:root {
  --ink: #09213e;
  --blue: #123f78;
  --cyan: #5de2df;
  --accent: #139ca6;
  --muted: #596b83;
  --line: #d7e0e9;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 104px; }
body { margin: 0; color: var(--ink); background: #fff; font: 16px/1.75 -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
img { display: block; width: 100%; height: auto; }
figure, h1, h2, h3, p { margin: 0; }
h1, h2, h3 { font-weight: 800; line-height: 1.15; letter-spacing: -.035em; }
h2 { font-size: clamp(48px, 7.1vw, 94px); }
h3 { font-size: 26px; }
em { font-style: normal; color: var(--accent); }
p + p { margin-top: 18px; }
.shell { width: min(1248px, 90%); margin-inline: auto; }
.eyebrow { position: relative; width: fit-content; font-size: 19px; line-height: 1.4; font-weight: 750; letter-spacing: .01em; margin-bottom: 24px; padding-bottom: 12px; }
.eyebrow::after { content: ''; position: absolute; bottom: 0; left: 0; width: 42px; border-bottom: 2px solid currentColor; }
.tiny-label { display: block; color: var(--muted); font-size: 15px; letter-spacing: .015em; line-height: 1.6; }
.lead { font-size: 23px; line-height: 1.65; }
.skip { position: absolute; top: -100px; padding: 10px 20px; }
.skip:focus { top: 10px; z-index: 99; background: #fff; color: var(--ink); }
.header { position: sticky; top: 0; z-index: 20; height: 84px; display: flex; align-items: center; justify-content: space-between; gap: 28px; padding-inline: max(5%, calc((100vw - 1248px) / 2)); background: #fff; border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 12px; font-size: 22px; font-weight: 800; line-height: 1.35; flex-shrink: 0; }
.brand img { width: 50px; height: 50px; object-fit: contain; }
.brand small { display: block; margin-top: 3px; font-size: 10px; letter-spacing: .12em; }
.header > nav { display: flex; gap: clamp(22px, 2.5vw, 36px); font-size: 14px; font-weight: 650; }
.header > nav a, .nav-contact { padding: 12px 0; }
.header nav a[aria-current='page'] { box-shadow: inset 0 -2px var(--accent); }
.nav-contact { font-size: 14px; font-weight: 650; border-bottom: 1px solid var(--blue); white-space: nowrap; }
.menu-button { display: none; }
.header .mobile-menu[hidden] { display: none; }
.fallback-nav { padding: 16px 5%; }
/* Restore the accepted rev10 hero composition with its original action photo. */
.hero { position: relative; height: calc(100svh - 84px); min-height: 660px; max-height: 840px; overflow: hidden; background: var(--blue); color: #fff; }
.hero-photo { position: absolute; inset: 0 0 0 35%; }
.hero-photo img { height: 100%; aspect-ratio: auto; object-fit: cover; object-position: 55% center; }
.hero::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, #123f78 5%, #123f78ed 28%, #123f7860 52%, transparent 80%); }
.hero-content { position: relative; z-index: 1; padding: 92px 0 70px 7%; width: 65%; animation: enter .65s both; }
.hero .location { font-size: 18px; font-weight: 400; color: #fff; margin-bottom: 25px; }
.hero h1 { font-size: clamp(46px, 5.8vw, 84px); font-weight: 750; line-height: 1.16; letter-spacing: -.045em; }
.hero h1 span, .hero h1 em { display: block; }
.hero h1 em { color: var(--cyan); }
.hero-line { margin: 28px 0 30px; font-size: 18px; line-height: 1.85; }
.hero .button { padding: 13px 28px; font-weight: 650; line-height: 1.85; }
.button { display: inline-flex; align-items: center; min-height: 50px; padding: 12px 26px; background: var(--cyan); color: var(--ink); font-size: 15px; font-weight: 700; transition: background .2s; }
.button:hover { background: #fff; color: var(--ink); }
