:root {
  --black: #0e0e0e;
  --text: #111111;
  --muted: #3a3a3a;
  --line: #d9d9d9;
  --gray: #f4f4f4;
  --accent: #e75a3c;
  --accent-dark: #c3452b;
  --pill: #f2c23a;
  --link: #222222;
  --footer-bg: #0b0b0b;
  --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Noto Sans JP', sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
.content-link {
  color: var(--text);
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 2px;
}
.content-link:hover {
  text-decoration-thickness: 2px;
}
.container {
  width: min(1360px, 100% - 80px);
  margin: 0 auto;
}
header {
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0 64px;
}
.brand {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.brand-title {
  font-weight: 800;
  letter-spacing: 1px;
  font-size: 30px;
  color: #0d0d0d;
}
.brand-sub {
  margin-top: 4px;
  font-size: 14px;
  font-weight: 500;
  color: #6a6a6a;
  letter-spacing: 0.2px;
}
nav {
  display: flex;
  align-items: center;
  gap: 0;
  font-size: 16px;
  color: var(--link);
}
.nav-link {
  padding: 8px 16px;
  font-weight: 700;
  position: relative;
}
.nav-link + .nav-link {
  border-left: 1px solid #d3d3d3;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: -6px;
  height: 2px;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.15s ease;
}
.nav-link:hover {
  color: var(--accent);
}
.nav-link:hover::after {
  opacity: 0.4;
}
.nav-link.active {
  color: var(--text);
}
.nav-link.active::after {
  opacity: 1;
}
.cta {
  background: var(--accent);
  color: #fff;
  padding: 10px 16px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 13px;
}
.hero {
  width: 100%;
  padding: 72px 0;
  position: relative;
  min-height: 520px;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.72) 28%, rgba(255, 255, 255, 0.42) 64%, rgba(255, 255, 255, 0.08)),
    url("images/hero_background.jpg") right center/60% auto no-repeat;
  background-blend-mode: screen;
  overflow: hidden;
}
.hero.hero-compact {
  min-height: 260px;
  padding: 36px 0;
}
.hero-inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
  align-items: center;
}
.hero::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 200px;
  background: linear-gradient(to bottom, rgba(255,255,255,0) 0%, rgba(255,255,255,0.6) 60%, #ffffff 100%);
  pointer-events: none;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255,255,255,1) 0%, rgba(255,255,255,1) 40%, rgba(255,255,255,0.75) 50%, rgba(255,255,255,0) 100%);
  pointer-events: none;
  z-index: 0;
}
.hero > * {
  position: relative;
  z-index: 1;
}
.hero-copy h1 {
  margin: 0 0 10px;
  font-size: 32px;
  letter-spacing: 0.04em;
  font-weight: 700;
}
.hero-title-sub {
  font-size: 0.72em;
  font-weight: 600;
}
.hero-title-accent {
  color: var(--accent);
}
.hero-copy .date {
  font-size: 28px;
  font-weight: 700;
  margin: 0 0 10px;
}
.hero-copy p {
  margin: 6px 0;
  font-size: 14px;
  color: var(--muted);
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
}
.hero-button {
  background: var(--accent);
  color: #fff;
  padding: 12px 20px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 13px;
  box-shadow: var(--card-shadow);
  border: none;
}
.hero-actions small {
  color: var(--muted);
  font-size: 12px;
}
.hero-illust {
  background: var(--gray);
  border-radius: 18px;
  padding: 28px;
  box-shadow: var(--card-shadow);
}
.hero-img {
  width: 100%;
  display: block;
}
.feature-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  padding: 28px 0 16px;
  text-align: center;
  font-size: 13px;
  color: var(--muted);
}
.feature {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.feature-icon {
  height: 48px;
}
.info-section {
  padding: 16px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}
.info-grid {
  display: grid;
  grid-template-columns: 120px 140px 1fr;
  gap: 16px;
  align-items: center;
  border-top: 1px solid var(--line);
}
.info-row { padding: 12px 0; border-bottom: 1px solid var(--line); }
.info-title { font-weight: 700; }
.info-link { color: #000; }
.btn-more {
  margin-top: 12px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12px;
  color: var(--muted);
}
.about {
  padding: 48px 0 0;
}
.about-inner {
  padding: 0 0 40px;
}
.about h2 {
  margin: 0 0 24px;
  letter-spacing: 0.04em;
}
.about-divider {
  width: 140px;
  height: 3px;
  background: var(--accent);
  border-radius: 999px;
  margin: 30px auto 30px 0;
}
.about-invite {
  margin-top: 28px;
  max-width: 100%;
  margin-left: 0;
  margin-right: 0;
}
.about-invite .section-title {
  text-align: left;
}
.about-invite-body {
  margin: 0 auto;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 760px;
  text-align: left;
}
.about-list {
  list-style: disc;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 900px;
}
.about-list li + li {
  margin-top: 8px;
}
.about-list-publications {
  list-style: none;
  padding-left: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}
