.idearu-landing{--bg:#f9fcff;--surface:#fff;--surface-2:#f2f7fc;--ink:#212937;--ink-soft:#5c6471;--ink-faint:#838994;--line:#dce3ea;--line-soft:#ebf0f5;--brand:#2e7ace;--brand-deep:#225caf;--brand-ink:#1f3559;--brand-soft:#e9f5ff;--brand-soft-2:#bbdeff;--sky:#66859a;--sky-soft:#def4ff;--accent:#d98939;--accent-deep:#c36a1e;--accent-ink:#9a4c0b;--accent-soft:#fff2df;--accent-soft-2:#ffd9b1;--ok:#2d956b;--ok-soft:#e4f3eb;--bad:#c04c46;--bad-soft:#ffefeb;--warn:#d3983f;--warn-soft:#fff3df;--warn-ink:#804d18;--radius:16px;--radius-sm:10px;--shadow-sm:0 1px 2px #3e4d690d, 0 2px 6px #3e4d690d;--shadow-md:0 2px 6px #3e4d690f, 0 12px 32px #3e4d6914;--shadow-lg:0 6px 18px #3e4d6917, 0 26px 64px #3e4d691f;--maxw:1120px;--font-jp:var(--font-noto-sans-jp), "Noto Sans JP", system-ui, sans-serif;--font-mono:var(--font-ibm-plex-mono), "IBM Plex Mono", ui-monospace, monospace;font-family:var(--font-jp);background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;letter-spacing:.01em;line-height:1.75;overflow-x:hidden}@supports (color:lab(0% 0 0)){.idearu-landing{--bg:lab(98.8354% -.662476 -2.14629);--surface-2:lab(96.8606% -.985593 -3.21478);--ink:lab(16.3328% -.33775 -10.1843);--ink-soft:lab(41.8963% -.688404 -8.87482);--ink-faint:lab(57.0083% -.624329 -6.70623);--line:lab(89.7757% -1.16527 -4.32916);--line-soft:lab(94.4203% -.883698 -3.25222);--brand:lab(49.7569% -.321984 -51.4736);--brand-deep:lab(39.064% 5.12375 -50.4368);--brand-ink:lab(21.7939% 1.03998 -24.7508);--brand-soft:lab(96.0214% -3.09464 -10.6175);--brand-soft-2:lab(86.9103% -7.00507 -24.0478);--sky:lab(53.631% -6.94281 -15.432);--sky-soft:lab(95.0152% -7.47341 -11.2963);--accent:lab(64.7178% 26.7513 54.2196);--accent-deep:lab(54.6067% 32.6917 54.6944);--accent-ink:lab(41.8377% 30.9382 48.4659);--accent-soft:lab(96.2909% 4.94099 14.6689);--accent-soft-2:lab(89.6748% 12.5216 29.4461);--ok:lab(55.1238% -38.7332 13.4858);--ok-soft:lab(94.4426% -5.92515 1.71908);--bad:lab(48.6527% 46.9674 28.7403);--bad-soft:lab(95.7945% 8.96967 5.50082);--warn:lab(67.4095% 16.8033 53.7116);--warn-soft:lab(96.3644% 3.1406 15.2562);--warn-ink:lab(38.1708% 18.9873 38.8375);--shadow-sm:0 1px 2px lab(32.4393% -.289023 -18.0961/.05), 0 2px 6px lab(32.4393% -.289023 -18.0961/.05);--shadow-md:0 2px 6px lab(32.4393% -.289023 -18.0961/.06), 0 12px 32px lab(32.4393% -.289023 -18.0961/.08);--shadow-lg:0 6px 18px lab(32.4393% -.289023 -18.0961/.09), 0 26px 64px lab(32.4393% -.289023 -18.0961/.12)}}.idearu-landing *{box-sizing:border-box}.idearu-landing h1,.idearu-landing h2,.idearu-landing h3,.idearu-landing h4{letter-spacing:.005em;margin:0;font-weight:700;line-height:1.32}.idearu-landing p{margin:0}.idearu-landing a{color:inherit;text-decoration:none}.idearu-landing .mono{font-family:var(--font-mono);font-feature-settings:"tnum"}.idearu-landing .wrap{width:min(100% - 48px, var(--maxw));margin-inline:auto}.idearu-landing .beta-banner{background:var(--warn-soft);color:var(--warn-ink);border-bottom:1px solid #e9d5b3;border-bottom:1px solid lab(86.1861% 3.56337 19.3888);padding:9px 0;font-size:13px;line-height:1.6}.idearu-landing .beta-banner .wrap{align-items:flex-start;gap:10px;display:flex}.idearu-landing .beta-banner .tag{font-family:var(--font-mono);letter-spacing:.08em;background:var(--warn);color:#fff;border-radius:999px;flex:none;margin-top:1px;padding:2px 9px;font-size:11px;font-weight:600}.idearu-landing .beta-banner strong{color:#6f3600;color:lab(29.855% 23.6799 41.1297);font-weight:700}.idearu-landing