/* 共享层：重置、设计令牌默认值、通用组件。主题只改令牌和结构差异部分。 */
:root {
  --c-primary: #1d4ed8; --c-primary-ink: #fff; --c-primary-dark: #1e3a8a; --c-primary-soft: #eef2ff;
  --c-accent: #f59e0b; --c-ink: #17202b; --c-muted: #5d6b7a; --c-bg: #fff; --c-surface: #f5f7fa;
  --c-line: #e3e8ef; --c-dark: #0f1722; --c-dark-ink: #e9eef5;
  --f-head: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --f-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --wrap: 1200px; --gutter: clamp(16px, 4vw, 32px); --radius: 8px; --radius-lg: 14px;
  --shadow: 0 1px 2px rgba(16,24,40,.06), 0 8px 24px rgba(16,24,40,.06);
  --sec-y: clamp(56px, 8vw, 104px); --head-h: 72px;
  --t-h1: clamp(28px, 4vw, 44px); --t-h2: clamp(24px, 3vw, 34px); --t-h3: 18px;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--head-h) + 16px); }
body { margin: 0; font: 16px/1.65 var(--f-body); color: var(--c-ink); background: var(--c-bg); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--c-primary); }
h1, h2, h3, h4 { font-family: var(--f-head); line-height: 1.25; margin: 0 0 .5em; font-weight: 700; letter-spacing: -.01em; text-wrap: balance; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--c-primary); outline-offset: 2px; }
.ic { width: 20px; height: 20px; flex: none; }
.ic-sm { width: 14px; height: 14px; }
.wrap { width: 100%; max-width: calc(var(--wrap) + var(--gutter) * 2); margin: 0 auto; padding: 0 var(--gutter); }
.wrap.narrow { max-width: calc(820px + var(--gutter) * 2); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -9999px; top: 0; z-index: 100; background: var(--c-primary); color: var(--c-primary-ink); padding: 8px 14px; }
.skip:focus { left: 8px; top: 8px; }

/* 按钮 */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 10px 22px; border-radius: var(--radius); border: 1.5px solid transparent; font-weight: 600; font-size: 15px; line-height: 1.2; transition: background .2s, color .2s, border-color .2s, transform .2s; white-space: nowrap; }
.btn .ic { width: 18px; height: 18px; }
.btn-lg { min-height: 52px; padding: 12px 28px; font-size: 16px; }
.btn-block { display: flex; width: 100%; }
.btn-primary { background: var(--c-primary); color: var(--c-primary-ink); }
.btn-primary:hover { background: var(--c-primary-dark); color: var(--c-primary-ink); }
.btn-ghost { border-color: var(--c-line); background: var(--c-bg); color: var(--c-ink); }
.btn-ghost:hover { border-color: var(--c-primary); color: var(--c-primary); }
.btn-light { background: #fff; color: var(--c-primary-dark); }
.btn-light:hover { background: rgba(255,255,255,.88); color: var(--c-primary-dark); }
.btn-outline-light { border-color: rgba(255,255,255,.7); color: #fff; }
.btn-outline-light:hover { background: #fff; color: var(--c-ink); }
.icon-btn { display: inline-grid; place-items: center; width: 44px; height: 44px; border: 0; background: none; border-radius: var(--radius); }

/* 区块标题 */
.sec { padding: var(--sec-y) 0; }
.sec-alt { background: var(--c-surface); }
.sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: clamp(24px, 4vw, 44px); }
.sec-head.is-center { justify-content: center; text-align: center; }
.sec-head.is-center .sec-text { margin-left: auto; margin-right: auto; }
.kicker { margin: 0 0 8px; font-size: 13px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--c-primary); }
.sec-title { font-size: var(--t-h2); margin: 0; }
.sec-text { max-width: 640px; margin: 12px 0 0; color: var(--c-muted); }
.sec-link { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; color: var(--c-primary); white-space: nowrap; }
.sec-link .ic { width: 16px; height: 16px; transition: transform .2s; }
.sec-link:hover .ic { transform: translateX(3px); }
.lead { font-size: 17px; color: var(--c-muted); }

/* 占位图（未上传图片时） */
.ph { display: grid; place-items: center; width: 100%; aspect-ratio: 4/3; background: var(--c-surface); color: var(--c-line); }
.ph .ic { width: 40px; height: 40px; }

