:root {
  --blue: #1f92e8;
  --deep-blue: #0876c9;
  --sky: #e7f7ff;
  --green: #55bf2f;
  --orange: #ff7b1a;
  --yellow: #ffd424;
  --ink: #1f2a37;
  --muted: #5a6878;
  --line: #cfe8f7;
  --paper: #ffffff;
  --soft: #f5fbff;
  --radius: 8px;
  --shadow: 0 12px 30px rgba(40, 131, 190, 0.14);
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", "Meiryo", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 9%, rgba(255, 218, 47, 0.16), transparent 12rem),
    linear-gradient(180deg, #f9fdff 0%, #ffffff 24%, #f6fcff 100%);
  line-height: 1.75;
  overflow-x: hidden;
}

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

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 10px clamp(18px, 5vw, 54px);
  width: 100%;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(31, 146, 232, 0.16);
  backdrop-filter: blur(14px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: clamp(1.18rem, 2vw, 1.72rem);
  font-weight: 800;
  letter-spacing: 0;
  white-space: nowrap;
}

.brand img {
  width: 62px;
  height: 58px;
  object-fit: contain;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2.4vw, 30px);
  font-size: 0.93rem;
  font-weight: 800;
}

.site-nav a {
  position: relative;
  padding: 24px 0 20px;
}

.site-nav a::after {
  position: absolute;
  left: 50%;
  bottom: 10px;
  width: 0;
  height: 3px;
  content: "";
  background: var(--blue);
  border-radius: 999px;
  transform: translateX(-50%);
  transition: width 0.2s ease;
}

.site-nav a:hover::after,
.site-nav a.active::after {
  width: 100%;
}

.menu-button {
  display: none;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--deep-blue);
  background: #eef9ff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(300px, 0.92fr) minmax(360px, 1.08fr);
  gap: 20px;
  align-items: center;
  min-height: 520px;
  padding: clamp(42px, 6vw, 78px) clamp(22px, 6vw, 72px) 76px;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(255,255,255,0.97) 0%, rgba(255,255,255,0.92) 44%, rgba(255,255,255,0.08) 66%),
    linear-gradient(135deg, #f1fbff 0%, #ffffff 48%, #e5f8ff 100%);
}

.hero::before,
.hero::after {
  position: absolute;
  content: "";
  pointer-events: none;
}

.hero::before {
  left: -4%;
  bottom: -70px;
  width: 112%;
  height: 145px;
  background: #fff;
  border-radius: 50% 50% 0 0 / 68% 68% 0 0;
}

.hero::after {
  left: 24px;
  top: 120px;
  width: 210px;
  height: 260px;
  background:
    radial-gradient(circle, var(--yellow) 0 5px, transparent 6px) 0 20px / 76px 76px,
    radial-gradient(circle, rgba(85, 191, 47, 0.52) 0 7px, transparent 8px) 30px 0 / 92px 92px;
  opacity: 0.85;
}

.hero-copy {
  position: relative;
  z-index: 1;
  max-width: 610px;
  min-width: 0;
}

.eyebrow {
  width: fit-content;
  margin: 0 0 16px;
  padding: 4px 12px;
  color: var(--deep-blue);
  font-size: 0.9rem;
  font-weight: 800;
  background: #e9f8ff;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.hero h1 {
  margin: 0;
  color: var(--blue);
  font-size: clamp(2.25rem, 5.4vw, 4.25rem);
  line-height: 1.26;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.hero h1 span {
  display: block;
}

.hero h1 span:last-child {
  color: var(--orange);
}

.hero h1 .green {
  display: inline;
  color: var(--green);
}

.hero p:not(.eyebrow) {
  max-width: 560px;
  margin: 22px 0 0;
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  font-weight: 700;
  overflow-wrap: anywhere;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 12px 24px;
  color: #fff;
  font-weight: 800;
  border-radius: 999px;
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.12);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 28px rgba(0, 0, 0, 0.16);
}

.button.primary {
  background: linear-gradient(180deg, #61ca34 0%, #31a51f 100%);
}

.button.accent {
  background: linear-gradient(180deg, #ff9828 0%, #f36908 100%);
}

