/* スムーススクロール */
  html { scroll-behavior: smooth; }

  .kakushin-hub {
    --brand:       #212947;
    --brand-deep:  #161D36;
    --brand-soft:  #EDEFF4;
    --gold:        #CCA433;
    --gold-deep:   #A48529;
    --gold-soft:   #FBF6E5;

    --ink:        #0F1014;
    --ink-soft:   #4A4D55;
    --ink-mute:   #8A8D94;
    --paper:      #FAFAF7;
    --paper-card: #FFFFFF;
    --line:       #E8E5DD;
    --line-strong:#D6D2C8;

    --serif:   "Shippori Mincho", "Noto Serif JP", "游明朝", "Yu Mincho", serif;
    --sans:    "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
    --display: "Cormorant Garamond", "Shippori Mincho", serif;

    font-family: var(--sans);
    color: var(--ink);
    background: var(--paper);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    font-feature-settings: "palt";
  }
  .kakushin-hub * { box-sizing: border-box; }
  .kakushin-hub img { max-width: 100%; height: auto; display: block; }
  .kakushin-hub a { color: var(--brand); text-decoration: none; }
  .kakushin-hub a:hover { text-decoration: underline; }

  .kakushin-hub .container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
  .kakushin-hub .container--narrow { max-width: 880px; }
  .kakushin-hub .section { padding: 80px 0; border-bottom: 1px solid var(--line); }
  .kakushin-hub .section:last-of-type { border-bottom: none; }

  .kakushin-hub .eyebrow {
    font-family: var(--display);
    font-size: 15px; letter-spacing: 0.2em; text-transform: uppercase;
    color: var(--brand); margin: 0 0 18px;
    display: inline-flex; align-items: center; gap: 12px;
    font-weight: 500;
  }
  .kakushin-hub .eyebrow::before {
    content: ""; display: inline-block;
    width: 28px; height: 2px; background: var(--gold);
  }
  .kakushin-hub .h2 {
    font-family: var(--serif);
    font-size: 35px; line-height: 1.5; font-weight: 600;
    margin: 0 0 32px; letter-spacing: 0.02em;
    color: var(--brand);
  }

  /* CTAボタン */
  .kakushin-hub .btn-cta {
    display: inline-flex; align-items: center; gap: 12px;
    font-family: var(--display);
    font-size: 17px; letter-spacing: 0.1em; font-weight: 600;
    color: var(--brand-deep);
    background: var(--gold);
    padding: 16px 40px;
    margin-top: 36px;
    border: 1px solid var(--gold-deep);
    transition: all 0.2s ease;
  }
  .kakushin-hub .btn-cta:hover {
    background: var(--gold-deep);
    color: #fff;
    text-decoration: none !important;
    transform: translateY(-2px);
    box-shadow: 0 10px 24px -12px rgba(164,133,41,0.6);
  }
  .kakushin-hub .btn-cta__arrow { font-size: 18px; }


  /* ============================================
     ① ファーストビュー
     ============================================ */
  .kakushin-hub .hero {
    position: relative;
    padding: 120px 0 100px;
    background:
      linear-gradient(135deg, var(--brand) 0%, var(--brand-deep) 100%);
    color: #fff;
    overflow: hidden;
    text-align: center;
  }
  /* 装飾: ゴールドの斜めライン (削除済み) */
  .kakushin-hub .hero__badge {
    font-family: var(--display);
    font-size: 15px; letter-spacing: 0.3em; text-transform: uppercase;
    color: var(--gold);
    margin: 0 0 24px;
    display: inline-flex; align-items: center; gap: 14px;
    font-weight: 500;
  }
  .kakushin-hub .hero__badge::before,
  .kakushin-hub .hero__badge::after {
    content: ""; display: inline-block;
    width: 32px; height: 1px; background: var(--gold);
  }
  .kakushin-hub .hero__title {
    font-family: var(--serif);
    font-size: 48px; line-height: 1.4; font-weight: 600;
    margin: 0 0 20px; letter-spacing: 0.02em;
    color: #fff;
  }
  .kakushin-hub .hero__subtitle {
    font-family: var(--serif);
    font-size: 25px; line-height: 1.5; font-weight: 500;
    margin: 0 0 32px;
    color: rgba(255,255,255,0.85);
  }
  .kakushin-hub .hero__lead {
    font-size: 17px; line-height: 1.95;
    color: rgba(255,255,255,0.95); font-weight: 500;
    margin: 0 auto;
    max-width: 640px;
  }
  .kakushin-hub .hero__meta {
    display: inline-flex; align-items: center; gap: 24px;
    margin-top: 40px;
    padding: 16px 28px;
    border: 1px solid rgba(204,164,51,0.4);
    background: rgba(0,0,0,0.15);
  }
  .kakushin-hub .hero__meta-item {
    display: flex; flex-direction: column; align-items: center; gap: 4px;
  }
  .kakushin-hub .hero__meta-num {
    font-family: var(--display);
    font-size: 31px; font-weight: 500;
    color: var(--gold); line-height: 1;
  }
  .kakushin-hub .hero__meta-label {
    font-size: 13px; color: rgba(255,255,255,0.7);
    letter-spacing: 0.15em; text-transform: uppercase;
  }
  .kakushin-hub .hero__meta-divider {
    width: 1px; height: 36px; background: rgba(255,255,255,0.2);
  }
    /* 開催概要（ファーストビューで情報を完結させる） */
    .kakushin-hub .hero__title-accent { color: var(--gold); }
    .kakushin-hub .hero .sp-br { display: none; }
    .kakushin-hub .hero__info { margin: 40px auto 0; max-width: 780px; border: 1px solid rgba(204,164,51,0.55); background: rgba(0,0,0,0.18); padding: 28px 32px 32px; }
    .kakushin-hub .hero__date { font-family: var(--serif); font-weight: 600; color: #fff; font-size: 34px; line-height: 1.3; letter-spacing: 0.02em; margin: 0; }
    .kakushin-hub .hero__date small { font-size: 24px; color: var(--gold); margin-left: 14px; }
    .kakushin-hub .hero__facts { list-style: none; margin: 18px 0 0; padding: 0; display: flex; justify-content: center; flex-wrap: wrap; gap: 8px 0; font-size: 15px; color: rgba(255,255,255,0.85); }
    .kakushin-hub .hero__facts li { padding: 0 18px; border-left: 1px solid rgba(255,255,255,0.25); }
    .kakushin-hub .hero__facts li:first-child { border-left: 0; }
    .kakushin-hub .hero__facts b { color: var(--gold); font-weight: 700; }
    .kakushin-hub .hero__info .btn-cta { margin-top: 24px; }


