/* ========== Reset ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    color: #333;
    background: #fff;
}

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

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    vertical-align: middle;
}

.container {
    width: 1320px;
    max-width: 100%;
    margin: 0 auto;
    padding: 0 15px;
}

/* ========== 顶部语言栏 ========== */
.top-bar {
    background-color: #8ec6c5;
    height: 30px;
    line-height: 30px;
    position: sticky;
    top: 0;
    z-index: 1001;
}

.top-bar .container {
    display: flex;
    justify-content: flex-end;
}

.lang-switch a {
    color: #fff;
    font-size: 13px;
    transition: color 0.3s;
}

.lang-switch a:hover {
    color: #1a4a7a;
}

.lang-switch span {
    color: #fff;
    margin: 0 6px;
    font-size: 13px;
}

/* ========== 主头部 ========== */
.main-header {
    background-color: #fff;
    position: sticky;
    top: 30px;
    z-index: 1000;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo a {
    display: block;
}

.logo img {
    height: 58px;
    width: auto;
}

/* ========== 导航 ========== */
.main-nav ul {
    display: flex;
}

.main-nav ul li a {
    display: block;
    width: 100px;
    text-align: center;
    line-height: 80px;
    font-size: 14px;
    color: #444;
    font-weight: 400;
    transition: background-color 0.3s, color 0.3s;
}

.main-nav ul li a:hover,
.main-nav ul li a.active {
    background-color: #065097;
    color: #fff;
}

/* ========== Banner 轮播 ========== */
.banner {
    position: relative;
    overflow: hidden;
}

.banner-slider {
    position: relative;
    width: 100%;
    height: 780px;
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.banner-slide.active {
    opacity: 1;
}

.banner-overlay {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
    width: 940px;
    max-width: 90%;
    background: rgba(255,255,255,0.81);
    padding: 30px 35px;
}

.banner-text h2 {
    font-size: 36px;
    color: #333;
    font-weight: 400;
    margin-bottom: 12px;
}

.banner-text p {
    font-size: 30px;
    color: #333;
    font-weight: 300;
    line-height: 1.4;
}

.banner-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 20;
    width: 50px;
    height: 50px;
    background: rgba(0,0,0,0.3);
    color: #fff;
    font-size: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.3s;
    user-select: none;
}

.banner-btn:hover {
    background: rgba(0,0,0,0.6);
}

.banner-prev {
    left: 20px;
}

.banner-next {
    right: 20px;
}

.banner-dots {
    position: absolute;
    bottom: 25px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 20;
    display: flex;
    gap: 10px;
}

.banner-dots .dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    cursor: pointer;
    transition: background 0.3s;
}

.banner-dots .dot.active {
    background: #fff;
}

/* ========== About Us ========== */
.section-about {
    padding: 90px 0;
    background: #fff;
}

.about-wrap {
    display: flex;
    align-items: flex-start;
    gap: 80px;
}

.about-img {
    position: relative;
    flex-shrink: 0;
}

.about-img-border {
    position: absolute;
    top: 30px;
    left: -15px;
    width: 488px;
    height: 424px;
    border: 1px solid #00BED1;
    z-index: 0;
}

.about-img img {
    position: relative;
    z-index: 1;
    width: 488px;
    height: 424px;
    object-fit: cover;
    display: block;
}

.section-title {
    font-size: 34px;
    font-weight: 700;
    margin-bottom: 15px;
}

.section-line {
    width: 50px;
    height: 1px;
    background: #333;
    margin-bottom: 25px;
}

.about-company {
    font-size: 20px;
    color: #003336;
    font-weight: 400;
    margin-bottom: 30px;
}

.about-desc {
    font-size: 14px;
    color: #777;
    line-height: 1.9;
}

/* ========== Service and Product ========== */
.section-service {
    padding: 60px 0 70px;
    background: #fff;
}

.section-title-center {
    text-align: center;
    font-size: 28px;
    color: #333;
    font-weight: 400;
    margin-bottom: 45px;
}

.service-list {
    display: flex;
    gap: 20px;
}

.service-item {
    flex: 1;
    background: #f8f8f8;
    transition: transform 0.3s, box-shadow 0.3s;
}

.service-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.service-item a {
    display: block;
}

