.sales {
  --sale-blue: #142c62;
  --sale-dark: #0b1834;
  --sale-green: #15934b;
  background: #fff;
  color: #192638;
  font-family: Arial, "Segoe UI", sans-serif;
}

.sales h2 { font-size: clamp(1.9rem, 3.4vw, 2.7rem); letter-spacing: -.035em; line-height: 1.16; }
.sales h3 { line-height: 1.25; }
.sale-header { background: #fff; border-bottom: 1px solid #e5eaf3; }
.sale-nav, .sale-nav nav { display: flex; align-items: center; gap: 1.8rem; }
.sale-nav { justify-content: space-between; min-height: 88px; }
.sale-nav a { text-decoration: none; font-weight: 700; }
.sale-nav nav { font-size: .88rem; }
.sale-nav nav a:hover { color: var(--sale-green); }
.sale-brand { display: inline-flex; gap: .7rem; align-items: center; color: var(--sale-blue); text-decoration: none; font-size: 1.85rem; font-weight: 800; letter-spacing: -.03em; line-height: 1; white-space: nowrap; }
.sale-brand small { display: block; margin-top: .32rem; font-size: .61rem; letter-spacing: .19em; }
.brand-symbol { position: relative; display: grid; place-items: center; width: 49px; height: 49px; color: #fff; background: var(--sale-blue); border-radius: 11px; font-size: 1.55rem; letter-spacing: -.1em; padding-right: .2rem; }
.brand-symbol > span { position: absolute; right: -5px; bottom: -3px; width: 22px; height: 22px; background: var(--sale-green); color: #fff; border: 2px solid #fff; border-radius: 50%; display: grid; place-items: center; font-size: .88rem; letter-spacing: 0; }
.sale-nav .nav-enroll { padding: .65rem 1.1rem; border: 1px solid #c3cfdf; border-radius: 5px; color: var(--sale-blue); }

.sale-hero { background: radial-gradient(ellipse at 85% 5%, #315ca0, transparent 48%), linear-gradient(115deg, #0a1936, #142e64 70%, #19386d); color: #fff; padding: 4.3rem 0 4.5rem; }
.sale-hero-grid { display: grid; grid-template-columns: 1.22fr .88fr; gap: clamp(2rem, 6vw, 5rem); align-items: center; }
.sale-tag { display: inline-flex; align-items: center; gap: .45rem; margin-bottom: 1.2rem; font-size: .64rem; font-weight: 800; letter-spacing: .08em; color: #c8ebd5; background: #0a142878; padding: .4rem .7rem; border: 1px solid #ffffff20; border-radius: 4px; }
.sale-tag span { color: #40d378; }
.sale-pitch h1 { font-size: clamp(2.6rem, 4.2vw, 3.9rem); line-height: 1.09; letter-spacing: -.045em; margin-bottom: 1.2rem; }
.sale-pitch h1 em { color: #56e18b; font-style: normal; }
.sale-intro { color: #e0e8f6; font-size: 1.05rem; line-height: 1.65; max-width: 48ch; }
.sale-checks, .included-list, .offer-list { list-style: none; padding: 0; margin: 1.5rem 0; }
.sale-checks li, .included-list li, .offer-list li { position: relative; padding-left: 1.7rem; }
.sale-checks li::before, .included-list li::before, .offer-list li::before { content: "✓"; color: #24bc64; position: absolute; left: 0; font-weight: 800; }
.sale-checks li { margin-top: .65rem; color: #fff; font-size: .97rem; }
.sale-button { display: inline-flex; align-items: center; justify-content: center; gap: .8rem; background: var(--sale-green); color: #fff; padding: 1.05rem 1.3rem; min-height: 54px; font-size: .85rem; line-height: 1.25; font-weight: 800; border-radius: 6px; text-decoration: none; text-align: center; box-shadow: 0 9px 24px #08742b22; transition: background .15s, transform .15s; }
.sale-button:hover { background: #0c7c3c; transform: translateY(-1px); }
.sale-button span { font-size: 1.15rem; }
.hero-footnote { color: #c5d0e4; margin-top: .85rem; font-size: .8rem; }
.purchase-card { background: #fff; color: #20304a; border-radius: 12px; box-shadow: 0 22px 50px #050e2b55; overflow: hidden; }
.course-cover { padding: .8rem .8rem 0; background: #eaf0fa; }
.cover-caption { display: flex; justify-content: space-between; color: var(--sale-blue); font-size: .62rem; font-weight: 800; letter-spacing: .07em; padding: 0 .1rem .55rem; }
.course-cover img { border-radius: 5px 5px 0 0; height: auto; width: 100%; }
.purchase-body { padding: 1.55rem 1.9rem 1.45rem; text-align: center; }
.purchase-kicker { font-size: .73rem; font-weight: 700; color: #647087; letter-spacing: .1em; margin-bottom: .9rem; }
.single-payment { color: #647087; font-size: .88rem; }
.large-price { display: flex; justify-content: center; align-items: baseline; color: var(--sale-blue); font-size: 4.45rem; font-weight: 800; letter-spacing: -.075em; line-height: 1.08; margin: .25rem 0 .9rem; }
.large-price > span { font-size: 1.6rem; margin-right: .3rem; letter-spacing: -.03em; }
.large-price sup { font-size: 2.6rem; top: auto; align-self: flex-start; margin-top: .25rem; letter-spacing: -.04em; }
.included-list { text-align: left; padding-top: .65rem; border-top: 1px solid #e3e8f0; margin: 1rem 0 1.2rem; }
.included-list li { font-size: .87rem; margin-top: .5rem; }
.purchase-body .sale-button, .final-price-card .sale-button { width: 100%; }
.payment-note { margin-top: .8rem; font-size: .72rem; color: #65718a; line-height: 1.4; }
.benefit-strip { background: #fff; border-bottom: 1px solid #e4e9f1; }
.benefit-strip > div { display: grid; grid-template-columns: repeat(3,1fr); padding-block: 1.5rem; gap: 1.6rem; }
.benefit-strip p { display: flex; align-items: center; gap: .85rem; justify-content: center; }
.strip-icon { font-size: 1.7rem; color: var(--sale-green); }
.benefit-strip strong, .benefit-strip small { display: block; }
.benefit-strip strong { font-size: .9rem; }
.benefit-strip small { color: #68758a; font-size: .79rem; }