/* 主菜单（桌面） */
.menu > ul { display: flex; align-items: center; }
.menu li { position: relative; }
.menu > ul > li > a { display: flex; align-items: center; gap: 4px; padding: 0 16px; height: var(--head-h); font-weight: 600; font-size: 15px; }
.menu .sub { position: absolute; top: 100%; left: 0; min-width: 220px; padding: 8px; background: #fff; color: var(--c-ink); border-radius: var(--radius); box-shadow: 0 12px 32px rgba(16,24,40,.14); opacity: 0; visibility: hidden; transform: translateY(6px); transition: .18s; z-index: 30; }
.menu li:hover > .sub, .menu li:focus-within > .sub { opacity: 1; visibility: visible; transform: none; }
.menu .sub a { display: block; padding: 9px 12px; border-radius: 6px; font-size: 14px; font-weight: 500; }
.menu .sub a:hover { background: var(--c-primary-soft); color: var(--c-primary); }

/* 语言切换 */
.langs { position: relative; }
.langs summary { display: flex; align-items: center; gap: 6px; list-style: none; cursor: pointer; padding: 6px 0; font-size: 14px; }
.langs summary::-webkit-details-marker { display: none; }
.langs ul { position: absolute; right: 0; top: 100%; z-index: 40; min-width: 140px; padding: 6px; background: #fff; color: var(--c-ink); border-radius: var(--radius); box-shadow: 0 12px 32px rgba(16,24,40,.16); }
.langs ul a { display: block; padding: 8px 12px; border-radius: 6px; font-size: 14px; }
.langs ul a:hover, .langs ul a[aria-current] { background: var(--c-primary-soft); color: var(--c-primary); }
.foot .langs ul { bottom: 100%; top: auto; right: auto; left: 0; }

/* Logo（无图片 Logo 时用文字标） */
.logo { display: inline-flex; align-items: center; gap: 10px; min-width: 0; }
.logo-img { display: block; height: var(--logo-h, 56px); width: auto; max-height: none; max-width: min(var(--logo-maxw, 360px), 70vw); object-fit: contain; object-position: left center; }
.foot .logo-img { height: var(--logo-h-foot, 52px); }
.drawer .logo-img { height: 40px; }
.logo-mark { display: grid; place-items: center; width: 40px; height: 40px; flex: none; border-radius: 10px; background: var(--c-primary); color: var(--c-primary-ink); font-weight: 800; font-size: 17px; letter-spacing: -.02em; }
.logo-text { display: flex; flex-direction: column; min-width: 0; line-height: 1.2; }
.logo-text b { font-family: var(--f-head); font-size: 19px; white-space: nowrap; }
.logo-text small { font-size: 11px; opacity: .7; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* 移动端抽屉 */
.drawer { position: fixed; inset: 0; z-index: 90; visibility: hidden; }
.drawer-mask { position: absolute; inset: 0; background: rgba(10,14,20,.5); opacity: 0; transition: opacity .25s; }
.drawer-panel { position: absolute; top: 0; right: 0; bottom: 0; width: min(86vw, 380px); background: var(--c-bg); color: var(--c-ink); transform: translateX(100%); transition: transform .28s cubic-bezier(.2,.8,.2,1); display: flex; flex-direction: column; gap: 16px; padding: 12px 20px 24px; overflow-y: auto; overscroll-behavior: contain; }
html.drawer-open { overflow: hidden; }
html.drawer-open .drawer { visibility: visible; }
html.drawer-open .drawer-mask { opacity: 1; }
html.drawer-open .drawer-panel { transform: none; }
.drawer-top { display: flex; align-items: center; justify-content: space-between; min-height: 56px; }
.drawer-search { display: flex; align-items: center; gap: 8px; padding: 0 14px; height: 46px; border-radius: var(--radius); background: var(--c-surface); color: var(--c-muted); }
.drawer-search input { flex: 1; border: 0; background: none; outline: none; min-width: 0; color: var(--c-ink); }
.drawer-nav { display: flex; flex-direction: column; }
.drawer-nav > a, .drawer-nav summary { display: flex; align-items: center; justify-content: space-between; padding: 14px 4px; border-bottom: 1px solid var(--c-line); font-size: 17px; font-weight: 600; list-style: none; cursor: pointer; }
.drawer-nav summary::-webkit-details-marker { display: none; }
.drawer-nav details[open] summary .ic { transform: rotate(180deg); }
.drawer-nav details a { display: block; padding: 10px 14px; color: var(--c-muted); font-size: 15px; }
.drawer-nav .on { color: var(--c-primary); }
.drawer-langs { display: flex; flex-wrap: wrap; gap: 8px; }
.drawer-langs a { padding: 6px 12px; border: 1px solid var(--c-line); border-radius: 99px; font-size: 14px; }
.drawer-langs a.on { border-color: var(--c-primary); color: var(--c-primary); }
.drawer-contact .clist { gap: 10px; }

