/* ==========================================================
   Security MOTION 2026 Winter LP
   Figma: コピー0905（Um7IZPXsDA35LtRNCQgiU1） PC 1:44 / モーダル 18:5588
   PCはFigma 1920px原寸。SPはデザイン無しのため想定で構築。
   ========================================================== */
:root {
  --red: #e30012;
  --black: #090909;
  --ink: #020202;
  --white: #fefefe;
  --grey: #646363;
  --bg: #f4f6f6;
  --jp: "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP", sans-serif;
  --en: "Montserrat", "Helvetica Neue", Arial, sans-serif;
  --s: 1;   /* ヒーロー(1680基準)のスケール。JSが算出 */
  --s2: 1;  /* SPヒーロー(860基準) */
  --s3: 1;  /* 登壇者ブロック(500基準) */
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--jp);
  color: var(--black);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
body.is-menu-open, body.is-modal-open { overflow: hidden; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
p, h1, h2, h3, ul, dl, dd { margin: 0; padding: 0; }
ul { list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
.container { width: 1400px; max-width: calc(100% - 40px); margin: 0 auto; }

/* ---------- 共通: セクション見出し (h3コンポーネント) ---------- */
.sec-head { display: flex; flex-direction: column; align-items: center; gap: 5px; text-align: center; }
.sec-head__tri {
  width: 12.75px; height: 13.7px; background: var(--red);
  clip-path: polygon(0 0, 100% 0, 50% 100%);
  border-radius: 2px;
}
.sec-head__en { font-family: var(--en); font-weight: 700; font-size: 18px; line-height: 1.35; letter-spacing: 1.8px; color: var(--red); text-transform: uppercase; }
.sec-head__ja { font-weight: 700; font-size: 52px; line-height: 1.5; letter-spacing: 2.6px; color: var(--black); transform: skewX(-4.74deg); white-space: nowrap; }

/* ---------- 共通: 時間 / タグ / 詳細ボタン ---------- */
.time { font-family: var(--en); font-weight: 700; font-size: 26px; line-height: 1.35; color: var(--red); }
.time--w { color: var(--white); }
.tag {
  display: inline-flex; align-items: center; justify-content: center;
  width: 250px; height: 56px; background: var(--red); color: var(--white);
  font-weight: 700; font-size: 24px; line-height: 1.5; letter-spacing: -0.72px; transform-origin: center;
}
.tag span { display: inline-block; transform: skewX(-4.74deg); }
.more {
  display: flex; align-items: center; justify-content: center;
  width: 60px; height: 60px; border-radius: 50%; background: var(--red);
  transition: transform .2s;
}
.more:hover { transform: scale(1.06); }
.more img { width: 30px; height: 30px; }

/* ---------- 共通: CTA ---------- */
.cta { display: flex; flex-direction: column; align-items: center; gap: 10px; width: 500px; max-width: 100%; margin: 0 auto; }
.cta__lead { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; line-height: 1.5; color: var(--red); white-space: nowrap; }
.cta__slash { position: relative; width: 12.7px; height: 20px; flex: none; }
.cta__slash::before { content: ""; position: absolute; left: 50%; top: 50%; width: 23.7px; height: 2px; background: var(--red); transform-origin: center; }
.cta__slash--l::before { transform: translate(-50%, -50%) rotate(57.57deg); }
.cta__slash--r::before { transform: translate(-50%, -50%) rotate(-57.57deg); }
.cta__btn {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  width: 100%; padding: 20px 30px; border-radius: 100px; background: var(--red);
  color: #fff; font-weight: 700; font-size: 25px; line-height: 1.5; letter-spacing: 1.25px; white-space: nowrap;
  transition: opacity .2s;
}
.cta__btn:hover { opacity: .85; }
.cta__btn img { width: 30px; height: 30px; }

/* ==========================================================
   header nav
   ========================================================== */
.nav {
  position: sticky; top: 0; z-index: 100; height: 80px;
  background: rgba(254, 254, 254, .2);
  -webkit-backdrop-filter: blur(12.5px); backdrop-filter: blur(12.5px);
}
.nav__inner { position: relative; height: 100%; }
.nav__logo { position: absolute; left: 2.6%; top: 33px; width: 54.5px; }
.nav__links {
  position: absolute; right: 286px; top: 26px; display: flex; gap: 50px;
  font-weight: 700; font-size: 18px; line-height: 1.6; letter-spacing: .54px;
}
.nav__links a:hover { color: var(--red); }
.nav__drawer-cta { display: none; }
.nav__cta {
  position: absolute; right: 1.88%; top: 16px; width: 210px; height: 48px;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  padding-left: 6px;
  border: 1.5px solid var(--red); border-radius: 100px; background: var(--white);
  color: var(--red); font-weight: 700; font-size: 18px; line-height: 1.5;
  transition: background .2s, color .2s;
}
.nav__cta-arrow { width: 6.5px; height: 9.5px; }
.nav__cta:hover { background: var(--red); color: #fff; }
.nav__cta:hover .nav__cta-arrow path { stroke: #fff; }
.nav__burger { display: none; }

