.variant-b {
  --page-bg: #151513;
  --surface: #211f1b;
  --surface-soft: #2a2823;
  --text: #f5f1e8;
  --muted: #c4beb2;
  --line: #454139;
  --accent: #d8b550;
  --accent-contrast: #151513;
  --header-bg: #151513;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.34);
  counter-reset: scene;
}

.variant-b .site-header {
  border-bottom-color: #3b3832;
  background: #151513;
  color: #f5f1e8;
}

.variant-b .brand > span {
  border-color: #d8b550;
  color: #d8b550;
}

.variant-b .scene {
  counter-increment: scene;
  isolation: isolate;
  min-height: min(920px, calc(100vh - 68px));
  display: grid;
  align-items: center;
  overflow: hidden;
}

.variant-b .scene::before {
  position: absolute;
  top: 28px;
  right: max(18px, calc((100vw - 1180px) / 2));
  z-index: -1;
  color: currentColor;
  content: counter(scene, decimal-leading-zero);
  font-size: clamp(5.5rem, 15vw, 13rem);
  font-weight: 900;
  letter-spacing: -0.08em;
  line-height: 1;
  opacity: 0.055;
}

.variant-b .scene:nth-of-type(odd) {
  background: #151513;
  color: #f5f1e8;
  --page-bg: #151513;
  --surface: #211f1b;
  --surface-soft: #2a2823;
  --text: #f5f1e8;
  --muted: #c4beb2;
  --line: #454139;
  --accent: #d8b550;
  --accent-contrast: #151513;
}

.variant-b .scene:nth-of-type(even) {
  background: #f5f0e7;
  color: #1c1a17;
  --page-bg: #f5f0e7;
  --surface: #fffdf8;
  --surface-soft: #e6dfd2;
  --text: #1c1a17;
  --muted: #5a554d;
  --line: #c9c0b1;
  --accent: #9b2d24;
  --accent-contrast: #ffffff;
}

.variant-b .scene-layout {
  grid-template-columns: minmax(0, 1.12fr) minmax(340px, 0.88fr);
  gap: clamp(54px, 8vw, 118px);
}

.variant-b .scene-label {
  margin-bottom: 24px;
  font-size: 0.74rem;
}

.variant-b .scene h1,
.variant-b .scene h2 {
  max-width: 10em;
}

.variant-b .section-heading h2 {
  max-width: 12em;
}

.variant-b .scene-hero {
  min-height: calc(100vh - 68px);
  background:
    linear-gradient(115deg, #151513 0 48%, rgba(21, 21, 19, 0.84) 67%, #151513 100%),
    radial-gradient(circle at 75% 45%, rgba(216, 181, 80, 0.24), transparent 40%);
}

.variant-b .scene-hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, #d8b550, transparent);
  content: "";
}

.variant-b .scene-hero h1 {
  max-width: 11em;
  font-size: clamp(2.25rem, 4vw, 3.35rem);
}

.variant-b .scene-hero .scene-layout {
  grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  gap: clamp(38px, 5vw, 72px);
}

.variant-b .hero-visual {
  position: relative;
  padding: 8px;
  border: 1px solid #6d5b2a;
  background: #0c0c0b;
  box-shadow: 34px 34px 0 rgba(216, 181, 80, 0.12);
}

.variant-b .hero-visual::after {
  position: absolute;
  right: 8px;
  bottom: 52px;
  left: 8px;
  padding: 16px 22px;
  background: rgba(12, 12, 11, 0.9);
  color: #f5f1e8;
  content: "시장부터 종목까지, 같은 순서로 확인합니다.";
  font-weight: 800;
}

.variant-b .scene-visual img {
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.variant-b .portrait-visual,
.variant-b .book-visual {
  width: min(100%, 600px);
}

.variant-b #instructor-intro .portrait-visual img,
.variant-b #book-proof .book-visual img {
  border: 8px solid var(--surface);
}

.variant-b .credential-grid {
  border-top-color: #d8b550;
  box-shadow: var(--shadow);
}

.variant-b .credential-grid div {
  background: var(--surface);
}

.variant-b #book-proof .scene-copy {
  padding: clamp(28px, 5vw, 64px);
  border-left: 1px solid var(--line);
}

.variant-b .media-grid {
  grid-template-columns: 1.18fr 0.91fr 0.91fr;
  align-items: start;
}

.variant-b .media-card {
  border: 0;
  border-bottom: 3px solid var(--accent);
  background: var(--surface);
  box-shadow: var(--shadow);
  transition: border-color 180ms ease, background-color 180ms ease;
}

