:root{--kw-ink: #101828;--kw-ink-soft: #3a4560;--kw-muted: #475467;--kw-indigo: #4f46e5;--kw-indigo-hi: #5b54ec;--kw-indigo-lo: #4338ca;--kw-amber: #b54708;--kw-amber-bg: #fbeee0;--kw-green: #12824e;--kw-green-bg: #eff9f3;--kw-neutral: #5d6b82;--kw-neutral-bg: #eef1f5;--kw-red: #b42318;--kw-red-bg: #fdecea;--kw-faint: #98a2b3;--kw-faint-bg: #e4e7ec;--kw-banner-fg: #e4e7ec;--kw-glass: rgba(255, 255, 255, .55);--kw-glass-strong: rgba(255, 255, 255, .72);--kw-glass-border: rgba(255, 255, 255, .6);--kw-hairline: rgba(16, 24, 40, .14);--kw-r-sm: 12px;--kw-r-md: 14px;--kw-r-lg: 16px;--kw-r-pill: 999px;--kw-shadow-bar: inset 0 1px 0 rgba(255, 255, 255, .9), 0 2px 12px rgba(16, 24, 40, .05);--kw-shadow-card: inset 0 1px 0 rgba(255, 255, 255, .95), inset 0 -1px 0 rgba(16, 24, 40, .04), 0 8px 24px rgba(16, 24, 40, .07);--kw-shadow-primary: inset 0 1px 0 rgba(255, 255, 255, .35), 0 2px 8px rgba(79, 70, 229, .35);--kw-font: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", Meiryo, sans-serif;--kw-mono: ui-monospace, Menlo, monospace}*{box-sizing:border-box;margin:0}body{color:var(--kw-ink);font-family:var(--kw-font);font-size:14px;line-height:1.55;background:radial-gradient(900px 480px at 85% -10%,rgba(79,70,229,.14),transparent 60%),radial-gradient(700px 420px at -10% 30%,rgba(18,130,78,.1),transparent 55%),linear-gradient(135deg,#eef0fa,#f7f8fc 45%,#e9eff8);background-attachment:fixed}a{color:var(--kw-indigo);text-decoration:none}a:hover{color:var(--kw-indigo-lo);text-decoration:underline}button{font-family:inherit}.kw-page{max-width:1080px;margin:0 auto;padding:0 24px 64px}.kw-banner{margin-top:16px;background:var(--kw-ink);color:var(--kw-banner-fg);border-radius:var(--kw-r-sm);padding:9px 16px;font-size:12px;font-family:var(--kw-mono);letter-spacing:.02em}.kw-bar{display:flex;align-items:center;gap:16px;flex-wrap:wrap;padding:12px 16px;margin-top:12px;border-radius:var(--kw-r-lg);background:var(--kw-glass);backdrop-filter:blur(14px) saturate(1.5);-webkit-backdrop-filter:blur(14px) saturate(1.5);border:1px solid var(--kw-glass-border);box-shadow:var(--kw-shadow-bar)}.kw-brand{font-weight:700;font-size:17px}.kw-brand em{color:var(--kw-indigo);font-style:normal}.kw-chip{display:inline-block;padding:3px 12px;font-size:12px;font-weight:600;border-radius:var(--kw-r-pill);border:1px solid rgba(16,24,40,.05)}[data-mode=live].kw-chip{color:var(--kw-green);background:var(--kw-green-bg)}[data-mode=replay].kw-chip{color:var(--kw-neutral);background:var(--kw-neutral-bg)}.kw-chip-step{padding:3px 10px}.kw-chip-step[data-status=locked]{color:var(--kw-neutral);background:var(--kw-neutral-bg)}.kw-chip-step[data-status=ready]{color:var(--kw-indigo);background:#4f46e51a}.kw-chip-step[data-status=busy]{color:var(--kw-amber);background:var(--kw-amber-bg)}.kw-chip-step[data-status=done]{color:var(--kw-green);background:var(--kw-green-bg)}.kw-chip-step[data-status=refused],.kw-chip-step[data-status=error]{color:var(--kw-red);background:var(--kw-red-bg)}.kw-chip-neutral{color:var(--kw-neutral);background:var(--kw-neutral-bg)}.kw-card{margin-top:20px;border-radius:var(--kw-r-lg);padding:24px;background:var(--kw-glass-strong);backdrop-filter:blur(16px) saturate(1.5);-webkit-backdrop-filter:blur(16px) saturate(1.5);border:1px solid var(--kw-glass-border);box-shadow:var(--kw-shadow-card)}.kw-card[data-status=locked]{opacity:.55}.kw-btn{border-radius:var(--kw-r-sm);font-weight:600;cursor:pointer}.kw-btn:disabled{cursor:not-allowed}.kw-btn-primary{background:linear-gradient(180deg,var(--kw-indigo-hi) 0%,var(--kw-indigo) 55%,var(--kw-indigo-lo) 100%);color:#fff;border:1px solid var(--kw-indigo-lo);padding:12px 24px;font-size:15px;box-shadow:var(--kw-shadow-primary)}.kw-btn-primary:disabled{background:var(--kw-faint-bg);color:var(--kw-faint);border:1px solid var(--kw-faint-bg);box-shadow:none}.kw-btn-quiet{background:#ffffffb3;color:var(--kw-ink);border:1px solid var(--kw-hairline);padding:11px 20px;font-size:14px}.kw-btn-quiet[aria-pressed=true]{color:var(--kw-indigo);background:#4f46e51a;border-color:#4f46e538}.kw-btn-step{padding:10px 18px;font-size:14px}.kw-btn-lang{padding:8px 14px;border-radius:10px;font-size:13px;color:var(--kw-muted);background:transparent;border-color:transparent}.kw-warn,.kw-error{margin-top:20px;background:var(--kw-amber-bg);border:1px