@charset "utf-8";

/* ============================================================
   站点头部导航（参考设计稿：1920 画布，内容区 1400）
   ============================================================ */
   @font-face {
  font-family: "AliPuHuiTi3";
  src: local("阿里巴巴普惠体 3 75 SemiBold"),
       local("AlibabaPuHuiTi_3_75_SemiBold");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
.site-header {
    width: 100%;
    height: 100px;
    background: #fff;
}

.site-header .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-sizing: border-box;
    width: 100%;
    max-width: 1440px;
    height: 100%;
    margin: 0 auto;
    padding: 0 20px;
}

/* logo */
.site-header .logo {
    flex: 0 0 auto;
    font-size: 0;
}

.site-header .logo img {
    display: block;
    width: 345px;
    max-width: 100%;
    height: auto;
}

/* 导航 */
.site-nav ul {
    display: flex;
    align-items: center;
    gap: 55px;
}

.site-nav li {
    position: relative;
    flex: 0 0 auto;
}

.site-nav a {
    position: relative;
    display: block;
    padding-bottom: 12px;
    font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    font-weight: 400;
    line-height: 1;
    color: #333;
    white-space: nowrap;
    transition: color .3s;
}

/* 选中/悬浮时文字下方的金色短线 */
.site-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 2px;
    background: #e0c485;
    opacity: 0;
    transition: opacity .3s;
}

.site-nav li:hover a,
.site-nav li.current a {
    color: #000;
}

.site-nav li:hover a::after,
.site-nav li.current a::after {
    opacity: 1;
}

/* 汉堡按钮与遮罩：仅在手机端（≤768）启用 */
.nav-toggle,
.nav-mask {
    display: none;
}

/* ============================================================
   首页 banner 轮播
   ============================================================ */
.banner {
    width: 100%;
    overflow: hidden;
}

.banner-swiper {
    width: 100%;
}

.banner-swiper .swiper-slide {
    position: relative;
}

.banner-swiper .swiper-slide img {
    display: block;
    width: 100%;
    height: auto;
}

/* 左右切换按钮 */
.banner-swiper .swiper-button-prev,
.banner-swiper .swiper-button-next {
    top: 50%;
    width: 43px;
    height: 43px;
    margin-top: 0;
    transform: translateY(-50%);
    border: 0;
    border-radius: 0;
    background: transparent center / 100% 100% no-repeat;
    transition: opacity .3s;
}

.banner-swiper .swiper-button-prev {
    left: 7.6%;
    background-image: url(../images/left.png);
}

.banner-swiper .swiper-button-next {
    right: 7.6%;
    background-image: url(../images/right.png);
}

.banner-swiper .swiper-button-prev:hover,
.banner-swiper .swiper-button-next:hover {
    opacity: .75;
}

.banner-swiper .swiper-button-prev:after,
.banner-swiper .swiper-button-next:after {
    display: none;
}

/* 分页指示器 */
.banner-swiper .swiper-pagination {
    bottom: 40px;
    line-height: 0;
    --swiper-pagination-bullet-horizontal-gap: 8px;
}

.banner-swiper .swiper-pagination-bullet {
    width: 7px;
    height: 7px;
    border-radius: 4px;
    background: #fff;
    opacity: .7;
    transition: width .3s, opacity .3s;
}

.banner-swiper .swiper-pagination-bullet-active {
    width: 40px;
    opacity: 1;
}

/* ============================================================
   首页 集团简介
   ============================================================ */
.about-section {
    padding: 85px 0 75px;
    background: #fff;
}

.about-inner {
    display: grid;
    grid-template-columns: 39.6% 52.9%;
    column-gap: 7.5%;
    box-sizing: border-box;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 20px;
}

.about-title {
    font-size: 35px;
    font-weight: 600;
    line-height: 1.2;
    color: #1b0e00;
    letter-spacing: 1px;
}

.about-title::after {
    content: "";
    display: block;
    width: 52px;
    height: 8px;
    margin-top: 16px;
    background: url(../images/title_icon.png) left center / 52px 8px no-repeat;
}

.about-subtitle {
    margin-top: 28px;
    font-size: 22px;
    line-height: 1.6;
    color: #1b0e00;
}

.about-desc {
    margin-top: 26px;
    font-size: 16px;
    line-height: 32px;
    color: #666;
    text-align: justify;
    letter-spacing: 1px;
}

/* 数据统计 */
.about-stats {
    display: flex;
    gap: 120px;
    margin-top: 60px;
}

.about-stats strong {
    display: block;
    font-size: 42px;
    font-weight: 600;
    line-height: 1;
    color: #1b0e00;
    font-variant-numeric: tabular-nums;
}

.about-stats span {
    display: block;
    margin-top: 12px;
    font-size: 14px;
    color: #1b0e00;
}

/* 查看更多按钮 */
.about-more {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    height: 54px;
    margin-top: 30px;
    padding: 0 26px;
    border-radius: 12px;
    background: #e2c088;
    font-size: 16px;
    color: #040403;
    transition: background-color .3s;
}

.about-more:hover {
    background: #d9b276;
    color: #333;
}

.about-more svg {
    display: block;
    flex: 0 0 auto;
}

/* 视频封面 */
.about-video {
    position: relative;
    z-index: 0;
    display: block;
    align-self: start;
    margin-top: 54px;
    border-radius: 12px;
}

.about-video::before {
    content: "";
    position: absolute;
    z-index: -1;
    inset: 0;
    border-radius: 12px;
    background: #f2f2f2;
    transform: translate(26px, 26px);
}

.about-video-img {
    position: relative;
    z-index: 1;
    display: block;
    width: 100%;
    height: auto;
    border-radius: 12px;
}

.about-video-play {
    position: absolute;
    z-index: 2;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    width: 76px;
    height: 76px;
    margin: auto;
    transition: transform .3s;
}

.about-video-play img {
    display: block;
    width: 100%;
    height: 100%;
}

.about-video:hover .about-video-play {
    transform: scale(1.08);
}

/* ============================================================
   首页 业务项目
   ============================================================ */
.biz-section {
    padding-top: 94px;
    background: url(../images/item_bg.jpg) left bottom  no-repeat;
    background-size: auto 100%;
}

.biz-stage {
    position: relative;
    margin-left: max(20px, calc((100vw - 1400px) / 2));
    aspect-ratio: 930 / 461;
    overflow: hidden;
    border-radius: 50px 0 0 0;
    background: #1e5c8f;
}

.biz-slides {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
}

.biz-slide {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background-position: center center;
    background-size: cover;
    background-repeat: no-repeat;
    opacity: 0;
    visibility: hidden;
    transition: opacity .6s ease, visibility .6s;
}

.biz-slide.active {
    z-index: 1;
    opacity: 1;
    visibility: visible;
}

.biz-slide-inner {
    position: absolute;
    top: 26.5%;
    left: 5.1%;
    width: clamp(370px, 24.5%, 405px);
    color: #fff;
}

