:root {
  --ink: #101116;
  --muted: #656977;
  --paper: #f6f4ef;
  --white: #fff;
  --line: rgba(16, 17, 22, 0.12);
  --violet: #5657f6;
  --violet-dark: #3737c9;
  --acid: #f1f337;
  --green: #19b76a;
  --radius: 28px;
  --shadow: 0 24px 70px rgba(20, 20, 30, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 999; padding: 10px 16px; background: var(--white); border-radius: 10px; }
.skip-link:focus { top: 16px; }
.section-shell { width: min(1200px, calc(100% - 48px)); margin-inline: auto; }
.section-label { color: var(--violet); font-size: 12px; font-weight: 900; letter-spacing: .16em; text-transform: uppercase; }
.section-heading { max-width: 760px; margin-bottom: 42px; }
.section-heading h2, .split-heading h2 { margin: 10px 0 14px; font-size: clamp(34px, 4vw, 58px); line-height: 1.05; letter-spacing: -.045em; }
.section-heading p, .split-heading p { margin: 0; color: var(--muted); font-size: 17px; line-height: 1.8; }
.split-heading { display: grid; grid-template-columns: 1.25fr .75fr; align-items: end; gap: 48px; max-width: none; }

.site-header { position: sticky; top: 0; z-index: 100; background: rgba(246, 244, 239, .88); border-bottom: 1px solid var(--line); backdrop-filter: blur(18px); }
.nav-shell { width: min(1230px, calc(100% - 40px)); min-height: 76px; margin-inline: auto; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.brand-mark { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 13px 13px 13px 4px; color: var(--white); background: var(--ink); font-size: 22px; font-weight: 950; transform: rotate(-3deg); box-shadow: inset 0 -4px 0 var(--acid); }
.brand strong, .brand small { display: block; }
.brand strong { font-size: 16px; }
.brand small { margin-top: 3px; color: #8a8d97; font-size: 8px; letter-spacing: .14em; }
.main-nav { display: flex; align-items: center; gap: 26px; margin: 0 auto; }
.main-nav a { font-size: 14px; font-weight: 750; }
.main-nav a:hover { color: var(--violet); }
.nav-actions { display: flex; align-items: center; gap: 10px; }
.language-button, .nav-login { border: 0; background: transparent; font-size: 13px; font-weight: 800; cursor: pointer; }
.language-button { width: 40px; height: 40px; border: 1px solid var(--line); border-radius: 50%; }
.nav-login { padding: 10px 8px; }
.nav-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 12px; background: transparent; }
.nav-toggle span { display: block; width: 20px; height: 2px; margin: 5px auto; background: var(--ink); }

.button { min-height: 50px; padding: 0 24px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 1px solid transparent; border-radius: 14px; font-weight: 850; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--white); background: var(--violet); box-shadow: 0 12px 28px rgba(86, 87, 246, .22); }
.button-primary:hover { background: var(--violet-dark); }
.button-accent { color: var(--ink); background: var(--acid); box-shadow: 0 12px 30px rgba(241, 243, 55, .18); }
.button-small { min-height: 42px; padding: 0 17px; font-size: 13px; }
.button-outline-light { color: var(--white); border-color: rgba(255,255,255,.4); }
.text-link { font-weight: 850; border-bottom: 1px solid currentColor; }

