:root{
  --bg:#0a0b0d; --bg2:#101216; --surface:#15181d; --line:#262a31; --line2:#3a3f48;
  --text:#e9ebee; --muted:#8c939d; --dim:#5d636c;
  --accent:#ff5a1f; --accent-soft:rgba(255,90,31,.14);
  --f-disp:"Barlow Condensed","Noto Sans JP",sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,monospace;
  --f-body:"Noto Sans JP",system-ui,sans-serif;
  --gut:16px; --maxw:1320px;
}
@media (min-width:768px){:root{--gut:32px}}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:400 15px/1.75 var(--f-body);
  -webkit-font-smoothing:antialiased;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.35;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:64px 64px;mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 70%)}
a{color:inherit;text-decoration:none}
img,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
svg{width:1em;height:1em;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:square}
.wrap{position:relative;z-index:1;max-width:var(--maxw);margin:0 auto;padding:0 var(--gut)}

/* ---------- top bar ---------- */
.topbar{position:fixed;inset:0 0 auto;z-index:50;padding-top:env(safe-area-inset-top);
  background:linear-gradient(rgba(10,11,13,.85),rgba(10,11,13,0));transition:background .3s}
.topbar.solid{background:rgba(10,11,13,.88);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:0 1px 0 var(--line)}
.topbar-in{max-width:var(--maxw);margin:0 auto;padding:0 var(--gut);height:56px;display:flex;align-items:center;gap:18px}
.brand{font:700 20px/1 var(--f-disp);letter-spacing:.14em;display:flex;align-items:center;gap:10px;margin-right:auto}
.brand-mark{width:10px;height:10px;background:var(--accent);transform:rotate(45deg)}
.back{display:flex;align-items:center;gap:4px;font:500 12px/1 var(--f-mono);letter-spacing:.12em;color:var(--muted);
  padding:8px 10px 8px 4px;border-right:1px solid var(--line)}
.back:hover{color:var(--text)}
.back svg{font-size:16px}
.xlink{display:flex;align-items:center;gap:8px;font:500 12px/1 var(--f-mono);color:var(--muted)}
.xlink svg{font-size:16px;fill:currentColor;stroke:none}
.xlink:hover{color:var(--text)}
@media (max-width:520px){.xlink span{display:none}}

/* ---------- hero / banner: 切り抜かずに全体を表示 ---------- */
.hero,.cat-hero{position:relative;isolation:isolate;padding-top:calc(56px + env(safe-area-inset-top))}
.hero-media{position:relative;width:100%;aspect-ratio:var(--ar,16/9);max-height:78svh;margin:0 auto;overflow:hidden}
.cat-hero .hero-media{max-height:68svh}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:contain}
.hero-shade{position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(10,11,13,0) 0%,rgba(10,11,13,0) 72%,var(--bg) 100%)}
.scan{position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:56px 56px;background-position:-1px -1px}
.hero-in,.cat-hero-in{position:relative;margin-top:clamp(-72px,-5vw,-20px)}
.hero-in,.cat-hero-in{width:100%;padding-bottom:clamp(20px,4vh,40px)}
.eyebrow{display:flex;align-items:center;gap:12px;margin:0 0 10px;font:500 12px/1 var(--f-mono);letter-spacing:.2em;color:var(--muted)}
.eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent);animation:blink 2s infinite}
@keyframes blink{50%{opacity:.25}}
.hero-title{margin:0;font:700 clamp(52px,11vw,132px)/.86 var(--f-disp);letter-spacing:.01em;text-transform:uppercase;
  text-shadow:0 4px 40px rgba(0,0,0,.5)}
.cat-hero .hero-title{font-size:clamp(44px,9vw,108px)}
.hero-tag{margin:14px 0 0;font:500 clamp(15px,2.2vw,20px)/1.4 var(--f-disp);letter-spacing:.12em;color:#c7cbd1;text-transform:uppercase}
.hero-stats{display:flex;gap:0;margin:28px 0 0;padding:0}
.hero-stats div{padding:0 22px;border-left:1px solid var(--line2)}
.hero-stats div:first-child{padding-left:0;border:0}
.hero-stats dt{font:500 10px/1 var(--f-mono);letter-spacing:.18em;color:var(--muted)}
.hero-stats dd{margin:6px 0 0;font:600 34px/1 var(--f-disp);color:var(--text)}

