:root {
  --brand: #00aeef;
  --brand-dark: #008fc9;
  --navy: #102a40;
  --ink: #14283a;
  --muted: #64798a;
  --pale: #f1faff;
  --line: #d9eaf3;
  --white: #ffffff;
  --green: #06c755;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.container { width: min(1160px, calc(100% - 56px)); margin-inline: auto; }
.mobile-only { display: none; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.site-header { height: 88px; border-bottom: 1px solid rgba(16, 42, 64, .08); background: rgba(255, 255, 255, .97); }
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 36px; }
.header-logo { width: 102px; height: 74px; object-fit: contain; }
.desktop-nav { display: flex; align-items: center; gap: 34px; margin-left: auto; color: #29465b; font-size: 13px; font-weight: 700; }
.header-cta { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 22px; border: 1px solid var(--brand); border-radius: 999px; color: var(--brand-dark); font-size: 13px; font-weight: 800; }

.hero { position: relative; overflow: hidden; background: linear-gradient(180deg, #fff 0%, #f5fbff 100%); }
.hero-inner { position: relative; z-index: 2; min-height: 675px; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 72px 0 64px; text-align: center; }
.hero-orb { position: absolute; border-radius: 50%; pointer-events: none; }
.hero-orb-one { width: 390px; height: 390px; top: -250px; right: -100px; background: rgba(0, 174, 239, .09); }
.hero-orb-two { width: 230px; height: 230px; left: -150px; bottom: -120px; background: rgba(0, 174, 239, .06); }
.eyebrow { margin: 0 0 16px; color: var(--brand-dark); font-size: 11px; font-weight: 900; letter-spacing: .18em; }
.eyebrow.light { color: #76d7f8; }
.hero h1 { margin: 0; font-size: clamp(48px, 4.6vw, 66px); line-height: 1.35; letter-spacing: .025em; }
.hero h1 span { display: block; }
.hero h1 .accent-line { color: var(--brand); }
.hero-copy { margin: 24px 0 0; color: var(--muted); font-size: 15px; line-height: 2; text-wrap: pretty; }
.hero-actions { display: flex; justify-content: center; gap: 14px; margin-top: 30px; }
.button { display: inline-flex; min-height: 52px; align-items: center; justify-content: center; gap: 24px; padding: 0 26px; border-radius: 999px; font-size: 14px; font-weight: 800; }
.button.primary { color: #fff; background: var(--brand); box-shadow: 0 12px 28px rgba(0, 174, 239, .22); }
.button.secondary { color: var(--brand-dark); background: #fff; border: 1px solid var(--brand); }
.hero-points { display: flex; gap: 10px; margin-top: 28px; }
.hero-points span { padding: 8px 14px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255, 255, 255, .8); color: #587082; font-size: 11px; font-weight: 700; }
.sound-wave { height: 66px; display: flex; align-items: center; justify-content: center; gap: 7px; margin-top: 38px; opacity: .72; }
.sound-wave i { width: 3px; height: 14px; border-radius: 999px; background: var(--brand); }
.sound-wave i:nth-child(3n) { height: 34px; }
.sound-wave i:nth-child(4n) { height: 52px; }
.sound-wave i:nth-child(5n) { height: 24px; }
.sound-wave i:nth-child(7n) { height: 62px; }

.concerns { padding: 54px 0; }
.concern-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.concern-card { display: grid; grid-template-columns: 40px 1fr; gap: 16px; padding: 24px; border: 1px solid var(--line); border-radius: 18px; }
.card-number { color: var(--brand); font-size: 12px; font-weight: 900; letter-spacing: .08em; }
.concern-card h3 { margin: 0 0 9px; font-size: 15px; line-height: 1.65; }
.concern-card p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.8; text-wrap: pretty; }

.section { padding: 100px 0; }
.section-title { margin: 0; font-size: 38px; line-height: 1.4; letter-spacing: .02em; text-wrap: balance; }
.section-title span { display: inline; }
.section-copy { margin: 14px 0 0; color: var(--muted); font-size: 15px; line-height: 1.9; }
.services { background: var(--pale); }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 44px; }
.service-card { overflow: hidden; border: 1px solid var(--line); border-radius: 24px; background: #fff; box-shadow: 0 16px 44px rgba(29, 72, 99, .06); }
.service-card > img { width: 100%; aspect-ratio: 5 / 3; object-fit: cover; }
.service-content { padding: 26px; }
.service-content h3 { margin: 0 0 12px; font-size: 23px; }
.service-content > p { min-height: 76px; margin: 0; color: var(--muted); font-size: 14px; line-height: 1.9; text-wrap: pretty; }
.service-price-guide { display: grid; gap: 5px; min-height: 116px; margin-top: 18px; padding: 15px 16px; border-radius: 14px; background: var(--pale); }
.service-price-guide strong { color: var(--brand-dark); font-size: 11px; }
.service-price-guide span { color: var(--ink); font-size: 13px; font-weight: 900; line-height: 1.6; }
.service-price-guide small { color: var(--muted); font-size: 10px; line-height: 1.7; }
.service-content a { display: inline-flex; gap: 18px; margin-top: 18px; color: var(--brand-dark); font-size: 13px; font-weight: 900; }

