:root{--ink:#10283b;--muted:#60717d;--blue:#087d95;--line:#dce6eb;--paper:#f3f7f8;--orange:#e6aa55}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;color:var(--ink);font:16px/1.75 "Microsoft YaHei",Arial,sans-serif;background:#fff}a{color:inherit;text-decoration:none}a:hover{color:var(--blue)}img{display:block;width:100%;object-fit:cover}.wrap{width:calc(100% - 64px);max-width:1320px;margin:auto}.eyebrow{font-size:12px;font-weight:700;letter-spacing:2px;color:var(--blue);margin:0 0 12px}.top{border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}.top .wrap{display:flex;justify-content:space-between;padding-block:8px}.masthead{display:flex;align-items:center;justify-content:space-between;gap:30px;padding-block:23px}.brand{font-size:26px;font-weight:800;letter-spacing:2px}.brand small{display:block;font-size:11px;letter-spacing:1px;color:var(--muted);font-weight:400}.location{display:inline-flex;align-items:center;gap:9px;font-size:14px;border-left:1px solid var(--line);padding-left:20px;margin-left:20px;letter-spacing:0}.location:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--blue)}nav{display:flex;gap:25px;font-size:14px}.phone{text-align:right}.phone span{display:block;font-size:11px;color:var(--muted)}.phone a{font-size:22px;font-weight:700;line-height:1.2}.crumb{font-size:12px;color:var(--muted);padding:12px 0 18px}.hero{display:grid;grid-template-columns:1fr 1fr;background:var(--ink);color:#fff;min-height:500px;border-radius:4px;overflow:hidden}.hero-copy{padding:52px 44px;display:flex;flex-direction:column;justify-content:center;align-items:flex-start}.hero .eyebrow{color:#80c7d5}.hero h1{font-size:clamp(30px,3vw,46px);line-height:1.35;letter-spacing:1px;margin:0 0 22px}.hero p{max-width:520px;color:#cfdee5;font-size:15px}.hero-photo{position:relative;min-width:0;min-height:360px}.hero-photo img{height:100%;position:absolute;inset:0}.hero-photo:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(16,40,59,.25),transparent)}.photo-caption{position:absolute;bottom:20px;left:22px;right:22px;color:#fff;background:rgba(16,40,59,.8);padding:13px 17px;font-size:12px;z-index:1}.photo-caption strong{display:block;font-size:15px}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}.button{display:inline-flex;align-items:center;justify-content:center;background:var(--blue);color:#fff;border:1px solid var(--blue);border-radius:3px;padding:11px 24px;font-size:14px;font-weight:700}.button:hover{color:#fff;background:#096b7f}.button.light{background:#fff;color:var(--ink);border-color:#fff}.button.line{background:transparent;color:#fff;border-color:#607c8c}.facts{display:grid;grid-template-columns:repeat(4,1fr);padding:26px 0;border-bottom:1px solid var(--line);gap:24px}.facts strong{display:block;font-size:17px}.facts span{color:var(--muted);font-size:12px}section{padding:62px 0}.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:25px;margin-bottom:26px}.section-head h2{margin:0;font-size:29px;line-height:1.35}.section-head p{font-size:13px;color:var(--muted);max-width:520px;margin:8px 0 0}.more{font-size:13px;white-space:nowrap;color:var(--blue)}.sectors{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.sector{padding:24px;border:1px solid var(--line);border-radius:4px;transition:transform .2s,border-color .2s}.sector:hover{transform:translateY(-3px);border-color:var(--blue)}.sector .number{font-size:12px;color:var(--blue);letter-spacing:1px}.sector h3{font-size:18px;margin:9px 0}.sector p{margin:0;color:var(--muted);font-size:13px}.soft{background:var(--paper)}.