@charset "UTF-8";
/* ============================================================
   7days脱獄プログラム LP
   ヒーロー = ダーク(黒×ゴールド) / ヒーロー以下 = ライト(白×黒)
   モバイルファースト / 静的(アニメーションなし)
   ============================================================ */

:root {
  /* --- ヒーロー(ダーク)用 --- */
  --hero-bg: #060504;
  --hero-text: #ece5d6;
  --hero-text-sub: rgba(236, 229, 214, 0.80);

  /* --- ゴールド --- */
  --gold: #b8922a;
  --gold-bright: #d4a843;
  --gold-light: #e8c96a;
  --gold-pale: #f7e9c0;
  --gold-deep: #8a6a1a;   /* 白背景の文字用 */
  --gold-ink: #6d5310;    /* 白背景の見出しアクセント用 */

  /* --- ライトセクション --- */
  --bg: #ffffff;
  --bg-alt: #faf8f3;
  --silver: #f6f7f9;      /* 交互セクション背景(薄いシルバー) */
  --silver-line: rgba(23, 21, 15, 0.06);
  --surface: #f7f3ea;
  --surface-deep: #fffdf7;
  --ink: #17150f;
  --ink-sub: #3a362e;
  --ink-dim: #6e6a61;
  --red: #c0392b;
  --red-deep: #a32b1f;
  --border-gold: rgba(184, 146, 42, 0.38);
  --border-gold-strong: rgba(184, 146, 42, 0.7);
  --border-line: rgba(23, 21, 15, 0.12);
  color-scheme: light;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: 0.06em;
  -webkit-text-size-adjust: 100%;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--ink); }

:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }

/* ===== noscript ===== */
.noscript-bar {
  display: block;
  background: var(--red-deep);
  color: #fff;
  font-size: 14px;
  line-height: 1.7;
  text-align: center;
  padding: 12px 16px;
}

/* ===== レイアウト共通 ===== */
.sec {
  position: relative;
  overflow: hidden;
  padding: clamp(56px, 12vw, 96px) clamp(20px, 5vw, 40px);
}
/* 白セクションの薄いグレー方眼グリッド */
.sec:not(.sec-alt)::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(23, 21, 15, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(23, 21, 15, 0.07) 1px, transparent 1px);
  background-size: 52px 52px, 52px 52px;
  -webkit-mask-image: linear-gradient(to bottom, transparent 0%, #000 14%, #000 86%, transparent 100%);
  mask-image: linear-gradient(to bottom, transparent 0%, #000 14%, #000 86%, transparent 100%);
}
.sec-inner {
  position: relative;
  z-index: 1;
  max-width: 860px;
  margin: 0 auto;
}
/* --- 交互セクション = サイバー(近未来)ダーク --- */
.sec-alt {
  position: relative;
  overflow: hidden;
  color: #e8f4fa;
  background:
    radial-gradient(ellipse 85% 55% at 50% 0%, rgba(62, 232, 255, 0.16) 0%, transparent 70%),
    radial-gradient(ellipse 55% 45% at 95% 100%, rgba(96, 130, 255, 0.13) 0%, transparent 62%),
    linear-gradient(175deg, #0d1a26 0%, #070e17 55%, #04070c 100%);
  box-shadow: inset 0 -1px 0 rgba(62, 232, 255, 0.55);
}
/* ダークセクションに隣接する区切り線は非表示 */
.g-divider:has(+ .sec-alt) { display: none; }
.sec-alt + .g-divider { display: none; }

/* 方眼グリッド */
.sec-alt::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(62, 232, 255, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(62, 232, 255, 0.07) 1px, transparent 1px);
  background-size: 52px 52px, 52px 52px;
  -webkit-mask-image: radial-gradient(ellipse 85% 80% at 50% 0%, #000 0%, transparent 80%);
  mask-image: radial-gradient(ellipse 85% 80% at 50% 0%, #000 0%, transparent 80%);
}
/* 上端のライトバー */
.sec-alt::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  z-index: 3;
  pointer-events: none;
  background: linear-gradient(to right, transparent, rgba(62, 232, 255, 0.8) 28%, #a8ecff 50%, rgba(62, 232, 255, 0.8) 72%, transparent);
  box-shadow: 0 0 14px rgba(62, 232, 255, 0.6);
}
.sec-alt .sec-inner { position: relative; z-index: 2; }

