:root{
  --bg:#f4f8fc;--surface:#ffffff;--surface2:#f8fbff;--line:#dbe6f1;
  --text:#102236;--muted:#65798e;--blue:#1565d8;--blue2:#0d4ba3;
  --blue-soft:#eaf3ff;--green:#138a58;--green-soft:#e8f7ef;
  --amber:#a96600;--amber-soft:#fff5df;--red:#c33a3a;--red-soft:#fff0f0;
  --shadow:0 14px 36px rgba(32,72,112,.09)
}
*{box-sizing:border-box}
body{margin:0;background:linear-gradient(180deg,#fbfdff 0,#eef5fb 100%);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
button{font:inherit}.page{max-width:1440px;margin:0 auto;padding:22px 28px 46px}.topbar{display:flex;align-items:center;justify-content:space-between;padding:10px 0 22px;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:11px}.brand-mark{width:38px;height:38px;border-radius:10px;background:var(--blue);display:grid;place-items:center;color:#fff;font-weight:900;font-size:20px}.brand strong,.brand span{display:block}.brand strong{font-size:13px;letter-spacing:.08em}.brand span{font-size:12px;color:var(--muted);margin-top:2px}
.cloud-badge{font-size:11px;font-weight:800;letter-spacing:.08em;color:var(--blue2);background:var(--blue-soft);border:1px solid #cfe1f8;border-radius:999px;padding:9px 12px}.dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#1cac67;margin-right:7px}
.hero{display:grid;grid-template-columns:.9fr 1.1fr;gap:34px;align-items:end;padding:34px 0}.kicker,.section-label{font-size:11px;letter-spacing:.14em;font-weight:900;color:var(--blue);text-transform:uppercase}.hero h1{font-size:clamp(42px,5vw,68px);line-height:.96;letter-spacing:-.045em;margin:12px 0 16px}.hero h1 span{color:var(--blue)}.hero p{font-size:17px;line-height:1.6;color:var(--muted);max-width:610px;margin:0}
.architecture{display:flex;align-items:center;justify-content:flex-end}.arch-card{min-width:185px;padding:16px;border:1px solid var(--line);background:var(--surface);border-radius:15px;box-shadow:var(--shadow)}.arch-card.primary{border-color:#a7c9f4;background:#f3f8ff}.arch-card small,.arch-card b,.arch-card span{display:block}.arch-card small{color:var(--blue);font-size:10px;font-weight:900;letter-spacing:.1em}.arch-card b{font-size:14px;margin:8px 0 4px}.arch-card span{font-size:11px;color:var(--muted)}.arch-arrow{padding:0 9px;color:#8aa9ca;font-size:20px}
.demo-shell{display:grid;grid-template-columns:260px minmax(0,1fr);gap:22px}.scenario-panel{background:#102b49;color:#fff;border-radius:20px;padding:19px;height:max-content;position:sticky;top:18px;box-shadow:var(--shadow)}.scenario-panel .section-label{color:#8fc0ff}.scenario{width:100%;display:flex;align-items:center;gap:12px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.04);color:#fff;text-align:left;padding:13px;border-radius:12px;margin-top:10px;cursor:pointer}.scenario:hover,.scenario.active{background:#fff;color:var(--text);border-color:#fff}.scenario b,.scenario small{display:block}.scenario small{font-size:11px;color:#a9bed3;margin-top:2px}.scenario.active small{color:var(--muted)}.scenario-icon{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;font-weight:900;flex:0 0 auto}.scenario-icon.allow{background:var(--green-soft);color:var(--green)}.scenario-icon.approval{background:var(--amber-soft);color:var(--amber)}.scenario-icon.deny{background:var(--red-soft);color:var(--red)}
.principle{border-top:1px solid rgba(255,255,255,.13);margin-top:20px;padding-top:18px}.principle small{font-size:10px;color:#8fc0ff;font-weight:900;letter-spacing:.1em}.principle strong{display:block;font-size:17px;margin:7px 0}.principle p{color:#abc0d4;font-size:12px;line-height:1.5;margin:0}
