.art-page {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px 20px 80px;
  color: #333;
  box-sizing: border-box;
}

.art-page-header {
  text-align: center;
  margin: 0 auto 34px;
}

.art-page-header h1 {
  font-size: 56px;
  letter-spacing: 0.08em;
  line-height: 1.1;
  margin: 0 0 22px;
  color: #222;
}

.art-page-header p {
  font-size: 18px;
  color: #666;
  line-height: 2;
  margin: 0;
}

.art-nowrap {
  white-space: nowrap;
}

.art-filter-toggle,
.art-filter-btn,
.art-sort-btn,
.art-reset-btn,
.art-search-submit-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  line-height: 1.2;
  vertical-align: middle;
  -webkit-appearance: none;
  appearance: none;
}

.art-filter-toggle-wrap {
  text-align: center;
  margin: 0 0 20px;
}

.art-filter-toggle {
  gap: 8px;
  min-height: 42px;
  padding: 11px 24px;
  border: 1px solid #ccc;
  border-radius: 999px;
  background: transparent;
  color: #333;
  cursor: pointer;
  font-size: 15px;
  transition: background 0.25s, color 0.25s, border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}

.art-filter-toggle:hover {
  background: #ece7e1;
  border-color: #bbb;
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
}

.art-filter-toggle.is-open {
  background: #222;
  color: #fff;
  border-color: #222;
}

.art-filter-toggle-icon {
  font-size: 12px;
}

.art-search-panel {
  display: none;
  max-width: 860px;
  margin: 0 auto 28px;
  padding: 28px 32px;
  background: #fff;
  border: 1px solid #e5e0d8;
  border-radius: 14px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.04);
}

.art-search-panel.is-open {
  display: block;
}

.art-filter-row {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 18px;
  align-items: start;
  margin-bottom: 22px;
}

.art-filter-row:last-of-type {
  margin-bottom: 0;
}

.art-filter-label {
  font-weight: bold;
  padding-top: 8px;
}

.art-filter-options {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
}

.art-filter-btn,
.art-sort-btn {
  min-height: 36px;
  padding: 8px 16px;
  border: 1px solid #ccc;
  border-radius: 999px;
  background: transparent;
  color: #333;
  cursor: pointer;
  font-size: 14px;
  transition: background 0.25s, color 0.25s, border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}

.art-filter-btn:hover,
.art-sort-btn:hover {
  background: #ece7e1;
  border-color: #bbb;
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
}

.art-filter-btn.active,
.art-sort-btn.active {
  background: #222;
  color: #fff;
  border-color: #222;
}

.art-filter-actions {
  display: flex;
  justify-content: center;
  margin-top: 26px;
}

.art-reset-btn {
  min-height: 36px;
  padding: 9px 22px;
  border: 1px solid #bbb;
  border-radius: 999px;
  background: #f7f5f2;
  color: #333;
  cursor: pointer;
  font-size: 14px;
}

.art-reset-btn:hover {
  background: #ece7e1;
}

.art-search-submit-btn {
  display: none;
}

.art-active-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: baseline;
  gap: 6px;
  margin: 0 0 18px;
  color: #666;
  font-size: 14px;
}

.art-active-filters-label {
  font-weight: bold;
  color: #444;
}

.art-active-filters-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0;
}

.art-active-filter-chip {
  display: inline-flex;
  align-items: center;
  padding: 0;
  border: none;
  border-radius: 0;
  background: transparent;
  color: #8d6846;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, "Yu Gothic", YuGothic, Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  font-weight: normal;
}

.art-active-filter-chip:not(:last-child)::after {
  content: "/";
  margin: 0 8px;
  color: #bbb;
  font-weight: normal;
}

.art-active-filters-empty {
  color: #666;
}

.art-result-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  margin: 0 0 28px;
}

.art-result-count {
  color: #666;
  font-size: 15px;
  margin: 0;
}

.art-sort-area {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: center;
  gap: 8px;
}

.art-sort-label {
  font-size: 14px;
  color: #666;
}

.mobile-sort-text {
  display: none;
}

.art-item {
  background: #fff;
  border: 1px solid #e5e0d8;
  border-radius: 14px;
  padding: 24px;
  margin-bottom: 36px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
}

.art-item.is-hidden {
  display: none;
}

.art-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 26px;
}

.art-image-box {
  background: #f7f7f7;
  padding: 16px;
  border-radius: 10px;
  overflow: hidden;
}

.art-image-box img,
.art-image-placeholder {
  width: 100%;
  height: 420px;
  display: block;
  background: #f7f7f7;
}

.art-image-box img {
  object-fit: contain;
}

.art-image-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  color: #999;
  font-size: 14px;
}

.art-info {
  max-width: none;
  padding-top: 4px;
}

.art-info h2 {
  margin: 0 0 6px;
  font-size: 26px;
}

.art-info .art-subtitle {
  margin: 0 0 16px;
  color: #666;
  font-size: 20px;
}