/* ダークセクション内のテキスト */
.sec-alt .sec-heading {
  color: #ffffff;
  text-shadow: 0 0 18px rgba(62, 232, 255, 0.45);
}
.sec-alt .sec-heading-rule {
  background: linear-gradient(to right, transparent, #3ee8ff, transparent);
  box-shadow: 0 0 10px rgba(62, 232, 255, 0.7);
}
.sec-alt .body-text { color: rgba(206, 231, 243, 0.88); }
.sec-alt .em-gold {
  color: #7fdcf2;
  text-shadow: 0 0 14px rgba(62, 232, 255, 0.4);
}
.sec-alt .em-red { color: #ff7b93; }
.sec-alt .large-bold { color: #ffffff; }

.g-divider {
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(23, 21, 15, 0.28), rgba(23, 21, 15, 0.5), rgba(23, 21, 15, 0.28), transparent);
}

/* ===== 見出し ===== */
.sec-heading {
  font-family: 'Shippori Mincho B1', serif;
  font-size: clamp(22px, 5.5vw, 34px);
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.12em;
  line-height: 1.65;
  text-align: center;
  margin-bottom: 16px;
}
.sec-heading-rule {
  width: 72px;
  height: 2px;
  background: linear-gradient(to right, transparent, var(--ink), transparent);
  margin: 0 auto clamp(36px, 7vw, 56px);
}

/* ===== 本文 ===== */
.body-text {
  font-size: clamp(13px, 3.5vw, 15px);
  color: var(--ink-sub);
  line-height: 2.0;
}
.body-text p { margin-bottom: 1.6em; }
.body-text p:last-child { margin-bottom: 0; }
.body-text + .cta-box { margin-top: clamp(34px, 7vw, 50px); }

.em-gold { color: var(--ink); font-weight: 700; }
.em-red { color: var(--red); font-weight: 700; }
.large-bold { font-size: 107%; font-weight: 700; color: var(--ink); }
.text-underline { text-decoration: underline; text-underline-offset: 5px; }
/* 明朝の「！」が斜体に見えるため直立の書体に差し替える */
.excl { font-family: 'Noto Serif JP', serif; }

.sp-br { display: inline; }
.pc-br { display: none; }
.tab-br { display: inline; }   /* スマホ・タブレットで改行 */
@media (min-width: 640px) {
  .sp-br { display: none; }
  .pc-br { display: inline; }
}
@media (min-width: 1000px) {
  .tab-br { display: none; }
}

/* ============================================================
   ヒーロー — サイバー / 近未来テイスト
   ============================================================ */
.hero {
  position: relative;
  background:
    radial-gradient(ellipse 90% 60% at 50% 6%, rgba(62, 232, 255, 0.20) 0%, transparent 68%),
    radial-gradient(ellipse 55% 45% at 92% 96%, rgba(96, 130, 255, 0.16) 0%, transparent 62%),
    radial-gradient(ellipse 45% 40% at 6% 88%, rgba(62, 232, 255, 0.08) 0%, transparent 60%),
    linear-gradient(175deg, #0d1a26 0%, #070e17 55%, #04070c 100%);
  color: #e8f4fa;
  overflow: hidden;
  padding: clamp(64px, 14vw, 110px) clamp(20px, 5vw, 40px) clamp(56px, 12vw, 96px);
}
/* 方眼グリッド */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(62, 232, 255, 0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(62, 232, 255, 0.08) 1px, transparent 1px);
  background-size: 56px 56px, 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 85% 75% at 50% 8%, #000 0%, transparent 80%);
  mask-image: radial-gradient(ellipse 85% 75% at 50% 8%, #000 0%, transparent 80%);
}
/* 下端のライトバー */
.hero::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  z-index: 3;
  pointer-events: none;
  background: linear-gradient(to right, transparent, #3ee8ff 25%, #a8ecff 50%, #3ee8ff 75%, transparent);
  box-shadow: 0 0 18px rgba(62, 232, 255, 0.8);
}
.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
}
.hero-badge {
  display: inline-block;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(12px, 3.1vw, 16px);
  font-weight: 700;
  color: #9beefc;
  letter-spacing: 0.06em;
  border: 1px solid rgba(62, 232, 255, 0.55);
  border-radius: 2px;
  background: rgba(62, 232, 255, 0.07);
  box-shadow: 0 0 18px rgba(62, 232, 255, 0.18), inset 0 0 18px rgba(62, 232, 255, 0.08);
  padding: 9px 22px;
  margin-bottom: clamp(40px, 10vw, 44px);
}
.hero-catch {
  font-family: 'Shippori Mincho B1', serif;
  font-size: clamp(15px, 4vw, 23px);
  font-weight: 800;
  color: #ffdc2e;
  letter-spacing: 0.08em;
  line-height: 1.8;
  margin-bottom: 14px;
  text-shadow: 0 0 20px rgba(255, 208, 0, 0.35);
}
/* タイトルロゴ画像 (PC=01 / SP=02) */
.hero-logo {
  width: 100%;
  max-width: 430px;
  margin: 0 auto clamp(36px, 8vw, 56px);
  line-height: 0;
}
.hero-logo img {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 0 26px rgba(62, 232, 255, 0.35));
}

