:root {
  --blue: #078fc8;
  --blue-dark: #083d5c;
  --navy: #062c43;
  --green: #20a487;
  --ink: #112f40;
  --muted: #607784;
  --line: #d9e7ed;
  --soft: #f2f8fa;
  --white: #ffffff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: white; font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif; }
a { color: inherit; text-decoration: none; }
img { display: block; }
button, a { -webkit-tap-highlight-color: transparent; }

.site-header { height: 88px; position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.94); border-bottom: 1px solid rgba(8,61,92,.09); backdrop-filter: blur(14px); }
.header-inner { max-width: 1240px; height: 100%; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; gap: 30px; }
.brand { display: flex; align-items: center; min-width: 315px; gap: 13px; }
.brand img { width: 58px; height: 58px; object-fit: cover; border-radius: 10px; }
.brand span { display: flex; flex-direction: column; gap: 5px; }
.brand strong { font-size: 17px; letter-spacing: .02em; color: var(--blue-dark); }
.brand small { font: 9px/1.1 Arial, sans-serif; letter-spacing: .09em; color: #66808d; }
nav { display: flex; justify-content: center; gap: 27px; flex: 1; }
nav a { position: relative; font-size: 14px; color: #334f5e; white-space: nowrap; transition: color .2s ease; }
nav a:hover { color: var(--blue); }
nav a::after { content: ""; position: absolute; left: 50%; right: 50%; bottom: -12px; height: 2px; background: var(--blue); transition: .2s ease; }
nav a:hover::after { left: 0; right: 0; }
.header-phone { display: flex; align-items: center; gap: 9px; min-width: 154px; }
.header-phone > span:last-child { display: flex; flex-direction: column; gap: 2px; }
.header-phone small { font-size: 10px; color: #738893; }
.header-phone strong { color: var(--blue-dark); font: 600 15px/1.2 Arial, sans-serif; letter-spacing: .03em; }
.phone-dot { color: var(--green); font-size: 12px; border: 1px solid #cbe7df; border-radius: 50%; width: 29px; height: 29px; display: grid; place-items: center; }

