/* 1. Design tokens / base */
:root {
  /* ベースカラー（FVのキービジュアルに合わせた深い紺） */
  --color-white: #fff;
  --color-navy: #0a1a33;
  --color-navy-deep: #000d20;
  --color-navy-hi: #12305a;
  --color-ink: #111c2d;
  --color-muted: #5c6470;
  --color-faded: #8a919a;
  --color-taupe: #5f6b7a;
  --color-steel: #4a6180;

  /* アクセント（FVのオレンジとシアン） */
  --color-accent: #e8901a;
  --color-accent-hi: #f5a83a;
  --color-accent-ink: #a84f00;
  --color-accent-soft: #f0b25c;
  --color-accent-pale: #f6cf96;
  --color-on-accent: #0a1a33;
  --color-cyan: #14b0d2;

  /* サーフェス */
  --color-paper: #f7f9fb;
  --color-cream: #eef2f6;
  --color-cream-soft: #f3f6f9;
  --color-ivory: #edf1f5;
  --color-sand: #e3e8ee;

  /* ライン */
  --color-line: #dde3ea;
  --color-line-soft: #d9e0e8;
  --color-line-mist: #e2e8ee;
  --color-line-strong: #cfd7e0;
  --color-line-faint: #e9eef3;
  --color-tag-line: #c6cfd9;
  --color-steel-line: #9fb0c4;
  --color-navy-hairline: rgba(10, 26, 51, .08);

  /* アクセントの透過ライン(濃→淡) */
  --color-accent-line-strong: rgba(232, 144, 26, .55);
  --color-accent-line: rgba(232, 144, 26, .45);
  --color-accent-line-faint: rgba(232, 144, 26, .25);
  --color-accent-ink-line: rgba(168, 79, 0, .4);

  /* スポンサーランク */
  --color-rank-platinum: #b9c4d4;
  --color-rank-platinum-line: rgba(185, 196, 212, .65);
  --color-rank-gold: #c9a227;
  --color-rank-silver: #a7adb8;
  --color-rank-bronze: #ad6b3e;
  --color-rank-media: #b3b3ae;

  /* 面(合成色) */
  --color-header-bg: rgba(0, 13, 32, .95);
  --color-navy-veil: rgba(0, 13, 32, .35);
  --color-placeholder: #b9c3cf;

  /* CTA */
  --color-cta: #ff8600;
  --color-cta-hover: #ea7900;
  --color-on-cta: #0a1a33;
  --color-cta-line: rgba(0, 13, 32, .14);
  --shadow-cta: 0 8px 18px rgba(0, 13, 32, .14);

  /* グラデーション */
  --grad-navy: linear-gradient(158deg, var(--color-navy-hi) 0%, var(--color-navy) 46%, var(--color-navy-deep) 100%);
  --grad-medallion: linear-gradient(165deg, #173a66 0%, #0d2647 58%, var(--color-navy-deep) 100%);
  --grad-message-veil: linear-gradient(158deg, rgba(18, 48, 90, .7) 0%, rgba(10, 26, 51, .66) 46%, rgba(0, 13, 32, .84) 100%);
  --grad-glow: radial-gradient(closest-side, rgba(20, 176, 210, .16), rgba(20, 176, 210, 0) 70%);
  --font-body: 'Roboto', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Hiragino Sans', 'Yu Gothic', Meiryo, sans-serif;
  --font-heading: 'Roboto', 'Noto Sans JP', sans-serif;
  --font-accent: 'Roboto', 'Noto Sans JP', sans-serif;

  --shadow-panel: 0 24px 60px rgba(10, 26, 51, .07);
  --shadow-card: 0 14px 34px rgba(10, 26, 51, .06);
  --shadow-navy: 0 18px 38px rgba(0, 13, 32, .22);

  /* 行送りのハーフレディングを相殺するトリム量(負値) */
  --leading-trim: calc((1em - 1lh) / 2);

  --container-max: 1180px;
  --container-wide: 1680px;
  --container-pad: clamp(20px, 2.6vw, 34px);
}

@supports not (top: 1lh) {
  :root {
    --leading-trim: 0px;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color .2s ease, border-color .2s ease;
}

@media (hover: hover) {
  a:hover {
    color: var(--color-accent);
  }
}

::selection {
  background: var(--color-navy);
  color: var(--color-paper);
}

/* 2. Layout */
.l-container {
  max-width: var(--container-max);
  margin: auto;
  padding: 0 var(--container-pad);
}

/* 3. Generic blocks */
.u-text-unit {
  display: inline-block;
  max-width: 100%;
}

.u-nowrap {
  white-space: nowrap;
}

.u-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.c-eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0;
  font-family: var(--font-accent);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: .32em;
  text-transform: uppercase;
  color: var(--color-accent-ink);
}

.c-eyebrow::before {
  content: "";
  width: 36px;
  height: 1px;
  background: var(--color-accent);
  flex: none;
}

.c-eyebrow--dark {
  color: var(--color-accent-soft);
}

.c-eyebrow--center {
  justify-content: center;
}

.c-eyebrow--center::after {
  content: "";
  width: 36px;
  height: 1px;
  background: var(--color-accent);
  flex: none;
}

.c-diamond {
  display: inline-block;
  width: 5px;
  height: 5px;
  background: var(--color-accent);
  transform: rotate(45deg);
  flex: none;
}

.c-tag {
  display: inline-block;
  border: 1px solid var(--color-tag-line);
  color: var(--color-taupe);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  letter-spacing: .03em;
  white-space: nowrap;
}

.c-tag--gold {
  background: transparent;
  border-color: var(--color-accent);
  color: var(--color-accent-ink);
}

.c-tag--steel {
  border-color: var(--color-steel-line);
  color: var(--color-steel);
}

.c-tag--gold-pale {
  border-color: var(--color-accent-pale);
  color: var(--color-accent-ink);
}

.c-tag--gold-line {
  border-color: var(--color-accent);
  color: var(--color-accent-ink);
}

.c-surface {
  background: var(--color-white);
  box-shadow: var(--shadow-card);
}

.c-surface--panel {
  box-shadow: var(--shadow-panel);
}

.c-modal {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(16px, 3vw, 32px);
}

.c-modal[hidden] {
  display: none;
}

.c-modal__scrim {
  position: absolute;
  inset: 0;
  background: rgba(0, 13, 32, .55);
  backdrop-filter: blur(4px);
}

.c-modal__panel {
  position: relative;
  width: 100%;
  max-width: 640px;
  max-height: 86vh;
  overflow-y: auto;
  background: var(--color-white);
  border-radius: 3px;
  box-shadow: 0 30px 80px rgba(10, 26, 51, .4);
  padding: clamp(28px, 4vw, 44px);
}

.c-modal__close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 40px;
  height: 40px;
  border: 0;
  background: none;
  cursor: pointer;
  font-size: 32px;
  line-height: 1;
  color: var(--color-faded);
  border-radius: 3px;
  transition: color .2s ease, background-color .2s ease;
}

@media (hover: hover) {
  .c-modal__close:hover {
    color: var(--color-navy);
    background: var(--color-cream);
  }
}

.c-modal .c-modal__panel {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .25s ease, transform .25s ease;
}

.c-modal .c-modal__scrim {
  opacity: 0;
  transition: opacity .25s ease;
}

.c-modal.is-open .c-modal__panel,
.c-modal.is-open .c-modal__scrim {
  opacity: 1;
  transform: none;
}