@media (min-width: 640px) {
  .hero-badge { letter-spacing: 0.16em; }
  .hero-catch { letter-spacing: 0.18em; }
  .hero-logo { max-width: 780px; }
}

/* 注意ボックス(ヒーロー内) — 枠なし・中央揃え */
.caution-box {
  position: relative;
  max-width: 620px;
  margin: 0 auto;
  text-align: center;
  padding: clamp(4px, 1.5vw, 10px) 0 0;
}
.caution-label {
  display: block;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(13px, 3.4vw, 15px);
  font-weight: 700;
  color: #ff7b93;
  letter-spacing: 0.2em;
  text-indent: 0.2em;
  text-align: center;
  line-height: 1.7;
  margin-bottom: 12px;
}
.caution-text {
  font-size: clamp(13px, 3.4vw, 14px);
  color: rgba(206, 231, 243, 0.88);
  line-height: 1.85;
  text-align: left;   /* スマホは左揃え */
}
@media (min-width: 640px) {
  .caution-text { text-align: center; }
}
.caution-text .em-red { color: #ff7b93; }
.caution-text .text-underline { text-decoration-color: rgba(206, 231, 243, 0.45); }

/* ============================================================
   CTAボックス(受講登録) — サイバー / 近未来テイスト
   ============================================================ */
.cta-box {
  position: relative;
  max-width: 640px;
  margin: 0 auto;
  background:
    radial-gradient(ellipse 85% 55% at 50% 0%, rgba(62, 232, 255, 0.16) 0%, transparent 70%),
    radial-gradient(ellipse 60% 45% at 100% 100%, rgba(96, 130, 255, 0.12) 0%, transparent 65%),
    linear-gradient(165deg, #0f1a24 0%, #080e16 55%, #04070c 100%);
  border: 1px solid rgba(62, 232, 255, 0.32);
  border-radius: 6px;
  padding: clamp(34px, 7vw, 56px) clamp(20px, 5vw, 44px);
  text-align: center;
  color: #e8f4fa;
  overflow: hidden;
  box-shadow:
    0 18px 50px rgba(4, 12, 20, 0.45),
    0 0 34px rgba(62, 232, 255, 0.14),
    inset 0 0 0 1px rgba(255, 255, 255, 0.03);
}
/* 方眼グリッド + スキャンライン */
.cta-box::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(62, 232, 255, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(62, 232, 255, 0.07) 1px, transparent 1px);
  background-size: 44px 44px, 44px 44px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 0%, #000 0%, transparent 78%);
  mask-image: radial-gradient(ellipse 80% 70% at 50% 0%, #000 0%, transparent 78%);
}
/* 上端のライトバー */
.cta-box::after {
  content: '';
  position: absolute;
  top: 0;
  left: 12%;
  right: 12%;
  height: 2px;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(to right, transparent, #3ee8ff 35%, #8ad9ff 50%, #3ee8ff 65%, transparent);
  box-shadow: 0 0 14px rgba(62, 232, 255, 0.75);
}
.cta-box > * { position: relative; z-index: 2; }

.cta-title {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(19px, 4.9vw, 26px);
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.16em;
  line-height: 1.6;
  margin-bottom: 14px;
  text-shadow: 0 0 18px rgba(62, 232, 255, 0.55);
}
.cta-title-rule {
  width: 88px;
  height: 1px;
  background: linear-gradient(to right, transparent, #3ee8ff, transparent);
  margin: 0 auto;
  box-shadow: 0 0 10px rgba(62, 232, 255, 0.7);
}