.lesson { color: #fff; background: var(--navy); }
.lesson-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 72px; align-items: center; }
.lesson-copy h2 { margin: 0; font-size: 40px; line-height: 1.5; text-wrap: balance; }
.lesson-copy h2 span { display: block; }
.lesson-copy > p:not(.eyebrow) { max-width: 580px; margin: 20px 0 0; color: #c7d7e1; font-size: 14px; line-height: 2; text-wrap: pretty; }
.lesson-copy ul { display: grid; gap: 12px; margin: 26px 0 30px; padding: 0; list-style: none; }
.lesson-copy li { font-size: 14px; }
.lesson-copy li::before { content: "✓"; display: inline-grid; place-items: center; width: 22px; height: 22px; margin-right: 10px; border-radius: 50%; color: #fff; background: var(--brand); font-size: 11px; }
.price-panel { padding: 36px; border-radius: 26px; color: var(--ink); background: #fff; box-shadow: 0 22px 60px rgba(0, 0, 0, .16); }
.price-kicker { margin: 0; color: var(--brand-dark); font-size: 10px; font-weight: 900; letter-spacing: .14em; }
.price-panel h3 { margin: 10px 0 24px; font-size: 26px; }
.price-list { display: grid; gap: 12px; }
.price-list > div { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 20px; border-radius: 16px; background: #f1f8fc; }
.price-list .current-plan { min-height: 104px; border: 2px solid var(--brand); background: #fff; }
.price-list .addon-plan { flex-wrap: wrap; border: 1px solid #cfe7f4; background: #f1f8fc; }
.price-list .addon-plan small { line-height: 1.6; }
.discount-copy { flex: 0 0 100%; margin: -4px 0 0; padding-top: 10px; border-top: 1px dashed #b9d9e9; color: var(--brand-dark); font-size: 11px; font-weight: 900; line-height: 1.6; text-align: center; }
.price-list span { font-size: 12px; font-weight: 900; letter-spacing: .05em; }
.price-list small { color: var(--muted); font-weight: 600; }
.price-list strong { white-space: nowrap; font-size: 26px; }
.price-list strong small { display: block; margin-bottom: 2px; color: var(--brand-dark); font-size: 10px; text-align: right; }
.price-note { margin: 15px 0 0; color: #8494a0; font-size: 10px; }

.flow-heading-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 36px; }
.flow-heading-row > div { min-width: 0; }
.flow-guide-button { display: grid; grid-template-columns: 1fr auto; min-width: 330px; padding: 15px 18px 14px 20px; border: 1px solid var(--line); border-radius: 16px; background: var(--pale); color: var(--brand-dark); transition: border-color .2s, transform .2s; }
.flow-guide-button:hover { border-color: var(--brand); transform: translateY(-2px); }
.flow-guide-button span { grid-column: 1 / -1; margin-bottom: 3px; color: var(--muted); font-size: 10px; font-weight: 700; }
.flow-guide-button strong { font-size: 14px; }
.flow-guide-button i { grid-column: 2; grid-row: 2; align-self: center; font-style: normal; }
.flow-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 44px; }
.flow-grid article { padding: 26px 20px 10px; border-top: 2px solid var(--line); }
.flow-grid article > span { display: grid; place-items: center; width: 34px; height: 34px; margin-bottom: 18px; border-radius: 50%; color: #fff; background: var(--brand); font-size: 12px; font-weight: 900; }
.flow-grid h3 { margin: 0 0 10px; font-size: 16px; }
.flow-grid p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.8; text-wrap: pretty; }

.videos { background: var(--pale); }
.video-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 36px; }
.video-card { position: relative; overflow: hidden; border-radius: 22px; background: var(--navy); }
.video-card img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; opacity: .9; }
.video-card span { position: absolute; right: 18px; bottom: 16px; left: 18px; padding: 13px 16px; border-radius: 12px; color: #fff; background: rgba(12, 36, 54, .86); font-size: 14px; font-weight: 800; }
.video-actions { display: flex; justify-content: center; margin-top: 30px; }
.youtube-button { width: auto; color: #fff; background: var(--navy); box-shadow: 0 12px 28px rgba(16, 42, 64, .16); }

.faq { background: #fff; }
.faq-layout { display: grid; grid-template-columns: .72fr 1.28fr; align-items: start; gap: 76px; }
.faq-heading { position: sticky; top: 40px; }
.faq-help { max-width: 390px; margin: 28px 0 22px; color: var(--muted); font-size: 12px; line-height: 1.9; }
.faq-heading .button { width: auto; min-height: 48px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; display: grid; grid-template-columns: 28px 1fr; gap: 12px; align-items: start; padding: 24px 48px 24px 0; color: var(--ink); cursor: pointer; font-size: 15px; font-weight: 900; line-height: 1.7; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; top: 22px; right: 4px; display: grid; width: 30px; height: 30px; place-items: center; border-radius: 50%; color: var(--brand); background: var(--pale); font-size: 18px; font-weight: 500; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list summary > span, .faq-answer > span { display: grid; width: 26px; height: 26px; place-items: center; border-radius: 50%; color: #fff; background: var(--brand); font-size: 11px; font-weight: 900; }
.faq-answer { display: grid; grid-template-columns: 28px 1fr; gap: 12px; align-items: start; padding: 0 48px 25px 0; }
.faq-answer > span { color: var(--brand-dark); background: var(--pale); }
.faq-answer p { margin: 1px 0 0; color: var(--muted); font-size: 13px; line-height: 1.95; text-wrap: pretty; }
.faq-answer a { color: var(--brand-dark); font-weight: 800; text-decoration: underline; text-underline-offset: 3px; }