.text-link { display: inline-block; min-height: 44px; padding: 10px 0 7px; border-bottom: 1px solid currentColor; font-size: 16px; line-height: 1.5; font-weight: 700; }
.sub-link { display: block; width: fit-content; margin-top: 18px; padding: 10px 0; font-size: 15px; color: var(--muted); min-height: 44px; }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 44px; margin-bottom: 44px; }
.section-intro { font-size: 18px; line-height: 1.9; color: var(--muted); }
.training { padding: 88px 0 84px; }
.course-tabs { display: flex; gap: 66px; border-bottom: 1px solid var(--line); margin-bottom: 34px; }
.course-tabs button { padding: 12px 0 16px; min-height: 64px; background: none; border: 0; box-shadow: inset 0 -2px transparent; font-size: 27px; font-weight: 750; color: var(--muted); line-height: 1.5; transition: color .2s, box-shadow .2s; }
.course-tabs button[aria-selected='true'] { color: var(--blue); box-shadow: inset 0 -3px var(--accent); }
.course-tabs button:hover { color: var(--ink); }
.course-feature { display: grid; grid-template-columns: 1.7fr 1fr; gap: 6%; align-items: center; }
.course-feature figure { min-width: 0; }
.course-media { position: relative; aspect-ratio: 4 / 3; overflow: hidden; }
.course-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 50%; }
.course-media img[data-sport='football'] { object-position: 42% 50%; }
.course-tabs button[data-pending] { color: var(--blue); }
.course-feature[aria-busy='true'] .course-media::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 3px; background: var(--cyan); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.course-feature figure > img, .course-detail figure > img { aspect-ratio: 4 / 3; object-fit: cover; object-position: 50% 50%; }
.course-feature img[data-sport='football'], .course-detail img[src$='football-v2.jpg'] { object-position: 42% 50%; }
.course-feature figcaption { margin-top: 14px; font-size: 12px; letter-spacing: .16em; color: var(--muted); }
.course-story h3 { font-size: 48px; margin: 14px 0 24px; }
.course-story p { max-width: 24em; font-size: 18px; color: var(--muted); line-height: 1.9; }
.course-story .text-link { margin-top: 24px; }
.fallback-courses { margin-top: 28px; }

/* Selected concept 3: one blue chapter, a horizontal progression and five flat columns. */
.method { background: var(--blue); color: #fff; padding: 44px 0 32px; }
.method .eyebrow { color: var(--cyan); margin-bottom: 26px; }
.method-top { display: grid; grid-template-columns: .35fr .65fr; align-items: center; gap: 32px; }
.method-title { font-size: clamp(56px, 7.8vw, 105px); line-height: 1.08; letter-spacing: -.045em; }
.method-summary { position: relative; top: 16px; }
.method-title em { color: var(--cyan); }
.teaching-heading { font-size: clamp(27px, 3.35vw, 42px); line-height: 1.3; letter-spacing: -.01em; }
.teaching-intro { margin-top: 6px; font-size: clamp(19px, 2.4vw, 27px); line-height: 1.6; }
.training-steps { display: flex; justify-content: space-between; align-items: center; list-style: none; margin: 20px 0 0; padding: 0; gap: 20px; }
.training-steps li { display: flex; align-items: center; gap: 14px; white-space: nowrap; }
.training-steps li:not(:last-child) { flex: 1; }
.training-steps li:not(:last-child)::after { content: ''; flex: 0 0 56px; margin-left: auto; margin-right: auto; transform: translateX(3px); border-top: 1px solid var(--cyan); }
.training-steps span { color: var(--cyan); font-size: 29px; line-height: 1.4; font-weight: 750; }
.training-steps strong { font-size: 18px; font-weight: 750; }
.method-principles { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 24px; margin-top: 56px; }
.method-principles article { position: relative; }