.home-hero { position: relative; overflow: hidden; color: var(--white); background: #11141a; }
.home-hero::before { content: ""; position: absolute; inset: 0; opacity: .3; background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px); background-size: 64px 64px; }
.hero-glow { position: absolute; width: 700px; height: 700px; right: -180px; top: -260px; background: radial-gradient(circle, rgba(86,87,246,.4), transparent 66%); }
.hero-grid { position: relative; min-height: 720px; display: grid; grid-template-columns: 1.03fr .97fr; align-items: center; gap: 58px; padding-block: 82px 86px; }
.eyebrow { display: flex; align-items: center; gap: 12px; font-size: 12px; letter-spacing: .08em; }
.eyebrow span { padding: 6px 9px; border-radius: 999px; color: var(--ink); background: var(--acid); font-weight: 950; letter-spacing: .16em; }
.hero-copy h1 { margin: 26px 0 22px; font-size: clamp(52px, 6.1vw, 90px); line-height: .94; letter-spacing: -.075em; }
.hero-copy > p { max-width: 670px; color: #c3c7d1; font-size: 18px; line-height: 1.8; }
.hero-points { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 28px; }
.hero-points span { padding: 8px 12px; border: 1px solid rgba(255,255,255,.17); border-radius: 999px; color: #e5e7ed; font-size: 13px; }
.hero-offer { display: flex; align-items: center; flex-wrap: wrap; gap: 17px; margin-top: 35px; }
.hero-offer > div { margin-right: 4px; }
.hero-offer small { display: block; color: #9fa4b1; }
.hero-offer strong { margin-right: 8px; color: var(--acid); font-size: 34px; }
.hero-offer s { color: #777d89; }
.hero-note { margin-top: 18px !important; font-size: 12px !important; color: #858b98 !important; }
.hero-media { position: relative; perspective: 1000px; }
.hero-card { padding: 20px; border-radius: 30px; color: var(--ink); background: #f7f5ef; box-shadow: 0 36px 80px rgba(0,0,0,.45); transform: rotate(3deg); }
.hero-card img { width: 100%; aspect-ratio: 4/3.3; object-fit: cover; object-position: top; border-radius: 19px; background: #2b2b78; }
.hero-card-top, .hero-card-bottom { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.hero-card-top { padding-bottom: 13px; font-size: 10px; letter-spacing: .15em; font-weight: 900; }
.hero-card-bottom { padding-top: 14px; }
.hero-card-bottom span { color: #777a84; font-size: 12px; }
.hero-sticker { position: absolute; padding: 15px 17px; border-radius: 14px; color: var(--ink); background: var(--white); box-shadow: 0 18px 50px rgba(0,0,0,.3); font-size: 10px; font-weight: 900; letter-spacing: .12em; transform: rotate(-7deg); }
.hero-sticker b { font-size: 15px; letter-spacing: 0; }
.sticker-one { top: 8%; right: -4%; color: var(--ink); background: var(--acid); transform: rotate(7deg); }
.sticker-two { bottom: 5%; left: -7%; }

.trust-strip { background: var(--acid); border-bottom: 1px solid rgba(0,0,0,.12); }
.trust-strip-grid { min-height: 82px; display: grid; grid-template-columns: repeat(4, 1fr); align-items: center; }
.trust-strip-grid > div { padding: 0 24px; border-right: 1px solid rgba(0,0,0,.16); }
.trust-strip-grid > div:first-child { padding-left: 0; }
.trust-strip-grid > div:last-child { border: 0; }
.trust-strip strong, .trust-strip span { display: block; }
.trust-strip strong { font-size: 15px; }
.trust-strip span { margin-top: 4px; font-size: 11px; opacity: .65; }

.audience-section, .method-section, .space-section, .faq-section { padding-block: 116px; }
.audience-grid, .flow-grid, .case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.audience-grid article, .flow-grid article { min-height: 250px; padding: 30px; border: 1px solid var(--line); border-radius: 23px; background: var(--white); }
.audience-grid b, .flow-grid b { display: block; color: var(--violet); font-size: 13px; letter-spacing: .1em; }
.audience-grid h3, .flow-grid h3 { margin: 28px 0 12px; font-size: 24px; }
.audience-grid p, .flow-grid p { color: var(--muted); line-height: 1.75; }