.c-button {
  transition: background-color .2s ease;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-cta);
  color: var(--color-on-cta);
  border: 1px solid var(--color-cta-line);
  border-radius: 3px;
  font-weight: 700;
  box-shadow: var(--shadow-cta);
}

@media (hover: hover) {
  .c-button:hover {
    background-color: var(--color-cta-hover);
    color: var(--color-on-cta);
  }
}

.c-button__arrow {
  position: absolute;
  right: 18px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-top: 1.5px solid currentColor;
  border-right: 1.5px solid currentColor;
  transform: translateY(-50%) rotate(45deg);
}

.c-button--header {
  padding: 8px 34px;
  font-size: 16px;
}

.c-button--header .c-button__arrow {
  right: 14px;
}

.c-button--mobile-header {
  display: none;
}

.c-button--register {
  min-width: min(340px, 100%);
  padding: 18px 34px;
  font-size: 16px;
}

/* スマホのみ。画面内に他の登録ボタンが無いときだけ画面下に出す（表示切替は main.js） */
.c-button--floating {
  display: none;
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 40;
  min-width: 260px;
  min-height: 60px;
  padding: 16px 52px 16px 32px;
  font-size: 17px;
  letter-spacing: .06em;
  box-shadow: 0 12px 28px rgba(0, 13, 32, .28);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: opacity .3s ease, transform .3s ease, visibility 0s linear .3s, background-color .2s ease;
}

.c-button--floating.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition: opacity .3s ease, transform .3s ease, background-color .2s ease;
}

.c-button--floating .c-button__label {
  white-space: nowrap;
}

.c-button--floating .c-button__note {
  font-size: .78em;
  letter-spacing: .02em;
}

.c-button--floating .c-button__arrow {
  right: 22px;
}

.c-button--floating:focus-visible {
  outline: 3px solid var(--color-navy);
  outline-offset: 4px;
}

@media (max-width: 620px) {
  .c-button--floating {
    display: inline-flex;
    right: 16px;
    left: 16px;
    bottom: 12px;
    min-width: 0;
    min-height: 56px;
    font-size: 16px;
  }
}

.c-organizer {
  display: flex;
  align-items: center;
  gap: 11px;
  margin: 0;
}

.c-organizer__label {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-taupe);
  letter-spacing: .1em;
  white-space: nowrap;
}

.c-organizer__rule {
  width: 1px;
  height: 16px;
  background: var(--color-line-strong);
}

.c-organizer__logo {
  height: clamp(16px, 1.5vw, 21px);
  width: auto;
  display: block;
}

.c-organizer__logo--lg {
  height: 23px;
}

.c-organizer--dark {
  justify-content: center;
}

.c-organizer--dark .c-organizer__label {
  color: rgba(255, 255, 255, .6);
}

.c-organizer--dark .c-organizer__rule {
  height: 18px;
  background: rgba(255, 255, 255, .28);
}

/* 4. Header */
.l-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--color-header-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-accent-line);
}

.l-header__inner {
  max-width: var(--container-wide);
  width: 92vw;
  min-height: 60px;
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 28px);
  flex-wrap: wrap;
  padding-top: 6px;
  padding-bottom: 6px;
}

.l-header__brand {
  margin-right: auto;
  display: flex;
  align-items: center;
  line-height: 0;
}

.l-header__logo {
  height: clamp(26px, 2.4vw, 32px);
  width: auto;
  display: block;
}

.l-header__menu-button {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
}

.l-header__menu-icon,
.l-header__menu-icon::before,
.l-header__menu-icon::after {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-white);
  transition: transform .25s ease, top .25s ease, background-color .2s ease;
}

.l-header__menu-icon {
  position: relative;
}

.l-header__menu-icon::before,
.l-header__menu-icon::after {
  content: "";
  position: absolute;
  left: 0;
}

.l-header__menu-icon::before {
  top: -7px;
}

.l-header__menu-icon::after {
  top: 7px;
}

.is-open .l-header__menu-icon {
  background: none;
}

.is-open .l-header__menu-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.is-open .l-header__menu-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

.c-global-nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 1.8vw, 26px);
  flex-wrap: wrap;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .04em;
  color: rgba(255, 255, 255, .86);
}

.c-global-nav__link {
  padding: 4px 0;
}

@media (hover: hover) {
  .c-global-nav__link:hover {
    color: var(--color-accent-hi);
  }
}

/* 5. Hero */
.p-hero {
  position: relative;
  background: var(--color-navy-deep);
}

.p-hero__visual {
  /* 登録ボタンまでが最初の画面に収まるよう、キービジュアルの幅を画面の高さから決める（比率 4800:2520） */
  --hero-art-width: min(100%, max(760px, calc((100vh - 200px) * 1.905)));
  position: relative;
  isolation: isolate;
  overflow: hidden;
}

/* 横長の画面でキービジュアルの左右に空く部分は、同じ画像をぼかして埋める */
.p-hero__visual::before {
  content: "";
  position: absolute;
  inset: -40px;
  z-index: 0;
  background: url("../images/hero-pc.webp") center / cover no-repeat;
  filter: blur(28px) brightness(.5);
}
/* キービジュアル全体を参加登録フォームへのリンクにする */
.p-hero__link {
  display: block;
}

.p-hero__link:focus-visible {
  outline: 3px solid var(--color-white);
  outline-offset: -6px;
}

@media (hover: hover) {
  .p-hero__link:hover .p-hero__image {
    filter: brightness(1.06);
  }
}

.p-hero__picture {
  position: relative;
  z-index: 2;
  display: block;
  width: var(--hero-art-width);
  margin-inline: auto;
}

.p-hero__image {
  display: block;
  width: 100%;
  height: auto;
  transition: filter .2s ease;
}

.p-hero__action {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 20px var(--container-pad) 8px;
  background: var(--color-navy-deep);
  border-top: 1px solid var(--color-accent-line-faint);
}

/* 下にコンテンツが続くことを示す「∨」。押すと次のセクションへ移動 */
.p-hero__scroll {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 28px;
  color: rgba(255, 255, 255, .7);
}

.p-hero__scroll::before {
  content: "";
  width: 12px;
  height: 12px;
  margin-top: -6px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  animation: hero-scroll-hint 1.8s ease-in-out infinite;
}

@keyframes hero-scroll-hint {
  0%, 100% { translate: 0 0; opacity: .6; }
  50% { translate: 0 5px; opacity: 1; }
}

@media (hover: hover) {
  .p-hero__scroll:hover {
    color: var(--color-accent-hi);
  }
}

/* 「∨」から移動したとき、ヘッダー（60px）の真下にセクションの頭が来るようにする（html の scroll-padding-top 100px を打ち消す） */
.p-section--message {
  scroll-margin-top: -40px;
}

.c-button--hero {
  width: min(100%, 360px);
  min-height: 64px;
  padding: 17px 52px;
  border-radius: 2px;
  font-size: 18px;
  letter-spacing: .08em;
  transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease;
}

.c-button--hero .c-button__label {
  white-space: nowrap;
}

.c-button--hero .c-button__note {
  font-size: .78em;
  letter-spacing: .02em;
}

.c-button--hero .c-button__arrow {
  right: 26px;
  width: 10px;
  height: 10px;
}

.c-button--hero:focus-visible {
  outline: 3px solid var(--color-white);
  outline-offset: 4px;
}

