/* =========================================================
   ヒロインズバトルアリーナ — JP 全年齢（広告遷移先）LP
   シネマティック × ヒロイック。示唆表現なし・年齢ゲートなし。
   No framework / plain CSS. ビルド不要。
   ========================================================= */

:root{
  --bg:#0e0507; --surface:rgba(255,255,255,.05);
  --line:rgba(255,255,255,.11);
  --violet:#a3213a; --violet2:#e0546f;
  --cyan:#e8c777; --cyan2:#f3d88f;
  --pink:#f0a5b8; --gold:#f3d88f;
  --text:#faf3ee; --muted:rgba(250,243,238,.68); --muted2:rgba(250,243,238,.42);
  --maxw:1120px; --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;background:var(--bg);color:var(--text);
  font-family:"Noto Sans JP",system-ui,-apple-system,"Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;
  line-height:1.85;overflow-x:hidden;-webkit-tap-highlight-color:transparent;
  background-image:radial-gradient(55% 40% at 88% -5%,rgba(232,199,119,.10),transparent 60%),radial-gradient(55% 45% at 0% 28%,rgba(163,33,58,.16),transparent 60%);
  background-attachment:fixed;}
img{max-width:100%;display:block;}
.sp-only{display:inline;} @media(min-width:760px){.sp-only{display:none;}}
.c-cyan{color:var(--cyan2);} .c-violet{color:var(--violet2);} .c-gold{color:var(--gold);}
.strong{font-weight:700;}

.kicker{font-family:"Cinzel",serif;font-weight:800;letter-spacing:.22em;font-size:.72rem;color:var(--cyan2);margin:0 0 10px;text-transform:uppercase;}
.kicker.c-gold{color:var(--gold);}

/* フレーム装飾 */
.frame{position:relative;}
.frame::before,.frame::after{content:"";position:absolute;width:26px;height:26px;pointer-events:none;border:2px solid rgba(246,205,91,.55);}
.frame::before{top:10px;left:10px;border-right:0;border-bottom:0;}
.frame::after{bottom:10px;right:10px;border-left:0;border-top:0;}
.frame--lg::before,.frame--lg::after{width:40px;height:40px;}

/* ボタン */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:11px;padding:14px 26px;border-radius:13px;font-weight:900;font-size:1rem;letter-spacing:.02em;text-decoration:none;cursor:pointer;border:none;position:relative;overflow:hidden;transition:transform .15s var(--ease),box-shadow .25s var(--ease);}
.btn:active{transform:scale(.98);}
.btn--lg{padding:16px 32px;font-size:1.06rem;}
.btn--xl{padding:19px 40px;font-size:1.14rem;border-radius:15px;}
.btn--steam{background:linear-gradient(120deg,#c8283f,#a3213a 55%,#6b1230);color:#fff;box-shadow:0 14px 40px rgba(200,40,63,.35),inset 0 1px 0 rgba(255,255,255,.28);}
.btn--steam:hover{box-shadow:0 20px 54px rgba(200,40,63,.5),inset 0 1px 0 rgba(255,255,255,.32);transform:translateY(-2px);}
.btn--steam::after{content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;background:linear-gradient(105deg,transparent,rgba(255,255,255,.5),transparent);transform:skewX(-20deg);animation:sheen 3.6s var(--ease) infinite;}
@keyframes sheen{0%,60%{left:-60%}100%{left:130%}}
.btn.is-soon{filter:saturate(.85);}
.steam-ico{width:18px;height:18px;flex:0 0 auto;border-radius:50%;background:rgba(255,255,255,.92);-webkit-mask:radial-gradient(circle at 50% 50%,#000 42%,transparent 44%);mask:radial-gradient(circle at 50% 50%,#000 42%,transparent 44%);}

/* スティッキー */
.sticky{position:fixed;left:0;right:0;bottom:0;z-index:60;padding:12px 16px calc(12px + env(safe-area-inset-bottom,0px));background:linear-gradient(to top,rgba(8,6,17,.98) 45%,transparent);opacity:0;pointer-events:none;transition:opacity .3s var(--ease);}
.sticky.is-show{opacity:1;pointer-events:auto;}
.sticky__inner{max-width:var(--maxw);margin:0 auto;display:flex;align-items:center;gap:16px;}
.sticky__label{flex:1;margin:0;font-size:.85rem;font-weight:900;font-family:"Zen Kaku Gothic New",sans-serif;color:var(--text);}
@media(max-width:719px){.sticky__label{display:none;} .sticky .btn{width:100%;}}

