/* =========================================================
   堕ちた聖女達～届かなかった祈り～ JP 全年齢（広告遷移先）LP
   参考デザイン（kyano-works）を踏襲した全面リニューアル版。
   深紅 × ゴールド × 明朝見出し。No framework / ビルド不要。
   ========================================================= */

:root{
  --bg:#0e0505; --bg2:#160809;
  --panel:rgba(255,255,255,.045); --panel2:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.10); --line-gold:rgba(243,216,143,.30);
  --crimson:#c8283f; --crimson2:#a3213a; --crimson3:#6b1230; --crimson-soft:#e0546f;
  --gold:#f3d88f; --gold2:#e8c777; --gold-deep:#c9a24a;
  --text:#f6ece6; --muted:rgba(246,236,230,.66); --muted2:rgba(246,236,230,.40);
  --maxw:1180px; --header-h:64px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --serif:"Shippori Mincho",serif;
  --sans:"Noto Sans JP",system-ui,-apple-system,"Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;
  --latin:"Cinzel",serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 12px);}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--sans);line-height:1.85;overflow-x:hidden;
  -webkit-tap-highlight-color:transparent;
  background-image:
    radial-gradient(55% 40% at 88% -5%,rgba(243,216,143,.08),transparent 60%),
    radial-gradient(55% 45% at 0% 26%,rgba(163,33,58,.16),transparent 60%);
  background-attachment:fixed;
}
img{max-width:100%;display:block;}
a{color:inherit;}
.sp-only{display:inline;} @media(min-width:760px){.sp-only{display:none;}}
.visually-hidden{position:absolute!important;width:1px;height:1px;margin:-1px;padding:0;border:0;clip:rect(0 0 0 0);clip-path:inset(50%);overflow:hidden;white-space:nowrap;}

/* 共通見出し */
.eyebrow{font-family:var(--latin);font-weight:700;letter-spacing:.28em;font-size:.74rem;
  color:var(--gold);text-transform:uppercase;margin:0 0 12px;}
.section{padding:84px 20px;}
.section__head{text-align:center;margin:0 auto 42px;}
.section__title{font-family:var(--serif);font-weight:800;letter-spacing:.16em;margin:0;
  font-size:clamp(1.7rem,4.6vw,2.6rem);color:var(--text);}
.section__title--left{text-align:left;letter-spacing:.1em;}
.lead{color:var(--text);font-size:1.08rem;font-weight:700;margin:0 0 18px;}
.body{color:var(--muted);font-size:1rem;margin:0 0 16px;}
.quote{margin:26px 0 0;padding-left:16px;border-left:3px solid var(--crimson);
  font-family:var(--serif);font-size:1.12rem;color:var(--gold);line-height:1.7;}
.quote cite{display:block;margin-top:8px;font-size:.85rem;color:var(--muted);font-style:normal;font-family:var(--sans);}

/* リビール */
.reveal{opacity:0;transform:translateY(22px);
  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;transition:none;}}

/* ボタン */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:11px;
  padding:14px 26px;border-radius:13px;font-family:var(--sans);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--sm{padding:10px 20px;font-size:.9rem;border-radius:11px;}
.btn--xl{padding:19px 44px;font-size:1.16rem;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,.34);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 3.8s var(--ease) infinite;}
@keyframes sheen{0%,60%{left:-60%}100%{left:130%}}
.btn.is-soon{filter:saturate(.9);}
.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%);}

/* ===== 固定ヘッダー ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:50;height:var(--header-h);
  display:flex;align-items:center;border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease);}
.site-header.is-scrolled{background:rgba(10,4,4,.86);backdrop-filter:blur(10px);border-bottom-color:var(--line);}
.site-header__inner{max-width:none;margin:0;width:100%;padding:0 26px;display:flex;align-items:center;gap:20px;}
.site-header__logo{display:block;line-height:0;}
.site-header__logo img{height:38px;width:auto;}
.nav{display:flex;gap:24px;margin-left:32px;}
.site-header .btn--sm{margin-left:0;}
.nav a{color:rgba(246,236,230,.82);text-decoration:none;font-family:var(--latin);
  font-weight:600;font-size:.82rem;letter-spacing:.14em;transition:color .2s;}
.nav a:hover{color:var(--gold);}

/* 言語切替 */
.lang-switch{display:flex;align-items:center;gap:2px;margin-left:auto;
  border:1px solid var(--line-gold);border-radius:999px;padding:3px;background:rgba(14,5,5,.42);}
.lang-switch__item{font-family:var(--latin);font-weight:600;font-size:.72rem;letter-spacing:.06em;
  color:rgba(246,236,230,.72);text-decoration:none;padding:5px 11px;border-radius:999px;line-height:1;
  transition:color .2s var(--ease),background .2s var(--ease);white-space:nowrap;}
.lang-switch__item:hover{color:var(--gold);}
.lang-switch__item.is-active{background:linear-gradient(120deg,var(--crimson),var(--crimson3));color:#fff;
  cursor:default;pointer-events:none;}

