/* ============================================================
   WeHere Medical 主站 · Zylox 式企业官网重构版 (2026-08-30)
   结构参照：全屏分节首页 / 白色固定导航 / inner_banner 内页体系
   色板：深海军蓝 #0A2E5F 主色 · 珊瑚红 #E63946 点缀 · 纸白 #F4F7FB
   ============================================================ */
:root {
  --navy: #22303f;
  --navy-2: #2c3e50;
  --navy-deep: #16202b;
  --coral: #e58000;
  --paper: #F4F7FB;
  --ink: #182a3d;
  --muted: #5b6b7b;
  --line: #dfe7ef;
  --white: #ffffff;
  --radius: 6px;
  --shadow: 0 10px 30px rgba(7, 31, 66, 0.12);
  --nav-h: 64px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif; color: var(--ink); background: var(--white); line-height: 1.6; font-size: 16px; }
img { max-width: 100%; display: block; }
a { color: var(--navy); text-decoration: none; }
a:hover { text-decoration: none; }
.container { width: min(1200px, 92%); margin: 0 auto; }
h1, h2, h3 { line-height: 1.2; }

/* ============ 固定顶部导航（白底） ============ */
.site-nav { position: fixed; inset: 0 0 auto 0; z-index: 90; background: var(--white); border-bottom: 1px solid var(--line); height: var(--nav-h); }
.nav-inner { height: var(--nav-h); display: flex; align-items: center; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; flex: none; }
.brand img { height: 36px; width: auto; }
.brand-name { font-weight: 700; letter-spacing: .06em; font-size: 15.5px; color: var(--navy); }
.brand-name em { font-style: normal; font-weight: 300; color: var(--coral); }
.main-nav { display: flex; align-items: stretch; height: 100%; }
.main-nav > a, .nav-drop > .drop-label { display: inline-flex; align-items: center; padding: 0 12px; color: var(--ink); font-weight: 300; font-size: 14px; height: var(--nav-h); border-bottom: 3px solid transparent; cursor: pointer; white-space: nowrap; }
.main-nav > a:hover, .nav-drop:hover > .drop-label { color: var(--coral); border-bottom-color: var(--coral); }
.main-nav > a.active, .nav-drop.active > .drop-label { color: var(--coral); border-bottom-color: var(--coral); }
.nav-drop { position: relative; display: flex; }
.drop-label svg { margin-left: 5px; transition: transform .2s; }
.nav-drop:hover .drop-label svg { transform: rotate(180deg); }
.drop-panel { position: absolute; top: 100%; left: 50%; transform: translateX(-50%); background: var(--white); border-top: 3px solid var(--coral); box-shadow: 0 18px 40px rgba(17,24,39,.18); padding: 22px 26px; display: none; min-width: 640px; max-width: 92vw; }
.drop-panel.prod-panel { min-width: 300px; max-height: calc(100vh - 70px); overflow-y: auto; }
.nav-drop:hover .drop-panel, .nav-drop:focus-within .drop-panel { display: block; }
.drop-title { font-size: 12px; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); margin: 0 0 10px; }
.drop-cols { display: grid; grid-template-columns: minmax(0, 1fr); gap: 2px; }
.drop-cols a { display: flex; justify-content: space-between; align-items: center; gap: 8px; padding: 6px 10px; border-radius: 4px; color: var(--ink); font-size: 13.5px; font-weight: 300; }
.drop-cols a:hover { background: var(--paper); color: var(--coral); }
.drop-cols a span { color: var(--muted); font-size: 12px; font-weight: 400; }
.drop-cta { margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--line); display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.drop-cta a { font-weight: 300; color: var(--navy); font-size: 13.5px; }
.drop-cta a:hover { color: var(--coral); }
.nav-tools { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.search-box { display: flex; align-items: center; background: var(--paper); border: 1px solid var(--line); border-radius: 999px; padding: 2px; }
.search-box input { width: 0; opacity: 0; transition: width .25s ease, opacity .2s; border: 0; background: transparent; padding: 8px 0 8px 12px; font-size: 14px; color: var(--ink); outline: none; }
.search-box.open input { width: 190px; opacity: 1; }
.search-toggle { background: transparent; border: 0; color: var(--navy); width: 36px; height: 36px; border-radius: 999px; cursor: pointer; display: grid; place-items: center; }
.search-toggle:hover { background: var(--paper); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: var(--radius); padding: 12px 22px; font-weight: 600; border: 1.5px solid transparent; cursor: pointer; transition: .2s; font-size: 15px; }
.btn-sm { padding: 9px 16px; font-size: 13.5px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-primary { background: var(--coral); color: #fff; }
.btn-primary:hover { background: #c92836; color: #fff; }
.btn-navy { background: var(--navy); color: #fff; }
.btn-navy:hover { background: var(--navy-2); color: #fff; }
.btn-ghost { border-color: currentColor; color: inherit; background: transparent; }
.btn-ghost:hover { background: rgba(255,255,255,.14); color: #fff; }
.btn-line { border-color: var(--navy); color: var(--navy); background: transparent; }
.btn-line:hover { background: var(--navy); color: #fff; }
.nav-burger { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-burger span { display: block; width: 22px; height: 2px; background: var(--navy); margin: 5px 0; border-radius: 2px; }
.search-pop { position: absolute; top: calc(100% + 8px); right: 0; width: min(430px, 90vw); background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 8px; max-height: 60vh; overflow: auto; display: none; z-index: 95; }
.search-pop.open { display: block; }
.search-pop a { display: flex; gap: 10px; align-items: center; padding: 8px; border-radius: 4px; color: var(--ink); }
.search-pop a:hover { background: var(--paper); }
.search-pop img { width: 44px; height: 44px; object-fit: contain; border-radius: 4px; background: #f4f7fa; flex: none; }
.search-pop .t { font-size: 14px; font-weight: 600; }
.search-pop .m { font-size: 12px; color: var(--muted); }
.search-pop .none { padding: 14px; color: var(--muted); font-size: 14px; }

