:root{--ink:#141410;--ink-2:#22221C;--lime:#AACB3E;--lime-deep:#7C9A28;--lime-pale:#E7F0C6;--paper:#FAFAF6;--white:#FFFFFF;--text:#1B1C16;--text-soft:#63665C;--line:#E4E2D8;--radius:18px;--maxw:1200px}*{box-sizing:border-box}html{scroll-behavior:smooth}@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}*{animation-duration:0.001ms !important;transition-duration:0.001ms !important}}body{margin:0;font-family:'Noto Sans JP', sans-serif;color:var(--text);background:var(--paper);line-height:1.75;-webkit-font-smoothing:antialiased}h1,h2,h3,h4{font-family:'Zen Kaku Gothic New', sans-serif;margin:0;color:var(--ink);line-height:1.45;font-weight:700}a{color:inherit;text-decoration:none}.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}.eyebrow{font-family:'JetBrains Mono', monospace;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--lime-deep);display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;font-weight:600}.eyebrow::before{content:"";width:22px;height:2px;background:var(--lime)}img,svg{display:block}button{font-family:inherit}header{position:sticky;top:0;z-index:50;background:rgba(250,250,246,0.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;height:76px}.logo{font-family:'Zen Kaku Gothic New', sans-serif;font-size:21px;font-weight:900;color:var(--ink);display:flex;align-items:center;gap:10px;letter-spacing:-.01em}.logo .mark{width:32px;height:32px;border-radius:50%;background:var(--ink);position:relative;flex-shrink:0}.logo .mark::after{content:"K";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--lime);font-size:16px;font-weight:900}.nav-links{display:flex;align-items:center;gap:34px;font-size:14px;font-weight:500}.nav-links a{color:var(--text-soft);position:relative;padding:4px 0;transition:color .2s ease}.nav-links a:hover{color:var(--ink)}.nav-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--lime);transition:width .25s ease}.nav-links a:hover::after{width:100%}.nav-actions{display:flex;align-items:center;gap:20px}.login-link{font-size:12.5px;color:var(--text-soft);font-family:'JetBrains Mono',monospace}.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 26px;border-radius:100px;font-size:14.5px;font-weight:700;cursor:pointer;border:none;transition:transform .2s ease, box-shadow .2s ease, background .2s ease}.btn-primary{background:var(--ink);color:#fff}.btn-primary:hover{background:var(--ink-2);transform:translateY(-1px)}.btn-lime{background:var(--lime);color:var(--ink)}.btn-lime:hover{background:#BFDB5C;transform:translateY(-1px);box-shadow:0 10px 24px rgba(170,203,62,0.4)}.btn-outline{background:transparent;color:var(--ink);border:1.5px solid var(--line)}.btn-outline:hover{border-color:var(--ink)}.btn-outline.on-dark{color:#fff;border-color:rgba(255,255,255,0.35)}.btn-outline.on-dark:hover{border-color:#fff}.menu-toggle{display:none;background:none;border:none;cursor:pointer}.nav-mobile-only{display:none}.menu-toggle span{display:block;width:22px;height:2px;background:var(--ink);margin:5px 0}.hero{background:var(--ink);color:#fff;padding:110px 0 90px;position:relative;overflow:hidden}.hero-noise{position:absolute;inset:0;opacity:.5;background-image:radial-gradient(circle at 82% 18%, rgba(170,203,62,0.16), transparent 45%),radial-gradient(circle at 10% 90%, rgba(170,203,62,0.08), transparent 40%)}.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:center;position:relative;z-index:2}.hero .eyebrow{color:var(--lime)}.hero .eyebrow::before{background:var(--lime)}.hero h1{color:#fff;font-size:clamp(32px, 4.4vw, 52px);font-weight:900;letter-spacing:-.01em}.hero h1 span{color:var(--lime)}.hero p.lead{margin-top:22px;font-size:16.5px;color:#B7BBAE;max-width:500px}.hero-ctas{display:flex;gap:14px;margin-top:36px;flex-wrap:wrap}.hero-stats{display:flex;gap:34px;margin-top:52px;border-top:1px solid rgba(255,255,255,0.14);padding-top:24px}.hero-stats div b{display:block;font-family:'Zen Kaku Gothic New',sans-serif;font-weight:900;font-size:24px;color:var(--lime)}.hero-stats