/* 轮播 */
.carousel { position: relative; overflow: hidden; }
.carousel .slides { position: relative; height: 100%; }
.carousel .slide { position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity .8s ease, visibility .8s; }
.carousel .slide.on { opacity: 1; visibility: visible; }
.carousel .slide img { width: 100%; height: 100%; object-fit: cover; }
.carousel .slide.on img { animation: kb 9s ease-out both; }
@keyframes kb { from { transform: scale(1.06); } to { transform: scale(1); } }
.car-dots { position: absolute; left: 0; right: 0; bottom: 22px; display: flex; justify-content: center; gap: 8px; z-index: 5; }
.car-dots button { width: 28px; height: 4px; padding: 0; border: 0; border-radius: 2px; background: rgba(255,255,255,.45); transition: .3s; }
.car-dots button[aria-current="true"] { background: #fff; width: 44px; }
.car-arrow { position: absolute; top: 50%; z-index: 5; transform: translateY(-50%); width: 48px; height: 48px; border-radius: 50%; border: 0; background: rgba(0,0,0,.28); color: #fff; display: grid; place-items: center; opacity: 0; transition: .2s; }
.carousel:hover .car-arrow, .car-arrow:focus-visible { opacity: 1; }
.car-prev { left: 20px; } .car-next { right: 20px; }
@media (prefers-reduced-motion: reduce) { .carousel .slide, .carousel .slide.on img { transition: none; animation: none; } html { scroll-behavior: auto; } }

/* 内页标题区 */
.page-head { position: relative; padding: clamp(36px, 6vw, 72px) 0 clamp(28px, 4vw, 48px); background: var(--c-surface); }
.page-head.has-bg { color: #fff; padding: clamp(80px, 12vw, 150px) 0 clamp(36px, 5vw, 60px); background: var(--c-dark); }
.page-head-bg { position: absolute; inset: 0; overflow: hidden; }
.page-head-bg img { width: 100%; height: 100%; object-fit: cover; }
.page-head-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.35), rgba(0,0,0,.6)); }
.page-head-in { position: relative; }
.page-title { font-size: var(--t-h1); margin: 10px 0 0; }
.page-sub { margin: 12px 0 0; max-width: 680px; color: var(--c-muted); font-size: 17px; }
.has-bg .page-sub { color: rgba(255,255,255,.85); }
.crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; font-size: 13px; color: var(--c-muted); }
.has-bg .crumbs { color: rgba(255,255,255,.8); }
.crumbs a:hover { color: var(--c-primary); }
.crumbs .sep { opacity: .5; }

/* 产品卡片 */
.pgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: clamp(14px, 2vw, 24px); }
.pgrid-4 { grid-template-columns: repeat(4, 1fr); }
.pcard { display: flex; flex-direction: column; background: var(--c-bg); border: 1px solid var(--c-line); border-radius: var(--radius); overflow: hidden; transition: box-shadow .25s, transform .25s, border-color .25s; }
.pcard:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: transparent; }
.pcard-img { display: block; aspect-ratio: 1/1; background: var(--c-surface); overflow: hidden; }
.pcard-img img, .pcard-img .ph { width: 100%; height: 100%; object-fit: cover; aspect-ratio: auto; transition: transform .5s; }
.pcard:hover .pcard-img img { transform: scale(1.04); }
.pcard-body { display: flex; flex-direction: column; flex: 1; padding: 16px 18px 18px; }
.pcard-title { font-size: 16px; margin: 0 0 6px; line-height: 1.4; }
.pcard-sum { font-size: 14px; color: var(--c-muted); margin: 0 0 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.pcard-act { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: auto; font-size: 14px; }
.pcard-more { display: inline-flex; align-items: center; gap: 4px; color: var(--c-primary); font-weight: 600; }
.pcard-more .ic { width: 15px; height: 15px; }
.pcard-ask { display: inline-flex; align-items: center; gap: 6px; padding: 6px 10px; border-radius: 6px; background: var(--c-primary-soft); color: var(--c-primary); font-weight: 600; font-size: 13px; }
.pcard-ask .ic { width: 15px; height: 15px; }
.pcard-ask:hover { background: var(--c-primary); color: var(--c-primary-ink); }