.biz-title {
    font-size: 35px;
    font-weight: 500;
    line-height: 1.3;
    letter-spacing: 1px;
    text-shadow: 0 2px 12px rgba(0, 0, 0, .25);
}



.biz-en {
    margin-top: 18px;
    font-size: 18px;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-weight: 500;
    color: rgba(255, 255, 255, .95);
}

.biz-desc {
    margin-top: 30px;
    font-size: 17px;
    line-height: 32px;
    color: rgba(255, 255, 255, .95);
    text-shadow: 0 1px 8px rgba(0, 0, 0, .2);
    letter-spacing: 1px;
}

/* 底部切换栏 */
.biz-bar {
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 3;
    display: flex;
    height: 89px;
    border-top: 1px solid rgba(255, 255, 255, .35);
    background: rgba(255, 255, 255, .16);
}

.biz-tabs {
    display: flex;
    flex: 1;
    min-width: 0;
}

.biz-tab {
    position: relative;
    display: flex;
    flex: 1;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #fff;
    letter-spacing: 1px;
    transition: background-color .3s;
}

.biz-tab::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 1px;
    background: rgba(255, 255, 255, .4);
}

.biz-tab:first-child::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 1px;
    background: rgba(255, 255, 255, .4);
}

.biz-tab.active,
.biz-tab:hover {
    background: rgba(226, 192, 136, .35);
}

.biz-more {
    display: flex;
    flex: 0 0 15.1%;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: #f7f6f4;
    font-size: 18px;
    color: #000000;
}

.biz-more em {
    font-style: normal;
    font-size: 16px;
    color: #999;
}

.biz-more svg {
    color: #e23942;
    transition: transform .3s;
}

.biz-more:hover svg {
    transform: translateX(4px);
}

/* ============================================================
   首页 资源优势
   ============================================================ */
.res-section {
    padding: 110px 0 113px;
    background: url(../imgs/adv_back.jpg) center bottom no-repeat;
    background-size: 100% auto;
}

.res-inner {
    display: flex;
    box-sizing: border-box;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 20px;
}

.res-left {
    box-sizing: border-box;
    width: 30.5%;
    min-height: 578px;
    padding-top: 20px;
    padding-right: 30px;
    border-right: 1px solid #e6e6e6;
}

.res-heading {
    font-size: 35px;
    font-weight: 600;
    line-height: 1.25;
    color: #111;
}

.res-sub {
    display: inline-block;
    margin-top: 17px;
    /* padding-bottom: 0px; */
    /* border-bottom: 5px solid #e2bf87; */
    font-size: 30px;
    font-weight: 500;
    line-height: 1.3;
    color: #111;
    white-space: nowrap;
    position: relative;
}
.res-sub:after{
    position: absolute;
    left:0;
    bottom:0;
    content: "";
    width: 100%;
    height: 5px;
    background-color: #e2c088;
    border-radius: 999px;
}

.res-panels {
    position: relative;
    min-height: 325px;
    margin-top: 33px;
}

.res-panel {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity .4s ease;
}

.res-panel.active {
    opacity: 1;
    visibility: visible;
}

.res-cat {
    font-size: 28px;
    font-weight: 500;
    line-height: 1.4;
    color: #000000;
}

.res-text {
    margin-top: 18px;
    font-size: 18px;
    line-height: 34px;
    color: rgba(0, 0, 0, .8);
    text-align: justify;
}

/* 分页 */
.res-pager {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-top: 0;
}

.res-prev,
.res-next {
    display: flex;
    flex: 0 0 auto;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 30px;
    border: 1px solid #e2e2e2;
    background: #fff;
    color: #b0b0b0;
    cursor: pointer;
    transition: background-color .3s, border-color .3s, color .3s;
}

.res-next {
    border-color: #e2bf87;
    background: #e2bf87;
    color: #fff;
}

.res-prev:hover {
    border-color: #d9b177;
    color: #d9b177;
}

.res-next:hover {
    border-color: #d9b177;
    background: #d9b177;
    color: #fff;
}

.res-count {
    font-size: 20px;
    line-height: 1;
    letter-spacing: 1px;
    color: #333;
}

.res-count em,
.res-count i {
    font-style: normal;
}

.res-count i {
    color: #c2c2c2;
}

/* 右侧切换项 */
.res-right {
    display: grid;
    flex: 1;
    grid-template-columns: repeat(3, 1fr);
    gap: 27px;
    min-width: 0;
    padding-right: 48px;
}

.res-item {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-sizing: border-box;
    height: 578px;
    padding-top: 105px;
    text-align: center;
    cursor: pointer;
}

.res-item-icon {
    width: 46px;
    height: 46px;
    object-fit: contain;
}

.res-item-title {
    margin-top: 18px;
    font-size: 32px;
    font-weight: 400;
    line-height: 1.2;
    color: #000000;
    transition: color .3s;
}

.res-item-en {
    display: none;
}

.res-item-desc {
    box-sizing: border-box;
    width: 82%;
    margin-top: 16px;
    font-size: 17px;
    line-height: 28px;
    color: rgba(0, 0, 0, .75);
}

.res-item-arrow {
    position: absolute;
    top: 64.6%;
    left: 50%;
    transform: translateX(-50%);
    transition: transform .3s;
}

.res-item-arrow img {
    display: block;
    width: 44px;
    height: 14px;
}

.res-item:hover .res-item-title {
    color: #c39a5c;
}

.res-item:hover .res-item-arrow {
    transform: translateX(calc(-50% + 4px));
}

/* 激活项 */
.res-item.active {
    padding-top: 120px;
    background-image: var(--res-img);
    background-position: center center;
    background-size: cover;
    background-repeat: no-repeat;
    cursor: default;
}

.res-item.active::before {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: rgba(18, 26, 34, .3);
}

.res-item.active .res-item-icon,
.res-item.active .res-item-arrow {
    display: none;
}

.res-item.active .res-item-title {
    position: relative;
    margin-top: 0;
    font-size: 34px;
    color: #fff;
}

.res-item.active:hover .res-item-title {
    color: #fff;
}

.res-item.active .res-item-en {
    position: relative;
    display: block;
    margin-top: 12px;
    font-size: 18px;
    line-height: 1.2;
    color: rgba(255, 255, 255, .85);
}

.res-item.active .res-item-desc {
    position: relative;
    width: 90%;
    margin-top: 50px;
    font-size: 18px;
    line-height: 30px;
    color: rgba(255, 255, 255, .92);
    text-shadow: 0 1px 6px rgba(0, 0, 0, .25);
}

.res-item-btn {
    position: absolute;
    top: 62.2%;
    left: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #fff;
    color: #d9b177;
    transform: translate(-50%, -50%);
    transition: transform .3s;
}

