/* =====================================================================
   bibi Night Sky — 夜空 × 黒猫 × 深い眠り
   ===================================================================== */
:root {
  --bn-navy: #080F24;
  --bn-blue: #14213D;
  --bn-gold: #C8AD78;
  --bn-moon: #F2F0E8;
  --bn-purple: #35304F;
  --bn-cat: #111116;
  --bn-serif-ja: "Shippori Mincho", "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --bn-serif-en: "Cormorant Garamond", "Times New Roman", serif;
  --bn-header-h: 100px;
  --bn-header-x: 48px;
  --bn-vh: 100vh;
}
@supports (height: 100svh) { :root { --bn-vh: 100svh; } }

/* ---- 既存テーマの要素を隠す（全ページ：ヘッダー/フッター、トップのみ：旧FV等） ---- */
body.bibi-night-home .header_top,
body.bibi-night-home #main_contents > .top_nav,
body.bibi-night-home #main_contents .concept_box,
body.bibi-night-home #main_contents .appeal,
body.bibi-night-home .top_access,
body.bibi-night-home .menuArea2 {
  display: none !important;
}
/* 旧ヘッダー：電話ポップアップ(.nav_sp)だけ残して非表示 */
body.bibi-night #header { position: fixed !important; top: 0; left: 0; right: 0; height: 0 !important; min-height: 0 !important; padding: 0 !important; margin: 0 !important; background: none !important; border: 0 !important; box-shadow: none !important; z-index: 1200; overflow: visible; }
body.bibi-night #header > *:not(.nav_sp) { display: none !important; }
body.bibi-night #header .nav_sp { display: none; margin-top: 0; z-index: 1300; }
/* 旧フッター：下部の固定ボタン(#slidemenu)だけ残して非表示 */
body.bibi-night #footer_wrapper { background: none !important; padding: 0 !important; margin: 0 !important; border: 0 !important; }
body.bibi-night #footer_wrapper #footer_top,
body.bibi-night #footer_wrapper #footer_bottom_inner { display: none !important; }
body.bibi-night #footer_bottom { background: none !important; padding: 0 !important; margin: 0 !important; }
body.bibi-night.header_fix,
body.bibi-night.header_fix2 { padding-top: 0 !important; }
.mobile body.bibi-night-home.mobile_header_fix #main_contents { margin-top: 0 !important; }
body.bibi-night-home #main_contents { margin-top: 0 !important; }
body.bibi-night-home { background: var(--bn-navy); }
body.bibi-night { overflow-x: hidden; }
html.bn-lock, html.bn-lock body { overflow: hidden !important; }
/* テーマの a:hover（下線・茶色背景）を打ち消す */
.bn-header a, .bn-header a:hover, .bn-menu a, .bn-menu a:hover, .bn-night a, .bn-night a:hover {
  text-decoration: none !important; background-color: transparent !important;
}
.bn-menu__nav a, .bn-menu__nav a:visited, .bn-menu__nav a:hover { color: #fff !important; }
.bn-menu__foot-link, .bn-menu__foot-link:visited { color: rgba(242,240,232,.82) !important; }
.bn-menu__foot-link:hover { color: #fff !important; }
.bn-btn, .bn-btn:visited, .bn-btn:hover { background-color: rgba(8,15,36,.25) !important; }

/* =====================================================================
   HEADER（透過・固定）
   ===================================================================== */
.bn-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--bn-header-h);
  padding: 0 var(--bn-header-x);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
  transition: background-color .5s ease, height .4s ease, backdrop-filter .5s ease, opacity .8s ease, transform .8s ease;
  opacity: 0;
  transform: translateY(-8px);
  box-sizing: border-box;
}
.bn-header.is-in { opacity: 1; transform: none; }
.bn-header.is-scrolled {
  height: calc(var(--bn-header-h) - 20px);
  background: rgba(8, 15, 36, 0.42);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  backdrop-filter: blur(14px) saturate(1.2);
}
.bn-header.is-hidden { opacity: 0; pointer-events: none; }
.bn-header--solid { background: rgba(8, 15, 36, 0.72); -webkit-backdrop-filter: blur(14px) saturate(1.2); backdrop-filter: blur(14px) saturate(1.2); height: calc(var(--bn-header-h) - 20px); }
.bn-header--solid .bn-header__logo img { height: 46px; }
.bn-header--solid.is-scrolled { background: rgba(8, 15, 36, 0.85); }
.bn-header__logo { display: block; line-height: 0; }
.bn-header__logo img {
  height: 54px; width: auto; display: block; color: transparent; font-size: 0; line-height: 0;
  filter: drop-shadow(0 2px 12px rgba(8, 15, 36, 0.45));
  transition: height .4s ease, opacity .3s;
}
.bn-header.is-scrolled .bn-header__logo img { height: 46px; }
.bn-header__logo:hover img { opacity: .8; }
.bn-header__menu {
  appearance: none; -webkit-appearance: none;
  background: none; border: 0; padding: 10px 0 10px 14px; margin: 0;
  cursor: pointer; color: #fff;
  display: inline-flex; align-items: center; gap: 16px;
  min-height: 44px; min-width: 44px;
  font-family: var(--bn-serif-en);
  text-shadow: 0 1px 10px rgba(8, 15, 36, 0.5);
}
.bn-header__menu-label {
  font-size: 15px; letter-spacing: .32em; font-weight: 400; line-height: 1;
  transform: translateX(.16em);
}
.bn-header__burger {
  width: 30px; height: 14px; position: relative; display: block;
}
.bn-header__burger i {
  position: absolute; left: 0; right: 0; height: 1px; background: #fff;
  transition: transform .4s cubic-bezier(.22,.61,.36,1), width .4s ease;
  display: block;
}
.bn-header__burger i:first-child { top: 0; }
.bn-header__burger i:last-child { bottom: 0; width: 70%; }
.bn-header__menu:hover .bn-header__burger i:last-child { width: 100%; }