/* 产品列表页 */
.plist { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 40px; padding-top: 40px; padding-bottom: var(--sec-y); align-items: start; }
.plist-side, .plist-main { min-width: 0; }
.plist-side { position: sticky; top: calc(var(--head-h) + 20px); display: flex; flex-direction: column; gap: 24px; }
.catnav-title, .side-contact-t { margin: 0 0 10px; font-weight: 700; font-size: 15px; }
.catnav li a { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 10px 14px; border-radius: 6px; font-size: 15px; }
.catnav li a em { font-style: normal; font-size: 12px; color: var(--c-muted); background: var(--c-surface); padding: 1px 8px; border-radius: 99px; }
.catnav li a:hover { background: var(--c-surface); }
.catnav li.on a { background: var(--c-primary); color: var(--c-primary-ink); font-weight: 600; }
.catnav li.on a em { background: rgba(255,255,255,.2); color: inherit; }
.side-contact { padding: 20px; background: var(--c-surface); border-radius: var(--radius); }
.side-contact .clist { margin-bottom: 16px; }
.sform { display: flex; height: 46px; border: 1px solid var(--c-line); border-radius: var(--radius); overflow: hidden; background: var(--c-bg); }
.sform input { flex: 1; min-width: 0; border: 0; padding: 0 14px; outline: none; background: none; }
.sform button { width: 46px; border: 0; background: var(--c-primary); color: var(--c-primary-ink); display: grid; place-items: center; }
.empty { padding: 60px 20px; text-align: center; color: var(--c-muted); }
.empty .ic { width: 40px; height: 40px; margin: 0 auto 10px; }

/* 分页 */
.pager { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; margin-top: 40px; }
.pager a, .pager span { display: inline-flex; align-items: center; gap: 4px; min-width: 40px; height: 40px; padding: 0 12px; justify-content: center; border-radius: 6px; border: 1px solid var(--c-line); font-size: 14px; }
.pager .cur { background: var(--c-primary); border-color: var(--c-primary); color: var(--c-primary-ink); }
.pager .gap { border: 0; }
.pager a:hover { border-color: var(--c-primary); }

/* 产品详情 */
.pd-crumbs { padding-top: 24px; }
.pd { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 56px); padding-top: 20px; padding-bottom: 40px; }
.pd-main { aspect-ratio: 1/1; border-radius: var(--radius-lg); overflow: hidden; background: var(--c-surface); }
.pd-main img { width: 100%; height: 100%; object-fit: cover; }
.pd-thumbs { display: flex; gap: 10px; margin-top: 12px; overflow-x: auto; }
.pd-thumbs button { flex: none; width: 76px; height: 76px; padding: 0; border: 2px solid transparent; border-radius: 8px; overflow: hidden; background: var(--c-surface); }
.pd-thumbs button.on { border-color: var(--c-primary); }
.pd-thumbs img { width: 100%; height: 100%; object-fit: cover; }
.pd-cat { display: inline-block; font-size: 13px; font-weight: 600; color: var(--c-primary); background: var(--c-primary-soft); padding: 4px 12px; border-radius: 99px; }
.pd-title { font-size: clamp(26px, 3vw, 36px); margin: 14px 0 12px; }
.pd-sum { color: var(--c-muted); font-size: 17px; }
.pd-keys { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin: 24px 0; background: var(--c-line); border: 1px solid var(--c-line); border-radius: var(--radius); overflow: hidden; }
.pd-keys div { background: var(--c-bg); padding: 12px 16px; }
.pd-keys dt { font-size: 12px; color: var(--c-muted); }
.pd-keys dd { margin: 2px 0 0; font-weight: 600; }
.pd-btns { display: flex; flex-wrap: wrap; gap: 12px; }
.pd-promise { display: flex; align-items: center; gap: 8px; margin-top: 16px; font-size: 14px; color: var(--c-muted); }
.pd-promise .ic { width: 16px; height: 16px; }
.pd-body { display: grid; grid-template-columns: minmax(0, 1fr) 380px; gap: clamp(24px, 4vw, 56px); padding-top: 24px; padding-bottom: var(--sec-y); align-items: start; }
.pd-h { font-size: 22px; margin: 0 0 18px; padding-bottom: 12px; border-bottom: 2px solid var(--c-line); position: relative; }
.pd-h::after { content: ""; position: absolute; left: 0; bottom: -2px; width: 48px; height: 2px; background: var(--c-primary); }
.pd-detail .prose + .pd-h { margin-top: 40px; }
.pd-aside { position: sticky; top: calc(var(--head-h) + 20px); }
.pd-form { padding: 24px; border: 1px solid var(--c-line); border-radius: var(--radius-lg); background: var(--c-bg); box-shadow: var(--shadow); }
.spec { width: 100%; border-collapse: collapse; font-size: 15px; }
.spec th, .spec td { padding: 12px 16px; border-bottom: 1px solid var(--c-line); text-align: left; vertical-align: top; }
.spec th { width: 36%; color: var(--c-muted); font-weight: 500; background: var(--c-surface); }

