/* Standalone first-course campaign. Product state remains owned by page-v12.js. */
:root {
  --ink: #14263d;
  --body: #536171;
  --orange: #a9542b;
  --accent: #f2a477;
  --line: #d3dde5;
  --surface: #edf2f7;
  --content-max: 1200px;
  --gutter: clamp(16px, 4vw, 32px);
  --nav-height: 72px;
  --fs-section-h2: clamp(30px, 4vw, 48px);
  --radius: 20px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-height) + 16px); }
body { margin: 0; background: #fff; color: var(--ink); font-family: "Pretendard Variable", Pretendard, "Apple SD Gothic Neo", sans-serif; font-size: 16px; line-height: 1.7; letter-spacing: -.025em; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p, figure, dl, dd { margin: 0; }
h1, h2, h3, p, dd { word-break: keep-all; overflow-wrap: anywhere; }
em { font-style: normal; }
[hidden] { display: none !important; }
.nowrap { white-space: nowrap; }
.sprite, .sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.icon { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: none; }
:focus-visible { outline: 3px solid var(--ink); outline-offset: 4px; box-shadow: 0 0 0 4px #fff; }
.skip { position: fixed; z-index: 100; top: -100px; left: 16px; padding: 12px 20px; background: #fff; }
.skip:focus { top: 12px; }
.container { width: calc(100% - var(--gutter) * 2); max-width: var(--content-max); margin-inline: auto; }
.section-pad { padding-block: 100px; }
.section-heading { max-width: 760px; }
.section-heading.centered { margin-inline: auto; text-align: center; }
.section-label { margin-bottom: 14px; font-size: 14px; font-weight: 700; color: var(--orange); letter-spacing: .02em; }
h2 { font-size: var(--fs-section-h2); line-height: 1.3; font-weight: 780; letter-spacing: -.055em; }
h3 { font-size: 24px; line-height: 1.45; font-weight: 730; letter-spacing: -.035em; }
.section-heading > p:last-child { margin-top: 18px; font-size: 17px; line-height: 1.8; color: var(--body); }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 18px; min-height: 54px; padding: 14px 26px; border: 1px solid transparent; border-radius: 10px; font-size: 16px; font-weight: 700; line-height: 1.5; transition: background-color .18s, box-shadow .18s; }
.button.primary { background: var(--ink); color: #fff; }
.button.primary:hover { background: #29475d; }
.button:disabled, .button:disabled:hover { background: #e8ecef; color: #536171; cursor: not-allowed; }
.detail-link { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding-block: 6px; color: #29475d; font-size: 14px; font-weight: 600; line-height: 1.6; }
.detail-link:hover { text-decoration: underline; text-underline-offset: 4px; }

/* Compact navigation keeps every section reachable without covering the offer. */
.nav { position: sticky; top: 0; z-index: 20; min-height: var(--nav-height); display: flex; align-items: center; justify-content: space-between; gap: 28px; padding: 12px max(var(--gutter), calc((100vw - var(--content-max)) / 2)); border-bottom: 1px solid #14263d0d; background: #fff; }
.brand { display: flex; align-items: center; min-height: 44px; flex: none; }
.brand img { width: 144px; }
.nav-sections, .account-links { display: flex; align-items: center; gap: 24px; }
.nav-sections a, .account-links a { display: inline-flex; align-items: center; min-height: 44px; font-size: 14px; white-space: nowrap; }
.nav-sections a { color: var(--body); }
.nav-sections a:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 5px; }
.account-links { gap: 18px; }
.account-links a { font-size: 13px; }
.account-primary { font-weight: 750; }

/* The entire package is visible on entry; no pinned scroll or hidden entrance. */
#fan-section { background: linear-gradient(150deg, #edf1fa 0%, #e6f0f7 58%, #f2f5f8 100%); overflow: clip; }
