@charset "utf-8";
/*スライダー*/
.section-slide {
  max-width: 1080px;
  margin: 0 auto 190px;
  padding-inline: 30px;
}
.section-slide .slider p {
  margin-top: 0.5em;
  color: #4d4d4d;
  text-align: right;
}
.section-slide picture,
.section-slide img {
  width: 100%;
  height: auto;
  display: block;
}

/*バナー*/
.banner-inner {
    display: flex;
    justify-content: space-between;
    gap: 4%;
    max-width: 1080px;
    margin: 0 auto 110px;
    padding-inline: 30px;
}
.banner-inner a:hover img {
    opacity: 0.8;
}
/*ロゴ*/
.section-logo {
    display: flex;
    margin: 0 auto 235px;
}
/*コンセプト*/
.section-block {
    margin: 0 auto 250px;
}
.block-inner {
    max-width: 1400px;
    margin-inline: auto;
}
.block-title {
    padding-bottom: 70px;
    color: #4d4d4d;
    font-size: 40px;
    font-size: clamp(2.25rem, 2.176rem + 0.37vw, 2.5rem);
    font-weight: var(--font-weight-Bold);
    letter-spacing: 0.3em;
    text-align: center;
}
.block-text {
    text-align: center;
}
.block-text p {
    margin-bottom: 2.5em;
    color: #4d4d4d;
    font-size: 22px;
    font-size: clamp(1.125rem, 1.051rem + 0.37vw, 1.375rem);
    font-weight: var(--font-weight-Bold);
    line-height: 2;
    letter-spacing: 0.4em;
}
.block-text p .en {
    font-size: 26px;
    font-size: clamp(1.375rem, 1.301rem + 0.37vw, 1.625rem);
}
.block-text p strong {
    font-size: 30px;
    font-size: clamp(1.25rem, 1.023rem + 1.14vw, 1.875rem);
    font-weight: var(--font-weight-Bold);
}
.orange {
    color: var(--primary-color);
}
/*背景*/
.concept-bg1 {
    background: url(./images/wavy_line01.png) no-repeat 50% 70% / 100% auto;
}
.concept-bg2 {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-bottom: 0;
    min-height: 170px;
    background: url(./images/wavy_line03.png) no-repeat 50% 100% / 100% auto;
}
/*放送のネットワーク*/
.section-network {
    padding: 0 0 80px 0;
}
.section-network h2 {
    margin-bottom: 75px;
    color: #4d4d4d;
    font-size: 28px;
    font-size: clamp(1.5rem, 1.426rem + 0.37vw, 1.75rem);
    font-weight: var(--font-weight-Bold);
    text-align: center;
    letter-spacing: 0.3em;
}
.section-network h2 .en {
    font-size: 40px;
    font-size: clamp(2.25rem, 2.176rem + 0.37vw, 2.5rem);
}
.network-panel {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 115px 9%;
}
.network-wrap {
    position: relative;
}
.network-image {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
    width: 25%;
    pointer-events: none;
}
.network-image img {
    height: auto;
}
.panel {
    position: relative;
    width: 100%;
    height: 100%;
    max-width: 543px;
    max-height: 541px;
}
.panel img {
    display: block;
    width: 100%;
    height: auto;
}
.panel .hover {
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    transition: opacity 0.4s ease;
    cursor: pointer;
}
.panel:hover .hover {
    opacity: 1;
}
.sound-inner {
    max-width: 1400px;
    margin-inline: auto;
}
.section-sound {
    margin-bottom: 220px;
}
.section-sound .sound-arrow {
    display: flex;
    justify-content: center;
    margin: 0 auto 55px;
}
.sound-title {
    /*padding-bottom: 160px;
    background: url(./images/wavy_line02.png) no-repeat 50% 28% / 100% auto;*/
    color: var(--primary-color);
    font-size: 30px;
    font-size: clamp(1.25rem, 1.023rem + 1.14vw, 1.875rem);
    font-weight: 900;
    letter-spacing: 0.2em;
    text-align: center;
}
.sound-title::after {
    display: block;
    content: "";
    width: 100%;
    max-width: 1400px;
    height: 186px;
    max-height: 186px;
    margin: 60px auto 120px;
    background: url(./images/wavy_line02.png) no-repeat 50% 50% / 100% auto;
}
.sound-lead {
    margin-bottom: 38px;
    color: #686b6e;
    font-size: 27px;
    font-size: clamp(1.438rem, 1.363rem + 0.37vw, 1.688rem);
    font-weight: 900;
    letter-spacing: 0.1em;
    line-height: 1.6;
    text-align: center;
}
.sound-list {
    display: flex;
    gap: 5%;
}
.sound-item {
    width: 30%;
    max-width: 360px;
}
.sound-item img {
    margin-bottom: 15px;
}
.sound-caption {
    display: flex;
    align-items: center;
    gap: 5px;
}
.sound-caption-number {
    font-size: 66px;
    font-size: clamp(3.875rem, 3.801rem + 0.37vw, 4.125rem);
    font-weight: 400;
    line-height: 1;
}
.sound-caption-text {
    padding-bottom: 0.5em;
    font-size: 20px;
    font-size: clamp(1rem, 0.926rem + 0.37vw, 1.25rem);
    font-weight: 600;
    line-height: 1.4;
}
.concept-message {
    margin-bottom: 205px;
}
.concept-message .block-text {
    margin-top: 20px;
}
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1s ease-out, transform 1s ease-out;
}

