:root {
  --header-height: 66px;
  --content-width: 960px;
  --section-boundary-width: 1200px;
  --section-side-space: 40px;
  --nav-blue: #242b79;
  --keio-blue: #00377e;
  --keio-pink: #c8006b;
  --color-navy: #222973;
  --color-blue-dark: #005c8c;
  --color-blue-accent: #0f64c5;
  --color-mint: #ccfff0;
  --color-light-blue: #b8f8ff;
  --color-section-blue: #2780e6;
  --color-gray-line: #707070;
  --color-text: #272727;
  --color-yellow: #ffe16e;
  --color-green-line: #72e591;
  --color-shadow-blue: #00138c;
  --space: #070518;
  --space-deep: #03020d;
}

/* ===================== Base / Reset ===================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  overflow-x: clip;
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  background: var(--space);
  color: #222;
  font-family: "Noto Sans JP", "Noto Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
}

body.is-menu-open {
  overflow: hidden;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

ruby {
  ruby-position: over;
}

rt {
  font-size: 8px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0;
  color: inherit;
}

[id] {
  scroll-margin-top: calc(var(--header-height) + 12px);
}

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

/* ===================== Header ===================== */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-height);
  background: #fff;
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.04);
}

.site-header__inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(12px, 1.3vw, 24px);
  width: min(calc(100% - 40px), 1368px);
  height: 100%;
  margin-inline: auto;
}

.site-header__brand {
  flex: 0 0 auto;
}

.site-header__logo {
  width: min(26vw, 294px);
}

.primary-nav {
  flex: 1 1 auto;
  min-width: 0;
  --nav-nudge: 0.16em;
}

.primary-nav__list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(12px, 1.35vw, 26px);
  padding: 0;
  margin: 0;
  list-style: none;
}

.primary-nav a,
.mobile-nav a {
  color: var(--nav-blue);
  font-size: 16px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0;
  white-space: nowrap;
}

.primary-nav a {
  display: inline-block;
  position: relative;
  min-height: 46px;
  padding: 14px 0 10px;
  transform: translateY(var(--nav-nudge));
  transition: opacity 160ms ease;
}

.primary-nav ruby,
.mobile-nav ruby {
  ruby-align: center;
  vertical-align: baseline;
}

.primary-nav rt,
.mobile-nav rt {
  font-size: 8px;
  line-height: 1;
}

.primary-nav a:hover,
.primary-nav a:focus-visible {
  opacity: 0.72;
}

.site-header__entry {
  flex: 0 0 auto;
  width: min(19.5vw, 232px);
}

/* ===================== Buttons ===================== */
.image-button {
  display: inline-block;
  position: relative;
}

.image-button img {
  display: block;
  height: auto;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
  transform-origin: 50% 50%;
  will-change: transform;
}

.image-button:hover img {
  transform: translateY(2px) scale(0.98);
}

.image-button:active img {
  transform: translateY(3px) scale(0.96);
}

.image-button:focus-visible {
  outline: 3px solid #84fc64;
  outline-offset: 4px;
}

.image-button[aria-disabled="true"] {
  cursor: default;
}

/* ===================== Shared Rules ===================== */
/* 破線見出しは他セクションでも再利用するため、色や間隔をCSS変数で上書きできる形にする。 */
.dash-rule {
  --dash-color: var(--color-gray-line);
  --dash-size: 4px;
  --dash-length: 4px;
  --dash-gap: 5px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: clamp(18px, 3vw, 28px);
  width: 100%;
  margin: 0;
  color: var(--keio-blue);
  font-size: 24px;
  font-weight: 700;
  line-height: 34px;
  letter-spacing: 0;
  text-align: center;
}

.dash-rule::before,
.dash-rule::after {
  content: "";
  display: block;
  height: var(--dash-size);
  background-image: repeating-linear-gradient(90deg,
      var(--dash-color) 0 var(--dash-length),
      transparent var(--dash-length) calc(var(--dash-length) + var(--dash-gap)));
}

/* ===================== Mobile menu ===================== */
.menu-toggle {
  display: none;
  position: relative;
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 0;
  background: transparent;
}

.menu-toggle span {
  position: absolute;
  left: 7px;
  width: 28px;
  height: 3px;
  border-radius: 999px;
  background: var(--nav-blue);
  transition: transform 180ms ease, opacity 180ms ease, top 180ms ease;
}

.menu-toggle span:nth-child(1) {
  top: 12px;
}

.menu-toggle span:nth-child(2) {
  top: 20px;
}

.menu-toggle span:nth-child(3) {
  top: 28px;
}

.menu-toggle.is-open span:nth-child(1) {
  top: 20px;
  transform: rotate(45deg);
}

.menu-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-open span:nth-child(3) {
  top: 20px;
  transform: rotate(-45deg);
}

.menu-scrim {
  position: fixed;
  inset: var(--header-height) 0 0;
  z-index: 80;
  background: rgba(5, 7, 24, 0.48);
}

.mobile-nav {
  position: fixed;
  top: var(--header-height);
  right: 0;
  z-index: 90;
  width: min(82vw, 360px);
  padding: 32px 24px 40px;
  text-align: center;
  background: #fff;
  box-shadow: -12px 16px 40px rgba(0, 0, 0, 0.16);
}

.mobile-nav__list {
  display: grid;
  justify-items: center;
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.mobile-nav__entry {
  width: min(100%, 270px);
  margin: 22px auto 0;
}

main {
  /* FV背景は固定ヘッダーの背面まで敷く。前面要素側でヘッダー下の余白を取る。 */
  padding-top: 0;
}

/* ===================== FV ===================== */
/* 背景は画像レイヤーで構成。CSSでは色や段差を作らず、配置と重なり順だけ制御する。 */
.fv {
  position: relative;
  z-index: 1;
  isolation: isolate;
  --fv-bg-height: 54.667vw;
  height: var(--fv-bg-height);
  overflow: visible;
  background: var(--space-deep);
}

.fv__background,
.fv__bg {
  position: absolute;
  inset: 0;
}

.fv__background {
  z-index: auto;
  overflow: hidden;
}

.fv__bg {
  width: 100%;
  height: auto;
  max-width: none;
  object-fit: contain;
  object-position: top center;
  pointer-events: none;
}

/* 星空はFVの下端から見えるため、高さ不足が出ないようcoverで敷く。 */
.fv__bg--stars {
  z-index: 0;
  min-height: 100%;
  object-fit: cover;
}

/* 統合済みFV背景。青い段状パネルと四角い装飾はこの画像内の表現を使う。 */
.fv__bg--scene {
  z-index: 2;
}

/* 前面FV画像は960pxを上限に中央配置。背景だけヘッダー背面に回すため、前面はヘッダー下37pxに戻す。 */
.fv__inner {
  position: relative;
  z-index: 3;
  width: min(calc(100% - 240px), var(--content-width));
  height: 100%;
  padding-top: calc(var(--header-height) + min(3.083vw, 37px));
  margin-inline: auto;
}

.fv__parts {
  width: 100%;
  margin: 0 auto;
}

.fv__entry {
  position: absolute;
  left: 50%;
  top: min(47.917vw, 575px);
  z-index: 4;
  /* CTAはデザイン案の443.8x81pxを基準に、下の突出部を覆う位置へかぶせる。 */
  width: min(36.983vw, 443.8px);
  height: min(6.75vw, 81px);
  transform: translateX(-50%);
}

.fv__entry img {
  width: 100%;
  height: 100%;
}

/* ===================== Present ===================== */
/* 背景はセクション専用の星空素材を使用。FV CTA下から見出しまでデザイン案基準の余白を取る。 */
.present {
  position: relative;
  z-index: 0;
  overflow: hidden;
  padding: clamp(80px, 12.5vw, 150px) 0 clamp(110px, 12vw, 144px);
  margin-top: clamp(-78px, -6.5vw, -42px);
  color: #fff;
  background:
    url("../assets/2026/present/present-background.png") center top / 100% auto repeat-y,
    var(--space-deep);
}

.present__inner {
  position: relative;
  width: min(var(--content-width), calc(100% - 48px));
  margin-inline: auto;
}

.present__lead {
  display: grid;
  grid-template-columns: 132px 1fr;
  align-items: center;
  gap: 28px;
}

.present__gift {
  position: relative;
  top: -20px;
  left: clamp(-12px, calc(490px - 41.8vw), 72px);
  width: 66px;
  justify-self: end;
  transform: rotate(-15deg);
}

/* 見出しはデザイン案に合わせた3層構造。全レイヤーを同じgrid上に重ねる。 */
.present-heading {
  display: grid;
  width: min(100%, 800px);
  margin-inline: auto 0;
  isolation: isolate;
}

.present-heading__layer {
  grid-area: 1 / 1;
  margin: 0;
  font-size: clamp(24px, 3.333vw, 40px);
  font-weight: 900;
  line-height: 1.6;
  letter-spacing: 0;
  text-align: right;
  white-space: nowrap;
}

.present-heading__line {
  display: block;
}

.present-heading__sp-break {
  display: inline;
}

.present-heading__layer--shadow {
  z-index: 0;
  color: var(--color-blue-dark);
  -webkit-text-stroke: 2px #000;
  paint-order: stroke fill;
  filter: blur(2px);
  transform: translateY(10px);
}

.present-heading__layer--outline {
  z-index: 1;
  color: #242b79;
  text-shadow:
    0 -3px 0 #242b79,
    1.15px -2.77px 0 #242b79,
    2.12px -2.12px 0 #242b79,
    2.77px -1.15px 0 #242b79,
    3px 0 0 #242b79,
    2.77px 1.15px 0 #242b79,
    2.12px 2.12px 0 #242b79,
    1.15px 2.77px 0 #242b79,
    0 3px 0 #242b79,
    -1.15px 2.77px 0 #242b79,
    -2.12px 2.12px 0 #242b79,
    -2.77px 1.15px 0 #242b79,
    -3px 0 0 #242b79,
    -2.77px -1.15px 0 #242b79,
    -2.12px -2.12px 0 #242b79,
    -1.15px -2.77px 0 #242b79;
}

.present-heading__layer--front {
  z-index: 2;
  color: transparent;
  background: linear-gradient(90deg, #fbff83 0%, #e5f4fd 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.present__body {
  display: grid;
  grid-template-columns: minmax(240px, 330px) minmax(0, 1fr);
  align-items: center;
  gap: clamp(36px, 4vw, 52px);
  margin-top: 28px;
}

.present-carousel {
  display: grid;
  grid-template-areas:
    "stage"
    "caption";
  grid-template-rows: 220px auto;
  align-content: start;
  gap: 32px;
  height: 300px;
}

.present-carousel__arrow {
  padding: 0;
  border: 0;
  background: transparent;
}

.present-carousel__arrow--prev {
  grid-area: auto;
}

.present-carousel__arrow--next {
  grid-area: auto;
}

.present-carousel__arrow img {
  width: 20px;
}

.present-carousel__stage {
  grid-area: stage;
  display: grid;
  place-items: start center;
  height: 220px;
}

.present-carousel__image {
  max-width: 100%;
  max-height: 210px;
  object-fit: contain;
  transition: opacity 0.3s ease-out;
}

.present-carousel.is-changing .present-carousel__image,
.present-carousel.is-changing .present-carousel__name {
  opacity: 0;
}

.present-carousel__caption {
  grid-area: caption;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(20px, 2.333vw, 28px);
  margin: 0;
}

.present-carousel__name {
  display: inline-block;
  flex: 0 1 auto;
  color: #ffef91;
  font-size: 24px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.06em;
  text-align: center;
  white-space: nowrap;
  transition: opacity 0.3s ease-out;
}

.present-carousel__name--compact {
  width: 228px;
  font-size: 20px;
  line-height: 1.18;
  white-space: normal;
}

.present__copy {
  display: grid;
  gap: 12px;
  justify-items: end;
  margin: 0;
  font-size: 20px;
  font-weight: 500;
  line-height: 1.9;
  letter-spacing: 0;
  text-align: right;
  white-space: nowrap;
}

.present__copy span {
  display: block;
}

.present__copy .present__copy-sp {
  display: none;
}

.present__award {
  position: relative;
  display: block;
  min-height: 224px;
  margin-top: 58px;
}

.present-award-heading {
  position: relative;
  display: block;
  width: 720px;
  min-height: 156px;
  min-width: 0;
}

.present-award-heading__badge {
  position: absolute;
  top: 2px;
  left: 0;
  width: 210px;
}

/* 応募者全員見出しも影付き3層。badge画像とは別に文字だけを重ねる。 */
.present02-heading {
  position: relative;
  display: block;
  width: 100%;
  min-width: 0;
  height: 132px;
  margin-top: 0;
  isolation: isolate;
}

.present02-heading__layer {
  position: absolute;
  inset: 0;
  padding-top: 14px;
  margin: 0;
  font-size: 37.72px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0;
  text-align: left;
  white-space: nowrap;
}

.present02-heading__line {
  display: block;
}

.present02-heading__line:first-child {
  margin-left: 230px;
  font-size: 32px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.present02-heading__line:nth-child(2) {
  margin-top: 42px;
}

.present02-heading__line:nth-child(2) span {
  display: inline-block;
}

.present02-heading__line:nth-child(2) span:nth-child(2),
.present02-heading__line:nth-child(2) span:nth-child(4) {
  font-size: 28px;
}

.present02-heading__layer--shadow {
  z-index: 0;
  color: rgba(27, 33, 92, 0.9);
  -webkit-text-stroke: 1.5px #268dc3;
  filter: blur(2.5px);
  opacity: 0.95;
  transform: translateY(25px);
}