div span{font-size:12px;color:#9A9E90}.key-visual{position:relative;height:380px}.tag{width:230px;padding:0;position:absolute;left:50%;top:50%;transform:translate(-64%, -58%) rotate(-6deg)}.tag .disc{width:230px;height:230px;border-radius:50%;background:radial-gradient(circle at 35% 30%, #1F1F18, #0D0D09 70%);border:2px solid var(--lime);display:flex;flex-direction:column;align-items:center;justify-content:center;box-shadow:0 30px 60px rgba(0,0,0,0.5)}.tag .disc .ring{width:30px;height:30px;border-radius:50%;border:4px solid var(--lime);margin-bottom:10px}.tag .disc b{color:#fff;font-family:'Zen Kaku Gothic New',sans-serif;font-size:18px;letter-spacing:.06em}.tag .disc span{color:var(--lime);font-family:'JetBrains Mono',monospace;font-size:11px;margin-top:4px}.tag2{position:absolute;right:0;bottom:6%;width:180px;padding:22px;background:var(--ink-2);border:1px solid rgba(170,203,62,0.3);border-radius:16px;transform:rotate(8deg);box-shadow:0 24px 50px rgba(0,0,0,0.4)}.tag2 .dot{width:9px;height:9px;border-radius:50%;background:var(--lime);margin-bottom:14px}.tag2 p{margin:0;font-size:11.5px;color:#C7CBB9;font-family:'JetBrains Mono',monospace;line-height:1.6}.tag2 strong{color:#fff;display:block;font-size:13px;margin-bottom:6px;font-family:'Noto Sans JP',sans-serif}section{padding:96px 0}.section-head{max-width:640px;margin-bottom:52px}.section-head h2{font-size:clamp(26px, 3vw, 36px)}.section-head p{margin-top:16px;color:var(--text-soft);font-size:15px}.band-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.purpose-grid{display:grid;grid-template-columns:repeat(3, 1fr);gap:26px}.keytag-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:36px 28px 30px;position:relative;display:flex;flex-direction:column;transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease}.keytag-card:hover{transform:translateY(-6px);box-shadow:0 26px 50px rgba(20,20,16,0.08);border-color:var(--lime)}.punch{position:absolute;top:26px;right:26px;width:34px;height:34px;border-radius:50%;background:var(--ink)}.punch::after{content:"";position:absolute;inset:11px;border-radius:50%;background:var(--lime)}.keytag-card .no{font-family:'JetBrains Mono', monospace;font-size:12px;color:var(--lime-deep);letter-spacing:.08em;font-weight:600}.keytag-card h3{font-size:21px;margin-top:14px;padding-right:36px}.keytag-card .desc{color:var(--text-soft);font-size:13.5px;margin-top:6px}.keytag-card ul{list-style:none;padding:0;margin:20px 0 0;border-top:1px dashed var(--line);padding-top:18px;flex:1 1 auto}.keytag-card li{font-size:13.6px;color:var(--text);padding:6px 0 6px 20px;position:relative}.keytag-card li::before{content:"";position:absolute;left:0;top:14px;width:9px;height:2px;background:var(--lime-deep)}.keytag-card .btn{margin-top:24px;width:100%;justify-content:center}.case-tabs{display:flex;gap:8px;margin-bottom:32px;flex-wrap:wrap}.case-tab{font-family:'Zen Kaku Gothic New',sans-serif;font-size:14px;font-weight:700;color:var(--text-soft);background:#fff;border:1px solid var(--line);border-radius:30px;padding:10px 22px;cursor:pointer;transition:background .15s ease, color .15s ease, border-color .15s ease}.case-tab:hover{border-color:var(--lime-deep);color:var(--ink)}.case-tab.active{background:var(--ink);border-color:var(--ink);color:var(--lime)}.modal-overlay{display:none;position:fixed;inset:0;background:rgba(20,20,16,0.62);z-index:200;align-items:center;justify-content:center;padding:24px}.modal-overlay.open{display:flex}.modal-box{background:#fff;border-radius:var(--radius);max-width:640px;width:100%;max-height:88vh;overflow-y:auto;position:relative;box-shadow:0 24px 60px rgba(20,20,16,0.25)}.modal-close{position:absolute;top:16px;right:16px;width:36px;height:36px;border-radius:50%;border:1px solid var(--line);background:#fff;font-size:16px;line-height:1;color:var(--text);cursor:pointer;z-index:2;display:flex;align-items:center;justify-content:center}.modal-close:hover{border-color:var(--lime-deep);color:var(--lime-deep)}.modal-thumb{height:140px;background:var(--ink);color:var(--lime);display:flex;align-items:center;justify-content:center;font-family:'JetBrains