.sec-container {
    text-align: left;
  }
  
  .ex-content-box {
    background-color: rgba(0, 0, 0, 0.5);
    padding: 30px;
    margin-bottom: 40px;
    border-radius: 5px;
  }

  .ex-content-title {
    font-size: 1.8rem;
    margin-bottom: 20px;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    padding-bottom: 10px;
  }

  .ex-content-subtitle {
    font-size: 1.4rem;
    margin: 20px 0 15px;
    border-left: 3px solid #fff;
    padding-left: 15px;
  }

  .ex-mode-img {
    width: 80%;
    margin: 20px auto;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  }

  .ex-mode-img img {
    width: 100%;
    height: auto;
    display: block;
  }

  .ex-content-text {
    line-height: 1.8;
    margin-bottom: 20px;
  }

  .ex-notice-list {
    margin-left: 0;
    margin-bottom: 20px;
    padding: 0;
    list-style: none;
  }

  .ex-notice-list li {
    line-height: 1.8;
    position: relative;
    padding-left: 20px;
  }

  .ex-notice-list li::before {
    content: "・";
    position: absolute;
    left: 0;
  }

  .ex-highlight-box {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 20px;
    margin: 20px 0;
    border-radius: 5px;
    border-left: 5px solid #888;
  }

  .ex-highlight-box>.ex-app-info-container {
    padding-bottom: 30px;
    margin-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  }

  .ex-highlight-box>.ex-app-info-container:last-of-type {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
  }

  .ex-lite-content:nth-of-type(3) {
    padding-bottom: 30px;
    margin-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  }

  .ex-highlight-box h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid rgba(255, 255, 255, 0.3);
  }

  .ex-highlight-box h4:nth-of-type(3) {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
  }

  .ex-highlight-box h4.ex-lite-toggle {
    border-bottom: none;
    background-color: rgba(255, 255, 255, 0.05);
    padding: 15px 20px;
    border-radius: 5px;
    margin-left: -10px;
    margin-right: -10px;
  }

  .ex-highlight-box h4.ex-lite-toggle:hover {
    background-color: rgba(255, 255, 255, 0.08);
  }

  .ex-app-info-container {
    display: flex;
    gap: 20px;
    margin: 20px 0;
    align-items: flex-start;
  }

  .ex-app-image {
    width: 100px;
    height: 100px;
    flex-shrink: 0;
    overflow: hidden;
    border-radius: 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  }

  .ex-app-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
  }

  .ex-app-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 15px;
  }

  .ex-warning-box {
    background-color: rgba(255, 100, 100, 0.2);
    border-left: 5px solid rgba(255, 100, 100, 0.5);
    padding: 20px;
    border-radius: 5px;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
  }

  .ex-warning-icon {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 100, 100, 0.5);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    font-weight: bold;
    color: #fff;
    margin-right: 20px;
    flex-shrink: 0;
  }

  .ex-warning-text {
    color: #fff;
    margin: 0;
    line-height: 1.6;
    font-size: 1rem;
  }

  .ex-app-desc {
    margin: 0;
    line-height: 1.6;
    font-size: 1rem;
  }

  .ex-app-notice {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
    line-height: 1.4;
  }

  .ex-tab-container {
    margin-top: 20px;
    margin-bottom: 40px;
  }

  .ex-tab-buttons {
    display: flex;
    margin-bottom: 0;
  }

  .ex-tab-button {
    flex: 1;
    text-align: center;
    padding: 15px;
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.4);
    background-color: rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
  }

  .ex-tab-button.active {
    font-size: 1.2rem;
    color: #fff;
    background-color: rgba(0, 0, 0, 0.7);
    border-bottom: 2px solid #fff;
  }

  .ex-tab-content {
    display: none;
    padding: 30px;
    background-color: rgba(0, 0, 0, 0.7);
  }

  .ex-tab-content.active {
    display: block;
  }

  .ex-dl-btn-area {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    margin-bottom: 15px;
    gap: 15px;
  }

  .ex-dl-btn-area a {
    display: block;
  }

  .ex-dl-btn-area img {
    width: auto;
    height: 40px;
    object-fit: contain;
    transition: opacity 0.3s ease;
  }

  .ex-dl-btn-area img:hover {
    opacity: 0.8;
  }

  .ex-app-usage-section {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 20px;
    margin: 20px 0;
    border-radius: 8px;
  }

  .ex-app-usage-section h4 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: #fff;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    padding-bottom: 10px;
  }

  .ex-usage-toggle {
    cursor: pointer;
    position: relative;
    padding-right: 25px;
    transition: color 0.3s ease;
  }

