:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --accent: #f59e0b;
    --accent-hover: #d97706;
    --text: #1e293b;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --bg: #ffffff;
    --bg-gray: #f8fafc;
    --bg-dark: #0f172a;
    --border: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,.06);
    --shadow: 0 4px 20px rgba(0,0,0,.08);
    --shadow-lg: 0 10px 40px rgba(0,0,0,.12);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all .3s cubic-bezier(.4,0,.2,1);
    --header-h: 72px;
}

body {
    font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--text);
    line-height: 1.7;
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

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

header {
    height: var(--header-h);
    background: rgba(255,255,255,.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    box-shadow: none;
}

header.scroll-header {
    height: 64px;
    border-bottom-color: var(--border);
    box-shadow: var(--shadow-sm);
}

header .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

header .logo {
    width: auto;
    max-width: 200px;
    margin: 0;
    float: none;
    flex-shrink: 0;
}

header .logo img {
    max-height: 44px;
    width: auto;
    transition: var(--transition);
}

.scroll-header .logo img { max-height: 38px; }

header .nav_m {
    float: none;
    width: auto;
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

header .nav_m ul {
    display: flex;
    align-items: center;
    gap: 4px;
}

header .nav_m ul li {
    float: none;
    width: auto;
    line-height: 1;
    font-size: 15px;
}

header .nav_m ul li a {
    display: inline-block;
    width: auto;
    height: auto;
    line-height: 1;
    margin: 0;
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    color: var(--text);
    transition: var(--transition);
}

header .nav_m ul li a:hover {
    background: var(--bg-gray);
    color: var(--primary);
}

header .nav_m ul .cur a,
header .nav_m ul li.cur a {
    background: var(--primary);
    color: #fff;
}

header .nav_m ul .cur a:hover,
header .nav_m ul li.cur a:hover {
    background: var(--primary-dark);
    color: #fff;
}

.scroll-header .nav_m ul li a { margin-top: 0; }

.banner { margin-top: var(--header-h); }

.index_banner cite {
    bottom: 24px;
    margin-left: 0;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    background: rgba(0,0,0,.25);
    padding: 8px 14px;
    border-radius: 20px;
    backdrop-filter: blur(4px);
}

.index_banner cite span {
    float: none;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin: 0;
    background: rgba(255,255,255,.5);
    text-indent: -999em;
    transition: var(--transition);
}

.index_banner cite span:hover { background: rgba(255,255,255,.8); }

.index_banner cite span.cur {
    width: 28px;
    border-radius: 5px;
    background: #fff;
}

.bt_1, .bt_3, .bt_4 {
    padding: 4em 0 2em;
}

.bt_1 .txt_7, .bt_4 .txt_7 {
    font-size: 2em;
    font-weight: 700;
    color: var(--text);
    padding-bottom: .5em;
    letter-spacing: -.02em;
}

.bt_1 .txt_2, .bt_4 .txt_2 {
    color: var(--text-muted);
    font-size: 1.05em;
}

.bt_3 .txt_1, .bt_3 .txt_10 {
    font-size: 1.8em;
    font-weight: 700;
    color: var(--text);
    position: relative;
    display: inline-block;
}

.bt_3 .txt_1::after, .bt_3 .txt_10::after {
    content: "";
    display: block;
    width: 48px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 2px;
    margin: 12px auto 0;
}

.bt_3 .txt_10 { color: #fff; }
.bt_3 .txt_10::after { background: linear-gradient(90deg, #fff, var(--accent)); }

.section-divider {
    display: flex;
    justify-content: center;
    padding: 2em 0;
}

.section-divider img {
    opacity: .4;
    transition: var(--transition);
}

.section-divider:hover img { opacity: .7; transform: scale(1.1); }

.content_1 { margin: 60px auto 80px; }

.content_x {
    border-bottom: none;
    padding: 2em 0;
}

.business .box ul.items {
    display: flex;
    flex-wrap: nowrap;
    justify-content: space-between;
    gap: 20px;
    padding-bottom: 2em;
}

.business .box ul.items li {
    flex: 1 1 0;
    width: auto;
    min-width: 0;
    margin: 0;
    background: none;
    padding: 24px 20px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    overflow: visible;
}

.business .box ul.items li:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.business .box ul.items li img {
    width: 56px;
    height: 56px;
    object-fit: contain;
    margin-bottom: 8px;
}

.business .box ul.items li strong {
    font-size: 17px;
    font-weight: 600;
    color: var(--text);
    margin: 12px 0 8px;
}