header.site{z-index:50;-webkit-backdrop-filter:saturate(160%)blur(14px);backdrop-filter:saturate(160%)blur(14px);background:#fafdffc7;background:lab(99.069% -.443995 -1.43219/.78);border-bottom:1px solid #0000;transition:border-color .25s,box-shadow .25s,background .25s;position:sticky;top:0}.idearu-landing header.site.scrolled{border-bottom-color:var(--line);box-shadow:var(--shadow-sm)}.idearu-landing header.site .wrap{justify-content:space-between;align-items:center;height:68px;display:flex}.idearu-landing .logo{align-items:center;gap:10px;display:flex}.idearu-landing .logo-img{mix-blend-mode:multiply;width:auto;height:30px;display:block}.idearu-landing .nav-actions{align-items:center;gap:8px;display:flex}.idearu-landing .btn{font-family:var(--font-jp);cursor:pointer;white-space:nowrap;border:1px solid #0000;border-radius:12px;justify-content:center;align-items:center;gap:8px;padding:11px 20px;font-size:14.5px;font-weight:700;transition:transform .15s,box-shadow .2s,background .2s,border-color .2s;display:inline-flex}.idearu-landing .btn:active{transform:translateY(1px)}.idearu-landing .btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px #5682bb4d;box-shadow:0 6px 16px lab(53.1266% -3.02443 -34.9673/.3)}.idearu-landing .btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 10px 24px #5682bb61;box-shadow:0 10px 24px lab(53.1266% -3.02443 -34.9673/.38)}.idearu-landing .btn-ghost{color:var(--ink);background:0 0}.idearu-landing .btn-ghost:hover{background:var(--surface-2)}.idearu-landing .btn-outline{background:var(--surface);color:var(--brand-ink);border-color:var(--line)}.idearu-landing .btn-outline:hover{border-color:var(--brand);color:var(--brand-deep)}.idearu-landing .btn-lg{border-radius:12px;padding:15px 30px;font-size:16px}.idearu-landing .btn .arr{font-family:var(--font-mono);transition:transform .2s}.idearu-landing .btn:hover .arr{transform:translate(3px)}.idearu-landing section{position:relative}.idearu-landing .sec-pad{padding:110px 0}.idearu-landing .sec-pad-sm{padding:84px 0}.idearu-landing .eyebrow{font-family:var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--brand);align-items:center;gap:8px;margin-bottom:18px;font-size:12.5px;font-weight:600;display:inline-flex}.idearu-landing .eyebrow:before{content:"";background:var(--brand);width:22px;height:1.5px;display:block}.idearu-landing .sec-title{letter-spacing:.01em;font-size:clamp(28px,4vw,40px)}.idearu-landing .sec-lead{color:var(--ink-soft);max-width:620px;margin-top:18px;font-size:16.5px;font-weight:500}.idearu-landing .center{text-align:center}.idearu-landing .center .eyebrow:before{display:none}.idearu-landing .center .sec-lead{margin-inline:auto}.idearu-landing .hero{padding:78px 0 96px;position:relative}.idearu-landing .hero:before{content:"";z-index:-1;background:radial-gradient(780px 420px at 82% -8%, var(--brand-soft) 0%, transparent 62%), radial-gradient(560px 340px at 98% 14%, var(--accent-soft) 0%, transparent 58%), radial-gradient(680px 400px at 2% 4%, var(--sky-soft) 0%, transparent 58%);position:absolute;inset:0}.idearu-landing .hero-grid{grid-template-columns:1.04fr 1fr;align-items:center;gap:56px;display:grid}.idearu-landing .hero-badge{background:var(--surface);border:1px solid var(--line);color:var(--ink-soft);box-shadow:var(--shadow-sm);border-radius:999px;align-items:center;gap:9px;margin-bottom:26px;padding:7px 8px;font-size:13px;font-weight:700;display:inline-flex}.idearu-landing .hero-badge .pill{font-family:var(--font-mono);letter-spacing:.08em;background:var(--brand);color:#fff;border-radius:999px;padding:2px 