Mono',monospace;font-weight:700;letter-spacing:.06em;font-size:18px;border-radius:var(--radius) var(--radius) 0 0;position:relative;overflow:hidden}.modal-body{padding:26px 28px 32px}.modal-body .tagname{font-size:11.5px;color:var(--lime-deep);font-family:'JetBrains Mono',monospace;letter-spacing:.06em;font-weight:600}.modal-body h3{font-size:20px;margin-top:8px}.modal-section{margin-top:22px}.modal-section h5{font-size:12px;color:var(--text-soft);font-weight:700;margin-bottom:6px;letter-spacing:.03em}.modal-section p{font-size:14px;color:var(--text);line-height:1.85}.voice-block{padding-top:20px;border-top:1px dashed var(--line)}.voice-block .voice-quote{font-style:italic;color:var(--ink)}.voice-block .voice-role{margin-top:8px;font-size:12.5px;color:var(--text-soft);font-style:normal}@media (max-width: 720px){.modal-overlay{padding:0}.modal-box{max-width:none;width:100%;height:100%;max-height:100%;border-radius:0}.modal-thumb{border-radius:0}}.case-grid{display:grid;grid-template-columns:repeat(3, 1fr);gap:24px}.case-card[hidden]{display:none}.case-card{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:#fff}.case-thumb{height:150px;background:var(--ink);display:flex;align-items:center;justify-content:center;color:var(--lime);font-family:'JetBrains Mono',monospace;font-size:12.5px;letter-spacing:.08em;font-weight:600;position:relative;overflow:hidden}.case-thumb::before{content:"";position:absolute;width:140px;height:140px;border-radius:50%;border:1.5px solid rgba(170,203,62,0.3);right:-40px;top:-40px}.case-thumb.photo,.modal-thumb.photo{padding:0;background:#000}.case-thumb.photo::before{display:none}.case-thumb img,.modal-thumb img{width:100%;height:100%;object-fit:cover;display:block}.case-body{padding:24px 24px 26px}.case-body .tagname{font-size:11.5px;color:var(--lime-deep);font-family:'JetBrains Mono',monospace;letter-spacing:.06em;font-weight:600}.case-body h4{font-size:17px;margin-top:8px}.case-body p{font-size:13.6px;color:var(--text-soft);margin-top:10px}.case-body a{display:inline-block;margin-top:16px;font-size:13px;font-weight:700;color:var(--ink);border-bottom:2px solid var(--lime);padding-bottom:2px}.voice-quote{font-size:14px;color:var(--text);line-height:1.85}.voice-role{font-size:12.5px;color:var(--text-soft)}.flow-tabs{display:flex;gap:8px;margin-bottom:32px;flex-wrap:wrap}.flow-tab{font-family:'Zen Kaku Gothic New',sans-serif;font-size:14px;font-weight:700;color:var(--text-soft);background:#fff;border:1px solid var(--line);border-radius:30px;padding:10px 22px;cursor:pointer;transition:background .15s ease, color .15s ease, border-color .15s ease}.flow-tab:hover{border-color:var(--lime-deep);color:var(--ink)}.flow-tab.active{background:var(--ink);border-color:var(--ink);color:var(--lime)}.flow-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:0}.flow-grid.cols-3{grid-template-columns:repeat(3, 1fr)}.flow-step{position:relative;padding:0 18px 0 0}.flow-step:not(:last-child)::after{content:"→";position:absolute;right:-2px;top:26px;color:var(--line);font-size:18px}.flow-num{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:50%;background:var(--ink);color:var(--lime);font-family:'JetBrains Mono',monospace;font-weight:700;font-size:14px;margin-bottom:20px}.flow-step h4{font-size:16.5px}.flow-step p{font-size:13.3px;color:var(--text-soft);margin-top:8px;padding-right:20px}.price-grid{display:grid;grid-template-columns:repeat(3, 1fr);gap:24px}.price-card{border:1px solid var(--line);border-radius:var(--radius);padding:32px 26px;background:#fff;display:flex;flex-direction:column}.price-card.highlight{border-color:var(--lime);background:linear-gradient(180deg, #fff, var(--lime-pale));box-shadow:0 20px 45px rgba(170,203,62,0.18)}.price-card .tagname{font-size:11.5px;color:var(--lime-deep);font-family:'JetBrains