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.case{border:1px solid var(--line);background:#fff;min-width:0;border-radius:4px;overflow:hidden}.case-image{aspect-ratio:16/10;position:relative;background:#dde8ee;overflow:hidden}.case-image img{height:100%;transition:transform .3s}.case:hover img{transform:scale(1.025)}.case-body{padding:19px}.tag{display:inline-block;font-size:11px;padding:3px 8px;background:#eaf4f6;color:var(--blue);border-radius:2px;margin-bottom:10px}.tag.reference{background:#f0f2f3;color:#6d7982}.case h3{font-size:16px;line-height:1.6;margin:0 0 8px}.case p{font-size:12px;color:var(--muted);margin:0}.quote{display:grid;grid-template-columns:1fr 1.1fr;gap:60px}.quote h2{font-size:31px;margin:0 0 18px}.quote p{color:var(--muted);font-size:14px}.quote-items{display:grid;grid-template-columns:repeat(2,1fr);gap:0 24px}.quote-item{padding:17px 0;border-top:1px solid var(--line)}.quote-item b{display:block;font-size:15px}.quote-item span{display:block;color:var(--muted);font-size:12px;margin-top:5px}.quote-note{font-size:12px;border-left:3px solid var(--orange);padding-left:14px}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:26px}.step b{font-size:26px;letter-spacing:1px;color:#a4c5cf}.step h3{font-size:16px;margin:8px 0}.step p{font-size:12px;color:var(--muted);margin:0}.reading{display:grid;grid-template-columns:1fr 1fr;gap:40px}.reading-list{display:grid;gap:0}.reading-link{display:flex;gap:18px;justify-content:space-between;align-items:baseline;padding:15px 0;border-bottom:1px solid var(--line);font-size:14px}.reading-link time{font-size:11px;color:var(--muted);white-space:nowrap}.faq details{padding:16px 0;border-bottom:1px solid var(--line);font-size:14px}.faq summary{cursor:pointer;font-weight:600}.faq p{font-size:13px;color:var(--muted);margin-bottom:0}.coverage{border:1px solid var(--line);padding:28px 30px;border-radius:4px}.coverage h2{font-size:21px;margin:0 0 6px}.coverage p{font-size:13px;color:var(--muted);margin:0 0 18px}.area-links{display:flex;flex-wrap:wrap;gap:10px}.area-links a{padding:5px 12px;background:var(--paper);font-size:13px;border-radius:3px}.contact-band{background:var(--ink);color:#fff;padding:34px 0}.contact-band .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px}.contact-band h2{font-size:24px;margin:0 0 6px}.contact-band p{margin:0;font-size:13px;color:#bdd0dc}.contact-band .phone a{font-size:28px}.contact-band .phone span{color:#a9c5d6;margin-top:8px}footer{background:#0b1f2c;color:#a9bcc8;padding:30px 0;font-size:12px}footer .wrap{display:flex;justify-content:space-between;gap:28px}footer p{margin:0 0 7px}.preview-bar{background:#fff5d9;color:#7d5810;padding:9px 20px;text-align:center;font-size:13px}.directory-hero{padding:52px 0 25px}.directory-hero h1{font-size:38px;margin:0}.directory-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.directory-card{border:1px solid var(--line);padding:24px;border-radius:4px}.directory-card h2{margin:0 0 14px;font-size:20px}.directory-card .area-links{gap:7px}.directory-card .area-links a{font-size:12px;padding:3px 8px}@media(max-width:1100px){nav{gap:14px}.masthead{gap:16px}.brand{font-size:23px}.location{margin-left:10px;padding-left:10px}.hero-copy{padding:36px 28px}.quote{gap:32px}.cases{gap:16px}}@media(max-width:800px){.wrap{width:calc(100% - 32px)}.top .wrap>span:last-child{display:none}.masthead{flex-wrap:wrap;padding-block:17px;gap:16px}.brand{font-size:22px}.brand small{font-size:9px}.location{font-size:12px}.phone a{font-size:18px}.masthead nav{order:3;width:100%;justify-content:space-between;border-top:1px solid var(--line);padding-top:13px;gap:12px;font-size:12px}.hero{grid-template-columns:1fr}.hero-copy{padding:32px 25px}.hero