/* =========================================================
   LANE — 水とレーン  ｜ 埼玉スウィン加須校
   主役色: グラデの青 / 差し色: 陽光のオレンジ(体験CTAのみ)
   構造言語: lane-line（コースロープ）の罫
   ========================================================= */

:root {
  --surface: #3FB6E6;
  --deep:    #0A3D7A;
  --deep-2:  #07294F;
  --blue:    #0099FF;
  --blue-ink:#0A6FBF;       /* リンク等、白背景でAAを通す濃さ */
  --foam:    #EAF7FF;
  --foam-2:  #F4FBFF;
  --paper:   #FFFFFF;
  --ink:     #082544;
  --ink-2:   #2C4A68;       /* 本文 */
  --line:    #D7E8F4;
  --sun:     #FF7A3C;       /* 陽光：装飾(玉/グロー)のみ。テキスト背景には使わない */
  --sun-cta: #D24E18;       /* 体験CTA背景の明端。白文字AA 4.34:1 */
  --sun-deep:#BE3E12;       /* 体験CTA背景の暗端。白文字AA 5.5:1 */

  --font-disp: "Zen Kaku Gothic New", "Noto Sans JP", sans-serif;
  --font-body: "Noto Sans JP", "Zen Kaku Gothic New", sans-serif;
  --font-num:  "Outfit", "Zen Kaku Gothic New", sans-serif;

  --wrap: 1160px;
  --r: 18px;
  --shadow: 0 18px 50px -28px rgba(8,61,122,0.45);
  --shadow-soft: 0 10px 30px -22px rgba(8,61,122,0.4);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--ink-2);
  background: var(--paper);
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "palt" 1;
}

body.nav-open { overflow: hidden; }

img { max-width: 100%; display: block; }

a { color: var(--blue-ink); text-decoration: none; }

h1, h2, h3 { font-family: var(--font-disp); color: var(--ink); margin: 0; line-height: 1.35; }

.num { font-family: var(--font-num); font-weight: 700; font-feature-settings: "tnum" 1; letter-spacing: 0.01em; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: 22px; }

.pc-only { display: inline; }
.sp-only { display: none; }

:focus-visible {
  outline: 3px solid var(--sun-cta);
  outline-offset: 2px;
  border-radius: 6px;
  /* 明背景・濃紺背景どちらでも見えるよう白ハローを重ねる */
  box-shadow: 0 0 0 5px rgba(255,255,255,0.9);
}
/* 濃紺セクション内は白アウトライン＋濃いハローで反転 */
.section--deep :focus-visible,
.trial :focus-visible,
.hero :focus-visible,
.site-footer :focus-visible {
  outline-color: #fff;
  box-shadow: 0 0 0 5px rgba(8,37,68,0.85);
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5em;
  font-family: var(--font-disp); font-weight: 700; font-size: 0.94rem;
  line-height: 1; letter-spacing: 0.02em;
  padding: 0.92em 1.6em; border-radius: 999px;
  border: 1.6px solid transparent; cursor: pointer;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s, color .25s;
  white-space: nowrap;
}
.btn svg { flex: none; }
.btn--lg { font-size: 1.02rem; padding: 1.08em 2em; }

/* 体験CTA = 一意のprimary（差し色） */
.btn--sun {
  background: linear-gradient(135deg, var(--sun-cta), var(--sun-deep));
  color: #fff;
  box-shadow: 0 12px 26px -12px rgba(190,62,18,0.7);
}
.btn--sun:hover { transform: translateY(-2px); box-shadow: 0 18px 34px -14px rgba(190,62,18,0.85); }

.btn--ghost {
  background: transparent; color: var(--blue-ink); border-color: var(--line);
}
.btn--ghost:hover { background: var(--foam); border-color: var(--blue); }

.btn--glass {
  background: rgba(255,255,255,0.14); color: #fff;
  border-color: rgba(255,255,255,0.6); backdrop-filter: blur(6px);
}
.btn--glass:hover { background: rgba(255,255,255,0.24); transform: translateY(-2px); }

.text-link {
  display: inline-flex; align-items: center; gap: 0.4em;
  font-family: var(--font-disp); font-weight: 700; color: var(--blue-ink);
}
.text-link svg { transition: transform .25s var(--ease); }
.text-link:hover svg { transform: translateX(4px); }