.contact { padding: 88px 0 100px; background: var(--pale); }
.contact-heading { max-width: 760px; margin: 0 auto 34px; text-align: center; }
.contact-heading h2 { margin: 0; font-size: 34px; line-height: 1.45; }
.contact-heading p { margin: 14px 0 0; color: var(--muted); font-size: 14px; line-height: 1.9; }
.contact-choice-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.contact-choice { display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 20px; padding: 32px; border: 1px solid var(--line); border-radius: 24px; background: #fff; }
.contact-choice h3 { margin: 0; font-size: 22px; }
.contact-choice p { margin: 8px 0 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.contact-email-address { display: inline-block; margin-top: 5px; color: var(--brand-dark); font-size: 15px; font-weight: 900; text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; overflow-wrap: anywhere; }
.contact-choice .button { grid-column: 1 / -1; margin-top: 4px; }
.contact-choice-icon { position: relative; display: grid; flex: 0 0 auto; place-items: center; width: 66px; height: 66px; border-radius: 50%; background: var(--brand); }
.contact-choice-icon span { position: relative; width: 30px; height: 21px; border: 2px solid #fff; border-radius: 4px; }
.contact-choice-icon span::before, .contact-choice-icon span::after { content: ""; position: absolute; top: 3px; width: 17px; height: 2px; border-radius: 999px; background: #fff; }
.contact-choice-icon span::before { left: 0; transform: rotate(34deg); transform-origin: left center; }
.contact-choice-icon span::after { right: 0; transform: rotate(-34deg); transform-origin: right center; }
.line-choice { background: linear-gradient(135deg, #f0fcf4, #fff); }
.line-badge { display: grid; place-items: center; width: 66px; height: 66px; border-radius: 50%; color: #fff; background: var(--green); font-size: 13px; font-weight: 900; }
.line-button { color: #fff; background: var(--green); }

.form-result-page { display: grid; min-height: 100vh; place-items: center; padding: 24px; background: var(--pale); }
.result-wrap { width: min(680px, 100%); }
.result-card { padding: 56px; border: 1px solid var(--line); border-radius: 24px; background: #fff; text-align: center; box-shadow: 0 18px 50px rgba(29, 72, 99, .08); }
.result-card h1 { margin: 0; font-size: 32px; }
.result-card > p { color: var(--muted); line-height: 1.9; }
.result-actions { display: flex; justify-content: center; gap: 12px; margin-top: 28px; }
.result-support a { color: var(--brand-dark); }

.site-footer { padding: 48px 0; color: #fff; background: #0c2335; }
.footer-inner { display: grid; grid-template-columns: 1fr; justify-items: center; gap: 22px; text-align: center; }
.footer-inner nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px 24px; color: #b9cbd7; font-size: 11px; }
.footer-inner small { justify-self: center; color: #b9cbd7; font-size: 10px; }

/* Legal pages */
.legal-page { background: #f7fbfd; }
.legal-page .site-header { position: relative; z-index: 10; }
.legal-hero { padding: 92px 0 70px; background: linear-gradient(180deg, #fff 0%, var(--pale) 100%); }
.legal-container { width: min(860px, calc(100% - 56px)); }
.legal-hero h1 { margin: 0; font-size: clamp(38px, 5vw, 56px); line-height: 1.35; letter-spacing: .025em; }
.legal-hero > .legal-container > p:not(.eyebrow):not(.legal-updated) { margin: 18px 0 0; color: var(--muted); line-height: 1.9; }
.legal-updated { margin: 22px 0 0; color: #7990a0; font-size: 12px; }
.legal-content { margin-top: 52px; margin-bottom: 90px; padding: 58px 64px; border: 1px solid var(--line); border-radius: 26px; background: #fff; box-shadow: 0 18px 50px rgba(29, 72, 99, .06); }
.legal-content section + section { margin-top: 48px; padding-top: 46px; border-top: 1px solid var(--line); }
.legal-content h2 { margin: 0 0 18px; font-size: 22px; line-height: 1.55; }
.legal-content p, .legal-content li, .legal-content dd { color: #435d70; font-size: 14px; line-height: 2; text-wrap: pretty; }
.legal-content p { margin: 0; }
.legal-content p + p { margin-top: 14px; }
.legal-content ol, .legal-content ul { display: grid; gap: 10px; margin: 0; padding-left: 1.45em; }
.legal-content a { color: var(--brand-dark); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }
.commerce-list { margin: 0; }
.commerce-list > div { display: grid; grid-template-columns: 210px 1fr; gap: 30px; padding: 26px 0; border-bottom: 1px solid var(--line); }
.commerce-list > div:first-child { padding-top: 0; }
.commerce-list > div:last-child { padding-bottom: 0; border-bottom: 0; }
.commerce-list dt { color: var(--ink); font-size: 14px; font-weight: 900; line-height: 1.8; }
.commerce-list dd { margin: 0; }
.legal-note { color: #6d8291; font-size: 12px; }

