:root {
      color-scheme: light;
      --bg: #f6f4ee;
      --bg-panel: rgba(255, 255, 255, 0.82);
      --ink: #2f3433;
      --ink-soft: #5a625f;
      --charcoal: #242a2b;
      --navy: #314250;
      --gold: #c7b07c;
      --line: rgba(49, 66, 80, 0.14);
      --shadow: 0 22px 54px rgba(49, 66, 80, 0.09);
      --shadow-soft: 0 16px 34px rgba(49, 66, 80, 0.06);
      --shell: min(1180px, calc(100% - 32px));
      --font-sans: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic", sans-serif;
      --font-serif: "Shippori Mincho", "Yu Mincho", serif;
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      min-width: 320px;
      color: var(--ink);
      background: var(--bg);
      font-family: var(--font-sans);
      line-height: 1.84;
      letter-spacing: 0.01em;
      overflow-x: hidden;
    }

    body::before {
      position: fixed;
      inset: 0;
      background:
        linear-gradient(90deg, rgba(82, 96, 90, 0.018) 1px, transparent 1px),
        linear-gradient(180deg, rgba(82, 96, 90, 0.014) 1px, transparent 1px);
      background-size: 36px 36px;
      mask: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.55) 14%, rgba(0, 0, 0, 0.55) 88%, transparent);
      content: "";
      pointer-events: none;
      z-index: -2;
      opacity: 0.76;
    }

    body::after {
      position: fixed;
      inset: 0;
      background:
        radial-gradient(circle at 18% 0%, rgba(199, 176, 124, 0.12), transparent 28%),
        radial-gradient(circle at 100% 10%, rgba(49, 66, 80, 0.08), transparent 26%);
      content: "";
      pointer-events: none;
      z-index: -3;
    }

    img {
      display: block;
      max-width: 100%;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    h1,
    h2,
    h3,
    h4,
    p,
    ul,
    li {
      margin: 0;
    }

    ul {
      padding-left: 1.2em;
    }

    .shell {
      width: var(--shell);
      margin: 0 auto;
    }

    .hero,
    .section {
      position: relative;
    }

    .hero {
      min-height: min(88vh, 860px);
      padding: clamp(20px, 3vw, 48px) 0 64px;
      overflow: hidden;
      background:
        linear-gradient(
          90deg,
          rgba(246, 244, 238, 0.99) 0%,
          rgba(246, 244, 238, 0.96) 34%,
          rgba(246, 244, 238, 0.72) 58%,
          rgba(246, 244, 238, 0.24) 100%
        ),
        url("../images/lumi-lecture-board.jpg");
      background-size: cover;
      background-position: center right;
      background-repeat: no-repeat;
      isolation: isolate;
    }

    .hero::before {
      position: absolute;
      inset: 0;
      background:
        linear-gradient(90deg, rgba(49, 66, 80, 0.03) 1px, transparent 1px),
        linear-gradient(180deg, rgba(49, 66, 80, 0.024) 1px, transparent 1px),
        radial-gradient(circle at 78% 34%, rgba(255, 255, 255, 0.32), transparent 34%);
      background-size: 48px 48px, 48px 48px, auto;
      content: "";
      z-index: 0;
      pointer-events: none;
    }

    .hero::after {
      position: absolute;
      inset: 18px;
      border: 1px solid rgba(49, 66, 80, 0.08);
      content: "";
      pointer-events: none;
      z-index: 0;
    }

    .hero .shell {
      position: relative;
      z-index: 1;
      display: grid;
      min-height: inherit;
      align-content: center;
    }

    .hero__grid {
      display: grid;
      grid-template-columns: minmax(0, 1.04fr) minmax(320px, 0.88fr);
      gap: clamp(34px, 5vw, 74px);
      align-items: start;
    }

    .hero__content {
      max-width: 690px;
    }

    .hero__eyebrow,
    .section-label,
    .stat-label {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: #3b4a45;
      font-size: 0.74rem;
      font-weight: 700;
      letter-spacing: 0.18em;
      text-transform: uppercase;
    }

