@charset "UTF-8";

/* =================================================================
   Reset (ress.css v1.2.2 ベース・必要部分のみ)
   ================================================================= */
html {
  box-sizing: border-box;
  overflow-y: scroll;
  -webkit-text-size-adjust: none;
}
*, ::before, ::after {
  background-repeat: no-repeat;
  box-sizing: inherit;
}
::before, ::after {
  text-decoration: inherit;
  vertical-align: inherit;
}
* {
  padding: 0;
  margin: 0;
}
h1, h2, h3, h4, h5, h6 {
  font-size: 100%;
  font-weight: normal;
}
li { list-style: none; }
a {
  background-color: transparent;
  -webkit-text-decoration-skip: objects;
}
a:active, a:hover { outline-width: 0; }
b, strong { font-weight: bolder; }
img {
  border-style: none;
  max-width: 100%;
  height: auto;
  vertical-align: bottom;
}
audio:not([controls]) { display: none; height: 0; }
article, aside, details, figcaption, figure,
footer, header, main, menu, nav, section, summary {
  display: block;
}
small { font-size: 80%; }
[hidden], template { display: none; }
sub, sup { font-size: 75%; line-height: 0; position: relative; vertical-align: baseline; }
sub { bottom: -0.25em; }
sup { top: -0.5em; }
button, [type="button"], [type="reset"], [type="submit"], [role="button"] { cursor: pointer; }
[disabled] { cursor: default; }
button, input, select, textarea { background-color: transparent; border-style: none; color: inherit; font: inherit; }
textarea { overflow: auto; resize: vertical; }
select { -moz-appearance: none; -webkit-appearance: none; }
::selection { background-color: #b3d4fc; color: #000; text-shadow: none; }

/* =================================================================
   共通・フォント
   ================================================================= */
@import url("https://fonts.googleapis.com/css?family=Roboto:300,400,700");

html, body {
  max-width: 100%;
  overflow-x: hidden;
}

html, h1, h2, h3, h4, h5, h6, strong, em, body {
  font-family: 'Helvetica Neue', 'Helvetica', -apple-system, BlinkMacSystemFont,
    Roboto, 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', 'Arial',
    'Yu Gothic', 'Meiryo', sans-serif;
  font-feature-settings: "pkna" 1;
  font-size: 62.5%;
}

body {
  font-size: 1.6em;
}

h1, h2, h3, h4, h5, h6, strong, em {
  font-weight: 700;
}

iframe {
  max-width: 100%;
  width: 100%;
}

.container {
  margin: 0;
  padding: 0;
}

/* =================================================================
   ヘッダー
   ================================================================= */
.header {
  background:
    linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)),
    url(../images/main-visual.jpeg) no-repeat center center;
  background-size: cover;
  display: flex;
  align-items: center;
  padding: 3rem 0;
  text-align: center;
  font-weight: bold;
  position: relative;
}

.header__top-badge {
  text-align: center;
  margin-bottom: 20px;
}

.badge-free {
  display: inline-block;
  background: linear-gradient(135deg, #1e3c72, #2a5298); /* 青系統のグラデーション */
  color: #ffffff !important;
  text-shadow: none !important;
  font-size: 2.2rem;
  font-weight: bold;
  padding: 8px 30px;
  border-radius: 50px;
  box-shadow: 0 4px 15px rgba(42, 82, 152, 0.4); /* 青系統の影 */
  animation: pulse-badge 2s infinite;
  letter-spacing: 0.05em;
  text-decoration: none; /* リンク下線消し */
}

@keyframes pulse-badge {
  0% { transform: scale(1); box-shadow: 0 4px 15px rgba(42, 82, 152, 0.4); }
  50% { transform: scale(1.05); box-shadow: 0 6px 20px rgba(42, 82, 152, 0.6); }
  100% { transform: scale(1); box-shadow: 0 4px 15px rgba(42, 82, 152, 0.4); }
}

@media (max-width: 768px) {
  .badge-free {
    font-size: 1.4rem;
    padding: 6px 20px;
  }
}

@media (max-width: 768px) {
  .header {
    background-image:
      linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)),
      url(../images/main-response.jpg);
    background-position: center center;
    background-size: cover;
    padding: 1.5rem 0 2rem;
  }
}

