/* Mimantec Site Styles - Replica */
:root {
    --primary: #c8161d;
    --primary-dark: #a01218;
    --text: #333;
    --text-light: #999;
    --bg: #fff;
    --border: #e5e5e5;
    --container: 1200px;
    --page-sidebar-ratio: 25%;
    --page-layout-gap: 30px;
    --hero-height-max: 800px;
    --hero-height-min: 200px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.miman-body {
    font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    overflow-x: hidden;
}
a { text-decoration: none; color: inherit; transition: color 0.3s, opacity 0.3s; }
img { max-width: 100%; height: auto; display: block; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 15px; }
@media (min-width: 1200px) {
    .container { max-width:1920px; }
}

/* Header */
.site-header { position: relative; z-index: 100; background: #fff;  margin: 0 auto;}
.header-top { background: #fff; padding: 18px 0 12px; }
.header-top-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.header-col { min-width: 0; }
.header-logo { flex: 0 0 auto; max-width: 271px; }
.header-logo a { display: inline-block; }
.header-logo img { height: 38px; width: auto; max-width: 100%; }
.header-right {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 18px;
    min-width: 0;
}
.header-search { flex: 1; max-width: 408px; min-width: 0; }
.search-item {
    display: flex;
    align-items: stretch;
    height: 37px;
    border: 1px solid #000;
    border-radius: 34px;
    overflow: hidden;
    background: #fff;
}
.search-input-panel { flex: 1; min-width: 0; }
.search-input {
    width: 100%;
    height: 100%;
    border: none;
    outline: none;
    padding: 0 18px;
    font-size: 14px;
    color: var(--text);
    background: #fff;
    border-radius: 34px 0 0 34px;
}
.search-btn-panel { flex-shrink: 0; }
.search-btn {
    width: 50px;
    height: 100%;
    border: none;
    background: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #333;
    border-radius: 0 34px 34px 0;
    transition: color 0.3s;
}
.search-btn:hover { color: var(--primary); }
.search-icon { display: flex; align-items: center; justify-content: center; }
.lang-switch {
    position: relative;
    flex-shrink: 0;
    cursor: pointer;
}
.lang-current {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-width: 82px;
    height: 40px;
    padding: 0 5px;
    background: #fff;
    color: var(--text);
}
.lang-icon-box {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    flex-shrink: 0;
}
.lang-icon, .lang-globe {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #666;
}
.lang-globe { color: #fff; }
.lang-text {
    font-size: 12px;
    line-height: 18px;
    margin: 0 8px;
    white-space: nowrap;
}
.lang-arrow {
    font-size: 8px;
    color: #999;
    line-height: 1;
}
.lang-switch:hover .lang-dropdown,
.lang-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.lang-dropdown {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    background: #fff;
    border: 1px solid #eee;
    border-radius: 5px;
    box-shadow: 0 0 18px 10px rgba(0,0,0,0.09);
    min-width: 110px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: all 0.25s;
    z-index: 120;
    overflow: hidden;
}
.lang-dropdown a {
    display: block;
    padding: 10px 16px;
    text-align: center;
    font-size: 12px;
}
.lang-dropdown a:hover, .lang-dropdown a.active {
    background: #f6f6f6;
    color: var(--primary);
}

/* Mobile Header */
.mobile-header,
.mobile-lang-dropdown,
.mobile-lang-mask,
.mobile-nav-overlay,
.mobile-nav-panel { display: none; }

/* Navigation */
.site-nav { background: #fff; border-bottom: 1px solid var(--border); }
.site-nav .container { max-width: 100%; }
.nav-list {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: nowrap;
    list-style: none;
}
.nav-item { position: relative; flex-shrink: 0; }
.nav-link {
    display: block;
    padding: 18px 40px;
    font-size: 15px;
    color: var(--text);
    position: relative;
    transition: color 0.3s;
    white-space: nowrap;
}
html[lang="en"] .nav-link {
    padding-left: 10px;
    padding-right: 10px;
    font-size: 13px;
}
.nav-link::before {
    content: ''; position: absolute; bottom: 0; left: 50%; width: 0; height: 3px;
    background: var(--primary); transition: all 0.3s; transform: translateX(-50%);
}
.nav-item:hover .nav-link, .nav-link:hover { color: var(--primary); }
.nav-item:hover .nav-link::before { width: 100%; }
.nav-item.active > .nav-link,
.nav-link.active { color: var(--primary); }
.nav-item.active > .nav-link::before,
.nav-link.active::before { width: 100%; }
.sub-nav {
    position: absolute; top: 100%; left: 0; background: #fff; min-width: 180px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1); list-style: none;
    opacity: 0; visibility: hidden; transform: translateY(10px); transition: all 0.3s; z-index: 50;
}
.nav-item:hover .sub-nav { opacity: 1; visibility: visible; transform: translateY(0); }
.sub-nav a { display: block; text-align: center; padding: 12px 20px; font-size: 14px; border-bottom: 1px solid #f5f5f5; }
.sub-nav a:hover, .sub-nav a.active { background: #fafafa; color: var(--primary); }

