* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    color: var(--color);
}

nav {
    display: block;
}

.mobnav {
    display: none;
}

:root {
    --color: #151515;
    --borderColor: #999999;
    --titleColor: #1b1b1b;
    --radius: 10px;
    --pad100: 100px 0;
    --gray: #666;
    --linear: linear-gradient(to right, #2d5aa0, #153170);
    --bgcolor: #F5F7FA;
    --primary:#153170
}

img {
    vertical-align: middle;
}

li {
    list-style: none;
}

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

input,
textarea {
    outline: none;
}

.container {
    width: 1200px;
    margin: 0 auto;
}

/* 导航 */
nav {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 999;
    background-color: #fff;
    padding:5px 0;
    border-bottom: 1px solid var(--primary);
}

.navlogo img {
    height: 60px;
}

nav>div {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
nav .active{
    color:var(--primary);
}

.menulist {
    display: flex;
    flex: 1;
    margin: 0 50px;
    justify-content: center;
    gap: 20px;
}

.menulist > li {
    position: relative;
    text-align: center;
    font-size: 18px;
}

.menulist > li > a {
    position: relative;
    display: inline-flex;
    align-items: center;
    padding: 8px 0;
    color: var(--color);
    transition: color .35s ease;
}

.menulist > li > a::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 2px;
    width: 0;
    height: 2px;
    border-radius: 2px;
    background: var(--primary);
    transition: width .35s ease, left .35s ease, opacity .35s ease;
    opacity: 0;
}

.menulist > li > a:hover,
.menulist > li > a.active,
.menulist > li:hover > a {
    color: var(--primary);
}

.menulist > li > a:hover::after,
.menulist > li:hover > a::after,
.menulist > li > a.active::after {
    left: 0;
    width: 100%;
    opacity: 1;
}

.nav-caret {
    display: inline-block;
    width: 0;
    height: 0;
    margin-left: 6px;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 5px solid currentColor;
    opacity: .5;
    transition: transform .3s ease, opacity .3s ease;
}

.menulist > li:not(:has(.navdrop a)) .nav-caret,
.menulist > li:not(:has(.navdrop a)) .navdrop {
    display: none;
}

.menulist > li:has(.navdrop a):hover .nav-caret {
    transform: rotate(180deg);
    opacity: 1;
}

.navdrop {
    position: absolute;
    top: 100%;
    left: 50%;
    z-index: 30;
    padding-top: 14px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateX(-50%) translateY(10px);
    transition: opacity .28s ease, visibility .28s ease, transform .28s cubic-bezier(.22, 1, .36, 1);
}

.menulist > li:hover .navdrop,
.menulist > li:focus-within .navdrop {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

.navdrop ul {
    min-width: 168px;
    padding: 8px 0;
    border: 1px solid #eef3fb;
    border-radius: 12px;
    background: #fff;
    box-shadow: 0 14px 36px rgba(50, 122, 255, .14);
    overflow: hidden;
}

.navdrop li {
    text-align: left;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity .28s ease, transform .28s ease, background .25s ease;
}

.menulist > li:hover .navdrop li,
.menulist > li:focus-within .navdrop li {
    opacity: 1;
    transform: translateY(0);
}

.menulist > li:hover .navdrop li:nth-child(1),
.menulist > li:focus-within .navdrop li:nth-child(1) { transition-delay: .04s; }
.menulist > li:hover .navdrop li:nth-child(2),
.menulist > li:focus-within .navdrop li:nth-child(2) { transition-delay: .08s; }
.menulist > li:hover .navdrop li:nth-child(3),
.menulist > li:focus-within .navdrop li:nth-child(3) { transition-delay: .12s; }
.menulist > li:hover .navdrop li:nth-child(4),
.menulist > li:focus-within .navdrop li:nth-child(4) { transition-delay: .16s; }
.menulist > li:hover .navdrop li:nth-child(5),
.menulist > li:focus-within .navdrop li:nth-child(5) { transition-delay: .2s; }
.menulist > li:hover .navdrop li:nth-child(6),
.menulist > li:focus-within .navdrop li:nth-child(6) { transition-delay: .24s; }

.navdrop a {
    display: block;
    padding: 10px 22px;
    font-size: 15px;
    line-height: 1.4;
    white-space: nowrap;
    color: var(--color);
    transition: color .25s ease, background-color .25s ease, padding-left .25s ease;
}

.navdrop a:hover,
.navdrop a.active {
    color: var(--primary);
    background: #f5f8ff;
    padding-left: 26px;
}

.searchLan {
    display: flex;
    align-items: center;
    gap: 20px;
}

.search {
    width: 150px;
    border: 1px solid var(--borderColor);
    display: flex;
    align-items: center;
    border-radius: 50px;
    overflow: hidden;
    padding: 8px 10px;
    margin: 0;
    background: #fff;
}