.nav-toggle{display:none;flex-direction:column;gap:5px;width:42px;height:42px;
  align-items:center;justify-content:center;background:none;border:none;cursor:pointer;}
.nav-toggle span{width:22px;height:2px;background:var(--text);transition:.3s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ===== ヒーロー ===== */
.hero{position:relative;height:100svh;min-height:600px;overflow:hidden;
  display:flex;align-items:center;justify-content:center;}
.hero__bg{position:absolute;inset:0;background:url(./assets/bg/church-warm.jpg) center/cover no-repeat;
  transform:scale(1.05);}
.hero__scrim{position:absolute;inset:0;
  background:
    radial-gradient(120% 85% at 50% 18%,transparent 32%,rgba(14,5,5,.5) 74%,rgba(14,5,5,.96) 100%),
    linear-gradient(to bottom,rgba(14,5,5,.4),rgba(14,5,5,.12) 42%,rgba(14,5,5,.9));}
.hero__char{position:absolute;bottom:0;height:min(90%,760px);width:auto;z-index:1;
  filter:drop-shadow(0 14px 44px rgba(0,0,0,.6));}
.hero__char--yuri{right:50%;margin-right:min(6vw,90px);}
.hero__char--naomi{left:50%;margin-left:min(6vw,90px);}
.hero__center{position:relative;z-index:2;text-align:center;padding:0 20px;margin-bottom:6vh;}
.hero__eyebrow{font-family:var(--latin);font-weight:700;letter-spacing:.26em;
  font-size:clamp(.56rem,1.8vw,.76rem);color:var(--gold);text-transform:uppercase;
  margin:0 0 18px;text-shadow:0 2px 20px rgba(243,216,143,.4);}
.hero__logo{width:min(560px,76vw);height:auto;margin:0 auto;
  filter:drop-shadow(0 10px 34px rgba(0,0,0,.65)) drop-shadow(0 0 30px rgba(200,40,63,.25));}
.hero__scroll{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);z-index:3;
  text-decoration:none;color:var(--gold);font-family:var(--latin);font-weight:600;
  letter-spacing:.24em;font-size:.66rem;display:flex;flex-direction:column;align-items:center;gap:8px;}
.hero__scroll::after{content:"";width:1px;height:34px;background:linear-gradient(var(--gold),transparent);
  animation:scrollcue 1.8s var(--ease) infinite;}
@keyframes scrollcue{0%{opacity:0;transform:scaleY(.3);transform-origin:top}50%{opacity:1}100%{opacity:0;transform:scaleY(1);transform-origin:top}}

/* ===== STEAM 発売＆CTA ===== */
.steam-band{position:relative;text-align:center;padding:82px 20px 72px;
  background:linear-gradient(180deg,rgba(22,8,9,.96),rgba(14,5,5,1));}
.steam-band__inner{max-width:760px;margin:0 auto;}
.steam-band__title{font-family:var(--serif);font-weight:800;letter-spacing:.05em;
  font-size:clamp(2rem,6.5vw,3.3rem);margin:.15em 0 .1em;line-height:1.25;}
.steam-band__title span{color:var(--gold);}
.steam-band__sub{color:var(--muted);letter-spacing:.22em;font-size:.95rem;margin:0 0 32px;}
.steam-band__note{margin:16px 0 0;color:var(--muted2);font-size:.82rem;letter-spacing:.02em;}
.benefits{list-style:none;display:flex;flex-wrap:wrap;gap:12px;justify-content:center;padding:0;margin:36px 0 0;}
.benefits li{display:flex;align-items:center;gap:8px;background:var(--panel);
  border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-size:.84rem;color:var(--muted);}
.benefits b{color:var(--text);}
.benefits__ico{font-size:1rem;}