/* =====================================================================
   FULLSCREEN MENU
   ===================================================================== */
.bn-menu {
  position: fixed; inset: 0; z-index: 1100;
  background: radial-gradient(120% 80% at 80% 10%, #1a2448 0%, var(--bn-navy) 55%, #05091a 100%);
  color: #fff;
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity .6s cubic-bezier(.22,.61,.36,1), visibility 0s linear .6s;
  overflow: hidden;
  font-family: var(--bn-serif-en);
}
.bn-menu.is-open {
  opacity: 1; visibility: visible; pointer-events: auto;
  transition: opacity .7s cubic-bezier(.22,.61,.36,1), visibility 0s;
}
.bn-menu__stars { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .9; }
.bn-menu__moon {
  position: absolute; top: 8%; right: 10%; width: 180px; height: 180px; border-radius: 50%;
  background: radial-gradient(circle at 40% 38%, rgba(242,240,232,.18), rgba(242,240,232,.04) 55%, transparent 72%);
  filter: blur(2px);
  pointer-events: none;
}
.bn-cat.bn-menu__cat {
  position: absolute; right: -2vw; bottom: -1vh;
  width: clamp(110px, 12vw, 190px); height: auto; opacity: .35;
  pointer-events: none;
}
.bn-menu__close {
  position: absolute; top: 0; right: var(--bn-header-x); z-index: 5;
  height: var(--bn-header-h);
  appearance: none; -webkit-appearance: none; background: none; border: 0; cursor: pointer;
  color: #fff; font-family: var(--bn-serif-en); font-size: 15px; letter-spacing: .32em;
  padding: 10px 0 10px 14px; min-width: 44px;
  display: inline-flex; align-items: center; gap: 14px;
  opacity: 0; transform: translateY(-6px);
  transition: opacity .5s ease .2s, transform .5s ease .2s;
}
.bn-menu__close::after {
  content: ""; width: 22px; height: 22px; display: block;
  background:
    linear-gradient(#fff, #fff) center/100% 1px no-repeat,
    linear-gradient(#fff, #fff) center/1px 100% no-repeat;
  transform: rotate(45deg);
}
.bn-menu.is-open .bn-menu__close { opacity: 1; transform: none; }
.bn-menu__close:focus-visible, .bn-header__menu:focus-visible { outline: 1px solid rgba(200,173,120,.7); outline-offset: 4px; }
.bn-menu__close:focus:not(:focus-visible), .bn-header__menu:focus:not(:focus-visible) { outline: none; }
.bn-menu__nav {
  position: absolute; inset: 0; z-index: 1;
  display: flex; align-items: center; justify-content: center;
  padding: var(--bn-header-h) 24px 120px;
  box-sizing: border-box;
}
.bn-menu__nav ul { list-style: none; margin: 0; padding: 0; text-align: center; }
.bn-menu__nav li {
  margin: 0; padding: 0;
  opacity: 0; transform: translateY(18px);
  transition: opacity .7s cubic-bezier(.22,.61,.36,1), transform .7s cubic-bezier(.22,.61,.36,1);
  transition-delay: 0s;
}
.bn-menu.is-open .bn-menu__nav li {
  opacity: 1; transform: none;
  transition-delay: calc(.18s + var(--i) * .08s);
}
.bn-menu__nav a {
  display: inline-block; text-decoration: none; color: #fff;
  padding: clamp(6px, 1.2vh, 14px) 16px;
  transition: opacity .3s;
}
.bn-menu__nav a:hover { opacity: .65; color: #fff; }
.bn-menu__en {
  display: block; font-family: var(--bn-serif-en); font-weight: 300;
  font-size: clamp(30px, 4.6vh, 46px); letter-spacing: .18em; line-height: 1.15;
}
.bn-menu__ja {
  display: block; font-family: var(--bn-serif-ja);
  font-size: clamp(11px, 1.3vh, 13px); letter-spacing: .28em; color: var(--bn-gold);
  margin-top: 2px;
}
.bn-menu__foot {
  position: absolute; left: 0; right: 0; z-index: 2; bottom: clamp(24px, 5vh, 48px);
  display: flex; justify-content: center; gap: clamp(14px, 3vw, 40px);
  padding: 0 20px;
  opacity: 0; transform: translateY(10px);
  transition: opacity .7s ease, transform .7s ease;
}
.bn-menu.is-open .bn-menu__foot { opacity: 1; transform: none; transition-delay: calc(.2s + var(--i) * .08s); }
.bn-menu__foot-link {
  color: rgba(242,240,232,.82); text-decoration: none;
  font-family: var(--bn-serif-ja); font-size: 13px; letter-spacing: .12em;
  padding: 10px 2px; border-bottom: 1px solid rgba(200,173,120,.35);
  display: inline-flex; gap: 10px; align-items: baseline; min-height: 44px; box-sizing: border-box;
}
.bn-menu__foot-link span { font-family: var(--bn-serif-en); font-size: 11px; letter-spacing: .3em; color: var(--bn-gold); }
.bn-menu__foot-link:hover { color: #fff; }

/* =====================================================================
   NIGHT（FV〜CONCEPT を包む・sticky な空の上をコンテンツが流れる）
   ===================================================================== */
.bn-night {
  position: relative;
  background: var(--bn-navy);
  color: var(--bn-moon);
  font-family: var(--bn-serif-ja);
  overflow: clip;
  width: 100%;
}
.bn-night *, .bn-night *::before, .bn-night *::after { box-sizing: border-box; }
.bn-night h2, .bn-night p { margin: 0; padding: 0; }

