:root {
      --navy-950: #06101c;
      --navy-900: #0b1c33;
      --navy-800: #122844;
      --navy-700: #1a3a5c;
      --navy-600: #234b73;
      --blue-700: #1d4ed8;
      --blue-600: #2563eb;
      --blue-500: #3b82f6;
      --gold: #c4a35a;
      --gold-soft: #e8d7a8;
      --ink: #142033;
      --muted: #5b6b7c;
      --line: #e4e9f0;
      --bg: #f6f8fb;
      --white: #ffffff;
      --shadow: 0 18px 50px rgba(11, 28, 51, 0.1);
      --radius: 18px;
      --header-h: 76px;
      --max: 1160px;
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 8px); }
    body {
      font-family: Pretendard, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
      color: var(--ink);
      background: var(--white);
      line-height: 1.7;
    }
    img { max-width: 100%; display: block; }
    a { color: inherit; text-decoration: none; }
    button, input, textarea { font-family: inherit; }
    .sr-only {
      position: absolute; width: 1px; height: 1px; overflow: hidden;
      clip: rect(0, 0, 0, 0);
    }

    /* 상단 고정 네비게이션 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      height: var(--header-h);
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(18, 40, 68, 0.06);
    }
    .header-inner {
      max-width: var(--max);
      margin: 0 auto;
      height: 100%;
      padding: 0 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
    }
    .brand-mark {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: #000;
      overflow: hidden;
      flex-shrink: 0;
      box-shadow: 0 8px 20px rgba(11, 28, 51, 0.22);
    }
    .brand-mark img {
      width: 100%;
      height: 100%;
      object-fit: contain;
      display: block;
      background: #000;
    }
    .brand-name {
      font-size: 18px;
      font-weight: 800;
      color: var(--navy-900);
      letter-spacing: -0.03em;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      min-width: 0;
    }
    .nav-wrap { display: flex; align-items: center; gap: 8px; }
    .nav-list {
      display: flex;
      align-items: center;
      gap: 4px;
      list-style: none;
    }
    .nav-list a {
      display: block;
      padding: 8px 12px;
      font-size: 15px;
      font-weight: 600;
      color: var(--navy-700);
      border-radius: 10px;
    }
    .nav-list a:hover { background: var(--bg); color: var(--navy-900); }
    .header-cta {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-left: 8px;
      padding: 11px 18px;
      border-radius: 999px;
      background: var(--navy-900);
      color: #fff;
      font-size: 14px;
      font-weight: 700;
      white-space: nowrap;
      transition: transform 0.2s ease, background 0.2s ease;
    }
    .header-cta:hover { background: var(--navy-800); transform: translateY(-1px); }
    .menu-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border: 1px solid var(--line);
      background: #fff;
      border-radius: 10px;
      cursor: pointer;
    }
    .menu-toggle span {
      display: block;
      width: 18px;
      height: 2px;
      margin: 4px auto;
      background: var(--navy-900);
    }