.variant-b .media-card:hover {
  border-bottom-color: #ffffff;
  background: var(--surface-soft);
}

.variant-b #content-bridge .step-grid li {
  min-height: 230px;
  border: 0;
  border-top: 4px solid #9b2d24;
  box-shadow: 0 18px 44px rgba(46, 35, 25, 0.1);
}

.variant-b .cohort-grid {
  grid-template-columns: 1.25fr 0.75fr 0.75fr;
}

.variant-b .cohort-grid figure:first-child {
  grid-row: span 2;
}

.variant-b .cohort-grid figure:first-child img {
  height: calc(100% - 40px);
}

.variant-b .cohort-grid figure:nth-child(4) {
  grid-column: 2 / 4;
}

.variant-b .review-fill-photo {
  display: none;
}

.variant-b .quote-grid blockquote {
  border: 0;
  border-left: 2px solid #d8b550;
  background: transparent;
}

.variant-b .signal-panel {
  border: 0;
  border-top: 6px solid #9b2d24;
  box-shadow: 24px 24px 0 #d8d0c2;
}

.variant-b #market-overview .market-flow {
  transform: rotate(-1deg);
  box-shadow: 26px 26px 0 rgba(216, 181, 80, 0.1);
}

.variant-b .method-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
}

.variant-b .method-grid li {
  min-height: 280px;
  border-color: #454139;
  background: transparent;
}

.variant-b .method-grid li:nth-child(3) {
  background: #d8b550;
  color: #151513;
}

.variant-b .method-grid li:nth-child(3) > span,
.variant-b .method-grid li:nth-child(3) p {
  color: #151513;
}

.variant-b .method-principles {
  padding-top: clamp(46px, 6vw, 72px);
  border-top: 1px solid #6d5b2a;
  --principle-chart-bg: #0d0d0c;
  --principle-grid: rgba(245, 241, 232, 0.1);
  --principle-baseline: #d8b550;
  --principle-candle-up: #e5dfd3;
  --principle-warning: #9f3932;
}

.variant-b .method-principles-heading {
  max-width: 900px;
  padding-left: clamp(22px, 4vw, 48px);
  border-left: 2px solid #d8b550;
}

.variant-b .method-principles-heading h3 {
  max-width: 15em;
}

.variant-b .method-principle-grid {
  gap: 0;
  border: 1px solid #514b40;
  background: #514b40;
}

.variant-b .method-principle-grid li {
  position: relative;
  min-height: 390px;
  border-right: 1px solid #514b40;
  border-bottom: 1px solid #514b40;
  background: #1b1a17;
  color: #f5f1e8;
}

.variant-b .method-principle-grid li:nth-child(2n) {
  border-right: 0;
}

.variant-b .method-principle-grid li:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.variant-b .principle-copy {
  min-height: 0;
  padding: clamp(18px, 2vw, 24px);
  border-top: 1px solid #39362f;
}

.variant-b .principle-copy > span {
  color: #d8b550;
  margin-bottom: 10px;
}

.variant-b .principle-copy h4 {
  margin-bottom: 8px;
}

.variant-b .principle-copy p {
  color: #c4beb2;
}

.variant-b .principle-chart--distance,
.variant-b .principle-chart--exit {
  --principle-warning: #c84a41;
  --principle-warning-halo: rgba(200, 74, 65, 0.22);
  --principle-warning-ring: rgba(200, 74, 65, 0.58);
}

.variant-b .method-principle-grid li:nth-child(3) .principle-copy > span,
.variant-b .method-principle-grid li:nth-child(4) .principle-copy > span {
  color: #c84a41;
}

.variant-b .scenario-grid li {
  min-height: 260px;
  border: 0;
  border-top: 2px solid #9b2d24;
  box-shadow: 0 20px 48px rgba(42, 31, 22, 0.1);
}

.variant-b #one-to-one .scene-visual img {
  aspect-ratio: 4 / 5;
}

.variant-b .support-photos {
  grid-template-columns: 1.35fr 0.65fr;
}

.variant-b .support-photos figure:first-child {
  grid-row: span 2;
}

.variant-b .support-photos figure:first-child img {
  min-height: 540px;
}

.variant-b .support-fill-photo {
  grid-column: 2;
  grid-row: 2;
}

.variant-b .support-fill-photo img {
  height: calc(100% - 40px);
  object-fit: cover;
}

.variant-b .support-grid {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: transparent;
}