.present02-heading__layer--outline {
  z-index: 1;
  color: var(--color-navy);
  text-shadow:
    0 -3px 0 var(--color-navy),
    1px -3px 0 var(--color-navy),
    2px -2px 0 var(--color-navy),
    3px -1px 0 var(--color-navy),
    3px 0 0 var(--color-navy),
    3px 1px 0 var(--color-navy),
    2px 2px 0 var(--color-navy),
    1px 3px 0 var(--color-navy),
    0 3px 0 var(--color-navy),
    -1px 3px 0 var(--color-navy),
    -2px 2px 0 var(--color-navy),
    -3px 1px 0 var(--color-navy),
    -3px 0 0 var(--color-navy),
    -3px -1px 0 var(--color-navy),
    -2px -2px 0 var(--color-navy),
    -1px -3px 0 var(--color-navy);
}

.present02-heading__layer--front {
  z-index: 2;
  color: transparent;
  background: linear-gradient(90deg, #faff85 0%, #e5f4fc 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.present__award-images {
  position: absolute;
  top: -24px;
  right: 0;
  width: 360px;
  min-height: 214px;
}

.present__certificate {
  width: 177.35px;
  margin-left: 66px;
  transform: rotate(6.17deg);
}

.present__slim {
  position: absolute;
  right: 0;
  top: 112px;
  width: 170px;
  height: auto;
}

/* ===================== Theme ===================== */
/* テーマ詳細は2025の「見出しを枠にかぶせる」構造を引き継ぎ、今年度の星空背景と白枠で構成する。 */
.theme {
  position: relative;
  z-index: auto;
  overflow: visible;
  padding: 34px 0 115px;
  color: #000;
  background:
    url("../assets/2026/theme/theme-background.png") center top / 100% auto repeat-y,
    var(--space-deep);
}

/* 横長装飾は透過PNGを切らずに重ね、ギザギザの境界をそのまま使う。 */
.theme::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -114px;
  z-index: 1;
  height: 115px;
  pointer-events: none;
  background: url("../assets/2026/theme/theme-background-decoration.png") center top / var(--section-boundary-width) auto repeat-x;
}

.theme__inner {
  position: relative;
  z-index: 2;
  width: min(900px, calc(100% - 80px));
  margin-inline: auto;
}

.theme__title {
  position: relative;
  z-index: 3;
  width: min(606px, 76vw);
  margin: 0 auto -66px;
}

.theme__panel {
  position: relative;
  z-index: 2;
  width: 100%;
  min-height: 1121px;
  padding: 70px 54px 48px;
  background: #fff;
  /* 青い枠線そのものに影が付くよう、outlineではなくborderでフレーム化する。 */
  border: 9px solid var(--color-blue-dark);
  box-shadow: 0 20px 4px rgba(0, 0, 0, 0.25);
}

.theme__block {
  position: relative;
  z-index: 2;
}

.theme__block+.theme__block {
  margin-top: 52px;
}

.theme__block-title {
  color: var(--color-blue-dark);
  --dash-color: var(--color-gray-line);
  --dash-size: 4px;
  --dash-length: 4px;
  --dash-gap: 5px;
}

.theme-departments {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
  margin-top: 24px;
}

.theme-department {
  min-width: 0;
}

.theme-department__title {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 8px;
  margin: 0 0 14px;
  color: var(--color-navy);
  font-size: 36px;
  font-weight: 800;
  line-height: 34px;
  letter-spacing: 0.05em;
}

.theme-department__title img {
  width: 70px;
  margin-bottom: 2px;
}

.theme-department__title ruby {
  ruby-align: center;
}

.theme-department__title rt {
  font-size: 12px;
  font-weight: 700;
  line-height: 10px;
  letter-spacing: 0.05em;
  color: var(--color-navy);
}

.theme-department__lead {
  display: grid;
  place-items: center;
  min-height: 37px;
  margin: 0 0 18px;
  padding: 6px 10px;
  color: var(--color-navy);
  font-size: 18px;
  font-weight: 700;
  line-height: 24px;
  letter-spacing: 0;
  text-align: center;
  background: linear-gradient(90deg, #d9f1ff 0%, #d2ffef 100%);
}

.theme-department__text,
.theme-department__condition {
  margin: 0;
  font-size: 16px;
  font-weight: 400;
  line-height: 24px;
  letter-spacing: 0;
}

.theme-department__text {
  width: min(100%, 354px);
  min-height: 96px;
  margin-inline: auto;
}

.theme-department__condition {
  width: min(100%, 354px);
  margin-top: 34px;
  margin-inline: auto;
}

.theme-department__condition strong,
.theme-department__condition span {
  display: block;
}

.theme-department__condition strong {
  margin-bottom: 4px;
  color: var(--color-blue-dark);
  font-weight: 700;
}

.theme-qualification {
  display: grid;
  gap: 5px;
  width: min(100%, 724px);
  padding: 0;
  margin: 24px auto 0;
  list-style: none;
}

.theme-qualification li {
  padding: 9px 20px 10px;
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  line-height: 28px;
  letter-spacing: 0.04em;
  background: var(--keio-blue);
}

.theme__note {
  width: min(100%, 724px);
  margin: 18px auto 0;
  color: var(--keio-blue);
  font-size: 16px;
  font-weight: 500;
  line-height: 34px;
  letter-spacing: 0.08em;
}

.theme__block--entry {
  display: grid;
  justify-items: center;
}

.theme__entry {
  width: 443.8px;
  height: 81px;
  margin-top: 24px;
}

.theme__entry img {
  width: 100%;
  height: 100%;
}

.theme__astronaut {
  position: absolute;
  right: -74px;
  top: 332px;
  z-index: 1;
  width: 144px;
  transform: rotate(1.9deg);
}

.theme__crown {
  position: absolute;
  left: -58px;
  bottom: 34px;
  z-index: 4;
  width: 112px;
}

/* ===================== World ===================== */
/* 配布ワールド専用背景を重ね、上端には透過PNGの境界装飾をそのまま使う。 */
.world {
  --section-boundary-overlap: 115px;
  position: relative;
  z-index: 1;
  overflow: visible;
  margin-top: -115px;
  padding: 112px 0 135px;
  color: #fff;
  background: transparent;
}

.world::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: calc(var(--section-boundary-overlap) - 1px);
  bottom: 0;
  z-index: 0;
  pointer-events: none;
  background:
    url("../assets/2026/world/world-background.png") center top / 100% auto repeat-y,
    #140a58;
}

.world::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  z-index: 1;
  height: 115px;
  pointer-events: none;
  background: url("../assets/2026/world/world-background-decoration.png") center top / var(--section-boundary-width) auto repeat-x;
}

.world__inner {
  position: relative;
  z-index: 2;
  width: min(var(--content-width), calc(100% - 80px));
  margin-inline: auto;
  text-align: center;
}

.world__title {
  position: relative;
  z-index: 2;
  width: min(924.5px, 100%);
  margin: 0 auto 32px;
}

.world__content {
  position: relative;
  z-index: 2;
  width: min(100%, 900px);
  margin-inline: auto;
}

.world__visual-frame {
  width: min(900px, 100%);
  padding: 9px;
  margin: 0 auto 26px;
  box-sizing: border-box;
  overflow: hidden;
  background: linear-gradient(90deg, #68c3d1 0%, #84fc64 100%);
  box-shadow: 0 4px 4px rgba(0, 0, 0, 0.25);
}

.world__visual-image {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  object-position: center;
}

.world__lead-title {
  margin: 0 0 4px;
  padding-bottom: 4px;
  font-size: 36px;
  font-weight: 800;
  line-height: 40px;
  letter-spacing: 0;
  background: linear-gradient(90deg, #68c3d1 0%, #84fc64 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.world__lead-title--warp {
  margin-top: 34px;
}

.world__info {
  position: relative;
  isolation: isolate;
  width: min(900px, 100%);
  min-height: 75px;
  padding: 18px 64px;
  color: #fff;
  text-align: left;
  background: transparent;
  --world-info-bleed: max(0px, calc((100vw - 900px) / 2));
}

.world__info::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  z-index: -1;
}

.world__info--moon {
  border-radius: 999px 0 0 999px;
}

.world__info--moon::before {
  left: 0;
  width: calc(100% + var(--world-info-bleed));
  background: linear-gradient(90deg, #006f8e 0%, rgba(132, 252, 100, 0) 100%);
  border-radius: 999px 0 0 999px;
}

.world__info--warp {
  position: relative;
  padding-right: 150px;
  border-radius: 0 999px 999px 0;
}

.world__info--warp::before {
  left: calc(var(--world-info-bleed) * -1);
  width: calc(100vw - 218px);
  background: linear-gradient(90deg, rgba(132, 252, 100, 0) 0%, #006f8e 100%);
  border-radius: 0 999px 999px 0;
}

.world__info p {
  margin: 0;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  line-height: 28px;
  letter-spacing: 0;
}

.world__planet {
  position: absolute;
  right: calc((var(--world-info-bleed) * -1) + 10px);
  top: 50%;
  z-index: 1;
  width: 198.5px;
  pointer-events: none;
  transform: translateY(-50%);
}

.world__downloads {
  margin-top: 46px;
}

.world__download-title {
  margin: 18px 0 0;
  color: var(--color-mint);
  font-size: 28px;
  font-weight: 800;
  line-height: 34px;
  letter-spacing: 0;
}

.world__version-heading {
  width: min(900px, 100%);
  margin: 20px auto 4px;
  color: #cbfff0;
  font-size: 16px;
  font-weight: 700;
  line-height: 28px;
  text-align: left;
}

.world__version {
  display: grid;
  grid-template-columns: 160px 1fr;
  width: min(900px, 100%);
  margin: 0 auto;
  border: 2px solid var(--color-green-line);
  color: #cbfff0;
  text-align: left;
}

.world__version-label,
.world__version-text {
  display: block;
  padding: 3px 16px;
  font-size: 16px;
  line-height: 28px;
}

.world__version-label {
  font-weight: 700;
  border-right: 2px solid var(--color-green-line);
}

.world__version-text {
  font-weight: 500;
  letter-spacing: 0.08em;
}

.world__buttons {
  display: flex;
  justify-content: center;
  gap: 36px;
}

.world__button {
  width: min(416px, calc((100% - 36px) / 2));
}

.world__button img {
  width: 100%;
}

.world__switch-guide {
  margin: 18px 0 0;
  color: var(--color-mint);
  font-size: clamp(14px, 1.33vw, 16px);
  font-weight: 800;
  line-height: 28px;
  text-align: center;
}

.world__download-title a,
.world__switch-guide a {
  text-decoration: underline;
  text-decoration-color: currentColor;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.world__free {
  width: min(900px, 100%);
  margin: 66px auto 0;
  padding: 24px 38px 26px;
  text-align: left;
  background: linear-gradient(90deg, var(--color-blue-dark) 0%, #29b079 100%);
}

.world__free-title {
  margin: 0 0 8px;
  color: #fff;
  font-size: 20px;
  font-weight: 900;
  line-height: 24px;
  letter-spacing: -0.03em;
}

.world__free-text {
  margin: 0;
  color: #fff;
  font-size: 16px;
  font-weight: 400;
  line-height: 24px;
  letter-spacing: -0.03em;
}

/* ===================== Ceremony ===================== */
/* 白い本体枠の外側に装飾を置けるよう、枠と装飾を同じ基準位置で重ねる。 */
.ceremony {
  --section-boundary-overlap: 115px;
  position: relative;
  z-index: 1;
  overflow: visible;
  margin-top: -115px;
  padding: 112px 0 128px;
  color: var(--color-blue-dark);
  background: transparent;
}

.ceremony::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: calc(var(--section-boundary-overlap) - 1px);
  bottom: 0;
  z-index: 0;
  pointer-events: none;
  background:
    url("../assets/2026/ceremony/ceremony-background.png") center top / 100% auto repeat-y,
    #120a63;
}

.ceremony::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  z-index: 1;
  height: 115px;
  pointer-events: none;
  background: url("../assets/2026/ceremony/ceremony-background-decoration.png") center top / var(--section-boundary-width) auto repeat-x;
}

.ceremony__inner {
  position: relative;
  z-index: 2;
  width: min(var(--content-width), calc(100% - 80px));
  margin-inline: auto;
}

.ceremony__shell {
  position: relative;
  width: min(900px, 100%);
  margin-inline: auto;
}

.ceremony__title {
  position: relative;
  z-index: 4;
  width: min(722.5px, 82vw);
  margin: 0 auto -58px;
  transform: translateY(28px);
}

.ceremony__panel {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 58px 54px 58px;
  background: #fff;
  border: 9px solid var(--color-blue-dark);
  box-shadow: 0 20px 4px rgba(0, 0, 0, 0.25);
}

.ceremony__rocket,
.ceremony__astronaut {
  position: absolute;
  pointer-events: none;
}

.ceremony__rocket {
  z-index: 5;
  right: -126px;
  top: 154px;
  width: 318px;
}

.ceremony__astronaut {
  z-index: 3;
  left: -56px;
  bottom: 490px;
  width: 132px;
  transform: rotate(-12deg);
}

.ceremony__block+.ceremony__block {
  margin-top: 34px;
}

.ceremony__block-title {
  color: var(--color-blue-dark);
  --dash-color: var(--color-gray-line);
  --dash-size: 4px;
  --dash-length: 4px;
  --dash-gap: 5px;
}

.ceremony__date,
.ceremony__place {
  margin: 20px 0 0;
  color: var(--color-blue-dark);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: 0.04em;
  text-align: center;
}