.search input {
    width: 100%;
    border: none;
    outline: none;
    background: transparent;
    font-size: 18px;
    min-width: 0;
}

.search-btn {
    border: none;
    background: transparent;
    padding: 0;
    margin: 0;
    line-height: 1;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    color: inherit;
}

.search-btn .iconfont {
    font-size: 20px;
    color: var(--color);
}

.search span {
    cursor: pointer;
}

.checklan {
    display: flex;
    align-items: center;
    gap: 5px;
    cursor: pointer;
    position: relative;
}
.checklan .landrop {
    padding-top: 18px;
    position: absolute;
    width: 120px;
    text-align: center;
    transform: translateX(-50%) translateY(6px);
    left: 50%;
    top: 100%;
    background-color: transparent;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .3s ease, visibility .3s ease, transform .3s ease;
}

.checklan:hover .landrop,
.checklan.is-open .landrop {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}
 
.checklan ul{
    box-shadow: 0 4px 12px rgba(0,0,0,.12);
    border-radius: 5px;
    overflow: hidden;
}
.checklan li {
    background-color: #fff;
    text-align: center;
    line-height:2.5;
    transition: background-color .25s ease, color .25s ease;
}

.checklan li:hover,
.checklan li.active {
    background-color: #F5F7FA;
    color: var(--primary);
}

/* banner*/
.ban{
    position: relative;
    height: 280px;
    max-height: 280px;
    overflow: hidden;
}
.ban > img{
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
    display: block;
}
.ban div{
    position: absolute;
    top:50%;
    left: 0;
    right: 0;
    margin: auto;
    transform: translateY(-50%);
}
.ban p{
    color:#fff;
    line-height: 1.5;
}
.ban p:nth-child(1){
    font-size: 50px;
    font-weight: bold;
}
.ban p:nth-child(2){
    font-size: 22px;
    letter-spacing: 0.02em;
}
.ban.ban-svc p:nth-child(1){
    font-size: 40px;
    font-weight: 700;
}
.ban.ban-svc p:nth-child(2){
    font-size: 16px;
    letter-spacing: normal;
    margin-top: 10px;
    opacity: .92;
}
/* 二级导航 */
.subNav{
    border-bottom: 1px solid #F7F7F7;
}
.subNav ul{
    display: flex;
    flex-wrap: wrap;
    gap:100px;
}
.subNav ul li{
    height: 70px;
    line-height: 70px;
    border-bottom: 2px solid #fff;
    transition: color .3s ease, border-color .3s ease;
}
.subNav ul li:hover{
    border-color:var(--primary);
    color:var(--primary);
}
.subNav ul li.active{
    border-color:var(--primary);
    color:var(--primary);
}
.subNav a{
    display: block;
    font-size:18px;
}
/* 标题 */
.title {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.title p {
    color: var(--titleColor);
    font-size: 30px;
    font-weight: bold;
}

.title a {
    color: var(--primary);
}

/* 图片处理 */
.img {
    width: 100%;
    padding-top: 65%;
    position: relative;
}

.img img {
    height: 100%;
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    object-fit: cover;
}

/* 底部 */
footer {
    background-color: var(--color);
    padding: 50px 0 20px;
    color: #fff;
}

.fot_top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
    position: relative;
    z-index: 5;
}
.fot_top > img{
    height: 60px;
}

.fotbrand {
    flex-shrink: 0;
    max-width: 280px;
    width: 280px;
}

.fotbrand > img {
    height: 60px;
    display: block;
    margin-bottom: 18px;
}

.fotmenu {
    flex: 1;
    display: flex;
    align-items: flex-start;
}

.fotmenu li {
    flex: 1;
    text-align: center;
}

.fotmenu > li > a {
    position: relative;
    display: inline-block;
    padding: 6px 0;
    color: #fff;
    font-size: 18px;
    transition: opacity .3s ease;
}

.fotmenu > li > a::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 0;
    height: 2px;
    border-radius: 2px;
    background: #fff;
    opacity: 0;
    transition: width .35s ease, left .35s ease, opacity .35s ease;
}

.fotmenu > li > a:hover {
    opacity: 0.92;
}

.fotmenu > li > a:hover::after {
    left: 0;
    width: 100%;
    opacity: 1;
}

.fotsub {
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.fotsub a {
    color: #fff;
    font-size: 14px;
    line-height: 1.6;
    opacity: 0.75;
    transition: opacity .25s ease;
}

.fotsub a:hover {
    opacity: 1;
}

.fotshare {
    display: flex;
    flex-direction: column;
    align-items: center;
    align-self: flex-start;
    flex-shrink: 0;
    gap: 10px;
}

