:root {
      --navy: #17389a;
      --navy-d: #0f2670;
      --pale: #eef2fb;
      --line: #c9d3ee;
      --text: #222;
      --accent: #e8590c
    }

    * {
      box-sizing: border-box
    }

    html {
      scroll-behavior: smooth;
      scroll-padding-top: 64px
    }

    body {
      margin: 0;
      font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;

      font-family: "Noto Sans JP", "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
      font-weight: 400;
      /* 通常は400、または太めにしたい場合は500や600 */
      line-height: 1.6;
      /* 行間を空けて読みやすくする */

      color: var(--text);
      /*line-height: 1.8;*/
      background: #fff;
      /*font-size: 16px;*/
      -webkit-text-size-adjust: 100%
    }

    img {
      max-width: 100%;
      height: auto;
      display: block
    }

    a {
      color: var(--navy)
    }

    .wrap {
      max-width: 960px;
      margin: 0 auto;
      padding: 0 16px
    }

    /* header */
    header {
      background: #fff;
      position: sticky;
      top: 0;
      z-index: 20;
      border-bottom: 3px solid var(--navy)
    }

    .hd {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 8px 16px;
      max-width: 960px;
      margin: 0 auto
    }

    .hd .logo {
      width: min(300px, 52vw)
    }

    .hd-tel {
      display: none;
      text-decoration: none;
      color: #fff;
      background: var(--accent);
      padding: 8px 16px;
      border-radius: 0;
      font-weight: 700;
      white-space: nowrap
    }

    nav {
      background: var(--navy);
      overflow-x: auto;
      -webkit-overflow-scrolling: touch
    }

    nav ul {
      list-style: none;
      margin: 0 auto;
      padding: 0;
      display: flex;
      max-width: 960px
    }

    nav li {
      flex: 1 0 auto
    }

    nav a {
      display: block;
      color: #fff;
      text-decoration: none;
      text-align: center;
      padding: 10px 14px;
      font-size: 14px;
      font-weight: 600;
      white-space: nowrap;
      border-left: 1px solid rgba(255, 255, 255, .25)
    }

    nav li:first-child a {
      border-left: 0
    }

    nav a:active,
    nav a:hover {
      background: var(--navy-d)
    }

    /* hero */
    .lead-line {
      font-size: 12px;
      color: #666;
      padding: 6px 16px;
      max-width: 960px;
      margin: 0 auto
    }

    .hero img {
      width: 100%;
      border-radius: 0
    }

    @media(min-width:960px) {
      .hero {
        max-width: 960px;
        margin: 0 auto
      }
    }

    /* sections */
    section {
      padding: 36px 0
    }

    section:nth-of-type(even) {
      background: var(--pale)
    }

    h2 {
      margin: 0 0 20px;
      font-size: 21px;
      color: #fff;
      background: linear-gradient(#2a4fc0, var(--navy));
      padding: 8px 16px;
      border-radius: 0px
    }

    h3 {
      margin: 0 0 6px;
      font-size: 17px;
      color: var(--navy);
      border-left: 5px solid var(--navy);
      padding-left: 10px
    }

    p {
      margin: 0 0 12px
    }

    /* call */
    .call {
      background: #fff;
      border: 2px solid var(--navy);
      border-radius: 0px;
      padding: 18px;
      text-align: center
    }

    .call small {
      display: block;
      color: #555
    }

    .call .num {
      display: inline-block;
      font-size: clamp(28px, 8vw, 40px);
      font-weight: 800;
      color: var(--navy);
      text-decoration: none;
      letter-spacing: .02em;
      line-height: 1.3
    }

    .btn {
      display: inline-block;
      margin-top: 8px;
      background: var(--accent);
      color: #fff;
      text-decoration: none;
      font-weight: 700;
      padding: 12px 28px;
      border-radius: 0;
      /* 999px → 0 */
    }

    .fax {
      margin-top: 8px;
      font-size: 14px;
      color: #555
    }

    /* about */
    .about,
    .area {
      grid-template-columns: minmax(0, 1fr)
    }

    .about {
      display: grid;
      gap: 18px;
      align-items: center
    }

    .about img {
      width: 100%
    }

    .about img {
      border-radius: 0;
      border: 1px solid var(--line)
    }

    .slogan {
      font-weight: 700;
      color: var(--navy)
    }

    /* services */
    .cards {
      display: grid;
      gap: 14px
    }

    .card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 0px;
      padding: 16px
    }

