/* ---------------------------------- CSS RESET & VARIABLES ---------------------------------- */
    :root {
      --primary: #E06D53;
      --primary-hover: #C8563C;
      --accent: #E8963E;
      --bg-main: #FAF7F5;
      --bg-card: #FFFFFF;
      --text-main: #332C2B;
      --text-muted: #7A6E6B;
      --border: #E6DAD3;
      --radius: 16px;
      --grad-primary: linear-gradient(135deg, #E06D53 0%, #E8963E 100%);
      --grad-hero: linear-gradient(180deg, #FFF5F2 0%, #FAF7F5 100%);
      --shadow-sm: 0 6px 18px rgba(224, 109, 83, 0.12);
      --shadow-lg: 0 14px 32px rgba(224, 109, 83, 0.2);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
      background-color: var(--bg-main);
      background-image: radial-gradient(#E8DDD7 1.5px, transparent 1.5px);
      background-size: 24px 24px;
      color: var(--text-main);
      line-height: 1.8;
      padding-bottom: 60px;
      overflow-x: hidden;
    }

    a {
      color: var(--primary);
      text-decoration: none;
      transition: color 0.2s;
    }

    a:hover {
      color: var(--primary-hover);
      text-decoration: underline;
    }

    /* ---------------------------------- HERO AREA ---------------------------------- */
    .hero {
      background: var(--grad-hero);
      border-bottom: 2px dashed #E2D5CE;
      padding: 65px 20px 50px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .hero::before,
    .hero::after {
      content: "";
      position: absolute;
      border-radius: 50%;
      background: linear-gradient(135deg, rgba(224, 109, 83, 0.12), rgba(232, 150, 62, 0.12));
      z-index: 0;
    }

    .hero::before {
      width: 160px;
      height: 160px;
      top: -40px;
      left: 5%;
    }

    .hero::after {
      width: 110px;
      height: 110px;
      bottom: 10px;
      right: 6%;
    }

    .hero-container {
      position: relative;
      z-index: 1;
      max-width: 800px;
      margin: 0 auto;
    }

    .header-title {
      font-size: 3.8rem;
      letter-spacing: 0.06em;
      background: var(--grad-primary);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      font-weight: 900;
      line-height: 1.15;
      display: inline-block;
      filter: drop-shadow(0 4px 12px rgba(224, 109, 83, 0.2));
    }

    .header-subtitle {
      font-size: 1.05rem;
      color: var(--text-muted);
      margin-top: 12px;
      font-weight: 600;
      letter-spacing: 0.05em;
    }

    /* ---------------------------------- LAYOUT & NAV ---------------------------------- */
    nav {
      background: var(--grad-primary);
      position: sticky;
      top: 0;
      z-index: 100;
      box-shadow: 0 4px 15px rgba(224, 109, 83, 0.2);
    }

    nav ul {
      display: flex;
      justify-content: center;
      list-style: none;
      flex-wrap: wrap;
    }

    nav a {
      color: #FFF;
      display: block;
      padding: 14px 22px;
      font-size: 0.95rem;
      font-weight: 600;
      letter-spacing: 0.03em;
      transition: background-color 0.2s;
      white-space: nowrap;
    }

    nav a:hover {
      background-color: rgba(255, 255, 255, 0.2);
      text-decoration: none;
    }

    .container {
      max-width: 900px;
      margin: 40px auto 0;
      padding: 0 20px;
    }

    .section,
    .news-section {
      background: var(--bg-card);
      border-radius: var(--radius);
      border: 1px solid var(--border);
      padding: 36px;
      margin-bottom: 40px;
      box-shadow: var(--shadow-sm);
      transition: box-shadow 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
    }

    .section:hover,
    .news-section:hover {
      transform: translateY(-4px); 
      box-shadow: 0 8px 24px rgba(224, 109, 83, 0.15);
    }

    .section-title {
      font-size: 1.35rem;
      color: var(--text-main);
      position: relative;
      margin-bottom: 24px;
      display: flex;
      align-items: center;
      font-weight: 700;
      padding-left: 14px;
    }

