:root{--navy:#1C2B4A;--blue:#2A5DA8;--text:#3A4556;--muted:#5B6472;--muted2:#6B7584;--light:#8A94A3;--border:#E6EAF0;--bg:#F6F8FB;--gold:#E8B64A}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--navy);font-family:'Noto Sans JP','Hiragino Sans','Hiragino Kaku Gothic ProN',sans-serif;-webkit-font-smoothing:antialiased;line-height:1.8;overflow-wrap:anywhere}
a{color:var(--blue);text-decoration:none}a:hover{color:var(--navy)}
h1,h2,h3,p{margin:0}
.container{max-width:1120px;margin:0 auto;padding-left:20px;padding-right:20px}
.eyebrow{font-size:12px;font-weight:500;letter-spacing:.14em;color:var(--blue);margin-bottom:10px}
h2{font-size:clamp(24px,3.4vw,34px);font-weight:700;line-height:1.4}
h3{font-size:19px;font-weight:700;line-height:1.5}
.body-text{font-size:clamp(15px,1.5vw,16px);color:var(--text);text-wrap:pretty}
.body-text p+p{margin-top:18px}
.note{margin-top:12px;font-size:14px;color:var(--muted2)}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 26px;border-radius:999px;font-size:14px;font-weight:500;transition:background .2s,color .2s,border-color .2s}
.btn-primary{background:var(--navy);color:#fff}.btn-primary:hover{background:var(--blue);color:#fff}
.btn-blue{background:var(--blue);color:#fff}.btn-blue:hover{background:var(--navy);color:#fff}
.btn-outline{background:#fff;border:1px solid #D5DCE6;color:var(--navy)}.btn-outline:hover{border-color:var(--blue);color:var(--blue)}
.btn-sm{min-height:0;padding:9px 18px}
.btn-lg{min-height:52px;padding:0 32px;font-size:15px}

.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.header-inner{max-width:1120px;margin:0 auto;padding:0 20px;height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;color:var(--navy)}
.logo{width:32px;height:32px;border-radius:9px;background:var(--navy);display:grid;place-items:center;flex:none}
.logo-dot{width:12px;height:12px;border-radius:50%;background:var(--gold);display:block}
.logo-sm{width:28px;height:28px;border-radius:8px}.logo-sm .logo-dot{width:10px;height:10px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:15px;font-weight:700;letter-spacing:.01em}
.brand-sub{font-size:10px;color:var(--muted2);letter-spacing:.08em}
.nav-desktop{display:none;align-items:center;gap:28px;font-size:14px;font-weight:500}
.nav-desktop a{color:var(--text)}.nav-desktop a:hover{color:var(--blue)}
.nav-desktop a.btn-primary{color:#fff}.nav-desktop a.btn-primary:hover{color:#fff;background:var(--blue)}
.nav-mobile a.btn-primary{color:#fff}
.menu-btn{width:44px;height:44px;border:0;background:transparent;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;margin-right:-8px;padding:0}
.menu-btn span{width:22px;height:2px;background:var(--navy);border-radius:2px;display:block;transition:transform .2s,opacity .2s}
.menu-btn.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn.open span:nth-child(2){opacity:0}
.menu-btn.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-mobile{display:none;border-top:1px solid var(--border);background:#fff;padding:8px 20px 20px;flex-direction:column}
.nav-mobile.open{display:flex}
.nav-mobile a{padding:14px 4px;border-bottom:1px solid #EEF1F5;color:var(--navy);font-weight:500;font-size:15px}
.nav-mobile a small{color:var(--light);font-size:12px;margin-left:8px;font-weight:400}
.nav-mobile a.btn{margin-top:16px;border:0;padding:13px 18px}

.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#F6F8FB 0%,#fff 100%)}
.hero-bg{position:absolute;aspect-ratio:1;border-radius:50%;pointer-events:none}
.hero-bg-a{right:-12%;top:-20%;width:min(62vw,560px);background:radial-gradient(circle at 40% 40%,#E3EAF4,rgba(255,255,255,0))}
.hero-bg-b{left:-8%;bottom:-30%;width:min(50vw,420px);background:radial-gradient(circle at 50% 50%,#F5EFE2,rgba(255,255,255,0))}
.hero-inner{position:relative;padding-top:clamp(72px,12vw,140px);padding-bottom:clamp(72px,10vw,120px)}
.hero .eyebrow{font-size:13px;margin-bottom:18px}
h1{font-size:clamp(30px,6vw,56px);font-weight:700;line-height:1.35;letter-spacing:.01em;text-wrap:pretty;max-width:20em}
.lead{margin-top:28px;max-width:34em;font-size:clamp(15px,1.6vw,17px);color:var(--muted);text-wrap:pretty}
.hero-actions{margin-top:36px;display:flex;flex-wrap:wrap;gap:12px}

