:root {
  --blue: #0758aa;
  --blue-deep: #0e2842;
  --cyan: #2dc4b5;
  --ink: #151b21;
  --muted: #7f8993;
  --line: #e6eaee;
  --paper: #ffffff;
  --soft: #f5f7f9;
  --container: 1500px;
}

* { box-sizing: border-box; }
html { overflow-x: hidden; scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--paper);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, textarea { font: inherit; }
button { cursor: pointer; }
.container { width: min(calc(100% - 48px), var(--container)); margin-inline: auto; }
.section { padding: 90px 0; }
.section-soft { background: var(--soft); }
.section-blue { color: #fff; background: #0757a9; }
.section-dark { color: #fff; background: #101a25; }
.eyebrow { color: var(--cyan); font-size: 13px; font-weight: 700; text-transform: uppercase; }
.section-title { margin: 0; font-size: 36px; line-height: 1.25; font-weight: 600; }
.section-subtitle { margin: 8px 0 0; color: #9da6af; font-size: 14px; }
.title-center { margin-bottom: 48px; text-align: center; }
.title-center .section-title::after {
  display: block; width: 28px; height: 3px; margin: 18px auto 0; background: var(--cyan); content: "";
}
.btn {
  display: inline-flex; min-height: 42px; align-items: center; justify-content: center; gap: 10px;
  padding: 0 25px; border: 0; border-radius: 3px; color: #fff; background: var(--blue); transition: .25s ease;
}
.btn:hover { background: #06498d; transform: translateY(-2px); }
.btn-cyan { background: var(--cyan); }
.btn-cyan:hover { background: #20a99d; }

/* Shared header */
.site-header { position: relative; z-index: 50; height: 90px; background: rgba(255,255,255,.98); }
.header-inner { height: 100%; display: flex; align-items: center; gap: 50px; }
.site-logo { width: 188px; flex: 0 0 auto; }
.site-nav { display: flex; align-items: stretch; justify-content: center; gap: 44px; margin-left: auto; height: 100%; }
.site-nav a { position: relative; display: flex; align-items: center; color: #252a2e; white-space: nowrap; }
.site-nav a:not(:last-child)::after { position: absolute; right: -24px; color: #d6dade; content: "/"; }
.site-nav a::before { position: absolute; bottom: 22px; left: 50%; width: 0; height: 2px; background: var(--cyan); content: ""; transition: .25s; }
.site-nav a:hover::before, .site-nav a.active::before { left: 0; width: 100%; }
.header-actions { display: flex; align-items: center; gap: 18px; margin-left: 18px; font-size: 13px; }
.contact-pill { padding: 5px 22px; border-radius: 99px; color: #fff; background: var(--cyan); }
.lang-toggle { border: 0; padding: 4px; color: #59616a; background: transparent; }
.menu-toggle { display: none; width: 44px; height: 44px; border: 0; background: transparent; }
.menu-toggle span { display: block; width: 24px; height: 2px; margin: 5px auto; background: #17212a; transition: .25s; }

/* Shared inner banner */
.page-banner { height: 490px; background-position: center; background-size: cover; }
.banner-product { background-image: url("/assets/addons/ldcms/yuandongtoru/images/banner/产品品类.png"); }
.banner-case { background-image: url("/assets/addons/ldcms/yuandongtoru/images/banner/案例.png"); }
.banner-about { background-image: url("/assets/addons/ldcms/yuandongtoru/images/banner/关于我们.png"); }
.banner-news { background-image: url("/assets/addons/ldcms/yuandongtoru/images/banner/新闻.png"); }
.banner-contact { background-image: url("/assets/addons/ldcms/yuandongtoru/images/banner/联系我们.png"); }
.banner-product-en { background-image: url("/assets/addons/ldcms/yuandongtoru/images/banner/产品品类 英.png"); }
.banner-case-en { background-image: url("/assets/addons/ldcms/yuandongtoru/images/banner/案例  英.png"); }
.banner-about-en { background-image: url("/assets/addons/ldcms/yuandongtoru/images/banner/关于我们 英.png"); }
.banner-news-en { background-image: url("/assets/addons/ldcms/yuandongtoru/images/banner/新闻  英.png"); }
.banner-contact-en { background-image: url("/assets/addons/ldcms/yuandongtoru/images/banner/联系我们  英.png"); }
.banner-product-en,
.banner-case-en,
.banner-about-en,
.banner-news-en,
.banner-contact-en { background-position: left center; }