    .card p {
      margin: 0;
      font-size: 15px
    }

    /* area */
    .area {
      display: grid;
      gap: 18px;
      align-items: center
    }

    .area img {
      border: 1px solid var(--line);
      border-radius: 0%;
      background: #fff;
      margin: 0 auto
    }

    .tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin: 8px 0 0;
      padding: 0;
      list-style: none
    }

    .tags li {
      background: var(--navy);
      color: #fff;
      border-radius: 0;
      padding: 4px 16px;
      font-weight: 700
    }

    /* access */
    .map {
      position: relative;
      padding-top: 66%;
      border-radius: 0px;
      overflow: hidden;
      border: 1px solid var(--line);
      margin-top: 14px
    }

    .map iframe {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      border: 0
    }

    .addr {
      font-style: normal
    }

    /* table */
    table {
      width: 100%;
      border-collapse: collapse;
      background: #fff;
      font-size: 15px
    }

    th,
    td {
      border: 1px solid var(--line);
      padding: 10px 12px;
      text-align: left;
      vertical-align: top
    }

    th {
      background: var(--pale);
      color: var(--navy);
      width: 8.5em;
      white-space: nowrap
    }

    section:nth-of-type(even) th {
      background: #fff
    }

    /* news */
    .news {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 0px;
      padding: 14px 16px
    }

    .news time {
      color: #666;
      margin-right: 8px
    }

    footer {
      background: var(--navy);
      color: #fff;
      padding: 28px 0 90px;
      text-align: center;
      font-size: 14px
    }

    footer a {
      color: #fff
    }

    footer img {
      margin: 0 auto 10px;
      background: #fff;
      padding: 6px 10px;
      border-radius: 0px
    }

    /* floating call (mobile) */
    .fab {
      position: fixed;
      left: 0;
      right: 0;
      bottom: 0;
      z-index: 30;
      background: var(--accent);
      color: #fff;
      text-align: center;
      text-decoration: none;
      font-weight: 800;
      font-size: 18px;
      padding: 14px 8px calc(14px + env(safe-area-inset-bottom));
      box-shadow: 0 -2px 8px rgba(0, 0, 0, .2)
    }

    .fab small {
      font-weight: 500;
      font-size: 12px;
      margin-left: 6px
    }

    /* menu button (mobile only) */
    .menu-btn {
      display: none;
      align-items: center;
      gap: 8px;
      background: var(--navy);
      color: #fff;
      border: 0;
      padding: 8px 12px;
      font: inherit;
      font-size: 14px;
      font-weight: 700;
      cursor: pointer
    }

    .menu-btn .bars,
    .menu-btn .bars::before,
    .menu-btn .bars::after {
      display: block;
      width: 18px;
      height: 2px;
      background: #fff;
      transition: transform .2s, background .2s
    }

    .menu-btn .bars {
      position: relative
    }

    .menu-btn .bars::before,
    .menu-btn .bars::after {
      content: "";
      position: absolute;
      left: 0
    }

    .menu-btn .bars::before {
      top: -6px
    }

    .menu-btn .bars::after {
      top: 6px
    }

    header.open .menu-btn .bars {
      background: transparent
    }

    header.open .menu-btn .bars::before {
      transform: translateY(6px) rotate(45deg)
    }

    header.open .menu-btn .bars::after {
      transform: translateY(-6px) rotate(-45deg)
    }

    @media(max-width:699px) {
      .hd {
        padding: 6px 12px
      }

      .hd .logo {
        width: min(200px, 48vw)
      }

      .menu-btn {
        display: inline-flex
      }

      nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        max-height: calc(100vh - 80px);
        overflow-y: auto;
        box-shadow: 0 6px 12px rgba(0, 0, 0, .25)
      }

      header.open nav {
        display: block
      }

      nav ul {
        flex-direction: column
      }

      nav a {
        text-align: left;
        padding: 14px 16px;
        border-left: 0;
        border-top: 1px solid rgba(255, 255, 255, .25)
      }

      nav li:first-child a {
        border-top: 0
      }
    }

    @media(min-width:700px) {
      body {
        font-size: 17px
      }

      .hd-tel {
        display: inline-block
      }

      .about {
        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr)
      }

      .area {
        grid-template-columns: 360px minmax(0, 1fr)
      }

      .cards {
        grid-template-columns: 1fr 1fr
      }

      nav ul {
        justify-content: center
      }

      nav li {
        flex: 1
      }

      .fab {
        display: none
      }

      footer {
        padding-bottom: 28px
      }
    }