    .hero__eyebrow::before,
    .section-label::before,
    .stat-label::before {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--gold);
      content: "";
    }

    .hero__eyebrow {
      margin-bottom: 22px;
    }

    h1,
    h2,
    h3,
    h4 {
      color: var(--charcoal);
      font-family: var(--font-serif);
      letter-spacing: 0.02em;
    }

    .hero h1 {
      font-size: clamp(3.1rem, 5.8vw, 5.3rem);
      line-height: 1.08;
      text-wrap: balance;
    }

    .hero__lead {
      max-width: 44ch;
      margin-top: 26px;
      color: var(--navy);
      font-size: clamp(1.18rem, 2.2vw, 1.54rem);
      line-height: 1.92;
      text-wrap: auto;
      white-space: nowrap;
    }

    .hero__note {
      max-width: 58ch;
      margin-top: 20px;
      color: var(--ink-soft);
      font-size: 0.98rem;
      line-height: 1.92;
      white-space: normal;
    }

    .button-row {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 28px;
    }

    .button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      padding: 0 26px;
      border: 1px solid var(--navy);
      border-radius: 4px;
      color: var(--navy);
      font-size: 0.95rem;
      font-weight: 700;
      letter-spacing: 0.08em;
      transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease, opacity 180ms ease, transform 180ms ease;
    }

    .button:hover,
    .button:focus-visible {
      opacity: 0.88;
      transform: translateY(-1px);
      outline: none;
    }

    .button--primary {
      border-color: var(--navy);
      background: var(--navy);
      color: #ffffff;
    }

    .button--soft {
      background: rgba(255, 255, 255, 0.64);
    }

    .hero__meta {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 26px;
    }

    .meta-pill {
      display: inline-flex;
      align-items: center;
      min-height: 34px;
      padding: 0 14px;
      border: 1px solid rgba(49, 66, 80, 0.14);
      background: rgba(255, 255, 255, 0.66);
      color: rgba(49, 66, 80, 0.74);
      font-size: 0.8rem;
      font-weight: 700;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    .hero__aside {
      position: relative;
      justify-self: end;
      width: min(100%, 430px);
      padding-left: 24px;
    }

    .hero__aside::before {
      position: absolute;
      inset: -30px -18px -30px 0;
      border-left: 1px solid rgba(49, 66, 80, 0.12);
      background:
        linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.24)),
        linear-gradient(180deg, rgba(49, 66, 80, 0.015) 1px, transparent 1px);
      background-size: auto, 100% 28px;
      content: "";
      pointer-events: none;
    }

    .panel,
    .hero-panel,
    .reason-card,
    .audience-card,
    .step-card,
    .course-card,
    .course-sheet,
    .master-sheet,
    .year-card,
    .notice-card,
    .update-card,
    .credential-card,
    .compare-card,
    .cta-panel {
      border: 1px solid var(--line);
      background: var(--bg-panel);
      box-shadow: var(--shadow);
      backdrop-filter: blur(12px);
    }

    .hero-panel {
      display: grid;
      gap: 18px;
      padding: 24px;
      background:
        linear-gradient(180deg, rgba(255,255,255,0.92), rgba(247,244,237,0.78)),
        linear-gradient(90deg, rgba(49,66,80,0.018) 1px, transparent 1px),
        linear-gradient(180deg, rgba(49,66,80,0.014) 1px, transparent 1px);
      background-size: auto, 28px 28px, 28px 28px;
    }

    .hero-panel h2 {
      font-size: 1.44rem;
      line-height: 1.28;
    }

    .hero-panel p {
      color: var(--ink-soft);
      font-size: 0.94rem;
      line-height: 1.8;
    }

    .hero-steps {
      display: grid;
      gap: 12px;
      padding: 0;
      margin: 0;
      list-style: none;
    }

    .hero-steps li {
      display: grid;
      grid-template-columns: 1fr;
      gap: 0;
      padding: 14px 0;
      border-top: 1px solid rgba(49, 66, 80, 0.1);
    }