/* ==========================================================
   hero
   ========================================================== */
.hero { position: relative; background: var(--white); overflow: hidden; }
.hero__shield {
  position: absolute; left: calc(50% - 328px); top: -88px; width: 511px; height: 504px;
  pointer-events: none; z-index: 0;
}
/* 1680×483 のステージを --s で拡縮 */
.hero__stage-wrap { position: relative; z-index: 1; height: calc(483px * var(--s)); margin-top: 55px; }
.hero__stage {
  position: absolute; left: 50%; top: 0; width: 1680px; height: 483px;
  transform: translateX(-50%) scale(var(--s)); transform-origin: top center;
  display: flex; align-items: flex-start; gap: 52px;
}
.hero__left { position: relative; width: 768px; height: 483px; flex: none; }
.hero__logo-block { position: absolute; left: 0; top: 0; width: 696px; }
.hero__logo { width: 545px; height: 242px; margin-left: 75.5px; }
.hero__title {
  margin-top: 20px; width: 696px; text-align: center;
  font-weight: 900; font-size: 26px; line-height: 1.5; letter-spacing: .78px; color: var(--black);
}
.hero__title .em { color: var(--red); }
.hero__date { position: absolute; left: 0; top: 325px; width: 768px; height: 158px; font-family: var(--en); font-weight: 700; color: var(--black); line-height: 1.5; }
.hero__date > span { position: absolute; white-space: nowrap; }
.hero__d-year { left: 0; top: 70px; font-size: 42px; }
.hero__d-month { left: 104px; top: 0; font-size: 105.33px; }
.hero__d-dot { left: 212px; top: 38px; font-size: 71.4px; }
.hero__d-day { left: 226px; top: 0; font-size: 105.33px; }
.hero__d-dow { left: 334px; top: 60px; width: 39px; height: 58px; font-weight: 900; font-size: 26px; letter-spacing: -.52px; display: flex; align-items: center; justify-content: center; }
.hero__d-dow { transform: rotate(90deg); }
.hero__d-start { left: 381px; top: 38px; font-size: 70px; letter-spacing: -1.4px; }
.hero__d-tri { left: 574px; top: 82px; width: 12.7px; height: 22.8px; background: var(--black); clip-path: polygon(0 0, 100% 50%, 0 100%); border-radius: 2px; }
.hero__d-end { left: 594px; top: 38px; font-size: 70px; letter-spacing: -1.4px; }

.hero__speakers { position: relative; display: flex; width: 860px; height: 450px; margin-top: 16.5px; flex: none; }
.hero__spk { position: relative; width: 450px; height: 450px; flex: none; }
.hero__spk--1 { margin-right: -40px; z-index: 1; }
.hero__spk--2 { z-index: 2; }
.hero__spk-photo {
  position: absolute; inset: 0;
  -webkit-mask-image: linear-gradient(to bottom, #000 71.75%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 71.75%, transparent 100%);
}
/* 写真の拡縮・位置はFigma実描画との画素フィットで算出（450×450基準） */
.hero__spk-photo img { position: absolute; max-width: none; height: auto; }
.hero__spk--1 .hero__spk-photo img { left: -18px; top: 20px; width: 486px; }
.hero__spk--2 .hero__spk-photo img { left: 14px; top: 56px; width: 422px; }
.hero__spk-label {
  position: absolute; right: 0; bottom: 0; height: 140px; padding: 10px 30px; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px;
  background: rgba(0, 0, 0, .55); color: #fff; text-align: center;
  -webkit-backdrop-filter: blur(9.9px); backdrop-filter: blur(9.9px);
  box-shadow: 0 0 51.9px rgba(218, 227, 227, .6);
}
.hero__spk-co { font-weight: 700; font-size: 17px; line-height: 1.35; letter-spacing: .51px; }
.hero__spk-pos { font-weight: 400; font-size: 14px; line-height: 1.6; letter-spacing: .42px; white-space: nowrap; }
.hero__spk-name { font-weight: 900; font-size: 26px; line-height: 1.5; letter-spacing: .78px; }
.hero__spk-name small { font-weight: 700; font-size: 18px; letter-spacing: .54px; }

.hero__bottom {
  position: relative; z-index: 1; margin-top: -1px;
  padding: 28px 10px 60px;
  background: linear-gradient(64deg, rgba(255, 255, 255, .9) 34%, rgba(244, 244, 244, .9) 97%);
  box-shadow: 0 -29px 29px rgba(0, 0, 0, .03);
}
.hero__logos { display: grid; grid-template-columns: repeat(10, 130px); gap: 20px; justify-content: center; margin-bottom: 30px; }
.hero__logos li { width: 130px; height: 40px; }
.hero__logos img { width: 130px; height: 40px; object-fit: cover; }