@media (hover: hover) {
  .c-button--hero:hover {
    transform: translateY(-2px);
  }
}
/* 6. Sections（共通シェル） */
.p-section {
  position: relative;
  z-index: 0;
  padding: clamp(60px, 8vw, 120px) 0;
  overflow: hidden;
}

.p-section--cream {
  background: var(--color-cream);
}

.p-section--bordered {
  border-top: 1px solid var(--color-line-soft);
}

.p-section--navy {
  background: var(--grad-navy);
  color: var(--color-white);
}

.p-section--message {
  background:
    var(--grad-message-veil),
    url("../images/message-bg.webp") center / cover no-repeat,
    var(--color-navy);
}

.p-section--center {
  text-align: center;
}

.p-section--tile-a::before,
.p-section--tile-b::before,
.p-section--tile-b-dark::before,
.p-section--tile-d::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.p-section--tile-a::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns=%27http://www.w3.org/2000/svg%27 width=%2756%27 height=%2756%27%3E%3Crect x=%2725%27 y=%2725%27 width=%276%27 height=%276%27 fill=%27%230a1a33%27 fill-opacity=%270.048%27 transform=%27rotate(45 28 28)%27/%3E%3Crect x=%2753%27 y=%27-3%27 width=%276%27 height=%276%27 fill=%27%23e8901a%27 fill-opacity=%270.11%27 transform=%27rotate(45 56 0)%27/%3E%3Crect x=%27-3%27 y=%2753%27 width=%276%27 height=%276%27 fill=%27%23e8901a%27 fill-opacity=%270.11%27 transform=%27rotate(45 0 56)%27/%3E%3C/svg%3E");
}

.p-section--tile-b::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns=%27http://www.w3.org/2000/svg%27 width=%2764%27 height=%2774%27%3E%3Cg fill=%27none%27 stroke=%27%230a1a33%27 stroke-opacity=%270.045%27%3E%3Cpath d=%27M32 0 L64 18.5 L64 55.5 L32 74 L0 55.5 L0 18.5 Z%27/%3E%3Cpath d=%27M0 18.5 L32 37 L64 18.5 M32 37 L32 74%27/%3E%3C/g%3E%3C/svg%3E");
}

.p-section--tile-b-dark::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns=%27http://www.w3.org/2000/svg%27 width=%2764%27 height=%2774%27%3E%3Cg fill=%27none%27 stroke=%27%23ffffff%27 stroke-opacity=%270.055%27%3E%3Cpath d=%27M32 0 L64 18.5 L64 55.5 L32 74 L0 55.5 L0 18.5 Z%27/%3E%3Cpath d=%27M0 18.5 L32 37 L64 18.5 M32 37 L32 74%27/%3E%3C/g%3E%3C/svg%3E");
}

.p-section--tile-d::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns=%27http://www.w3.org/2000/svg%27 width=%2748%27 height=%2748%27%3E%3Cg fill=%27none%27 stroke=%27%230a1a33%27 stroke-opacity=%270.042%27%3E%3Cpath d=%27M0 48 L48 0 M-12 12 L12 -12 M36 60 L60 36%27/%3E%3Cpath d=%27M0 0 L48 48 M36 -12 L60 12 M-12 36 L12 60%27/%3E%3C/g%3E%3Ccircle cx=%2724%27 cy=%2724%27 r=%271.4%27 fill=%27%23e8901a%27 fill-opacity=%27.13%27/%3E%3C/svg%3E");
}

.p-section--navy::after {
  content: "";
  position: absolute;
  z-index: -1;
  pointer-events: none;
  width: 1100px;
  height: 1100px;
  right: -360px;
  top: -420px;
  background: var(--grad-glow);
}

.p-section__title {
  font-family: var(--font-heading);
  font-size: clamp(25px, calc(-2px + 3.75vw), 49px);
  text-align: center;
  font-weight: 700;
  letter-spacing: -.008em;
  color: var(--color-navy);
  margin: 0;
  /* 上はテキストの半レディングを相殺。下は金バーで終わるためトリム不要 */
  margin-block-start: var(--leading-trim);
  margin-block-end: clamp(40px, 4.4vw, 56px);
}

.p-section__title::after {
  content: "";
  display: block;
  width: 44px;
  height: 6px;
  background: var(--color-accent);
  margin: 8px auto 0;
}

/* 見出し直下の説明文。見出しの下余白を詰めて見出しとひとまとまりに見せる */
.p-section__lead {
  max-width: 56em;
  margin: calc(-1 * clamp(16px, 2vw, 24px)) auto clamp(36px, 4vw, 52px);
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-muted);
  text-align: center;
  text-wrap: pretty;
  /* 「サプ／ライチェーン」のような語の途中での改行を避ける（対応ブラウザのみ） */
  word-break: auto-phrase;
}

@media (max-width: 620px) {
  .p-section__lead {
    font-size: 15px;
    text-align: left;
  }
}

.p-section__note {
  margin: 16px 0 0;
  font-size: 12px;
  color: var(--color-muted);
}

/* 7. Message */
.p-message {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
  gap: clamp(28px, 3.5vw, 56px);
  align-items: center;
}

.p-message__quote {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(31px, 3.8vw, 49px);
  line-height: 1.4;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--color-white);
  text-wrap: balance;
}

.p-message__body {
  display: grid;
  gap: 18px;
  max-width: 540px;
  border-left: 1px solid var(--color-accent-line);
  padding-left: clamp(20px, 2vw, 28px);
}

.p-message__text {
  margin: 0;
  font-size: 17px;
  line-height: 1.9;
  color: rgba(255, 255, 255, .9);
  text-wrap: pretty;
}

@media (max-width: 760px) {
  .p-message {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .p-message__body {
    max-width: none;
    padding-top: 24px;
    padding-left: 0;
    border-top: 1px solid var(--color-accent-line);
    border-left: 0;
  }

  .p-message__text {
    font-size: 16px;
  }
}

/* 7.5 実績（来場者数） */
.p-photo-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2px;
}

/* タブレット幅は 2×2 */
@media (max-width: 900px) {
  .p-photo-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.p-photo-strip__item {
  margin: 0;
  overflow: hidden;
}

.p-photo-strip__photo {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.p-photo-strip__lead {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 8px;
  margin: -28px 0 clamp(32px, 3.6vw, 44px);
  color: var(--color-navy);
}

.p-photo-strip__lead-num {
  font-family: var(--font-accent);
  font-size: clamp(49px, 4.4vw, 64px);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1;
}

.p-photo-strip__lead-unit {
  font-size: 20px;
  font-weight: 700;
}

/* 8. Speakers */
.p-speaker-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.p-speaker-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  border: 1px solid var(--color-line);
  padding: 30px 16px 24px;
  text-align: center;
}

.p-speaker-card::before {
  content: "";
  position: absolute;
  inset: 6px;
  border: 1px solid var(--color-accent-line-faint);
  pointer-events: none;
}

.p-speaker-card__medallion {
  width: 92px;
  height: 92px;
  border-radius: 50%;
  margin: 0 auto 18px;
  position: relative;
  background: var(--grad-medallion);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 31px;
  font-weight: 600;
  color: rgba(255, 255, 255, .96);
}

.p-speaker-card__medallion::before {
  content: "";
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .14);
}

.p-speaker-card__medallion::after {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 1px solid var(--color-accent-line-strong);
}

.p-speaker-card__medallion--photo {
  width: 150px;
  height: 150px;
  overflow: hidden;
  background: none;
  border: 1px solid var(--color-navy-hairline);
}

.p-speaker-card__medallion--photo::before,
.p-speaker-card__medallion--photo::after {
  content: none;
}