.featured-course { padding-block: 110px; color: var(--white); background: var(--ink); }
.featured-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 74px; align-items: center; }
.featured-visual { position: relative; min-height: 540px; border-radius: var(--radius); overflow: hidden; background: #25246d; }
.featured-visual img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: top; }
.featured-visual::after { content: "¥999"; position: absolute; left: 22px; bottom: 22px; padding: 12px 17px; border-radius: 12px; color: var(--ink); background: var(--acid); font-size: 26px; font-weight: 950; }
.featured-copy h2 { margin: 14px 0 18px; font-size: clamp(38px, 5vw, 64px); line-height: 1.03; letter-spacing: -.05em; }
.featured-copy > p { color: #b7bac5; font-size: 17px; line-height: 1.8; }
.check-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding: 0; margin: 26px 0; list-style: none; }
.check-list li::before { content: "✓"; margin-right: 8px; color: var(--acid); font-weight: 900; }
.price-line { margin: 24px 0; }
.price-line strong { color: var(--acid); font-size: 42px; }
.price-line s { margin-left: 10px; color: #777b87; }
.featured-copy .button { margin-right: 10px; }

.method-section { background: #ece9e2; }
.flow-grid { grid-template-columns: repeat(4, 1fr); }
.flow-grid article { min-height: 280px; background: rgba(255,255,255,.54); }
.flow-grid article:nth-child(4) { color: var(--white); background: var(--violet); }
.flow-grid article:nth-child(4) b, .flow-grid article:nth-child(4) p { color: rgba(255,255,255,.75); }

.case-section { padding-block: 116px; color: var(--white); background: #161820; }
.case-grid article { border: 1px solid rgba(255,255,255,.11); border-radius: 23px; overflow: hidden; background: rgba(255,255,255,.04); }
.case-art { height: 220px; position: relative; overflow: hidden; background: #2b2d3a; }
.case-art::before, .case-art::after { content: ""; position: absolute; border-radius: 50%; filter: blur(1px); }
.case-art::before { width: 230px; height: 230px; right: -40px; top: -50px; background: linear-gradient(145deg, var(--acid), #ff783e); }
.case-art::after { width: 120px; height: 120px; left: 34px; bottom: -20px; border-radius: 28px; background: var(--violet); transform: rotate(22deg); }
.art-two::before { background: linear-gradient(145deg, #64d4ff, var(--violet)); }
.art-three::before { background: linear-gradient(145deg, #ff79b7, #ff7b48); }
.case-grid article > div:last-child { padding: 25px; }
.case-grid h3 { margin: 0 0 10px; font-size: 21px; }
.case-grid p { color: #aeb2bd; line-height: 1.7; }
.case-grid small { color: var(--acid); }

.space-gallery { display: grid; grid-template-columns: 1.3fr .7fr .7fr; grid-template-rows: 230px 230px; gap: 14px; }
.space-gallery figure { margin: 0; position: relative; overflow: hidden; border-radius: 19px; }
.space-gallery img { width: 100%; height: 100%; object-fit: cover; }
.space-gallery figcaption { position: absolute; inset: auto 12px 12px; padding: 8px 11px; border-radius: 9px; color: var(--white); background: rgba(0,0,0,.62); font-size: 12px; backdrop-filter: blur(10px); }
.space-large { grid-row: span 2; }

.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { padding: 23px 0; cursor: pointer; font-size: 18px; font-weight: 850; }
.faq-list p { max-width: 850px; margin: -5px 0 25px; color: var(--muted); line-height: 1.8; }

.final-cta { padding-block: 90px; color: var(--white); background: var(--violet); }
.final-cta-grid { display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: center; }
.final-cta h2 { margin: 0 0 12px; font-size: clamp(38px, 5vw, 64px); letter-spacing: -.05em; }
.final-cta p { margin: 0; color: rgba(255,255,255,.76); }
.final-cta .button { margin-left: 8px; }
.site-footer { padding: 60px 0 24px; color: #d5d7de; background: #111218; }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 50px; }
.footer-brand p { max-width: 500px; color: #8f939e; line-height: 1.8; }
.footer-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 24px; align-content: start; }
.footer-links a { color: #b6bac4; }
.footer-bottom { display: flex; justify-content: space-between; gap: 24px; padding-top: 34px; margin-top: 36px; border-top: 1px solid rgba(255,255,255,.1); color: #777b86; font-size: 12px; }
.floating-contact { position: fixed; right: 20px; bottom: 20px; z-index: 90; padding: 13px 17px; border-radius: 999px; color: var(--ink); background: var(--acid); font-size: 13px; font-weight: 900; box-shadow: 0 14px 40px rgba(0,0,0,.2); }