/* ---------- section head ---------- */
.sec-head{display:flex;align-items:center;gap:16px;margin:56px 0 20px}
.sec-head h2{margin:0;font:700 26px/1 var(--f-disp);letter-spacing:.12em}
.sec-line{flex:1;height:1px;background:linear-gradient(90deg,var(--line2),transparent)}
.sec-idx{font:500 11px/1 var(--f-mono);letter-spacing:.18em;color:var(--dim)}
.p-index main .sec-head{margin-top:24px}

/* ---------- category list ---------- */
.cats{list-style:none;margin:0;padding:0;display:grid;gap:16px}
@media (min-width:900px){.cats{grid-template-columns:1fr 1fr;gap:24px}}
.cat{position:relative;display:block;aspect-ratio:16/10;overflow:hidden;background:var(--surface);isolation:isolate;
  clip-path:polygon(0 0,calc(100% - 22px) 0,100% 22px,100% 100%,22px 100%,0 calc(100% - 22px))}
@media (min-width:900px){.cats li:first-child{grid-column:1/-1}.cats li:first-child .cat{aspect-ratio:21/9}}
.cat-media{position:absolute;inset:0;z-index:-2}
.cat-media img{width:100%;height:100%;object-fit:cover;transition:transform .9s cubic-bezier(.2,.7,.2,1),filter .6s;filter:saturate(.85) brightness(.9)}
.cat:hover .cat-media img,.cat:focus-visible .cat-media img{transform:scale(1.05);filter:saturate(1) brightness(1)}
.cat-shade{position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(10,11,13,0) 35%,rgba(10,11,13,.92) 100%)}
.cat-body{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;padding:clamp(16px,3vw,32px)}
.cat-top{position:absolute;top:clamp(16px,3vw,28px);left:clamp(16px,3vw,32px);display:flex;align-items:center;gap:12px}
.cat-no{font:600 13px/1 var(--f-mono);color:var(--accent);letter-spacing:.1em}
.tag{font:500 10px/1 var(--f-mono);letter-spacing:.18em;padding:5px 8px;border:1px solid rgba(255,255,255,.28);
  background:rgba(10,11,13,.4);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.cat-title{margin:0;font:700 clamp(34px,6vw,64px)/.92 var(--f-disp);letter-spacing:.02em;text-transform:uppercase}
.cat-sub{margin:6px 0 0;font:500 15px/1.3 var(--f-disp);letter-spacing:.1em;color:#c2c6cc;text-transform:uppercase}
.cat-foot{display:flex;align-items:center;justify-content:space-between;margin-top:16px;padding-top:12px;border-top:1px solid rgba(255,255,255,.14)}
.count{font:400 11px/1 var(--f-mono);letter-spacing:.14em;color:var(--muted)}
.count b{color:var(--text);font-weight:500}
.sep{margin:0 10px;color:var(--dim)}
.go{display:flex;align-items:center;gap:8px;font:600 14px/1 var(--f-disp);letter-spacing:.2em;color:var(--accent)}
.go svg{font-size:18px;transition:transform .3s}
.cat:hover .go svg{transform:translateX(5px)}

/* HUD corners */
.hud{position:absolute;width:18px;height:18px;border:0 solid var(--accent);pointer-events:none;opacity:.9;transition:all .35s}
.hud.tl{top:10px;left:10px;border-top-width:2px;border-left-width:2px}
.hud.br{bottom:10px;right:10px;border-bottom-width:2px;border-right-width:2px}
.cat:hover .hud,.mv-btn:hover .hud{width:28px;height:28px}

