:root {
  color-scheme: light;
  --navy: #1e2a44;
  --red: #a6323c;
  --paper: #ffffff;
  --mist: #f2f4f7;
  --muted: #566174;
  --line: #d9dee6;
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  color: var(--navy);
  background: var(--paper);
  line-height: 1.9;
}
html { scroll-behavior: smooth; }
body { margin: 0; }
#business, #company, #contact { scroll-margin-top: 24px; }
.home-page #about {
  background-color: #f5f0e6;
  background-image: linear-gradient(rgba(250, 248, 243, .18), rgba(250, 248, 243, .18)), url("../assets/paper-texture.jpg");
  background-size: auto, 768px 512px;
  background-repeat: repeat;
}
:where(h1, h2, h3, p, dl) { margin: 0; }
:where(h1, h2, h3) { line-height: 1.5; }
h2 { font-size: clamp(1.5rem, 1.05rem + 1.4vw, 2.35rem); }
h3 { font-size: 1.15rem; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
:where(a, button):focus-visible { outline: 3px solid var(--red); outline-offset: 5px; }
.container { width: min(1120px, calc(100% - 96px)); margin-inline: auto; }
.skip-link { position: fixed; top: 8px; left: 8px; padding: 12px 20px; z-index: 10; background: white; transform: translateY(-150%); }
.skip-link:focus { transform: none; }
.site-header { background: white; border-bottom: 1px solid var(--line); position: relative; z-index: 5; }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; min-height: 60px; }
.logo { display: block; width: 138px; flex-shrink: 0; }
.header-inner > .logo { width: 112px; }
.main-nav { display: flex; align-items: center; gap: 34px; font-size: .875rem; font-weight: 700; }
.main-nav a { padding-block: 14px; position: relative; }
.main-nav a[aria-current="page"]::after { content: ""; position: absolute; height: 3px; background: var(--red); bottom: 4px; inset-inline: 0; }
.main-nav a:hover, .footer-nav a:hover { color: var(--red); }
.nav-toggle { display: none; }
.hero { position: relative; overflow: hidden; background: #fbfaf7; }
.hero-visual { position: absolute; inset: 0; }
.hero-visual::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(251, 250, 247, .18) 0%, transparent 48%); }
.hero-visual img { width: 100%; max-width: none; height: 100%; object-fit: cover; object-position: center; transform: translate(clamp(-160px, calc(180px - 16.667vw), 0px), -30px) scale(1.37); }
.hero-grid { position: relative; z-index: 1; display: flex; align-items: center; min-height: 610px; padding-block: 44px; }
.hero-copy { max-width: 760px; }
.hero h1 { font-size: clamp(2rem, 1rem + 2vw, 2.8rem); line-height: 1.55; letter-spacing: .025em; }
.hero h1 span { display: block; white-space: nowrap; }
.hero-description { color: var(--muted); margin-block: 24px 32px; font-size: .96rem; font-weight: 600; }
.button { display: inline-flex; justify-content: center; align-items: center; min-height: 50px; padding: 7px 28px; box-sizing: border-box; background: var(--navy); color: white; border: 1px solid var(--navy); border-radius: 4px; font-size: .9rem; font-weight: 700; }
.button:hover { background: var(--red); border-color: var(--red); }
.section { padding-block: 100px; }
.about-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 80px; }
.about-heading-image { display: none; }
.about-grid h2 { line-height: 1.8; }
.about-title-indent { display: inline-block; margin-left: 1em; }
.about-grid p:not(.lead) { color: #000; max-width: 36em; }
.lead { font-size: 1.2rem; font-weight: 700; margin-bottom: 22px; line-height: 1.9; }
.about-grid .lead { width: fit-content; max-width: 100%; box-sizing: border-box; padding: 8px 12px; background: rgba(255, 255, 255, .26); box-shadow: 0 5px 16px rgba(30, 42, 68, .02); }
.text-link { display: inline-block; padding-block: 12px; margin-top: 25px; font-size: .9rem; font-weight: 700; border-bottom: 2px solid var(--red); }
.text-link:hover { color: var(--red); }
.section-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; margin-bottom: 48px; }
.section-heading p { color: var(--muted); font-size: .9rem; }
.section-kicker { color: var(--red); font-size: .72rem; font-weight: 700; letter-spacing: .22em; margin-bottom: 18px; }