.sale-section { padding-block: clamp(3.5rem, 6vw, 5.8rem); }
.section-heading { max-width: 740px; margin-inline: auto; text-align: center; margin-bottom: 2.5rem; }
.section-kicker { color: var(--sale-green); font-size: .72rem; font-weight: 800; letter-spacing: .1em; margin-bottom: .9rem; }
.section-heading h2 + p { max-width: 59ch; margin: 1rem auto 0; color: #667185; font-size: 1rem; }
.audience-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.3rem; }
.audience-grid article { padding: 1.8rem 1.5rem; border: 1px solid #e1e6ef; border-radius: 9px; box-shadow: 0 6px 16px #13244905; }
.number-icon { display: grid; place-items: center; width: 43px; height: 43px; background: #eaf1fe; color: var(--sale-blue); border-radius: 9px; font-weight: 800; font-size: .9rem; margin-bottom: 1.1rem; }
.audience-grid h3 { font-size: 1.18rem; letter-spacing: -.025em; }
.audience-grid p { margin-top: .7rem; color: #667185; font-size: .94rem; }
.audience-grid a { display: inline-block; color: var(--sale-green); font-size: .82rem; font-weight: 700; margin-top: 1.1rem; text-decoration: none; }
.lesson-section, .faq-sale { background: #f4f6fa; border-block: 1px solid #e5eaf1; }
.course-path { display: grid; grid-template-columns: 1fr 1fr; gap: 1.6rem; align-items: start; }
.path-group { background: #fff; border: 1px solid #dce4f0; border-radius: 9px; overflow: hidden; }
.path-heading { background: var(--sale-blue); color: #fff; padding: 1.35rem 1.6rem; }
.path-heading > span { color: #c5d6f3; font-weight: 700; font-size: .68rem; letter-spacing: .1em; }
.path-heading h3 { font-size: 1.2rem; margin-top: .4rem; letter-spacing: -.02em; }
.practical .path-heading { background: #12623b; }
.practical .path-heading > span { color: #b6e4c9; }
.sale-lessons { list-style: none; padding: 0 1.6rem; margin: 0; }
.sale-lessons li { display: flex; align-items: flex-start; gap: .9rem; padding: 1rem 0; border-bottom: 1px solid #e7eaf1; }
.sale-lessons li:last-child { border-bottom: 0; }
.sale-lessons li > span { color: #687c9e; font-size: .77rem; margin-top: .1rem; font-weight: 700; width: 1.4rem; flex: none; }
.sale-lessons h4 { font-size: .96rem; margin: 0; line-height: 1.3; }
.sale-lessons p { margin-top: .2rem; color: #6b7586; font-size: .83rem; }
.path-note { display: flex; gap: .75rem; margin: .2rem 1.6rem 1.6rem; padding: .8rem 1rem; background: #eaf7ef; color: #25543b; font-size: .84rem; border-radius: 6px; }
.path-note > span { color: var(--sale-green); font-weight: 800; }
.practical-section { display: grid; grid-template-columns: 1.1fr 1fr; align-items: center; gap: 3rem; }
.story-photo { overflow: hidden; border-radius: 9px; box-shadow: 0 18px 40px #13244912; }
.story-photo img { width: 100%; height: auto; }
.section-copy { margin-top: 1.05rem; color: #667185; }
.text-link { display: inline-block; color: var(--sale-green); font-weight: 700; margin-top: 1rem; text-decoration: none; font-size: .88rem; }