.ceremony__date {
  font-size: 36px;
}

.ceremony__date-note {
  margin: 18px 0 0;
  color: var(--color-blue-dark);
  font-size: 16px;
  font-weight: 500;
  line-height: 28px;
  text-align: center;
}

.ceremony__date-num {
  font-size: 40px;
}

.ceremony__place {
  font-size: 36px;
}

.ceremony-prizes {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px 38px;
  padding: 0;
  margin: 24px auto 0;
  list-style: none;
  color: var(--color-blue-dark);
  font-size: 26px;
  font-weight: 800;
  line-height: 1.45;
  letter-spacing: 0.02em;
}

.ceremony-prizes li {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.ceremony-prizes li:nth-child(3) {
  flex-basis: 100%;
  justify-content: center;
}

.ceremony-prizes img {
  width: 32px;
  flex: 0 0 auto;
}

.ceremony-guests {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
  margin-top: 42px;
}

.ceremony-guest {
  position: relative;
  padding: 48px 24px 28px;
  color: var(--color-blue-dark);
  background: #d9fbff;
  border: 7px solid #006dc5;
  box-shadow: 2px 4px 16px 0 rgba(0, 0, 0, 0.345);
}

.ceremony-guest__label {
  position: absolute;
  left: 50%;
  top: -28px;
  display: block;
  width: min(271px, 82%);
  margin: 0;
  transform: translateX(-50%);
}

.ceremony-guest__label img {
  width: 100%;
}

.ceremony-guest__image-wrap {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #fff;
}

.ceremony-guest__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.ceremony-guest__role {
  margin: 22px 0 0;
  font-size: 20px;
  font-weight: 800;
  line-height: 1.55;
}

.ceremony-guest__name {
  margin: 10px 0 18px;
  padding-bottom: 16px;
  font-size: 40px;
  font-weight: 800;
  line-height: 1.15;
  border-bottom: 4px dotted var(--color-gray-line);
}

.ceremony-guest__desc {
  margin: 0;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.75;
}

/* ===================== Movie ===================== */
.movie {
  --section-boundary-overlap: 115px;
  position: relative;
  z-index: 1;
  overflow: visible;
  margin-top: -115px;
  padding: 112px 0 184px;
  background: transparent;
}

.movie::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: calc(var(--section-boundary-overlap) - 1px);
  bottom: 0;
  z-index: 0;
  pointer-events: none;
  background:
    url("../assets/2026/movie/movie-background.png") center top / 100% auto repeat-y,
    #1742b3;
}

.movie::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  z-index: 1;
  height: 115px;
  pointer-events: none;
  background: url("../assets/2026/movie/movie-background-decoration.png") center top / var(--section-boundary-width) auto repeat-x;
}

.movie__inner {
  position: relative;
  z-index: 2;
  width: min(var(--content-width), calc(100% - 240px));
  margin-inline: auto;
}

.movie__shell {
  position: relative;
  width: 100%;
  margin-inline: auto;
  padding-top: 52px;
  transform: translateY(-36px);
}

.movie__title {
  position: relative;
  z-index: 4;
  display: block;
  width: min(676px, 88vw);
  margin: 0;
  transform: translateY(24px);
}

.movie__frame {
  position: relative;
  z-index: 2;
  width: min(870px, 100%);
  padding: 11px;
  margin-left: 0;
  background: transparent;
  box-shadow: 0 14px 14px rgba(0, 0, 0, 0.24);
}

.movie__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: #51bcff;
  pointer-events: none;
}

.movie__frame-layer {
  position: absolute;
  pointer-events: none;
}

.movie__frame-layer--01 {
  inset: -30px -30px 30px 30px;
  z-index: -1;
  background: #3a72ff;
}

.movie__frame-layer--02 {
  inset: -60px -60px 60px 60px;
  z-index: -2;
  background: #1a52e3;
}

.movie__frame-layer--03 {
  inset: -90px -90px 90px 90px;
  z-index: -3;
  background: #0f30b4;
}

.movie__video {
  position: relative;
  z-index: 1;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #ccc;
}

.movie__video video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #000;
}

.movie__shooting-star {
  position: absolute;
  z-index: 3;
  display: block;
  pointer-events: none;
}

.movie__shooting-star--01 {
  right: -74px;
  bottom: -74px;
  width: min(326px, 36vw);
}

.movie__shooting-star--02 {
  right: 56px;
  bottom: -160px;
  width: min(318px, 35vw);
}

/* ===================== Trial ===================== */
.trial {
  --section-boundary-overlap: 115px;
  position: relative;
  z-index: 2;
  overflow: visible;
  margin-top: -115px;
  padding: 112px 0 118px;
  color: #fff;
  background: transparent;
}

.trial::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: var(--section-boundary-overlap);
  bottom: 0;
  z-index: 0;
  pointer-events: none;
  background:
    url("../assets/2026/trial/trial-background.png") center top / 100% auto repeat-y,
    var(--color-section-blue);
}

.trial::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  z-index: 1;
  height: var(--section-boundary-overlap);
  pointer-events: none;
  background: url("../assets/2026/trial/trial-background-decoration.png") center top / var(--section-boundary-width) 130px repeat-x;
}

.trial__inner {
  position: relative;
  z-index: 2;
  width: min(var(--content-width), calc(100% - 80px));
  margin-inline: auto;
}

.trial__entry-boundary {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  z-index: 3;
  height: 115px;
  pointer-events: none;
  background: url("../assets/2026/entry/entry-background-decoration.png") center top / var(--section-boundary-width) auto repeat-x;
}

.trial__message-stack {
  display: grid;
  isolation: isolate;
  margin: 44px 0 56px;
}

.trial__message,
.trial__message-shadow {
  grid-area: 1 / 1;
  width: 100%;
  margin: 0;
  font-size: 42px;
  font-weight: 900;
  line-height: 2.002;
  letter-spacing: -0.04em;
  text-align: center;
}

.trial__message {
  position: relative;
  z-index: 2;
  color: var(--color-mint);
  -webkit-text-fill-color: var(--color-mint);
  -webkit-text-stroke: 0 transparent;
  text-shadow:
    0 -0.112em 0 var(--color-navy),
    0.043em -0.103em 0 var(--color-navy),
    0.079em -0.079em 0 var(--color-navy),
    0.103em -0.043em 0 var(--color-navy),
    0.112em 0 0 var(--color-navy),
    0.103em 0.043em 0 var(--color-navy),
    0.079em 0.079em 0 var(--color-navy),
    0.043em 0.103em 0 var(--color-navy),
    0 0.112em 0 var(--color-navy),
    -0.043em 0.103em 0 var(--color-navy),
    -0.079em 0.079em 0 var(--color-navy),
    -0.103em 0.043em 0 var(--color-navy),
    -0.112em 0 0 var(--color-navy),
    -0.103em -0.043em 0 var(--color-navy),
    -0.079em -0.079em 0 var(--color-navy),
    -0.043em -0.103em 0 var(--color-navy);
}

.trial__message-shadow {
  z-index: 1;
  color: var(--color-shadow-blue);
  -webkit-text-fill-color: var(--color-shadow-blue);
  -webkit-text-stroke: 0 transparent;
  paint-order: stroke fill;
  filter: blur(0.13em);
  transform: translateY(0.556em);
}

.trial__message-shadow .trial__message-accent {
  color: inherit;
  -webkit-text-fill-color: inherit;
}

.trial__message-accent {
  color: #9bf4b2;
  -webkit-text-fill-color: #9bf4b2;
  -webkit-text-stroke: 0 transparent;
}

.trial__message ruby,
.trial__message-shadow ruby {
  ruby-align: center;
  ruby-position: over;
}

.trial__message rt,
.trial__message-shadow rt {
  color: var(--color-mint);
  font-size: 0.46em;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0;
  word-spacing: 0;
  text-align: center;
  text-indent: 0;
  white-space: nowrap;
}

.trial__message-shadow rt {
  color: var(--color-shadow-blue);
  -webkit-text-fill-color: var(--color-shadow-blue);
  -webkit-text-stroke: 0 transparent;
  paint-order: stroke fill;
}

.trial__message rt {
  -webkit-text-stroke: 0 transparent;
  text-shadow:
    0 -0.13em 0 var(--color-navy),
    0.05em -0.12em 0 var(--color-navy),
    0.092em -0.092em 0 var(--color-navy),
    0.12em -0.05em 0 var(--color-navy),
    0.13em 0 0 var(--color-navy),
    0.12em 0.05em 0 var(--color-navy),
    0.092em 0.092em 0 var(--color-navy),
    0.05em 0.12em 0 var(--color-navy),
    0 0.13em 0 var(--color-navy),
    -0.05em 0.12em 0 var(--color-navy),
    -0.092em 0.092em 0 var(--color-navy),
    -0.12em 0.05em 0 var(--color-navy),
    -0.13em 0 0 var(--color-navy),
    -0.12em -0.05em 0 var(--color-navy),
    -0.092em -0.092em 0 var(--color-navy),
    -0.05em -0.12em 0 var(--color-navy);
}

.trial__message-accent rt {
  color: #9bf4b2;
  -webkit-text-fill-color: #9bf4b2;
}

.trial__content {
  position: relative;
}

.trial__schedule {
  display: grid;
  grid-template-columns: 290px minmax(0, 1fr);
  align-items: center;
  gap: 44px;
  width: calc(50vw + 50%);
  min-height: 311px;
  padding: 42px 72px;
  margin-left: 0;
  border-radius: 156px 0 0 156px;
  background: linear-gradient(-190deg, var(--color-blue-dark) 0%, #29b079 100%);
}

.trial__schedule-heading {
  font-size: 26px;
  font-weight: 800;
  line-height: 1.45;
}

.trial__schedule-heading p {
  margin: 0;
}

.trial__free {
  color: var(--color-yellow);
  font-size: 28px;
}

.trial__schedule-heading p:nth-child(2) {
  font-size: 28px;
}

.trial__schedule-heading p:nth-child(3) {
  font-size: 34.56px;
}

.trial__dates {
  padding: 0;
  margin: 0;
  list-style: none;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.58;
}

.trial__dates li {
  margin: 0;
}

.trial__dates .trial__date-with-note {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  column-gap: 0.25em;
}

.trial__dates .trial__date-note {
  grid-column: 2;
}

.trial__beginner-mark,
.trial__planet {
  position: absolute;
  z-index: 2;
  pointer-events: none;
}

.trial__beginner-mark {
  right: 0;
  top: -66px;
  width: 94px;
}

.trial__planet {
  left: -40px;
  bottom: 52px;
  width: 175px;
}

.trial__entry {
  position: relative;
  z-index: 3;
  display: block;
  width: 414.5px;
  max-width: 80%;
  margin: 40px auto 0;
}

.trial__entry img {
  display: block;
  width: 100%;
  height: auto;
}

.trial__note {
  margin: 42px 0 0;
  color: var(--color-yellow);
  font-size: 16px;
  font-weight: 800;
  line-height: 26px;
  text-align: center;
}

.trial__note+.trial__note {
  margin-top: 4px;
}

/* ===================== Entry ===================== */
.entry {
  --section-boundary-overlap: 115px;
  position: relative;
  z-index: 1;
  overflow: visible;
  margin-top: -115px;
  padding: 124px 0 132px;
  color: #fff;
  background: transparent;
}

.entry::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: calc(var(--section-boundary-overlap) - 1px);
  bottom: 0;
  z-index: 0;
  pointer-events: none;
  background:
    url("../assets/2026/entry/entry-background.png") center top / 100% auto repeat-y,
    var(--color-section-blue);
}

.entry::before {
  content: none;
}

.entry__inner {
  position: relative;
  z-index: 2;
  width: min(var(--content-width), calc(100% - 80px));
  margin-inline: auto;
}

.entry__title {
  width: min(660px, 100%);
  margin: 38px auto 54px;
}

.entry__title img,
.entry-step__number,
.entry-step__image,
.entry-step__badge,
.entry__cta img {
  display: block;
  height: auto;
}

.entry__title img {
  width: 100%;
}

.entry-rule {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 26px;
  margin: 0 auto 28px;
}

.entry-rule::before,
.entry-rule::after {
  content: "";
  height: 4px;
  background-image: repeating-linear-gradient(90deg, var(--color-mint) 0 4px, transparent 4px 8px);
}

.entry-rule__title {
  margin: 0;
  color: #fff;
  font-size: 24px;
  font-weight: 800;
  line-height: 34px;
  letter-spacing: 0;
  text-align: center;
}

.entry-steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
  padding: 0;
  margin: 0 0 58px;
  list-style: none;
}

.entry-step {
  position: relative;
  min-width: 0;
  text-align: center;
}

.entry-step__number-row {
  position: relative;
  display: flex;
  justify-content: center;
  min-height: 63px;
  margin-bottom: 15px;
}

.entry-step__number {
  position: relative;
  z-index: 2;
  width: 62px;
}

.entry-step__connector {
  position: absolute;
  top: 31px;
  left: calc(50% + 51px);
  width: calc(100% - 101px);
  height: 2px;
  background: #fff;
}

.entry-step:nth-child(5) .entry-step__connector {
  display: none;
}

.entry-step__image {
  width: min(132px, 82%);
  margin: 0 auto 12px;
}

.entry-step__complete-wrap {
  position: relative;
}

.entry-step__badge {
  position: absolute;
  right: -8px;
  top: -18px;
  width: 76px;
}

.entry-step__title {
  margin: 0 0 22px;
  color: var(--color-light-blue);
  font-size: 24px;
  font-weight: 800;
  line-height: 20px;
  letter-spacing: 0;
}