.hero { position: relative; min-height: 690px; overflow: hidden; background: linear-gradient(112deg, #f8fcfd 0%, #f0f8fb 52%, #e8f7fb 100%); }
.hero::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 74% 35%, rgba(7,151,207,.10), transparent 30%), radial-gradient(circle at 82% 76%, rgba(32,164,135,.09), transparent 25%); }
.hero-grid { position: absolute; width: 260px; height: 260px; opacity: .24; background-image: linear-gradient(rgba(6,78,111,.15) 1px, transparent 1px), linear-gradient(90deg, rgba(6,78,111,.15) 1px, transparent 1px); background-size: 26px 26px; mask-image: linear-gradient(135deg, black, transparent 70%); }
.hero-grid-one { left: 0; top: 0; }
.hero-grid-two { right: 0; bottom: 0; transform: rotate(180deg); }
.hero-inner { max-width: 1240px; min-height: 600px; padding: 72px 24px 56px; margin: 0 auto; display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; position: relative; z-index: 2; }
.hero-copy { padding-bottom: 24px; }
.eyebrow { margin: 0 0 20px; display: flex; align-items: center; gap: 10px; color: var(--blue); font: 600 12px/1.3 Arial, sans-serif; letter-spacing: .18em; text-transform: uppercase; }
.eyebrow span { display: block; width: 28px; height: 2px; background: currentColor; }
.hero h1 { margin: 0; color: var(--navy); font-size: clamp(42px, 5vw, 67px); line-height: 1.17; letter-spacing: -.055em; font-weight: 700; }
.hero h1 em { color: var(--blue); font-style: normal; }
.hero-lead { margin: 28px 0 0; font-size: 17px; line-height: 1.9; color: #516b78; }
.hero-actions { display: flex; gap: 13px; margin-top: 35px; }
.button { min-height: 50px; padding: 0 24px; display: inline-flex; justify-content: center; align-items: center; gap: 23px; font-size: 14px; font-weight: 600; border: 1px solid transparent; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--blue); color: white; box-shadow: 0 12px 25px rgba(7,143,200,.22); }
.button-primary:hover { background: #087caf; box-shadow: 0 15px 30px rgba(7,143,200,.3); }
.button-ghost { background: rgba(255,255,255,.65); border-color: #bcd5df; color: var(--blue-dark); }
.hero-trust { display: flex; gap: 26px; margin-top: 28px; color: #496673; font-size: 13px; }
.hero-trust span { display: flex; align-items: center; gap: 7px; }
.hero-trust i { width: 20px; height: 20px; display: grid; place-items: center; border-radius: 50%; color: var(--green); background: #e4f5f0; font-style: normal; font-size: 11px; }
.hero-visual { min-height: 470px; position: relative; display: grid; place-items: center; }
.visual-disc { position: relative; z-index: 3; width: min(64%, 330px); aspect-ratio: 1; border-radius: 50%; display: grid; place-items: center; background: rgba(255,255,255,.92); box-shadow: 0 28px 70px rgba(6,72,102,.15), inset 0 0 0 1px rgba(7,151,207,.08); }
.visual-disc::before { content: ""; position: absolute; inset: 18px; border: 1px solid #d7edf4; border-radius: 50%; }
.visual-disc img { width: 74%; height: 74%; object-fit: cover; border-radius: 18%; }
.science-orbit { position: absolute; border: 1px solid rgba(7,143,200,.22); border-radius: 50%; transform: rotate(-14deg); }
.orbit-one { width: 440px; height: 210px; }
.orbit-two { width: 230px; height: 490px; border-color: rgba(32,164,135,.17); transform: rotate(47deg); }
.floating-card { position: absolute; z-index: 5; min-width: 142px; padding: 16px 18px; background: rgba(255,255,255,.88); border: 1px solid rgba(255,255,255,.8); box-shadow: 0 18px 40px rgba(6,61,92,.12); backdrop-filter: blur(10px); }
.floating-card b { display: block; color: var(--blue); font: 700 26px/1 Arial, sans-serif; }
.floating-card span { display: block; margin-top: 7px; color: #5e7682; font-size: 12px; }
.card-a { left: 3%; top: 19%; }
.card-b { right: 0; bottom: 21%; }
.molecule { position: absolute; width: 14px; height: 14px; border-radius: 50%; background: #fff; border: 3px solid rgba(7,143,200,.32); box-shadow: 0 0 0 8px rgba(255,255,255,.3); }
.m1 { left: 17%; bottom: 17%; }.m2 { top: 11%; right: 25%; }.m3 { right: 11%; top: 36%; border-color: rgba(32,164,135,.35); }.m4 { left: 27%; top: 31%; }
.hero-footer { position: relative; z-index: 3; max-width: 1240px; margin: 0 auto; min-height: 90px; padding: 0 24px; display: flex; align-items: center; border-top: 1px solid rgba(8,61,92,.11); }
.hero-footer > span { color: #78909b; font-size: 12px; margin-right: 35px; }
.industry-list { display: flex; gap: 38px; flex: 1; }
.industry-list b { font-size: 14px; font-weight: 500; color: #365462; }
.hero-footer > a { color: var(--blue); font-size: 13px; font-weight: 600; display: flex; gap: 10px; }