/* Homepage */
.home-hero { position: relative; height: min(830px, calc(100vh - 90px)); min-height: 570px; overflow: hidden; background: #0e5aad; }
.home-hero-slide { position: absolute; inset: 0; background-position: left center; background-size: cover; opacity: 0; transition: opacity .7s ease; }
.home-hero-slide.active { opacity: 1; }
.hero-dots { position: absolute; z-index: 2; bottom: 26px; left: 50%; display: flex; gap: 8px; transform: translateX(-50%); }
.hero-dot { width: 34px; height: 3px; border: 0; padding: 0; background: rgba(255,255,255,.45); }
.hero-dot.active { background: #fff; }
.stats-bar { padding: 48px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { text-align: center; border-right: 1px solid #dce1e6; }
.stat:last-child { border: 0; }
.stat-icon { height: 35px; margin: 0 auto 10px; object-fit: contain; }
.stat strong { display: block; color: var(--blue); font-size: 40px; line-height: 1.1; font-variant-numeric: tabular-nums; }
.stat span { color: #66717b; font-size: 13px; }
.stat .stat-number { color: inherit; font-size: inherit; line-height: inherit; }
.intro-grid { display: grid; grid-template-columns: 1.12fr 1fr; align-items: center; gap: 75px; }
.intro-image { width: 100%; aspect-ratio: 826/572; object-fit: cover; }
.intro-copy h2 { margin: 10px 0 22px; font-size: 36px; line-height: 1.25; }
.intro-copy p { color: #69737c; font-size: 15px; }
.intro-copy .btn { margin-top: 15px; }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.service-card { position: relative; min-height: 475px; overflow: hidden; background: #183552; }
.service-card img { width: 100%; height: 100%; object-fit: cover; transition: .45s; }
.service-card::after { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(3,23,43,.05) 30%, rgba(3,23,43,.88)); content: ""; }
.service-card:hover img { transform: scale(1.04); }
.service-copy { position: absolute; z-index: 2; right: 28px; bottom: 26px; left: 28px; color: #fff; }
.service-copy b { display: block; margin-bottom: 6px; font-size: 24px; }
.service-copy span { font-size: 13px; opacity: .75; }
.category-tabs { display: flex; flex-wrap: wrap; justify-content: center; gap: 22px; margin-bottom: 42px; }
.category-tab { width: 92px; border: 0; color: #69737d; background: transparent; }
.category-tab img { width: 70px; height: 70px; margin: 0 auto 8px; }
.category-tab .on { display: none; }
.category-tab.active { color: var(--blue); }
.category-tab.active .off { display: none; }
.category-tab.active .on { display: block; }
.category-stage { position: relative; }
.category-stage > img { width: 100%; aspect-ratio: 1405/598; object-fit: cover; }
.category-arrow { position: absolute; top: 50%; width: 54px; height: 54px; border: 0; border-radius: 50%; background: rgba(255,255,255,.94); box-shadow: 0 8px 26px rgba(0,0,0,.18); transform: translateY(-50%); }
.category-arrow.prev { left: -27px; }
.category-arrow.next { right: -27px; }
.showcase-section { position: relative; min-height: 730px; display: flex; align-items: center; background: #0758aa url("/assets/addons/ldcms/yuandongtoru/images/首页切图/组 13.png") center/cover no-repeat; }
.showcase-section .showcase-stage { position: relative; width: min(1120px, 92%); margin: auto; }
.showcase-section .showcase-card { position: absolute; inset: 0; display: grid; grid-template-columns: 1.2fr 1fr; width: 100%; margin: 0; background: #fff; box-shadow: 0 25px 60px rgba(0,33,78,.25); opacity: 0; pointer-events: none; transition: opacity .55s ease; }
.showcase-section .showcase-card.is-active { opacity: 1; pointer-events: auto; position: relative; }
.showcase-section .showcase-card > img { width: 100%; height: 100%; min-height: 420px; object-fit: cover; }
.showcase-section .showcase-copy { padding: 60px 50px; }
.showcase-section .showcase-copy h3 { margin: 12px 0 22px; font-size: 27px; line-height: 1.4; }
.showcase-section .showcase-copy p { color: #68747f; }
.showcase-section .showcase-controls { width: min(1120px, 92%); margin: 28px auto 0; display: flex; align-items: center; gap: 10px; }
.showcase-section .showcase-arrow { width: 42px; height: 42px; border: 1px solid #dfe6ea; border-radius: 50%; color: #416079; background: #fff; font-size: 24px; line-height: 1; }
.showcase-section .showcase-arrow.is-next { color: #fff; border-color: var(--blue); background: var(--blue); }
.showcase-section .case-count { margin-left: auto; color: var(--cyan); font-size: 38px; font-weight: 700; font-variant-numeric: tabular-nums; }
.showcase-section .case-count small { color: #bdc5cb; font-size: 16px; }
.showcase-card { display: grid; grid-template-columns: 1.2fr 1fr; width: min(1120px, 92%); margin: auto; background: #fff; box-shadow: 0 25px 60px rgba(0,33,78,.25); }
.showcase-card img { width: 100%; height: 100%; min-height: 420px; object-fit: cover; }
.showcase-copy { padding: 60px 50px; }
.showcase-copy h3 { margin: 12px 0 22px; font-size: 27px; line-height: 1.4; }
.showcase-copy p { color: #68747f; }
.case-count { margin-top: 38px; color: var(--cyan); font-size: 38px; font-weight: 700; }
.case-count small { color: #bdc5cb; font-size: 16px; }
.full-image-section { min-height: 640px; background-position: center; background-size: cover; }
.timeline-image { min-height: 650px; background-image: url("/assets/addons/ldcms/yuandongtoru/images/首页切图/发展历程中.png"); }
.timeline-image-en { background-image: url("/assets/addons/ldcms/yuandongtoru/images/首页切图/英文/发展历程英文.png"); }
.certificate-section { position: relative; min-height: 620px; padding: 70px 0; color: #fff; background: url("/assets/addons/ldcms/yuandongtoru/cert/首页企业资质.png") center/cover no-repeat; }
.certificate-row { display: grid; grid-template-columns: repeat(5, 1fr); align-items: end; gap: 30px; margin-top: 40px; }
.certificate-row img { width: 100%; height: 285px; object-fit: contain; filter: drop-shadow(0 12px 12px rgba(0,0,0,.25)); }
.partner-row { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.partner { display: flex; height: 76px; align-items: center; justify-content: center; color: #6f7880; border: 1px solid #edf0f2; font-size: 20px; font-weight: 700; }
/* Partner cards (image + text, backend-driven) */
.partner-section { background: var(--soft); }
.partner-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.partner-card { padding: 26px 16px 22px; border: 1px solid #e6eaee; background: #fff; text-align: center; transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.partner-card:hover { transform: translateY(-4px); border-color: #d3dde6; box-shadow: 0 10px 26px rgba(7,88,170,.10); }
.partner-logo { display: flex; height: 64px; align-items: center; justify-content: center; margin-bottom: 14px; }
.partner-logo img { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; }
.partner-name { margin: 0; color: #151b21; font-size: 15px; font-weight: 700; line-height: 1.4; }
.partner-desc { margin: 8px 0 0; color: #7f8993; font-size: 12.5px; line-height: 1.7; }
.map-section { min-height: 640px; padding: 70px 0; background: #102841 url("/assets/addons/ldcms/yuandongtoru/images/首页切图/眼球服务.png") center/cover no-repeat; }
.home-news-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 55px; }
.lead-news img { width: 100%; height: 300px; object-fit: cover; }
.lead-news h3 { font-size: 23px; line-height: 1.5; }
.news-mini { display: grid; grid-template-columns: 1fr 145px; gap: 24px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.news-mini img { width: 145px; height: 95px; object-fit: cover; }
.news-mini h4 { margin: 0 0 6px; line-height: 1.45; }
.news-meta { color: #9aa2a9; font-size: 13px; }