/* ============ LANE-LINE RULE (signature) ============ */
.lane-cord { stroke: var(--blue); stroke-width: 2; opacity: 0.5; }
/* コースロープの浮き玉 = 水の言語。橙は混ぜない（差し色は体験CTAに一点集中） */
.lane-floats circle { fill: var(--blue); }
.lane-floats circle:nth-child(4n+1) { fill: var(--surface); }
.lane-floats circle:nth-child(4n+3) { fill: var(--deep); }

.lane-rule { display: block; width: 100%; height: 14px; }
.lane-rule--hero { position: absolute; left: 0; bottom: -1px; z-index: 4; height: 16px; }
.lane-rule--hero .lane-cord { stroke: #fff; opacity: 0.85; }
.lane-rule--hero .lane-floats circle { fill: #fff; opacity: 0.95; }
.lane-rule--hero .lane-floats circle:nth-child(4n+1) { fill: #BFE6FA; }
.lane-rule--hero .lane-floats circle:nth-child(4n+3) { fill: #8FD6F5; }

.lane-rule--footer { height: 14px; opacity: 0.9; }
.lane-rule--footer .lane-cord { stroke: rgba(255,255,255,0.5); }
.lane-rule--footer .lane-floats circle { fill: rgba(255,255,255,0.65); }
.lane-rule--footer .lane-floats circle:nth-child(4n+1) { fill: var(--surface); opacity: 0.9; }
.lane-rule--footer .lane-floats circle:nth-child(4n+3) { fill: #8FD6F5; }

/* ============ HEADER ============ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.82);
  backdrop-filter: blur(14px) saturate(1.4);
  border-bottom: 1px solid transparent;
  transition: box-shadow .3s, border-color .3s, background .3s;
}
.site-header.is-scrolled {
  box-shadow: 0 6px 24px -16px rgba(8,61,122,0.5);
  border-bottom-color: var(--line);
}
.header-inner { display: flex; align-items: center; gap: 18px; min-height: 72px; }

.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--deep); }
.brand-mark { color: var(--blue); display: inline-flex; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-family: var(--font-disp); font-weight: 900; font-size: 1.12rem; color: var(--ink); letter-spacing: 0.02em; }
.brand-text small { font-size: 0.66rem; color: var(--ink-2); letter-spacing: 0.04em; }

.site-nav { margin-left: auto; }
.site-nav ul { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; }
.site-nav a {
  display: inline-block; padding: 0.55em 0.85em; border-radius: 999px;
  font-family: var(--font-disp); font-weight: 500; font-size: 0.9rem; color: var(--ink);
  transition: background .2s, color .2s;
}
.site-nav a:hover { background: var(--foam); color: var(--blue-ink); }

.header-cta { display: flex; align-items: center; gap: 10px; }
.header-cta .btn--ghost { padding: 0.7em 1em; font-size: 0.86rem; }
.header-cta .btn--ghost span { font-family: var(--font-num); font-weight: 600; }

.nav-toggle {
  display: none; margin-left: auto; width: 46px; height: 46px;
  background: var(--foam); border: 1px solid var(--line); border-radius: 12px;
  flex-direction: column; gap: 5px; align-items: center; justify-content: center; cursor: pointer;
}
.nav-toggle span { width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .3s, opacity .2s; }
.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); }

[hidden] { display: none !important; }

.mobile-nav {
  display: flex; flex-direction: column; gap: 4px;
  padding: 14px 22px 26px; border-top: 1px solid var(--line);
  background: rgba(255,255,255,0.97); backdrop-filter: blur(14px);
}
.mobile-nav a {
  font-family: var(--font-disp); font-weight: 500; color: var(--ink);
  padding: 0.85em 0.4em; border-bottom: 1px solid var(--line);
}
.mobile-nav .mobile-trial { margin-top: 14px; border: none; color: #fff; justify-content: center; }
.mobile-nav .mobile-tel {
  margin-top: 6px; text-align: center; font-family: var(--font-num); font-weight: 600;
  color: var(--blue-ink); border: none; padding: 0.6em;
}

/* ============ HERO ============ */
.hero { position: relative; isolation: isolate; overflow: hidden; min-height: min(88vh, 760px); display: flex; align-items: flex-end; }
.hero-media { position: absolute; inset: 0; z-index: -2; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero-tint {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(7,41,79,0.18) 0%, rgba(7,41,79,0.40) 55%, rgba(7,41,79,0.80) 100%),
    linear-gradient(110deg, rgba(10,61,122,0.55) 0%, rgba(10,61,122,0.06) 60%);
}
.hero-caustic { position: absolute; inset: 0; width: 100%; height: 100%; mix-blend-mode: screen; opacity: 0.5; pointer-events: none; }