/* SP固定CTA */
.sp-cta { display: none; }

/* ==========================================================
   about
   ========================================================== */
.about {
  position: relative; height: 644px; padding: 100px 20px 0;
  background: var(--white) url(../assets/bg-circuit.jpg) center bottom / 1920px 644px no-repeat;
}
.about__panel {
  display: flex; justify-content: space-between; align-items: flex-start;
  width: 1400px; max-width: 100%; margin: 0 auto; padding: 60px; background: rgba(254, 254, 254, .9);
}
.about__left { width: 459.5px; display: flex; flex-direction: column; gap: 40px; }
.about__en { font-family: var(--en); font-weight: 700; font-size: 20px; line-height: 1.35; color: var(--red); }
.about__logo { width: 459.5px; height: 204px; }
.about__text { width: 715px; font-weight: 700; font-size: 18px; line-height: 2; letter-spacing: .54px; }

/* ==========================================================
   special offers
   ========================================================== */
.offers {
  position: relative; padding: 100px 0 23px;
  background: #f4f4f4 url(../assets/bg-offers.png) center / cover no-repeat;
}
.offers__inner { display: flex; flex-direction: column; align-items: center; gap: 60px; }
.offers__body { width: 100%; display: flex; flex-direction: column; gap: 20px; }
.offer-cards { display: flex; justify-content: space-between; gap: 40px; }
.offer-card { position: relative; width: 424px; height: 354px; flex: none; }
.offer-card__badge {
  position: absolute; left: 50%; top: 0; width: 124.75px; height: 45px; transform: translateX(-50%);
  background: var(--white); border-radius: 62px 62px 0 0 / 45px 45px 0 0;
}
.offer-card__num { position: absolute; left: 50%; top: 15px; transform: translateX(-50%); z-index: 1; display: flex; flex-direction: column; align-items: center; text-align: center; }
.offer-card__num-l { font-weight: 700; font-size: 18px; line-height: 2; letter-spacing: .54px; color: var(--grey); margin-bottom: -5px; }
.offer-card__num-n { font-family: var(--en); font-weight: 700; font-size: 26px; line-height: 1.35; color: var(--red); }
.offer-card__box {
  position: absolute; left: 0; right: 0; top: 41px; height: 317px; padding: 40px;
  background: var(--white); display: flex; flex-direction: column; align-items: center; gap: 20px; text-align: center;
}
.offer-card__icon { width: 190.5px; height: 110px; margin-top: -5px; margin-bottom: -5px; }
.offer-card__l1 { font-weight: 700; font-size: 18px; line-height: 2; letter-spacing: .54px; }
.offer-card__l2 { margin-top: -17px; font-weight: 900; font-size: 26px; line-height: 1.5; letter-spacing: .78px; color: var(--red); white-space: nowrap; }
.offer-card__l2 .en { font-family: var(--en); font-weight: 700; letter-spacing: 0; }
.offers__note { font-weight: 400; font-size: 12px; line-height: 1.6; letter-spacing: .36px; }
.offers__note a { text-decoration: underline; }

/* ==========================================================
   time table
   ========================================================== */
.tt { position: relative; padding: 100px 0 35px; background: var(--white); overflow: hidden; }
.tt__dots {
  position: absolute; left: 0; right: 0; top: 1414px; height: 613px; z-index: 0; opacity: .3;
  background: url(../assets/bg-dots.png) center -200px / 1920px auto no-repeat;
  transform: scaleX(-1);
  pointer-events: none;
}
.tt .sec-head { position: relative; z-index: 1; margin-bottom: 84px; }

/* --- 基調講演 --- */
.keynote {
  position: relative; z-index: 1; width: 1660px; max-width: 100%; height: 579px; margin: 0 0 100px;
  background: #fff url(../assets/keynote-bg.png) -507px 0 / 2673px auto no-repeat;
  box-shadow: 0 0 50px rgba(0, 0, 0, .05); overflow: hidden;
}
.keynote__en {
  position: absolute; right: 40px; top: 49px; font-family: var(--en); font-weight: 700; font-size: 97px; line-height: 1.35;
  color: var(--white); text-transform: uppercase; white-space: nowrap;
}
.keynote__body { position: absolute; left: 260px; top: 100px; width: 780px; color: var(--white); display: flex; flex-direction: column; align-items: flex-start; }
.keynote__body .tag { margin-bottom: 20px; }
.keynote__body .time { margin-bottom: 15px; }
.keynote__title { font-weight: 700; font-size: 32px; line-height: 1.4; letter-spacing: .96px; margin-bottom: 20px; }
.keynote__name { font-weight: 900; font-size: 26px; line-height: 1.5; letter-spacing: .78px; margin-bottom: 10px; }
.keynote__pos { font-weight: 900; font-size: 22px; line-height: 1.5; letter-spacing: .66px; }
.keynote__photo { position: absolute; left: 989px; top: 74.5px; width: 541px; height: 503px; object-fit: contain; object-position: center bottom; }
.keynote .more { position: absolute; left: 1560px; top: 479.5px; z-index: 2; }