/* Product */
.filter-panel { margin: 55px auto; border-radius: 8px; background: #f7f7f7; overflow: hidden; }
.filter-row { display: flex; flex-wrap: wrap; gap: 42px; padding: 22px 30px; border-bottom: 1px solid #ececec; }
.filter-row:last-child { border-bottom: 0; }
.filter-btn { position: relative; border: 0; padding: 4px 0; color: #333; background: transparent; }
.filter-btn.active { color: var(--cyan); }
.filter-btn.active::after { position: absolute; right: 0; bottom: -23px; left: 0; height: 3px; background: var(--cyan); content: ""; }
.filter-row:last-child .filter-btn.active::after { display: none; }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 55px 50px; padding-bottom: 110px; }
.product-card { background: #f3f3f3; transition: .25s; }
.product-card:hover { transform: translateY(-5px); box-shadow: 0 18px 40px rgba(16,35,54,.12); }
.product-card img { width: 100%; aspect-ratio: 493/282; object-fit: cover; }
.product-info { padding: 24px 30px 30px; }
.product-info h3 { margin: 0 0 10px; font-size: 26px; font-weight: 500; }
.product-info p { margin: 0; color: #8a8f94; font-size: 13px; }
.empty-state { display: none; grid-column: 1/-1; padding: 80px 0; color: #8a949e; text-align: center; }

/* Cases */
.case-heading { padding: 55px 0 38px; text-align: center; }
.case-heading strong { display: block; color: var(--blue); font-family: Arial, sans-serif; font-size: 70px; line-height: 1; }
.case-heading span { font-size: 24px; }
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; padding-bottom: 110px; }
.case-card { padding: 15px 15px 28px; box-shadow: 0 5px 24px rgba(21,44,66,.09); background: #fff; }
.case-card img { width: 100%; aspect-ratio: 462/264; object-fit: cover; }
.case-card h3 { margin: 22px 6px 16px; font-size: 19px; line-height: 1.45; }
.case-card p { margin: 0 6px 32px; color: #89929a; font-size: 14px; }
.views { margin: 0 6px; color: #a1a8ae; font-size: 13px; }

/* News */
.news-list { padding: 80px 0 110px; }
.news-row { display: grid; grid-template-columns: 400px 1fr; gap: 45px; padding: 0 0 38px; margin-bottom: 38px; border-bottom: 1px solid var(--line); }
.news-row img { width: 100%; height: 260px; object-fit: cover; }
.news-row h2 { margin: 18px 0 12px; color: #0d2b55; font-size: 20px; }
.news-row p { color: #879099; }
.news-row .btn { margin-top: 22px; }
.pagination { display: flex; justify-content: center; gap: 10px; }
.page-btn { min-width: 38px; height: 38px; border: 0; border-radius: 3px; color: #7b858e; background: #f0f1f2; }
.page-btn.active { color: #fff; background: var(--blue); }

/* About */
.about-intro { position: relative; overflow: hidden; }
.about-intro::before { position: absolute; top: 35px; left: 50%; color: #f6f7f8; font: 700 150px/1 Arial; content: "YSUN"; transform: translateX(-50%); }
.about-copy { position: relative; }
.about-copy p { color: #606c76; }
.about-media { display: grid; grid-template-columns: 1fr 1fr; gap: 45px; width: 850px; max-width: 100%; margin: 40px auto; }
.about-media img { width: 100%; height: 280px; object-fit: cover; }
.culture-band { display: grid; grid-template-columns: 1.3fr 1fr; background: #303b47; }
.culture-band > img { width: 100%; height: 470px; object-fit: cover; }
.culture-copy { padding: 65px 70px; color: #fff; }
.culture-copy h2 { font-size: 28px; }
.culture-copy dt { color: var(--cyan); font-weight: 700; }
.culture-copy dd { margin: 0 0 13px; color: #d3d9de; }
.simple-history { padding-bottom: 40px; }
.history-track { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 60px; border-top: 2px solid #dfe4e8; }
.history-node { position: relative; padding: 26px 30px 0 0; }
.history-node::before { position: absolute; top: -7px; left: 0; width: 12px; height: 12px; border-radius: 50%; background: var(--cyan); content: ""; }
.history-node strong { display: block; color: #1c334d; font-size: 24px; }
.history-node p { color: #929aa1; font-size: 13px; }
.honors { min-height: 700px; background: url("/assets/addons/ldcms/yuandongtoru/cert/关务我们页资质背景底图.png") center/cover no-repeat; }
.honor-strip { display: grid; grid-template-columns: repeat(5, 1fr); gap: 35px; margin-top: 45px; }
.honor-strip img { width: 100%; height: 330px; object-fit: contain; }
.franchise { min-height: 720px; color: #fff; background: #24272b url("/assets/addons/ldcms/yuandongtoru/images/关于我们/组 20.png") center/cover no-repeat; }
.franchise .section-subtitle { color: #d1d4d7; }
.trade-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.trade-grid img { width: 100%; height: 270px; object-fit: cover; }