    /* 메인 비주얼 */
    .hero {
      position: relative;
      min-height: calc(100vh - var(--header-h));
      background:
        radial-gradient(1200px 500px at 80% 10%, rgba(59, 130, 246, 0.18), transparent 55%),
        radial-gradient(800px 400px at 10% 90%, rgba(196, 163, 90, 0.12), transparent 50%),
        linear-gradient(160deg, #071222 0%, #0e2744 48%, #123056 100%);
      color: #fff;
      overflow: hidden;
    }
    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
      background-size: 48px 48px;
      mask-image: radial-gradient(circle at 70% 30%, black, transparent 72%);
      pointer-events: none;
    }
    .hero-inner {
      position: relative;
      max-width: var(--max);
      margin: 0 auto;
      padding: 88px 24px 72px;
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: var(--gold-soft);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      margin-bottom: 18px;
    }
    .eyebrow::before {
      content: "";
      width: 28px;
      height: 1px;
      background: var(--gold);
    }
    .hero h1 {
      font-size: clamp(28px, 3vw, 38px);
      line-height: 1.3;
      letter-spacing: -0.04em;
      font-weight: 800;
      margin-bottom: 20px;
    }
    .hero-sub {
      max-width: 540px;
      color: rgba(255,255,255,0.78);
      font-size: 17px;
      margin-bottom: 36px;
    }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .btn-primary, .btn-ghost {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 50px;
      padding: 0 22px;
      border-radius: 999px;
      font-weight: 700;
      font-size: 15px;
    }
    .btn-primary {
      background: linear-gradient(180deg, #d4b56d, var(--gold));
      color: var(--navy-950);
      box-shadow: 0 10px 24px rgba(196, 163, 90, 0.28);
    }
    .btn-primary:hover { filter: brightness(1.05); }
    .btn-ghost {
      border: 1px solid rgba(255,255,255,0.22);
      color: #fff;
      background: rgba(255,255,255,0.06);
    }
    .hero-panel {
      background: rgba(255,255,255,0.07);
      border: 1px solid rgba(255,255,255,0.12);
      border-radius: 28px;
      padding: 28px;
      backdrop-filter: blur(12px);
    }
    .hero-panel-title {
      font-family: "Playfair Display", serif;
      font-size: 28px;
      margin-bottom: 8px;
      line-height: 1.3;
      word-break: keep-all;
    }
    .hero-panel p { color: rgba(255,255,255,0.72); font-size: 14px; word-break: keep-all; }
    .hero-stats {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-top: 28px;
    }
    .stat {
      background: rgba(7, 18, 34, 0.35);
      border-radius: 16px;
      padding: 16px 10px;
      text-align: center;
      min-width: 0;
    }
    .stat strong {
      display: block;
      font-size: 22px;
      color: var(--gold-soft);
      letter-spacing: -0.03em;
      word-break: keep-all;
    }
    .stat span {
      display: block;
      margin-top: 6px;
      font-size: 12px;
      color: rgba(255,255,255,0.65);
      word-break: keep-all;
      line-height: 1.4;
    }
    .program-tabs {
      position: relative;
      max-width: var(--max);
      margin: -36px auto 0;
      padding: 0 24px 8px;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      z-index: 2;
    }
    .program-tab {
      background: #fff;
      border-radius: 16px;
      padding: 18px 20px;
      box-shadow: var(--shadow);
      border: 1px solid rgba(18, 40, 68, 0.04);
    }
    .program-tab small {
      display: block;
      color: var(--blue-600);
      font-weight: 700;
      font-size: 12px;
      margin-bottom: 4px;
    }
    .program-tab strong { font-size: 16px; color: var(--navy-900); }

    /* 공통 섹션 */
    section { padding: 96px 24px; scroll-margin-top: calc(var(--header-h) + 8px); }
    .section-inner { max-width: var(--max); margin: 0 auto; }
    .section-head { text-align: center; max-width: 640px; margin: 0 auto 56px; }
    .section-kicker {
      color: var(--blue-600);
      font-size: 13px;
      font-weight: 800;
      letter-spacing: 0.14em;
      text-transform: uppercase;
      margin-bottom: 10px;
    }
    .section-head h2 {
      font-size: clamp(28px, 3.4vw, 40px);
      color: var(--navy-900);
      letter-spacing: -0.04em;
      line-height: 1.3;
      margin-bottom: 12px;
    }
    .section-head p { color: var(--muted); font-size: 16px; }

    /* 학원 소개 */
    .about { background: var(--bg); }
    .about-grid {
      display: grid;
      grid-template-columns: 1.05fr 0.95fr;
      gap: 48px;
      align-items: center;
    }
    .about-copy h2 {
      font-size: clamp(28px, 3vw, 38px);
      letter-spacing: -0.04em;
      color: var(--navy-900);
      margin: 8px 0 18px;
    }
    .about-copy p { color: var(--muted); font-size: 16px; white-space: pre-line; }
    .about-visual {
      min-height: 360px;
      border-radius: 28px;
      background:
        linear-gradient(180deg, rgba(11,28,51,0.15), rgba(11,28,51,0.55)),
        radial-gradient(circle at 30% 20%, #3b82f6 0, transparent 40%),
        linear-gradient(145deg, #1a3a5c, #0b1c33);
      color: #fff;
      padding: 36px;
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
      position: relative;
      overflow: hidden;
    }
    .about-visual::after {
      content: "BEST";
      position: absolute;
      right: -10px;
      top: 18px;
      font-family: "Playfair Display", serif;
      font-size: 92px;
      opacity: 0.08;
      letter-spacing: 0.08em;
    }
    .about-visual h3 { font-size: 26px; margin-bottom: 8px; }
    .about-visual p { color: rgba(255,255,255,0.75); }