    .hero-steps li:first-child {
      border-top: 1px solid rgba(49, 66, 80, 0.16);
    }

    .hero-steps strong {
      display: block;
      margin-bottom: 4px;
      font-size: 1rem;
      line-height: 1.45;
    }

    .hero-panel__note {
      padding: 16px 18px;
      border: 1px dashed rgba(49, 66, 80, 0.24);
      background: rgba(255, 255, 255, 0.76);
    }

    .hero-panel__note strong {
      display: block;
      margin-bottom: 8px;
      color: var(--navy);
      font-size: 0.9rem;
      letter-spacing: 0.12em;
      text-transform: uppercase;
    }

    .section {
      position: relative;
      padding: clamp(96px, 10vw, 132px) 0;
      scroll-margin-top: 96px;
      isolation: isolate;
    }

    .section::before {
      position: absolute;
      inset: 0 calc(50% - 50vw);
      z-index: -2;
      content: "";
      pointer-events: none;
    }

    #reason::before {
      background:
        radial-gradient(circle at 88% 18%, rgba(199,176,124,0.12), transparent 28%),
        linear-gradient(180deg, rgba(255,255,255,0.72), rgba(248,246,241,0.48));
    }

    #audience::before {
      background:
        linear-gradient(180deg, rgba(239,235,225,0.72), rgba(246,244,238,0.92));
    }

    #program::before {
      background:
        radial-gradient(circle at 18% 12%, rgba(199,176,124,0.18), transparent 30%),
        linear-gradient(180deg, rgba(232,226,212,0.9), rgba(244,240,231,0.94));
    }

    #beginner::before {
      background:
        linear-gradient(180deg, rgba(255,255,255,0.78), rgba(248,246,241,0.66));
    }

    #intermediate::before {
      background:
        linear-gradient(180deg, rgba(242,238,229,0.82), rgba(250,248,244,0.72));
    }

    #master::before {
      background:
        radial-gradient(circle at 82% 10%, rgba(199,176,124,0.18), transparent 28%),
        linear-gradient(180deg, rgba(255,255,255,0.86), rgba(244,239,228,0.9));
    }

    #apply::before {
      background:
        linear-gradient(180deg, rgba(49,66,80,0.08), rgba(246,244,238,0.86));
    }

    .section::after {
      position: absolute;
      top: 0;
      left: calc(50% - 50vw);
      width: 100vw;
      height: 1px;
      background: linear-gradient(
        90deg,
        transparent,
        rgba(199,176,124,0.48),
        rgba(49,66,80,0.18),
        transparent
      );
      content: "";
      pointer-events: none;
    }

    .js .section {
      opacity: 0;
      transform: translateY(24px);
      transition:
        opacity 780ms ease,
        transform 780ms cubic-bezier(0.22, 1, 0.36, 1);
    }

    .js .section.is-visible {
      opacity: 1;
      transform: translateY(0);
    }

    .section-head {
      max-width: 880px;
      margin-bottom: 32px;
    }

    #master .section-head {
      margin-bottom: 18px;
    }

    .section-head h2 {
      margin-top: 16px;
      font-size: clamp(2rem, 3.2vw, 3rem);
      line-height: 1.22;
      text-wrap: balance;
    }

    #program .section-head h2 {
      white-space: nowrap;
    }

    .section-head p {
      margin-top: 14px;
      color: rgba(49, 66, 80, 0.72);
      font-size: 1rem;
      line-height: 1.92;
    }

    .panel {
      padding: 28px;
    }

    #program {
      padding-top: clamp(112px, 11vw, 150px);
      padding-bottom: clamp(112px, 11vw, 150px);
    }

    #program .panel {
      padding: clamp(32px, 4vw, 52px);
      border: 1px solid rgba(199,176,124,0.34);
      background: linear-gradient(180deg, rgba(255,255,255,0.94), rgba(248,245,238,0.82));
      box-shadow: 0 34px 86px rgba(49,66,80,0.13);
    }

    .reason-layout,
    .master-layout,
    .course-card {
      display: grid;
      gap: 24px;
      align-items: start;
    }