.p-speaker-card__photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.p-speaker-card__name {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-navy);
  letter-spacing: .02em;
  line-height: 1.4;
}

.p-speaker-card__name--soon {
  font-family: var(--font-accent);
  letter-spacing: .06em;
}

.p-speaker-card__divider {
  display: block;
  width: 26px;
  height: 1px;
  background: var(--color-accent-line-strong);
  margin: 10px auto 12px;
}

.p-speaker-card__role {
  margin: 0;
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.4;
  display: grid;
  gap: 4px;
  justify-items: center;
  align-content: center;
  flex-grow: 1;
}

.p-speaker-card__profile-button {
  margin-top: 14px;
  padding: 2px 2px 3px;
  border: 0;
  background: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent-ink);
  border-bottom: 1px solid var(--color-accent-ink-line);
  transition: color .2s ease, border-color .2s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* 文字の後ろにリンクアイコン。::after はクリック範囲用なので ::before を order で後ろへ回す */
.p-speaker-card__profile-button::before {
  content: "";
  order: 1;
  width: 12px;
  height: 12px;
  background: currentColor;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns=%27http://www.w3.org/2000/svg%27 viewBox=%270 0 24 24%27 fill=%27none%27 stroke=%27%23000%27 stroke-width=%272.4%27 stroke-linecap=%27round%27 stroke-linejoin=%27round%27%3E%3Cpath d=%27M14 3h7v7M21 3l-9 9M19 14v5a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V7a2 2 0 0 1 2-2h5%27/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns=%27http://www.w3.org/2000/svg%27 viewBox=%270 0 24 24%27 fill=%27none%27 stroke=%27%23000%27 stroke-width=%272.4%27 stroke-linecap=%27round%27 stroke-linejoin=%27round%27%3E%3Cpath d=%27M14 3h7v7M21 3l-9 9M19 14v5a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V7a2 2 0 0 1 2-2h5%27/%3E%3C/svg%3E") center / contain no-repeat;
}

/* ボタンのクリック範囲をカード全体に広げる */
.p-speaker-card__profile-button::after {
  content: "";
  position: absolute;
  inset: 0;
}

@media (hover: hover) {
  .p-speaker-card__profile-button:hover {
    color: var(--color-accent);
    border-bottom-color: var(--color-accent);
  }
}

.p-speaker-profile {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
  align-items: start;
}

.p-speaker-profile__photo {
  width: 120px;
  height: 120px;
  overflow: hidden;
  border-radius: 50%;
  border: 1px solid var(--color-navy-hairline);
}

.p-speaker-profile__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.p-speaker-profile__name {
  margin: 6px 0 4px;
  font-family: var(--font-heading);
  font-size: 25px;
  font-weight: 700;
  color: var(--color-navy);
  letter-spacing: .02em;
}

.p-speaker-profile__role {
  margin: 0;
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
}

.p-speaker-profile__role .p-speaker-card__role-line {
  display: block;
}

.p-speaker-profile__bio {
  white-space: pre-line;
  margin: 16px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--color-line-faint);
  font-size: 14px;
  color: var(--color-muted);
  line-height: 2;
}

@media (max-width: 620px) {
  .p-speaker-profile {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .p-speaker-profile__bio {
    text-align: left;
  }
}

/* 9. Timetable */
.p-timetable {
  position: relative;
  border-top: 1px solid var(--color-line-soft);
  padding-left: 36px;
}

.p-timetable::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 64px;
  bottom: 24px;
  width: 1px;
  background: var(--color-line-strong);
}

.p-timetable__date-row {
  margin-left: -36px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 14px 20px;
  background: var(--color-cream-soft);
  border-bottom: 1px solid var(--color-line-soft);
}

.p-timetable__date-row p {
  margin: 0;
}

.p-timetable__date strong {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-navy);
  letter-spacing: -.01em;
  font-variant-numeric: tabular-nums;
}

.p-timetable__dow {
  margin-left: 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--color-accent-ink);
}

.p-timetable__hours {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-navy);
  font-variant-numeric: tabular-nums;
}

.p-session {
  --session-padding-y: clamp(28px, 3vw, 38px);
  --session-node-offset: 10px;
  position: relative;
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 0 clamp(16px, 2.4vw, 36px);
  padding: var(--session-padding-y) 0 var(--session-padding-y) 20px;
  border-bottom: 1px solid var(--color-line-soft);
  align-items: start;
}

.p-session::before {
  content: "";
  position: absolute;
  left: -32px;
  top: calc(var(--session-padding-y) + var(--session-node-offset));
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 4px var(--color-accent-line-faint);
}

.p-session--break::before {
  background: var(--color-tag-line);
  box-shadow: 0 0 0 4px rgba(207, 199, 188, .3);
}

.p-session__time {
  padding-top: 2px;
}

.p-session__start {
  display: block;
  font-size: 25px;
  font-weight: 700;
  color: var(--color-navy);
  line-height: 1;
  letter-spacing: -.01em;
  font-variant-numeric: tabular-nums;
}

.p-session__end {
  display: block;
  font-size: 16px;
  color: var(--color-muted);
  font-variant-numeric: tabular-nums;
  margin-top: 6px;
}

.p-session__duration {
  display: block;
  font-size: 14px;
  color: var(--color-faded);
  margin-top: 8px;
  letter-spacing: .04em;
}

.p-session__content {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, calc(17.357143px + 1.071429vw), 30px);
  align-items: start;
  /* 登壇者のサイズは画面幅ではなく、この列の実幅に追従 */
  container-type: inline-size;
}

.p-session__main {
  --session-title-size: clamp(24px, 2.2vw, 31px);
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 14px;
}

.p-session__tag {
  display: block;
  margin: 0;
  padding: 0;
  color: var(--color-muted);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: .08em;
}

/* 「」で始まるタイトルは括弧をぶら下げて左端を揃える */
.p-session__subtitle {
  display: inline-block;
  max-width: 100%;
  margin-left: 16px;
  font-size: calc(var(--session-title-size) * .6);
  font-weight: 500;
  color: var(--color-muted);
  letter-spacing: .005em;
}

.p-session__tag--category {
  margin: 2px 0 4px;
  padding-left: 14px;
  border-left: 4px solid var(--color-accent);
  color: var(--color-accent-ink);
  font-size: calc(var(--session-title-size) * .85);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: .03em;
}

.p-session__title {
  font-family: var(--font-heading);
  font-size: var(--session-title-size);
  line-height: 1.45;
  margin: 0;
  color: var(--color-navy);
  font-weight: 700;
  letter-spacing: -.018em;
  text-wrap: pretty;
}

.p-session__speakers {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: clamp(18px, 2.5cqw, 28px);
}

.p-session__speaker {
  flex: 1 1 0;
  min-width: 0;
  max-width: 400px;
  display: flex;
  align-items: center;
  gap: clamp(14px, 2cqw, 18px);
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
}

.p-session__speaker-body {
  min-width: 0;
}

.p-session__speaker-portrait {
  flex: none;
  width: clamp(64px, 8cqw, 92px);
  height: clamp(64px, 8cqw, 92px);
  overflow: hidden;
  border-radius: 50%;
  border: 1px solid var(--color-navy-hairline);
}

.p-session__speaker-photo {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.p-session__speaker-photo--logo {
  object-position: center;
}