.hero-inner { position: relative; z-index: 2; padding-block: 56px 64px; color: #fff; }
.hero-kicker {
  font-family: var(--font-disp); font-weight: 500; letter-spacing: 0.16em;
  font-size: 0.82rem; color: #CFF0FF; margin: 0 0 14px;
}
.hero-title { font-weight: 900; font-size: clamp(2.5rem, 8vw, 4.6rem); line-height: 1.12; letter-spacing: 0.01em; text-shadow: 0 4px 30px rgba(7,41,79,0.5); }
.hero-title span { display: block; }
.hero-title-accent .num {
  font-size: 1.18em; font-weight: 800; font-style: normal;
  color: #fff;
  background: linear-gradient(135deg, #FFD8A8, var(--sun));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  padding-right: 0.04em;
}
.hero-lead {
  margin: 22px 0 0; max-width: 40ch;
  font-size: clamp(0.98rem, 2.4vw, 1.14rem); line-height: 1.95;
  color: #EAF7FF; text-shadow: 0 2px 16px rgba(7,41,79,0.6);
}
.hero-lead strong { color: #fff; font-weight: 700; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

.hero-facts {
  display: flex; flex-wrap: wrap; gap: 14px 34px; margin: 34px 0 0; padding: 0;
}
.hero-facts > div {
  padding-left: 16px; border-left: 2px solid rgba(255,255,255,0.4);
}
.hero-facts dt { font-size: 0.74rem; letter-spacing: 0.08em; color: #BFE6FA; margin: 0 0 2px; }
.hero-facts dd { margin: 0; font-family: var(--font-disp); font-weight: 700; font-size: 1.18rem; color: #fff; }
.hero-facts dd .num { font-size: 1em; }
.hero-facts dd span { display: block; font-weight: 400; font-size: 0.74rem; color: #DCEFFB; letter-spacing: 0.02em; }

/* ============ SECTION RHYTHM ============ */
.section { padding-block: clamp(64px, 9vw, 104px); position: relative; }
.section--foam { background: linear-gradient(180deg, var(--foam-2), var(--foam)); }
.section--deep {
  background:
    radial-gradient(120% 90% at 80% -10%, rgba(63,182,230,0.35), transparent 55%),
    linear-gradient(160deg, var(--deep), var(--deep-2));
  color: #DCEFFB;
}

.sec-head { max-width: 760px; margin-bottom: clamp(36px, 5vw, 56px); }
.sec-kicker {
  font-family: var(--font-disp); font-weight: 700; letter-spacing: 0.18em;
  font-size: 0.78rem; color: var(--blue-ink); margin: 0 0 14px;
}
.sec-title { font-weight: 700; font-size: clamp(1.7rem, 4.6vw, 2.7rem); line-height: 1.34; letter-spacing: 0.01em; }
.sec-title .num { font-size: 1.12em; color: var(--blue); }
.sec-desc { margin: 18px 0 0; font-size: 1.02rem; color: var(--ink-2); }

.sec-head--light .sec-kicker { color: #8FD6F5; }
.sec-head--light .sec-title { color: #fff; }
.sec-head--light .sec-title .num { color: #8FD6F5; }
.sec-head--light .sec-desc { color: #C5E4F6; }

/* ============ 25-STEP LANE TRACK (signature) ============ */
.steps .sec-head { max-width: 820px; }

/* 構造はカードでなくレーンそのもの。コースロープが各段を貫き、
   ステージは枠を脱いで水の上に開かれた節点として並ぶ。 */
.lane-track { position: relative; margin-top: 12px; padding-block: 30px 30px; }
.lane-stages {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 0;
  position: relative; z-index: 2;
}
.lane-stage {
  position: relative;
  padding: 30px 14px 4px;
  text-align: center;
  transition: transform .3s var(--ease);
}
/* 隣の段との間に、ロープの区切り（点線の細い縦罫）。カード壁の代わり */
.lane-stage + .lane-stage::after {
  content: ""; position: absolute; left: 0; top: 34px; bottom: 8px; width: 1px;
  background: repeating-linear-gradient(180deg, var(--line) 0 5px, transparent 5px 11px);
}
.lane-stage::before {
  /* ロープ上に乗る浮き玉 = この段の節点 */
  content: ""; position: absolute; left: 50%; top: 0; transform: translate(-50%, -50%);
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--blue); border: 3px solid var(--foam-2);
  box-shadow: 0 0 0 1px var(--line);
}
.lane-stage:hover { transform: translateY(-4px); }