/* Creator page */
.creator-page { background: #fff; }
.creator-hero { overflow: hidden; padding: 100px 0; background: linear-gradient(135deg, #fff 0%, var(--pale) 100%); }
.creator-hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; gap: 80px; }
.creator-intro h1 { margin: 0; font-size: clamp(42px, 5vw, 62px); line-height: 1.3; }
.creator-lead { margin: 28px 0 20px; color: var(--ink); font-size: clamp(25px, 3vw, 36px); font-weight: 900; line-height: 1.55; letter-spacing: .02em; }
.creator-intro > p:not(.creator-lead) { max-width: 640px; margin: 0; color: var(--muted); font-size: 15px; line-height: 2; }
.creator-mark { position: relative; display: grid; place-items: center; min-height: 390px; border: 1px solid var(--line); border-radius: 48% 52% 44% 56% / 52% 42% 58% 48%; background: #fff; box-shadow: 0 24px 70px rgba(0, 142, 201, .12); }
.creator-mark::before { content: ""; position: absolute; width: 78%; height: 78%; border-radius: 50%; background: rgba(0, 174, 239, .06); }
.creator-mark img { position: relative; z-index: 1; width: min(76%, 320px); }
.creator-profile-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 80px; align-items: start; }
.creator-profile h2, .creator-values h2 { margin: 0 0 28px; font-size: 36px; line-height: 1.4; }
.creator-profile p { margin: 0; color: var(--muted); font-size: 15px; line-height: 2.1; text-wrap: pretty; }
.creator-profile p + p { margin-top: 18px; }
.creator-facts { margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 22px; background: var(--pale); }
.creator-facts div { padding: 22px 26px; }
.creator-facts div + div { border-top: 1px solid var(--line); }
.creator-facts dt { margin-bottom: 7px; color: var(--brand-dark); font-size: 12px; font-weight: 900; }
.creator-facts dd { margin: 0; color: var(--ink); font-size: 14px; font-weight: 700; line-height: 1.7; }
.creator-values { background: var(--pale); }
.creator-value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.creator-value-grid article { padding: 34px; border: 1px solid var(--line); border-radius: 22px; background: #fff; }
.creator-value-grid h3 { margin: 0 0 14px; font-size: 21px; }
.creator-value-grid p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.9; text-wrap: pretty; }
.creator-message { padding: 90px 0; color: #fff; background: var(--navy); }
.creator-message-inner { display: grid; grid-template-columns: 1fr auto; gap: 60px; align-items: center; }
.creator-message h2 { margin: 0; font-size: 40px; line-height: 1.5; }
.creator-message p { max-width: 720px; margin: 22px 0 0; color: #c7d7e1; font-size: 14px; line-height: 2; }