.p-session__speaker-name {
  display: block;
  color: var(--color-navy);
  font-size: clamp(16px, calc(12px + .8cqw), 20px);
  line-height: 1.35;
  margin-bottom: 6px;
  font-weight: 700;
}

.p-session__speaker-name--soon {
  font-family: var(--font-accent);
  letter-spacing: .06em;
}

.p-session--break {
  --session-padding-y: 15px;
  --session-node-offset: 11px;
  align-items: center;
  background: var(--color-cream-soft);
}

.p-session--break .p-session__start {
  display: inline;
  font-size: 16px;
  color: var(--color-taupe);
  letter-spacing: 0;
}

.p-session--break .p-session__end {
  display: inline;
  color: var(--color-faded);
  margin: 0;
}

.p-session__break-label {
  margin: 0;
  font-size: 16px;
  color: var(--color-taupe);
}

.p-session__break-duration {
  color: var(--color-faded);
  font-size: 12px;
  margin-left: 10px;
}

.p-section--band {
  padding: clamp(24px, 3vw, 40px) 0;
}



/* 9.5 来場者限定特典 */
.p-bonus {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
  max-width: 980px;
  margin: 0 auto;
}

.p-bonus__image {
  display: block;
  width: 100%;
  height: auto;
  transform: rotate(-4deg);
  filter: drop-shadow(0 24px 36px rgba(10, 26, 51, .28));
}

.p-bonus__condition {
  margin: 0;
  font-size: clamp(17px, 1.6vw, 20px);
  font-weight: 700;
  line-height: 1.7;
  color: var(--color-navy);
}

.p-bonus__prize {
  margin: 14px 0 0;
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--color-navy);
}

.p-bonus__prize-name {
  display: block;
}

.p-bonus__highlight {
  color: var(--color-accent-ink);
  white-space: nowrap;
}

.p-bonus__num {
  margin: 0 .06em;
  font-family: var(--font-accent);
  font-size: 1.7em;
  letter-spacing: -.01em;
  line-height: 1;
}

/* 注意事項は普段は見出し1行だけ。押すと開く（details/summary） */
.p-bonus-notes {
  max-width: 980px;
  margin: clamp(32px, 4vw, 48px) auto 0;
  border-top: 1px solid var(--color-line);
}

.p-bonus-notes__title {
  display: flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  padding: 12px 0;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-taupe);
  cursor: pointer;
  list-style: none;
}

.p-bonus-notes__title::-webkit-details-marker {
  display: none;
}

/* 開閉の目印「∨」。開くと上向きに回る */
.p-bonus-notes__title::after {
  content: "";
  width: 6px;
  height: 6px;
  margin-top: -3px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  transition: transform .2s ease;
}

.p-bonus-notes[open] .p-bonus-notes__title::after {
  margin-top: 3px;
  transform: rotate(-135deg);
}

@media (hover: hover) {
  .p-bonus-notes__title:hover {
    color: var(--color-accent-ink);
  }
}

.p-bonus-notes[open] .p-bonus-notes__list {
  padding-bottom: 4px;
}

.p-bonus-notes__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.p-bonus-notes__item {
  position: relative;
  padding-left: 1em;
  font-size: 12px;
  line-height: 1.7;
  color: var(--color-muted);
}

.p-bonus-notes__link {
  color: var(--color-accent-ink);
  border-bottom: 1px solid currentColor;
}

.p-bonus-notes__item::before {
  content: "・";
  position: absolute;
  left: 0;
}

@media (max-width: 720px) {
  .p-bonus {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
    text-align: center;
  }

  .p-bonus__visual {
    width: min(100%, 340px);
    margin-inline: auto;
  }
}

/* 10. Sponsors */
.p-sponsor-inquiry {
  max-width: 800px;
  margin: 48px auto 0;
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1.9;
  text-align: center;
}

.p-sponsor-inquiry span {
  display: block;
}

.p-sponsor-inquiry__link {
  color: var(--color-accent-ink);
  border-bottom: 1px solid currentColor;
}

@media (max-width: 620px) {
  .p-sponsor-inquiry {
    margin-top: 32px;
    font-size: 13px;
    text-align: left;
  }
}

.p-sponsor-tier {
  margin-top: 38px;
}

.p-sponsor-tier__title {
  display: flex;
  align-items: center;
  gap: 20px;
  margin: 0 0 14px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--color-ink);
  text-align: center;
}

.p-sponsor-tier__title::before,
.p-sponsor-tier__title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--color-line-soft);
}

.p-sponsor-tier__diamond {
  width: 7px;
  height: 7px;
}

.p-sponsor-tier__diamond--platinum {
  background: var(--color-rank-platinum);
}

.p-sponsor-tier__diamond--gold {
  background: var(--color-rank-gold);
}

.p-sponsor-tier__diamond--silver {
  background: var(--color-rank-silver);
}

.p-sponsor-tier__diamond--bronze {
  background: var(--color-rank-bronze);
}

.p-sponsor-tier__diamond--media {
  background: var(--color-ink);
}

.p-sponsor-tier__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-inline: auto;
}

.p-sponsor-tier__grid--platinum {
  width: 100%;
}

.p-sponsor-tier__grid--platinum > :only-child {
  grid-column: 2;
}

.p-sponsor-tier__grid--gold {
  width: 86%;
}

.p-sponsor-tier__grid--silver {
  width: 74%;
}

.p-sponsor-tier__grid--bronze {
  width: 64%;
}

/* メディアは5枠で全幅に揃える */
.p-sponsor-tier__grid--media {
  width: 100%;
}

@media (min-width: 901px) {
  .p-sponsor-tier__grid--media {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  /* 後援はメディアと同じ枠サイズで中央に置く */
  .p-sponsor-tier__grid--support > .p-sponsor-tile:only-child {
    grid-column: 3;
  }

  /* ゴールド・ブロンズは6分割に3枠。1〜2社のときは中央に寄せる */
  .p-sponsor-tier__grid--gold,
  .p-sponsor-tier__grid--bronze {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .p-sponsor-tier__grid--gold > .p-sponsor-tile,
  .p-sponsor-tier__grid--bronze > .p-sponsor-tile {
    grid-column: span 2;
  }

  .p-sponsor-tier__grid--gold > .p-sponsor-tile:first-child:nth-last-child(2),
  .p-sponsor-tier__grid--bronze > .p-sponsor-tile:first-child:nth-last-child(2) {
    grid-column: 2 / span 2;
  }

  .p-sponsor-tier__grid--gold > .p-sponsor-tile:only-child,
  .p-sponsor-tier__grid--bronze > .p-sponsor-tile:only-child {
    grid-column: 3 / span 2;
  }
}

/* スポンサーの階層はグリッド幅で表現し、ロゴの占有率は共通にする。 */
.p-sponsor-tile {
  border: 1px solid var(--color-line-mist);
  aspect-ratio: 5 / 2;
  display: flex;
  align-items: center;
  justify-content: center;
}

.p-sponsor-tile--platinum {
  border-color: transparent;
}

.p-sponsor-tile__logo {
  max-width: var(--sponsor-logo-width, 74%);
  max-height: var(--sponsor-logo-height, 68%);
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}

/* Reserve A/5 on each side and A/10 above/below the supplied 5:2 logo canvas. */
.p-sponsor-tile__logo[src$="sponsor-sojitztech.webp"] {
  --sponsor-logo-width: 70%;
  --sponsor-logo-height: 64%;
}

/* Compensate for each asset's internal whitespace and visual weight. */
.p-sponsor-tile__logo[src$="sponsor-google-maps-platform.webp"] {
  --sponsor-logo-width: 94%;
  --sponsor-logo-height: 94%;
}