/* Hero Slider - reference banners are 1920x600 (aspect 16:5) */
.hero-slider { position: relative; overflow: hidden; }
.hero-swiper {
    width: 100%;
    height: clamp(var(--hero-height-min), 31.25vw, var(--hero-height-max));
}
.hero-swiper .swiper-wrapper,
.hero-swiper .swiper-slide { height: 100%; }
.hero-swiper .swiper-slide { position: relative; overflow: hidden; }
.swiper-button-prev::after,
.swiper-button-next::after {
    content: none !important;
}
.swiper-button-prev::before,
.swiper-button-next::before {
    content: "\e806";
    font-family: "iconfont" !important;
    position: absolute;
    top: 50%;
    left: 50%;
    line-height: 1;
    font-size: 30px;
    color: inherit;
    transform: translate(-50%, -50%);
    -webkit-transform: translate(-50%, -50%);
}
.swiper-button-next::before {
    transform: translate(-50%, -50%) scaleX(-1);
    -webkit-transform: translate(-50%, -50%) scaleX(-1);
}
.slide-link { display: block; width: 100%; height: 100%; position: relative; }
.slide-bg { width: 100%; height: 100%; object-fit: cover; }
.slide-content {
    position: absolute; left: 0; top: 50%; transform: translateY(-50%);
    padding-left: 60px; max-width: 600px; z-index: 2;
}
.slide-subtitle { font-size: 16px; color: #666; letter-spacing: 1px; margin-bottom: 12px; text-transform: uppercase; }
.slide-title { font-size: 42px; color: var(--primary); font-weight: bold; line-height: 1.3; margin-bottom: 16px; }
.slide-desc { font-size: 14px; color: #888; line-height: 1.8; }
.hero-prev, .hero-next {
    width: 50px; height: 50px; background: rgba(0,0,0,0.3); border-radius: 50%;
    color: #fff; transition: background 0.3s;
}
.hero-prev:hover, .hero-next:hover { background: rgba(200,22,29,0.8); }
.hero-pagination .swiper-pagination-bullet { width: 10px; height: 10px; background: #ccc; opacity: 1; }
.hero-pagination .swiper-pagination-bullet-active { background: var(--primary); }

/* Category Section */
.category-section { padding: 60px 0; background: #fff; }
.category-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.category-card {
    position: relative; overflow: hidden; border-radius: 4px;
    transition: transform 0.4s, box-shadow 0.4s;
}
.category-card:hover { transform: translateY(-8px); box-shadow: 0 12px 30px rgba(0,0,0,0.12); }
.category-bg { position: relative; height: 280px; overflow: hidden; }
.category-img, .category-img-hover {
    width: 100%; height: 100%; object-fit: cover; transition: opacity 0.5s, transform 0.5s;
}
.category-img-hover { position: absolute; top: 0; left: 0; opacity: 0; }
.category-card:hover .category-img { opacity: 0; transform: scale(1.05); }
.category-card:hover .category-img-hover { opacity: 1; transform: scale(1.05); }
.category-info { text-align: center; padding: 24px 10px; background: #fff; }
.category-number {
    width: 60px; height: 60px; border: 2px solid var(--primary); border-radius: 50%;
    display: flex; align-items: center; justify-content: center; margin: -50px auto 16px;
    background: #fff; position: relative; z-index: 2;
    transition: background 0.3s, color 0.3s;
}
.category-number span { font-size: 20px; font-weight: bold; color: var(--primary); }
.category-card:hover .category-number { background: var(--primary); }
.category-card:hover .category-number span { color: #fff; }
.category-name { font-size: 18px; font-weight: bold; margin-bottom: 10px; }
.category-line { width: 40px; height: 3px; background: var(--primary); margin: 0 auto; transition: width 0.3s; }
.category-card:hover .category-line { width: 60px; }

/* Advantages Section */
.advantages-section {
    position: relative;
    padding: 70px 0 80px;
    background: #f5f5f5;
    overflow: hidden;
}
.advantages-watermark {
    position: absolute;
    top: 48px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 40px;
    font-weight: bold;
    color: #f2f2f2;
    letter-spacing: 2px;
    pointer-events: none;
    white-space: nowrap;
    z-index: 0;
}
.advantages-header {
    position: relative;
    z-index: 1;
    text-align: center;
    margin-bottom: 48px;
}
.advantages-title {
    font-size: 36px;
    line-height: 1.5;
    color: #333;
    font-weight: 400;
    margin-bottom: 6px;
}
.advantages-subtitle {
    font-size: 18px;
    color: #666;
    line-height: 1.5;
}
.advantages-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.advantage-card {
    min-height: 366px;
    perspective: 1200px;
}
.advantage-flip {
    position: relative;
    width: 100%;
    min-height: 366px;
    transform-style: preserve-3d;
    transition: transform 0.6s ease;
    will-change: transform;
}
.advantage-face {
    position: absolute;
    inset: 0;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    transform: translate3d(0, 0, 0);
}
.advantage-face-front {
    background: #fff;
    z-index: 2;
}
.advantage-face-back {
    background: var(--primary);
    color: #fff;
    transform: rotateY(180deg);
    box-shadow: 0 12px 30px rgba(200, 22, 29, 0.25);
}
@media (hover: hover) and (pointer: fine) {
    .advantage-card:hover .advantage-flip {
        transform: rotateY(180deg);
    }
}
.advantage-body {
    padding: 36px 24px 30px;
    text-align: center;
    height: 100%;
    min-height: 366px;
    box-sizing: border-box;
}
.advantage-icon {
    width: 70px;
    height: 55px;
    margin: 0 auto 18px;
}
.advantage-icon img {
    width: 70px;
    height: 55px;
    object-fit: contain;
    margin: 0 auto;
}
.advantage-title {
    font-size: 22px;
    line-height: 1.5;
    font-weight: 400;
    margin-bottom: 10px;
    color: inherit;
}
.advantage-en {
    font-size: 16px;
    line-height: 1.5;
    color: #666;
    margin: 5px 0 0;
}
.advantage-face-back .advantage-en,
.advantage-face-back .advantage-title,
.advantage-face-back .advantage-desc,
.advantage-face-back .advantage-divider {
    color: #fff;
}
.advantage-divider {
    margin: 0;
    padding: 0;
    line-height: 2;
    font-size: 14px;
    color: #999;
    letter-spacing: 2px;
}
.advantage-desc {
    font-size: 18px;
    line-height: 2;
    color: #666;
    margin: 0;
}
.advantage-face-front .advantage-desc {
    color: #666;
}
.advantage-face-back .advantage-desc {
    color: #fff;
}