.variant-b .support-grid li {
  min-height: 180px;
  background: transparent;
}

.variant-b .course-scene {
  min-height: 900px;
}

.variant-b .course-scene .scene-copy {
  align-self: center;
}

.variant-b .course-scene .course-price strong {
  color: var(--accent);
  font-size: clamp(2rem, 4.5vw, 3.6rem);
}

.variant-b .curriculum {
  padding: 8px 32px 18px;
  border: 1px solid var(--line);
  border-top: 8px solid var(--accent);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.variant-b .comparison-card {
  border: 0;
  border-top: 8px solid #d8b550;
  background: #211f1b;
  box-shadow: 28px 28px 0 rgba(216, 181, 80, 0.13);
}

.variant-b .comparison-card > div strong,
.variant-b .comparison-card > p strong {
  color: #d8b550;
}

.variant-b .fit-grid article {
  border: 0;
  border-top: 5px solid #9b2d24;
  box-shadow: 0 18px 46px rgba(46, 35, 25, 0.1);
}

.variant-b .fit-grid article:first-child {
  border-top-color: #315b54;
}

.variant-b .faq-list details[open] {
  padding-inline: 24px;
  background: var(--surface);
}

.variant-b .final-scene {
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 30%, rgba(216, 181, 80, 0.12), transparent 32%),
    #151513;
}

.variant-b .final-scene .consult-card {
  border: 1px solid #6d5b2a;
  border-top: 10px solid #d8b550;
  box-shadow: 28px 28px 0 rgba(216, 181, 80, 0.12);
}

.variant-b .site-footer {
  border-color: #3b3832;
  background: #0d0d0c;
  color: #a9a398;
}

@media (max-width: 900px) {
  .variant-b .scene {
    min-height: auto;
  }

  .variant-b .scene-layout,
  .variant-b .scene-hero .scene-layout {
    grid-template-columns: 1fr;
  }

  .variant-b .media-grid,
  .variant-b .cohort-grid,
  .variant-b .support-photos {
    grid-template-columns: 1fr 1fr;
  }

  .variant-b .media-card:first-child,
  .variant-b .cohort-grid figure:first-child,
  .variant-b .cohort-grid figure:nth-child(4) {
    grid-column: 1 / -1;
    grid-row: auto;
  }

  .variant-b .cohort-grid figure:first-child img,
  .variant-b .support-photos figure:first-child img {
    height: auto;
    min-height: 0;
  }

  .variant-b .method-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .variant-b .method-principle-grid {
    gap: 1px;
  }

  .variant-b .method-principle-grid li {
    border: 0;
  }
}

@media (max-width: 680px) {
  .variant-b .scene::before {
    top: 18px;
    right: 16px;
    font-size: 5.5rem;
  }

  .variant-b .scene-hero h1 {
    max-width: none;
  }

  .variant-b .hero-visual,
  .variant-b .comparison-card,
  .variant-b .final-scene .consult-card {
    box-shadow: 9px 9px 0 rgba(216, 181, 80, 0.14);
  }

  .variant-b .media-grid,
  .variant-b .cohort-grid,
  .variant-b .support-photos,
  .variant-b .method-grid {
    grid-template-columns: 1fr;
  }

  .variant-b .support-photos figure:first-child,
  .variant-b .support-fill-photo {
    grid-column: auto;
    grid-row: auto;
  }

  .variant-b .support-fill-photo img {
    height: auto;
  }

  .variant-b .method-grid li,
  .variant-b .scenario-grid li,
  .variant-b .support-grid li {
    min-height: auto;
  }

  .variant-b .method-principle-grid {
    gap: 1px;
  }

  .variant-b .method-principle-grid li,
  .variant-b .principle-copy {
    min-height: 0;
    border: 0;
  }

  .variant-b .hero-visual::after {
    position: static;
    display: block;
    padding: 14px;
  }
}

/* V5: 판단법을 배우고, 혼자 두지 않는 실행 흐름 */
.v5 .v5-hero {
  min-height: calc(100svh - 68px);
  padding: clamp(42px, 7vh, 72px) 0;
  background:
    linear-gradient(180deg, rgba(216, 181, 80, 0.035), transparent 36%),
    #10100f;
}

.v5 .v5-hero::before {
  content: none;
}

.v5 .v5-hero-layout {
  display: grid;
  justify-items: center;
}

.v5 .v5-hero-copy {
  width: min(100%, 1060px);
  text-align: center;
}

.v5 .v5-hero .scene-label {
  margin-bottom: clamp(16px, 2.4vh, 26px);
}

.v5 .v5-hero-kicker {
  margin-bottom: clamp(18px, 2.6vh, 28px);
  color: #d8b550;
  font-size: clamp(0.9rem, 1.5vw, 1.15rem);
  font-weight: 900;
  letter-spacing: 0.08em;
}

