:root {
  --ink:#173038; --muted:#68797d; --jade:#4e8d86; --jade-dark:#245f5a;
  --paper:#f5f2eb; --white:#fff; --line:#dcded8; --warm:#e9dbc7; --green:#dce9d8;
  --shadow:0 20px 55px rgba(31,59,62,.11); --radius:26px;
}
*{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;color:var(--ink);font-family:"PingFang SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;background:#fbfaf7;line-height:1.75}
a{color:inherit} button{font:inherit}.section-shell{width:min(1180px,calc(100% - 48px));margin-inline:auto}.section{padding:110px 0}.section[id]{scroll-margin-top:84px}
.site-header{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;align-items:center;height:70px;padding:0 max(24px,calc((100% - 1180px)/2));background:rgba(251,250,247,.9);backdrop-filter:blur(18px);border-bottom:1px solid rgba(23,48,56,.08)}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;font-weight:700;letter-spacing:.02em}.brand-mark{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--ink);color:white;font-family:Georgia,serif}.site-header nav{display:flex;gap:28px}.site-header nav a{text-decoration:none;color:var(--muted);font-size:14px;transition:color .2s ease,background .2s ease}.site-header nav a:hover,.site-header nav a.active{color:var(--jade-dark)}
.hero{min-height:calc(100vh - 70px);display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:54px;padding-block:80px}.eyebrow{margin:0 0 14px;color:var(--jade-dark);font-weight:700;font-size:13px;letter-spacing:.16em;text-transform:uppercase}.hero h1{font-size:clamp(48px,6.2vw,82px);line-height:1.08;letter-spacing:-.05em;margin:0}.hero h1 span{color:var(--jade)}.hero-lead{max-width:650px;font-size:20px;color:#455b60;margin:30px 0}.notice{display:inline-block;max-width:620px;padding:12px 18px;border-left:4px solid var(--jade);background:#eaf2ef;color:#506569;font-size:14px}
.hero-visual{position:relative;min-height:600px;border-radius:50%;background:radial-gradient(circle,#fff 0 24%,#e8f0ec 25% 26%,transparent 27%),linear-gradient(145deg,#edf3f0,#f5eee4);overflow:hidden}.orbit{position:absolute;border:1px solid rgba(36,95,90,.24);border-radius:50%;inset:16%}.orbit-two{inset:29%}.core{position:absolute;inset:42%;display:grid;place-items:center;border-radius:50%;background:var(--ink);color:white;font:700 40px Georgia,serif;box-shadow:var(--shadow)}.satellite{position:absolute;width:180px;padding:18px 20px;border-radius:18px;background:rgba(255,255,255,.92);box-shadow:var(--shadow)}.satellite b,.satellite span{display:block}.satellite b{font-size:20px}.satellite span{font-size:13px;color:var(--muted)}.guest{top:12%;left:8%}.staff{right:2%;top:39%}.operation{bottom:9%;left:14%}
.section-heading{display:flex;align-items:center;gap:22px;margin-bottom:18px}.section-number{font:italic 700 52px Georgia,serif;color:#bdd1ca}.section-heading h2{margin:0;font-size:clamp(32px,4vw,52px);line-height:1.15;letter-spacing:-.03em}.section-heading .eyebrow{margin:0 0 4px}.section-intro{max-width:780px;color:var(--muted);font-size:17px;margin:0 0 44px}.direction-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.direction-card{position:relative;min-height:330px;padding:34px;border:1px solid var(--line);border-radius:var(--radius);background:white;overflow:hidden}.direction-card:nth-child(2){background:#f3eadf}.direction-card:nth-child(3){background:#eaf1e7}.direction-card h3{font-size:24px;margin:48px 0 14px}.direction-card p{color:#4e6267}.card-index{position:absolute;top:24px;right:27px;color:#b5c5c1;font:italic 700 42px Georgia,serif}.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}.tags span{padding:5px 11px;border-radius:99px;background:rgba(78,141,134,.11);color:var(--jade-dark);font-size:12px}
