:root { --accent:#087d87; --bg:#f3f9f8; --ink:#153c42; --paper:#ffffff; --muted:#637c80; --line:#d3e6e5; }

* { box-sizing: border-box; }
:root { --font: "Inter","Microsoft YaHei","PingFang SC",sans-serif; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font); line-height: 1.75; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button,input,textarea,select { font: inherit; }
button,a,input,textarea,select { -webkit-tap-highlight-color: transparent; }
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
img { display: block; width: 100%; object-fit: cover; }
h1,h2,h3,p { margin: 0; }
h1,h2,h3 { line-height: 1.22; }
.container { width: min(1280px, calc(100% - 96px)); margin-inline: auto; }
.site-header { position: relative; z-index: 20; border-bottom: 1px solid var(--line); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; min-height: 96px; gap: 24px; }
.brand { display: flex; gap: 12px; align-items: center; flex-shrink: 0; }
.brand-mark { font-size: 24px; font-weight: 850; color: var(--accent); width: 40px; height: 40px; border: 1px solid var(--accent); display: grid; place-items: center; line-height: 1; }
.brand strong { display: block; font-size: 19px; letter-spacing: .06em; line-height: 1.4; }
.brand small { display: block; color: var(--muted); font-size: 9px; letter-spacing: .19em; line-height: 1.8; }
.nav-links { display: flex; gap: 30px; align-items: center; font-size: 13px; }
.nav-links a { padding-block: 12px; color: var(--muted); }
.nav-links a:hover,.nav-links a[aria-current="page"] { color: var(--ink); }
.nav-links a[aria-current="page"] { border-bottom: 2px solid var(--accent); }
.nav-links .nav-contact { color: var(--ink); border: 1px solid var(--line); padding: 11px 20px; }
.menu-toggle { display: none; border: 1px solid var(--line); color: var(--ink); background: var(--paper); padding: 8px 12px; cursor: pointer; }
.eyebrow { display: block; color: var(--accent); font-size: 11px; font-weight: 650; letter-spacing: .18em; margin-bottom: 22px; text-transform: uppercase; }
.hero h1 { font-size: clamp(40px, 4.8vw, 74px); letter-spacing: -.045em; font-weight: 600; white-space: pre-line; }
.hero p { font-size: 15px; max-width: 490px; color: var(--muted); margin-top: 26px; line-height: 2; }
.hero-actions { display: flex; align-items: center; gap: 24px; margin-top: 36px; flex-wrap: wrap; }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 32px; padding: 15px 24px; font-size: 13px; border: 1px solid var(--accent); background: var(--accent); color: var(--button-ink, #fff); cursor: pointer; }
.button:hover { filter: brightness(.92); }
.text-link { font-size: 13px; border-bottom: 1px solid var(--muted); padding-bottom: 4px; }
.hero-image { height: 100%; min-height: 400px; }
.hero-split { display: grid; grid-template-columns: 1fr 1fr; align-items: stretch; gap: 66px; padding-block: 66px 72px; }
.hero-split .hero-copy { align-self: center; }
.hero-note { font-size: 11px; color: var(--muted); border-top: 1px solid var(--line); padding-top: 18px; margin-top: 38px; letter-spacing: .05em; }
.service-strip { display: flex; justify-content: space-between; gap: 22px; padding-block: 24px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); font-size: 12px; color: var(--muted); }
.service-strip span { display: flex; gap: 12px; align-items: center; }
.service-strip b { font-size: 11px; color: var(--accent); }
.section { padding-block: 100px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 42px; }
.section-heading h2 { font-size: clamp(28px,3.2vw,44px); font-weight: 550; letter-spacing: -.03em; }
.section-heading p { max-width: 360px; font-size: 13px; color: var(--muted); }
.service-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.service-card { background: var(--paper); padding: 32px; border: 1px solid var(--line); display: flex; flex-direction: column; }
.service-card .card-code { color: var(--accent); font-size: 11px; letter-spacing: .12em; margin-bottom: 55px; }
.service-card h3 { font-size: 23px; font-weight: 550; }
.service-card p { font-size: 13px; color: var(--muted); margin-block: 20px 28px; }
.service-card .text-link { align-self: start; margin-top: auto; }
.editorial { display: grid; grid-template-columns: 1.1fr 1fr; gap: 80px; align-items: center; }
.editorial img { aspect-ratio: 1.18; }
.editorial h2 { font-size: clamp(30px,3vw,46px); font-weight: 500; margin-bottom: 28px; }