#fan-sticky { width: calc(100% - var(--gutter) * 2); max-width: 1100px; margin-inline: auto; padding: 40px 0 32px; text-align: center; }
.eyebrow { display: inline-block; color: #344e69; font-size: 14px; font-weight: 700; letter-spacing: .015em; }
h1 { margin-top: 16px; font-size: clamp(44px, 5.6vw, 74px); line-height: 1.12; letter-spacing: -.065em; font-weight: 850; }
h1 em { color: var(--orange); }
.hero-description { margin-top: 18px; font-size: 17px; line-height: 1.7; color: #40556a; }
.hero-availability { margin-top: 12px; font-size: 13px; color: #40556a; }
#fan-stage { position: relative; max-width: 780px; margin: 20px auto 0; padding: 16px 8px 0; }
#fan-stage::before { content: ""; position: absolute; bottom: 42px; left: 4%; right: 4%; height: 142px; border-radius: 100%; background: #cbdce9; }
#fan-canvas { position: relative; display: grid; grid-template-columns: 1.8fr 1fr 1fr; gap: 26px; align-items: end; width: 100%; }
.fan-item { min-width: 0; position: relative; }
.fan-item--lecture { z-index: 2; }
.device { position: relative; padding: 12px 8px 8px; border: 2px solid #6a747f; border-radius: 14px; background: #172636; box-shadow: 0 12px 20px #14263d20; }
.device img { width: 100%; border-radius: 4px; }
.camera { position: absolute; top: 4px; left: 50%; width: 3px; height: 3px; border-radius: 50%; background: #9ba9b6; }
.book { position: relative; width: 88%; margin-inline: auto; box-shadow: 0 12px 20px #14263d20; }
.book img { width: 100%; }
.book::after { content: ""; position: absolute; inset: 0; border-left: 4px solid #ffffff45; pointer-events: none; }
.book-pages { display: none; }
.fan-item figcaption { margin-top: 20px; font-size: 13px; font-weight: 700; color: #344e69; }
.stage-footer { margin-top: 24px; }
.stage-footer .button { min-width: 240px; }
.hero-art-note { margin-top: 14px; font-size: 12px; color: #536171; }
.package-strip { background: var(--ink); color: #f3f6fa; padding-block: 20px; }
.package-strip .container { display: flex; justify-content: center; align-items: center; gap: 56px; }
.package-strip span { display: flex; align-items: center; gap: 10px; font-size: 15px; font-weight: 600; }
.package-strip .icon { color: var(--accent); width: 18px; height: 18px; }

/* Real materials, each with a clear role in the learning sequence. */
.bundle-stack { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 20px; margin-top: 44px; }
.bundle-piece { min-width: 0; padding: 32px 28px 24px; background: #f1f5f8; border-radius: var(--radius); }
.bundle-subnote { background: #f8f3ee; }
.piece-number { display: block; color: #687a8c; font-size: 13px; font-weight: 650; margin-bottom: 12px; }
.bundle-copy strong { display: block; font-size: 24px; font-weight: 750; letter-spacing: -.04em; }
.bundle-copy p { max-width: 34ch; color: var(--body); font-size: 15px; line-height: 1.8; margin-top: 10px; }
.bundle-art { height: 260px; display: flex; align-items: center; justify-content: center; padding-top: 28px; }
.bundle-lecture img { width: 100%; border: 7px solid #233344; border-radius: 10px; box-shadow: 0 14px 20px #14263d21; }
.bundle-textbook img, .bundle-subnote img { height: 212px; width: auto; max-width: 100%; object-fit: contain; box-shadow: 0 12px 18px #14263d20; }
.bundle-notes { margin-top: 28px; text-align: center; color: var(--body); font-size: 14px; line-height: 1.9; }
.bundle-notes strong { color: var(--ink); margin-right: 12px; font-weight: 650; }
.bundle-notes a { display: inline-block; padding-block: 4px; margin-block: -4px; text-decoration: underline; text-underline-offset: 3px; }

/* The live price and application stay in one surface with the required terms. */
.course-section { background: var(--ink); }
.course-section .section-heading h2 { color: #fff; }