/* Company Intro Section */
.company-section { background: #fff; }
.company-tech-block { display: none; }
.company-tech-header {
    text-align: center;
    padding: 60px 0 36px;
}
.company-tech-title {
    font-size: 36px;
    line-height: 1.5;
    color: #262626;
    font-weight: 400;
    margin-bottom: 8px;
}
.company-divider {
    margin: 24px 0 16px;
    line-height: 0;
}
.company-divider img {
    display: inline-block;
    width: 40px;
    height: 2px;
    object-fit: cover;
}
.company-tech-desc {
    max-width: 720px;
    margin: 0 auto;
    font-size: 14px;
    line-height: 1.75;
    color: #7f7f7f;
}
.company-banner {
    width: 100%;
    overflow: hidden;
}
.company-banner img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}
.company-about {
    position: relative;
    padding: 70px 0 80px;
    background: #fff;
    overflow: hidden;
}
.company-about-watermark {
    position: absolute;
    top: 48px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 36px;
    font-weight: 400;
    color: #333;
    letter-spacing: 2px;
    pointer-events: none;
    white-space: nowrap;
    z-index: 0;
}
.company-about-header {
    position: relative;
    z-index: 1;
    text-align: center;
    margin-bottom: 48px;
}
.company-about-desc {
    max-width: 720px;
    margin: 0 auto;
    font-size: 12px;
    line-height: 2;
    color: #a5a5a5;
}
.company-stats-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin: 0 auto;
}
.company-stat-item { text-align: center; }
.company-stat-circle {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    border-radius: 50%;
    border: 3px solid var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: #fff;
}
.company-stat-circle::before {
    content: '';
    position: absolute;
    inset: 6px;
    border-radius: 50%;
    border: 1px solid rgba(200, 22, 29, 0.15);
}
.company-stat-value {
    font-size: 32px;
    font-weight: bold;
    color: var(--primary);
    line-height: 1;
}
.company-stat-value small {
    font-size: 16px;
    font-weight: normal;
}
.company-stat-title {
    font-size: 16px;
    color: #333;
    font-weight: bold;
    margin-bottom: 10px;
    line-height: 1.4;
}
.company-stat-desc {
    font-size: 12px;
    line-height: 1.75;
    color: #666;
    max-width: 240px;
    margin: 0 auto;
}

/* Home News Section */
.home-news-section { padding: 60px 0 80px; background: #fff; }
.home-news-header { text-align: center; margin-bottom: 40px; }
.home-news-title {
    font-size: 36px;
    line-height: 1.75;
    color: #333;
    font-weight: 400;
}
.home-news-line { margin: 8px 0; line-height: 0; }
.home-news-line img { display: inline-block; max-height: 6px; width: auto; }
.home-news-sub {
    font-size: 12px;
    color: #7f7f7f;
    letter-spacing: 1px;
    line-height: 1.75;
}
.home-news-container {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    margin: 0 -9px;
    padding: 0;
}
.home-news-item {
    width: calc(25% - 18px);
    margin: 0 9px 24px;
}
.home-news-card {
    display: block;
    color: #333;
    transition: color 0.3s;
}
.home-news-img {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    background: #f7f7f7;
    overflow: hidden;
}
.home-news-img img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s;
}
.home-news-card:hover .home-news-img img { transform: scale(1.05); }
.home-news-tit { padding: 12px 2px 0; }
.home-news-card-title {
    font-size: 16px;
    line-height: 24px;
    margin-bottom: 6px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: #333;
    transition: color 0.3s;
}
.home-news-card:hover .home-news-card-title { color: var(--primary); }
.home-news-tit time { font-size: 14px; color: #666; display: block; }

.btn-more {
    display: inline-block; padding: 10px 36px; border: 1px solid var(--primary);
    color: var(--primary); border-radius: 25px; transition: all 0.3s;
}
.btn-more:hover { background: var(--primary); color: #fff; }

/* Footer */
.site-footer { background: #1b1b1b; color: #d8d8d8; }
.footer-main { padding: 36px 0 28px; }
.footer-inner {
    display: grid;
    grid-template-columns: 2fr 6fr 2fr 2fr;
    gap: 20px;
    align-items: start;
    text-align: left;
}
.footer-logo a { display: inline-block; }
.footer-logo img {
    max-width: 132px;
    width: 100%;
    height: auto;
}
.footer-center { min-width: 0; }
.footer-nav {
    line-height: 3;
    margin-bottom: 4px;
}
.footer-nav a {
    color: #d8d8d8;
    font-size: 14px;
    text-decoration: none;
}
.footer-nav a:hover { color: #fff; }
.footer-nav .sep {
    margin: 0 2px;
    color: #d8d8d8;
    font-size: 14px;
}
.footer-contact p {
    margin: 0;
    font-size: 14px;
    line-height: 2;
    color: #d8d8d8;
}
.footer-qr-col .qr-item,
.footer-mobile-follow .qr-item { text-align: center; }
.footer-qr-col .qr-item img,
.footer-mobile-follow .qr-item img {
    width: 123px;
    height: 124px;
    margin: 0 auto 8px;
    display: block;
    background: #fff;
}
.footer-qr-col .qr-item span,
.footer-mobile-follow .qr-item span {
    font-size: 12px;
    color: #d8d8d8;
}
.footer-mobile-follow { display: none; }
.footer-follow-title {
    font-size: 14px;
    color: #f2f2f2;
    font-weight: 400;
    margin: 0 0 14px;
    text-align: center;
}
.footer-qr-list {
    display: flex;
    justify-content: center;
    gap: 24px;
}
.footer-copyright {
    background: #1b1b1b;
    padding: 16px 0 20px;
    text-align: center;
    font-size: 14px;
    color: #7f7f7f;
}
.footer-copyright p { margin: 0; line-height: 1.5; }