.art-info .art-subtitle.has-award {
  margin-bottom: 6px;
}

.art-info .art-award {
  margin: 0 0 16px;
  color: #666;
  font-size: 20px;
}

.art-meta {
  line-height: 1.9;
  margin-bottom: 10px;
  font-size: 18px;
}

.art-price {
  margin-bottom: 12px;
}

.art-monthly-fee {
  margin-bottom: 4px;
  font-size: 20px;
  font-weight: bold;
  color: #8d6846;
  line-height: 1.5;
}

.art-price-unit {
  font-size: 0.85em;
  font-weight: bold;
  color: inherit;
  margin-left: 0;
}

.art-price-slash {
  display: inline-block;
  position: relative;
  top: -0.08em;
  margin-right: 1px;
}

.art-price-month {
  display: inline-block;
  position: relative;
  top: -0.02em;
}

.art-purchase-price {
  font-size: 17px;
  font-weight: normal;
  color: #666;
  line-height: 1.6;
}

.art-note {
  color: #666;
  font-size: 18px;
}

.art-supplement-note {
  margin-top: 8px;
  color: #888;
  font-size: 16px;
  line-height: 1.8;
}

.art-empty-message {
  display: none;
  text-align: center;
  padding: 40px 20px;
  color: #666;
}

.art-empty-message.active {
  display: block;
}

@media (min-width: 769px) and (max-width: 1100px) {
  .art-result-toolbar {
    display: block;
    margin: 0 auto 28px;
    text-align: center;
  }

  .art-result-count {
    margin: 0 0 14px;
    text-align: center;
  }

  .art-sort-area {
    justify-content: center;
    gap: 8px;
  }

  .art-sort-label {
    flex: 0 0 auto;
  }

  .art-sort-btn {
    flex: 0 0 auto;
    min-height: 36px;
    padding: 8px 14px;
    font-size: 13px;
    white-space: nowrap;
  }
}

@media (max-width: 768px) {
  .art-page {
    padding: 0 0 50px;
  }

  .art-page-header {
    margin-bottom: 18px;
  }

  .art-page-header h1 {
    font-size: 32px;
    line-height: 1.15;
    margin-bottom: 10px;
  }

  .art-page-header p {
    font-size: 14px;
    line-height: 1.8;
    padding: 0 8px;
  }

  .art-filter-toggle-wrap {
    margin-bottom: 14px;
  }

  .art-filter-toggle {
    min-height: 40px;
    padding: 10px 20px;
    font-size: 14px;
  }

  .art-search-panel {
    margin: 0 8px 18px;
    padding: 18px 14px;
  }

  .art-filter-row {
    grid-template-columns: 1fr;
    gap: 7px;
    margin-bottom: 18px;
  }

  .art-filter-label {
    padding-top: 0;
    font-size: 13px;
  }

  .art-filter-options {
    gap: 7px;
  }

  .art-filter-btn {
    min-height: 34px;
    padding: 7px 11px;
    font-size: 12.5px;
  }

  .art-filter-actions {
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 22px;
  }

  .art-reset-btn {
    min-height: 34px;
    padding: 8px 18px;
    font-size: 13px;
  }

  .art-search-submit-btn {
    display: inline-flex;
    min-height: 34px;
    padding: 8px 20px;
    border: 1px solid #222;
    border-radius: 999px;
    background: #222;
    color: #fff;
    cursor: pointer;
    font-size: 13px;
  }

  .art-search-submit-btn:hover {
    background: #333;
    border-color: #333;
  }

  .art-active-filters {
    margin: 0 8px 8px;
    gap: 5px;
    font-size: 12.5px;
    line-height: 1.5;
  }

  .art-active-filter-chip {
    font-size: 12.5px;
  }

  .art-active-filter-chip:not(:last-child)::after {
    margin: 0 6px;
  }

  .art-result-toolbar {
    display: block;
    margin: 0 8px 18px;
  }

  .art-result-count {
    text-align: center;
    margin-bottom: 10px;
    font-size: 13px;
  }

  .art-sort-area {
    justify-content: center;
    gap: 7px;
  }

  .art-sort-label {
    display: none;
  }

  .art-sort-btn {
    flex: 0 0 auto;
    min-height: 32px;
    padding: 6px 10px;
    font-size: 12px;
    white-space: nowrap;
    min-width: auto;
    letter-spacing: 0;
  }

  .sort-suffix,
  .desktop-sort-text {
    display: none;
  }

  .mobile-sort-text {
    display: inline;
  }

  .art-item {
    padding: 14px;
    margin-bottom: 24px;
  }

  .art-images {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 12px;
  }

  .art-image-box {
    padding: 6px;
  }

  .art-image-box img,
  .art-image-placeholder {
    height: 240px;
  }

  .art-info h2 {
    font-size: 18px;
    margin: 0 0 2px;
  }

  .art-info .art-subtitle {
    font-size: 15px;
    margin-bottom: 12px;
  }

  .art-info .art-subtitle.has-award {
    margin-bottom: 4px;
  }

  .art-info .art-award {
    font-size: 15px;
    margin-bottom: 12px;
  }

  .art-meta {
    font-size: 14px;
  }

  .art-monthly-fee {
    font-size: 16px;
  }

  .art-purchase-price {
    font-size: 13px;
  }

  .art-note {
    font-size: 14px;
  }

  .art-supplement-note {
    font-size: 13px;
  }
}