/* Contact */
.contact-methods { padding: 80px 0; background: #f3f3f3; }
.contact-methods h2, .message-title { margin: 0 0 65px; font-size: 38px; }
.method-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.method-card { min-height: 220px; padding-left: 70px; border-left: 3px solid #2872b8; }
.method-card img { width: 84px; height: 84px; margin-bottom: 22px; object-fit: contain; }
.method-card strong { display: block; margin-bottom: 10px; }
.message-section { padding: 90px 0 115px; }
.message-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 95px; }
.message-visual img { width: 100%; margin-top: 40px; }
.contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 25px 55px; align-content: start; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field.full { grid-column: 1/-1; }
.field input, .field textarea { width: 100%; border: 0; border-bottom: 1px solid #aeb5bb; padding: 10px 2px; outline: 0; background: transparent; }
.field input:focus, .field textarea:focus { border-color: var(--blue); }
.field textarea { min-height: 130px; resize: vertical; }
.form-status { grid-column: 1/-1; min-height: 24px; color: #16877c; }

/* Footer */
.site-footer { padding: 65px 0 18px; color: #b4bcc4; background: #171c21; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr 1.35fr .8fr; gap: 60px; align-items: start; }
.footer-logo { width: 180px; margin-bottom: 16px; }
.hotline { font-size: 15px; }
.hotline strong { display: block; color: #fff; font-size: 28px; }
.footer-title { margin: 0 0 20px; color: #fff; font-size: 19px; }
.footer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 28px; }
.footer-nav a:hover { color: var(--cyan); }
.footer-contact p { margin: 7px 0; }
.qr-row { display: flex; gap: 18px; }
.qr-row img { width: 105px; height: 105px; object-fit: cover; background: #fff; }
.copyright { margin-top: 44px; padding-top: 18px; border-top: 1px solid #394047; text-align: center; font-size: 13px; }
.theme-lang { display: grid; width: 172px; height: 36px; grid-template-columns: repeat(4, 1fr); align-items: center; gap: 2px; padding: 3px; border: 1px solid #dfe5e8; border-radius: 99px; background: #f7f9fa; }
.theme-lang a { display: inline-flex; height: 28px; align-items: center; justify-content: center; border-radius: 99px; color: #66737e; font-size: 12px; line-height: 1; white-space: nowrap; }
.theme-lang a:hover { color: var(--cyan); }
.theme-lang a.active { color: #fff; background: var(--cyan); }

@media (max-width: 1100px) {
  .site-header { height: 76px; }
  .site-logo { width: 160px; }
  .site-nav { gap: 25px; font-size: 14px; }
  .site-nav a:not(:last-child)::after { right: -15px; }
  .contact-pill { display: none; }
  .home-hero { height: 55vw; min-height: 480px; }
  .page-banner { height: 310px; }
  .intro-grid, .showcase-card, .message-grid { gap: 45px; }
  .partner-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .product-grid { gap: 30px; }
}

@media (max-width: 760px) {
  body { font-size: 14px; }
  .container { width: min(calc(100% - 32px), var(--container)); }
  .section { padding: 60px 0; }
  .section-title { font-size: 28px; }
  .site-header { height: 68px; }
  .header-inner { gap: 15px; }
  .site-logo { width: 138px; }
  .menu-toggle { display: block; margin-left: auto; }
  .site-nav { position: fixed; top: 68px; right: 0; bottom: 0; left: 0; display: flex; height: auto; flex-direction: column; justify-content: flex-start; gap: 0; padding: 28px 24px; background: #fff; transform: translateX(100%); transition: .3s; }
  .menu-open .site-nav { transform: translateX(0); }
  .site-nav a { height: 58px; border-bottom: 1px solid var(--line); font-size: 17px; }
  .site-nav a::after, .site-nav a::before { display: none; }
  .header-actions { margin-left: 0; }
  .header-actions { gap: 10px; }
  .theme-lang { width: 156px; height: 34px; }
  .theme-lang a { height: 26px; font-size: 11px; }
  .header-actions .lang-toggle { display: none; }
  .home-hero { height: 66vw; min-height: 330px; }
  .home-hero-slide { background-position: left center; }
  .page-banner { height: 180px; background-size: auto 180px; }
  .stats-grid { grid-template-columns: 1fr 1fr; row-gap: 30px; }
  .stat:nth-child(2) { border: 0; }
  .stat strong { font-size: 28px; }
  .stat .stat-number { font-size: inherit; }
  .intro-grid, .showcase-card, .home-news-grid, .culture-band, .message-grid { grid-template-columns: 1fr; }
  .intro-grid { gap: 32px; }
  .intro-copy h2 { font-size: 28px; }
  .service-grid, .product-grid, .case-grid, .trade-grid { grid-template-columns: 1fr; }
  .service-card { min-height: 370px; }
  .category-tabs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px 6px; }
  .category-tab { width: auto; font-size: 12px; }
  .category-tab img { width: 58px; height: 58px; }
  .category-arrow { width: 44px; height: 44px; }
  .category-arrow.prev { left: -12px; }
  .category-arrow.next { right: -12px; }
  .showcase-section { min-height: 0; padding: 60px 0; }
  .showcase-card img { min-height: 250px; }
  .showcase-copy { padding: 32px 25px; }
  .timeline-image { min-height: 320px; background-size: auto 320px; }
  .certificate-section { min-height: 0; }
  .certificate-row { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .certificate-row img { height: 180px; }
  .certificate-row img:last-child { display: none; }
  .partner-row { grid-template-columns: repeat(2, 1fr); }
  .partner-grid { grid-template-columns: repeat(2, 1fr); }
  .partner:last-child { grid-column: 1/-1; }
  .map-section { min-height: 330px; background-size: auto 330px; }
  .news-mini { grid-template-columns: 1fr 110px; }
  .news-mini img { width: 110px; }
  .filter-panel { margin: 30px 0; }
  .filter-row { gap: 15px 25px; padding: 18px; }
  .filter-row { flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .filter-btn { flex: 0 0 auto; }
  .filter-btn.active::after { bottom: -19px; }
  .product-grid, .case-grid { padding-bottom: 70px; }
  .case-heading strong { font-size: 52px; }
  .news-list { padding: 55px 0 75px; }
  .news-row { grid-template-columns: 1fr; gap: 10px; }
  .news-row img { height: 220px; }
  .about-intro::before { font-size: 80px; }
  .about-media { grid-template-columns: 1fr; gap: 15px; }
  .about-media img { height: 240px; }
  .culture-band > img { height: 300px; }
  .culture-copy { padding: 40px 25px; }
  .history-track { grid-template-columns: 1fr; border-top: 0; border-left: 2px solid #dfe4e8; margin-left: 8px; }
  .history-node { padding: 0 0 32px 28px; }
  .history-node::before { top: 8px; left: -7px; }
  .honors, .franchise { min-height: 0; }
  .honor-strip { grid-template-columns: repeat(2, 1fr); gap: 15px; }
  .honor-strip img { height: 220px; }
  .honor-strip img:last-child { display: none; }
  .method-grid { grid-template-columns: 1fr; gap: 25px; }
  .method-card { min-height: 0; padding: 10px 0 28px 35px; }
  .contact-form { grid-template-columns: 1fr; gap: 18px; }
  .field.full, .form-status { grid-column: 1; }
  .footer-grid { grid-template-columns: 1fr; gap: 35px; }
  .footer-nav { max-width: 280px; }
  .qr-row img { width: 96px; height: 96px; }
}