/* Mobile Footer Nav */
.mobile-foot-nav { display: none; }

/* Float Sidebar */
.float-sidebar {
    position: fixed;
    right: 60px;
    bottom: 100px;
    z-index: 4001;
}
.float-sidebar-btns {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.sidebar-btn {
    width: 50px;
    height: 50px;
    border: none;
    border-radius: 50%;
    background: #fff;
    color: #999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    padding: 0;
    transition: color 0.3s, box-shadow 0.3s;
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.08);
}
.sidebar-btn:hover,
.sidebar-btn.is-active { color: var(--primary); }
.sidebar-btn-top { color: var(--primary); }
.sidebar-btn-top .sidebar-btn-label {
    font-size: 10px;
    line-height: 1;
    margin-top: 2px;
    font-weight: 700;
}
.float-sidebar-panels {
    position: absolute;
    right: 60px;
    bottom: 0;
    width: 0;
    height: 0;
}
.sidebar-panel {
    position: absolute;
    right: 0;
    bottom: 0;
    width: 220px;
    background: #fff;
    border-radius: 4px;
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.12);
    padding: 14px 16px;
    opacity: 0;
    visibility: hidden;
    transform: translateX(8px);
    transition: all 0.25s ease;
    pointer-events: none;
}
.sidebar-panel.is-active {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
    pointer-events: auto;
}
.sidebar-panel-title {
    font-size: 14px;
    color: #333;
    font-weight: 600;
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid #f0f0f0;
}
.sidebar-panel-desc {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
    margin: 0 0 10px;
}
.sidebar-panel-link,
.sidebar-panel-value {
    font-size: 14px;
    color: var(--primary);
    word-break: break-all;
}
.sidebar-panel-row { margin-bottom: 8px; }
.sidebar-panel-row:last-child { margin-bottom: 0; }
.sidebar-panel-label {
    display: block;
    font-size: 12px;
    color: #999;
    margin-bottom: 4px;
}
.sidebar-panel-qr { text-align: center; }
.sidebar-panel-qr img { width: 140px; height: 140px; display: block; margin: 0 auto; }

/* Page Content */
.page-banner { background: linear-gradient(135deg, #f5f5f5, #fff); padding: 50px 0; text-align: center; }
.page-title { font-size: 32px; color: var(--primary); }
.page-subtitle { color: var(--text-light); margin-top: 10px; }
.page-content { padding: 50px 0 80px; }
.content-box { background: #fff; padding: 40px; border-radius: 4px; box-shadow: 0 2px 12px rgba(0,0,0,0.05); line-height: 1.8; }
.product-image { text-align: center; margin-bottom: 30px; }
.product-image img { max-height: 400px; margin: 0 auto; }
.product-desc { font-size: 16px; color: var(--text-light); margin-bottom: 20px; }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.product-card { background: #fff; border-radius: 4px; overflow: hidden; box-shadow: 0 2px 8px rgba(0,0,0,0.06); transition: transform 0.3s, box-shadow 0.3s; padding-bottom: 16px; }
.product-card:hover { transform: translateY(-4px); box-shadow: 0 8px 20px rgba(0,0,0,0.1); }
.product-card img { width: 100%; height: 200px; object-fit: cover; }
.product-card h3 { padding: 12px 16px 4px; font-size: 16px; }
.product-card p { padding: 0 16px; font-size: 13px; color: var(--text-light); }
.no-data { text-align: center; color: var(--text-light); padding: 40px; grid-column: 1/-1; }

/* Product Category Page */
.product-hero-banner { position: relative; height: 297px; overflow: hidden; }
.product-hero-bg {
    position: absolute; inset: 0;
    background-size: cover; background-position: center;
}
.product-hero-overlay {
    position: relative; z-index: 1; height: 100%;
    display: flex; align-items: center; justify-content: center;
    background: rgba(0, 0, 0, 0.15);
}
.product-hero-overlay .container { text-align: center; }
.product-hero-title { font-size: 26px; color: #fff; font-weight: 400; margin-bottom: 8px; }
.product-hero-line { margin: 8px 0; }
.product-hero-line img { display: inline-block; height: 4px; width: auto; margin: 0 auto; }
.product-hero-desc { font-size: 16px; color: #d8d8d8; }

.product-breadcrumb { background: #fff; padding: 0; }
.breadcrumb-list {
    list-style: none; display: flex; flex-wrap: wrap; align-items: center;
    padding: 10px 0; margin: 0; font-size: 14px; color: #333;
}
.breadcrumb-item { display: flex; align-items: center; }
.breadcrumb-item:not(:last-child)::after { content: '>'; margin: 0 8px; color: #999; }
.breadcrumb-link { color: #333; }
.breadcrumb-link:hover { color: var(--primary); }
.breadcrumb-current { color: #333; }

.product-category-page { padding: 30px 0 60px; background: #fff; }
.product-layout {
    display: grid;
    grid-template-columns: minmax(0, var(--page-sidebar-ratio)) minmax(0, 1fr);
    column-gap: var(--page-layout-gap);
    align-items: start;
}
.product-sidebar { width: 100%; min-width: 0; background: #fff; }
.sidebar-head {
    display: flex; align-items: center; justify-content: space-between;
    height: 50px; line-height: 50px; padding: 0 15px;
    background: #bc1e21; color: #fff;
}
.sidebar-head-text { font-size: 14px; }
.sidebar-head-icon { font-size: 12px; opacity: 0.8; }
.sidebar-nav { border: 1px solid #eee; border-top: none; }
.sidebar-group { border-bottom: 1px solid #eee; }
.sidebar-group:last-child { border-bottom: none; }
.sidebar-group-row {
    display: flex; align-items: center; justify-content: space-between;
    min-height: 44px; padding: 0 15px;
}
.sidebar-group-link {
    flex: 1; font-size: 14px; color: #333; line-height: 44px;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.sidebar-group-link:hover, .sidebar-group.open .sidebar-group-link,
.sidebar-group.is-current .sidebar-group-link { color: var(--primary); }
.sidebar-toggle {
    width: 24px; height: 24px; border: none; background: none;
    color: #999; font-size: 18px; line-height: 1; cursor: pointer; flex-shrink: 0;
    transition: transform 0.3s, color 0.3s;
}
.sidebar-group.open .sidebar-toggle { transform: rotate(45deg); color: var(--primary); }
.sidebar-sub { display: none; background: #fafafa; border-top: 1px solid #f0f0f0; }
.sidebar-group.open .sidebar-sub { display: block; }
.sidebar-sub-link {
    display: block; padding: 10px 15px 10px 25px;
    font-size: 14px; color: #666; line-height: 1.5;
}
.sidebar-sub-link:hover, .sidebar-sub-link.active { color: var(--primary); }