.editorial p { font-size: 14px; color: var(--muted); margin-bottom: 18px; }
.values { display: grid; grid-template-columns: repeat(3,1fr); margin-block: 30px; border-top: 1px solid var(--line); padding-top: 20px; }
.values b { display: block; font-size: 17px; font-weight: 500; }
.values small { color: var(--muted); font-size: 10px; }
.project-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 28px; }
.project-card { display: block; border-bottom: 1px solid var(--line); padding-bottom: 24px; }
.project-card img { aspect-ratio: 1.36; margin-bottom: 24px; transition: filter .25s; }
.project-card:hover img { filter: brightness(.85); }
.project-card small { color: var(--accent); font-size: 10px; letter-spacing: .1em; }
.project-card h3 { font-size: 20px; font-weight: 500; margin-top: 12px; }
.project-card p { color: var(--muted); font-size: 12px; margin-top: 12px; }
.project-card:nth-child(2) img { object-position: 20% center; }
.project-card:nth-child(3) img { object-position: 80% center; }
.cta { padding: 52px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.cta h2 { font-size: clamp(27px,3.5vw,46px); font-weight: 500; }
.cta p { font-size: 13px; color: var(--muted); margin-top: 15px; }
footer { padding: 50px 0 22px; }
.footer-main { display: flex; align-items: start; justify-content: space-between; gap: 32px; margin-bottom: 50px; }
.footer-main p { max-width: 330px; font-size: 12px; color: var(--muted); margin-top: 15px; }
.footer-nav { display: flex; gap: 22px; flex-wrap: wrap; font-size: 12px; color: var(--muted); }
.footer-bottom { border-top: 1px solid var(--line); padding-top: 20px; display: flex; gap: 20px; justify-content: space-between; color: var(--muted); font-size: 10px; }
.page-intro { padding-block: 78px 60px; max-width: 850px; }
.page-intro h1 { font-size: clamp(36px,5vw,64px); font-weight: 500; letter-spacing: -.04em; }
.page-intro p { color: var(--muted); font-size: 15px; margin-top: 24px; }
.page-banner { height: 400px; margin-bottom: 70px; }
.detail-row { display: grid; grid-template-columns: 110px 1fr 1fr; gap: 40px; padding-block: 48px; border-top: 1px solid var(--line); scroll-margin-top: 30px; }
.detail-row .number { color: var(--accent); font-size: 48px; line-height: 1; font-weight: 300; }
.detail-row h2 { font-size: 28px; font-weight: 500; margin-bottom: 18px; }
.detail-row p,.detail-row li { font-size: 14px; color: var(--muted); }
.detail-row ul { padding-left: 18px; margin-top: 0; }
.detail-row li { margin-bottom: 10px; }
.project-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; padding-block: 60px; border-top: 1px solid var(--line); }
.project-detail img { aspect-ratio: 1.4; }
.project-detail h2 { font-size: 29px; font-weight: 500; margin-bottom: 20px; }
.project-detail p { color: var(--muted); font-size: 14px; margin-block: 15px; }
.project-label { display: inline-block; font-size: 11px; border: 1px solid var(--line); padding: 5px 12px; margin-bottom: 20px; color: var(--muted); }
.filters { display: flex; gap: 10px; margin-bottom: 30px; flex-wrap: wrap; }
.filter { background: transparent; color: var(--ink); border: 1px solid var(--line); padding: 10px 18px; cursor: pointer; }
.filter[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--button-ink,#fff); }
[hidden] { display: none !important; }
.faq { max-width: 920px; margin-inline: auto; }
.faq details { border-top: 1px solid var(--line); padding-block: 23px; }
.faq summary { cursor: pointer; font-size: 16px; }
.faq details p { color: var(--muted); font-size: 13px; margin-top: 20px; padding-right: 30px; }
.contact-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 95px; padding-bottom: 90px; }
.contact-info h2 { font-size: 28px; font-weight: 500; margin-bottom: 22px; }
.contact-info p { color: var(--muted); font-size: 13px; margin-bottom: 28px; }
.contact-item { padding-block: 22px; border-top: 1px solid var(--line); }
.contact-item span { display: block; color: var(--muted); font-size: 11px; margin-bottom: 5px; }
.contact-item strong { font-size: 15px; font-weight: 500; }
.contact-form { padding: 36px; background: var(--paper); border: 1px solid var(--line); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.contact-form label { display: block; font-size: 12px; margin-bottom: 22px; }