.v5 .v5-hero h1 {
  max-width: none;
  margin: 0 auto clamp(20px, 3vh, 32px);
  color: #f9f6ef;
  font-size: clamp(2.55rem, min(6.2vw, 8.8vh), 5.45rem);
  line-height: 1.08;
  letter-spacing: -0.055em;
  text-wrap: balance;
}

.v5 .v5-hero h1 em {
  color: #dfb541;
}

.v5 .v5-hero-declaration {
  display: grid;
  gap: 8px;
  margin: 0 auto clamp(16px, 2.4vh, 26px);
  color: #c9c3b7;
  font-size: clamp(0.95rem, 1.6vw, 1.18rem);
  line-height: 1.7;
}

.v5 .v5-hero-declaration strong {
  color: #f5f1e8;
  font-size: 1.06em;
}

.v5 .v5-hero .hero-scope-note {
  max-width: 78ch;
  margin: 0 auto clamp(18px, 2.8vh, 30px);
  padding: 0;
  border: 0;
  color: #9f9a90;
  font-size: clamp(0.76rem, 1.2vw, 0.9rem);
  line-height: 1.7;
}

.v5 .v5-hero .hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.v5 .v5-hero .hero-start-cta,
.v5 .v5-hero .hero-phone-cta {
  min-width: min(100%, 220px);
}

.v5 .v5-hero .hero-phone-cta {
  border-color: #d8b550;
  background: transparent;
  color: #d8b550;
}

.v5 .v5-hero .hero-phone-cta:hover {
  background: #d8b550;
  color: #10100f;
}

.v5 .v5-hero .hero-phone-reveal {
  margin: 12px auto 0;
  color: #d8b550;
  font-size: 0.95rem;
  font-weight: 800;
}

.v5 .v5-hero .hero-phone-reveal[hidden] {
  display: none;
}

.v5 .v5-hero .hero-phone-reveal .copy-note {
  display: none;
  margin-left: 8px;
  color: #aaa398;
  font-size: 0.78rem;
  font-weight: 400;
}

.v5 .v5-hero .hero-phone-reveal.is-copied .copy-note {
  display: inline;
}

.v5 .v5-hero .fact-list {
  width: min(100%, 760px);
  margin: clamp(22px, 3.5vh, 38px) auto 0;
  border-top-color: #6d5b2a;
}

.v5 .v5-hero .fact-list li {
  border-bottom-color: #3f392b;
}

.v5 .v5-hero .fact-list strong {
  color: #d8b550;
  font-size: 0.85rem;
}

.v5 .v5-hero .fact-list span {
  color: #aaa398;
}

.v5 .quote-grid cite {
  display: grid;
  gap: 3px;
  margin-top: 20px;
  font-style: normal;
}

.v5 .review-author {
  color: var(--text);
  font-weight: 800;
}

.v5 .review-source {
  color: var(--muted);
  font-size: 0.72rem;
}

.v5 .v5-problem-scene {
  background:
    linear-gradient(135deg, rgba(155, 45, 36, 0.055), transparent 45%),
    #f5f0e7;
}

.v5 .v5-problem-heading {
  margin-bottom: clamp(32px, 5vw, 58px);
}

.v5 .problem-contrast {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid #bdb2a2;
  border-bottom: 1px solid #bdb2a2;
}

.v5 .problem-contrast article {
  display: grid;
  min-height: 210px;
  align-content: space-between;
  gap: 26px;
  padding: clamp(24px, 3vw, 38px);
  border-right: 1px solid #bdb2a2;
}

.v5 .problem-contrast article:last-child {
  border-right: 0;
}

.v5 .problem-contrast span {
  color: #6d665d;
  font-size: 0.86rem;
}

.v5 .problem-contrast strong {
  max-width: 9em;
  color: #9b2d24;
  font-size: clamp(1.35rem, 2.2vw, 2rem);
  line-height: 1.2;
  letter-spacing: -0.04em;
}

.v5 .problem-resolution {
  max-width: 760px;
  margin: clamp(28px, 4vw, 48px) 0 0 auto;
  color: #5a554d;
  font-size: clamp(1rem, 1.7vw, 1.25rem);
  line-height: 1.75;
  text-align: right;
}

.v5 .problem-resolution strong {
  color: #1c1a17;
}

.v5 #market-overview .market-flow {
  transform: none;
  border: 1px solid #514b40;
  background: #514b40;
  box-shadow: 24px 24px 0 rgba(216, 181, 80, 0.11);
}