/* ============ 首页全屏分节 ============ */
.fp-hero { margin-top: var(--nav-h); position: relative; color: #fff; }
.fp-hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, rgba(17,24,39,.88) 0%, rgba(17,24,39,.62) 52%, rgba(17,24,39,.28) 100%); }
.fp-hero .container { position: relative; z-index: 1; max-width: 780px; }
.fp-eyebrow { text-transform: uppercase; letter-spacing: .2em; font-size: 12.5px; color: #ffd7db; margin: 0 0 14px; font-weight: 600; }
.fp-hero h1 { font-size: clamp(32px, 4.8vw, 52px); margin: 0 0 16px; }
.fp-hero .fp-sub { font-size: 17px; opacity: .94; margin: 0 0 28px; max-width: 620px; }
.fp-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.fp-section { display: flex; align-items: center; padding: 84px 0; position: relative; }
.fp-section.navy { background: radial-gradient(900px 420px at 85% 0%, rgba(230,57,70,.08), transparent 62%), radial-gradient(700px 380px at 0% 100%, rgba(77,143,214,.14), transparent 60%), var(--navy); color: #fff; }
.fp-section.paper { background: var(--paper); }
.fp-section.img-bg { background-size: cover; background-position: center; color: #fff; }
.fp-section.img-bg::before { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(17,24,39,.78), rgba(17,24,39,.45)); }
.fp-section.img-bg .container { position: relative; z-index: 1; width: min(1200px, 92%); margin: 0 auto; }
.fp-inner { width: 100%; }

/* About 分节：左文右图 */
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px; align-items: center; }
.split .sec-num { font-size: 13px; letter-spacing: .18em; text-transform: uppercase; color: var(--coral); font-weight: 700; margin: 0 0 10px; }
.split h2 { font-size: clamp(26px, 3.2vw, 38px); margin: 0 0 18px; }
.split p { color: var(--muted); font-size: 15.5px; margin: 0 0 14px; }
.navy .split p { color: rgba(255,255,255,.82); }
.split-img { position: relative; }
.split-img img { width: 100%; max-width: 520px; height: auto; aspect-ratio: 1/1; object-fit: cover; border-radius: 220px 220px var(--radius) var(--radius); box-shadow: var(--shadow); margin: 0 auto; }
.split-more { display: inline-flex; align-items: center; gap: 8px; margin-top: 16px; font-weight: 700; color: var(--coral); }
.navy .split-more { color: #ff97a1; }
.split-more::after { content: "→"; transition: transform .2s; }
.split-more:hover::after { transform: translateX(5px); }