.fade-in.show {
  opacity: 1;
  transform: translateY(0);
}

@media screen and (max-width: 768px) {
    /*スライダー*/
    .section-slide {
        margin: 0 auto 20px;
        padding-inline: 15px;
    }
    /*バナー*/
    .banner-inner {
        display: block;
        padding-inline: 15px;
        margin: 0 auto 70px;
    }
    .banner-inner > div {
        display: flex;
        justify-content: center;
        margin-bottom: 12px;
    }
    /*ロゴ*/
    .section-logo {
        margin: 0 auto 80px;
    }
    .section-logo img {
        height: auto;
    }
    /*コンセプト*/
    .section-block {
        margin: 0 auto 80px;
    }
    .block-title {
        min-height: 100%;
        padding-bottom: 40px;
        font-size: 22px;
    }
    .block-text p {
        margin-bottom: 2em;
        padding-inline: 15px;
        font-size: 16px;
        letter-spacing: 0.1em;
    }
    .block-text p .en {
        font-size: 16px;
    }
    .block-text p strong {
        font-size: 20px;
    }
    /* 背景 */
    .concept-bg1 {
        background: url(./images/wavy_line01_sp.png) no-repeat 50% 50% / 100% auto;
    }
    /*放送のネットワーク*/
    .section-network {
        padding: 35px 0 0;
    }
    .section-network h2 {
        margin-bottom: 24px;
        font-size: 19px;
    }
    .section-network h2 .en {
        font-size: 23px;
    }
    .network-panel {
        display: block;
    }
    .network-image {
        position: static;
        transform: none;
        width: 80%;
        margin-inline: auto;
    }
    .network-image img {
        height: auto;
    }
    .panel {
        max-width: 710px;
        max-height: 707px;
        margin-inline: auto;
        margin-bottom: 35px;
    }
    .section-sound {
        margin-bottom: 100px;
    }
    .section-sound .sound-arrow {
        max-width: 79px;
        margin: 0 auto 25px;
    }
    .section-sound .sound-arrow img {
        height: auto;
    }

    .sound-lead {
        margin-bottom: 60px;
        padding-inline: 15px;
        font-size: 15px;
    }
    .sound-list {
        display: block;
    }
    .sound-item {
        width: 100%;
        margin-inline: auto;
        margin-bottom: 40px;
    }
    .sound-item img {
        margin-bottom: 15px;
    }
    .sound-caption {
        gap: 20px;
    }
    .sound-caption-number {
        font-size: 50px;
    }
    .sound-caption-text {
        font-size: 15px;
    }
    .concept-message {
        margin-bottom: 140px;
    }
    .concept-message .block-text {
        margin-top: 0;
    }
}
@media screen and (max-width: 640px) {
    .concept-bg2 {
        min-height: 112px;
        background: url(./images/wavy_line03_sp.png) no-repeat 50% 100% / 100% auto;
    }
    .sound-title {
        margin-bottom: 30px;
        padding-inline: 15px;
        padding-bottom: 50px;
        background: url(./images/wavy_line02_sp.png) no-repeat 50% 100% / 100% auto;
        font-size: 19px;
    }
    .sound-title::after {
        content: none;
    }
}