.bn-sky {
  position: sticky; top: 0; z-index: 0;
  height: var(--bn-vh);
  overflow: hidden;
  background: radial-gradient(90% 70% at 50% 110%, #1b2650 0%, rgba(27,38,80,0) 60%),
              linear-gradient(180deg, #05091a 0%, var(--bn-navy) 35%, #0f1a3a 75%, #182448 100%);
  opacity: 0;
}
.bn-sky__haze {
  position: absolute; inset: -10%;
  background:
    radial-gradient(40% 40% at 72% 22%, rgba(242,240,232,.05), transparent 70%),
    radial-gradient(60% 50% at 30% 80%, rgba(53,48,79,.55), transparent 70%),
    radial-gradient(50% 40% at 85% 85%, rgba(20,33,61,.9), transparent 70%);
  pointer-events: none;
}
.bn-photo { position: absolute; inset: 0; opacity: 0; }
.bn-photo picture, .bn-photo img { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.bn-photo img { object-fit: cover; object-position: 62% 100%; transform-origin: 60% 100%; will-change: transform; }
.bn-photo::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(8,15,36,.55) 0%, rgba(8,15,36,.15) 45%, rgba(8,15,36,0) 70%), linear-gradient(180deg, rgba(8,15,36,.35) 0%, rgba(8,15,36,0) 30%); }
.bn-sky__tint { position: absolute; inset: 0; background: linear-gradient(180deg, #14213D, #1c2a55); opacity: 0; pointer-events: none; }
.bn-stars { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.bn-moonlight {
  position: absolute; inset: -20%;
  background: radial-gradient(40% 40% at 81% 24%, rgba(242,240,232,.22), rgba(242,240,232,.05) 45%, transparent 70%);
  opacity: 0; pointer-events: none;
}
.bn-moon {
  position: absolute;
  top: 12vh; right: 11vw;
  width: clamp(150px, 17vw, 290px); height: clamp(150px, 17vw, 290px);
  opacity: 0;
  transform-origin: 50% 50%;
}
.bn-moon__in { position: absolute; inset: 0; transform-origin: 50% 50%; }
.bn-moon__glow {
  position: absolute; inset: -60%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242,240,232,.35) 0%, rgba(242,240,232,.12) 28%, rgba(242,240,232,.03) 50%, transparent 68%);
  animation: bn-moonglow 7s ease-in-out infinite;
}
.bn-moon__disc {
  position: absolute; inset: 0; border-radius: 50%;
  background:
    radial-gradient(circle at 36% 34%, #fffdf6 0%, #f4f1e6 35%, #d9d6cb 70%, #b9b7ae 100%);
  box-shadow: 0 0 40px 8px rgba(242,240,232,.35), 0 0 120px 30px rgba(242,240,232,.12), inset -14px -12px 36px rgba(53,48,79,.35);
  overflow: hidden;
}
.bn-moon__disc::before {
  /* クレーターの気配（控えめ） */
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  background:
    radial-gradient(22% 22% at 64% 42%, rgba(53,48,79,.07), transparent 70%),
    radial-gradient(14% 14% at 38% 64%, rgba(53,48,79,.06), transparent 70%),
    radial-gradient(30% 30% at 72% 72%, rgba(53,48,79,.06), transparent 70%),
    radial-gradient(40% 40% at 45% 30%, rgba(255,255,255,.08), transparent 70%);
}
@keyframes bn-moonglow { 0%, 100% { opacity: .85; transform: scale(1); } 50% { opacity: 1; transform: scale(1.06); } }

.bn-catwrap {
  position: absolute;
  left: 60vw; bottom: 0;
  width: clamp(150px, 14vw, 230px);
  opacity: 0;
  transform-origin: 50% 100%;
  will-change: transform;
}
.bn-cat { width: 100%; height: auto; display: block; overflow: visible; }
.bn-cat__body { transform-origin: 304px 1296px; animation: bn-breath 7s ease-in-out infinite; }
.bn-cat__eyes { transform-origin: 462px 104px; }
.bn-cat__eyes.is-blink { animation: bn-blink .3s ease-in-out 1; }
@keyframes bn-blink { 0%, 100% { transform: scaleY(1); } 50% { transform: scaleY(.1); } }
@keyframes bn-breath { 0%, 100% { transform: scale(1, 1); } 50% { transform: scale(1.006, 1.012); } }

/* ---- コンテンツ層（空の上を流れる） ---- */
.bn-content { position: relative; z-index: 1; margin-top: calc(var(--bn-vh) * -1); }

/* =====================================================================
   FV
   ===================================================================== */
.bn-hero {
  position: relative;
  min-height: var(--bn-vh);
  height: var(--bn-vh);
  display: flex; align-items: center;
  padding: var(--bn-header-h) var(--bn-header-x) 0;
}
.bn-hero__inner {
  position: relative; z-index: 2;
  max-width: 1320px; width: 100%; margin: 0 auto;
  padding-left: clamp(0px, 4vw, 60px);
  transform: translateY(-2vh);
}
.bn-hero__en {
  font-family: var(--bn-serif-en); font-weight: 300;
  font-size: clamp(11px, .9vw, 14px); letter-spacing: .5em; color: var(--bn-gold);
  margin-bottom: clamp(18px, 2.6vh, 30px);
  opacity: 0;
}
.bn-hero__title {
  font-family: var(--bn-serif-ja); font-weight: 400;
  font-size: clamp(38px, 5.2vw, 86px);
  line-height: 1.32; letter-spacing: .08em;
  color: var(--bn-moon);
  text-shadow: 0 2px 30px rgba(8,15,36,.5);
}
.bn-hero__line { display: block; white-space: nowrap; }
.bn-ch { display: inline-block; opacity: 0; transform: translateY(.35em); filter: blur(6px); }
.bn-hero__sub {
  margin-top: clamp(22px, 3.6vh, 40px);
  color: var(--bn-moon);
  opacity: 0;
  text-shadow: 0 2px 24px rgba(8,15,36,.6);
}
.bn-hero__lead {
  font-size: clamp(16px, 1.5vw, 24px); line-height: 1.8; letter-spacing: .12em;
  color: rgba(242,240,232,.9);
}
.bn-hero__subcopy {
  font-size: clamp(20px, 2vw, 32px); line-height: 1.7; letter-spacing: .14em;
  font-weight: 500;
  margin-top: clamp(10px, 1.6vh, 18px);
}
.bn-hero__subcopy:not(:last-child) {
  font-size: clamp(14px, 1.2vw, 19px); font-weight: 400; letter-spacing: .1em;
  color: rgba(242,240,232,.9);
  margin-top: clamp(14px, 2.2vh, 24px);
}
.bn-hero__cta { margin-top: clamp(28px, 4.5vh, 52px); opacity: 0; }