/* Detail pages */
.detail-breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 11px; margin-bottom: 34px; color: #8a969f; font-size: 13px; }
.detail-breadcrumb a:hover { color: var(--cyan); }
.detail-breadcrumb strong { max-width: 380px; overflow: hidden; color: #344555; font-weight: 500; text-overflow: ellipsis; white-space: nowrap; }
.product-detail { padding-top: 72px; padding-bottom: 100px; }
.product-detail-hero { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(360px, .92fr); gap: 72px; align-items: center; }
.product-gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.product-gallery img { width: 100%; aspect-ratio: 1.25; object-fit: cover; background: #f2f5f7; }
.product-gallery img:only-child { grid-column: 1 / -1; aspect-ratio: 1.55; }
.product-detail-summary { padding: 18px 0; }
.product-detail-summary h1 { margin: 12px 0 18px; color: #142e49; font-size: clamp(30px, 4vw, 50px); font-weight: 600; line-height: 1.2; }
.product-subtitle { color: var(--blue); font-size: 18px; }
.product-lead { max-width: 520px; margin: 24px 0; color: #74808b; line-height: 1.9; }
.product-detail-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 22px; margin-top: 34px; }
.product-code { color: #abb4bc; font: 12px Arial, sans-serif; letter-spacing: 1px; }
.detail-content-panel { margin-top: 90px; padding-top: 34px; border-top: 1px solid var(--line); }
.detail-panel-heading { display: flex; align-items: baseline; gap: 18px; margin-bottom: 30px; }
.detail-panel-heading span { color: var(--cyan); font: 700 13px Arial, sans-serif; letter-spacing: 2px; }
.detail-panel-heading h2 { margin: 0; color: #17334e; font-size: 25px; font-weight: 600; }
.article-detail { padding-top: 64px; padding-bottom: 100px; background: #fff; }
.article-detail-inner { max-width: 1050px; }
.article-detail-header { max-width: 840px; margin: 0 auto 42px; text-align: center; }
.article-detail-header h1 { margin: 14px 0 18px; color: #142e49; font-size: clamp(28px, 4vw, 46px); font-weight: 600; line-height: 1.3; }
.article-meta { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 12px; color: #9aa5ad; font-size: 13px; }
.article-meta i { width: 3px; height: 3px; border-radius: 50%; background: var(--cyan); }
.article-cover { margin: 0 auto 50px; }
.article-cover img { width: 100%; max-height: 540px; object-fit: cover; }
.article-body { max-width: 850px; margin: 0 auto; color: #455767; font-size: 16px; line-height: 2; }
.article-body p { margin: 0 0 1.2em; }
.article-body h2, .article-body h3 { margin: 1.8em 0 .7em; color: #17334e; line-height: 1.35; }
.article-body img { width: auto; max-width: 100%; height: auto; margin: 28px auto; }
.article-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 9px; max-width: 850px; margin: 48px auto 0; padding-top: 22px; border-top: 1px solid var(--line); }
.article-tags a { padding: 5px 13px; color: #71808d; border: 1px solid #e4e9ed; border-radius: 2px; font-size: 12px; }
.article-tags a:hover { color: var(--blue); border-color: var(--blue); }
.detail-pager { display: grid; grid-template-columns: 1fr 1fr; gap: 35px; max-width: 850px; margin: 52px auto 0; padding-top: 24px; border-top: 1px solid var(--line); }
.detail-pager > div { min-width: 0; }
.detail-pager .pager-next { text-align: right; }
.detail-pager small { display: block; margin-bottom: 6px; color: #a4adb4; font-size: 12px; }
.detail-pager a { display: block; overflow: hidden; color: #254765; font-size: 15px; text-overflow: ellipsis; white-space: nowrap; }
.detail-pager a:hover { color: var(--cyan); }

