*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
  :root { --w:#ffffff; --cream:#f4efe9; --soft:#f8f5f2; --dark:#1c1b19; --mid:#6b6762; --light:#a5a09a; --line:#e3dcd5; --gold:#BC8B55; }
  html { scroll-behavior: smooth; }
  body { font-family: 'Pretendard', -apple-system, sans-serif; color: var(--dark); background: var(--w); -webkit-font-smoothing: antialiased; line-height: 1; overflow-x: hidden; }
  a { text-decoration: none; color: inherit; }
  ul { list-style: none; }

  /* ─── Header ─── */
  header { position: fixed; inset: 0 0 auto 0; z-index: 200; height: 64px; padding: 0 52px; display: flex; align-items: center; justify-content: space-between; background: rgba(255,255,255,.97); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(0,0,0,.07); }
  .logo { display: flex; align-items: center; }
  .logo img { height: 36px; width: auto; display: block; }
  header nav { display: flex; gap: 32px; }
  header nav a { font-size: 13px; letter-spacing: .02em; transition: color .2s; }
  header nav a:hover, header nav a.active { color: var(--gold); }
  .h-right { display: flex; align-items: center; gap: 16px; }
  .h-login { font-size: 12px; color: var(--mid); }
  .h-book { font-size: 11.5px; letter-spacing: .06em; background: var(--dark); color: #fff; padding: 9px 22px; border-radius: 100px; transition: background .25s; }
  .h-book:hover { background: var(--gold); }

  /* ─── Intro ─── */
  .pm-intro { padding: 92px 80px 50px; margin-top: 64px; max-width: 1500px; margin-left: auto; margin-right: auto; text-align: left; box-sizing: border-box; }
  .pm-label { font-family: 'Montserrat', sans-serif; font-size: 21px; font-weight: 700; color: var(--gold); display: block; margin-bottom: 18px; letter-spacing: .06em; }
  .pm-intro h1 { font-family: 'Montserrat', sans-serif; font-size: clamp(36px,5.56vw,80px); font-weight: 700; line-height: 1; margin-bottom: 20px; letter-spacing: -.01em; }
  .pm-intro p { font-size: 24px; color: var(--mid); line-height: 1.4; }

  /* ─── Two-column layout ─── */
  .detail-wrap { display: flex; max-width: 1500px; margin: 0 auto; padding: 0 80px; gap: 76px; align-items: flex-start; box-sizing: border-box; }

  /* ─── Sidebar ─── */
  .detail-sidebar {
  width: 400px; flex-shrink: 0; height: fit-content;
    display: flex; flex-direction: column; gap: 14px;
  padding: 0;
  }
  .sidebar-promo { border-bottom: none; }
  .sidebar-promo-btn {
  width: 100%; padding: 28px 28px 24px; text-align: left;
    display: flex; align-items: flex-start; justify-content: space-between;
    cursor: pointer; background: var(--w); border: 1.5px solid var(--line);
    border-radius: 12px;
    font-family: 'Pretendard', sans-serif;
    transition: border-color .3s, background .3s, box-shadow .3s;
    gap: 16px;
  }
  .sidebar-promo-btn:hover { border-color: rgba(188,139,85,.45); box-shadow: 0 2px 12px rgba(0,0,0,.04); }
  .sidebar-promo-btn.active { border-color: var(--gold); box-shadow: 0 4px 20px rgba(188,139,85,.12); background: var(--w); }
  .sidebar-promo-info { flex: 1; min-width: 0; }
  .sidebar-promo-title {
    font-size: 20px; font-weight: 600; line-height: 1.5; display: block; color: var(--dark);
    padding-bottom: 12px; margin-bottom: 12px;
    border-bottom: 1.5px dotted var(--line);
  }
.sidebar-promo-sub { font-size: 14.5px; color: var(--light); display: block; line-height: 1.6; }
  .sidebar-promo-btn.active .sidebar-promo-title { color: var(--dark); }
  .sidebar-promo-btn.active .sidebar-promo-sub { color: var(--mid); }
  .sidebar-arrow { font-size: 18px; color: var(--line); flex-shrink: 0; margin-top: 4px; transition: color .2s; }
  .sidebar-promo-btn.active .sidebar-arrow { color: var(--gold); }

  /* ─── Detail content ─── */
  .detail-content { flex: 1 1 auto; max-width: 860px; padding: 0 0 80px; min-width: 0; }