/* --- サイバーボックス内のフォーム要素 --- */
.cta-box .form-label {
  color: #ffffff;
  letter-spacing: 0.1em;
}
.cta-box .form-label-note { color: #d6ecf7; letter-spacing: 0.04em; }
.cta-box .form-label .req {
  background: transparent;
  color: #ff5b78;
  border: 1px solid rgba(255, 91, 120, 0.75);
  border-radius: 2px;
  box-shadow: 0 0 10px rgba(255, 91, 120, 0.25);
}
.cta-box .form-label .opt {
  background: transparent;
  color: #7fdcf2;
  border: 1px solid rgba(62, 232, 255, 0.5);
  border-radius: 2px;
}
.cta-box .cta-note { color: #cae2ef; }
.cta-box .form-input,
.cta-box .form-select {
  background-color: #eaf5fb;
  color: #06202b;
  border: 1px solid rgba(62, 232, 255, 0.7);
  border-radius: 4px;
  box-shadow: 0 0 14px rgba(62, 232, 255, 0.22), inset 0 1px 4px rgba(6, 32, 43, 0.16);
}
.cta-box .form-input::placeholder { color: rgba(6, 32, 43, 0.42); }
.cta-box .form-select {
  background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23106f8c' stroke-width='2'/%3E%3C/svg%3E");
}
.cta-box .form-input:focus,
.cta-box .form-select:focus {
  outline: 1px solid #3ee8ff;
  outline-offset: 1px;
  border-color: #3ee8ff;
  box-shadow: 0 0 0 4px rgba(62, 232, 255, 0.28), 0 0 18px rgba(62, 232, 255, 0.35);
}
.cta-box .em-red { color: #ff7b93; }
.cta-box .form-error { color: #ff5b78; }
.cta-box .form-input.is-error { border-color: #ff5b78; outline-color: #ff5b78; }
.cta-items {
  list-style: none;
  display: inline-flex;
  flex-direction: column;
  gap: 8px;
  text-align: left;
  margin-bottom: 20px;
}
.cta-items li {
  font-size: clamp(14px, 3.6vw, 16px);
  color: var(--ink-sub);
  line-height: 1.8;
  padding-left: 1.2em;
  text-indent: -1.2em;
}
.cta-notes {
  margin-bottom: 26px;
}

/* CTAボックス内の登録フォーム */
.cta-form {
  text-align: left;
  margin-top: clamp(20px, 4.5vw, 28px);
}
.cta-form .form-field { margin-bottom: 22px; }
.cta-form .cta-notes { margin-bottom: clamp(22px, 5vw, 30px); }
.cta-note {
  display: block;
  font-size: clamp(12px, 3.1vw, 13px);
  color: var(--ink-dim);
  line-height: 1.6;
  text-align: left;
  text-indent: -1em;
  padding-left: 1em;
}

/* CTAボタン */
.btn-cta {
  display: block;
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  min-height: 64px;
  padding: 16px 14px 20px;
  background: linear-gradient(180deg, #3a3630 0%, #1c1a16 45%, #0b0a08 100%);
  color: #ffffff;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(15px, 4.3vw, 20px);
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.4;
  text-align: center;
  text-decoration: none;
  border: 1px solid #000;
  border-radius: 999px;
  box-shadow: 0 6px 18px rgba(23, 21, 15, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.18);
  cursor: pointer;
}
.btn-cta:hover { background: linear-gradient(180deg, #4a463f 0%, #2a2722 45%, #16140f 100%); }

/* サイバーボックス内はネオンシアンのボタン */
.cta-box .btn-cta {
  background: linear-gradient(135deg, #7cf3ff 0%, #3ee8ff 40%, #12b8e0 100%);
  color: #03151d;
  letter-spacing: 0.04em;
  border: 1px solid rgba(160, 245, 255, 0.9);
  border-radius: 6px;
  box-shadow:
    0 8px 26px rgba(0, 0, 0, 0.45),
    0 0 26px rgba(62, 232, 255, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.7);
}
.cta-box .btn-cta:hover {
  background: linear-gradient(135deg, #a5f7ff 0%, #5cecff 40%, #1fc9f0 100%);
  box-shadow:
    0 8px 26px rgba(0, 0, 0, 0.45),
    0 0 36px rgba(62, 232, 255, 0.6),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