.course-section .section-label { color: var(--accent); }
.course-section .section-heading > p:last-child { color: #c6d3e0; }
.course-tabs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin: 40px 0 24px; }
.course-tabs > button { position: relative; display: flex; flex-direction: column; align-items: flex-start; text-align: left; min-width: 0; padding: 24px; border: 2px solid transparent; border-radius: 14px; background: #e8eef4; color: var(--ink); }
.course-tabs > button[aria-selected=true] { border-color: var(--accent); background: #fff; }
.course-tabs > button:hover { background: #fff; }
.choice-top { display: flex; gap: 10px; min-height: 22px; align-items: center; font-size: 12px; color: var(--body); }
.choice-top > span:first-child { display: none; }
.choice-top i { position: absolute; top: 27px; right: 24px; width: 18px; height: 18px; border: 1px solid #7b8794; border-radius: 50%; }
[aria-selected=true] .choice-top i { background: var(--ink); border-color: var(--ink); box-shadow: inset 0 0 0 4px #fff; }
.choice-name { margin-top: 8px; font-size: 24px; font-weight: 750; letter-spacing: -.045em; }
.choice-intro { margin-top: 4px; color: var(--body); font-size: 14px; }
.choice-price { margin-top: 18px; font-size: 28px; font-weight: 750; line-height: 1.4; letter-spacing: -.04em; }
.choice-price small { font-size: 15px; font-weight: 500; margin-left: 1px; }
.purchase-summary { overflow: clip; background: #fff; border-radius: var(--radius); }
#course-panel { display: grid; grid-template-columns: 150px minmax(0, 1fr) 285px; gap: 32px; align-items: center; padding: 40px; }
.course-visual { display: flex; justify-content: center; align-items: center; }
#selected-cover { width: auto; max-width: 100%; height: auto; max-height: 200px; object-fit: contain; box-shadow: 5px 9px 16px #14263d1c; }
.course-info h3 { font-size: 30px; font-weight: 780; }
.course-intro { margin-top: 12px; color: var(--body); font-size: 15px; }
.course-specs { display: grid; gap: 12px; margin-top: 24px; font-size: 14px; }
.course-specs > div { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 14px; }
.course-specs dt { color: var(--body); }
.course-specs dd { color: var(--ink); }
.course-action { border-left: 1px solid var(--line); padding-left: 32px; }
.course-price > span { display: block; color: var(--body); font-size: 14px; font-weight: 600; }
.course-price > strong { display: block; margin-top: 8px; color: var(--ink); font-size: 46px; font-weight: 800; line-height: 1.2; letter-spacing: -.05em; font-variant-numeric: tabular-nums; white-space: nowrap; }
.course-price small { font-size: 19px; font-weight: 600; margin-left: 1px; letter-spacing: 0; }
.apply-button { width: 100%; justify-content: space-between; margin-top: 24px; padding-inline: 20px; }
.course-action .button.primary { background: var(--accent); color: var(--ink); }
.course-action .button.primary:hover { background: #f6b58f; }
.course-action .button:disabled, .course-action .button:disabled:hover { background: #e8ecef; color: #536171; }
.apply-button:disabled .icon { display: none; }
.member-notice { margin-top: 12px; color: var(--body); font-size: 13px; line-height: 1.8; }
#payment-note { margin-top: 6px; }
.course-action .detail-link { margin-top: 8px; font-size: 13px; }
.purchase-conditions { padding: 28px 40px 32px; border-top: 1px solid var(--line); background: #f2f5f8; }
.purchase-conditions-heading { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 18px; }
.purchase-conditions h3 { font-size: 20px; }
.purchase-conditions ul { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 32px; margin: 0; padding: 0; list-style: none; color: var(--body); font-size: 13px; line-height: 1.9; }
.purchase-conditions li { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 12px; }
