:root {
  --blue: #1765b8;
  --blue-dark: #153b75;
  --ink: #202936;
  --muted: #667181;
  --line: #e4e9ef;
  --soft: #f5f7fa;
  --white: #fff;
  --shell: 1200px;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
  line-height: 1.65;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
.shell { width: min(var(--shell), calc(100% - 40px)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 1000; padding: 10px 16px; color: #fff; background: var(--blue-dark); }
.skip-link:focus { top: 12px; }

.site-header { position: relative; z-index: 20; background: #fff; border-bottom: 1px solid #edf0f4; }
.header-inner { min-height: 100px; display: grid; grid-template-columns: 150px 1fr auto; align-items: center; gap: 24px; }
.brand img { width: 120px; height: 50px; object-fit: contain; object-position: left center; }
.desktop-nav { display: flex; justify-content: center; align-items: center; }
.desktop-nav a { position: relative; padding: 36px 20px 34px; color: #333; white-space: nowrap; }
.desktop-nav a + a::before { content: ""; position: absolute; left: 0; top: 42px; width: 1px; height: 16px; background: #cfd4db; }
.desktop-nav a:hover, .desktop-nav a:focus-visible, .desktop-nav .active { color: var(--blue); }
.desktop-nav .active::after { content: ""; position: absolute; left: 20px; right: 20px; bottom: 0; height: 3px; background: var(--blue); }
.hotline { display: flex; align-items: center; gap: 10px; color: #374151; }
.hotline > span:first-child { display: grid; place-items: center; width: 40px; height: 40px; border: 2px solid #606873; border-radius: 50%; font-size: 24px; transform: rotate(-28deg); }
.hotline small, .hotline strong { display: block; }
.hotline small { font-size: 14px; letter-spacing: .06em; }
.hotline strong { color: var(--blue-dark); font-family: Georgia, serif; font-size: 18px; line-height: 1.2; }
.mobile-nav { display: none; position: relative; justify-self: end; }
.mobile-nav summary { cursor: pointer; list-style: none; padding: 9px 14px; color: #fff; background: var(--blue); border-radius: 4px; }
.mobile-nav summary::-webkit-details-marker { display: none; }
.mobile-nav nav { position: absolute; right: 0; top: 48px; width: 210px; padding: 8px; background: #fff; border: 1px solid var(--line); box-shadow: 0 16px 35px rgb(25 55 90 / 15%); }
.mobile-nav nav a { display: block; padding: 10px 12px; border-radius: 3px; }
.mobile-nav nav a:hover, .mobile-nav nav a:focus-visible { color: #fff; background: var(--blue); }

.hero img { width: 100%; height: auto; }
.section { padding: 66px 0; }
.section-title { margin-bottom: 42px; text-align: center; }
.section-title h1, .section-title h2 { margin: 0; font-size: clamp(26px, 3vw, 38px); font-weight: 500; letter-spacing: .02em; }
.section-title span { display: block; width: 100px; height: 3px; margin: 12px auto 0; background: var(--blue); }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.service-card { min-height: 190px; display: grid; grid-template-columns: 140px 1fr; overflow: hidden; background: var(--soft); border: 1px solid #eef1f4; }
.service-card img { width: 140px; height: 190px; object-fit: cover; }
.service-card div { padding: 22px 18px; }
.service-card h2 { margin: 0 0 10px; font-size: 22px; font-weight: 600; }
.service-card p { margin: 0; color: var(--muted); font-size: 14px; }
.text-link { display: table; margin: 34px auto 0; padding: 10px 22px; color: #fff; background: var(--blue); border-radius: 2px; }
.text-link:hover, .text-link:focus-visible { background: var(--blue-dark); }