Mono',monospace;letter-spacing:.06em;font-weight:600}.price-card h4{font-size:18.5px;margin-top:10px}.price-card .figure{margin-top:14px;display:flex;align-items:baseline;gap:6px;flex-wrap:wrap}.price-card .figure b{font-family:'Zen Kaku Gothic New',sans-serif;font-size:23px;font-weight:900}.price-card .figure span{font-size:12.5px;color:var(--text-soft)}.price-card .figure-group{margin-top:14px;display:flex;flex-direction:column;gap:12px}.price-card .figure-row{display:flex;align-items:baseline;justify-content:space-between;gap:10px;flex-wrap:wrap;padding-bottom:12px;border-bottom:1px dashed var(--line)}.price-card .figure-row:last-child{border-bottom:none;padding-bottom:0}.price-card .figure-label{font-size:12.5px;color:var(--text-soft);font-weight:600}.price-card .figure-row .figure{margin-top:0}.price-card .note{font-size:13px;color:var(--text-soft);margin-top:10px;flex-grow:1}.price-card ul{list-style:none;padding:0;margin:18px 0 0;border-top:1px solid var(--line);padding-top:16px}.price-card li{font-size:13.2px;padding:5px 0 5px 18px;position:relative;color:var(--text)}.price-card li::before{content:"—";position:absolute;left:0;color:var(--lime-deep)}.price-card .btn{margin-top:22px;width:100%;justify-content:center}.price-card .billing-mini{margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);font-size:12px;color:var(--text-soft);display:flex;flex-direction:column;gap:6px}.price-card .billing-mini b{display:block;color:var(--ink);font-weight:700;font-size:11.5px;margin-bottom:1px}.download-grid{display:grid;grid-template-columns:repeat(3, 1fr);gap:24px}.download-card{border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;background:#fff;display:flex;flex-direction:column}.download-card .tagname{font-size:11.5px;color:var(--lime-deep);font-family:'JetBrains Mono',monospace;letter-spacing:.06em;font-weight:600}.download-card h4{font-size:18px;margin-top:10px}.download-card p.note{font-size:13px;color:var(--text-soft);margin-top:10px;flex-grow:1}.download-card .file-meta{display:flex;align-items:center;gap:8px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-family:'JetBrains Mono',monospace;font-size:11.5px;color:var(--text-soft)}.download-card .file-meta .file-icon{width:20px;height:20px;border-radius:4px;background:var(--ink);color:var(--lime);display:flex;align-items:center;justify-content:center;font-size:9px;font-weight:700;flex-shrink:0}.download-card .btn{margin-top:18px;width:100%;justify-content:center}.download-subhead{font-size:16px;font-weight:800;color:var(--ink);margin:8px 0 14px}.download-grid+.download-subhead{margin-top:40px}.download-subnote{font-size:12.5px;color:var(--text-soft);margin:-6px 0 14px}.usage-toggle{display:flex;align-items:center;justify-content:space-between;gap:8px;width:100%;margin-top:16px;padding:11px 14px;border:1px solid var(--line);border-radius:10px;background:var(--paper);color:var(--ink);font-size:13.2px;font-weight:700;cursor:pointer}.usage-toggle:hover{border-color:var(--lime-deep)}.usage-caret{transition:transform .25s ease;color:var(--lime-deep)}.usage-toggle.open .usage-caret{transform:rotate(180deg)}.usage-body{max-height:0;overflow:hidden;transition:max-height .3s ease}.usage-body h5{font-size:12.5px;color:var(--text-soft);font-weight:700;margin:16px 0 6px;letter-spacing:.02em}.usage-steps{margin:0;padding-left:20px;font-size:13.2px;color:var(--text);line-height:1.85}.usage-steps li{margin:3px 0}.usage-price{margin:0;padding-left:18px;font-size:13.4px;color:var(--ink);font-weight:700}.usage-price li{margin:2px 0}.usage-caution{font-size:12px;color:var(--text-soft);margin:8px 0 0}.faq-tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:32px}.faq-tab{padding:10px 18px;border-radius:100px;border:1px solid var(--line);background:#fff;font-size:13px;font-weight:600;color:var(--text-soft);cursor:pointer;transition:all .2s ease}.faq-tab.active{background:var(--ink);color:var(--lime);border-color:var(--ink)}.faq-group{display:none}.faq-group.active{display:block}.faq-item{border-bottom:1px