/* Course landing page */
.course-page { background: #f7f6f2; }
.course-hero { padding: 74px 0 80px; color: var(--white); background: radial-gradient(circle at 80% 20%, rgba(86,87,246,.48), transparent 32%), #10121a; }
.course-hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 64px; align-items: center; }
.course-hero h1 { margin: 20px 0; font-size: clamp(48px, 6.4vw, 88px); line-height: .98; letter-spacing: -.065em; }
.course-hero p { color: #bdc1cc; font-size: 18px; line-height: 1.8; }
.course-cover { padding: 18px; border-radius: 26px; background: #f8f6f0; transform: rotate(2deg); box-shadow: 0 35px 70px rgba(0,0,0,.4); }
.course-cover img { width: 100%; aspect-ratio: 4/3; object-fit: cover; object-position: top; border-radius: 17px; }
.course-meta { display: flex; flex-wrap: wrap; gap: 9px; margin: 25px 0; }
.course-meta span { padding: 8px 11px; border: 1px solid rgba(255,255,255,.17); border-radius: 999px; font-size: 12px; }
.course-price strong { color: var(--acid); font-size: 44px; }
.course-price s { margin-left: 10px; color: #757a87; }
.course-price small { display: block; color: #969ba7; }
.course-hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 25px; }
.proof-bar { border-bottom: 1px solid var(--line); background: var(--white); }
.proof-bar .section-shell { min-height: 94px; display: grid; grid-template-columns: repeat(4, 1fr); align-items: center; text-align: center; }
.proof-bar strong, .proof-bar span { display: block; }
.proof-bar strong { font-size: 20px; }
.proof-bar span { color: var(--muted); font-size: 12px; }
.landing-section { padding-block: 110px; }
.landing-section.dark { color: var(--white); background: #15171e; }
.landing-section.tint { background: #ece9e2; }
.capability-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.capability-grid article { min-height: 250px; padding: 24px; border-radius: 20px; background: var(--white); box-shadow: 0 12px 30px rgba(22,22,30,.06); }
.capability-grid b { color: var(--violet); font-size: 12px; }
.capability-grid h3 { margin: 45px 0 12px; font-size: 21px; }
.capability-grid p { color: var(--muted); font-size: 14px; line-height: 1.7; }
.curriculum { display: grid; grid-template-columns: .76fr 1.24fr; gap: 58px; align-items: start; }
.curriculum-sticky { position: sticky; top: 110px; }
.curriculum-sticky h2 { font-size: clamp(40px, 5vw, 66px); line-height: 1.02; letter-spacing: -.05em; }
.curriculum-sticky p { color: #a9adb8; line-height: 1.8; }
.curriculum-list details { border-bottom: 1px solid rgba(255,255,255,.14); }
.curriculum-list summary { display: grid; grid-template-columns: 62px 1fr auto; align-items: center; gap: 18px; padding: 24px 0; cursor: pointer; }
.curriculum-list summary b { color: var(--acid); font-size: 13px; }
.curriculum-list summary strong { font-size: 18px; }
.curriculum-list summary span { color: #777c87; }
.curriculum-list p { margin: -8px 0 24px 80px; color: #aeb2bd; line-height: 1.8; }
.deliverables { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.deliverables article { padding: 28px; border: 1px solid var(--line); border-radius: 22px; background: rgba(255,255,255,.6); }
.deliverables strong { font-size: 38px; color: var(--violet); }
.deliverables h3 { margin: 24px 0 10px; }
.deliverables p { color: var(--muted); line-height: 1.7; }
.contact-band { padding-block: 90px; color: var(--white); background: var(--violet); }
.contact-band-grid { display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: center; }
.contact-band h2 { margin: 0 0 12px; font-size: clamp(38px, 5vw, 62px); }
.mobile-enroll { display: none; }