.header__inner {
  width: 100%;
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 25px;
}

.header__platform {
  font-size: clamp(1.6rem, 2.4vw, 3.0rem);
  color: #fff;
  font-family: 'Hiragino Mincho ProN', 'Yu Mincho', 'MS PMincho', serif;
  text-align: center;
  border: 1px solid #fff;
  width: fit-content;
  margin: 0 auto 1.5rem;
  padding: 0.15em 0.4em;
  white-space: nowrap;
}

.header__title {
  color: #fdfdfd;
  font-family: 'Hiragino Mincho ProN', 'Yu Mincho', 'MS PMincho', serif;
  line-height: 1.4;
  text-align: center;
  margin-bottom: 2rem;
  text-shadow: 0 0 10px #888;
}

.header__organizer {
  display: block;
  margin-bottom: 4px;
  font-size: clamp(1.4rem, 2.51vw, 3.0rem);
  text-align: center;
  white-space: nowrap;
}

.header__event {
  display: block;
  text-align: center;
  font-size: clamp(2.4rem, 3.59vw, 4.6rem);
  text-shadow: 0 0 10px rgba(0,0,0,0.8), 0 2px 4px rgba(0,0,0,0.5);
  margin-bottom: 2rem;
  white-space: nowrap;
}

.header__catchcopy {
  font-size: clamp(5.0rem, 9.04vw, 12.0rem);
  font-weight: bold;
  font-family: sans-serif;
  white-space: nowrap;
}

.header__subtitle {
  font-size: clamp(5.0rem, 9.04vw, 12.0rem);
  font-family: sans-serif;
  white-space: nowrap;
}

.header__hybrid {
  display: block;
  font-size: clamp(2.4rem, 4.31vw, 5.6rem);
  font-weight: bold;
  margin-top: 2rem;
  margin-bottom: 0.5rem;
  letter-spacing: .1em;
  font-family: 'Hiragino Mincho ProN', 'Yu Mincho', 'MS PMincho', serif;
  white-space: nowrap;
}

.header__info {
  margin-top: 0.5rem;
  font-size: 1.8rem;
  text-align: center;
  color: #fff;
  font-family: 'Hiragino Mincho ProN', 'Yu Mincho', 'MS PMincho', serif;
}

.header__date {
  padding: 3px 0;
  font-size: clamp(2.4rem, 4.04vw, 5.2rem);
  text-shadow: 0 0 10px rgba(7,13,31,0.95), 0 0 25px rgba(7,13,31,0.8);
  white-space: nowrap;
}

.header__venue {
  padding: 3px 0;
  font-size: clamp(1.8rem, 2.86vw, 3.6rem);
  text-shadow: 0 0 10px rgba(7,13,31,0.95), 0 0 25px rgba(7,13,31,0.8);
  margin-bottom: 20px;
  white-space: nowrap;
}

.header__capacity-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 15px;
  font-size: 3rem;
  margin-bottom: 26px;
}

.header__capacity {
  text-shadow: 0 0 10px rgba(7,13,31,0.95), 0 0 25px rgba(7,13,31,0.8);
}

@keyframes glow-pulse {
  0%, 100% {
    box-shadow: 0 0 6px rgba(255,255,255,0.6), 0 0 14px rgba(255,255,255,0.3);
  }
  50% {
    box-shadow: 0 0 18px rgba(255,255,255,1), 0 0 40px rgba(255,255,255,0.9), 0 0 70px rgba(255,255,255,0.5);
  }
}

.header__free {
  display: inline-block;
  border: 2px solid #fff;
  padding: 0.15em 0.4em;
  font-weight: bold;
  font-size: clamp(1.4rem, 2.18vw, 3.0rem);
  font-family: 'Hiragino Kaku Gothic ProN', 'Yu Gothic', 'Meiryo', sans-serif;
  color: #fff;
  text-shadow: 0 0 10px rgba(7,13,31,0.95), 0 0 25px rgba(7,13,31,0.8);
  animation: glow-pulse 1.8s ease-in-out infinite;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.25s, color 0.25s;
  white-space: nowrap;
}

.header__free:hover,
.header__free:focus {
  background-color: #fff;
  color: #1a365d;
  text-shadow: none;
}