.contact-form input,.contact-form textarea,.contact-form select { display: block; width: 100%; border: 1px solid var(--line); background: var(--bg); color: var(--ink); padding: 12px 14px; border-radius: 0; margin-top: 8px; }
.contact-form textarea { resize: vertical; min-height: 150px; }
.form-note { color: var(--muted); font-size: 11px; margin-bottom: 22px; }
.form-result { color: var(--accent); font-size: 12px; margin-top: 18px; min-height: 22px; }
.skip-link { position: absolute; top: -100px; left: 20px; padding: 12px; background: var(--paper); z-index: 99; }
.skip-link:focus { top: 10px; }
.back-top { font-size: 11px; border-bottom: 1px solid var(--muted); }
/* 各行业首页以独立构图呈现。 */
.tech { --button-ink:#131521; }
.tech .hero { padding-block: 64px 0; }
.tech .hero-top { display: grid; grid-template-columns: 1.2fr .8fr; gap: 70px; align-items: end; margin-bottom: 54px; }
.tech .hero h1 { font-size: clamp(42px,5.1vw,80px); }
.tech .hero-photo { height: 390px; position: relative; }
.tech .hero-photo img { height: 100%; filter: brightness(.8); }
.tech .photo-caption { position: absolute; bottom: 28px; left: 28px; font-size: 12px; background: #121521; padding: 12px 18px; border-left: 3px solid var(--accent); color:#fff; }
.tech .service-card { border-radius: 6px; }
.industry .hero-split { gap: 36px; }
.industry .hero-image { height: 570px; }
.industry .hero h1 { font-weight: 750; }
.industry .service-strip { background: #232725; color: #eee; padding-inline: 28px; }
.industry .service-card { border-top: 3px solid var(--accent); }
.architecture { --font:"Baskervville","STSong","SimSun",serif; }
.architecture .hero { padding-block: 64px; }
.architecture .arch-top { display: flex; justify-content: space-between; gap: 40px; margin-bottom: 40px; }
.architecture .hero h1 { font-weight: 400; font-size: clamp(44px,5.9vw,90px); }
.architecture .hero .arch-aside { max-width: 270px; align-self: end; }
.architecture .hero .arch-aside p { font-size: 13px; }
.architecture .arch-photo { height: 490px; }
.architecture .button { background: transparent; color: var(--ink); }
.architecture .service-card { background: transparent; border: 0; border-top: 1px solid var(--line); padding-inline: 0; }
.logistics .site-header { background: #10283f; color: #fff; --muted:#c0d0df; --line:#385066; }
.logistics .brand-mark { color:#fff; border-color:#5c84ab; }
.logistics .hero { position: relative; color: #fff; background:#10283f; }
.logistics .hero .cover { height: 650px; opacity: .55; object-position: center; }
.logistics .hero .cover-copy { position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: center; align-items: start; padding-block: 50px; }
.logistics .hero p { color:#e4edf6; max-width: 460px; }
.logistics .hero .eyebrow { color:#c4ddfb; }
.logistics .service-strip { margin-top: 26px; }
.consulting { --font:"Baskervville","STSong","SimSun",serif; }
.consulting .hero { padding-top: 65px; text-align: center; }
.consulting .hero h1 { font-weight: 400; }
.consulting .hero p { margin-inline: auto; max-width: 570px; }
.consulting .hero-actions { justify-content: center; }
.consulting .consult-photo { margin-top: 52px; height: 340px; }
.consulting .service-card { background:transparent; border:0; border-right: 1px solid var(--line); }
.consulting .service-card:last-child { border:0; }
.energy .hero { padding-block: 64px 0; }
.energy .energy-top { display:flex; justify-content:space-between; align-items:end; gap:50px; }
.energy .hero p { max-width: 380px; margin-top:0; }
.energy .energy-photo { height: 460px; border-radius: 120px 12px 12px 12px; margin-top:45px; }
.energy .button { border-radius: 30px; }
.energy .brand-mark { border-radius:50%; }
.energy .service-card { border-radius: 18px; }
.biotech .hero-split { gap: 70px; padding-block: 66px; }
.biotech .hero-image { height: 550px; border-radius: 48% 48% 8px 8px; }
.biotech .eyebrow { font-family: "Courier New",monospace; }
.biotech .service-card { border:0; border-left:2px solid var(--line); }
.creative .hero { padding-block: 54px 60px; }
.creative .creative-top { display:grid; grid-template-columns:1.5fr .7fr; gap:45px; align-items:end; }
.creative .hero h1 { font-weight:850; font-size:clamp(48px,6.6vw,100px); color:var(--accent); line-height:1.12; }
.creative .creative-bottom { margin-top:45px; display:grid;grid-template-columns:.55fr 1.45fr; gap:45px; align-items:end; }
.creative .creative-photo { height:380px; }