.v5 #market-overview .market-flow li {
  display: grid;
  min-height: 148px;
  align-content: center;
  gap: 7px;
  background: #1c1b18;
}

.v5 #market-overview .market-flow li + li {
  position: relative;
}

.v5 #market-overview .market-flow li + li::before {
  position: absolute;
  top: 50%;
  left: -9px;
  z-index: 1;
  width: 18px;
  height: 18px;
  border-top: 1px solid #d8b550;
  border-right: 1px solid #d8b550;
  background: #1c1b18;
  content: "";
  transform: translateY(-50%) rotate(45deg);
}

.v5 #market-overview .market-flow strong {
  font-size: clamp(1rem, 1.7vw, 1.25rem);
}

.v5 #market-overview .market-flow small {
  color: #a9a398;
  font-size: 0.7rem;
  font-weight: 500;
  line-height: 1.45;
}

.v5 [data-chapter="guided-practice"] > .shell {
  position: relative;
}

.v5 [data-chapter="guided-practice"] > .shell::before {
  position: absolute;
  top: -42px;
  left: 0;
  color: var(--accent);
  content: "GUIDED PRACTICE";
  font-size: 0.62rem;
  font-weight: 900;
  letter-spacing: 0.18em;
}

.v5 #market-selection {
  background:
    linear-gradient(120deg, rgba(155, 45, 36, 0.06), transparent 38%),
    #f5f0e7;
}

.v5 .service-screen-scene {
  min-height: auto;
  padding: clamp(76px, 7vw, 108px) 0;
}

.v5 .service-scene-layout {
  display: grid;
  min-width: 0;
  gap: clamp(26px, 3.5vw, 44px);
}

.v5 .service-scene-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
  align-items: end;
  gap: clamp(38px, 6vw, 84px);
  padding-bottom: clamp(24px, 3vw, 36px);
  border-bottom: 1px solid var(--line);
}

.v5 .service-scene-heading .scene-copy {
  min-width: 0;
}

.v5 .service-scene-heading h2 {
  max-width: 13em;
  margin-bottom: 0;
}

.v5 .service-scene-heading .scene-lead {
  max-width: 34em;
  margin: 0 0 4px;
}

.v5 .service-screen-frame {
  min-width: 0;
  margin: 0;
}

.v5 .service-screen-viewport {
  overflow: hidden;
  border: 8px solid #0d0d0c;
  background: #f8f8f6;
  box-shadow: 24px 24px 0 rgba(216, 181, 80, 0.11);
}

.v5 .service-screen-viewport img,
.v5 .service-screen-viewport video {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: auto;
  object-fit: contain;
}

.v5 .service-screen-frame figcaption {
  padding-top: 14px;
  color: var(--muted);
  font-size: 0.74rem;
}

.v5 .service-screen-frame--overview figcaption {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.v5 .hts-ui-comparison {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: stretch;
  gap: clamp(12px, 2vw, 24px);
}

.v5 .hts-ui-comparison-card {
  display: grid;
  align-content: center;
  gap: 9px;
  min-width: 0;
  min-height: 116px;
  padding: clamp(22px, 2.8vw, 32px);
  border: 1px solid var(--line);
  background: var(--surface);
}

.v5 .hts-ui-comparison-card > span {
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.v5 .hts-ui-comparison-card > strong {
  max-width: 19em;
  color: var(--text);
  font-size: clamp(1rem, 1.8vw, 1.35rem);
  line-height: 1.4;
  letter-spacing: -0.025em;
}

.v5 .hts-ui-comparison-card.is-primary {
  border-color: var(--accent);
  border-top-width: 5px;
  background: var(--surface-soft);
}

.v5 .hts-ui-comparison-card.is-primary > span,
.v5 .hts-ui-comparison-card.is-primary > strong {
  color: var(--accent);
}

.v5 .hts-ui-comparison-arrow {
  display: grid;
  width: clamp(28px, 3vw, 44px);
  place-items: center;
  color: var(--accent);
  font-size: clamp(1.4rem, 2.4vw, 2rem);
  font-weight: 900;
  pointer-events: none;
}

.v5 .service-screen-frame--ai .service-screen-viewport {
  position: relative;
  aspect-ratio: 16 / 9;
}

.v5 .service-screen-frame--ai img,
.v5 .service-screen-frame--ai video {
  position: absolute;
  top: 50%;
  left: 0;
  width: 150%;
  max-width: none;
  height: auto;
  transform: translateY(-50%);
  object-fit: cover;
  object-position: left center;
}

