/* 追加のスタイル - 黒基調のモダンデザイン */
    body {
      background: #000;
    }


    /* =====================
    ナビゲーション
    ===================== */
    .main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 20px 0;
    }

    .main-nav ul {
    display: flex;
    justify-content: center;
    gap: 40px;
    list-style: none;
    }

    .main-nav a {
    color: white;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s;
    position: relative;
    }

    .main-nav a:hover {
    color: #ec407a;
    }

    .main-nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #ec407a;
    transition: width 0.3s;
    }

    .main-nav a:hover::after {
    width: 100%;
    }

    #order {
      max-width: 900px;
      margin: 0 auto;
      padding: 60px 20px;
      line-height: 1.9;
      color: #e0e0e0;
      background: #000;
      margin-top: 60px;
    }

    #order h2 {
      font-size: 1.8em;
      font-weight: 700;
      margin-top: 60px;
      margin-bottom: 30px;
      padding-bottom: 15px;
      border-bottom: 2px solid #e0e0e0;
      color: #fff;
    }

    #order h2:first-of-type {
      margin-top: 0;
    }

    #order h3 {
      font-size: 1.3em;
      font-weight: 700;
      margin-top: 40px;
      margin-bottom: 20px;
      color: #fff;
    }

    #order p {
      color: #d0d0d0;
    }

    .alert-box {
      background: #1a1a1a;
      color: white;
      padding: 25px 30px;
      margin: 30px 0;
      border-radius: 4px;
      border: 1px solid #333;
    }

    .alert-box strong {
      display: block;
      font-size: 1.2em;
      margin-bottom: 12px;
      color: #fff;
    }

    .discount-conditions {
      background: #1a1a1a;
      padding: 20px 25px;
      margin: 25px 0;
      border-radius: 4px;
      border: 1px solid #333;
    }

    .discount-conditions strong {
      display: block;
      margin-bottom: 12px;
      font-weight: 700;
      color: #fff;
    }

    .discount-conditions ul {
      margin: 10px 0 0 0;
      padding-left: 20px;
      color: #d0d0d0;
    }

    .discount-conditions ul li {
      margin-bottom: 8px;
    }

    .discount-conditions p {
      color: #999;
    }

    .contact-list {
      list-style: none;
      padding: 0;
      margin: 20px 0;
    }

    .contact-list li {
      padding: 15px 0;
      font-size: 1.05em;
      border-bottom: 1px solid #333;
      color: #d0d0d0;
    }

    .contact-list li:last-child {
      border-bottom: none;
    }

    .contact-list a {
      color: #fff;
      text-decoration: none;
      font-weight: 600;
      border-bottom: 1px solid #fff;
      transition: opacity 0.3s;
    }

    .contact-list a:hover {
      opacity: 0.6;
    }

    .flow-list {
      counter-reset: flow-counter;
      list-style: none;
      padding: 0;
      margin: 30px 0;
    }

    .flow-list li {
      counter-increment: flow-counter;
      position: relative;
      padding: 25px 25px 25px 80px;
      margin-bottom: 20px;
      background: #1a1a1a;
      border-radius: 4px;
      min-height: 60px;
      border: 1px solid #333;
      color: #d0d0d0;
    }

    .flow-list li::before {
      content: counter(flow-counter);
      position: absolute;
      left: 25px;
      top: 25px;
      width: 45px;
      height: 45px;
      background: #fff;
      color: #000;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
      font-size: 1.3em;
    }

    .flow-list li strong {
      display: block;
      margin-bottom: 10px;
      font-size: 1.1em;
      font-weight: 700;
      color: #fff;
    }

    .template-list {
      list-style: none;
      padding: 0;
      margin: 25px 0;
    }

    .template-list li {
      padding: 18px 25px;
      margin-bottom: 12px;
      background: #1a1a1a;
      border-radius: 4px;
      transition: background 0.3s;
      border: 1px solid #333;
      color: #d0d0d0;
    }

    .template-list li:hover {
      background: #252525;
    }

    .template-list li strong {
      font-weight: 700;
      color: #fff;
      font-size: 1.05em;
    }

    .price-section {
      background: #1a1a1a;
      border: 1px solid #333;
      border-radius: 4px;
      padding: 30px;
      margin: 30px 0;
    }

    .price-list {
      list-style: none;
      padding: 0;
      margin: 20px 0;
    }

    .price-list > li {
      padding: 20px;
      margin-bottom: 15px;
      background: #000;
      border-radius: 4px;
      border: 1px solid #333;
      color: #d0d0d0;
    }

    .price-list strong {
      color: #fff;
      font-size: 1.15em;
      font-weight: 700;
    }

    .price-list s {
      color: #666;
      margin-right: 10px;
    }

    .price-list small {
      color: #999;
    }

    .price-highlight {
      color: #ec407a;
      font-size: 1.4em;
      font-weight: 900;
    }

    .option-list {
      list-style: none;
      padding: 0;
      margin: 25px 0;
    }

    .option-list li {
      padding: 15px 20px;
      margin-bottom: 10px;
      background: #1a1a1a;
      border-radius: 4px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-left: 3px solid #fff;
      border: 1px solid #333;
      border-left: 3px solid #fff;
      color: #d0d0d0;
    }

    .option-list strong {
      font-weight: 700;
      color: #fff;
    }

    .notice-list {
      list-style: none;
      padding: 0;
      margin: 25px 0;
    }

    .notice-list li {
      padding: 15px 20px;
      margin-bottom: 12px;
      background: #1a1a1a;
      border-left: 3px solid #fff;
      border-radius: 4px;
      border: 1px solid #333;
      border-left: 3px solid #fff;
      color: #d0d0d0;
    }

    .notice-list li small {
      color: #999;
    }

    .note {
      background: #1a1a1a;
      padding: 18px 25px;
      border-radius: 4px;
      margin: 20px 0;
      font-size: 0.95em;
      color: #999;
      line-height: 1.8;
      border: 1px solid #333;
    }

    .info-box {
      background: #1a1a1a;
      border: 1px solid #333;
      padding: 20px 25px;
      border-radius: 4px;
      margin: 20px 0;
      color: #d0d0d0;
    }

    @media (max-width: 768px) {
      #order {
        padding: 40px 20px;
      }

      #order h2 {
        font-size: 1.5em;
      }

      .flow-list li {
        padding-left: 70px;
      }

      .flow-list li::before {
        width: 40px;
        height: 40px;
        font-size: 1.1em;
      }
    }