/* Products 分节：左标题+分类列表 / 右两张大卡 */
.prod-cols { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 52px; align-items: center; width: 100%; }
.big-cat { display: block; position: relative; border-radius: var(--radius); overflow: hidden; aspect-ratio: 4/3; background: var(--navy-deep); }
.big-cat img { width: 100%; height: 100%; object-fit: cover; opacity: .82; transition: transform .35s, opacity .3s; }
.big-cat:hover img { transform: scale(1.04); opacity: .95; }
.big-cat .bc-label { position: absolute; inset: auto 0 0 0; padding: 18px 20px; background: linear-gradient(180deg, transparent, rgba(17,24,39,.92)); color: #fff; display: flex; justify-content: space-between; align-items: center; }
.big-cat .bc-label b { font-size: 18px; }
.big-cat .bc-label span { color: #ffd7db; font-size: 13px; }
.cat-links { margin: 18px 0 26px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 8px 14px; }
.cat-links a { color: rgba(255,255,255,.9); padding: 11px 14px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius); font-size: 13.5px; display: flex; justify-content: space-between; align-items: center; transition: .2s; }
.cat-links a:hover { color: #fff; border-color: var(--coral); background: rgba(230,57,70,.14); }
.cat-links a span { color: rgba(255,255,255,.5); }

/* 全球分节（情感区块） */
.global-center { max-width: 700px; }
.global-center h2 { font-size: clamp(28px, 3.6vw, 44px); margin: 0 0 14px; }
.global-center p { font-size: 17px; opacity: .93; margin: 0 0 26px; }

/* 资源双栏（Download / Videos） */
.duo-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 26px; }
.duo-card { position: relative; border-radius: var(--radius); overflow: hidden; aspect-ratio: 16/10; display: flex; align-items: flex-end; color: #fff; background: var(--navy-deep); }
.duo-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.duo-card:hover img { transform: scale(1.05); }
.duo-card .duo-body { position: relative; z-index: 1; padding: 24px; background: linear-gradient(180deg, transparent, rgba(17,24,39,.9) 70%); width: 100%; }
.duo-card h3 { margin: 0 0 6px; font-size: 21px; }
.duo-card p { margin: 0 0 10px; opacity: .85; font-size: 14px; }
.duo-card .duo-more { font-weight: 700; color: #ffd7db; font-size: 14px; }
.duo-card .duo-more::after { content: " →"; }

/* CTA 分节 */
.fp-cta-section { text-align: center; }
.fp-cta-section .fp-inner { max-width: 660px; margin: 0 auto; }
.fp-cta-section h2 { font-size: clamp(28px, 3.6vw, 44px); margin: 0 0 12px; }
.fp-cta-section p { opacity: .92; margin: 0 0 26px; font-size: 16.5px; }

/* ============ 内页 inner_banner ============ */
.inner-banner { margin-top: var(--nav-h); min-height: 46vh; display: flex; flex-direction: column; justify-content: center; background-size: cover; background-position: center 30%; position: relative; color: #fff; }
.inner-banner::before { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(17,24,39,.82), rgba(17,24,39,.66)); }
.inner-banner .container { position: relative; z-index: 1; text-align: center; padding: 48px 0; }
.inner-banner h1 { font-size: clamp(28px, 3.8vw, 42px); margin: 0 0 8px; letter-spacing: .02em; }
.inner-banner .ib-sub { opacity: .88; font-size: 15px; margin: 0; }
.crumbs { font-size: 13px; color: rgba(255,255,255,.8); display: flex; flex-wrap: wrap; gap: 7px; justify-content: center; align-items: center; margin-top: 14px; }
.crumbs a { color: #fff; opacity: .9; }
.crumbs a:hover { color: #ffd7db; }
.crumbs i { font-style: normal; color: rgba(255,255,255,.5); }
.crumbs span { font-weight: 700; color: #fff; }
.page-body { padding: 54px 0 70px; }

