@charset "UTF-8";
/* CSS Document */
html {
    scroll-behavior: smooth;
    overflow-x: hidden;
    scroll-padding-top: 70px;
}
body {
    font-size: 16px;
    line-height: 1.8;
    color: #222;
    background: #fff;
    font-family: YakuHanJP, "Noto Sans JP", serif;
}
#wrapper {
    overflow-x: hidden;
}

@media only screen and (max-width: 1024px) {
    body {
        font-size: 14px;
    }
}

a {
    color: #b07898;
}
a:hover {
    color: #555;
}

img {
    width: 100%;
    max-width: 100%;
    vertical-align: bottom;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: bold;
    line-height: 1.4;
    padding: 0.2em 0;
    font-feature-settings: "palt";
    letter-spacing: 0.05em;
}
h1 {
    font-size: 3.0em;
}
h2 {
    font-size: 2.2em;
}
h3 {
    font-size: 1.6em;
}
h4 {
    font-size: 1.35em;
}
h5 {
    font-size: 1.1em;
}
h6 {
    font-size: 1.05em;
}

/*　汎用クラス
**************************************************************/

/* 文字揃え */
.text-left {
    text-align: left;
}
.text-right {
    text-align: right;
}
.text-just {
    text-align: justify;
}
.text-center {
    text-align: center;
}

/*テキスト装飾*/
.text-border-top {
    border-top: 1px solid;
}
.text-border-bottom {
    border-bottom: 1px solid;
}
.text-frame {
    line-height: 1.0 !important;
    border: 1px solid;
    padding: 0.25em 0.5em 0.3em 0.5em;
}
.inline-block {
    display: inline-block;
}
.text-s {
    font-size: 90%;
}
.text-ss {
    font-size: 80%;
}
.text-sss {
    font-size: 70%;
}
.text-l {
    font-size: 107%;
}
.text-ll {
    font-size: 115%;
}
.text-lll {
    font-size: 125%;
}
.text-llll {
    font-size: 135%;
}
.text-lllll {
    font-size: 150%;
}
.text-normal {
    font-weight: normal;
}
.text-bold {
    font-weight: 500;
}
.lh-narrow {
    line-height: 1.5;
}