    .reason-layout,
    .master-layout {
      grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.98fr);
    }

    #master .master-layout {
      gap: clamp(32px, 5vw, 64px);
    }

    .reason-copy h3 {
      color: var(--navy);
      font-size: 1.08rem;
      line-height: 1.45;
    }

    .reason-copy h3 + p {
      margin-top: 10px;
    }

    .reason-copy p + h3 {
      margin-top: 24px;
    }

    .reason-copy p + p {
      margin-top: 16px;
    }

    .reason-copy .text-marker {
      background: linear-gradient(transparent 62%, rgba(199, 176, 124, 0.34) 62%);
      font-weight: 700;
    }

    .reason-grid {
      display: grid;
      gap: 16px;
    }

    .reason-visual {
      position: relative;
      align-self: center;
      margin: 0;
      overflow: hidden;
      max-width: 430px;
      margin-left: auto;
      border: 1px solid var(--line);
      background: var(--bg-panel);
      box-shadow: var(--shadow-soft);
    }

    .reason-visual img {
      width: 100%;
      height: auto;
      max-height: 360px;
      object-fit: cover;
      filter: grayscale(20%) brightness(1.05);
    }

    .reason-visual figcaption {
      position: absolute;
      left: 24px;
      bottom: 22px;
      padding: 10px 14px;
      background: rgba(246, 244, 238, 0.84);
      color: var(--charcoal);
      font-family: var(--font-serif);
      font-size: 1.05rem;
      letter-spacing: 0.06em;
      line-height: 1.4;
    }

    .reason-card,
    .audience-card,
    .update-card,
    .credential-card,
    .compare-card {
      padding: 20px;
      box-shadow: var(--shadow-soft);
    }

    .reason-card h3,
    .audience-card h3,
    .update-card h3,
    .credential-card h3,
    .compare-card h3 {
      font-size: 1.08rem;
      line-height: 1.45;
    }

    .reason-card p,
    .audience-card p,
    .update-card p,
    .credential-card p,
    .compare-card p {
      margin-top: 12px;
      color: rgba(49, 66, 80, 0.68);
      font-size: 0.92rem;
      line-height: 1.78;
    }

    .audience-grid,
    .update-grid,
    .credential-grid,
    .compare-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 16px;
    }

    .audience-grid {
      gap: 22px;
    }

    .audience-card {
      min-height: 180px;
      padding: 24px;
    }

    .program-stage-grid {
      display: grid;
      grid-template-columns: 0.88fr 0.88fr 1.24fr;
      gap: 20px;
      align-items: stretch;
    }

    .program-card {
      position: relative;
      height: 100%;
      min-height: 100%;
      border: 1px solid rgba(49, 66, 80, 0.12);
      background:
        linear-gradient(180deg, rgba(255,255,255,0.9), rgba(248,245,238,0.7)),
        linear-gradient(90deg, rgba(49,66,80,0.012) 1px, transparent 1px),
        linear-gradient(180deg, rgba(49,66,80,0.01) 1px, transparent 1px);
      background-size: auto, 28px 28px, 28px 28px;
      box-shadow: var(--shadow-soft);
      transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
    }

    .program-card:hover,
    .program-card:focus-within {
      transform: translateY(-4px);
      box-shadow: 0 22px 44px rgba(49, 66, 80, 0.1);
    }

    .program-card__link {
      position: absolute;
      inset: 0;
      z-index: 1;
    }

    .program-card__link:focus-visible {
      outline: 2px solid rgba(199, 176, 124, 0.72);
      outline-offset: 4px;
    }

    .program-card__content {
      position: relative;
      z-index: 2;
      display: flex;
      flex-direction: column;
      gap: 12px;
      height: 100%;
      padding: 20px 18px 18px;
    }

    .program-card__meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
    }

    .program-card__number {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
      border: 1px solid rgba(49, 66, 80, 0.14);
      border-radius: 50%;
      color: rgba(49, 66, 80, 0.56);
      font-family: var(--font-serif);
      font-size: 0.84rem;
      letter-spacing: 0.12em;
    }