.entry-step__title ruby {
  ruby-align: center;
  ruby-position: over;
}

.entry-step__title rt {
  color: var(--color-light-blue);
  font-size: 10px;
  font-weight: 700;
  line-height: 20px;
  letter-spacing: 0;
}

.entry-step__text {
  margin: 0 auto;
  width: min(154px, 100%);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  line-height: 24px;
  letter-spacing: 0;
  text-align: left;
}

.entry-step__text a {
  display: inline-block;
  margin-top: 12px;
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.entry-details {
  position: relative;
  width: 100%;
  margin: 0 auto 48px;
}

.entry-details__title {
  position: absolute;
  left: 50%;
  top: 0;
  z-index: 2;
  padding-inline: 26px;
  background: var(--color-section-blue);
  transform: translate(-50%, -50%);
}

.entry-details__frame {
  position: relative;
  width: min(var(--content-width), 100%);
  margin-inline: auto;
  padding: 38px 27px 32px;
}

.entry-details__frame::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(90deg, var(--color-mint) 0 4px, transparent 4px 10px) top left / 100% 4px repeat-x,
    repeating-linear-gradient(90deg, var(--color-mint) 0 4px, transparent 4px 10px) bottom left / 100% 4px repeat-x,
    repeating-linear-gradient(180deg, var(--color-mint) 0 4px, transparent 4px 10px) top left / 4px 100% repeat-y,
    repeating-linear-gradient(180deg, var(--color-mint) 0 4px, transparent 4px 10px) top right / 4px 100% repeat-y;
}

.entry-details__item {
  position: relative;
  z-index: 1;
  overflow: hidden;
  background: #fff;
}

.entry-details__item+.entry-details__item {
  margin-top: 12px;
}

.entry-details__item h4 {
  margin: 0;
  padding: 15px 24px 17px;
  color: #fff;
  background: var(--keio-blue);
  font-size: 30px;
  font-weight: 800;
  line-height: 34px;
  letter-spacing: 0.06em;
  text-align: center;
}

.entry-details__item p {
  margin: 0;
  padding: 13px 80px 14px;
  color: #000;
  font-size: 20px;
  font-weight: 700;
  line-height: 24px;
  letter-spacing: 0;
}

.entry__cta {
  display: block;
  width: 452px;
  max-width: 80%;
  margin: 0 auto;
}

.entry__cta img {
  width: 100%;
}

/* ===================== Criteria ===================== */
.criteria {
  --section-boundary-overlap: 115px;
  position: relative;
  z-index: 1;
  overflow: visible;
  margin-top: -115px;
  padding: 112px 0 150px;
  color: var(--color-text);
  background: transparent;
}

.criteria::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: calc(var(--section-boundary-overlap) - 1px);
  bottom: 0;
  z-index: 0;
  pointer-events: none;
  background:
    url("../assets/2026/criteria/criteria-background.png") center top / 100% auto repeat-y,
    #1fa8d3;
}

.criteria::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  z-index: 1;
  height: 115px;
  pointer-events: none;
  background: url("../assets/2026/criteria/criteria-background-decoration.png") center top / var(--section-boundary-width) auto repeat-x;
}

.criteria__inner {
  position: relative;
  z-index: 2;
  width: min(var(--content-width), calc(100% - 80px));
  margin-inline: auto;
}

.criteria__shell {
  position: relative;
  width: min(900px, 100%);
  margin-inline: auto;
}

.criteria__title {
  position: relative;
  z-index: 5;
  width: min(722.5px, 82vw);
  margin: 0 auto -58px;
  transform: translateY(28px);
}

.criteria__title img {
  width: 100%;
}

.criteria__panel {
  position: relative;
  z-index: 2;
  width: 100%;
  min-height: 1320px;
  padding: 110px 92px 104px;
  background: #fff;
  border: 9px solid var(--color-blue-dark);
  box-shadow: 0 20px 4px rgba(0, 0, 0, 0.25);
}

.criteria__ufo {
  position: absolute;
  z-index: 4;
  left: clamp(-112px, calc(206px - 26.5vw), -59px);
  top: 118px;
  width: clamp(135px, calc(30.5vw - 170px), 196px);
  pointer-events: none;
}

.criteria__intro {
  margin: 0 0 58px;
  color: var(--color-blue-dark);
  font-size: 32px;
  font-weight: 900;
  line-height: 46px;
  letter-spacing: 0;
  text-align: center;
}

.criteria__intro-number {
  color: var(--color-blue-accent);
  font-size: 50px;
  line-height: 46px;
}

.criteria__intro-accent {
  color: var(--color-blue-accent);
  font-size: 40px;
  line-height: 46px;
}

.criteria__list {
  display: grid;
  gap: 56px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.criteria__item {
  text-align: center;
}

.criteria__head {
  display: grid;
  grid-template-columns: minmax(120px, 1fr) auto minmax(120px, 1fr);
  align-items: center;
  gap: 40px;
  margin-bottom: 20px;
}

.criteria__head>span {
  display: block;
  height: 2px;
  background: var(--color-blue-accent);
}

.criteria__heading {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  min-width: 210px;
  margin: 0;
  color: var(--color-blue-accent);
  font-size: 32px;
  font-weight: 900;
  line-height: 50px;
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.criteria__heading img {
  width: var(--criteria-icon-width, 22px);
  height: auto;
  flex: 0 0 auto;
  object-fit: contain;
}

.criteria__heading img[src*="criteria-icon-research"] {
  --criteria-icon-width: 22px;
}

.criteria__heading img[src*="criteria-icon-idea"] {
  --criteria-icon-width: 19.5px;
}

.criteria__heading img[src*="criteria-icon-create"] {
  --criteria-icon-width: 23.5px;
}

.criteria__heading img[src*="criteria-icon-complete"] {
  --criteria-icon-width: 18.5px;
}

.criteria__heading img[src*="criteria-icon-theme"] {
  --criteria-icon-width: 24.5px;
}

.criteria__text {
  width: min(700px, 100%);
  margin: 0 auto;
  color: var(--color-text);
  font-size: 20px;
  font-weight: 500;
  line-height: normal;
  letter-spacing: 0;
  text-align: left;
}

.criteria__cloud {
  position: absolute;
  z-index: 1;
  pointer-events: none;
}

.criteria__cloud--left {
  left: clamp(-44px, calc((100vw - 1200px) / 2 - 44px), 220px);
  top: 942px;
  width: clamp(150px, 22.17vw, 266px);
}

.criteria__cloud--right {
  right: clamp(-54px, calc((100vw - 1200px) / 2 - 54px), 260px);
  top: 1250px;
  width: clamp(150px, 22.17vw, 266px);
}

/* ===================== Concept ===================== */
.concept {
  --section-boundary-overlap: 115px;
  position: relative;
  z-index: 1;
  overflow: hidden;
  margin-top: -115px;
  padding: 115px 0 112px;
  color: var(--keio-blue);
  background: transparent;
}

.concept::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: calc(var(--section-boundary-overlap) - 1px);
  bottom: 0;
  z-index: 0;
  pointer-events: none;
  background: #51d2f5;
}

.concept::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  z-index: 1;
  height: 115px;
  pointer-events: none;
  background: url("../assets/2026/message/message-background-decoration.png") center top / var(--section-boundary-width) auto repeat-x;
}

.concept__inner {
  position: relative;
  z-index: 2;
  width: min(1200px, 100%);
  min-height: 976px;
  margin-inline: auto;
}

.concept__plane {
  position: absolute;
  z-index: 3;
  top: 17px;
  left: calc(50% + 205px);
  width: min(364px, 31vw);
  pointer-events: none;
}

.concept__cloud {
  position: absolute;
}

.concept__cloud-art {
  display: block;
  width: 100%;
}

.concept__cloud--title {
  left: 22px;
  top: 34px;
  width: 814px;
  z-index: 3;
}

.concept__title {
  position: absolute;
  left: 136px;
  top: 139px;
  margin: 0;
  color: #373737;
  font-size: 40px;
  font-weight: 800;
  line-height: 50px;
  letter-spacing: 0;
}

.concept__title>span {
  display: block;
}

.concept__title-gradient {
  display: inline;
  color: var(--keio-blue);
  font-size: 42px;
  background: linear-gradient(90deg, var(--keio-blue) 0%, var(--keio-pink) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.concept__cloud--body {
  left: 120px;
  top: 225px;
  width: 1080px;
  z-index: 2;
}

.concept__body-text {
  position: absolute;
  z-index: 4;
  left: 50%;
  top: 170px;
  width: min(780px, 72%);
  transform: translateX(-50%);
  color: var(--keio-blue);
  font-size: 28px;
  font-weight: 800;
  line-height: 40px;
  letter-spacing: 0;
  text-align: center;
}

.concept__body-text p {
  margin: 0;
}

.concept__hearts {
  display: block;
  width: 113px;
  margin: 16px auto 12px;
}

.concept__bird {
  position: absolute;
  z-index: 3;
  pointer-events: none;
}

.concept__bird--01 {
  left: 92px;
  bottom: 22px;
  width: 127px;
}

.concept__bird--02 {
  left: 188px;
  bottom: -36px;
  width: 100px;
}

/* ===================== CTA ===================== */
.cta-section {
  --section-boundary-overlap: 115px;
  position: relative;
  z-index: 1;
  overflow: hidden;
  margin-top: -115px;
  padding: 115px 0 0;
  background: transparent;
}

.cta-section::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: calc(var(--section-boundary-overlap) - 1px);
  bottom: 0;
  z-index: 0;
  pointer-events: none;
  background: var(--color-light-blue);
}

.cta-section::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  z-index: 1;
  height: 115px;
  pointer-events: none;
  background: url("../assets/2026/cta/cta-background-decoration.png") center top / var(--section-boundary-width) auto repeat-x;
}

.cta-section__inner {
  position: relative;
  z-index: 3;
  width: min(960px, calc(100% - (var(--section-side-space) * 2)));
  margin-inline: auto;
  padding-top: 78px;
  text-align: center;
}

.cta-section__cloud {
  position: absolute;
  z-index: 1;
  height: auto;
  pointer-events: none;
}

.cta-section__cloud--01 {
  top: 166px;
  left: calc(50% - 354px);
  width: 266px;
}

.cta-section__cloud--02 {
  top: 328px;
  left: clamp(-36px, calc((100vw - 1200px) / 2 + 10px), 260px);
  width: 176px;
}

.cta-section__cloud--03 {
  top: 360px;
  right: calc(50% - 540px);
  width: 202px;
}

.cta-section__cloud--04 {
  top: 188px;
  right: calc(50% - 412px);
  width: 176px;
}

.cta-section__headline {
  position: relative;
  min-height: 112px;
}

.cta-section__title {
  width: min(820px, 100%);
  margin: 0 auto;
  color: var(--keio-blue);
  font-size: 36.57px;
  font-weight: 800;
  line-height: 49.4px;
  letter-spacing: 0;
  text-align: center;
  -webkit-text-stroke: 4px #fff;
  paint-order: stroke fill;
}

.cta-section__title span {
  display: block;
}

.cta-section__break {
  display: none;
}

.cta-section__deco {
  position: absolute;
  top: 32px;
  width: 139px;
  height: auto;
  pointer-events: none;
}

.cta-section__deco--left {
  left: 0;
}

.cta-section__deco--right {
  right: 0;
}

.cta-section__button {
  width: 452px;
  margin-top: 24px;
}

.cta-section__button img {
  width: 100%;
}

.cta-section__city {
  position: relative;
  z-index: 2;
  width: 100%;
  margin-top: 40px;
  pointer-events: none;
}

.cta-section__city img {
  display: block;
  width: 100%;
  height: auto;
  margin-bottom: -0.84vw;
  clip-path: inset(0 0 7.4% 0);
}

/* ===================== Previous Works ===================== */
.previous-works {
  position: relative;
  overflow: hidden;
  padding: 58px 0 86px;
  background:
    url("../assets/2026/previous-works/previous-works-confetti-background.png") center top / var(--section-boundary-width) auto repeat-y,
    linear-gradient(112deg, #209447 0%, #1c8547 48%, #176640 100%);
}

.previous-works__inner {
  position: relative;
  z-index: 1;
  text-align: center;
}

.previous-works__heading {
  margin: 0;
}

.previous-works__title-image {
  width: min(722px, calc(100% - (var(--section-side-space) * 2)));
  margin: 0 auto;
}

.previous-works__slider {
  overflow: hidden;
  margin-top: 46px;
}

.works-marquee {
  width: 100%;
  overflow: hidden;
  contain: layout paint;
}

.works-track {
  display: flex;
  gap: 20px;
  width: max-content;
  animation: works-marquee 40s linear infinite;
  will-change: transform;
}

.works-marquee.is-paused .works-track {
  animation-play-state: paused;
}

@keyframes works-marquee {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(-50%);
  }
}

.works-slide {
  display: flex;
  flex-direction: column;
  width: 340px;
  text-decoration: none;
}

.works-thumb {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.25);
  border: 6px solid #ffda3f;
  box-shadow: 10px 14px 10px rgba(0, 0, 0, 0.24);
}

.works-image {
  display: block;
  width: auto;
  max-width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
}

.works-medal {
  position: absolute;
  right: 6px;
  bottom: 6px;
  width: 55px;
  pointer-events: none;
}

.works-caption {
  margin-top: 22px;
  overflow: hidden;
  color: #ffda64;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.previous-works__nav {
  display: flex;
  justify-content: center;
  margin-top: 28px;
}