.button svg {
  width: 21px;
  height: 21px;
}

.hero-image {
  position: relative;
  z-index: 0;
  align-self: stretch;
  min-height: 370px;
  overflow: hidden;
  border-radius: 0 0 0 72px;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.section {
  width: min(100% - 42px, 1120px);
  margin: 0 auto;
  padding: 38px 0;
}

.section-heading {
  margin: 0 auto 22px;
  text-align: center;
}

.section-heading h2,
.news-title h2 {
  margin: 0;
  color: #111827;
  font-size: clamp(1.68rem, 3.2vw, 2.3rem);
  line-height: 1.35;
  letter-spacing: 0;
}

.section-heading p {
  max-width: 780px;
  margin: 8px auto 0;
  font-weight: 700;
}

.icon-heading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--blue);
}

.icon-heading h2 {
  color: var(--blue);
}

.icon-heading svg,
.news-title svg {
  width: 34px;
  height: 34px;
  color: var(--blue);
}

.season-grid,
.activity-grid,
.about-grid,
.link-grid {
  display: grid;
  gap: 20px;
}

.season-grid {
  grid-template-columns: repeat(4, 1fr);
}

.season-card {
  position: relative;
  min-height: 240px;
  padding: 22px 20px;
  overflow: hidden;
  background: var(--paper);
  border: 2px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.season-card::before {
  position: absolute;
  inset: auto -38px -44px auto;
  width: 150px;
  height: 150px;
  content: "";
  background: var(--tint);
  border-radius: 999px;
}

.season-title {
  display: flex;
  align-items: center;
  gap: 12px;
}

.season-title span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  color: #fff;
  font-size: 1.24rem;
  font-weight: 800;
  background: var(--season);
  border-radius: 999px;
}

.season-title h3 {
  margin: 0;
  color: var(--season);
  font-size: 1.2rem;
  line-height: 1.35;
}

.season-card p {
  position: relative;
  z-index: 1;
  margin: 22px 0 0;
  font-weight: 700;
}

.season-art {
  position: absolute;
  right: 20px;
  bottom: 14px;
  z-index: 1;
  font-size: 4.2rem;
  line-height: 1;
}

.spring { --season: #ff6e88; --tint: rgba(255, 154, 170, 0.2); }
.summer { --season: #168de3; --tint: rgba(31, 146, 232, 0.16); }
.autumn { --season: #ff7b1a; --tint: rgba(255, 123, 26, 0.16); }
.winter { --season: #1b95e8; --tint: rgba(31, 146, 232, 0.12); }

.blue-band {
  width: min(100% - 42px, 1120px);
  padding: 22px 22px 28px;
  background: linear-gradient(180deg, #eaf9ff 0%, #f8fdff 100%);
  border-radius: 8px;
}

.activity-grid {
  grid-template-columns: repeat(3, 1fr);
}

.activity-card {
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.activity-card img {
  width: 100%;
  height: 112px;
  object-fit: cover;
}

.activity-card div {
  padding: 18px 20px 20px;
  text-align: center;
}

.activity-card h3 {
  margin: 0;
  color: var(--blue);
  font-size: 1.28rem;
}

.activity-card p {
  margin: 8px 0 16px;
  font-weight: 700;
}

.activity-card a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-width: 150px;
  min-height: 34px;
  padding: 5px 18px;
  color: var(--blue);
  font-weight: 800;
  border: 2px solid var(--blue);
  border-radius: 999px;
}

.activity-card a svg {
  width: 17px;
  height: 17px;
}

.about {
  padding: 26px 28px 34px;
  background: linear-gradient(135deg, #fffaf0 0%, #fff 56%, #fff6d9 100%);
  border-radius: 8px;
}

.about-grid {
  grid-template-columns: repeat(3, 1fr);
}

.about-grid article {
  display: grid;
  grid-template-columns: 62px 1fr;
  column-gap: 16px;
  align-items: start;
  padding: 22px 20px;
  background: #fff;
  border: 1px solid #f1e5c9;
  border-radius: 8px;
}

.about-grid svg {
  grid-row: span 2;
  width: 58px;
  height: 58px;
  padding: 10px;
  color: var(--green);
  background: #f0ffe9;
  border-radius: 999px;
}

