:root {
  color-scheme: light;
  --ink: #121722;
  --muted: #626d7a;
  --line: #e5e9ef;
  --paper: #ffffff;
  --panel: #f5f7fa;
  --blue: #1355b8;
  --cyan: #0f9f8f;
  --dark: #101722;
  font-family: Inter, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 86px; }
body { margin: 0; background: var(--paper); color: var(--ink); line-height: 1.65; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.site-header { align-items: center; background: rgba(255,255,255,.92); border-bottom: 1px solid var(--line); display: flex; gap: 28px; justify-content: space-between; min-height: 70px; padding: 0 5vw; position: sticky; top: 0; z-index: 10; backdrop-filter: blur(14px); }
.brand { align-items: center; display: flex; gap: 12px; min-width: 180px; }
.brand span:last-child { display: grid; line-height: 1.15; }
.brand small { color: var(--muted); font-size: 12px; }
.logo-mark { align-items: center; background: linear-gradient(135deg, var(--blue), var(--cyan)); border-radius: 8px; color: #fff; display: grid; font-weight: 800; height: 42px; justify-items: center; letter-spacing: 0; width: 42px; }
nav { display: flex; gap: 26px; justify-content: center; }
nav a { color: #1f2a37; font-size: 15px; font-weight: 600; white-space: nowrap; }
.header-actions-top { align-items: center; display: flex; gap: 10px; }
.header-phone { background: #eef5ff; border-radius: 999px; color: var(--blue); font-size: 14px; font-weight: 700; padding: 10px 16px; white-space: nowrap; }
.lang-link { border: 1px solid var(--line); border-radius: 999px; color: var(--blue); font-size: 13px; font-weight: 800; padding: 8px 12px; white-space: nowrap; }
.hero { align-items: center; background: linear-gradient(180deg, #f7f9fc 0%, #ffffff 100%); display: grid; gap: 38px; grid-template-columns: minmax(0, 1.02fr) minmax(360px, .98fr); min-height: 540px; overflow: hidden; padding: 54px 6vw 46px; position: relative; }
.hero-copy, .hero-visual { position: relative; z-index: 1; }
.eyebrow { color: var(--blue); font-size: 13px; font-weight: 800; letter-spacing: 0; margin: 0 0 12px; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(40px, 5vw, 66px); letter-spacing: 0; line-height: 1.05; margin-bottom: 18px; }
h2 { font-size: clamp(30px, 3.2vw, 44px); line-height: 1.14; margin-bottom: 14px; }
h3 { font-size: 22px; line-height: 1.25; margin-bottom: 10px; }
.lead { color: #3b4654; font-size: clamp(18px, 1.8vw, 22px); max-width: 720px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 24px; }
.button { border-radius: 999px; display: inline-flex; font-weight: 800; justify-content: center; min-width: 132px; padding: 12px 20px; }
.button.primary { background: var(--blue); color: #fff; }
.button.secondary { background: #eef2f7; color: #17212f; }
.button.light { background: #fff; color: var(--blue); }
.text-link { color: var(--blue); display: inline-flex; font-weight: 800; }
.hero-visual { align-items: center; display: grid; min-height: 360px; place-items: center; }
.hero-main { filter: drop-shadow(0 24px 34px rgba(8, 24, 48, .2)); max-height: 360px; object-fit: contain; }
.hero-panel { background: rgba(255,255,255,.94); border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 20px 42px rgba(18,31,51,.14); display: grid; left: 4%; padding: 16px 22px; position: absolute; top: 14%; }
.hero-panel.alt { bottom: 14%; left: auto; right: 2%; top: auto; }
.hero-panel strong { color: var(--blue); font-size: 28px; line-height: 1; }
.hero-panel span { color: var(--muted); font-size: 14px; }
.home-highlights { display: grid; gap: 0; grid-template-columns: repeat(4, 1fr); padding: 0 6vw 34px; }
.home-highlights article { background: #fff; border: 1px solid var(--line); border-right: 0; min-height: 190px; padding: 24px; }
.home-highlights article:first-child { border-radius: 8px 0 0 8px; }
.home-highlights article:last-child { border-radius: 0 8px 8px 0; border-right: 1px solid var(--line); }
.home-highlights span,
.capability-cards span,
.service-grid span,
.contact-card span { color: var(--blue); display: block; font-size: 13px; font-weight: 800; margin-bottom: 8px; }
.home-highlights strong { display: block; font-size: 20px; line-height: 1.35; margin-bottom: 10px; }
.home-highlights p { color: var(--muted); font-size: 15px; margin-bottom: 0; }
.section, .product-detail-section { padding: 52px 6vw; }
.products-section { scroll-margin-top: 86px; }
.section-title { margin: 0 auto 26px; max-width: 880px; text-align: center; }
.section-title p { color: var(--muted); }
.entity-section { background: #f8fafc; }
.entity-layout { align-items: stretch; display: grid; gap: 24px; grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr); }
.entity-copy { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 28px; }
.entity-copy p { color: #3b4654; font-size: 17px; }
.about-proof { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.about-proof span { background: #eef5ff; border-radius: 999px; color: var(--blue); font-weight: 800; padding: 8px 12px; }