.res-item.active .res-item-btn {
    display: flex;
}

.res-item.active .res-item-btn:hover {
    transform: translate(-50%, -50%) scale(1.08);
}

/* ============================================================
   首页 文化活动
   ============================================================ */
.culture-section {
    padding: 93px 0 66px;
    background: #2b332a url(../images/culture_bg.jpg) center center / cover no-repeat;
    background-attachment: fixed;
}

.culture-inner {
    box-sizing: border-box;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 20px;
}

.culture-title {
    font-size: 35px;
    font-weight: 500;
    line-height: 1.3;
    color: #fff;
    text-align: center;
    letter-spacing: 1px;
}

.culture-tabs {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
    gap: 120px;
    margin-top: 34px;
}

.culture-tab {
    font-size: 24px;
    line-height: 1.4;
    color: rgba(255, 255, 255, .82);
    transition: color .3s;
    position: relative;
}

.culture-tab.active {
    font-size: 27px;
    font-weight: 500;
    color: #fff;
}
.culture-tab.active::after{
    position: absolute;
    left: 0;
    bottom:0;
    content: "";
    width: 100%;
    height: 5px;
    border-radius: 999px;
    background-color: #e2c088;
}

.culture-tab:hover {
    color: #fff;
}

.culture-panels {
    margin-top: 45px;
}

.culture-panel {
    display: none;
}

.culture-panel.active {
    display: block;
}

.culture-swiper {
    overflow: hidden;
}

.culture-swiper .swiper-slide {
    height: auto;
}

.culture-card {
    display: block;
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 10px 28px rgba(0, 0, 0, .22);
}

.culture-card-img {
    display: block;
    aspect-ratio: 439 / 275;
    overflow: hidden;
    border-radius: 18px;
}

.culture-card-img img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .6s ease;
}

.culture-card:hover .culture-card-img img {
    transform: scale(1.06);
}

.culture-card-cap {
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    height: 66px;
    padding: 0 20px;
    font-size: 17px;
    line-height: 1.2;
    color: #000;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.culture-dots {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    margin-top: 60px;
}

.culture-dot {
    display: block;
    width: 8px;
    height: 8px;
    border-radius: 5px;
    background: rgba(255, 255, 255, .45);
    cursor: pointer;
    transition: width .3s ease, background-color .3s ease;
}

.culture-dot.active {
    width: 44px;
    background: #fff;
}

/* ============================================================
   首页 元谋旅游
   ============================================================ */
.tour-section {
    padding: 72px 0 99px;
    background: #fff;
}

.tour-head {
    text-align: center;
}

.tour-title {
    font-size: 35px;
    font-weight: 600;
    line-height: 1.3;
    color: #000000;
}

.tour-line {
    display: block;
    width: 52px;
    height: 5px;
    margin: 24px auto 0;
    background: #e2bf87;
}

.tour-stage {
    position: relative;
    box-sizing: border-box;
    max-width: 1440px;
    margin: 41px auto 0;
    padding: 0 20px;
}

.tour-swiper {
    overflow: hidden;
}

.tour-swiper .swiper-slide {
    height: auto;
    border-radius: 14px;
    overflow: hidden;
}

.tour-card {
    display: block;
    background: #f1f1f1;
    transition: background-color .35s ease;
}

.tour-card-img {
    display: block;
    overflow: hidden;
    aspect-ratio: 316 / 343;
    border-radius: 14px;
}

.tour-card-img img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .6s ease;
}

.tour-card-body {
    position: relative;
    box-sizing: border-box;
    min-height: 153px;
    padding: 23px 16px 22px;
}

.tour-card-title {
    font-size: 26px;
    font-weight: 500;
    line-height: 1.2;
    color: #000000;
    transition: color .35s ease;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tour-card-desc {
    display: -webkit-box;
    margin-top: 8px;
    overflow: hidden;
    font-size: 17px;
    line-height: 1.6;
    color: rgba(0, 0, 0, .6);
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    transition: color .35s ease;
}

.tour-card-more {
    position: absolute;
    right: 16px;
    bottom: 12px;
    color: #9a9a9a;
    transition: color .35s ease, transform .35s ease;
}

.tour-card:hover .tour-card-img img {
    transform: scale(1.05);
}

.tour-card:hover .tour-card-more {
    transform: translateX(4px);
}

/* 悬停高亮 */
.tour-card:hover {
    background: #e0bf89;
}

.tour-card:hover .tour-card-title {
    color: #241d14;
}

.tour-card:hover .tour-card-desc {
    color: #6d5a3f;
}

.tour-card:hover .tour-card-more {
    color: #241d14;
}

/* 左右切换按钮 */
.tour-nav {
    position: absolute;
    top: 50%;
    z-index: 5;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 43px;
    height: 43px;
    padding: 0;
    border: 0;
    background: none;
    cursor: pointer;
    transform: translateY(-50%);
    transition: opacity .3s ease, transform .3s ease;
}

.tour-prev {
    left: -48px;
}

.tour-next {
    right: -48px;
}

.tour-nav img {
    display: block;
    width: 43px;
    height: 43px;
}

.tour-nav:hover {
    transform: translateY(-50%) scale(1.08);
}

.tour-nav.swiper-button-disabled {
    opacity: .4;
    cursor: default;
}

/* ============================================================
   首页 动态资讯
   ============================================================ */
.news-section {
    padding: 68px 0 52px;
    background: #f1f1f1;
    background: url(../imgs/news_bg.jpg) center bottom no-repeat #f1f1f1;
    background-size: 100% auto;
}

.news-inner {
    box-sizing: border-box;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 20px;
}

.news-title {
    font-size: 35px;
    font-weight: 600;
    line-height: 1.3;
    color: #1a1a1a;
    text-align: center;
}

.news-tabs {
    display: flex;
    align-items: flex-start;
    flex-wrap: wrap;
    justify-content: center;
    gap: 95px;
    margin-top: 30px;
}

.news-tab {
    font-size: 25px;
    line-height: 1.05;
    color: rgba(0, 0, 0, .75);
    padding-bottom: 1px;
    border-bottom: 5px solid transparent;
    transition: color .3s, border-color .3s;
}

.news-tab:hover {
    color: #1a1a1a;
}

.news-tab.active {
    font-size: 27px;
    color: #000000;
    font-weight: 600;
    border-bottom-color: #e2bf87;
}

.news-panels {
    margin-top: 57px;
}

.news-panel {
    display: none;
}

.news-panel.active {
    display: block;
}

.news-body {
    display: flex;
    align-items: flex-start;
    gap: 44px;
}

.news-cards {
    display: grid;
    flex: 1 1 auto;
    grid-template-columns: repeat(2, 1fr);
    gap: 43px;
    min-width: 0;
}