/* ============================================================
   Dayリスト
   ============================================================ */
.day-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: clamp(32px, 7vw, 48px);
}
.day-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: linear-gradient(180deg, #fbfcfd 0%, var(--silver) 100%);
  border: 1px solid var(--silver-line);
  border-left: 3px solid var(--ink);
  border-radius: 0 6px 6px 0;
  padding: clamp(16px, 3.5vw, 22px) clamp(16px, 4vw, 28px);
}
@media (min-width: 640px) {
  .day-item { flex-direction: row; align-items: baseline; gap: 18px; }
}
.day-num {
  font-family: 'Times New Roman', Times, 'Liberation Serif', serif;
  font-size: clamp(19px, 4.7vw, 23px);
  font-weight: 700;
  font-style: italic;
  color: var(--ink);
  letter-spacing: 0.06em;
  white-space: nowrap;
  flex-shrink: 0;
}
.day-body {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(14px, 3.7vw, 16px);
  color: var(--ink-sub);
  line-height: 1.8;
}
.day-body .day-sub {
  font-size: 92%;
  padding-left: 0.5em;   /* スマホ: 「の字下がりに合わせる */
}
@media (min-width: 640px) {
  .day-body .day-sub { padding-left: 0; }
}
.day-body .day-theme {
  font-size: 110%;
  font-weight: 700;
  color: var(--ink);
}

/* ============================================================
   講師紹介
   ============================================================ */
/* ===== セクション内イメージ画像 ===== */
.sec-image {
  position: relative;
  max-width: 720px;
  margin: clamp(34px, 7vw, 50px) auto 0;
  border: 1px solid rgba(62, 232, 255, 0.3);
  border-radius: 6px;
  overflow: hidden;
  box-shadow:
    0 16px 42px rgba(4, 12, 20, 0.5),
    0 0 30px rgba(62, 232, 255, 0.16);
}
.sec-image img {
  width: 100%;
  height: auto;
  display: block;
}
/* 上端のライトバー */
.sec-image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 12%;
  right: 12%;
  height: 2px;
  pointer-events: none;
  background: linear-gradient(to right, transparent, #3ee8ff 50%, transparent);
  box-shadow: 0 0 12px rgba(62, 232, 255, 0.8);
}

/* 講師写真 */
.profile-photo {
  position: relative;
  width: clamp(210px, 56vw, 320px);
  margin: 0 auto clamp(22px, 5vw, 32px);
  border: 1px solid rgba(62, 232, 255, 0.5);
  border-radius: 6px;
  overflow: hidden;
  box-shadow:
    0 14px 36px rgba(4, 12, 20, 0.5),
    0 0 28px rgba(62, 232, 255, 0.2);
}
.profile-photo img {
  width: 100%;
  height: auto;
  display: block;
}
/* 上端のライトバー */
.profile-photo::after {
  content: '';
  position: absolute;
  top: 0;
  left: 12%;
  right: 12%;
  height: 2px;
  pointer-events: none;
  background: linear-gradient(to right, transparent, #3ee8ff 50%, transparent);
  box-shadow: 0 0 12px rgba(62, 232, 255, 0.8);
}

.profile-head {
  text-align: center;
  margin-bottom: clamp(28px, 6vw, 40px);
}
.profile-name {
  font-family: 'Shippori Mincho B1', serif;
  font-size: clamp(19px, 4.8vw, 26px);
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.08em;
  line-height: 1.6;
  margin-bottom: 8px;
}
.profile-caption {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(13px, 3.4vw, 15px);
  color: var(--ink-sub);
  letter-spacing: 0.1em;
}
.profile-body {
  max-width: 720px;
  margin: 0 auto;
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(14px, 3.7vw, 16px);
  color: var(--ink-sub);
  line-height: 2.0;
}
.profile-body p { margin-bottom: 1.6em; }
.profile-body p:last-child { margin-bottom: 0; }

/* 講師紹介がダークセクションの場合 */
.sec-alt .profile-name {
  color: #ffffff;
  text-shadow: 0 0 16px rgba(62, 232, 255, 0.4);
}
.sec-alt .profile-caption {
  color: #7fdcf2;
  letter-spacing: 0.14em;
}
.sec-alt .profile-body { color: rgba(206, 231, 243, 0.88); }