.business-intro { position: relative; overflow: hidden; padding-block: 112px 70px; background: var(--mist); }
.business-intro::before { content: "Our Business"; position: absolute; top: 34px; left: max(16px, calc((100% - 1120px) / 2 - 36px)); color: rgba(255, 255, 255, .82); font-size: clamp(5rem, 11vw, 10.5rem); font-weight: 600; line-height: 1; letter-spacing: -.05em; white-space: nowrap; pointer-events: none; }
.business-intro .container { position: relative; z-index: 1; }
.business-intro .section-heading { display: block; margin-bottom: 0; }
.business-detail-section { padding-bottom: 28px; background: var(--mist); }
.business-welfare-section { padding-bottom: 72px; }
.business-detail-card { min-height: 176px; box-sizing: border-box; display: grid; grid-template-columns: minmax(0, 1fr); align-items: start; padding: 54px 60px; background: rgba(255, 255, 255, .94); border: 1px solid rgba(30, 42, 68, .1); border-top: 4px solid var(--business-color); box-shadow: 0 8px 18px rgba(30, 42, 68, .09), 0 24px 48px rgba(30, 42, 68, .13); }
.business-title-row { display: flex; align-items: flex-start; gap: 36px; }
.business-detail-copy { align-self: start; }
.business-index { position: relative; isolation: isolate; flex: 0 0 auto; display: grid; place-items: center; width: 64px; height: 64px; color: white; font-size: 1.15rem; font-weight: 700; line-height: 1; }
.business-index::before { content: ""; position: absolute; inset: 8px; z-index: -1; background: var(--business-color); transform: rotate(45deg); }
.business-detail-copy .business-category { color: var(--business-color); font-size: clamp(1.8rem, 1.35rem + 1.4vw, 2.7rem); font-weight: 700; line-height: 1.35; letter-spacing: .03em; margin: 0; }
.business-detail-copy h2 { font-size: clamp(2rem, 1.35rem + 1.7vw, 3rem); line-height: 1.15; letter-spacing: .015em; margin-bottom: 25px; }
.business-detail-copy h2 span { font-size: .62em; letter-spacing: .12em; }
.business-detail-copy > p:last-child { max-width: 40em; margin: 24px 0 0 100px; color: var(--muted); font-size: .95rem; }
.business-music { grid-template-columns: minmax(0, 1fr) 280px; align-items: center; }
.music-school-content { margin: 16px 0 0 100px; }
.music-school-content > h3 { position: relative; display: flex; align-items: baseline; flex-wrap: wrap; gap: 2px 8px; padding-left: 20px; font-size: clamp(1.35rem, 1.05rem + .75vw, 1.8rem); letter-spacing: .03em; }
.music-school-content > h3::before, .business-summary > h3::before { content: ""; position: absolute; top: .72em; left: 2px; width: 9px; height: 9px; background: var(--business-color); box-shadow: 3px 3px 0 rgba(30, 42, 68, .1); transform: translateY(-50%) rotate(45deg); }
.music-school-content > h3 span { color: #000; }
.music-school-content > h3 b { color: var(--muted); font-size: .8em; }
.music-school-content > h3 em { color: #000; font-style: normal; }
.music-school-content > p { margin-top: 14px; color: #141b28; font-size: 1rem; font-weight: 400; line-height: 1.65; }
.music-feature-list { display: grid; grid-template-columns: repeat(3, 128px); justify-content: start; gap: 20px; margin-top: 24px; }
.music-feature-list > div { display: grid; justify-items: center; align-content: start; text-align: center; }
.music-feature-icon { display: block; width: 62px; height: 62px; margin-bottom: 10px; border-radius: 50%; background: #0c2453; box-shadow: 0 8px 18px rgba(30, 42, 68, .16); }
.music-feature-icon img { width: 100%; height: 100%; }
.music-feature-list > div:first-child .music-feature-icon img { transform: translate(3px, 4px); }
.music-feature-list p { width: 100%; margin: 0; color: var(--navy); font-size: .9rem; font-weight: 800; line-height: 1.3; text-align: center; white-space: nowrap; }
.business-summary { margin: 16px 0 0 100px; }
.business-summary h3 { position: relative; padding-left: 20px; color: #000; font-size: clamp(1.2rem, 1rem + .65vw, 1.6rem); letter-spacing: .02em; }
.business-cosmos .business-summary h3 { display: flex; align-items: baseline; flex-wrap: wrap; gap: 2px 8px; }
.business-cosmos .business-summary h3 b { color: var(--muted); font-size: .8em; }
