:root {
  --navy: #062f45;
  --deep: #031d2a;
  --ink: #14202b;
  --muted: #637282;
  --aqua: #19b8df;
  --sky: #dff7ff;
  --orange: #f48300;
  --line: #d9e9ef;
  --paper: #f7fbfd;
  --white: #ffffff;
  --shadow: 0 24px 70px rgba(3, 29, 42, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  line-height: 1.8;
}

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

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

.sponsor-page {
  overflow: hidden;
  background:
    radial-gradient(circle at 8% 12%, rgba(25, 184, 223, 0.16), transparent 28%),
    radial-gradient(circle at 92% 38%, rgba(244, 131, 0, 0.12), transparent 24%),
    linear-gradient(180deg, #ffffff 0, #f7fbfd 52%, #ffffff 100%);
}

.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  align-items: end;
  padding: clamp(30px, 5vw, 56px);
  color: var(--white);
  background: var(--deep);
}

.hero__media {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(3, 29, 42, 0.92) 0%, rgba(3, 29, 42, 0.66) 43%, rgba(3, 29, 42, 0.18) 100%),
    linear-gradient(180deg, rgba(3, 29, 42, 0.05), rgba(3, 29, 42, 0.82)),
    url("assets/keimei-team-wide.jpg") center / cover no-repeat;
  transform: scale(1.02);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -12% -26% 48%;
  height: 52%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  transform: rotate(-12deg);
}

.hero__content {
  position: relative;
  z-index: 1;
  width: min(980px, 100%);
  padding: 86px 0 160px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--orange);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 24px;
  font-size: clamp(46px, 8vw, 98px);
  line-height: 1.04;
  letter-spacing: 0;
}

h1 span {
  color: #8ae8ff;
}

h2 {
  margin-bottom: 20px;
  font-size: clamp(30px, 4.8vw, 58px);
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 18px;
  font-size: clamp(25px, 3vw, 34px);
  line-height: 1.32;
}

.mobile-break {
  display: none;
}

.hero__lead {
  width: min(720px, 100%);
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(16px, 2vw, 21px);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  padding: 13px 22px;
  font-weight: 900;
  border: 1px solid transparent;
}

.button--primary {
  color: var(--white);
  background: linear-gradient(135deg, var(--orange), #ffad22);
  box-shadow: 0 18px 36px rgba(244, 131, 0, 0.28);
}

.button--ghost {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.36);
  background: rgba(255, 255, 255, 0.1);
}

.hero__panel {
  position: absolute;
  left: clamp(18px, 5vw, 56px);
  right: clamp(18px, 5vw, 56px);
  bottom: clamp(18px, 4vw, 42px);
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  max-width: 900px;
  background: rgba(255, 255, 255, 0.24);
  backdrop-filter: blur(14px);
}

.hero__panel div {
  padding: 18px;
  background: rgba(3, 29, 42, 0.72);
}

.hero__panel span {
  display: block;
  margin-bottom: 6px;
  color: var(--orange);
  font-size: 22px;
  font-weight: 900;
  line-height: 1;
}

.hero__panel strong {
  display: block;
  color: var(--white);
  font-size: 14px;
  line-height: 1.45;
}

.section {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: clamp(70px, 9vw, 120px) 0;
}

.intro {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: clamp(30px, 6vw, 90px);
  align-items: start;
}

.section__label {
  color: var(--aqua);
  font-weight: 900;
  font-size: 13px;
}

.intro__body p,
.support__content p,
.message__box p,
.cta p,
.value-card p {
  color: var(--muted);
  font-size: 17px;
}

.intro__title {
  white-space: nowrap;
  font-size: clamp(30px, 4.1vw, 52px);
}

.photo-strip {
  display: grid;
  grid-template-columns: 1.1fr 0.8fr 1.1fr;
  gap: 12px;
  width: min(1320px, calc(100% - 36px));
  margin: 0 auto;
}

.photo-strip img {
  width: 100%;
  height: clamp(260px, 32vw, 460px);
  object-fit: cover;
}

