:root{--ink:#1c2325;--muted:#687277;--lime:#f0c84b;--paper:#eef0ed;--line:#c9cfcc}
body{background:var(--paper);color:var(--ink);font-family:'DM Sans','Noto Sans SC',sans-serif}
.nav-wrap{background:rgba(238,240,237,.95);border-bottom:1px solid #b6bfbb}.brand-mark{background:var(--ink);color:var(--lime);border-radius:2px;font-size:15px}.brand{letter-spacing:.01em}.brand-light{color:#758087}.nav-links{color:#4c585d}.nav-links a:hover,.footer a:hover{color:#a37c00}
.button{background:var(--ink);border-radius:3px;letter-spacing:.02em}.button:hover{box-shadow:0 8px 0 #d1b03d;transform:translateY(-2px)}.button span{color:var(--lime)}.button-small{border:1px solid var(--ink)}
.eyebrow{color:#677277;letter-spacing:.16em}.pulse{background:var(--lime);border-radius:0}.hero{position:relative}.hero:before{content:'SHANGXING / HVAC ENGINEERING';position:absolute;top:26px;right:0;color:#a7b0ac;font-size:9px;letter-spacing:.18em}.hero h1{letter-spacing:-.06em}.hero h1 em,.section h2 em,.cta-section h2 em{color:#a37c00}.hero-text{color:#58636a}.hero-visual{background:#bac2c1;border-radius:3px;border:1px solid #97a29f}.orb-one{background:#cbd1cf;border-radius:2px}.orb-two{background:#e4e6df;border-radius:2px}.visual-card{background:#252e31;border-radius:3px;box-shadow:10px 10px 0 #9fa9a7}.main-card{border:1px solid #536064}.up,.trend{color:var(--lime)}.visual-note{color:#425154}.logo-strip{background:#e2e5e1;border-color:#c3cbc7}.logos{color:#59656a}.section h2,.section-heading h2,.case-heading h2{letter-spacing:-.055em}.dark-section{background:#20292c}.service-grid{background:#566267}.service-grid article{background:#20292c;border-top:3px solid transparent}.service-grid article:hover{border-top-color:var(--lime)}.service-no{color:var(--lime)}.service-grid h3{letter-spacing:-.02em}.service-grid a{color:var(--lime)}.case-card{border-radius:3px;border:1px solid #d3d8d4}.case-green{background:#c5cfcb}.case-blue{background:#c9d0d1}.case-tag{background:#f1c94c;color:#20292c;border-radius:2px;font-weight:700}.graph-lines{background-color:#bbc8c1;background-image:linear-gradient(90deg,#82968d33 1px,transparent 1px),linear-gradient(#82968d33 1px,transparent 1px);background-size:28px 28px}.case-stat strong{color:#20292c}.device{border-radius:3px;border-color:#3c4b50;box-shadow:12px 14px 0 #8b9a9e}.cta-section{background:#e4bd3f}.button-light{background:#20292c;color:#f4f5f1}.footer{border-top:1px solid #c5cdca}.footer .brand-mark{background:#20292c}.cta-address{color:#53605e}
@media(max-width:720px){.hero:before{top:17px;right:auto;left:0;font-size:8px}.hero-visual{border-radius:3px}.nav-links.is-open{background:var(--paper)}}