.business-summary p { margin-top: 14px; color: #141b28; font-size: 1rem; font-weight: 400; line-height: 1.65; }
.artist-pipeline { display: grid; grid-template-columns: repeat(3, minmax(82px, 102px) 14px) minmax(82px, 102px); justify-content: start; align-items: center; gap: 2px; margin-top: 24px; }
.welfare-pipeline { grid-template-columns: repeat(2, 128px 20px) 128px; gap: 0; }
.artist-pipeline-step { min-height: 118px; box-sizing: border-box; display: grid; place-items: center; align-content: center; padding: 12px 6px 10px; }
.artist-pipeline-step span { display: block; width: 62px; height: 62px; margin-bottom: 10px; border-radius: 50%; background: #0c2453; box-shadow: 0 8px 18px rgba(30, 42, 68, .16); }
.artist-pipeline-step img { width: 100%; height: 100%; }
.business-cosmos .artist-pipeline-step:nth-of-type(3) img { transform: translateY(5px) scale(.86); }
.artist-pipeline .artist-pipeline-step p { margin: 0; color: var(--navy); font-size: .9rem; font-weight: 800; line-height: 1.3; text-align: center; white-space: nowrap; }
.artist-pipeline > i { align-self: start; margin-top: 21px; color: #cbd7e7; font-family: Arial, sans-serif; font-size: 2.5rem; font-style: normal; font-weight: 700; line-height: 1; text-align: center; }
.business-card-image { position: relative; width: 100%; aspect-ratio: 1; overflow: hidden; box-shadow: 0 12px 28px rgba(14, 69, 127, .2); }
.business-card-image .business-card-photo { width: 100%; height: 100%; object-fit: cover; }
.business-music .business-card-photo { transform: translateY(-10%) scale(1.22); }
.business-image-logo { position: absolute; bottom: 10px; left: 50%; width: 52%; padding: 7px 9px; background: rgba(255, 255, 255, .94); box-shadow: 0 6px 18px rgba(0, 0, 0, .16); transform: translateX(-50%); }
.business-image-logo img { width: 100%; height: auto; }
.business-artist-image { overflow: visible; }
.business-image-label { position: absolute; bottom: 0; left: 0; width: 66%; box-sizing: border-box; padding: 2px 8px; color: white; background: #1478c9; font-size: .9rem; font-weight: 700; line-height: 1.45; letter-spacing: .06em; text-align: center; }
.business-welfare-label { width: 100%; color: var(--navy); background: #e3b33f; }
.business-artist-logo { position: absolute; right: -16px; bottom: -15px; width: 48%; filter: drop-shadow(0 7px 12px rgba(0, 0, 0, .24)); transform: rotate(12deg); transform-origin: center; }
.business-artist-logo img { width: 100%; height: auto; }
.business-logo-heading { width: min(470px, 100%); margin-bottom: 28px; }
.business-logo-heading img { width: 100%; }
.business-motif { width: 190px; height: 190px; justify-self: end; position: relative; }
.business-motif i { position: absolute; display: block; }
.motif-cosmos i { width: 106px; height: 106px; border: 2px solid var(--navy); border-radius: 50%; background: rgba(255,255,255,.2); }
.motif-cosmos i:nth-child(1) { top: 10px; left: 42px; }
.motif-cosmos i:nth-child(2) { bottom: 8px; left: 4px; border-color: var(--red); }
.motif-cosmos i:nth-child(3) { right: 3px; bottom: 8px; border-color: #d4a52e; }
.motif-welfare i { width: 92px; height: 92px; transform: rotate(45deg); background: var(--navy); }
.motif-welfare i:nth-child(1) { left: 8px; top: 48px; background: var(--red); }
.motif-welfare i:nth-child(2) { right: 8px; top: 48px; background: #e3b33f; }
.motif-welfare i:nth-child(3) { left: 49px; top: 7px; background: rgba(30, 42, 68, .88); }
.business-music { --business-color: var(--red); }
.business-cosmos { --business-color: #0e457f; grid-template-columns: minmax(0, 1fr) 280px; align-items: center; }
.business-welfare { --business-color: #d0a024; grid-template-columns: minmax(0, 1fr) 280px; align-items: center; }
.announcement { display: grid; grid-template-columns: 1fr 2fr; gap: 60px; }
.announcement h3 { margin-block: 12px; }
.announcement p:not(.status) { color: var(--muted); font-size: .9rem; }
.home-page .news-section { padding-top: 88px; }
.home-page .announcement { padding: 48px 52px; box-sizing: border-box; background: rgba(255, 255, 255, .58); border: 1px solid rgba(30, 42, 68, .1); }
