* { margin: 0; padding: 0; box-sizing: border-box; }
    body { font-family: 'Inter', sans-serif; line-height: 1.6; color: #fff; background: #121212; }
    a { color: inherit; text-decoration: none; }

    header {
      background: #000;
      color: #fff;
      padding: 1.5rem;
      text-align: center;
      border-bottom: 1px solid #333;
    }
    header h1 { font-size: 2rem; letter-spacing: 0.1rem; }

    nav {
      display: flex;
      justify-content: center;
      gap: 2rem;
      background: #1c1c1c;
      padding: 1rem;
      border-bottom: 1px solid #333;
    }
    nav a {
      font-weight: bold;
      font-size: 0.9rem;
      transition: opacity 0.3s;
    }
    nav a:hover { opacity: 0.7; }

    .hero {
      position: relative;
      width: 100%;
      height: 50vh;
      background-size: cover;
      background-position: center;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
    }
    .hero h2 {
      color: white;
      font-size: 2rem;
      text-shadow: 2px 2px 8px rgba(0,0,0,0.7);
      max-width: 90%;
    }

    .section {
      padding: 3rem 1.5rem;
      max-width: 1000px;
      margin: auto;
    }
    .section h2 {
      font-size: 1.8rem;
      color: #f97316;
      margin-bottom: 1rem;
      border-left: 5px solid #f97316;
      padding-left: 0.5rem;
    }
    .section p, .section li {
      color: #ccc;
      font-size: 1rem;
    }
    .services ul {
      list-style: none;
      padding-left: 0;
    }
    .services li {
      margin-bottom: 2rem;
    }
    .service-title {
      font-weight: bold;
      font-size: 1.1rem;
      color: #fff;
      margin-bottom: 0.3rem;
    }
    .service-desc {
      color: #aaa;
      font-size: 0.95rem;
    }

    img.sample {
      width: 100%;
      max-width: 900px;
      border-radius: 8px;
      margin: 2rem auto;
      display: block;
      box-shadow: 0 4px 20px rgba(0,0,0,0.4);
    }

    table {
      width: 100%;
      border-collapse: collapse;
      margin-top: 1rem;
    }
    table, th, td {
      border: 1px solid #444;
    }
    th, td {
      padding: 0.8rem;
      text-align: left;
      font-size: 0.95rem;
    }
    th {
      background: #1c1c1c;
      color: #f97316;
    }

    form {
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }
    input, textarea, button {
      font-size: 1rem;
      padding: 0.8rem;
      border: none;
      border-radius: 4px;
    }
    input, textarea {
      background: #1e1e1e;
      color: #fff;
    }
    button {
      background: #f97316;
      color: #fff;
      font-weight: bold;
      transition: background 0.3s;
    }
    button:hover {
      background: #fb923c;
    }

    footer {
      background: #1c1c1c;
      text-align: center;
      padding: 1.5rem;
      font-size: 0.8rem;
      color: #aaa;
      border-top: 1px solid #333;
    }

    .logo-title { display: flex; align-items: center; justify-content: center; gap: 1rem; }
    .logo {
  height: auto;
  max-height: 60px; /* PC時 */
  width: auto;
}

/* スマホ用に調整（例：画面幅600px以下） */
@media (max-width: 600px) {
  .logo {
    max-height: 35px; /* ← ここで縮小サイズ指定 */
  }
}
    .hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      position: absolute;
      right: 1rem;
      top: 1.5rem;
      cursor: pointer;
    }
    .hamburger span { width: 25px; height: 3px; background: white; }

    #flash-message {
  display: none;
  position: fixed;
  bottom: 10%;
  left: 50%;
  transform: translateX(-50%);
  background: #fb923c;
  color: white;
  padding: 1rem 1.5rem;
  border-radius: 12px;
  font-size: 1rem;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  z-index: 9999;
  opacity: 0;
  transition: opacity 0.5s ease;
  max-width: 90%;
}


    @media (max-width: 600px) {
      header h1 { font-size: 1.5rem; }
      nav { display: none; flex-direction: column; text-align: center; }
      nav.show { display: flex; }
      .hamburger { display: flex; }
      .hero h2 { font-size: 1.3rem; }
    }

    .side-menu {
  position: fixed;
  top: 0;
  right: -70%;
  width: 70%;
  height: 100vh;
  background: #1c1c1c;
  box-shadow: -2px 0 10px rgba(0,0,0,0.5);
  display: flex;
  flex-direction: column;
  padding: 2rem;
  gap: 1.5rem;
  transition: right 0.3s ease;
  z-index: 1001;
}
.side-menu a {
  color: #fff;
  font-size: 1.2rem;
  font-weight: bold;
  text-decoration: none;
}

.overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  background: rgba(0,0,0,0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease;
  z-index: 1000;
}

.side-menu.open { right: 0; }
.overlay.show {
  opacity: 1;
  visibility: visible;
}

.close-btn {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  font-size: 2rem;
  color: white;
  cursor: pointer;
  transition: color 0.3s;
}
.close-btn:hover {
  color: #f97316;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  position: fixed;   /* ← ここが追従のポイント */
  top: 1.2rem;
  right: 1rem;
  z-index: 1002;      /* メニューより上に出す */
  cursor: pointer;
}
.hamburger span {
  width: 25px;
  height: 3px;
  background: white;
  transition: all 0.3s;
}
@media (max-width: 600px) {
  .hamburger {
    display: flex;
  }
}

.social-icons {
  margin-top: 1rem;
  display: flex;
  justify-content: center;
  gap: 1.5rem;
}

.social-icons img {
  width: 24px;
  height: 24px;
  opacity: 0.5;
  transition: opacity 0.3s;
  filter: invert(100%); /* 白に見せる */
}

.social-icons img:hover {
  opacity: 0.9;
}

.bg-video {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  pointer-events: none;
}

.hero {
  position: relative;
  width: 100%;
  height: 50vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero h2 {
  z-index: 1;
  color: white;
  font-size: 2rem;
  text-shadow: 2px 2px 8px rgba(0,0,0,0.7);
  max-width: 90%;
}