.header__buttons {
  margin-top: 3rem;
  display: flex;
  flex-direction: row;
  gap: 16px;
  align-items: center;
  justify-content: center;
}

.header__p {
  width: auto;
  max-width: none;
  margin-bottom: 0;
}

.header__p .btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 192px;
  height: 144px;
  padding: 0.4em;
  line-height: 1.5;
  font-size: 2.53rem;
  white-space: normal;
  text-align: center;
  background-color: transparent;
  font-weight: bold;
  color: #fdfdfd;
  border: 3px solid #fff;
  text-decoration: none;
  position: relative;
  z-index: 2;
  border-radius: 2px;
  box-sizing: border-box;
  transition: all 0.5s;
}

.header__p .btn::before,
.header__p .btn::after {
  position: absolute;
  z-index: -1;
  display: block;
  content: "";
  left: 0;
  width: 100%;
  height: 50%;
  background-color: rgba(50,50,50,0.6);
  box-sizing: border-box;
  transition: all 0.5s;
}
.header__p .btn::before { top: 0; }
.header__p .btn::after  { bottom: 0; }
.header__p .btn:hover {
  background-color: #fdfdfd;
  color: #222;
}
.header__p .btn:hover::before,
.header__p .btn:hover::after {
  height: 0;
}

/* 下矢印アニメーション */
.header__arrow {
  position: relative;
  display: block;
  width: 100%;
  height: 60px; /* 矢印が表示される高さを確保 */
  margin-top: 30px;
}
.header__arrow span {
  position: absolute;
  top: 0;
  left: 50%;
  width: 28px;
  height: 28px;
  margin-left: -14px;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(-45deg);
  animation: sdb 2s infinite;
  opacity: 0;
  box-sizing: border-box;
}
.header__arrow span:nth-of-type(1) { animation-delay: 0s; }
.header__arrow span:nth-of-type(2) { top: 16px; animation-delay: 0.15s; }
.header__arrow span:nth-of-type(3) { top: 32px; animation-delay: 0.3s; }

@keyframes sdb {
  0%   { opacity: 0; }
  50%  { opacity: 1; }
  100% { opacity: 0; }
}

/* =================================================================
   ご挨拶セクション
   ================================================================= */
.sec--top-intro {
  padding: 60px 25px 30px;
  max-width: 1300px;
  margin: 0 auto;
  font-family: 'Hiragino Mincho ProN', 'Yu Mincho', 'MS PMincho', serif;
}

.top-intro__title {
  font-size: 32px;
  font-weight: bold;
  color: #1a365d;
  text-align: center;
  margin-bottom: 40px;
  line-height: 1.6;
}

.top-intro__container {
  display: flex;
  flex-direction: column;
  gap: 40px;
  align-items: center;
  margin-bottom: 40px;
}

.top-intro__content {
  font-size: 3rem;
  line-height: 1.8;
  color: #2d3748;
}

.top-intro__content p {
  margin-bottom: 1.5em;
}

.top-intro__text {
  font-size: 3rem;
  line-height: 1.8;
}

.top-intro__signature {
  text-align: right;
  font-weight: bold;
  margin-top: 3rem;
  font-size: 3rem;
}

.past-seminars__title {
  font-size: 32px;
  font-weight: bold;
  color: #1a365d;
  text-align: center;
  margin-bottom: 40px;
  line-height: 1.6;
}

/* =================================================================
   過去のフォーラム（pastSeminars）
   ================================================================= */
.sec--past-seminars {
  padding: 0 25px;
  max-width: 100%;
  width: 100%;
  margin-left: 0;
  margin-right: 0;
}

.past-seminars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 60px;
  max-width: 1300px;
  margin: 25px auto;
  padding: 40px 30px;
  align-items: start;
}

.past-seminars-grid a {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  color: #000;
}

.past-seminars-grid a > .seminar-title     { order: 1; }
.past-seminars-grid a > .seminar-date      { order: 2; }
.past-seminars-grid a > img                { order: 3; }
.past-seminars-grid a > .seminar-speakers-label { order: 4; }
.past-seminars-grid a > .seminar-speakers  { order: 5; }