.home-company-section { background: white; }
.home-company-layout { display: grid; grid-template-columns: 1fr 2fr; gap: 60px; align-items: start; }
.home-company-list { border-top: 1px solid var(--line); }
.home-company-list > div { display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: 24px; padding: 20px 4px; border-bottom: 1px solid var(--line); }
.home-company-list dt { color: var(--red); font-size: .875rem; font-weight: 700; }
.home-company-list dd { margin: 0; color: #000; font-size: 1.05rem; }
.home-company-map { width: min(420px, 100%); box-sizing: border-box; margin-top: 14px; border: 1px solid var(--line); box-shadow: 0 10px 24px rgba(30, 42, 68, .08); }
.home-company-map iframe { display: block; width: 100%; height: 220px; border: 0; }
.status { display: inline-block; font-size: .75rem; color: var(--red); background: #faeff0; padding: 3px 12px; border-radius: 4px; }
.contact-band { padding-block: 58px; background: var(--red); color: white; }
.contact-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.contact-inner h2 { font-size: 1.65rem; margin-bottom: 10px; }
.contact-inner p { font-size: .875rem; }
.button-light { background: white; color: var(--navy); border-color: white; flex-shrink: 0; }
.button-light:hover { background: transparent; border-color: white; color: white; }
.contact-band a:focus-visible { outline-color: white; }
.home-page .home-contact { padding: 58px 0; background: var(--navy); }
.home-page .home-contact .contact-inner { box-sizing: border-box; display: grid; grid-template-columns: minmax(0, 360px) auto; justify-content: center; gap: 70px; padding: 0; background: transparent; box-shadow: none; }
.contact-button-slot { display: flex; align-items: center; justify-content: flex-start; width: auto; margin-left: 0; }
.home-contact .contact-label { display: flex; align-items: center; gap: 11px; margin-bottom: 14px; font-family: Arial, sans-serif; font-size: clamp(1.9rem, 1.5rem + 1.2vw, 2.6rem); line-height: 1; letter-spacing: .025em; }
.home-contact .contact-label > span { display: grid; place-items: center; width: 29px; height: 29px; flex: 0 0 auto; border-radius: 50%; background: white; }
.home-contact .contact-label svg { width: 18px; height: 18px; fill: none; stroke: var(--navy); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.home-contact .contact-inner p { font-size: .95rem; }
.mobile-break { display: none; }
.home-page .site-footer { border-top: 1px solid rgba(30, 42, 68, .12); }
.site-footer { padding-top: 65px; }
.footer-main { display: flex; align-items: flex-start; justify-content: space-between; gap: 40px; padding-bottom: 50px; }
.footer-logo { width: 155px; margin-bottom: 20px; }
.company-name { font-size: .875rem; font-weight: 700; }
.footer-address { color: var(--muted); font-size: .8rem; margin-top: 10px; }
.footer-nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px 28px; max-width: 550px; font-size: .8rem; }
.footer-nav a { padding-block: 10px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid var(--line); padding-block: 24px; font-size: .75rem; color: var(--muted); }
.page-intro { background: var(--mist); padding-block: 30px 62px; }
.breadcrumbs { display: flex; gap: 14px; font-size: .75rem; color: var(--muted); margin-bottom: 40px; }
.breadcrumbs a { text-decoration: underline; text-underline-offset: 4px; }
.page-intro h1 { font-size: clamp(1.85rem, 1rem + 2.5vw, 3rem); overflow-wrap: anywhere; }
.intro-description { color: var(--muted); margin-top: 18px; max-width: 42em; }
:is(.contact-page, .privacy-page) .page-intro { padding-block: 34px 0; background: transparent; }
.contact-page .page-intro { background: #f7f8fa; }
.privacy-page main { background: #f7f8fa; }
.contact-page .page-intro h1 { text-align: center; }
.contact-page .intro-description { margin-inline: auto; text-align: center; }
:is(.contact-page, .privacy-page) .breadcrumbs { margin-bottom: 18px; }
:is(.contact-page, .privacy-page) .page-intro h1 { font-size: clamp(1.7rem, 1.2rem + 1.5vw, 2.35rem); }
:is(.contact-page, .privacy-page) .intro-description { margin-top: 10px; }