/* 大图资讯卡 */
.news-card {
    display: block;
    background: #fff;
}

.news-card-img {
    display: block;
    aspect-ratio: 413 / 261;
    overflow: hidden;
}

.news-card-img img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .6s ease;
}

.news-card:hover .news-card-img img {
    transform: scale(1.05);
}

.news-card-body {
    box-sizing: border-box;
    padding: 38px 21px 54px;
}

.news-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 14px;
    line-height: 14px;
}

.news-card-date {
    color: #bf1925;
    font-size: 15px;
}

/* 卡片右上角“查看更多”入口 */
.news-card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    line-height: 1;
    color: #8d8d8d;
    transition: color .3s;
}

.news-card-link svg {
    flex: 0 0 auto;
}

.news-card:hover .news-card-link {
    color: #bf1925;
}

.news-card-title {
    display: -webkit-box;
    margin-top: 33px;
    overflow: hidden;
    font-size: 20px;
    font-weight: 500;
    line-height: 1.7;
    color: rgba(0, 0, 0, .85);
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    transition: color .3s;
}

.news-card:hover .news-card-title {
    color: #bf1925;
}

/* 右侧资讯列表 */
.news-list {
    display: flex;
    flex: 0 0 484px;
    flex-direction: column;
    gap: 39px;
    width: 484px;
}

.news-item {
    display: flex;
    align-items: flex-start;
    gap: 27px;
}

.news-item-img {
    display: block;
    flex: 0 0 202px;
    width: 202px;
    aspect-ratio: 202 / 131;
    overflow: hidden;
}

.news-item-img img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .6s ease;
}

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

.news-item-body {
    flex: 1 1 auto;
    min-width: 0;
}

.news-item-date {
    display: block;
    font-size: 13px;
    line-height: 14px;
    color: #8d8d8d;
}

.news-item-title {
    margin-top: 16px;
    overflow: hidden;
    font-size: 16px;
    font-weight: 500;
    line-height: 1.6;
    color: #000000;
    transition: color .3s;
    overflow: hidden;text-overflow: ellipsis;white-space: nowrap; 
}

.news-item:hover .news-item-title {
    color: #bf1925;
}

.news-item-desc {
    display: -webkit-box;
    margin-top: 2px;
    overflow: hidden;
    font-size: 15px;
    line-height: 1.6;
    color: #868686;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

/* 查看更多按钮 */
.news-more {
    display: block;
    width: 126px;
    height: 42px;
    margin: 32px auto 0;
    font-size: 16px;
    line-height: 42px;
    color: #241d14;
    text-align: center;
    background: #e3c088;
    border-radius: 21px;
    transition: opacity .3s;
}

.news-more:hover {
    opacity: .85;
}

/* ============================================================
   首页 底部导航
   ============================================================ */
.ft-section {
    padding: 60px 0 56px;
    color: #94948f;
    background: #221f18 url(../images/footer_bg.jpg) center top / cover no-repeat;
}

.ft-inner {
    box-sizing: border-box;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 20px;
}

.ft-top {
    padding-bottom: 33px;
    border-bottom: 1px solid rgba(255, 255, 255, .22);
}

.ft-logo {
    display: block;
    width: 345px;
}

.ft-logo img {
    display: block;
    width: 345px;
    height: 71px;
}

.ft-body {
    display: flex;
    align-items: flex-start;
    padding-top: 41px;
}

.ft-nav {
    display: flex;
    flex: 1 1 auto;
    justify-content: space-between;
    gap: 40px;
    margin-right: 48px;
    padding-left: 55px;
}

/* 列宽交给内容决定：栏目和下级栏目都来自后台，长度不固定 */
.ft-col {
    flex: 0 0 auto;
    width: auto;
    margin: 0;
}

.ft-col dt {
    font-size: 17px;
    font-weight: 700;
    line-height: 1.4;
    color: #ededeb;
}

.ft-col dt a {
    color: inherit;
    transition: color .3s;
}

.ft-col dt a:hover {
    color: #e2bf87;
}

.ft-col dt span {
    display: block;
    width: 21px;
    height: 2px;
    margin-top: 13px;
    background: rgba(255, 255, 255, .3);
}

.ft-col dd {
    margin: 0;
    font-size: 14px;
    line-height: 34px;
}

.ft-col dd:first-of-type {
    margin-top: 31px;
}

.ft-col dd a {
    color: #94948f;
    transition: color .3s;
}

.ft-col dd a:hover {
    color: #e2bf87;
}

/* 公众号二维码 */
.ft-qr {
    width: 170px;
    margin: 10px 19px 0 auto;
    text-align: center;
}

.ft-qr img {
    display: block;
    width: 170px;
    height: 170px;
}

.ft-qr p {
    margin-top: 21px;
    font-size: 13px;
    line-height: 1.4;
    color: #94948f;
}

/* 版权信息 */
.ft-bottom {
    display: flex;
    align-items: flex-end;
    margin-top: 37px;
    padding-top: 35px;
    border-top: 1px solid rgba(255, 255, 255, .16);
    font-size: 14px;
    line-height: 26px;
    color: #bcbdb8;
}

.ft-info p,
.ft-contact p,
.ft-support {
    margin: 0;
}
.ft-support a{
    color:#bcbdb8;
}

.ft-contact {
    margin-left: 72px;
}

.ft-contact span {
    margin-left: 21px;
}

.ft-support {
    margin-left: auto;
}

/* ============================================================
   页面交互：滚动渐入、切换过渡、返回顶部
   ============================================================ */
html {
    scroll-behavior: smooth;
}

/* 滚动渐入：仅在 JS 给 <html> 加上 reveal-on 后生效，避免脚本异常时内容不可见 */
html.reveal-on :where(.about-text,
    .about-video,
    .res-left,
    .res-right,
    .culture-title,
    .culture-tabs,
    .culture-panels,
    .culture-dots,
    .tour-head,
    .tour-stage,
    .news-title,
    .news-tabs,
    .news-panels,
    .news-more,
    .ft-top,
    .ft-body,
    .ft-bottom) {
    opacity: 0;
    transform: translateY(30px);
}

html.reveal-on .is-revealed {
    opacity: 1;
    transform: none;
    transition: opacity .8s ease, transform .8s cubic-bezier(.22, .61, .36, 1);
}

/* 键盘操作时的焦点提示 */
a:focus-visible,
button:focus-visible {
    outline: 2px solid #e2bf87;
    outline-offset: 3px;
}

/* banner 缓慢推近 */
.banner-swiper .swiper-slide-active img {
    animation: bannerZoom 7s ease-out both;
}

@keyframes bannerZoom {
    from {
        transform: scale(1);
    }

    to {
        transform: scale(1.08);
    }
}

/* 业务项目：文案随底图一起淡入 */
.biz-slide-inner {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity .7s ease .15s, transform .7s cubic-bezier(.22, .61, .36, 1) .15s;
}