h1{font-size:32px}.hero-photo{min-height:290px;order:2}.facts{grid-template-columns:repeat(2,1fr);gap:18px}.facts strong{font-size:15px}section{padding:42px 0}.section-head{align-items:flex-start}.section-head h2{font-size:25px}.section-head p{font-size:12px}.sectors{grid-template-columns:repeat(2,1fr);gap:12px}.sector{padding:18px}.sector h3{font-size:16px}.cases{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.case-body{padding:14px}.case h3{font-size:14px}.quote,.reading{grid-template-columns:1fr;gap:28px}.quote h2{font-size:26px}.steps{grid-template-columns:repeat(2,1fr);gap:22px}.coverage{padding:23px}.contact-band .wrap,footer .wrap{align-items:flex-start;flex-direction:column}.contact-band .phone{text-align:left}.contact-band h2{font-size:22px}.directory-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.directory-hero h1{font-size:30px}}@media(max-width:420px){.brand{font-size:20px}.location{font-size:11px}.phone a{font-size:16px}.hero h1{font-size:28px}.hero p{font-size:13px}.hero-photo{min-height:240px}.case-image{aspect-ratio:4/3}.case-body{padding:11px}.case h3{font-size:13px}.tag{font-size:10px;padding:2px 5px}.sector{padding:15px}.sector p{font-size:12px}.section-head{display:block}.more{display:inline-block;margin-top:13px}.directory-grid{grid-template-columns:1fr}.quote-items{gap:0 18px}.reading-link{font-size:13px}.reading-link time{font-size:10px}.button{padding:10px 19px}.masthead .phone span{font-size:10px}}
@media(max-width:420px){.hero h1{font-size:24px;letter-spacing:.3px}.hero-copy{padding:30px 22px}.masthead .brand{max-width:100%}.reading-link span{min-width:0;overflow-wrap:anywhere}}
/* Service-led city hero: neutral engineering photography, no project location. */
.service-hero{grid-template-columns:minmax(0,1fr) minmax(0,1.12fr);background:#f2f6f8;color:var(--ink);min-height:490px;border:1px solid #e3ebef;border-radius:8px}
.service-hero .hero-copy{padding:44px 40px;min-width:0}
.service-hero .eyebrow{color:var(--blue);font-size:12px;letter-spacing:1.5px;margin-bottom:20px}
.service-hero h1{font-size:clamp(28px,2.75vw,42px);line-height:1.35;letter-spacing:0;margin:0 0 12px;font-weight:800}
.hero-subtitle{font-size:23px;line-height:1.55;color:#405b6c}
.hero-services{display:flex;flex-wrap:wrap;gap:8px;margin:24px 0 4px;padding:0;list-style:none}
.hero-services li{font-size:12px;padding:4px 10px;background:#fff;border:1px solid #dce6eb;border-radius:3px;color:#32576a}
.service-hero p{font-size:14px;line-height:1.9;color:#60717d;margin:16px 0 0}
.service-hero .actions{margin-top:28px}
.button.outline{background:transparent;border-color:#b9ccd6;color:#244d60}
.button.outline:hover{background:#e6eff3;border-color:var(--blue);color:var(--blue)}
.service-hero .hero-photo{margin:0;min-height:490px;overflow:hidden;background:#e4ebee}
.service-hero .hero-photo img{object-position:center;object-fit:cover}
.service-hero .hero-photo:after{display:none}
.service-hero .photo-caption{left:auto;right:20px;bottom:20px;display:flex;flex-direction:column;gap:2px;padding:11px 16px;background:rgba(255,255,255,.94);color:#284657;border:1px solid rgba(255,255,255,.6);border-radius:4px;font-size:13px;line-height:1.6}
.service-hero .photo-caption small{font-size:10px;letter-spacing:.4px;color:#6a7e89}
@media(max-width:1100px){.service-hero .hero-copy{padding:34px 28px}.hero-subtitle{font-size:20px}.service-hero .hero-photo{min-height:480px}}
@media(max-width:800px){.service-hero{grid-template-columns:minmax(0,1fr);min-height:0}.service-hero .hero-copy{padding:30px 26px}.service-hero h1{font-size:30px}.hero-subtitle{font-size:19px}.hero-services{margin-top:19px;gap:7px}.service-hero .actions{margin-top:22px}.service-hero .hero-photo{min-height:0;aspect-ratio:4/3}.service-hero .photo-caption{right:14px;bottom:14px;padding:8px 12px}}