:is(.contact-page, .privacy-page) .page-intro + .section { padding-top: 42px; }
.service-row { display: grid; grid-template-columns: 1fr 1.7fr; gap: 70px; padding-bottom: 64px; }
.service-row + .service-row { padding-top: 64px; border-top: 1px solid var(--line); }
.service-row h2 { font-size: 1.65rem; }
.service-row p:not(.lead) { color: var(--muted); }
.detail-list { padding-inline-start: 1.2em; margin-block: 25px 0; font-size: .9rem; }
.detail-list li { padding-block: 5px; }
.detail-list li::marker { color: var(--red); }
.notice { background: var(--mist); border-left: 4px solid var(--red); padding: 32px 38px; }
.notice h2 { font-size: 1.2rem; margin-bottom: 12px; }
.notice p { color: var(--muted); font-size: .95rem; }
.company-layout { display: grid; grid-template-columns: 1fr 2fr; gap: 90px; }
.company-sign { padding-top: 40px; }
.company-sign img { width: 260px; }
.company-list > div { display: grid; grid-template-columns: 110px minmax(0,1fr); gap: 22px; padding-block: 25px; border-bottom: 1px solid var(--line); }
.company-list > div:first-child { border-top: 1px solid var(--line); }
.company-list dt { font-size: .875rem; font-weight: 700; }
.company-list dd { margin: 0; overflow-wrap: anywhere; font-size: .95rem; }
.mission-section { background: var(--mist); }
.contact-content { max-width: 880px; }
.contact-topics-heading { font-size: 1.55rem; margin-block: 65px 18px; }
.contact-topics-heading + p { color: var(--muted); }
.topic-list section { padding-block: 28px; border-bottom: 1px solid var(--line); }
.topic-list h3 { margin-bottom: 10px; }
.topic-list p { color: var(--muted); }
.contact-form-section { background: #f7f8fa; }
.contact-form-wrap { max-width: 880px; }
.contact-form-guide { margin-bottom: 18px; color: var(--muted); font-size: .85rem; text-align: right; }
.contact-form { padding: 8px 52px 52px; background: white; border: 1px solid var(--line); box-shadow: 0 18px 42px rgba(30, 42, 68, .08); }
.form-field { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 28px; align-items: start; padding-block: 28px; border-bottom: 1px solid var(--line); }
.form-field > label { padding-top: 9px; font-size: .92rem; font-weight: 700; }
.required-mark { display: inline-block; margin-left: 6px; padding: 1px 7px; color: white; background: var(--red); border-radius: 2px; font-size: .68rem; font-weight: 700; line-height: 1.6; vertical-align: middle; }
.form-field :where(input, select, textarea) { width: 100%; box-sizing: border-box; padding: 11px 13px; color: var(--navy); background: white; border: 1px solid #cbd2dc; border-radius: 3px; font: inherit; line-height: 1.6; }
.form-field textarea { min-height: 190px; resize: vertical; }
.form-field :where(input, select, textarea):focus { outline: 2px solid rgba(166, 50, 60, .24); border-color: var(--red); }
.privacy-consent { display: flex; justify-content: center; align-items: center; gap: 10px; margin-block: 34px 26px; font-size: .9rem; }
.privacy-consent input { width: 18px; height: 18px; margin: 0; accent-color: var(--navy); }
.privacy-consent a { border-bottom: 1px solid var(--navy); font-weight: 700; }
.form-submit { text-align: center; }
.form-submit .button { min-width: 250px; cursor: pointer; }
.policy { width: 100%; max-width: none; }
.policy section { margin-bottom: 38px; }
.policy h2 { font-size: 1.3rem; margin-bottom: 15px; }
.policy p { color: var(--muted); }
.policy .text-link { margin: 0; padding: 0; }
.policy-note { text-align: right; font-size: .85rem; padding-top: 20px; border-top: 1px solid var(--line); }
@media (min-width: 769px) {
  .privacy-page .page-intro h1 { width: min(930px, 100%); margin-inline: auto; text-align: center; }
  .privacy-page .policy { width: min(930px, 100%); margin-inline: auto; }
}
@media (max-width: 1000px) {
  .container { width: calc(100% - 64px); }
  .hero-grid { min-height: 510px; }
  .hero-copy { max-width: 500px; }
  .about-grid, .company-layout { gap: 40px; }
  .business-detail-card { grid-template-columns: minmax(0, 1fr); padding: 44px 40px; }
  .business-music { grid-template-columns: minmax(0, 1fr) 230px; }