.button { display: inline-block; padding: 11px 24px; color: #fff; background: var(--blue); border-radius: 2px; font-weight: 600; }
.button:hover, .button:focus-visible { background: var(--blue-dark); }
.button-light { color: var(--blue-dark); background: #fff; }
.button-light:hover, .button-light:focus-visible { color: #fff; background: #102e5b; }
.eyebrow { margin: 0 0 8px; color: var(--blue); font-size: 12px; font-weight: 700; letter-spacing: .18em; }
.section-intro { max-width: 760px; margin: 14px auto 0; color: var(--muted); font-size: 15px; }
.inner-hero { overflow: hidden; background: #dce8f5; }
.inner-hero img { min-height: 250px; object-fit: cover; }

.expert-band { color: #fff; background: linear-gradient(110deg, #1468bd, #123e7b); }
.expert-inner { min-height: 150px; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.expert-inner strong, .expert-inner span { display: block; }
.expert-inner strong { font-size: clamp(24px, 3vw, 36px); font-weight: 500; }
.expert-inner span { margin-top: 6px; color: #dbeaf9; }
.split-panel { display: grid; grid-template-columns: minmax(320px, 44%) 1fr; align-items: center; gap: 70px; }
.split-panel > img { width: 100%; min-height: 320px; object-fit: cover; box-shadow: 22px 22px 0 #edf3f9; }
.split-panel h2 { margin: 0 0 18px; font-size: clamp(30px, 4vw, 48px); font-weight: 500; }
.split-panel p:not(.eyebrow) { max-width: 620px; margin: 0 0 26px; color: var(--muted); font-size: 17px; }
.why-section { background: var(--soft); }
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.why-grid article { position: relative; min-height: 210px; padding: 34px 30px; background: #fff; border-top: 3px solid transparent; box-shadow: 0 8px 28px rgb(32 52 80 / 6%); }
.why-grid article:hover { border-color: var(--blue); }
.why-grid b { position: absolute; right: 24px; top: 12px; color: #edf2f8; font: 700 48px/1 Georgia, serif; }
.why-grid h3 { position: relative; margin: 0 0 10px; font-size: 21px; }
.why-grid p { position: relative; margin: 0; color: var(--muted); }
.process-list { counter-reset: process; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin: 0; padding: 0; list-style: none; }
.process-list li { position: relative; min-height: 220px; padding: 32px 28px; color: #fff; background: var(--blue); }
.process-list li:nth-child(even) { background: var(--blue-dark); }
.process-list li:not(:last-child)::after { content: ""; position: absolute; top: 50%; right: -9px; z-index: 2; width: 18px; height: 18px; border-top: 2px solid #fff; border-right: 2px solid #fff; transform: translateY(-50%) rotate(45deg); }
.process-list b { font: 700 48px/1 Georgia, serif; opacity: .35; }
.process-list h3 { margin: 18px 0 8px; font-size: 21px; }
.process-list p { margin: 0; color: #dfeaf8; font-size: 14px; }