.past-seminars-grid img {
  width: 100%;
  max-width: 400px;
  aspect-ratio: 325 / 439;
  height: auto;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.seminar-vol {
  display: inline-block;
  background: linear-gradient(90deg, #3a7bd5, #1a4fa0);
  color: #fff;
  font-size: clamp(13px, 1.7vw, 22px);
  font-weight: bold;
  letter-spacing: 0.1em;
  padding: 4px 16px;
  border-radius: 4px;
  margin-bottom: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.seminar-date {
  font-size: clamp(11px, 1.25vw, 16px);
  color: #000;
  margin-bottom: 10px;
  font-weight: 500;
}

.seminar-event-title {
  font-size: clamp(13px, 1.85vw, 24px);
  font-weight: bold;
  color: #000;
  text-align: center;
  line-height: 1.5;
  margin-bottom: 20px;
  word-break: keep-all;
  overflow-wrap: break-word;
}

.seminar-speakers-label {
  margin-top: 15px;
  font-size: 22px;
  font-weight: bold;
  color: #000;
  text-align: center;
  margin-bottom: 10px;
}

.seminar-speakers {
  font-size: 20px;
  color: #000;
  line-height: 1.6;
  word-break: keep-all;
  overflow-wrap: break-word;
  text-align: center;
  padding: 0 10px;
}

/* 過去セミナー：肩書（...の部分）を小さく、改行制御 */
.seminar-speakers__title {
  font-size: 0.75em;
  font-weight: normal;
  color: #555;
  white-space: nowrap;
  display: inline-block;
}

.digest-info {
  text-align: center;
  margin-bottom: 20px;
  font-size: 2.5rem;
}

/* =================================================================
   登壇者（speakers）
   ================================================================= */
.sec--speakers {
  padding: 0 25px;
  max-width: 100%;
  width: 100%;
  margin-left: 0;
  margin-right: 0;
}

.speakers-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 25px;
}

.speaker-card {
  text-align: center;
}

.speaker-card__img-wrapper {
  padding: 10px;
  border-radius: 8px;
  margin-bottom: 15px;
}

.speaker-card img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.speaker-card h3 {
  font-size: 22px;
  font-weight: bold;
  margin: 10px 0 5px;
  color: #333;
}

.speaker-card p {
  font-size: 14px;
  color: #333;
  margin: 0;
  line-height: 1.4;
  word-break: keep-all;
  overflow-wrap: break-word;
  font-weight: bold;
}

/* =================================================================
   開催概要（outline）
   ================================================================= */
h2.sec__title.outline-heading {
  font-size: 32px !important;
}

.outline {
  width: 100%;
  background-image: url(../images/bg_build@2x.jpg);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  color: #fdfdfd;
}

.outline__filter {
  width: 100%;
  background: rgba(0,2,46,0.6);
}

.outline__menu {
  max-width: 1300px;
  padding: 3% 40px;
  margin: 0 auto;
}

.outline__title span {
  display: block;
  font-size: 32px;
  font-weight: bold;
  color: #fff;
  text-align: center;
  margin-bottom: 40px;
  line-height: 1.6;
}

.outline__split {
  display: flex;
  align-items: flex-start;
  gap: 40px;
  justify-content: center;
}

.outline__list .outline__item {
  margin-bottom: 10px;
  font-size: 2rem;
  font-weight: normal;
}

.outline__list .outline__item a {
  color: #fdfdfd;
  text-decoration: none;
}

/* Google Map */
.googleMap {
  text-align: center;
  margin: 0 0 20px 0;
}

.googleMap__data {
  width: 100%;
  height: 400px;
  border: none;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.googleMap__caption {
  margin-top: 10px;
  font-size: 14px;
}

.googleMap__caption a {
  color: #fdfdfd;
  text-decoration: none;
}

.googleMap__caption a:hover {
  text-decoration: underline;
}

/* =================================================================
   プログラム（タイムテーブル）
   ================================================================= */
.sec--program-new {
  padding: 80px 25px;
  margin-bottom: 0;
}

.program-new__header {
  text-align: center;
  margin-bottom: 40px;
}

.program-new__title {
  font-size: 20px;
  font-weight: bold;
  color: #333;
}

.program-new__subtitle {
  font-size: 32px;
  font-weight: bold;
  color: #1a365d;
  text-align: center;
  margin-top: 8px;
  margin-bottom: 40px;
  line-height: 1.6;
}

