/* TOP v1 — 左固定ナビ・HERO・WORKS 3カード（index.html だけが読む） */
.tv1-side{display:none}
.tv1-hero{position:relative;isolation:isolate;overflow:hidden;min-height:620px;background:radial-gradient(ellipse 60% 70% at 78% 40%,#16467A 0%,transparent 70%),linear-gradient(180deg,#0A1F3D 0%,var(--deep) 100%);border-bottom:1px solid var(--line)}
.tv1-hero-bg{position:absolute;z-index:-2;right:-4%;top:-6%;width:min(62%,760px);opacity:.55}
.tv1-hero-bg svg{display:block;width:100%;height:auto}
.tv1-hero:after{content:"";position:absolute;z-index:-1;inset:0;background:linear-gradient(90deg,rgba(5,14,28,.92) 0%,rgba(5,14,28,.55) 42%,rgba(5,14,28,0) 70%)}
.tv1-hero-team{position:absolute;z-index:0;right:2%;bottom:0;width:min(46%,560px);height:auto;filter:drop-shadow(0 18px 40px rgba(0,0,0,.55))}
.tv1-hero-copy{position:relative;z-index:1;max-width:560px;padding:96px 0 88px 7%}
.tv1-hero h1{margin:0;font-size:1rem;line-height:1}
.tv1-hero h1 img{width:360px;height:auto}
.tv1-tagline{display:flex;align-items:center;gap:14px;margin-top:18px;font-size:1.45rem;font-weight:800;letter-spacing:.06em;color:#fff}
.tv1-tagline:before,.tv1-tagline:after{content:"";width:34px;height:2px;background:#fff;flex:none}
.tv1-lead{margin:28px 0 0;font-size:1.05rem;line-height:2;color:#E6EDF6}
.tv1-cta{display:inline-flex;align-items:center;gap:36px;margin-top:30px;padding:14px 26px;border:2px solid var(--gold);color:var(--gold);font-weight:700;letter-spacing:.08em;text-decoration:none;transition:background .2s,color .2s}
.tv1-cta:hover,.tv1-cta:focus-visible{background:var(--gold);color:var(--navy)}
.tv1-catch{position:absolute;z-index:1;right:4%;top:56px;margin:0;font-size:clamp(1.5rem,2.4vw,2.3rem);font-weight:800;line-height:1.45;letter-spacing:.06em;color:#fff;transform:rotate(-14deg);transform-origin:right top;text-shadow:0 4px 18px rgba(0,0,0,.6)}
.tv1-catch:after{content:"";display:block;width:88%;height:6px;margin:10px 0 0 auto;border-radius:6px;background:var(--gold)}
.tv1-works{padding:40px 0 64px;background:var(--deep)}
.tv1-works-inner{width:calc(100% - 14%);margin:0 auto}
.tv1-works-head{display:flex;align-items:center;gap:18px;margin-bottom:22px}
.tv1-works-head:before{content:"";width:44px;height:3px;background:var(--gold);flex:none}
.tv1-works-head h2{margin:0;font-size:2rem;letter-spacing:.04em}
.tv1-works-head h2 small{margin-left:16px;font-size:1rem;font-weight:500}
.tv1-works-all{margin-left:auto;color:var(--gold);font-size:.95rem;font-weight:700;text-decoration:none;white-space:nowrap}
.tv1-works-all:hover,.tv1-works-all:focus-visible{text-decoration:underline}
.tv1-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin:0;padding:0;list-style:none}
.tv1-card a{position:relative;display:flex;flex-direction:column;justify-content:flex-end;min-height:200px;padding:22px 24px;border:1px solid var(--line);border-radius:4px;overflow:hidden;color:#fff;text-decoration:none;background:linear-gradient(180deg,rgba(5,14,28,0) 30%,rgba(5,14,28,.92) 78%),var(--tv1-art);transition:border-color .2s,transform .2s}
.tv1-card a:hover,.tv1-card a:focus-visible{border-color:var(--gold);transform:translateY(-3px)}
.tv1-card.art-1{--tv1-art:repeating-linear-gradient(90deg,rgba(104,216,255,.10) 0 2px,transparent 2px 46px),radial-gradient(ellipse 80% 90% at 50% 0%,#2A6CB0 0%,#0B2A4D 60%,#081A33 100%)}
.tv1-card.art-2{--tv1-art:radial-gradient(circle at 50% 20%,#FFB347 0%,rgba(255,140,40,.55) 14%,transparent 42%),linear-gradient(160deg,#3A2A1A 0%,#141A26 60%,#081A33 100%)}