.service-img {
    width: 100%;
    height: 186px;
    overflow: hidden;
}

.service-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.service-item:hover .service-img img {
    transform: scale(1.05);
}

.service-item h3 {
    text-align: center;
    font-size: 14px;
    color: #333;
    font-weight: 400;
    padding: 10px 8px;
    height: 40px;
    line-height: 20px;
}

/* ========== Our Advantages ========== */
.section-advantages {
    padding: 80px 0 90px;
    background: #f5f5f5;
}

.advantages-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 25px;
    margin-bottom: 30px;
}

.advantages-header h2 {
    font-size: 36px;
    color: #333;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    white-space: nowrap;
}

.adv-line-left,
.adv-line-right {
    display: block;
    width: 60px;
    height: 2px;
    background: #999;
}

.advantages-desc {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 50px;
    font-size: 15px;
    color: #555;
    line-height: 1.8;
}

.advantages-cards {
    display: flex;
    gap: 30px;
    justify-content: center;
}

.adv-card {
    flex: 1;
    max-width: 400px;
    background: #fff;
    border-radius: 8px;
    padding: 45px 30px 40px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.06);
    transition: transform 0.3s, box-shadow 0.3s;
}

.adv-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
}

.adv-card-icon {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    border: 2px solid #ddd;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
}

.adv-card h3 {
    font-size: 20px;
    color: #4a90a4;
    font-weight: 600;
    text-align: center;
    margin-bottom: 20px;
}

.adv-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
}

/* ========== Agent Network ========== */
.section-network {
    padding: 70px 0 80px;
    background: #f8f8f8;
}

.network-wrap {
    display: flex;
    align-items: flex-start;
    gap: 50px;
}

.network-info {
    flex-shrink: 0;
    width: 400px;
}

.network-info .section-title {
    font-size: 28px;
    color: #333;
    font-weight: 400;
    margin-bottom: 25px;
}

.network-info p {
    font-size: 16px;
    color: #828181;
    line-height: 2;
}

.network-map {
    flex: 1;
}

.network-map img {
    width: 100%;
    height: auto;
    display: block;
}

/* ========== Footer ========== */
.main-footer {
    background-color: #222;
    color: #fff;
}

.footer-content {
    display: flex;
    padding: 50px 0 40px;
    gap: 60px;
}

.footer-contact {
    flex: 1;
}

.footer-logo {
    margin-bottom: 25px;
}

.footer-logo img {
    height: 60px;
    width: auto;
}

.footer-info {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.footer-info-item {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 14px;
    color: #fff;
    line-height: 1.6;
}

.footer-icon {
    font-size: 18px;
    flex-shrink: 0;
    width: 24px;
    text-align: center;
    color: #fff;
}

.footer-info-label {
    color: #fff;
    flex-shrink: 0;
}

.footer-info-phone {
    font-size: 24px;
    color: #fff;
    font-weight: 700;
    line-height: 1.2;
}

.footer-info-item span {
    color: #fff;
}

.footer-company-cn {
    margin-top: 25px;
    font-size: 14px;
    color: #666;
}

.footer-links {
    min-width: 160px;
}

.footer-links h3 {
    font-size: 18px;
    font-weight: 400;
    color: #fff;
    margin-bottom: 20px;
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links ul li a {
    font-size: 14px;
    color: #888;
    transition: color 0.3s;
}

.footer-links ul li a:hover {
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid #333;
    padding: 20px 0;
    text-align: left;
}

.footer-nav {
    margin-bottom: 8px;
}

.footer-nav a {
    color: #888;
    font-size: 13px;
    transition: color 0.3s;
}

.footer-nav a:hover {
    color: #fff;
}

.footer-nav em {
    color: #555;
    margin: 0 6px;
    font-style: normal;
}

.copyright {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
}

/* ========== About 页面 ========== */
.page-about {
    padding: 80px 0 100px;
    background: #fff;
}

.page-about-wrap {
    display: flex;
    align-items: flex-start;
    gap: 60px;
}

.page-about-img {
    flex-shrink: 0;
    width: 477px;
}

.page-about-img img {
    width: 100%;
    height: 570px;
    object-fit: cover;
    display: block;
}

.page-about-info {
    flex: 1;
    padding-top: 30px;
}

.page-about-title {
    font-size: 30px;
    color: #00584F;
    font-weight: 400;
    margin-bottom: 20px;
    line-height: 1;
}