.method-principles article + article::before { content: ''; position: absolute; top: 0; bottom: 0; left: -12px; border-left: 1px solid #5de2df65; }
.method-principles h3 { font-size: clamp(20px, 2.15vw, 26px); line-height: 1.4; letter-spacing: 0; margin-bottom: 16px; }
.method-principles p { font-size: clamp(14px, 1.42vw, 17px); line-height: 1.75; color: #fff; }
.method-footer { display: flex; justify-content: flex-end; margin-top: 16px; }
.method .text-link { color: var(--cyan); font-size: 15px; }

/* An intact action takes priority over the generated mock's tighter panoramic crop. */
.events { padding: 38px 0 68px; }
.events .section-heading { margin-bottom: 18px; }
.events .eyebrow { margin-bottom: 12px; }
.events h2 { font-size: clamp(52px, 6.65vw, 90px); line-height: 1.04; }
.events .section-heading > .text-link { color: var(--blue); flex-shrink: 0; margin-bottom: 6px; }
.event-layout { display: grid; grid-template-columns: minmax(0, 2.35fr) minmax(230px, 1fr); gap: 26px 36px; align-items: start; }
.feature-story { grid-column: 1 / -1; }
.feature-story > a > img { aspect-ratio: 2 / 1; object-fit: cover; object-position: 50% 65%; }
.story-caption { padding-top: 10px; }
.story-caption h3 { font-size: 26px; line-height: 1.3; margin: 5px 0 5px; letter-spacing: -.015em; }
.story-caption p { color: var(--muted); font-size: 15px; line-height: 1.65; }
.support-story { grid-column: 1; }
.support-story > a { display: grid; grid-template-columns: 1.35fr 1fr; gap: 26px; align-items: center; }
.support-story img { aspect-ratio: 3 / 2; object-fit: contain; }
.support-story .story-caption { padding: 0; }
.support-story h3 { font-size: clamp(20px, 2.3vw, 29px); line-height: 1.35; }
.event-archive { grid-column: 2; display: grid; border-left: 1px solid var(--line); padding-left: 30px; }
.event-archive > a { display: block; padding: 0 0 18px; }
.event-archive > a + a { border-top: 1px solid var(--line); padding: 18px 0 0; }
.event-archive h3 { margin: 4px 0 5px; font-size: 25px; line-height: 1.3; }
.event-archive p { font-size: 15px; color: var(--muted); line-height: 1.7; }
.cooperation { padding: 64px 0 74px; background: #f3f6f9; }
.cooperation-heading h2 { font-size: clamp(42px, 5.7vw, 78px); line-height: 1.08; }
.cooperation-gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; margin-top: 40px; }
.cooperation-gallery article { display: grid; grid-template-rows: 64.4px auto; gap: 18px; min-width: 0; }
.cooperation-gallery h3 { display: flex; align-items: flex-end; margin: 0; font-size: 23px; line-height: 1.4; letter-spacing: 0; }
.cooperation-gallery figure { position: relative; aspect-ratio: 3 / 2; overflow: hidden; }
.cooperation-gallery img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 54%; }
.venue { padding: 78px 0 84px; }
.venue-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 7%; align-items: center; }
.venue h2 { font-size: clamp(44px, 5.5vw, 75px); margin-bottom: 26px; }
.venue .text-link { margin-top: 20px; }
.venue .photo-frame img { aspect-ratio: 4 / 3; object-fit: cover; object-position: 50% 50%; }
.venue figcaption { color: var(--muted); font-size: 13px; margin-top: 12px; }
.contact { background: #fff; color: var(--blue); padding: 46px 0 28px; border-top: 1px solid var(--line); }
.contact-heading { display: flex; justify-content: space-between; align-items: start; gap: 32px; padding-bottom: 28px; margin-bottom: 30px; border-bottom: 1px solid var(--line); }
.contact-heading h2 { max-width: 660px; font-size: clamp(26px, 2.45vw, 34px); line-height: 1.35; letter-spacing: -.025em; }