.v5 .service-screen-frame--ai-gif img,
.v5 .service-screen-frame--ai-gif video {
  position: static;
  width: 100%;
  max-width: 100%;
  transform: none;
  object-fit: contain;
}

.v5 .service-feature-strip {
  display: grid;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  list-style: none;
}

.v5 #market-selection .service-feature-strip {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.v5 #hts-overview .service-feature-strip {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.v5 .service-feature-strip li {
  display: grid;
  align-content: start;
  gap: 6px;
  min-width: 0;
  min-height: 104px;
  padding: 20px;
  border-right: 1px solid var(--line);
  border-bottom: 0;
  color: var(--text);
  font-weight: 800;
  line-height: 1.45;
}

.v5 .service-feature-strip li:last-child {
  border-right: 0;
}

.v5 .service-feature-strip strong {
  color: var(--text);
}

.v5 .service-feature-strip span {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 500;
}

.v5 #one-to-one .scene-copy {
  padding-left: clamp(0px, 3vw, 40px);
  border-left: 1px solid #6d5b2a;
}

.v5 #community-support .section-heading {
  padding-bottom: clamp(28px, 4vw, 44px);
  border-bottom: 1px solid var(--line);
}

@media (max-width: 900px) {
  .v5 .v5-hero {
    min-height: auto;
  }

  .v5 .problem-contrast {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .v5 .problem-contrast article:nth-child(2) {
    border-right: 0;
  }

  .v5 .problem-contrast article:nth-child(-n + 2) {
    border-bottom: 1px solid #bdb2a2;
  }

  .v5 .service-scene-heading {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .v5 .hts-ui-comparison {
    gap: 12px;
  }

  .v5 .hts-ui-comparison-card {
    min-height: 104px;
    padding: 18px;
  }

  .v5 .hts-ui-comparison-card > strong {
    font-size: 1rem;
  }

  .v5 #market-selection .service-feature-strip,
  .v5 #hts-overview .service-feature-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .v5 .service-feature-strip li:nth-child(2n) {
    border-right: 0;
  }

  .v5 .service-feature-strip li:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .v5 #one-to-one .scene-copy {
    padding-left: 0;
    border-left: 0;
  }
}

@media (max-width: 680px) {
  .v5 .v5-hero {
    padding: 54px 0 48px;
  }

  .v5 .v5-hero h1 {
    font-size: clamp(2.35rem, 12vw, 3.25rem);
  }

  .v5 .v5-hero-declaration br {
    display: none;
  }

  .v5 .v5-hero .fact-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .v5 .v5-hero .fact-list li {
    padding-inline: 8px;
  }

  .v5 .problem-contrast {
    grid-template-columns: 1fr;
  }

  .v5 .problem-contrast article {
    min-height: 138px;
    border-right: 0;
    border-bottom: 1px solid #bdb2a2;
  }

  .v5 .problem-contrast article:nth-child(3) {
    border-bottom: 1px solid #bdb2a2;
  }

  .v5 .problem-contrast article:last-child {
    border-bottom: 0;
  }

  .v5 .problem-resolution {
    text-align: left;
  }

  .v5 #market-overview .market-flow {
    grid-template-columns: 1fr 1fr;
    box-shadow: 9px 9px 0 rgba(216, 181, 80, 0.11);
  }

  .v5 #market-overview .market-flow li {
    min-height: 132px;
  }

  .v5 #market-overview .market-flow li + li::before {
    content: none;
  }

  .v5 [data-chapter="guided-practice"] > .shell::before {
    top: -28px;
  }

  .v5 .service-screen-scene {
    padding: 64px 0;
  }

  .v5 .service-screen-viewport {
    border-width: 4px;
    box-shadow: 9px 9px 0 rgba(216, 181, 80, 0.11);
  }

  .v5 .hts-ui-comparison {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .v5 .hts-ui-comparison-arrow {
    width: 28px;
    min-height: 28px;
    justify-self: center;
    transform: rotate(90deg);
  }

  .v5 #market-selection .service-feature-strip,
  .v5 #hts-overview .service-feature-strip {
    grid-template-columns: 1fr;
  }

  .v5 .service-feature-strip li,
  .v5 .service-feature-strip li:nth-child(2n),
  .v5 .service-feature-strip li:nth-child(-n + 2) {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .v5 .service-feature-strip li:last-child {
    border-bottom: 0;
  }

  .v5 .service-screen-frame--ai img,
  .v5 .service-screen-frame--ai video {
    width: 165%;
  }