/* --- カード共通 --- */
.tt__cards { position: relative; z-index: 1; width: 1400px; max-width: calc(100% - 40px); margin: 0 auto; display: flex; flex-direction: column; gap: 50px; }
.pcard { display: flex; flex-direction: column; align-items: flex-start; }
.pcard__body {
  width: 1375px; max-width: 100%; margin-bottom: -25px; padding: 30px;
  background: rgba(255, 255, 255, .7);
  -webkit-backdrop-filter: blur(2px); backdrop-filter: blur(2px);
  box-shadow: 0 0 50px rgba(0, 0, 0, .05);
  display: flex; gap: 10px; align-items: flex-start;
}
.pcard__main { width: 800px; display: flex; flex-direction: column; align-items: flex-start; }
.pcard__main .time { margin-bottom: 15px; }
.pcard__title { font-weight: 700; font-size: 32px; line-height: 1.4; letter-spacing: .96px; color: var(--black); }
.pcard__logo { width: 226px; height: 80px; margin-top: 30px; object-fit: cover; }
.pcard__foot { position: relative; z-index: 1; width: 100%; display: flex; justify-content: flex-end; }
/* タグ付き（スポンサー講演 / MOTEX講演） */
.pcard--tag .pcard__body { flex-direction: column; gap: 15px; box-shadow: 0 0 30px rgba(229, 0, 18, .1); }
.pcard__cols { display: flex; gap: 10px; align-items: flex-start; width: 100%; }

/* 登壇者ブロック 500×300（--s3 で等比スケール） */
.prf { position: relative; width: 500px; height: 300px; flex: none; }
.prf::before {
  content: ""; position: absolute; right: 0; top: 0; width: 255.5px; height: 272.5px; opacity: .3;
  background: url(../assets/card-shield.png) -154.8px -4.7px / 530.1px auto no-repeat;
  transform: scaleX(-1);
}
.prf__photo {
  position: absolute; left: 0; bottom: 0; width: 268.7px; height: 300px; overflow: hidden;
  -webkit-mask-image: linear-gradient(to bottom, #000 92.8%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 92.8%, transparent 100%);
}
.prf__photo img { position: absolute; left: -58px; top: -22.75px; width: 340.5px; height: auto; max-width: none; }
.prf__label {
  position: absolute; right: 0; bottom: 0; padding: 20px; display: flex; flex-direction: column; gap: 5px; align-items: flex-start;
  background: rgba(255, 255, 255, .6); -webkit-backdrop-filter: blur(8.7px); backdrop-filter: blur(8.7px);
  color: var(--black);
}
.prf__name { font-weight: 900; font-size: 26px; line-height: 1.5; letter-spacing: .78px; white-space: nowrap; }
.prf__co { width: 241.4px; font-weight: 700; font-size: 18px; line-height: 2; letter-spacing: .54px; }
.prf__pos { width: 241.4px; font-weight: 400; font-size: 14px; line-height: 1.6; letter-spacing: .42px; }

/* --- 2カラム --- */
.pcard2col { display: flex; flex-direction: column; gap: 15px; }
.pcard2col__time { padding-left: 30px; }
.pcard2col__row { display: flex; justify-content: space-between; gap: 50px; }
.pcard--half { width: 675px; }
.pcard--half .pcard__body { width: 650px; flex-direction: column; align-items: center; gap: 0; background: rgba(255, 255, 255, .8); }
.pcard--half .pcard__main { width: 100%; }
.pcard--half .pcard__logo { margin-top: 15px; }
.pcard--half .prf { margin-top: 20px; }

/* --- 特別講演 --- */
.special {
  position: relative; display: flex; align-items: flex-end; gap: 30px;
  width: 1400px; max-width: 100%; padding: 30px 30px 0;
  border: 2px solid var(--red); box-shadow: 0 0 30px rgba(229, 0, 18, .1);
  -webkit-backdrop-filter: blur(2px); backdrop-filter: blur(2px);
}
.special__main { width: 810px; flex: none; padding-bottom: 30px; display: flex; flex-direction: column; align-items: flex-start; gap: 15px; }
.special__title { font-weight: 700; font-size: 32px; line-height: 1.4; letter-spacing: .96px; }
.special__row { width: 100%; display: flex; justify-content: space-between; align-items: flex-end; }
.special__spk { width: 500px; display: flex; flex-direction: column; }
.special__co { margin-top: 10px; }
.special__name { font-weight: 900; font-size: 26px; line-height: 1.5; letter-spacing: .78px; }
.special__co { font-weight: 900; font-size: 22px; line-height: 1.5; letter-spacing: .66px; }
.special__pos { font-weight: 700; font-size: 18px; line-height: 2; letter-spacing: .54px; }
.special__logo { width: 250px; height: 100px; object-fit: cover; }
.special__visual { position: relative; width: 372px; height: 419px; flex: none; }
.special__visual::before {
  content: ""; position: absolute; left: 152px; top: 14px; width: 258px; height: 275px; opacity: .3;
  background: url(../assets/card-shield.png) -156.3px -4.7px / 535.3px auto no-repeat; transform: scaleX(-1);
}
.special__photo { position: absolute; inset: 0; overflow: hidden; }
.special__photo img { position: absolute; left: -13.5%; top: -5.7%; width: 115.65%; max-width: none; height: auto; }
.special__foot { position: relative; z-index: 1; padding-bottom: 30px; }