  .ex-usage-toggle:hover {
    color: rgba(255, 255, 255, 0.8);
  }

  .ex-usage-toggle::after {
    content: "";
    position: absolute;
    right: 10px;
    top: 30%;
    width: 10px;
    height: 10px;
    border-top: 2px solid rgba(255, 255, 255, 0.8);
    border-right: 2px solid rgba(255, 255, 255, 0.8);
    transform: translateY(-50%) rotate(45deg);
    transition: transform 0.3s ease;
  }

  .ex-usage-toggle.active::after {
    transform: translateY(-50%) rotate(-45deg);
  }

  .ex-usage-content {
    display: none;
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: opacity 0.3s ease, max-height 0.5s ease;
  }

  .ex-usage-content.active {
    display: block;
    opacity: 1;
    max-height: 4000px;
  }

  .ex-app-usage-steps {
    list-style: none;
    padding: 0;
    margin: 0;
  }

  .ex-app-usage-steps li {
    position: relative;
    padding-left: 35px;
    margin-bottom: 30px;
    font-size: 1rem;
    line-height: 1.6;
    counter-increment: step-counter;
  }

  .ex-step-with-image {
    gap: 20px;
    align-items: flex-start;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  }

  .ex-step-text {
    flex: 1;
  }

  .ex-step-text li {
    font-size: 1.2rem;
  }

  .ex-step-content p {
    flex: 1;
    margin: 0;
    padding: 10px 0;
    font-size: 1rem;
    position: relative;
    padding-left: 30px;
  }

  .ex-step-content p::before {
    content: counter(step-counter);
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: bold;
  }

  .ex-step-image {
    display: flex;
    height: 400px;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    margin-left: 30px;
  }

  .ex-step-image img {
    object-fit: cover;
    margin-right: 40px;
  }

  .ex-app-usage-section p {
    margin-top: 15px;
    line-height: 1.6;
  }

  .ex-app-usage-section a {
    color: #88ccff;
    text-decoration: none;
    border-bottom: 1px solid #88ccff;
    transition: all 0.3s ease;
  }

  .ex-app-usage-section a:hover {
    color: #aaddff;
    border-bottom-color: #aaddff;
  }

  .ex-3d-scan-notice {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 20px;
    margin: 20px 0;
    border-radius: 8px;
    border-left: 4px solid #ff6b6b;
  }

  .ex-3d-scan-notice h5 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: #ff6b6b;
    border-bottom: 1px solid rgba(255, 107, 107, 0.3);
    padding-bottom: 8px;
  }

  .ex-scan-notice-list {
    list-style: none;
    padding: 0;
    margin: 0;
  }

  .ex-scan-notice-list li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 12px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
  }

  .ex-scan-notice-list li::before {
    content: "⚠️";
    position: absolute;
    left: 0;
    top: 0;
  }

  .ex-scan-location-section {
    margin-top: 40px;
    background-color: rgba(255, 255, 255, 0.03);
    padding: 25px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
  }

  .ex-scan-location-section h5 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    padding-bottom: 8px;
  }

  .ex-scan-location-map {
    width: 100%;
    max-width: 800px;
    margin: 20px auto;
    border-radius: 8px;
    overflow: hidden;
  }

  .ex-scan-location-map img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
  }

  .ex-3d-scan-tutorial {
    margin-top: 30px;
  }

  .ex-3d-scan-tutorial h5 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    padding-bottom: 8px;
  }

  .ex-3d-scan-tutorial h6 {
    font-size: 1.1rem;
    margin: 20px 0 15px;
    border-left: 1px solid rgba(255, 255, 255, 0.9);
    padding-left: 10px;
  }

  .ex-scan-image-section {
    margin-bottom: 40px;
  }

  .ex-scan-images-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 20px;
  }

  .ex-scan-image-item {
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(78, 205, 196, 0.2);
    position: relative;
  }

  .ex-scan-step-label {
    position: absolute;
    top: 15px;
    left: 15px;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    font-size: 0.9rem;
    font-weight: bold;
    padding: 6px 12px;
    border-radius: 4px;
    z-index: 2;
    letter-spacing: 0.5px;
    border: 1px solid rgba(255, 255, 255, 0.2);
  }

  .ex-scan-image-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
  }

  .ex-scan-video-section {
    margin-bottom: 30px;
  }

  .ex-video-container {
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  }

  .ex-video-container video {
    width: 100%;
    height: auto;
    object-fit: contain;
    display: block;
  }

  .ex-qa-section {
    background-color: rgba(0, 0, 0, 0.5);
    padding: 30px;
    margin: 40px 0;
    border-radius: 5px;
  }

  .ex-qa-title {
    font-size: 1.8rem;
    margin-bottom: 30px;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    padding-bottom: 10px;
  }

  .ex-qa-item {
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding-bottom: 0;
    text-indent: -2.5em;
    padding-left: 2.5em;
  }

