/* ============================================================
   0. 変数・ベース
   ============================================================ */
:root {
  --navy: #0b2447;
  --navy-2: #123a6b;
  --blue: #0c5796;
  --gold: #c8a04a;
  --gold-2: #e0c078;
  --red: #e60012;
  --ink: #101d2e;
  --text: #33465c;
  --muted: #687b91;
  --line: #cdd8e4;
  --bg-gray: #f2f3f5;
  --white: #fff;
  --max: 1080px;
  --radius: 12px;
  --font: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
  --font-mincho: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family:
    "Noto Sans JP", "Yu Gothic", "YuGothic", "Hiragino Kaku Gothic ProN", "Meiryo", sans-serif;
  line-height: 1.8;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  max-width: 100%;
  display: block;
}
button,
input,
select,
textarea {
  font: inherit;
}
.container {
  width: min(calc(100% - 48px), var(--max));
  margin-inline: auto;
}
.section {
  padding: 80px 0;
}
.section-title {
  text-align: center;
  font-size: clamp(20px, 2.6vw, 24px);
  font-weight: 700;
  letter-spacing: 0.04em;
  margin: 0 auto 40px auto;
  line-height: 1.3;
  padding:0 .5em;
  background: linear-gradient(transparent 65%, #e0c078 70%);
  width: fit-content;
}

.pc {
  display: block;
}
.sp,.spsp {
  display: none;
}

/* ============================================================
   1. ヒーロー（メインビジュアル）
   ※タイトルロゴを画像で差し替える場合は .mv-logo の中身を <img> に
   ============================================================ */
.mv {
  position: relative;
  overflow: hidden;
  background: url(../img/mv_bg.jpg) no-repeat center center;
  background-size: cover;
  padding: 40px 0 60px;
}
.mv-inner {
  position: relative;
  z-index: 1;
}
/* タイトル */
.mv-logo {
  justify-content: center;
  display: flex;
}

/* コピー＋開催情報 */
.mv-meta {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 36px;
  flex-wrap: wrap;
}
.mv-copy {
  font-size: clamp(18px, 3vw, 36px);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 1em;
  color: #111;
  font-family: var(--font-mincho);
  text-align: center;
}
.mv-date {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* ロゴ枠（出展企業） */
.mv-logos {
  margin-top: 26px;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 3px;
}
.mv-logos .logo-box {
  aspect-ratio: 4/5;
  max-width: 90px;
  background: #fff;
  border: 1px solid #e3e6ea;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 2px 2px 4px #ccc;
  overflow: clip;
}
.mv-logos .logo-box img{
  max-width: 130%;
  height: auto;
}
main {
  background: url(../img/main_bg.jpg) no-repeat center center;
  background-attachment: fixed;
  background-size: cover;
}
/* ============================================================
   2. 申込バー（黒帯）
   ============================================================ */
.cta-bar {
  position: sticky;
  top: 0;
  z-index: 80;
  background: #0d0d0d;
  color: #fff;
  padding: 14px 0;
}
.cta-bar .container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  flex-wrap: wrap;
}
.cta-bar-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 180px;
  height: 38px;
  padding: 0 20px;
  border: 1px solid #fff;
  border-radius: 3px;
  font-size: 16px;
  font-weight: 700;
  transition: 0.25s;
}
.cta-bar-btn:hover {
  background: #fff;
  color: #0d0d0d;
}
.cta-bar-note {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

/* ============================================================
   3. カンファレンスとは
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 36px;
  align-items: start;
}
.about-photo {
  position: relative;
  aspect-ratio: 4/3;
  background: #dfe3e8;
  border-radius: 2px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #8b949e;
  font-size: 12px;
}
.about-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about-body p {
  margin: 0 0 20px;
  font-size: 16px;
  line-height: 1.8;
  color: #222;
  text-align: justify;
}
.about-body p:last-child {
  margin-bottom: 0;
}
.about-body p b {
  font-size: 26px;
  font-weight: 700;
  font-family: var(--font-mincho);
  letter-spacing: 0;
  line-height: 1.3;
  text-align: center;
}

/* ============================================================
   4. 基調講演
   ============================================================ */
.keynote-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.keynote-card {
  position: relative;
  aspect-ratio: 1 / 1;
  background-position: right top;
  background-repeat: no-repeat;
  background-size: contain;
  padding: 1em;
  border-radius: 5px;
  border:1px solid #fff;
  box-shadow: #ddd 2px 2px 8px;
}
#card1 {
  background-image: url(../img/keynote_card1.jpg);
}
#card2 {
  background-image: url(../img/keynote_card2.jpg);
}
#card3 {
  background-image: url(../img/keynote_card3.jpg);
}