/* ============ 通用组件 ============ */
.sec { padding: 54px 0; }
.sec-title { font-size: 24px; margin: 0 0 20px; color: var(--navy); }
.p-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.p-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; color: var(--ink); transition: box-shadow .2s, transform .2s, border-color .2s; display: flex; flex-direction: column; }
.p-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: transparent; }
.p-card-img { position: relative; aspect-ratio: 1; background: #f4f7fa; display: grid; place-items: center; }
.p-card-img img { width: 100%; height: 100%; object-fit: contain; padding: 14px; }
.p-card-body { padding: 12px 14px 14px; }
.p-card-body h3 { font-size: 14.5px; margin: 0 0 6px; font-weight: 600; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 40px; }
.p-model { font-size: 12.5px; color: var(--muted); display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 100%; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.chip { border: 1px solid var(--line); border-radius: 999px; padding: 7px 14px; font-size: 13.5px; color: var(--ink); background: #fff; }
.chip:hover { border-color: var(--coral); color: var(--coral); }
.chip span { color: var(--muted); font-size: 12px; margin-left: 3px; }
.cat-search { width: min(460px, 100%); padding: 10px 14px; border: 1.5px solid var(--line); border-radius: 4px; font-size: 14px; margin: 4px 0 22px; outline: none; }
.cat-search:focus { border-color: var(--navy); }
.empty-note { color: var(--muted); padding: 26px 0; }

/* 产品详情 */
.product-detail { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 4fr); gap: 40px; padding-top: 10px; }
.pd-gallery { position: sticky; top: calc(var(--nav-h) + 16px); align-self: start; }
.pd-main-img { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; aspect-ratio: 1; display: grid; place-items: center; }
.pd-main-img img { width: 100%; height: 100%; object-fit: contain; }
.pd-thumbs { display: flex; gap: 8px; margin-top: 10px; overflow-x: auto; padding-bottom: 4px; }
.pd-thumbs button { flex: none; width: 62px; height: 62px; border: 2px solid var(--line); border-radius: 4px; background: #fff; cursor: pointer; padding: 4px; }
.pd-thumbs button.active { border-color: var(--coral); }
.pd-thumbs img { width: 100%; height: 100%; object-fit: contain; }
.pd-name { font-size: 25px; margin: 2px 0 16px; }
.pd-attrs { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin-bottom: 18px; }
.pd-attr { display: grid; grid-template-columns: 150px 1fr; border-bottom: 1px solid var(--line); font-size: 14px; }
.pd-attr:last-child { border-bottom: 0; }
.pd-attr .k { background: var(--paper); padding: 9px 14px; color: var(--muted); font-weight: 600; }
.pd-attr .v { padding: 9px 14px; }
.pd-video { margin-bottom: 18px; }
.pd-video video { width: 100%; border-radius: var(--radius); background: #000; aspect-ratio: 16/9; }
.pd-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.pd-note { font-size: 13.5px; color: var(--muted); display: flex; align-items: center; gap: 7px; }
.rich-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.rich-dot-blue { background: var(--coral); }
.pd-desc { padding: 34px 0 20px; border-top: 1px solid var(--line); }
.pd-desc h2 { font-size: 20px; }
.rich-desc { border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; overflow-x: auto; background: #fff; }
.rich-desc img { max-width: 100%; height: auto; }
.rich-desc table { border-collapse: collapse; }
.rich-desc td, .rich-desc th { border: 1px solid var(--line); padding: 6px 10px; }
.pd-related { padding: 40px 0 60px; border-top: 1px solid var(--line); }

/* 指标带 */
.rich-metrics { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 22px 24px; }
.rich-metric { text-align: center; }
.rich-metric b { display: block; font-size: 27px; color: var(--navy); }
.rich-metric span { font-size: 13px; color: var(--muted); }

/* 卡片网格（values/compliance） */
.val-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.val-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.val-card h3 { margin: 0 0 8px; font-size: 16px; color: var(--navy); }
.val-card p { margin: 0; font-size: 14px; color: var(--ink); }
.quote-card { border-left: 4px solid var(--coral); background: var(--paper); border-radius: var(--radius); padding: 16px 20px; font-size: 15px; color: var(--navy); margin: 18px 0 0; }

/* 下载中心 */
.dl-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.dl-card { display: flex; align-items: center; gap: 12px; border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; color: var(--ink); background: #fff; transition: box-shadow .2s, transform .2s; }
.dl-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.dl-icon { flex: none; background: var(--navy); color: #fff; font-weight: 700; font-size: 12px; border-radius: 4px; padding: 10px 9px; }
.dl-name { font-size: 14px; font-weight: 600; flex: 1; word-break: break-word; }
.dl-go { color: var(--coral); font-size: 13px; flex: none; }