/*リンクURL*/
.url {
    line-height: 1.5;
    word-break: break-all;
}

/*　マージン・パディング
**************************************************************/
/* マージン0 */
.margin-0 {
    margin: 0;
}
/* 左右マージン */
.mx-auto {
    margin-right: auto;
    margin-left: auto;
}
/* 左右余白 */
.px-0 {
    padding-right: 0;
    padding-left: 0;
}
.px-05 {
    padding-right: 0.5rem;
    padding-left: 0.5rem;
}
.px-10 {
    padding-right: 1.0rem;
    padding-left: 1.0rem;
}
.px-15 {
    padding-right: 1.5rem;
    padding-left: 1.5rem;
}
.px-20 {
    padding-right: 2.0rem;
    padding-left: 2.0rem;
}
.px-30 {
    padding-right: 3.0rem;
    padding-left: 3.0rem;
}
/* 上マージン */
.mt-0 { margin-top: 0!important; }
.mt-1 { margin-top: 1.0rem!important; }
.mt-2 { margin-top: 2.0rem!important; }
.mt-3 { margin-top: 3.0rem!important; }
.mt-4 { margin-top: 4.0rem!important; }
.mt-5 { margin-top: 5.0rem!important; }
/* 下マージン */ 
.mb-0 { margin-bottom: 0!important; }
.mb-1 { margin-bottom: 1.0rem!important; }
.mb-2 { margin-bottom: 2.0rem!important; }
.mb-3 { margin-bottom: 3.0rem!important; }
.mb-4 { margin-bottom: 4.0rem!important; }
.mb-5 { margin-bottom: 5.0rem!important; }
/* 左マージン */
.ml-0 { margin-left: 0!important; }
.ml-1 { margin-left: 1.0rem!important; }
.ml-2 { margin-left: 2.0rem!important; }
.ml-3 { margin-left: 3.0rem!important; }
.ml-4 { margin-left: 4.0rem!important; }
.ml-5 { margin-left: 5.0rem!important; }
/* 右マージン */
.mr-0 { margin-right: 0!important; }
.mr-1 { margin-right: 1.0rem!important; }
.mr-2 { margin-right: 2.0rem!important; }
.mr-3 { margin-right: 3.0rem!important; }
.mr-4 { margin-right: 4.0rem!important; }
.mr-5 { margin-right: 5.0rem!important; }
/* 上パディング */
.pt-0 { padding-top: 0!important; }
.pt-1 { padding-top: 1.0rem!important; }
.pt-2 { padding-top: 2.0rem!important; }
.pt-3 { padding-top: 3.0rem!important; }
.pt-4 { padding-top: 4.0rem!important; }
.pt-5 { padding-top: 5.0rem!important; }
/* 下パディング */ 
.pb-0 { padding-bottom: 0!important; }
.pb-1 { padding-bottom: 1.0rem!important; }
.pb-2 { padding-bottom: 2.0rem!important; }
.pb-3 { padding-bottom: 3.0rem!important; }
.pb-4 { padding-bottom: 4.0rem!important; }
.pb-5 { padding-bottom: 5.0rem!important; }
/* 左パディング */
.pl-0 { padding-left: 0!important; }
.pl-1 { padding-left: 1.0rem!important; }
.pl-2 { padding-left: 2.0rem!important; }
.pl-3 { padding-left: 3.0rem!important; }
.pl-4 { padding-left: 4.0rem!important; }
.pl-5 { padding-left: 5.0rem!important; }
/* 右パディング */ 
.pr-0 { padding-right: 0!important; }
.pr-1 { padding-right: 1.0rem!important; }
.pr-2 { padding-right: 2.0rem!important; }
.pr-3 { padding-right: 3.0rem!important; }
.pr-4 { padding-right: 4.0rem!important; }
.pr-5 { padding-right: 5.0rem!important; }

/*　loading画面
**************************************************************/
.loading {
    /*ローディング画面の縦横幅を画面いっぱいになるように指定*/
    width: 100vw;
    height: 100vh;
    /*ローディング画面の表示位置を固定*/
    position: fixed;
    top: 0;
    left: 0;
    background: #c7dae2;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    /*ローディング画面を0.5秒かけて非表示にする*/
    transition: all 1.0s linear;
    z-index: 999999;
}
  
/*ローディング画面を非表示にする*/
.loading.loaded {
    /*0.5秒かけてopacityを0にする*/
    opacity: 0;
    visibility: hidden;
}
.loading-icon {
    width: 200px;
    height: auto;
    margin-bottom: 30px;
    text-align: center;
}

@keyframes fadeIn {
      from {
        opacity: 0; /* 開始時の透明度 */
        transform: scale(0.95); /* 少し小さくする（オプション） */
      }
      to {
        opacity: 1; /* 終了時の透明度 */
        transform: scale(1); /* 元のサイズに戻す */
      }
    }
.loading-icon img {
    animation: fadeIn 1s ease-out forwards;
}

.spinner {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 3px solid #eee;
    border-left-color: #5c8099; 
    /* アニメーションを1秒かけて実行 */
    animation: spinner-rotation 1s linear infinite;
}
/* アニメーションの設定 */
  @keyframes spinner-rotation {
    0% {
      transform: rotate(0);
    }
    100% {
      transform: rotate(360deg);
    }
}

/*　Page Top ボタン
**************************************************************/
/*ボタンデザイン*/
#page-top a {
	display: block;
    font-size: 0;
    width: 32px;
    height: 32px;
    text-align: center;
    background: #b07898 url("../images/btn_arrow.png") no-repeat center center;
    background-size:55%;
    border-radius:50%;
    position: relative;
}
#page-top a:hover {
	background:#555 url("../images/btn_arrow.png") no-repeat center center;
    background-size:55%;
}
/*リンクを右下に固定*/
#page-top {
	position: fixed;
	right: 5%;
	bottom:50px;
	z-index: 999;
    /*はじめは非表示*/
	opacity: 0;
	transform: translateY(100px);
}
p#page-top {
    margin-bottom:0;
}
/*　上に上がる動き　*/
#page-top.UpMove{
	animation: UpAnime 0.5s forwards;
}
@keyframes UpAnime{
  from {
    opacity: 0;
	transform: translateY(100px);
  }
  to {
    opacity: 1;
	transform: translateY(0);
  }
}
/*　下に下がる動き　*/
#page-top.DownMove{
	animation: DownAnime 0.5s forwards;
}
@keyframes DownAnime{
    from {
        opacity: 1;
      transform: translateY(0);
    }
    to {
        opacity: 1;
      transform: translateY(100px);
    }
}
@media screen and (max-width: 1024px) {
    #page-top {
        right: 15px;
    }
}