.page-about-subtitle {
    font-size: 28px;
    color: #333;
    font-weight: 400;
    margin-bottom: 40px;
    line-height: 1.4;
}

.page-about-desc {
    font-size: 14px;
    color: #555;
    line-height: 1.7;
    text-indent: 2em;
}

/* ========== 页面标题栏 ========== */
.page-heading {
    padding: 50px 0 30px;
    text-align: center;
    background: #fff;
}

.page-heading-title {
    font-size: 28px;
    color: #333;
    font-weight: 400;
    margin-bottom: 10px;
}

.page-heading-sub {
    font-size: 16px;
    color: #666;
}

/* ========== Service 页面 ========== */
.srv-section {
    padding: 50px 0;
}

.srv-bg-white {
    background: #fff;
}

.srv-bg-light {
    background: #f8f8f8;
}

.srv-row {
    display: flex;
    align-items: center;
    gap: 50px;
}

.srv-row-reverse {
    flex-direction: row-reverse;
}

.srv-img {
    flex-shrink: 0;
    width: 500px;
}

.srv-img img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    display: block;
}

.srv-info {
    flex: 1;
}

.srv-title {
    font-size: 28px;
    color: #0B5394;
    font-weight: 400;
    margin-bottom: 25px;
}

.srv-info p {
    font-size: 14px;
    color: #222;
    line-height: 2;
}

/* ========== 面包屑 ========== */
.breadcrumb {
    background: #f5f5f5;
    padding: 12px 0;
    font-size: 13px;
    color: #666;
}

.breadcrumb a {
    color: #333;
    transition: color 0.3s;
}

.breadcrumb a:hover {
    color: #0B5394;
}

.breadcrumb span {
    margin: 0 6px;
    color: #999;
}

/* ========== News 页面 ========== */
.news-page {
    padding: 40px 0 80px;
    background: #fff;
}

.news-layout {
    display: flex;
    gap: 30px;
}

.news-sidebar {
    flex-shrink: 0;
    width: 280px;
}

.sidebar-box {
    border: 1px solid #ededed;
}

.sidebar-title {
    font-size: 18px;
    font-weight: 400;
    color: #333;
    padding: 15px 20px;
    border-bottom: 1px solid #ededed;
}

.sidebar-list li a {
    display: block;
    padding: 10px 20px;
    font-size: 14px;
    color: #555;
    transition: all 0.3s;
}

.sidebar-list li a:hover,
.sidebar-list li a.active {
    color: #0B5394;
    background: #f8f8f8;
}

.news-main {
    flex: 1;
}

.news-main-title {
    font-size: 18px;
    font-weight: 400;
    color: #333;
    padding-bottom: 15px;
    border-bottom: 1px solid #ededed;
    margin-bottom: 0;
}

.news-list {
    margin-bottom: 30px;
}

.news-item a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    border-bottom: 1px dashed #eee;
    transition: color 0.3s;
}

.news-item a:hover {
    color: #0B5394;
}

.news-item-title {
    font-size: 14px;
    color: #333;
    flex: 1;
}

.news-item a:hover .news-item-title {
    color: #0B5394;
}

.news-item-date {
    font-size: 13px;
    color: #999;
    flex-shrink: 0;
    margin-left: 20px;
}

.news-pagination {
    display: flex;
    justify-content: center;
    gap: 5px;
}

.page-btn {
    display: inline-block;
    padding: 6px 14px;
    font-size: 13px;
    color: #555;
    border: 1px solid #ddd;
    background: #fff;
    cursor: pointer;
    transition: all 0.3s;
}

.page-btn:hover:not(.disabled):not(.page-current) {
    background: #0B5394;
    color: #fff;
    border-color: #0B5394;
}

.page-btn.disabled {
    color: #ccc;
    cursor: default;
}

.page-btn.page-current {
    background: #0B5394;
    color: #fff;
    border-color: #0B5394;
}

/* ========== News 详情页 ========== */
.news-detail-page {
    padding: 40px 0 80px;
    background: #fff;
}

.news-detail-box {
    border: 1px solid #ededed;
}

.news-detail-head {
    font-size: 18px;
    font-weight: 400;
    color: #333;
    padding: 15px 20px;
    border-bottom: 1px solid #ededed;
}