/* ==========================================================
   sponsor
   ========================================================== */
.sponsor { position: relative; height: 611px; padding: 58px 20px 0; background: var(--white); overflow: hidden; }
.sponsor::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background: url(../assets/bg-circuit.jpg) center bottom / 1920px 611px no-repeat; filter: grayscale(1); opacity: .8;
}
.sponsor__panel { position: relative; z-index: 1; }
.sponsor__panel {
  width: 900px; max-width: 100%; margin: 0 auto; padding: 100px 20px; display: flex; flex-direction: column; align-items: center; gap: 60px;
  background: rgba(255, 255, 255, .8); -webkit-backdrop-filter: blur(2px); backdrop-filter: blur(2px);
}
.sponsor__logo { width: 283px; height: 100px; object-fit: cover; }

/* ==========================================================
   information
   ========================================================== */
.info { background: var(--bg); padding: 100px 20px; }
.info__inner { width: 1000px; max-width: 100%; margin: 0 auto; display: flex; flex-direction: column; align-items: center; gap: 60px; }
.info__table { width: 100%; display: flex; flex-direction: column; gap: 10px; }
.info__row { display: grid; grid-template-columns: 200px 1fr; column-gap: 20px; }
.info__row dt, .info__row dd { padding: 10px 0; border-bottom: 1px solid var(--grey); font-weight: 700; font-size: 18px; line-height: 2; letter-spacing: .54px; }
.info__row dt { text-align: center; }
.info__row--lg dt, .info__row--lg dd { padding: 20px 0; }
.info__row small { display: inline; font-weight: 400; font-size: 14px; line-height: 1.6; letter-spacing: .42px; }
.info__row--list dd > small { display: block; }
.info__row--list dd > small + br { display: none; }

/* ==========================================================
   entry
   ========================================================== */
.entry { background: var(--white); padding: 100px 20px; }
.entry__inner { width: 1000px; max-width: 100%; margin: 0 auto; display: flex; flex-direction: column; align-items: center; gap: 60px; }
.hs-form-slot { width: 100%; min-height: 200px; }
.hs-slot-note { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; min-height: 480px; border: 2px dashed #c9cdd0; background: #f9fafa; text-align: center; }
.hs-slot-note__ttl { font-weight: 700; font-size: 20px; color: var(--grey); }
.hs-slot-note__sub { font-size: 14px; color: #8a8a8a; }
.form-error { padding: 40px 20px; text-align: center; font-size: 16px; color: var(--grey); }

/* ==========================================================
   footer
   ========================================================== */
.footer__pp { position: relative; min-height: 778px; padding: 100px 20px; background: var(--bg); overflow: hidden; }
.footer__podium { position: absolute; opacity: .2; overflow: hidden; pointer-events: none; }
.footer__podium img { position: absolute; max-width: none; }
.footer__podium--1 { left: calc(50% - 500px); top: 245px; width: 1000px; height: 533.5px; }
.footer__podium--1 img { left: -9.19%; top: -4.72%; width: 122.39%; height: 129.05%; }
.footer__podium--2 { left: calc(50% - 384.3px); top: 245px; width: 765.7px; height: 265.8px; }
.footer__podium--2 img { left: -9.19%; top: -47.85%; width: 122.39%; height: 198.35%; }
.footer__inner { position: relative; width: 1000px; max-width: 100%; margin: 0 auto; display: flex; flex-direction: column; align-items: center; gap: 60px; }
.footer__pps {
  width: 100%; display: grid; grid-template-columns: repeat(5, 1fr); gap: 30px;
  font-weight: 500; font-size: 18px; line-height: 1.2; color: var(--ink); text-align: center;
}
.footer__pps a:hover { color: var(--red); }
.footer__org { display: flex; gap: 40px; color: var(--ink); }
.footer__org-col { display: flex; flex-direction: column; align-items: flex-start; min-width: 246px; }
.footer__org-ttl { align-self: center; font-weight: 700; font-size: 24px; line-height: 1.2; letter-spacing: 1.2px; margin-bottom: 20px; }
.footer__org-name { font-weight: 500; font-size: 18px; line-height: 1.2; margin-bottom: 20px; }
.footer__org-links { font-weight: 500; font-size: 16px; line-height: 2; }
.footer__org-links a:hover { color: var(--red); }
.footer__copy { height: 131px; display: flex; align-items: center; justify-content: center; background: var(--ink); }
.footer__copy img { width: 120px; height: 31.2px; }