.keynote-time {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}
.keynote-time .live {
  color: #c00;
  font-size: 13px;
  font-weight: 900;
  padding: 0 6px;
  border: #c00 2px solid ;
  border-radius: 2px;
  letter-spacing: 0.06em;
}
.keynote-time span {
  font-size: 16px;
  font-weight: 700;
  color: #111;
}
.keynote-card h3 {
  position: relative;
  z-index: 1;
  font-size: 18px;
  font-weight: 900;
  line-height: 1.3;
  margin: 0 0 14px;
  color: #111;
  letter-spacing: 0.01em;
}
.keynote-labels {
  position: absolute;
  left: 0;
  bottom: 14px;
  width: 78%;
}
.keynote-company {
  background: #111;
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.45;
  padding: 3px 2px 3px 7px;
  margin-bottom: 6px;
  letter-spacing: 0.02em;
  width: fit-content;
}
.keynote-name {
  background: #111;
  color: #fff;
  font-size: 20px;
  font-weight: 900;
  padding: 8px 20px;
  letter-spacing: 0.1em;
  line-height: 1;
  width: fit-content;
}

/* ============================================================
   5. 当日のプログラム（既存HTMLから流用）
   ============================================================ */
.agenda-panel {
  background: linear-gradient(180deg, #c3b88c 0%, #efefef 100%);
  border-radius: 8px;
  padding: 26px;
  color: #fff;
}
.agenda-note {
  display: block;
  text-align: center;
  margin: -30px 0 40px;
  font-size: 14px;
  color: #222;
  line-height: 1.3;
}
.accordion-list {
  display: grid;
  gap: 10px;
}
.seminar {
  background: #fff;
  /* background: #fff url(../img/seminar_list_bg.png) no-repeat left top; */
  /* background-size: 30px 30px; */
  /* border: 1px solid rgba(255, 255, 255, 0.13); */
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 10px 24px rgba(0, 8, 18, 0.16);
  color: var(--ink);
}
.seminar button {
  width: 100%;
  border: 0;
  background: #fff url(../img/seminar_list_bg.png) no-repeat left top;
  background-size: 30px 30px;
  padding: 0;
  text-align: left;
  cursor: pointer;
  color: var(--ink);
}
.seminar.keynote-program {
  border: 1px solid #c3b88c;
}
.seminar.keynote-program button {
  /* background: #ffffef; */
  background: #ffffef url(../img/keynote_list_bg.png) no-repeat left top;
  background-size: 30px 30px;
}
.seminar-head {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr) 36px 34px;
  gap: 16px;
  align-items: center;
  padding: 14px 18px;
}
.time {
  font-size: 17px;
  color: var(--gold);
  font-weight: 900;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.seminar-title small {
  display: block;
  color: #74899d;
  font-size: 9px;
  letter-spacing: 0.11em;
  margin-bottom: 4px;
  font-weight: 900;
}
.seminar-title strong {
  display: block;
  font-size: 16px;
  line-height: 1.5;
  color: var(--navy);
}
.program-type {
  display: inline-flex;
  align-items: center;
  margin-left: 7px;
  padding: 2px 6px;
  border-radius: 3px;
  background: #0d4e7d;
  color: #fff;
  font-size: 7px;
  font-weight: 900;
  letter-spacing: 0.09em;
  vertical-align: middle;
}
/* .seminar-speaker-mini {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 10px;
  align-items: flex-start;
  min-width: 0;
} */
.speaker-thumb {
  width: 44px;
  height: 52px;
  background: linear-gradient(135deg, #cfdbe7, #eef3f7);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #73879a;
  font-size: 8px;
  overflow: hidden;
  text-align: center;
}
.speaker-mini-text {
  min-width: 0;
}
.speaker-mini-text .mini-company {
  display: block;
  color: #443;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.35;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.speaker-mini-text .mini-company i{
  font-size: 85%;
  font-weight: 500;
  font-style: normal;
  margin-left: .5em;
}
.speaker-mini-text .mini-name {
  display: block;
  color: #333;
  font-size: 18px;
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: 4px;
}
.toggle {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  border: 1px solid #e0c078;
  color: #222;
  font-size: 18px;
  transition: 0.25s;
}
.seminar.open .toggle {
  transform: rotate(45deg);
  background: #c8a04a;
  color: #fff;
  border-color: #c8a04a;
}
.seminar-body {
  display: none;
  border-top: 1px solid #dce5ed;
  padding: 24px;
  background: #efefef url(../img/seminar-body_bg.jpg) no-repeat 0 0;
  background-size: cover;
}
.seminar.open .seminar-body {
  display: block;
}
.seminar-content {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 20px;
}
.detail-label {
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 1.5em;
  padding-left: 7px;
  line-height: 1;
}
.detail-label i{
  color: #c8a04a;
  font-size: 14px;
  font-weight: 100;
  margin-left: .5em;
}
.profile-block .detail-label {
  border-left:solid 5px #00558a;
}
.overview-block .detail-label {
  border-left:solid 5px #ffb307;
}

