:root{--ink:#102a43;--ink2:#163951;--teal:#138a82;--cyan:#55c6ba;--paper:#f4f7f6;--line:#d4dfdf;--muted:#607483;--white:#fff;--red:#c9544c;--gold:#c68a2d}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Source Han Sans SC","Noto Sans CJK SC","Microsoft YaHei","PingFang SC",sans-serif;line-height:1.55}a{text-decoration:none;color:inherit}button{font:inherit}.topbar{height:78px;padding:0 5vw;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:10;background:rgba(244,247,246,.9);backdrop-filter:blur(16px);border-bottom:1px solid rgba(16,42,67,.08)}.brand{display:flex;align-items:center;gap:10px}.brand img{width:40px;height:40px;object-fit:contain}.brand>span{display:flex;flex-direction:column}.brand b{font-size:21px;line-height:1;color:#222f58;letter-spacing:-.7px}.brand b span{color:var(--teal)}.brand small{font-size:7px;letter-spacing:1.2px;color:var(--muted);margin-top:5px}.topbar nav{display:flex;gap:30px;font-size:13px;font-weight:700}.topbar nav a:hover{color:var(--teal)}.nav-cta{background:var(--ink);color:white;padding:11px 17px;font-size:12px;font-weight:800;border-radius:2px}
.hero{min-height:720px;max-width:1440px;margin:auto;padding:90px 6vw 80px;display:grid;grid-template-columns:1fr .9fr;gap:8vw;align-items:center;position:relative;overflow:hidden}.hero:before{content:"";position:absolute;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(19,138,130,.13),transparent 68%);left:-250px;top:0}.eyebrow{font-size:10px;letter-spacing:2.2px;font-weight:900;color:var(--teal)}.hero h1,.section-head h2,.method h2,.contact h2{font-family:"Songti SC","STSong",Georgia,serif;font-size:clamp(43px,5vw,72px);font-weight:600;line-height:1.08;letter-spacing:-2.5px;margin:20px 0}.hero h1 em{color:var(--teal);font-style:normal}.lead{font-size:17px;color:#536b7a;max-width:590px}.hero-actions{display:flex;gap:12px;margin:32px 0}.button{padding:14px 20px;font-size:13px;font-weight:800}.button.primary{background:var(--ink);color:white}.button.primary span{margin-left:24px}.button.ghost{border:1px solid #bdcccc}.trust{display:flex;gap:28px;color:var(--muted);font-size:11px}.trust span:before{content:"✓";color:var(--teal);font-weight:900;margin-right:7px}
.evidence-card{background:white;padding:27px;box-shadow:0 28px 80px rgba(16,42,67,.15);border-top:4px solid var(--teal);transform:rotate(.7deg)}.card-head,.card-foot,.checklist p,.metrics{display:flex;align-items:center}.card-head{justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:16px;font-size:9px;letter-spacing:1.5px;color:var(--muted)}.card-head b{color:var(--teal)}.card-head i{display:inline-block;width:7px;height:7px;border-radius:50%;background:#42b694;box-shadow:0 0 0 5px #e4f5ef;margin-right:6px}.case-title{padding:25px 0 17px}.case-title small{color:var(--muted);font-size:10px}.case-title h2{font-size:20px;margin:5px 0}.case-title p{font-size:10px;color:var(--muted)}.progress{height:5px;background:#e4eceb}.progress span{display:block;width:var(--p);height:100%;background:var(--teal)}.metrics{justify-content:space-between;padding:22px 0;border-bottom:1px solid var(--line)}.metrics div{display:flex;flex-direction:column}.metrics strong{font-size:23px}.metrics small{font-size:9px;color:var(--muted)}.checklist p{gap:10px;margin:0;padding:13px 0;border-bottom:1px solid var(--line)}.checklist p span{width:26px;height:26px;display:grid;place-items:center;border-radius:50%;font-weight:900}.done{background:#e5f5f1;color:var(--teal)}.warn{background:#fff0e8;color:var(--red)}.checklist b{font-size:11px}.checklist small{margin-left:auto;font-size:9px;color:var(--muted)}.card-foot{background:var(--ink);color:white;padding:14px;margin-top:18px;gap:12px}.card-foot span{font-size:9px;color:#97adbd}.card-foot b{font-size:10px}.card-foot i{margin-left:auto}
.statement{background:var(--ink);color:#93a8b7;padding:28px 5vw;display:flex;justify-content:center;align-items:center;gap:24px;font-size:12px;font-weight:800}.statement p{margin:0}.statement i{font-style:normal;color:#496579}.statement .active{color:var(--cyan)}
