* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: #fff9fc;
  color: #4b4050;
  font-family:
    "Noto Sans JP",
    "Yu Gothic",
    "Hiragino Kaku Gothic ProN",
    sans-serif;
  line-height: 1.9;
}


/* ==================================================
   HEADER
================================================== */

.site-header {
  width: min(1150px, 92%);
  margin: 0 auto;
  padding: 24px 0;

  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  color: inherit;
  text-decoration: none;
}

.brand-main {
  display: block;
  font-family: Georgia, serif;
  font-size: 27px;
  letter-spacing: 0.08em;
  color: #9b6c91;
}

.brand-sub {
  display: block;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: #9c8d99;
}

.back-link {
  color: #8f7188;
  text-decoration: none;
  font-size: 13px;
}

.back-link:hover {
  opacity: 0.65;
}


/* ==================================================
   HERO
================================================== */

.hero {
  position: relative;
  width: 100%;
  height: 560px;

  overflow: hidden;

  display: flex;
  align-items: center;
  justify-content: center;

  text-align: center;

  background: #eadcf0;

  border-top: 1px solid rgba(190,150,180,0.15);
  border-bottom: 1px solid rgba(190,150,180,0.15);
}

.hero-image {
  position: absolute;

  inset: 0;

  width: 100%;
  height: 100%;

  object-fit: cover;
  object-position: center center;

  display: block;
}

.hero-overlay {
  position: absolute;

  inset: 0;

  background:
    linear-gradient(
      to bottom,
      rgba(255,245,252,0.04),
      rgba(255,245,252,0.10)
    );

  z-index: 1;
}

.hero-inner {
  position: relative;
  z-index: 2;

  width: 100%;
  max-width: 1000px;

  padding: 60px 30px;

  text-align: center;

  text-shadow:
    0 2px 10px rgba(255,255,255,0.92),
    0 1px 3px rgba(70,40,65,0.25);
}

.hero-kicker {
  margin: 0 0 20px;

  font-family: Georgia, serif;
  font-size: 12px;
  letter-spacing: 0.22em;

  color: #604158;

  text-shadow:
    0 1px 7px rgba(255,255,255,0.95);
}

.hero h1 {
  margin: 0;

  font-family:
    Georgia,
    "Yu Mincho",
    serif;

  font-size: clamp(38px, 6vw, 70px);
  font-weight: 400;
  letter-spacing: 0.08em;

  color: #4d3449;

  text-shadow:
    0 2px 12px rgba(255,255,255,0.95),
    0 2px 4px rgba(70,40,65,0.25);
}

.hero-lead {
  margin: 28px 0 0;

  font-family: "Yu Mincho", serif;

  font-size: clamp(18px, 2.5vw, 25px);
  line-height: 2;

  color: #583d52;

  text-shadow:
    0 2px 9px rgba(255,255,255,0.95),
    0 1px 3px rgba(70,40,65,0.20);
}


/* ==================================================
   COMMON
================================================== */

.intro,
.values {
  width: min(1000px, 90%);
  margin: 0 auto;
}

.kicker {
  margin: 0 0 12px;

  font-family: Georgia, serif;
  font-size: 11px;
  letter-spacing: 0.2em;

  color: #a47b9b;
}

h2 {
  margin: 0 0 25px;

  font-family:
    Georgia,
    "Yu Mincho",
    serif;

  font-weight: 400;
  letter-spacing: 0.08em;

  color: #6d5368;
}


/* ==================================================
   INTRO
================================================== */

.intro {
  padding: 110px 0 100px;
  text-align: center;
}

.intro h2 {
  font-size: clamp(28px, 4vw, 42px);
}

.intro .lead {
  margin: 0 auto 35px;

  font-size: 17px;
  color: #766775;
}

.intro p:not(.kicker):not(.lead) {
  margin: 18px 0;
  color: #756873;
}


/* ==================================================
   VALUES
================================================== */

.values {
  padding: 30px 0 120px;
}

.section-head {
  text-align: center;
  margin-bottom: 45px;
}

.section-head h2 {
  font-size: clamp(28px, 4vw, 40px);
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}