/* 正文排版 */
.prose { font-size: 16px; line-height: 1.8; }
.prose h2 { font-size: 22px; margin: 1.6em 0 .6em; }
.prose h3 { font-size: 18px; margin: 1.4em 0 .5em; }
.prose > :first-child { margin-top: 0; }
.prose ul, .prose ol { margin: 0 0 1em; padding-left: 1.3em; }
.prose ul { list-style: disc; } .prose ol { list-style: decimal; }
.prose li { margin: .3em 0; }
.prose li::marker { color: var(--c-primary); }
.prose a { color: var(--c-primary); text-decoration: underline; text-underline-offset: 3px; }
.prose img { border-radius: var(--radius); margin: 1em 0; }
.prose blockquote { margin: 1.2em 0; padding: 12px 20px; border-left: 3px solid var(--c-primary); background: var(--c-surface); color: var(--c-muted); }
.prose table { width: 100%; border-collapse: collapse; margin: 1em 0; font-size: 15px; display: block; overflow-x: auto; }
.prose th, .prose td { border: 1px solid var(--c-line); padding: 8px 12px; text-align: left; }
.prose th { background: var(--c-surface); }

/* 询盘表单 */
.iform { display: flex; flex-direction: column; gap: 16px; }
.iform .hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.iform-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 16px; }
.iform.is-compact .iform-grid { grid-template-columns: 1fr; }
.field { display: flex; flex-direction: column; gap: 6px; font-size: 14px; }
.field > span { font-weight: 600; }
.field i { color: #d93025; font-style: normal; }
.field-full { grid-column: 1 / -1; }
.field input, .field textarea { width: 100%; padding: 11px 14px; border: 1px solid var(--c-line); border-radius: var(--radius); background: var(--c-bg); outline: none; transition: border-color .2s, box-shadow .2s; }
.field input:focus, .field textarea:focus { border-color: var(--c-primary); box-shadow: 0 0 0 3px var(--c-primary-soft); }
.field textarea { resize: vertical; min-height: 96px; }
.iform-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 16px; }
.iform-note { color: var(--c-muted); font-size: 12px; }
.iform.is-compact .iform-foot .btn { width: 100%; }
.iform-product { display: flex; align-items: center; gap: 12px; padding: 10px; border-radius: var(--radius); background: var(--c-surface); }
.iform-product img, .iform-product .ph { width: 52px; height: 52px; border-radius: 6px; object-fit: cover; aspect-ratio: 1; }
.iform-product small { display: block; color: var(--c-muted); font-size: 12px; }
.iform-msg:empty { display: none; }
.iform-msg { padding: 12px 14px; border-radius: var(--radius); font-size: 14px; }
.iform-msg.is-ok { background: #e7f6ec; color: #136c2e; }
.iform-msg.is-err { background: #fdecea; color: #a1281b; }
.iform.is-sending button[type=submit] { opacity: .6; pointer-events: none; }

/* 联系方式列表 */
.clist { display: flex; flex-direction: column; gap: 14px; }
.clist li { display: flex; gap: 12px; align-items: flex-start; }
.clist-ic { display: grid; place-items: center; flex: none; width: 38px; height: 38px; border-radius: 50%; background: var(--c-primary-soft); color: var(--c-primary); }
.clist-ic .ic { width: 18px; height: 18px; }
.clist-tx { display: flex; flex-direction: column; min-width: 0; font-size: 15px; word-break: break-word; }
.clist-tx small { font-size: 12px; color: var(--c-muted); }
.clist-tx a { font-weight: 600; }

