:root {
  --yl-navy: #0b2540;
  --yl-ink: #16324f;
  --yl-muted: #5b738c;
  --yl-line: #d7e3ec;
  --yl-soft: #eef6f7;
  --yl-paper: #f7fbfb;
  --yl-teal: #128c8c;
  --yl-teal-dark: #0e6f6f;
  --yl-teal-soft: #d8efef;
  --yl-gold: #c4a35a;
  --yl-white: #fff;
  --yl-shadow: 0 12px 40px rgba(11, 37, 64, .08);
  --yl-radius: 16px;
  --yl-max: 1180px;
  --yl-header: 76px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--yl-ink);
  background: var(--yl-white);
  font-family: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, textarea, select { font: inherit; }
.wrap { width: min(var(--yl-max), calc(100% - 40px)); margin: 0 auto; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 16px; background: #fff; padding: 8px 12px; z-index: 80; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
:focus-visible { outline: 2px solid var(--yl-teal); outline-offset: 2px; }
.hp { position: absolute; left: -9999px; height: 0; overflow: hidden; }

.ph-frame {
  margin: 0;
  width: 100%;
  overflow: hidden;
  background: #c5d8e6;
  aspect-ratio: var(--ph-w, 16) / var(--ph-h, 9);
}
.ph-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.topbar {
  background: var(--yl-navy);
  color: #d7e8ef;
  font-size: 12px;
}
.topbar .wrap { display: flex; justify-content: space-between; align-items: center; min-height: 36px; gap: 12px; }
.topbar a { color: #fff; }
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--yl-line);
}
.site-header .wrap { display: flex; align-items: center; gap: 16px; height: var(--yl-header); }
.logo { display: block; flex: 0 0 auto; width: 180px; }
.logo .ph-frame {
  width: 180px; height: 52px; aspect-ratio: 180 / 60;
  border-radius: 6px; background: #c5d8e6;
}
.nav { display: flex; align-items: center; gap: 2px; margin-left: auto; position: relative; flex-wrap: nowrap; }
.nav > a, .nav details > summary {
  position: relative;
  display: inline-flex; align-items: center; height: 44px; padding: 0 14px;
  color: #1c3550; font-size: 14px; font-weight: 400; letter-spacing: .12em;
  cursor: pointer; list-style: none; white-space: nowrap; flex: 0 0 auto;
}
.nav details > summary::-webkit-details-marker { display: none; }
.nav > a::after, .nav details > summary::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 8px; height: 2px;
  background: var(--yl-teal); transform: scaleX(0); transform-origin: center;
  transition: transform .2s ease;
}
.nav > a:hover, .nav details[open] > summary, .nav > a.is-on, .nav details.is-on > summary {
  color: var(--yl-teal); font-weight: 500;
}
.nav > a:hover::after, .nav details[open] > summary::after, .nav > a.is-on::after, .nav details.is-on > summary::after { transform: scaleX(1); }
.header-search { display: flex; align-items: center; margin-left: 8px; flex: 0 0 auto; }
.header-search input {
  width: 148px; height: 36px; border: 1px solid var(--yl-line); border-radius: 999px 0 0 999px;
  padding: 0 12px; background: #fff;
}
.header-search button {
  height: 36px; border: 0; padding: 0 12px; border-radius: 0 999px 999px 0;
  background: var(--yl-navy); color: #fff; cursor: pointer;
}
.mega {
  position: absolute; left: 50%; transform: translateX(-50%);
  width: min(var(--yl-max), calc(100% - 40px));
  background: #fff; border: 1px solid var(--yl-line); border-radius: 16px;
  box-shadow: var(--yl-shadow); padding: 16px; margin-top: 8px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px;
}
.mega a { display: block; padding: 0; border-radius: 12px; overflow: hidden; background: var(--yl-paper); }
.mega a:hover { background: var(--yl-soft); }
.mega .ph-frame { aspect-ratio: 16 / 10; }
.mega strong, .mega span { display: block; padding: 0 12px; }
.mega strong { color: var(--yl-navy); margin-top: 10px; }
.mega span { color: var(--yl-muted); font-size: 12px; padding-bottom: 12px; }
.header-phone {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--yl-teal); color: #fff; border-radius: 999px;
  padding: 0 16px; height: 40px; font-weight: 600; white-space: nowrap; flex: 0 0 auto;
}
.header-phone:hover { background: var(--yl-teal-dark); }
.menu-toggle {
  display: none; width: 40px; height: 40px; border: 0; background: transparent; cursor: pointer;
}
.menu-toggle span, .menu-toggle span:before, .menu-toggle span:after {
  display: block; width: 18px; height: 2px; background: var(--yl-navy); position: relative;
}
.menu-toggle span:before, .menu-toggle span:after { content: ""; position: absolute; left: 0; }
.menu-toggle span:before { top: -6px; }
.menu-toggle span:after { top: 6px; }