    .section-title::before {
      content: "";
      position: absolute;
      left: 0;
      top: 50%;
      transform: translateY(-50%);
      width: 6px;
      height: 80%;
      background: var(--grad-primary);
      border-radius: 4px;
    }

    .section-title::after {
      content: "";
      position: absolute;
      bottom: -8px;
      left: 0;
      width: 100%;
      height: 2px;
      background: repeating-linear-gradient(to right, #E8DDD7, #E8DDD7 6px, transparent 6px, transparent 12px);
    }

    .sub-section-title {
      font-size: 1.15rem;
      color: var(--text-main);
      font-weight: 700;
      margin: 32px 0 16px;
      padding-bottom: 6px;
      padding-left: 18px;
      position: relative;
      border-bottom: 2px dashed var(--accent); /* オレンジの点線 */
    }

    /* 先頭に小さく可愛いドットを配置 */
    .sub-section-title::before {
      content: "";
      position: absolute;
      left: 0;
      top: 50%;
      transform: translateY(-50%);
      width: 8px;
      height: 8px;
      background-color: var(--primary);
      border-radius: 50%;
    }

    .sub-section-title:first-child {
      margin-top: 0;
    }

    /* ---------------------------------- ACCORDION STYLES ---------------------------------- */
    .accordion-section {
      padding: 0; /* 内側の余白は details 内でコントロール */
      overflow: hidden;
    }

    .accordion-item summary {
      list-style: none;
      padding: 28px 36px;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
      transition: background-color 0.2s;
    }

    .accordion-item summary::-webkit-details-marker {
      display: none;
    }

    .accordion-item summary:hover {
      background-color: #FFF9F7;
    }

    .accordion-title {
      font-size: 1.35rem;
      color: var(--text-main);
      position: relative;
      font-weight: 700;
      padding-left: 14px;
      margin-bottom: 0;
    }

    .accordion-title::before {
      content: "";
      position: absolute;
      left: 0;
      top: 50%;
      transform: translateY(-50%);
      width: 6px;
      height: 80%;
      background: var(--grad-primary);
      border-radius: 4px;
    }

    .accordion-icon {
      font-size: 1.1rem;
      color: var(--primary);
      font-weight: bold;
      transition: transform 0.3s ease;
      background: #FFEFEA;
      padding: 4px 12px;
      border-radius: 20px;
    }

    .accordion-item[open] .accordion-icon {
      transform: rotate(180deg);
      background: var(--grad-primary);
      color: #fff;
    }

    .accordion-content {
      padding: 10px 36px 36px 36px;
      border-top: 1px dashed var(--border);
      animation: accordionFadeIn 0.35s ease;
    }

    @keyframes accordionFadeIn {
      from {
        opacity: 0;
        transform: translateY(-8px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    /* ---------------------------------- NEWS / HISTORY ---------------------------------- */
    .news-scroll-box {
      max-height: 140px;
      overflow-y: auto;
      padding-right: 10px;
    }

    .news-scroll-box::-webkit-scrollbar {
      width: 6px;
    }

    .news-scroll-box::-webkit-scrollbar-track {
      background: #FAF5F2;
      border-radius: 10px;
    }

    .news-scroll-box::-webkit-scrollbar-thumb {
      background: #E2D5CE;
      border-radius: 10px;
    }

    .news-scroll-box::-webkit-scrollbar-thumb:hover {
      background: var(--primary);
    }

    .news-list {
      list-style: none;
    }

    .news-item {
      display: flex;
      align-items: baseline;
      gap: 12px;
      padding: 8px 0;
      border-bottom: 1px dashed var(--border);
      font-size: 0.88rem;
    }

    .news-item:last-child {
      border-bottom: none;
    }

    .news-date {
      font-family: monospace, sans-serif;
      font-weight: bold;
      color: var(--primary);
      background: #FFEFEA;
      padding: 2px 8px;
      border-radius: 6px;
      font-size: 0.78rem;
      flex-shrink: 0;
    }