.section{padding-top:clamp(64px,9vw,112px);padding-bottom:clamp(64px,9vw,112px)}
.section-gray{background:var(--bg)}
.two-col{display:grid;grid-template-columns:1fr;gap:clamp(28px,5vw,64px);align-items:start}
.cards{margin-top:clamp(28px,4vw,48px);display:grid;grid-template-columns:1fr;gap:20px}
.card{background:#fff;border:1px solid var(--border);border-radius:18px;padding:28px 26px 30px;display:flex;flex-direction:column;gap:14px}
.card p{font-size:15px;color:var(--muted);text-wrap:pretty}
.card-num{font-size:12px;font-weight:500;letter-spacing:.12em;color:var(--blue)}
.card-label{font-size:12px;font-weight:500;letter-spacing:.12em;color:var(--light)}
.card .btn{margin-top:8px;align-self:flex-start;padding:0 24px}

.worklab{border:1px solid var(--border);border-radius:24px;padding:clamp(28px,5vw,56px);display:grid;grid-template-columns:1fr;gap:clamp(28px,4vw,56px);align-items:center;background:linear-gradient(135deg,#fff 0%,#F6F8FB 100%)}
.worklab-title{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.worklab-title h2{font-size:clamp(28px,4vw,40px);line-height:1.3}
.worklab .body-text{margin-top:20px}
.tag{font-size:12px;color:var(--muted);background:#EEF2F7;border-radius:999px;padding:4px 12px}

.company{margin:0;background:#fff;border:1px solid var(--border);border-radius:18px;padding:8px 26px}
.company>div{display:grid;grid-template-columns:minmax(96px,7.5em) 1fr;gap:12px;padding:16px 0;border-bottom:1px solid #EEF1F5;font-size:15px}
.company>div:last-child{border-bottom:0}
.company dt{color:var(--muted2);font-weight:500}
.company dd{margin:0}

.contact{text-align:center;max-width:calc(36em + 40px)}
.contact .body-text{margin-top:18px;font-size:15px;color:var(--muted)}
.contact .btn{margin-top:32px}

.footer{border-top:1px solid var(--border)}
.footer-inner{padding-top:40px;padding-bottom:28px;display:flex;flex-direction:column;gap:28px}
.footer-top{display:flex;flex-wrap:wrap;justify-content:space-between;gap:24px 40px;align-items:flex-start}
.footer .brand-name{font-size:14px}
.footer-nav{display:flex;flex-wrap:wrap;gap:10px 24px;font-size:13px}
.footer-nav a{color:var(--text)}.footer-nav a:hover{color:var(--blue)}
.copyright{font-size:12px;color:var(--light)}

@media (min-width:640px){.cards{grid-template-columns:repeat(3,1fr)}}
@media (min-width:720px){.two-col{grid-template-columns:1fr 1.6fr}.worklab{grid-template-columns:1.2fr 1fr}}
@media (min-width:820px){.nav-desktop{display:flex}.menu-btn,.nav-mobile{display:none!important}}
@media (max-width:639px){.cards{grid-template-columns:1fr}}

.legal{max-width:calc(44em + 40px)}
.legal-title{font-size:clamp(26px,4vw,38px);font-weight:700;line-height:1.4}
.legal-intro{margin-top:24px;font-size:15px;color:var(--text);text-wrap:pretty}
.legal h2{font-size:18px;margin-top:44px;padding-bottom:10px;border-bottom:1px solid var(--border)}
.legal p{margin-top:14px;font-size:15px;color:var(--text)}
.legal ol{margin:12px 0 0;padding-left:1.6em;font-size:15px;color:var(--text)}
.legal li{margin-top:6px}
.legal-contact{margin-top:16px;background:var(--bg);border-radius:14px;padding:16px 22px}
.legal-contact p{margin-top:2px}
.legal-date{margin-top:40px;font-size:13px;color:var(--light)}

