* { margin: 0; padding: 0; box-sizing: border-box; }
  body { font-family: 'Inter', sans-serif; color: #1a1a1a; background: #fff; line-height: 1.6; }

  /* 统一主容器宽度 */
  .site-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
  }

  .section-label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 3px;
    color: #c0102a;
    text-transform: uppercase;
    margin-bottom: 8px;
  }
  .section-line {
    width: 38px;
    height: 3px;
    background: #c0102a;
    margin-bottom: 12px;
  }
  .sec-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 44px;
    color: #111;
    line-height: 1.05;
    letter-spacing: 1.5px;
    margin-bottom: 10px;
  }
  .sec-desc {
    font-size: 14px;
    font-weight: 400;
    color: #666;
    line-height: 1.7;
  }

  /* 1. Specifications Section */
  .specs-section {
    padding: 80px 0;
    border-bottom: 1px solid #f0f0f0;
  }
  .specs-table {
    margin-top: 32px;
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border: 1px solid #e8e8e8;
  }
  .specs-table thead tr {
    background: #111;
    color: #fff;
  }
  .specs-table thead th {
    padding: 16px 24px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    text-align: left;
  }
  .specs-table tbody tr {
    border-bottom: 1px solid #eee;
  }
  .specs-table tbody tr:hover { background: #fafafa; }
  .specs-table tbody td {
    padding: 16px 24px;
    font-size: 14px;
    color: #333;
  }
  .specs-table tbody td:first-child {
    font-weight: 600;
    color: #111;
    width: 35%;
  }
  .specs-table tbody td:last-child {
    color: #c0102a;
    font-weight: 600;
  }

  /* 2. Color & Customization Section */
  .color-custom-section {
    padding: 80px 0;
    border-bottom: 1px solid #f0f0f0;
  }
  .color-banner {
    background: #111;
    border-radius: 8px;
    padding: 44px;
    color: #fff;
    margin-bottom: 48px;
  }
  .color-banner .sec-title { color: #fff; }
  .color-banner .sec-desc { color: #aaa; }
  .color-img-frame {
    margin-top: 24px;
    background: #1c1c1c;
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid #333;
    text-align: center;
  }
  .color-img-frame img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
  }

  .custom-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 32px;
  }
  .custom-card {
    background: #fafafa;
    border: 1px solid #e8e8e8;
    border-top: 3px solid #c0102a;
    padding: 28px 24px;
    border-radius: 4px;
  }
  .custom-card-tag {
    font-size: 11px;
    font-weight: 800;
    color: #c0102a;
    letter-spacing: 1px;
    margin-bottom: 8px;
  }
  .custom-card h4 {
    font-size: 16px;
    font-weight: 700;
    color: #111;
    margin-bottom: 8px;
  }
  .custom-card p {
    font-size: 13px;
    color: #666;
    line-height: 1.7;
    margin: 0;
  }

  /* 3. Martial Arts Disciplines (Dark Strip) */
  .scenes-wrapper {
    background: #111;
    color: #fff;
    padding: 80px 0;
  }
  .scenes-wrapper .sec-title { color: #fff; }
  .scenes-wrapper .sec-desc { color: #aaa; }
  .scenes-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 4px;
    margin-top: 40px;
  }
  .scene-card {
    background: #181818;
    padding: 34px 26px;
    border-left: 3px solid transparent;
    transition: all 0.2s;
  }
  .scene-card:hover { border-left-color: #c0102a; }
  .scene-card-icon { font-size: 32px; margin-bottom: 12px; }
  .scene-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
  }
  .scene-card p {
    font-size: 13px;
    color: #888;
    line-height: 1.7;
    margin: 0;
  }

  /* 4. Core Advantages */
  .advantage-section {
    padding: 80px 0;
    border-bottom: 1px solid #f0f0f0;
  }
  .adv-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 36px;
  }
  .adv-card {
    background: #fff;
    padding: 30px 24px;
    border: 1px solid #e8e8e8;
    border-left: 3px solid #111;
    transition: all 0.2s;
  }
  .adv-card:hover {
    border-left-color: #c0102a;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  }
  .adv-num {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 26px;
    color: #c0102a;
    letter-spacing: 1.5px;
    margin-bottom: 8px;
  }
  .adv-card h4 {
    font-size: 15px;
    font-weight: 700;
    color: #111;
    margin-bottom: 8px;
  }
  .adv-card p {
    font-size: 13px;
    color: #666;
    line-height: 1.7;
    margin: 0;
  }

  /* 5. FAQ Section (完全对齐截图排版与全宽) */
  .faq-section {
    padding: 90px 0 110px 0;
    background: #fff;
  }
  .faq-container {
    width: 100%;
  }
  .faq-head-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 46px;
    font-weight: 400;
    color: #111;
    letter-spacing: 2px;
    line-height: 1.1;
    margin-bottom: 12px;
    text-transform: uppercase;
  }
  .faq-head-desc {
    font-size: 13px;
    color: #777;
    margin-bottom: 48px;
    line-height: 1.6;
  }

  .faq-accordion-list {
    width: 100%;
    border-top: 1px solid #e5e5e5;
  }
  .faq-row {
    border-bottom: 1px solid #e5e5e5;
  }
  .faq-btn {
    width: 100%;
    background: none;
    border: none;
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    text-align: left;
  }
  .faq-question-text {
    font-size: 15px;
    font-weight: 700;
    color: #111;
    padding-right: 20px;
    line-height: 1.4;
    transition: color 0.15s ease;
  }
  .faq-btn:hover .faq-question-text {
    color: #c0102a;
  }
  .faq-toggle-icon {
    font-size: 14px;
    font-weight: 400;
    color: #999;
    flex-shrink: 0;
    line-height: 1;
    transition: color 0.15s ease;
  }
  .faq-row.open .faq-toggle-icon {
    color: #c0102a;
  }
  .faq-answer-box {
    display: none;
    padding: 0 0 24px 0;
    font-size: 13px;
    color: #666;
    line-height: 1.8;
    max-width: 960px;
  }
  .faq-row.open .faq-answer-box {
    display: block;
  }

  @media (max-width: 768px) {
    .site-container { padding: 0 20px; }
    .specs-section, .color-custom-section, .scenes-wrapper, .advantage-section, .faq-section { padding: 48px 0; }
    .custom-grid, .scenes-grid, .adv-grid { grid-template-columns: 1fr; }
    .color-banner { padding: 24px; }
  }