.purchase-conditions strong { color: var(--ink); font-weight: 650; }
.purchase-conditions li a { display: inline-block; text-decoration: underline; text-underline-offset: 3px; padding-block: 3px; }
noscript p { margin-top: 20px; color: #e1eaf2; font-size: 14px; }

/* Study details remain visible and readable instead of a rotating carousel. */
.learning-section { background: #eef3f7; }
.learning-layout { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 80px; }
.learning-steps article { display: grid; grid-template-columns: 108px minmax(0, 1fr); gap: 32px; padding-block: 28px; border-bottom: 1px solid #cbd6df; }
.learning-steps article:first-child { padding-top: 0; }
.step-label { font-size: 30px; font-weight: 750; color: #536e87; line-height: 1.3; }
.step-label span { display: block; margin-top: 8px; font-size: 13px; font-weight: 600; }
.learning-steps h3 { font-size: 24px; }
.learning-steps p { margin-top: 12px; color: var(--body); font-size: 15px; line-height: 1.85; }
.learning-steps p.learning-note { font-size: 13px; }
.goal-section { margin-top: 28px; padding: 24px 28px; background: #fff; border-radius: 14px; }
.goal-main { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.goal-main h3 { font-size: 18px; }
.goal-main p { margin-top: 6px; font-size: 13px; color: var(--body); }
.goal-main .detail-link { flex: none; font-size: 13px; }
.goal-details { border-top: 1px solid var(--line); margin-top: 18px; padding-top: 8px; }
summary { cursor: pointer; list-style: none; }
summary::-webkit-details-marker { display: none; }
.goal-details summary { display: flex; align-items: center; justify-content: space-between; gap: 14px; min-height: 44px; font-size: 13px; color: var(--body); }
.goal-details > div { padding: 6px 0 12px; font-size: 13px; color: var(--body); }
.goal-details p + p { margin-top: 10px; }
details[open] > summary .icon { transform: rotate(45deg); }
.ot-section { padding-block: 80px; }
.instructor-intro { display: grid; grid-template-columns: 260px minmax(0, 1fr); column-gap: 80px; max-width: 920px; align-items: center; }
.instructor-portrait { grid-column: 1; grid-row: 1 / 3; width: 260px; height: 340px; object-fit: cover; object-position: top; border-radius: 140px 140px 20px 20px; background: var(--surface); }
.instructor-heading { align-self: end; padding-bottom: 18px; }
.instructor-heading h2 { font-size: 40px; }
.instructor-bio { align-self: start; }
.instructor-message { color: var(--body); font-size: 16px; line-height: 1.9; max-width: 44ch; }
.instructor-career { padding: 0; margin: 24px 0 0; list-style: none; font-size: 14px; color: var(--body); line-height: 2; }
.instructor-career li:first-child { color: var(--ink); font-weight: 700; }

/* Required purchase information and native keyboard-friendly disclosures. */
.conditions-section { background: #f5f7f9; }
.conditions-grid { display: grid; grid-template-columns: 360px minmax(0, 1fr); gap: 56px; margin-top: 48px; align-items: start; }
.required-checks { padding: 28px; background: #e8eef4; border-radius: 14px; }
.required-checks h3, .faqs > h3 { font-size: 21px; margin-bottom: 16px; }
.fixed-notes > div + div { margin-top: 20px; }
.fixed-notes dt { font-size: 13px; color: var(--ink); font-weight: 700; }
.fixed-notes dd { margin-top: 6px; color: var(--body); font-size: 14px; line-height: 1.85; }
.refund-note { border-top: 1px solid #c7d3de; padding-top: 12px; margin-top: 24px; }
.refund-pending { font-size: 13px; line-height: 1.85; color: var(--body); }
.faqs details { border-bottom: 1px solid #cbd6df; }
.faqs summary { min-height: 66px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 18px 0; font-size: 16px; font-weight: 600; }
.faqs summary .icon { width: 18px; height: 18px; color: var(--body); }