@media (min-width: 768px) {
    .sidebar-group.is-current .sidebar-sub { display: block; }
    .sidebar-group.is-current .sidebar-toggle { transform: rotate(45deg); color: var(--primary); }
}

.product-main { min-width: 0; }
.pro-container {
    list-style: none; display: flex; flex-wrap: wrap;
    margin: 0 -9px; padding: 0;
}
.pro-item {
    width: calc(33.333% - 18px); margin: 0 9px 18px;
    background: #f7f7f7; padding: 10px 10px 27px;
}
.pro-item-link { display: block; color: #333; }
.pro-img {
    position: relative; width: 100%; padding-bottom: 100%;
    background: #fff; overflow: hidden;
}
.pro-img img {
    position: absolute; inset: 0; width: 100%; height: 100%;
    object-fit: contain; transition: transform 0.4s;
}
.pro-item-link:hover .pro-img img { transform: scale(1.05); }
.pro-tit { margin-top: 12px; }
.pro-name { font-size: 16px; color: #333; line-height: 24px; text-align: center; }
.product-empty { text-align: center; color: #999; padding: 60px 20px; }

/* Product Detail Page */
.product-detail-page { padding: 30px 0 60px; background: #fff; }
.product-detail-wrap { max-width: 1200px; }
.product-detail-main { width: 100%; }
.product-gallery-block { margin-bottom: 0; }
.product-gallery-main {
    position: relative; width: 100%; height: 580px;
    background: #fff; overflow: hidden;
}
.product-gallery-main .swiper-slide { height: 580px; }
.gallery-slide-inner {
    width: 100%; height: 100%; display: flex;
    align-items: center; justify-content: center; padding: 20px;
}
.gallery-slide-inner img { max-width: 100%; max-height: 100%; object-fit: contain; }
.product-gallery-main .gallery-prev,
.product-gallery-main .gallery-next {
    width: 40px; height: 40px; margin-top: -20px;
    background: rgba(255,255,255,0.8); border-radius: 50%;
    color: #666; box-shadow: 0 1px 4px rgba(0,0,0,0.15);
}
.product-gallery-main .gallery-prev::before,
.product-gallery-main .gallery-next::before { font-size: 18px; }
.product-gallery-main .gallery-pagination {
    bottom: 10px !important;
}
.product-gallery-main .swiper-pagination-bullet {
    width: 30px; height: 4px; border-radius: 2px;
    background: #ccc; opacity: 1;
}
.product-gallery-main .swiper-pagination-bullet-active { background: #999; }

.product-toolbar {
    position: relative; display: flex; align-items: center;
    justify-content: space-between; height: 48px; margin-top: 0;
}
.pro-btn-share {
    display: inline-flex; align-items: center; gap: 8px;
    border: none; background: none; cursor: pointer;
    font-size: 14px; color: #666; padding: 0;
}
.pro-btn-share:hover { color: var(--primary); }
.share-icon { font-size: 16px; }
.product-toolbar .share-dropdown {
    display: none; position: absolute; top: 100%; left: 0;
    margin-top: 4px; background: #fff; border-radius: 4px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.12); padding: 8px 0;
    min-width: 140px; z-index: 10;
}
.product-toolbar .share-dropdown.show { display: block; }
.product-toolbar .share-dropdown a,
.product-toolbar .share-dropdown button {
    display: block; width: 100%; text-align: left;
    padding: 8px 16px; font-size: 13px; color: #666;
    background: none; border: none; cursor: pointer;
}
.product-toolbar .share-dropdown a:hover,
.product-toolbar .share-dropdown button:hover { background: #f5f5f5; color: var(--primary); }
.product-nav-btns { display: flex; align-items: center; gap: 20px; }
.change-btn { font-size: 16px; color: #666; cursor: pointer; }
.change-btn a { color: #666; }
.change-btn a:hover, .change-back:hover { color: var(--primary); }

.product-detail-main .pro-name {
    font-size: 24px; font-weight: 400; color: #333;
    line-height: 36px; margin: 10px 0 8px;
}
.product-detail-main .pro-desc {
    font-size: 12px; color: #666; line-height: 1.8;
    margin-bottom: 32px;
}
.product-particulars { margin-top: 0; }
.product-particulars + .product-particulars { margin-top: 0; }
.param-top {
    background: #f8f8f9; padding: 12px; margin-bottom: 0;
}
.param-title {
    font-size: 18px; font-weight: 400; color: #333;
    line-height: 20px; margin: 0;
}
.param-content,
.particulars-main { padding: 20px 12px; line-height: 1.8; color: #333; }
.param-content img,
.particulars-main img { max-width: 100%; height: auto; display: block; margin: 0 auto; }
.particulars-main table { width: 100%; border-collapse: collapse; margin: 0 auto; }
.particulars-main table td,
.particulars-main table th {
    border: 1px solid #e5e5e5; padding: 8px 12px; font-size: 14px;
}

/* Shared Page Hero & Breadcrumb */
.page-hero-banner { position: relative; height: 297px; overflow: hidden; }
.page-hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.page-hero-overlay {
    position: relative; z-index: 1; height: 100%;
    display: flex; align-items: center; justify-content: center;
    background: rgba(0, 0, 0, 0.2);
}
.page-hero-overlay .container { text-align: center; }
.page-hero-title { font-size: 26px; color: #fff; font-weight: 400; margin-bottom: 8px; }
.page-hero-line { margin: 8px 0; }
.page-hero-line img { display: inline-block; height: 4px; width: auto; margin: 0 auto; }
.page-hero-desc { font-size: 16px; color: #f2f2f2; }
.page-breadcrumb { background: #fff; }
.page-breadcrumb .breadcrumb-list {
    list-style: none; display: flex; flex-wrap: wrap; align-items: center;
    padding: 10px 0; margin: 0; font-size: 14px; color: #333;
}
.page-breadcrumb .breadcrumb-item { display: flex; align-items: center; }
.page-breadcrumb .breadcrumb-item:not(:last-child)::after { content: '>'; margin: 0 8px; color: #999; }
.page-breadcrumb .breadcrumb-link { color: #333; }
.page-breadcrumb .breadcrumb-link:hover { color: var(--primary); }
.page-breadcrumb .breadcrumb-current { color: #333; }