.about-list-publications li {
  padding: 6px 0 8px;
  border-bottom: 1px dashed #e5e5e5;
}
.about-list-publications li:last-child {
  border-bottom: none;
}
.about-list-publications .pub-title {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: #1a1a1a;
  line-height: 1.6;
  text-decoration: none;
}
.about-list-publications a.pub-title:hover {
  color: var(--accent);
}
.about-list-publications .pub-meta {
  display: block;
  font-size: 12px;
  color: #6a6a6a;
  letter-spacing: 0.04em;
  margin-top: 2px;
}
.about-list-media {
  list-style: none !important;
  padding-left: 0 !important;
  margin: 8px 0 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 18px;
}
.about-list-media .media-item {
  position: relative;
  background: #ffffff;
  border-radius: 10px;
  padding: 14px 14px 12px 16px;
  box-shadow: none;
  border: 1px solid #ececec;
  display: grid;
  gap: 8px;
  overflow: hidden;
}
.about-list-media .media-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: #f0b8a9;
}
.about-list-media .media-meta {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #7a7a7a;
}
.about-list-media .media-title {
  font-size: 16px;
  font-weight: 700;
  color: #1a1a1a;
  line-height: 1.7;
  text-decoration: none;
}
.about-list-media .media-title::after {
  content: "";
}
.about-list-media .media-title:hover {
  color: var(--accent);
}
.faq-nav {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}
.faq-nav a {
  color: var(--accent);
  font-size: 14px;
  text-decoration: none;
}
.faq-nav a:hover {
  text-decoration: underline;
}
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.faq-item {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.faq-q {
  font-weight: 700;
  font-size: 16px;
  color: var(--text);
  margin-bottom: 6px;
}
.faq-a {
  min-height: 18px;
  font-size: 14px;
  color: var(--muted);
}
.member-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.member-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  color: inherit;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 6px 14px rgba(0,0,0,0.06);
}
.member-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 18px rgba(0,0,0,0.08);
}
.member-card .member-role {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.member-card .member-name {
  font-size: 18px;
  font-weight: 700;
}
.member-card .member-aff {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.5;
}
.member-card .member-link {
  margin-top: 4px;
  font-size: 13px;
  color: var(--accent);
  font-weight: 700;
}
.member-card.no-link .member-link {
  color: #999;
}
.section-title {
  margin: 0 0 12px;
  font-size: 28px;
  letter-spacing: 0.04em;
}
.section-title .section-subtitle {
  display: block;
  margin-top: 6px;
  font-size: 18px;
  font-weight: 400;
  color: var(--muted);
  letter-spacing: 0;
}
.about-lead {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.8;
  max-width: 760px;
  text-align: left;
  margin: 0 auto 16px auto;
}
.about h2 small {
  display: block;
  font-size: 18px;
  font-weight: 400;
  margin-top: 4px;
}
.about p {
  font-size: 15px;
  color: var(--muted);
  margin: 16px 0 24px;
  line-height: 1.8;
  max-width: 760px;
  text-align: left;
  margin-left: auto;
  margin-right: auto;
}
.accent-line {
  display: flex;
  gap: 12px;
  align-items: center;
  font-weight: 700;
  font-size: 14px;
}
.accent-line::before,
.accent-line::after {
  content: '';
  display: block;
  height: 4px;
  width: 36px;
  background: linear-gradient(90deg, #f8f0c0, #aed8d1);
}
.about .bg-block {
  background: var(--gray);
  padding: 28px 0 32px;
  margin-top: 24px;
}
footer {
  background: var(--footer-bg);
  color: #f3f3f3;
  padding: 40px 0 32px;
  font-size: 12px;
  margin-top: 0;
}
.footer-brand {
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: 1px;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}
.footer-col strong { display: block; margin-bottom: 8px; }
.footer-col a { display: block; color: #cfcfcf; margin: 6px 0; }
.footer-meta {
  margin-top: 18px;
  color: #bdbdbd;
  line-height: 1.5;
}
@media (max-width: 720px) {
  .header-inner { flex-direction: column; align-items: flex-start; gap: 10px; padding: 0 20px; }
  nav { width: 100%; flex-wrap: wrap; row-gap: 6px; }
  .nav-link { white-space: nowrap; font-size: 13px; padding: 6px 10px; }
  .nav-link + .nav-link { border-left: none; }
}
@media (max-width: 720px) {
  .container { width: min(100%, 100% - 28px); }
  header { padding: 12px 0; }
  .hero { padding: 24px 0 12px; }
  .hero.hero-compact { min-height: 180px; }
  .page-home .hero { padding: 12px 0 6px; min-height: 300px; }
  .feature-bar { padding: 18px 0; }
  .info-section { padding: 12px 0; }
  .info-grid { grid-template-columns: 100px 120px 1fr; }
  .about { padding: 32px 0 0; }
  .about-inner { padding: 0 0 24px; }
  .about .bg-block { padding: 24px 0 40px; }
  footer { padding: 28px 0; }
}