.hero { position: relative; color: #fff; }
.hero-slide { position: relative; min-height: 620px; display: grid; }
.hero-slide[hidden] { display: none !important; }
.hero-slide .ph-frame { min-height: 620px; height: min(78vh, 820px); aspect-ratio: auto; }
.hero-slide::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(7,24,40,.68) 0%, rgba(7,24,40,.32) 52%, rgba(7,24,40,.12) 100%);
  pointer-events: none;
}
.hero-copy {
  position: absolute; inset: 0; z-index: 1;
  display: flex; flex-direction: column; justify-content: center;
  width: min(var(--yl-max), calc(100% - 40px)); margin: 0 auto;
  padding-inline: 56px;
}
.hero-copy .eyebrow { letter-spacing: .28em; font-size: 12px; color: var(--yl-gold); margin: 0 0 8px; }
.hero-copy p { max-width: 560px; color: rgba(255,255,255,.86); }
.hero-copy h1 { font-size: clamp(32px, 5vw, 52px); line-height: 1.2; margin: 0 0 12px; max-width: 720px; }
.hero-dots { position: absolute; left: 50%; bottom: 22px; transform: translateX(-50%); display: flex; gap: 8px; z-index: 2; }
.hero-dots button { width: 10px; height: 10px; border: 0; border-radius: 999px; background: rgba(255,255,255,.4); cursor: pointer; padding: 0; }
.hero-dots button.is-on { width: 28px; background: #fff; }
.hero-arrow {
  position: absolute; top: 50%; z-index: 2; width: 40px; height: 40px; border: 0;
  border-radius: 50%; background: rgba(7,24,40,.35); color: #fff; cursor: pointer;
}
.hero-arrow.prev { left: 20px; }
.hero-arrow.next { right: 20px; }
.hero-arrow:after { content: ""; display: block; width: 10px; height: 10px; border-top: 2px solid #fff; border-right: 2px solid #fff; margin: 0 auto; }
.hero-arrow.prev:after { transform: rotate(-135deg); }
.hero-arrow.next:after { transform: rotate(45deg); }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 44px; padding: 0 22px; border-radius: 999px; border: 0; cursor: pointer;
  background: var(--yl-teal); color: #fff; font-weight: 600;
}
.btn:hover { background: var(--yl-teal-dark); }
.btn-ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.45); }
.btn-line { background: #fff; color: var(--yl-teal); border: 1px solid var(--yl-teal); }

.section { padding: 72px 0; }
.section-muted { background: var(--yl-paper); }
.section-more { text-align: center; margin-top: 28px; }
.section-head { text-align: center; margin-bottom: 36px; }
.section-head h2 { margin: 0 0 8px; font-size: 32px; color: var(--yl-navy); }
.section-head p { margin: 0; color: var(--yl-muted); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.card {
  background: #fff; border: 1px solid var(--yl-line); border-radius: var(--yl-radius); overflow: hidden;
  transition: transform .2s, box-shadow .2s;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--yl-shadow); }
.card-body { padding: 18px 20px 22px; }
.card-body small { display: block; margin-bottom: 8px; color: var(--yl-teal); font-size: 12px; letter-spacing: .04em; }
.card-body h3 {
  margin: 0 0 8px; font-size: 18px; line-height: 1.4; color: var(--yl-navy);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.card-body p {
  margin: 0; color: var(--yl-muted); font-size: 14px; line-height: 1.7;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.more { display: inline-flex; margin-top: 14px; color: var(--yl-teal); font-weight: 600; }