  .v5 .service-screen-frame--ai-gif img,
  .v5 .service-screen-frame--ai-gif video {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .v5 .service-screen-viewport video {
    animation: none;
  }
}

@media (min-width: 901px) and (max-height: 920px) {
  .v5 .v5-hero {
    padding: 18px 0;
  }

  .v5 .v5-hero .scene-label {
    margin-bottom: 8px;
  }

  .v5 .v5-hero-kicker {
    margin-bottom: 8px;
    font-size: 0.82rem;
  }

  .v5 .v5-hero h1 {
    margin-bottom: 12px;
    font-size: clamp(3rem, 7.4vh, 4.15rem);
  }

  .v5 .v5-hero-declaration {
    gap: 2px;
    margin-bottom: 8px;
    font-size: 0.9rem;
    line-height: 1.45;
  }

  .v5 .v5-hero .hero-scope-note {
    margin-bottom: 10px;
    font-size: 0.72rem;
    line-height: 1.45;
  }

  .v5 .v5-hero .hero-start-cta,
  .v5 .v5-hero .hero-phone-cta {
    min-height: 48px;
    padding-block: 10px;
  }

  .v5 .v5-hero .fact-list {
    margin-top: 12px;
  }

  .v5 .v5-hero .fact-list li {
    padding-block: 5px;
  }
}

/* V5 scene 17: integrated course comparison and price rationale */
.v5 .course-programs-scene {
  min-height: auto;
  padding: clamp(72px, 6vw, 96px) 0;
}

.v5 .course-programs-scene .section-heading {
  margin-bottom: clamp(34px, 4vw, 52px);
  padding-bottom: clamp(24px, 3vw, 36px);
  border-bottom: 1px solid var(--line);
}

.v5 .course-program-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
  gap: clamp(20px, 2.6vw, 32px);
}

.v5 .course-program-card {
  --course-accent: #d8b550;
  display: grid;
  min-width: 0;
  padding: clamp(24px, 2.8vw, 34px);
  border: 1px solid var(--line);
  border-top: 8px solid var(--course-accent);
  background: var(--surface);
  box-shadow: 18px 18px 0 rgba(216, 181, 80, 0.09);
}

.v5 .course-program-card[data-course="advanced"] {
  --course-accent: #c4584f;
  box-shadow: 18px 18px 0 rgba(196, 88, 79, 0.09);
}

.v5 .course-program-header {
  display: grid;
  gap: 12px;
  min-height: 184px;
  padding-bottom: 22px;
}

.v5 .course-program-kicker {
  margin: 0;
  color: var(--course-accent);
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.v5 .course-program-header h3 {
  max-width: 13em;
  margin: 0;
  color: var(--text);
  font-size: clamp(1.55rem, 2.4vw, 2.2rem);
  line-height: 1.22;
  letter-spacing: -0.045em;
}

.v5 .course-program-fit {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  align-items: start;
  gap: 12px;
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.6;
}

.v5 .course-program-fit strong {
  color: var(--course-accent);
  font-size: 0.74rem;
}

.v5 .course-week-list {
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.v5 .course-week {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 16px;
  min-height: 76px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.v5 .course-week > span {
  color: var(--course-accent);
  font-size: 0.72rem;
  font-weight: 900;
  line-height: 1.5;
}

.v5 .course-week > div {
  display: grid;
  min-width: 0;
  gap: 4px;
}

.v5 .course-week strong {
  color: var(--text);
  font-size: 0.92rem;
  line-height: 1.4;
}

.v5 .course-week small {
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.45;
}

.v5 .course-price-conversion {
  display: grid;
  grid-template-columns: minmax(max-content, 0.85fr) 34px minmax(max-content, 1.25fr);
  align-items: center;
  gap: 8px;
  margin: 24px 0 0;
  padding: clamp(16px, 1.8vw, 20px);
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(216, 181, 80, 0.07), transparent 48%),
    var(--surface-soft);
}

.v5 .course-price-original,
.v5 .course-price-current {
  display: grid;
  min-width: 0;
  gap: 6px;
}

.v5 .course-price-current {
  justify-self: end;
}

.v5 .course-price-original > span,
.v5 .course-price-current > span {
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.06em;
}

.v5 .course-price-original s {
  color: var(--text);
  font-size: clamp(1.1rem, 1.65vw, 1.48rem);
  font-variant-numeric: tabular-nums;
  font-weight: 900;
  letter-spacing: -0.045em;
  line-height: 1.15;
  text-decoration-line: line-through;
  text-decoration-color: var(--course-accent);
  text-decoration-thickness: 3px;
  white-space: nowrap;
}