/* ============================================================
   フッター
   ============================================================ */
.footer {
  position: relative;
  background:
    radial-gradient(ellipse 70% 120% at 50% 100%, rgba(62, 232, 255, 0.10) 0%, transparent 70%),
    linear-gradient(180deg, #04070c 0%, #070e17 100%);
  padding: clamp(32px, 6.5vw, 46px) 24px;
  text-align: center;
  overflow: hidden;
}
/* 上端のライトバー */
.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  pointer-events: none;
  background: linear-gradient(to right, transparent, rgba(62, 232, 255, 0.75) 30%, #8ae4ff 50%, rgba(62, 232, 255, 0.75) 70%, transparent);
  box-shadow: 0 0 14px rgba(62, 232, 255, 0.55);
}
/* 方眼グリッド */
.footer::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(62, 232, 255, 0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(62, 232, 255, 0.06) 1px, transparent 1px);
  background-size: 44px 44px, 44px 44px;
  -webkit-mask-image: radial-gradient(ellipse 80% 120% at 50% 100%, #000 0%, transparent 75%);
  mask-image: radial-gradient(ellipse 80% 120% at 50% 100%, #000 0%, transparent 75%);
}
.footer-link,
.footer-copy { position: relative; z-index: 1; }
.footer-link {
  display: inline-block;
  font-size: 13px;
  color: rgba(190, 226, 242, 0.78);
  letter-spacing: 0.08em;
  text-decoration: underline;
  text-underline-offset: 4px;
  margin-bottom: 10px;
  min-height: 44px;
  line-height: 44px;
}
.footer-link:hover { color: #3ee8ff; }
.footer-copy {
  font-size: 12px;
  color: rgba(160, 196, 214, 0.6);
  letter-spacing: 0.14em;
}

/* ============================================================
   フォームページ
   ============================================================ */
.form-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
}
.form-main {
  flex: 1;
  padding: clamp(48px, 10vw, 88px) clamp(20px, 5vw, 40px);
}
.form-wrap {
  max-width: 560px;
  margin: 0 auto;
}
.form-box {
  background: var(--surface-deep);
  border: 1px solid var(--border-line);
  border-radius: 10px;
  padding: clamp(28px, 6vw, 44px) clamp(20px, 5vw, 36px);
  box-shadow: 0 6px 28px rgba(23, 21, 15, 0.07);
}
.form-field { margin-bottom: 26px; }
.form-label {
  display: block;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(14px, 3.7vw, 16px);
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.06em;
  line-height: 1.6;
  margin-bottom: 10px;
}
.form-label .req {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  background: var(--red-deep);
  border-radius: 3px;
  padding: 1px 8px;
  margin-left: 8px;
  vertical-align: 2px;
  letter-spacing: 0.1em;
}
.form-label .opt {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  background: #8a857a;
  border-radius: 3px;
  padding: 1px 8px;
  margin-left: 8px;
  vertical-align: 2px;
  letter-spacing: 0.1em;
}
.form-label-note {
  display: block;
  font-size: clamp(12px, 3.1vw, 13px);
  font-weight: 400;
  color: var(--ink-dim);
  margin-top: 2px;
}
.form-input,
.form-select {
  width: 100%;
  min-height: 52px;
  background: #fff;
  color: var(--ink);
  border: 1px solid rgba(23, 21, 15, 0.28);
  border-radius: 6px;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 16px;
  padding: 12px 16px;
}
.form-input::placeholder { color: rgba(23, 21, 15, 0.38); }
.form-input:focus,
.form-select:focus {
  outline: 2px solid var(--ink);
  outline-offset: 1px;
  border-color: var(--ink);
}
.form-input.is-error { border-color: var(--red); outline-color: var(--red); }
.form-select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%2317150f' stroke-width='2'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 44px;
}
.form-error {
  display: none;
  font-size: 13px;
  font-weight: 700;
  color: var(--red);
  line-height: 1.6;
  margin-top: 8px;
}
.form-error.is-visible { display: block; }
.form-notes { margin: 4px 0 28px; }
.form-submit-wrap { text-align: center; }
.form-back {
  display: inline-block;
  font-size: 13px;
  color: var(--ink-dim);
  text-decoration: underline;
  text-underline-offset: 4px;
  margin-top: 22px;
  min-height: 44px;
  line-height: 44px;
}
.form-back:hover { color: var(--ink); }