.biz-slide.active .biz-slide-inner {
    opacity: 1;
    transform: none;
}

/* 资源优势：卡片展开过渡 */
.res-item {
    transition: padding-top .5s ease;
}

/* 面板切换淡入 */
.culture-panel.active .culture-swiper,
.news-panel.active {
    animation: panelFade .55s ease both;
}

@keyframes panelFade {
    from {
        opacity: 0;
        transform: translateY(18px);
    }

    to {
        opacity: 1;
        transform: none;
    }
}

/* 返回顶部 */
.to-top {
    position: fixed;
    right: 34px;
    bottom: 72px;
    z-index: 90;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    padding: 0;
    color: #fff;
    cursor: pointer;
    background: rgba(28, 28, 24, .72);
    border: 1px solid rgba(226, 191, 135, .55);
    border-radius: 50%;
    opacity: 0;
    visibility: hidden;
    transform: translateY(14px);
    transition: opacity .35s ease, transform .35s ease, visibility .35s, background-color .3s, border-color .3s, color .3s;
}

.to-top.show {
    opacity: 1;
    visibility: visible;
    transform: none;
}

.to-top:hover {
    color: #241d14;
    background: #e2bf87;
    border-color: #e2bf87;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }
}

/* 适配较小屏幕 */
@media screen and (max-width: 1500px) {
    .site-nav ul {
        gap: 38px;
    }

    .about-video::before {
        transform: translate(16px, 16px);
    }

    .biz-title {
        font-size: 34px;
    }

    .biz-en {
        font-size: 16px;
    }

    .biz-desc {
        font-size: 16px;
    }

    .biz-bar {
        height: 84px;
    }

    .biz-tab,
    .biz-more {
        font-size: 17px;
    }

    .tour-stage {
        padding: 0 62px;
    }

    .tour-prev {
        left: 8px;
    }

    .tour-next {
        right: 8px;
    }

    .news-section {
        padding: 60px 0 50px;
    }

    .news-title {
        font-size: 34px;
    }

    .news-tabs {
        gap: 70px;
    }

    .news-tab {
        font-size: 24px;
    }

    .news-list {
        flex: 0 0 420px;
        width: 420px;
    }

    .news-item-img {
        flex: 0 0 176px;
        width: 176px;
    }

    .news-card-body {
        padding: 30px 18px 42px;
    }

    .news-card-title {
        margin-top: 26px;
        font-size: 18px;
    }

}

@media screen and (max-width: 1280px) {
    .site-header {
        height: 84px;
    }

    .site-header .logo img {
        width: 300px;
    }

    .site-nav ul {
        gap: 26px;
    }

    .site-nav a {
        font-size: 15px;
    }

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

    .banner-swiper .swiper-button-prev {
        left: 4%;
    }

    .banner-swiper .swiper-button-next {
        right: 4%;
    }

    .about-section {
        padding: 60px 0;
    }

    .about-title {
        font-size: 30px;
    }

    .about-subtitle {
        font-size: 20px;
    }

    .about-desc {
        line-height: 30px;
    }

    .about-stats {
        gap: 80px;
        margin-top: 45px;
    }

    .about-stats strong {
        font-size: 32px;
    }

    .about-video {
        margin-top: 40px;
    }

    /* 小屏右侧留白不足，收窄错位装饰块避免横向溢出 */
    .about-video::before {
        transform: translate(12px, 12px);
    }

    .biz-title {
        font-size: 32px;
    }

    .biz-en {
        font-size: 15px;
    }

    .biz-desc {
        font-size: 16px;
        line-height: 30px;
    }

    .biz-bar {
        height: 80px;
    }

    .biz-tab,
    .biz-more {
        font-size: 16px;
    }

    .biz-more em {
        font-size: 14px;
    }

    .res-section {
        padding: 70px 0;
    }

    .res-left {
        min-height: 500px;
    }

    .res-heading {
        font-size: 34px;
    }

    .res-sub {
        font-size: 28px;
    }

    .res-cat {
        font-size: 24px;
    }

    .res-text {
        font-size: 16px;
        line-height: 30px;
    }

    .res-panels {
        min-height: 260px;
    }

    .res-count {
        font-size: 17px;
    }

    .res-prev,
    .res-next {
        width: 46px;
        height: 28px;
    }

    .res-right {
        gap: 22px;
        padding-right: 36px;
    }

    .res-item {
        height: 500px;
        padding-top: 90px;
    }

    .res-item-icon {
        width: 40px;
        height: 40px;
    }

    .res-item-title,
    .res-item.active .res-item-title {
        font-size: 28px;
    }

    .res-item-desc {
        font-size: 15px;
        line-height: 26px;
    }

    .res-item.active {
        padding-top: 98px;
    }

    .res-item.active .res-item-en {
        font-size: 15px;
    }

    .res-item.active .res-item-desc {
        margin-top: 28px;
        font-size: 15px;
        line-height: 26px;
    }

    .res-item-btn {
        width: 48px;
        height: 48px;
    }

    .culture-section {
        padding: 70px 0 55px;
    }

    .culture-title {
        font-size: 32px;
    }

    .culture-tabs {
        gap: 76px;
        margin-top: 28px;
    }

    .culture-tab {
        font-size: 20px;
    }

    .culture-tab.active {
        font-size: 22px;
    }

    .culture-panels {
        margin-top: 34px;
    }

    .culture-card-cap {
        height: 56px;
        font-size: 20px;
    }

    .culture-dots {
        gap: 14px;
        margin-top: 44px;
    }

    .culture-dot.active {
        width: 36px;
    }

    .tour-section {
        padding: 60px 0 80px;
    }

    .tour-title {
        font-size: 32px;
    }

    .tour-line {
        width: 44px;
        height: 4px;
        margin-top: 18px;
    }

    .tour-stage {
        margin-top: 34px;
        padding: 0 58px;
    }

    .tour-nav {
        width: 40px;
        height: 40px;
    }

    .tour-nav img {
        width: 40px;
        height: 40px;
    }

    .tour-card-body {
        min-height: 132px;
        padding: 20px 20px 36px;
    }

    .tour-card-title {
        font-size: 26px;
    }

    .tour-card-desc {
        margin-top: 6px;
        font-size: 18px;
        line-height: 28px;
    }

    .tour-card-more {
        right: 18px;
        bottom: 12px;
    }

    .ft-section {
        padding: 52px 0 48px;
    }

    .ft-nav {
        flex: 1 1 auto;
        justify-content: space-between;
        margin-right: 0;
        padding-left: 0;
    }

    .ft-col,
    .ft-col:nth-child(3),
    .ft-col:nth-child(4),
    .ft-col:nth-child(5),
    .ft-col:nth-child(6) {
        width: auto;
    }
}

@media screen and (max-width: 992px) {
    html body {
        min-width: 0;
    }