  .business-cosmos { grid-template-columns: minmax(0, 1fr) 230px; }
  .business-welfare { grid-template-columns: minmax(0, 1fr) 230px; }
  .music-feature-list { grid-template-columns: repeat(3, 112px); gap: 8px; }
  .welfare-pipeline { grid-template-columns: repeat(2, 112px 8px) 112px; }
  .business-motif { width: 160px; height: 160px; transform-origin: center; }
  .main-nav { gap: 24px; }
}
@media (min-width: 769px) and (max-width: 1100px) {
  .hero-visual img { transform: translate(-55px, -20px) scale(1.22); }
  .business-music, .business-cosmos, .business-welfare { grid-template-columns: minmax(0, 1fr) 200px; column-gap: 28px; }
  .business-detail-copy { min-width: 0; }
  .music-school-content, .business-summary { margin-left: 74px; }
  .music-feature-list { grid-template-columns: repeat(3, 96px); gap: 6px; }
  .artist-pipeline { grid-template-columns: repeat(3, 72px 10px) 72px; gap: 0; }
  .welfare-pipeline { grid-template-columns: repeat(2, 96px 12px) 96px; }
  .music-feature-list p, .artist-pipeline .artist-pipeline-step p { font-size: .76rem; }
}
@media (max-width: 768px) {
  html, body { max-width: 100%; overflow-x: hidden; }
  .container { width: calc(100% - 32px); }
  .site-header { z-index: 20; }
  .header-inner { min-height: 60px; gap: 16px; flex-wrap: nowrap; }
  .header-inner > .logo { width: 96px; }
  .nav-toggle { position: relative; z-index: 1; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px; margin-left: auto; background: white; border: 1px solid var(--line); border-radius: 4px; min-width: 40px; min-height: 40px; padding: 0; }
  .nav-toggle span { width: 20px; height: 2px; background: var(--navy); }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .main-nav { position: absolute; top: 100%; left: 0; right: 0; display: flex; width: auto; box-sizing: border-box; flex-direction: column; align-items: stretch; gap: 0; padding: 8px 16px 12px; background: rgba(255, 255, 255, .98); border-bottom: 1px solid var(--line); box-shadow: 0 14px 28px rgba(30, 42, 68, .12); visibility: hidden; opacity: 0; pointer-events: none; transform: translateY(-8px); transition: opacity .2s ease, transform .2s ease, visibility .2s ease; }
  .main-nav.is-open { visibility: visible; opacity: 1; pointer-events: auto; transform: translateY(0); }
  .main-nav a { padding: 10px 8px; }
  .main-nav a[aria-current="page"]::after { right: auto; width: 24px; bottom: 5px; left: 8px; }
  .hero { display: block; min-height: clamp(470px, 132vw, 560px); background: #fdfcf9; }
  .hero-grid { width: calc(100% - 32px); min-height: clamp(470px, 132vw, 560px); padding: 0; }
  .hero-copy { position: relative; width: 100%; max-width: none; min-height: inherit; }
  .hero-copy::after { content: none; }
  .hero-visual { position: absolute; inset: 0; width: 100%; background: #fdfcf9; }
  .hero-visual::after { display: none; }
  .hero-visual img { position: absolute; top: 22px; left: -89%; width: 225%; max-width: none; height: auto; object-fit: initial; transform: none; }
  .hero h1 { position: absolute; top: 62px; left: 0; z-index: 2; padding: 4px 7px 5px 0; background: transparent; font-size: clamp(1.18rem, 5.2vw, 1.52rem); }
  .hero-description { position: absolute; right: 0; bottom: 86px; z-index: 2; width: clamp(300px, 82vw, 330px); max-width: none; box-sizing: border-box; margin: 0; padding: 12px 14px 8px; background: transparent; font-size: clamp(.78rem, 3.2vw, .86rem); line-height: 1.7; text-align: right; }
  .hero-copy > .button { position: absolute; right: 14px; bottom: 34px; z-index: 2; width: 190px; min-width: 0; min-height: 38px; padding: 4px 9px; white-space: nowrap; font-size: .7rem; }
  .section { padding-block: 56px; }
  .about-grid, .announcement, .company-layout, .service-row { grid-template-columns: 1fr; gap: 28px; }
  .about-grid { grid-template-columns: minmax(0, 1fr); gap: 18px; text-align: center; }
  .about-grid > h2 { display: none; }
  .about-heading-image { display: block; justify-self: center; width: calc(100% + 48px); max-width: none; margin: 0; }
  .about-grid > div { text-align: left; }