/* ---------- category page ---------- */
.about{display:grid;gap:24px;margin-top:8px;padding:24px 0 8px;border-bottom:1px solid var(--line)}
@media (min-width:900px){.about{grid-template-columns:1.2fr 1fr;gap:48px;align-items:start}}
.desc{margin:0;font-size:16px;color:#cfd3d8;max-width:62ch}
.spec{margin:0;display:grid;gap:0;border-top:1px solid var(--line)}
.spec div{display:grid;grid-template-columns:84px 1fr;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}
.spec dt{font:500 11px/1.9 var(--f-mono);letter-spacing:.16em;color:var(--accent)}
.spec dd{margin:0;font:400 13px/1.9 var(--f-mono);color:var(--text)}
.about-foot{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.credit{margin:0;font:400 11px/1.6 var(--f-mono);color:var(--dim)}
.share{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border:1px solid var(--line2);
  font:600 13px/1 var(--f-disp);letter-spacing:.2em;transition:all .2s}
.share svg{fill:currentColor;stroke:none;font-size:14px}
.share:hover{border-color:var(--text);background:var(--text);color:var(--bg)}

.mvs{display:grid;gap:16px}
@media (min-width:768px){.mvs{grid-template-columns:1fr 1fr;gap:24px}.mvs .mv:first-child:nth-last-child(odd){grid-column:1/-1}}
.mv,.st{margin:0}
.mv-btn,.st-btn{position:relative;display:block;width:100%;overflow:hidden;background:var(--surface)}
.mv-btn{aspect-ratio:16/9}
.mv-btn img,.mv-btn video{width:100%;height:100%;object-fit:cover;transition:transform .8s cubic-bezier(.2,.7,.2,1)}
.mv-btn:hover img,.mv-btn:hover video{transform:scale(1.03)}
.play{position:absolute;left:50%;top:50%;width:64px;height:64px;margin:-32px 0 0 -32px;display:grid;place-items:center;
  border-radius:50%;background:rgba(10,11,13,.5);border:1px solid rgba(255,255,255,.4);backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);transition:all .25s}
.play svg{font-size:24px;fill:#fff;stroke:none;margin-left:3px}
.mv-btn:hover .play{background:var(--accent);border-color:var(--accent);transform:scale(1.08)}
.badge{position:absolute;right:12px;top:12px;font:500 10px/1 var(--f-mono);letter-spacing:.14em;padding:5px 7px;background:rgba(10,11,13,.65)}
figcaption{margin-top:10px;font-size:13px;color:var(--muted);display:flex;gap:10px;align-items:baseline}
figcaption::before{content:"";width:14px;height:1px;background:var(--accent);flex:none;transform:translateY(-4px)}

.sts{columns:2;column-gap:10px}
@media (min-width:900px){.sts{columns:3;column-gap:16px}}
.st{break-inside:avoid;margin:0 0 10px}
@media (min-width:900px){.st{margin-bottom:16px}}
.st-btn img{width:100%;height:auto;transition:transform .8s cubic-bezier(.2,.7,.2,1),filter .4s;filter:brightness(.92)}
.st-btn:hover img{transform:scale(1.04);filter:brightness(1.05)}

.catnav{display:grid;grid-template-columns:1fr 1fr;margin:72px 0 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cn{padding:22px 0;display:flex;flex-direction:column;gap:6px;transition:color .2s}
.cn.next{text-align:right;border-left:1px solid var(--line);padding-left:16px}
.cn.prev{padding-right:16px}
.cn-k{font:500 11px/1 var(--f-mono);letter-spacing:.18em;color:var(--accent)}
.cn-t{font:700 clamp(20px,4vw,34px)/1 var(--f-disp);text-transform:uppercase}
.cn:hover .cn-t{color:var(--accent)}

/* ---------- footer ---------- */
.foot{position:relative;z-index:1;margin-top:80px;padding:40px 0 calc(40px + env(safe-area-inset-bottom));border-top:1px solid var(--line);background:var(--bg2)}
.foot-name{font:700 22px/1 var(--f-disp);letter-spacing:.14em}
.foot-note{margin:12px 0 0;font-size:12px;color:var(--muted);max-width:70ch}
.foot-copy{margin:8px 0 0;font:400 11px/1 var(--f-mono);color:var(--dim)}