.faqs details > p { padding: 0 36px 22px 0; color: var(--body); font-size: 14px; line-height: 1.9; }
.closing { background: #e4edf4; padding-block: 64px; }
.closing .container { display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.closing h2 { font-size: 34px; }
#closing-selection { color: var(--body); margin-top: 12px; font-size: 15px; }
#closing-action { flex: none; }
.closing small { font-size: inherit; }
.footer { display: flex; flex-wrap: wrap; align-items: center; gap: 22px; padding-block: 40px 120px; color: var(--body); font-size: 13px; }
.brand-home { display: inline-flex; align-items: center; min-height: 44px; }
.brand-home img { width: 120px; }
#replay { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; margin-left: auto; color: var(--ink); }
#replay .icon { transform: rotate(-90deg); width: 16px; height: 16px; }
.company-info { flex-basis: 100%; font-size: 12px; line-height: 1.9; }
.company-info nav { display: flex; flex-wrap: wrap; gap: 8px 24px; margin-bottom: 16px; }
.company-info nav a { display: inline-flex; min-height: 32px; align-items: center; }
.company-info p a { display: inline-block; padding-block: 4px; margin-block: -4px; }
.mobile-dock { display: flex; position: fixed; z-index: 30; inset: auto 0 0; align-items: center; justify-content: space-between; gap: 24px; padding: 12px max(var(--gutter), calc((100vw - var(--content-max)) / 2)); padding-bottom: max(12px, env(safe-area-inset-bottom)); border-top: 1px solid var(--line); background: #fff; }
#dock-selection { min-width: 0; font-size: 14px; line-height: 1.5; }
#dock-selection .nowrap { font-size: 17px; font-weight: 700; color: var(--ink); }
#dock-action { display: inline-flex; align-items: center; justify-content: center; gap: 18px; min-height: 46px; flex: none; padding: 10px 24px; border-radius: 10px; background: var(--ink); color: #fff; font-size: 15px; font-weight: 650; }
#dock-action:hover { background: #29475d; }
dialog { width: min(520px, calc(100vw - 32px)); max-height: calc(100svh - 48px); overflow: auto; padding: 32px; border: 1px solid var(--line); border-radius: 20px; background: #fff; color: var(--ink); }
dialog::backdrop { background: #14263d99; }
.round-button { width: 44px; height: 44px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--line); border-radius: 50%; background: #fff; color: var(--ink); }
.dialog-close { position: absolute; top: 16px; right: 16px; }
.dialog-eyebrow { color: var(--body); font-size: 13px; margin-bottom: 14px; padding-right: 36px; }
dialog h2 { font-size: 26px; padding-right: 24px; }
#dialog-body { margin-block: 20px 24px; color: var(--body); font-size: 15px; }
#dialog-body p + p { margin-top: 12px; }

@media (max-width: 1023px) {
  .nav { gap: 18px; }
  .nav-sections { gap: 18px; }
  .nav-sections a { font-size: 13px; }
  .brand img { width: 122px; }
  .account-links { gap: 12px; }
  #fan-sticky { padding-top: 40px; }
  #fan-stage { max-width: 700px; }
  .section-pad { padding-block: 80px; }
  .bundle-piece { padding-inline: 22px; }
  .bundle-art { height: 220px; }
  .bundle-textbook img, .bundle-subnote img { height: 178px; }
  #course-panel { grid-template-columns: 100px minmax(0, 1fr) 245px; padding: 30px; gap: 24px; }
  .course-action { padding-left: 24px; }
  .course-info h3 { font-size: 26px; }
  .course-specs > div { grid-template-columns: 1fr; gap: 2px; }
  .course-price > strong { font-size: 40px; }
  .purchase-conditions { padding: 24px 30px 28px; }
  .learning-layout { grid-template-columns: 220px minmax(0, 1fr); gap: 40px; }
  .learning-steps article { grid-template-columns: 68px minmax(0, 1fr); gap: 20px; }
  .learning-steps h3 { font-size: 22px; }
  .goal-main { display: block; }
  .goal-main .detail-link { margin-top: 8px; }