/* Contact Page */
.contact-page { padding: 40px 0 60px; background: #fff; }
.contact-info-row {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 30px; padding: 40px 0; border-bottom: 1px solid #eee;
}
.contact-info-item { text-align: center; }
.contact-icon { margin-bottom: 16px; }
.contact-icon img { width: 48px; height: 48px; margin: 0 auto; opacity: 0.7; }
.contact-info-item p { font-size: 14px; color: #333; line-height: 1.8; }
.contact-map { margin-top: 0; background: #f5f5f5; }
.contact-map iframe { display: block; width: 100%; border: none; }
.contact-extra { margin-top: 30px; line-height: 1.8; color: #666; }

/* News List Page */
.news-list-page { padding: 30px 0 60px; background: #fff; }
.news-layout {
    display: grid;
    grid-template-columns: minmax(0, var(--page-sidebar-ratio)) minmax(0, 1fr);
    column-gap: var(--page-layout-gap);
    align-items: start;
}
.news-sidebar { width: 100%; min-width: 0; }
.news-sidebar .sidebar-head {
    display: flex; align-items: center; justify-content: space-between;
    height: 50px; line-height: 50px; padding: 0 15px;
    background: #bc1e21; color: #fff;
}
.news-sidebar .sidebar-head-text { font-size: 14px; }
.news-sidebar .sidebar-head-icon { font-size: 12px; opacity: 0.8; }
.news-sidebar-nav { border: 1px solid #eee; border-top: none; }
.news-sidebar-link {
    display: block; padding: 12px 15px; font-size: 14px; color: #333;
    border-bottom: 1px solid #f0f0f0; position: relative;
}
.news-sidebar-link:hover, .news-sidebar-link.active { color: var(--primary); background: #fafafa; }
.news-sidebar-link.active::after { content: '›'; position: absolute; right: 15px; color: #999; }
.news-main { min-width: 0; }
.news-container {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    padding: 0;
    margin: 0;
}
.news-card { width: auto; margin: 0; min-width: 0; }
.news-card-link { display: block; color: #333; transition: transform 0.3s; }
.news-card-link:hover { transform: translateY(-4px); color: var(--primary); }
.news-card .news-img {
    position: relative; width: 100%; padding-bottom: 62%;
    background: #f7f7f7; overflow: hidden;
}
.news-card .news-img img {
    position: absolute; inset: 0; width: 100%; height: 100%;
    object-fit: cover; transition: transform 0.4s;
}
.news-card-link:hover .news-img img { transform: scale(1.05); }
.news-card .news-tit { padding: 14px 4px 0; }
.news-card .news-title {
    font-size: 16px; color: #333; line-height: 24px;
    margin-bottom: 8px;
    display: -webkit-box; -webkit-line-clamp: +2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-card-link:hover .news-title { color: var(--primary); }
.news-card time { font-size: 14px; color: #666; }
.news-empty { text-align: center; color: #999; padding: 60px 20px; }
.pagination-wrap { margin-top: 20px; text-align: center; }
.pagination-wrap a, .pagination-wrap span {
    display: inline-block; padding: 6px 12px; margin: 0 3px;
    border: 1px solid #eee; color: #666; font-size: 14px;
}
.pagination-wrap .current { background: var(--primary); color: #fff; border-color: var(--primary); }

/* News Detail Page */
.news-detail-page { padding: 40px 0 60px; background: #fff; }
.news-article { max-width: 900px; margin: 0 auto; }
.news-article-title { font-size: 28px; color: #333; line-height: 1.4; margin-bottom: 12px; }
.news-article-meta { font-size: 14px; color: #999; margin-bottom: 24px; padding-bottom: 20px; border-bottom: 1px solid #eee; }
.news-article-cover { margin-bottom: 30px; }
.news-article-cover img { width: 100%; height: auto; }
.news-article-body { line-height: 1.9; color: #333; font-size: 15px; }
.news-article-body img { max-width: 100%; height: auto; }
.news-article-back { margin-top: 40px; padding-top: 20px; border-top: 1px solid #eee; }
.btn-back-list { font-size: 14px; color: #666; }
.btn-back-list:hover { color: var(--primary); }

/* Generic Content Page */
.page-content-section { padding: 40px 0 60px; background: #fff; }

/* Product Application Page */
.application-page { padding: 30px 0 60px; background: #fff; }
.application-layout {
    display: grid;
    grid-template-columns: minmax(0, var(--page-sidebar-ratio)) minmax(0, 1fr);
    column-gap: var(--page-layout-gap);
    align-items: start;
}
.application-sidebar { width: 100%; min-width: 0; }
.application-sidebar .sidebar-head {
    display: flex; align-items: center; justify-content: space-between;
    height: 50px; line-height: 50px; padding: 0 15px;
    background: #bc1e21; color: #fff;
}
.application-sidebar .sidebar-head-text { font-size: 14px; }
.application-sidebar .sidebar-head-icon { font-size: 12px; opacity: 0.8; }
.application-sidebar-nav { border: 1px solid #eee; border-top: none; }
.application-sidebar-link {
    display: block; padding: 12px 15px; font-size: 14px; color: #333;
    border-bottom: 1px solid #f0f0f0; position: relative;
}
.application-sidebar-link:last-child { border-bottom: none; }
.application-sidebar-link:hover, .application-sidebar-link.active {
    color: var(--primary); background: #fafafa;
}
.application-sidebar-link.active::after { content: '›'; position: absolute; right: 15px; color: #999; }
.application-main { min-width: 0; }
.application-container {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    padding: 0;
    margin: 0;
}
.application-card { width: auto; margin: 0; min-width: 0; }
.application-card-link { display: block; color: #333; transition: transform 0.3s; }
.application-card-link:hover { transform: translateY(-4px); color: var(--primary); }
.application-img {
    position: relative; width: 100%; padding-bottom: 62%;
    background: #f7f7f7; overflow: hidden;
}
.application-img img {
    position: absolute; inset: 0; width: 100%; height: 100%;
    object-fit: cover; transition: transform 0.4s;
}
.application-card-link:hover .application-img img { transform: scale(1.05); }
.application-tit { padding: 14px 4px 0; }
.application-title {
    font-size: 16px; color: #333; line-height: 24px; margin-bottom: 8px;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.application-card-link:hover .application-title { color: var(--primary); }
.application-tit time { font-size: 14px; color: #666; display: block; }
.application-desc {
    font-size: 13px; color: #999; line-height: 1.6; margin-top: 8px;
    white-space: pre-line;
}
.application-empty { text-align: center; color: #999; padding: 60px 20px; }