.works-control {
  display: grid;
  place-items: center;
  width: 62px;
  height: 63px;
  padding: 0;
  border: 0;
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  cursor: pointer;
}

.works-control__icon {
  grid-area: 1 / 1;
  width: 62px;
  height: auto;
  image-rendering: pixelated;
  transition: transform 150ms ease, opacity 150ms ease;
}

.works-control__icon--play {
  opacity: 0;
}

.works-control[aria-pressed="true"] .works-control__icon--pause {
  opacity: 0;
}

.works-control[aria-pressed="true"] .works-control__icon--play {
  opacity: 1;
}

.awards-cta {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: clamp(28px, 5.8vw, 70px);
  margin-top: 38px;
  padding-bottom: 18px;
  color: #ffda64;
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 900;
  line-height: 1.35;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.awards-cta::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 2px;
  background: currentColor;
}

.awards-cta__line {
  display: inline;
}

.awards-cta__icon {
  display: inline-flex;
  align-items: center;
  width: 30px;
  height: 30px;
  transition: transform 150ms ease;
}

.awards-cta__icon img {
  width: 100%;
  height: auto;
  image-rendering: pixelated;
}

/* ===================== Sponsors ===================== */
.sponsors-section {
  overflow: hidden;
  padding: 62px 0 60px;
  background: #ffffff;
}

.sponsors-section__inner {
  width: min(960px, calc(100% - (var(--section-side-space) * 2)));
  margin-inline: auto;
}

.sponsors-section__heading {
  position: relative;
  width: min(925px, 100%);
  margin: 0 auto;
}

.sponsors-section__heading--supporter {
  width: min(722px, 100%);
  margin-top: 52px;
}

.sponsors-section__heading-image {
  display: block;
  width: 100%;
  height: auto;
}

.organizer-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 46px;
  margin-top: 34px;
}

.organizer-group {
  position: relative;
  min-width: 0;
}

.sponsors-section__note {
  position: absolute;
  right: 6px;
  top: -34px;
  margin: 0;
  color: var(--color-blue-dark);
  font-size: 24px;
  font-weight: 700;
  line-height: 32px;
}

.sponsors-section__label {
  display: flex;
  align-items: center;
  gap: 24px;
  width: 100%;
  margin: 0 0 34px;
  color: var(--color-blue-dark);
  font-size: 24px;
  font-weight: 700;
  line-height: 32px;
  letter-spacing: 0;
  text-align: center;
}

.sponsors-section__label::before,
.sponsors-section__label::after {
  content: "";
  flex: 1 1 auto;
  height: 2px;
  background: currentColor;
}

.sponsors-section__label span {
  flex: 0 0 auto;
}

.sponsors-logos {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 32px 44px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.sponsors-logos li {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
}

.sponsor-logo {
  width: auto;
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

.sponsor-logo--keio {
  width: 142px;
}

.sponsor-logo--keio-esports {
  width: 210px;
}

.sponsor-logo--jaxa {
  width: 168px;
  mix-blend-mode: multiply;
}

.supporter-block {
  margin-top: 44px;
}

.sponsors-logos--companies {
  gap: 34px 40px;
  max-width: 900px;
  margin-inline: auto;
}

.sponsors-logos--companies li {
  min-height: 50px;
}

.sponsor-logo--asahi-life {
  width: 148px;
}

.sponsor-logo--okumura {
  width: 138px;
}

.sponsor-logo--omron {
  width: 148px;
}

.sponsor-logo--coeteco {
  width: 150px;
}

.sponsor-logo--taisei {
  width: 180px;
}

.sponsor-logo--takasago {
  width: 150px;
}

.sponsor-logo--jr-central {
  width: 134px;
}

.sponsor-logo--ftl-labo {
  width: 260px;
}

.sponsor-logo--nippon-signal {
  width: 240px;
}

.sponsor-logo--maeda {
  width: 210px;
}

.sponsor-logo--frente-sasazuka {
  width: 190px;
}

.sponsor-logo--kirarina-keio-kichijoji {
  width: 210px;
}

.sponsor-logo--trie-keio-chofu {
  width: 270px;
}

.sponsor-logo--seiseki-sc {
  width: 176px;
}

.sponsor-logo--tisi {
  width: 220px;
}

.sponsor-logo--trip-caption {
  width: 300px;
}

.sponsors-text-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 22px 34px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.sponsors-text-list li {
  color: var(--color-navy);
  font-size: 32px;
  font-weight: 900;
  line-height: 1.25;
  max-width: 100%;
  text-align: center;
  white-space: normal;
  overflow-wrap: anywhere;
}

.sponsors-logos--support {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  justify-items: center;
  align-items: center;
  gap: 34px;
  margin-top: 42px;
}

.sponsors-logos--support li {
  grid-column: span 2;
  width: 100%;
}

.sponsors-logos--support li:nth-child(4) {
  grid-column: 2 / span 2;
}

.sponsors-logos--support li:nth-child(5) {
  grid-column: 4 / span 2;
}

.sponsor-logo--sagamihara-esports {
  width: 330px;
}

.sponsor-logo--setagaya-machinaka {
  width: 260px;
}

.sponsor-logo--setagaya-industry {
  width: 290px;
}

.sponsor-logo--juki-fandom {
  width: 250px;
}

.sponsor-logo--shimokita-robofes {
  width: 170px;
}

.supporter-block--cooperation {
  text-align: center;
}

.supporter-block--cooperation .sponsors-section__label {
  margin-bottom: 46px;
}

.sponsor-logo--taiken {
  width: 260px;
  margin-inline: auto;
}

.faq-section {
  width: 100%;
  padding: 64px 0 260px;
  background:
    url("../assets/2026/faq/faq-background.png") center top / 100% auto repeat-y,
    #fff;
}

.faq-section__inner {
  width: min(960px, calc(100% - (var(--section-side-space) * 2)));
  margin-inline: auto;
}

.faq-section__title {
  width: min(722px, 100%);
  margin: 0 auto 54px;
}

.faq-section__title img {
  display: block;
  width: 100%;
  height: auto;
}

.faq-list {
  display: grid;
  padding: 0;
  margin: 0;
  list-style: none;
}

.faq-item {
  border-top: 4px dotted var(--color-gray-line);
}

.faq-item:last-child {
  border-bottom: 4px dotted var(--color-gray-line);
}

.faq-q {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  width: 100%;
  padding: 30px 0 22px;
  color: var(--color-navy);
  font: inherit;
  text-align: left;
  background: transparent;
  border: 0;
  cursor: pointer;
}

.faq-label {
  font-size: 24px;
  font-weight: 700;
  line-height: 36px;
  letter-spacing: 0;
}

.faq-question {
  min-width: 0;
  color: var(--color-navy);
  font-size: 24px;
  font-weight: 700;
  line-height: 36px;
  letter-spacing: 0;
}

.faq-caret {
  width: 24px;
  height: 15px;
  background: url("../assets/2026/faq/faq-arrow.png") center / contain no-repeat;
  transform: rotate(180deg);
  transition: transform 0.2s ease;
}

.faq-item.is-open .faq-caret {
  transform: rotate(0deg);
}

.faq-a {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  padding: 0 42px 30px 0;
  color: var(--color-text);
}

.faq-a .faq-label {
  color: var(--color-text);
  line-height: 48px;
}

.faq-answer {
  min-width: 0;
  color: var(--color-text);
  font-size: 24px;
  font-weight: 500;
  line-height: 32px;
  letter-spacing: 0;
}

.faq-answer p {
  margin: 0;
}

.faq-answer p+p {
  margin-top: 20px;
}

.faq-a[hidden] {
  display: none;
}

/* ===================== Footer ===================== */
.site-footer {
  overflow: hidden;
  color: #fff;
  background: #003d7e;
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: 42px;
  justify-content: normal;
  width: min(960px, calc(100% - (var(--section-side-space) * 2)));
  max-width: none;
  margin-inline: auto;
  padding: 58px 0 70px;
}

.footer-left,
.footer-right {
  min-width: 0;
}

.footer-left {
  display: grid;
  justify-items: center;
  text-align: center;
}

.footer-logo {
  display: block;
  width: min(430px, 100%);
  height: auto;
}

.footer-note {
  margin: 18px 0 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 32px;
  letter-spacing: 0;
}

.footer-right {
  display: grid;
  justify-items: end;
  padding: 0;
  text-align: right;
  transform: none;
}

.footer-msg {
  display: block;
  justify-self: end;
  width: min(420px, 100%);
  max-width: none;
  height: auto;
  margin-bottom: 34px;
}

.btn-footer {
  display: inline-block;
  justify-self: end;
  width: min(423px, 100%);
}

.btn-footer img {
  display: block;
  width: 100%;
  max-width: none;
  height: auto;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, max-content);
  gap: 18px 58px;
  justify-content: end;
  justify-self: end;
  padding: 0;
  margin: 44px 0 0;
  list-style: none;
}

.footer-links li {
  text-align: right;
}

.footer-links a {
  color: var(--color-mint);
  font-size: 14px;
  font-weight: 700;
  line-height: 24px;
  text-decoration: none;
  white-space: nowrap;
}

.footer-links a:hover {
  text-decoration: underline;
}

.footer-disclaimer {
  justify-self: end;
  width: min(440px, 100%);
  max-width: 440px;
  margin: 38px 0 0;
  color: #d8ecff;
  font-size: 10px;
  font-weight: 400;
  line-height: 1.45;
  letter-spacing: 0;
  text-align: right;
}

.footer-disclaimer .no-break {
  white-space: nowrap;
}

.footer-copyright {
  display: grid;
  place-items: center;
  min-height: 32px;
  padding: 7px 16px;
  color: #38ac57;
  background: #fff;
  text-align: center;
}

.footer-copyright p {
  margin: 0;
  font-size: 10px;
  font-weight: 400;
  line-height: 1.4;
}

/* ===================== Responsive ===================== */

/* ---------- 1401px以上 ---------- */
@media (min-width: 1401px) {

  /* FV */
  .fv__inner {
    width: clamp(960px, calc(960px + (100vw - 1400px) * 0.44), 1460px);
    padding-top: calc(var(--header-height) + min(3.083vw, 37px) + clamp(0px, calc((100vw - 1400px) * 0.09), 102px));
  }

  .fv__entry {
    top: clamp(575px, calc(575px + (100vw - 1400px) * 0.297), 916px);
    width: clamp(443.8px, calc(443.8px + (100vw - 1400px) * 0.153), 620px);
    height: auto;
  }

  .fv__entry img {
    height: auto;
  }
}

/* ---------- 981px以上 ---------- */
@media (min-width: 981px) {

  /* CTA */
  .cta-section__title span:first-child {
    white-space: nowrap;
  }
}

/* ---------- Hover対応端末 ---------- */
@media (hover: hover) {

  /* Previous Works */
  .works-control:hover .works-control__icon {
    transform: scale(1.05);
  }

  .awards-cta:hover .awards-cta__icon {
    transform: translateX(4px);
  }
}

/* ---------- 901px以上・1020px以下 ---------- */
@media (min-width: 901px) and (max-width: 1020px) {

  /* Concept */
  .concept__cloud--body {
    left: 50%;
    transform: translateX(-47%);
  }
}

/* ---------- 1180px以下 ---------- */
@media (max-width: 1180px) {

  /* Header */
  .site-header__inner {
    width: min(calc(100% - 28px), 1120px);
    gap: 12px;
  }

  .site-header__logo {
    width: 260px;
  }

  .site-header__entry {
    width: 232px;
  }

  .primary-nav__list {
    gap: 10px;
  }

  .primary-nav a {
    font-size: 15px;
  }

  .primary-nav {
    --nav-nudge: 0.14em;
  }

  /* FV */
  .fv__inner {
    /* 1021px付近では960pxのままだとFV高に入りきらないため、デザイン案の選択幅に近い約828pxへ絞る。 */
    width: min(calc(100% - 192px), 828px);
    padding-top: calc(var(--header-height) + min(3.083vw, 37px));
  }

  /* Present */
  .present__lead {
    grid-template-columns: 96px 1fr;
  }

  .present__gift {
    left: clamp(20px, calc(964px - 80vw), 180px);
  }

  .present-award-heading__badge {
    width: 220px;
  }

  /* Ceremony */
  .ceremony__rocket {
    right: clamp(-104px, calc(195px - 25.3vw), -32px);
    width: clamp(230px, 26vw, 300px);
  }

  .ceremony__astronaut {
    left: clamp(-56px, calc((901px - 100vw) * 0.04 - 45px), -45px);
  }
}

/* ---------- 980px以下 ---------- */
@media (max-width: 980px) {

  /* Base / Reset */
  :root {
    --header-height: 66px;
    --section-side-space: clamp(24px, 7vw, 40px);
  }

  /* Header */
  .site-header {
    left: 0;
    right: 0;
    width: 100%;
  }

  .primary-nav,
  .site-header__entry {
    display: none;
  }

  .site-header__inner {
    width: min(calc(100% - 28px), var(--content-width));
  }

  .site-header__logo {
    width: min(70vw, 294px);
  }

  /* Mobile menu */
  .menu-scrim {
    top: var(--header-height);
    right: auto;
    bottom: auto;
    left: 0;
    width: 100%;
    height: calc(100dvh - var(--header-height));
  }

  .mobile-nav {
    right: 0;
    left: auto;
    width: min(82%, 360px);
  }

  .menu-toggle {
    display: block;
    position: absolute;
    top: 50%;
    right: 0;
    z-index: 3;
    margin-left: 0;
    transform: translateY(-50%);
  }