/* Responsive language picker, category links and full-width mobile banners */
.language-picker { position: relative; width: 142px; color: #59616a; font-size: 12px; }
.language-picker summary { display: flex; height: 34px; align-items: center; gap: 8px; padding: 0 10px; border: 1px solid #dfe5e8; border-radius: 4px; background: #f7f9fa; cursor: pointer; list-style: none; }
.language-picker summary::-webkit-details-marker { display: none; }
.language-flag { display: inline-flex; align-items: center; line-height: 1; }
.language-flag img { width: 20px; height: auto; display: block; border-radius: 2px; box-shadow: 0 0 0 1px rgba(0,0,0,.08); }
.language-chevron { margin-left: auto; color: #8a959d; }
.language-menu { position: absolute; z-index: 80; top: calc(100% + 6px); right: 0; left: 0; padding: 5px; border: 1px solid #dfe5e8; border-radius: 4px; background: #fff; box-shadow: 0 10px 24px rgba(20,46,73,.14); }
.language-menu a { display: flex; align-items: center; gap: 9px; padding: 8px 9px; color: #59616a; white-space: nowrap; }
.language-menu a { width: 100%; box-sizing: border-box; }
.language-menu a:hover, .language-menu a.active { color: var(--blue); background: #eef8f7; }
.category-tab { width: 110px; text-align: center; }
.category-tab-mark { display: flex; width: 70px; height: 70px; margin: 0 auto 8px; align-items: center; justify-content: center; border: 1px solid #dce5e8; border-radius: 50%; color: var(--cyan); background: #f7fbfb; font-size: 28px; }
.category-tab-mark img { width: 100%; height: 100%; margin: 0; border-radius: inherit; object-fit: cover; }
.category-tab .category-icon-on { display: none; }
.category-tab.active .category-icon-off { display: none; }
.category-tab.active .category-icon-on { display: block; }
.category-tab:hover, .category-tab.active { color: var(--blue); }
.category-stage { overflow: hidden; background: #0e2842; }
.category-stage-image { width: 100%; aspect-ratio: 1405/598; object-fit: cover; }
.category-stage-link { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; color: #fff; background: linear-gradient(90deg, rgba(5,35,68,.1), rgba(5,35,68,.62)); text-align: center; }
.category-stage-link strong { font-size: clamp(28px, 4vw, 52px); font-weight: 600; }
.category-stage-link > span:last-child { color: rgba(255,255,255,.82); font-size: 14px; }

/* Homepage reference layout */
.service-grid { align-items: start; }
.service-card { min-height: 0; overflow: visible; background: transparent; }
.service-card img { width: 100%; height: auto; aspect-ratio: auto; object-fit: contain; }
.service-card::after, .service-copy { display: none; }
.category-stage { display: grid; grid-template-columns: 58px minmax(0, 1fr) 58px; grid-template-rows: auto; align-items: center; gap: 18px; overflow: visible; background: transparent; }
.category-stage-image { grid-column: 2; grid-row: 1; width: 100%; aspect-ratio: 1405/598; object-fit: cover; }
.category-stage-link { position: static; inset: auto; grid-column: 2; grid-row: 1; z-index: 1; opacity: 0; }
.category-arrow { position: static; grid-row: 1; width: 52px; height: 52px; transform: none; }
.category-arrow.prev { grid-column: 1; }
.category-arrow.next { grid-column: 3; }
.showcase-section { min-height: 0; padding: 76px 0 110px; }
.showcase-heading { margin: 0 auto 34px; width: min(1360px, 100%); color: #fff; }
.showcase-heading h2 { margin: 0; font-size: 32px; line-height: 1.3; }
.showcase-heading p { margin: 8px 0 14px; color: rgba(255,255,255,.82); font-size: 15px; }
.heading-mark { display: block; width: 42px; height: 4px; background: var(--cyan); }
.showcase-card { position: relative; display: block; width: min(1360px, 100%); background: transparent; box-shadow: none; }
.showcase-card > img { display: block; width: 78%; height: auto; min-height: 0; aspect-ratio: 479/276; object-fit: cover; }
.showcase-copy { position: absolute; z-index: 2; top: 18%; right: 0; width: 52%; padding: 48px 54px; background: #fff; box-shadow: 0 18px 40px rgba(0,33,78,.2); }
.showcase-copy h3 { margin: 0 0 18px; font-size: 25px; line-height: 1.45; }
.showcase-copy p { margin: 0; color: #68747f; font-size: 14px; line-height: 1.85; }
.showcase-controls { display: flex; align-items: center; gap: 10px; margin-top: 30px; }
.showcase-arrow { width: 42px; height: 42px; border: 1px solid #dfe6ea; border-radius: 50%; color: #416079; background: #fff; font-size: 24px; line-height: 1; }
.showcase-arrow.is-next { color: #fff; border-color: var(--blue); background: var(--blue); }
.showcase-controls .case-count { margin: 0 0 0 auto; font-size: 38px; }
.map-section .section-title { color: #fff; }
.map-section .section-subtitle { color: rgba(255,255,255,.75); }
.home-news-section { background: #fff; }
.home-news-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 28px; padding-bottom: 25px; border-bottom: 1px solid var(--line); }
.home-news-heading .btn { flex: 0 0 auto; min-width: 148px; border-radius: 24px; }
.home-news-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 55px; }
.lead-news { grid-column: 1 / -1; padding: 4px 0 28px; border-bottom: 1px solid var(--line); }
.lead-news a { display: grid; grid-template-columns: 1fr 340px; gap: 55px; align-items: center; }
.lead-news img { grid-column: 2; grid-row: 1; width: 100%; height: 196px; object-fit: cover; }
.lead-news-copy { grid-column: 1; grid-row: 1; position: relative; padding-right: 20px; }
.lead-news h3 { margin: 10px 0 8px; font-size: 23px; line-height: 1.45; }
.lead-news-copy p:not(.news-meta) { margin: 0; color: #89939b; font-size: 13px; line-height: 1.8; }
.news-read { display: block; margin-top: 22px; color: #263844; font-size: 28px; line-height: 1; }
.news-mini { display: block; padding: 20px 0; border-bottom: 1px solid var(--line); }
.news-mini a { display: grid; grid-template-columns: 18px minmax(0, 1fr) auto; gap: 10px; align-items: center; }
.news-mini-title { overflow: hidden; font-size: 16px; font-weight: 600; line-height: 1.45; text-overflow: ellipsis; }
.news-bullet { color: var(--blue); font-size: 20px; line-height: 1; }
.news-mini .news-meta { white-space: nowrap; }