    /* 특징 */
    .feature-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .feature-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 32px 28px;
      box-shadow: 0 10px 30px rgba(11, 28, 51, 0.04);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow);
    }
    .feature-icon {
      width: 54px;
      height: 54px;
      border-radius: 50%;
      background: #f3ead6;
      color: var(--navy-800);
      display: grid;
      place-items: center;
      margin-bottom: 20px;
    }
    .feature-card h3 {
      font-size: 20px;
      color: var(--navy-900);
      margin-bottom: 10px;
      letter-spacing: -0.03em;
    }
    .feature-card p { color: var(--muted); font-size: 15px; }

    /* 커리큘럼 */
    .curriculum { background: var(--navy-950); color: #fff; }
    .curriculum .section-kicker { color: var(--gold-soft); }
    .curriculum .section-head h2 { color: #fff; }
    .curriculum .section-head p { color: rgba(255,255,255,0.68); }
    .curriculum-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
    }
    .course-card {
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: 22px;
      padding: 28px;
      min-height: 280px;
    }
    .course-card em {
      display: inline-block;
      font-style: normal;
      font-size: 12px;
      font-weight: 700;
      color: var(--navy-900);
      background: var(--gold);
      border-radius: 999px;
      padding: 4px 10px;
      margin-bottom: 16px;
    }
    .course-card h3 { font-size: 24px; margin-bottom: 12px; }
    .course-card p { color: rgba(255,255,255,0.72); font-size: 15px; }

    /* 오시는 길 */
    .contact-grid {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 24px;
    }
    .info-list {
      display: grid;
      gap: 14px;
    }
    .info-item {
      background: var(--bg);
      border-radius: 16px;
      padding: 20px 22px;
    }
    .info-item dt {
      font-size: 13px;
      font-weight: 700;
      color: var(--blue-600);
      margin-bottom: 4px;
    }
    .info-item dd { font-size: 16px; font-weight: 600; color: var(--navy-900); white-space: pre-line; }
    .map-wrap {
      min-height: 360px;
      border-radius: 22px;
      overflow: hidden;
      border: 1px solid var(--line);
      background: #dbe4ee;
    }
    .map-wrap iframe { width: 100%; height: 100%; min-height: 360px; border: 0; }

    /* 푸터 */
    .site-footer {
      background: var(--navy-900);
      color: rgba(255,255,255,0.78);
      padding: 48px 24px 28px;
    }
    .footer-inner {
      max-width: var(--max);
      margin: 0 auto;
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr;
      gap: 32px;
    }
    .footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
    .footer-brand .brand-mark {
      width: 52px;
      height: 52px;
      box-shadow: none;
    }
    .footer-brand strong { color: #fff; font-size: 18px; }
    .site-footer h4 { color: #fff; margin-bottom: 12px; }
    .site-footer ul { list-style: none; display: grid; gap: 8px; }
    .site-footer [data-bind="hours"] { white-space: pre-line; }
    .copyright {
      max-width: var(--max);
      margin: 32px auto 0;
      padding-top: 18px;
      border-top: 1px solid rgba(255,255,255,0.08);
      font-size: 13px;
      color: rgba(255,255,255,0.45);
    }

    /* 관리자 진입 버튼 */
    .admin-fab {
      position: fixed;
      right: 22px;
      bottom: 22px;
      z-index: 60;
      width: 58px;
      height: 58px;
      border: 0;
      border-radius: 50%;
      background: var(--navy-900);
      color: #fff;
      cursor: pointer;
      box-shadow: 0 12px 30px rgba(11, 28, 51, 0.35);
      display: grid;
      place-items: center;
    }
    .admin-fab:hover { background: var(--navy-700); }
    .admin-fab-tip {
      position: absolute;
      right: 68px;
      white-space: nowrap;
      background: var(--navy-900);
      color: #fff;
      font-size: 12px;
      font-weight: 700;
      padding: 7px 10px;
      border-radius: 8px;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.2s ease;
    }
    .admin-fab:hover .admin-fab-tip { opacity: 1; }