    .program-card__time {
      color: rgba(49, 66, 80, 0.58);
      font-size: 0.78rem;
      font-weight: 700;
      letter-spacing: 0.14em;
      text-transform: uppercase;
    }

    .program-card h3 {
      font-size: 1.18rem;
      line-height: 1.34;
    }

    .program-card p {
      color: rgba(49, 66, 80, 0.72);
      font-size: 0.93rem;
      line-height: 1.84;
    }

    .program-card__study {
      padding: 14px 14px 16px;
      border: 1px solid rgba(199, 176, 124, 0.26);
      background: rgba(199, 176, 124, 0.08);
    }

    .program-card__study h4 {
      color: var(--navy);
      font-size: 0.92rem;
      line-height: 1.45;
    }

    .program-card__study ul {
      margin: 10px 0 0;
      padding-left: 18px;
      color: rgba(49, 66, 80, 0.74);
      font-size: 0.89rem;
      line-height: 1.78;
    }

    .program-card__study li::marker {
      color: rgba(118, 97, 53, 0.74);
    }

    .program-card__study li + li {
      margin-top: 4px;
    }

    .program-card__footer {
      margin-top: 18px;
      padding-top: 12px;
      border-top: 1px solid rgba(49, 66, 80, 0.1);
      color: var(--navy);
      font-size: 0.82rem;
      font-weight: 600;
      letter-spacing: 0.08em;
    }

    .program-card__next {
      position: relative;
      z-index: 3;
      width: fit-content;
      margin-top: auto;
      color: rgba(49, 66, 80, 0.6);
      font-size: 0.8rem;
      line-height: 1.6;
      text-decoration: none;
      border-bottom: 1px solid rgba(49, 66, 80, 0.18);
      transition: color 180ms ease, border-color 180ms ease;
    }

    .program-card__next:hover,
    .program-card__next:focus-visible {
      color: var(--navy);
      border-color: rgba(199, 176, 124, 0.58);
    }

    .program-card__cta {
      position: relative;
      z-index: 3;
      width: fit-content;
      margin-top: auto;
    }

    .program-card--master {
      transform: none;
      border-color: rgba(199, 176, 124, 0.58);
      background:
        linear-gradient(180deg, rgba(251,248,241,0.96), rgba(247,243,233,0.86)),
        linear-gradient(90deg, rgba(199,176,124,0.08) 1px, transparent 1px),
        linear-gradient(180deg, rgba(199,176,124,0.08) 1px, transparent 1px);
      background-size: auto, 28px 28px, 28px 28px;
      box-shadow: 0 28px 64px rgba(49, 66, 80, 0.14);
    }

    .program-card--master:hover,
    .program-card--master:focus-within {
      transform: translateY(-4px);
      border-color: rgba(199, 176, 124, 0.58);
      box-shadow: 0 30px 70px rgba(49, 66, 80, 0.16);
    }

    .program-card--master .program-card__content {
      gap: 14px;
      padding: 22px 20px 20px;
      min-height: 100%;
    }

    .program-card--master .program-card__number {
      border-color: rgba(199, 176, 124, 0.38);
      color: rgba(118, 97, 53, 0.88);
      background: rgba(199, 176, 124, 0.08);
    }

    .program-card--master .program-card__time {
      color: rgba(118, 97, 53, 0.76);
    }

    .program-card--master h3 {
      font-size: 1.32rem;
    }

    .program-note,
    .cta-strip {
      margin-top: 22px;
      padding: 18px 20px;
      border: 1px dashed rgba(49, 66, 80, 0.24);
      background: rgba(255, 255, 255, 0.68);
      color: rgba(49, 66, 80, 0.72);
      font-size: 0.94rem;
      line-height: 1.84;
    }