.section { max-width: 1240px; margin: 0 auto; padding: 105px 24px; }
.section-heading h2 { margin: 0; color: var(--navy); font-size: clamp(32px, 4vw, 45px); line-height: 1.28; letter-spacing: -.04em; }
.split-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 45px; margin-bottom: 48px; }
.split-heading > p { max-width: 530px; margin: 0 0 4px; color: var(--muted); line-height: 1.9; font-size: 15px; }
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.product-card { min-height: 194px; position: relative; overflow: hidden; padding: 24px 22px; display: flex; flex-direction: column; justify-content: space-between; background: #f6fafb; border: 1px solid #e1edf1; transition: transform .25s ease, box-shadow .25s ease, border .25s ease; }
.product-card::before { content: ""; position: absolute; width: 120px; height: 120px; border-radius: 50%; right: -52px; top: -52px; background: var(--tone-soft); }
.product-card:hover { transform: translateY(-5px); border-color: var(--tone); box-shadow: 0 18px 38px rgba(6,61,92,.09); }
.tone-cyan { --tone: #08a5ce; --tone-soft: rgba(8,165,206,.10); }.tone-blue { --tone: #397bbd; --tone-soft: rgba(57,123,189,.10); }.tone-green { --tone: #20a487; --tone-soft: rgba(32,164,135,.10); }
.product-symbol { height: 40px; display: flex; align-items: center; gap: 9px; position: relative; z-index: 1; }
.product-symbol span { display: grid; place-items: center; width: 37px; height: 37px; color: var(--tone); background: white; border: 1px solid var(--tone); border-radius: 50%; font: 700 12px Arial; }
.product-symbol i { width: 19px; height: 2px; background: var(--tone); transform: rotate(-32deg); transform-origin: left; opacity: .42; }
.product-card h3 { margin: 17px 0 5px; font-size: 18px; color: #193d50; }
.product-card p { margin: 0; color: #68808c; font-size: 12px; }
.product-card small { display: block; margin-top: 7px; color: #8ba0a9; font: 10px Arial; }
.product-card > a { position: absolute; right: 21px; bottom: 20px; display: flex; gap: 8px; font-size: 12px; color: var(--tone); opacity: 0; transform: translateY(5px); transition: .2s ease; }
.product-card:hover > a { opacity: 1; transform: none; }
.product-note { margin-top: 28px; padding: 20px 24px; display: flex; align-items: center; gap: 27px; background: #eff7f9; color: #476573; font-size: 12px; }
.product-note span { color: #869aa3; margin-right: auto; }.product-note b { font-weight: 500; }

.applications { background: linear-gradient(120deg, #063b59 0%, #075375 60%, #086585 100%); color: white; position: relative; overflow: hidden; }
.applications::after { content: ""; position: absolute; width: 470px; height: 470px; right: -130px; top: -180px; border: 1px solid rgba(255,255,255,.09); border-radius: 50%; box-shadow: 0 0 0 75px rgba(255,255,255,.025), 0 0 0 150px rgba(255,255,255,.02); }
.applications-inner { max-width: 1240px; margin: 0 auto; padding: 94px 24px 105px; position: relative; z-index: 2; }
.light-heading { display: grid; grid-template-columns: 1fr 1fr; align-items: end; gap: 40px; }
.light-heading .eyebrow { grid-column: 1 / -1; margin-bottom: 0; color: #54d0d9; }
.light-heading h2 { color: white; }
.light-heading > p:last-child { margin: 0; max-width: 530px; line-height: 1.9; color: #bad2dc; font-size: 15px; }
.application-grid { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 52px; border: 1px solid rgba(255,255,255,.15); }
.application-grid article { min-height: 245px; padding: 30px 26px; border-right: 1px solid rgba(255,255,255,.15); background: rgba(255,255,255,.025); transition: .25s ease; }
.application-grid article:last-child { border: 0; }
.application-grid article:hover { background: rgba(255,255,255,.08); }
.application-grid span { color: #5ad5dc; font: 11px Arial; }
.application-grid h3 { margin: 62px 0 14px; font-size: 21px; }
.application-grid p { margin: 0; color: #b8d0da; font-size: 13px; line-height: 1.8; }