/* ==========================================================
   modal
   ========================================================== */
.modal {
  width: 1095px; max-width: calc(100% - 40px); max-height: calc(100dvh - 40px);
  margin: auto; padding: 50px; border: 0; background: var(--bg); color: var(--ink);
  overflow: auto; overscroll-behavior: contain;
}
.modal::backdrop { background: rgba(0, 0, 0, .5); }
.modal__close { position: absolute; right: 14px; top: 14px; width: 36px; height: 36px; z-index: 2; }
.modal__close span { position: absolute; left: 4px; top: 17px; width: 28px; height: 2px; background: var(--black); }
.modal__close span:first-child { transform: rotate(45deg); }
.modal__close span:last-child { transform: rotate(-45deg); }
.modal__inner { display: flex; flex-direction: column; align-items: center; gap: 30px; }
.modal__content { width: 100%; display: flex; flex-direction: column; gap: 30px; }
.modal__content .time { margin-bottom: -15px; }
.modal__title { font-weight: 700; font-size: 32px; line-height: 1.4; letter-spacing: .96px; color: var(--black); }
.modal__desc { padding-bottom: 30px; border-bottom: 1px solid var(--black); font-weight: 400; font-size: 14px; line-height: 1.6; letter-spacing: .42px; }
.modal__prf { display: flex; justify-content: space-between; align-items: flex-start; gap: 40px; }
.modal__prf-text { width: 680px; max-width: 100%; display: flex; flex-direction: column; align-items: flex-start; }
.modal__kana { font-weight: 400; font-size: 14px; line-height: 1.6; letter-spacing: .42px; }
.modal__name { font-weight: 900; font-size: 26px; line-height: 1.5; letter-spacing: .78px; }
.modal__co { font-weight: 700; font-size: 18px; line-height: 2; letter-spacing: .54px; margin-bottom: 10px; }
.modal__bio { font-weight: 400; font-size: 14px; line-height: 1.6; letter-spacing: .42px; margin-bottom: 35px; }
.modal__logo { width: 226px; height: 59px; object-fit: contain; }
.modal__photo {
  position: relative; width: 270px; height: 300px; flex: none; overflow: hidden;
  -webkit-mask-image: linear-gradient(to bottom, #000 92.8%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 92.8%, transparent 100%);
}
.modal__photo img { position: absolute; left: -52px; top: -23px; width: 341.3px; max-width: none; height: auto; }
.modal__cta { width: 500px; max-width: 100%; }

/* ==========================================================
   タブレット (〜1500px): 固定幅ブロックを縮める
   ========================================================== */
@media (max-width: 1500px) {
  .nav__links { right: 250px; gap: 30px; }
  .hero__logos { grid-template-columns: repeat(5, 130px); }
  /* ABOUT: 本文を可変幅に */
  .about__panel { gap: 40px; padding: 50px; }
  .about__left { width: 380px; flex: none; }
  .about__logo { width: 380px; height: auto; }
  .about__text { width: auto; flex: 1; min-width: 0; }
  /* 特典カード: 3枚を等分 */
  .offer-cards { gap: 30px; }
  .offer-card { width: calc((100% - 60px) / 3); flex: 1 1 0; }
  .offer-card__box { padding: 40px 20px; }
  .offer-card__l2 { font-size: 24px; }
  .keynote { width: 100%; }
  .keynote__en { font-size: 6.5vw; }
  .keynote { height: auto; min-height: 579px; }
  .keynote__body { position: relative; left: auto; top: auto; margin-left: 5%; width: 48%; padding: 80px 0 60px; }
  .keynote__title { font-size: 28px; }
  .keynote__pos { font-size: 20px; }
  .keynote__photo { top: auto; bottom: 0; }
  .keynote .more { top: auto; bottom: 40px; }
  .keynote__photo { left: auto; right: 6%; }
  .keynote .more { left: auto; right: 2%; }
  .pcard__body { width: calc(100% - 25px); }
  .pcard__main { width: auto; flex: 1; min-width: 0; }
  .pcard--half { width: calc(50% - 25px); }
  .pcard--half .pcard__body { width: calc(100% - 25px); }
  .special__main { width: auto; flex: 1; min-width: 0; }
  .special__spk { width: auto; }
}