.contact-heading h2 em { display: inline-block; white-space: nowrap; color: #147b88; }
.contact-heading p { max-width: 280px; font-size: 14px; line-height: 1.8; color: var(--muted); }
.contact-groups { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr); gap: 40px; align-items: start; }
.contact-consult h3 { font-size: 30px; line-height: 1.3; letter-spacing: 0; margin-bottom: 22px; }
.consult-methods { display: grid; grid-template-columns: minmax(0, 1fr) 224px; gap: 26px; align-items: start; }
.contact-label { color: var(--muted); font-size: 14px; line-height: 1.6; }
.phone { display: block; width: fit-content; margin: 6px 0 22px; color: var(--blue); font-size: clamp(28px, 2.8vw, 40px); font-weight: 750; letter-spacing: .015em; line-height: 1.4; white-space: nowrap; }
.address-label { margin-bottom: 6px; }
address { max-width: 27em; font-style: normal; font-size: 15px; line-height: 1.8; }
.contact-wechat { width: 224px; max-width: 100%; }
.contact-wechat figcaption { font-size: 16px; line-height: 1.5; font-weight: 700; margin-bottom: 12px; padding-top: 10px; border-top: 2px solid #147b88; }
.qr-preview { display: grid; place-items: center; min-width: 0; width: 100%; aspect-ratio: 1; padding: 12px; border: 1px solid var(--line); background: #fff; }
.qr-preview img { width: 100%; height: auto; object-fit: contain; aspect-ratio: auto; }
.contact-follow { padding-left: 30px; border-left: 1px solid var(--line); }
.contact-follow h3 { font-size: 22px; line-height: 1.4; letter-spacing: 0; margin: 5px 0 24px; }
.follow-channels { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; max-width: 324px; align-items: start; }
.follow-channels figcaption { font-size: 15px; line-height: 1.5; font-weight: 600; margin-bottom: 12px; padding-top: 10px; border-top: 2px solid var(--line); color: var(--blue); }
.qr-note { font-size: 12px; color: var(--muted); margin-top: 20px; }
.service-strip { display: flex; justify-content: space-between; gap: 20px; font-size: 13px; padding-top: 24px; margin-top: 38px; border-top: 1px solid var(--line); }
.footer { display: flex; justify-content: space-between; gap: 20px; font-size: 13px; padding-block: 22px; }

/* The same chapter language continues on the existing course and event pages. */
.page-intro { padding: 58px 0 34px; background: var(--blue); color: #fff; }
.page-intro .eyebrow { color: var(--cyan); }
.page-intro h1 { font-size: clamp(48px, 6.6vw, 92px); line-height: 1.12; margin-bottom: 24px; }
.page-intro h1 em { color: var(--cyan); }
.page-intro .lead { max-width: 36em; font-size: 22px; line-height: 1.7; }
.section-nav { display: flex; gap: 34px; flex-wrap: wrap; margin-top: 34px; padding-top: 18px; border-top: 1px solid #5de2df65; }
.section-nav a { padding: 10px 0 7px; min-height: 44px; border-bottom: 1px solid var(--cyan); font-size: 16px; font-weight: 700; }
.course-detail { display: grid; grid-template-columns: 1.3fr 1fr; gap: 6%; padding: 68px 0; border-bottom: 1px solid var(--line); align-items: start; }
.course-detail h2 { font-size: 58px; }
.course-detail .eyebrow { font-size: 16px; margin-bottom: 18px; }
.course-detail ol { list-style: none; padding: 0; counter-reset: course; margin: 24px 0 0; }
.course-detail li { counter-increment: course; position: relative; padding: 14px 0 14px 46px; border-bottom: 1px solid var(--line); }
.course-detail li::before { content: '0' counter(course); position: absolute; top: 15px; left: 0; color: var(--accent); font-size: 22px; line-height: 1.4; font-weight: 750; }
.course-detail li strong { font-size: 18px; font-weight: 750; }
.course-detail li p { color: var(--muted); font-size: 16px; margin-top: 3px; }