  .about-grid .lead { width: fit-content; max-width: 100%; box-sizing: border-box; margin: 0 auto 10px; padding: 8px 12px; background: rgba(255, 255, 255, .26); box-shadow: 0 5px 16px rgba(30, 42, 68, .02); font-weight: 400; text-align: center; }
  .about-title-indent { margin-left: 1em; }
  .about-grid p:not(.lead) { margin-inline: auto; }
  .about-grid .text-link { display: block; width: max-content; margin-top: 10px; margin-left: auto; }
  .home-company-layout { grid-template-columns: 1fr; gap: 30px; }
  .home-company-layout > h2 { text-align: center; }
  .home-company-list > div { grid-template-columns: 1fr; gap: 4px; padding-block: 16px; }
  .home-company-map iframe { height: 200px; }
  .lead { font-size: .95rem; }
  .section-heading { display: block; margin-bottom: 32px; }
  .section-heading p { margin-top: 18px; }
  .business-intro { padding-block: 46px 18px; }
  .business-intro::before { top: 20px; left: 50%; font-size: clamp(3.2rem, 16vw, 5.2rem); transform: translateX(-50%); }
  .business-intro .section-heading { text-align: center; }
  .business-intro .section-heading h2 { font-size: 1.5rem; line-height: 1.5; }
  .business-detail-section { padding-bottom: 18px; }
  .business-welfare-section { padding-bottom: 44px; }
  .business-detail-card { min-height: 0; grid-template-columns: 1fr; gap: 24px; padding: 28px 18px; }
  .business-music { grid-template-columns: 1fr; }
  .business-cosmos { grid-template-columns: 1fr; }
  .business-welfare { grid-template-columns: 1fr; }
  .business-title-row { align-items: center; justify-content: center; gap: 14px; transform: translateX(-7px); }
  .business-index { width: 46px; height: 46px; font-size: .88rem; }
  .business-detail-copy .business-category { font-size: clamp(1.4rem, 6vw, 1.7rem); }
  .business-detail-copy > p:last-child { margin: 18px 0 0; }
  .music-school-content { margin: 16px 0 0; }
  .music-school-content > h3 { justify-content: center; flex-wrap: nowrap; gap: 0 6px; padding-left: 0; font-size: clamp(1.02rem, 4.4vw, 1.18rem); white-space: nowrap; }
  .music-school-content > h3::before { content: none; }
  .music-school-content > p { font-size: .82rem; line-height: 1.65; }
  .music-feature-list { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2px; margin-top: 20px; }
  .music-feature-list > div { display: grid; justify-items: center; align-content: start; gap: 0; }
  .music-feature-icon { width: 48px; height: 48px; }
  .music-feature-list p { width: 100%; font-size: .68rem; text-align: center; white-space: normal; }
  .business-summary { margin: 16px 0 0; }
  .business-summary h3 { padding-left: 0; font-size: clamp(1.02rem, 4.4vw, 1.18rem); letter-spacing: .03em; text-align: center; white-space: nowrap; }
  .business-summary h3::before { content: none; }
  .business-cosmos .business-summary h3 { justify-content: center; flex-wrap: wrap; gap: 0 6px; white-space: normal; }
  .business-cosmos .business-summary h3 b:last-of-type { display: none; }
  .business-cosmos .business-summary h3 span:last-child::before { content: "×"; margin-right: 6px; color: var(--muted); font-size: .8em; }
  .business-summary p { font-size: .82rem; line-height: 1.65; }
  .artist-pipeline { grid-template-columns: 1fr; justify-items: stretch; gap: 4px; }
  .welfare-pipeline { grid-template-columns: 1fr; }
  .artist-pipeline-step { min-height: 62px; grid-template-columns: 44px 1fr; justify-items: start; gap: 10px; padding: 4px 10px; }
  .artist-pipeline-step span { width: 44px; height: 44px; margin: 0; }
  .artist-pipeline .artist-pipeline-step p { font-size: .82rem; }
  .artist-pipeline > i { align-self: center; margin-block: -3px; font-size: 1.45rem; transform: rotate(90deg); }
  .business-cosmos .artist-pipeline { grid-template-columns: minmax(0, 1fr) 28px minmax(0, 1fr); grid-template-rows: auto 30px auto; align-items: center; gap: 4px 2px; margin-top: 22px; }
  .business-cosmos .artist-pipeline-step { min-height: 98px; display: grid; grid-template-columns: 1fr; place-items: center; align-content: center; gap: 7px; padding: 4px; }
  .business-cosmos .artist-pipeline-step span { width: 58px; height: 58px; }