/* Responsive */
@media (max-width: 1199px) {
    html[lang="en"] .nav-link {
        padding-left: 8px;
        padding-right: 8px;
        font-size: 12px;
    }
    .header-search { max-width: 320px; }
    .slide-title { font-size: 32px; }
    .advantages-grid { grid-template-columns: repeat(2, 1fr); }
    .advantage-card,
    .advantage-flip,
    .advantage-body { min-height: 320px; }
    .company-stats-grid { gap: 20px; }
    .company-stat-circle { width: 100px; height: 100px; }
    .company-stat-value { font-size: 28px; }
    .home-news-item { width: calc(33.333% - 18px); }
}
@media (max-width: 991px) {
    .header-logo { max-width: 220px; }
    .category-grid { grid-template-columns: repeat(2, 1fr); }
    .product-grid { grid-template-columns: repeat(2, 1fr); }
    .pro-item { width: calc(50% - 18px); }
    .contact-info-row { grid-template-columns: 1fr; gap: 20px; }
    .news-container { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
    .application-container { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
    html[lang="en"] .sidebar-group-link,
    html[lang="en"] .application-sidebar-link,
    html[lang="en"] .news-sidebar-link {
        font-size: 13px;
    }
}
@media (max-width: 767px) {
    body.miman-body { padding-top: 50px; padding-bottom: 50px; }
    .site-header .header-top,
    .site-header .site-nav { display: none; }
    .mobile-header {
        display: flex;
        align-items: center;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        height: 50px;
        background: #000;
        color: #fff;
        z-index: 1100;
        padding: 0 12px 0 0;
    }
    .mobile-menu-btn {
        width: 50px;
        height: 50px;
        border: none;
        background: transparent;
        cursor: pointer;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 7px;
        padding: 0;
        flex-shrink: 0;
    }
    .mobile-menu-btn .rect {
        display: block;
        width: 22px;
        height: 2px;
        background: #fff;
        transition: transform 0.3s, opacity 0.3s;
    }
    .mobile-menu-btn.active .rect.top {
        transform: translateY(4.5px) rotate(45deg);
    }
    .mobile-menu-btn.active .rect.bottom {
        transform: translateY(-4.5px) rotate(-45deg);
    }
    .mobile-header-title {
        flex: 1;
        text-align: center;
        font-size: 16px;
        font-weight: 700;
        line-height: 50px;
        margin: 0 8px 0 0;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    .mobile-header-title a { color: #fff; }
    .mobile-lang-btn {
        width: 44px;
        height: 50px;
        border: none;
        background: transparent;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
    }
    .mobile-lang-btn .lang-globe {
        font-size: 20px;
        color: #fff;
        line-height: 1;
    }
    .mobile-lang-mask {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.35);
        z-index: 1101;
    }
    .mobile-lang-mask.active { display: block; }
    .mobile-lang-dropdown {
        display: none;
        position: fixed;
        top: 50px;
        right: 10px;
        width: 150px;
        background: #fff;
        border-radius: 4px;
        box-shadow: 0 4px 16px rgba(0,0,0,0.15);
        z-index: 1102;
        padding: 15px 0;
    }
    .mobile-lang-dropdown.active { display: block; }
    .mobile-lang-arrow {
        position: absolute;
        top: -8px;
        right: 18px;
        width: 0;
        height: 0;
        border-left: 8px solid transparent;
        border-right: 8px solid transparent;
        border-bottom: 8px solid #fff;
    }
    .mobile-lang-dropdown ul { list-style: none; }
    .mobile-lang-dropdown a {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 10px 18px;
        font-size: 14px;
        color: #333;
    }
    .mobile-lang-dropdown a.active,
    .mobile-lang-dropdown a:hover {
        background: #f6f6f6;
        color: var(--primary);
    }
    .mobile-lang-dropdown .lang-code {
        font-size: 12px;
        color: #999;
        min-width: 20px;
    }
    .mobile-nav-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.45);
        z-index: 1098;
    }
    .mobile-nav-overlay.active { display: block; }
    .mobile-nav-panel {
        display: block;
        position: fixed;
        top: 0;
        left: -272px;
        width: 272px;
        height: 100%;
        background: #3c3c3c;
        z-index: 1099;
        transition: left 0.3s ease;
        overflow-y: auto;
        padding-top: 50px;
    }
    .mobile-nav-panel.active { left: 0; }
    .mobile-nav-list ul { list-style: none; }
    .mobile-nav-item {
        position: relative;
        border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .mobile-nav-link {
        display: block;
        padding: 14px 48px 14px 40px;
        color: #fff;
        font-size: 15px;
        line-height: 1.4;
    }
    .mobile-sub-toggle {
        position: absolute;
        top: 0;
        right: 0;
        width: 48px;
        height: 48px;
        border: none;
        background: transparent;
        color: #fff;
        font-size: 18px;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .mobile-nav-item.open .mobile-sub-toggle span { transform: rotate(45deg); }
    .mobile-sub-nav {
        display: none;
        background: rgba(0,0,0,0.2);
    }
    .mobile-nav-item.open .mobile-sub-nav { display: block; }
    .mobile-nav-item.active > .mobile-nav-link,
    .mobile-nav-link.active { color: var(--primary); }
    .mobile-sub-nav a {
        display: block;
        padding: 12px 20px 12px 52px;
        color: rgba(255,255,255,0.85);
        font-size: 14px;
        border-top: 1px solid rgba(255,255,255,0.06);
    }
    .mobile-sub-nav a.active {
        color: #fff;
        background: rgba(255,255,255,0.1);
    }