/* 视频页 */
.video-wrap { border-radius: var(--radius); overflow: hidden; background: #000; aspect-ratio: 16/9; max-width: 880px; }
.video-wrap video { width: 100%; height: 100%; display: block; }
.play-badge { position: absolute; inset: 0; display: grid; place-items: center; font-size: 30px; color: #fff; background: rgba(17,24,39,.35); }

/* 联系页 */
.contact-cols { display: grid; grid-template-columns: 1.5fr 1fr; gap: 34px; }
.inquiry-form { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; display: grid; gap: 14px; }
.inquiry-form label { display: grid; gap: 6px; font-size: 13.5px; font-weight: 600; color: var(--ink); }
.inquiry-form label b { color: var(--coral); }
.inquiry-form input, .inquiry-form textarea { border: 1.5px solid var(--line); border-radius: 4px; padding: 10px 12px; font-size: 14px; font-family: inherit; outline: none; width: 100%; }
.inquiry-form input:focus, .inquiry-form textarea:focus { border-color: var(--navy); }
.form-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 14px; }
.form-msg { font-size: 14px; margin: 0; }
.form-msg.ok { color: #1c7c3c; }
.form-msg.err { color: var(--coral); }
.inquiry-form button[disabled] { opacity: .6; cursor: wait; }

/* ============ 页脚（多列网格） ============ */
.site-footer { background: var(--navy-deep); color: #c9d6e2; margin-top: 60px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(4, minmax(0, 1fr)); gap: 30px; padding: 50px 0 36px; }
.f-brand { color: #fff; font-weight: 700; letter-spacing: .08em; font-size: 19px; margin-bottom: 10px; }
.f-brand em { font-style: normal; font-weight: 300; color: #ff97a1; }
.f-about p { font-size: 13.5px; line-height: 1.7; opacity: .85; }
.f-col h4 { color: #fff; font-size: 14px; margin: 0 0 12px; text-transform: uppercase; letter-spacing: .08em; }
.f-col a { display: block; color: #c9d6e2; padding: 4px 0; font-size: 13.5px; }
.f-col a:hover { color: #fff; }
.f-col p { font-size: 13.5px; margin: 6px 0; }
.f-social { display: flex; gap: 14px; }
.footer-base { border-top: 1px solid rgba(255,255,255,.14); padding: 14px 0; font-size: 12.5px; }
.footer-base .container { color: #8fa3b5; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.footer-base a { color: #c9d6e2; margin-left: 16px; }

/* ============ 右侧浮动工具栏 ============ */
.float-bar { position: fixed; right: 0; top: 42%; z-index: 80; display: flex; flex-direction: column; gap: 2px; }
.float-bar a { width: 44px; height: 44px; background: var(--navy); color: #fff; display: grid; place-items: center; transition: background .2s; }
.float-bar a:hover { background: var(--coral); }
.float-bar svg { width: 19px; height: 19px; }

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .p-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .split, .prod-cols, .contact-cols { grid-template-columns: 1fr; gap: 28px; }
  .split-img img { height: 380px; border-radius: 180px 180px var(--radius) var(--radius); }
  .val-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
  .main-nav { position: fixed; inset: var(--nav-h) 0 auto 0; background: #fff; flex-direction: column; height: auto; padding: 10px 5%; box-shadow: 0 18px 30px rgba(17,24,39,.15); display: none; max-height: calc(100dvh - var(--nav-h)); overflow: auto; }
  .main-nav.open { display: flex; }
  .main-nav > a, .nav-drop > .drop-label { height: auto; padding: 13px 8px; border-bottom: 1px solid var(--line); width: 100%; justify-content: space-between; }
  .drop-panel { position: static; transform: none; display: none; box-shadow: none; border-top: 0; padding: 0 0 8px 12px; min-width: 0; max-width: none; }
  .nav-drop:hover .drop-panel { display: none; }
  .nav-drop:focus-within .drop-panel, .nav-drop.open .drop-panel { display: block; }
  .drop-cols { grid-template-columns: 1fr; }
  .nav-drop { flex-direction: column; align-items: stretch; }
  .drop-panel.prod-panel { min-width: 0; max-height: none; }
  .nav-burger { display: block; }
  .nav-tools .btn { display: none; }
  .fp-section { min-height: 0; padding: 60px 0; }
  .fp-hero { min-height: 76vh; }
  .duo-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .rich-metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .float-bar { display: none; }
}
@media (max-width: 620px) {
  .p-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .val-grid { grid-template-columns: 1fr; }
  .dl-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .brand-name { display: none; }
  .fp-hero h1 { font-size: 30px; }
  .inner-banner { min-height: 38vh; }
  .search-box.open input { width: 100px; }
  .pd-attr { grid-template-columns: 118px 1fr; }
  .split-img img { height: 300px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}