.capability-cards { display: grid; gap: 14px; }
.capability-cards article { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 22px; }
.capability-cards strong { display: block; font-size: 20px; line-height: 1.35; }
.product-grid { display: grid; gap: 24px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.product-card { background: #fff; border: 1px solid var(--line); border-radius: 8px; display: flex; flex-direction: column; min-height: 456px; overflow: hidden; }
.product-image { align-items: center; aspect-ratio: 1.35; background: linear-gradient(180deg, #edf5ff, #fff); display: flex; flex: 0 0 auto; justify-content: center; padding: 16px; }
.product-image img { max-height: 190px; object-fit: contain; }
.product-copy { display: flex; flex: 1; flex-direction: column; padding: 20px; }
.product-copy h3 { font-size: 20px; min-height: 50px; }
.product-copy p:not(.eyebrow) { color: var(--muted); flex: 1; font-size: 15px; }
.application-section { align-items: stretch; background: var(--dark); color: #fff; display: grid; gap: 0; grid-template-columns: minmax(320px, .9fr) minmax(0, 1.1fr); }
.application-media { align-items: center; background: #162233; display: flex; justify-content: center; min-height: 620px; padding: 44px; }
.application-media img { max-height: 480px; object-fit: contain; }
.application-copy { padding: 58px 6vw 58px 48px; }
.application-copy .eyebrow { color: #95e3d8; }
.application-copy h2 { color: #fff; }
.application-copy > p { color: #cbd5e1; font-size: 17px; max-width: 760px; }
.application-cards { display: grid; gap: 14px; margin-top: 28px; }
.application-cards article { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.12); border-radius: 8px; padding: 20px; }
.application-cards article.active { background: #fff; color: var(--ink); }
.application-cards span { color: var(--cyan); font-weight: 900; }
.application-cards p { color: #cbd5e1; margin-bottom: 0; }
.application-cards .active p { color: var(--muted); }
.services-section { background: #fff; }
.service-grid { display: grid; gap: 18px; grid-template-columns: repeat(4, 1fr); }
.service-grid article { background: #f8fafc; border: 1px solid var(--line); border-radius: 8px; min-height: 228px; padding: 24px; }
.service-grid h3 { font-size: 20px; }
.service-grid p { color: var(--muted); margin-bottom: 0; }
.case-grid, .article-grid { display: grid; gap: 18px; grid-template-columns: repeat(4, 1fr); }
.case-grid article, .article-grid article, .about-card { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 24px; }
.case-grid span { color: var(--blue); font-weight: 900; }
.case-grid p, .article-grid p, .about-card p { color: var(--muted); }
.news-section { background: #f8fafc; }
.article-grid { grid-template-columns: repeat(3, 1fr); }
.about-section { align-items: center; display: grid; gap: 36px; grid-template-columns: 1.2fr .8fr; }
.about-copy p { color: var(--muted); font-size: 17px; }
.about-card strong { display: block; font-size: 24px; line-height: 1.3; margin-bottom: 14px; }
.consult-band { background: linear-gradient(135deg, var(--blue), #0a2f69); color: #fff; display: grid; gap: 28px; grid-template-columns: minmax(0, .72fr) minmax(420px, 1.28fr); padding: 58px 6vw; }
.consult-band p { color: #dbeafe; margin-bottom: 0; max-width: 780px; }
.consult-band h2 { color: #fff; }
.consult-band .eyebrow { color: #b7f0e7; }
.contact-cards { display: grid; gap: 14px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.contact-card { background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.16); border-radius: 8px; color: #fff; min-height: 110px; padding: 20px; }
.contact-card span { color: #b7f0e7; margin-bottom: 10px; }
.contact-card strong { color: #fff; display: block; font-size: 21px; line-height: 1.35; overflow-wrap: anywhere; }
.contact-card-primary { background: #fff; color: var(--ink); }
.contact-card-primary span { color: var(--blue); }
.contact-card-primary strong { color: var(--blue); font-size: 26px; }
.contact-card-region { min-height: 96px; padding: 18px; }
.contact-card-region strong { font-size: 18px; }
.contact-card-address { min-height: 120px; }
.contact-card-address strong { font-size: 18px; }
.site-footer { align-items: center; background: #07111f; color: #d7dde6; display: grid; gap: 28px; grid-template-columns: minmax(0, 1fr) auto; padding: 32px 6vw; }
.site-footer p { color: #9da8b6; margin-bottom: 6px; }
.site-footer > p { margin: 0; white-space: nowrap; }
.footer-nav { display: grid; gap: 8px; }
.product-hero-detail { align-items: center; display: grid; gap: 44px; grid-template-columns: minmax(0, 1fr) minmax(320px, .9fr); padding: 74px 6vw 70px; }
.product-detail-copy { max-width: 840px; }
.product-detail-image { align-items: center; background: linear-gradient(180deg, #eef6ff, #fff); border-radius: 8px; display: flex; justify-content: center; margin: 0; min-height: 460px; padding: 34px; }