.anchor-nav { display: grid; grid-template-columns: repeat(5, 1fr); margin-bottom: 36px; border: 1px solid var(--line); }
.anchor-nav a { padding: 14px 10px; text-align: center; background: #fff; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); font-size: 14px; }
.anchor-nav a:nth-child(5n) { border-right: 0; }
.anchor-nav a:hover, .anchor-nav a:focus-visible { color: #fff; background: var(--blue); }
.detail-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.detail-card { position: relative; scroll-margin-top: 18px; padding: 34px; background: #fff; border: 1px solid var(--line); box-shadow: 0 8px 30px rgb(23 55 88 / 5%); }
.detail-card .service-symbol { float: right; display: grid; place-items: center; width: 56px; height: 56px; color: #fff; background: var(--blue); border-radius: 50%; font-size: 22px; }
.detail-card h2 { margin: 0 0 20px; font-size: 26px; }
.detail-card h3 { margin: 18px 0 7px; color: var(--blue-dark); font-size: 15px; }
.detail-card ul { display: flex; flex-wrap: wrap; gap: 5px 18px; margin: 0; padding: 0; list-style: none; color: var(--muted); font-size: 14px; }
.detail-card li::before { content: "·"; margin-right: 5px; color: var(--blue); font-weight: 700; }
.detail-card p { margin: 0; color: var(--muted); font-size: 14px; }
.detail-card > a { display: inline-block; margin-top: 18px; color: var(--blue); font-weight: 600; }
.technical-section { background: var(--soft); }
.image-card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.image-card-grid article { overflow: hidden; background: #fff; box-shadow: 0 8px 24px rgb(24 55 88 / 8%); }
.image-card-grid img { width: 100%; aspect-ratio: 1.72 / 1; object-fit: cover; }
.image-card-grid div { padding: 22px; }
.image-card-grid h3 { margin: 0 0 8px; font-size: 20px; }
.image-card-grid p { margin: 0; color: var(--muted); font-size: 14px; }
.advantage-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.advantage-grid article { padding: 34px; text-align: center; border: 1px solid var(--line); }
.advantage-grid b { display: grid; place-items: center; width: 64px; height: 64px; margin: 0 auto 18px; color: #fff; background: var(--blue); border-radius: 50%; font-size: 24px; }
.advantage-grid h3 { margin: 0 0 10px; }
.advantage-grid p { margin: 0; color: var(--muted); }

.choose-section { background: #fff; }
.choose-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.choose-grid article { min-height: 310px; padding: 38px 26px; text-align: center; color: #fff; background: linear-gradient(145deg, #1a70c3, #123f7d); }
.choose-grid article:nth-child(even) { color: var(--ink); background: #edf3f9; }
.choose-grid b { display: grid; place-items: center; width: 68px; height: 68px; margin: 0 auto 24px; border: 1px solid currentColor; border-radius: 50%; font-size: 26px; }
.choose-grid h2 { margin: 0 0 15px; font-size: 23px; }
.choose-grid p { margin: 0; opacity: .88; }
.easy-process { background: var(--soft); }
.photo-process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 0; padding: 0; list-style: none; }
.photo-process li { overflow: hidden; background: #fff; box-shadow: 0 8px 24px rgb(24 55 88 / 7%); }
.photo-process img { width: 100%; aspect-ratio: 2 / 1; object-fit: cover; }
.photo-process div { position: relative; padding: 26px 22px 24px; }
.photo-process b { position: absolute; right: 18px; top: 16px; color: #dbe7f3; font: 700 38px/1 Georgia, serif; }
.photo-process h3 { position: relative; margin: 0 0 8px; }
.photo-process p { position: relative; margin: 0; color: var(--muted); font-size: 14px; }
.recommend-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.recommend-grid a { overflow: hidden; border: 1px solid var(--line); background: #fff; }
.recommend-grid img { width: 100%; aspect-ratio: 1 / 1.08; object-fit: cover; }
.recommend-grid div { padding: 20px; }
.recommend-grid h3 { margin: 0 0 6px; }
.recommend-grid p { margin: 0; color: var(--muted); font-size: 14px; }
.recommend-grid a:hover h3, .recommend-grid a:focus-visible h3 { color: var(--blue); }