.services,.cases,.deliverables{padding:105px 5vw}.section-head{text-align:center;max-width:760px;margin:0 auto 55px}.section-head h2,.method h2{font-size:clamp(36px,4vw,54px)}.section-head>p:last-child{color:var(--muted)}.service-grid{max-width:1220px;margin:auto;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}.service-grid article{min-height:330px;background:white;padding:34px;display:flex;flex-direction:column;position:relative;transition:.25s}.service-grid article:hover{transform:translateY(-4px);box-shadow:0 15px 45px rgba(16,42,67,.12);z-index:2}.service-grid .featured{background:var(--teal);color:white}.service-grid .num{font:italic 14px Georgia;color:#93a8b7}.featured .num{color:#a8ddd7}.service-grid small{font-size:9px;letter-spacing:1.3px;margin:25px 0 5px;color:var(--teal);font-weight:900}.featured small{color:#c7ebe7}.service-grid h3{font-size:20px;margin:4px 0 10px}.service-grid p{font-size:12px;color:var(--muted)}.featured p{color:#d6efec}.service-grid ul{list-style:none;padding:0;font-size:11px}.service-grid li{padding:5px 0;border-bottom:1px solid rgba(255,255,255,.18)}.service-grid li:before{content:"✓";margin-right:8px}.service-grid a,.service-grid>article>b{margin-top:auto;font-size:10px;font-weight:900}.service-grid a{color:white}
.method{padding:105px 7vw;background:linear-gradient(125deg,var(--ink),#102f47 60%,#0e5e5d);color:white;display:grid;grid-template-columns:.9fr 1.1fr;gap:10vw;align-items:center}.eyebrow.light{color:#7fd3ca}.method-copy>p:not(.eyebrow){color:#aec0cc}.boundary{border-left:3px solid var(--cyan);padding:3px 0 3px 17px;margin-top:32px}.boundary b{font-size:11px}.boundary p{font-size:10px;color:#9fb3c0;margin:5px 0}.steps{list-style:none;padding:0;margin:0}.steps li{display:grid;grid-template-columns:55px 1fr;padding:19px 0;border-bottom:1px solid rgba(255,255,255,.14)}.steps span{font:italic 14px Georgia;color:var(--cyan)}.steps b{font-size:14px}.steps p{font-size:10px;color:#9fb3c0;margin:4px 0}
.section-head.left{text-align:left;margin:0 0 45px}.case-tabs{max-width:1220px;margin:auto;display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--line)}.case-tabs button{border:0;background:transparent;padding:18px;cursor:pointer;font-size:12px;font-weight:800;color:var(--muted)}.case-tabs button.active{color:var(--teal);border-bottom:3px solid var(--teal)}.case-panel{max-width:1220px;margin:auto;background:white;padding:48px;display:grid;grid-template-columns:1.4fr 1fr;gap:70px;box-shadow:0 18px 55px rgba(16,42,67,.08)}.case-panel small{color:var(--teal);letter-spacing:1.5px;font-size:9px}.case-panel h3{font:600 29px/1.25 "Songti SC","STSong",serif;margin:13px 0}.case-panel p{font-size:12px;color:var(--muted)}.case-panel dl{margin:0;border-left:1px solid var(--line);padding-left:35px}.case-panel dl div{padding:13px 0;border-bottom:1px solid var(--line)}.case-panel dt{font-size:9px;color:var(--muted)}.case-panel dd{font-size:11px;font-weight:800;margin:4px 0}
.deliverables{background:#eaf0ef}.deliverable-grid{max-width:1220px;margin:auto;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.deliverable-grid div{background:white;padding:30px}.deliverable-grid span{color:var(--teal);font:italic 13px Georgia}.deliverable-grid b{display:block;font-size:14px;margin:30px 0 8px}.deliverable-grid p{font-size:10px;color:var(--muted)}
.contact{background:white;padding:85px 7vw;display:flex;justify-content:space-between;align-items:center;gap:50px}.contact p{font-size:9px;letter-spacing:2px;color:var(--teal);font-weight:900}.contact h2{font-size:clamp(30px,3.5vw,48px);max-width:800px}.contact a{flex:none;background:var(--teal);color:white;padding:17px 22px;font-size:12px;font-weight:900}.contact a span{margin-left:25px}footer{padding:34px 5vw;display:flex;align-items:center;gap:28px;border-top:1px solid var(--line)}footer p,footer>span{font-size:9px;color:var(--muted)}footer>span{margin-left:auto}
@media(max-width:900px){.topbar nav{display:none}.hero,.method{grid-template-columns:1fr}.hero{padding-top:65px}.evidence-card{max-width:620px}.service-grid{grid-template-columns:repeat(2,1fr)}.deliverable-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.topbar{height:68px}.nav-cta{display:none}.hero{padding:60px 20px}.hero h1{font-size:45px}.trust{flex-wrap:wrap}.evidence-card{padding:20px}.statement{justify-content:flex-start;overflow:auto;white-space:nowrap}.services,.cases,.deliverables{padding:75px 20px}.service-grid{grid-template-columns:1fr}.method{padding:75px 20px}.case-tabs{grid-template-columns:repeat(2,1fr)}.case-panel{grid-template-columns:1fr;padding:28px;gap:25px}.case-panel dl{border-left:0;padding:0}.deliverable-grid{grid-template-columns:1fr}.contact{padding:65px 20px;align-items:flex-start;flex-direction:column}footer{flex-wrap:wrap}footer>span{margin-left:0;width:100%}}