  .instructor-intro { column-gap: 48px; }
  .conditions-grid { grid-template-columns: 300px minmax(0, 1fr); gap: 32px; }
  .closing h2 { font-size: 29px; }
}
@media (max-width: 767px) {
  :root { --nav-height: 108px; --fs-section-h2: clamp(29px, 5vw, 36px); }
  .nav { min-height: 0; gap: 0; flex-wrap: wrap; padding-block: 7px 0; }
  .brand { order: 0; }
  .brand img { width: 112px; }
  .account-links { order: 1; margin-left: auto; }
  .account-links a { font-size: 12px; }
  .nav-sections { order: 2; justify-content: space-between; gap: 10px; width: 100%; border-top: 1px solid #14263d0d; margin-top: 4px; }
  .nav-sections a { min-height: 44px; font-size: 12px; }
  #fan-sticky { padding: 34px 0 32px; }
  .eyebrow { font-size: 12px; }
  h1 { font-size: clamp(38px, 8vw, 56px); line-height: 1.15; margin-top: 14px; }
  .hero-description { font-size: 14px; margin-top: 16px; }
  .hero-availability { font-size: 12px; margin-top: 12px; }
  #fan-stage { max-width: 470px; margin-top: 24px; padding: 12px 2px 0; }
  #fan-canvas { grid-template-columns: 1.45fr 1fr 1fr; gap: 12px; }
  #fan-stage::before { height: 70px; bottom: 34px; left: 0; right: 0; }
  .device { padding: 8px 4px 4px; border-width: 1px; border-radius: 6px; }
  .device img { border-radius: 2px; }
  .camera { top: 3px; width: 2px; height: 2px; }
  .book { width: 89%; }
  .book::after { border-left-width: 2px; }
  .fan-item figcaption { margin-top: 18px; font-size: 11px; }
  .stage-footer { margin-top: 24px; }
  .stage-footer .button { min-height: 52px; width: min(100%, 300px); font-size: 15px; }
  .hero-art-note { max-width: 290px; margin: 14px auto 0; font-size: 11px; line-height: 1.7; }
  .package-strip { padding-block: 16px; }
  .package-strip .container { gap: 12px 22px; flex-wrap: wrap; }
  .package-strip span { font-size: 12px; gap: 6px; }
  .package-strip .icon { width: 15px; height: 15px; }
  .section-pad { padding-block: 64px; }
  .section-label { font-size: 12px; margin-bottom: 12px; }
  .section-heading > p:last-child { font-size: 14px; margin-top: 16px; }
  .bundle-stack { grid-template-columns: 1fr; gap: 14px; margin-top: 30px; }
  .bundle-piece { display: grid; grid-template-columns: minmax(0, 1fr) 44%; align-items: center; gap: 16px; padding: 24px; border-radius: 14px; }
  .bundle-copy strong { font-size: 21px; }
  .piece-number { font-size: 12px; margin-bottom: 8px; }
  .bundle-copy p { font-size: 13px; margin-top: 8px; }
  .bundle-copy p br { display: none; }
  .bundle-art { height: 168px; padding-top: 0; }
  .bundle-textbook img, .bundle-subnote img { height: 150px; }
  .bundle-lecture img { border-width: 4px; border-radius: 6px; }
  .bundle-notes { text-align: left; font-size: 12px; margin-top: 22px; }
  .bundle-notes p + p { margin-top: 10px; }
  .bundle-notes strong { display: block; margin-bottom: 4px; }
  .course-tabs { gap: 8px; margin: 30px 0 16px; }
  .course-tabs > button { padding: 14px 10px; border-radius: 10px; }
  .choice-top { min-height: 18px; font-size: 11px; }
  .choice-top i { display: none; }
  .choice-name { font-size: 16px; margin-top: 4px; line-height: 1.45; }
  .choice-intro { display: none; }
  .choice-price { font-size: 18px; margin-top: 12px; }
  .choice-price small { font-size: 11px; }
  .purchase-summary { border-radius: 14px; }
  #course-panel { display: block; padding: 26px 24px; }
  .course-visual { display: none; }
  .course-info h3 { font-size: 27px; }
  .course-intro { font-size: 14px; margin-top: 8px; }
  .course-specs { font-size: 13px; gap: 12px; margin-top: 22px; }
  .course-specs > div { grid-template-columns: 62px minmax(0, 1fr); gap: 10px; }
  .course-action { border-left: 0; border-top: 1px solid var(--line); padding: 22px 0 0; margin-top: 24px; }