.band { background: var(--yl-navy); color: #fff; padding: 64px 0; text-align: center; }
.band h2 { margin: 0 0 8px; font-size: 30px; }
.band p { margin: 0; color: #c5d6e2; }
.choose { display: grid; grid-template-columns: 248px 1fr; gap: 28px; align-items: stretch; }
.choose-nav { display: flex; flex-direction: column; gap: 2px; padding: 4px 0; }
.choose-nav button {
  display: grid; justify-items: start; gap: 2px;
  text-align: left; border: 0; border-left: 3px solid transparent; border-radius: 0 14px 14px 0;
  background: transparent; padding: 18px 20px; cursor: pointer; color: var(--yl-muted);
  font-size: 16px; font-weight: 400; line-height: 1.35; letter-spacing: .04em;
}
.choose-index { font-size: 11px; letter-spacing: .2em; color: var(--yl-gold); font-weight: 600; }
.choose-name { font-size: 16px; }
.choose-nav button:hover { color: var(--yl-navy); background: var(--yl-paper); }
.choose-nav button.is-on {
  background: var(--yl-soft); color: var(--yl-navy); border-left-color: var(--yl-teal); font-weight: 600;
}
.choose-nav button.is-on .choose-index { color: var(--yl-teal); }
.choose-nav button.is-on .choose-name { font-size: 17px; }
.choose-stage { min-height: 460px; }
.choose-panel { position: relative; overflow: hidden; border-radius: 16px; min-height: 460px; padding: 0; background: #0b2540; }
.choose-panel .ph-frame { margin: 0; min-height: 460px; height: 460px; aspect-ratio: auto; border-radius: 0; }
.choose-copy {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 1;
  padding: 72px 36px 32px;
  background: linear-gradient(180deg, transparent 0%, rgba(7,24,40,.55) 42%, rgba(7,24,40,.92) 100%);
  color: #fff;
}
.choose-copy h3 { margin: 0 0 10px; font-size: 24px; font-weight: 600; letter-spacing: .06em; color: #fff; }
.choose-copy p { margin: 0; color: rgba(255,255,255,.9); max-width: 680px; font-size: 15px; line-height: 1.8; }

.mosaic { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.mosaic .tile:first-child { grid-column: span 2; min-height: 280px; }
.tile { position: relative; overflow: hidden; border-radius: 16px; color: #fff; min-height: 220px; }
.tile .ph-frame { min-height: 220px; height: 100%; aspect-ratio: auto; }
.tile::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(7,24,40,.72));
  pointer-events: none;
}
.tile-copy { position: absolute; z-index: 1; left: 20px; bottom: 18px; right: 20px; }
.tile-copy strong { display: block; font-size: 22px; }
.tile-copy span { color: rgba(255,255,255,.82); font-size: 13px; }

.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.product-card .card-body small { color: var(--yl-teal); font-weight: 600; }

.page-hero { position: relative; background: var(--yl-navy); color: #fff; padding: 56px 0 48px; overflow: hidden; }
.page-hero h1 { margin: 0 0 8px; font-size: 36px; }
.page-hero p { margin: 0; color: #c5d6e2; }
.page-hero--photo { padding: 0; min-height: 280px; }
.page-hero--photo .ph-frame { min-height: 280px; aspect-ratio: auto; height: 280px; }
.page-hero--photo::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(7,24,40,.15), rgba(7,24,40,.72));
}
.page-hero-copy { position: relative; z-index: 1; }
.page-hero--photo .page-hero-copy {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 36px 0 32px;
}
.article-cover { border-radius: var(--yl-radius); margin-bottom: 8px; }
.detail-photo { border-radius: var(--yl-radius); overflow: hidden; }
.prose-wide { max-width: 860px; }
.crumbs { font-size: 13px; color: var(--yl-muted); margin-bottom: 18px; }
.crumbs a:hover { color: var(--yl-teal); }

.prose { max-width: 760px; }
.prose p { color: #345; }
.filter-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.filter-row a {
  height: 36px; padding: 0 14px; border-radius: 999px; border: 1px solid var(--yl-line);
  display: inline-flex; align-items: center;
}
.filter-row a.is-on { background: var(--yl-teal); color: #fff; border-color: var(--yl-teal); }