/* ===== SCENES カルーセル ===== */
.scenes{padding-bottom:72px;}
.carousel{position:relative;max-width:980px;margin:0 auto;padding:0 8px;}
.carousel__track{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
  scroll-behavior:smooth;-webkit-overflow-scrolling:touch;scrollbar-width:none;}
.carousel__track::-webkit-scrollbar{display:none;}
.scene-slide{flex:0 0 100%;scroll-snap-align:center;margin:0;border-radius:16px;overflow:hidden;
  border:1px solid var(--line);background:#000;}
.scene-slide img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.carousel__arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:3;
  width:46px;height:46px;border-radius:50%;border:1px solid var(--line-gold);
  background:rgba(14,5,5,.62);color:var(--gold);font-size:1.7rem;line-height:1;cursor:pointer;
  backdrop-filter:blur(4px);transition:background .2s,transform .2s;display:grid;place-items:center;}
.carousel__arrow:hover{background:rgba(200,40,63,.75);color:#fff;}
.carousel__arrow--prev{left:-6px;} .carousel__arrow--next{right:-6px;}
.carousel__dots{display:flex;gap:8px;justify-content:center;margin-top:18px;}
.carousel__dots .dot{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.22);
  border:none;padding:0;cursor:pointer;transition:width .25s,background .25s;}
.carousel__dots .dot.is-active{background:var(--gold);width:24px;border-radius:5px;}

/* ===== STORY ===== */
.story{padding:0;}
.story__grid{display:grid;gap:0;max-width:none;margin:0;grid-template-columns:1fr;align-items:stretch;}
@media(min-width:860px){.story__grid{grid-template-columns:1.05fr .95fr;}}
.story__media{overflow:hidden;}
.story__media img{width:100%;height:100%;min-height:300px;object-fit:cover;display:block;}
.story__body{max-width:620px;padding:64px 24px;}
@media(min-width:860px){.story__body{padding:96px clamp(32px,5vw,72px);align-self:center;}}

/* ===== CHARACTERS ===== */
.chars{display:grid;gap:26px;max-width:var(--maxw);margin:0 auto;grid-template-columns:1fr;}
@media(min-width:760px){.chars{grid-template-columns:1fr 1fr;}}
.char{background:var(--panel);border:1px solid var(--line);border-radius:18px;overflow:hidden;
  transition:border-color .3s,transform .3s;}
.char:hover{border-color:var(--line-gold);transform:translateY(-3px);}
.char__visual{position:relative;aspect-ratio:5/4;overflow:hidden;display:flex;align-items:flex-start;justify-content:center;}
.char__visual--warm{background:url(./assets/bg/church-warm.jpg) center/cover;}
.char__visual--cool{background:url(./assets/bg/church-blue.jpg) center/cover;}
.char__visual::after{content:"";position:absolute;inset:0;
  background:linear-gradient(to bottom,transparent 55%,rgba(14,5,5,.92));}
.char__tachie{position:relative;z-index:1;height:128%;width:auto;object-fit:contain;
  filter:drop-shadow(0 10px 26px rgba(0,0,0,.55));}
.char__body{padding:22px 24px 28px;}
.char__role{font-family:var(--latin);font-weight:600;letter-spacing:.1em;color:var(--gold2);
  font-size:.78rem;margin:0 0 6px;}
.char__name{font-family:var(--serif);font-weight:800;font-size:1.7rem;letter-spacing:.08em;
  margin:0 0 14px;display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;}
.char__cv{font-family:var(--sans);font-weight:500;font-size:.8rem;color:var(--muted);letter-spacing:.04em;}
.char__quote{margin:16px 0 0;color:var(--crimson-soft);font-family:var(--serif);font-size:1.14rem;}

/* ===== FEATURES ===== */
.feature-grid{display:grid;gap:16px;max-width:var(--maxw);margin:0 auto;
  grid-template-columns:repeat(auto-fit,minmax(210px,1fr));}
.feature{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:24px 22px;
  transition:border-color .3s,transform .3s;}
.feature:hover{border-color:var(--line-gold);transform:translateY(-3px);}
.feature__ico{font-size:1.8rem;display:block;margin-bottom:10px;}
.feature h3{font-size:1.02rem;font-weight:700;margin:0 0 8px;color:var(--text);}
.feature p{margin:0;color:var(--muted);font-size:.9rem;line-height:1.75;}

/* ===== SPECS ===== */
.spec-table{max-width:840px;margin:0 auto;}
.spec-row{display:grid;grid-template-columns:210px 1fr;gap:18px;padding:17px 8px;border-bottom:1px solid var(--line);}
.spec-row:first-child{border-top:1px solid var(--line);}
.spec-row dt{color:var(--gold2);font-weight:700;font-size:.9rem;letter-spacing:.05em;margin:0;}
.spec-row dd{margin:0;color:var(--text);font-size:.98rem;}
@media(max-width:640px){.spec-row{grid-template-columns:1fr;gap:4px;}}

