    }

    .timeline-title {
        font-size: 22px;
    }

    .timeline-description {
        font-size: 15px;
    }

    .timeline-image-placeholder {
        height: 200px;
        width: 100%;
    }

    .timeline-image {
        width: 100%;
    }
}