9px;font-size:11px;font-weight:600}.idearu-landing h1.hero-title{letter-spacing:.006em;font-size:clamp(32px,4.5vw,56px);line-height:1.24}.idearu-landing h1.hero-title .ln{white-space:nowrap;display:block}.idearu-landing h1.hero-title .accent{color:var(--brand);white-space:nowrap;position:relative}.idearu-landing h1.hero-title .accent-o{color:var(--ink)}.idearu-landing h1.hero-title .accent .uline{background:var(--brand-soft-2);z-index:-1;border-radius:999px;height:.14em;position:absolute;bottom:.02em;left:0;right:0}.idearu-landing .hero-sub{color:var(--ink-soft);max-width:540px;margin-top:26px;font-size:17px;font-weight:500}.idearu-landing .hero-note{color:var(--ink-faint);background:var(--surface-2);border:1px solid var(--line-soft);border-radius:12px;align-items:flex-start;gap:8px;max-width:520px;margin-top:20px;padding:11px 14px;font-size:13px;display:flex}.idearu-landing .hero-note .ic{flex:none;margin-top:2px}.idearu-landing .hero-cta{flex-wrap:wrap;align-items:center;gap:16px;margin-top:32px;display:flex}.idearu-landing .hero-cta .free-note{color:var(--ink-faint);font-size:13px;font-weight:600}.idearu-landing .browser{background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-lg);border-radius:12px;width:100%;overflow:hidden}.idearu-landing .browser-bar{border-bottom:1px solid var(--line-soft);background:var(--surface-2);align-items:center;gap:8px;padding:11px 14px;display:flex}.idearu-landing .dots{gap:6px;display:flex}.idearu-landing .dots i{border-radius:50%;width:11px;height:11px;display:block}.idearu-landing .dots i:first-child{background:#f19e97;background:lab(73.528% 31.0339 17.1258)}.idearu-landing .dots i:nth-child(2){background:#f0c781;background:lab(82.72% 8.74323 40.8395)}.idearu-landing .dots i:nth-child(3){background:#95d7a2;background:lab(80.4199% -29.8207 19.2662)}.idearu-landing .url{background:var(--surface);border:1px solid var(--line);font-family:var(--font-mono);color:var(--ink-faint);white-space:nowrap;border-radius:12px;flex:1;align-items:center;gap:7px;margin-left:8px;padding:5px 12px;font-size:11.5px;display:flex;overflow:hidden}.idearu-landing .url .lock{color:var(--ok)}.idearu-landing .url b{color:var(--ink-soft);font-weight:500}.idearu-landing .app-mock{grid-template-columns:1fr;display:grid}.idearu-landing .app-top{border-bottom:1px solid var(--line-soft);justify-content:space-between;align-items:center;padding:13px 16px;display:flex}.idearu-landing .app-top .ttl{align-items:center;gap:8px;font-size:13px;font-weight:700;display:flex}.idearu-landing .app-top .ttl .d{background:var(--ok);width:7px;height:7px;box-shadow:0 0 0 3px var(--ok-soft);border-radius:50%}.idearu-landing .app-top .stepbadge{font-family:var(--font-mono);color:var(--ink-faint);background:var(--surface-2);white-space:nowrap;border-radius:999px;padding:3px 9px;font-size:11px}.idearu-landing .chat{background:var(--surface);flex-direction:column;gap:11px;padding:16px;display:flex}.idearu-landing .bubble{border-radius:12px;max-width:84%;padding:10px 13px;font-size:12.5px;line-height:1.6}.idearu-landing .bubble.ai{background:var(--surface-2);border:1px solid var(--line-soft);color:var(--ink);border-bottom-left-radius:5px;align-self:flex-start}.idearu-landing .bubble.me{background:var(--brand);color:#fff;border-bottom-right-radius:5px;align-self:flex-end;box-shadow:0 4px 10px #5682bb40;box-shadow:0 4px 10px lab(53.1266% -3.02443 -34.9673/.25)}.idearu-landing .bubble .who{letter-spacing:.08em;opacity:.65;font-size:10px;font-family:var(--font-mono);margin-bottom:3px;display:block}.idearu-landing .typing{background:var(--surface-2);border:1px solid var(--line-soft);border-radius:12px 12px 12px 5px;align-self:flex-start;gap:4px;padding:11px 14px;display:flex}.idearu-landing .typing i{background:var(--ink-faint);border-radius:50%;width:6px;height:6px;animation:1.4s infinite both idearu-blink}.idearu-landing .typing i:nth-child(2){animation-delay:.2s}.idearu-landing .typing i:nth-child(3){animation-delay:.4s}@keyframes idearu-blink{0%,60%,to{opacity:.25;transform:translateY(0)}30%{opacity:1;transform:translateY(-2px)}}.idearu-landing .chat-input{border-top:1px solid var(--line-soft);align-items:center;gap:8px;padding:12px 16px;display:flex}.idearu-landing .chat-input .field{background:var(--surface-2);border:1px solid var(--line);color:var(--ink-faint);border-radius:12px;flex:1;padding:9px 13px;font-size:12px}.idearu-landing .chat-input .send{background:var(--brand);color:#fff;border-radius:12px;flex:none;place-items:center;width:34px;height:34px;display:grid}.idearu-landing .float-card{background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-md);border-radius:12px;align-items:center;gap:11px;padding:13px 15px;font-size:12.5px;display:flex;position:absolute}.idearu-landing .float-card .ic{border-radius:12px;flex:none;place-items:center;width:36px;height:36px;font-size:17px;display:grid}.idearu-landing .float-card .k{font-size:13px;font-weight:700}.idearu-landing .float-card .v{color:var(--ink-faint);font-size:11.5px}.idearu-landing .float-spec{top:-26px;right:-26px}.idearu-landing .float-spec .ic{background:var(--brand-soft);color:var(--brand)}.idearu-landing .float-deploy{bottom:-24px;left:-30px}.idearu-landing .float-deploy .ic{background:var(--ok-soft);color:var(--ok)}.idearu-landing .hero-mock-wrap{position:relative}.idearu-landing .free-chip{background:var(--ok-soft);color:#005c3d;color:lab(34.0375% -34.1062 11.8107);border:1px solid #b5e4cc;border:1px solid lab(86.8876% -19.6432 6.92221);border-radius:999px;align-items:center;gap:8px;margin-top:20px;padding:8px 16px;font-size:13.5px;font-weight:700;display:inline-flex}.idearu-landing .steps{grid-template-columns:repeat(3,1fr);gap:24px;margin-top:56px;display:grid;position:relative}.idearu-landing .step{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:30px 28px;transition:transform .25s,box-shadow .25s,border-color .25s;position:relative}.idearu-landing .step:hover{box-shadow:var(--shadow-md);border-color:var(--brand-soft-2);transform:translateY(-5px)}.idearu-landing .step .num{font-family:var(--font-mono);background:var(--brand-soft);width:46px;height:46px;color:var(--brand);border-radius:12px;place-items:center;margin-bottom:20px;font-size:18px;font-weight:700;display:grid}.idearu-landing .step h3{margin-bottom:10px;font-size:19px}.idearu-landing .step p{color:var(--ink-soft);font-size:14.5px;font-weight:500}.idearu-landing .step .line-ic{color:var(--line);z-index:2;position:absolute;top:48px;right:-30px}@media (max-width:880px){.idearu-landing .step .line-ic{display:none}}.idearu-landing .period{background:var(--surface-2)}.idearu-landing .period-grid{grid-template-columns:.9fr 1.1fr;align-items:start;gap:48px;display:grid}.idearu-landing .callout{border-radius:var(--radius);border:1px solid;align-items:flex-start;gap:14px;margin-bottom:16px;padding:22px 24px;display:flex}.idearu-landing .callout .badge{width:30px;height:30px;font-weight:700;font-family:var(--font-mono);border-radius:12px;flex:none;place-items:center;margin-top:1px;display:grid}.idearu-landing .callout .ttl{margin-bottom:4px;font-size:15.5px;font-weight:700}.idearu-landing .callout .body{color:var(--ink-soft);font-size:14px;font-weight:500}.idearu-landing .callout .body b{color:var(--ink)}.idearu-landing .callout.bad{background:var(--bad-soft);border-color:#fed2cb;border-color:lab(87.9771% 14.762 9.84361)}.idearu-landing .callout.bad .badge{background:var(--bad);color:#fff}.idearu-landing .callout.bad .ttl{color:#8d453f;color:lab(38.7184% 31.136 18.4963)}.idearu-landing .callout.ok{background:var(--ok-soft);border-color:#b5e4cc;border-color:lab(86.8876% -19.6432 6.92221)}.idearu-landing .callout.ok .badge{background:var(--ok);color:#fff}.idearu-landing .callout.ok .ttl{color:#005738;color:lab(31.7156% -34.2228 11.8335)}.idearu-landing .period-side{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:30px;position:sticky;top:96px}.idearu-landing .timeline{margin-top:22px;padding-left:26px;position:relative}.idearu-landing .timeline:before{content:"";background:var(--brand);border-radius:8px;width:2px;position:absolute;top:6px;bottom:6px;left:7px}.idearu-landing .tl-item{padding-bottom:22px;position:relative}.idearu-landing .tl-item:last-child{padding-bottom:0}.idearu-landing .tl-item .dot{background:var(--surface);border:3px solid var(--brand);border-radius:50%;width:16px;height:16px;position:absolute;top:3px;left:-26px}.idearu-landing .tl-item .when{font-family:var(--font-mono);color:var(--brand);letter-spacing:.04em;font-size:11px;font-weight:600}.idearu-landing .tl-item .what{margin-top:2px;font-size:14px;font-weight:600}.idearu-landing .tl-item .desc{color:var(--ink-faint);margin-top:2px;font-size:12.5px}.idearu-landing .ext-box{border-top:1px dashed var(--line);justify-content:space-between;align-items:center;gap:12px;margin-top:24px;padding-top:22px;display:flex}.idearu-landing .ext-box .lbl{color:var(--ink-soft);font-size:13px;font-weight:600}.idearu-landing .ext-box .price{font-family:var(--font-mono);color:var(--brand-deep);font-size:19px;font-weight:700}.idearu-landing .ext-box .price small{color:var(--ink-faint);font-size:11px;font-weight:500}.idearu-landing .features{grid-template-columns:repeat(3,1fr);gap:22px;margin-top:54px;display:grid}.idearu-landing .feature{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:28px 26px;transition:transform .25s,box-shadow .25s,border-color .25s}.idearu-landing .feature:hover{box-shadow:var(--shadow-md);border-color:var(--brand-soft-2);transform:translateY(-4px)}.idearu-landing .feature .ic{background:var(--brand-soft);width:48px;height:48px;color:var(--brand);border-radius:12px;place-items:center;margin-bottom:18px;display:grid}.idearu-landing .feature h3{margin-bottom:9px;font-size:17.5px}.idearu-landing .feature p{color:var(--ink-soft);font-size:14px;font-weight:500}.idearu-landing .feature .tag{font-family:var(--font-mono);color:var(--brand);background:var(--brand-soft);border-radius:8px;margin-top:14px;padding:2px 9px;font-size:11px;font-weight:600;display:inline-block}.idearu-landing .usecases{background:var(--surface-2)}.idearu-landing .uc-grid{grid-template-columns:repeat(3,1fr);gap:24px;margin-top:52px;display:grid}.idearu-landing .uc{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);flex-direction:column;transition:transform .25s,box-shadow .25s;display:flex;overflow:hidden}.idearu-landing .uc:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}.idearu-landing .uc-shot{border-bottom:1px 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