.lane-stage-grade {
  display: inline-block; font-family: var(--font-num); font-weight: 700; font-size: 0.82rem;
  color: var(--blue-ink); letter-spacing: 0.02em; margin-bottom: 8px;
}
.lane-stage-name { display: block; font-family: var(--font-disp); font-weight: 700; font-size: 1.04rem; color: var(--ink); line-height: 1.4; }
.lane-stage-note { display: block; margin-top: 7px; font-size: 0.8rem; color: var(--ink-2); line-height: 1.6; }

/* ゴール = レーンの到達点。唯一強調する節点 */
.lane-stage.is-goal::before {
  width: 22px; height: 22px;
  background: var(--deep);
  border-color: var(--foam-2);
  box-shadow: 0 0 0 1px var(--deep), 0 0 0 6px rgba(10,61,122,0.12);
}
.lane-stage.is-goal .lane-stage-grade { color: var(--deep); }
.lane-stage.is-goal .lane-stage-name { color: var(--deep); }

.lane-track-cord {
  position: absolute; left: 0; top: 30px; width: 100%; height: 24px; z-index: 1;
}

.steps-foot {
  display: flex; align-items: flex-start; gap: 12px;
  margin: 34px 0 0; padding: 18px 22px;
  background: var(--foam); border-radius: 14px; font-size: 0.96rem; color: var(--ink);
}
.steps-foot svg { flex: none; color: var(--blue); margin-top: 3px; }
.steps-foot a { font-weight: 700; }

/* ============ REASONS ============ */
.reason-list { display: flex; flex-direction: column; gap: clamp(28px, 4vw, 48px); }
.reason {
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 56px); align-items: center;
}
.reason:nth-child(even) .reason-media { order: 2; }
.reason-media {
  position: relative; border-radius: 22px; overflow: hidden; box-shadow: var(--shadow);
  aspect-ratio: 5 / 4;
}
.reason-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.reason:hover .reason-media img { transform: scale(1.04); }
.reason-media::after {
  /* lane-line accent across the photo corner */
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 4px;
  background: repeating-linear-gradient(90deg, var(--blue) 0 7px, transparent 7px 16px);
  opacity: 0.85;
}

.reason-body { position: relative; }
.reason-no { display: block; font-size: 2.2rem; color: var(--surface); opacity: 0.6; line-height: 1; margin-bottom: 6px; }
.reason-body h3 { font-weight: 700; font-size: clamp(1.3rem, 3vw, 1.7rem); line-height: 1.4; }
.reason-body h3 .num { color: var(--blue); font-size: 1.1em; }
.reason-body p { margin: 14px 0 0; font-size: 1rem; }

/* ============ COURSES ============ */
.course-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.course {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--r);
  padding: 28px 22px 26px; box-shadow: var(--shadow-soft);
  display: flex; flex-direction: column;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
  position: relative; overflow: hidden;
}
.course::before {
  /* レーン罫の構造言語で統一（グラデバーではなくコースロープの点線） */
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: repeating-linear-gradient(90deg, var(--blue) 0 7px, transparent 7px 16px);
  opacity: 0.85;
}
.course:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--surface); }
.course-icon {
  width: 56px; height: 56px; border-radius: 16px;
  background: var(--foam); color: var(--blue);
  display: grid; place-items: center; margin-bottom: 18px;
}
.course h3 { font-weight: 700; font-size: 1.28rem; }
.course-age { margin: 4px 0 0; font-size: 0.82rem; color: var(--blue-ink); font-weight: 700; font-family: var(--font-disp); }
.course-text { margin: 12px 0 0; font-size: 0.88rem; line-height: 1.75; flex: 1; }
.course-price { margin: 18px 0 0; display: flex; align-items: baseline; gap: 2px; color: var(--ink); }
.course-price-from { font-size: 0.78rem; color: var(--ink-2); margin-right: 4px; align-self: center; }
.course-price .num { font-size: 1.9rem; color: var(--deep); }
.course-price-unit { font-size: 0.84rem; color: var(--ink-2); font-weight: 700; }
.course-price--ask { font-size: 0.86rem; color: var(--ink-2); }
.course-price--ask span { line-height: 1.6; }