  .ex-qa-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
  }

  .ex-qa-question {
    font-size: 1.3rem;
    font-weight: 500;
    line-height: 1.8;
    margin-bottom: 0;
    color: #fff;
    cursor: pointer;
    padding: 20px 40px 10px 0;
    position: relative;
    transition: color 0.3s ease;
    user-select: none;
  }

  .ex-qa-question:hover {
    color: rgba(255, 255, 255, 0.8);
  }

  .ex-qa-question::after {
    content: "";
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    width: 10px;
    height: 10px;
    border-top: 2px solid #fff;
    border-right: 2px solid #fff;
    transform: translateY(-50%) rotate(45deg);
    transition: transform 0.3s ease;
  }

  .ex-qa-question.active::after {
    transform: translateY(-50%) rotate(-45deg);
  }

  .ex-qa-question-mark {
    font-size: 2rem;
    margin-right: 5px;
  }

  .ex-qa-answer {
    font-size: 1.3rem;
    line-height: 1.6;
    font-weight: 500;
    border-radius: 4px;
    margin-bottom: 12px;
    display: none;
    transition: all 0.3s ease;
  }

  .ex-qa-answer-mark {
    font-size: 2rem;
    margin-right: 5px;
  }

  .ex-qa-answer ul {
    margin: 10px 0;
    padding-left: 20px;
  }

  .ex-qa-answer li {
    margin-bottom: 8px;
    line-height: 1.8;
  }

  .ex-app-conditions {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 20px;
    margin: 10px 0;
    border-radius: 5px;
    border-left: 3px solid rgba(255, 255, 255, 0.3);
  }

  .ex-app-conditions h5 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: #fff;
  }

  .ex-app-conditions ul {
    margin: 0;
    padding-left: 20px;
  }

  .ex-app-conditions li {
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 0.9);
  }

  .ex-lite-toggle {
    cursor: pointer;
    color: #88ccff;
    transition: color 0.3s ease;
    position: relative;
    padding-right: 25px;
    margin-top: 40px;
    margin-bottom: 20px;
    padding-top: 10px;
    padding-bottom: 10px;
  }

  .ex-lite-toggle:hover {
    color: #aaddff;
  }

  .ex-lite-toggle::after {
    content: "";
    position: absolute;
    right: 120px;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    border-top: 2px solid currentColor;
    border-right: 2px solid currentColor;
    transform: translateY(-50%) rotate(45deg);
    transition: transform 0.3s ease;
  }

  .ex-lite-toggle.active::after {
    transform: translateY(-50%) rotate(135deg);
  }

  .ex-lite-en-toggle::after {
    content: "";
    position: absolute;
    right: 50px;
    top: 50%;
  }

  .ex-lite-content {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
  }

  .ex-manga-book-area {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 30px;
    margin: 50px 0;
  }

  .ex-manga-book-item {
    flex: 1;
    min-width: 300px;
    background-color: rgba(0, 0, 0, 0.5);
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  }

  .ex-manga-book-img {
    width: 100%;
    height: 300px;
    overflow: hidden;
    position: relative;
  }

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

  .ex-manga-book-info {
    padding: 20px;
    text-align: center;
  }

  .ex-manga-book-title {
    font-size: 1.4rem;
    margin-bottom: 15px;
  }

  .ex-manga-book-btn {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
    padding: 12px 30px;
    border-radius: 4px;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
  }

  .ex-manga-book-btn:hover {
    background-color: rgba(255, 255, 255, 0.2);
  }

  .ex-sns-share-section {
    background-color: rgba(0, 0, 0, 0.5);
    text-align: center;
    margin-top: 60px;
    margin-bottom: 60px;
  }

  .ex-content-subtitle-bottombar {
    font-size: 1.4rem;
    margin: 20px 0 15px;
    margin-bottom: 30px;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    padding-bottom: 10px;
  }

  .ex-sns-hashtag {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 5px 5px;
    border-radius: 2px;
  }

  .ex-sns-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 24px;
    margin: 30px 0;
  }

  .ex-sns-button {
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
  }

  .ex-sns-button img {
    object-fit: contain;
  }

  .ex-sns-x {
    background-color: #000000;
    width: 28px;
    height: 28px;
    padding-top: 10px;
  }

  .ex-sns-facebook {
    width: 36px;
    height: 36px;
  }

  @media screen and (max-width: 991px) {}

  @media screen and (max-width: 768px) {
    .ex-content-box {
      padding: 20px;
    }

    .ex-content-title {
      font-size: 1.5rem;
    }

    .ex-content-subtitle {
      font-size: 1.2rem;
    }

    .ex-mode-img {
      width: 80%;
      margin: 15px auto;
    }

    .ex-tab-button {
      padding: 10px;
      font-size: 0.9rem;
    }

    .ex-tab-content {
      padding: 20px;
    }

    .ex-dl-btn-area {
      flex-direction: column;
      align-items: flex-start;
      gap: 10px;
    }