/* 首页通用区块 */
.stats-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stats-list li { display: flex; flex-direction: column; gap: 4px; }
.stats-list b { font-family: var(--f-head); font-size: clamp(32px, 4vw, 48px); line-height: 1.1; color: var(--c-primary); font-weight: 800; }
.stats-list b small, .mini-stats b small { font-size: .45em; margin-left: 4px; font-weight: 700; }
.stats-list span { color: var(--c-muted); font-size: 15px; }
.mini-stats { display: flex; flex-wrap: wrap; gap: 28px; margin: 8px 0 28px; }
.mini-stats li { display: flex; flex-direction: column; }
.mini-stats b { font-size: 30px; line-height: 1.1; color: var(--c-primary); font-family: var(--f-head); }
.mini-stats span { font-size: 13px; color: var(--c-muted); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 72px); align-items: center; }
.about-media { border-radius: var(--radius-lg); overflow: hidden; }
.about-media img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.about-text .sec-title { margin-bottom: 16px; }
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.cat-card { position: relative; display: flex; flex-direction: column; border-radius: var(--radius-lg); overflow: hidden; background: var(--c-surface); }
.cat-img img, .cat-img .ph { width: 100%; aspect-ratio: 4/3; object-fit: cover; transition: transform .5s; }
.cat-card:hover .cat-img img { transform: scale(1.05); }
.cat-img { overflow: hidden; }
.cat-body { display: flex; flex-direction: column; gap: 4px; padding: 18px 20px 20px; }
.cat-body b { font-size: 18px; font-family: var(--f-head); }
.cat-body small { color: var(--c-muted); font-size: 14px; }
.cat-body em { display: inline-flex; align-items: center; gap: 6px; margin-top: 8px; font-style: normal; font-size: 13px; font-weight: 600; color: var(--c-primary); }
.cat-body em .ic { width: 14px; height: 14px; }
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.adv-item { position: relative; padding: 28px 24px; border-radius: var(--radius-lg); background: var(--c-bg); border: 1px solid var(--c-line); }
.adv-ic { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 12px; background: var(--c-primary-soft); color: var(--c-primary); margin-bottom: 18px; }
.adv-ic .ic { width: 26px; height: 26px; }
.adv-no { position: absolute; top: 24px; right: 24px; font-size: 13px; font-weight: 700; color: var(--c-line); }
.adv-item h3 { font-size: 18px; }
.adv-item p { color: var(--c-muted); font-size: 15px; margin: 0; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: s; }
.steps li { position: relative; padding-top: 8px; }
.step-no { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; background: var(--c-primary); color: var(--c-primary-ink); font-weight: 700; margin-bottom: 16px; }
.steps h3 { font-size: 18px; }
.steps p { color: var(--c-muted); font-size: 15px; margin: 0; }
.quote-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.quote { margin: 0; padding: 28px; border-radius: var(--radius-lg); background: var(--c-surface); display: flex; flex-direction: column; gap: 14px; }
.quote-ic { width: 28px; height: 28px; color: var(--c-primary); }
.quote blockquote { margin: 0; font-size: 16px; line-height: 1.75; }
.quote figcaption { display: flex; flex-direction: column; font-size: 14px; margin-top: auto; }
.quote figcaption span { color: var(--c-muted); }
.ngrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.ncard { display: flex; flex-direction: column; }
.ncard-img { display: block; border-radius: var(--radius); overflow: hidden; aspect-ratio: 16/10; background: var(--c-surface); }
.ncard-img img, .ncard-img .ph { width: 100%; height: 100%; object-fit: cover; aspect-ratio: auto; transition: transform .5s; }
.ncard:hover .ncard-img img { transform: scale(1.04); }
.ncard-body { padding-top: 16px; }
.ncard-date { font-size: 13px; color: var(--c-muted); }
.ncard-title { font-size: 18px; margin: 6px 0 8px; line-height: 1.45; }
.ncard-sum { font-size: 14px; color: var(--c-muted); margin: 0; }
.cta { background: var(--c-primary); color: var(--c-primary-ink); padding: clamp(44px, 6vw, 72px) 0; }
.cta-in { display: flex; align-items: center; justify-content: space-between; gap: 24px 48px; flex-wrap: wrap; }
.cta h2 { font-size: clamp(24px, 3vw, 32px); margin: 0 0 6px; }
.cta p { margin: 0; opacity: .88; }
.cta-act { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.cta-phone { display: inline-flex; align-items: center; gap: 8px; font-size: 20px; font-weight: 700; color: inherit; }
.cta-phone:hover { color: inherit; opacity: .85; }
.clients { padding: 40px 0; }
.clients-t { text-align: center; color: var(--c-muted); font-size: 14px; margin-bottom: 18px; }
.clients-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 36px; }
.clients-list li { font-family: var(--f-head); font-size: 18px; font-weight: 700; color: var(--c-muted); opacity: .75; letter-spacing: .02em; }
.faq-list details { border-bottom: 1px solid var(--c-line); }
.faq-list summary { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 18px 0; font-weight: 600; font-size: 17px; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-ic { transition: transform .25s; color: var(--c-primary); }
.faq-list details[open] .faq-ic { transform: rotate(45deg); }
.faq-list p { color: var(--c-muted); padding-bottom: 18px; margin: 0; }
.gal-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.gal-grid figure { margin: 0; border-radius: var(--radius); overflow: hidden; }
.gal-grid img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.cert-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }
.cert-list li { display: flex; align-items: center; gap: 10px; padding: 14px 20px; border: 1px solid var(--c-line); border-radius: var(--radius); background: var(--c-bg); font-weight: 600; }
.cert-list .ic { color: var(--c-primary); }
.tl { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 0; border-top: 2px solid var(--c-line); }
.tl li { position: relative; padding: 24px 20px 0 0; }
.tl li::before { content: ""; position: absolute; top: -7px; left: 0; width: 12px; height: 12px; border-radius: 50%; background: var(--c-primary); box-shadow: 0 0 0 4px var(--c-bg); }
.tl b { display: block; font-size: 22px; font-family: var(--f-head); color: var(--c-primary); margin-bottom: 6px; }
.tl p { color: var(--c-muted); font-size: 15px; margin: 0; }
.contact-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(28px, 5vw, 72px); align-items: start; }
.contact-info .sec-title { margin-bottom: 16px; }
.contact-info .clist { margin: 24px 0; }
.wx-qr { display: inline-flex; flex-direction: column; align-items: center; gap: 6px; margin: 0 0 20px; padding: 10px; border: 1px solid var(--c-line); border-radius: var(--radius); background: var(--c-bg); }
.wx-qr img { width: 132px; height: 132px; object-fit: contain; }
.wx-qr figcaption { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--c-muted); }
.contact-person { display: flex; align-items: center; gap: 8px; color: var(--c-muted); }
.contact-form { padding: clamp(20px, 3vw, 36px); border-radius: var(--radius-lg); background: var(--c-bg); border: 1px solid var(--c-line); box-shadow: var(--shadow); }
.contact-form .sec-title { font-size: 24px; margin-bottom: 20px; }