.detail { display: grid; grid-template-columns: 1.1fr .9fr; gap: 36px; align-items: start; }
.detail h1 { margin: 0 0 8px; font-size: 32px; color: var(--yl-navy); }
.kicker { letter-spacing: .18em; font-size: 12px; color: var(--yl-gold); margin: 0 0 8px; text-transform: uppercase; }
.slogan { color: var(--yl-teal); font-weight: 600; margin: 0 0 12px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 24px; }
.chips span { background: var(--yl-soft); color: var(--yl-navy); border-radius: 999px; padding: 6px 12px; font-size: 13px; }
.detail-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 12px; }
.gallery-main { position: relative; }
.gallery-main .ph-frame { display: none; border-radius: var(--yl-radius); overflow: hidden; }
.gallery-main .ph-frame.is-on { display: block; }
.gallery-thumbs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 10px; }
.gallery-thumbs button { border: 2px solid transparent; padding: 0; border-radius: 10px; overflow: hidden; background: none; cursor: pointer; }
.gallery-thumbs button.is-on { border-color: var(--yl-teal); }
.product-tabs { margin-top: 48px; }
.tab-nav { display: flex; gap: 4px; border-bottom: 1px solid var(--yl-line); margin-bottom: 24px; }
.tab-nav button {
  height: 44px; padding: 0 18px; border: 0; background: none; cursor: pointer;
  color: var(--yl-muted); font-weight: 600; border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.tab-nav button.is-on { color: var(--yl-navy); border-bottom-color: var(--yl-teal); }
.spec-table { width: 100%; border-collapse: collapse; }
.spec-table th, .spec-table td { padding: 14px 16px; border-bottom: 1px solid var(--yl-line); text-align: left; }
.spec-table th { width: 28%; color: var(--yl-muted); font-weight: 500; background: var(--yl-paper); }
.file-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.file-list li { display: grid; grid-template-columns: 72px 1fr; gap: 16px; align-items: center; background: #fff; border: 1px solid var(--yl-line); border-radius: 12px; padding: 12px; }
.file-list--grid { grid-template-columns: 1fr 1fr; }
.file-list strong { color: var(--yl-navy); }
.file-list p { margin: 4px 0 0; color: var(--yl-muted); font-size: 13px; }
.showcase { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.showcase-tile { position: relative; overflow: hidden; border-radius: 16px; color: #fff; min-height: 280px; }
.showcase-tile .ph-frame { min-height: 280px; height: 100%; aspect-ratio: auto; }
.showcase-tile:nth-child(1), .showcase-tile:nth-child(2) { min-height: 340px; }
.showcase-tile:nth-child(1) .ph-frame, .showcase-tile:nth-child(2) .ph-frame { min-height: 340px; }
.showcase-tile::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 28%, rgba(7,24,40,.78));
}
.showcase-copy { position: absolute; z-index: 1; left: 20px; right: 20px; bottom: 18px; }
.showcase-copy small { display: block; letter-spacing: .12em; font-size: 12px; color: var(--yl-gold); }
.showcase-copy strong { display: block; font-size: 22px; margin: 6px 0 4px; }
.showcase-copy span { color: rgba(255,255,255,.82); font-size: 13px; }
.story-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 20px; }
.story-lead { grid-row: span 1; }
.about-intro { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; }
.about-intro .ph-frame { border-radius: var(--yl-radius); }
.band-stats { text-align: center; }
.stat-block h3 { margin: 0 0 6px; font-size: 40px; color: var(--yl-gold); }
.stat-block p { margin: 0; color: #c5d6e2; }
.timeline { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.timeline li {
  position: relative; padding: 20px 8px 0; border-top: 2px solid var(--yl-teal);
}
.timeline li strong { display: block; color: var(--yl-teal); margin-bottom: 8px; }
.honor-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.honor-card { background: #fff; border-radius: 12px; overflow: hidden; text-align: center; }
.honor-card h3 { font-size: 15px; margin: 12px 12px 4px; color: var(--yl-navy); }
.honor-card p { margin: 0 12px 16px; color: var(--yl-muted); font-size: 13px; }
.faq details { border: 1px solid var(--yl-line); border-radius: 12px; padding: 0 18px; margin-bottom: 10px; background: #fff; }
.faq summary { cursor: pointer; font-weight: 600; color: var(--yl-navy); padding: 16px 0; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq details[open] summary { color: var(--yl-teal); }
.faq details p { margin: 0 0 16px; color: var(--yl-muted); }
.block-title { margin: 0 0 12px; color: var(--yl-navy); }
.footer-qr-col { justify-self: end; }
.footer-qr { display: flex; gap: 12px; }
.footer-qr figure { margin: 0; width: 96px; }
.footer-qr .ph-frame { width: 96px; height: 96px; aspect-ratio: 1; border-radius: 8px; }
.footer-qr figcaption { font-size: 12px; margin-top: 6px; color: #9bb0bf; text-align: center; }
.float-cta {
  position: fixed; right: 0; top: 46%; z-index: 45;
  display: flex; align-items: center; justify-content: center;
  width: 40px; min-height: 128px; padding: 16px 0;
  border: 0; border-radius: 10px 0 0 10px;
  background: var(--yl-teal); color: #fff;
  font-size: 14px; font-weight: 600; letter-spacing: .22em; line-height: 1.35;
  writing-mode: vertical-rl; text-orientation: mixed;
  box-shadow: -8px 10px 24px rgba(11, 37, 64, .18);
}
.float-cta:hover { background: var(--yl-teal-dark); color: #fff; }
.dock-i { display: block; width: 18px; height: 18px; margin-bottom: 2px; position: relative; }
.dock-home { border: 1.5px solid currentColor; border-radius: 3px; }
.dock-box { border: 1.5px solid currentColor; }
.dock-phone:before { content: ""; position: absolute; inset: 2px; border: 1.5px solid currentColor; border-radius: 40%; transform: rotate(-20deg); }
.dock-chat { border: 1.5px solid currentColor; border-radius: 6px 6px 6px 0; }