    .program-preview {
      margin-top: 22px;
      padding: 24px 28px;
      border: 1px solid rgba(49, 66, 80, 0.14);
      background:
        linear-gradient(180deg, rgba(255,255,255,0.88), rgba(248,245,238,0.68)),
        linear-gradient(90deg, rgba(49,66,80,0.012) 1px, transparent 1px),
        linear-gradient(180deg, rgba(49,66,80,0.01) 1px, transparent 1px);
      background-size: auto, 28px 28px, 28px 28px;
      box-shadow: var(--shadow-soft);
    }

    .program-preview h3 {
      font-size: 1.24rem;
      line-height: 1.45;
    }

    .program-preview p {
      color: rgba(49, 66, 80, 0.72);
      font-size: 0.94rem;
      line-height: 1.84;
    }

    .program-preview__lead {
      margin-top: 10px;
    }

    .lesson-visual {
      position: relative;
      margin: 20px 0 0;
      min-height: 320px;
      overflow: hidden;
      border: 1px solid rgba(49, 66, 80, 0.12);
      background: rgba(255, 255, 255, 0.78);
      box-shadow: var(--shadow-soft);
    }

    .lesson-visual img {
      display: block;
      width: 100%;
      height: auto;
      max-height: 480px;
      object-fit: cover;
      filter: grayscale(12%) brightness(1.02);
    }

    .lesson-visual figcaption {
      position: absolute;
      left: 24px;
      bottom: 22px;
      padding: 10px 14px;
      background: rgba(246, 244, 238, 0.84);
      color: var(--charcoal);
      font-family: var(--font-serif);
      font-size: 1.05rem;
      letter-spacing: 0.06em;
      line-height: 1.4;
    }

    .program-preview__schedule {
      margin-top: 22px;
      padding-top: 22px;
      border-top: 1px solid rgba(49, 66, 80, 0.12);
    }

    .program-preview__schedule p + p {
      margin-top: 10px;
    }

    .program-preview__actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 18px;
    }

    .cta-strip {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 20px;
      align-items: center;
      padding: 24px 28px;
      border-style: solid;
      box-shadow: var(--shadow-soft);
    }

    .cta-strip h3 {
      font-size: 1.24rem;
      line-height: 1.45;
    }

    .cta-strip p {
      margin-top: 10px;
    }

    .cta-strip__actions,
    .compare-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .course-card {
      grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
      padding: 28px;
    }

    #beginner .course-card,
    #intermediate .course-card {
      box-shadow: 0 18px 46px rgba(49,66,80,0.075);
      border-color: rgba(49,66,80,0.12);
    }

    .course-card__intro {
      padding-right: 6px;
      border-right: 1px solid rgba(49, 66, 80, 0.12);
    }

    .course-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--navy);
      font-size: 0.74rem;
      font-weight: 700;
      letter-spacing: 0.16em;
      text-transform: uppercase;
    }

    .course-kicker::before {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--gold);
      content: "";
    }

    .course-card__intro h3 {
      margin-top: 14px;
      font-size: clamp(1.9rem, 3vw, 2.6rem);
      line-height: 1.18;
    }

    .course-subtitle {
      margin-top: 12px;
      color: var(--navy);
      font-size: 1.08rem;
      line-height: 1.72;
    }

    .course-target,
    .course-arrival,
    .course-issue {
      margin-top: 18px;
      color: rgba(49, 66, 80, 0.72);
      font-size: 0.94rem;
      line-height: 1.84;
    }

    .course-target strong,
    .course-arrival strong,
    .course-issue strong {
      display: block;
      margin-bottom: 8px;
      color: var(--charcoal);
      font-size: 0.8rem;
      letter-spacing: 0.14em;
      text-transform: uppercase;
    }

    .course-card__body {
      display: grid;
      gap: 18px;
    }

    .course-sheet {
      padding: 18px 20px 20px;
      box-shadow: var(--shadow-soft);
    }

    .course-sheet h4 {
      font-size: 1rem;
      line-height: 1.5;
    }

    .course-sheet ul {
      margin-top: 14px;
      color: rgba(49, 66, 80, 0.72);
    }

    .course-sheet li + li {
      margin-top: 8px;
    }

    .master-sheet,
    .year-card,
    .notice-card,
    .cta-panel {
      padding: 24px;
    }