.business .box ul.items li p {
    font-size: 13px;
    line-height: 1.7;
    color: var(--text-muted);
    background: none;
}

.bak_2 {
    margin: 48px 0;
    display: flex;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
}

.advantage_1 {
    width: 48%;
    float: none;
}

.advantage_1 dl dd h2 {
    font-size: 1.6em;
    font-weight: 700;
    color: var(--text);
}

.advantage_1 dl dd h3 {
    color: var(--primary);
    font-size: 1.1em;
    line-height: 1.8;
}

.advantage_1 dl dd p {
    color: var(--text-muted);
    line-height: 1.8;
}

.advantage_2, .advantage_3, .advantage_4 {
    width: 46%;
    float: none;
    min-height: 320px;
    border-radius: var(--radius);
    background-size: cover !important;
    background-position: center !important;
    box-shadow: var(--shadow);
}

.content_3 {
    background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 50%, #3b82f6 100%);
    padding: 60px 0 80px;
    margin-top: 0;
}

.style3 ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.style3 ul li {
    display: block;
    width: 260px;
    margin: 0;
    padding: 0;
    border: none;
    border-radius: var(--radius);
    overflow: hidden;
    background: rgba(255,255,255,.1);
    backdrop-filter: blur(8px);
    transition: var(--transition);
}

.style3 ul li:hover {
    transform: translateY(-8px);
    background: rgba(255,255,255,.18);
    box-shadow: var(--shadow-lg);
}

.style3 ul li a { display: block; }

.style3 ul li img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    transition: var(--transition);
}

.style3 ul li:hover img { transform: scale(1.05); }

.style3 ul li span {
    display: block;
    padding: 16px;
    color: #fff;
    font-size: 15px;
    font-weight: 500;
    text-align: center;
    background: rgba(0,0,0,.2);
}

.contact_fa .bak_4 {
    display: flex;
    gap: 32px;
    padding: 0;
}

.news_2 {
    width: 48%;
    float: none;
    flex: 1;
}

.news_3 {
    background: var(--bg);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    padding: 8px 0;
    overflow: hidden;
    width: 100%;
}

.news_list { padding: 0; }

.content_x.news_list {
    padding: 0;
    border-bottom: none;
}

.news_list dl {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
    transition: background .25s ease;
    font-size: 14px;
    width: 100%;
    box-sizing: border-box;
}

.news_list dl:last-child { border-bottom: none; }

.news_list dl:hover {
    background: var(--bg-gray);
}

.news_list dl dt {
    flex: 1;
    min-width: 0;
    width: auto;
    float: none;
    overflow: hidden;
}

.news_list dl dt a {
    display: block;
    color: var(--text);
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    transition: var(--transition);
}

.news_list dl dt a:hover { color: var(--primary); }

.news_list dl dd {
    flex-shrink: 0;
    width: auto;
    float: none;
    margin: 0;
    padding-left: 8px;
    color: var(--text-light);
    font-size: 13px;
    white-space: nowrap;
    text-align: right;
    line-height: 1.4;
}

.foot {
    background: var(--bg-dark);
    border-top: none;
    padding-top: 0;
}

.foot_m {
    display: flex;
    flex-wrap: wrap;
    gap: 32px;
    padding: 56px 0 40px;
    border-bottom: 1px solid rgba(255,255,255,.08);
}

.foot-list {
    width: auto;
    flex: 1;
    min-width: 180px;
    padding: 0;
    float: none;
    color: rgba(255,255,255,.65);
    font-size: 14px;
    line-height: 1.8;
}

.foot-list h2 {
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    padding-bottom: 16px;
    margin-bottom: 8px;
    position: relative;
}

.foot-list h2::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 32px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
}

.foot-case-list {
    height: auto;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255,255,255,.06) !important;
}

.foot-case-list dl {
    display: flex;
    align-items: center;
    gap: 12px;
}

.foot-case-list dl dt {
    float: none;
    width: auto;
    margin: 0;
}

.foot-case-list dl dt img {
    border: none;
    border-radius: var(--radius-sm);
    padding: 0;
    width: 64px;
    height: 44px;
    object-fit: cover;
}

.foot-case-list dl dd span { color: rgba(255,255,255,.8); }

.foot-list-nav {
    display: inline-block;
    width: auto;
    float: none;
    margin: 0 8px 8px 0;
    padding: 6px 16px;
    border: 1px solid rgba(255,255,255,.2);
    border-radius: 20px;
    color: rgba(255,255,255,.7);
    font-size: 13px;
    line-height: 1.5;
    height: auto;
    transition: var(--transition);
}