    .news-text {
      color: var(--text-main);
    }

    /* ---------------------------------- RULES ---------------------------------- */
    .rule-list {
      list-style: none;
    }

    .rule-list li {
      position: relative;
      padding-left: 28px;
      margin-bottom: 14px;
    }

    .rule-list li::before {
      content: "🐾";
      position: absolute;
      left: 0;
      font-size: 0.9rem;
    }

    .rule-list li.rule-ng::before {
      content: "❌";
      font-size: 0.85rem;
    }

    .alert-box {
      background-color: #FFF6F3;
      border: 1px dashed var(--primary);
      padding: 18px;
      margin-top: 18px;
      border-radius: 12px;
      font-size: 0.9rem;
      color: #5A443E;
    }

    .alert-box code {
      background-color: #F4ECE7;
      padding: 2px 6px;
      border-radius: 4px;
      font-family: monospace;
      color: var(--primary-hover);
      font-weight: bold;
    }

    .code-preview {
      display: block;
      background-color: #F8F1ED;
      border: 1px solid #E6DAD3;
      padding: 12px;
      margin-top: 10px;
      border-radius: 8px;
      font-family: monospace;
      font-size: 0.8rem;
      line-height: 1.5;
      color: #66524A;
      white-space: pre-wrap;
      word-break: break-all;
      overflow-x: auto;
    }

    /* ---------------------------------- HOW TO USE STEPS ---------------------------------- */
    .step-item {
      margin-bottom: 22px;
      background: #FAF5F2;
      padding: 18px 20px;
      border-radius: 12px;
      border: 1px solid var(--border);
      transition: all 0.2s ease;
    }

    .step-item:last-child {
      margin-bottom: 0;
    }

    .step-item:hover {
      background-color: #FFF5F1;
      border-color: var(--primary);
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }

    .step-item h3 {
      font-size: 1.05rem;
      margin-bottom: 6px;
      color: var(--text-main);
      display: flex;
      align-items: center;
    }

    .step-number {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--grad-primary);
      color: #FFF;
      font-weight: bold;
      width: 26px;
      height: 26px;
      border-radius: 50%;
      font-size: 0.85rem;
      margin-right: 10px;
      flex-shrink: 0;
    }

    /* ---------------------------------- COLUMN ---------------------------------- */
    .column-list {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
      gap: 16px;
    }

    .column-card {
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #FAF5F2;
      padding: 20px 24px;
      border-radius: 12px;
      border: 1px solid var(--border);
      transition: all 0.2s;
      opacity: 0;
    }

    .column-card.fade-in {
      animation: fadeInUp 0.4s cubic-bezier(0.25, 1, 0.5, 1) forwards;
    }

    .column-card.is-hidden {
      display: none !important;
    }

    .column-card:hover {
      background-color: #FFF5F1;
      border-color: var(--primary);
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
      text-decoration: none;
    }

    .column-info {
      display: flex;
      flex-direction: column;
      gap: 4px;
    }

    .column-card-title {
      font-size: 1.05rem;
      font-weight: bold;
      color: var(--text-main);
      transition: color 0.2s;
    }

    .column-card:hover .column-card-title {
      color: var(--primary);
    }

    .column-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    .column-arrow {
      color: var(--primary);
      font-weight: bold;
      font-size: 1.2rem;
      margin-left: 16px;
      flex-shrink: 0;
    }

    @media (max-width: 600px) {
      .column-list {
        grid-template-columns: 1fr;
      }
    }

    /* ---------------------------------- CATEGORY TABS ---------------------------------- */
    .category-tabs {
      display: flex;
      gap: 10px;
      margin-bottom: 24px;
      flex-wrap: wrap;
    }

    .tab-btn {
      background: #FAF5F2;
      border: 1px solid var(--border);
      color: var(--text-muted);
      padding: 8px 18px;
      border-radius: 20px;
      font-size: 0.88rem;
      font-weight: bold;
      cursor: pointer;
      transition: all 0.2s;
    }