    .site-header {
        height: auto;
        padding: 15px 0;
    }

    .site-header .header-inner {
        flex-direction: column;
        gap: 12px;
    }

    .site-header .logo img {
        width: 240px;
    }

    .site-nav {
        width: 100%;
    }

    .site-nav ul {
        flex-wrap: wrap;
        justify-content: center;
        width: 100%;
        gap: 10px 24px;
    }

    .banner-swiper .swiper-button-prev,
    .banner-swiper .swiper-button-next {
        width: 32px;
        height: 32px;
    }

    .banner-swiper .swiper-pagination {
        bottom: 20px;
    }

    .banner-swiper .swiper-pagination-bullet {
        width: 5px;
        height: 5px;
    }

    .banner-swiper .swiper-pagination-bullet-active {
        width: 26px;
    }

    .about-section {
        padding: 45px 0 55px;
    }

    .about-inner {
        grid-template-columns: 100%;
        row-gap: 45px;
    }

    .about-title {
        font-size: 26px;
    }

    .about-title::after {
        width: 42px;
        height: 3px;
        margin-top: 14px;
    }

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

    .about-desc {
        margin-top: 18px;
        line-height: 28px;
    }

    .about-stats {
        gap: 40px;
        margin-top: 35px;
    }

    .about-stats strong {
        font-size: 30px;
    }

    .about-more {
        margin-top: 28px;
    }

    .about-video {
        margin-top: 0;
    }

    .about-video-play {
        width: 56px;
        height: 56px;
    }

    .biz-section {
        padding-top: 45px;
    }

    .biz-stage {
        height: 480px;
        margin-left: 16px;
        aspect-ratio: auto;
        border-radius: 24px 0 0 0;
    }

    .biz-slide-inner {
        top: 40px;
        right: 20px;
        left: 20px;
        width: auto;
    }

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

    .biz-en {
        margin-top: 12px;
        font-size: 13px;
        letter-spacing: 1px;
    }

    .biz-desc {
        margin-top: 16px;
        font-size: 14px;
        line-height: 26px;
    }

    .biz-bar {
        height: 64px;
    }

    .biz-tab {
        font-size: 14px;
    }

    .biz-more {
        flex: 0 0 110px;
        gap: 6px;
        font-size: 14px;
    }

    .biz-more em {
        display: none;
    }

    .biz-more svg {
        width: 7px;
        height: 12px;
    }

    .res-section {
        padding: 45px 0 55px;
    }

    .res-inner {
        display: block;
        padding: 0 16px;
    }

    .res-left {
        width: auto;
        min-height: 0;
        padding-right: 0;
        border-right: 0;
    }

    .res-heading {
        font-size: 26px;
    }

    .res-sub {
        margin-top: 14px;
        padding-bottom: 3px;
        border-bottom-width: 4px;
        font-size: 20px;
    }

    .res-panels {
        min-height: 0;
        margin-top: 24px;
    }

    .res-panel {
        position: static;
        display: none;
    }

    .res-panel.active {
        display: block;
    }

    .res-cat {
        font-size: 20px;
    }

    .res-text {
        margin-top: 12px;
        font-size: 14px;
        line-height: 28px;
    }

    .res-pager {
        gap: 14px;
        margin-top: 24px;
    }

    .res-prev,
    .res-next {
        width: 46px;
        height: 30px;
    }

    .res-count {
        font-size: 16px;
    }

    .res-right {
        display: flex;
        flex-direction: column;
        margin-top: 30px;
        padding-right: 0;
        gap: 0;
    }

    .res-item {
        flex-direction: row;
        justify-content: flex-start;
        height: auto;
        padding: 18px 0;
        border-bottom: 1px solid #eee;
        text-align: left;
        gap: 14px;
    }

    .res-item-icon {
        flex: 0 0 auto;
        width: 34px;
        height: 34px;
    }

    .res-item-title,
    .res-item.active .res-item-title {
        flex: 1;
        margin-top: 0;
        font-size: 18px;
        color: #333;
    }

    .res-item-desc,
    .res-item-en {
        display: none;
    }

    .res-item-arrow {
        position: static;
        flex: 0 0 auto;
        width: 30px;
        transform: none;
    }

    .res-item-arrow img {
        width: 30px;
        height: auto;
    }

    .res-item:hover .res-item-arrow {
        transform: translateX(3px);
    }

    .res-item.active {
        flex-direction: column;
        justify-content: center;
        height: clamp(280px, 40vw, 340px);
        margin: 6px 0 12px;
        padding: 0 20px;
        border-bottom: 0;
        text-align: center;
        gap: 0;
    }

    .res-item.active .res-item-title {
        flex: none;
        font-size: 24px;
        color: #fff;
    }

    .res-item.active .res-item-en {
        display: block;
        margin-top: 8px;
        font-size: 13px;
    }

    .res-item.active .res-item-desc {
        display: block;
        width: 90%;
        margin-top: 14px;
        font-size: 13px;
        line-height: 24px;
    }

    .res-item-btn {
        position: static;
        width: 44px;
        height: 44px;
        margin-top: 18px;
        transform: none;
    }

    .res-item.active .res-item-btn {
        margin-top: 18px;
    }

    .res-item.active .res-item-btn:hover {
        transform: scale(1.05);
    }

    .culture-section {
        padding: 45px 0 50px;
    }

    .culture-inner {
        padding: 0 16px;
    }

    .culture-title {
        font-size: 24px;
        letter-spacing: 1px;
    }

    .culture-tabs {
        gap: 18px;
        margin-top: 20px;
    }

    .culture-tab {
        font-size: 14px;
    }

    .culture-tab.active {
        font-size: 16px;
    }

    .culture-panels {
        margin-top: 24px;
    }

    .culture-card-cap {
        height: 48px;
        padding: 0 12px;
        font-size: 14px;
    }

    .culture-dots {
        gap: 10px;
        margin-top: 24px;
    }

    .culture-dot {
        width: 6px;
        height: 5px;
    }

    .culture-dot.active {
        width: 28px;
    }

    .tour-section {
        padding: 40px 0 46px;
    }

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

    .tour-line {
        width: 34px;
        height: 4px;
        margin-top: 14px;
    }

    .tour-stage {
        margin-top: 24px;
        padding: 0 16px;
    }

    .tour-nav {
        display: none;
    }

    .tour-card-body {
        min-height: 0;
        padding: 14px 16px 34px;
    }

    .tour-card-title {
        font-size: 17px;
    }

    .tour-card-desc {
        margin-top: 6px;
        font-size: 13px;
        line-height: 22px;
    }