    /* 관리자 패널 */
    .admin-overlay {
      position: fixed;
      inset: 0;
      background: rgba(6, 16, 28, 0.46);
      z-index: 80;
      opacity: 0;
      visibility: hidden;
      transition: 0.25s ease;
    }
    .admin-overlay.open { opacity: 1; visibility: visible; }
    .admin-panel {
      position: absolute;
      top: 0;
      right: 0;
      width: min(520px, 100%);
      height: 100%;
      background: #fff;
      box-shadow: -20px 0 50px rgba(0,0,0,0.18);
      display: flex;
      flex-direction: column;
      transform: translateX(24px);
      transition: transform 0.25s ease;
    }
    .admin-overlay.open .admin-panel { transform: none; }
    .admin-head {
      padding: 22px 22px 16px;
      border-bottom: 1px solid var(--line);
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      gap: 12px;
    }
    .admin-head h2 { font-size: 22px; color: var(--navy-900); letter-spacing: -0.03em; }
    .admin-head p { color: var(--muted); font-size: 13px; margin-top: 4px; }
    .icon-btn {
      width: 40px;
      height: 40px;
      border: 1px solid var(--line);
      background: #fff;
      border-radius: 10px;
      cursor: pointer;
      font-size: 20px;
    }
    .admin-body {
      flex: 1;
      overflow: auto;
      padding: 18px 22px 120px;
    }
    .admin-section {
      background: var(--bg);
      border-radius: 16px;
      padding: 18px;
      margin-bottom: 14px;
    }
    .sync-note {
      color: var(--muted);
      font-size: 13px;
      line-height: 1.55;
      margin: 0 0 12px;
    }
    .token-link {
      display: inline-block;
      margin-top: 8px;
      font-size: 13px;
      font-weight: 700;
      color: var(--navy-700);
    }
    .sync-status {
      margin-top: 8px;
      font-size: 12px;
      font-weight: 700;
    }
    .sync-status.is-on { color: #1f7a4d; }
    .sync-status.is-off { color: #b45309; }
    .admin-section h3 {
      font-size: 15px;
      color: var(--navy-900);
      margin-bottom: 14px;
    }
    .field { margin-bottom: 12px; }
    .field label {
      display: block;
      font-size: 13px;
      font-weight: 700;
      color: var(--navy-700);
      margin-bottom: 6px;
    }
    .field .hint { font-weight: 500; color: var(--muted); margin-left: 6px; }
    .field input, .field textarea {
      width: 100%;
      border: 1px solid var(--line);
      background: #fff;
      border-radius: 12px;
      padding: 12px 14px;
      font-size: 15px;
      color: var(--ink);
      outline: none;
    }
    .field textarea { min-height: 88px; resize: vertical; }
    .field input:focus, .field textarea:focus { border-color: var(--blue-500); box-shadow: 0 0 0 3px rgba(37,99,235,0.12); }
    .logo-upload {
      display: flex;
      align-items: center;
      gap: 14px;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 14px;
      padding: 12px;
    }
    .logo-preview {
      width: 64px;
      height: 64px;
      border-radius: 12px;
      object-fit: contain;
      background: #000;
      flex-shrink: 0;
    }
    .logo-upload-actions { display: grid; gap: 8px; }
    .file-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 40px;
      padding: 0 14px;
      border-radius: 10px;
      background: var(--navy-900);
      color: #fff;
      font-size: 13px;
      font-weight: 700;
      cursor: pointer;
    }
    .file-btn input { display: none; }
    .text-btn {
      border: 0;
      background: none;
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
      cursor: pointer;
      text-align: left;
      padding: 0;
    }
    .admin-foot {
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      padding: 16px 22px;
      background: #fff;
      border-top: 1px solid var(--line);
      display: flex;
      gap: 10px;
    }
    .save-btn, .reset-btn {
      min-height: 48px;
      border: 0;
      border-radius: 12px;
      font-weight: 800;
      cursor: pointer;
    }
    .save-btn {
      flex: 1;
      background: var(--navy-900);
      color: #fff;
    }
    .reset-btn {
      width: 120px;
      background: #eef2f6;
      color: var(--navy-800);
    }
    .toast {
      position: fixed;
      left: 50%;
      bottom: 32px;
      transform: translateX(-50%) translateY(16px);
      background: var(--navy-900);
      color: #fff;
      padding: 12px 18px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 700;
      opacity: 0;
      pointer-events: none;
      z-index: 90;
      transition: 0.25s ease;
    }
    .toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