.bn-btn {
  display: inline-flex; flex-direction: column; align-items: center; justify-content: center;
  min-width: 232px; min-height: 60px; padding: 12px 36px;
  text-decoration: none; color: var(--bn-moon) !important;
  border: 1px solid rgba(200,173,120,.75);
  background: rgba(8,15,36,.25);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  position: relative; overflow: hidden; isolation: isolate;
  transition: color .4s, border-color .4s;
}
.bn-btn::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(90deg, rgba(200,173,120,.22), rgba(200,173,120,.08));
  transform: translateX(-101%); transition: transform .5s cubic-bezier(.22,.61,.36,1);
}
.bn-btn:hover::before { transform: none; }
.bn-btn:hover { border-color: var(--bn-gold); }
.bn-btn__en { font-family: var(--bn-serif-en); font-size: 13px; letter-spacing: .34em; color: var(--bn-gold); line-height: 1; transform: translateX(.17em); }
.bn-btn__ja { font-family: var(--bn-serif-ja); font-size: 13px; letter-spacing: .2em; margin-top: 6px; line-height: 1; }
.bn-btn--ghost { border-color: rgba(242,240,232,.35); }

.bn-scroll {
  position: absolute; left: 50%; bottom: 28px; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  opacity: 0; z-index: 2;
}
.bn-scroll__text { font-family: var(--bn-serif-en); font-size: 10px; letter-spacing: .5em; color: rgba(242,240,232,.7); transform: translateX(.25em); }
.bn-scroll__line { width: 1px; height: 56px; background: rgba(242,240,232,.2); position: relative; overflow: hidden; display: block; }
.bn-scroll__line i { position: absolute; left: 0; top: -100%; width: 100%; height: 100%; background: linear-gradient(180deg, transparent, var(--bn-gold)); animation: bn-scrollline 2.4s cubic-bezier(.65,0,.35,1) infinite; display: block; }
@keyframes bn-scrollline { 0% { top: -100%; } 60%, 100% { top: 100%; } }

/* =====================================================================
   CONCEPT
   ===================================================================== */
.bn-concept {
  position: relative;
  padding: clamp(140px, 22vh, 260px) var(--bn-header-x) clamp(140px, 22vh, 260px);
  background: var(--bn-navy);
  overflow: hidden;
}
.bn-concept__bg { position: absolute; inset: 0; }
.bn-concept__bg img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 20%; display: block; filter: brightness(.42) saturate(.85); }
.bn-concept__bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(8,15,36,.75) 0%, rgba(8,15,36,.45) 25%, rgba(8,15,36,.45) 70%, #02072d 100%);
}
.bn-concept__inner {
  position: relative; z-index: 1;
  max-width: 880px; margin: 0 auto;
}
.bn-concept__text { max-width: none; }
.bn-concept__label {
  font-family: var(--bn-serif-en); font-size: 13px; letter-spacing: .5em; color: var(--bn-gold);
  margin: 0 0 clamp(56px, 9vh, 96px) !important; text-align: center;
  display: flex; align-items: center; justify-content: center; gap: 22px;
}
.bn-concept__body { padding-top: 0; }
.bn-concept__label::before, .bn-concept__label::after { content: ""; width: clamp(40px, 8vw, 120px); height: 1px; background: rgba(200,173,120,.5); }
.bn-concept__title {
  font-family: var(--bn-serif-ja); font-weight: 400;
  font-size: clamp(26px, 2.7vw, 42px); letter-spacing: .1em; line-height: 1.6;
  color: var(--bn-moon);
  margin-bottom: clamp(36px, 5vh, 60px);
}
.bn-concept__body p {
  font-size: clamp(14.5px, 1.1vw, 17px); line-height: 2.5; letter-spacing: .12em;
  color: rgba(242,240,232,.9);
  text-shadow: 0 1px 14px rgba(8,15,36,.9);
  margin: 0 0 2.2em;
}
.bn-concept__body p:last-child { margin-bottom: 0; }
.bn-concept__actions { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; margin-top: clamp(48px, 7vh, 80px); }
.bn-concept__visual {
  position: relative; min-height: 460px; align-self: stretch;
}
.bn-concept__moon {
  position: absolute; top: 0; right: 6%;
  width: 180px; height: 180px; border-radius: 50%;
  background: radial-gradient(circle at 40% 38%, rgba(242,240,232,.9), rgba(242,240,232,.5) 45%, rgba(242,240,232,0) 72%);
  filter: blur(14px); opacity: .35;
}
.bn-cat.bn-cat--concept {
  position: absolute; right: 0; bottom: 0;
  width: clamp(130px, 13vw, 200px);
  opacity: .92;
  filter: drop-shadow(0 20px 40px rgba(0,0,0,.4));
}
.bn-crv { opacity: 0; transform: translateY(22px); }
.bn-concept.is-static .bn-crv { opacity: 1; transform: none; }
.bn-reveal { opacity: 0; transform: translateY(26px); transition: opacity 1.1s cubic-bezier(.22,.61,.36,1), transform 1.1s cubic-bezier(.22,.61,.36,1); }
.bn-reveal.is-in { opacity: 1; transform: none; }


/* =====================================================================
   星空背景（特徴・アクセス・スクール・フッター共通）
   ===================================================================== */
.bn-starry {
  background-color: #02072d;
  background-size: cover;
  background-position: center bottom;
  background-repeat: no-repeat;
}
@media (min-width: 1025px) and (hover: hover) {
  .bn-starry { background-attachment: fixed; background-position: center center; }
}
.bn-starry__shade { position: absolute; inset: 0; pointer-events: none; background: linear-gradient(180deg, rgba(2,7,45,.55) 0%, rgba(2,7,45,.22) 20%, rgba(2,7,45,.22) 80%, rgba(2,7,45,.6) 100%); }
.bn-features { background-color: transparent; }
.bn-school { background-color: transparent; }