@media (max-width: 760px) {
  .category-stage { grid-template-columns: 38px minmax(0, 1fr) 38px; gap: 8px; }
  .category-arrow { width: 40px; height: 40px; }
  .showcase-section { padding: 58px 0 70px; }
  .showcase-heading h2 { font-size: 27px; }
  .showcase-section .showcase-card { grid-template-columns: 1fr; }
  .showcase-section .showcase-card > img { width: 100%; min-height: 0; height: auto; aspect-ratio: 16/10; object-fit: cover; }
  .showcase-section .showcase-card .showcase-copy { position: relative; top: auto; right: auto; width: 100%; margin: 0; padding: 24px 20px; box-sizing: border-box; }
  .showcase-section .showcase-copy h3 { font-size: 21px; }
  .home-news-heading { align-items: start; flex-direction: column; gap: 18px; }
  .home-news-heading .btn { min-height: 38px; }
  .home-news-grid { grid-template-columns: 1fr; }
  .lead-news { grid-column: 1; }
  .lead-news a { grid-template-columns: 1fr; gap: 18px; }
  .lead-news-copy { grid-column: 1; grid-row: 1; padding-right: 0; }
  .lead-news img { grid-column: 1; grid-row: 2; height: auto; aspect-ratio: 16/9; }
  .news-mini a { grid-template-columns: 16px minmax(0, 1fr); }
  .news-mini .news-meta { grid-column: 2; }
}

@media (max-width: 760px) {
  .product-detail, .article-detail { padding-top: 42px; padding-bottom: 65px; }
  .product-detail-hero { grid-template-columns: 1fr; gap: 32px; }
  .product-detail-summary h1 { font-size: 32px; }
  .detail-content-panel { margin-top: 58px; }
  .article-detail-header { margin-bottom: 30px; }
  .article-body { font-size: 15px; }
  .detail-pager { gap: 16px; }
  .language-picker { width: 122px; }
  .language-picker summary { padding: 0 8px; }
  .home-hero { height: 56.25vw; min-height: 0; }
  .home-hero-slide { background-position: center; background-size: 100% 100%; }
  .page-banner { height: auto; min-height: 0; aspect-ratio: 16 / 5; background-size: 100% 100%; }
  .category-tab { width: auto; }
  .category-tab-mark { width: 58px; height: 58px; }
  .category-stage-link { min-height: 180px; }
}

/* Product inquiry modal */
body.inquiry-open { overflow: hidden; }
.product-inquiry-modal { position: fixed; inset: 0; z-index: 1000; display: flex; align-items: center; justify-content: center; padding: 24px; }
.product-inquiry-modal[hidden] { display: none; }
.product-inquiry-backdrop { position: absolute; inset: 0; background: rgba(8, 28, 48, .64); }
.product-inquiry-dialog { position: relative; z-index: 1; width: min(100%, 620px); max-height: min(720px, calc(100vh - 48px)); overflow-y: auto; padding: 42px 48px 46px; background: #fff; box-shadow: 0 24px 70px rgba(8, 28, 48, .28); }
.product-inquiry-close { position: absolute; top: 12px; right: 16px; width: 36px; height: 36px; border: 0; color: #65727c; background: transparent; font-size: 30px; font-weight: 300; line-height: 1; }
.product-inquiry-close:hover { color: var(--blue); }
.product-inquiry-dialog h2 { margin: 8px 0 6px; color: #142e49; font-size: 30px; font-weight: 600; line-height: 1.3; }
.product-inquiry-intro { margin: 0 0 26px; color: #7b8790; font-size: 14px; }
.inquiry-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 24px; }
.inquiry-field { display: flex; flex-direction: column; gap: 6px; color: #475866; font-size: 13px; }
.inquiry-field-full { grid-column: 1 / -1; }
.inquiry-field input, .inquiry-field textarea { width: 100%; border: 1px solid #dce4e8; border-radius: 2px; padding: 10px 12px; color: #1e2b35; outline: 0; background: #fbfcfd; }
.inquiry-field input { height: 42px; }
.inquiry-field textarea { min-height: 110px; resize: vertical; }
.inquiry-field input:focus, .inquiry-field textarea:focus { border-color: var(--cyan); background: #fff; box-shadow: 0 0 0 3px rgba(45, 196, 181, .12); }
.inquiry-submit { margin-top: 24px; min-width: 150px; }
@media (max-width: 600px) {
  .product-inquiry-modal { padding: 12px; }
  .product-inquiry-dialog { max-height: calc(100vh - 24px); padding: 36px 20px 28px; }
  .product-inquiry-dialog h2 { font-size: 25px; }
  .inquiry-form-grid { grid-template-columns: 1fr; gap: 15px; }
  .inquiry-field-full { grid-column: 1; }
  .inquiry-submit { width: 100%; }
}