.fotqr {
    text-align: center;
}

.fotqr-frame {
    position: relative;
    width: 80px;
    height: 80px;
    background: #fff;
    padding: 3px;
    box-sizing: border-box;
    overflow: hidden;
}

.fotqr-frame img {
    position: absolute;
    left: 3px;
    top: 3px;
    width: 74px;
    height: 74px;
    display: block;
    object-fit: contain;
    opacity: 0;
    transform: scale(.96);
    transition: opacity .55s ease, transform .55s ease;
    pointer-events: none;
}

.fotqr-frame img.is-on {
    opacity: 1;
    transform: scale(1);
    z-index: 1;
}

.fotqr p {
    margin: 8px 0 0;
    color: #fff;
    font-size: 14px;
    line-height: 1.4;
    text-align: center;
}

.fotshare ul {
    display: flex;
    gap: 10px;
    align-items: center;
    margin: 0;
    padding: 0;
}

.fotshare li {
    position: relative;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    transition: background-color .25s ease;
}

.fotshare li > img {
    height: 34px;
    width: 34px;
    cursor: pointer;
    display: block;
    transition: filter .25s ease;
}

.fotshare li:hover > img,
.fotshare li.active > img {
    filter: brightness(0) invert(1);
}
.fotl li img {
    height: 20px;
    margin-right: 5px;
}

.fotl li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 15px;
    min-width: 0;
    max-width: 100%;
}

.fotl p {
    font-size: 14px;
    color: #fff;
    flex: 1;
    min-width: 0;
    line-height: 1.6;
    white-space: normal;
    word-break: break-all;
    overflow-wrap: anywhere;
}

.fotl span {
    color: #fff;
}

/* 固定文案标记：继承父级，避免被全局 color 盖掉 */
.gw-ui {
    color: inherit;
    font: inherit;
    font-weight: inherit;
    line-height: inherit;
}

.fotl .gw-ui {
    font-size: 14px;
    color: #fff;
}

.fotl .iconfont {
    margin-right: 10px;
    flex-shrink: 0;
    margin-top: 2px;
}

.fotl {
    margin: 0;
    padding: 0;
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
}

.fotl li:last-child {
    margin-bottom: 0;
}

.fotcopy {
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, .12);
    text-align: left;
    line-height: 1.8;
}

.fotcopy p,
.fotcopy a {
    margin: 0;
    font-size: 14px;
    color: #fff;
}

.fotcopy a:hover {
    color: #fff;
}

/* 右侧在线客服（固定悬浮，醒目） */
.gw-kefu {
    position: fixed;
    right: 24px;
    bottom: 120px;
    z-index: 1200;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
}

.gw-kefu-tip {
    position: relative;
    max-width: 220px;
    padding: 8px 12px;
    border-radius: 10px;
    background: #fff;
    color: #1b1b1b;
    font-size: 13px;
    line-height: 1.5;
    white-space: nowrap;
    box-shadow: 0 8px 20px rgba(21, 49, 112, 0.18);
    pointer-events: none;
}

.gw-kefu-tip::after {
    content: '';
    position: absolute;
    right: 26px;
    bottom: -6px;
    width: 10px;
    height: 10px;
    background: #fff;
    transform: rotate(45deg);
    box-shadow: 2px 2px 4px rgba(21, 49, 112, 0.08);
}

.gw-kefu-type {
    color: inherit;
}

.gw-kefu-caret {
    display: inline-block;
    width: 2px;
    height: 13px;
    margin-left: 2px;
    vertical-align: -2px;
    background: #153170;
    animation: gw-kefu-caret 0.8s step-end infinite;
}

@keyframes gw-kefu-caret {
    50% {
        opacity: 0;
    }
}

.gw-kefu-btn {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    width: 72px;
    height: 72px;
    padding: 0;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    text-decoration: none;
    color: #fff !important;
    background: linear-gradient(145deg, #2d5aa0 0%, #153170 100%);
    box-shadow: 0 8px 22px rgba(21, 49, 112, 0.45);
    transition: transform .25s ease, box-shadow .25s ease;
}

.gw-kefu-btn::before {
    content: '';
    position: absolute;
    inset: -6px;
    border-radius: 50%;
    border: 2px solid rgba(21, 49, 112, 0.4);
    animation: gw-kefu-pulse 2s ease-out infinite;
    pointer-events: none;
}

.gw-kefu-btn:hover {
    transform: scale(1.06);
    box-shadow: 0 10px 28px rgba(21, 49, 112, 0.55);
    color: #fff !important;
}

.gw-kefu-ico {
    width: 28px;
    height: 28px;
    display: block;
    line-height: 0;
    color: #fff !important;
}

.gw-kefu-ico,
.gw-kefu-ico svg,
.gw-kefu-ico path {
    color: #fff !important;
    fill: #fff !important;
}