    .tour-card-more {
        right: 16px;
        bottom: 12px;
    }

    .tour-card-more svg {
        width: 22px;
        height: 9px;
    }

    .news-section {
        padding: 40px 0 46px;
    }

    .news-inner {
        padding: 0 16px;
    }

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

    .news-tabs {
        gap: 22px;
        margin-top: 12px;
    }

    .news-tab {
        font-size: 16px;
        border-bottom-width: 3px;
    }

    .news-panels {
        margin-top: 24px;
    }

    .news-body {
        flex-direction: column;
        gap: 24px;
    }

    .news-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
        width: 100%;
    }

    .news-card-body {
        padding: 16px 14px 18px;
    }

    .news-card-meta {
        font-size: 12px;
        line-height: 12px;
    }

    .news-card-date {
        font-size: 12px;
    }

    .news-card-title {
        margin-top: 14px;
        font-size: 15px;
    }

    .news-list {
        display: grid;
        flex: none;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 18px;
        width: 100%;
    }

    .news-item {
        gap: 14px;
    }

    .news-item-img {
        flex: 0 0 118px;
        width: 118px;
    }

    .news-item-date {
        font-size: 12px;
    }

    /* 窄屏允许标题换行，避免单行不换行把栅格撑宽 */
    .news-item-title {
        display: -webkit-box;
        margin-top: 8px;
        overflow: hidden;
        font-size: 14px;
        white-space: normal;
        text-overflow: clip;
        -webkit-box-orient: vertical;
        -webkit-line-clamp: 2;
    }

    .news-item-desc {
        font-size: 13px;
    }

    .news-more {
        margin-top: 26px;
    }

    .ft-section {
        padding: 36px 0 34px;
        background-position: center top;
    }

    .ft-inner {
        padding: 0 16px;
    }

    .ft-top {
        padding-bottom: 20px;
    }

    .ft-logo {
        width: 252px;
    }

    .ft-logo img {
        width: 252px;
        height: 52px;
    }

    .ft-body {
        flex-wrap: wrap;
        padding-top: 26px;
    }

    .ft-nav {
        display: grid;
        flex: 1 1 100%;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px 16px;
    }

    .ft-col dt {
        font-size: 15px;
    }

    .ft-col dt span {
        margin-top: 9px;
    }

    .ft-col dd {
        font-size: 13px;
        line-height: 28px;
    }

    .ft-col dd:first-of-type {
        margin-top: 12px;
    }

    .ft-qr {
        margin: 26px auto 0;
    }

    .ft-qr img {
        width: 140px;
        height: 140px;
    }

    .ft-qr p {
        margin-top: 14px;
    }

    .ft-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
        margin-top: 26px;
        padding-top: 20px;
        font-size: 12px;
        line-height: 22px;
    }

    .ft-contact {
        margin-left: 0;
    }

    .ft-support {
        margin-left: 0;
    }
}

@media screen and (max-width: 480px) {
    .site-header .logo img {
        width: 200px;
    }

    .site-nav ul {
        gap: 8px 16px;
    }

    .site-nav a {
        font-size: 14px;
        padding-bottom: 8px;
    }

    .about-inner {
        padding: 0 16px;
    }

    .about-stats {
        gap: 28px;
    }

    .about-stats strong {
        font-size: 26px;
    }

    .about-stats span {
        font-size: 12px;
    }

    .about-more {
        padding: 0 20px;
    }

    .biz-stage {
        height: 440px;
    }

    .biz-slide-inner {
        top: 28px;
    }

    .biz-title {
        font-size: 20px;
    }

    .biz-en {
        font-size: 11px;
    }

    .biz-desc {
        font-size: 12px;
        line-height: 22px;
    }

    .biz-bar {
        height: 52px;
    }

    .biz-tab {
        font-size: 11px;
    }

    .biz-more {
        flex: 0 0 84px;
        font-size: 11px;
    }

    .res-heading {
        font-size: 22px;
    }

    .res-sub {
        font-size: 17px;
    }

    .res-cat {
        font-size: 18px;
    }

    .res-text {
        font-size: 13px;
        line-height: 26px;
    }

    .res-item {
        padding: 14px 0;
        gap: 12px;
    }

    .res-item-icon {
        width: 30px;
        height: 30px;
    }

    .res-item-title,
    .res-item.active .res-item-title {
        font-size: 16px;
    }

    .res-item.active {
        height: 240px;
    }

    .res-item.active .res-item-title {
        font-size: 20px;
    }

    .res-item.active .res-item-desc {
        font-size: 12px;
        line-height: 22px;
    }

    .res-item-btn {
        width: 40px;
        height: 40px;
    }

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

    .culture-tabs {
        gap: 14px;
    }

    .culture-tab {
        font-size: 13px;
    }

    .culture-tab.active {
        font-size: 14px;
    }

    .culture-card-cap {
        height: 42px;
        font-size: 13px;
    }

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

    .tour-card-title {
        font-size: 16px;
    }

    .tour-card-desc {
        font-size: 12px;
        line-height: 20px;
    }

    .news-cards {
        grid-template-columns: 1fr;
    }

    .news-list {
        grid-template-columns: minmax(0, 1fr);
    }

    .ft-logo {
        width: 210px;
    }

    .ft-logo img {
        width: 210px;
        height: 43px;
    }

    .ft-nav {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px 18px;
    }

    .ft-contact span {
        display: block;
        margin-left: 0;
    }

    .to-top {
        right: 14px;
        bottom: 24px;
        width: 44px;
        height: 44px;
    }
}

/* ============================================================
   手机端（≤768px）
   上面 992 断点只是把桌面尺寸等比缩小，手机上仍然显得“大而空”，
   这里按手机重新排一遍：字号降一档、区块内边距收紧、固定高度放开、
   导航改为横向滚动、页脚导航两列。
   ============================================================ */
@media screen and (max-width: 768px) {
    /* 头部：logo 居左 + 汉堡按钮，导航收进下拉面板 */
    .site-header {
        position: relative;
        z-index: 100;
        padding: 10px 0;
    }

    .site-header .header-inner {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
    }

    /* 层次：遮罩 1 < 菜单 2 < logo 与按钮 3 */
    .site-header .logo,
    .nav-toggle {
        position: relative;
        z-index: 3;
    }

    .site-header .logo img {
        width: 168px;
    }

    /* 汉堡按钮：44×44 触控区 */
    .nav-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        flex: 0 0 auto;
        width: 44px;
        height: 44px;
        margin-right: -6px;
        padding: 0;
        background: none;
        border: 0;
        cursor: pointer;
        -webkit-tap-highlight-color: transparent;
    }

    .nav-toggle-bars,
    .nav-toggle-bars::before,
    .nav-toggle-bars::after {
        display: block;
        width: 22px;
        height: 2px;
        background: #1a1a1a;
        border-radius: 2px;
        transition: transform .28s ease, opacity .2s ease, background-color .2s ease;
    }

    .nav-toggle-bars {
        position: relative;
    }

    .nav-toggle-bars::before,
    .nav-toggle-bars::after {
        content: "";
        position: absolute;
        left: 0;
    }