  /* FV */
  .fv__inner {
    /* 900px前後では前面画像を絞り、応募期間をCTAの上に収める。 */
    width: min(calc(100% - 192px), 700px);
    padding-top: calc(var(--header-height) + min(3.083vw, 37px));
  }

  .fv__parts {
    margin-top: 0;
  }

  /* Present */
  .present {
    margin-top: -36px;
    padding-block: 64px 108px;
  }

  .present__inner {
    width: min(var(--content-width), calc(100% - 64px));
  }

  .present__lead {
    grid-template-columns: 72px 1fr;
    gap: 18px;
  }

  .present__gift {
    width: 50px;
    top: clamp(-70px, calc(25vw - 245px), 0px);
    left: max(20px,
        min(calc(374px - 30vw),
          calc(216px - 13.9vw),
          calc(75vw - 495px)));
  }


  .present-heading__layer {
    font-size: clamp(20px, 4.5vw, 34px);
  }

  .present__body {
    grid-template-columns: 1fr;
    gap: 28px;
    margin-top: 34px;
  }

  .present-carousel {
    width: min(100%, 420px);
    margin-inline: auto;
  }

  .present__copy {
    justify-items: start;
    font-size: 17px;
    line-height: 1.75;
    text-align: left;
    white-space: normal;
  }

  .present__copy span {
    display: inline;
  }

  .present__copy .present__copy-pc {
    display: none;
  }

  .present__copy .present__copy-sp {
    display: block;
  }

  .present__award {
    min-height: 430px;
    margin-top: 48px;
  }

  .present-award-heading {
    display: block;
    width: min(100%, 640px);
    min-height: 0;
    margin-inline: auto;
  }

  .present-award-heading__badge {
    display: block;
    position: relative;
    top: auto;
    left: auto;
    width: 180px;
    margin-inline: auto;
    margin-bottom: 14px;
  }

  .present02-heading {
    width: 100%;
    height: 132px;
  }

  .present02-heading__layer {
    font-size: clamp(28px, 4vw, 32px);
    padding-top: 0;
    text-align: center;
  }

  .present02-heading__layer--shadow {
    transform: translateY(clamp(10px, 2.2vw, 22px));
  }

  .present02-heading__line:first-child {
    margin-left: 0;
    font-size: clamp(23px, 3.4vw, 27px);
  }

  .present02-heading__line:nth-child(2) {
    margin-top: 32px;
    margin-inline: auto;
  }

  .present02-heading__line:nth-child(2) span:nth-child(2),
  .present02-heading__line:nth-child(2) span:nth-child(4) {
    font-size: clamp(22px, 3.5vw, 26px);
  }

  .present__award-images {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: clamp(24px, 5vw, 42px);
    position: absolute;
    top: 236px;
    right: 50%;
    transform: translateX(50%);
    width: min(100%, 370px);
    min-height: 150px;
  }

  .present__certificate {
    width: clamp(128px, 18vw, 150px);
    margin-left: 0;
    transform: rotate(6.17deg);
  }

  .present__slim {
    position: static;
    width: clamp(92px, 14vw, 112px);
    transform: rotate(16deg);
  }

  /* Theme */
  .theme__inner {
    width: min(900px, calc(100% - 104px));
  }
}

/* ---------- 901px以上・1044px以下 ---------- */
@media (min-width: 901px) and (max-width: 1044px) {

  /* World */
  .world__info {
    --world-info-bleed: calc((100vw - min(900px, calc(100vw - 80px))) / 2);
    --world-planet-space: clamp(180px, 20vw, 206px);
  }

  .world__info--warp {
    padding-right: calc(var(--world-planet-space) - var(--world-info-bleed) + 16px);
  }

  .world__info--warp::before {
    left: calc(var(--world-info-bleed) * -1);
    width: calc(100vw - var(--world-planet-space));
  }

  .world__planet {
    right: calc(16px - var(--world-info-bleed));
    width: clamp(144px, 16vw, 168px);
  }

  /* Trial */
  .trial {
    --section-boundary-overlap: 115px;
    margin-top: -115px;
    padding-block: 88px 140px;
  }

  .trial__inner {
    width: calc(100% - (var(--section-side-space) * 2));
  }

  .trial__message-stack {
    margin: 34px 0 44px;
  }

  .trial__message,
  .trial__message-shadow {
    font-size: clamp(30px, 4.8vw, 40px);
  }

  .trial__schedule {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 28px;
    padding: 36px 48px;
  }

  .trial__schedule-heading {
    font-size: clamp(22px, 3vw, 26px);
  }

  .trial__free,
  .trial__schedule-heading p:nth-child(2) {
    font-size: clamp(22px, 3vw, 28px);
  }

  .trial__schedule-heading p:nth-child(3) {
    font-size: clamp(28px, 4vw, 34.56px);
  }

  .trial__dates {
    font-size: 13px;
  }

  .trial__beginner-mark {
    right: calc(var(--section-side-space) * -1.1);
    width: clamp(70px, 10vw, 94px);
  }

  .trial__planet {
    left: clamp(-40px, -5vw, -28px);
    width: clamp(120px, 17vw, 168px);
  }
}

/* ---------- 900px以下 ---------- */
@media (max-width: 900px) {

  /* Present */
  .present-heading {
    width: 100%;
    max-width: calc(100vw - 64px);
    margin-inline: auto;
  }

  .present-heading__layer {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    font-size: clamp(26px, 4.9vw, 34px);
    line-height: 1.45;
    text-align: center;
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .present-heading__line,
  .present-heading__sp-break {
    display: block;
  }

  /* Theme */
  .theme {
    padding-block: 32px 115px;
  }

  .theme__inner {
    width: calc(100% - 104px);
  }

  .theme__title {
    width: min(640px, 86vw);
    margin-bottom: -54px;
  }

  .theme__panel {
    min-height: auto;
    padding: 68px 34px 44px;
  }

  .theme__astronaut {
    right: -56px;
    top: 330px;
    width: 86px;
  }

  .theme__crown {
    left: -44px;
    width: 88px;
  }

  /* World */
  .world {
    --section-boundary-overlap: 115px;
    margin-top: -115px;
    padding-block: 88px 133px;
  }

  .world__inner {
    width: calc(100% - 80px);
  }

  .world__title {
    width: min(860px, 100%);
  }

  .world__info--warp::before {
    left: 0;
    width: 100%;
  }

  .world__planet {
    right: -34px;
    width: 150px;
  }

  /* Ceremony */
  .ceremony {
    --section-boundary-overlap: 115px;
    margin-top: -115px;
    padding-block: 88px 110px;
  }

  .ceremony__inner {
    width: calc(100% - (var(--section-side-space) * 2));
  }

  .ceremony__title {
    width: min(700px, 92vw);
    margin-bottom: -52px;
    transform: translateY(22px);
  }

  .ceremony__panel {
    padding: 80px 42px 50px;
  }

  .ceremony__rocket {
    right: clamp(-58px, calc(22vw - 218px), -30px);
    top: 126px;
    width: clamp(190px, 28vw, 260px);
  }

  .ceremony__astronaut {
    left: calc(var(--section-side-space) * -1.25);
    bottom: 340px;
    width: clamp(96px, 15vw, 126px);
  }

  /* Movie */
  .movie {
    --section-boundary-overlap: 115px;
    margin-top: -115px;
    padding-block: 88px 208px;
  }

  .movie__inner {
    width: calc(100% - (var(--section-side-space) * 2));
  }

  .movie__title {
    width: min(676px, 92vw);
    margin-bottom: -32px;
  }

  .movie__frame {
    width: min(820px, calc(100% - 56px));
  }

  .movie__frame-layer--01 {
    inset: -24px -44px 24px 24px;
    background: #3a72ff;
  }

  .movie__frame-layer--02 {
    inset: -48px -68px 48px 48px;
  }

  .movie__frame-layer--03 {
    inset: -72px -92px 72px 72px;
  }

  /* Trial */
  .trial {
    --section-boundary-overlap: 115px;
    margin-top: -115px;
    padding-block: 88px 140px;
  }

  .trial__inner {
    width: calc(100% - (var(--section-side-space) * 2));
  }

  .trial__message-stack {
    margin: 34px 0 44px;
  }

  .trial__message,
  .trial__message-shadow {
    font-size: clamp(30px, 4.8vw, 40px);
  }

  .trial__schedule {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
    padding: 36px clamp(28px, 5vw, 48px);
    border-radius: 96px 0 0 96px;
  }

  .trial__schedule-heading {
    font-size: clamp(22px, 3vw, 26px);
  }

  .trial__free,
  .trial__schedule-heading p:nth-child(2) {
    font-size: clamp(22px, 3vw, 28px);
  }

  .trial__schedule-heading p:nth-child(3) {
    font-size: clamp(28px, 4vw, 34.56px);
  }

  .trial__dates {
    font-size: clamp(13px, 1.65vw, 15px);
  }

  .trial__beginner-mark {
    right: calc(var(--section-side-space) * -1.1);
    width: clamp(70px, 10vw, 94px);
  }

  .trial__planet {
    left: clamp(-40px, -5vw, -28px);
    width: clamp(120px, 17vw, 168px);
  }

  /* Entry */
  .entry {
    --section-boundary-overlap: 115px;
    margin-top: -115px;
    padding-block: 110px 104px;
  }

  .entry__inner {
    width: calc(100% - (var(--section-side-space) * 2));
  }

  .entry__title {
    width: min(620px, 100%);
    margin: 30px auto 42px;
  }

  .entry-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 34px 28px;
  }

  .entry-step__connector {
    display: none;
  }

  .entry-step__text {
    width: min(210px, 100%);
  }

  .entry-details__item p {
    padding-inline: 40px;
  }

  /* Criteria */
  .criteria {
    --section-boundary-overlap: 115px;
    margin-top: -115px;
    padding-block: 110px 124px;
  }

  .criteria__inner {
    width: calc(100% - (var(--section-side-space) * 2));
  }

  .criteria__title {
    width: min(700px, 92vw);
    margin-bottom: -52px;
    transform: translateY(22px);
  }

  .criteria__panel {
    min-height: auto;
    padding: 92px 48px 72px;
  }

  .criteria__ufo {
    left: clamp(-46px, calc(14px - 6.7vw), -30px);
    top: 22px;
    width: clamp(78px, 12vw, 112px);
  }

  .criteria__intro {
    margin-bottom: 46px;
    font-size: clamp(24px, 4vw, 32px);
  }

  .criteria__list {
    gap: 48px;
  }

  .criteria__head {
    grid-template-columns: minmax(70px, 1fr) auto minmax(70px, 1fr);
    gap: 24px;
  }

  .criteria__cloud--left {
    top: 820px;
    width: clamp(140px, 24vw, 266px);
  }

  .criteria__cloud--right {
    top: 1120px;
    width: clamp(140px, 24vw, 266px);
  }

  /* Concept */
  .concept {
    --section-boundary-overlap: 115px;
    margin-top: -115px;
    padding-block: 115px 96px;
  }

  .concept__inner {
    min-height: clamp(760px, calc(90vw + 72px), 944px);
  }

  .concept__plane {
    top: 16px;
    left: auto;
    right: clamp(-8px, 2vw, 28px);
    width: clamp(218px, 36vw, 320px);
  }

  .concept__cloud--title {
    left: clamp(-18px, 3vw, 22px);
    top: 34px;
    width: clamp(610px, 94vw, 814px);
  }

  .concept__title {
    font-size: clamp(28px, 4vw, 40px);
    line-height: 1.25;
  }

  .concept__title-gradient {
    font-size: clamp(29px, 4.2vw, 42px);
  }

  .concept__cloud--body {
    left: 50%;
    top: clamp(218px, 30vw, 250px);
    width: clamp(860px, 122vw, 1080px);
    transform: translateX(-44%);
  }

  .concept__body-text {
    top: 20%;
    width: min(780px, calc(100vw - 96px));
    font-size: clamp(21px, 3.1vw, 28px);
    line-height: 1.55;
  }

  .concept__hearts {
    width: clamp(86px, 12vw, 113px);
    margin: 20px auto 18px;
  }

  .concept__bird--01 {
    left: 12%;
    bottom: 3%;
    width: clamp(54px, 8vw, 70px);
  }

  .concept__bird--02 {
    left: 19%;
    bottom: -3%;
    width: clamp(42px, 6.5vw, 55px);
  }

  /* CTA */
  .cta-section {
    --section-boundary-overlap: 115px;
    margin-top: -115px;
    padding-top: 115px;
  }

  .cta-section__inner {
    padding-top: clamp(58px, 9vw, 78px);
  }

  .cta-section__cloud--01 {
    top: 154px;
    left: clamp(118px, 22vw, 260px);
    width: clamp(178px, 31vw, 266px);
  }

  .cta-section__cloud--02 {
    top: 310px;
    width: clamp(118px, 20vw, 176px);
  }

  .cta-section__cloud--03 {
    top: 346px;
    right: clamp(-22px, 3vw, 70px);
    width: clamp(136px, 24vw, 202px);
  }

  .cta-section__cloud--04 {
    top: 182px;
    right: clamp(72px, 13vw, 166px);
    width: clamp(118px, 20vw, 176px);
  }

  .cta-section__headline {
    min-height: clamp(98px, 13vw, 112px);
  }

  .cta-section__title {
    font-size: clamp(28px, 4.2vw, 36.57px);
    line-height: 1.35;
  }

  .cta-section__deco {
    top: clamp(28px, 4vw, 32px);
    width: clamp(84px, 16vw, 139px);
  }