/* Lesson preparation */
.preparation-page { background: #fff; }
.preparation-page .site-header { position: relative; z-index: 20; }
.preparation-hero { overflow: hidden; background: linear-gradient(135deg, #fff 5%, var(--pale) 100%); }
.preparation-hero-grid { min-height: 580px; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 74px; padding-block: 78px; }
.preparation-label { margin: 0 0 15px; color: var(--brand-dark); font-size: 12px; font-weight: 900; letter-spacing: .04em; }
.preparation-hero h1 { margin: 0; font-size: clamp(46px, 5vw, 64px); line-height: 1.3; letter-spacing: .02em; }
.preparation-lead { margin: 24px 0 0; color: var(--muted); font-size: 15px; line-height: 2; text-wrap: pretty; }
.preparation-hero-actions { display: flex; gap: 12px; margin-top: 30px; }
.connection-visual { position: relative; min-height: 370px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 38px; background: rgba(255, 255, 255, .78); box-shadow: 0 24px 70px rgba(29, 72, 99, .09); }
.connection-device { position: absolute; top: 72px; left: 48px; width: 245px; height: 158px; padding: 44px 18px 18px; border-radius: 16px; background: var(--navy); box-shadow: 0 18px 30px rgba(16, 42, 64, .18); }
.connection-device::before { content: ""; position: absolute; top: 26px; right: 16px; left: 16px; height: 1px; background: #365267; }
.device-dot { position: relative; z-index: 2; float: left; width: 6px; height: 6px; margin: -29px 5px 0 0; border-radius: 50%; background: #6f8797; }
.device-track { height: 12px; margin-bottom: 12px; border-radius: 3px; background: linear-gradient(90deg, #1fa7dd 0 26%, transparent 26% 31%, #5ac8ed 31% 73%, transparent 73% 78%, #188fbe 78%); }
.track-two { width: 76%; margin-left: 18%; opacity: .76; }
.track-three { width: 88%; opacity: .9; }
.device-play { position: absolute; right: 15px; bottom: 12px; display: grid; width: 26px; height: 26px; place-items: center; border-radius: 50%; color: #fff; background: var(--brand); font-size: 9px; }
.connection-line { position: absolute; top: 150px; right: 97px; display: flex; align-items: center; gap: 5px; height: 42px; }
.connection-line i { display: block; width: 3px; height: 12px; border-radius: 99px; background: var(--brand); }
.connection-line i:nth-child(2), .connection-line i:nth-child(4) { height: 26px; }
.connection-line i:nth-child(3) { height: 40px; }
.connection-person { position: absolute; top: 105px; right: 34px; width: 62px; height: 62px; border: 2px solid var(--brand); border-radius: 50%; background: #fff; }
.connection-person span { position: absolute; top: 12px; left: 21px; width: 17px; height: 17px; border-radius: 50%; background: var(--brand); }
.connection-person i { position: absolute; right: 12px; bottom: 10px; left: 12px; height: 19px; border-radius: 18px 18px 10px 10px; background: var(--brand); }
.connection-visual > p { position: absolute; right: 34px; bottom: 74px; left: 34px; margin: 0; color: var(--ink); font-size: 18px; font-weight: 900; line-height: 1.55; text-align: center; }
.preparation-nav { position: sticky; z-index: 15; top: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255, 255, 255, .94); backdrop-filter: blur(10px); }
.preparation-nav .container { display: flex; justify-content: center; gap: 38px; min-height: 58px; align-items: center; }
.preparation-nav a { color: #486276; font-size: 12px; font-weight: 800; }
.guide-heading { max-width: 720px; }
.guide-heading > span { display: inline-flex; margin-bottom: 13px; padding: 7px 12px; border-radius: 999px; color: var(--brand-dark); background: #e9f8fe; font-size: 10px; font-weight: 900; }
.guide-heading h2 { margin: 0; font-size: 38px; line-height: 1.45; letter-spacing: .02em; text-wrap: balance; }
.guide-heading > p { margin: 15px 0 0; color: var(--muted); font-size: 14px; line-height: 1.9; text-wrap: pretty; }
.lesson-day-flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; margin-top: 44px; }
.lesson-day-flow article { position: relative; min-width: 0; padding: 28px 20px 24px; border: 1px solid var(--line); border-radius: 20px; background: #fff; }
.lesson-day-flow article:not(:last-child)::after { content: "→"; position: absolute; z-index: 2; top: 56px; right: -14px; display: grid; width: 26px; height: 26px; place-items: center; border: 1px solid var(--line); border-radius: 50%; color: var(--brand); background: #fff; font-size: 12px; font-weight: 900; }
.guide-step { position: absolute; top: 18px; right: 18px; color: #9ab0be; font-size: 11px; font-weight: 900; }
.guide-icon { display: grid; width: 56px; height: 56px; margin-bottom: 22px; place-items: center; border-radius: 16px; color: var(--brand-dark); background: var(--pale); }
.simple-icon { position: relative; overflow: hidden; }
.icon-url b { font-size: 12px; letter-spacing: .05em; }
.icon-url::before, .icon-url::after { content: ""; position: absolute; width: 18px; height: 9px; border: 2px solid var(--brand); border-radius: 99px; transform: rotate(-32deg); }
.icon-url::before { top: 12px; left: 9px; }.icon-url::after { right: 9px; bottom: 12px; }
.icon-daw { grid-template-columns: repeat(3, 6px); align-items: end; justify-content: center; gap: 5px; padding-bottom: 14px; }
.icon-daw i { display: block; width: 6px; height: 18px; border-radius: 4px; background: var(--brand); }
.icon-daw i:nth-child(2) { height: 31px; }.icon-daw i:nth-child(3) { height: 23px; }
.icon-browser span { position: absolute; width: 32px; height: 26px; border: 2px solid var(--brand); border-radius: 5px; }
.icon-browser span::before { content: ""; position: absolute; top: 5px; right: 0; left: 0; height: 2px; background: var(--brand); }
.icon-browser i { z-index: 1; width: 8px; height: 8px; margin-top: 6px; border-radius: 50%; background: var(--brand); }
.icon-sound { display: flex; align-items: center; justify-content: center; gap: 4px; }
.icon-sound i { width: 3px; height: 13px; border-radius: 9px; background: var(--brand); }
.icon-sound i:nth-child(2), .icon-sound i:nth-child(4) { height: 28px; }.icon-sound i:nth-child(3) { height: 38px; }
.icon-start span { display: grid; width: 31px; height: 31px; place-items: center; border-radius: 50%; color: #fff; background: var(--brand); font-size: 10px; }
.lesson-day-flow h3 { margin: 0 0 10px; font-size: 16px; line-height: 1.65; }
.lesson-day-flow p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.85; text-wrap: pretty; }
.setup-choice { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 36px; }
.setup-choice > div { position: relative; padding: 26px 26px 25px 72px; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.setup-choice .setup-choice-emphasis { border-color: var(--brand); background: var(--pale); }
.choice-mark { position: absolute; top: 24px; left: 24px; display: grid; width: 32px; height: 32px; place-items: center; border-radius: 50%; color: #fff; background: var(--brand); font-size: 12px; font-weight: 900; }
.setup-choice h3 { margin: 0 0 6px; font-size: 16px; line-height: 1.6; }
.setup-choice p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.8; }
.setup-choice a { display: inline-flex; gap: 14px; margin-top: 12px; color: var(--brand-dark); font-size: 12px; font-weight: 900; }
.audio-setup { background: var(--pale); }