.program-new__container {
  background: #fff;
  padding: 50px;
  max-width: 1300px;
  margin: 0 auto;
  border: 2px solid #000;
}

.program-new__box-title {
  font-size: 24px;
  font-weight: bold;
  text-align: center;
  margin-bottom: 40px;
  padding: 12px 24px;
  background: #000;
  color: #fff;
  display: inline-block;
}

.program-new__list {
  list-style: none;
  padding: 0;
}

.program-new__item {
  display: flex;
  border-bottom: 1px solid #e9ecef;
  padding: 20px 0;
}

.program-new__item:last-child {
  border-bottom: none;
}

.program-new__time {
  flex: 0 0 140px;
  font-weight: bold;
  font-size: 22px;
}

.program-new__content {
  flex: 1;
}

.program-new__content-title {
  font-weight: bold;
  font-size: 22px;
  margin-bottom: 8px;
}

.program-new__content-presenter {
  font-size: 24px;
  color: #333;
  line-height: 1.6;
}

.program-new__footer-img {
  width: 50%;
  margin-top: -60px;
  border-radius: 8px;
  display: block;
  margin-left: auto;
  margin-right: 0;
  position: relative;
  z-index: 1;
}

.program-new__notice {
  text-align: right;
  margin-top: 20px;
  font-size: 16px;
  color: #555;
}

/* =================================================================
   申し込みボタン（contact）
   ================================================================= */
.contact {
  text-align: center;
}

.contact__btn .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 2.4rem;
  padding: 1.2em 2em;
  width: 100%;
  max-width: 500px;
  margin: 16px auto 65px;
  color: #fdfdfd;
  background-color: #323232;
  border: 3px solid #323232;
  text-decoration: none;
  text-align: center;
  position: relative;
  z-index: 2;
  border-radius: 2px;
  box-sizing: border-box;
  transition: all 0.5s;
}

.contact__btn .btn::before,
.contact__btn .btn::after {
  position: absolute;
  z-index: -1;
  display: block;
  content: "";
  left: 0;
  width: 100%;
  height: 50%;
  background-color: #323232;
  box-sizing: border-box;
  transition: all 0.5s;
}
.contact__btn .btn::before { top: 0; }
.contact__btn .btn::after  { bottom: 0; }
.contact__btn .btn:hover {
  background-color: #fdfdfd;
  border-color: #323232;
  color: #323232;
}
.contact__btn .btn:hover::before,
.contact__btn .btn:hover::after {
  height: 0;
}

/* =================================================================
   フッター
   ================================================================= */
.footer {
  background-color: #222;
  color: #fdfdfd;
  text-align: center;
  font-size: 1.8rem;
  padding: 24px 0 114px;
}

@media (max-width: 768px) {
  .footer {
    padding: 24px 0 200px;
  }
}

/* ページトップボタン */
.btTop {
  display: block;
  width: 50px;
  height: 50px;
  color: #fdfdfd;
  background-color: #222;
  position: fixed;
  right: 16px;
  bottom: 10px;
  text-align: center;
  padding-top: 2px;
  z-index: 100;
}
.btTop span {
  width: 0;
  height: 0;
  display: block;
  margin: 18px auto 0;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-bottom: 10px solid #fdfdfd;
}

/* =================================================================
   共通 .sec
   ================================================================= */
.sec {
  max-width: 1300px;
  margin: 0 auto 130px;
}

.sec--program-new {
  margin-bottom: 16px;
}

.sec--top-intro {
  margin-bottom: 48px;
}

.sec__title {
  font-size: 32px;
  font-weight: bold;
  color: #1a365d;
  text-align: center;
  line-height: 1.6;
  margin-bottom: 40px;
}

/* =================================================================
   レスポンシブ
   ================================================================= */

/* タブレット */
@media (max-width: 1024px) {
  .speakers-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* モバイル */
@media (max-width: 768px) {
  .header__inner {
    padding: 0 15px;
  }

  .header__organizer {
    display: block;
    text-align: center;
    margin: 0 auto 8px;
    font-size: clamp(0.7rem, 2.5vw, 1.05rem);
    white-space: nowrap;
  }

  .header__platform {
    font-size: clamp(0.8rem, 3.0vw, 1.25rem);
    white-space: nowrap;
  }