  .cta-section__button {
    width: min(452px, 72vw);
    margin-top: 22px;
  }

  .cta-section__city {
    margin-top: clamp(30px, 5vw, 40px);
  }

  /* Previous Works */
  .previous-works {
    padding: 48px 0 72px;
  }

  .previous-works__title-image {
    width: min(640px, calc(100% - 48px));
  }

  .previous-works__slider {
    margin-top: 38px;
  }

  .works-slide {
    width: clamp(260px, 42vw, 320px);
  }

  .works-thumb {
    height: clamp(150px, 23vw, 188px);
  }

  /* Sponsors */
  .sponsors-section {
    padding: 52px 0 56px;
  }

  .sponsors-section__heading {
    width: min(640px, 100%);
  }

  .organizer-layout {
    grid-template-columns: 1fr;
    gap: 38px;
    margin-top: 28px;
  }

  .sponsors-section__note {
    right: 0;
    top: -32px;
    font-size: 18px;
    line-height: 28px;
  }

  .sponsors-logos--companies {
    gap: 30px 32px;
  }

  .sponsor-logo--taisei,
  .sponsor-logo--ftl-labo,
  .sponsor-logo--nippon-signal,
  .sponsor-logo--maeda {
    max-width: 100%;
  }

  /* FAQ */
  .faq-section {
    padding: 52px 0 190px;
  }

  .faq-section__title {
    width: min(640px, 100%);
    margin-bottom: 44px;
  }

  .faq-q {
    padding: 26px 0 18px;
  }

  .faq-label,
  .faq-question {
    font-size: clamp(18px, 3vw, 22px);
    line-height: 1.6;
  }

  .faq-a {
    padding-bottom: 26px;
  }

  .faq-answer {
    font-size: clamp(17px, 2.8vw, 21px);
    line-height: 1.6;
  }

  /* Footer */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 52px 0 56px;
  }

  .footer-right {
    justify-items: center;
    text-align: center;
  }

  .footer-logo {
    width: min(400px, 100%);
  }

  .footer-msg,
  .btn-footer {
    justify-self: center;
  }

  .footer-msg {
    margin-bottom: 26px;
  }

  .footer-links {
    justify-content: center;
    justify-self: center;
    gap: 14px 34px;
    margin-top: 34px;
  }

  .footer-links li {
    text-align: center;
  }

  .footer-disclaimer {
    justify-self: center;
    margin-top: 30px;
    text-align: center;
  }
}

/* ---------- 640px以下 ---------- */
@media (max-width: 640px) {

  /* Base / Reset */
  :root {
    --header-height: 64px;
  }

  /* Header */
  .site-header__inner {
    width: calc(100% - 20px);
  }

  .site-header__logo {
    width: min(69vw, 258px);
  }

  /* FV */
  .fv {
    /* SPではヘッダー直下からFV背景を始め、背景画像ぶんの高さを確保する。 */
    --fv-bg-height: 59.04vw;
    margin-top: var(--header-height);
    height: var(--fv-bg-height);
  }

  .fv__bg--scene {
    left: 50%;
    right: auto;
    bottom: auto;
    width: 108%;
    transform: translateX(-50%);
  }

  .fv__inner {
    width: min(calc(100% - 16px), 600px);
    padding-top: 24px;
  }

  .fv__parts {
    width: 100%;
  }

  .fv__entry {
    top: min(51.75vw, 575px);
    width: min(46.5vw, 248px);
    height: min(8.48vw, 45.2px);
  }

  /* Present */
  .present {
    margin-top: -22px;
    padding-block: 54px 88px;
  }

  .present__inner {
    width: min(calc(100% - 40px), var(--content-width));
  }

  .present__lead {
    display: block;
    position: relative;
  }

  .present__gift {
    position: absolute;
    top: 10px;
    left: clamp(0px, calc(59.6vw - 282px), 100px);
    width: 38px;
  }

  .present-heading {
    width: 100%;
    max-width: calc(100vw - 24px);
  }

  .present-heading__layer {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    font-size: clamp(17px, 5.4vw, 22px);
    line-height: 1.45;
    text-align: center;
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .present__body {
    margin-top: 30px;
  }

  .present-carousel {
    gap: 8px;
    height: auto;
  }

  .present-carousel__caption {
    gap: 16px;
  }

  .present-carousel__stage {
    height: 172px;
  }

  .present-carousel__image {
    max-height: 172px;
  }

  .present-carousel__name {
    font-size: clamp(17px, 5vw, 18px);
  }

  .present-carousel__name--compact {
    width: min(54vw, 210px);
  }

  .present__copy {
    width: 100%;
    min-width: 0;
    font-size: 15px;
  }

  .present__copy span {
    display: inline;
    max-width: 100%;
    white-space: normal;
    overflow-wrap: normal;
    word-break: normal;
    line-break: strict;
  }

  .present-award-heading {
    justify-items: center;
    min-height: 0;
    text-align: center;
  }

  .present__award {
    min-height: 420px;
  }

  .present-award-heading__badge {
    position: relative;
    top: auto;
    left: auto;
    width: 178px;
    margin-inline: auto;
  }

  .present02-heading {
    width: 100%;
    height: 142px;
  }

  .present02-heading__layer {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    padding-top: 0;
    font-size: clamp(18px, 6vw, 25px);
    line-height: 1.35;
    text-align: center;
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .present02-heading__line {
    white-space: normal;
  }

  .present02-heading__line:nth-child(2) span {
    display: inline;
    white-space: normal;
  }

  .present02-heading__line:nth-child(2) span:nth-child(2),
  .present02-heading__line:nth-child(2) span:nth-child(4) {
    font-size: inherit;
  }

  .present02-heading__line:first-child {
    margin-left: 0;
    font-size: clamp(17px, 5.2vw, 22px);
    transform: none;
  }

  .present02-heading__line:nth-child(2) {
    margin-left: 0;
    margin-top: 18px;
  }

  .present__award-images {
    width: min(86vw, 318px);
    min-height: 136px;
    top: 260px;
    gap: clamp(18px, 6vw, 28px);
  }

  .present__certificate {
    width: clamp(112px, 32vw, 128px);
  }

  .present__slim {
    width: clamp(84px, 25vw, 98px);
  }

  .dash-rule {
    gap: 14px;
    font-size: 21px;
    line-height: 30px;
  }

  /* Theme */
  .theme {
    padding-block: 28px 115px;
  }

  .theme__inner {
    width: calc(100% - (var(--section-side-space) * 2));
  }

  .theme__title {
    width: min(112vw, 520px);
    margin-left: 50%;
    margin-bottom: -44px;
    transform: translateX(-50%);
  }

  .theme__panel {
    padding: 66px 18px 36px;
    border-width: 5px;
  }

  .theme__block+.theme__block {
    margin-top: 40px;
  }

  .theme-departments {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .theme-department__title {
    font-size: clamp(30px, 9vw, 36px);
    line-height: 1;
  }

  .theme-department__title img {
    width: 60px;
  }

  .theme-department__lead {
    font-size: 16px;
    line-height: 23px;
  }

  .theme-department__text,
  .theme-department__condition {
    font-size: 15px;
    line-height: 24px;
  }

  .theme-department__text {
    min-height: auto;
  }

  .theme-department__condition {
    margin-top: 22px;
  }

  .theme-qualification li {
    padding: 9px 12px;
    font-size: 15px;
    line-height: 23px;
    letter-spacing: 0.02em;
  }

  .theme__note {
    font-size: 13px;
    line-height: 24px;
  }

  .theme__entry {
    width: min(78vw, 360px);
    height: auto;
  }

  .theme__astronaut {
    right: -18px;
    top: 72px;
    width: 58px;
  }

  .theme__crown {
    left: -18px;
    bottom: -24px;
    width: 58px;
  }

  /* World */
  .world {
    --section-boundary-overlap: 115px;
    margin-top: -115px;
    padding-block: 72px 133px;
  }

  .world__inner {
    width: calc(100% - (var(--section-side-space) * 2));
  }

  .world__title {
    width: min(112vw, 560px);
    margin-left: 50%;
    margin-bottom: 24px;
    transform: translateX(-50%);
  }

  .world__planet {
    right: -8px;
    top: 132px;
    width: 86px;
  }

  .world__content {
    width: 100%;
  }

  .world__lead-title {
    font-size: clamp(22px, 5.7vw, 32px);
    line-height: 1.22;
  }

  .world__download-title {
    font-size: clamp(18px, 5.2vw, 22px);
    line-height: 1.3;
  }

  .world__info {
    padding: 16px 22px;
    border-radius: 28px;
  }

  .world__info--moon::before,
  .world__info--warp::before {
    border-radius: 28px;
  }

  .world__info--warp {
    padding-right: 88px;
  }

  .world__info p,
  .world__free-text {
    font-size: 14px;
    line-height: 23px;
  }

  .world__planet {
    right: -18px;
    top: 50%;
    width: 96px;
  }

  .world__version {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .world__version-label {
    border-right: 0;
    border-bottom: 2px solid var(--color-green-line);
  }

  .world__buttons {
    flex-direction: column;
    align-items: center;
    gap: 18px;
  }

  .world__button {
    width: min(82vw, 360px);
  }

  /* Ceremony */
  .ceremony {
    --section-boundary-overlap: 115px;
    margin-top: -115px;
    padding-block: 72px 86px;
  }

  .ceremony__title {
    width: min(112vw, 520px);
    margin-left: 50%;
    margin-bottom: -42px;
    transform: translate(-50%, 18px);
  }

  .ceremony__panel {
    padding: 66px 18px 34px;
    border-width: 5px;
  }

  .ceremony__rocket {
    right: clamp(-58px, calc(var(--section-side-space) * -1.3), -36px);
    top: clamp(78px, 17vw, 110px);
    width: clamp(100px, 24vw, 140px);
  }

  .ceremony__astronaut {
    left: calc(var(--section-side-space) * -1.05);
    bottom: 500px;
    width: clamp(70px, 22vw, 96px);
  }

  .ceremony__date,
  .ceremony__place {
    margin-top: 16px;
    font-size: clamp(25px, 7vw, 34px);
    line-height: 1.35;
  }

  .ceremony__date-num {
    font-size: clamp(28px, 8vw, 38px);
  }

  .ceremony-prizes {
    justify-content: flex-start;
    gap: 12px;
    font-size: clamp(18px, 5vw, 24px);
  }

  .ceremony-prizes li {
    width: 100%;
  }

  .ceremony-prizes img {
    width: 28px;
  }

  .ceremony-guests {
    grid-template-columns: 1fr;
    gap: 46px;
    margin-top: 38px;
  }

  .ceremony-guest {
    padding: 42px 18px 24px;
    border-width: 5px;
  }

  .ceremony-guest__label {
    top: -20px;
    width: min(220px, 82%);
  }

  .ceremony-guest__role {
    font-size: 15px;
  }

  .ceremony-guest__name {
    font-size: clamp(30px, 9vw, 38px);
  }

  .ceremony-guest__desc {
    font-size: 14px;
    line-height: 1.65;
  }

  /* Movie */
  .movie {
    --section-boundary-overlap: 115px;
    margin-top: -115px;
    padding-block: 72px 184px;
  }

  .movie__title {
    width: min(112vw, 520px);
    margin-left: 50%;
    margin-bottom: -18px;
    transform: translateX(-50%);
  }

  .movie__frame {
    width: calc(100% - 24px);
    padding: 6px;
  }

  .movie__frame-layer--01 {
    inset: -14px -18px 14px 18px;
    background: #3a72ff;
  }

  .movie__frame-layer--02 {
    inset: -28px -32px 28px 32px;
  }

  .movie__frame-layer--03 {
    inset: -42px -46px 42px 46px;
  }

  .movie__shooting-star--01 {
    right: -22px;
    bottom: -42px;
    width: 42vw;
  }

  .movie__shooting-star--02 {
    right: 38px;
    bottom: -84px;
    width: 44vw;
  }

  /* Trial */
  .trial {
    --section-boundary-overlap: 115px;
    margin-top: -115px;
    padding-block: 72px 148px;
  }

  .trial__message-stack {
    margin: 28px 0 34px;
  }

  .trial__message,
  .trial__message-shadow {
    font-size: clamp(22px, 6.4vw, 28px);
    white-space: normal;
    text-wrap: balance;
  }

  .trial__message-break {
    display: none;
  }

  .trial__schedule {
    grid-template-columns: 1fr;
    gap: 20px;
    width: 100%;
    min-height: 0;
    padding: 34px 24px 30px;
    border-radius: 56px 0 0 56px;
  }

  .trial__schedule-heading {
    font-size: clamp(22px, 6vw, 26px);
  }

  .trial__free,
  .trial__schedule-heading p:nth-child(2) {
    font-size: clamp(20px, 5.6vw, 28px);
  }

  .trial__schedule-heading p:nth-child(3) {
    font-size: clamp(26px, 7vw, 34.56px);
  }

  .trial__dates {
    display: grid;
    row-gap: 0.8em;
    font-size: 12px;
    line-height: 1.65;
  }

  .trial__dates li,
  .trial__dates .trial__date-with-note {
    display: block;
  }

  .trial__dates li>span {
    display: block;
  }

  .trial__beginner-mark {
    right: -16px;
    top: -48px;
    width: 62px;
  }

  .trial__planet {
    left: clamp(-26px, -6vw, -18px);
    bottom: clamp(24px, calc(210px - 31vw), 88px);
    width: clamp(84px, 20vw, 94px);
  }

  .trial__entry {
    width: min(82vw, 360px);
    margin-top: 32px;
  }

  .trial__note {
    margin-top: 30px;
    font-size: 12px;
  }

  /* Entry */
  .entry {
    --section-boundary-overlap: 115px;
    margin-top: -115px;
    padding-block: 112px 130px;
  }