  /* ─── Promo banner card ─── */
  .promo-banner {
    position: relative; overflow: hidden; margin-bottom: 36px;
    border-radius: 8px;
    background: #fff;
  }
  .banner-thumb {
    width: 100%; display: block;
  }
  .banner-overlay { display: none; }
  .promo-banner.no-img { background: #fff; aspect-ratio: 16 / 9; }
  .promo-banner.no-img .banner-thumb { display: none; }
  .promo-banner.no-img .banner-overlay {
    display: flex; flex-direction: column; justify-content: flex-end;
    position: absolute; inset: 0;
    background: none;
    padding: 36px 44px;
  }
  .promo-banner.no-img .banner-meta span { color: var(--mid); }
  .promo-banner.no-img .banner-tag,
  .promo-banner.no-img .banner-title { color: var(--dark); }
  .promo-banner.no-img .banner-en { color: var(--mid); }
  .banner-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
  .banner-meta img { height: 22px; width: auto; }
  .banner-meta span { font-size: 11px; letter-spacing: .08em; color: var(--mid); }
  .banner-period { font-size: 12px; color: var(--gold); font-weight: 600; letter-spacing: .08em; margin-bottom: 10px; }
  .banner-tag { font-family: 'Montserrat', sans-serif; font-size: 18px; font-weight: 700; color: var(--dark); margin-bottom: 4px; }
  .banner-title { font-size: 28px; font-weight: 700; line-height: 1.35; margin-bottom: 6px; white-space: pre-line; color: var(--dark); }
  .banner-en { font-size: 13px; color: var(--mid); font-style: italic; }

  /* ─── Options ─── */
  .options-label { font-size: 13px; color: var(--light); letter-spacing: .06em; text-transform: uppercase; margin-bottom: 16px; }
  .options-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 24px; }
  .option-card { border: 1.5px solid var(--line); padding: 22px; cursor: pointer; position: relative; transition: border-color .2s, background .2s; }
  .option-card:hover { border-color: #c8b898; }
  .option-card.selected { border-color: var(--gold); background: rgba(188,139,85,.04); }
  .option-checkbox { position: absolute; top: 18px; right: 18px; width: 22px; height: 22px; border: 2px solid var(--line); border-radius: 4px; display: flex; align-items: center; justify-content: center; transition: all .2s; }
  .option-card.selected .option-checkbox { border-color: var(--gold); background: var(--gold); }
  .option-check-mark { display: none; }
  .option-card.selected .option-check-mark { display: block; }
  .option-badge { font-size: 11px; color: var(--gold); font-weight: 500; margin-bottom: 10px; line-height: 1.5; padding-right: 28px; }
.option-name { font-size: 21px; font-weight: 700; margin-bottom: 10px; padding-right: 28px; line-height: 1.4; }
.option-desc { font-size: 15.5px; color: var(--mid); line-height: 1.8; margin-bottom: 16px; white-space: pre-line; }
  .option-original { font-size: 13px; color: var(--light); text-decoration: line-through; margin-bottom: 4px; }
  .option-price { font-size: 22px; font-weight: 700; }
  .option-price em { font-size: 14px; font-style: normal; font-weight: 400; }

  /* ─── Buttons ─── */
  .btn-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
  .btn-cart { padding: 17px; border: 2px solid var(--dark); background: #fff; font-family: 'Pretendard', sans-serif; font-size: 15px; font-weight: 600; cursor: pointer; transition: background .2s; }
  .btn-cart:hover { background: var(--soft); }
  .btn-reserve-direct { padding: 17px; background: var(--dark); color: #fff; border: none; font-family: 'Pretendard', sans-serif; font-size: 15px; font-weight: 600; cursor: pointer; transition: background .2s; }
  .btn-reserve-direct:hover { background: #333; }