solid var(--line)}.faq-q{width:100%;text-align:left;background:none;border:none;padding:20px 4px;display:flex;justify-content:space-between;align-items:center;cursor:pointer;font-size:15px;font-weight:600;color:var(--ink);gap:20px}.faq-q .plus{width:22px;height:22px;border-radius:50%;border:1.5px solid var(--lime-deep);position:relative;flex-shrink:0}.faq-q .plus::before,.faq-q .plus::after{content:"";position:absolute;background:var(--lime-deep);top:50%;left:50%;transform:translate(-50%, -50%)}.faq-q .plus::before{width:9px;height:1.6px}.faq-q .plus::after{width:1.6px;height:9px;transition:transform .25s ease}.faq-item.open .plus::after{transform:translate(-50%, -50%) rotate(90deg) scaleY(0)}.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}.faq-a p{padding:0 4px 20px;font-size:13.8px;color:var(--text-soft);margin:0;max-width:640px}.faq-a .faq-list{margin:0;padding:0 4px 20px 24px;font-size:13.8px;color:var(--text-soft);max-width:640px}.faq-a .faq-list li{margin:2px 0}.faq-a .faq-note{font-size:12.5px;color:var(--text-soft)}.final-cta{background:var(--ink);color:#fff;border-radius:26px;padding:60px 54px;display:flex;justify-content:space-between;align-items:center;gap:40px;flex-wrap:wrap;position:relative;overflow:hidden}.final-cta::before{content:"";position:absolute;width:280px;height:280px;border-radius:50%;border:1.5px solid rgba(170,203,62,0.25);right:-80px;top:-100px}.final-cta h2{color:#fff;font-size:28px;max-width:460px;position:relative;z-index:1}.final-cta .actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}footer{background:var(--ink);color:#9EA290;padding:64px 0 28px;margin-top:60px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:42px;border-bottom:1px solid rgba(255,255,255,0.1)}.footer-brand .logo{color:#fff}.footer-brand .logo .mark{background:var(--lime)}.footer-brand .logo .mark::after{content:"K";color:var(--ink)}.footer-brand p{font-size:13px;margin-top:16px;max-width:280px;color:#83876F}footer h5{font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.1em;color:var(--lime);text-transform:uppercase;margin-bottom:18px}footer ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}footer a{font-size:13.5px;color:#9EA290;transition:color .2s ease}footer a:hover{color:#fff}.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:22px;font-size:12px;color:#6E7160;flex-wrap:wrap;gap:10px}.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease, transform .6s ease}.reveal.in{opacity:1;transform:none}@media (max-width: 960px){.hero-grid{grid-template-columns:1fr}.key-visual{height:300px;margin-top:10px}.purpose-grid,.case-grid,.price-grid,.download-grid{grid-template-columns:1fr}.flow-grid{grid-template-columns:1fr 1fr;row-gap:36px}.flow-step:nth-child(2)::after{display:none}.footer-grid{grid-template-columns:1fr 1fr}}@media (max-width: 720px){.nav-links,.nav-actions .login-link{display:none}.menu-toggle{display:block}.nav{position:relative}header.nav-open .nav-links{display:flex;flex-direction:column;align-items:stretch;gap:0;position:absolute;top:100%;left:0;right:0;background:rgba(250,250,246,0.98);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);padding:6px 24px 16px;box-shadow:0 14px 28px rgba(20,20,16,0.1)}header.nav-open .nav-links a{padding:15px 2px;border-top:1px solid var(--line);font-size:15px;color:var(--ink)}header.nav-open .nav-links a:first-child{border-top:none}header.nav-open .nav-links a::after{display:none}header.nav-open .nav-links .nav-mobile-only{display:block;color:var(--text-soft);font-family:'JetBrains Mono',monospace;font-size:13px}.hero{padding:80px 0 60px}.final-cta{padding:40px 28px;flex-direction:column;align-items:flex-start}.footer-grid{grid-template-columns:1fr}.flow-grid,.flow-grid.cols-3{grid-template-columns:1fr;row-gap:28px}.flow-step{padding-right:0}.flow-step:not(:last-child)::after{display:none}section{padding:64px 0}}:focus-visible{outline:2px solid var(--lime-deep);outline-offset:2px}