.creative .creative-statement { font-size:clamp(35px,4.8vw,70px); font-weight:800; color:var(--accent); line-height:1.05; letter-spacing:-.06em; margin-bottom:28px; }
.creative .service-card { border:0; border-top:2px solid var(--ink); background:transparent; padding-inline:0; }
.agriculture { --font:"STIX Two Text","STSong","SimSun",serif; }
.agriculture .hero-split { padding-block:65px; }
.agriculture .hero-image { height: 580px; border-radius: 46% 46% 0 0; }
.agriculture .hero h1 { font-weight:400; }
.agriculture .brand-mark { border-radius:50%; }
.agriculture .button { background:transparent; color:var(--ink); border-radius:30px; }
.agriculture .service-card { background:transparent; border-width:1px 0 0; padding-inline:0; }
.property { --button-ink:#122231; }
.property .hero { position:relative; }
.property .hero .cover { height: 640px; opacity:.38; object-position:center 45%; }
.property .hero .cover-copy { position:absolute; inset:0; display:flex; flex-direction:column; justify-content:center; align-items:start; }
.property .hero h1 { font-size:clamp(42px,5.1vw,78px); font-weight:400; }
.property .hero p { color:#d0d6dd; }
.property .service-card { border:0; border-top:1px solid var(--accent); background:transparent; padding-inline:0; }
@media(max-width:1000px) {
  .container { width:calc(100% - 48px); }
  .nav-links { gap:18px; }
  .hero-split { gap:35px; }
  .hero h1 { font-size:48px; }
  .contact-grid { gap:40px; }
  .editorial { gap:40px; }
  .service-card { padding:24px; }
}
@media(max-width:760px) {
  .container { width:calc(100% - 40px); }
  .nav-wrap { min-height:76px; }
  .menu-toggle { display:block; }
  .nav-links { display:none; position:absolute; top:76px; left:0; right:0; background:var(--paper); border-bottom:1px solid var(--line); color:var(--ink); padding:20px; flex-direction:column; align-items:stretch; gap:4px; }
  .nav-links.open { display:flex; }
  .nav-links a { padding:12px; color:var(--ink); }
  .hero h1,.tech .hero h1,.architecture .hero h1,.property .hero h1 { font-size:clamp(36px,8.9vw,58px); }
  .hero-split,.tech .hero-top,.creative .creative-top,.creative .creative-bottom,.editorial,.contact-grid,.project-detail { grid-template-columns:1fr; gap:32px; }
  .hero-split { padding-block:40px; }
  .hero-image,.industry .hero-image,.biotech .hero-image,.agriculture .hero-image { height:380px; min-height:0; }
  .hero-actions { gap:20px; margin-top:28px; }
  .section { padding-block:62px; }
  .section-heading { display:block; }
  .section-heading p { margin-top:20px; }
  .service-grid,.project-grid { grid-template-columns:1fr; }
  .service-card .card-code { margin-bottom:28px; }
  .service-card { min-height:240px; }
  .service-strip { display:flex; flex-wrap:wrap; justify-content:start; gap:14px 28px; font-size:11px; padding-block:20px; }
  .cta-inner,.footer-main { flex-direction:column; align-items:start; }
  .cta { padding-block:36px; }
  .footer-bottom { display:block; }
  .footer-bottom span { display:block; margin-bottom:10px; }
  .page-intro { padding-block:48px 36px; }
  .page-banner { height:280px; margin-bottom:42px; }
  .detail-row { grid-template-columns:50px 1fr; gap:18px; padding-block:34px; }
  .detail-row>div:last-child { grid-column:2; }
  .detail-row .number { font-size:32px; }
  .detail-row h2 { font-size:24px; }
  .contact-form { padding:22px; }
  .form-row { grid-template-columns:1fr; gap:0; }
  .tech .hero { padding-top:40px; }
  .tech .hero-top { margin-bottom:32px; }
  .tech .hero-photo { height:300px; }
  .architecture .arch-top { display:block; }
  .architecture .hero .arch-aside { max-width:100%; margin-top:30px; }
  .architecture .arch-photo { height:340px; }
  .logistics .hero .cover,.property .hero .cover { height:620px; }
  .logistics .hero .cover-copy,.property .hero .cover-copy { padding-block:30px; }
  .consulting .hero { padding-top:45px; }
  .consulting .consult-photo { height:280px; }
  .energy .energy-top { display:block; }
  .energy .hero p { margin-top:26px; }
  .energy .energy-photo { height:330px; border-radius:75px 8px 8px 8px; }
  .creative .hero h1 { font-size:clamp(44px,11vw,68px); }
  .creative .creative-bottom { margin-top:32px; }
  .creative .creative-statement { font-size:44px; margin-bottom:0; }
  .creative .creative-photo { height:300px; }
  .project-card img { aspect-ratio:1.6; }
}
@media(prefers-reduced-motion:reduce) { html{scroll-behavior:auto;} *{transition:none!important;} }