/*　footer
**************************************************************/
footer {
    width: 100%;
    height: auto;
    font-size:15px;
    color: #000;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: flex-end;
    background: none;
}
footer .footer-outer {
    padding: 30px 0;
}
footer .footer-logo-outer {
    text-align: center;
    margin: 1.2em 0 0.5em 0;
    display: block;
}
footer .copyright {
    font-size: 12px;
    color: #000;
    letter-spacing: 0.05em;
    line-height: 1.6;
}
footer .footer-logo-outer span.footer-logo {
    display: inline-block;
    vertical-align: middle;
    margin: 0;
}

/* PC・SP 表示・非表示
**************************************************************/
.pconly {
    display: inline-block;
}
.sponly {
    display: none;
}
@media only screen and (max-width: 768px) {
    .pconly {
        display: none;
    }
    .sponly {
        display: inline-block;
    }
}

/*　Contents
**************************************************************/
.contents-block {
    width: 100%;
    margin: 0;
    padding: 0;
}
.contents-outer {
    width: 100%;
}
.contents-inner {
    width: 90%;
    max-width: 900px;
    margin: 0 auto;
    padding: 50px 0;
}
.column-box {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
}
.column-box .col-25,
.column-box .col-30,
.column-box .col-33,
.column-box .col-50,
.column-box .col-70,
.column-box .col-75,
.column-box .col-100 {
    padding: 0 2.5%;
}
.column-box .col-25 {
    width: 25%; 
}
.column-box .col-30 {
    width: 30%; 
}
.column-box .col-33 {
    width: calc(100% / 3); 
}
.column-box .col-50 {
    width: 50%; 
}
.column-box .col-70 {
    width: 70%; 
}
.column-box .col-75 {
    width: 75%; 
}
.column-box .col-100 {
    width: 100%; 
}
.column-box .mx-auto {
    margin-right: auto;
    margin-left: auto;
}
@media screen and (max-width: 800px) {
    .contents-inner {
        width: 90%;
    }
    .column-box .col-30 {
        width: 70%;
        margin: 0 auto 1.5em auto;
    }
    .column-box .col-50 {
        width: 100%; 
    }
    .column-box .col-70 {
        width: 100%; 
    }
    .column-box .col-sp-50 {
        width: 50%;
    }
    .column-box .col-sp-70 {
        width: 70%;
    }
    .column-box .col-sp-100 {
        width: 100%; 
    }
}

/* SNSシェアアイコン
**************************************************************/
.sns-share {
    width: 100%;
    height: auto;
    padding: 15px 0;
    background: #8b9aba;
}
.sns-share dl.share-list {
    text-align: center;
    display:flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
}
.sns-share .share-list dt.share-ttl {
    display: inline-block;
    color: #fff;
    font-size: 11px;
    font-weight: normal;
    line-height:50px;
    text-align: center;
    width: 50px;
}
.sns-share .share-list dd {
    display: block;
    width: 28px;
    height: 28px;
    margin: 0 10px;
}
.sns-share .share-list dd img {
    width: 100%;
    height: auto;
    vertical-align: top;
}
.sns-share .share-list dd img:hover {
    opacity: 0.7;
}

/* 汎用リスト
**************************************************************/
.simple-list {
    font-size: inherit;
    text-indent: -1.0em;
    margin-left: 1.0em;
}

