/* タクトキーボード 共通スタイル */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:#fff;color:#333;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";font-size:1rem;line-height:1.5}
a{color:#c36;text-decoration:none}
a:hover,a:active{color:#336}
img{max-width:100%;height:auto;border:0}
figure{margin:0 0 1rem}
p{margin:0 0 .9rem}
h1,h2,h3{font-weight:500;line-height:1.2;margin:.5rem 0 1rem}
h1{font-size:2.5rem}
h2{font-size:1.5rem}
section>h2{font-size:1.75rem;margin-top:1.5rem}
.section-title{font-size:2rem;margin-top:1.5rem}
h3{font-size:1.15rem;margin:0 0 8px}
hr{border:0;border-top:1px solid #ddd;margin:1.5rem 0}
.skip-link{position:absolute;left:-9999px}
.skip-link:focus{left:8px;top:8px;z-index:10;background:#fff;padding:8px}

/* ヘッダー・フッター */
.site-header,.site-footer{background:#ffece0;padding:1rem 10px}
.site-logo{display:block;width:72px;margin:0 max(0px,calc((100% - 960px)/2)) 8px}
.site-logo img{display:block}
.site-header nav,.site-footer nav{max-width:960px;margin:0 auto}
.site-header ul,.site-footer ul{display:flex;flex-wrap:wrap;justify-content:center;gap:0;list-style:none;margin:0;padding:0}
.site-header li a,.site-footer li a{display:block;padding:10px 15px}
.site-header [aria-current],.site-footer [aria-current]{font-weight:500}
@media (max-width:575px){.site-header ul,.site-footer ul{justify-content:flex-start}}

/* 本文 */
.site-main{width:100%;max-width:820px;margin:0 auto;padding:0 10px 2rem}
.site-main a{text-decoration:underline}
.site-main table{border-collapse:collapse;width:100%}
.site-main td,.site-main th{border:1px solid #ddd;padding:.5em;vertical-align:top}
.table-wrap{overflow-x:auto;margin-bottom:1rem}
.sub-title{font-size:1.4rem}
.center{text-align:center}

/* 画像 */
.img-row{display:flex;gap:12px;align-items:flex-start;margin-bottom:1rem}
.img-row figure{flex:1 1 0;min-width:0;max-width:240px;margin:0}
.img-row img{display:block;width:100%}
.img-sm{max-width:240px}
.img-md{max-width:360px}
.gallery{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;margin-bottom:2rem}
.gallery figure{margin:0}
.gallery img{display:block;width:100%}
@media (max-width:767px){.gallery{grid-template-columns:repeat(2,1fr)}}

/* 動画・フォーム */
.video{display:block;width:100%;max-width:315px;aspect-ratio:9/16;border:0;margin-bottom:8px}
.video-wrap{display:flex;justify-content:center}
.video-link{margin-bottom:1.5rem}
.form{display:block;width:100%;border:0}

/* トップ */
.lead{font-size:1.15rem;margin-bottom:16px}
.cta{text-align:center}
.cta img{width:200px}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin-bottom:32px}
.card{border:1px solid #e5e5e5;border-radius:8px;padding:16px}
.card ul{margin:0 0 8px;padding-left:1.2em}
.card p{margin:0}
.channel{text-align:center}
.channel a{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:#f00;color:#fff}
.channel svg{fill:currentColor}

/* 使い方・FAQ */
.toc ul{display:flex;flex-wrap:wrap;gap:8px 16px;list-style:none;margin:0 0 24px;padding:0}
details{margin-bottom:.75rem}
summary{display:flex;gap:15px;align-items:flex-start;color:#c36;font-size:1.5rem;font-weight:500;line-height:1.2;cursor:pointer;list-style:none}
summary::-webkit-details-marker{display:none}
summary::before{content:"+";flex:0 0 30px;text-align:center;font-size:30px;line-height:1;font-weight:700}
details[open]>summary{color:#336}
details[open]>summary::before{content:"\2212"}
summary:hover{color:#336}
.answer{padding:1rem 0 .5rem 45px}
@media (max-width:575px){.answer{padding-left:0}}
.contact-mail{font-size:1.25em;font-weight:bold;word-break:break-all}