/* ヒーロー */
.hero{position:relative;min-height:92svh;display:flex;align-items:center;overflow:hidden;}
.hero__bg{position:absolute;inset:0;
  background:radial-gradient(85% 65% at 80% 10%,rgba(232,199,119,.16),transparent 60%),radial-gradient(80% 80% at 10% 92%,rgba(163,33,58,.35),transparent 60%),radial-gradient(130% 120% at 50% 0%,#2a0b12 0%,#0e0507 66%);}
.hero__bg::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1.4px);background-size:26px 26px;opacity:.5;}
.hero__inner{position:relative;z-index:2;max-width:var(--maxw);width:100%;margin:0 auto;padding:96px 24px 62px;text-align:center;}
.hero__kicker{font-family:"Cinzel",serif;font-weight:800;letter-spacing:.26em;font-size:clamp(.58rem,1.9vw,.76rem);color:var(--gold);margin:0 0 18px;text-transform:uppercase;text-shadow:0 2px 20px rgba(246,205,91,.35);}
.hero__catch{font-family:"Zen Kaku Gothic New",sans-serif;font-size:clamp(1.2rem,3.6vw,1.9rem);font-weight:900;margin:0 0 16px;line-height:1.5;}
.hero__lead{color:var(--muted);font-size:clamp(.86rem,2.4vw,1rem);margin:0 auto 30px;max-width:640px;}
.hero__sub{margin:14px 0 0;font-size:.8rem;color:var(--muted2);letter-spacing:.04em;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 20px;justify-content:center;}
.tag{font-size:.72rem;font-weight:700;padding:5px 13px;border-radius:999px;background:rgba(255,255,255,.09);border:1px solid var(--line);color:rgba(255,255,255,.88);}

/* ワードマーク（広告安全：副題なし） */
.wordmark{font-family:"Zen Kaku Gothic New",sans-serif;font-weight:900;font-size:clamp(2rem,7.4vw,3.6rem);line-height:1.12;margin:0 auto 20px;letter-spacing:.01em;max-width:13em;
  background:linear-gradient(135deg,#b3a0ff 0%,#7ad6ff 58%,#f4a6d6 100%);-webkit-background-clip:text;background-clip:text;color:transparent;filter:drop-shadow(0 4px 26px rgba(122,214,255,.4));}
.wordmark--final{font-size:clamp(1.5rem,5.5vw,2.4rem);margin:12px auto 18px;}

/* キャンペーン帯 */
.campaign{padding:34px 20px 8px;}
.campaign__wrap{max-width:var(--maxw);margin:0 auto;padding:30px 26px;border-radius:20px;background:linear-gradient(135deg,rgba(246,205,91,.10),rgba(76,196,255,.08));border:1px solid rgba(246,205,91,.26);display:grid;gap:22px;align-items:center;}
@media(min-width:900px){.campaign__wrap{grid-template-columns:1fr auto;grid-template-areas:"head cta" "benefits cta";column-gap:34px;}.campaign__head{grid-area:head;}.campaign__benefits{grid-area:benefits;}.campaign__wrap>.btn{grid-area:cta;}}
.campaign__title{font-family:"Zen Kaku Gothic New",sans-serif;font-size:clamp(1.2rem,3.4vw,1.7rem);font-weight:900;margin:0;}
.campaign__benefits{display:grid;gap:10px;}
.benefit{display:flex;align-items:center;gap:12px;font-size:.9rem;color:var(--muted);}
.benefit b{color:var(--text);margin-right:6px;}
.benefit__ico{font-size:1.15rem;}

/* KPI */
.kpi{padding:44px 20px;}
.kpi__grid{max-width:720px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
.kpi__card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:26px 12px;text-align:center;overflow:hidden;}
.kpi__card::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;background:linear-gradient(135deg,rgba(122,214,255,.5),transparent 50%,rgba(179,160,255,.5));-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;}
.kpi__num{display:block;font-family:"Zen Kaku Gothic New",sans-serif;font-size:clamp(1.9rem,6.5vw,2.8rem);font-weight:900;line-height:1;text-shadow:0 2px 24px currentColor;}
.kpi__cap{display:block;margin-top:10px;font-size:.72rem;font-weight:700;color:var(--muted);}

/* セクション */
.sec{padding:52px 20px;}
.sec__wrap{max-width:var(--maxw);margin:0 auto;}
.sechead{display:flex;align-items:flex-start;gap:18px;margin:0 0 24px;}
.sechead__no{font-family:"Cinzel",serif;font-weight:800;font-size:clamp(2.2rem,7vw,3.4rem);line-height:.85;background:linear-gradient(135deg,var(--cyan2),var(--violet2));-webkit-background-clip:text;background-clip:text;color:transparent;opacity:.95;}
.sechead__title{font-family:"Zen Kaku Gothic New",sans-serif;font-size:clamp(1.35rem,4vw,2.1rem);font-weight:900;line-height:1.35;margin:2px 0 0;}
.body{color:var(--muted);font-size:.95rem;margin:0 0 16px;}
.note-line{margin:18px 0 0;font-size:.78rem;color:var(--muted2);}