.p-sponsor-tile__logo[src$="sponsor-sbs-group.webp"] {
  --sponsor-logo-width: 82%;
  --sponsor-logo-height: 82%;
}

/* 野村不動産: 規定余白0.2WはSVGのviewBoxに内包。枠線に触れない範囲で最大化（マーク幅の最小23pxも満たす） */
.p-sponsor-tile__logo[src$="sponsor-nomura-re.svg"] {
  --sponsor-logo-width: 96%;
  --sponsor-logo-height: 96%;
}

/* 経団連: アイソレーション規定（上下1H・左右0.2W）は画像の余白に内包済み。枠いっぱいに表示して他ロゴと見た目の大きさを揃える */
.p-sponsor-tile__logo[src$="sponsor-keidanren.webp"] {
  --sponsor-logo-width: 96%;
  --sponsor-logo-height: 96%;
}

/* 11. Overview / Access */
.p-overview-list {
  position: relative;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
  gap: 0 clamp(24px, 3vw, 40px);
  margin: 0;
  padding: clamp(16px, 2.4vw, 28px) clamp(28px, 4vw, 56px);
}

.p-overview-list::before {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid var(--color-accent-line-faint);
  pointer-events: none;
}

.p-overview-list__row {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px solid var(--color-line-faint);
  align-items: baseline;
}

/* 最下段（2カラム時は末尾2項目）はパネル下端と線が重なるため消す */
.p-overview-list__row:nth-last-child(-n+2) {
  border-bottom: 0;
}

.p-overview-list__term {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-accent-ink);
  white-space: nowrap;
}

.p-overview-list__description {
  margin: 0;
  font-size: 16px;
  color: var(--color-ink);
  line-height: 1.9;
  line-break: strict;
  text-wrap: pretty;
  word-break: auto-phrase;
  overflow-wrap: break-word;
}

.p-overview-list__link {
  display: block;
  width: fit-content;
  margin-top: 4px;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent-ink);
  border-bottom: 1px solid var(--color-accent-ink-line);
}

.p-access__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: 46px;
}

.p-access__map {
  height: 340px;
  background: var(--color-sand); /* 地図の読み込み中に表示する背景色 */
  border: 1px solid var(--color-line-strong);
}

.p-access__map-embed {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.p-access__map-link {
  display: block;
  width: fit-content;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent-ink);
  border-bottom: 1px solid var(--color-accent-ink-line);
  white-space: nowrap;
}

.p-route-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}

.p-route-list__item {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--color-line-faint);
  font-size: 16px;
}

.p-route-list__line {
  font-size: 14px;
  padding: 6px 8px;
  text-align: center;
}

.p-route-list__station {
  font-weight: 700;
  color: var(--color-ink);
}

.p-route-list__exit {
  font-weight: 400;
  font-size: 14px;
  color: var(--color-muted);
  margin-left: 4px;
}

.p-route-list__time {
  font-weight: 700;
  color: var(--color-navy);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.p-route-list__time--direct {
  color: var(--color-accent-ink);
}

.p-access__title {
  font-family: var(--font-heading);
  color: var(--color-navy);
  font-size: 25px;
  margin: 0 0 12px;
  font-weight: 700;
  letter-spacing: -.005em;
}

.p-access__address {
  margin: 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-ink);
}

/* 12. Register */
.p-section--register {
  padding: clamp(48px, 6vw, 88px) 0;
}

.p-register-card {
  position: relative;
  max-width: 840px;
  margin: 0 auto;
  border: 1px solid var(--color-accent-line-strong);
  padding: clamp(32px, 4vw, 52px) clamp(16px, 4vw, 48px);
  background: var(--color-navy-veil);
}

.p-register-card::before {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid var(--color-accent-line-faint);
  pointer-events: none;
}

.p-register-card--band {
  border: 0;
  padding-block: 0;
  background: none;
}

.p-register-card--band::before {
  content: none;
}

.p-register-card__meta {
  display: grid;
  gap: 8px;
  margin-bottom: clamp(24px, 3vw, 32px);
  color: var(--color-white);
}

.p-register-card__datetime {
  display: flex;
  justify-content: center;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 18px;
  margin: 0;
  font-size: clamp(24px, 2.8vw, 30px);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.p-register-card__datetime > span {
  white-space: nowrap;
}

.p-register-card__dow {
  margin-left: 4px;
  font-size: .65em;
  letter-spacing: .12em;
}

.p-register-card__venue {
  margin: 0;
  font-size: clamp(16px, 1.8vw, 18px);
  font-weight: 500;
}

.c-button--large {
  width: min(100%, 520px);
  min-width: 0;
  min-height: 88px;
  padding: 22px 48px;
  font-size: 24px;
  letter-spacing: .04em;
}

.c-button--large .c-button__label {
  white-space: nowrap;
}

.c-button--large .c-button__note {
  font-size: .78em;
  letter-spacing: 0;
}

.c-button--large .c-button__arrow {
  right: 28px;
  width: 12px;
  height: 12px;
  border-width: 2px;
}

.c-button--large:focus-visible {
  outline: 3px solid var(--color-white);
  outline-offset: 5px;
}

.p-register-card__note {
  margin: 16px 0 0;
  font-size: 14px;
  color: rgba(255, 255, 255, .8);
}

@media (max-width: 620px) {
  .c-button--large {
    min-height: 76px;
    padding: 20px 36px;
    font-size: clamp(18px, 5vw, 22px);
    letter-spacing: .02em;
  }

  .c-button--large .c-button__arrow {
    right: 18px;
    width: 10px;
    height: 10px;
  }
}

/* 12.5 参加登録フォーム（EventHub 埋め込みフォーム）
   ふだんはアクセスの下（#entry）に置き、各CTAはここへ移動する。
   画面幅1200px以上では画面右端に縦いっぱいで固定し、LP本体はその左側に収める（CTAは出さない） */
.p-regform {
  max-width: 560px;
  margin: 0 auto;
  padding: 28px 24px 24px;
  background: var(--color-white);
  border-top: 4px solid var(--color-accent);
  border-radius: 4px;
  box-shadow: var(--shadow-panel);
}

/* フォーム内の見出しは右端に出すときだけ使う（下に置くときはセクション名「お申込み」を出す） */
.p-regform__head {
  display: none;
}

@media (min-width: 1200px) {
  .has-regform {
    --regform-width: 380px;
    padding-right: var(--regform-width);
  }

  .has-regform .l-header__inner {
    width: 100%;
  }

  /* 右にフォームが常に見えているので、登録ボタン類は出さない */
  .has-regform .c-button--header,
  .has-regform .p-hero__action .c-button--hero,
  .has-regform .p-section--band {
    display: none;
  }

  .has-regform .p-entry {
    padding: 0;
    border-top: 0;
  }

  .has-regform .p-entry__title {
    display: none;
  }

  .has-regform .p-regform__head {
    display: block;
  }

  .has-regform .p-regform {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 35;
    width: var(--regform-width);
    max-width: none;
    margin: 0;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 22px 24px 20px;
    border-top: 0;
    border-left: 1px solid var(--color-line);
    border-radius: 0;
    box-shadow: -12px 0 32px rgba(0, 13, 32, .08);
  }

  .has-regform .p-regform::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--color-accent);
  }
}
.p-regform__head {
  margin: 0 0 10px;
  text-align: center;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-navy);
}