@media (max-width: 1100px) {
  .nav__links { display: none; }
  .nav__cta { right: 20px; }
  .about { height: auto; padding: 60px 20px; background-size: cover; }
  .about__panel { flex-direction: column; gap: 40px; padding: 40px; }
  .about__text { width: 100%; }
  .offer-cards { flex-wrap: wrap; justify-content: center; }
  .offer-card { width: 424px; flex: none; }
  .offer-card__box { padding: 40px; }
  .offer-card__l2 { font-size: 26px; }
  .keynote { height: auto; min-height: 0; padding: 120px 5% 0; }
  .keynote__body { position: static; width: 100%; max-width: 780px; margin-left: 0; padding: 0; }
  .keynote__photo { position: static; width: min(541px, 80%); margin: -60px 0 0 auto; }
  .keynote .more { position: absolute; right: 20px; bottom: 20px; top: auto; }
  .keynote__en { font-size: 64px; top: 10px; right: 20px; }
  .pcard__body, .pcard__cols { flex-direction: column; align-items: center; }
  .pcard__main { width: 100%; }
  .pcard2col__row { flex-direction: column; gap: 30px; }
  .pcard--half { width: 100%; }
  .special { flex-direction: column; align-items: flex-start; }
  .special__visual { align-self: center; }
  .special__foot { align-self: flex-end; }
  .footer__pps { grid-template-columns: repeat(3, 1fr); }
}

/* ==========================================================
   SP (〜767px) ※デザイン無し・想定レイアウト
   ========================================================== */
@media (max-width: 767px) {
  body { padding-bottom: 70px; }
  .sec-head__ja { font-size: 32px; letter-spacing: 1.6px; }
  .sec-head__en { font-size: 14px; }
  .time { font-size: 20px; }
  .tag { width: 180px; height: 44px; font-size: 18px; }
  .cta__lead { font-size: 14px; }
  .cta__btn { font-size: 18px; padding: 16px 20px; }
  .cta__btn img { width: 24px; height: 24px; }

  /* nav */
  .nav { height: 60px; }
  .nav__logo { left: 16px; top: 23px; width: 60px; }
  .nav__cta { display: none; }
  .nav__burger { display: block; position: absolute; right: 12px; top: 8px; width: 44px; height: 44px; }
  .nav__burger span { position: absolute; left: 10px; width: 24px; height: 2px; background: var(--black); transition: transform .25s, opacity .25s; }
  .nav__burger span:nth-child(1) { top: 13px; }
  .nav__burger span:nth-child(2) { top: 21px; }
  .nav__burger span:nth-child(3) { top: 29px; }
  .nav__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
  .nav__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
  .nav__links {
    display: none; position: fixed; inset: 60px 0 0; z-index: 99; flex-direction: column; gap: 0;
    background: rgba(254, 254, 254, .96); padding: 20px; right: auto; top: 60px;
  }
  .nav__links.is-open { display: flex; }
  .nav__links a { display: block; padding: 18px 10px; border-bottom: 1px solid #e5e5e5; font-size: 18px; }
  .nav__drawer-cta { display: block; margin-top: 24px; border: 1.5px solid var(--red); border-radius: 100px; color: var(--red); text-align: center; border-bottom: 1.5px solid var(--red) !important; }

  /* hero: 左右ブロックを縦積みし、各ブロックを個別に等比スケール */
  .hero__shield { width: 300px; height: auto; left: auto; right: -60px; top: -40px; }
  .hero__stage-wrap { height: auto; margin-top: 24px; }
  .hero__stage { position: static; transform: none; width: 100%; height: auto; flex-direction: column; align-items: center; gap: 0; }
  .hero__left { width: 100%; height: calc(483px * var(--s2) * 860 / 768); }
  .hero__left { --hl: calc(var(--s2) * 860 / 768); }
  .hero__logo-block, .hero__date { transform-origin: top left; transform: scale(var(--hl)); }
  .hero__logo-block { left: calc(50% - 348px * var(--hl)); }
  .hero__date { left: calc(50% - 384px * var(--hl)); top: calc(325px * var(--hl)); }
  .hero__speakers { width: 860px; height: calc(450px * var(--s2)); margin-top: 10px; transform: scale(var(--s2)); transform-origin: top center; align-self: center; }
  .hero__speakers { height: 450px; margin-bottom: calc(450px * var(--s2) - 450px); }
  .hero__bottom { margin-top: 20px; padding: 24px 16px 40px; }
  .hero__logos { grid-template-columns: repeat(3, 1fr); gap: 12px; width: 100%; max-width: 360px; margin: 0 auto 24px; }
  .hero__logos li { width: auto; height: auto; }
  .hero__logos img { width: 100%; height: auto; aspect-ratio: 130 / 40; }

  .sp-cta {
    display: flex; align-items: center; justify-content: center; position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 90;
    height: 52px; border-radius: 100px; background: var(--red); color: #fff; font-weight: 700; font-size: 17px; letter-spacing: 1px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, .2); padding-bottom: env(safe-area-inset-bottom);
  }

  /* about */
  .about { padding: 50px 16px; }
  .about__panel { padding: 30px 20px; gap: 30px; }
  .about__left { width: 100%; gap: 24px; }
  .about__logo { width: min(100%, 360px); height: auto; }
  .about__text { font-size: 15px; line-height: 1.9; }
  .about__text br { display: none; }