.about-capabilities { color: #fff; background: #123e7b; }
.capability-inner { display: grid; grid-template-columns: 1.4fr .8fr .8fr 1.4fr; align-items: center; gap: 22px; min-height: 260px; }
.capability-inner div:first-child { text-align: right; }
.capability-inner p { margin: 0 0 6px; color: #bcd3ec; }
.capability-inner h1, .capability-inner h2 { margin: 0; font-size: 24px; font-weight: 500; }
.capability-inner ul { margin: 0; padding: 22px; list-style: none; border-left: 1px solid rgb(255 255 255 / 25%); border-right: 1px solid rgb(255 255 255 / 25%); }
.capability-inner li { padding: 3px 0; }
.capability-inner li::before { content: "●"; margin-right: 8px; color: #59a6ec; font-size: 9px; }
.profile-layout { display: grid; grid-template-columns: 42% 1fr; align-items: start; gap: 48px; }
.profile-layout > img { width: 100%; aspect-ratio: 1.75 / 1; object-fit: cover; box-shadow: 18px 18px 0 #edf3f9; }
.profile-layout p { margin: 0 0 14px; color: #4f5d6c; text-align: justify; }
.labs-section { background: var(--soft); }
.lab-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.lab-grid figure { position: relative; margin: 0; overflow: hidden; background: #fff; }
.lab-grid img { width: 100%; aspect-ratio: 1.55 / 1; object-fit: cover; }
.lab-grid figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 10px 14px; color: #fff; background: linear-gradient(transparent, rgb(5 28 56 / 85%)); text-align: right; }
.quality-band { padding: 70px 0; color: #fff; background: linear-gradient(110deg, #1b70c0, #103c77); text-align: center; }
.quality-band .eyebrow { color: #b8d9f8; }
.quality-band h2 { margin: 0; font-size: clamp(34px, 5vw, 58px); font-weight: 500; letter-spacing: .16em; }
.quality-band p:last-child { max-width: 780px; margin: 18px auto 0; color: #d7e7f7; }
.culture-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.culture-grid article { position: relative; min-height: 284px; overflow: hidden; }
.culture-grid img { width: 100%; height: 100%; object-fit: cover; }
.culture-grid article::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgb(7 31 62 / 78%), transparent 72%); }
.culture-grid div { position: absolute; left: 34px; right: 34px; top: 50%; z-index: 2; color: #fff; transform: translateY(-50%); }
.culture-grid span { font-size: 14px; letter-spacing: .15em; }
.culture-grid h3 { max-width: 390px; margin: 8px 0; font-size: 26px; }
.culture-grid p { margin: 0; }
.values { display: flex; align-items: center; gap: 28px; margin-top: 24px; padding: 26px 34px; background: var(--soft); }
.values span { color: var(--blue); font-size: 22px; font-weight: 700; white-space: nowrap; }
.values p { margin: 0; color: var(--muted); }

.contact-layout { display: grid; grid-template-columns: 1.05fr .95fr; min-height: 480px; border: 1px solid var(--line); box-shadow: 0 14px 40px rgb(24 55 88 / 8%); }
.contact-card { padding: clamp(34px, 5vw, 64px); }
.contact-card h2 { margin: 0 0 30px; font-size: clamp(23px, 3vw, 32px); }
.contact-card dl { margin: 0 0 30px; }
.contact-card dl div { display: grid; grid-template-columns: 72px 1fr; padding: 13px 0; border-bottom: 1px solid var(--line); }
.contact-card dt { color: var(--muted); }
.contact-card dd { margin: 0; }
.contact-card dd a { color: var(--blue); }
.location-panel { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 50px; color: #fff; background: radial-gradient(circle at 50% 40%, #3b8dd2, #123c77 75%); text-align: center; }
.location-panel > span { display: grid; place-items: center; width: 96px; height: 96px; border: 2px solid rgb(255 255 255 / 65%); border-radius: 50%; font-size: 58px; }
.location-panel p { margin: 24px 0 2px; color: #c9def3; }
.location-panel strong { font-size: 22px; }
.location-panel small { margin-top: 16px; color: #c9def3; }

.site-footer { color: #d7dde6; background: #152033; }
.footer-contact { color: #fff; background: #1a65ad; }
.footer-contact .shell { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.footer-contact a { font-size: 20px; font-weight: 700; }
.footer-main { min-height: 210px; display: grid; grid-template-columns: 150px 1fr 1.3fr; align-items: center; gap: 40px; }
.footer-main img { padding: 8px; background: #fff; }
.footer-main nav { display: flex; flex-wrap: wrap; gap: 12px 24px; }
.footer-main nav a:hover, .footer-main nav a:focus-visible { color: #fff; }
.footer-main p { margin: 0; text-align: right; }
.footer-main small { color: #8996a8; }
.not-found { min-height: 100vh; display: grid; place-content: center; justify-items: center; gap: 10px; padding: 28px; text-align: center; background: var(--soft); }
.not-found img { margin-bottom: 20px; }
.not-found h1, .not-found p { margin: 0; }
.not-found .button { margin-top: 18px; }