    .tab-btn:hover {
      background-color: #FFEFEA;
      color: var(--primary);
    }

    .tab-btn.active {
      background: var(--grad-primary);
      color: #FFF;
      border-color: transparent;
      box-shadow: var(--shadow-sm);
    }

    /* ---------------------------------- TEMPLATE CARDS & ANIMATION ---------------------------------- */
    .template-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
      gap: 24px;
    }

    .template-card {
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      background: #FFF;
      transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.25s ease;
      opacity: 0;
    }

    .template-card:hover {
      transform: translateY(-8px) !important;
      box-shadow: var(--shadow-lg);
    }

    @keyframes fadeInUp {
      from {
        opacity: 0;
        transform: translateY(16px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .template-card.fade-in {
      animation: fadeInUp 0.4s cubic-bezier(0.25, 1, 0.5, 1) forwards;
    }

    .template-card.is-hidden {
      display: none !important;
    }

    .template-img {
      width: 100%;
      height: 160px;
      background-color: #FDF3EF;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-muted);
      font-size: 0.85rem;
      border-bottom: 1px solid var(--border);
      overflow: hidden;
    }

    .template-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .template-body {
      padding: 20px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
    }

    .template-title {
      font-size: 1.15rem;
      margin-bottom: 6px;
      color: var(--text-main);
      font-weight: 700;
    }

    .tag-list {
      display: flex;
      gap: 6px;
      flex-wrap: wrap;
      margin-bottom: 12px;
    }

    .tag {
      font-size: 0.72rem;
      padding: 2px 8px;
      border-radius: 10px;
      font-weight: bold;
      background-color: #F4ECE7;
      color: #705B54;
    }

    .tag-accent {
      background-color: #FFEFEA;
      color: var(--primary);
    }

    .template-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-bottom: 20px;
      flex-grow: 1;
    }

    .template-links {
      display: flex;
      gap: 10px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      padding: 10px 12px;
      border-radius: 8px;
      font-size: 0.85rem;
      font-weight: bold;
      width: 50%;
      transition: all 0.2s;
      cursor: pointer;
      border: none;
    }

    .btn-full {
      width: 100%;
    }

    .btn-demo {
      background-color: #F7EFEA;
      color: #66524A;
    }

    .btn-code {
      background: var(--grad-primary);
      color: #FFF;
      box-shadow: 0 4px 10px rgba(224, 109, 83, 0.2);
    }

    .btn:hover {
      opacity: 0.9;
      transform: scale(1.03);
      text-decoration: none;
    }

    /* ---------------------------------- UTILITY TOOLS LIST ---------------------------------- */
    .tool-sub-title {
      font-size: 1.05rem;
      font-weight: bold;
      color: var(--text-main);
      margin: 32px 0 16px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .mini-tool-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
      gap: 16px;
    }

    .mini-tool-card {
      display: flex;
      justify-content: space-between;
      align-items: center;
      background: #FAF5F2;
      padding: 16px 20px;
      border-radius: 12px;
      border: 1px solid var(--border);
      transition: all 0.2s;
    }

    .mini-tool-card:hover {
      background-color: #FFF5F1;
      border-color: var(--primary);
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
      text-decoration: none;
    }

    .mini-tool-info {
      display: flex;
      flex-direction: column;
      gap: 4px;
    }

    .mini-tool-title {
      font-size: 0.98rem;
      font-weight: bold;
      color: var(--text-main);
      transition: color 0.2s;
    }

    .mini-tool-card:hover .mini-tool-title {
      color: var(--primary);
    }

    .mini-tool-desc {
      font-size: 0.82rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    .mini-tool-action {
      flex-shrink: 0;
      margin-left: 16px;
    }

    .btn-sm {
      width: auto;
      padding: 8px 16px;
      font-size: 0.82rem;
      white-space: nowrap;
    }