.about-grid article:nth-child(2) svg {
  color: var(--orange);
  background: #fff3e8;
}

.about-grid article:nth-child(3) svg {
  color: var(--blue);
  background: #eef8ff;
}

.about-grid h3 {
  margin: 0;
  color: var(--green);
  font-size: 1.18rem;
}

.about-grid article:nth-child(2) h3 {
  color: var(--orange);
}

.about-grid article:nth-child(3) h3 {
  color: var(--blue);
}

.about-grid p {
  grid-column: 2;
  margin: 4px 0 0;
  font-weight: 700;
}

.sports-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.sport-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 146px;
  padding: 18px 12px;
  font-size: 1.05rem;
  font-weight: 800;
  text-align: center;
  background: #fff;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.sport-card:hover {
  border-color: var(--blue);
  transform: translateY(-2px);
}

.sport-card span {
  margin-bottom: 8px;
  font-size: 2.95rem;
  line-height: 1;
}

.sport-card strong {
  display: block;
  line-height: 1.35;
}

.sport-card small {
  display: block;
  min-height: 22px;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 800;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.link-grid {
  grid-template-columns: repeat(5, 1fr);
}

.link-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 134px;
  padding: 18px 14px 14px;
  text-align: center;
  background: #fff;
  border: 2px solid var(--line);
  border-radius: var(--radius);
}

.link-card > svg {
  width: 46px;
  height: 46px;
  margin-bottom: 8px;
  color: var(--green);
}

.link-card:nth-child(2) > svg {
  color: var(--orange);
}

.link-card:nth-child(3) > svg {
  color: #ff7c8c;
}

.link-card:nth-child(4) > svg {
  color: #a370be;
}

.link-card.instagram > svg {
  color: #e7478a;
}

.link-card strong {
  min-height: 44px;
  font-size: 1rem;
}

.link-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-width: 120px;
  min-height: 28px;
  margin-top: auto;
  padding: 2px 12px;
  font-size: 0.82rem;
  font-weight: 800;
  border: 1px solid #cfd9e4;
  border-radius: 999px;
}

.link-card span svg {
  width: 15px;
  height: 15px;
}

.news {
  width: min(100% - 42px, 1140px);
  margin: 12px auto 0;
  padding: 16px 24px 20px;
  background: linear-gradient(100deg, #f4ffdf 0%, #fff 50%, #f1ffe5 100%);
  border: 1px solid #dcefbf;
  border-radius: 8px;
}

.news-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--blue);
}

.news-title h2 {
  color: var(--blue);
}

.news-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 14px;
}

.news-list a {
  position: relative;
  display: grid;
  grid-template-columns: auto auto 1fr auto;
  gap: 9px;
  align-items: center;
  min-height: 70px;
  padding: 10px 12px;
  font-weight: 800;
  background: rgba(255, 255, 255, 0.56);
  border-right: 1px solid rgba(37, 83, 35, 0.12);
  border-radius: 8px;
}

.news-list time {
  font-weight: 900;
}

.badge {
  padding: 2px 8px;
  color: #fff;
  font-size: 0.75rem;
  line-height: 1.5;
  background: var(--green);
  border-radius: 6px;
}

.news-list svg {
  width: 20px;
  height: 20px;
  color: #7990a5;
}

.site-footer {
  position: relative;
  margin-top: 44px;
  padding-top: 32px;
  color: #263342;
  background:
    linear-gradient(180deg, #e9f9ff 0%, #f7fdff 72%, #38a3dd 72%, #2993d0 100%);
  overflow: hidden;
}

.site-footer::before {
  position: absolute;
  inset: 0 0 auto;
  height: 64px;
  content: "";
  background:
    radial-gradient(circle at 22px 28px, #fff 0 20px, transparent 21px) 0 0 / 108px 54px,
    radial-gradient(circle at 82px 28px, #fff 0 18px, transparent 19px) 0 4px / 132px 54px;
  opacity: 0.9;
}

.footer-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.15fr 1fr auto;
  gap: 30px;
  align-items: center;
  width: min(100% - 42px, 1120px);
  margin: 0 auto;
  padding: 28px 0 32px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-brand strong {
  display: block;
  font-size: 1.55rem;
  font-weight: 900;
}