/* ============ Hero 轮播 ============ */
.fp-slide { min-height: calc(100dvh - var(--nav-h)); display: none; align-items: center; background-size: cover; background-position: center; position: relative; color: #fff; }
.fp-slide::before { content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, rgba(17,24,39,.88) 0%, rgba(17,24,39,.62) 52%, rgba(17,24,39,.28) 100%); }
.fp-slide.active { display: flex; }
.fp-slide .container { position: relative; z-index: 1; max-width: 780px; }
.hero-dots { position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; z-index: 2; }
.hero-dots button { width: 34px; height: 4px; border: 0; border-radius: 2px; background: rgba(255,255,255,.35); cursor: pointer; transition: background .2s; padding: 0; }
.hero-dots button.active { background: var(--coral); }
.fp-hero .hero-eyebrow-cyan { color: #9fe8ff; }
@media (prefers-reduced-motion: reduce) { .fp-slide { transition: none; } }
.f-social-row { display: flex; gap: 10px; margin-top: 12px; }
.f-social-row a { width: 36px; height: 36px; border: 1px solid rgba(255,255,255,.25); border-radius: 50%; display: grid; place-items: center; color: #fff; transition: .2s; }
.f-social-row a:hover { background: var(--coral); border-color: var(--coral); }
.f-social-row svg { width: 16px; height: 16px; }

/* ============ 新闻条状列表 ============ */
.news-list { display: flex; flex-direction: column; }
.news-row { display: flex; gap: 24px; align-items: flex-start; padding: 22px 4px; border-bottom: 1px solid var(--line); color: var(--ink); transition: background .2s; }
.news-row:hover { background: var(--paper); }
.news-row:hover h3 { color: var(--coral); }
.nr-thumb { flex: none; width: 230px; aspect-ratio: 3/2; border-radius: var(--radius); overflow: hidden; background: #f4f7fa; }
.nr-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
.news-row:hover .nr-thumb img { transform: scale(1.05); }
.nr-body { flex: 1; min-width: 0; }
.nr-body h3 { font-size: 18px; margin: 6px 0 8px; line-height: 1.4; transition: color .2s; }
.nr-excerpt { margin: 0; color: var(--muted); font-size: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.nr-arrow { flex: none; align-self: center; color: var(--line); font-size: 20px; transition: .2s; }
.news-row:hover .nr-arrow { color: var(--coral); transform: translateX(4px); }
.news-list.compact .news-row { padding: 14px 2px; gap: 16px; }
.news-list.compact .nr-thumb { width: 132px; aspect-ratio: 16/10; }
.news-list.compact .nr-body h3 { font-size: 15.5px; margin: 4px 0 4px; }
.news-list.compact .nr-excerpt { display: none; }
.news-list.compact .news-date { font-size: 12px; }
@media (max-width: 720px) {
  .news-row { gap: 14px; padding: 16px 0; }
  .nr-thumb { width: 116px; aspect-ratio: 4/3; }
  .nr-body h3 { font-size: 15px; }
  .nr-excerpt { display: none; }
  .nr-arrow { display: none; }
}

/* ============ 下载中心封面卡 ============ */
.dl-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.dl-card { display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; color: var(--ink); background: #fff; transition: box-shadow .2s, transform .2s; }
.dl-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.dl-cover { aspect-ratio: 3/4; background: #f4f7fa; display: grid; place-items: center; overflow: hidden; }
.dl-cover img { width: 100%; height: 100%; object-fit: cover; }
.dl-name { padding: 12px 14px 6px; font-size: 13.5px; font-weight: 600; flex: 1; }
.dl-go { padding: 0 14px 12px; color: var(--coral); font-size: 12.5px; font-weight: 600; }
@media (max-width: 1024px) { .dl-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 720px) { .dl-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 480px) { .dl-grid { grid-template-columns: 1fr; } }