.workspace{min-width:0}.request-strip,.workflow-card,.card{background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.request-strip{display:flex;justify-content:space-between;gap:18px;padding:20px 22px}.request-strip h2{font-size:20px;margin:7px 0 0;max-width:780px}.request-meta{display:grid;grid-template-columns:1fr;gap:8px;min-width:225px}.request-meta div{background:var(--surface2);border:1px solid #e6eef7;border-radius:10px;padding:9px 11px}.request-meta span,.request-meta strong{display:block}.request-meta span{font-size:10px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}.request-meta strong{font-size:12px;margin-top:3px}
.workflow-card{padding:20px 22px;margin-top:16px}.section-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}.section-head h3{margin:5px 0 0;font-size:17px}.state-chip,.service-chip{font-size:10px;font-weight:900;letter-spacing:.08em;border-radius:999px;padding:7px 9px}.state-chip{background:var(--blue-soft);color:var(--blue)}.service-chip.neutral{background:#f0f4f8;color:#6e8193}.service-chip.live{background:var(--green-soft);color:var(--green)}.service-chip.error{background:var(--red-soft);color:var(--red)}
.workflow{display:grid;grid-template-columns:1fr auto 1fr auto 1fr auto 1fr auto 1fr;align-items:center;margin:20px 0}.flow-step{text-align:center;border:1px solid var(--line);border-radius:12px;background:var(--surface2);padding:14px 8px;transition:.2s}.flow-step b,.flow-step small{display:block}.flow-step b{font-size:13px;margin-top:6px}.flow-step small{font-size:10px;color:var(--muted);margin-top:3px}.step-num{display:grid;place-items:center;width:24px;height:24px;border-radius:50%;margin:auto;background:#e8eef5;color:#567086;font-size:11px;font-weight:900}.flow-step.active{border-color:#98c3f3;background:#eef6ff}.flow-step.active .step-num{background:var(--blue);color:#fff}.flow-step.done{border-color:#a9dbc4;background:#f1fbf6}.flow-step.done .step-num{background:var(--green);color:#fff}.flow-line{height:2px;width:20px;background:#d5e1ed}
.run-button{width:100%;border:0;border-radius:12px;background:linear-gradient(180deg,#1c70e5,#1058be);color:#fff;padding:14px 18px;cursor:pointer;box-shadow:0 8px 18px rgba(21,101,216,.23)}.run-button span,.run-button small{display:block}.run-button span{font-weight:900}.run-button small{font-size:10px;margin-top:3px;opacity:.8}.run-button:disabled{opacity:.6;cursor:wait}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px}.card{padding:20px}.prompt-box,.result-box{border:1px solid var(--line);border-radius:12px;padding:14px;margin-top:14px}.prompt-box{background:#f8fbff}.result-box{background:#fbfcfe}.prompt-box small,.result-box small{font-size:10px;color:var(--blue);font-weight:900;letter-spacing:.08em}.prompt-box p,.result-box p{font-size:13px;line-height:1.5;margin:7px 0 0;color:#29445f}.model-meta,.authority-grid,.receipt-grid{display:grid;gap:8px;margin-top:12px}.model-meta{grid-template-columns:repeat(3,1fr)}.authority-grid{grid-template-columns:repeat(2,1fr)}.receipt-grid{grid-template-columns:repeat(2,1fr)}.model-meta div,.authority-grid div,.receipt-grid div{border:1px solid #e4edf6;background:var(--surface2);border-radius:10px;padding:10px}.model-meta span,.authority-grid span,.receipt-grid span{display:block;font-size:9px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}.model-meta strong,.authority-grid strong,.receipt-grid strong,.receipt-grid code{display:block;font-size:11px;margin-top:4px;overflow-wrap:anywhere}