/* ---------- lightbox ---------- */
.lb{position:fixed;inset:0;z-index:100;background:#050607;display:flex;flex-direction:column;touch-action:pan-y}
.lb[hidden]{display:none}
.lb-stage{flex:1;min-height:0;display:grid;place-items:center;padding:56px 0 0;overflow:hidden}
.lb-stage>*{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;animation:lbin .3s ease-out}
.lb-stage iframe{width:min(100vw,calc((100svh - 120px) * 16 / 9));aspect-ratio:16/9;height:auto;border:0}
.lb-stage video{width:100%;height:100%}
@keyframes lbin{from{opacity:0;transform:scale(.985)}}
.lb-bar{display:flex;gap:16px;align-items:baseline;padding:14px var(--gut) calc(14px + env(safe-area-inset-bottom));min-height:56px}
.lb-count{font:500 12px/1 var(--f-mono);letter-spacing:.12em;color:var(--accent);flex:none}
.lb-cap{font-size:13px;color:var(--muted)}
.lb-btn{position:absolute;display:grid;place-items:center;width:48px;height:48px;color:#fff;opacity:.75;transition:opacity .2s}
.lb-btn:hover{opacity:1}
.lb-btn svg{font-size:26px}
.lb-close{top:calc(4px + env(safe-area-inset-top));right:4px}
.lb-prev,.lb-next{top:50%;margin-top:-24px}
.lb-prev{left:4px}.lb-next{right:4px}
@media (hover:none){.lb-prev,.lb-next{display:none}}

/* reveal */
.rv{opacity:0;transform:translateY(24px);transition:opacity .8s ease,transform .8s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.rv{opacity:1;transform:none}}

/* dates */
.cat-date{position:absolute;top:clamp(16px,3vw,28px);right:clamp(28px,4vw,44px);font:500 11px/1 var(--f-mono);letter-spacing:.12em;
  color:#d7dadf;padding:5px 8px;background:rgba(10,11,13,.45);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.eb-date{padding-left:12px;border-left:1px solid var(--line2);color:var(--text)}
.updated{margin:18px 0 0;font:400 11px/1 var(--f-mono);letter-spacing:.16em;color:var(--muted)}
.updated b{color:var(--accent);font-weight:500}

/* top intro */
.hero-intro{margin:16px 0 0;max-width:40em;font-size:clamp(13px,1.6vw,15px);line-height:1.9;color:#c9cdd3;text-shadow:0 2px 16px rgba(0,0,0,.6)}

/* hashtag links to X */
.xtags{grid-column:1/-1;display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.xtags-k{font:500 11px/1 var(--f-mono);letter-spacing:.16em;color:var(--accent);margin-right:6px}
.xtag{display:inline-flex;align-items:center;padding:7px 12px;border:1px solid var(--line2);border-radius:999px;
  font-size:13px;line-height:1;color:var(--text);transition:all .2s}
.xtag:hover{border-color:var(--accent);background:var(--accent-soft);color:#fff}

/* ---------- YouTube (inline) ---------- */
.mvs .yt{grid-column:1/-1}
.yt-box{position:relative;aspect-ratio:16/9;background:#000}
.yt-box .mv-btn{position:absolute;inset:0;aspect-ratio:auto}
.yt-box iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.yt-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.65) 0%,rgba(0,0,0,0) 30%,rgba(0,0,0,0) 70%,rgba(0,0,0,.45) 100%)}
.yt-title{position:absolute;left:16px;right:120px;top:14px;text-align:left;font:500 clamp(13px,1.8vw,17px)/1.4 var(--f-body);color:#fff;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;text-shadow:0 1px 8px rgba(0,0,0,.6)}
.yt-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:clamp(60px,9vw,84px);transition:transform .2s}
.yt-play .yt-logo{width:100%;height:auto;filter:drop-shadow(0 4px 16px rgba(0,0,0,.5))}
.yt-play .yt-logo path:first-child{fill:rgba(33,33,33,.82);transition:fill .2s}
.mv-btn:hover .yt-play .yt-logo path:first-child,.mv-btn:focus-visible .yt-play .yt-logo path:first-child{fill:#ff0033}
.mv-btn:hover .yt-play{transform:translate(-50%,-50%) scale(1.06)}
.yt-badge{position:absolute;right:12px;top:12px;display:flex;align-items:center;gap:6px;padding:5px 9px 5px 7px;
  background:rgba(0,0,0,.72);border-radius:4px;font:600 12px/1 "Roboto","Noto Sans JP",sans-serif;letter-spacing:0;color:#fff}
.yt-badge .yt-logo{width:18px;height:auto}
.yt figcaption{justify-content:space-between;flex-wrap:wrap}
.yt figcaption::before{display:none}
.yt-cap{display:flex;gap:10px;align-items:baseline}
.yt-cap::before{content:"";width:14px;height:1px;background:#ff0033;flex:none;transform:translateY(-4px)}
.yt-open{display:inline-flex;align-items:center;gap:6px;font:500 12px/1 var(--f-mono);color:var(--muted);white-space:nowrap}
.yt-open svg{font-size:13px}
.yt-open:hover{color:#fff}
.yt.playing .hud{display:none}