/* カード */
.cards{display:grid;gap:16px;grid-template-columns:1fr;}
@media(min-width:720px){.cards{grid-template-columns:repeat(2,1fr);}}
@media(min-width:980px){.cards{grid-template-columns:repeat(3,1fr);}}
.card{position:relative;border-radius:18px;padding:24px;background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(76,196,255,.04));transition:transform .22s var(--ease),box-shadow .22s var(--ease);}
.card::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;background:linear-gradient(140deg,rgba(122,214,255,.45),rgba(139,92,246,.22) 55%,rgba(246,205,91,.3));-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;}
.card:hover{transform:translateY(-4px);box-shadow:0 24px 50px rgba(76,196,255,.14);}
.card__ico{font-size:1.6rem;color:var(--cyan2);margin:0 0 10px;}
.card__h{font-family:"Zen Kaku Gothic New",sans-serif;font-size:1.08rem;font-weight:900;margin:0 0 11px;}
.card__p{margin:0;font-size:.86rem;color:var(--muted);}

/* キャラ（テキストのみ） */
.chars{display:grid;gap:16px;grid-template-columns:1fr;}
@media(min-width:720px){.chars{grid-template-columns:repeat(2,1fr);}}
.char{background:var(--surface);border:1px solid var(--line);border-radius:16px;overflow:hidden;}
.char--text .char__body{padding:24px 26px;}
.char__name{font-family:"Zen Kaku Gothic New",sans-serif;font-size:1.18rem;font-weight:900;margin:0 0 4px;}
.char__ruby{font-size:.66rem;color:var(--muted2);margin-left:8px;font-weight:500;}
.char__role{font-size:.75rem;color:var(--cyan2);font-weight:700;margin:0 0 10px;}
.char__p{font-size:.85rem;color:var(--muted);margin:0;}

/* 最終CTA */
.final{padding:84px 20px;}
.final__wrap{max-width:680px;margin:0 auto;text-align:center;padding:52px 30px;border-radius:24px;background:radial-gradient(120% 120% at 50% 0%,#2a0b1280,rgba(8,6,17,0) 70%),linear-gradient(180deg,rgba(255,255,255,.03),transparent);border:1px solid var(--line);}
.final__title{font-family:"Zen Kaku Gothic New",sans-serif;font-size:clamp(1.4rem,4.5vw,2.1rem);font-weight:900;line-height:1.5;margin:0 0 12px;}
.final__sub{color:var(--muted2);font-size:.88rem;margin:0 0 30px;}

/* コミュニティ */
.comm{display:grid;gap:14px;grid-template-columns:1fr;}
@media(min-width:720px){.comm{grid-template-columns:repeat(2,1fr);}}
.comm__card{display:flex;align-items:center;gap:18px;text-decoration:none;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px 22px;color:var(--text);transition:border-color .2s,transform .2s;}
.comm__card:hover{border-color:var(--cyan);transform:translateY(-2px);}
.comm__ico{width:50px;height:50px;flex:0 0 auto;border-radius:13px;background:rgba(0,0,0,.35);display:flex;align-items:center;justify-content:center;font-size:1.45rem;}
.comm__k{display:block;font-size:.68rem;color:var(--muted2);} .comm__v{display:block;font-weight:900;font-size:1.05rem;}

/* フッター */
.foot{padding:52px 20px;border-top:1px solid var(--line);margin-top:20px;}
.foot__wrap{max-width:var(--maxw);margin:0 auto;text-align:center;}
.foot__brand{font-family:"Cinzel",serif;font-weight:800;font-size:.82rem;letter-spacing:.26em;color:var(--muted2);margin:0 0 12px;}
.foot__copy{font-size:.72rem;color:var(--muted2);line-height:1.9;margin:0;}

/* リビール */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s var(--ease),transform .7s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;} .btn--steam::after{animation:none;}}