    @media (max-width: 600px) {
      .mini-tool-grid {
        grid-template-columns: 1fr;
      }
      .mini-tool-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
      }
      .mini-tool-action {
        margin-left: 0;
        width: 100%;
      }
      .mini-tool-action .btn-sm {
        width: 100%;
      }
    }

    /* ---------------------------------- PROFILE & CONTACT ---------------------------------- */
    .contact-list {
      margin-top: 16px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .contact-item-link {
      display: flex;
      align-items: center;
      gap: 16px;
      background: #FAF5F2;
      padding: 14px 20px;
      border-radius: 12px;
      border: 1px solid var(--border);
      text-decoration: none !important;
      transition: background-color 0.2s, border-color 0.2s, transform 0.2s;
    }

    .contact-item-link:hover {
      background-color: #FFF5F1;
      border-color: var(--primary);
      transform: translateX(4px);
    }

    .contact-icon,
    .profile-img {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      box-shadow: var(--shadow-sm);
    }

    .contact-icon {
      background: #FFF;
    }

    .contact-icon-svg {
      color: var(--text-main);
      transition: color 0.2s;
    }

    .contact-item-link:hover .contact-icon-svg {
      color: var(--primary);
    }

    .profile-img {
      overflow: hidden;
      border: 2px solid #FFF;
      background-color: #E8DDD7;
    }

    .profile-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .contact-detail {
      display: flex;
      flex-direction: column;
    }

    .contact-label {
      font-size: 0.72rem;
      font-weight: bold;
      color: var(--text-muted);
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .contact-name,
    .contact-value {
      font-weight: bold;
      font-size: 0.92rem;
      color: var(--primary);
      word-break: break-all;
      transition: color 0.2s;
    }

    .contact-item-link:hover .contact-name,
    .contact-item-link:hover .contact-value {
      color: var(--primary-hover);
    }

    /* ---------------------------------- LINK SECTION STYLES ---------------------------------- */
    .link-sub-title {
      font-size: 1.05rem;
      font-weight: bold;
      color: var(--text-main);
      margin: 28px 0 12px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .banner-wrapper {
      background-color: #FFF6F3;
      border: 1px dashed var(--primary);
      padding: 18px 20px;
      border-radius: 12px;
      margin-bottom: 24px;
      display: flex;
      gap: 20px;
      align-items: center;
      justify-content: space-between;
    }

    .banner-text-area {
      flex: 1;
      font-size: 0.88rem;
    }

    .banner-text-area p {
      margin-bottom: 8px;
      color: #5A443E;
    }

    .banner-meta {
      background-color: #FAF5F2;
      border: 1px solid var(--border);
      padding: 8px 12px;
      border-radius: 8px;
      font-size: 0.82rem;
    }

    .banner-img-area {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 4px;
      flex-shrink: 0;
    }

    .banner-img-200-40 {
      width: 200px;
      height: 40px;
      object-fit: cover;
      display: block;
      border-radius: 4px;
      box-shadow: 0 2px 6px rgba(224, 109, 83, 0.15);
      transition: transform 0.2s ease, opacity 0.2s ease;
    }

    .banner-img-200-40:hover {
      opacity: 0.85;
      transform: translateY(-1px);
    }

    .banner-note {
      font-size: 0.72rem;
      color: var(--text-muted);
    }

    .search-engine-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
      gap: 12px;
    }

    .search-engine-card {
      display: flex;
      align-items: center;
      gap: 14px;
      background-color: #FFF6F3;
      padding: 12px 16px;
      border-radius: 12px;
      border: 1px solid rgba(224, 109, 83, 0.3);
      text-decoration: none !important;
      transition: background-color 0.2s, border-color 0.2s, transform 0.2s, box-shadow 0.2s;
    }

    .search-engine-card:hover {
      background-color: #FFEFEA;
      border-color: var(--primary);
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }

    .search-engine-info {
      display: flex;
      flex-direction: column;
      gap: 2px;
      overflow: hidden;
    }