.tv1-card.art-3{--tv1-art:repeating-linear-gradient(0deg,rgba(255,209,42,.16) 0 6px,transparent 6px 22px),linear-gradient(90deg,transparent 30%,rgba(104,216,255,.18) 30% 92%,transparent 92%),linear-gradient(160deg,#1A3556 0%,#0B1A2E 70%)}
.tv1-card-num{display:inline-block;width:fit-content;padding-bottom:6px;border-bottom:3px solid var(--gold);font-size:1rem;font-weight:700;letter-spacing:.08em}
.tv1-card-title{margin-top:12px;font-size:1.6rem;font-weight:800;line-height:1.3}
.tv1-card-sub{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:6px;color:#E6EDF6}
@media(min-width:1024px){
 html{scroll-padding-top:0}
 body.top-v1 .site-header{display:none}
 body.top-v1 main,body.top-v1 .footer{margin-left:276px}
 .tv1-side{position:fixed;z-index:60;top:0;left:0;bottom:0;width:276px;display:flex;flex-direction:column;padding:56px 0 32px;overflow-y:auto;background:#050D1A;border-right:1px solid var(--line)}
 .tv1-side-brand{display:flex;align-items:center;min-height:56px;margin:12px 0 7.3px;padding:0 14px}
 .tv1-side-brand img{width:221px;height:auto}
 .tv1-side-nav{margin-top:56px}
 .tv1-side-nav a{position:relative;display:grid;grid-template-columns:64px 1fr;padding:12px 24px 12px 40px;color:#fff;text-decoration:none}
 .tv1-side-nav a span{grid-row:1/3;padding-top:4px;color:var(--slate);font-size:.82rem}
 .tv1-side-nav a b{font-size:1.2rem;font-weight:600;letter-spacing:.06em}
 .tv1-side-nav a small{color:var(--slate);font-size:.85rem;letter-spacing:.1em}
 .tv1-side-nav a[aria-current="page"] b,.tv1-side-nav a[aria-current="page"] small,.tv1-side-nav a:hover b,.tv1-side-nav a:focus-visible b{color:var(--gold)}
 .tv1-side-nav a[aria-current="page"]:before{content:"";position:absolute;left:12px;top:10px;bottom:10px;width:3px;background:var(--gold)}
 .tv1-side-foot{margin-top:auto;padding:32px 40px 0}
 .tv1-side-foot:before{content:"";display:block;width:40px;height:3px;margin-bottom:28px;background:var(--gold)}
 .tv1-side-sns{display:flex;gap:20px}
 .tv1-side-sns a{display:grid;place-items:center;width:44px;height:44px;color:#fff}
 .tv1-side-sns a:hover,.tv1-side-sns a:focus-visible{color:var(--gold)}
 .tv1-side-foot p{margin:20px 0 0;color:var(--slate);font-size:.8rem;line-height:1.8}
}
@media(max-width:1023px){
 .tv1-hero{min-height:0;padding-bottom:300px}
 .tv1-hero-copy{padding:124px 22px 0}
 .tv1-hero-bg{width:110%;right:-30%;top:auto;bottom:40px}
 .tv1-hero:after{background:linear-gradient(180deg,rgba(5,14,28,.9) 0%,rgba(5,14,28,.55) 55%,rgba(5,14,28,.1) 100%)}
 .tv1-hero-team{width:min(92%,460px);right:50%;transform:translateX(50%)}
 .tv1-catch{position:static;margin:36px 22px 0;transform:none;font-size:1.35rem}
 .tv1-catch:after{margin-left:0;width:60%}
 .tv1-works-inner{width:calc(100% - 44px)}
 .tv1-cards{grid-template-columns:1fr}
}
@media(max-width:650px){
 .tv1-hero{padding-bottom:230px}
 .tv1-hero-copy{padding:100px 18px 0}
 .tv1-hero h1 img{width:260px}
 .tv1-tagline{font-size:1.05rem;gap:10px}
 .tv1-tagline:before,.tv1-tagline:after{width:20px}
 .tv1-lead{font-size:.98rem}
 .tv1-catch{margin:30px 18px 0;font-size:1.2rem}
 .tv1-works-inner{width:calc(100% - 36px)}
 .tv1-works-head{flex-wrap:wrap;gap:12px}
 .tv1-works-head h2{font-size:1.6rem}
 .tv1-works-all{margin-left:0;width:100%}
 .tv1-card a{min-height:170px}
 .tv1-card-title{font-size:1.35rem}
}
@media(prefers-reduced-motion:reduce){.tv1-cta,.tv1-card a{transition:none}.tv1-card a:hover{transform:none}}
@media(min-width:1024px) and (max-height:800px){.tv1-side-brand{margin:-22px 0 36.7px}}