  .entry__title {
    width: min(440px, 100%);
    margin: 24px auto 30px;
  }

  .entry-rule,
  .entry-details {
    gap: 14px;
  }

  .entry-rule__title {
    font-size: 21px;
    line-height: 30px;
  }

  .entry-steps {
    grid-template-columns: 1fr;
    gap: 32px;
    margin-bottom: 46px;
  }

  .entry-step__number-row {
    margin-bottom: 10px;
  }

  .entry-step__image {
    width: min(132px, 62vw);
  }

  .entry-step__badge {
    right: calc(50% - 92px);
  }

  .entry-step__title {
    margin-bottom: 14px;
  }

  .entry-step__text {
    width: min(300px, 100%);
  }

  .entry-details {
    margin-bottom: 34px;
  }

  .entry-details__frame {
    padding: 26px 14px 22px;
  }

  .entry-details__item h4 {
    padding: 12px 14px;
    font-size: clamp(19px, 5.2vw, 23px);
    line-height: 1.3;
  }

  .entry-details__item p {
    padding: 12px 16px;
    font-size: 15px;
    line-height: 1.55;
  }

  .entry__cta {
    width: min(452px, 86vw);
    max-width: none;
  }

  /* Criteria */
  .criteria {
    --section-boundary-overlap: 115px;
    margin-top: -115px;
    padding-block: 112px 92px;
  }

  .criteria__title {
    width: min(520px, calc(100vw - 40px));
    margin-left: 50%;
    margin-bottom: -42px;
    transform: translate(-50%, 18px);
  }

  .criteria__panel {
    min-height: auto;
    padding: 74px 18px 54px;
    border-width: 5px;
  }

  .criteria__ufo {
    left: clamp(-22px, calc(24px - 7vw), -4px);
    top: clamp(22px, calc(54px - 5vw), 34px);
    width: clamp(58px, 14vw, 82px);
  }

  .criteria__intro {
    margin-bottom: 38px;
    font-size: clamp(18px, 5vw, 24px);
    line-height: 1.45;
    text-wrap: balance;
    white-space: normal;
  }

  .criteria__intro-break {
    display: none;
  }

  .criteria__intro-number {
    font-size: clamp(28px, 7.5vw, 38px);
    line-height: 1;
  }

  .criteria__intro-accent {
    font-size: clamp(23px, 6.5vw, 32px);
    line-height: 1;
  }

  .criteria__list {
    gap: 38px;
  }

  .criteria__head {
    grid-template-columns: minmax(28px, 1fr) auto minmax(28px, 1fr);
    gap: 12px;
    margin-bottom: 14px;
  }

  .criteria__heading {
    gap: 10px;
    min-width: 0;
    font-size: clamp(24px, 7vw, 30px);
    line-height: 1.35;
    letter-spacing: 0.06em;
  }

  .criteria__heading img {
    width: calc(var(--criteria-icon-width, 22px) * 0.9);
    height: auto;
  }

  .criteria__text {
    font-size: 15px;
    line-height: 1.65;
  }

  .criteria__cloud--left {
    left: -34px;
    top: 870px;
    width: clamp(112px, 36vw, 160px);
  }

  .criteria__cloud--right {
    right: -42px;
    top: auto;
    bottom: 170px;
    width: clamp(120px, 38vw, 170px);
  }

  /* Concept */
  .concept {
    --section-boundary-overlap: 115px;
    margin-top: -115px;
    padding-block: 115px 68px;
  }

  .concept__inner {
    min-height: clamp(730px, 174vw, 800px);
  }

  .concept__plane {
    top: 16px;
    right: -12px;
    width: clamp(154px, 42vw, 228px);
  }

  .concept__cloud--title {
    left: 50%;
    top: 36px;
    width: clamp(500px, 144vw, 650px);
    transform: translateX(-50%);
  }

  .concept__title {
    left: 18%;
    top: 43%;
    font-size: clamp(22px, 6.4vw, 30px);
    line-height: 1.25;
  }

  .concept__title-gradient {
    font-size: clamp(23px, 6.8vw, 31px);
  }

  .concept__cloud--body {
    top: clamp(180px, 40vw, 214px);
    width: clamp(760px, 205vw, 860px);
    transform: translateX(-47%);
  }

  .concept__body-text {
    left: calc(50% - clamp(18px, 5vw, 24px));
    top: clamp(86px, 16vw, 110px);
    width: min(400px, calc(100vw - 88px));
    font-size: clamp(15px, 4.2vw, 21px);
    line-height: 1.47;
  }

  .concept__hearts {
    width: clamp(66px, 20vw, 86px);
    margin: 10px auto 8px;
  }

  .concept__bird--01 {
    left: clamp(19%, calc(43% - 5vw), 24%);
    bottom: 13%;
    width: clamp(54px, 15vw, 76px);
  }

  .concept__bird--02 {
    left: clamp(29%, calc(53% - 5vw), 34%);
    bottom: 8%;
    width: clamp(44px, 12vw, 60px);
  }

  @media (min-width: 500px) {
    .concept__bird--01 {
      left: 17%;
    }

    .concept__bird--02 {
      left: 25%;
    }
  }

  /* CTA */
  .cta-section__inner {
    width: calc(100% - 32px);
    padding-top: 50px;
  }

  .cta-section__cloud--01 {
    top: 148px;
    left: 16%;
    width: clamp(144px, 54vw, 218px);
  }

  .cta-section__cloud--02 {
    top: 294px;
    left: -52px;
    width: clamp(92px, 33vw, 132px);
  }

  .cta-section__cloud--03 {
    top: 324px;
    right: -48px;
    width: clamp(112px, 38vw, 154px);
  }

  .cta-section__cloud--04 {
    top: 178px;
    right: -12px;
    width: clamp(90px, 30vw, 124px);
  }

  .cta-section__headline {
    min-height: 96px;
  }

  .cta-section__title {
    font-size: clamp(18px, 5.7vw, 25px);
    line-height: 1.28;
    -webkit-text-stroke-width: 3px;
  }

  .cta-section__break {
    display: block;
  }

  .cta-section__deco {
    position: absolute;
    top: 38px;
    width: clamp(58px, 24vw, 96px);
  }

  .cta-section__button {
    width: min(452px, 86vw);
    margin-top: 20px;
  }

  .cta-section__city {
    margin-top: 30px;
  }

  /* Previous Works */
  .previous-works {
    padding: 38px 0 60px;
  }

  .previous-works__title-image {
    width: min(460px, calc(100% - 32px));
  }

  .previous-works__slider {
    margin-top: 30px;
  }

  .works-track {
    gap: 14px;
  }

  .works-slide {
    width: clamp(230px, 72vw, 280px);
  }

  .works-thumb {
    height: clamp(132px, 40vw, 164px);
    border-width: 5px;
  }

  .works-medal {
    width: 44px;
  }

  .works-caption {
    margin-top: 14px;
    font-size: 14px;
  }

  .previous-works__nav {
    margin-top: 22px;
  }

  .works-control,
  .works-control__icon {
    width: 54px;
  }

  .awards-cta {
    gap: 12px;
    max-width: calc(100% - 24px);
    margin-top: 30px;
    font-size: clamp(18px, 5.6vw, 24px);
  }

  .awards-cta__line {
    display: block;
  }

  .awards-cta__icon {
    flex: 0 0 auto;
    width: 24px;
    height: 24px;
  }

  /* Sponsors */
  .sponsors-section {
    padding: 40px 0 48px;
  }

  .sponsors-section__inner {
    width: calc(100% - 32px);
  }

  .sponsors-section__heading {
    width: min(420px, 100%);
  }

  .sponsors-section__heading--supporter {
    margin-top: 44px;
  }

  .sponsors-section__label {
    gap: 14px;
    margin-bottom: 24px;
    font-size: 18px;
    line-height: 28px;
  }

  .sponsors-logos {
    gap: 24px 28px;
  }

  .sponsor-logo--keio {
    width: 116px;
  }

  .sponsor-logo--keio-esports {
    width: 168px;
  }

  .sponsor-logo--jaxa {
    width: 136px;
  }

  .supporter-block {
    margin-top: 36px;
  }

  .sponsors-logos--companies {
    gap: 24px 22px;
  }

  .sponsors-logos--companies li {
    min-height: 42px;
  }

  .sponsor-logo--asahi-life {
    width: 122px;
  }

  .sponsor-logo--okumura {
    width: 118px;
  }

  .sponsor-logo--omron {
    width: 122px;
  }

  .sponsor-logo--takasago,
  .sponsor-logo--jr-central {
    width: 116px;
  }

  .sponsor-logo--coeteco {
    width: 132px;
  }

  .sponsor-logo--taisei {
    width: 150px;
  }

  .sponsor-logo--ftl-labo {
    width: 220px;
  }

  .sponsor-logo--nippon-signal {
    width: 200px;
  }

  .sponsor-logo--maeda {
    width: 176px;
  }

  .sponsor-logo--frente-sasazuka {
    width: 152px;
  }

  .sponsor-logo--kirarina-keio-kichijoji {
    width: 164px;
  }

  .sponsor-logo--trie-keio-chofu {
    width: 210px;
  }

  .sponsor-logo--seiseki-sc {
    width: 150px;
  }

  .sponsor-logo--tisi {
    width: 170px;
  }

  .sponsor-logo--trip-caption {
    width: min(260px, 84vw);
  }

  .sponsors-text-list {
    gap: 12px 20px;
  }

  .sponsors-text-list li {
    font-size: clamp(19px, 5.5vw, 24px);
  }

  .sponsors-logos--support {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    justify-items: center;
    align-items: center;
    gap: 24px 16px;
    margin-top: 34px;
  }

  .sponsors-logos--support li {
    grid-column: auto;
    width: 100%;
  }

  .sponsors-logos--support li:nth-child(4),
  .sponsors-logos--support li:nth-child(5) {
    grid-column: auto;
  }

  .sponsors-logos--support li:last-child {
    grid-column: 1 / -1;
  }

  .sponsor-logo--sagamihara-esports {
    width: min(150px, 100%);
  }

  .sponsor-logo--setagaya-machinaka {
    width: min(150px, 100%);
  }

  .sponsor-logo--setagaya-industry {
    width: min(160px, 100%);
  }

  .sponsor-logo--juki-fandom {
    width: min(142px, 100%);
  }

  .sponsor-logo--shimokita-robofes {
    width: min(120px, 100%);
  }

  .sponsor-logo--taiken {
    width: min(230px, 70vw);
  }

  /* FAQ */
  .faq-section {
    padding: 40px 0 140px;
  }

  .faq-section__inner {
    width: calc(100% - 32px);
  }

  .faq-section__title {
    width: min(420px, 100%);
    margin-bottom: 34px;
  }

  .faq-item {
    border-top-width: 3px;
  }

  .faq-item:last-child {
    border-bottom-width: 3px;
  }

  .faq-q {
    grid-template-columns: auto 1fr auto;
    gap: 8px;
    padding: 22px 0 16px;
  }

  .faq-label,
  .faq-question {
    font-size: clamp(16px, 4.4vw, 18px);
    line-height: 1.55;
  }

  .faq-caret {
    width: 18px;
    height: 12px;
  }

  .faq-a {
    gap: 8px;
    padding: 0 0 22px;
  }

  .faq-a .faq-label {
    line-height: 1.6;
  }

  .faq-answer {
    font-size: clamp(15px, 4vw, 17px);
    line-height: 1.65;
  }

  .faq-answer p+p {
    margin-top: 14px;
  }

  /* Footer */
  .footer-inner {
    width: calc(100% - 32px);
    gap: 34px;
    padding: 44px 0 48px;
  }

  .footer-logo {
    width: min(330px, 100%);
  }

  .footer-note {
    margin-top: 14px;
    font-size: 15px;
    line-height: 28px;
  }

  .footer-msg {
    width: min(320px, 100%);
    margin-bottom: 22px;
  }

  .btn-footer {
    width: min(330px, 100%);
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: 10px;
    margin-top: 30px;
  }

  .footer-links a {
    font-size: 13px;
    line-height: 22px;
    white-space: normal;
  }

  .footer-disclaimer {
    width: min(330px, 100%);
    margin-top: 26px;
    font-size: 10px;
    line-height: 1.55;
  }

  .footer-disclaimer .no-break {
    white-space: normal;
  }
}

/* ---------- 531px以下 ---------- */
@media (max-width: 531px) {

  /* Base / Reset */
  :root {
    --header-height: 56px;
  }

  /* Header */
  .site-header__inner {
    width: calc(100% - 16px);
  }

  .site-header__logo {
    width: min(68vw, 240px);
  }

  /* Mobile menu */
  .menu-toggle {
    width: 38px;
    height: 38px;
  }

  .menu-toggle span {
    left: 6px;
    width: 26px;
  }

  .menu-toggle span:nth-child(1) {
    top: 11px;
  }

  .menu-toggle span:nth-child(2) {
    top: 19px;
  }

  .menu-toggle span:nth-child(3) {
    top: 27px;
  }

  /* FV */
  .fv__inner {
    /* 531px未満も背景はヘッダー下開始。余白を取りつつ、中央画像とCTAを少し大きめに見せる。 */
    width: min(calc(100% - 16px), 520px);
    padding-top: 16px;
  }

  .fv__entry {
    top: min(50.8vw, 575px);
    width: min(62vw, 280px);
    height: auto;
  }

  .fv__entry img {
    height: auto;
  }
}