.foot-list-nav:hover {
    border-color: var(--primary-light);
    color: #fff;
    background: rgba(37,99,235,.2);
}

.foot-list-04 {
    text-align: left;
    color: rgba(255,255,255,.65);
}

.foot-list-04 h2 {
    color: #fff;
}

.foot-o { background: #0a0f1a; }

.foot-o-nav {
    color: rgba(255,255,255,.4) !important;
    font-size: 13px;
    padding: 20px 0;
}

.left-toolbar { display: none; }

.float-toolbar {
    position: fixed;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 99999;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
}

.float-toolbar__item {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-direction: row;
    gap: 0;
    height: 44px;
    width: 44px;
    min-width: 44px;
    max-width: 44px;
    padding: 0;
    border: none;
    border-radius: 22px;
    background: #fff;
    color: var(--text);
    box-shadow: 0 2px 16px rgba(15, 23, 42, .12);
    cursor: pointer;
    text-decoration: none;
    font-family: inherit;
    font-size: 13px;
    line-height: 1;
    overflow: hidden;
    white-space: nowrap;
    transition: width .35s cubic-bezier(.4, 0, .2, 1),
                max-width .35s cubic-bezier(.4, 0, .2, 1),
                gap .35s cubic-bezier(.4, 0, .2, 1),
                padding .35s cubic-bezier(.4, 0, .2, 1),
                background .25s ease,
                color .25s ease,
                box-shadow .25s ease,
                opacity .25s ease,
                transform .25s ease;
}

.float-toolbar__item:hover,
.float-toolbar__item:focus-visible {
    width: auto;
    max-width: 220px;
    flex-direction: row-reverse;
    justify-content: flex-start;
    gap: 8px;
    padding: 0 14px 0 18px;
    color: #fff;
    box-shadow: 0 6px 24px rgba(37, 99, 235, .35);
    outline: none;
}

.float-toolbar__item--chat:hover,
.float-toolbar__item--chat:focus-visible {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
}

.float-toolbar__item--phone:hover,
.float-toolbar__item--phone:focus-visible {
    background: linear-gradient(135deg, #059669, #047857);
}

.float-toolbar__item--top:hover,
.float-toolbar__item--top:focus-visible {
    background: linear-gradient(135deg, #475569, #334155);
}

.float-toolbar__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 22px;
    height: 22px;
}

.float-toolbar__icon svg {
    width: 20px;
    height: 20px;
    display: block;
}

.float-toolbar__text {
    opacity: 0;
    width: 0;
    max-width: 0;
    overflow: hidden;
    font-weight: 500;
    letter-spacing: .02em;
    transition: opacity .2s ease .05s, max-width .35s cubic-bezier(.4, 0, .2, 1);
}

.float-toolbar__item:hover .float-toolbar__text,
.float-toolbar__item:focus-visible .float-toolbar__text {
    opacity: 1;
    width: auto;
    max-width: 160px;
}

.float-toolbar__item--top {
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    pointer-events: none;
}

.float-toolbar__item--top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

@media (max-width: 768px) {
    .float-toolbar {
        right: 10px;
        top: auto;
        bottom: 24px;
        transform: none;
        gap: 8px;
    }

    .float-toolbar__item {
        height: 40px;
        width: 40px;
        min-width: 40px;
        max-width: 40px;
        padding: 0;
    }

    .float-toolbar__item:hover,
    .float-toolbar__item:focus-visible {
        width: auto;
        max-width: 180px;
        padding: 0 12px 0 14px;
    }

    .float-toolbar__icon svg {
        width: 18px;
        height: 18px;
    }
}

.content {
    background: var(--bg-gray);
    padding: 40px 0 60px;
}

.content-inset {
    border: none;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.content-info {
    padding: 24px 40px 40px;
    line-height: 1.9;
    color: var(--text);
}

.content-info img {
    border-radius: var(--radius-sm);
    margin: 16px 0;
}

.news_in4 {
    padding: 0 40px 16px;
    color: var(--text-muted);
    font-size: 14px;
}

.news_in4 a { color: var(--primary); }

.news_in1 ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
}

.news_in1 ul li {
    display: inline-block;
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 8px 20px;
    margin: 0;
    transition: var(--transition);
}

.news_in1 ul li:hover,
.news_in1 ul li.id1:hover {
    border-color: var(--primary);
    background: rgba(37,99,235,.06);
}

.news_in2 dl {
    display: flex;
    background: var(--bg);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    margin-bottom: 16px;
    height: auto;
    overflow: hidden;
    transition: var(--transition);
}