/* =====================================================================
   共通セクション見出し
   ===================================================================== */
.bn-sec-head { text-align: center; margin-bottom: clamp(48px, 7vh, 90px); }
.bn-sec-head__en { font-family: var(--bn-serif-en); font-size: 12px; letter-spacing: .5em; color: var(--bn-gold); margin: 0 0 14px; }
.bn-sec-head__ja { font-family: var(--bn-serif-ja); font-weight: 500; font-size: clamp(24px, 2.4vw, 36px); letter-spacing: .14em; line-height: 1.5; color: var(--bn-moon); margin: 0; }
.bn-sec-head__lead { margin: 18px auto 0; max-width: 40em; font-size: clamp(13px, 1vw, 15px); line-height: 2.1; letter-spacing: .08em; text-align: center; max-width: none; }
.bn-sec-head--ink .bn-sec-head__ja { color: #0f1f3d; }
.bn-sec-head--ink .bn-sec-head__lead { color: rgba(15,31,61,.75); }

/* =====================================================================
   FEATURE（星空背景・ジグザグ）
   ===================================================================== */
.bn-features {
  position: relative; overflow: hidden;
  padding: clamp(100px, 14vh, 170px) var(--bn-header-x);
  background: #02072d;
  color: var(--bn-moon);
  font-family: var(--bn-serif-ja);
}
.bn-features *, .bn-features *::before, .bn-features *::after { box-sizing: border-box; }
.bn-features h2, .bn-features h3, .bn-features p { margin: 0; }
.bn-features__inner { position: relative; z-index: 1; max-width: 1180px; margin: 0 auto; }
.bn-feature {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 80px);
  align-items: center;
  margin-top: clamp(56px, 8vh, 110px);
}
.bn-feature:first-of-type { margin-top: 0; }
.bn-feature__photo { aspect-ratio: 16 / 10; overflow: hidden; border-radius: 18px; box-shadow: 0 30px 60px rgba(0,0,0,.45); }
.bn-feature__photo img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 1.2s ease; }
.bn-feature:hover .bn-feature__photo img { transform: scale(1.03); }
.bn-feature--rev .bn-feature__photo { order: 2; }
.bn-feature--rev .bn-feature__body { order: 1; }
.bn-feature__num { display: flex; align-items: baseline; gap: 10px; color: var(--bn-gold); margin-bottom: 18px; }
.bn-feature__num-word { font-family: var(--bn-serif-en); font-style: italic; font-weight: 300; font-size: clamp(20px, 1.8vw, 26px); letter-spacing: .06em; }
.bn-feature__num-digit { font-family: var(--bn-serif-en); font-weight: 300; font-size: clamp(40px, 3.6vw, 56px); letter-spacing: .04em; line-height: 1; }
.bn-feature__title { font-family: var(--bn-serif-ja); font-weight: 500; font-size: clamp(20px, 1.9vw, 28px); line-height: 1.6; letter-spacing: .1em; color: var(--bn-moon); margin-bottom: 18px; text-shadow: 0 2px 20px rgba(2,7,45,.8); }
.bn-feature__text p { font-size: clamp(13.5px, 1vw, 15px); line-height: 2.1; letter-spacing: .06em; color: rgba(242,240,232,.86); margin: 0 0 1.2em; text-shadow: 0 1px 12px rgba(2,7,45,.9); }
.bn-feature__text p:last-child { margin-bottom: 0; }