@media(max-width:420px){.service-hero .hero-copy{padding:28px 21px}.service-hero h1{font-size:27px}.hero-subtitle{font-size:18px}.service-hero .eyebrow{font-size:11px;margin-bottom:15px;letter-spacing:1px}.hero-services{gap:6px}.hero-services li{font-size:11px;padding:3px 8px}.service-hero p{font-size:13px}.service-hero .button{padding:10px 15px;font-size:13px}.service-hero .actions{gap:9px}}
/* User-supplied 4:3 composites: display the whole composition, never crop. */
.service-hero .hero-photo{min-height:0;aspect-ratio:auto;align-self:center;background:#edf2f5;display:flex;flex-direction:column}
.service-hero .hero-photo img{position:static;inset:auto;width:100%;height:auto;aspect-ratio:4/3;object-fit:contain}
.service-hero .photo-caption{position:static;inset:auto;display:flex;flex-direction:row;justify-content:space-between;align-items:center;gap:12px;padding:7px 13px;background:#edf2f5;border:0;border-radius:0;font-size:11px}
.service-hero .photo-caption small{font-size:10px}
@media(max-width:420px){.service-hero .photo-caption{font-size:10px;padding:6px 10px}.service-hero .photo-caption small{font-size:9px}}
/* FAQ bank: preserve native details accessibility and mobile wrapping. */
.faq [hidden]{display:none!important}.faq-category{display:inline-block;font-weight:400;font-size:10px;line-height:1.6;padding:2px 6px;margin:0 8px 3px 0;color:#087d95;background:#eaf4f6;border-radius:3px;vertical-align:middle}.faq summary{overflow-wrap:anywhere;line-height:1.85}.faq [data-faq-list] p{line-height:1.95;margin-top:10px}.faq-shuffle{margin-top:20px;font-size:12px;padding:9px 18px;cursor:pointer}.faq .section-head{margin-bottom:12px}.faq{min-width:0}
@media(max-width:420px){.faq summary{font-size:13px}.faq [data-faq-list] p{font-size:12px}.faq-category{font-size:9px;margin-right:6px}}

/* Regional service notes and hierarchical city navigation. */
.local-service{border-top:1px solid var(--line)}
.service-intro{max-width:900px;color:var(--muted);font-size:14px}
.service-notes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:24px}
.service-note{padding:23px;border:1px solid var(--line);border-radius:5px;min-width:0}
.service-note h3{font-size:17px;line-height:1.55;margin:0 0 12px}
.service-note p{font-size:13px;line-height:1.9;color:var(--muted);margin:0;overflow-wrap:anywhere}
.service-next{display:flex;flex-wrap:wrap;align-items:center;gap:12px 22px;margin-top:22px;font-size:13px}
.service-next a{color:var(--blue);text-decoration:underline;text-underline-offset:4px}
.service-scope{font-size:12px;color:var(--muted);margin:16px 0 0}
.crumb{line-height:1.9;overflow-wrap:anywhere}
.crumb .crumb-separator{padding:0 5px}
.coverage h3{font-size:15px;margin:20px 0 10px}
.coverage .coverage-path{display:flex;flex-wrap:wrap;gap:9px 18px;margin:20px 0 0}
.coverage-path a{font-size:13px;color:var(--blue);text-decoration:underline;text-underline-offset:4px}
.directory-summary{font-size:12px;color:var(--muted);margin:0 0 16px}
.reading>div{min-width:0}.reading-link>span{min-width:0;overflow-wrap:anywhere}
@media(max-width:800px){.service-notes{grid-template-columns:1fr;gap:13px}.service-note{padding:20px}.service-note h3{font-size:16px}.service-intro{font-size:13px}}
@media(max-width:420px){.reading-link{flex-wrap:wrap;gap:4px 12px}.reading-link>span{flex:1 1 210px}.reading-link time{margin-left:auto}.service-note{padding:17px}.coverage{padding:20px}.service-next{align-items:flex-start;flex-direction:column}.local-service .section-head h2{font-size:24px}}