/* Reset & Core Setup */
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body, .coin-product-wrapper {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      color: #242938;
      line-height: 1.6;
      background: #eaedff url("https://sc02.alicdn.com/kf/Hbd1a7a22a05b4cfdbcbda3a89c28a917t.jpg") repeat center center;
      background-attachment: fixed;
      padding: 40px 20px;
      -webkit-font-smoothing: antialiased;
    }

    .coin-container {
      max-width: 1180px;
      margin: 0 auto;
    }

    /* Card Component */
    .glass-card {
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-radius: 20px;
      border: 1px solid rgba(255, 255, 255, 0.8);
      box-shadow: 0 12px 36px rgba(30, 41, 79, 0.08);
      padding: 40px;
      margin-bottom: 36px;
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }

    .glass-card:hover {
      box-shadow: 0 16px 44px rgba(30, 41, 79, 0.12);
    }

    /* Typography */
    h1, h2, h3, h4 {
      color: #121829;
      font-weight: 700;
      letter-spacing: -0.02em;
    }

    .section-eyebrow {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.12em;
      color: #3b5bdb;
      background: #edf2ff;
      padding: 6px 14px;
      border-radius: 999px;
      margin-bottom: 14px;
    }

    .section-title {
      font-size: 32px;
      margin-bottom: 12px;
      line-height: 1.25;
    }

    .section-subtitle {
      font-size: 16px;
      color: #5c6479;
      max-width: 780px;
      margin-bottom: 32px;
    }

    /* Hero Section */
    .hero-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .hero-img-wrap {
      position: relative;
      border-radius: 16px;
      overflow: hidden;
      box-shadow: 0 12px 32px rgba(18, 24, 41, 0.12);
      border: 2px solid #ffffff;
      background: #ffffff;
    }

    .hero-img-wrap img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.4s ease;
    }

    .hero-img-wrap:hover img {
      transform: scale(1.03);
    }

    .hero-content h1 {
      font-size: 36px;
      line-height: 1.2;
      margin-bottom: 16px;
    }

    .hero-description {
      font-size: 16px;
      color: #4b5568;
      margin-bottom: 24px;
    }

    .badge-pills {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 28px;
    }

    .badge-pill {
      font-size: 13px;
      font-weight: 600;
      background: #f1f3f9;
      color: #2b354f;
      padding: 8px 16px;
      border-radius: 8px;
      border: 1px solid #e2e8f0;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .badge-pill svg {
      width: 14px;
      height: 14px;
      fill: #3b5bdb;
    }

    .spec-quick-list {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
      padding-top: 20px;
      border-top: 1px solid #e9ecef;
    }

    .spec-item {
      display: flex;
      flex-direction: column;
    }

    .spec-label {
      font-size: 12px;
      font-weight: 600;
      text-transform: uppercase;
      color: #868e96;
      letter-spacing: 0.05em;
    }

    .spec-val {
      font-size: 15px;
      font-weight: 700;
      color: #1a202c;
      margin-top: 2px;
    }

    /* 7 Macro Feature Breakdown Cards */
    .macro-feature-card {
      display: grid;
      grid-template-columns: 360px 1fr;
      gap: 32px;
      align-items: center;
      background: #ffffff;
      border-radius: 16px;
      padding: 24px;
      margin-bottom: 24px;
      border: 1px solid #eef2f6;
      box-shadow: 0 4px 16px rgba(18, 24, 41, 0.04);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .macro-feature-card:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(18, 24, 41, 0.08);
    }

    .macro-feature-card:nth-child(even) {
      grid-template-columns: 1fr 360px;
    }

    .macro-feature-card:nth-child(even) .macro-img-box {
      order: 2;
    }

    .macro-feature-card:nth-child(even) .macro-info-box {
      order: 1;
    }

    .macro-img-box {
      border-radius: 12px;
      overflow: hidden;
      position: relative;
      background: #f8f9fa;
      border: 1px solid #edf2f7;
    }

    .macro-img-box img {
      width: 100%;
      height: auto;
      display: block;
      transition: transform 0.35s ease;
    }