/* access counter */
.hero-stats .stat-visit dd,.spec dd[data-count]{font-family:var(--f-mono);font-variant-numeric:tabular-nums;letter-spacing:.08em}
.hero-stats .stat-visit dd{font-size:26px;line-height:34px;font-weight:500;color:var(--accent)}
.spec dd[data-count]{color:var(--accent)}
.hero-stats{flex-wrap:wrap;row-gap:14px}

/* 動画カードは切り抜かず、動画そのままの縦横比で表示 */
.mvs{align-items:start}
.mv:not(.yt) .mv-btn{background:#000;max-height:82svh;margin:0 auto}
.mv:not(.yt) .mv-btn video{object-fit:contain}

/* トップのカード: 横幅が足りないカバーは切り抜かず、右寄せで全体を表示 */
.cat-media.fit-contain{background:#0d0f12;overflow:hidden}
.cat-media.fit-contain::before{content:"";position:absolute;inset:-32px;background:var(--cover) center/cover no-repeat;
  filter:blur(28px) brightness(.4) saturate(1.1)}
.cat-media.fit-contain img{position:relative;object-fit:contain;object-position:center;filter:none}
.cat-media.pos-left img{object-position:left center}
.cat-media.pos-right img{object-position:right center}
.cat:hover .cat-media.fit-contain img{transform:none;filter:none}
.cat-media.fit-contain + .cat-shade{background:linear-gradient(180deg,rgba(10,11,13,0) 45%,rgba(10,11,13,.9) 100%)}
.cat-media.pos-right + .cat-shade{background:linear-gradient(90deg,rgba(10,11,13,.88) 0%,rgba(10,11,13,.55) 38%,rgba(10,11,13,0) 68%),
  linear-gradient(180deg,rgba(10,11,13,0) 70%,rgba(10,11,13,.6) 100%)}

/* ---------- トップの映像: 少し暗く + 軽いエフェクト ---------- */
.hero .hero-bg{filter:brightness(calc(1 - var(--dim,0)))}
.fx-grade,.fx-vig,.fx-c{display:none}
.hero.fx .hero-bg{filter:brightness(calc(1 - var(--dim,.3))) contrast(1.1) saturate(.9)}
.hero.fx .fx-grade,.hero.fx .fx-vig,.hero.fx .fx-c{display:block;position:absolute;pointer-events:none}
/* 色味: 左にオレンジ、右に青をうっすら */
.hero.fx .fx-grade{inset:0;mix-blend-mode:screen;
  background:linear-gradient(115deg,rgba(255,90,31,.13) 0%,rgba(255,90,31,0) 42%,rgba(40,110,255,0) 58%,rgba(40,110,255,.13) 100%)}
/* 周辺を落とす */
.hero.fx .fx-vig{inset:0;background:radial-gradient(ellipse at 50% 45%,rgba(5,6,7,0) 42%,rgba(5,6,7,.72) 100%)}
/* 四隅のフレーム */
.hero.fx .fx-c{width:clamp(18px,3vw,34px);height:clamp(18px,3vw,34px);border:0 solid var(--accent);opacity:.85}
.hero.fx .fx-c.tl{left:clamp(10px,2vw,24px);top:clamp(10px,2vw,24px);border-top-width:2px;border-left-width:2px}
.hero.fx .fx-c.tr{right:clamp(10px,2vw,24px);top:clamp(10px,2vw,24px);border-top-width:2px;border-right-width:2px}
.hero.fx .fx-c.bl{left:clamp(10px,2vw,24px);bottom:clamp(60px,9vw,110px);border-bottom-width:2px;border-left-width:2px}
.hero.fx .fx-c.br{right:clamp(10px,2vw,24px);bottom:clamp(60px,9vw,110px);border-bottom-width:2px;border-right-width:2px}