.gw-kefu-ico svg {
    width: 100%;
    height: 100%;
    display: block;
}

.gw-kefu-txt {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.02em;
    line-height: 1;
    color: #fff !important;
}

@keyframes gw-kefu-pulse {
    0% {
        transform: scale(0.92);
        opacity: 0.85;
    }
    70% {
        transform: scale(1.18);
        opacity: 0;
    }
    100% {
        transform: scale(1.18);
        opacity: 0;
    }
}

.fot-icp {
    margin-top: 4px;
}

@media (max-width:768px) {
    .container {
        width: 100%;
    }

    :root {
        --pad100: 15px;
    }

    nav {
        display: none;
    }

    .mobnav {
        display: block;
        position: sticky;
        top: 0;
        left: 0;
        width: 100%;
    }

    .mob_nav_fix {
        height: 60px;
        padding: 0 15px;
        box-shadow: 0 0 3px #ccc;
        position: sticky;
        top:0;
        left: 0;
        width: 100%;
        z-index: 100;
        background-color: #fff;
        border-bottom: 1px solid var(--primary);
    }

    .btn_home {
        font-size: 20px;
    }

    .menubtn {
        position: relative;
        height: 20px;
        width: 20px;
    }

    .menubtn div {
        height: 2px;
        width: 20px;
        background-color: var(--color);
        position: absolute;
        border-radius: 20px;
    }

    .menubtn div:nth-child(1) {
        top: 3px;
        left: 0;
    }

    .menubtn div:nth-child(2) {
        top: 0;
        left: 0;
        bottom: 0;
        margin: auto;
    }

    .menubtn div:nth-child(3) {
        bottom: 3px;
        left: 0;
    }

    .mobMian {
        height: calc(100vh - 60px);
        display: none;
        position: fixed;
        top:60px;
        z-index: 90;
        width: 100%;
    }
    .mobMian > div{
        height: 100%;
        width: 100%;
        display: flex;
        flex-direction: column;
        padding: 30px;
        justify-content: center;
        background-color: #fff;
        align-items: center;
    }
    .mobmenuList {
        margin-bottom: 50px;
    }

    .mobmenuList li {
        margin: 24px 0;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        font-weight: bold;
    }

    .mobsub {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px 16px;
        margin-top: 10px;
        font-size: 14px;
        font-weight: 500;
    }

    .mobsub a {
        color: #666;
        padding: 2px 0;
        transition: color .25s ease;
    }

    .mobsub a:hover {
        color: var(--primary);
    }

    .mobsub:not(:has(a)) {
        display: none;
    }

   .mobmenutel{
    text-align: center;
    line-height: 4;
    font-size: 18px;
    font-weight: bold;
    letter-spacing: 2px;
   }


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

    .title a {
        font-size: 14px;
    }

    footer {
        padding: 15px;
    }

    .fotbrand {
        width: 100%;
        max-width: 100%;
    }

    .fotcopy {
        margin-top: 20px;
        padding-top: 16px;
    }

    .fotcopy p,
    .fotcopy a {
        font-size: 12px;
    }

    .fotmenu,
    .fotshare {
        display: none;
    }
    .ban{
        height: 200px;
        max-height: 350px;
    }
    .ban p:nth-child(1){
        font-size: 24px;
        margin-bottom: 10px;
    }
    .ban p:nth-child(2){
        font-size: 16px;
        letter-spacing: 0.06em;
    }
    .ban.ban-svc p:nth-child(1){
        font-size: 26px;
    }
    .ban.ban-svc p:nth-child(2){
        font-size: 14px;
        letter-spacing: normal;
        margin-top: 8px;
    }
    .ban div{
        padding: 0 15px;
        position: absolute;
        top: 50%;
        left: 0;
        right: 0;
        transform: translateY(-50%);
    }
    .ban > img{
        position: absolute;
        top: 0;
        left: 0;
        height: 100%;
        width: 100%;
        object-fit: cover;
        object-position: center center;
        z-index: -1;
    }
    .subNav{
        padding: 15px;
    }
    .subNav ul{
        gap:25px;
    }
    .subNav ul li{
        height: 40px;
        line-height: 40px;
    }

    .gw-kefu {
        right: 12px;
        bottom: 80px;
        gap: 8px;
    }

    .gw-kefu-tip {
        max-width: 160px;
        padding: 6px 10px;
        font-size: 12px;
        white-space: normal;
    }

    .gw-kefu-tip::after {
        right: 22px;
    }

    .gw-kefu-btn {
        width: 60px;
        height: 60px;
    }

    .gw-kefu-ico {
        width: 24px;
        height: 24px;
    }

    .gw-kefu-txt {
        font-size: 11px;
    }
}