.overview-block,
.profile-block {
  padding: 20px 22px;
  background: #fff;
  /* border: 1px solid #eee; */
  border-radius: 8px;
  box-shadow: 2px 2px 6px #ccc;
}
.overview-block{
  background-image:url("../img/seminar-overview_bg.png") , url("../img/seminar-overview_bg2.png");
  background-repeat: no-repeat , no-repeat;
  background-position: right bottom , left top;
  background-size: 20px 20px ,  20px 20px;
  background-color: #fff;
}
.profile-block{
  background-image:url("../img/seminar-profile_bg.png") , url("../img/seminar-profile_bg2.png");
  background-repeat: no-repeat , no-repeat;
  background-position: right bottom , left top;
  background-size: 20px 20px ,  20px 20px;
  background-color: #fff;
}
.overview-block p,
.profile-block p {
  margin: 0;
  color: #333;
  font-size: 14px;
  line-height: 1.5;
  text-align: justify;
}
.overview-block p{
  font-size: 16px;
  line-height: 1.8;
  font-weight: 500;
}
.overview-block dl {
  font-size: 16px;
  line-height: 1.8;
  font-weight: 500;
  display: flex;
}
.overview-block dl dt{
  width: 4em;
}
.overview-block dl dd{
  width: calc(100% - 4em);
  margin-left:0;
}

.profile-block p {
  word-break: break-all;
}
.profile-head {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-bottom: 14px;
}
.profile-head .speaker-photo {
  width: 150px;
  height: 150px;
  flex: 0 0 auto;
  border-radius: 6px;
  background: linear-gradient(135deg, #cfdbe7, #eef3f7);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #6f8295;
  font-size: 8px;
  border: 1px solid var(--line);
}
.company {
  color: var(--gold);
  font-weight: 700;
  font-size: 12px;
  margin-bottom: 3px;
}
.seminar-speaker-mini .company{
  line-height: 1.3;
}
.speaker {
  font-weight: 900;
  font-size: 18px;
  line-height: 1.35;
  margin: 0 0 2px;
}
.keynote-name i,.speaker i{
  font-weight: 500;
  font-size: 85%;
  font-style: normal;
  margin-left: .5em;
}
.role {
  color: var(--muted);
  font-size: 10px;
  margin: 0;
}
.seminar .seminar-head-static {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px; /* ← .seminar button と同じ値に */
}
.seminar-nolink .seminar-head-wrap {
  padding: 20px; /* ← .seminar button と同じ値に */
}
.seminar .seminar-static .static-title {
  font-weight: 700;
}
.speaker-photo.has-photo {
  padding: 0;
  font-size: 0;
  overflow: hidden;
}
.speaker-photo.has-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
/* ============================================================
   6. 主催
   ============================================================ */
.host {
  text-align: center;
}
.host .section-title{
  font-size: 21px;
  letter-spacing: .5em;
  margin-bottom: 20px;
  font-weight: 500;
  background:none;
}
.host-mark {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 900;
  letter-spacing: 0.02em;
  margin-bottom: 22px;
}
.host-mark img{
  width: 360px;
  height: auto;
  margin:0 auto;
}
.host p {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.5;
  color: #222;
}
.host p:last-child {
  margin-bottom: 0;
}

/* ============================================================
   7. 申込フォーム
   ============================================================ */
.entry {
  background: var(--bg-gray);
}
#entry .section-title{
  background: none;
}
.form-wrap {
  max-width: 680px;
  margin-inline: auto;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 32px;
}
/* .form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.field.full {
  grid-column: 1/-1;
}
.field label {
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}
.required {
  background: var(--red);
  color: #fff;
  font-size: 9px;
  font-weight: 900;
  padding: 1px 5px;
  border-radius: 2px;
}
.field input,
.field select {
  height: 44px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #fff;
}
.field input:focus,
.field select:focus {
  outline: 2px solid var(--blue);
  outline-offset: 1px;
}
.privacy {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin: 20px 0 18px;
  font-size: 12px;
  color: var(--text);
}
.submit-btn {
  width: 100%;
  height: 56px;
  border: 0;
  border-radius: 4px;
  cursor: pointer;
  background: var(--navy);
  color: #fff;
  font-size: 16px;
  font-weight: 900;
  letter-spacing: 0.04em;
  transition: 0.25s;
}
.submit-btn:hover {
  background: var(--navy-2);
}
.form-note {
  margin-top: 12px;
  font-size: 11px;
  color: var(--muted);
} */