  /* offers */
  .offers { padding: 60px 0; }
  .offers__inner { gap: 40px; }
  .offer-cards { gap: 30px; }
  .offer-card { width: 100%; max-width: 424px; height: auto; }
  .offer-card__box { position: relative; top: 0; height: auto; padding: 60px 20px 30px; }
  .offer-card__l1 { font-size: 16px; }
  .offer-card__l2 { font-size: 22px; white-space: normal; }
  .offer-card__num { top: 8px; }
  .offer-card__badge { top: -8px; }
  .offers__note { font-size: 11px; }

  /* time table */
  .tt { padding: 60px 0 60px; }
  .tt .sec-head { margin-bottom: 40px; }
  .tt__dots { top: 900px; }
  .keynote { margin-bottom: 50px; padding: 70px 20px 0; }
  .hero__logos { grid-template-columns: repeat(3, 1fr); }
  .keynote__en { font-size: 34px; top: 14px; right: 12px; opacity: .9; }
  .keynote__title { font-size: 20px; }
  .keynote__name { font-size: 20px; }
  .keynote__pos { font-size: 16px; }
  .keynote__photo { width: 80%; margin-top: -30px; }
  .tt__cards { gap: 30px; max-width: calc(100% - 32px); }
  .pcard__body { padding: 20px; margin-bottom: -20px; }
  .pcard__title { font-size: 20px; }
  .pcard__logo { width: 160px; height: 57px; margin-top: 20px; }
  .pcard__foot { padding-right: 0; }
  .more { width: 48px; height: 48px; }
  .more img { width: 24px; height: 24px; }
  /* 登壇者ブロックを --s3 で縮小 */
  .prf { transform: scale(var(--s3)); transform-origin: top center; margin-bottom: calc(300px * var(--s3) - 300px); }
  .pcard--half .pcard__body { width: calc(100% - 20px); }
  .pcard2col__time { padding-left: 20px; }
  .special { padding: 20px 20px 0; gap: 20px; }
  .special__title { font-size: 20px; }
  .special__name { font-size: 20px; }
  .special__co { font-size: 17px; }
  .special__pos { font-size: 15px; }
  .special__row { flex-direction: column; align-items: flex-start; gap: 16px; }
  .special__logo { width: 180px; height: 72px; }
  .special__visual { width: 260px; height: 293px; }
  .special__visual::before { left: 106px; top: 10px; width: 180px; height: 192px; }
  .special__foot { padding-bottom: 16px; }

  /* sponsor / info / entry */
  .sponsor { height: auto; padding: 40px 16px; background-size: cover; }
  .sponsor__panel { padding: 50px 20px; gap: 40px; }
  .info, .entry { padding: 60px 16px; }
  .info__inner, .entry__inner { gap: 40px; }
  .info__row { grid-template-columns: 1fr; column-gap: 0; }
  .info__row dt { text-align: left; border-bottom: 0; padding-bottom: 0 !important; color: var(--red); }
  .info__row dt br { display: none; }
  .info__row dd { padding-top: 0 !important; }
  .info__row dt, .info__row dd { font-size: 16px; line-height: 1.8; }
  .hs-slot-note { min-height: 320px; }

  /* footer */
  .footer__pp { min-height: 0; padding: 60px 16px; }
  .footer__inner { gap: 40px; }
  .footer__pps { grid-template-columns: repeat(2, 1fr); gap: 20px 10px; font-size: 15px; }
  .footer__podium--1 { width: 100%; left: 0; top: 40%; }
  .footer__org { flex-direction: column; gap: 32px; align-items: center; }
  .footer__org-col { align-items: center; min-width: 0; }
  .footer__copy { height: 90px; }

  /* modal */
  .modal { padding: 50px 20px 30px; max-width: calc(100% - 24px); }
  .modal__title { font-size: 20px; }
  .modal__prf { flex-direction: column-reverse; align-items: center; gap: 24px; }
  .modal__prf-text { width: 100%; }
  .modal__name { font-size: 22px; }
  .modal__logo { width: 180px; height: 47px; }
}



/* ==========================================================
   thanks page（Figmaデザイン無し・LPの部品で構成）
   ========================================================== */
.thanks { min-height: calc(100vh - 80px - 131px); padding: 120px 20px; background: var(--bg); display: flex; align-items: center; justify-content: center; }
.thanks__inner { display: flex; flex-direction: column; align-items: center; gap: 40px; text-align: center; }
.thanks__lead { font-weight: 700; font-size: 18px; line-height: 2; letter-spacing: .54px; }
.thanks__btn { width: 500px; max-width: 100%; }
.sp-br { display: none; }
@media (max-width: 767px) {
  .thanks { min-height: calc(100vh - 60px - 90px); padding: 60px 16px; }
  .thanks__lead { font-size: 15px; line-height: 1.9; }
  .sp-br { display: block; }
}