    .master-sheet {
      padding: 28px;
      border-color: rgba(199, 176, 124, 0.34);
      background:
        linear-gradient(180deg, rgba(255,255,255,0.94), rgba(248,245,238,0.82)),
        linear-gradient(90deg, rgba(199,176,124,0.06) 1px, transparent 1px),
        linear-gradient(180deg, rgba(199,176,124,0.05) 1px, transparent 1px);
      background-size: auto, 28px 28px, 28px 28px;
      box-shadow: 0 20px 48px rgba(49, 66, 80, 0.08);
    }

    #master .master-sheet {
      padding: 28px 32px 32px;
      border: 1px solid rgba(199, 176, 124, 0.42);
      background:
        linear-gradient(180deg, rgba(255,255,255,0.96), rgba(249,246,239,0.86)),
        linear-gradient(90deg, rgba(199,176,124,0.06) 1px, transparent 1px),
        linear-gradient(180deg, rgba(199,176,124,0.05) 1px, transparent 1px);
      background-size: auto, 28px 28px, 28px 28px;
      box-shadow: 0 28px 68px rgba(49, 66, 80, 0.1);
    }

    .master-sheet h3 {
      margin-top: 0;
      margin-bottom: 12px;
    }

    .master-sheet h3,
    .year-card h3,
    .notice-card h3 {
      font-size: 1.18rem;
      line-height: 1.4;
    }

    .master-sheet p + h3 {
      margin-top: 28px;
    }

    .master-sheet p,
    .year-card p,
    .notice-card p {
      margin-top: 12px;
      color: rgba(49, 66, 80, 0.72);
      font-size: 0.94rem;
      line-height: 1.84;
    }

    .master-sheet h4 {
      margin-top: 28px;
      color: var(--navy);
      font-size: 0.96rem;
      line-height: 1.5;
    }

    .master-values {
      display: grid;
      gap: 10px;
      margin-top: 12px;
    }

    .master-values div {
      padding: 12px 14px;
      border: 1px solid rgba(199, 176, 124, 0.24);
      background: rgba(255, 255, 255, 0.72);
      color: rgba(49, 66, 80, 0.78);
      font-size: 0.9rem;
      line-height: 1.72;
    }

    #master .master-values div {
      background: rgba(255, 255, 255, 0.82);
    }

    .master-side {
      display: grid;
      gap: 18px;
    }

    .year-card {
      background:
        linear-gradient(180deg, rgba(49,66,80,0.94), rgba(49,66,80,0.82)),
        linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px),
        linear-gradient(180deg, rgba(255,255,255,0.05) 1px, transparent 1px);
      background-size: auto, 28px 28px, 28px 28px;
      color: #f7f4ee;
    }

    .year-card h3,
    .year-card p,
    .year-card .stat-label,
    .year-card strong {
      color: inherit;
    }

    .year-card .stat-label::before {
      background: rgba(255, 255, 255, 0.64);
    }

    .year-stamp {
      margin-top: 16px;
      padding: 18px 20px;
      border: 1px solid rgba(255, 255, 255, 0.18);
      background: rgba(255, 255, 255, 0.08);
      font-family: var(--font-serif);
      font-size: 1.18rem;
      line-height: 1.6;
      letter-spacing: 0.04em;
    }

    .notice-card {
      box-shadow: var(--shadow-soft);
    }

    .credential-card {
      position: relative;
      overflow: hidden;
    }

    .credential-card::before {
      position: absolute;
      inset: 14px;
      border: 1px solid rgba(199, 176, 124, 0.26);
      content: "";
      pointer-events: none;
    }

    .credential-card__meta {
      display: inline-flex;
      align-items: center;
      min-height: 30px;
      padding: 0 12px;
      border: 1px solid rgba(49, 66, 80, 0.12);
      color: rgba(49, 66, 80, 0.56);
      font-size: 0.72rem;
      font-weight: 700;
      letter-spacing: 0.16em;
      text-transform: uppercase;
    }