    @media (max-width: 960px) {
      .hero-inner, .about-grid, .feature-grid, .curriculum-grid, .contact-grid, .footer-inner, .program-tabs {
        grid-template-columns: 1fr;
      }
      .hero { min-height: auto; padding-top: 36px; padding-bottom: 0; }
      .hero-inner { padding-top: 28px; }
      .nav-wrap {
        position: absolute;
        top: var(--header-h);
        left: 0;
        right: 0;
        background: #fff;
        border-bottom: 1px solid var(--line);
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 12px 16px 16px;
      }
      .nav-wrap.open { display: flex; }
      .nav-list { flex-direction: column; align-items: stretch; }
      .header-cta { margin: 8px 0 0; justify-content: center; }
      .menu-toggle { display: block; }
      .brand-name { font-size: 15px; max-width: calc(100vw - 140px); }
      .hero h1 { word-break: keep-all; }
      section { padding: 72px 18px; }
      .footer-inner { gap: 24px; }
      .admin-fab { right: 16px; bottom: 16px; }
      .has-sub .sub-nav {
        position: static;
        display: grid;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: 0;
        padding: 0 0 8px 12px;
      }
      .hero h1 { word-break: keep-all; }
      section { padding: 72px 18px; }
      .footer-inner { gap: 24px; }
      .admin-fab { right: 16px; bottom: 16px; }
    }

    /* 좁은 화면에서는 패널 제목과 세 칸이 한 줄로 읽히게 맞춥니다. */
    @media (max-width: 640px) {
      .hero-inner {
        padding-left: 16px;
        padding-right: 16px;
        padding-bottom: 40px;
        gap: 28px;
      }
      .hero-panel {
        padding: 18px 12px 14px;
        border-radius: 22px;
      }
      .hero-panel-title {
        font-size: clamp(18px, 6.1vw, 26px);
        white-space: nowrap;
        letter-spacing: -0.04em;
        margin-bottom: 6px;
      }
      .hero-panel p {
        font-size: 13px;
        line-height: 1.55;
      }
      .hero-stats {
        gap: 6px;
        margin-top: 16px;
      }
      .stat {
        padding: 12px 2px 10px;
        border-radius: 12px;
      }
      .stat strong {
        font-size: clamp(14px, 4.4vw, 18px);
        white-space: nowrap;
        letter-spacing: -0.07em;
      }
      .stat span {
        margin-top: 4px;
        font-size: clamp(10px, 2.8vw, 11px);
        letter-spacing: -0.04em;
      }
    }

    /* 커리큘럼 드롭다운 */
    .has-sub { position: relative; }
    .sub-nav {
      position: absolute;
      top: calc(100% + 6px);
      left: 0;
      min-width: 140px;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 12px;
      padding: 8px;
      list-style: none;
      box-shadow: var(--shadow);
      opacity: 0;
      visibility: hidden;
      transform: translateY(6px);
      transition: 0.18s ease;
      z-index: 20;
    }
    .has-sub:hover .sub-nav,
    .has-sub:focus-within .sub-nav { opacity: 1; visibility: visible; transform: none; }
    .sub-nav a { font-size: 14px; }
    .nav-list a.is-active { color: var(--navy-900); background: var(--bg); }

    .brand-dept {
      margin-left: 4px;
      padding-left: 12px;
      border-left: 1px solid var(--line);
      color: var(--muted);
      font-size: 14px;
      font-weight: 700;
      white-space: nowrap;
    }

    .program-tab, .course-card {
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .program-tab:hover, a.course-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow);
    }
    a.course-card { color: inherit; display: block; }
    .course-more {
      display: inline-flex;
      margin-top: 20px;
      font-size: 13px;
      font-weight: 700;
      color: var(--gold-soft);
    }