/* =====================================================================
   ACCESS（明るい象牙色・写真＋地図＋店舗情報）
   ===================================================================== */
.bn-access {
  position: relative; overflow: hidden;
  padding: clamp(90px, 13vh, 160px) var(--bn-header-x);
  background: #02072d;
  color: var(--bn-moon);
  font-family: var(--bn-serif-ja);
}
.bn-access *, .bn-access *::before, .bn-access *::after { box-sizing: border-box; }
.bn-access h2, .bn-access p, .bn-access dl, .bn-access dd { margin: 0; }
.bn-access__inner { position: relative; z-index: 1; max-width: 1100px; margin: 0 auto; }
.bn-access__media { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(20px, 2.5vw, 32px); }
.bn-access__photo, .bn-access__map { position: relative; aspect-ratio: 4 / 3; overflow: hidden; border-radius: 12px; background: #0f1f3d; box-shadow: 0 30px 60px rgba(0,0,0,.45); }
.bn-access__photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.bn-access__map iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; display: block; }
.bn-access__maplink {
  position: absolute; left: 16px; bottom: 16px;
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(8,15,36,.85); color: var(--bn-moon) !important; border: 1px solid rgba(200,173,120,.5);
  font-family: var(--bn-serif-en); font-size: 11px; letter-spacing: .25em;
  padding: 10px 16px; box-shadow: 0 8px 24px rgba(10,21,48,.15);
  text-decoration: none !important; transition: background-color .4s, color .4s;
}
.bn-access__maplink:hover { background: var(--bn-gold) !important; color: #080F24 !important; }
.bn-access__info {
  margin-top: clamp(40px, 6vh, 64px); padding-top: clamp(40px, 6vh, 64px);
  border-top: 1px solid rgba(242,240,232,.15);
  display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: 40px;
}
.bn-access__shop { font-size: clamp(18px, 1.6vw, 24px); letter-spacing: .14em; line-height: 1.5; font-weight: 500; }
.bn-access__shop-en { font-family: var(--bn-serif-en); font-size: 11px; letter-spacing: .35em; color: rgba(242,240,232,.55); margin-top: 8px; }
.bn-access__dl { display: grid; grid-template-columns: 110px 1fr; gap: 18px 24px; font-size: 14px; line-height: 2; letter-spacing: .08em; }
.bn-access__dl dt { font-family: var(--bn-serif-en); font-size: 11px; letter-spacing: .3em; color: var(--bn-gold); padding-top: 6px; }
.bn-access__dl dd { color: rgba(242,240,232,.9); }
.bn-access__tel { font-family: var(--bn-serif-en); font-size: 24px; letter-spacing: .08em; color: var(--bn-moon) !important; text-decoration: none !important; line-height: 1.2; display: inline-block; }
.bn-access__note { display: block; font-size: 11.5px; letter-spacing: .04em; color: rgba(242,240,232,.6); line-height: 1.8; margin-top: 4px; }
.bn-access__actions { margin-top: clamp(40px, 6vh, 64px); }
.bn-reserve { display: flex; flex-wrap: wrap; gap: 14px; }
.bn-reserve .bn-btn { flex: 1 1 200px; min-width: 0; }
.bn-btn--hpb { background: #e8336d !important; border-color: #e8336d; color: #fff !important; }
.bn-btn--hpb .bn-btn__en, .bn-btn--hpb:hover .bn-btn__en { color: rgba(255,255,255,.85); }
.bn-btn--hpb::before { background: #c71f58; }
/* FV直下の予約ブロック */
.bn-reserve-sec { position: relative; z-index: 2; padding: clamp(28px, 4vh, 44px) var(--bn-header-x); background: linear-gradient(180deg, rgba(8,15,36,.0), rgba(8,15,36,.6) 40%, #080F24); }
.bn-reserve-sec__inner { max-width: 1100px; margin: 0 auto; }
.bn-reserve-sec .bn-btn { background: rgba(8,15,36,.55) !important; }
.bn-reserve-sec .bn-btn--line { background: #06c755 !important; }
.bn-reserve-sec .bn-btn--gold { background: var(--bn-gold) !important; }
.bn-reserve-sec .bn-btn--hpb { background: #e8336d !important; }
/* バナー2枚 */
.bn-banners { position: relative; padding: clamp(70px, 9vh, 100px) var(--bn-header-x) 0; }
.bn-banners__inner { position: relative; z-index: 1; max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: clamp(20px, 3vw, 40px); }
.bn-banners a { display: block; border-radius: 10px; overflow: hidden; box-shadow: 0 24px 50px rgba(0,0,0,.45); transition: transform .4s ease, opacity .4s; }
.bn-banners a:hover { transform: translateY(-3px); opacity: .92; }
.bn-banners img { width: 100%; height: auto; display: block; }
.bn-btn--line { background: #06c755 !important; border-color: #06c755; color: #fff !important; }
.bn-btn--line .bn-btn__en, .bn-btn--line:hover .bn-btn__en { color: rgba(255,255,255,.85); }
.bn-btn--line::before { background: #04a846; }
.bn-btn--gold { background: var(--bn-gold) !important; border-color: var(--bn-gold); color: #080F24 !important; }
.bn-btn--gold .bn-btn__en { color: rgba(8,15,36,.7); }
.bn-btn--gold::before { background: #0f1f3d; }
.bn-btn--gold:hover { color: #f5f1e8 !important; }
.bn-btn--gold:hover .bn-btn__en { color: rgba(245,241,232,.8); }
.bn-btn--ink { background: transparent !important; border-color: rgba(15,31,61,.5); color: #0f1f3d !important; -webkit-backdrop-filter: none; backdrop-filter: none; }
.bn-btn--ink .bn-btn__en { color: rgba(15,31,61,.6); }
.bn-btn--ink::before { background: #0f1f3d; }
.bn-btn--ink:hover { color: #f5f1e8 !important; }
.bn-btn--ink:hover .bn-btn__en { color: rgba(245,241,232,.8); }

/* =====================================================================
   SCHOOL バナー（既存バナー画像をそのまま配置）
   ===================================================================== */
.bn-school { position: relative; padding: clamp(60px, 8vh, 90px) var(--bn-header-x) clamp(80px, 10vh, 120px); text-align: center; }
.bn-school__inner { position: relative; z-index: 1; max-width: 960px; margin: 0 auto; }
.bn-school__label { font-family: var(--bn-serif-en); font-size: 12px; letter-spacing: .5em; color: var(--bn-gold); margin: 0 0 18px; }
.bn-school__title { font-family: var(--bn-serif-ja); font-size: clamp(18px, 1.8vw, 24px); letter-spacing: .14em; color: var(--bn-moon); margin: 0 0 28px; font-weight: 500; }
.bn-school a { display: block; border-radius: 12px; overflow: hidden; box-shadow: 0 24px 50px rgba(0,0,0,.45); transition: transform .4s ease, opacity .4s; }
.bn-school a:hover { transform: translateY(-3px); opacity: .92; }
.bn-school img { width: 100%; height: auto; display: block; }

/* =====================================================================
   FOOTER（星空背景・中央ロゴ）
   ===================================================================== */
.bn-footer {
  position: relative; overflow: hidden;
  padding: clamp(70px, 10vh, 120px) var(--bn-header-x) clamp(110px, 14vh, 150px);
  background: #02072d; color: var(--bn-moon); text-align: center;
  font-family: var(--bn-serif-ja);
}
.bn-footer *, .bn-footer *::before, .bn-footer *::after { box-sizing: border-box; }
.bn-footer p, .bn-footer ul { margin: 0; padding: 0; }
.bn-footer__inner { position: relative; z-index: 1; max-width: 1100px; margin: 0 auto; }
.bn-footer__logo { display: inline-block; line-height: 0; margin-bottom: clamp(32px, 5vh, 56px); }
.bn-footer__logo img { height: clamp(56px, 6vw, 84px); width: auto; filter: drop-shadow(0 0 24px rgba(242,240,232,.25)); }
.bn-footer__nav ul { list-style: none; display: flex; flex-wrap: wrap; justify-content: center; gap: 14px clamp(22px, 2.6vw, 40px); max-width: 900px; margin: 0 auto; }
.bn-footer__nav a { color: #fff !important; text-decoration: none !important; font-size: 14px; letter-spacing: .1em; font-weight: 500; padding: 4px 0; display: inline-block; position: relative; }
.bn-footer__nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: var(--bn-gold); transform: scaleX(0); transition: transform .4s ease; }
.bn-footer__nav a:hover::after { transform: scaleX(1); }
.bn-footer__btns { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; margin-top: clamp(36px, 5vh, 56px); }
.bn-pill {
  display: inline-flex; align-items: center; gap: 10px;
  min-width: 220px; height: 60px; padding: 0 32px; border-radius: 999px;
  background: #fff !important; color: #0f1f3d !important; text-decoration: none !important;
  font-size: 15px; letter-spacing: .08em; font-weight: 500; justify-content: center;
  box-shadow: 0 10px 30px rgba(0,0,0,.3); transition: transform .3s ease, background-color .3s;
}
.bn-pill:hover { transform: translateY(-2px); background: var(--bn-moon) !important; }
.bn-pill svg { width: 20px; height: 20px; }
.bn-footer__copy { padding-top: clamp(40px, 6vh, 64px); }
.bn-footer__copy p { margin: 0 !important; font-size: 12px; letter-spacing: .06em; color: rgba(242,240,232,.75); line-height: 1.8; }