@media (max-width: 1040px) {
  .header-inner { grid-template-columns: 130px 1fr auto; }
  .desktop-nav a { padding-inline: 10px; font-size: 14px; }
  .desktop-nav a + a::before { display: none; }
  .hotline small { display: none; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .anchor-nav { grid-template-columns: repeat(4, 1fr); }
  .anchor-nav a:nth-child(5n) { border-right: 1px solid var(--line); }
  .anchor-nav a:nth-child(4n) { border-right: 0; }
  .choose-grid, .photo-process, .recommend-grid { grid-template-columns: repeat(2, 1fr); }
  .capability-inner { grid-template-columns: 1fr 1fr; padding-block: 34px; }
  .capability-inner div:first-child { text-align: left; }
  .footer-main { grid-template-columns: 120px 1fr; }
  .footer-main p { grid-column: 1 / -1; padding-bottom: 34px; text-align: left; }
}

@media (max-width: 760px) {
  .shell { width: min(100% - 28px, var(--shell)); }
  .header-inner { min-height: 72px; grid-template-columns: 1fr auto; }
  .brand img { width: 102px; height: 44px; }
  .desktop-nav, .hotline { display: none; }
  .mobile-nav { display: block; }
  .home-hero { min-height: 0; overflow: hidden; }
  .home-hero img { width: 100%; max-width: 100%; height: auto; object-fit: contain; }
  .section { padding: 48px 0; }
  .section-title { margin-bottom: 30px; }
  .service-grid { grid-template-columns: 1fr; gap: 16px; }
  .service-card { grid-template-columns: 110px 1fr; min-height: 150px; }
  .service-card img { width: 110px; height: 150px; }
  .service-card div { padding: 16px; }
  .service-card h2 { font-size: 19px; }
  .inner-hero img { width: 100%; max-width: 100%; height: auto; min-height: 0; object-fit: contain; }
  .expert-inner { min-height: 180px; flex-direction: column; justify-content: center; align-items: flex-start; }
  .split-panel, .profile-layout, .contact-layout { grid-template-columns: 1fr; }
  .split-panel { gap: 48px; }
  .split-panel > img { min-height: 220px; }
  .why-grid, .detail-grid, .image-card-grid, .advantage-grid, .lab-grid, .culture-grid { grid-template-columns: 1fr; }
  .process-list { grid-template-columns: 1fr; }
  .process-list li { min-height: 170px; }
  .process-list li:not(:last-child)::after { display: none; }
  .anchor-nav { grid-template-columns: repeat(2, 1fr); }
  .anchor-nav a:nth-child(4n) { border-right: 1px solid var(--line); }
  .anchor-nav a:nth-child(2n) { border-right: 0; }
  .detail-card { padding: 26px; }
  .choose-grid, .photo-process, .recommend-grid { grid-template-columns: 1fr; }
  .capability-inner { grid-template-columns: 1fr; }
  .capability-inner ul { border: 0; border-top: 1px solid rgb(255 255 255 / 25%); }
  .profile-layout { gap: 36px; }
  .culture-grid article { min-height: 250px; }
  .values { align-items: flex-start; flex-direction: column; gap: 8px; }
  .contact-layout { min-height: 0; }
  .location-panel { min-height: 360px; padding: 36px 24px; }
  .footer-contact .shell { padding-block: 18px; align-items: flex-start; flex-direction: column; gap: 6px; }
  .footer-main { min-height: 0; grid-template-columns: 1fr; padding-block: 38px; }
  .footer-main p { grid-column: auto; padding: 0; }
}