    /* 학년 페이지 배너 슬라이드 */
    .dept-hero {
      position: relative;
      min-height: 430px;
      padding: 0;
      background: var(--navy-950);
      color: #fff;
      overflow: hidden;
    }
    .slider { position: relative; min-height: 430px; }
    .slide {
      position: absolute;
      inset: 0;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.45s ease;
      background:
        radial-gradient(900px 400px at 85% 20%, rgba(59, 130, 246, 0.2), transparent 55%),
        linear-gradient(160deg, #071222 0%, #0e2744 55%, #123056 100%);
    }
    .slide:nth-child(2) {
      background:
        radial-gradient(800px 380px at 12% 80%, rgba(196, 163, 90, 0.16), transparent 50%),
        linear-gradient(160deg, #0a1730 0%, #123056 100%);
    }
    .slide:nth-child(3) {
      background:
        radial-gradient(700px 360px at 70% 70%, rgba(37, 99, 235, 0.2), transparent 52%),
        linear-gradient(160deg, #081526 0%, #1a3a5c 100%);
    }
    .slide.is-active { opacity: 1; pointer-events: auto; }
    .slide-inner {
      max-width: var(--max);
      margin: 0 auto;
      min-height: 430px;
      padding: 64px 72px 80px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .slide-copy .eyebrow { margin-bottom: 14px; }
    .slide-copy h1 {
      font-size: clamp(30px, 4vw, 48px);
      line-height: 1.25;
      letter-spacing: -0.04em;
      margin-bottom: 14px;
      word-break: keep-all;
    }
    .slide-copy p {
      max-width: 560px;
      color: rgba(255,255,255,0.78);
      margin-bottom: 28px;
    }
    .slide-note {
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      background: rgba(196, 163, 90, 0.95);
      color: var(--navy-950);
      font-size: 14px;
      font-weight: 800;
      text-align: center;
      padding: 12px 16px;
    }
    .slider-btn {
      position: absolute;
      top: 50%;
      transform: translateY(-50%);
      width: 46px;
      height: 46px;
      border: 1px solid rgba(255,255,255,0.2);
      background: rgba(7, 18, 34, 0.35);
      color: #fff;
      border-radius: 50%;
      cursor: pointer;
      z-index: 2;
      font-size: 20px;
    }
    .slider-btn.prev { left: 18px; }
    .slider-btn.next { right: 18px; }
    .slider-dots {
      position: absolute;
      left: 50%;
      bottom: 52px;
      transform: translateX(-50%);
      display: flex;
      gap: 8px;
      z-index: 2;
    }
    .slider-dots button {
      width: 8px;
      height: 8px;
      border: 0;
      border-radius: 50%;
      background: rgba(255,255,255,0.35);
      cursor: pointer;
    }
    .slider-dots button.is-active { background: var(--gold); width: 22px; border-radius: 999px; }

    /* 시간표 / 공지: 기본은 한 줄, 넓은 화면에서만 2단 */
    .dept-board {
      padding: 56px 24px 96px;
      background: #fff;
    }
    .dept-board-inner { max-width: var(--max); margin: 0 auto; }
    .board-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 36px;
    }
    @media (min-width: 961px) {
      .board-grid {
        grid-template-columns: 1fr 1fr;
        gap: 72px;
      }
    }
    .board-head {
      display: flex;
      align-items: baseline;
      justify-content: space-between;
      gap: 12px;
      padding-bottom: 14px;
      margin-bottom: 4px;
      border-bottom: 2px solid var(--navy-900);
    }
    .board-head h2 {
      font-size: 22px;
      color: var(--navy-900);
      letter-spacing: -0.03em;
    }
    .more-link {
      font-size: 13px;
      font-weight: 700;
      color: var(--muted);
    }
    .more-link:hover { color: var(--navy-900); }
    .board-list { list-style: none; }
    .board-list li { border-bottom: 1px solid var(--line); }
    .board-list button,
    .board-list a {
      width: 100%;
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 18px 2px;
      border: 0;
      background: none;
      text-align: left;
      font-size: 16px;
      font-weight: 600;
      color: var(--navy-800);
      cursor: pointer;
    }
    .board-list button:hover,
    .board-list a:hover { color: var(--blue-600); }
    .notice-title {
      flex: 1;
      min-width: 0;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }
    .notice-date {
      margin-left: auto;
      flex-shrink: 0;
      font-size: 13px;
      font-weight: 500;
      color: var(--muted);
    }
    .badge-hot {
      flex-shrink: 0;
      background: #fdecee;
      color: #c23030;
      font-size: 12px;
      font-weight: 800;
      padding: 3px 8px;
      border-radius: 6px;
    }
    .schedule-panel {
      display: none;
      margin-top: 8px;
      background: var(--bg);
      border-radius: 18px;
      padding: 28px;
    }
    .schedule-panel.is-open { display: block; }
    /* PC에서는 시간표·공지 아래 전체 너비로 시간표를 엽니다. */
    @media (min-width: 961px) {
      .schedule-panel {
        grid-column: 1 / -1;
        margin-top: 8px;
      }
    }
    .schedule-panel h3 {
      font-size: 18px;
      color: var(--navy-900);
      margin-bottom: 6px;
    }
    .schedule-panel p { color: var(--muted); margin-bottom: 16px; }
    .schedule-table {
      width: 100%;
      border-collapse: collapse;
      background: #fff;
      border-radius: 12px;
      overflow: hidden;
    }
    .schedule-table th,
    .schedule-table td {
      padding: 12px 14px;
      border-bottom: 1px solid var(--line);
      text-align: left;
      font-size: 14px;
    }
    .schedule-table th {
      background: var(--navy-900);
      color: #fff;
      font-weight: 700;
    }