/* =====================================================================
   コラム記事（single）：タイトル→サムネイル、関連記事3列を幅いっぱいに
   ===================================================================== */
body.bibi-night.single #post_title { margin-bottom: 30px; }
body.bibi-night.single #post_image { margin: 0 0 40px 0; }
body.bibi-night #related_post ol { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 30px 40px; font-size: 0; }
body.bibi-night #related_post li { width: auto !important; margin: 0 !important; display: block; }
@media (max-width: 767px) {
  body.bibi-night #related_post ol { grid-template-columns: 1fr; gap: 24px; }
}

/* 下層ページ：本文内の閉じ忘れタグ等で #main_col に入ってしまっても全幅で表示 */
body.bibi-night:not(.bibi-night-home) .bn-access,
body.bibi-night:not(.bibi-night-home) .bn-footer { clear: both; width: 100vw; margin-left: calc(50% - 50vw); margin-right: calc(50% - 50vw); }
body.bibi-night #main_col .bn-access { margin-top: 60px; }

/* =====================================================================
   アクセス・店舗情報ページ（page-accesss.php）
   ===================================================================== */
.bn-apage { position: relative; padding: clamp(70px, 10vh, 110px) var(--bn-header-x) clamp(90px, 12vh, 140px); color: var(--bn-moon); font-family: var(--bn-serif-ja); }
.bn-apage *, .bn-apage *::before, .bn-apage *::after { box-sizing: border-box; }
.bn-apage h2, .bn-apage h3, .bn-apage p, .bn-apage dl, .bn-apage dd { margin: 0; }
.bn-apage__inner { position: relative; z-index: 1; max-width: 1100px; margin: 0 auto; }
.bn-apage__top { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(24px, 3.5vw, 48px); align-items: start; }
.bn-apage__dl { display: grid; grid-template-columns: 110px 1fr; gap: 14px 20px; font-size: 14.5px; line-height: 1.9; letter-spacing: .06em; }
.bn-apage__dl dt { color: var(--bn-gold); font-weight: 500; padding-top: 2px; border-top: 1px solid rgba(242,240,232,.12); }
.bn-apage__dl dd { color: rgba(242,240,232,.92); border-top: 1px solid rgba(242,240,232,.12); padding-top: 2px; }
.bn-apage__dl dt:first-of-type, .bn-apage__dl dd:first-of-type { border-top: 0; }
.bn-apage__note { display: block; font-size: 12px; line-height: 1.8; color: rgba(242,240,232,.65); margin-top: 4px; }
.bn-apage__note strong { color: rgba(242,240,232,.9); font-weight: 500; }
.bn-apage__reserve { margin-top: clamp(32px, 5vh, 48px); }
.bn-apage__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 3.5vw, 48px); margin-top: clamp(56px, 8vh, 90px); }
.bn-apage__block + .bn-apage__block, .bn-apage__grid + .bn-apage__block { margin-top: clamp(56px, 8vh, 90px); }
.bn-apage__h { font-family: var(--bn-serif-ja); font-weight: 500; font-size: clamp(18px, 1.6vw, 22px); letter-spacing: .12em; color: var(--bn-moon); margin: 0 0 28px !important; padding: 0 !important; display: flex; align-items: baseline; gap: 14px; position: static !important; height: auto !important; line-height: 1.5 !important; background: none !important; border: 0 !important; text-align: left; }
.bn-apage__h span { font-family: var(--bn-serif-en); font-size: 11px; letter-spacing: .4em; color: var(--bn-gold); }
.bn-apage__frame { position: relative; overflow: hidden; border-radius: 12px; background: #0f1f3d; box-shadow: 0 30px 60px rgba(0,0,0,.45); }
.bn-apage__frame--map { aspect-ratio: 4 / 3; }
.bn-apage__frame--video { aspect-ratio: 16 / 9; }
.bn-apage__frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; display: block; }
.bn-apage__parking { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.bn-apage__parking img:first-child { grid-column: 1 / -1; max-width: 560px; }
.bn-apage__parking img { width: 100%; height: auto; display: block; border-radius: 10px; box-shadow: 0 20px 40px rgba(0,0,0,.4); }
body.bibi-night.page-accesss #header_image, body.bibi-night.page-accesss #header_image.no_image { margin-bottom: 0; }

/* =====================================================================
   RESPONSIVE
   ===================================================================== */
@media (max-width: 1024px) {
  :root { --bn-header-h: 84px; --bn-header-x: 32px; }
  .bn-concept__visual { min-height: 320px; }
}
@media (max-width: 767px) {
  :root { --bn-header-h: 72px; --bn-header-x: 20px; }
  .bn-header__logo img { height: 40px; }
  .bn-header.is-scrolled, .bn-header--solid { height: 64px; }
  .bn-header--solid .bn-header__logo img { height: 36px; }
  .bn-header.is-scrolled .bn-header__logo img { height: 36px; }
  .bn-header__menu-label { font-size: 13px; }
  .bn-header__burger { width: 26px; }