.news-detail-content {
    padding: 30px 40px 40px;
}

.news-detail-title {
    font-size: 22px;
    color: #333;
    font-weight: 500;
    text-align: center;
    margin-bottom: 30px;
    line-height: 1.5;
}

.news-detail-body {
    font-size: 14px;
    color: #555;
    line-height: 1.8;
    margin-bottom: 40px;
}

.news-detail-body img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 15px auto;
}

.news-detail-body p {
    margin-bottom: 15px;
}

.news-detail-nav {
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.back-to-list {
    display: inline-block;
    font-size: 14px;
    color: #0B5394;
    transition: color 0.3s;
}

.back-to-list:hover {
    color: #00BED1;
}

.breadcrumb em {
    font-style: normal;
    color: #999;
}

/* ========== Contact 页面 ========== */
.contact-page {
    padding: 50px 0 80px;
    background: #fff;
}

.contact-header {
    text-align: center;
    margin-bottom: 20px;
}

.contact-main-title {
    font-size: 28px;
    color: #333;
    font-weight: 400;
    margin-bottom: 10px;
}

.contact-sub {
    font-size: 16px;
    color: #666;
}

.contact-intro {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 50px;
}

.contact-intro p {
    font-size: 14px;
    color: #555;
    line-height: 1.8;
}

.contact-cards {
    display: flex;
    gap: 30px;
    margin-bottom: 60px;
}

.contact-card {
    flex: 1;
    text-align: center;
    padding: 35px 20px;
    background: #f8f8f8;
    border-radius: 4px;
    transition: box-shadow 0.3s;
}

.contact-card:hover {
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.contact-card-icon {
    margin-bottom: 18px;
}

.contact-card h3 {
    font-size: 16px;
    color: #333;
    font-weight: 500;
    margin-bottom: 12px;
}

.contact-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* 联系表单 */
.contact-form-section {
    max-width: 900px;
    margin: 0 auto;
}

.contact-form-title {
    font-size: 24px;
    color: #333;
    font-weight: 400;
    text-align: center;
    margin-bottom: 30px;
}

.form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    flex: 1;
}

.form-full {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    color: #333;
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    font-size: 14px;
    border: 1px solid #ddd;
    outline: none;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: #0B5394;
}

.form-group textarea {
    resize: vertical;
}

.form-submit {
    display: block;
    margin: 0 auto;
    padding: 12px 50px;
    font-size: 15px;
    color: #fff;
    background: #0B5394;
    border: none;
    cursor: pointer;
    transition: background 0.3s;
}

.form-submit:hover {
    background: #00BED1;
}

/* ========== 回到顶部 ========== */
.back-top {
    position: fixed;
    bottom: 50px;
    right: 30px;
    width: 44px;
    height: 44px;
    background: #065097;
    color: #fff;
    text-align: center;
    line-height: 44px;
    font-size: 18px;
    cursor: pointer;
    display: none;
    z-index: 999;
    transition: background 0.3s;
}

.back-top:hover {
    background: #00BED1;
}

/* ========== 动画 ========== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========== 汉堡菜单按钮（默认隐藏，移动端显示）========== */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    flex-shrink: 0;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: #333;
    transition: transform 0.3s, opacity 0.3s;
}

.nav-toggle.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

/* ========== 移动端适配 ========== */
@media (max-width: 768px) {

    /* 显示汉堡按钮 */
    .nav-toggle {
        display: flex;
    }

    /* 头部高度 */
    .header-inner {
        height: 60px;
        position: relative;
    }

    .logo img {
        height: 42px;
    }

    /* 导航菜单 - 默认折叠，覆盖式下拉 */
    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: #fff;
        box-shadow: 0 4px 12px rgba(0,0,0,0.12);
        z-index: 998;
    }

    .main-nav.open {
        display: block;
    }

    .main-nav ul {
        flex-direction: column;
    }

    .main-nav ul li a {
        width: 100%;
        line-height: 50px;
        text-align: left;
        padding: 0 20px;
        border-bottom: 1px solid #f0f0f0;
        font-size: 14px;
    }