    .notice-modal {
      position: fixed;
      inset: 0;
      background: rgba(6, 16, 28, 0.46);
      z-index: 85;
      display: none;
      align-items: center;
      justify-content: center;
      padding: 20px;
    }
    .notice-modal.is-open { display: flex; }
    .notice-card {
      width: min(520px, 100%);
      background: #fff;
      border-radius: 18px;
      padding: 28px;
    }
    .notice-card h3 { font-size: 20px; color: var(--navy-900); margin: 8px 0 10px; }
    .notice-card p { color: var(--muted); white-space: pre-line; }
    .field-check { display: flex; align-items: center; gap: 8px; font-size: 14px; }
    .notice-main {
      display: flex;
      align-items: center;
      gap: 8px;
      min-width: 0;
      flex: 1;
    }
    .schedule-table-wrap { width: 100%; overflow-x: auto; }

    /* 모바일: 학년 페이지를 한 줄 세로 레이아웃으로 재배치합니다. */
    @media (max-width: 960px) {
      .brand-dept {
        display: inline;
        margin-left: 2px;
        padding-left: 8px;
        font-size: 13px;
      }
      .brand-name { max-width: calc(100vw - 168px); }

      /* 배너는 고정 높이 대신 내용만큼 늘어나게 합니다. */
      .dept-hero,
      .slider {
        min-height: 0;
        padding: 0;
      }
      .slide {
        position: relative;
        inset: auto;
        display: none;
        opacity: 1;
        pointer-events: none;
        min-height: 0;
      }
      .slide.is-active {
        display: block;
        pointer-events: auto;
      }
      .slide-inner {
        min-height: 0;
        padding: 32px 20px 36px;
        justify-content: flex-start;
      }
      .slide-copy h1 {
        font-size: 24px;
        line-height: 1.35;
        margin-bottom: 10px;
      }
      .slide-copy p {
        max-width: none;
        font-size: 14px;
        line-height: 1.6;
        margin-bottom: 16px;
      }
      .slide-inner .btn-primary {
        min-height: 44px;
        padding: 0 18px;
        font-size: 14px;
      }
      .slide-note {
        position: relative;
        left: auto;
        right: auto;
        bottom: auto;
        font-size: 12px;
        font-weight: 700;
        line-height: 1.5;
        padding: 12px 16px;
        word-break: keep-all;
      }
      .slider-btn { display: none; }
      /* 점 표시는 골드 안내 바 위에 올려 배너 하단이 한 줄로 끝나게 합니다. */
      .slider-dots {
        position: absolute;
        left: 50%;
        bottom: 48px;
        transform: translateX(-50%);
        justify-content: center;
        padding: 0;
        background: transparent;
      }

      .dept-board { padding: 24px 18px 56px; }
      /* 모바일: 시간표 클릭 시 공지 위(시간표 목록 바로 아래)에 패널이 열립니다. */
      .timetable-col { order: 1; }
      .schedule-panel { order: 2; margin-top: 4px; }
      .notice-col { order: 3; }
      .board-head {
        flex-wrap: nowrap;
        padding-bottom: 10px;
        border-bottom-width: 1px;
      }
      .board-head h2 {
        font-size: 20px;
        white-space: nowrap;
      }
      .more-link { white-space: nowrap; }
      .board-list button,
      .board-list a {
        padding: 16px 0;
        font-size: 16px;
      }

      /* 공지: 뱃지+제목 / 날짜는 아래 오른쪽 — 함영원 모바일과 같은 구조 */
      .notice-item {
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
      }
      .notice-main {
        width: 100%;
        flex: none;
      }
      .notice-date {
        width: 100%;
        margin-left: 0;
        text-align: right;
        padding-top: 0;
      }
      .schedule-panel { padding: 18px; }
      .schedule-table th,
      .schedule-table td {
        padding: 10px 8px;
        font-size: 13px;
        white-space: nowrap;
      }
    }