:root{--ink:#0d1730;--muted:#62708b;--blue:#1659c7;--blue2:#3478df;--navy:#082d73;--pale:#eef4ff;--pale2:#f7f9fd;--line:#dce6f5;--white:#fff;--green:#187247;--red:#b34b54;--shadow:0 22px 60px rgba(16,52,115,.12);--hover:0 16px 38px rgba(23,89,199,.15)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP","Noto Sans SC","Noto Sans KR",Arial,sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.shell{width:min(1160px,calc(100% - 36px));margin:auto}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,230,245,.95)}.header-inner{height:74px;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:10px;font-weight:900;white-space:nowrap}.brand:before{content:"KF";width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,var(--navy),var(--blue2));color:#fff;font-size:11px;box-shadow:0 9px 24px rgba(23,89,199,.2)}.brand span{font-size:17px}.brand small{font-size:10px;color:#7b879d;font-weight:700;letter-spacing:.02em}.main-nav{margin-left:auto;display:flex;align-items:center;gap:22px}.main-nav a{font-size:13px;font-weight:800;color:#3e4a63;position:relative;padding:27px 2px;transition:.2s}.main-nav a:after{content:"";position:absolute;left:50%;right:50%;bottom:17px;height:2px;border-radius:3px;background:var(--blue);transition:.22s}.main-nav a:hover,.main-nav a.active{color:var(--navy)}.main-nav a:hover:after,.main-nav a.active:after{left:0;right:0}.header-actions{display:flex;align-items:center;gap:10px}.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line);border-radius:999px;padding:12px 19px;font-size:13px;font-weight:850;cursor:pointer;transition:.2s;background:#fff;color:var(--navy)}.button:hover,.button:focus-visible{transform:translateY(-1px);box-shadow:0 9px 24px rgba(23,89,199,.14);border-color:#b6cbed;outline:none}.button.dark{border-color:transparent;background:linear-gradient(135deg,var(--navy),var(--blue));color:#fff;box-shadow:0 10px 25px rgba(23,89,199,.22)}.button.dark:hover{box-shadow:0 14px 32px rgba(23,89,199,.3)}.button.light{background:#fff}.button.disabled{pointer-events:none;opacity:.45}.mobile-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;color:var(--navy);font-size:22px;width:42px;height:42px;cursor:pointer}.page-hero{padding:88px 0 72px;background:radial-gradient(circle at 82% 18%,rgba(57,119,226,.15),transparent 30%),linear-gradient(#fff,#f8faff);border-bottom:1px solid #edf1f7;overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:58px;align-items:center}.eyebrow{display:inline-flex;align-items:center;background:var(--pale);color:var(--navy);padding:7px 12px;border-radius:999px;font-size:12px;font-weight:850;letter-spacing:.04em;margin-bottom:20px}.display{font-size:clamp(44px,6.2vw,72px);line-height:1.06;font-weight:900;letter-spacing:-.045em;color:var(--ink);margin:0}.lede{max-width:760px;color:#4f5d78;font-size:18px;margin:24px 0 0}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.strength-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.strength-row span,.made-japan{display:inline-flex;align-items:center;background:#fff;border:1px solid #cbdaf2;border-radius:999px;padding:9px 14px;color:var(--navy);font-size:12px;font-weight:900;box-shadow:0 8px 22px rgba(16,52,115,.06)}.hero-illustration{background:#fff;border:1px solid var(--line);border-radius:26px;padding:18px;box-shadow:var(--shadow)}.product-visual{position:relative}.software-window{border:1px solid #cbd8eb;border-radius:15px;background:#fff;overflow:hidden;box-shadow:0 10px 28px rgba(23,89,199,.1)}.software-window.large{min-height:340px}.software-top{height:40px;background:linear-gradient(90deg,var(--navy),var(--blue));display:flex;align-items:center;gap:6px;padding:0 12px;color:#fff}.software-top i{width:7px;height:7px;border-radius:50%;background:#d7e5fb}.software-top b{margin-left:auto;font-size:11px;letter-spacing:.06em}.software-body{padding:22px}.software-kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:18px}.software-kpis