/* ============ FACILITY ============ */
.facility-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px;
}
.facility-card {
  margin: 0; position: relative; border-radius: 22px; overflow: hidden;
  box-shadow: 0 24px 50px -30px rgba(0,0,0,0.6); aspect-ratio: 16 / 11;
}
.facility-card--wide { grid-column: 1 / -1; aspect-ratio: 21 / 9; }
.facility-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.facility-card:hover img { transform: scale(1.05); }
.facility-card figcaption {
  position: absolute; inset: auto 0 0 0; padding: 26px 24px 22px; color: #fff;
  background: linear-gradient(180deg, transparent, rgba(7,41,79,0.86) 70%);
}
.facility-card figcaption h3 { color: #fff; font-weight: 700; font-size: 1.16rem; }
.facility-card--wide figcaption h3 { font-size: 1.4rem; }
.facility-card figcaption p { margin: 8px 0 0; font-size: 0.88rem; color: #DCEFFB; line-height: 1.7; max-width: 52ch; }

/* ============ BUS ============ */
.bus-inner { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(28px, 5vw, 64px); align-items: center; }
.bus-areas {
  list-style: none; margin: 22px 0 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: 10px;
}
.bus-areas li {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--paper); border: 1px solid var(--line); border-radius: 999px;
  padding: 0.55em 1.05em; font-family: var(--font-disp); font-weight: 700; font-size: 0.92rem; color: var(--ink);
  box-shadow: var(--shadow-soft);
}
.bus-areas li svg { color: var(--blue); }
.bus-note { margin: 18px 0 0; font-size: 0.84rem; color: var(--ink-2); }
.bus-media {
  margin: 0; border-radius: 22px; overflow: hidden;
  border: 1px solid var(--line); box-shadow: var(--shadow); background: var(--paper);
}
.bus-media img { width: 100%; height: auto; }

/* ============ NEWS ============ */
.news-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 28px; align-items: start; }
.news-feature {
  background: var(--paper); border: 1px solid var(--line); border-radius: 22px;
  overflow: hidden; box-shadow: var(--shadow-soft);
}
.news-feature-media { position: relative; aspect-ratio: 16 / 9; }
.news-feature-media img { width: 100%; height: 100%; object-fit: cover; }
.news-tag {
  position: absolute; top: 14px; left: 14px;
  background: var(--sun-cta); color: #fff; font-family: var(--font-disp); font-weight: 700;
  font-size: 0.7rem; letter-spacing: 0.08em; padding: 0.4em 0.9em; border-radius: 999px;
}
.news-feature-body { padding: 24px 26px 28px; }
.news-feature-body h3 { font-weight: 700; font-size: 1.3rem; }
.news-feature-body p { margin: 12px 0 18px; font-size: 0.96rem; }

.news-list { list-style: none; margin: 0; padding: 0; }
.news-list li {
  display: flex; gap: 16px; align-items: baseline;
  padding: 18px 4px; border-bottom: 1px solid var(--line);
}
.news-list li:first-child { padding-top: 0; }
.news-date {
  flex: none; min-width: 48px; text-align: center;
  font-size: 0.8rem; font-weight: 700; color: var(--blue-ink);
  background: var(--foam); border-radius: 8px; padding: 0.35em 0.6em;
}
.news-list a { color: var(--ink); font-size: 0.95rem; line-height: 1.7; }
.news-list a:hover { color: var(--blue-ink); }

/* ============ TRIAL ============ */
.trial { position: relative; isolation: isolate; overflow: hidden; }
.trial-media { position: absolute; inset: 0; z-index: -2; }
.trial-media img { width: 100%; height: 100%; object-fit: cover; }
.trial-tint {
  position: absolute; inset: 0;
  background: linear-gradient(150deg, rgba(7,41,79,0.92) 0%, rgba(10,61,122,0.82) 55%, rgba(63,182,230,0.55) 100%);
}
.trial-inner { position: relative; z-index: 2; text-align: center; max-width: 880px; }
.trial-inner .sec-kicker { color: #8FD6F5; }
.trial-title { color: #fff; font-weight: 700; font-size: clamp(1.9rem, 5.5vw, 3rem); line-height: 1.3; }
.trial-lead { margin: 18px auto 0; max-width: 50ch; color: #DCEFFB; font-size: 1.04rem; }
.trial-lead strong { color: #fff; font-weight: 700; }

.trial-flow {
  list-style: none; margin: 40px 0 0; padding: 0;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  counter-reset: none; position: relative;
}
.trial-flow li {
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.22);
  border-radius: 16px; padding: 24px 18px; backdrop-filter: blur(4px);
  text-align: left;
}
.trial-step {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(135deg, var(--sun-cta), var(--sun-deep)); color: #fff;
  font-size: 1.02rem; margin-bottom: 14px;
}
.trial-flow h3 { color: #fff; font-weight: 700; font-size: 1.08rem; }
.trial-flow p { margin: 8px 0 0; font-size: 0.86rem; color: #C5E4F6; line-height: 1.7; }

