@charset "utf-8";

:root {
  --accent: #D02227;
  --text: #202020;
  --text-sub: #595959;
  --border: #e3e3e3;
  --bg-alt: #F9F9F9;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 62.5%;
}

body {
  margin: 0;
  padding: 0;
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic Pro", "游ゴシック", YuGothic, "メイリオ", Meiryo, sans-serif;
  font-size: 1.5rem;
  line-height: 1.8;
  color: var(--text);
  background: #fff;
}

img {
  max-width: 100%;
  vertical-align: top;
  border: 0;
}

a {
  color: var(--text);
  text-decoration: none;
  transition: opacity 0.3s;
}

a:hover {
  opacity: 0.7;
}

.wrap {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 24px;
}

/* header */
#header {
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}

#header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

#header .brand {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
}

#header .logo img {
  width: 160px;
}

#header .company-name {
  font-size: 1.3rem;
  color: var(--text-sub);
  line-height: 1.5;
}

#header .company-name strong {
  display: block;
  font-size: 1.6rem;
  color: var(--text);
  letter-spacing: 0.02em;
}

#header .ticker {
  font-size: 1.3rem;
  color: var(--text-sub);
  white-space: nowrap;
}

#header .ticker strong {
  color: var(--accent);
  font-size: 1.5rem;
}

/* hero */
#hero {
  padding: 72px 0 56px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

#hero .en {
  font-family: "Noto Serif JP", serif;
  font-size: 1.3rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin: 0 0 12px;
}

#hero h1 {
  font-size: 2.6rem;
  font-weight: 700;
  margin: 0 0 16px;
  letter-spacing: 0.04em;
}

#hero p {
  color: var(--text-sub);
  font-size: 1.5rem;
  margin: 0;
}

/* section */
.section {
  padding: 56px 0;
}

.section + .section {
  border-top: 1px solid var(--border);
}

.section.alt {
  background: var(--bg-alt);
}

.section-head {
  text-align: center;
  margin-bottom: 36px;
}

.section-head .en {
  display: block;
  font-family: "Noto Serif JP", serif;
  font-size: 1.2rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 8px;
}

.section-head h2 {
  font-size: 2rem;
  margin: 0;
  letter-spacing: 0.04em;
}

/* company overview table */
.overview-table {
  width: 100%;
  table-layout: fixed;
  border-collapse: collapse;
  border-top: 1px solid var(--border);
}

.overview-table th,
.overview-table td {
  border-bottom: 1px solid var(--border);
  padding: 18px 16px;
  text-align: left;
  vertical-align: top;
  font-size: 1.4rem;
  line-height: 1.8;
  overflow-wrap: break-word;
}

.overview-table th {
  width: 200px;
  background: var(--bg-alt);
  font-weight: 700;
  white-space: nowrap;
}

.overview-table .note {
  display: block;
  margin-top: 6px;
  font-size: 1.2rem;
  color: var(--text-sub);
}

.overview-table .todo {
  color: var(--accent);
}

/* group companies */
.group-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.group-list li {
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: #fff;
}

.group-list .logo {
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.group-list .logo img {
  max-height: 56px;
  width: auto;
}

.group-list h3 {
  font-size: 1.5rem;
  margin: 0 0 6px;
}

.group-list .desc {
  font-size: 1.3rem;
  color: var(--text-sub);
  margin: 0 0 18px;
}

.btn-link {
  display: inline-block;
  padding: 10px 28px;
  border: 1px solid var(--text);
  border-radius: 999px;
  font-size: 1.3rem;
}

.btn-link:hover {
  background: var(--text);
  color: #fff;
  opacity: 1;
}

/* link grid (IR / contact) */
.link-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.link-grid li:only-child {
  grid-column: 1 / -1;
  max-width: 480px;
  margin: 0 auto;
}

.link-grid li a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 20px 24px;
  background: #fff;
  font-size: 1.4rem;
}

.link-grid li a::after {
  content: "\2192";
  color: var(--accent);
  margin-left: 12px;
}

.link-grid li a:hover {
  border-color: var(--accent);
  opacity: 1;
}

/* footer */
#footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}

#footer .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

#footer .policy-links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin: 0;
  padding: 0;
  font-size: 1.3rem;
}

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

#footer .copyright {
  font-size: 1.2rem;
  color: var(--text-sub);
}

@media (max-width: 600px) {
  #hero h1 {
    font-size: 2rem;
  }

  .overview-table th {
    width: 120px;
  }

  .group-list,
  .link-grid {
    grid-template-columns: 1fr;
  }

  #footer .wrap {
    flex-direction: column;
    align-items: flex-start;
  }
}