.v5 .course-price-arrow {
  display: grid;
  width: 34px;
  min-height: 34px;
  place-items: center;
  color: var(--course-accent);
  font-size: 1.5rem;
  font-weight: 900;
}

.v5 .course-price-current strong {
  color: var(--course-accent);
  font-size: clamp(1.45rem, 2.1vw, 1.9rem);
  font-variant-numeric: tabular-nums;
  line-height: 1.05;
  letter-spacing: -0.04em;
  white-space: nowrap;
}

.v5 .course-price-current b {
  width: max-content;
  max-width: 100%;
  padding: 5px 8px;
  border: 1px solid var(--course-accent);
  border-radius: 999px;
  color: var(--course-accent);
  font-size: 0.65rem;
  font-weight: 900;
}

.v5 .course-price-meta {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 5px 16px;
  margin: 4px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.67rem;
  font-weight: 800;
}

.v5 .course-value-preview {
  margin: 14px 0 8px;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 700;
  line-height: 1.5;
}

.v5 .course-value-details {
  margin-top: 0;
}

.v5 .course-value-details summary {
  display: grid;
  width: 100%;
  grid-template-columns: minmax(0, 1fr) max-content;
  align-items: center;
  gap: 14px;
  box-sizing: border-box;
  min-height: 64px;
  padding: 14px 18px;
  background: var(--course-accent);
  color: #151513;
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 900;
  list-style: none;
}

.v5 .course-value-details summary::-webkit-details-marker {
  display: none;
}

.v5 .course-value-details summary::after {
  grid-column: 2;
  grid-row: 1;
  margin-left: 8px;
  color: currentColor;
  content: "+";
  font-size: 1.25rem;
}

.v5 .course-value-details[open] summary::after {
  content: "−";
}

.v5 .course-value-details summary b {
  grid-column: 2;
  grid-row: 2;
  color: rgba(21, 21, 19, 0.72);
  font-size: 0.66rem;
  font-variant-numeric: tabular-nums;
  font-weight: 800;
}

.v5 .course-value-details summary:focus-visible {
  outline: 3px solid var(--text);
  outline-offset: 3px;
}

.v5 .course-value-details .course-value-list {
  padding: 0 18px 4px;
  margin: 0;
  border-top: 1px solid var(--line);
  background: var(--surface-soft);
  list-style: none;
}

.v5 .course-value-details .course-value-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) max-content;
  align-items: center;
  gap: 18px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.v5 .course-value-details .course-value-item > div {
  display: grid;
  min-width: 0;
  gap: 4px;
}

.v5 .course-value-details .course-value-item strong {
  color: var(--text);
  font-size: 0.78rem;
  line-height: 1.45;
}

.v5 .course-value-details .course-value-item span {
  color: var(--muted);
  font-size: 0.68rem;
  line-height: 1.45;
}

.v5 .course-value-details .course-value-item > b {
  color: var(--course-accent);
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.v5 .course-value-note {
  display: block;
  padding: 12px 18px 16px;
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 0.64rem;
  line-height: 1.5;
}

@media (max-width: 1100px) {
  .v5 .course-program-grid {
    grid-template-columns: 1fr;
  }

  .v5 .course-program-header {
    min-height: 0;
  }
}

@media (max-width: 680px) {
  .v5 .course-programs-scene {
    padding: 64px 0;
  }

  .v5 .course-program-card {
    padding: 22px 18px;
    box-shadow: 9px 9px 0 rgba(216, 181, 80, 0.09);
  }

  .v5 .course-program-card[data-course="advanced"] {
    box-shadow: 9px 9px 0 rgba(196, 88, 79, 0.09);
  }

  .v5 .course-program-fit {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .v5 .course-week {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 10px;
  }

  .v5 .course-price-conversion {
    grid-template-columns: 1fr;
    justify-items: center;
    gap: 10px;
    padding: 18px;
    text-align: center;
  }

  .v5 .course-price-original,
  .v5 .course-price-current {
    justify-items: center;
  }

  .v5 .course-price-current {
    justify-self: center;
  }

  .v5 .course-price-arrow {
    justify-self: center;
    transform: rotate(90deg);
  }

  .v5 .course-price-meta {
    grid-column: auto;
    display: grid;
    justify-content: center;
    text-align: center;
  }

  .v5 .course-value-details summary {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .v5 .course-value-details summary b {
    grid-column: 1;
  }

  .v5 .course-value-details .course-value-item {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .v5 .course-value-details .course-value-list {
    padding-inline: 14px;
  }
}