.service-section { display: grid; grid-template-columns: .8fr 1.2fr; gap: 100px; }
.service-intro > p { color: var(--muted); font-size: 15px; line-height: 1.95; margin: 31px 0; }
.text-link { display: inline-flex; gap: 13px; align-items: center; color: var(--blue); font-size: 13px; font-weight: 600; border-bottom: 1px solid #b7d8e6; padding-bottom: 8px; }
.service-list { border-top: 1px solid var(--line); }
.service-list article { min-height: 125px; display: grid; grid-template-columns: 70px 1fr; padding: 25px 0; border-bottom: 1px solid var(--line); }
.service-list article > span { color: var(--blue); font: 11px Arial; padding-top: 4px; }
.service-list h3 { margin: 0 0 8px; font-size: 19px; color: #244859; }
.service-list p { margin: 0; font-size: 13px; line-height: 1.75; color: #6a808b; }

.about { background: #f1f7f9; }
.about-inner { max-width: 1240px; margin: 0 auto; padding: 100px 24px; display: grid; grid-template-columns: .85fr 1.15fr; gap: 90px; align-items: center; }
.about-mark { min-height: 480px; display: flex; flex-direction: column; align-items: center; justify-content: center; position: relative; background: white; border: 1px solid #dfecef; }
.about-mark::before, .about-mark::after { content: ""; position: absolute; width: 70%; height: 70%; border: 1px solid #e2eff3; border-radius: 50%; }
.about-mark::after { width: 53%; height: 88%; transform: rotate(50deg); }
.about-mark img { position: relative; z-index: 2; width: 210px; height: 210px; object-fit: cover; border-radius: 18px; }
.about-mark p { position: relative; z-index: 2; margin: 24px 0 0; color: var(--blue-dark); font-size: 13px; letter-spacing: .14em; }
.about-copy > p:not(.eyebrow) { margin: 22px 0 0; color: #5d7480; font-size: 14px; line-height: 2; }
.about-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 40px; background: #d9e7ed; border: 1px solid #d9e7ed; }
.about-facts div { background: #f8fbfc; padding: 20px; }
.about-facts strong { display: block; color: var(--blue); font: 700 28px Arial; }
.about-facts span { display: block; margin-top: 6px; font-size: 11px; color: #6f858f; }

.contact { color: white; background: #0793c9; position: relative; overflow: hidden; }
.contact::before { content: ""; position: absolute; width: 560px; height: 560px; right: -120px; bottom: -360px; border: 1px solid rgba(255,255,255,.18); border-radius: 50%; box-shadow: 0 0 0 70px rgba(255,255,255,.03), 0 0 0 140px rgba(255,255,255,.025); }
.contact-inner { max-width: 1240px; margin: 0 auto; padding: 92px 24px; display: grid; grid-template-columns: 1fr 330px; gap: 100px; align-items: center; position: relative; z-index: 2; }
.contact .eyebrow { color: #bdefff; }
.contact h2 { margin: 0; font-size: clamp(34px, 4.5vw, 52px); letter-spacing: -.04em; }
.contact-copy > p:not(.eyebrow) { max-width: 680px; color: #d8f4fc; font-size: 15px; line-height: 1.9; }
.contact-actions { margin: 32px 0; display: flex; align-items: center; gap: 26px; }
.button-white { background: white; color: #087daa; }
.contact-email { border-bottom: 1px solid rgba(255,255,255,.5); padding-bottom: 4px; font: 14px Arial; }
.contact dl { margin: 34px 0 0; display: grid; gap: 13px; }
.contact dl div { display: grid; grid-template-columns: 80px 1fr; gap: 15px; font-size: 13px; line-height: 1.7; }
.contact dt { color: #bce8f5; }.contact dd { margin: 0; }
.qr-card { background: white; color: var(--ink); padding: 25px; display: flex; flex-direction: column; align-items: center; box-shadow: 0 20px 50px rgba(3,47,68,.2); }
.qr-card img { width: 100%; height: auto; }
.qr-card strong { margin-top: 17px; font-size: 16px; }.qr-card span { margin-top: 5px; color: #728791; font-size: 11px; }

footer { background: #062f46; color: white; }
.footer-inner { max-width: 1240px; min-height: 135px; padding: 25px 24px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 35px; }
.footer-brand { display: flex; align-items: center; gap: 15px; }
.footer-brand img { border-radius: 9px; }.footer-brand div { display: flex; flex-direction: column; gap: 6px; }
.footer-brand strong { font-size: 15px; }.footer-brand span { color: #9ebbc8; font-size: 11px; }
footer p { margin: 0; text-align: right; color: #9ebbc8; font-size: 11px; line-height: 1.9; }
footer p span { color: #668a9b; }
.mobile-contact-bar { display: none; }