/* ============ 新闻纯文字条 ============ */
.news-row.text-only { display: grid; grid-template-columns: 118px minmax(0, 1fr) 30px; gap: 14px; align-items: baseline; padding: 20px 6px; }
.news-row.text-only .news-date { margin: 0; font-size: 13.5px; font-weight: 600; }
.news-row.text-only .nr-t { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.news-row.text-only .nr-t-title { font-size: 16.5px; font-weight: 600; color: var(--ink); line-height: 1.4; transition: color .2s; }
.news-row.text-only:hover .nr-t-title { color: var(--coral); }
.news-row.text-only .nr-excerpt { font-size: 13.5px; color: var(--muted); margin: 0; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
.news-row.text-only .nr-arrow { align-self: center; justify-self: end; }
@media (max-width: 720px) {
  .news-row.text-only { grid-template-columns: 1fr 24px; gap: 6px; padding: 15px 2px; }
  .news-row.text-only .news-date { grid-column: 1; }
  .news-row.text-only .nr-t { grid-column: 1; }
  .news-row.text-only .nr-arrow { grid-column: 2; grid-row: 1; }
}

/* ============ Winner 式区块头 / offer 卡 / 居中按钮 ============ */
.sec-head-center { text-align: center; max-width: 760px; margin: 0 auto 34px; }
.sec-head-center .sec-num { margin-bottom: 8px; }
.sec-title-lg { font-size: clamp(26px, 3.2vw, 36px); margin: 0 0 10px; color: var(--ink); }
.sec-title-lg::before { display: none; }
.sec-sub { color: var(--muted); font-size: 15px; margin: 0; }
.center-cta { text-align: center; margin-top: 28px; }
.offer-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.offer-card { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; color: var(--ink); transition: box-shadow .25s, transform .25s, border-color .25s; }
.offer-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); border-color: transparent; }
.offer-img { aspect-ratio: 4/3; background: var(--paper); overflow: hidden; }
.offer-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.offer-card:hover .offer-img img { transform: scale(1.05); }
.offer-body { padding: 18px 20px 20px; display: flex; flex-direction: column; align-items: flex-start; gap: 6px; }
.offer-body h3 { margin: 0; font-size: 18px; line-height: 1.35; }
.offer-count { color: var(--muted); font-size: 13px; }
.offer-more { margin-top: 8px; font-weight: 700; color: var(--coral); font-size: 13.5px; display: inline-flex; gap: 6px; align-items: center; }
.offer-more svg { transition: transform .2s; }
.offer-card:hover .offer-more svg { transform: translateX(4px); }
@media (max-width: 960px) { .offer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .offer-grid { grid-template-columns: 1fr; } }

/* ============ 首页产品轮播静态化（无 JS 全可见，横向排列）============ */
.product-grid-list-lx .el-carousel__container { height: auto !important; }
.product-grid-list-lx .el-carousel__item { display: block !important; position: static !important; transform: none !important; -webkit-transform: none !important; width: auto !important; height: auto !important; opacity: 1 !important; }
.product-grid-list-lx .el-carousel__indicators,
.product-grid-list-lx .el-carousel__arrow { display: none !important; }
.product-grid-list-lx .el-carousel { overflow: hidden; }
.product-grid-list-lx .product-grid-item { display: inline-block; vertical-align: top; width: 25%; padding: 0 10px; box-sizing: border-box; }
.product-grid-list-lx .product-grid-item .product-grid-title { font-size: 14px; color: var(--ink); margin: 10px 0 4px; line-height: 1.4; }
.product-grid-list-lx .product-grid-item .product-grid-price { font-size: 13px; color: var(--coral); margin: 0 0 14px; }
.product-grid-list-lx .product-grid-item img { width: 100%; height: auto; display: block; }
@media (max-width: 1024px) { .product-grid-list-lx .product-grid-item { width: 33%; } }
@media (max-width: 720px)  { .product-grid-list-lx .product-grid-item { width: 50%; } }

/* ===== 产品总览页：分目录区块 ===== */
.prod-toolbar { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between; margin: 44px 0 26px; }
.prod-toolbar .cat-search { margin: 0; }
.prod-group { margin: 0 0 42px; }
.prod-group-head { display: flex; flex-wrap: wrap; gap: 12px; align-items: baseline; justify-content: space-between; border-bottom: 2px solid var(--line); padding-bottom: 10px; margin: 0 0 18px; }
.prod-group-head .sec-title { margin: 0; }
.group-count { font-size: 14px; color: var(--muted); font-weight: 500; }
.group-more { font-size: 14px; font-weight: 600; color: var(--coral); white-space: nowrap; }
.group-more:hover { text-decoration: underline; }
.p-sub { display: block; font-size: 11.5px; color: var(--muted); text-transform: uppercase; letter-spacing: .4px; margin: 0 0 4px; }