    .nav-toggle-bars::before {
        top: -7px;
    }

    .nav-toggle-bars::after {
        top: 7px;
    }

    /* 展开后三条线变 × */
    body.nav-open .nav-toggle-bars {
        background: transparent;
    }

    body.nav-open .nav-toggle-bars::before {
        transform: translateY(7px) rotate(45deg);
    }

    body.nav-open .nav-toggle-bars::after {
        transform: translateY(-7px) rotate(-45deg);
    }

    /* 导航面板：从头部下方展开 */
    .site-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        z-index: 2;
        width: auto;
        max-height: calc(100vh - 72px);
        overflow-y: auto;
        background: #fff;
        box-shadow: 0 10px 24px rgba(0, 0, 0, .09);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: opacity .28s ease, transform .28s ease, visibility .28s;
        -webkit-overflow-scrolling: touch;
    }

    body.nav-open .site-nav {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .site-nav ul {
        display: block;
        width: 100%;
        gap: 0;
        padding: 4px 0;
    }

    .site-nav li {
        position: relative;
    }

    .site-nav li + li {
        border-top: 1px solid #f2f0ec;
    }

    .site-nav a {
        display: block;
        padding: 16px 20px;
        font-size: 15px;
        color: #33332f;
    }

    /* 手机端用左侧竖条标记当前页，不再用桌面那条金色下划线 */
    .site-nav a::after {
        display: none;
    }

    .site-nav li.current a {
        font-weight: 600;
        color: #a4813f;
    }

    .site-nav li.current::before {
        content: "";
        position: absolute;
        top: 50%;
        left: 0;
        width: 3px;
        height: 18px;
        margin-top: -9px;
        background: #c9a86a;
    }

    /* 半透明遮罩 */
    /* 遮罩在 header 之外，层级低于 header，保证顶栏和菜单保持纯白 */
    .nav-mask {
        display: block;
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
        z-index: 99;
        background: rgba(0, 0, 0, .38);
        opacity: 0;
        visibility: hidden;
        transition: opacity .28s ease, visibility .28s;
    }

    body.nav-open .nav-mask {
        opacity: 1;
        visibility: visible;
    }

    /* 菜单展开时锁住页面滚动 */
    body.nav-open {
        overflow: hidden;
    }

    /* banner：1920×845 直接等比缩到 390×172，文字小到看不清，
       这里改成按高度裁切、左对齐，图内文案随之放大到可读 */
    .banner-swiper .swiper-slide img {
        height: 280px;
        object-fit: cover;
        object-position: right center;
    }

    /* 集团简介 */
    .about-section {
        padding: 30px 0 34px;
    }

    .about-inner {
        padding: 0 16px;
        row-gap: 26px;
    }

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

    .about-title::after {
        width: 32px;
        margin-top: 10px;
    }

    .about-subtitle {
        margin-top: 12px;
        font-size: 15px;
    }

    .about-desc {
        margin-top: 12px;
        font-size: 14px;
        line-height: 26px;
    }

    .about-stats {
        gap: 20px;
        margin-top: 22px;
    }

    .about-stats strong {
        font-size: 22px;
    }

    .about-stats span {
        font-size: 12px;
    }

    .about-more {
        margin-top: 20px;
        height: 44px;
        padding: 0 18px;
        font-size: 13px;
        line-height: 44px;
    }

    .about-video-play {
        width: 48px;
        height: 48px;
    }

    /* 业务板块：放开桌面固定高度 */
    .biz-section {
        padding-top: 30px;
    }

    .biz-stage {
        height: 340px;
        margin-left: 12px;
    }

    .biz-slide-inner {
        top: 20px;
    }

    .biz-title {
        font-size: 18px;
    }

    .biz-en {
        font-size: 11px;
    }

    .biz-desc {
        margin-top: 10px;
        font-size: 13px;
        line-height: 22px;
    }

    .biz-bar {
        height: 60px;
        padding: 0 12px;
    }

    .biz-tab {
        padding: 0 10px;
        font-size: 14px;
    }

    .biz-more {
        font-size: 12px;
    }

    /* 资源优势 */
    .res-section {
        padding: 30px 0 34px;
    }

    .res-inner {
        padding: 0 16px;
    }

    .res-heading {
        font-size: 20px;
    }

    .res-sub {
        font-size: 14px;
    }

    .res-left {
        min-height: 0;
    }

    .res-text {
        font-size: 13.5px;
        line-height: 24px;
    }

    /* 文化活动 */
    .culture-section {
        padding: 30px 0 34px;
        background-attachment: scroll;
    }

    .culture-inner {
        padding: 0 16px;
    }

    .culture-title {
        font-size: 20px;
    }

    .culture-tabs {
        gap: 20px;
    }

    .culture-tab {
        font-size: 15px;
    }

    /* 元谋旅游 */
    .tour-section {
        padding: 30px 0 34px;
    }

    .tour-title {
        font-size: 20px;
    }

    /* 桌面是 316×343 的竖版卡，手机上竖图会占掉大半屏，改成 4:3 */
    .tour-card-img {
        aspect-ratio: 4 / 3;
    }

    .tour-card-body {
        min-height: 0;
        padding: 12px 14px 26px;
    }

    .tour-card-title {
        font-size: 16px;
    }

    .tour-card-desc {
        font-size: 12.5px;
        line-height: 20px;
    }

    /* 动态资讯 */
    .news-section {
        padding: 30px 0 34px;
    }

    .news-inner {
        padding: 0 16px;
    }

    .news-title {
        font-size: 20px;
    }

    .news-tab {
        font-size: 14px;
    }

    .news-item-img {
        width: 104px;
        height: 70px;
    }

    .news-item-title {
        font-size: 15px;
    }

    .news-item-desc {
        font-size: 12.5px;
        line-height: 21px;
    }

    .news-more {
        width: 78px;
        height: 38px;
        font-size: 12px;
    }

    /* 页脚 */
    .ft-section {
        padding: 28px 0 24px;
    }

    .ft-logo,
    .ft-logo img {
        width: 200px;
    }

    .ft-logo img {
        height: 42px;
    }

    .ft-body {
        padding-top: 20px;
    }

    .ft-nav {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 18px 12px;
    }

    .ft-col dt {
        font-size: 14px;
    }

    .ft-col dt span {
        margin-top: 7px;
        font-size: 10px;
    }

    .ft-col dd {
        font-size: 12.5px;
        line-height: 24px;
    }

    .ft-col dd:first-of-type {
        margin-top: 9px;
    }

    .ft-qr {
        margin-top: 18px;
    }

    .ft-qr img {
        width: 108px;
        height: 108px;
    }

    .ft-bottom {
        margin-top: 18px;
        padding-top: 16px;
    }

    .to-top {
        right: 12px;
        bottom: 18px;
        width: 40px;
        height: 40px;
    }
}