.signal-route { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; align-items: center; gap: 16px; margin: 42px 0; padding: 22px; border: 1px solid var(--line); border-radius: 20px; background: #fff; }
.signal-route > div { display: grid; grid-template-columns: 30px 1fr; align-items: center; column-gap: 10px; }
.signal-route span { grid-row: 1 / 3; display: grid; width: 30px; height: 30px; place-items: center; border-radius: 50%; color: #fff; background: var(--brand); font-size: 10px; font-weight: 900; }
.signal-route strong { font-size: 13px; }.signal-route small { color: var(--muted); font-size: 10px; }
.signal-route > i { color: var(--brand); font-style: normal; font-weight: 900; }
.setup-steps { display: grid; gap: 18px; margin: 0; padding: 0; list-style: none; counter-reset: setup; }
.setup-steps > li { display: grid; grid-template-columns: 46px minmax(0, 1fr) 230px; gap: 22px; align-items: center; padding: 28px; border: 1px solid var(--line); border-radius: 22px; background: #fff; }
.setup-number { align-self: start; display: grid; width: 40px; height: 40px; place-items: center; border-radius: 50%; color: #fff; background: var(--brand); font-size: 13px; font-weight: 900; }
.setup-content h3 { margin: 0 0 10px; font-size: 19px; line-height: 1.55; }
.setup-content p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.9; text-wrap: pretty; }
.setup-content .small-note { margin-top: 9px; color: #78909f; font-size: 11px; }
.official-link { display: inline-flex; gap: 10px; margin-top: 13px; color: var(--brand-dark); font-size: 12px; font-weight: 900; }
.menu-path { display: flex; flex-wrap: wrap; align-items: center; gap: 7px; margin-top: 14px; }
.menu-path span { padding: 7px 10px; border-radius: 8px; color: #365367; background: #edf6fa; font-size: 11px; font-weight: 800; }
.menu-path i { color: var(--brand); font-style: normal; }
.mini-screen { position: relative; overflow: hidden; width: 230px; height: 138px; border: 1px solid var(--line); border-radius: 14px; background: #f7fbfd; }
.account-screen { padding: 22px 20px; }.account-screen i { display: block; width: 100%; height: 10px; margin-bottom: 10px; border-radius: 5px; background: #dcecf4; }.account-screen i:nth-child(2) { width: 78%; }.account-screen b { display: block; margin-top: 17px; padding: 9px; border-radius: 7px; color: #fff; background: var(--brand); font-size: 9px; text-align: center; }
.download-screen { display: grid; place-items: center; align-content: center; gap: 9px; }.download-screen span { display: grid; width: 38px; height: 38px; place-items: center; border-radius: 50%; color: #fff; background: var(--brand); font-size: 22px; }.download-screen b { color: #587082; font-size: 10px; }
.mixer-screen { display: flex; align-items: flex-end; justify-content: center; gap: 12px; padding: 16px 18px 31px; background: var(--navy); }.mixer-screen i { width: 22px; border-radius: 4px 4px 0 0; background: #35556b; }.mixer-screen i:nth-child(1) { height: 48px; }.mixer-screen i:nth-child(2) { height: 75px; background: var(--brand); }.mixer-screen i:nth-child(3) { height: 60px; }.mixer-screen i:nth-child(4) { height: 85px; }.mixer-screen b { position: absolute; right: 0; bottom: 0; left: 0; padding: 8px; color: #fff; background: var(--brand); font-size: 9px; text-align: center; }
.insert-screen { display: grid; align-content: center; padding: 19px; background: var(--navy); }.insert-screen b { margin-bottom: 10px; color: #7690a2; font-size: 8px; }.insert-screen strong { padding: 12px; border: 1px solid var(--brand); border-radius: 7px; color: #fff; background: #183b53; font-size: 10px; text-align: center; }
.chrome-screen { padding: 32px 16px 16px; }.chrome-screen i { position: absolute; top: 0; right: 0; left: 0; height: 25px; border-bottom: 1px solid var(--line); background: #fff; }.chrome-screen span { display: block; overflow: hidden; padding: 8px 10px; border-radius: 7px; color: #8ba0ae; background: #fff; font-size: 8px; white-space: nowrap; }.chrome-screen b { display: block; margin: 18px auto 0; width: 76%; padding: 10px; border-radius: 7px; color: #fff; background: var(--brand); font-size: 9px; text-align: center; }
.note-screen { display: grid; grid-template-columns: repeat(3, 5px); align-content: center; justify-content: center; gap: 5px; background: var(--navy); }.note-screen span { position: absolute; top: 20px; left: 22px; display: grid; width: 36px; height: 36px; place-items: center; border-radius: 50%; color: #fff; background: var(--brand); font-size: 20px; }.note-screen i { width: 5px; height: 20px; border-radius: 99px; background: var(--brand); }.note-screen i:nth-of-type(2) { height: 42px; }.note-screen b { position: absolute; right: 18px; bottom: 21px; color: #fff; font-size: 9px; }
.troubleshooting { background: #fff; }
.troubleshooting-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: 74px; align-items: start; }
.trouble-list { border-top: 1px solid var(--line); }
.trouble-list details { border-bottom: 1px solid var(--line); }
.trouble-list summary { position: relative; padding: 22px 42px 22px 0; cursor: pointer; color: var(--ink); font-size: 14px; font-weight: 900; list-style: none; }
.trouble-list summary::-webkit-details-marker { display: none; }
.trouble-list summary::after { content: "+"; position: absolute; top: 18px; right: 4px; display: grid; width: 28px; height: 28px; place-items: center; border-radius: 50%; color: var(--brand); background: var(--pale); }
.trouble-list details[open] summary::after { content: "−"; }
.trouble-list details p { margin: -5px 42px 22px 0; color: var(--muted); font-size: 12px; line-height: 1.9; }
.final-check { color: #fff; background: var(--navy); }
.final-check-inner { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; align-items: center; }
.final-check h2 { margin: 0; font-size: 38px; line-height: 1.45; }
.final-check p:not(.preparation-label) { margin: 15px 0 0; color: #c7d7e1; font-size: 13px; line-height: 1.9; }
.final-check .preparation-label { color: #6bd2f7; }
.final-check ul { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 0; padding: 0; list-style: none; }
.final-check li { display: grid; grid-template-columns: 28px 1fr; align-items: center; gap: 10px; min-height: 70px; padding: 15px; border: 1px solid #355167; border-radius: 14px; color: #d9e5ec; font-size: 12px; line-height: 1.7; }
.final-check li span { display: grid; width: 26px; height: 26px; place-items: center; border-radius: 50%; color: #fff; background: var(--brand); font-weight: 900; }
.preparation-support { padding: 70px 0; background: var(--pale); }
.preparation-support-inner { display: grid; grid-template-columns: 1fr auto; gap: 50px; align-items: center; }
.preparation-support h2 { margin: 0; font-size: 28px; line-height: 1.5; }
.preparation-support p { margin: 10px 0 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.preparation-support-actions { display: flex; gap: 10px; }
.official-sources { padding: 26px 0; border-top: 1px solid var(--line); background: #f8fbfd; }
.official-sources p { margin: 0; color: #8296a4; font-size: 10px; line-height: 1.7; }
.official-sources div div { display: flex; flex-wrap: wrap; gap: 14px 22px; margin-top: 8px; }
.official-sources a { color: #607989; font-size: 10px; text-decoration: underline; text-underline-offset: 3px; }