.decision-badge{font-size:10px;font-weight:900;border-radius:999px;padding:7px 10px}.decision-badge.neutral{background:#f0f4f8;color:#6e8193}.decision-badge.ALLOW{background:var(--green-soft);color:var(--green)}.decision-badge.APPROVAL{background:var(--amber-soft);color:var(--amber)}.decision-badge.DENY{background:var(--red-soft);color:var(--red)}.decision-copy{font-size:13px;line-height:1.55;color:var(--muted)}
.hash-box{border:1px dashed #b8cce1;background:#f8fbff;border-radius:10px;padding:11px;margin-top:10px}.hash-box span,.hash-box code{display:block}.hash-box span{font-size:9px;color:var(--muted);letter-spacing:.08em}.hash-box code{font-size:10px;margin-top:5px;overflow-wrap:anywhere;color:var(--blue2)}
.activity-list{margin-top:12px}.activity-row{display:grid;grid-template-columns:1.15fr .65fr 1fr;gap:8px;align-items:center;padding:10px 0;border-bottom:1px solid #e9eff6;font-size:11px}.activity-row:last-child{border-bottom:0}.activity-row code{font-size:9px;overflow-wrap:anywhere;color:#567086}.event-status{font-weight:800;color:var(--blue2)}.empty-activity{border:1px dashed #cddbe8;border-radius:10px;padding:22px;text-align:center;color:var(--muted);font-size:12px}
.judge-proof{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-top:16px}.proof-items{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px}.proof-items span{font-size:10px;font-weight:800;color:#355570;background:#f2f7fc;border:1px solid #dde9f4;border-radius:999px;padding:7px 9px}.judge-proof h3{margin:5px 0 0;font-size:16px}
.error{margin-top:12px;background:var(--red-soft);border:1px solid #f0b5b5;color:#992f2f;border-radius:10px;padding:12px;font-size:12px;white-space:pre-wrap}.hidden{display:none}
footer{text-align:center;color:#8093a5;font-size:10px;padding:24px 0 0}
@media(max-width:1050px){.hero{grid-template-columns:1fr}.architecture{justify-content:flex-start}.demo-shell{grid-template-columns:1fr}.scenario-panel{position:static;display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.scenario-panel>.section-label,.principle{grid-column:1/-1}.scenario{margin-top:0}.two-col{grid-template-columns:1fr}}
@media(max-width:720px){.page{padding:14px}.topbar{align-items:flex-start;gap:12px}.cloud-badge{font-size:9px}.hero{padding:24px 0}.hero h1{font-size:42px}.architecture{display:grid;grid-template-columns:1fr}.arch-arrow{transform:rotate(90deg);text-align:center;padding:2px}.arch-card{min-width:0}.scenario-panel{grid-template-columns:1fr}.scenario-panel>.section-label,.principle{grid-column:auto}.request-strip{flex-direction:column}.request-meta{min-width:0}.workflow{grid-template-columns:1fr;gap:6px}.flow-line{height:14px;width:2px;margin:auto}.model-meta,.authority-grid,.receipt-grid{grid-template-columns:1fr}.section-head{align-items:center}.judge-proof{flex-direction:column;align-items:flex-start}.proof-items{justify-content:flex-start}.activity-row{grid-template-columns:1fr}.brand span{display:none}}

.approval-box{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:16px;padding:18px 20px;border:1px solid #f0cf91;background:#fff8e8;border-radius:16px;box-shadow:var(--shadow)}
.approval-box h3{margin:5px 0 6px;font-size:17px}.approval-box p{margin:0;color:#7b6335;font-size:12px}
.approval-button{border:0;border-radius:11px;padding:13px 18px;background:#c47a00;color:white;font-weight:900;cursor:pointer;white-space:nowrap}
.approval-button:disabled{opacity:.6}@media(max-width:720px){.approval-box{flex-direction:column;align-items:stretch}.approval-button{width:100%}}