/* Campaign visual system */
.course-hero h1 { font-size: clamp(42px, 4.6vw, 65px); line-height: 1.13; letter-spacing: -.045em; text-wrap: balance; }
.course-hero-grid { gap: 48px; }
.hero-trust-line { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-top: 22px; color: #a9adba; font-size: 12px; line-height: 1.7; }
.hero-trust-line span::before { content: '✓'; margin-right: 7px; color: var(--acid); }
.course-showcase { position: relative; padding: 18px 0 70px; min-width: 0; }
.course-showcase figure { margin: 0; overflow: hidden; background: #202133; border: 1px solid #4c4b67; border-radius: 22px; box-shadow: 0 24px 65px #0005; }
.course-showcase img { width: 100%; display: block; aspect-ratio: 16/10; object-fit: cover; }
.showcase-main { transform: rotate(2deg); }
.course-showcase figcaption { padding: 16px 20px; display: grid; gap: 5px; }
.course-showcase figcaption span { color: var(--acid); font-size: 10px; letter-spacing: .15em; }
.course-showcase figcaption strong { font-size: 16px; }
.course-showcase .showcase-small { position: relative; width: 66%; margin: -42px 0 0 -22px; transform: rotate(-4deg); }
.showcase-small img { aspect-ratio: 16/8; }
.showcase-note { position: absolute; right: 0; bottom: 25px; display: grid; gap: 5px; width: 40%; padding: 20px; color: var(--ink); background: var(--acid); border-radius: 16px; transform: rotate(3deg); }
.showcase-note b { font-size: 35px; letter-spacing: -.05em; }
.showcase-note span { font-size: 12px; line-height: 1.6; }
.proof-bar .section-shell { padding-block: 28px; gap: 20px; text-align: left; }
.proof-bar .section-shell > div { position: relative; padding: 8px 14px 8px 42px; border-right: 1px solid var(--line); }
.proof-bar .section-shell > div:last-child { border: 0; }
.proof-bar small { position: absolute; top: 10px; left: 0; color: var(--violet); font-size: 11px; font-weight: 800; }
.proof-bar strong { font-size: 26px; letter-spacing: -.025em; margin-bottom: 6px; }
.proof-bar span { line-height: 1.6; }
.curriculum { grid-template-columns: .9fr 1.1fr; }
.curriculum-sticky h2 { margin: 24px 0; font-size: clamp(32px, 3.5vw, 47px); line-height: 1.22; text-wrap: balance; }
.curriculum-list summary { grid-template-columns: 62px 1fr; }
.curriculum-list summary > span { display: none; }
.case-grid img.case-image { width: 100%; aspect-ratio: 16/10; object-fit: cover; border-radius: 15px; margin: 20px 0 0; }
.visual-case-grid { gap: 24px; }
.visual-case-grid article { padding: 0 0 26px; overflow: hidden; }
.visual-case-grid article > :not(.case-image) { margin-left: 26px; margin-right: 26px; }
.visual-case-grid .case-image { position: relative; margin: 0; }
.visual-case-grid .case-image img { display: block; width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.visual-case-grid .case-image span { position: absolute; bottom: 14px; left: 14px; padding: 7px 10px; border-radius: 6px; background: #15171edb; color: #fff; font-size: 11px; }
.visual-case-grid h3 { font-size: 23px; }
.consult-section { padding: 90px 0; color: #fff; background: #202039; }
.consult-grid { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 70px; }
.consult-grid h2 { font-size: clamp(32px, 3.8vw, 50px); line-height: 1.2; text-wrap: balance; }
.consult-grid p { color: #babccd; line-height: 1.8; }
.consult-grid ol { list-style: none; padding: 0; margin: 0; counter-reset: consult; }
.consult-grid li { counter-increment: consult; position: relative; padding: 22px 0 22px 60px; border-bottom: 1px solid #ffffff24; }
.consult-grid li::before { content: '0' counter(consult); position: absolute; left: 0; color: var(--acid); font-weight: 900; font-size: 24px; }
.consult-grid li > b { display: none; }
.consult-grid li > span { font-size: 20px; font-weight: 750; }
.consult-grid li strong { display: block; font-size: 19px; }
.consult-grid li p { margin: 8px 0 0; font-size: 14px; }
.qr-card { display: flex; flex-direction: column; }
.qr-card header { align-items: start; }
.qr-identity { display: grid; gap: 8px; margin-bottom: 20px; }
.qr-identity strong { font-size: 24px; }
.qr-identity small { color: #6a6e7d; font-size: 14px; }
.qr-card p { flex: 1; }
.qr-image { display: block; }
html[lang='en'] .course-hero h1 { font-size: clamp(40px, 4.4vw, 62px); }
html[lang='en'] .split-heading h2 { font-size: clamp(32px, 3.7vw, 51px); }
@media (max-width: 980px) {
  .course-showcase { max-width: 650px; margin: 0 auto; }
  .curriculum, .consult-grid { grid-template-columns: 1fr; gap: 36px; }
  .course-showcase .showcase-small { margin-left: 0; }
}
@media (max-width: 680px) {
  .course-hero h1, html[lang='en'] .course-hero h1 { font-size: 40px !important; line-height: 1.14; }
  .course-hero p { font-size: 16px; }
  .course-hero-grid { gap: 30px; }
  .course-hero-actions .button { width: 100%; }
  .proof-bar .section-shell > div { padding-left: 30px; }
  .proof-bar strong { font-size: 23px; }
  .proof-bar .section-shell > div:nth-child(2) { border: 0; }
  .curriculum-sticky h2 { font-size: 34px; }
  .consult-section { padding-block: 70px; }
  .qr-card { padding: 22px; }
  .qr-identity strong { font-size: 21px; }
  .qr-card header { gap: 10px; }
  .course-page .site-footer { padding-bottom: 90px; }
}