solid rgba(181,71,8,.25);border-radius:var(--kw-r-sm);padding:12px 16px;color:var(--kw-amber);font-size:13px;font-weight:600;text-wrap:pretty}.kw-warn{display:flex;align-items:flex-start;gap:14px}.kw-error{display:block}.kw-error code{display:block;margin-top:6px;font-family:var(--kw-mono);font-weight:400;font-size:12px;color:var(--kw-muted);word-break:break-all}.kw-warn-dot{flex:none;width:8px;height:8px;border-radius:var(--kw-r-pill);background:var(--kw-amber);margin-top:7px}.kw-mono{font-family:var(--kw-mono);font-size:12px;word-break:break-all}.kw-muted{color:var(--kw-muted)}.kw-card-header{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.kw-card-title{font-size:18px;font-weight:700}.kw-panel-title{font-size:15px;font-weight:700;margin-bottom:12px}.kw-panel-body{font-size:13px;text-wrap:pretty}.kw-result{margin-top:16px}.kw-row{display:block;padding:9px 0;border-bottom:1px solid rgba(16,24,40,.08)}.kw-field-label{min-width:96px;display:inline-block}@keyframes kwPulse{0%,to{transform:scale(1);opacity:.9}50%{transform:scale(1.08);opacity:1}}@keyframes kwTravel{0%{left:4%;opacity:0}12%{opacity:1}88%{opacity:1}to{left:92%;opacity:0}}@keyframes kwTravelBack{0%{left:92%;opacity:0}12%{opacity:1}88%{opacity:1}to{left:4%;opacity:0}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}.kw-stepper{display:flex;align-items:center;margin:34px 4px 8px}.kw-step-dot{flex:none;width:30px;height:30px;border-radius:var(--kw-r-pill);display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;border:1px solid rgba(16,24,40,.08);background:var(--kw-neutral-bg);color:var(--kw-neutral)}.kw-step-dot[data-state=current]{background:linear-gradient(180deg,var(--kw-indigo-hi),var(--kw-indigo-lo));border-color:var(--kw-indigo-lo);color:#fff;box-shadow:0 2px 8px #4f46e559}.kw-step-dot[data-state=done]{background:var(--kw-green);border-color:var(--kw-green);color:#fff}.kw-step-label{font-size:13px;font-weight:600;color:var(--kw-faint)}.kw-step-label[data-state=current]{font-weight:700;color:var(--kw-ink)}.kw-step-label[data-state=done]{font-weight:700;color:var(--kw-green)}.kw-step-conn{flex:1;height:2px;margin:0 14px;background:var(--kw-hairline)}.kw-step-conn[data-state=done]{background:#12824e59}.kw-hero{display:flex;gap:36px;align-items:center;flex-wrap:wrap;margin-top:44px}.kw-hero-title{font-size:38px;line-height:1.25;font-weight:700;margin-top:10px;letter-spacing:-.01em;text-wrap:pretty;background:linear-gradient(180deg,var(--kw-ink) 0%,var(--kw-ink-soft) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}@media(forced-colors:active){.kw-hero-title{background:none;-webkit-text-fill-color:currentColor}}.kw-hero-eyebrow{color:var(--kw-indigo);font-weight:700;font-size:13px;letter-spacing:.08em}.kw-hero-diagram{flex:1 1 340px;min-width:300px;display:flex;justify-content:center}.kw-hero-card{position:relative;width:100%;max-width:420px;padding:28px 20px;border-radius:20px;background:var(--kw-glass-strong);backdrop-filter:blur(16px) saturate(1.5);-webkit-backdrop-filter:blur(16px) saturate(1.5);border:1px solid var(--kw-glass-border);box-shadow:var(--kw-shadow-card)}.kw-share-col{text-align:center;width:118px}.kw-share-circle{width:74px;height:74px;margin:0 auto;border-radius:var(--kw-r-pill);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:12px;animation:kwPulse 3.2s ease-in-out infinite}.kw-share-circle[data-share=a]{background:#4f46e51a;border:1px solid rgba(79,70,229,.22);color:var(--kw-indigo)}.kw-share-circle[data-share=b]{background:#12824e1a;border:1px solid rgba(18,130,78,.25);color:var(--kw-green);animation-delay:1.6s}.kw-share-caption{font-size:12px;color:var(--kw-muted);margin-top:8px;font-weight:600}.kw-wire{position:relative;flex:1;height:2px;background:repeating-linear-gradient(90deg,rgba(79,70,229,.4) 0 6px,transparent 6px 12px)}.kw-packet{position:absolute;top:-4px;left:4%;width:10px;height:10px;border-radius:var(--kw-r-pill);background:var(--kw-indigo);box-shadow:0 0 8px #4f46e599}.kw-packet-fwd{animation:kwTravel 2.4s ease-in-out infinite}.kw-packet-back{left:92%;background:var(--kw-green);box-shadow:0 0 8px #12824e80;animation:kwTravelBack 2.4s ease-in-out infinite 1.2s}