/* ============================================================
   8. フッター
   ============================================================ */
footer {
  background: #0d0d0d;
  color: #fff;
  padding: 28px 0;
  font-size: 12px;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-brand {
  font-weight: 900;
  font-size: 15px;
  letter-spacing: 0.02em;
}

.mobile-fixed {
  display: none;
}
.pc-br {
  display: inline;
}
@media (max-width: 640px) {
  .pc-br {
    display: none;
  }
}

/* ============================================================
   9. レスポンシブ
   ============================================================ */
@media (max-width: 900px) {
  .section {
    padding: 60px 0;
  }
  .mv-logos {
    grid-template-columns: repeat(5, 1fr);
  }
  .about-grid {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 24px;
  }
  .keynote-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    max-width: 420px;
    margin-inline: auto;
  }
  .seminar-head {
    grid-template-columns: 66px minmax(0, 1fr) 150px 32px;
    gap: 12px;
  }
  .seminar-content {
    grid-template-columns: 1fr;
  }
  .detail-label i{
  font-size: 12px;
}

}
@media (max-width: 640px) {
  body {
    padding-bottom: 70px;
  }
  .container {
    width: min(calc(100% - 16px), var(--max));
  }
  .section {
    padding: 48px 0;
  }
  .section-title {
    margin-bottom: 20px;
  }
  .pc {
    display: none;
  }
  .sp {
    display: block;
  }

  /* MV */
  .mv {
    padding: 20px 0 28px;
  }
  .mv-logo {
    text-align: center;
  }
  .mv-meta {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 16px;
    padding-left: 0;
  }
  .mv-date {
    justify-content: center;
  }
  .mv-date img{
    max-height: 48px;
  }
  .mv-logos {
    grid-template-columns: repeat(5, 1fr);
    gap: 5px;
    margin-top: 20px;
  }

  /* CTA bar */
  .cta-bar {
    position: static;
    padding: 12px 0;
  }
  .cta-bar .container {
    gap: 10px;
  }
  .cta-bar-note {
    font-size: 11px;
  }

  /* About */
  .about-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .about-photo {
    aspect-ratio: 16/10;
    max-width: 100%;
  }
  .about-body p {
    font-size: 13px;
    line-height: 1.95;
  }

  /* Keynote */
  .keynote-grid {
    max-width: none;
  }
  .keynote-card{
    width: 90%;
    height: auto;
    margin:0 auto;
  }

  .keynote-card h3 {
    font-size: 18px;
  }

  /* Program */
  .detail-label {
    font-size: 16px;
  }
  .agenda-panel {
    padding: 7px;
    border-radius: 6px;
  }
  .seminar-head {
    grid-template-columns: 0 minmax(0, 1fr) 30px;
    padding: 12px 7px 12px 0;
    gap: 8px;
  }
  .time {
    margin-left:7px;
  }
  .seminar-title strong {
    font-size: 12px;
  }
  .seminar-title small {
    font-size: 7px;
  }
  .seminar-speaker-mini {
    grid-column: 2;
    grid-row: 2;
    grid-template-columns: 40px 1fr;
    gap: 8px;
    margin-top: 4px;
  }
  .speaker-mini-text .mini-company {
    font-size: 16px;
  }
  .speaker-thumb {
    width: 40px;
    height: 50px;
  }
  .host-mark img{
    width: 70%;
  }
  .toggle {
    grid-column: 3;
    grid-row: 1/3;
    width: 28px;
    height: 28px;
    font-size: 16px;
  }
  .seminar-body {
    padding: 14px 12px;
  }
  .seminar-content {
    gap: 12px;
  }
  .overview-block,
  .profile-block {
    padding: 15px;
  }
  .profile-block p{
    font-size: 12px;
    line-height: 1.3;
  }
  .overview-block p,
  .overview-block dl {
    font-size: 14px;
    line-height: 1.5;
  }
  .agenda-note{
    margin-top:0;
  }

  /* Form */
  .form-wrap {
    padding: 22px 18px;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }

  /* 固定CTA */
  .mobile-fixed {
    display: block;
    position: fixed;
    z-index: 110;
    left: 10px;
    right: 10px;
    bottom: 10px;
    height: 52px;
    border-radius: 6px;
    background: var(--navy);
    color: #fff;
    font-weight: 900;
    text-align: center;
    line-height: 52px;
    box-shadow: 0 12px 34px rgba(11, 31, 58, 0.35);
    font-size: 15px;
  }
  footer {
    padding: 22px 0 76px;
  }
  .footer-inner {
    flex-direction: column;
    text-align: center;
    gap: 8px;
  }
}
@media (max-width: 380px) {
  .spsp{display: block;}
}
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
  html {
    scroll-behavior: auto;
  }
}