/*　Youtube 埋め込み
**************************************************************/
.youtube {
    width:100%;
    height:auto;
    position: relative;
    padding-bottom: 56.25%;
}
.youtube iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/**************************************************************
伊藤美来 Live 2025　Birth of Pop
**************************************************************/
.wrapper-outer {
    background: #e0edf4;
}
h1, h2, h3, h4, h5, h6 {
    font-weight: 500;
}

/* Header Title Space
**************************************************************/
#title-space {
    width: 100%;
}
/*for PC*/
#header-for-pc {
    display: block;
    width: 100%;
    aspect-ratio: 1 / 0.6;
    margin: 0 auto;
    background: url("../images/pc/main-visual_itoMiku_PC2.jpg") top left no-repeat;
    background-size: 60%;
}
#header-for-pc .title-pc {
    width: 42%;
    margin: 0 0 0 auto;
}
#header-for-sp {
    display: none;
}
#title-space h1 {
    font-size: inherit;
    font-weight: 900;
    text-align: center;
    letter-spacing: 0;
    margin: 0;
    padding: 0;
}
#title-space h1 img {
    width: 100%;
    height: auto;
}
.leadcopy {
    font-size: 1.4vw;
    color: #222;
    font-weight: 500;
    line-height: 1.7;
    text-align: center;
    margin: -0.7em auto 0 auto;
    padding: 0.7em;
    text-shadow:
        2px 2px 0 #fff,  /* 右下 */
        -2px 2px 0 #fff, /* 左下 */
        2px -2px 0 #fff, /* 右上 */
        -2px -2px 0 #fff; /* 左上 */
}
@media only screen and (min-width: 1600px) {
    #header-for-pc {
        max-width: 1600px;
    }
    .leadcopy {
    font-size: 24px;
    }
}
@media only screen and (max-width: 800px) {
    #header-for-pc {
        display: none;
    }
    #header-for-sp {
        display: block;
    }
    #main-title_sp {
        background: url("../images/sp/main-visual_itoMiku_SP2.jpg") top center no-repeat;
        background-size: 100%;
    }
}

/* Main Space
**************************************************************/
#main-contents {
    padding-bottom: 50px;
}
/*　WHAT'S NEW */
#whatsnew {
    width:100%;
    margin: 0 auto;
}
.scroll-box {
    width: 100%;
    height: 150px;
    overflow-y: scroll;
    margin: 16px auto 0 0;
    background: rgba(255, 255, 255, 0.3);
}
ul.whatsnew {
    margin:0.5em 1.5em 1.0em 0;
}
ul.whatsnew li {
    font-size: 1.0em;
    line-height:1.6;
    color:#222;
    display:block;
    border-bottom: 1px dotted #8fa3b5;
    padding:0.5em 0.75em;
    margin-bottom:1.0em;
}
ul.whatsnew li span.update {
    color: #8fa3b5;
    font-weight: bold;
    padding-right: 1.0em;
}
ul.whatsnew li a {
    color: #222;
    padding-right: 1.5em;
}
ul.whatsnew li a:hover {
  color: #6dbdcc;
}
ul.whatsnew li a::after {
    content: "";
    display: inline-block;
    width: 1.1em;
    height: 1.1em;
    background: #222 url("../images/arrow-down.png") no-repeat;
    background-size: 70%;
    background-position: center center;
    border-radius: 50vh;
    margin-left: 0.5em;
    vertical-align: -0.2em;
}

/* スクロールバーカスタマイズ
    simplebar用CSS */
.scroll-box::-webkit-scrollbar {/*デフォルトを非表示*/
    display: none;
}
.simplebar-track {
    background: #f5f5f5;
    border-radius: 2px;
}
.simplebar-track .simplebar-scrollbar.simplebar-visible::before{
    opacity:1;
}
.simplebar-track .simplebar-scrollbar::before{
    background: #b07898;
}