    /* Banner */
    .banner-slider {
        height: 220px;
    }

    .banner-overlay {
        width: 92%;
        padding: 12px 15px;
    }

    .banner-text h2 {
        font-size: 15px;
        margin-bottom: 5px;
    }

    .banner-text p {
        font-size: 12px;
        line-height: 1.5;
    }

    .banner-btn {
        width: 32px;
        height: 32px;
        font-size: 14px;
    }

    .banner-prev { left: 8px; }
    .banner-next { right: 8px; }

    .banner-dots {
        bottom: 12px;
    }

    /* About 首页 */
    .section-about {
        padding: 40px 0;
    }

    .about-wrap {
        flex-direction: column;
        gap: 25px;
    }

    .about-img-border {
        display: none;
    }

    .about-img img {
        width: 100%;
        height: auto;
    }

    .section-title {
        font-size: 24px;
    }

    .about-company {
        font-size: 16px;
        margin-bottom: 15px;
    }

    /* Service 首页 */
    .section-service {
        padding: 40px 0 50px;
    }

    .section-title-center {
        font-size: 22px;
        margin-bottom: 25px;
    }

    .service-list {
        flex-wrap: wrap;
    }

    .service-item {
        flex: 0 0 calc(50% - 10px);
    }

    /* Advantages */
    .section-advantages {
        padding: 45px 0 50px;
    }

    .advantages-header h2 {
        font-size: 22px;
        letter-spacing: 1px;
    }

    .adv-line-left,
    .adv-line-right {
        width: 30px;
    }

    .advantages-desc {
        font-size: 13px;
        margin-bottom: 30px;
    }

    .advantages-cards {
        flex-direction: column;
        align-items: stretch;
    }

    .adv-card {
        max-width: 100%;
        padding: 30px 20px;
    }

    /* Network */
    .section-network {
        padding: 45px 0 50px;
    }

    .network-wrap {
        flex-direction: column;
        gap: 25px;
    }

    .network-info {
        width: 100%;
    }

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

    /* Footer */
    .footer-content {
        flex-direction: column;
        gap: 25px;
        padding: 35px 0 25px;
    }

    .footer-info-phone {
        font-size: 18px;
    }

    .footer-bottom {
        text-align: center;
    }

    .footer-nav {
        text-align: center;
        margin-bottom: 8px;
    }

    /* About 页面 */
    .page-about {
        padding: 35px 0 50px;
    }

    .page-about-wrap {
        flex-direction: column;
        gap: 25px;
    }

    .page-about-img {
        width: 100%;
    }

    .page-about-img img {
        height: auto;
        width: 100%;
    }

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

    .page-about-subtitle {
        font-size: 18px;
        margin-bottom: 20px;
    }

    /* Service 页面 */
    .srv-section {
        padding: 35px 0;
    }

    .srv-row,
    .srv-row.srv-row-reverse {
        flex-direction: column !important;
        gap: 20px;
    }

    .srv-img {
        width: 100%;
    }

    .srv-img img {
        height: 200px;
    }

    .srv-title {
        font-size: 22px;
        margin-bottom: 15px;
    }

    /* News 页面 */
    .news-page {
        padding: 25px 0 50px;
    }

    .news-layout {
        flex-direction: column;
    }

    .news-sidebar {
        width: 100%;
    }

    .news-item a {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    .news-item-date {
        margin-left: 0;
    }

    /* News 详情 */
    .news-detail-page {
        padding: 25px 0 50px;
    }

    .news-detail-content {
        padding: 20px 15px 25px;
    }

    .news-detail-title {
        font-size: 17px;
        margin-bottom: 20px;
    }

    /* Contact 页面 */
    .contact-page {
        padding: 35px 0 50px;
    }

    .contact-main-title {
        font-size: 22px;
    }

    .contact-cards {
        flex-direction: column;
        gap: 15px;
        margin-bottom: 40px;
    }

    .form-row {
        flex-direction: column;
        gap: 0;
        margin-bottom: 0;
    }

    .form-row .form-group {
        margin-bottom: 20px;
    }

    .form-submit {
        width: 100%;
        padding: 12px 20px;
    }

    /* 面包屑 */
    .breadcrumb {
        font-size: 12px;
        white-space: nowrap;
        overflow-x: auto;
    }

    /* 回到顶部 */
    .back-top {
        right: 15px;
        bottom: 30px;
        width: 38px;
        height: 38px;
        line-height: 38px;
        font-size: 15px;
    }
}