/* Worklab */
:root{--teal:#1F8A95;--teal-dark:#166B74;--teal-bg:#E6F3F4}
.eyebrow-teal{color:var(--teal)}
.btn-teal{background:var(--teal);color:#fff}.btn-teal:hover{background:var(--teal-dark);color:#fff}
.nav-desktop a.btn-teal,.nav-mobile a.btn-teal{color:#fff}.nav-desktop a.btn-teal:hover{color:#fff;background:var(--teal-dark)}
.wl-logo{width:32px;height:32px;border-radius:9px;background:var(--teal);display:grid;grid-template-columns:1fr 1fr;gap:3px;padding:8px;flex:none}
.wl-logo span{display:block;background:#fff;border-radius:2px}
.wl-logo span:first-child{border-radius:50%}
.wl-logo-sm{width:28px;height:28px;border-radius:8px;padding:7px}
.wl-name{font-size:17px;letter-spacing:.02em}
.wl-hero{background:linear-gradient(180deg,#F2F8F9 0%,#fff 100%)}
.wl-bg-a{right:-12%;top:-20%;width:min(62vw,560px);background:radial-gradient(circle at 40% 40%,#D9ECEE,rgba(255,255,255,0))}
.wl-bg-b{left:-8%;bottom:-30%;width:min(50vw,420px);background:radial-gradient(circle at 50% 50%,#E6EEF6,rgba(255,255,255,0))}
.hero-note{margin-top:14px;font-size:13px;color:var(--muted2)}
.cards-4{gap:18px}
.card-head{display:flex;align-items:center;justify-content:space-between}
.icon{width:44px;height:44px;border-radius:12px;background:var(--teal-bg);display:grid;place-items:center}
.icon svg{width:22px;height:22px;fill:none;stroke:var(--teal);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.card-num-teal{color:var(--teal)}
.wl-feature{background:linear-gradient(135deg,#fff 0%,#F2F8F9 100%)}
.wl-feature-text{margin-top:20px}
.wl-feature-btn{margin-top:28px}
.steps{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.steps li{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--border);border-radius:16px;padding:18px 20px}
.step-num{flex:none;width:32px;height:32px;border-radius:50%;background:var(--teal);color:#fff;font-size:14px;font-weight:700;display:grid;place-items:center}
.steps strong{display:block;font-size:15px;color:var(--navy);line-height:1.5}
.steps span:not(.step-num){display:block;font-size:14px;color:var(--muted);margin-top:4px}
.wl-philosophy{padding-top:clamp(88px,13vw,160px);padding-bottom:clamp(88px,13vw,160px)}
.philosophy-inner{text-align:center;max-width:calc(30em + 40px)}
.philosophy-text{margin-top:36px;font-size:clamp(15px,1.6vw,17px);color:var(--text);display:flex;flex-direction:column;gap:26px;text-wrap:pretty}
.philosophy-list{font-size:clamp(18px,2.4vw,24px);font-weight:500;line-height:2;color:var(--navy)}
.text-link{display:inline-block;margin-top:18px;font-size:14px;font-weight:500;color:var(--teal)}.text-link:hover{color:var(--teal-dark)}
@media (min-width:640px){.cards-4{grid-template-columns:repeat(2,1fr)}}
@media (min-width:960px){.cards-4{grid-template-columns:repeat(4,1fr)}}
.text-link-inline{display:block;margin-top:6px;font-weight:500}
.h-link{color:var(--navy)}.h-link:hover{color:var(--blue)}
a.card-label:hover{color:var(--blue)}
.card-examples{margin-top:4px;padding-top:14px;border-top:1px solid #EEF1F5;display:flex;flex-direction:column;gap:8px}
.card-examples-label{font-size:11px;font-weight:500;letter-spacing:.12em;color:var(--light)}
.card-examples ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.card-examples li{position:relative;padding-left:14px;font-size:13px;color:var(--text);line-height:1.6}
.card-examples li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--teal)}
.venn{position:relative;width:min(100%,340px);aspect-ratio:1;margin:0 auto}
.venn-c{position:absolute;width:58%;aspect-ratio:1;border-radius:50%}
.venn-tl{left:0;top:0;background:rgba(31,138,149,.14);border:1px solid rgba(31,138,149,.35)}
.venn-tr{right:0;top:0;background:rgba(42,93,168,.12);border:1px solid rgba(42,93,168,.35)}
.venn-bl{left:0;bottom:0;background:rgba(232,182,74,.16);border:1px solid rgba(232,182,74,.5)}
.venn-br{right:0;bottom:0;background:rgba(28,43,74,.10);border:1px solid rgba(28,43,74,.3)}
.venn-l{position:absolute;font-size:clamp(13px,1.6vw,15px);font-weight:700;line-height:1.4}
.venn-l-tl{left:12%;top:14%;color:#166B74}
.venn-l-tr{right:12%;top:14%;color:#2A5DA8;text-align:right}
.venn-l-bl{left:12%;bottom:14%;color:#8A6410}
.venn-l-br{right:12%;bottom:14%;color:#1C2B4A;text-align:right}
.venn-core{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:34%;aspect-ratio:1;border-radius:50%;background:var(--teal);color:#fff;display:grid;place-items:center;text-align:center;font-size:clamp(11px,1.4vw,13px);font-weight:700;line-height:1.5;box-shadow:0 8px 24px rgba(31,138,149,.3)}
.venn-block{margin-top:clamp(28px,4vw,48px);background:#fff;border:1px solid var(--border);border-radius:24px;padding:clamp(28px,5vw,56px);display:grid;grid-template-columns:1fr;gap:clamp(28px,4vw,56px);align-items:center}
.venn-block p{margin-top:12px;font-size:15px;color:var(--text);text-wrap:pretty}
.venn-title{font-size:clamp(20px,2.6vw,26px);line-height:1.5}
.venn-title+p{margin-top:16px}
@media (min-width:720px){.venn-block{grid-template-columns:1fr 1.2fr}}