/* ticket info */
.ticket-info {
    display: flex;
    justify-content: space-between;
    width: 100%;
    border: 1px solid #222;
    margin-bottom: 45px;
}
.price {
    font-size: 1.2em;
    color: #222;
    font-weight: 700;
    line-height: 1.7;
    display: flex;
    width: 50%;
    height: 100px;
    justify-content: center;
    align-items: center;
    position: relative;
}
.price::after {
    content: "";
    display: block;
    width: 1px;
    height: 80%;
    background: #222;
    position: absolute;
    right: 0;
    top: 10%;
}
.ticket-caution {
    width: 47%;
    font-size: 0.85em;
    display: flex;
    align-items: center;
    justify-content: flex-start;
}
#overview h4 {
    font-size: 1.1em;
    font-weight: 700;
    margin-bottom: 15px;
}
#overview ul {
    margin-bottom: 0;
}
#overview ul li {
    line-height: 1.6;
    margin-bottom: 5px;
}
#overview p {
    margin-bottom: 20px;
}
#overview .btn-wrap {
    width: 488px;
}
#overview a.btn-ticket {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    min-height: 48px;
    font-size: 1.1em;
    font-weight: 500;
    color: #222;
    border-radius: 8px;
    border: 1px solid #222;
    margin-bottom: 18px;
    padding: 8px 24px 8px 12px;
    position: relative;
}
#overview a.btn-ticket::after {
    content: "";
    display: block;
    width: 18px;
    height: 18px;
    background: url("../images/arrow-right.png") center no-repeat;
    background-size: cover;
    position: absolute;
    top: 15px;
    right: 10px;
}
#overview a.btn-ticket:hover {
    background: #c7dae2;
}
a.text-link {
    color: #222;
    font-size: 1.0em;
    line-height: 1.0;
    text-decoration: underline;
    position: relative;
    display: inline-block;
    padding-right: 1.1em;
}
a.text-link::after {
    content: "";
    display: block;
    width: 0.8em;
    height: 0.8em;
    background: url("../images/arrow-right.png") center no-repeat;
    background-size: cover;
    position: absolute;
    top: 0.2em;
    right: 0;
}
a.text-link:hover {
    color: #b07898;
}
dl.ticket-block {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    width: 100%;
    margin: 0 auto;
}
dl.ticket-block dt {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: #8b9aba;
    color: #fff;
    font-weight: 500;
    font-size: 1.1em;
    line-height: 1.4;
    margin: 0 0 30px 0;
}
dl.ticket-block dt span.dt01, dl.ticket-block dt span.dt02, dl.ticket-block dt span.dt03 {
    width: 4.0em;
    text-align: center;
}
dl.ticket-block dt span.dt04 {
    width: 5.0em;
    text-align: center;
}
dl.ticket-block dd {
    width: calc(100% - 200px);
    margin-left: 80px;
    margin-bottom: 30px;
}

h2.section-title-img {
    text-align: center;
    margin: 15px 0 30px 0;
}
h2.section-title-img img {
    width: auto;
    height: 80px;
}

.info-block {
    margin-bottom: 50px;
    padding-left: 20px;
    position: relative;
}
.info-block::before {
    content: "";
    display: block;
    width: 2px;
    height: 70px;
    background: #b07898;
    position: absolute;
    top: 5px;
    left: 0;
}

ul.simple-list.goods-list {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    margin-top: 10px;
    margin-bottom: 50px;
}
ul.simple-list.goods-list li {
    width: 50%;
}
ul.simple-list.goods-list li:nth-child(2n) {
    margin-left: 2.0em;
    width: calc(50% - 2em);
}

/*　Official Link
**************************************************************/
dl.official-link {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
}
dl.official-link dt {
    width: 28px;
    margin-right: 12px;
}
dl.official-link dd {
    font-size: 0.9em;
    width: calc(50% - 40px);
    margin-bottom: 30px;
}


/*　ブレイクポイント
**************************************************************/
@media only screen and (max-width: 1200px) {
    /*.ticket-info {
        width: 100%;
        margin: 0 auto;
    }*/
}