/* ===== /products 页：分类下拉菜单 ===== */
.cat-dd { position: relative; max-width: 560px; margin: 0 0 34px; }
.cat-dd-btn { display: flex; align-items: center; gap: 12px; width: 100%; padding: 13px 16px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); font: inherit; font-size: 15px; font-weight: 600; color: var(--navy); cursor: pointer; transition: border-color .2s, box-shadow .2s; }
.cat-dd-btn:hover, .cat-dd.open .cat-dd-btn { border-color: var(--navy); box-shadow: var(--shadow); }
.cat-dd-label { flex: 1; text-align: left; }
.cat-dd-meta { font-size: 12.5px; font-weight: 500; color: var(--muted); white-space: nowrap; }
.cat-dd-btn svg { transition: transform .2s; flex: none; }
.cat-dd.open .cat-dd-btn svg { transform: rotate(180deg); }
.cat-dd-panel[hidden] { display: none; }
.cat-dd-panel { position: absolute; top: calc(100% + 6px); left: 0; right: 0; z-index: 60; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 8px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); max-height: 420px; overflow: auto; }
.cat-dd-panel a { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 12px; border-radius: 4px; color: var(--ink); font-size: 14px; text-decoration: none; }
.cat-dd-panel a:hover { background: var(--paper); color: var(--navy); }
.cat-dd-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cat-dd-n { flex: none; font-size: 12px; font-weight: 600; color: var(--muted); background: var(--paper); border-radius: 10px; padding: 2px 8px; }
.cat-dd-panel a:hover .cat-dd-n { background: #fff; color: var(--coral); }
@media (max-width: 720px) { .cat-dd-panel { grid-template-columns: 1fr; max-height: 320px; } .cat-dd-meta { display: none; } }

/* ===== 新闻悬浮返回按钮 ===== */
.news-back-fab {
  position: fixed; bottom: 28px; left: 28px;
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--navy, #22303f); color: #fff;
  padding: 9px 16px; border-radius: 24px;
  text-decoration: none; font-size: 14px; font-weight: 500;
  box-shadow: 0 4px 16px rgba(0,0,0,.28);
  transition: background .18s, transform .14s, opacity .18s;
  opacity: 0; pointer-events: none;
  z-index: 200;
}
.news-back-fab.visible { opacity: 1; pointer-events: all; }
.news-back-fab:hover { background: var(--coral, #e58000); transform: translateX(-2px); }
@media (max-width: 600px) { .news-back-fab { bottom: 18px; left: 18px; font-size: 13px; padding: 8px 14px; } }

/* ===== 图片 Lightbox ===== */
#lb-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.92);
  display: flex; align-items: center; justify-content: center;
  z-index: 99999; opacity: 0; pointer-events: none;
  transition: opacity .22s ease;
}
#lb-overlay.open { opacity: 1; pointer-events: all; }
#lb-overlay img {
  max-width: 94vw; max-height: 94vh; object-fit: contain;
  border-radius: 4px; box-shadow: 0 8px 40px rgba(0,0,0,.7);
  cursor: default;
}
#lb-overlay .lb-close,
#lb-overlay .lb-prev,
#lb-overlay .lb-next {
  position: absolute; color: #fff; cursor: pointer;
  font-size: 32px; line-height: 1; user-select: none;
  opacity: .7; transition: opacity .15s;
}
#lb-overlay .lb-close:hover,
#lb-overlay .lb-prev:hover,
#lb-overlay .lb-next:hover { opacity: 1; }
#lb-overlay .lb-close { top: 18px; right: 22px; font-size: 36px; }
#lb-overlay .lb-prev { left: 14px; top: 50%; transform: translateY(-50%); }
#lb-overlay .lb-next { right: 14px; top: 50%; transform: translateY(-50%); }
@media (max-width: 600px) {
  #lb-overlay .lb-prev { left: 6px; }
  #lb-overlay .lb-next { right: 6px; }
}