@media (max-width: 1100px) {
  nav { display: none; }
  .header-phone { margin-left: auto; }
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .hero-inner { grid-template-columns: 1fr .85fr; }
  .service-section { gap: 60px; }
}

@media (max-width: 800px) {
  body { padding-bottom: 58px; }
  .site-header { height: 72px; }
  .header-inner { padding: 0 16px; }
  .brand { min-width: 0; }
  .brand img { width: 48px; height: 48px; }
  .brand strong { font-size: 14px; }
  .brand small { font-size: 7px; }
  .header-phone { display: none; }
  .hero { min-height: auto; }
  .hero-inner { min-height: 0; padding: 62px 20px 45px; grid-template-columns: 1fr; }
  .hero h1 { font-size: 43px; }
  .hero-lead { font-size: 15px; }
  .desktop-only { display: none; }
  .hero-visual { min-height: 400px; margin-top: 10px; }
  .visual-disc { width: 240px; }
  .orbit-one { width: 340px; }.orbit-two { width: 190px; height: 370px; }
  .card-a { left: 0; }.card-b { right: 0; }
  .hero-footer { display: block; padding: 22px 20px; }
  .hero-footer > span, .hero-footer > a { display: none; }
  .industry-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; }
  .section { padding: 76px 20px; }
  .split-heading { display: block; }
  .split-heading > p { margin-top: 22px; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .product-note { flex-wrap: wrap; gap: 13px 22px; }
  .product-note span { width: 100%; }
  .light-heading { grid-template-columns: 1fr; }
  .light-heading .eyebrow { grid-column: auto; }
  .application-grid { grid-template-columns: repeat(2, 1fr); }
  .application-grid article:nth-child(2) { border-right: 0; }
  .application-grid article:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.15); }
  .service-section { grid-template-columns: 1fr; gap: 50px; }
  .about-inner { grid-template-columns: 1fr; padding: 76px 20px; gap: 55px; }
  .about-mark { min-height: 390px; }
  .contact-inner { grid-template-columns: 1fr; padding: 76px 20px; gap: 55px; }
  .qr-card { max-width: 330px; }
  .mobile-contact-bar { display: grid; grid-template-columns: 1fr 1fr; position: fixed; z-index: 60; bottom: 0; left: 0; right: 0; height: 58px; background: white; box-shadow: 0 -7px 25px rgba(5,49,72,.13); }
  .mobile-contact-bar a { display: grid; place-items: center; font-weight: 600; font-size: 14px; color: var(--blue); }
  .mobile-contact-bar a:last-child { background: var(--blue); color: white; }
}

@media (max-width: 520px) {
  .brand span { max-width: 230px; }
  .brand strong { font-size: 13px; }
  .hero h1 { font-size: 36px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-trust { gap: 10px; justify-content: space-between; }
  .hero-trust span { font-size: 11px; }
  .hero-visual { min-height: 340px; }
  .visual-disc { width: 200px; }
  .orbit-one { width: 300px; }.orbit-two { height: 320px; }
  .floating-card { min-width: 115px; padding: 12px; }
  .floating-card b { font-size: 21px; }
  .floating-card span { font-size: 10px; }
  .product-grid { grid-template-columns: 1fr; }
  .product-card { min-height: 176px; }
  .application-grid { grid-template-columns: 1fr; }
  .application-grid article { min-height: 210px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.15); }
  .application-grid article h3 { margin-top: 42px; }
  .about-facts { grid-template-columns: 1fr; }
  .contact-actions { align-items: flex-start; flex-direction: column; }
  .contact dl div { grid-template-columns: 68px 1fr; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
  footer p { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}