    .macro-img-box:hover img {
      transform: scale(1.05);
    }

    .macro-badge-tag {
      position: absolute;
      top: 12px;
      left: 12px;
      background: rgba(18, 24, 41, 0.85);
      backdrop-filter: blur(4px);
      color: #ffffff;
      font-size: 11px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      padding: 4px 10px;
      border-radius: 6px;
    }

    .macro-info-box h3 {
      font-size: 22px;
      margin-bottom: 12px;
      color: #1a202c;
    }

    .macro-info-box p {
      font-size: 15px;
      color: #4a5568;
      margin-bottom: 16px;
      line-height: 1.65;
    }

    .craft-points {
      list-style: none;
      padding: 0;
    }

    .craft-points li {
      font-size: 14px;
      color: #2d3748;
      position: relative;
      padding-left: 20px;
      margin-bottom: 8px;
    }

    .craft-points li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 8px;
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: #3b5bdb;
    }

    /* Specifications Table */
    .specs-table {
      width: 100%;
      border-collapse: separate;
      border-spacing: 0;
      border-radius: 12px;
      overflow: hidden;
      border: 1px solid #e9ecef;
      margin-top: 16px;
    }

    .specs-table th, .specs-table td {
      padding: 16px 20px;
      font-size: 15px;
      text-align: left;
    }

    .specs-table th {
      background: #f8f9fa;
      color: #495057;
      font-weight: 700;
      width: 32%;
      border-bottom: 1px solid #e9ecef;
    }

    .specs-table td {
      background: #ffffff;
      color: #212529;
      font-weight: 500;
      border-bottom: 1px solid #f1f3f5;
    }

    .specs-table tr:last-child th,
    .specs-table tr:last-child td {
      border-bottom: none;
    }

    .specs-table tr:nth-child(even) td {
      background: #fafbfc;
    }

    /* Customization Steps Grid */
    .process-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-top: 24px;
    }

    .process-card {
      background: #ffffff;
      padding: 24px;
      border-radius: 14px;
      border: 1px solid #edf2f7;
      text-align: left;
    }

    .process-num {
      width: 36px;
      height: 36px;
      background: #edf2ff;
      color: #3b5bdb;
      font-weight: 800;
      font-size: 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 10px;
      margin-bottom: 16px;
    }

    .process-card h4 {
      font-size: 17px;
      margin-bottom: 8px;
    }

    .process-card p {
      font-size: 14px;
      color: #64748b;
      line-height: 1.5;
    }

    /* In-Depth FAQ Accordion / Cards */
    .faq-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
      margin-top: 20px;
    }

    .faq-item {
      background: #ffffff;
      padding: 24px;
      border-radius: 14px;
      border: 1px solid #edf2f7;
    }

    .faq-question {
      font-size: 16px;
      font-weight: 700;
      color: #1a202c;
      margin-bottom: 10px;
      display: flex;
      align-items: flex-start;
      gap: 8px;
    }

    .faq-question::before {
      content: "Q";
      display: inline-block;
      color: #3b5bdb;
      font-weight: 800;
    }

    .faq-answer {
      font-size: 14px;
      color: #4a5568;
      line-height: 1.6;
    }

    /* Footer Banner */
    .guarantee-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      padding: 24px;
      background: #f8faff;
      border: 1px dashed #c5d4fb;
      border-radius: 14px;
      margin-top: 32px;
      text-align: center;
    }

    .guarantee-box h5 {
      font-size: 14px;
      color: #1a202c;
      margin-bottom: 4px;
    }

    .guarantee-box p {
      font-size: 12px;
      color: #64748b;
    }

    /* Responsive Adaptation */
    @media (max-width: 900px) {
      .hero-grid,
      .macro-feature-card,
      .macro-feature-card:nth-child(even),
      .process-grid,
      .faq-grid,
      .guarantee-strip {
        grid-template-columns: 1fr;
      }

      .macro-feature-card:nth-child(even) .macro-img-box {
        order: 1;
      }

      .macro-feature-card:nth-child(even) .macro-info-box {
        order: 2;
      }
    }