/* ===== FOLLOW ===== */
.follow-cards{display:grid;gap:16px;max-width:820px;margin:0 auto;grid-template-columns:1fr;}
@media(min-width:640px){.follow-cards{grid-template-columns:1fr 1fr;}}
.follow-card{display:flex;align-items:center;gap:16px;padding:18px 22px;border-radius:14px;
  background:var(--panel);border:1px solid var(--line);text-decoration:none;color:var(--text);
  transition:border-color .3s,transform .3s;}
.follow-card:hover{border-color:var(--line-gold);transform:translateY(-2px);}
.follow-card__ico{width:46px;height:46px;flex:0 0 auto;border-radius:12px;display:grid;place-items:center;
  font-size:1.4rem;background:rgba(255,255,255,.06);}
.follow-card__ico--dc{color:#9aa9ff;}
.follow-card__txt{display:flex;flex-direction:column;}
.follow-card__k{font-size:.76rem;color:var(--muted);letter-spacing:.06em;}
.follow-card__v{font-weight:700;font-size:1.02rem;}

/* ===== 最終CTA（枠飾り付きパネル） ===== */
.c-gold{color:var(--gold);}
.frame{position:relative;}
.frame::before,.frame::after{content:"";position:absolute;width:26px;height:26px;pointer-events:none;
  border:2px solid rgba(243,216,143,.6);}
.frame::before{top:12px;left:12px;border-right:0;border-bottom:0;}
.frame::after{bottom:12px;right:12px;border-left:0;border-top:0;}
.frame--lg::before,.frame--lg::after{width:44px;height:44px;top:16px;left:16px;}
.frame--lg::after{top:auto;left:auto;bottom:16px;right:16px;}
.final{padding:90px 20px;}
.final__panel{position:relative;max-width:760px;margin:0 auto;text-align:center;padding:58px 36px;
  border-radius:22px;border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(34,12,14,.9),rgba(14,5,5,.94));
  box-shadow:0 30px 80px rgba(0,0,0,.4);}
.final__panel .eyebrow{margin-bottom:14px;}
.final__logo{width:min(420px,74%);margin:8px auto 24px;
  filter:drop-shadow(0 8px 26px rgba(0,0,0,.5)) drop-shadow(0 0 22px rgba(200,40,63,.2));}
.final__title{font-family:var(--serif);font-weight:800;letter-spacing:.06em;line-height:1.6;
  font-size:clamp(1.4rem,4vw,2.1rem);margin:0 0 14px;}
.final__note{margin:0 0 26px;color:var(--muted2);font-size:.84rem;}

/* ===== フッター ===== */
.site-footer{text-align:center;padding:54px 20px 64px;border-top:1px solid var(--line);}
.site-footer__logo{width:180px;margin:0 auto 16px;opacity:.95;}
.site-footer__jp{margin:0;color:var(--muted);font-size:.9rem;}
.site-footer__en{margin:6px 0 0;color:var(--muted2);font-size:.78rem;letter-spacing:.12em;}
.site-footer__copy{margin:18px 0 0;color:var(--muted2);font-size:.76rem;letter-spacing:.02em;}
.site-footer__copy a{color:var(--gold2);text-decoration:none;}
.site-footer__copy a:hover{text-decoration:underline;}

/* ===== 追従CTA（モバイル） ===== */
.sticky{position:fixed;left:0;right:0;bottom:0;z-index:45;
  padding:12px 16px calc(12px + env(safe-area-inset-bottom,0px));
  background:linear-gradient(to top,rgba(8,4,4,.98) 45%,transparent);
  opacity:0;pointer-events:none;transition:opacity .3s var(--ease);display:none;}
.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;color:var(--text);}
.sticky .btn{white-space:nowrap;}

/* ===== レスポンシブ ===== */
@media(max-width:860px){
  .nav{position:fixed;top:var(--header-h);left:0;right:0;flex-direction:column;gap:2px;
    margin:0;padding:14px 20px 20px;background:rgba(10,4,4,.98);backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);transform:translateY(-130%);
    transition:transform .32s var(--ease);}
  .nav.is-open{transform:translateY(0);}
  .nav a{padding:13px 4px;font-size:1rem;border-bottom:1px solid rgba(255,255,255,.05);}
  .nav-toggle{display:flex;margin-left:auto;}
  .site-header .btn--sm{display:none;}
  .sticky{display:block;}
}
@media(max-width:720px){
  .section{padding:64px 18px;}
  .hero__char{height:52%;opacity:.92;}
  .hero__char--yuri{right:50%;margin-right:min(1vw,6px);}
  .hero__char--naomi{left:50%;margin-left:min(1vw,6px);}
  .hero__logo{width:84vw;}
  .hero__center{margin-bottom:10vh;}
  .char__name{font-size:1.5rem;}
}
@media(max-width:400px){
  .hero__char{height:46%;}
  .benefits li{font-size:.78rem;}
}