  .course-price { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
  .course-price > span { font-size: 13px; }
  .course-price > strong { font-size: 38px; margin: 0; }
  .course-price small { font-size: 16px; }
  .apply-button { margin-top: 20px; min-height: 54px; }
  .member-notice { font-size: 12px; }
  .purchase-conditions { padding: 22px 24px 26px; }
  .purchase-conditions-heading { display: block; margin-bottom: 14px; }
  .purchase-conditions h3 { font-size: 18px; }
  .purchase-conditions-heading .detail-link { margin-top: 2px; font-size: 12px; min-height: 36px; }
  .purchase-conditions ul { grid-template-columns: 1fr; gap: 12px; font-size: 12px; }
  .purchase-conditions li { grid-template-columns: 58px minmax(0, 1fr); gap: 10px; }
  .learning-layout { display: block; }
  .learning-layout .section-heading { margin-bottom: 32px; }
  .learning-steps article { padding-block: 24px; gap: 20px; grid-template-columns: 64px minmax(0, 1fr); }
  .step-label { font-size: 26px; }
  .step-label span { font-size: 12px; }
  .learning-steps h3 { font-size: 20px; }
  .learning-steps p { font-size: 14px; margin-top: 10px; }
  .learning-steps p.learning-note { font-size: 12px; }
  .goal-section { padding: 22px; }
  .ot-section { padding-block: 56px; }
  .instructor-intro { grid-template-columns: 112px minmax(0, 1fr); gap: 24px; }
  .instructor-portrait { width: 112px; height: 164px; grid-row: 1; border-radius: 60px 60px 14px 14px; }
  .instructor-heading { padding: 0; align-self: center; }
  .instructor-heading h2 { font-size: 28px; }
  .instructor-bio { grid-column: 1 / -1; }
  .instructor-message { max-width: none; font-size: 14px; }
  .instructor-career { margin-top: 18px; font-size: 13px; }
  .conditions-grid { grid-template-columns: 1fr; gap: 36px; margin-top: 32px; }
  .required-checks { padding: 24px; }
  .required-checks h3, .faqs > h3 { font-size: 20px; }
  .fixed-notes dd { font-size: 13px; }
  .faqs summary { font-size: 14px; min-height: 62px; }
  .faqs details > p { font-size: 13px; padding-right: 0; }
  .closing { padding-block: 44px; }
  .closing .container { display: block; }
  .closing h2 { font-size: 28px; }
  #closing-selection { font-size: 14px; }
  #closing-action { width: 100%; margin-top: 24px; font-size: 15px; }
  .footer { font-size: 12px; gap: 12px; padding-bottom: calc(120px + env(safe-area-inset-bottom)); }
  .footer > span { flex-basis: 100%; order: 2; }
  .company-info { order: 3; font-size: 11px; }
  .company-info nav { gap: 4px 16px; margin-bottom: 12px; }
  .mobile-dock { padding-inline: var(--gutter); gap: 12px; }
  #dock-selection { font-size: 12px; max-width: 165px; }
  #dock-action { padding-inline: 18px; font-size: 14px; gap: 10px; }
  #dock-action .icon { width: 16px; height: 16px; }
  dialog { padding: 28px 24px; }
}
@media (max-width: 359px) {
  h1 { font-size: 36px; }
  .hero-description { font-size: 13px; }
  #fan-canvas { gap: 9px; }
  .fan-item figcaption { font-size: 10px; }
  .bundle-piece { padding: 20px 18px; gap: 12px; }
  .bundle-copy strong { font-size: 19px; }
  .bundle-art { height: 146px; }
  .bundle-textbook img, .bundle-subnote img { height: 132px; }
  .choice-name { font-size: 14px; }
  .choice-price { font-size: 16px; }
  .course-tabs > button { padding-inline: 8px; }
  #course-panel { padding-inline: 20px; }
  .course-price > strong { font-size: 34px; }
  .purchase-conditions { padding-inline: 20px; }
  #dock-action { padding-inline: 14px; font-size: 13px; }
  #dock-selection { max-width: 135px; font-size: 11px; }
  .mobile-dock { padding-inline: 16px; gap: 10px; }
  .learning-steps article { grid-template-columns: 54px minmax(0, 1fr); gap: 16px; }
  .learning-steps h3 { font-size: 19px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}