i{height:64px;background:var(--pale);border-radius:10px;border-top:4px solid var(--blue)}.software-table{display:grid;gap:9px}.software-table i{height:24px;border-radius:6px;background:#e8eef8}.visual-badge{position:absolute;right:32px;bottom:30px;background:#fff;border:1px solid #bfd1ed;color:var(--navy);padding:8px 13px;border-radius:999px;font-size:11px;font-weight:900;box-shadow:0 8px 22px rgba(16,52,115,.1)}.section{padding:88px 0}.section.white{background:#fff}.section:nth-of-type(even):not(.dark){background:var(--pale2)}.section.dark{background:linear-gradient(135deg,#071e4c,#0b3b83);color:#fff}.section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:38px}.section-title{font-weight:900;font-size:clamp(32px,4.5vw,48px);line-height:1.15;letter-spacing:-.035em;color:var(--ink);margin:0}.dark .section-title{color:#fff}.section-kicker{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--blue);font-weight:900;margin-bottom:8px}.dark .section-kicker{color:#89b8ff}.section-copy{max-width:540px;color:var(--muted);margin:0}.dark .section-copy{color:#c6d5ed}.service-table-wrap{border:1px solid var(--line);border-radius:20px;overflow-x:auto;background:#fff;box-shadow:0 10px 30px rgba(16,52,115,.05)}.service-table{width:100%;border-collapse:collapse;min-width:760px}.service-table th,.service-table td{padding:19px 18px;border-bottom:1px solid #edf1f7;text-align:center;font-size:14px}.service-table th:first-child,.service-table td:first-child{text-align:left}.service-table th{font-size:11px;letter-spacing:.05em;text-transform:uppercase;color:#65718a;background:#f8faff}.service-table tr:last-child td{border-bottom:0}.service-table tr:hover td{background:#fbfdff}.yes{font-size:24px;color:var(--green);font-weight:900}.no{color:#a9b1be}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.step{padding:24px;background:#fff;border:1px solid var(--line);border-radius:18px;min-height:220px;transition:.2s}.step:hover{transform:translateY(-3px);box-shadow:var(--hover);border-color:#bfd1ed}.step .n,.editorial-card .num{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:12px;background:var(--pale);color:var(--blue);font-size:12px;font-weight:900}.step h3{font-size:18px;margin:34px 0 7px}.step p{color:var(--muted);font-size:13px}.security-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.security-grid article{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:18px;padding:28px;transition:.2s}.security-grid article:hover{background:rgba(255,255,255,.1);transform:translateY(-2px)}.security-grid h3{font-size:19px;margin:0 0 12px}.security-grid p{color:#c7d5ea;font-size:14px;margin:0}.demo-box{border:1px solid var(--line);border-radius:22px;overflow:hidden;display:grid;grid-template-columns:1.1fr .9fr;background:#fff;box-shadow:0 14px 40px rgba(16,52,115,.06)}.demo-main{padding:34px}.demo-meta{background:var(--pale2);padding:34px;border-left:1px solid var(--line)}.meta-row{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--line);font-size:13px}.changelog{margin-top:18px}.changelog summary{cursor:pointer;font-size:13px;font-weight:850;color:var(--navy)}.changelog article{border-left:3px solid var(--blue);padding:8px 0 8px 16px;margin-top:14px;background:#fff}.editorial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.editorial-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:27px;min-height:260px;box-shadow:0 10px 28px rgba(16,52,115,.045);transition:.2s}.editorial-card:hover{transform:translateY(-3px);box-shadow:var(--hover);border-color:#bfd1ed}.editorial-card h3{font-size:21px;line-height:1.4;margin:34px 0 10px}.editorial-card p{color:var(--muted);font-size:14px}.about-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:58px}.principles{border-top:1px solid var(--line)}.principle{display:grid;grid-template-columns:70px 1fr;padding:23px 0;border-bottom:1px solid var(--line)}.principle .n{color:var(--blue);font-weight:900}.principle h3{margin:0 0 5px;font-size:18px}.principle p{margin:0;color:var(--muted);font-size:14px}.feature-band{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.16);border-radius:24px;overflow:hidden}.feature-band article{padding:34px 30px;min-height:220px;background:rgba(255,255,255,.05)}.feature-number{color:#89b8ff;font-size:12px;font-weight:900;margin-bottom:40px}.feature-band .strong{font-size:30px;font-weight:900;margin:0 0 10px}.feature-band p{color:#bed0ea;font-size:14px;margin:0}.approach-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.approach-grid article{border:1px solid var(--line);border-radius:20px;padding:28px;background:#fff;transition:.2s}.approach-grid article:hover{box-shadow:var(--hover);transform:translateY(-3px)}.approach-grid span{color:var(--blue);font-size:12px;font-weight:900}.approach-grid h3{font-size:20px;margin:30px 0 8px}.approach-grid p{color:var(--muted);font-size:14px}.made-japan{margin-top:24px}.contact-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:26px}.contact-panel{border:1px solid var(--line);border-radius:22px;padding:34px;background:#fff;box-shadow:0 12px 34px rgba(16,52,115,.06)}.gmail-button{margin:12px 0 20px}.email-plain{border-top:1px solid var(--line);padding-top:18px;display:grid;gap:4px}.email-plain span{font-size:11px;color:var(--muted)}.email-plain strong{word-break:break-all}.faq-search{width:100%;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 15px;font-size:15px;outline:none;margin-bottom:20px;transition:.2s}.faq-search:focus{border-color:#8eb0e6;box-shadow:0 0 0 4px rgba(22,89,199,.08)}.faq-item{border-bottom:1px solid var(--line)}.faq-q{width:100%;border:0;background:transparent;display:flex;justify-content:space-between;gap:20px;text-align:left;padding:22px 7px;color:var(--ink);font-size:15px;font-weight:800;cursor:pointer;border-radius:10px;transition:.2s}.faq-q:hover,.faq-item.open .faq-q{background:var(--pale);color:var(--navy);padding-left:12px;padding-right:12px}.faq-a{display:none;padding:0 14px 22px;color:var(--muted);font-size:14px}.faq-item.open .faq-a{display:block}.faq-empty{display:none;color:var(--muted);padding:22px 0}.form-wrap{max-width:980px}.contact-form{display:grid;grid-template-columns:1fr 1fr;gap:18px;background:#fff;border:1px solid var(--line);border-radius:24px;padding:30px;box-shadow:0 12px 34px rgba(16,52,115,.05)}.field{display:grid;gap:7px}.field-full{grid-column:1/-1}.field label{font-size:12px;font-weight:850;color:#43506a}.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:13px;background:#fff;padding:13px 14px;color:var(--ink);outline:none;transition:.2s}.field input:hover,.field select:hover,.field textarea:hover{border-color:#b4c9e9}.field input:focus,.field select:focus,.field textarea:focus{border-color:#79a4e2;box-shadow:0 0 0 4px rgba(22,89,199,.09)}.form-actions{display:flex;gap:10px;flex-wrap:wrap}.form-notice{grid-column:1/-1;color:var(--muted);font-size:12px;margin:0}.copied{background:var(--green)!important;color:#fff!important;border-color:var(--green)!important}.site-footer{border-top:1px solid var(--line);padding:44px 0 28px;background:#f5f8fd}.footer-grid{display:grid;grid-template-columns:1.3fr repeat(2,.7fr);gap:38px}.footer-brand{font-size:21px;font-weight:900;color:var(--navy)}.footer-grid p,.footer-grid a{font-size:12px;color:#6b7890;display:block;margin:7px 0}.footer-grid a:hover{color:var(--blue)}.footer-title{font-size:10px;letter-spacing:.13em;text-transform:uppercase;color:#8290a8;margin-bottom:11px}.copyright{border-top:1px solid var(--line);margin-top:28px;padding-top:18px;font-size:11px;color:#8a96aa}.demo-app{background:var(--pale2)}.demo-bar{background:linear-gradient(90deg,#071e4c,#0b3b83);color:#fff}.demo-toolbar{min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px}.demo-version{opacity:.65}.demo-toolbar-actions{display:flex;gap:10px;align-items:center}.demo-language{color:#fff;background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.3)}.demo-language