  .bn-menu__nav { padding: 72px 20px 110px; }
  .bn-menu__en { font-size: clamp(24px, 3.8vh, 34px); white-space: nowrap; }
  .bn-cat.bn-menu__cat { width: 110px; right: 2vw; }
  .bn-menu__foot { flex-direction: row; gap: 12px; }
  .bn-menu__foot-link { font-size: 12px; }

  /* 月：右上やや小さく／猫：左下／コピー：上寄せ */
  .bn-moon { top: 9vh; right: 6vw; width: 26vw; height: 26vw; }
  .bn-hero__en { margin-bottom: 10px; }
  .bn-photo img { object-position: 50% 100%; }
  .bn-photo::after { background: linear-gradient(180deg, rgba(8,15,36,.25) 0%, rgba(8,15,36,.0) 25%, rgba(8,15,36,.45) 42%, rgba(8,15,36,.45) 62%, rgba(8,15,36,0) 80%); }

  .bn-hero { align-items: flex-start; padding: 0 var(--bn-header-x); }
  .bn-hero__inner { padding-left: 0; transform: none; padding-top: 37svh; text-align: center; }
  .bn-hero__en { font-size: 9.5px; letter-spacing: .28em; margin-bottom: 14px; white-space: nowrap; }
  .bn-hero__title { font-size: clamp(22px, 6.7vw, 30px); line-height: 1.55; letter-spacing: .05em; }
  .bn-hero__sub { margin-top: 18px; }
  .bn-hero__lead { font-size: 14px; letter-spacing: .08em; }
  .bn-hero__subcopy { font-size: 20px; letter-spacing: .08em; margin-top: 6px; }
  .bn-hero__subcopy:not(:last-child) { font-size: 13px; margin-top: 12px; white-space: nowrap; letter-spacing: .04em; }
  .bn-hero__subcopy { white-space: nowrap; }
  .bn-hero__cta { margin-top: 26px; min-width: 176px; min-height: 56px; padding: 10px 22px; }
  .bn-btn__en { font-size: 11px; }
  .bn-btn__ja { font-size: 12px; }
  .bn-scroll { left: var(--bn-header-x); transform: none; bottom: 22px; align-items: flex-start; }
  .bn-scroll__text { transform: none; }
  .bn-scroll__line { height: 44px; }


  .bn-concept { padding: 110px var(--bn-header-x) 100px; }
  .bn-features { padding: 80px var(--bn-header-x); }
  .bn-feature { grid-template-columns: 1fr; gap: 22px; margin-top: 56px; }
  .bn-feature--rev .bn-feature__photo { order: 0; }
  .bn-feature--rev .bn-feature__body { order: 1; }
  .bn-feature__photo { border-radius: 14px; }
  .bn-access { padding: 72px var(--bn-header-x); }
  .bn-access__media { grid-template-columns: 1fr; }
  .bn-access__info { grid-template-columns: 1fr; gap: 24px; }
  .bn-access__dl { grid-template-columns: 1fr; gap: 10px; }
  .bn-access__dl dt { padding-top: 0; }
  .bn-reserve .bn-btn { flex-basis: calc(50% - 7px); min-height: 56px; padding: 10px 8px; }
  .bn-reserve .bn-btn__ja { font-size: 11.5px; }
  .bn-banners__inner { grid-template-columns: 1fr; }
  .bn-banners { padding-top: 56px; }
  .bn-footer { padding: 60px var(--bn-header-x) 120px; }
  .bn-apage__top, .bn-apage__grid { grid-template-columns: 1fr; }
  .bn-apage__dl { grid-template-columns: 1fr; gap: 6px; }
  .bn-apage__dl dt { border-top: 1px solid rgba(242,240,232,.12); padding-top: 12px; }
  .bn-apage__dl dd { border-top: 0; padding-top: 0; padding-bottom: 8px; }
  .bn-apage__parking { grid-template-columns: 1fr; gap: 18px; }
  .bn-apage__parking img:first-child { max-width: none; }
  .bn-footer__nav ul { gap: 12px 20px; }
  .bn-footer__nav a { font-size: 13px; }
  .bn-pill { width: 100%; min-width: 0; height: 54px; }
  .bn-concept__bg img { object-position: 42% 40%; filter: brightness(.38) saturate(.85); }
  .bn-concept__bg::after { background: linear-gradient(180deg, rgba(8,15,36,.7) 0%, rgba(8,15,36,.5) 50%, #02072d 100%); }
  .bn-concept__text { max-width: none; }
  .bn-concept__visual { min-height: 200px; }
  .bn-concept__moon { width: 120px; height: 120px; right: 10%; }
  .bn-cat.bn-cat--concept { width: 110px; }
  .bn-concept__actions .bn-btn { width: 100%; }
}
@media (max-width: 374px) {
  .bn-hero__subcopy:not(:last-child) { font-size: 12px; letter-spacing: .02em; }
  .bn-hero__subcopy { font-size: 18px; }
}
@media (max-width: 767px) and (max-height: 700px) {
  .bn-hero__inner { padding-top: 36svh; }
  .bn-hero__title { font-size: 24px; }
  .bn-hero__sub { margin-top: 14px; }
}

/* =====================================================================
   REDUCED MOTION（演出を止めてもすべて読める）
   ===================================================================== */
@media (prefers-reduced-motion: reduce) {
  .bn-sky, .bn-photo, .bn-hero__en, .bn-ch, .bn-hero__sub, .bn-scroll, .bn-header, .bn-reveal { opacity: 1 !important; transform: none !important; filter: none !important; }
  .bn-cat__body, .bn-moon__glow, .bn-scroll__line i { animation: none !important; }
  .bn-menu, .bn-menu__nav li, .bn-menu__close, .bn-menu__foot { transition: none !important; }
}