.product-detail-image img { max-height: 430px; object-fit: contain; }
.split { display: grid; gap: 36px; grid-template-columns: 1fr 1fr; padding-top: 20px; }
.feature-list { display: grid; gap: 12px; }
.feature-list p { background: var(--panel); border-left: 4px solid var(--blue); border-radius: 8px; margin: 0; padding: 14px 16px; }
.scene-tags { display: flex; flex-wrap: wrap; gap: 12px; }
.scene-tags span { background: #eef5ff; border-radius: 999px; color: var(--blue); font-weight: 800; padding: 10px 16px; }
.parameter-table { border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.parameter-table div { display: grid; grid-template-columns: 220px 1fr; }
.parameter-table strong, .parameter-table span { border-bottom: 1px solid var(--line); padding: 16px 18px; }
.parameter-table div:last-child strong, .parameter-table div:last-child span { border-bottom: 0; }
.parameter-table strong { background: #f5f7fa; }
.article-page { background: #f8fafc; padding: 54px 6vw 78px; }
.article-detail { background: #fff; border: 1px solid var(--line); border-radius: 8px; margin: 0 auto; max-width: 920px; padding: 48px; }
.article-detail p:not(.eyebrow):not(.lead) { color: #3b4654; font-size: 18px; }
.article-answer, .article-block, .article-entity, .article-note { border-top: 1px solid var(--line); margin-top: 30px; padding-top: 26px; }
.article-answer { background: #f5f9ff; border: 1px solid #d9e7fb; border-radius: 8px; margin-top: 24px; padding: 22px 24px; }
.article-answer h2, .article-block h2, .article-entity h2, .article-note h2 { font-size: 26px; margin: 0 0 14px; }
.article-keywords { display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0 26px; }
.article-keywords span { background: #eef5ff; border: 1px solid #d9e7fb; border-radius: 999px; color: var(--blue); font-size: 14px; font-weight: 800; padding: 8px 12px; }
.article-block ul { display: grid; gap: 10px; margin: 0; padding-left: 20px; }
.article-block li { color: #3b4654; font-size: 17px; }
.article-entity-grid { display: grid; gap: 10px; grid-template-columns: repeat(2, 1fr); }
.article-entity-grid p { background: var(--panel); border-radius: 8px; display: grid; gap: 4px; margin: 0; padding: 14px 16px; }
.article-entity-grid strong { color: var(--ink); }
.article-entity-grid span { color: #3b4654; }
.article-note { color: var(--muted); }
.article-faq { border-top: 1px solid var(--line); margin-top: 34px; padding-top: 28px; }
.article-faq h2 { font-size: 28px; margin-bottom: 18px; }
.article-faq details { border: 1px solid var(--line); border-radius: 8px; margin-top: 12px; padding: 16px 18px; }
.article-faq summary { color: var(--ink); cursor: pointer; font-weight: 800; }
.article-faq p { margin-bottom: 0; }
@media (max-width: 1080px) {
  .site-header { align-items: flex-start; flex-direction: column; gap: 14px; padding-bottom: 16px; padding-top: 16px; }
  nav { flex-wrap: wrap; justify-content: flex-start; }
  .hero, .entity-layout, .application-section, .about-section, .product-hero-detail, .split, .consult-band { grid-template-columns: 1fr; }
  .home-highlights, .product-grid, .case-grid, .service-grid { grid-template-columns: repeat(2, 1fr); }
  .home-highlights article,
  .home-highlights article:first-child,
  .home-highlights article:last-child { border: 1px solid var(--line); border-radius: 8px; }
  .application-media { min-height: 360px; }
  .application-copy { padding: 42px 6vw; }
  .hero { min-height: auto; }
  .product-card { min-height: 480px; }
}
@media (max-width: 680px) {
  html { scroll-padding-top: 118px; }
  .header-phone { display: none; }
  nav { gap: 14px; }
  nav a { font-size: 14px; }
  .hero { gap: 22px; min-height: auto; padding-bottom: 34px; padding-top: 30px; }
  .hero-visual { min-height: 250px; }
  .hero-main { max-height: 230px; }
  .hero-panel { padding: 14px 18px; }
  .hero-panel strong { font-size: 24px; }
  .vision-section { gap: 20px; padding-bottom: 30px; padding-top: 30px; }
  .section, .product-detail-section { padding-bottom: 42px; padding-top: 42px; }
  .home-highlights, .product-grid, .case-grid, .article-grid, .service-grid, .contact-cards, .site-footer { grid-template-columns: 1fr; }
  .home-highlights { padding-bottom: 24px; }
  .home-highlights article { min-height: auto; padding: 20px; }
  .product-card { min-height: auto; }
  .product-image { aspect-ratio: 1.55; }
  .product-image img { max-height: 190px; }
  .application-media { min-height: 280px; padding: 28px; }
  .application-media img { max-height: 250px; }
  .contact-card { min-height: auto; }
  .site-footer > p { white-space: normal; }
  .parameter-table div { grid-template-columns: 1fr; }
  .parameter-table strong { border-bottom: 0; }
  .article-detail { padding: 28px; }
  .article-entity-grid { grid-template-columns: 1fr; }
}