:root{
  --gold:#f3c400; --gold2:#ffd15d; --lavender:#9b78cf; --lavender-deep:#7652b7;
  --ink:#2c2c2c; --muted:#6f6a72; --bg:#fffaf4; --panel:rgba(255,255,255,.82);
}
*{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;font-family:"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;color:var(--ink);background:linear-gradient(135deg,#fffaf4 0%,#fff 48%,#f5efff 100%);line-height:1.9;overflow-x:hidden} img{max-width:100%;height:auto} a{color:inherit;text-decoration:none}
.site-header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px clamp(18px,5vw,72px);background:rgba(255,255,255,.9);backdrop-filter:blur(16px);box-shadow:0 1px 20px rgba(90,62,120,.08)}
.brand{display:flex;align-items:center;gap:12px;min-width:0}.brand img{width:54px;height:54px;object-fit:contain;flex:0 0 auto}.brand b{display:block;font-size:18px;letter-spacing:.08em;white-space:nowrap}.brand small{display:block;color:var(--lavender-deep);font-weight:700;letter-spacing:.05em;margin-top:-4px;white-space:nowrap}.global-nav{display:flex;gap:30px;font-size:14px}.global-nav a{position:relative;white-space:nowrap}.global-nav a:after{content:"";position:absolute;left:0;right:0;bottom:-8px;height:2px;background:linear-gradient(90deg,var(--gold),var(--lavender));transform:scaleX(0);transition:.25s}.global-nav a:hover:after{transform:scaleX(1)}.menu-check,.menu-button{display:none}
.hero{min-height:calc(100svh - 84px);display:grid;grid-template-columns:minmax(330px,.88fr) minmax(440px,1.12fr);gap:clamp(28px,4vw,64px);align-items:center;padding:clamp(46px,6vw,92px) clamp(18px,5vw,72px) clamp(42px,4vw,70px)}.hero-copy{position:relative;z-index:1}.hero-logo{width:min(280px,42vw);margin:0 0 22px -8px}.hero h1{font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:clamp(34px,4.3vw,68px);font-weight:500;line-height:1.45;letter-spacing:.08em;margin:0 0 26px}.hero h1 span{color:var(--lavender-deep)}.hero h1 .gold{color:#e99700}.hero p{max-width:620px;font-size:clamp(15px,1.2vw,18px);color:#423d45;margin:0 0 30px}.button{display:inline-flex;align-items:center;justify-content:center;min-width:210px;padding:14px 28px;border-radius:999px;background:linear-gradient(90deg,var(--lavender),#d6b8e8);color:#fff;font-weight:700;box-shadow:0 14px 28px rgba(127,85,188,.22);transition:.2s}.button:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(127,85,188,.28)}.hero-visual img{width:100%;border-radius:34px;box-shadow:0 24px 70px rgba(88,58,104,.16);object-fit:cover;aspect-ratio:16/10}.section{width:min(1120px,calc(100vw - 36px));margin:0 auto;padding:86px 0}.label{color:var(--lavender-deep);font-weight:800;letter-spacing:.14em;text-transform:uppercase;margin:0 0 12px}.concept{display:grid;grid-template-columns:.9fr 1.2fr;gap:60px;align-items:start}.concept h2,.company h2,.contact h2{font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:clamp(30px,3vw,48px);line-height:1.55;font-weight:500;margin:0}.concept p:last-child{font-size:17px;margin:8px 0 0}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.cards article{background:var(--panel);border:1px solid rgba(155,120,207,.16);border-radius:28px;padding:34px;box-shadow:0 16px 50px rgba(90,62,120,.08)}.cards span{display:inline-block;color:#e99700;font-weight:800;letter-spacing:.14em;margin-bottom:16px}.cards h3{font-size:22px;margin:0 0 10px}.cards p{color:var(--muted);margin:0}.mockup img{width:100%;display:block;border-radius:34px;box-shadow:0 24px 70px rgba(88,58,104,.16)}.company{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px;background:rgba(255,255,255,.72);border-radius:34px;padding:58px;margin-bottom:80px;box-shadow:0 16px 50px rgba(90,62,120,.08)}dl{display:grid;grid-template-columns:140px 1fr;gap:18px 28px;margin:0}dt{font-weight:800;color:var(--lavender-deep)}dd{margin:0}.contact{text-align:center;padding-top:40px}.contact p{margin-bottom:24px}footer{text-align:center;padding:40px 5vw;color:var(--muted)}
@media(max-width:980px){.global-nav{gap:18px;font-size:13px}.hero{grid-template-columns:1fr}.hero-visual{order:-1}.hero-visual img{aspect-ratio:16/9}.cards{grid-template-columns:1fr 1fr}.concept,.company{grid-template-columns:1fr}}
@media(max-width:640px){.site-header{align-items:center;padding:10px 16px}.brand img{width:44px;height:44px}.brand b{font-size:14px;letter-spacing:.04em}.brand small{font-size:11px}.menu-button{display:flex;flex-direction:column;gap:5px;width:42px;height:42px;border-radius:999px;align-items:center;justify-content:center;background:#fff;box-shadow:0 8px 24px rgba(90,62,120,.14);cursor:pointer}.menu-button span{width:18px;height:2px;background:var(--lavender-deep);border-radius:2px}.global-nav{position:absolute;left:12px;right:12px;top:66px;display:grid;gap:0;background:rgba(255,255,255,.96);border-radius:22px;padding:8px;box-shadow:0 18px 48px rgba(90,62,120,.16);opacity:0;pointer-events:none;transform:translateY(-8px);transition:.2s}.global-nav a{padding:12px 16px;border-radius:14px}.global-nav a:hover{background:#f6efff}.menu-check:checked~.global-nav{opacity:1;pointer-events:auto;transform:none}.hero{padding:26px 16px 36px;min-height:auto}.hero-logo{width:190px;margin:0 auto 16px;display:block}.hero-copy{text-align:center}.hero h1{font-size:31px;letter-spacing:.04em;line-height:1.5}.hero p{font-size:14px;text-align:left;background:rgba(255,255,255,.56);border-radius:18px;padding:14px 16px}.button{width:min(100%,260px)}.hero-visual img{border-radius:22px;aspect-ratio:4/3;object-position:center}.section{width:calc(100vw - 32px);padding:52px 0}.concept h2,.company h2,.contact h2{font-size:30px}.concept p:last-child{font-size:15px}.cards{grid-template-columns:1fr}.cards article{padding:24px;border-radius:22px}.mockup img{border-radius:22px}.company{padding:26px;border-radius:24px;margin-bottom:48px}dl{grid-template-columns:1fr;gap:4px 0}dt{margin-top:12px}.contact{padding-top:20px}}
@media(max-width:380px){.hero h1{font-size:27px}.brand b{font-size:13px}.brand small{font-size:10px}.site-header{padding-left:12px;padding-right:12px}}