.photo-strip img:nth-child(2) {
  margin-top: 52px;
}

.partner {
  position: relative;
}

.partner__headline {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  align-items: end;
  margin-bottom: 34px;
  padding: 34px clamp(24px, 4vw, 46px);
  color: var(--white);
  background: var(--navy);
}

.partner__headline h2 {
  margin-bottom: 0;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.value-card {
  min-height: 430px;
  padding: clamp(28px, 4vw, 46px);
  background: var(--white);
  border-top: 6px solid var(--aqua);
  box-shadow: var(--shadow);
}

.value-card:nth-child(2) {
  border-top-color: var(--orange);
}

.value-card span {
  display: block;
  margin-bottom: 76px;
  color: var(--orange);
  font-weight: 900;
  font-size: 20px;
}

.support {
  display: grid;
  grid-template-columns: minmax(0, 0.94fr) minmax(0, 1.06fr);
  gap: clamp(32px, 6vw, 74px);
  align-items: center;
}

.support__image {
  position: relative;
}

.support__image::before {
  content: "";
  position: absolute;
  inset: 28px -28px -28px 28px;
  z-index: -1;
  background: linear-gradient(135deg, var(--sky), #fff2df);
}

.support__image img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.support-list {
  display: grid;
  gap: 14px;
}

.support-list div {
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

.support-list strong {
  display: block;
  margin-bottom: 6px;
  color: var(--navy);
  font-size: 20px;
}

.support-list p {
  margin-bottom: 0;
}

.message {
  width: 100%;
  padding: clamp(72px, 9vw, 130px) 18px;
  background:
    linear-gradient(90deg, rgba(3, 29, 42, 0.86), rgba(3, 29, 42, 0.48)),
    url("assets/about-lineup.jpg") center / cover no-repeat;
}

.message__box {
  width: min(1060px, 100%);
  margin: 0 auto;
  padding: clamp(32px, 5vw, 58px);
  color: var(--white);
  background: rgba(3, 29, 42, 0.86);
  border: 1px solid rgba(255, 255, 255, 0.22);
}

.message__box h2 {
  font-size: clamp(36px, 6vw, 76px);
}

.message__box p {
  color: rgba(255, 255, 255, 0.84);
}

.cta {
  padding: clamp(76px, 10vw, 140px) 18px;
  background: var(--white);
}

.cta__inner {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: clamp(28px, 6vw, 80px);
  align-items: center;
  width: min(1100px, 100%);
  margin: 0 auto;
}

.cta__inner img {
  width: 100%;
  padding: 26px;
  background: var(--paper);
  border: 1px solid var(--line);
}

.cta h2 {
  margin-bottom: 18px;
}

.cta .button {
  margin-top: 10px;
}

@media (max-width: 900px) {
  .hero {
    padding: 22px;
  }

  .hero__media {
    background-position: 58% center;
  }

  .hero__content {
    padding: 54px 0 245px;
  }

  .hero__panel,
  .value-grid,
  .support,
  .cta__inner,
  .intro {
    grid-template-columns: 1fr;
  }

  .hero__panel {
    left: 22px;
    right: 22px;
  }

  .photo-strip {
    grid-template-columns: 1fr;
  }

  .photo-strip img,
  .photo-strip img:nth-child(2) {
    height: 310px;
    margin-top: 0;
  }

  .partner__headline {
    display: block;
  }

  .intro__title {
    white-space: normal;
  }

  .value-card {
    min-height: auto;
  }

  .value-card span {
    margin-bottom: 34px;
  }

  .support__image::before {
    inset: 16px -14px -16px 14px;
  }

  .cta__inner img {
    width: min(280px, 100%);
  }
}

@media (max-width: 540px) {
  h1 {
    font-size: 42px;
  }

  h2 {
    font-size: 30px;
  }

  .button {
    width: 100%;
  }

  .mobile-break {
    display: block;
  }

  .hero__panel div {
    padding: 14px;
  }
}