/* ==== 追加：SFWビジュアル ==== */
.sec__wrap--split{display:grid;gap:28px;}
@media(min-width:900px){.sec__wrap--split{grid-template-columns:1.05fr .95fr;align-items:center;gap:52px;}}
.mediaframe{position:relative;border-radius:18px;overflow:hidden;border:1px solid var(--line);box-shadow:0 24px 60px rgba(0,0,0,.55);}
.mediaframe::after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 0 1px rgba(246,205,91,.18);border-radius:inherit;pointer-events:none;}
.mediaframe img{width:100%;display:block;}
.mediaframe__cap{position:absolute;left:14px;bottom:12px;font-size:.7rem;font-weight:700;letter-spacing:.04em;color:rgba(255,255,255,.85);background:rgba(8,6,17,.6);padding:5px 10px;border-radius:999px;backdrop-filter:blur(6px);}
.char{display:flex;flex-direction:column;}
@media(min-width:480px){.char{flex-direction:row;}}
.char__img{flex:0 0 40%;min-height:190px;background:#120c22;position:relative;overflow:hidden;}
.char__img img{width:100%;height:100%;object-fit:cover;object-position:center 22%;transition:transform .5s var(--ease);}
.char:hover .char__img img{transform:scale(1.04);}
.char__body{padding:20px 22px;flex:1;}
.enemies{display:grid;gap:14px;grid-template-columns:1fr;}
@media(min-width:640px){.enemies{grid-template-columns:repeat(2,1fr);}}
.enemy{margin:0;position:relative;border-radius:16px;overflow:hidden;border:1px solid var(--line);background:var(--surface);display:flex;flex-direction:column;}
.enemy img{width:100%;aspect-ratio:462/532;object-fit:cover;display:block;}
.enemy figcaption{padding:14px 16px;font-size:.82rem;color:var(--muted);line-height:1.6;}
.enemy figcaption b{display:block;color:var(--text);font-family:"Zen Kaku Gothic New",sans-serif;font-weight:900;font-size:1rem;margin-bottom:2px;}

/* ==== ヒーロー：変身デュオ（SFW顔クロップ） ==== */
.hero__inner{padding-bottom:40px;}
.hero__duo{position:relative;display:flex;justify-content:center;align-items:center;gap:22px;margin:38px auto 0;max-width:560px;}
.duo{margin:0;position:relative;width:min(40%,220px);border-radius:18px;overflow:hidden;border:1px solid var(--line);box-shadow:0 22px 50px rgba(0,0,0,.5);background:#120c22;transition:transform .5s var(--ease);}
.duo img{width:100%;aspect-ratio:1/1.05;object-fit:cover;object-position:center 30%;display:block;}
.duo figcaption{position:absolute;left:0;right:0;bottom:0;padding:8px 10px;font-size:.72rem;font-weight:900;font-family:"Zen Kaku Gothic New",sans-serif;text-align:center;background:linear-gradient(to top,rgba(8,6,17,.9),transparent);color:#fff;}
.duo--a{transform:rotate(-4deg) translateY(6px);} .duo--b{transform:rotate(4deg) translateY(-4px);}
.duo--a::after,.duo--b::after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 0 1px rgba(246,205,91,.22);border-radius:inherit;pointer-events:none;}
.duo__arrow{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);font-family:"Zen Kaku Gothic New",sans-serif;font-weight:900;font-size:.78rem;letter-spacing:.1em;color:var(--gold);
  background:rgba(8,6,17,.8);border:1px solid rgba(246,205,91,.5);border-radius:999px;padding:6px 12px;box-shadow:0 0 30px rgba(246,205,91,.25);}
@media(min-width:900px){.hero__inner{display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:40px;text-align:left;padding-top:80px;}
  .hero__inner>*{grid-column:1;} .hero__duo{grid-column:2;grid-row:1/span 8;margin:0;max-width:none;justify-self:center;}
  .tag-row{justify-content:flex-start;} .hero__lead{margin-left:0;} .wordmark{margin-left:0;}}
/* キャラカード：モバイルは固定アスペクト、PCは横並び */
.char__img{flex:none;aspect-ratio:16/10;min-height:0;}
@media(min-width:480px){.char__img{flex:0 0 40%;aspect-ratio:auto;min-height:200px;}}
/* ARENA ENEMIES：横並び・コンパクト */
.enemies{grid-template-columns:repeat(2,1fr);gap:12px;}
.enemy img{aspect-ratio:1/1;object-position:center 35%;}
.enemy figcaption{padding:10px 12px;font-size:.76rem;line-height:1.5;}
.enemy figcaption b{font-size:.9rem;}
@media(min-width:640px){.enemies{max-width:640px;} .enemy img{aspect-ratio:5/4;}}

/* ==== 堕ちた聖女達：ロゴプレート＆スタッフ ==== */
.hero__logo{width:min(720px,92%);margin:0 auto 22px;border-radius:14px;box-shadow:0 18px 50px rgba(0,0,0,.55);border:1px solid rgba(243,216,143,.25);}
.staff{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 18px;margin:0 0 6px;font-size:.78rem;color:var(--muted);}
.staff b{color:var(--text);margin-right:5px;}
.quote{font-family:"Zen Kaku Gothic New",sans-serif;font-weight:900;font-size:.95rem;color:var(--gold);margin:0 0 8px;}
.final__logo{width:min(560px,90%);margin:12px auto 20px;border-radius:12px;border:1px solid rgba(243,216,143,.25);}
/* キャラ画像：顔全体が入る比率に */
.char__img{min-height:0;aspect-ratio:4/3;}
.char__img img{object-fit:cover;object-position:center 40%;}
@media(min-width:480px){.char__img{aspect-ratio:auto;min-height:230px;}}