/* Contact page */
.contact-page { min-height: 100vh; background: #11131a; color: var(--white); }
.contact-main { padding: 72px 0 100px; }
.contact-intro { max-width: 800px; text-align: center; margin: 0 auto 50px; }
.contact-intro h1 { margin: 16px 0; font-size: clamp(44px, 6vw, 76px); line-height: 1; letter-spacing: -.055em; }
.contact-intro p { color: #aeb2bd; line-height: 1.8; }
.qr-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 470px)); justify-content: center; gap: 24px; }
.qr-card { padding: 25px; border-radius: 26px; color: var(--ink); background: var(--white); }
.qr-card header { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 18px; }
.qr-card header span { padding: 6px 10px; border-radius: 999px; background: #eceef6; font-size: 11px; font-weight: 900; }
.qr-card h2 { margin: 0; font-size: 25px; }
.qr-image { width: 100%; aspect-ratio: 1/1; object-fit: contain; border: 1px solid #e6e6e8; border-radius: 18px; background: #fff; }
.qr-card p { color: var(--muted); line-height: 1.7; }
.qr-actions { display: flex; gap: 10px; }
.qr-actions .button { flex: 1; min-height: 44px; padding: 0 12px; font-size: 13px; }
.message-box { max-width: 964px; margin: 26px auto 0; padding: 26px; border: 1px solid rgba(255,255,255,.13); border-radius: 22px; background: rgba(255,255,255,.05); }
.message-box h2 { margin-top: 0; }
.message-copy { display: flex; gap: 12px; align-items: stretch; }
.message-copy p { flex: 1; margin: 0; padding: 16px; border-radius: 12px; color: #d7dae2; background: rgba(0,0,0,.24); line-height: 1.7; }
.contact-note { max-width: 964px; margin: 22px auto 0; color: #848994; font-size: 12px; text-align: center; line-height: 1.7; }