.news_in2 dl:hover {
    box-shadow: var(--shadow);
    border-color: var(--primary-light);
}

.news_in2 dl dt {
    width: 90px;
    flex-shrink: 0;
    float: none;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px 12px;
    height: auto;
}

.news_in2 dl dt .txt_25 { font-size: 1.6em; font-weight: 700; }
.news_in2 dl dt .txt_26 { font-size: .85em; opacity: .85; }

.news_in2 dl dd {
    flex: 1;
    float: none;
    width: auto;
    height: auto;
    padding: 20px 24px;
}

.news_in2 dl dd a b {
    font-size: 16px;
    color: var(--text);
    transition: var(--transition);
}

.news_in2 dl dd a:hover b { color: var(--primary); }

.news_in2 dl dd p {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.7;
}

.page {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 0 48px;
    text-align: center;
}

.page .pagination {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.page ul.pagination li,
.page .pagination li {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: auto;
    height: auto;
    margin: 0;
    padding: 0;
    border: none;
    background: none;
    float: none;
}

.page ul.pagination li:hover,
.page .pagination li:hover {
    border: none;
    background: none;
}

.page .pagination li a,
.page ul.pagination li a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 14px;
    margin: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--text);
    font-size: 13px;
    line-height: 1;
    text-decoration: none;
    white-space: nowrap;
    box-sizing: border-box;
    transition: var(--transition);
}

.page .pagination li a:hover {
    border-color: var(--primary);
    background: var(--primary);
    color: #fff;
}

.page .pagination li.active a {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    font-weight: 600;
}

.page .pagination li.active a:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
}

.page .jbtn {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.page span {
    display: inline-block;
    margin-left: 10px;
    color: var(--text-muted);
    line-height: 36px;
    font-size: 13px;
}

@media (max-width: 1024px) {
    .business .box ul.items {
        flex-wrap: wrap;
    }

    .business .box ul.items li {
        flex: 1 1 calc(50% - 10px);
        min-width: calc(50% - 10px);
    }

    .advantage_1, .advantage_2, .advantage_3, .advantage_4 {
        width: 100%;
    }
    .advantage_2, .advantage_3, .advantage_4 { display: block; min-height: 240px; }
    .contact_fa .bak_4 { flex-direction: column; }
    .news_2 { width: 100%; }
}

@media (max-width: 940px) {
    header .nav_m { display: none; }

    header .nav_1 {
        display: flex;
        align-items: center;
        flex-shrink: 0;
        position: relative;
        z-index: 100001;
    }

    .mobile-menu-btn {
        position: relative;
        width: 44px;
        height: 44px;
        padding: 0;
        margin: 0;
        border: none;
        background: transparent;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .mobile-menu-btn span {
        position: relative;
        display: block;
        width: 22px;
        height: 2px;
        background: var(--text);
        border-radius: 2px;
        transition: background .25s ease;
    }

    .mobile-menu-btn span::before,
    .mobile-menu-btn span::after {
        content: '';
        position: absolute;
        left: 0;
        width: 22px;
        height: 2px;
        background: var(--text);
        border-radius: 2px;
        transition: transform .25s ease, top .25s ease, bottom .25s ease;
    }

    .mobile-menu-btn span::before { top: -7px; }
    .mobile-menu-btn span::after { bottom: -7px; }

    body.mobile-menu-open .mobile-menu-btn span { background: transparent; }
    body.mobile-menu-open .mobile-menu-btn span::before {
        top: 0;
        transform: rotate(45deg);
    }
    body.mobile-menu-open .mobile-menu-btn span::after {
        bottom: 0;
        transform: rotate(-45deg);
    }

    .mobile-menu-overlay {
        position: fixed;
        inset: 0;
        top: var(--header-h);
        background: rgba(15, 23, 42, .45);
        z-index: 100000;
        opacity: 0;
        visibility: hidden;
        transition: opacity .3s ease, visibility .3s ease;
    }

    header.scroll-header .mobile-menu-overlay {
        top: 64px;
    }

    body.mobile-menu-open .mobile-menu-overlay {
        opacity: 1;
        visibility: visible;
    }