    .search-engine-name {
      font-weight: bold;
      font-size: 0.9rem;
      color: var(--primary);
      transition: color 0.2s;
    }

    .search-engine-card:hover .search-engine-name {
      color: var(--primary-hover);
    }

    .search-engine-desc {
      font-size: 0.78rem;
      color: #5A443E;
      line-height: 1.4;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    footer {
      text-align: center;
      color: var(--text-muted);
      font-size: 0.85rem;
      margin-top: 60px;
    }

    /* ---------------------------------- BACK BUTTON ---------------------------------- */
    .back-nav {
      text-align: center;
      margin-top: 40px;
    }

    .btn-back {
      display: inline-block;
      background: var(--grad-primary);
      color: #FFF;
      padding: 12px 32px;
      border-radius: 30px;
      font-weight: bold;
      font-size: 0.95rem;
      box-shadow: var(--shadow-sm);
      transition: transform 0.2s, box-shadow 0.2s;
    }

    .btn-back:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-lg);
      text-decoration: none;
      color: #FFF;
    }

    /* ---------------------------------- SMOOTH SCROLL ---------------------------------- */
    html {
      scroll-behavior: smooth;
    }

    /* ---------------------------------- PAGE TOP BUTTON ---------------------------------- */
    .pagetop-btn {
      position: fixed;
      bottom: 24px;
      right: 24px;
      background: transparent;
      border: none;
      font-size: 2.2rem;
      line-height: 1;
      cursor: pointer;
      z-index: 999;
      opacity: 0;
      visibility: hidden;
      filter: drop-shadow(0 4px 8px rgba(224, 109, 83, 0.35));
      transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
    }

    .pagetop-btn.is-active {
      opacity: 1;
      visibility: visible;
    }

    .pagetop-btn:hover {
      transform: translateY(-6px) scale(1.15);
      filter: drop-shadow(0 8px 14px rgba(224, 109, 83, 0.5));
    }

    .pagetop-btn::before {
      content: "TOP";
      position: absolute;
      top: -24px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary);
      color: #fff;
      font-size: 0.65rem;
      font-weight: bold;
      padding: 2px 6px;
      border-radius: 8px;
      opacity: 0;
      transition: opacity 0.2s ease;
      pointer-events: none;
      white-space: nowrap;
    }

    .pagetop-btn:hover::before {
      opacity: 1;
    }

    @media (max-width: 600px) {
      .pagetop-btn {
        bottom: 20px;
        right: 16px;
        font-size: 1.8rem;
      }
    }

    /* ---------------------------------- MOBILE OPTIMIZATION ---------------------------------- */
    @media (max-width: 600px) {
      .hero {
        padding: 45px 15px 35px;
      }
      .header-title {
        font-size: 2.8rem;
      }
      .header-subtitle {
        font-size: 0.9rem;
      }
      nav ul {
        flex-wrap: nowrap;
        justify-content: flex-start;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding: 0 10px;
      }
      nav a {
        padding: 10px 14px;
        font-size: 0.88rem;
      }

      .container {
        margin-top: 32px;
        padding: 0 16px;
      }

      .section,
      .news-section {
        padding: 24px 20px;
        margin-bottom: 32px;
        box-shadow: 0 6px 18px rgba(224, 109, 83, 0.12);
        border: 1px solid #E6DAD3;
      }

      .accordion-item summary {
        padding: 20px;
      }

      .accordion-content {
        padding: 10px 20px 24px 20px;
      }

      .section-title,
      .accordion-title {
        font-size: 1.25rem;
        padding-left: 14px;
      }

      .template-grid {
        gap: 20px;
      }

      .column-card {
        padding: 16px;
      }

      .banner-wrapper {
        flex-direction: column-reverse;
        align-items: stretch;
        gap: 14px;
      }

      .banner-img-area {
        align-items: center;
      }

      .search-engine-grid {
        grid-template-columns: 1fr;
      }

      .search-engine-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
      }

      .search-engine-desc {
        white-space: normal;
      }
    }