/* ============================================================
   responsive.css — PC / 平板 / 手机 / 微信内置浏览器 自适应适配
   ============================================================ */

/* ---------- 全局基础 ---------- */
* {
    -webkit-tap-highlight-color: transparent;
}

html {
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

body {
    min-width: 0 !important;
    touch-action: manipulation; /* 消除移动端双击缩放延迟 */
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

img {
    max-width: 100%;
    height: auto;
}

/* ---------- 顶部 ---------- */
.header {
    padding: 5px 0;
}

.header .cont {
    width: auto;
    max-width: 1180px;
    padding: 0 15px;
}

.header .cont .ml {
    margin: 0 !important;
}

/* ---------- 视频轮播（覆盖 style.css 中的固定尺寸） ---------- */
.slidebox {
    width: auto;
    max-width: 1180px;
    height: auto;
    padding: 10px;
    margin: 10px auto 30px;
}

.slide {
    width: 100%;
    overflow: hidden;
    position: relative;
    background: #000;
    /* 旧内核降级：padding 撑高 */
    height: 0;
    padding-bottom: 56.25%;
}

@supports (aspect-ratio: 16 / 9) {
    .slide {
        height: auto;
        padding-bottom: 0;
        aspect-ratio: 16 / 9;
    }
}

/* 旧样式为横向滚动容器，改为淡入淡出层叠 */
.slide .slide-track {
    position: static;
}

.slide .slide-item {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    float: none;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.6s ease;
    z-index: 1;
}

.slide .slide-item.active {
    opacity: 1;
    visibility: visible;
    z-index: 2;
}

.slide .slide-item video {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.slide ol {
    right: 0;
    bottom: 8px;
    width: 100%;
}

.slide ol li {
    width: 34px;
    height: 6px;
    margin: 0 6px;
    cursor: pointer;
    border-radius: 3px;
}

/* ---------- 内容区通用 ---------- */
.w1180 {
    width: auto;
    max-width: 1180px;
    padding: 0 15px;
    margin: 0 auto 25px;
}

.nav_b {
    width: auto;
    max-width: 1180px;
    padding: 0 15px;
    margin: 0 auto 25px;
}

.nav_b ul {
    margin: 0;
}

.nav_b li:empty {
    display: none;
}

/* ---------- 全景列表：固定浮动布局改为响应式网格 ---------- */
.list_cont .tab_box ul {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin: 0;
}

.list_cont .tab_box ul li,
.list_cont1 .tab_box li {
    float: none;
    width: auto;
    height: auto;
    margin: 0;
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
}

.list_cont1 .tab_box li a {
    height: auto;
}

.list_cont .tab_box ul li a img {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 270 / 185;
    object-fit: cover;
    border-radius: 0;
}

.list_cont .tab_box ul li p,
.list_cont .tab_box div ul li a p {
    width: auto !important;
    height: auto !important;
    line-height: 1.5 !important;
    padding: 8px 10px !important;
    font-size: 14px;
    text-align: center;
}

/* ---------- 页脚 ---------- */
footer .cont {
    width: auto;
    max-width: 1180px;
    padding: 30px 15px;
}

.footer-left {
    position: static;
    margin: 0 auto 15px;
    text-align: center;
}

.footer-left a,
.footer-left img {
    display: inline-block;
    width: auto;
    max-width: 200px;
    height: auto;
}

.footer-right {
    float: none;
    width: auto;
    max-width: 920px;
    margin: 0 auto;
}

/* ============================================================
   断点适配
   ============================================================ */

/* 平板横屏 / 小屏笔记本 (≤1199px)：4 列自适应 */
@media screen and (max-width: 1199px) {
    .list_cont .tab_box ul {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* 平板竖屏 (≤991px)：3 列 */
@media screen and (max-width: 991px) {
    .list_cont .tab_box ul {
        grid-template-columns: repeat(3, 1fr);
        gap: 14px;
    }

    .slidebox {
        margin: 10px 10px 25px;
    }
}

/* 手机 (≤767px)：2 列 */
@media screen and (max-width: 767px) {
    .list_cont .tab_box ul {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .w1180,
    .nav_b,
    .header .cont,
    footer .cont {
        padding-left: 10px;
        padding-right: 10px;
    }

    .slidebox {
        padding: 6px;
        margin: 8px 8px 20px;
    }

    .slide ol li {
        width: 24px;
        height: 5px;
        margin: 0 4px;
    }

    .main_cont .tit h2 {
        font-size: 18px;
    }

    .main_cont .tit .tit_more {
        margin-right: 5px;
    }

    .list_cont .tab_box ul li p,
    .list_cont .tab_box div ul li a p {
        font-size: 13px;
        padding: 6px 8px !important;
    }

    footer .cont {
        padding: 20px 10px;
    }

    .footer-right p {
        font-size: 12px;
        line-height: 22px;
    }
}

/* 小屏手机 (≤379px) */
@media screen and (max-width: 379px) {
    .list_cont .tab_box ul {
        gap: 8px;
    }

    .list_cont .tab_box ul li p,
    .list_cont .tab_box div ul li a p {
        font-size: 12px;
    }

    .main_cont .tit h2 {
        font-size: 16px;
    }
}