    .compare-card ul {
      margin: 0;
      color: rgba(49, 66, 80, 0.72);
    }

    .compare-card li + li {
      margin-top: 8px;
    }

    .compare-card__direction {
      padding-top: 16px;
      border-top: 1px solid rgba(49, 66, 80, 0.1);
      color: var(--navy);
      font-size: 0.92rem;
      font-weight: 700;
      line-height: 1.74;
    }

    .cta-panel {
      background:
        linear-gradient(135deg, rgba(49,66,80,0.94), rgba(49,66,80,0.82)),
        linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px),
        linear-gradient(180deg, rgba(255,255,255,0.05) 1px, transparent 1px);
      background-size: auto, 28px 28px, 28px 28px;
      color: #f7f4ee;
    }

    .cta-panel h2,
    .cta-panel p,
    .cta-panel .section-label {
      color: inherit;
    }

    .cta-panel .section-label::before {
      background: rgba(255, 255, 255, 0.62);
    }

    .cta-panel .button--primary {
      background: #ffffff;
      border-color: #ffffff;
      color: var(--navy);
    }

    .cta-panel .button--soft {
      border-color: rgba(255, 255, 255, 0.42);
      background: rgba(255, 255, 255, 0.08);
      color: #ffffff;
    }

    .footer {
      width: var(--shell);
      margin: 10px auto 0;
      padding: 28px 0 54px;
      border-top: 1px solid rgba(51, 68, 83, 0.12);
      color: var(--ink-soft);
      font-size: 0.86rem;
      line-height: 1.78;
    }

    @media (max-width: 1100px) {
      .hero__grid,
      .reason-layout,
      .master-layout,
      .course-card {
        grid-template-columns: 1fr;
      }

      .hero__aside {
        justify-self: stretch;
        width: 100%;
        padding-left: 0;
      }

      .hero__aside::before {
        inset: -18px 0 -18px 0;
        border-left: none;
        border-top: 1px solid rgba(49, 66, 80, 0.12);
        background:
          linear-gradient(180deg, rgba(255,255,255,0), rgba(255,255,255,0.28)),
          linear-gradient(90deg, rgba(49,66,80,0.015) 1px, transparent 1px);
        background-size: auto, 28px 100%;
      }

      .audience-grid,
      .update-grid,
      .credential-grid,
      .compare-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .cta-strip {
        grid-template-columns: 1fr;
      }

      .course-card__intro {
        padding-right: 0;
        padding-bottom: 14px;
        border-right: none;
        border-bottom: 1px solid rgba(49, 66, 80, 0.12);
      }

      .reason-visual {
        max-width: none;
        margin-left: 0;
      }
    }

    @media (max-width: 760px) {
      .section {
        padding: 84px 0;
      }

      #program {
        padding-top: 96px;
        padding-bottom: 96px;
      }

      .hero {
        min-height: auto;
        padding-bottom: 56px;
        background-position: 70% center;
      }

      .hero h1 {
        font-size: clamp(2.4rem, 10vw, 4rem);
      }

      .hero__lead {
        white-space: normal;
      }

      #program .section-head h2 {
        white-space: normal;
      }

      .program-stage-grid {
        grid-template-columns: 1fr;
      }

      .program-card--master {
        transform: none;
      }

      .program-card--master:hover,
      .program-card--master:focus-within {
        transform: translateY(-4px);
      }

      .program-card__cta {
        width: 100%;
        justify-content: center;
      }

      .program-card__next {
        width: fit-content;
      }

      .lesson-visual {
        min-height: 240px;
      }

      .lesson-visual img {
        max-height: 320px;
      }

      .reason-visual img {
        max-height: 320px;
      }

      .audience-grid,
      .update-grid,
      .credential-grid,
      .compare-grid {
        grid-template-columns: 1fr;
      }

      .button-row,
      .program-preview__actions,
      .cta-strip__actions,
      .compare-actions {
        display: grid;
        grid-template-columns: 1fr;
      }

      .button {
        width: 100%;
      }

      .hero-steps li {
        grid-template-columns: 1fr;
      }
    }