  /* ============================================
     ② About
     ============================================ */
  .kakushin-hub .about {
    padding: 80px 0;
    background: var(--paper-card);
    border-bottom: 1px solid var(--line);
    text-align: center;
  }
  .kakushin-hub .about .eyebrow { justify-content: center; }
  .kakushin-hub .about__lead {
    font-size: 18px; line-height: 1.95; color: var(--ink-soft);
    margin: 0 auto; max-width: 760px;
  }


  /* ============================================
     ③ セッション一覧
     ============================================ */
  .kakushin-hub .sessions {
    padding: 80px 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
  }
  .kakushin-hub .sessions__grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
    margin-top: 8px;
  }

  .kakushin-hub .scard {
    background: var(--paper-card);
    border: 1px solid var(--line);
    overflow: hidden;
    display: flex; flex-direction: column;
    transition: all 0.2s ease;
    cursor: pointer;
  }
  .kakushin-hub .scard:hover {
    border-color: var(--brand);
    transform: translateY(-3px);
    box-shadow: 0 12px 28px -16px rgba(33,41,71,0.25);
    text-decoration: none !important;
  }
  /* サムネ枠 (16:9) */
  .kakushin-hub .scard__thumb {
    position: relative;
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, var(--brand-soft) 0%, var(--paper) 100%);
    display: flex; align-items: center; justify-content: center;
    border-bottom: 3px solid var(--gold);
    overflow: hidden;
  }
  .kakushin-hub .scard__thumb img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }
  .kakushin-hub .scard__thumb-placeholder {
    font-family: var(--display);
    font-size: 14px; letter-spacing: 0.2em;
    color: var(--ink-mute);
  }
  .kakushin-hub .scard__num {
    position: absolute; top: 12px; left: 12px;
    background: var(--brand); color: #fff;
    font-family: var(--display);
    font-size: 13px; font-weight: 500;
    letter-spacing: 0.15em;
    padding: 4px 10px;
  }
  .kakushin-hub .scard__time {
    position: absolute; bottom: 12px; right: 12px;
    background: rgba(15,16,20,0.85); color: #fff;
    font-family: var(--display);
    font-size: 13px; font-weight: 500;
    letter-spacing: 0.05em;
    padding: 4px 10px;
  }

  .kakushin-hub .scard__body {
    padding: 24px 28px 28px;
    display: flex; flex-direction: column;
    flex: 1;
  }
  .kakushin-hub .scard__category {
    display: inline-block;
    font-family: var(--display);
    font-size: 13px; letter-spacing: 0.15em;
    color: var(--gold-deep);
    margin: 0 0 14px; font-weight: 500;
  }
  .kakushin-hub .scard__title {
    font-family: var(--serif);
    font-size: 22px; line-height: 1.5; font-weight: 600;
    margin: 0 0 12px;
    color: var(--brand);
  }
  .kakushin-hub .scard__sub {
    font-size: 15px; line-height: 1.8;
    color: var(--ink-soft);
    margin: 0 0 24px;
    flex: 1;
  }
  .kakushin-hub .scard__footer {
    display: flex; align-items: center; justify-content: space-between;
    padding-top: 18px;
    border-top: 1px solid var(--line);
    gap: 12px;
  }
  .kakushin-hub .scard__speaker {
    font-size: 14px; color: var(--ink-mute);
    letter-spacing: 0.02em;
  }
  .kakushin-hub .scard__cta {
    font-family: var(--display);
    font-size: 15px; letter-spacing: 0.1em; font-weight: 500;
    color: var(--brand);
    display: inline-flex; align-items: center; gap: 8px;
    transition: gap 0.2s ease;
  }
  .kakushin-hub .scard:hover .scard__cta { gap: 12px; }
  .kakushin-hub .scard__cta-arrow { color: var(--gold); }