.form { display: grid; gap: 12px; }
.form label { display: grid; gap: 6px; font-size: 13px; color: var(--yl-muted); }
.form input, .form textarea, .form select {
  width: 100%; border: 1px solid var(--yl-line); border-radius: 10px; padding: 10px 12px; color: var(--yl-ink);
}
.form textarea { min-height: 120px; resize: vertical; }
.form .agree { display: flex; gap: 8px; align-items: flex-start; line-height: 1.5; }
.form .agree input { width: auto; margin-top: 4px; }
.notice-ok { background: #e9f8f1; color: #16875d; padding: 10px 14px; border-radius: 10px; }
.notice-error { background: #fdecec; color: #bd2f36; padding: 10px 14px; border-radius: 10px; }

.office { display: grid; gap: 8px; }
.office-card { border: 1px solid var(--yl-line); border-radius: 12px; padding: 16px 18px; margin-bottom: 12px; }
.map-slot { margin-top: 16px; overflow: hidden; border-radius: var(--yl-radius); }
.article-layout { max-width: 860px; }
.stat-card h3 { font-size: 32px; color: var(--yl-teal); margin: 0 0 6px; }
.related-title { margin-top: 48px; color: var(--yl-navy); }
.legal-prose h2 { font-size: 20px; margin-top: 28px; }
.search-page-form { display: flex; gap: 8px; margin-bottom: 28px; }
.search-page-form input { flex: 1; height: 44px; border: 1px solid var(--yl-line); border-radius: 999px; padding: 0 16px; }
.result-title { color: var(--yl-navy); margin: 28px 0 16px; }
.muted { color: var(--yl-muted); }
.disclaimer { color: var(--yl-muted); font-size: 12px; margin-top: 16px; }
.error-page { min-height: 48vh; }
.error-page .eyebrow { letter-spacing: .2em; color: var(--yl-teal); font-weight: 700; }
.pager { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 28px; }
.pager a, .pager span {
  min-width: 36px; height: 36px; padding: 0 10px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--yl-line); border-radius: 8px;
}
.pager .is-on { background: var(--yl-teal); color: #fff; border-color: var(--yl-teal); }
.pager .is-disabled { opacity: .45; }

.site-footer { background: #071828; color: #b7c7d4; padding: 48px 0 24px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr auto; gap: 28px; align-items: start; }
.site-footer h4 { color: #fff; margin: 0 0 12px; }
.footer-grid a { display: block; padding: 4px 0; }
.site-footer a:hover { color: #fff; }
.copyright { border-top: 1px solid rgba(255,255,255,.08); margin-top: 28px; padding-top: 16px; font-size: 12px; }
.copyright-row {
  display: flex; flex-wrap: nowrap; align-items: center; justify-content: space-between;
  gap: 16px; white-space: nowrap;
}
.copyright-row p { margin: 0; }
.legal-links { display: flex; gap: 16px; margin: 0; }
.legal-links a { display: inline; padding: 0; }