.value-card {
  padding: 42px 30px;

  text-align: center;

  background: rgba(255,255,255,0.75);

  border: 1px solid rgba(177,137,169,0.18);
  border-radius: 18px;

  box-shadow:
    0 12px 35px rgba(120,80,110,0.07);
}

.value-number {
  display: block;

  margin-bottom: 12px;

  font-family: Georgia, serif;
  font-size: 12px;
  letter-spacing: 0.2em;

  color: #b08ba9;
}

.value-card h3 {
  margin: 0 0 18px;

  font-family:
    Georgia,
    "Yu Mincho",
    serif;

  font-size: 27px;
  font-weight: 400;

  color: #765b70;
}

.value-card p {
  margin: 0;

  font-size: 14px;
  color: #796d77;
}


/* ==================================================
   MESSAGE
================================================== */

.alliance-message {
  width: 100%;
  padding: 110px 20px;

  text-align: center;

  background:
    linear-gradient(
      180deg,
      #f9edf6 0%,
      #f5e6f1 100%
    );
}

.message-inner {
  width: min(800px, 90%);
  margin: 0 auto;
}

.message-inner h2 {
  font-size: clamp(30px, 5vw, 48px);
}

.message-inner p:not(.kicker) {
  margin: 20px 0;
  color: #6f626c;
}


/* ==================================================
   FINAL
================================================== */

.final {
  padding: 130px 20px 140px;

  text-align: center;

  background: #fffafd;
}

.final-kicker {
  margin: 0 0 20px;

  font-family: Georgia, serif;
  font-size: 11px;
  letter-spacing: 0.2em;

  color: #a47b9b;
}

.final h2 {
  margin-bottom: 15px;

  font-family: Georgia, serif;
  font-size: clamp(32px, 6vw, 58px);
  font-weight: 400;

  color: #7a5c73;
}

.final > p:not(.final-kicker) {
  margin-bottom: 40px;

  font-size: 17px;
  color: #806f7c;
}

.home-button {
  display: inline-block;

  padding: 13px 30px;

  border: 1px solid #c8a7bf;
  border-radius: 999px;

  color: #7c6075;
  text-decoration: none;

  font-size: 13px;
  letter-spacing: 0.05em;

  transition:
    background 0.25s ease,
    color 0.25s ease;
}

.home-button:hover {
  background: #c8a7bf;
  color: white;
}


/* ==================================================
   FOOTER
================================================== */

.footer {
  padding: 55px 20px;

  text-align: center;

  background: #f5edf3;
}

.footer h2 {
  margin-bottom: 8px;

  font-family: Georgia, serif;
  font-size: 24px;
}

.footer p {
  margin: 0 0 18px;

  font-family: Georgia, serif;
  font-size: 11px;
  letter-spacing: 0.15em;

  color: #8c7887;
}

.footer a {
  color: #8a6d83;
  text-decoration: none;
  font-size: 12px;
}

.footer a:hover {
  opacity: 0.65;
}


/* ==================================================
   MOBILE
================================================== */

@media (max-width: 700px) {

  .site-header {
    padding: 18px 0;
  }

  .brand-main {
    font-size: 23px;
  }

  .back-link {
    font-size: 11px;
  }

  .hero {
    height: 430px;
    min-height: 430px;
  }

  .hero-image {
    object-position: center center;
  }

  .hero-inner {
    padding: 50px 15px;
  }

  .hero-kicker {
    font-size: 10px;
    letter-spacing: 0.15em;
  }

  .hero h1 {
    font-size: clamp(32px, 9vw, 48px);
    line-height: 1.5;
  }

  .hero-lead {
    font-size: 18px;
  }

  .intro {
    padding: 80px 0;
  }

  .values {
    padding-bottom: 80px;
  }

  .value-grid {
    grid-template-columns: 1fr;
  }

  .value-card {
    padding: 35px 25px;
  }

  .alliance-message {
    padding: 80px 20px;
  }

  .final {
    padding: 90px 20px 100px;
  }

}