  /* ============================================
     レスポンシブ
     ============================================ */
  .kakushin-hub .hero { padding: 80px 0 0; }
.kakushin-hub .hero > .container { max-width: 1600px; }
.kakushin-hub .hero__lead { max-width: 760px; }
.kakushin-hub .hero__benefit { display: block; margin: 0 0 8px; color: #fff; font-family: var(--serif); font-weight: 600; font-size: 24px; line-height: 1.6; letter-spacing: 0.04em; }
.kakushin-hub .hero__domains { display: block; margin: 0 0 10px; color: var(--gold); font-weight: 700; font-size: 19px; letter-spacing: 0.12em; }
.kakushin-hub .hero__row { display: grid; grid-template-columns: minmax(0, 1fr) 420px minmax(0, 1fr); gap: 24px; align-items: end; margin-top: 28px; }
.kakushin-hub .hero__row .hero__info { margin: 0 0 56px; max-width: none; text-align: center; }
.kakushin-hub .hero__row .hero__date small { display: block; margin: 6px 0 0; }
.kakushin-hub .hero__row .hero__facts { flex-direction: column; gap: 6px; justify-content: flex-start; width: fit-content; margin: 18px auto 0; text-align: left; }
.kakushin-hub .hero__row .hero__facts li { border-left: 0; padding: 0 0 0 16px; position: relative; }
.kakushin-hub .hero__row .hero__facts li::before { content: ''; position: absolute; left: 0; top: 0.7em; width: 6px; height: 6px; background: var(--gold); }
.kakushin-hub .hero__speakers { margin: 0; min-width: 0; }
.kakushin-hub .hero__speakers img { display: block; height: min(454px, calc((min(100vw, 1600px) - 516px) * 0.40)); width: auto; max-width: none; }
.kakushin-hub .hero__speakers--left img { height: min(465px, calc((min(100vw, 1600px) - 516px) * 0.41)); }
.kakushin-hub .hero__speakers--left { justify-self: end; }
.kakushin-hub .hero__speakers--right { justify-self: start; }
@media (max-width: 960px) {
  .kakushin-hub .hero { padding-bottom: 80px; }
  .kakushin-hub .hero__row { grid-template-columns: auto auto; grid-template-areas: "l r" "info info"; justify-content: center; gap: 0; margin-top: 28px; }
  .kakushin-hub .hero__speakers--left { grid-area: l; margin-right: -14px; position: relative; z-index: 1; }
  .kakushin-hub .hero__speakers--right { grid-area: r; }
  .kakushin-hub .hero__speakers img { height: clamp(151px, 39vw, 303px); -webkit-mask-image: linear-gradient(#000 75%, transparent); mask-image: linear-gradient(#000 75%, transparent); }
  .kakushin-hub .hero__speakers--left img { height: clamp(155px, 40vw, 311px); }
  .kakushin-hub .hero__row .hero__info { grid-area: info; position: relative; z-index: 2; margin: -20px auto 0; width: 100%; max-width: 560px; box-sizing: border-box; }
}
@media (max-width: 720px) {
  .kakushin-hub .hero__benefit { font-size: 19px; }
  .kakushin-hub .hero .pc-br { display: none; }
  .kakushin-hub .hero__domains { font-size: 16px; letter-spacing: 0.04em; }
    .kakushin-hub .section { padding: 56px 0; }
    .kakushin-hub .hero { padding: 80px 0 64px; }
    .kakushin-hub .hero__title { font-size: 31px; }
    .kakushin-hub .hero__subtitle { font-size: 19px; }
    .kakushin-hub .hero__lead { font-size: 16px; }
    .kakushin-hub .hero__meta { flex-wrap: wrap; gap: 16px; padding: 14px 20px; }
    .kakushin-hub .hero__meta-divider { display: none; }
      .kakushin-hub .hero .sp-br { display: inline; }
      .kakushin-hub .hero__info { padding: 22px 16px 24px; }
      .kakushin-hub .hero__date { font-size: 25px; }
      .kakushin-hub .hero__date small { display: block; margin: 4px 0 0; font-size: 19px; }
      .kakushin-hub .hero__facts { flex-direction: column; gap: 4px; }
      .kakushin-hub .hero__facts li { border-left: 0; padding: 0; }
    .kakushin-hub .h2 { font-size: 27px; }

    .kakushin-hub .about { padding: 56px 0; }
    .kakushin-hub .sessions { padding: 56px 0; }
    .kakushin-hub .sessions__grid { grid-template-columns: 1fr; gap: 16px; }
    .kakushin-hub .scard__title { font-size: 19px; }

  }