  .header__hybrid {
    font-size: clamp(1.1rem, 4.0vw, 1.68rem);
    white-space: nowrap;
  }

  .header__info {
    font-size: clamp(0.7rem, 2.2vw, 0.94rem);
  }

  .header__date {
    font-size: clamp(1.1rem, 4.0vw, 1.68rem);
    white-space: nowrap;
  }

  .header__venue {
    font-size: clamp(0.9rem, 3.1vw, 1.30rem);
    white-space: nowrap;
  }

  .header__buttons {
    flex-wrap: nowrap;
    justify-content: center;
    gap: 8px;
  }

  .header__p {
    flex: 1 1 0;
    max-width: 110px;
  }

  .header__p .btn {
    width: 100%;
    min-width: 0;
    height: 72px;
    font-size: 1.54rem;
    padding: 0;
    box-sizing: border-box;
  }

  .sec--top-intro {
    padding: 40px 20px;
  }

  .sec__title {
    font-size: 24px !important;
    line-height: 1.6 !important;
    margin-bottom: 40px !important;
  }

  .sec__title-sub {
    font-size: 19px;
    display: inline-block;
  }

  .sec__title-main {
    font-size: 25px;
    display: inline-block;
    margin-top: 8px;
  }

  h2.sec__title.outline-heading {
    font-size: 25px !important;
  }

  .top-intro__title {
    font-size: 25px;
  }

  .top-intro__content {
    font-size: 2rem;
  }

  .top-intro__text {
    font-size: 1.6rem;
  }

  .top-intro__signature {
    font-size: 1.6rem;
    margin-top: 2rem;
  }

  .past-seminars__title {
    font-size: 25px;
  }

  .header__catchcopy {
    font-size: clamp(2.3rem, 8.2vw, 3.46rem);
    white-space: nowrap;
  }

  .header__subtitle {
    font-size: clamp(2.3rem, 8.2vw, 3.46rem);
    white-space: nowrap;
  }

  .header__organizer {
    font-size: clamp(0.7rem, 2.5vw, 1.05rem);
    white-space: nowrap;
  }

  .header__event {
    font-size: clamp(1.2rem, 4.3vw, 1.80rem);
    white-space: nowrap;
  }

  .outline__split {
    flex-direction: column;
    align-items: center;
  }

  .outline__menu {
    padding: 3% 20px;
  }

  .outline__title span {
    font-size: 1.68rem;
  }

  .outline__list .outline__item {
    font-size: 1.4rem;
  }

  .googleMap__data {
    width: 100%;
    height: 250px;
    max-width: 100%;
  }

  .program-new__container {
    padding: 20px;
  }

  .program-new__box-title {
    font-size: 20px;
  }

  .program-new__item {
    flex-direction: column;
    padding: 15px 0;
  }

  .program-new__time {
    flex: none;
    font-size: 20px;
    margin-bottom: 8px;
  }

  .program-new__content-title {
    font-size: 20px;
    margin-bottom: 6px;
  }

  .program-new__content-presenter {
    font-size: 16px;
    line-height: 1.6;
  }

  .program-new__subtitle {
    font-size: 25px;
  }

  .program-new__title {
    font-size: 16px;
  }

  .sec--speakers {
    padding: 0 8px;
  }

  .speakers-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    padding: 0 8px;
  }

  .speaker-card[data-order-sp="1"]  { order: 1; }
  .speaker-card[data-order-sp="2"]  { order: 2; }
  .speaker-card[data-order-sp="3"]  { order: 3; }
  .speaker-card[data-order-sp="4"]  { order: 4; }
  .speaker-card[data-order-sp="5"]  { order: 5; }
  .speaker-card[data-order-sp="6"]  { order: 6; }
  .speaker-card[data-order-sp="7"]  { order: 7; }
  .speaker-card[data-order-sp="8"]  { order: 8; }
  .speaker-card[data-order-sp="9"]  { order: 9; }
  .speaker-card[data-order-sp="10"] { order: 10; }

  .footer {
    font-size: 1.44rem;
    padding: 19px 0;
  }

  .contact__btn .btn {
    margin-bottom: 40px;
  }
}

/* 過去セミナーグリッド：768px以下でカラム解除 */
@media (max-width: 768px) {
  .sec--past-seminars {
    padding-left: 15px;
    padding-right: 15px;
  }

