CSS
/********** 共通 **********/
body {
  margin: 0px;
  padding: 0;
}

a {
  cursor: pointer;
  text-decoration: none;
}

ul {
  padding: 0px;
  margin: 0px;
  list-style: none;
}

.container {
  max-width: 1170px;
  width: 100%;
  margin-right: auto;
  margin-left: auto;
}

nav a {
    color: #fff;
    font-weight: bold;
    font-size: 1.13em;
    text-shadow: 0 2px 10px #5fa87680, 0 0 3px #888a;
}

/********** header・ヘッダー **********/
header {
  background: linear-gradient(90deg, #e6f781 60%, #ade3fa 100%);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
}

.header-main {
  display: flex;
}

.logo {
  width: 30%;
  padding-left: 15px;
}

.logo-main {
/*
  display: flex;
  justify-content: center;
  align-items: center;
  line-height: 4;
*/
}

.logo-main img {
    max-height: 44px;
    width: auto;
    display: block;            /* 余白解消に */
}

header nav {
  width: 70%;
}

header ul {
  display: flex;
  justify-content: flex-end;
  padding-right: 15px;
}

header li a {
  color: #FFF;
  padding: 28px 17px;
  display: block;
}

header li a:hover {
  color: #009e45;
}

header .menu-icon {
    display: none;
    flex-direction: column;
    width: 34px;
    height: 26px;
    justify-content: space-between;
    cursor: pointer;
}
header .menu-icon span {
    display: block;
    height: 5px;
    background: #fff;
    border-radius: 3px;
}

header .nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;  /* ←ここは必須！ */
    width: 100%;                     /* ←画面幅いっぱいに */
    height: 80px;
    /* max-width: 1200px; などは、全体を中央寄せしたい場合のみ */
    padding: 0 24px;
    box-sizing: border-box;
}

header nav ul {
    display: flex;
    gap: 2em;
    list-style: none;
    margin: 0;
    padding: 0;
}

/* スマホサイズでメニューをハンバーガーに */
@media (max-width: 600px) {
    header nav ul {
        display: none;
        position: absolute;
        background: #c7e8f5;
        top: 46px;
        left: 0; right: 0;
        flex-direction: column;
        padding: 1em 0;
        z-index: 100;
    }
    header nav ul.open {
        display: flex;
    }
    header .menu-icon {
        display: flex;
    }
}

/********** slider・スライダー **********/
.swiper {
  margin-top: 80px;
}

.swiper-container {
/*    width: 100vw;*/
    height: 500px;
    margin: 0 auto;
    overflow: hidden;
}

.swiper-slide {
  color: #ffffff;
    width: 100vw;
  text-align: left;
  background-color: #9e9e9e;
}

.slide-contents-title {
  padding-top: 100px;
  font-size: 26px;
  font-weight: bold;
  padding-left: 16px;
}

.slide-contents-text {
  padding-top: 50px;
  font-size: 20px;
  padding-left: 16px;
}

.slide01 {
  background: url(images/kobe01.jpg) no-repeat;
  background-size: cover;
  background-position: center;
}

.slide02 {
  background: url(images/kobe03.jpg) no-repeat;
  background-size: cover;
  background-position: center;
}

.swiper-button {
  position: absolute;
  z-index: 10;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  max-width: 800px;
  margin: auto;
}

.swiper .swiper-button-prev {
  background: url(images/arrow-left.svg) no-repeat;
}

.swiper .swiper-button-next {
  background: url(images/arrow-right.svg) no-repeat;
}

.swiper .swiper-pagination-bullet-active {
  background: #fff;
}

/********* free section・フリーセクション *********/
.free-section-00 .container {
    padding-top: 50px;
    color: #919496;
}

.free-section-01 .container {
  height: 550px;
  padding-top: 70px;
  color: #919496;
}

.free-section-01-A .container {
    height: 840px;
    padding-top: 70px;
    color: #919496;
}

.free-section-02 .container {
  height: 500px;
  padding-top: 60px;
  color: #919496;
}

.free-section-04 .container {
    height: 500px;
    padding-top: 60px;
    color: white;
}

.free-nav {
  display: flex;
}

.free-title {
  font-size: 24px;
  font-weight: bold;
  margin-bottom: 70px;
  padding-left: 0px;
  margin-top: 32px;
}

.free-text {
  font-size: 20px;
  padding-left: 120px;
}

.free-section-00 {
    background: linear-gradient(120deg, #e6f781 61%, #fff 0%);
    background-position: center center;
    background-size: cover;
}

.free-section-01-A,
.free-section-01 {
  background: url(images/bg_14.png);
/*  background: #f5f5f5;*/
  background-position: center center;
  background-size: cover;
}

.free-section-02 {
  background: linear-gradient(120deg, #fff 60%, #a6defc 0%);
  background-position: center center;
  background-size: cover;
}

.free-section-04 {
    background: url(images/DSCF1657_0.JPG);
    background-position: center center;
    background-size: cover;
}