@media (max-width: 760px) {
  .container { width: min(100% - 32px, 1160px); }
  .desktop-nav { display: none; }
  .site-header { height: 70px; }
  .header-logo { width: 80px; height: 58px; }
  .header-cta { min-height: 38px; padding: 0 16px; font-size: 12px; }
  .mobile-only { display: block; }
  .desktop-only { display: none; }

  .hero-inner { min-height: 610px; padding: 68px 0 46px; }
  .hero h1 { font-size: 36px; line-height: 1.42; letter-spacing: .015em; }
  .hero h1 .accent-line { margin-top: 4px; }
  .hero-copy { max-width: 330px; margin-top: 20px; font-size: 13px; line-height: 1.9; }
  .hero-actions { width: 100%; flex-direction: column; align-items: stretch; gap: 10px; margin-top: 25px; }
  .button { width: 100%; min-height: 50px; }
  .hero-points { flex-wrap: wrap; justify-content: center; gap: 7px; margin-top: 22px; }
  .hero-points span { padding: 7px 10px; font-size: 10px; }
  .sound-wave { height: 48px; gap: 5px; margin-top: 22px; transform: scale(.78); }

  .concerns { padding: 36px 0 58px; }
  .concern-grid { grid-template-columns: 1fr; gap: 10px; }
  .concern-card { grid-template-columns: 34px 1fr; gap: 12px; padding: 20px; }
  .concern-card h3 { font-size: 14px; }
  .concern-card p { font-size: 12px; }

  .section { padding: 70px 0; }
  .section-title { font-size: 29px; line-height: 1.45; }
  .section-title span { display: block; }
  .section-copy { font-size: 13px; line-height: 1.9; }
  .service-grid { grid-template-columns: 1fr; gap: 16px; margin-top: 30px; }
  .service-content { padding: 22px; }
  .service-content h3 { font-size: 21px; }
  .service-content > p { min-height: auto; font-size: 13px; }

  .lesson-grid { grid-template-columns: 1fr; gap: 38px; }
  .lesson-copy h2 { font-size: 28px; line-height: 1.55; }
  .lesson-copy > p:not(.eyebrow) { font-size: 13px; line-height: 1.9; }
  .lesson-copy li { display: grid; grid-template-columns: 23px 1fr; align-items: center; font-size: 12px; line-height: 1.7; }
  .lesson-copy li::before { margin-right: 0; }
  .price-panel { padding: 24px 20px; }
  .price-panel h3 { font-size: 23px; }
  .price-list > div { align-items: flex-end; padding: 17px; }
  .price-list strong { font-size: 22px; }

  .flow-heading-row { display: grid; gap: 22px; }
  .flow-guide-button { min-width: 0; width: 100%; padding: 15px 17px; }
  .flow-grid { grid-template-columns: 1fr; gap: 0; margin-top: 30px; }
  .flow-grid article { display: grid; grid-template-columns: 40px 1fr; column-gap: 12px; padding: 20px 0; border-top: 1px solid var(--line); }
  .flow-grid article > span { grid-row: 1 / 3; width: 32px; height: 32px; margin: 0; }
  .flow-grid h3 { margin-top: 3px; }
  .flow-grid p { font-size: 12px; }