.h5-dock {
  display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
  background: #fff; border-top: 1px solid var(--yl-line);
  padding: 8px 8px calc(8px + env(safe-area-inset-bottom));
  grid-template-columns: repeat(4, 1fr);
}
.h5-dock a { display: flex; flex-direction: column; align-items: center; gap: 2px; font-size: 11px; color: var(--yl-muted); }
.h5-dock a.is-on, .h5-dock a.phone { color: var(--yl-teal); font-weight: 600; }

@media (max-width: 1280px) {
  .header-search { display: none; }
}
@media (min-width: 861px) {
  .nav > a.nav-contact { display: none; }
}
@media (max-width: 1400px) {
  .header-phone { display: none; }
}
@media (max-width: 960px) {
  .grid-3, .product-grid, .mosaic, .showcase, .honor-grid, .story-grid, .file-list--grid, .timeline { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1.1fr .9fr .9fr auto; gap: 20px; }
  .footer-grid > :nth-child(4) { grid-column: 1; }
  .footer-qr-col { grid-column: 4; grid-row: 1 / span 2; justify-self: end; }
  .mosaic .tile:first-child { grid-column: span 1; min-height: 220px; }
  .detail, .about-intro { grid-template-columns: 1fr; }
  .choose { grid-template-columns: 200px 1fr; gap: 20px; }
  .mega { grid-template-columns: 1fr 1fr; }
  .nav > a, .nav details > summary { padding: 0 10px; letter-spacing: .08em; }
  .nav > a::after, .nav details > summary::after { left: 10px; right: 10px; }
}
@media (max-width: 860px) {
  :root { --yl-header: 60px; }
  .topbar .wrap span:first-child { display: none; }
  .wrap { width: min(100% - 28px, var(--yl-max)); }
  .menu-toggle { display: grid; place-items: center; margin-left: auto; }
  .nav, .header-phone { display: none; }
  body.nav-open .nav {
    display: flex; flex-direction: column; align-items: stretch;
    position: absolute; left: 0; right: 0; top: var(--yl-header);
    background: #fff; border-bottom: 1px solid var(--yl-line); padding: 8px 16px 16px;
  }
  .mega { position: static; transform: none; width: auto; box-shadow: none; padding: 0 0 8px; }
  .hero-slide, .hero-slide .ph-frame { min-height: 460px; height: 460px; }
  .page-hero--photo .ph-frame { height: 220px; min-height: 220px; }
  .section { padding: 48px 0; }
  .grid-3, .product-grid, .mosaic, .footer-grid, .grid-2, .showcase, .honor-grid, .story-grid, .file-list--grid, .timeline, .choose { grid-template-columns: 1fr; }
  .footer-qr-col { grid-column: auto; grid-row: auto; justify-self: start; }
  .footer-grid > :nth-child(4) { grid-column: auto; }
  .choose-nav { flex-direction: row; overflow-x: auto; gap: 0; padding: 0 0 8px; }
  .choose-nav button { flex: 0 0 auto; border-left: 0; border-bottom: 3px solid transparent; border-radius: 0; padding: 12px 14px; }
  .choose-nav button.is-on { border-bottom-color: var(--yl-teal); background: transparent; }
  .choose-panel, .choose-panel .ph-frame, .choose-stage { min-height: 280px; height: auto; }
  .choose-panel .ph-frame { height: 280px; }
  .float-cta { display: none; }
  .mosaic .tile:first-child { grid-column: span 1; }
  .h5-dock { display: grid; }
  .site-footer { padding-bottom: 88px; }
  .page-hero { padding: 36px 0 28px; }
  .page-hero h1 { font-size: 28px; }
  .header-search { margin: 8px 0 0; }
  .header-search input { width: 100%; }
  .hero-arrow { display: none; }
  .search-page-form { flex-direction: column; }
  .logo, .logo .ph-frame { width: 160px; }
  .logo .ph-frame { height: 40px; aspect-ratio: 180 / 48; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .card { transition: none; }
}