/* 文章 */
.article { max-width: calc(860px + var(--gutter) * 2); padding-top: 16px; padding-bottom: var(--sec-y); }
.article-head time { color: var(--c-muted); font-size: 14px; }
.article-head h1 { font-size: clamp(26px, 3.4vw, 40px); margin: 10px 0 14px; }
.article-lead { font-size: 18px; color: var(--c-muted); }
.article-cover { margin: 28px 0; border-radius: var(--radius-lg); overflow: hidden; }
.article-cover img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.article-foot { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--c-line); }
.nf { text-align: center; }
.nf-code { font-size: 96px; font-weight: 800; line-height: 1; color: var(--c-primary); opacity: .2; margin: 0; }

/* 通用页脚 */
.foot { background: var(--c-dark); color: var(--c-dark-ink); font-size: 15px; }
.foot a:hover { color: #fff; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.3fr; gap: 40px; padding-top: 64px; padding-bottom: 48px; }
.foot-brand p { opacity: .7; margin: 18px 0; max-width: 320px; }
.foot h4 { font-size: 15px; color: #fff; margin-bottom: 16px; }
.foot-col ul { display: flex; flex-direction: column; gap: 10px; }
.foot-col li a { opacity: .75; }
.foot .clist-ic { background: rgba(255,255,255,.08); color: #fff; }
.foot .clist-tx small { color: rgba(255,255,255,.55); }
.foot .logo-text small { opacity: .6; }
.foot-bar { border-top: 1px solid rgba(255,255,255,.1); padding: 18px 0; font-size: 13px; opacity: .6; }

/* 移动端底部操作条（默认隐藏，主题按需启用） */
.mbar { display: none; }

/* 预览标识 */
.dw-preview-bar { position: fixed; left: 50%; bottom: 14px; transform: translateX(-50%); z-index: 99; padding: 7px 16px; border-radius: 99px; background: rgba(17,24,39,.86); color: #fff; font-size: 12px; pointer-events: none; white-space: nowrap; }

/* 入场动画（无 JS 时始终可见） */
.js [data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.js [data-reveal].in { opacity: 1; transform: none; }

@media (max-width: 1080px) {
  .pgrid-4 { grid-template-columns: repeat(3, 1fr); }
  .adv-grid, .steps { grid-template-columns: repeat(2, 1fr); }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .pd-body { grid-template-columns: 1fr; }
  .pd-aside { position: static; }
}
@media (max-width: 860px) {
  :root { --head-h: 60px; }
  .logo-img { height: var(--logo-h-m, 40px); max-width: min(var(--logo-maxw, 360px), 58vw); }
  .foot .logo-img { height: 44px; }
  .plist { grid-template-columns: minmax(0, 1fr); gap: 20px; padding-top: 20px; }
  .plist-side { position: static; gap: 14px; }
  .side-contact, .catnav-title { display: none; }
  .catnav ul { display: flex; gap: 8px; overflow-x: auto; margin: 0 calc(var(--gutter) * -1); padding: 0 var(--gutter) 4px; scrollbar-width: none; }
  .catnav ul::-webkit-scrollbar { display: none; }
  .catnav li a { white-space: nowrap; border: 1px solid var(--c-line); border-radius: 99px; padding: 7px 14px; font-size: 14px; }
  .catnav li a em { display: none; }
  .pd { grid-template-columns: 1fr; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .cat-grid { grid-template-columns: 1fr 1fr; }
  .ngrid { grid-template-columns: 1fr 1fr; }
  .stats-list { grid-template-columns: 1fr 1fr; gap: 28px 16px; }
  .gal-grid { grid-template-columns: 1fr 1fr; }
  .gal-grid figure:first-child:nth-last-child(odd) { grid-column: span 2; }
  .sec-head { flex-direction: column; align-items: flex-start; gap: 12px; }
  .sec-head.is-center { align-items: center; }
}
@media (max-width: 640px) {
  .pgrid, .pgrid-4 { grid-template-columns: 1fr 1fr; gap: 12px; }
  .pcard-body { padding: 12px; }
  .pcard-title { font-size: 15px; }
  .pcard-sum { display: none; }
  .pcard-act { flex-direction: column; align-items: stretch; }
  .pcard-more { display: none; }
  .pcard-ask { justify-content: center; }
  .adv-grid, .steps, .ngrid, .cat-grid { grid-template-columns: 1fr; }
  .cat-grid { gap: 12px; }
  .cat-card { flex-direction: row; align-items: center; }
  .cat-img { flex: none; width: 112px; align-self: stretch; }
  .cat-img img, .cat-img .ph { height: 100%; aspect-ratio: 1; }
  .cat-body { padding: 12px 14px; }
  .cat-body small { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; font-size: 13px; }
  .cat-body em { margin-top: 4px; }
  .iform-grid { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; gap: 28px; padding-top: 44px; }
  .pd-keys { grid-template-columns: 1fr; }
  .pd-btns .btn { flex: 1; }
  .spec th { width: 42%; }
  .tl { grid-template-columns: 1fr; border-top: 0; border-left: 2px solid var(--c-line); padding-left: 20px; }
  .tl li { padding: 0 0 22px; }
  .tl li::before { left: -27px; top: 6px; }
  .mbar { display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 60; background: var(--c-bg); border-top: 1px solid var(--c-line); padding: 6px 8px calc(6px + env(safe-area-inset-bottom)); gap: 6px; }
  .mbar a { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 6px 0; font-size: 12px; color: var(--c-muted); border-radius: 8px; }
  .mbar a.mbar-main { flex: 1.6; flex-direction: row; justify-content: center; gap: 8px; background: var(--c-primary); color: var(--c-primary-ink); font-size: 15px; font-weight: 700; }
  body.has-mbar { padding-bottom: 64px; }
  .dw-preview-bar { bottom: 78px; }
}