  /* ─── Cart panel ─── */
  .cart-panel {
    position: fixed;
    left: 50%;
    bottom: 0;
    transform: translate(-50%, 120%);
    width: min(1220px, 100vw);
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 20px 20px 0 0;
    border-bottom: none;
    padding: 18px 20px 20px;
    box-shadow: 0 16px 40px rgba(0,0,0,.18);
    z-index: 1300;
    opacity: 0;
    pointer-events: none;
    transition: transform .42s cubic-bezier(.16,1,.3,1), opacity .35s cubic-bezier(.16,1,.3,1);
  }
  .cart-panel.show {
    transform: translate(-50%, 0);
    opacity: 1;
    pointer-events: auto;
  }
  .cart-sheet-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
  .cart-sheet-total-wrap { display: flex; align-items: center; gap: 8px; }
  .cart-sheet-icon { color: #1c1b19; display: inline-flex; align-items: center; justify-content: center; }
  .cart-sheet-total { font-size: 20px; font-weight: 700; line-height: 1; letter-spacing: -.01em; }
  .cart-sheet-close {
    width: 30px; height: 30px; border: none; background: transparent;
    font-size: 20px; color: var(--light); cursor: pointer; line-height: 1; margin-top: -4px;
  }
  .cart-sheet-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 20px; align-items: stretch; }
  .cart-sheet-left { min-width: 0; }
  .cart-sheet-right { background: var(--soft); border-radius: 14px; padding: 16px; }
  .cart-total-orig { font-size: 14px; color: var(--light); text-decoration: line-through; }
  .cart-all-label { margin-top: 10px; font-size: 20px; font-weight: 700; color: var(--dark); letter-spacing: -.01em; }
  .cart-items-list { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin: 14px 0; }
  .cart-item-row { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; align-items: center; padding: 13px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
  .cart-item-row:last-child { border-bottom: none; }
  .cart-item-name { color: var(--dark); font-weight: 500; display: inline-flex; align-items: center; gap: 7px; font-size: 15px; }
  .cart-item-check {
    width: 16px; height: 16px; border-radius: 3px;
    background: var(--gold); border: 1px solid var(--gold);
    display: inline-flex; align-items: center; justify-content: center;
    flex-shrink: 0;
  }
  .cart-item-price { color: var(--mid); font-weight: 600; }
  .cart-item-remove {
    border: none; background: transparent; color: var(--light);
    font-size: 20px; cursor: pointer; line-height: 1; padding: 0 2px;
    transition: color .2s ease;
  }
  .cart-item-remove:hover { color: #c45a5a; }
  .cart-final-row { display: flex; justify-content: space-between; align-items: flex-end; margin-top: 4px; }
  .cart-final-label { font-size: 20px; color: var(--dark); font-weight: 700; letter-spacing: -.01em; }
  .cart-final-right { text-align: right; }
  .cart-final-price { font-size: 34px; font-weight: 700; display: block; line-height: 1; letter-spacing: -.01em; }
  .cart-vat { font-size: 11px; color: var(--light); margin-top: 4px; display: block; }
  .cart-note-list {
    list-style: none;
    margin: 14px 0 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
  }
  .cart-note-list li {
    font-size: 11px;
    color: #7f7972;
    line-height: 1.5;
    position: relative;
    padding-left: 10px;
  }
  .cart-note-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    top: 0;
    color: #a39b92;
  }
  .btn-full-reserve { width: 100%; padding: 16px; background: var(--gold); color: #fff; border: none; font-family: 'Pretendard', sans-serif; font-size: 20px; font-weight: 700; cursor: pointer; margin-top: 16px; transition: opacity .2s; letter-spacing: .04em; border-radius: 8px; }
  .btn-full-reserve:hover { opacity: .88; }

  /* ─── Brochure image ─── */
  .brochure-sec { margin-top: 28px; width: min(100%, 860px); }
  .brochure-sec img { width: 860px; max-width: 100%; display: block; }

  /* ─── Contact ─── */
  .contact { padding: 88px 80px; background: #fff; }
  .contact-grid { display: grid; grid-template-columns: 1fr 1.1fr 1.2fr; gap: 60px; align-items: start; max-width: 1500px; margin: 0 auto; }
  .contact-left h3 { font-size: 36px; font-weight: 700; margin-bottom: 28px; }
  .c-phone { font-size: 28px; font-weight: 400; letter-spacing: .02em; margin-bottom: 28px; }
  .c-phone span { font-size: 13px; font-weight: 400; color: var(--light); display: block; margin-bottom: 6px; letter-spacing: .04em; }
  .c-rows { border-top: 1px solid var(--line); }
  .c-row { display: grid; grid-template-columns: 68px 1fr; gap: 16px; padding: 15px 0; border-bottom: 1px solid var(--line); }
  .c-lbl { font-size: 11.5px; color: var(--light); padding-top: 1px; }
  .c-val { font-size: 13px; color: var(--mid); line-height: 1.9; }
  .c-form { display: flex; flex-direction: column; gap: 10px; }
  .c-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
  .c-field { display: flex; flex-direction: column; gap: 6px; }
  .c-field label { font-size: 11.5px; color: var(--light); letter-spacing: .04em; }
  .c-field label span { color: #c00; }
  .c-field input, .c-field textarea { width: 100%; padding: 11px 14px; border: 1px solid var(--line); background: #fafafa; font-family: 'Pretendard', sans-serif; font-size: 13px; color: var(--dark); outline: none; transition: border .2s; resize: none; }
  .c-field input::placeholder, .c-field textarea::placeholder { color: #bbb; }
  .c-field input:focus, .c-field textarea:focus { border-color: var(--dark); background: #fff; }
  .c-field textarea { height: 110px; }
  .c-agree { display: flex; align-items: center; justify-content: space-between; padding: 12px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin-top: 4px; }
  .c-agree-left { display: flex; align-items: center; gap: 8px; }
  .c-agree input[type=checkbox] { width: 14px; height: 14px; accent-color: var(--dark); cursor: pointer; }
  .c-agree-txt { font-size: 12px; color: var(--mid); }
  .c-agree-more { font-size: 11.5px; color: var(--light); border-bottom: 1px solid var(--line); cursor: pointer; }
  .c-submit { width: 100%; padding: 15px; background: var(--dark); color: #fff; font-family: 'Pretendard', sans-serif; font-size: 13px; letter-spacing: .08em; border: none; cursor: pointer; transition: background .2s; margin-top: 4px; }
  .c-submit:hover { background: #333; }
  .map-box { height: 100%; min-height: 320px; }