  .video-grid { grid-template-columns: 1fr; gap: 14px; margin-top: 28px; }
  .video-card span { right: 12px; bottom: 12px; left: 12px; font-size: 12px; }
  .video-actions { margin-top: 22px; }
  .youtube-button { width: 100%; }
  .faq-layout { grid-template-columns: 1fr; gap: 32px; }
  .faq-heading { position: static; }
  .faq-help { margin: 20px 0 18px; }
  .faq-heading .button { width: 100%; }
  .faq-list summary { grid-template-columns: 26px 1fr; gap: 10px; padding: 21px 42px 21px 0; font-size: 13px; line-height: 1.75; }
  .faq-list summary::after { top: 19px; right: 0; width: 28px; height: 28px; }
  .faq-list summary > span, .faq-answer > span { width: 24px; height: 24px; font-size: 10px; }
  .faq-answer { grid-template-columns: 26px 1fr; gap: 10px; padding: 0 4px 22px 0; }
  .faq-answer p { font-size: 12px; line-height: 1.9; }
  .contact { padding: 68px 0 70px; }
  .contact-heading h2 { font-size: 27px; }
  .contact-choice-grid { grid-template-columns: 1fr; gap: 14px; }
  .contact-choice { grid-template-columns: 58px 1fr; gap: 16px; padding: 24px 20px; }
  .contact-choice h3 { font-size: 19px; }
  .contact-choice-icon { width: 58px; height: 58px; }
  .contact-choice-icon span { width: 27px; height: 19px; }
  .contact-choice-icon span::before, .contact-choice-icon span::after { width: 15px; }
  .line-badge { width: 58px; height: 58px; margin-inline: auto; }
  .contact-choice .line-badge { margin: 0; }
  .result-card { padding: 36px 22px; }
  .result-actions { flex-direction: column; }
  .footer-inner nav { flex-wrap: wrap; justify-content: center; line-height: 1.8; }
  .legal-container { width: min(100% - 32px, 860px); }
  .legal-hero { padding: 64px 0 52px; }
  .legal-hero h1 { font-size: 32px; }
  .legal-content { margin-top: 28px; margin-bottom: 60px; padding: 32px 22px; border-radius: 18px; }
  .legal-content section + section { margin-top: 34px; padding-top: 32px; }
  .legal-content h2 { font-size: 19px; }
  .legal-content p, .legal-content li, .legal-content dd { font-size: 13px; line-height: 1.9; }
  .commerce-list > div { grid-template-columns: 1fr; gap: 7px; padding: 22px 0; }
  .creator-hero { padding: 68px 0; }
  .creator-hero-grid, .creator-profile-grid, .creator-message-inner { grid-template-columns: 1fr; gap: 40px; }
  .creator-intro h1 { font-size: 36px; }
  .creator-lead { font-size: 25px; }
  .creator-mark { min-height: 280px; border-radius: 38px; }
  .creator-mark img { width: min(72%, 260px); }
  .creator-profile h2, .creator-values h2 { font-size: 28px; }
  .creator-value-grid { grid-template-columns: 1fr; gap: 14px; }
  .creator-value-grid article { padding: 26px; }
  .creator-message { padding: 70px 0; }
  .creator-message h2 { font-size: 29px; }

  .preparation-hero-grid { min-height: auto; grid-template-columns: 1fr; gap: 42px; padding-block: 58px 64px; }
  .preparation-hero h1 { font-size: 38px; }
  .preparation-lead { font-size: 13px; line-height: 1.9; }
  .preparation-hero-actions { flex-direction: column; }
  .connection-visual { min-height: 285px; border-radius: 26px; }
  .connection-device { top: 46px; left: 22px; width: 205px; height: 134px; padding-top: 40px; }
  .connection-line { top: 117px; right: 75px; transform: scale(.78); }
  .connection-person { top: 82px; right: 21px; width: 54px; height: 54px; }
  .connection-person span { top: 10px; left: 18px; }.connection-person i { right: 10px; bottom: 8px; left: 10px; }
  .connection-visual > p { bottom: 35px; font-size: 16px; }
  .preparation-nav { overflow-x: auto; }
  .preparation-nav .container { width: max-content; min-width: 100%; justify-content: flex-start; gap: 22px; padding-inline: 16px; }
  .preparation-nav a { white-space: nowrap; font-size: 11px; }
  .guide-heading h2 { font-size: 29px; }
  .guide-heading > p { font-size: 13px; }
  .lesson-day-flow { grid-template-columns: 1fr; gap: 12px; margin-top: 30px; }
  .lesson-day-flow article { display: grid; grid-template-columns: 52px 1fr; column-gap: 14px; padding: 20px; }
  .lesson-day-flow article:not(:last-child)::after { content: "↓"; top: auto; right: auto; bottom: -19px; left: 32px; }
  .guide-step { top: 12px; right: 14px; }
  .guide-icon { grid-row: 1 / 3; width: 50px; height: 50px; margin: 0; border-radius: 14px; }
  .lesson-day-flow h3 { margin: 2px 24px 6px 0; font-size: 15px; }
  .lesson-day-flow p { font-size: 12px; }
  .setup-choice { grid-template-columns: 1fr; gap: 12px; margin-top: 26px; }
  .setup-choice > div { padding: 22px 20px 21px 64px; }
  .choice-mark { top: 20px; left: 18px; }
  .signal-route { grid-template-columns: 1fr; gap: 8px; margin: 30px 0; padding: 18px; }
  .signal-route > i { transform: rotate(90deg); text-align: center; }
  .setup-steps > li { grid-template-columns: 40px 1fr; gap: 14px; padding: 20px; }
  .setup-number { width: 36px; height: 36px; }
  .setup-content h3 { font-size: 17px; }
  .setup-content p { font-size: 12px; }
  .mini-screen { grid-column: 1 / -1; width: 100%; height: 150px; margin-top: 3px; }
  .troubleshooting-grid { grid-template-columns: 1fr; gap: 32px; }
  .trouble-list summary { font-size: 13px; line-height: 1.7; }
  .final-check-inner { grid-template-columns: 1fr; gap: 30px; }
  .final-check h2 { font-size: 29px; }
  .final-check ul { grid-template-columns: 1fr; gap: 8px; }
  .final-check li { min-height: 62px; }
  .preparation-support { padding: 58px 0; }
  .preparation-support-inner { grid-template-columns: 1fr; gap: 26px; }
  .preparation-support h2 { font-size: 25px; }
  .preparation-support-actions { flex-direction: column; }
  .official-sources div div { display: grid; gap: 8px; }
}