/* Development history timeline (mobile-first vertical) */
.timeline-section { background: linear-gradient(180deg, #f6f9fc 0%, #edf2f7 100%); }
.timeline-track { position: relative; margin-top: 42px; }
.timeline-track::before { content: ""; position: absolute; top: 16px; bottom: 16px; left: 14px; width: 3px; border-radius: 2px; background: var(--blue); }
.tl-item { position: relative; display: grid; grid-template-columns: 30px 1fr; column-gap: 16px; padding: 7px 0; color: inherit; }
.tl-year { grid-column: 2; grid-row: 1; color: var(--blue-deep); font-size: 22px; font-weight: 700; line-height: 1.3; }
.tl-node { grid-column: 1; grid-row: 1 / span 2; justify-self: center; position: relative; width: 30px; height: 100%; }
.tl-node::before { display: none; }
.tl-dot { position: absolute; top: 6px; left: 50%; z-index: 1; width: 15px; height: 15px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 5px rgba(45,196,181,.18); transform: translateX(-50%); transition: transform .25s ease; }
.tl-text { grid-column: 2; grid-row: 2; margin-top: 2px; max-width: 860px; color: #5d6873; font-size: 14px; line-height: 1.75; }
.tl-item:hover .tl-year { color: var(--blue); }
.timeline-more { margin-top: 40px; text-align: center; }
.timeline-u { display: none; }
@media (min-width: 1280px) {
  .timeline-section { padding: 100px 0; }
  .timeline-track { display: grid; grid-template-columns: repeat(5, 1fr); grid-template-rows: 234px 234px; column-gap: 0; margin-top: 58px; }
  .timeline-track::before { display: none; }
  .tl-item { display: flex; flex-direction: column; align-items: center; padding: 0; text-align: center; }
  .tl-item:nth-child(1) { grid-row: 1; grid-column: 1; }
  .tl-item:nth-child(2) { grid-row: 1; grid-column: 2; }
  .tl-item:nth-child(3) { grid-row: 1; grid-column: 3; }
  .tl-item:nth-child(4) { grid-row: 1; grid-column: 4; }
  .tl-item:nth-child(5) { grid-row: 1; grid-column: 5; }
  .tl-item:nth-child(6) { grid-row: 2; grid-column: 5; }
  .tl-item:nth-child(7) { grid-row: 2; grid-column: 4; }
  .tl-item:nth-child(8) { grid-row: 2; grid-column: 3; }
  .tl-item:nth-child(9) { grid-row: 2; grid-column: 2; }
  .tl-item:nth-child(10) { grid-row: 2; grid-column: 1; }
  .tl-year { height: 44px; display: flex; align-items: flex-end; justify-content: center; font-size: 34px; line-height: 1.1; }
  .tl-node { display: flex; align-items: center; justify-content: center; width: 100%; height: 26px; }
  .tl-node::before { display: block; content: ""; position: absolute; top: 50%; left: 0; right: 0; height: 6px; margin-top: -3px; border-radius: 3px; background: var(--blue); }
  .tl-dot { position: relative; top: auto; left: auto; width: 19px; height: 19px; transform: none; box-shadow: 0 0 0 6px rgba(45,196,181,.16); }
  .tl-item:hover .tl-dot { transform: scale(1.16); }
  .tl-text { margin-top: 18px; max-width: 232px; }
  .timeline-u { display: block; position: absolute; top: 54px; right: 0; width: 46px; height: 240px; border: 6px solid var(--blue); border-left: 0; border-radius: 0 40px 40px 0; }
  .timeline-more { margin-top: 54px; }
}








/* Cooperation development: nationwide map + franchise steps */
.coop { color: #fff; background: #24272b url("/assets/addons/ldcms/yuandongtoru/images/关于我们/组 20.png") center/cover no-repeat; }
.coop .section-title { color: #fff; }
.coop .section-subtitle { color: #d1d4d7; }
.coop-grid { display: flex; align-items: center; gap: 48px; margin-top: 38px; }
.coop-map { flex: 0 0 40%; min-width: 0; }
.coop-map img { display: block; width: 100%; height: auto; border-radius: 12px; box-shadow: 0 18px 44px rgba(0,0,0,.35); }
.coop-map-art { display: block; width: 100%; aspect-ratio: 16/13; border-radius: 12px; box-shadow: inset 0 0 0 1px rgba(255,255,255,.07), 0 18px 44px rgba(0,0,0,.35); background: radial-gradient(circle at 63% 47%, rgba(7,88,170,.5), rgba(7,88,170,0) 47%), radial-gradient(circle at 57% 59%, rgba(120,190,255,.22), rgba(120,190,255,0) 24%), repeating-linear-gradient(0deg, rgba(255,255,255,.045) 0 1px, transparent 1px 15px), repeating-linear-gradient(90deg, rgba(255,255,255,.045) 0 1px, transparent 1px 15px), linear-gradient(145deg, #232b36, #191d24 62%, #14171c); }
.coop-steps { flex: 1; min-width: 0; display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 16px 0; margin: 0; padding: 0; list-style: none; }
.coop-steps li { position: relative; display: flex; align-items: center; }
.coop-steps li::after { content: '\276F'; margin: 0 9px; color: #3fae7e; font-size: 15px; font-weight: 700; line-height: 1; }
.coop-steps li:last-child::after { content: none; }
.coop-num { position: absolute; top: 7px; left: 11px; font-size: 13px; font-weight: 700; color: #c3cbd2; line-height: 1; }
.coop-txt { display: block; background: #fff; border-radius: 10px; padding: 19px 26px 17px; min-width: 132px; text-align: center; font-size: 15px; font-weight: 700; color: #20262b; line-height: 1.35; box-shadow: 0 12px 26px rgba(0,0,0,.28); }
@media (max-width: 1100px) { .coop-grid { gap: 30px; } .coop-txt { min-width: 0; padding: 16px 18px 14px; font-size: 14px; } }
@media (max-width: 900px) { .coop-grid { flex-direction: column; align-items: stretch; } .coop-map { flex: none; width: 100%; } }
@media (max-width: 640px) { .coop-steps { flex-direction: column; align-items: center; } .coop-steps li { flex-direction: column; } .coop-steps li::after { transform: rotate(90deg); margin: 6px 0; } .coop-txt { width: min(320px, 88vw); } }

/* ===== 右侧悬浮客服栏 side-bar ===== */
.side-bar { position: fixed; right: 0; top: 50%; transform: translateY(-50%); z-index: 900; display: flex; flex-direction: column; background: #1e5aa8; border-radius: 10px 0 0 10px; overflow: hidden; box-shadow: -4px 6px 18px rgba(0,0,0,.18); }
.sb-btn { display: flex; align-items: center; justify-content: center; width: 44px; height: 44px; color: #fff; background: transparent; border: 0; border-bottom: 1px solid rgba(255,255,255,.14); cursor: pointer; text-decoration: none; transition: background .2s; }
.sb-btn:last-child { border-bottom: 0; }
.sb-btn:hover { background: #164a8c; color: #fff; }
.sb-btn svg { display: block; }
.sb-wa:hover { background: #25d366; }
.sb-mail:hover { background: #c0392b; }
.sb-tel:hover { background: #27ae60; }
.sb-chat:hover { background: #8e44ad; }
@media (max-width: 640px) { .side-bar { right: 0; } .sb-btn { width: 40px; height: 40px; } }