  /* ─── Footer ─── */
  footer { background: var(--dark); color: rgba(255,255,255,.56); padding: 36px 52px 28px; }
  .ft-top { display: flex; justify-content: space-between; align-items: center; padding-bottom: 20px; margin-bottom: 16px; border-bottom: 1px solid rgba(255,255,255,.1); }
  .ft-logo { font-size: 16px; font-weight: 400; letter-spacing: .1em; color: rgba(255,255,255,.82); }
  .ft-nav { display: flex; gap: 24px; }
  .ft-nav a { font-size: 12px; color: rgba(255,255,255,.56); transition: color .2s; }
  .ft-nav a:hover { color: rgba(255,255,255,.82); }
  .ft-copy { font-size: 11px; }

  /* ─── > 1400px padding ─── */
  @media (max-width: 1400px) {
    .pm-intro { padding-left: 40px; padding-right: 40px; }
    .detail-wrap { padding-left: 40px; padding-right: 40px; }
  }

  /* ─── Tablet ─── */
  @media (max-width: 1024px) {
    .pm-intro { padding: 72px 32px 36px; }
    .pm-label { font-size: 20px; }
    .pm-intro p { font-size: 18px; }

    .detail-wrap { padding: 0 32px; }
    .detail-wrap { gap: 24px; }
    .detail-sidebar { width: 280px; padding-right: 0; gap: 12px; }
    .sidebar-promo-btn { padding: 22px 22px 18px; }
    .sidebar-promo-title { font-size: 14px; }

    .detail-content { max-width: none; padding: 0 0 60px; }
    .banner-title { font-size: 24px; }
    .banner-tag { font-size: 20px; }

    .option-card { padding: 20px; }
    .option-name { font-size: 14px; }
    .option-desc { font-size: 12px; }
    .option-price { font-size: 20px; }
    .option-price em { font-size: 13px; }

    .btn-cart, .btn-reserve-direct { padding: 15px; font-size: 14px; }
    .cart-final-price { font-size: 26px; }
    .btn-full-reserve { padding: 16px; font-size: 15px; }

    .contact { padding: 64px 32px; }
    .contact-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
    .contact-left h3 { font-size: 28px; }
    .c-phone { font-size: 22px; }
    .map-box { min-height: 260px; }
  }

  /* ─── Tablet narrow / phablet ─── */
  @media (max-width: 900px) {
    .detail-wrap { flex-direction: column; gap: 0; }
    .detail-sidebar {
      width: 100%;
      position: static;
      padding: 2px 2px 16px;
      flex-direction: row;
      overflow-x: auto;
      overflow-y: hidden;
      -webkit-overflow-scrolling: touch;
      scrollbar-width: none;
      scroll-padding-left: 2px;
      cursor: grab;
      user-select: none;
    }
    .detail-sidebar.is-dragging {
      cursor: grabbing;
    }
    .detail-sidebar.is-dragging .sidebar-promo-btn {
      pointer-events: none;
    }
    .detail-sidebar::-webkit-scrollbar { display: none; }
    .sidebar-promo { flex-shrink: 0; }
    .sidebar-promo-btn {
      min-width: 220px; flex-shrink: 0;
      padding: 20px 20px 18px;
      border-radius: 10px;
    }
    .sidebar-promo-title { font-size: 14px; padding-bottom: 10px; margin-bottom: 10px; }
    .sidebar-promo-sub { font-size: 11px; }

    .detail-content { padding: 0 0 60px; }
    .options-grid { grid-template-columns: 1fr 1fr; }
  }