/* 询价篮 */
.basket-fab { position: fixed; right: 20px; bottom: 24px; z-index: 70; display: inline-flex; align-items: center; gap: 8px; padding: 12px 18px; border-radius: 99px; background: var(--c-primary); color: var(--c-primary-ink); box-shadow: 0 10px 30px rgba(0,0,0,.2); font-weight: 700; font-size: 15px; }
.basket-fab:hover { color: var(--c-primary-ink); background: var(--c-primary-dark); }
.basket-fab b { display: inline-grid; place-items: center; min-width: 24px; height: 24px; padding: 0 6px; border-radius: 12px; background: var(--c-primary-ink); color: var(--c-primary); font-size: 13px; }
.basket-fab.bump { animation: bump .4s ease; }
@keyframes bump { 40% { transform: scale(1.12); } }
[data-basket-add].is-added { background: var(--c-primary); color: var(--c-primary-ink); border-color: var(--c-primary); }
.iform-basket { padding: 14px; border: 1px solid var(--c-line); border-radius: var(--radius); background: var(--c-surface); }
.iform-basket-t { display: flex; align-items: center; gap: 8px; margin: 0 0 10px; font-weight: 700; }
.iform-basket-t small { font-weight: 400; color: var(--c-muted); font-size: 12px; }
.iform-basket ul { display: flex; flex-direction: column; gap: 8px; }
.iform-basket li { display: flex; align-items: center; gap: 10px; padding: 8px; border-radius: 6px; background: var(--c-bg); }
.iform-basket li img { width: 44px; height: 44px; border-radius: 4px; object-fit: cover; flex: none; }
.iform-basket .bn { flex: 1; min-width: 0; font-size: 14px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.iform-basket .bq { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--c-muted); }
.iform-basket .bq input { width: 80px; padding: 6px 8px; border: 1px solid var(--c-line); border-radius: 6px; }
.iform-basket .br { width: 30px; height: 30px; border: 0; border-radius: 50%; background: var(--c-surface); font-size: 18px; line-height: 1; color: var(--c-muted); }
@media (max-width: 640px) { .basket-fab { bottom: 84px; right: 12px; padding: 10px 14px; } .basket-fab span { display: none; } .iform-basket .bq input { width: 56px; } }
/* 团队成员 */
.team-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 20px; }
.member { padding: 24px; border: 1px solid var(--c-line); border-radius: var(--radius-lg); background: var(--c-bg); }
.member-av { display: grid; place-items: center; width: 56px; height: 56px; border-radius: 50%; background: var(--c-primary-soft); color: var(--c-primary); font-family: var(--f-head); font-size: 22px; font-weight: 700; margin-bottom: 14px; }
.member h3 { font-size: 18px; margin: 0 0 2px; }
.member-t { color: var(--c-primary); font-size: 14px; font-weight: 600; margin: 0 0 10px; }
.member-b { color: var(--c-muted); font-size: 14px; margin: 0; }