@media only screen and (max-width: 800px) {
    .contents-inner {
        margin-bottom: 0;
        padding: 30px 0;
    }
    .leadcopy {
        font-size: 1.6em;
        margin-top: -30px;
    }
    .ticket-info {
        flex-direction: column;
    }
    .price {
        width: 100%;
        height: 50px;
    }
    .price br {
        display: none;
    }
    .price::after {
        width: 96%;
        height: 1px;
        top: 100%;
        right: 2%;
    }
    .ticket-info {
        width: 100%;
    }
    .ticket-caution {
        width: 100%;
        padding: 10px 2%;
    }

    dl.ticket-block dt {
        width: 100%;
        height: 40px;
        border-radius: 8px;
        margin-bottom: 15px;
    }
    dl.ticket-block dt span.dt01, dl.ticket-block dt span.dt02, dl.ticket-block dt span.dt03, dl.ticket-block dt span.dt04 {
        width: 100%;
    }
    dl.ticket-block dt span.dt04 span.nakaguro::after {
        content: "・";
        display: inline;
        font-size: inherit;
    }
    dl.ticket-block dd {
        width: 96%;
        margin: 0 2% 30px;
    }
    #overview .btn-wrap {
        width: 100%;
    }
}

@media screen and (max-width: 600px) {
    dl.official-link dd {
        width: calc(100% - 40px);
        margin-bottom: 15px;
    }
    ul.simple-list.goods-list li {
        width: 100%;
    }
    ul.simple-list.goods-list li:nth-child(2n) {
        width: 100%;
        margin-left: 0;
    }
}

@media only screen and (max-width: 480px) {
    .leadcopy {
        font-size: 3.8vw;
    }
    h2.section-title-img img {
        width: 90%;
        height: auto;
    }
    .price {
        font-size: 4.2vw;
    }
    ul.simple-list.goods-list li {
        width: 100%;
    }
}

#goods {
    background: #c7dae2;
    padding: 15px 0 30px 0;
    position:relative;
}
#goods .contents-inner {
    width: 90%;
    max-width: 90%;
    padding: 0;
}
#goods::before {
    content: "";
    display: block;
    width: 100%;
    aspect-ratio: 1 / 0.1;
    background: url("../images/bg_wave_top.png") center bottom no-repeat;
    background-size: 100%;
    position: absolute;
    top: -9vw;
    left: 0;
}
#goods::after {
    content: "";
    display: block;
    width: 100%;
    aspect-ratio: 1 / 0.1;
    background: url("../images/bg_wave_bottom.png") center bottom no-repeat;
    background-size: 100%;
    position: absolute;
    bottom: -8vw;
    left: 0;
}
#info {
    padding-top: 6vw;
}

/* モーダル背景（中央寄せ・フェード） */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background-color: rgba(0,0,0,0.7);
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: opacity 0.28s ease;
}

/* 表示状態 */
.modal.show {
  display: flex;
  opacity: 1;
}

/* コンテンツ（中央・scaleアニメ） */
.modal-content {
  position: relative;
  background: #fff;
  border-radius: 8px;
  padding: 18px;
  max-width: 90%;
  max-height: 90%;
  box-sizing: border-box;
  overflow: hidden;
  transform: scale(0.96);
  transition: transform 0.28s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal.show .modal-content {
  transform: scale(1);
}

/* スライダー（横並び） */
.slider {
  display: flex;
  width: 100%;
  height: 100%;
  transition: transform 0.35s ease;
}

/* 各スライドはモーダル幅に合わせる */
.slide {
  flex: 0 0 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 画像は画面の幅または高さの90%以内に収める */
.slide img {
  max-width: 90vw;
  max-height: 90vh;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}

/* close / nav は必ず手前に出す（ここが重要） */
.close,
.nav {
  position: absolute;
  z-index: 20;
  pointer-events: auto;
  border: none;
  background: rgba(0,0,0,0.6);
  color: #fff;
  cursor: pointer;
  border-radius: 6px;
}

/* close（右上） */
.close {
  top: 12px;
  right: 12px;
  padding: 6px 10px;
  background: #000;
}

/* prev/next（中央左右） */
.nav {
  top: 50%;
  transform: translateY(-50%);
  padding: 8px 12px;
  font-size: 20px;
}
.prev { left: 10px; }
.next { right: 10px; }

/* 小さなスクリーン調整 */
@media (max-width: 600px) {
  .modal-content { padding: 12px; }
  .close { top: 8px; right: 8px; padding: 5px 8px; }
  .nav { padding: 6px 8px; }
}