  .past-seminars-grid {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
    padding: 0;
  }

  .past-seminars-grid > a {
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 600px;
  }

  .past-seminars-grid img {
    width: 100%;
    max-width: 100%;
    height: auto;
    margin: 0 auto;
    display: block;
  }

  .seminar-vol    { font-size: 20px; padding: 6px 16px; }
  .seminar-date   { font-size: 16px; }
  .seminar-event-title  { font-size: 20px; }
  .seminar-speakers     { font-size: 16px; line-height: 1.6; }
  .digest-info          { font-size: 18px; }
}

/* 小画面 */
@media (max-width: 480px) {
  .speakers-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .googleMap__data {
    height: 200px;
  }
}

/* =================================================================
   固定フッターバー（共通）
   ================================================================= */
.fixed-footer-bar {
  display: flex;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(4, 8, 24, 0.96);
  backdrop-filter: blur(14px);
  border-top: 1px solid rgba(58, 123, 213, 0.5);
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 10px 32px;
  box-shadow: 0 -4px 24px rgba(0, 0, 50, 0.6);
  z-index: 9999;
  min-height: 72px;
}

/* 左：開催情報（PC・スマホ共に非表示） */
.footer-bar__info {
  display: none;
  flex-direction: column;
  gap: 2px;
  flex-shrink: 0;
}

.footer-bar__date {
  font-size: 22px;
  font-weight: bold;
  color: #fff;
  letter-spacing: 0.08em;
  line-height: 1.2;
}

.footer-bar__venue {
  font-size: 13px;
  color: rgba(255,255,255,0.65);
  letter-spacing: 0.04em;
  line-height: 1.3;
}

/* ボタングループ（コンテンツ幅に合わせて中央配置） */
.footer-bar__buttons {
  display: flex;
  gap: 12px;
  flex-shrink: 0;
  width: 100%;
  max-width: 1300px;
  margin: 0 auto;
  justify-content: center;
  padding: 0 25px;
}

/* ボタン共通 */
.footer-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.25s ease;
  border: 2px solid transparent;
  color: #fff;
  white-space: nowrap;
  line-height: 1.3;
  width: 600px;
  max-width: 100%;
}

.footer-btn__icon {
  font-size: 23px;
  line-height: 1;
}

.footer-btn__text {
  font-size: 23px;
  line-height: 1.3;
}

.footer-btn__br { display: none; }

/* チラシPDFボタン */
.footer-btn--pdf {
  background: rgba(90,90,90,0.85);
  border-color: rgba(180,180,180,0.4);
}
.footer-btn--pdf:hover {
  background: rgba(110,110,110,0.95);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(255,255,255,0.15);
}

/* お申し込みボタン */
.footer-btn--primary {
  background: linear-gradient(135deg, #3a7bd5, #1a4fa0);
  border-color: #4a8be5;
  box-shadow: 0 0 12px rgba(58,123,213,0.4);
}
.footer-btn--primary:hover {
  background: linear-gradient(135deg, #4a8be5, #2a5fb0);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(58,123,213,0.6);
}

/* ページ下部の余白はfooterのpadding-bottomで確保 */

/* =================================================================
   フッターバー レスポンシブ
   ================================================================= */

/* タブレット */
@media (max-width: 768px) {
  .fixed-footer-bar {
    flex-direction: column;
    justify-content: center;
    gap: 20px;
    padding: 20px;
    min-height: auto;
  }

  .footer-bar__info {
    display: none;
  }

  .footer-bar__date {
    font-size: 22px;
  }

  .footer-bar__venue {
    font-size: 16px;
  }

  .footer-bar__buttons {
    width: 100%;
    gap: 20px;
  }

  .footer-btn {
    flex: 1;
    padding: 20px 24px;
    justify-content: center;
  }

  .footer-btn__icon { font-size: 23px; }
  .footer-btn__text { font-size: 23px; }

}

/* スマホ小 */
@media (max-width: 480px) {
  .footer-bar__info {
    display: none;
  }

  .footer-bar__date { font-size: 20px; }
  .footer-bar__venue { font-size: 14px; }

  .footer-btn__text { font-size: 21px; }
  .footer-btn__icon { font-size: 21px; }

}