option{color:#111}.demo-back{color:#fff;border-color:rgba(255,255,255,.35);background:rgba(255,255,255,.07)}.demo-dashboard{padding:48px 0 70px}.demo-kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:18px}.demo-kpi{background:#fff;border:1px solid var(--line);border-radius:18px;padding:19px;box-shadow:0 8px 24px rgba(16,52,115,.05);transition:.2s}.demo-kpi:hover{box-shadow:var(--hover);transform:translateY(-2px)}.demo-kpi small{display:block;color:var(--muted);font-weight:800}.demo-kpi strong{display:block;font-size:30px;color:var(--navy);margin-top:5px}.demo-kpi .date-value{font-size:20px}.demo-controls{display:flex;gap:10px;margin-bottom:16px}.demo-controls .faq-search{margin:0;flex:1}.demo-table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:18px;background:#fff}.demo-table{width:100%;border-collapse:collapse;min-width:760px}.demo-table th,.demo-table td{padding:14px 15px;border-bottom:1px solid #edf1f7;text-align:left}.demo-table th{font-size:11px;color:#65718a;background:#f8faff}.demo-table tr:hover td{background:#fbfdff}.stock-actions{display:flex;gap:7px}.mini-btn{border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--navy);padding:7px 10px;font-size:11px;font-weight:850;cursor:pointer;transition:.2s}.mini-btn:hover{background:var(--pale);border-color:#a9c2e8;box-shadow:0 6px 16px rgba(23,89,199,.1)}.demo-note{color:var(--muted);font-size:12px}.cta-band{background:linear-gradient(135deg,#071e4c,#0b3b83);color:#fff;padding:64px 0}.cta-band .shell{display:flex;justify-content:space-between;align-items:center;gap:25px}.cta-band h2{font-size:37px;margin:0}.cta-band p{color:#c7d5ea}@media(max-width:960px){.brand small{display:none}.main-nav{display:none;position:absolute;top:74px;left:18px;right:18px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:10px;box-shadow:var(--shadow);z-index:70}.main-nav.open{display:grid}.main-nav a{padding:14px 16px;border-radius:12px}.main-nav a:after{display:none}.main-nav a:hover,.main-nav a.active{background:var(--pale)}.mobile-toggle{display:grid;place-items:center;margin-left:auto}.header-actions{margin-left:0}.hero-grid,.about-grid,.contact-grid{grid-template-columns:1fr}.plan-grid{grid-template-columns:1fr}.flip-shell,.plan-card{min-height:730px;height:730px}.steps{grid-template-columns:1fr 1fr}.editorial-grid,.approach-grid,.feature-band{grid-template-columns:1fr}.feature-band article{min-height:auto}.security-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.demo-box{grid-template-columns:1fr}.demo-meta{border-left:0;border-top:1px solid var(--line)}}@media(max-width:640px){.shell{width:calc(100% - 26px)}.header-actions .button{display:none}.language{max-width:128px;font-size:11px}.page-hero{padding:58px 0 50px}.display{font-size:42px}.lede{font-size:16px}.hero-actions .button{width:100%}.hero-grid{gap:34px}.section{padding:64px 0}.section-head{align-items:flex-start;flex-direction:column}.plan-face{padding:24px}.flip-shell,.plan-card{min-height:790px;height:790px}.plan-head{display:block}.flip-hint{display:block;text-align:left;max-width:none;margin-top:6px}.plan-actions{display:grid}.steps,.demo-kpis{grid-template-columns:1fr}.contact-form{grid-template-columns:1fr;padding:22px}.field-full{grid-column:auto}.form-actions,.form-notice{grid-column:auto}.footer-grid{grid-template-columns:1fr}.demo-toolbar{align-items:flex-start;padding:12px 0;flex-direction:column}.demo-toolbar-actions{width:100%;justify-content:space-between}.demo-controls{display:grid}.cta-band .shell{display:block}.cta-band .button{margin-top:18px;width:100%}}[dir="rtl"] body{text-align:right}[dir="rtl"] .faq-q{text-align:right}[dir="rtl"] .main-nav,[dir="rtl"] .header-actions,[dir="rtl"] .hero-actions,[dir="rtl"] .plan-actions,[dir="rtl"] .form-actions{direction:rtl}