  /* ─── Mobile ─── */
  @media (max-width: 768px) {
    header { padding: 0 20px; }
    .pm-intro { padding: 24px 20px 18px; }
    .pm-label { font-size: 13px; margin-bottom: 10px; }
    .pm-intro h1 { font-size: 30px; margin-bottom: 12px; }
    .pm-intro p { font-size: 14px; line-height: 1.55; }

    .detail-wrap { padding: 0 20px; }
    .detail-sidebar { gap: 10px; padding: 2px 2px 14px; }
    .sidebar-promo-btn { min-width: 180px; padding: 16px 16px 14px; border-radius: 10px; }
    .sidebar-promo-title { font-size: 13px; padding-bottom: 10px; margin-bottom: 10px; }
    .sidebar-promo-sub { font-size: 10px; }
    .sidebar-arrow { font-size: 20px; }

    .detail-content { padding: 0 0 48px; }

    .promo-banner { border-radius: 6px; aspect-ratio: auto; margin-bottom: 22px; }
    .banner-thumb { height: auto; }
    .banner-overlay { padding: 20px; }
    .banner-meta img { height: 18px; }
    .banner-meta span { font-size: 10px; }
    .banner-period { font-size: 11px; margin-bottom: 8px; }
    .banner-tag { font-size: 13px; }
    .banner-title { font-size: 18px; line-height: 1.35; }
    .banner-en { font-size: 11px; }

    .options-label { font-size: 12px; margin-bottom: 10px; }
    .options-grid { grid-template-columns: 1fr; gap: 12px; margin-bottom: 20px; }
    .option-card { padding: 18px; }
    .option-checkbox { top: 14px; right: 14px; width: 20px; height: 20px; }
    .option-badge { font-size: 10px; margin-bottom: 8px; }
    .option-name { font-size: 14px; margin-bottom: 8px; }
    .option-desc { font-size: 12px; line-height: 1.7; margin-bottom: 12px; }
    .option-original { font-size: 12px; }
    .option-price { font-size: 18px; }
    .option-price em { font-size: 12px; }

    .btn-row { grid-template-columns: 1fr 1fr; gap: 10px; }
    .btn-cart { padding: 14px; font-size: 13px; border-width: 1.5px; }
    .btn-reserve-direct { padding: 14px; font-size: 13px; }

    .cart-panel { padding: 18px; margin-top: 20px; }
    .cart-panel {
      width: 100vw;
      border-radius: 16px 16px 0 0;
      padding: 14px;
      bottom: 0;
    }
    .cart-sheet-total { font-size: 18px; }
    .cart-sheet-icon svg { width: 16px; height: 16px; }
    .cart-all-label { font-size: 14px; }
    .cart-sheet-grid { grid-template-columns: 1fr; gap: 12px; }
    .cart-sheet-right { padding: 12px; }
    .cart-total-orig { font-size: 13px; }
    .cart-item-row { font-size: 13px; padding: 11px 0; }
    .cart-item-name { font-size: 13px; }
    .cart-final-label { font-size: 14px; }
    .cart-final-price { font-size: 26px; }
    .cart-vat { font-size: 10px; }
    .cart-note-list li { font-size: 10px; }
    .btn-full-reserve { padding: 15px; font-size: 14px; margin-top: 16px; }

    .brochure-sec { margin-top: 20px; }

    .contact { padding: 48px 20px; }
    .contact-grid { grid-template-columns: 1fr; gap: 32px; }
    .contact-left h3 { font-size: 24px; margin-bottom: 20px; }
    .c-phone { font-size: 20px; margin-bottom: 20px; }
    .c-phone span { font-size: 12px; }
    .c-row { gap: 12px; }
    .c-form-row { grid-template-columns: 1fr; }
    .map-box { height: 200px; min-height: unset; }

    footer { padding: 40px 20px 28px; }
    .ft-top { flex-direction: column; gap: 20px; align-items: flex-start; }
    .ft-nav { flex-wrap: wrap; gap: 14px; }
    .ft-copy { font-size: 10px; }
  }

  /* ─── Small mobile ─── */
  @media (max-width: 480px) {
    header { padding: 0 16px; }
    .pm-intro { padding: 20px 16px 16px; }
    .pm-intro h1 { font-size: 26px; }
    .pm-intro p { font-size: 13px; }

    .sidebar-promo-btn { min-width: 160px; padding: 14px 14px 12px; }
    .sidebar-promo-title { font-size: 12px; padding-bottom: 8px; margin-bottom: 8px; }
    .sidebar-promo-sub { font-size: 9px; }

    .banner-title { font-size: 20px; }
    .banner-tag { font-size: 12px; }

    .option-name { font-size: 13px; }
    .option-price { font-size: 20px; }

    .btn-row { grid-template-columns: 1fr; }
  }