.course-detail .text-link { margin-top: 22px; }
.archive-feature { padding: 46px 0; border-bottom: 1px solid var(--line); }
.archive-feature > img { aspect-ratio: 2 / 1; object-fit: cover; object-position: 50% 65%; }
.archive-feature > div { margin-top: 24px; max-width: 880px; }
.archive-feature .eyebrow { font-size: 16px; line-height: 1.7; margin-bottom: 18px; }
.archive-feature h2 { font-size: clamp(30px, 3.8vw, 48px); line-height: 1.3; margin-bottom: 18px; }
.archive-feature .lead { font-size: 22px; margin-bottom: 14px; }
.archive-feature > div > p:last-child { color: var(--muted); font-size: 17px; line-height: 1.85; }
.archive-feature#badminton { display: grid; grid-template-columns: 1.35fr 1fr; align-items: center; gap: 6%; padding-block: 64px; }
.archive-feature#badminton > img { aspect-ratio: 3 / 2; object-fit: contain; }
.archive-feature#badminton > div { margin-top: 0; }
.archive-feature#badminton h2 { font-size: clamp(28px, 3vw, 40px); }
.archive-history { display: grid; grid-template-columns: 1fr 1fr; gap: 8%; padding: 64px 0 76px; }
.archive-history > article + article { border-left: 1px solid var(--line); padding-left: 12%; }
.archive-history .eyebrow { font-size: 16px; }
.archive-history h2 { font-size: 42px; }
.archive-history ol { margin: 24px 0; padding-left: 22px; line-height: 2; }
.archive-history li { margin-bottom: 12px; }
.archive-history p { color: var(--muted); font-size: 16px; }
a:hover { color: var(--blue); }
.method a:hover, .contact a:hover, .page-intro a:hover { color: #fff; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
.method a:focus-visible, .contact a:focus-visible, .page-intro a:focus-visible { outline-color: var(--cyan); }
[data-motion-photo].in-view img { animation: enter .55s ease-out both; }
@keyframes enter { from { opacity: .7; transform: translateY(12px); } to { opacity: 1; transform: none; } }

@media (min-width: 761px) and (max-width: 1100px) {
  .header { gap: 18px; }
  .header > nav { gap: 20px; }
  .brand { font-size: 20px; gap: 9px; }
  .brand img { width: 44px; height: 44px; }
  .training-steps { gap: 13px; }
  .training-steps li { gap: 10px; }
  .training-steps strong { font-size: 18px; }
  .training-steps li:not(:last-child)::after { margin-left: auto; margin-right: auto; transform: translateX(1.5px); flex-basis: 56px; }
  .support-story > a { gap: 20px; }
  .event-archive { padding-left: 24px; }
  .event-archive h3 { font-size: 23px; }
}
@media (min-width: 761px) and (max-width: 950px) {
  .method-top { grid-template-columns: 1fr; gap: 26px; }
  .method-summary { top: 0; max-width: 660px; }
  .method-principles { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 30px 32px; margin-top: 36px; }
  .method-principles article + article::before { left: -16px; }
  .method-principles article:nth-child(4)::before { display: none; }
  .method-principles p { font-size: 16px; }
  .method-principles h3 { font-size: 21px; }
}
@media (max-width: 950px) {
  .contact-groups { grid-template-columns: 1fr; gap: 28px; }
  .contact-follow { border-left: 0; padding-left: 0; border-top: 1px solid var(--line); padding-top: 26px; }
  .consult-methods { max-width: 760px; }
}
@media (max-width: 760px) {
  html { scroll-padding-top: 88px; }
  .shell { width: calc(100% - 48px); }
  h2 { font-size: 44px; }
  .eyebrow { font-size: 16px; padding-bottom: 10px; margin-bottom: 22px; }
  .header { height: 72px; padding-inline: 24px; gap: 16px; }
  .brand { font-size: 18px; gap: 8px; }
  .brand img { width: 42px; height: 42px; }
  .brand small { font-size: 9px; }
  .header > nav:not(.mobile-menu), .nav-contact { display: none; }