    .ex-dl-btn-area img {
      height: 70px;
    }

    .ex-app-info-container {
      flex-direction: column;
      align-items: center;
      text-align: center;
    }

    .ex-app-image {
      width: 80px;
      height: 80px;
    }

    .ex-app-details {
      align-items: center;
    }

    .ex-dl-btn-area {
      justify-content: center;
    }

    .ex-app-usage-section {
      padding: 15px;
    }

    .ex-app-usage-section h4 {
      font-size: 1.2rem;
    }

    .ex-app-usage-steps {
      margin-left: 20px;
    }

    .ex-highlight-box>.ex-app-info-container {
      padding-bottom: 25px;
      margin-bottom: 25px;
    }

    .ex-lite-toggle {
      margin-top: 30px;
      margin-bottom: 15px;
      font-size: 1rem;
    }

    .ex-highlight-box h4 {
      font-size: 1.1rem;
    }

    .ex-step-with-image {
      flex-direction: column;
    }

    .ex-step-image {
      flex: 0 0 auto;
      width: 200px;
      margin: 15px auto;
    }

    .ex-scan-location-section {
      padding: 20px;
      margin-top: 30px;
    }

    .ex-scan-location-map {
      margin: 15px auto;
      border-width: 1px;
    }

    .ex-scan-images-container {
      grid-template-columns: 1fr;
      gap: 20px;
    }

    .ex-scan-step-label {
      top: 12px;
      left: 12px;
      font-size: 0.8rem;
      padding: 5px 10px;
    }

    .ex-scan-image-item img {
      height: 180px;
    }

    .ex-qa-question {
      font-size: 1.1rem;
    }

    .ex-qa-answer {
      font-size: 0.95rem;
    }

    .ex-qa-section {
      padding: 20px;
    }

    .ex-content-subtitle-bottombar {
      font-size: 1.2rem;
    }

    .ex-manga-book-area {
      flex-direction: column;
    }

    .ex-manga-book-item {
      width: 100%;
    }

    .ex-sns-buttons {
      gap: 30px;
    }

    .ex-sns-button {
      width: 48px;
      height: 48px;
    }

    .ex-sns-button img {
      width: 24px;
      height: 24px;
    }
  }

  @media screen and (max-width: 479px) {
    .ex-content-box {
      padding: 15px;
    }

    .ex-content-title {
      font-size: 1.1rem;
    }

    .ex-content-subtitle {
      font-size: 1.1rem;
    }

    .ex-content-text {
      font-size: 1rem;
    }

    .ex-mode-image {
      width: 100%;
    }

    .ex-highlight-box {
      padding: 15px;
    }

    .ex-highlight-box p {
      font-size: 0.9rem;
    }

    .ex-notice-list {
      margin-left: 15px;
    }

    .ex-tab-button {
      font-size: 0.9rem;
    }

    .ex-tab-button.active {
      font-size: 0.9rem;
    }

    .ex-dl-btn-area img {
      height: 60px;
    }

    .ex-app-info-container {
      gap: 15px;
    }

    .ex-app-image {
      width: 70px;
      height: 70px;
    }

    .ex-app-desc {
      font-size: 0.9rem;
    }

    .ex-highlight-box>.ex-app-info-container {
      padding-bottom: 20px;
      margin-bottom: 20px;
    }

    .ex-lite-toggle {
      margin-top: 25px;
      margin-bottom: 10px;
      font-size: 0.95rem;
      padding: 10px 15px;
    }

    .ex-app-usage-section {
      padding: 12px;
    }

    .ex-app-usage-section h4 {
      font-size: 1.1rem;
    }

    .ex-app-usage-steps {
      margin-left: 15px;
      font-size: 0.9rem;
    }

    .ex-3d-scan-notice {
      padding: 15px;
    }

    .ex-scan-location-section {
      padding: 15px;
      margin-top: 25px;
    }

    .ex-scan-location-section h5 {
      font-size: 1.1rem;
    }

    .ex-scan-image-section {
      margin-bottom: 30px;
    }

    .ex-scan-images-container {
      gap: 15px;
    }

    .ex-scan-step-label {
      top: 10px;
      left: 10px;
      font-size: 0.75rem;
      padding: 4px 8px;
    }

    .ex-scan-image-item img {
      height: 160px;
    }

    .ex-qa-section {
      padding: 15px;
    }

    .ex-qa-question {
      font-size: 1rem;
      padding: 15px 30px 15px 0;
    }

    .ex-qa-answer {
      font-size: 0.9rem;
    }

    .ex-content-subtitle-bottombar {
      font-size: 1.1rem;
    }
  }

  @media screen and (max-width: 376px) {}