.footer-brand p {
  margin: 3px 0 0;
  font-weight: 700;
}

address {
  display: grid;
  gap: 8px;
  font-style: normal;
  font-weight: 800;
}

address a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

address svg,
.footer-links svg {
  width: 18px;
  height: 18px;
}

.footer-links {
  display: grid;
  gap: 10px;
  font-weight: 800;
}

.footer-links a::before {
  content: "›";
  margin-right: 10px;
}

.copyright {
  position: relative;
  z-index: 1;
  margin: 0;
  padding: 13px 20px 18px;
  color: #fff;
  font-size: 0.92rem;
  font-weight: 700;
  text-align: center;
}

.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 24px;
  z-index: 12;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  color: var(--blue);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: 0 8px 22px rgba(20, 82, 128, 0.2);
}

.page-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(46px, 7vw, 82px) 22px clamp(42px, 6vw, 70px);
  text-align: center;
  background:
    radial-gradient(circle at 20% 18%, rgba(255, 212, 36, 0.24), transparent 120px),
    radial-gradient(circle at 84% 12%, rgba(85, 191, 47, 0.16), transparent 150px),
    linear-gradient(135deg, #effaff 0%, #ffffff 58%, #e8f8ff 100%);
  border-bottom: 1px solid rgba(31, 146, 232, 0.13);
}

.page-hero h1 {
  margin: 8px 0 0;
  color: var(--blue);
  font-size: clamp(2.1rem, 4.2vw, 3.35rem);
  line-height: 1.25;
  letter-spacing: 0;
}

.page-hero p {
  max-width: 760px;
  margin: 14px auto 0;
  font-size: clamp(1rem, 1.3vw, 1.12rem);
  font-weight: 800;
}

.page-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  padding: 4px 14px;
  color: var(--deep-blue);
  font-weight: 900;
  background: #e9f8ff;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.page-kicker svg {
  width: 19px;
  height: 19px;
}

.content-section {
  width: min(100% - 42px, 1120px);
  margin: 0 auto;
  padding: 42px 0;
}

.lead-panel {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 18px;
  align-items: start;
  margin-bottom: 26px;
  padding: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.lead-panel svg {
  width: 58px;
  height: 58px;
  padding: 12px;
  color: var(--green);
  background: #f0ffe9;
  border-radius: 999px;
}

.lead-panel h2 {
  margin: 0;
  font-size: clamp(1.35rem, 2.5vw, 1.9rem);
  line-height: 1.35;
}

.lead-panel p {
  margin: 6px 0 0;
  font-weight: 700;
}

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

.event-item {
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 14px;
  align-items: start;
  min-height: 128px;
  padding: 18px;
  background: #fff;
  border: 2px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.event-month {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  color: #fff;
  font-size: 1.18rem;
  font-weight: 900;
  background: var(--blue);
  border-radius: 999px;
}

.event-item:nth-child(3n+1) .event-month {
  background: var(--green);
}

.event-item:nth-child(3n+2) .event-month {
  background: var(--orange);
}

.event-item h3 {
  margin: 0;
  color: var(--deep-blue);
  font-size: 1.12rem;
}

.event-item p {
  margin: 5px 0 0;
  font-weight: 700;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.detail-card {
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.detail-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.detail-card-body {
  padding: 20px;
}

.detail-card h2,
.detail-card h3 {
  margin: 0;
  color: var(--blue);
  font-size: 1.28rem;
}

.detail-card p {
  margin: 8px 0 0;
  font-weight: 700;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.tag {
  padding: 3px 10px;
  color: var(--deep-blue);
  font-size: 0.82rem;
  font-weight: 900;
  background: #edf9ff;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.sport-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.sport-detail-card {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 18px;
  align-items: start;
  padding: 22px;
  background: #fff;
  border: 2px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.sport-detail-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 78px;
  height: 78px;
  font-size: 2.55rem;
  background: #f5fbff;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.sport-detail-card h2 {
  margin: 0;
  color: var(--blue);
  font-size: 1.36rem;
}

.sport-schedule {
  display: grid;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.sport-schedule li {
  display: flex;
  gap: 8px;
  align-items: baseline;
  font-weight: 800;
}