@media (max-width: 980px) {
  .main-nav { position: fixed; left: 20px; right: 20px; top: 72px; display: none; padding: 20px; flex-direction: column; align-items: stretch; border: 1px solid var(--line); border-radius: 18px; background: var(--white); box-shadow: var(--shadow); }
  .main-nav.open { display: flex; }
  .nav-toggle { display: block; margin-left: auto; }
  .nav-actions .nav-login { display: none; }
  .hero-grid, .course-hero-grid, .featured-grid { grid-template-columns: 1fr; }
  .hero-grid { padding-block: 70px 100px; }
  .hero-media { max-width: 650px; margin-inline: auto; }
  .trust-strip-grid { grid-template-columns: repeat(2, 1fr); padding-block: 18px; gap: 18px 0; }
  .trust-strip-grid > div:nth-child(2) { border-right: 0; }
  .audience-grid, .case-grid { grid-template-columns: 1fr 1fr; }
  .flow-grid, .deliverables { grid-template-columns: 1fr 1fr; }
  .capability-grid { grid-template-columns: repeat(2, 1fr); }
  .curriculum { grid-template-columns: 1fr; }
  .curriculum-sticky { position: static; }
  .space-gallery { grid-template-columns: 1fr 1fr; }
  .space-large { grid-row: auto; grid-column: span 2; }
  .final-cta-grid, .contact-band-grid { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .section-shell { width: min(100% - 30px, 1200px); }
  .nav-shell { width: calc(100% - 24px); min-height: 68px; gap: 10px; }
  .brand strong { font-size: 14px; }
  .brand small { display: none; }
  .brand-mark { width: 38px; height: 38px; }
  .nav-actions { gap: 5px; }
  .nav-actions .button { display: none; }
  .language-button { width: 36px; height: 36px; }
  .hero-grid { min-height: 0; padding-block: 58px 78px; gap: 50px; }
  .hero-copy h1 { font-size: 53px; }
  .hero-copy > p { font-size: 16px; }
  .hero-offer { align-items: flex-start; flex-direction: column; }
  .hero-card { padding: 12px; border-radius: 21px; }
  .hero-sticker { display: none; }
  .trust-strip-grid { grid-template-columns: 1fr 1fr; }
  .trust-strip-grid > div { padding: 0 10px; }
  .audience-section, .method-section, .space-section, .faq-section, .landing-section, .case-section { padding-block: 78px; }
  .split-heading { grid-template-columns: 1fr; gap: 12px; }
  .audience-grid, .case-grid, .flow-grid, .deliverables, .capability-grid { grid-template-columns: 1fr; }
  .featured-course { padding-block: 78px; }
  .featured-grid { gap: 45px; }
  .featured-visual { min-height: 430px; }
  .check-list { grid-template-columns: 1fr; }
  .space-gallery { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 10px; }
  .space-gallery figure { min-width: 84vw; height: 300px; scroll-snap-align: start; }
  .final-cta-grid > div:last-child { display: grid; gap: 10px; }
  .final-cta .button { margin: 0; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
  .floating-contact { bottom: 78px; }
  .course-hero { padding-block: 54px 70px; }
  .course-hero h1 { font-size: 50px; }
  .proof-bar .section-shell { grid-template-columns: repeat(2, 1fr); gap: 24px 0; padding-block: 24px; }
  .curriculum-list summary { grid-template-columns: 48px 1fr; }
  .curriculum-list summary span { display: none; }
  .curriculum-list p { margin-left: 0; }
  .mobile-enroll { position: fixed; left: 0; right: 0; bottom: 0; z-index: 110; display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 10px 15px max(10px, env(safe-area-inset-bottom)); background: rgba(16,18,26,.96); box-shadow: 0 -12px 30px rgba(0,0,0,.2); }
  .mobile-enroll strong { color: var(--acid); font-size: 22px; }
  .mobile-enroll .button { min-height: 44px; }
  .qr-grid { grid-template-columns: 1fr; }
  .contact-main { padding-top: 50px; }
  .contact-intro h1 { font-size: 46px; }
  .message-copy { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}