.cases-section{background:var(--ink);color:white}.cases-section .section-number{color:#486269}.cases-section .eyebrow{color:#8fc3b9}.cases-section .section-intro{color:#aebdc0}.case-list{border-top:1px solid #395159}.case-card{display:grid;grid-template-columns:1.05fr 1fr 1.35fr;gap:38px;padding:34px 0;border-bottom:1px solid #395159}.case-title{display:flex;gap:17px}.case-title h3{font-size:20px;line-height:1.35;margin:0 0 9px}.case-no{display:grid;place-items:center;flex:0 0 44px;height:44px;border-radius:50%;background:#294a50;color:#a8d4cb;font:700 14px Georgia,serif}.case-card h4{margin:0 0 8px;color:#8fc3b9;font-size:13px}.case-card p{margin:0;color:#c9d2d4;font-size:14px}.status{display:inline-block;padding:3px 9px;border-radius:99px;font-size:11px}.status.live{background:#dceadf;color:#255e4b}.status.test{background:#f5e5c8;color:#765821}.status.pilot{background:#e4e4f3;color:#4b4d7b}.code-note{margin:25px 0 0;color:#8da2a6;font-size:13px}
.opportunity{display:grid;grid-template-columns:.9fr 1.1fr;gap:60px;align-items:center;padding:82px 0;border-bottom:1px solid var(--line)}.opportunity.reverse{grid-template-columns:1.1fr .9fr}.opportunity.reverse .opportunity-copy{order:2}.opportunity-copy{position:relative}.opportunity-no{font:italic 700 96px Georgia,serif;color:#e3e9e6;position:absolute;right:10px;top:-62px;z-index:-1}.opportunity h3{font-size:36px;line-height:1.25;margin:0 0 22px;letter-spacing:-.03em}.opportunity-copy>p:not(.eyebrow){color:#50656a}.clean-list{padding:0;margin:26px 0 0;list-style:none}.clean-list li{position:relative;padding:9px 0 9px 24px;border-bottom:1px dashed #d8ddd9}.clean-list li::before{content:"";position:absolute;left:0;top:21px;width:8px;height:8px;border-radius:50%;background:var(--jade)}
.scenario-panel,.workspace-mockup{position:relative;padding:32px;border-radius:var(--radius);background:#f0eee7;box-shadow:var(--shadow)}.concept-label{position:absolute;right:18px;top:14px;padding:3px 9px;border:1px solid #b9c3bf;border-radius:99px;color:var(--muted);font-size:11px}.scenario-request{margin:28px 0 26px;padding:20px;border-radius:17px;background:white;font-weight:600}.step-tabs{display:grid;grid-template-columns:repeat(6,1fr);position:relative;margin-bottom:24px}.step-tabs::before{content:"";position:absolute;top:50%;left:7%;right:7%;height:2px;background:#b8cac4;z-index:0}.step-tab{position:relative;z-index:1;margin:auto;width:38px;height:38px;border:0;border-radius:50%;background:#c8d7d2;color:#526d68;cursor:pointer}.step-tab.active{background:var(--ink);color:white;transform:scale(1.12)}.step-display{min-height:160px;padding:24px;border-radius:18px;background:var(--ink);color:white}.step-display span{color:#8fc3b9;font-size:12px;font-weight:700}.step-display h4{font-size:24px;margin:4px 0 8px}.step-display p{margin:0;color:#c7d2d3}.interaction-hint{text-align:center;color:var(--muted);font-size:12px;margin:14px 0 0}
.mockup-tabs{display:flex;gap:8px;margin:20px 0}.mockup-tab{border:1px solid #bfc9c5;border-radius:99px;padding:7px 16px;background:transparent;color:#536b6b;cursor:pointer}.mockup-tab.active{background:var(--ink);border-color:var(--ink);color:white}.mockup-panel{min-height:330px;padding:22px;border-radius:18px;background:white}.mockup-heading{display:flex;justify-content:space-between;align-items:start;margin-bottom:16px}.mockup-heading h4{font-size:22px;margin:0}.mockup-heading span{font-size:12px;color:var(--muted)}.task-row{display:grid;grid-template-columns:34px 1fr;gap:12px;padding:14px 0;border-top:1px solid #eaebe7}.task-row i{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:#e5efeb;color:var(--jade-dark);font-style:normal;font-weight:700}.task-row b,.task-row small{display:block}.task-row b{font-size:14px}.task-row small{color:var(--muted)}