    /* Page sidebars: stack + collapsible (match reference col-xs-12) */
    .product-layout,
    .application-layout,
    .news-layout {
        grid-template-columns: 1fr;
        row-gap: 20px;
    }
    .product-sidebar .sidebar-head,
    .application-sidebar .sidebar-head,
    .news-sidebar .sidebar-head {
        cursor: pointer;
        user-select: none;
    }
    .product-sidebar .sidebar-head-icon,
    .application-sidebar .sidebar-head-icon,
    .news-sidebar .sidebar-head-icon {
        display: inline-block;
        font-size: 16px;
        line-height: 1;
        transition: transform 0.3s;
    }
    .product-sidebar.is-expanded .sidebar-head-icon,
    .application-sidebar.is-expanded .sidebar-head-icon,
    .news-sidebar.is-expanded .sidebar-head-icon {
        transform: rotate(90deg);
    }
    .product-sidebar .sidebar-nav,
    .application-sidebar .application-sidebar-nav,
    .news-sidebar .news-sidebar-nav {
        display: none;
        border: 1px solid #eee;
        border-top: none;
    }
    .product-sidebar.is-expanded .sidebar-nav,
    .application-sidebar.is-expanded .application-sidebar-nav,
    .news-sidebar.is-expanded .news-sidebar-nav {
        display: block;
    }
    .product-sidebar .sidebar-group.is-current:not(.open) .sidebar-sub {
        display: none;
    }
    .product-sidebar .sidebar-group.is-current:not(.open) .sidebar-toggle {
        transform: none;
        color: #999;
    }

    .hero-swiper {
        height: clamp(220px, 56vw, 360px);
    }
    .hero-prev, .hero-next {
        width: 40px;
        height: 40px;
    }
    .swiper-button-prev::before,
    .swiper-button-next::before {
        font-size: 22px;
    }
    .slide-content { padding: 0 20px; }
    .slide-title { font-size: 24px; }
    .category-grid { grid-template-columns: 1fr; }
    .product-grid { grid-template-columns: 1fr; }
    .pro-item { width: 100%; margin: 0 0 18px; }
    .product-hero-banner, .page-hero-banner { height: 200px; }
    .product-hero-title, .page-hero-title { font-size: 22px; }
    .news-container { grid-template-columns: 1fr; gap: 24px; }
    .application-container { grid-template-columns: 1fr; gap: 24px; }
    .advantages-section { padding: 50px 0 60px; }
    .advantages-watermark { font-size: 28px; top: 30px; }
    .advantages-title { font-size: 28px; }
    .advantages-subtitle { font-size: 16px; }
    .advantages-grid { grid-template-columns: 1fr; gap: 16px; }
    .advantage-card,
    .advantage-flip,
    .advantage-body { min-height: 300px; }
    .advantage-body { padding: 28px 20px 24px; }
    .company-tech-block { display: block; }
    .company-tech-header { padding: 50px 0 28px; }
    .company-tech-title { font-size: 22px; }
    .company-about { padding: 50px 0 60px; }
    .company-about-watermark { font-size: 28px; top: 30px; }
    .company-stats-grid { grid-template-columns: 1fr; gap: 28px; }
    .company-stat-circle { width: 96px; height: 96px; }
    .company-stat-value { font-size: 26px; }
    .home-news-title { font-size: 28px; }
    .home-news-container { margin: 0 -6px; }
    .home-news-item {
        width: calc(50% - 12px);
        margin: 0 6px 18px;
    }
    .home-news-card-title { font-size: 14px; line-height: 20px; }
    .home-news-tit time { font-size: 12px; }

    /* Footer mobile */
    .site-footer { padding-right: 0; }
    .footer-main { padding: 24px 0 16px; }
    .footer-inner {
        display: block;
        text-align: center;
    }
    .footer-logo,
    .footer-center,
    .footer-qr-col { display: none; }
    .footer-mobile-follow { display: block; }
    .footer-follow-title { font-size: 14px; margin-bottom: 12px; }
    .footer-qr-list { gap: 18px; }
    .footer-mobile-follow .qr-item img { width: 100px; height: 100px; }
    .footer-copyright {
        padding: 14px 16px 18px;
        font-size: 12px;
        line-height: 1.7;
    }

    /* Mobile bottom bar */
    .mobile-foot-nav {
        display: block;
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        height: 50px;
        z-index: 900;
        background: #000;
        border-top: 1px solid rgba(255,255,255,0.08);
    }
    .mobile-foot-list {
        list-style: none;
        display: flex;
        height: 100%;
        margin: 0;
        padding: 0;
    }
    .mobile-foot-list li { flex: 1; min-width: 0; }
    .mobile-foot-list a {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 100%;
        height: 100%;
        color: #666;
        transition: color 0.3s;
    }
    .mobile-foot-list a:hover,
    .mobile-foot-list a:active { color: #fff; }

    /* Float sidebar above bottom bar */
    .float-sidebar {
        right: 8px;
        bottom: 60px;
    }
    .sidebar-btn { width: 40px; height: 40px; }
    .sidebar-btn svg { width: 18px; height: 18px; }
    .sidebar-panel { width: 190px; padding: 12px; }
    .sidebar-panel-qr img { width: 120px; height: 120px; }
}