    .mobile-menu {
        position: fixed;
        top: var(--header-h);
        right: -280px;
        width: 280px;
        height: calc(100vh - var(--header-h));
        background: #fff;
        box-shadow: -8px 0 32px rgba(15, 23, 42, .12);
        z-index: 100002;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        transition: right .35s cubic-bezier(.4, 0, .2, 1);
    }

    header.scroll-header .mobile-menu {
        top: 64px;
        height: calc(100vh - 64px);
    }

    body.mobile-menu-open .mobile-menu {
        right: 0;
    }

    body.mobile-menu-open {
        overflow: hidden;
    }

    .mobile-menu-list {
        list-style: none;
        margin: 0;
        padding: 8px 0;
    }

    .mobile-menu-list li {
        border-bottom: 1px solid var(--border);
    }

    .mobile-menu-list li:last-child {
        border-bottom: none;
    }

    .mobile-menu-list li a {
        display: block;
        padding: 14px 24px;
        font-size: 16px;
        color: var(--text);
        text-decoration: none;
        transition: background .2s ease, color .2s ease;
    }

    .mobile-menu-list li a:hover {
        color: var(--primary);
        background: var(--bg-gray);
    }

    .mobile-menu-list li.cur a {
        color: var(--primary);
        font-weight: 600;
        background: rgba(37, 99, 235, .06);
    }

    .mobile-lang-switch {
        padding: 16px 20px;
        border-bottom: 1px solid var(--border);
    }

    .mobile-lang-list {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        list-style: none;
        margin: 0;
        padding: 0;
    }

    .mobile-lang-list li a {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 8px 14px;
        font-size: 14px;
        color: var(--text);
        text-decoration: none;
        border: 1px solid var(--border);
        border-radius: 20px;
        transition: all .2s ease;
    }

    .mobile-lang-list li a:hover {
        color: var(--primary);
        border-color: var(--primary);
        background: rgba(37, 99, 235, .06);
    }

    .mobile-lang-list li.is-active a {
        color: var(--primary);
        font-weight: 600;
        border-color: var(--primary);
        background: rgba(37, 99, 235, .08);
    }

    .foot { display: block !important; }
    .foot_m { flex-direction: column; gap: 24px; }
    .foot-list { min-width: 100%; }
}

@media (max-width: 720px) {
    .bt_1 .txt_7, .bt_4 .txt_7 { font-size: 1.5em; }
    .business .box ul.items li {
        flex: 1 1 100%;
        min-width: 100%;
        max-width: 100%;
    }
    .style3 ul li { width: calc(50% - 10px); }
    .content-info { padding: 16px 20px 32px; }
    .news_in2 dl { flex-direction: column; }
    .news_in2 dl dt {
        width: 100%;
        flex-direction: row;
        gap: 12px;
        padding: 12px 20px;
    }
}

@media (max-width: 480px) {
    .style3 ul li { width: 100%; }
    header .logo { max-width: 160px; }
}

/* 多语言切换（下拉） */
.lang-switch {
    position: relative;
    margin-left: 16px;
}
.lang-switch-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    font-size: 13px;
    color: var(--primary, #2563eb);
    background: rgba(37, 99, 235, .06);
    border: 1px solid var(--primary, #2563eb);
    border-radius: 6px;
    cursor: pointer;
    transition: all .2s;
    line-height: 1.4;
}
.lang-switch-btn:hover,
.lang-switch.is-open .lang-switch-btn {
    background: rgba(37, 99, 235, .1);
}
.lang-switch-label {
    font-weight: 500;
}
.lang-switch-arrow {
    width: 0;
    height: 0;
    margin-left: 2px;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 5px solid currentColor;
    transition: transform .2s;
}
.lang-switch.is-open .lang-switch-arrow {
    transform: rotate(180deg);
}
.lang-switch-menu {
    display: none;
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    min-width: 140px;
    margin: 0;
    padding: 6px 0;
    list-style: none;
    background: #fff;
    border: 1px solid var(--border, #e2e8f0);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(15, 23, 42, .12);
    z-index: 120;
}
.lang-switch.is-open .lang-switch-menu {
    display: block;
}
.lang-switch-menu li a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    font-size: 13px;
    color: var(--text-muted, #64748b);
    text-decoration: none;
    transition: all .15s;
    white-space: nowrap;
}
.lang-switch-menu li a:hover {
    color: var(--primary, #2563eb);
    background: rgba(37, 99, 235, .06);
}
.lang-switch-menu li.is-active a {
    color: var(--primary, #2563eb);
    font-weight: 600;
    background: rgba(37, 99, 235, .08);
}
.website-lang-flag {
    display: inline-block;
    font-size: 16px;
    line-height: 1;
}
.mobile-lang-switch {
    display: none;
}
@media (max-width: 940px) {
    .lang-switch { display: none; }
    .mobile-lang-switch { display: block; }
}