  .business-cosmos .artist-pipeline .artist-pipeline-step p { width: 100%; font-size: .82rem; text-align: center; }
  .business-cosmos .artist-pipeline-step:nth-of-type(1) { grid-column: 1; grid-row: 1; }
  .business-cosmos .artist-pipeline-step:nth-of-type(2) { grid-column: 3; grid-row: 1; }
  .business-cosmos .artist-pipeline-step:nth-of-type(3) { grid-column: 3; grid-row: 3; }
  .business-cosmos .artist-pipeline-step:nth-of-type(4) { grid-column: 1; grid-row: 3; }
  .business-cosmos .artist-pipeline > i { align-self: center; margin: 0; font-size: 2.5rem; }
  .business-cosmos .artist-pipeline > i:nth-of-type(1) { grid-column: 2; grid-row: 1; transform: none; }
  .business-cosmos .artist-pipeline > i:nth-of-type(2) { grid-column: 3; grid-row: 2; transform: rotate(90deg); }
  .business-cosmos .artist-pipeline > i:nth-of-type(3) { grid-column: 2; grid-row: 3; transform: rotate(180deg); }
  .business-welfare .welfare-pipeline { grid-template-columns: minmax(0, 1fr) 18px minmax(0, 1fr) 18px minmax(0, 1fr); align-items: center; gap: 2px; margin-top: 20px; }
  .business-welfare .artist-pipeline-step { min-height: 84px; display: grid; grid-template-columns: 1fr; place-items: center; align-content: start; gap: 6px; padding: 0; }
  .business-welfare .artist-pipeline-step span { width: 48px; height: 48px; }
  .business-welfare .artist-pipeline .artist-pipeline-step p { width: 100%; font-size: .68rem; text-align: center; white-space: nowrap; }
  .business-welfare .artist-pipeline > i { align-self: start; margin: 7px 0 0; font-size: 2.3rem; transform: none; }
  .music-school-content > p br { display: none; }
  .business-card-image { width: min(100%, 300px); justify-self: center; margin-top: 4px; }
  .business-detail-copy h2 { font-size: clamp(1.75rem, 1.2rem + 3vw, 2.4rem); }
  .business-motif { grid-column: 1; justify-self: start; width: 140px; height: 140px; margin: 8px 0 0 74px; transform: scale(.72); transform-origin: left top; }
  .home-page .announcement { padding: 30px 26px; }
  .home-page .home-contact { padding-block: 44px; }
  .home-page .home-contact .contact-inner { grid-template-columns: 1fr; justify-items: center; gap: 28px; padding: 0; text-align: center; }
  .home-contact .contact-label { justify-content: center; }
  .mobile-break { display: inline; }
  .contact-button-slot { justify-content: center; width: 100%; margin-left: 0; }
  .contact-inner, .footer-main { flex-direction: column; align-items: flex-start; gap: 28px; }
  .contact-inner h2 { font-size: 1.3rem; }
  .contact-band { padding-block: 44px; }
  .footer-main { gap: 14px; }
  .footer-address { margin-top: 3px; }
  .footer-nav { justify-content: flex-start; gap: 0 24px; }
  .footer-nav a { padding-block: 5px; }
  .footer-nav a:last-child { flex-basis: 100%; margin-top: -7px; padding-top: 0; }
  .footer-bottom { flex-wrap: wrap; gap: 6px; }
  .site-footer { padding-top: 45px; }
  .footer-main { padding-bottom: 30px; }
  .page-intro { padding-block: 25px 40px; }
  .breadcrumbs { margin-bottom: 30px; }
  :is(.contact-page, .privacy-page) .page-intro { padding-block: 24px 0; }
  :is(.contact-page, .privacy-page) .breadcrumbs { margin-bottom: 14px; }
  :is(.contact-page, .privacy-page) .page-intro + .section { padding-top: 32px; }
  .intro-description { font-size: .9rem; }
  .service-row { padding-bottom: 40px; }
  .service-row + .service-row { padding-top: 40px; }
  .service-row h2 br { display: none; }
  .notice { padding: 25px 22px; }
  .contact-form-section { padding-block: 44px 56px; }
  .contact-form-guide { margin-bottom: 12px; text-align: right; }
  .contact-form { padding: 4px 18px 32px; }
  .form-field { grid-template-columns: 1fr; gap: 7px; padding-block: 20px; }
  .form-field > label { padding-top: 0; }
  .privacy-consent { align-items: flex-start; margin-block: 26px 22px; }
  .form-submit .button { width: 100%; min-width: 0; }
  .company-sign { padding: 0 0 10px; }
  .company-sign img { width: 180px; }
  .company-list > div { grid-template-columns: 1fr; gap: 8px; padding-block: 20px; }
  .policy h2 { font-size: 1.15rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}