/* EventHub 公式の埋め込みフォームの見た目を LP に合わせる（公式手順どおり #eh-root 配下を上書き）
   送信ボタンまで画面の高さに収まるよう、短い項目は2列に並べて余白を詰める */
.p-regform #eh-root {
  color: var(--color-ink);
  font-family: var(--font-body);
}

.p-regform #eh-root form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 12px;
  padding: 0;
  max-width: none;
}

.p-regform #eh-root form > * {
  grid-column: 1 / -1;
}

/* 2列にする項目：姓・名、業種・部署、役職・電話番号 */
.p-regform #eh-root form > fieldset:not(#email):not(#affiliation) {
  grid-column: auto;
}

.p-regform #eh-root fieldset:not(.hide) {
  padding: 4px 0;
}

.p-regform #eh-root fieldset > div.heading {
  margin-bottom: 3px;
}

.p-regform #eh-root legend .title {
  font-size: 12px;
  font-weight: 700;
}

/* 必須の印は main.js で「必須」から「*」に置き換える */
.p-regform #eh-root .required {
  margin-left: 2px;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  color: var(--color-accent-ink);
}

.p-regform #eh-root .max-length {
  display: none;
}

/* 確認用のメールアドレス欄は main.js で自動入力するので出さない */
.p-regform #eh-root #confirmationEmail {
  display: none;
}

.p-regform #eh-root .description {
  margin-top: 3px;
  font-size: 10px;
  line-height: 1.45;
}

.p-regform #eh-root input[type="text"],
.p-regform #eh-root select {
  height: 36px;
  padding: 6px 10px;
  font-size: 13px;
  background: var(--color-white);
  border-color: var(--color-line-strong);
  border-radius: 3px;
}

.p-regform #eh-root .eh-terms {
  margin-top: 6px;
  padding: 0;
  font-size: 10px;
  line-height: 1.5;
  color: var(--color-muted);
}

.p-regform #eh-root .eh-terms > pre {
  margin: 0;
}

.p-regform #eh-root .terms,
.p-regform #eh-root .terms-confirmation {
  padding: 0;
}

.p-regform #eh-root .terms > pre {
  box-sizing: border-box;
  width: 100%;
  height: 80px;
  margin: 8px 0;
  padding: 6px 8px;
  font-size: 10px;
  line-height: 1.5;
}

/* イベント参加規約のチェックは main.js で EventHub のチェックと一本化して隠す */
.p-regform #eh-root .terms-confirmation > label[hidden] {
  display: none;
}

.p-regform #eh-root .terms-confirmation > label > p {
  margin: 3px 0;
  font-size: 12px;
  line-height: 1.4;
}

.p-regform #eh-root button {
  margin-top: 8px;
  width: 100%;
  height: 46px;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-on-cta);
  background: var(--color-cta);
  border-radius: 3px;
}

@media (hover: hover) {
  .p-regform #eh-root button:not(:disabled):hover {
    background: var(--color-cta-hover);
  }
}

/* スマホは1列 */
@media (max-width: 620px) {
  .p-regform {
    padding: 24px 16px 20px;
  }

  .p-regform #eh-root form > fieldset:not(#email):not(#affiliation) {
    grid-column: 1 / -1;
  }

  .p-regform #eh-root input[type="text"],
  .p-regform #eh-root select {
    height: 44px;
    font-size: 16px;
  }

  .p-regform #eh-root button {
    height: 52px;
  }
}

/* 高さの低い画面（1366×768 のノートPC など）では、さらに詰めて送信ボタンまで収める */
@media (min-width: 1200px) and (max-height: 760px) {
  .has-regform .p-regform {
    padding: 12px 24px 10px;
  }

  .p-regform__head {
    margin-bottom: 6px;
    font-size: 17px;
  }

  .p-regform #eh-root fieldset:not(.hide) {
    padding: 2px 0;
  }

  .p-regform #eh-root .terms-confirmation > label > p {
    margin: 2px 0;
  }

  .p-regform #eh-root input[type="text"],
  .p-regform #eh-root select {
    height: 32px;
    padding: 4px 10px;
  }

  /* 電話番号の補足は入力例（プレースホルダー）と重なるので省く */
  .p-regform #eh-root fieldset[data-type="tel"] .description {
    display: none;
  }

  .p-regform #eh-root .terms > pre {
    height: 64px;
    margin: 6px 0;
    padding: 4px 8px;
  }

  .p-regform #eh-root button {
    margin-top: 6px;
    height: 40px;
  }
}
/* 12.6 サンクスページ */
.p-thanks__card {
  max-width: 820px;
  margin: 0 auto;
  padding: clamp(40px, 6vw, 64px) clamp(20px, 5vw, 56px);
  text-align: center;
  border-top: 4px solid var(--color-accent);
}

.p-thanks__icon {
  display: block;
  width: 56px;
  height: 56px;
  margin: 0 auto;
  color: var(--color-navy);
}

.p-thanks__title {
  margin: 20px 0 0;
  font-family: var(--font-heading);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  color: var(--color-navy);
}

.p-thanks__note {
  margin: 24px 0 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--color-muted);
  text-wrap: pretty;
  word-break: auto-phrase;
}

.p-thanks__link {
  color: var(--color-accent-ink);
  border-bottom: 1px solid currentColor;
}

.p-thanks__action {
  display: flex;
  justify-content: center;
  margin-top: 36px;
}

@media (max-width: 620px) {
  .p-thanks__note {
    text-align: left;
  }
}
/* 13. Footer */
.l-footer {
  background: var(--color-navy-deep);
  color: var(--color-white);
  border-top: 1px solid var(--color-accent-line);
}

.l-footer__inner {
  max-width: var(--container-wide);
  width: 92vw;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  padding-top: 40px;
  padding-bottom: 40px;
  font-size: 14px;
}

.l-footer__meta {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}

.l-footer__title {
  font-weight: 700;
  letter-spacing: .02em;
}

.l-footer__nav {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}

.l-footer__link {
  color: rgba(255, 255, 255, .78);
  border-bottom: 1px solid rgba(255, 255, 255, .25);
}

@media (hover: hover) {
  .l-footer__link:hover {
    color: var(--color-accent-hi);
    border-bottom-color: var(--color-accent-hi);
  }
}

.l-footer__copyright {
  margin: 0;
  font-size: 12px;
  color: rgba(255, 255, 255, .55);
}

/* 14. Media queries */
/* ナビ項目が1行に収まらない幅からハンバーガーメニューに切り替える */
@media (max-width: 940px) {
  .l-header__inner,
  .l-footer__inner {
    width: 100%;
  }

  .c-button--mobile-header {
    display: inline-flex;
    flex: 0 0 auto;
    padding: 9px 30px 9px 14px;
    font-size: 13px;
    line-height: 1.4;
    white-space: nowrap;
  }

  .c-button--mobile-header .c-button__arrow {
    right: 12px;
    width: 7px;
    height: 7px;
  }

  .l-header__menu-button {
    display: flex;
    flex: 0 0 auto;
  }

  .c-global-nav {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 20px 20px;
    background: var(--color-header-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-accent-line);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    pointer-events: none;
    transition: opacity .25s ease, transform .25s ease, visibility 0s linear .25s;
  }

  .is-open .c-global-nav {
    opacity: 1;
    visibility: visible;
    transform: none;
    pointer-events: auto;
    transition: opacity .25s ease, transform .25s ease;
  }

  .c-global-nav__link {
    padding: 13px 4px;
    font-size: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, .12);
  }