  .menu-button { display: block; background: #fff; border: 1px solid var(--line); min-width: 54px; min-height: 44px; color: var(--ink); font-size: 14px; }
  .header .mobile-menu { position: absolute; top: 72px; left: 0; right: 0; display: flex; flex-direction: column; gap: 2px; padding: 18px 24px; background: #fff; border-bottom: 1px solid var(--line); box-shadow: 0 12px 18px #09213e12; }
  .header .mobile-menu a { min-height: 48px; padding-block: 10px; width: fit-content; }
  .hero { height: 720px; min-height: 0; }
  .hero-photo { inset: 250px 0 0; }
  .hero::after { background: linear-gradient(180deg, #123f78 0%, #123f78 29%, #123f7822 62%, transparent); }
  .hero-content { padding: 42px 24px; width: 100%; }
  .hero .location { font-size: 15px; margin-bottom: 18px; }
  .hero h1 { font-size: 48px; }
  .hero-line { font-size: 15px; margin: 20px 0; line-height: 1.65; }
  .hero .button { min-height: 48px; padding: 12px 22px; }
  .button { min-height: 48px; padding: 12px 22px; }
  .section-heading { gap: 24px; margin-bottom: 32px; }
  .section-heading h2 { font-size: 44px; line-height: 1.1; }
  .training { padding: 56px 0 58px; }
  .training .section-heading { display: block; }
  .section-intro { font-size: 16px; margin-top: 22px; line-height: 1.85; }
  .course-tabs { justify-content: space-between; gap: 12px; margin-bottom: 26px; }
  .course-tabs button { font-size: 21px; min-height: 54px; padding: 10px 0 15px; }
  .course-feature { grid-template-columns: 1fr; gap: 26px; }
  .course-story h3 { font-size: 36px; margin: 10px 0 18px; }
  .course-story p { font-size: 17px; line-height: 1.85; }
  .course-story .text-link { margin-top: 20px; }
  .sub-link { display: inline-block; margin: 18px 0 0 26px; }
  .method { padding: 34px 0 36px; }
  .method-top { display: block; }
  .method-title { font-size: clamp(47px, 12.4vw, 74px); line-height: 1.09; }
  .method-summary { margin-top: 30px; top: 0; }
  .teaching-heading { font-size: 27px; }
  .teaching-intro { font-size: 18px; line-height: 1.7; margin-top: 8px; }
  .training-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 22px; }
  .training-steps li { display: block; }
  .training-steps li:not(:last-child)::after { display: none; }
  .training-steps span { display: block; font-size: 27px; }
  .training-steps strong { display: block; font-size: 15px; margin-top: 4px; }
  .method-principles { grid-template-columns: 1fr; gap: 0; margin-top: 28px; }
  .method-principles article { padding: 22px 0; border-top: 1px solid #5de2df65; }
  .method-principles article + article::before { display: none; }
  .method-principles h3 { font-size: 20px; line-height: 1.5; margin-bottom: 10px; }
  .method-principles h3 br { display: none; }
  .method-principles p { font-size: 16px; line-height: 1.85; }
  .method-footer { margin-top: 0; justify-content: flex-start; }
  .events { padding: 36px 0 54px; }
  .events .section-heading { margin-bottom: 24px; gap: 12px; }
  .events .eyebrow { margin-bottom: 22px; }
  .events .section-heading h2 { font-size: 43px; line-height: 1.08; }
  .events .section-heading > .text-link { font-size: 14px; margin-bottom: 3px; white-space: nowrap; }
  .event-layout { grid-template-columns: 1fr; gap: 32px; }
  .feature-story, .support-story, .event-archive { grid-column: 1; }
  .feature-story > a > img { aspect-ratio: 4 / 3; object-position: 50% 50%; }
  .tiny-label { font-size: 13px; line-height: 1.7; letter-spacing: 0; }
  .story-caption { padding-top: 14px; }
  .story-caption h3 { font-size: 25px; line-height: 1.35; margin: 6px 0; }
  .story-caption p { font-size: 14px; }