.page-heading {
  font-family: 'Shippori Mincho B1', serif;
  font-size: clamp(22px, 5.8vw, 32px);
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.1em;
  line-height: 1.65;
  text-align: center;
  margin-bottom: 14px;
}
.page-heading-rule {
  width: 72px;
  height: 2px;
  background: linear-gradient(to right, transparent, var(--ink), transparent);
  margin: 0 auto clamp(28px, 6vw, 44px);
}
.page-brand {
  display: block;
  font-family: 'Shippori Mincho B1', serif;
  font-size: clamp(13px, 3.4vw, 15px);
  font-weight: 600;
  color: var(--ink-dim);
  letter-spacing: 0.14em;
  text-align: center;
  text-decoration: none;
  margin-bottom: clamp(20px, 4.5vw, 32px);
}
.page-brand:hover { color: var(--ink); }

/* ============================================================
   登録完了ページ
   ============================================================ */
.thanks-main {
  flex: 1;
  padding: clamp(56px, 12vw, 100px) clamp(20px, 5vw, 40px);
}
.thanks-wrap {
  max-width: 620px;
  margin: 0 auto;
  text-align: center;
}
.thanks-lead {
  font-family: 'Noto Serif JP', serif;
  font-size: clamp(15px, 4vw, 18px);
  color: var(--ink-sub);
  line-height: 2.1;
  margin-bottom: clamp(36px, 8vw, 52px);
}
.thanks-lead .em-gold { font-size: 106%; }
.mail-help-box {
  text-align: left;
  background: var(--surface);
  border: 1px solid var(--border-line);
  border-radius: 8px;
  padding: clamp(22px, 5vw, 32px) clamp(18px, 4.5vw, 32px);
}
.mail-help-title {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(15px, 3.9vw, 17px);
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}
.mail-help-list { list-style: none; }
.mail-help-list li {
  font-size: clamp(13px, 3.4vw, 15px);
  color: var(--ink-sub);
  line-height: 1.9;
  padding-left: 1.2em;
  text-indent: -1.2em;
  margin-bottom: 8px;
}
.mail-help-list li:last-child { margin-bottom: 0; }

/* ============================================================
   レクチャー動画ページ（noindex）
   ============================================================ */
.video-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  color: #e8f4fa;
  background:
    radial-gradient(ellipse 90% 45% at 50% 0%, rgba(62, 232, 255, 0.16) 0%, transparent 70%),
    radial-gradient(ellipse 60% 40% at 95% 100%, rgba(96, 130, 255, 0.12) 0%, transparent 65%),
    linear-gradient(175deg, #0d1a26 0%, #070e17 55%, #04070c 100%);
}
.video-main {
  flex: 1;
  padding: clamp(36px, 8vw, 72px) clamp(16px, 4vw, 40px);
}
.video-wrap {
  max-width: 900px;
  margin: 0 auto;
}
.video-page .page-brand { color: rgba(190, 226, 242, 0.7); }

.video-day {
  font-family: 'Times New Roman', Times, 'Liberation Serif', serif;
  font-size: clamp(21px, 5.2vw, 28px);
  font-weight: 700;
  font-style: italic;
  color: #3ee8ff;
  letter-spacing: 0.06em;
  line-height: 1.4;
  text-align: center;
  text-shadow: 0 0 16px rgba(62, 232, 255, 0.6);
  margin-bottom: 8px;
}
.video-title {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(17px, 4.3vw, 23px);
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.06em;
  line-height: 1.75;
  text-align: center;
  text-shadow: 0 0 18px rgba(62, 232, 255, 0.4);
  margin-bottom: clamp(24px, 5.5vw, 38px);
}
.video-title .video-sub {
  font-size: 88%;
  font-weight: 400;
  color: rgba(206, 231, 243, 0.86);
  text-shadow: none;
}

.video-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #000;
  border: 1px solid rgba(62, 232, 255, 0.35);
  border-radius: 6px;
  overflow: hidden;
  box-shadow:
    0 18px 46px rgba(4, 12, 20, 0.55),
    0 0 30px rgba(62, 232, 255, 0.18);
}
.video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}