.operation-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.operation-grid div{min-height:120px;padding:22px;border-radius:20px;background:#eef3ef}.operation-grid div:last-child{grid-column:1/-1;background:#f3eadd}.operation-grid b,.operation-grid span{display:block}.operation-grid b{font-size:18px}.operation-grid span{margin-top:6px;color:var(--muted);font-size:14px}.connection{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:14px;margin-top:50px;padding:24px;border-radius:20px;background:var(--ink);color:white}.connection i{color:#8fc3b9;font-style:normal}
.sources{padding-bottom:100px}.sources details{border-top:1px solid var(--line);padding-top:24px}.sources summary{cursor:pointer;font-weight:700}.sources p,.sources li{color:var(--muted);font-size:13px}.sources a{color:var(--jade-dark)}footer{display:flex;justify-content:space-between;padding:24px max(24px,calc((100% - 1180px)/2));background:#ecebe6;color:var(--muted);font-size:12px}
.reveal{opacity:0;transform:translateY(20px);transition:opacity .65s ease,transform .65s ease}.reveal.visible{opacity:1;transform:none}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}}
@media(max-width:900px){.site-header nav{gap:14px}.hero{grid-template-columns:1fr;min-height:auto}.hero-visual{min-height:510px}.direction-grid{grid-template-columns:1fr}.case-card{grid-template-columns:1fr 1fr}.case-title{grid-column:1/-1}.opportunity,.opportunity.reverse{grid-template-columns:1fr;gap:34px}.opportunity.reverse .opportunity-copy{order:0}}
@media(max-width:650px){.site-header{height:auto;min-height:108px;align-content:center;flex-wrap:wrap;padding:10px 15px 9px}.brand{width:100%;justify-content:center}.site-header nav{display:grid;grid-template-columns:repeat(3,1fr);width:100%;gap:7px}.site-header nav a{padding:6px 4px;border-radius:9px;background:#f0eee8;text-align:center;font-size:12px}.site-header nav a.active{background:#dfece8;color:var(--jade-dark);font-weight:700}.section[id]{scroll-margin-top:118px}}
@media(max-width:560px){.section-shell{width:min(100% - 30px,1180px)}.section{padding:72px 0}.hero{padding-block:45px 65px}.hero h1{font-size:44px}.hero-lead{font-size:17px}.hero-visual{min-height:470px;border-radius:26px;background:linear-gradient(145deg,#edf3f0,#f5eee4);overflow:hidden}.orbit{inset:auto;top:20px;left:50%;width:250px;height:250px;transform:translateX(-50%)}.orbit-two{top:68px;width:154px;height:154px}.core{inset:auto;top:101px;left:50%;width:88px;height:88px;transform:translateX(-50%);font-size:32px}.satellite{left:14px!important;right:auto!important;width:calc(100% - 28px);min-height:58px;padding:10px 15px;display:grid;grid-template-columns:70px 1fr;align-items:center;gap:8px;border-radius:15px}.satellite b{font-size:16px}.satellite span{font-size:12px;line-height:1.4}.guest{top:264px}.staff{top:332px}.operation{top:400px;bottom:auto}.section-heading{gap:14px}.section-number{font-size:40px}.section-heading h2{font-size:34px}.case-card{grid-template-columns:1fr;gap:20px}.case-title{grid-column:auto}.opportunity{padding:60px 0}.opportunity h3{font-size:30px}.scenario-panel,.workspace-mockup{padding:20px}.concept-label{position:static;display:inline-block;margin-bottom:8px}.scenario-request{margin-top:8px}.step-tab{width:32px;height:32px}.operation-grid{grid-template-columns:1fr}.operation-grid div:last-child{grid-column:auto}.connection{align-items:flex-start;flex-direction:column}.connection i{transform:rotate(90deg);margin-left:30px}footer{gap:8px;flex-direction:column}}