  .c-button--header {
    display: none;
  }
}

@media (max-width: 900px) {
  .p-speaker-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .p-session {
    --session-padding-y: 24px;
    grid-template-columns: 1fr;
    gap: 0;
    padding: var(--session-padding-y) 0;
  }

  .p-session__time {
    display: flex;
    align-items: baseline;
    gap: 12px;
    padding-top: 0;
    margin-bottom: 12px;
  }

  .p-session__end,
  .p-session__duration {
    margin-top: 0;
  }

  .p-session--break .p-session__time {
    margin-bottom: 0;
  }

  .p-sponsor-tier__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .p-sponsor-tier__grid > .p-sponsor-tile {
    grid-column: span 2;
  }

  .p-sponsor-tier__grid--bronze > .p-sponsor-tile:last-child:nth-child(odd),
  .p-sponsor-tier__grid--media > .p-sponsor-tile:last-child:nth-child(odd) {
    grid-column: 2 / span 2;
  }

}

@media (max-width: 720px) {
  .p-overview-list__row:nth-last-child(2) {
    border-bottom: 1px solid var(--color-line-mist);
  }

  .p-overview-list__row {
    gap: 10px;
  }

  .p-overview-list__description {
    line-height: 1.6;
  }

  .p-message__quote {
    font-size: 31px;
  }

  .p-speaker-card__medallion--photo {
    width: 110px;
    height: 110px;
  }


  .p-access__title {
    font-size: 20px;
  }

  .p-session__main {
    --session-title-size: clamp(20px, 3.4vw, 24px);
  }

  .p-session__subtitle {
    display: block;
    margin-left: 0;
    margin-top: 6px;
    font-size: calc(var(--session-title-size) * .7);
  }

}

@media (max-width: 620px) {
  /* 横スクロール。次の写真が少し覗くことでスクロールできると分かるようにする */
  .p-photo-strip {
    grid-template-columns: none;
    grid-auto-flow: column;
    grid-auto-columns: 84%;
    gap: 8px;
    margin-inline: calc(-1 * var(--container-pad));
    padding-inline: var(--container-pad);
    scroll-padding-inline: var(--container-pad);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    overscroll-behavior-x: contain;
    scrollbar-width: none;
  }

  .p-photo-strip::-webkit-scrollbar {
    display: none;
  }

  .p-photo-strip__item {
    scroll-snap-align: start;
  }

  /* 画面外の写真は横スクロールで入ってくるので、フェードインさせずに最初から表示 */
  .is-reveal-ready .p-photo-strip__item.js-reveal {
    opacity: 1;
    transform: none;
  }


  /* スマホは縦長の画像を全幅で出すので、左右のぼかしは不要 */
  .p-hero__visual::before {
    content: none;
  }

  .p-hero__picture {
    width: 100%;
  }

  .p-hero__action {
    padding: 20px var(--container-pad) 8px;
  }

  .c-button--hero {
    width: 100%;
    min-height: 60px;
    font-size: 17px;
  }

  .p-session__speaker-name {
    font-size: 16px;
  }

  .p-session--break {
    padding-right: 20px;
    padding-left: 20px;
  }

  .p-overview-list__row {
    grid-template-columns: 1fr;
    gap: 4px;
    align-items: start;
  }

  .p-overview-list__row:nth-child(1) { order: 1; }
  .p-overview-list__row:nth-child(2) { order: 4; }
  .p-overview-list__row:nth-child(3) { order: 2; }
  .p-overview-list__row:nth-child(4) { order: 5; }
  .p-overview-list__row:nth-child(5) { order: 3; }
  .p-overview-list__row:nth-child(6) { order: 6; }

  .p-access__map {
    height: 280px;
  }

  .p-session__content {
    grid-template-columns: 1fr;
  }

  .p-session__speakers {
    flex-direction: column;
    gap: 18px;
    margin-top: 0;
  }

  .p-session__speaker {
    max-width: none;
  }

  .p-session__speaker-portrait {
    width: 64px;
    height: 64px;
  }

  .p-timetable {
    padding-left: 0;
  }

  .p-timetable::before,
  .p-session::before {
    content: none;
  }

  .p-timetable__date-row {
    margin-left: 0;
  }

  .p-route-list__item {
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 10px;
    font-size: 14px;
  }

  .p-route-list__line {
    width: 120px;
    padding: 6px 4px;
    font-size: 12px;
    line-height: 1.4;
  }

  .p-speaker-grid {
    gap: 10px;
  }

  .p-speaker-card {
    padding: 20px 10px 16px;
  }

  .p-speaker-card__medallion--photo {
    width: 96px;
    height: 96px;
    margin-bottom: 14px;
  }

  .p-speaker-card__name {
    font-size: 17px;
  }

  .p-speaker-card__divider {
    margin: 8px auto 10px;
  }

  .p-speaker-card__role {
    font-size: 12px;
    line-height: 1.5;
  }

  .p-speaker-card__profile-button {
    margin-top: 12px;
    font-size: 13px;
  }

  .p-sponsor-tier__title {
    gap: 10px;
    font-size: 18px;
  }

  .p-sponsor-tier__grid {
    width: 100%;
    gap: 10px;
  }

  .p-sponsor-tile__logo {
    max-width: var(--sponsor-logo-width, 88%);
    max-height: var(--sponsor-logo-height, 78%);
  }

  /* 上位ティアは1枠で全幅。Contract One の最小幅162px(規定)を確保 */
  .p-sponsor-tier__grid--platinum > .p-sponsor-tile,
  .p-sponsor-tier__grid--gold > .p-sponsor-tile {
    grid-column: span 4;
  }




}

/* 15. Scroll reveal */

.p-message__quote-line {
  display: block;
  overflow: hidden;
}

.p-message__quote-text {
  display: block;
}

.is-reveal-ready .p-message__quote .p-message__quote-text {
  transform: translate3d(0, 112%, 0);
  transition: transform .8s cubic-bezier(.22, 1, .36, 1);
}

.is-reveal-ready .p-message__quote-line:nth-child(2) .p-message__quote-text {
  transition-delay: .12s;
}

.is-reveal-ready .p-message__quote-line:nth-child(3) .p-message__quote-text {
  transition-delay: .24s;
}

.is-reveal-ready .p-message__quote-line:nth-child(4) .p-message__quote-text {
  transition-delay: .36s;
}

.is-reveal-ready .p-message__quote.is-visible .p-message__quote-text {
  transform: none;
}

.is-reveal-ready .js-reveal {
  opacity: 0;
  transform: translate3d(0, 24px, 0);
  transition:
    opacity .72s cubic-bezier(.22, 1, .36, 1),
    transform .72s cubic-bezier(.22, 1, .36, 1);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}

.is-reveal-ready .js-reveal.is-visible {
  opacity: 1;
  transform: none;
  will-change: auto;
}

@media (max-width: 720px) {
  .is-reveal-ready .js-reveal {
    --reveal-delay: 0ms !important;
    transform: translate3d(0, 16px, 0);
    transition-duration: .52s;
  }

  .is-reveal-ready .js-reveal.is-visible {
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  ::before,
  ::after {
    transition: none !important;
  }

  html {
    scroll-behavior: auto;
  }

  .is-reveal-ready .js-reveal {
    opacity: 1;
    transform: none;
  }

  .is-reveal-ready .p-message__quote .p-message__quote-text {
    transform: none;
  }

  .p-hero__scroll::before {
    animation: none;
  }
}