.free-section-04 {
    position: relative;
    width: 100%;
    min-height: 340px;
    /* 背景画像 */
    overflow: hidden;
    /* 右上をカット */
    clip-path: polygon(0 0, 85% 0, 100% 175px, 100% 100%, 0 100%);
}

.free-section-04::before {
    content: "";
    position: absolute;
    z-index: 1;
    inset: 0;
    background: url(images/DSCF1657_0.JPG) center center / cover no-repeat;
    /* ブラー効果 */
    filter: blur(4px) brightness(0.7);
    /* 下地をやや暗くする場合はbrightnessを追加 */
}

/* テキストを上に */
.section-contents {
    position: relative;
    z-index: 2;
    color: #fff;
    max-width: 640px;
    margin-left: auto;
    margin-right: 2vw;
    padding-top: 90px;
    padding-bottom: 70px;
    text-align: left;
}

.section-contents h2 {
    font-size: 1.7em;
    margin-bottom: 24px;
    font-weight: 500;
    letter-spacing: 0.09em;
}

.section-contents p {
    font-size: 1.17em;
    line-height: 1.7;
    margin: 0;
}

.free-section-03 button {
  color: #FFF;
  background-color: #1DB954;
  font-size: 15px;
  border-radius: 500px;
  padding: 20px 40px 20px;
  transition: 1s;
  cursor: pointer;
}

.free-section-03 button:hover {
  background-color: #1ED760;
}

.free-section-00 .contents-main,
.free-section-01 .contents-main,
.free-section-01-A .contents-main,
.free-section-03 .contents-main {
  text-align: center;
  margin: auto;
  font-size: 15px;
  line-height: 1.6;
}

.free-section-02 .contents-main {
    margin: auto;
    font-size: 15px;
    line-height: 1.6;
}

.free-section-00 .free-nav2,
.free-section-01-A .free-nav2,
.free-section-01 .free-nav2 {
    display: flex;
    flex-direction: row;
}

.free-section-00 .contents-text,
.free-section-03 .contents-text {
  padding-bottom: 80px;
}

.free-section-03 .contents-button {
  padding-bottom: 30px;
}

.free-section-03 table{
  width: 100%;
  font-size: 16px;
  padding-left: 50px;
}

.free-section-03 table th{
  position: relative;
  text-align: left;
  width: 18%;
  height: 50px;
}

.free-section-03 table th:after{
  display: block;
  content: "";
  width: 30px;
  height: 2px;
  background-color: #333;
  position: absolute;
  top:calc(50% - 1px);
  right:70px;
}

.free-section-03 table td{
  text-align: left;
  width: 65%;
}

/********* footer・フッター *********/
footer {
  display: flex;
  background: linear-gradient(120deg, #e6f781 20%, #fff 50%);
  padding: 30px 15px 30px;
}

footer nav {
  display: flex;
}

footer a {
  color: #fff;
}

.footer-nav-title {
  color: #919496;
}

.footer-nav-01,
.footer-nav-02 {
  width: 30%;
}

.footer-nav-03 {
  width: 40%;
}

.footer-nav-03 ul{
  display: flex;
  justify-content: flex-end;
}

.footer-nav-03 li {
  padding-left: 30px;
  font-size: 25px;
}

.footer-bottom {
  margin-top: 50px;
}

.copyright {
  text-align: right;
  color: black;
}

.footer-img {
    display: block;
    width: 100%;
    height: auto;    /* ← ここがポイント！ */
    max-height: 210px;  /* ← 画像の高さの上限（お好みで） */
    margin: 0 auto;
    object-fit: contain;  /* 保険的に指定。なくてもOK */
}

@media (max-width: 600px) {
    .footer-img {
        max-height: 72px;  /* スマホでさらに低く */
    }
}


/*-- モバイル --*/
@media (max-width: 600px) {
  .slide-contents-title {
    font-size: 30px;
  }
  
  .slide-contents-text {
    font-size: 24px;
  }
  
  .swiper-button-prev,
  .swiper-button-next {
    display: none;
  }
    
  .free-section-01 .container,
  .free-section-01-A .container,
  .free-section-02 .container {
    padding-top: 100px;
  }
  
  .free-section-01 {
    height: 1340px;
  }

  .free-section-01-A {
    height: 2525px;
  }
    
  .free-section-02 {
    height: 1300px;
  }
    
  .free-title {
    font-size: 30px;
  }
  
  .free-text {
    font-size: 20px;
  }

  .free-section-00 iframe {
    flex-direction: column;
  }
    
  .free-section-01 .free-nav2 {
    flex-direction: column;
    height: 500px;
  }

  .free-section-01 .contents-text {
    margin-right: 0px;
  }    
    
  .free-section-04 {
    min-height: 210px;
    clip-path: polygon(0 0, 95% 0, 100% 40px, 100% 100%, 0 100%);
  }
  .section-contents { padding: 36px 7vw 24px 6vw; }
  .section-contents h2 { font-size: 1.22em; }
  .section-contents p { font-size: 1em; }
  
}