  .support-story > a { grid-template-columns: 1fr; gap: 14px; }
  .support-story h3 { font-size: 25px; line-height: 1.35; }
  .event-archive { border-left: 0; border-top: 1px solid var(--line); padding: 22px 0 0; }
  .event-archive h3 { font-size: 24px; }
  .event-archive p { font-size: 14px; }
  .cooperation { padding: 44px 0 52px; }
  .cooperation-heading h2 { font-size: 40px; line-height: 1.15; }
  .cooperation-gallery { grid-template-columns: 1fr; gap: 32px; margin-top: 30px; }
  .cooperation-gallery article { grid-template-rows: auto auto; gap: 14px; }
  .cooperation-gallery h3 { display: block; font-size: 21px; line-height: 1.5; }
  .venue { padding: 54px 0; }
  .venue-layout { grid-template-columns: 1fr; gap: 30px; }
  .venue h2 { font-size: 44px; margin-bottom: 20px; }
  .venue figcaption { font-size: 12px; }
  .contact { padding: 34px 0 26px; }
  .contact-heading { display: block; margin-bottom: 26px; padding-bottom: 24px; }
  .contact-heading h2 { font-size: 26px; line-height: 1.4; }
  .contact-heading p { margin-top: 12px; font-size: 13px; }
  .contact-consult h3 { font-size: 27px; margin-bottom: 20px; }
  .consult-methods { grid-template-columns: 1fr; gap: 22px; }
  .phone { font-size: 32px; margin: 6px 0 20px; }
  address { font-size: 14px; }
  .contact-follow h3 { margin: 0 0 20px; font-size: 21px; }
  .follow-channels { gap: 20px; }
  .qr-note { margin-top: 18px; }
  .service-strip { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; font-size: 12px; margin-top: 30px; padding-top: 22px; }
  .footer { font-size: 12px; padding-block: 20px; }
  .page-intro { padding: 40px 0 28px; }
  .page-intro h1 { font-size: clamp(37px, 10vw, 62px); line-height: 1.2; margin-bottom: 22px; }
  .page-intro .lead { font-size: 18px; line-height: 1.75; }
  .page-intro .lead br { display: none; }
  .section-nav { gap: 10px 26px; margin-top: 26px; padding-top: 14px; }
  .section-nav a { font-size: 15px; }
  .course-detail { grid-template-columns: 1fr; gap: 28px; padding: 42px 0; }
  .course-detail h2 { font-size: 39px; }
  .course-detail .eyebrow { font-size: 15px; margin-bottom: 16px; }
  .course-detail ol { margin-top: 20px; }
  .course-detail li { padding-left: 40px; }
  .course-detail li strong { font-size: 17px; }
  .course-detail li p { font-size: 16px; }
  .archive-feature { padding: 36px 0; }
  .archive-feature > img { aspect-ratio: 4 / 3; object-position: 50% 50%; }
  .archive-feature > div { margin-top: 22px; }
  .archive-feature .eyebrow { font-size: 13px; margin-bottom: 16px; }
  .archive-feature h2 { font-size: 29px; line-height: 1.35; }
  .archive-feature .lead { font-size: 18px; }
  .archive-feature > div > p:last-child { font-size: 16px; }
  .archive-feature#badminton { grid-template-columns: 1fr; gap: 24px; padding-block: 40px; }
  .archive-feature#badminton h2 { font-size: 29px; }
  .archive-history { grid-template-columns: 1fr; gap: 36px; padding: 42px 0 54px; }
  .archive-history > article + article { border-left: 0; border-top: 1px solid var(--line); padding: 34px 0 0; }
  .archive-history h2 { font-size: 34px; }
  .archive-history .eyebrow { font-size: 15px; margin-bottom: 18px; }
  .archive-history ol { font-size: 16px; line-height: 1.9; }
}
@media (max-width: 360px) {
  .shell { width: calc(100% - 36px); }
  .header { padding-inline: 18px; gap: 12px; }
  .hero-content { padding-inline: 18px; }
  .events .section-heading { display: block; }
  .events .section-heading > .text-link { margin-top: 12px; }
  .sub-link { margin-left: 16px; }
  #course-description { min-height: 7.4em; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}