.sport-schedule span {
  flex: 0 0 auto;
  min-width: 74px;
  color: var(--orange);
}

.note-panel {
  margin-top: 26px;
  padding: 22px 24px;
  background: linear-gradient(100deg, #f4ffdf 0%, #fff 54%, #eefaff 100%);
  border: 1px solid #dcefbf;
  border-radius: 8px;
  font-weight: 800;
}

.about-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.about-detail-card {
  padding: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.about-detail-card svg {
  width: 42px;
  height: 42px;
  margin-bottom: 10px;
  color: var(--green);
}

.about-detail-card:nth-child(2n) svg {
  color: var(--orange);
}

.about-detail-card h2,
.about-detail-card h3 {
  margin: 0;
  font-size: 1.25rem;
}

.about-detail-card p {
  margin: 8px 0 0;
  font-weight: 700;
}

.link-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.link-detail-card {
  display: grid;
  grid-template-columns: 58px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 20px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.link-detail-card > svg {
  width: 52px;
  height: 52px;
  padding: 10px;
  color: var(--blue);
  background: #eef8ff;
  border-radius: 999px;
}

.link-detail-card h2,
.link-detail-card h3 {
  margin: 0;
  font-size: 1.18rem;
}

.link-detail-card p {
  margin: 4px 0 0;
  color: var(--muted);
  font-weight: 700;
}

.link-detail-card .button-mini {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  min-height: 32px;
  padding: 4px 12px;
  color: var(--deep-blue);
  font-weight: 900;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 26px;
}

@media (max-width: 1050px) {
  .site-header {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .menu-button {
    display: inline-flex;
  }

  .site-nav {
    display: none;
    flex-basis: 100%;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    width: 100%;
    padding: 8px 0 12px;
  }

  .site-nav.open {
    display: grid;
  }

  .site-nav a {
    padding: 10px 12px;
    background: #f2fbff;
    border: 1px solid var(--line);
    border-radius: 8px;
  }

  .site-nav a::after {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .hero-image {
    min-height: 280px;
    border-radius: 8px;
  }

  .season-grid,
  .sports-grid,
  .link-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .activity-grid,
  .about-grid,
  .news-list,
  .event-timeline,
  .detail-grid,
  .sport-detail-grid,
  .about-detail-grid,
  .link-detail-grid,
  .footer-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  body {
    line-height: 1.68;
  }

  .site-header {
    min-height: 68px;
    padding: 8px 14px;
  }

  .brand {
    gap: 9px;
    max-width: calc(100% - 56px);
    font-size: 1.02rem;
    white-space: normal;
  }

  .brand img {
    width: 48px;
    height: 45px;
  }

  .site-nav {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 34px 18px 62px;
  }

  .hero h1 {
    font-size: 2.05rem;
    line-height: 1.36;
  }

  .hero::after {
    display: none;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .hero-image {
    min-height: 220px;
  }

  .section,
  .blue-band,
  .news {
    width: min(100% - 28px, 1120px);
  }

  .section {
    padding: 30px 0;
  }

  .blue-band,
  .about,
  .news {
    padding-right: 14px;
    padding-left: 14px;
  }

  .season-grid,
  .sports-grid,
  .link-grid {
    grid-template-columns: 1fr;
  }

  .season-card {
    min-height: 210px;
  }

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

  .about-grid svg {
    grid-row: auto;
    margin: 0 auto 10px;
  }

  .about-grid p {
    grid-column: auto;
  }

  .news-list a {
    grid-template-columns: auto auto 1fr;
  }

  .news-list a svg {
    display: none;
  }

  .footer-inner {
    gap: 18px;
  }

  .footer-brand {
    align-items: flex-start;
  }

  .footer-brand strong {
    font-size: 1.2rem;
  }

  .content-section {
    width: min(100% - 28px, 1120px);
    padding: 30px 0;
  }

  .lead-panel,
  .sport-detail-card,
  .link-detail-card {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .lead-panel svg,
  .sport-detail-icon,
  .link-detail-card > svg {
    margin: 0 auto;
  }

  .sport-schedule li {
    justify-content: center;
    flex-wrap: wrap;
  }

  .sport-schedule span {
    min-width: 0;
  }
}