.material-section { background: #edf3fd; border-block: 1px solid #e1e9f7; }
.material-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3.6rem; align-items: center; }
.workbook-mock { border: 1px solid #ceded5; border-radius: 9px; box-shadow: 0 20px 38px #1b3e2914; background: #fff; transform: rotate(-2deg); overflow: hidden; }
.workbook-bar { display: flex; align-items: center; gap: .6rem; padding: .95rem 1.1rem; background: #165f3b; color: #fff; font-size: .9rem; }
.sheet-icon { font-size: 1.5rem; line-height: 1; }
.workbook-bar > span:last-child { margin-left: auto; font-size: .6rem; border: 1px solid #ffffff55; padding: .15rem .3rem; border-radius: 3px; }
.workbook-content { padding: 1.6rem 1.4rem 1.2rem; }
.workbook-content > p { font-size: .72rem; color: #56806b; letter-spacing: .07em; font-weight: 700; }
.workbook-content table { border-collapse: collapse; width: 100%; margin: 1.1rem 0 1.5rem; font-size: .84rem; }
.workbook-content th, .workbook-content td { padding: .8rem .6rem; border-bottom: 1px solid #e0e9e4; }
.workbook-content th { text-align: left; font-weight: 400; }
.workbook-content td { text-align: right; font-weight: 700; color: #165f3b; white-space: nowrap; }
.workbook-content tr:first-child { background: #edf7f1; }
.sheet-tab { display: inline-block; background: #f0f5f2; border: 1px solid #d9e6de; color: #36624a; padding: .3rem .45rem; font-size: .62rem; margin: .15rem .15rem 0 0; border-radius: 3px; }
.material-description h3 { font-size: 1.55rem; letter-spacing: -.035em; }
.material-description p { margin: .7rem 0 1.45rem; color: #62718b; }
.final-offer-section { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 4.2rem; max-width: 1000px; }
.offer-copy > p:not(.section-kicker) { color: #667185; margin-top: 1rem; }
.offer-list li { margin-top: .65rem; }
.final-price-card { text-align: center; border: 1px solid #cee1d5; border-top: 5px solid var(--sale-green); border-radius: 10px; padding: 2rem; background: #fff; box-shadow: 0 16px 42px #13244912; }
.offer-label { color: #567196; font-size: .7rem; font-weight: 800; letter-spacing: .12em; }
.final-price-card h3 { margin: .7rem 0 1.2rem; font-size: 1.35rem; }
.final-price-card .large-price { font-size: 5rem; }
.guarantee { display: flex; align-items: center; gap: .85rem; margin-top: 1.5rem; padding-top: 1.3rem; border-top: 1px solid #e5eaf1; text-align: left; }
.guarantee-number { display: grid; align-content: center; width: 54px; height: 61px; flex: none; text-align: center; color: var(--sale-green); border: 2px solid #b5d9c4; border-radius: 10px; font-size: 1.9rem; font-weight: 800; line-height: 1; }
.guarantee-number small { font-size: .56rem; letter-spacing: .1em; margin-top: .25rem; }
.guarantee strong { font-size: .82rem; }
.guarantee p { color: #758094; font-size: .73rem; line-height: 1.45; margin-top: .2rem; }
.checkout-status { margin-top: 1rem; font-size: .71rem; color: #6c788a; }
.sale-faq { max-width: 790px; margin-inline: auto; }
.sale-faq details { padding: .1rem 1.15rem; background: #fff; border: 1px solid #dde4ee; margin-bottom: .65rem; border-radius: 6px; }
.sale-faq summary { font-size: .95rem; }
.sale-faq details p { font-size: .9rem; color: #667185; margin-left: 0; padding-left: 0; }
.article-entry { display: flex; justify-content: space-between; align-items: center; gap: 2rem; }
.article-entry p:not(.section-kicker) { color: #667185; margin-top: 1rem; max-width: 52ch; }
.outline-button { display: inline-flex; gap: .8rem; align-items: center; justify-content: center; border: 1px solid #b9c7db; color: var(--sale-blue); border-radius: 5px; padding: 1rem 1.2rem; font-size: .78rem; font-weight: 800; text-decoration: none; flex: none; }
.sale-footer { background: var(--sale-dark); color: #b7c4db; padding-block: 2.5rem; font-size: .8rem; }
.sale-footer > div { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.sale-footer .sale-brand { color: #fff; font-size: 1.6rem; }
.sale-footer .brand-symbol { background: #28457d; }
.sale-footer .brand-symbol > span { border-color: var(--sale-dark); }
.image-terms { margin-top: 1.8rem; padding-top: 1.2rem; border-top: 1px solid #ffffff22; font-size: .75rem; line-height: 1.7; }
.image-terms summary { cursor: pointer; width: fit-content; }
.image-terms details > p { margin-top: .6rem; max-width: 85ch; color: #b7c4db; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }

@media (max-width: 900px) {
  .sale-nav nav { gap: 1rem; }
  .sale-hero-grid { gap: 2rem; grid-template-columns: 1.1fr .9fr; }
  .sale-pitch h1 { font-size: 2.75rem; }
  .sale-tag { font-size: .56rem; }
  .purchase-body { padding: 1.35rem; }
  .practical-section, .material-grid, .final-offer-section { gap: 2rem; }
}

@media (max-width: 720px) {
  .sale-nav { min-height: 74px; padding-block: .8rem; gap: 1rem; }
  .sale-nav nav { gap: .85rem; }
  .sale-nav nav a { font-size: .73rem; }
  .sale-nav nav a:first-child, .sale-nav nav a:nth-child(2) { display: none; }
  .sale-nav .nav-enroll { padding: .5rem .65rem; }
  .sale-brand { font-size: 1.5rem; gap: .5rem; }
  .brand-symbol { width: 40px; height: 42px; font-size: 1.3rem; }
  .sale-hero { padding: 2.7rem 0 3.1rem; }
  .sale-hero-grid, .course-path, .practical-section, .material-grid, .final-offer-section { grid-template-columns: 1fr; }
  .sale-hero-grid { gap: 2rem; }
  .sale-pitch h1 { font-size: clamp(2.5rem, 8vw, 3.4rem); }
  .sale-tag { font-size: .55rem; letter-spacing: .03em; padding-inline: .55rem; }
  .sale-intro { font-size: 1rem; }
  .sale-checks li { font-size: .91rem; }
  .sale-pitch > .sale-button { width: 100%; }
  .purchase-card { max-width: 440px; width: 100%; margin-inline: auto; }
  .benefit-strip > div { gap: .9rem; padding-block: 1.2rem; }
  .benefit-strip p { display: block; text-align: center; }
  .benefit-strip strong { font-size: .75rem; line-height: 1.4; }
  .benefit-strip small { font-size: .67rem; margin-top: .2rem; }
  .strip-icon { font-size: 1.4rem; }
  .audience-grid { grid-template-columns: 1fr; gap: .8rem; }
  .audience-grid article { padding: 1.5rem; }
  .section-heading { margin-bottom: 1.8rem; }
  .practical-section > div:last-child { order: -1; }
  .workbook-mock { transform: none; }
  .final-offer-section { gap: 1.8rem; }
  .final-price-card { max-width: 440px; width: 100%; margin-inline: auto; padding: 1.6rem; }
  .article-entry, .sale-footer > div { flex-direction: column; align-items: flex-start; }
  .article-entry .outline-button { width: 100%; }
}

@media (max-width: 380px) {
  .sale-nav nav a:not(.nav-enroll) { display: none; }
  .sale-pitch h1 { font-size: 2.5rem; }
  .sale-tag { font-size: .5rem; }
}