.trial-actions { margin-top: 38px; }
.trial-hours { margin: 16px 0 0; font-family: var(--font-num); font-weight: 500; font-size: 0.88rem; color: #BFE6FA; letter-spacing: 0.02em; }

/* ============ FOOTER ============ */
.site-footer { background: var(--deep-2); color: #C5E4F6; }
.footer-inner {
  display: grid; grid-template-columns: 1.1fr 1.4fr auto; gap: 40px;
  padding-block: clamp(44px, 6vw, 64px);
  align-items: start;
}
.brand--footer { color: #fff; }
.brand--footer .brand-mark { color: #8FD6F5; }
.brand--footer .brand-text strong { color: #fff; }
.brand--footer .brand-text small { color: #9FC8E0; }
.footer-op { margin: 16px 0 0; font-size: 0.82rem; color: #9FC8E0; }

.footer-info dl { margin: 0; display: grid; gap: 18px; }
.footer-info dt { font-size: 0.74rem; letter-spacing: 0.1em; color: #8FD6F5; margin-bottom: 5px; font-weight: 700; }
.footer-info dd { margin: 0; font-size: 0.96rem; color: #DCEFFB; line-height: 1.7; }
.footer-info dd a { color: #fff; font-family: var(--font-num); font-weight: 600; font-size: 1.1rem; }

.footer-actions { display: flex; flex-direction: column; align-items: flex-start; gap: 18px; }
.footer-ig { display: inline-flex; align-items: center; gap: 9px; color: #DCEFFB; font-family: var(--font-disp); font-weight: 500; font-size: 0.92rem; }
.footer-ig:hover { color: #fff; }
.footer-trial { color: #fff; }

.footer-base { border-top: 1px solid rgba(255,255,255,0.12); }
.footer-base small { display: block; max-width: var(--wrap); margin-inline: auto; padding: 18px 22px; font-size: 0.74rem; color: #7FA8C4; }

/* ============ SCROLL REVEAL ============ */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }

/* ============ RESPONSIVE ============ */
@media (max-width: 1000px) {
  .site-nav, .header-cta { display: none; }
  .nav-toggle { display: flex; }
  /* タブレット以下：レーンを縦向きに。左を1本のロープが貫く */
  .lane-track { padding-block: 4px; }
  .lane-track-cord { display: none; }
  .lane-stages { grid-template-columns: 1fr; gap: 0; padding-left: 30px; }
  .lane-stage {
    text-align: left; padding: 16px 0 16px 18px;
    border-left: 2px solid var(--line);
  }
  .lane-stage:last-child { border-left-color: transparent; }
  .lane-stage + .lane-stage::after { display: none; }
  .lane-stage::before {
    left: -2px; top: 24px; transform: translate(-50%, 0);
  }
  .lane-stage.is-goal { border-left-color: var(--deep); }
  .course-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-actions { grid-column: 1 / -1; flex-direction: row; align-items: center; justify-content: space-between; }
}

@media (max-width: 680px) {
  .pc-only { display: none; }
  .sp-only { display: inline; }

  .hero { min-height: 86vh; }
  .hero-inner { padding-block: 40px 56px; }
  .hero-actions { gap: 11px; }
  .hero-actions .btn { flex: 1 1 auto; }
  .hero-facts { gap: 12px 22px; }
  .hero-facts > div { flex: 1 1 40%; }

  .reason { grid-template-columns: 1fr; gap: 20px; }
  .reason:nth-child(even) .reason-media { order: 0; }
  .reason-media { aspect-ratio: 16 / 10; }

  .course-grid { grid-template-columns: 1fr; }
  .facility-grid { grid-template-columns: 1fr; }
  .facility-card, .facility-card--wide { aspect-ratio: 16 / 11; }

  .bus-inner { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .trial-flow { grid-template-columns: 1fr; }

  .footer-inner { grid-template-columns: 1fr; gap: 30px; }
  .footer-actions { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 380px) {
  .hero-title { font-size: 2.3rem; }
  .wrap { padding-inline: 18px; }
  .hero-facts > div { flex: 1 1 100%; }
}

/* ============ REDUCED MOTION ============ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .hero-caustic { display: none; }
}