/* てのひら回転すし — あそびかた・おうちの方へ ( about.html ) */
:root{
  --ink:#2a231f; --ink2:#62554a; --rice:#fbf7ef; --paper:#f6efe1; --hinoki:#efdcb8; --hinoki-d:#b89463;
  --ai:#1d2b47; --ai2:#33476e; --shu:#c4432f; --gold:#d4a547; --matcha:#5f7f36; --night:#140f0b;
  --f-body:"Zen Maru Gothic","Hiragino Maru Gothic ProN","BIZ UDPGothic","Noto Sans JP",sans-serif;
  --f-brush:"Yuji Syuku","Hiragino Mincho ProN","Noto Serif CJK JP","Noto Serif JP",serif;
  color-scheme:light;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--f-body);font-weight:500;font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--shu);text-underline-offset:3px}
.wrap{width:min(100% - 32px,960px);margin:0 auto}

/* ---------- のれんの見出し ---------- */
.hero{background:var(--night);color:var(--rice);padding:0 0 44px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(90deg,rgba(255,226,180,.05) 0 2px,transparent 2px 46px),radial-gradient(70% 60% at 50% 0,rgba(255,170,90,.28),transparent 70%);pointer-events:none}
.noren{display:flex;justify-content:center;gap:6px;margin:0 auto 30px;width:min(100%,520px);padding:0 16px}
.noren i{flex:1;height:88px;background:var(--ai);border-radius:0 0 8px 8px;display:grid;place-items:center;font-style:normal;font-family:var(--f-brush);font-size:32px;color:var(--rice);box-shadow:inset 0 -6px 0 rgba(0,0,0,.18)}
.hero .wrap{position:relative;text-align:center}
.brand{margin:0 0 14px;line-height:0}
.brand img{display:inline-block;height:24px;width:auto}
.hero small{display:block;font-size:14px;font-weight:700;letter-spacing:.3em;color:#e6cf9f}
.hero h1{margin:4px 0 0;font-family:var(--f-brush);font-weight:400;font-size:clamp(40px,8vw,68px);line-height:1.25;letter-spacing:.06em}
.hero .lead{margin:16px auto 0;max-width:34em;color:#e8dcc4;font-size:16px}
.cta{display:inline-flex;align-items:center;gap:10px;margin-top:24px;padding:12px 30px 13px;border-radius:999px;background:var(--shu);color:#fff;font-weight:700;font-size:18px;letter-spacing:.12em;text-decoration:none;box-shadow:0 5px 0 #8e2c1d;touch-action:manipulation}
.cta:active{transform:translateY(3px);box-shadow:0 2px 0 #8e2c1d}
.hero .shot{margin:34px auto 0;max-width:820px;border-radius:14px;overflow:hidden;border:3px solid #3a2a1c;box-shadow:0 18px 40px rgba(0,0,0,.5)}

/* ---------- 節 ---------- */
.sec{padding:56px 0 8px}
.sec-head{display:flex;align-items:baseline;flex-wrap:wrap;gap:4px 14px;margin-bottom:22px}
.sec-head .no{font-family:var(--f-brush);font-size:15px;color:var(--rice);background:var(--ai);border-radius:6px;padding:2px 10px 3px;letter-spacing:.1em;align-self:center}
.sec-head h2{margin:0;font-family:var(--f-brush);font-weight:400;font-size:clamp(28px,4.4vw,38px);line-height:1.3;letter-spacing:.06em}
.sec-head .kana{margin:0;color:var(--ink2);font-size:13px;font-weight:700;letter-spacing:.2em}

.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.step{background:var(--rice);border:2px solid #e2d3b6;border-radius:18px;overflow:hidden}
.step figure{margin:0;border-bottom:2px solid #e2d3b6;aspect-ratio:16/10;overflow:hidden;background:#d9c6a2}
.step figure img{width:100%;height:100%;object-fit:cover}
.step-body{padding:16px 20px 20px}
.step h3{margin:0 0 6px;display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;letter-spacing:.06em}
.step h3 b{flex:none;width:32px;height:32px;border-radius:50%;background:var(--shu);color:#fff;display:grid;place-items:center;font-size:17px}
.step p{margin:0;color:var(--ink2);font-size:15.5px}
.step em{font-style:normal;color:var(--shu);font-weight:700}

.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.card{background:var(--rice);border:2px solid #e2d3b6;border-radius:18px;padding:18px 22px 20px}
.card h3{margin:0 0 4px;font-size:19px;font-weight:700;letter-spacing:.06em;display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
.card h3 small{font-size:13px;color:var(--ink2);font-weight:700;letter-spacing:.1em}
.card ul{margin:6px 0 0;padding:0 0 0 1.2em;color:var(--ink2);font-size:15px}
.card li{margin:2px 0}
.card.ai{background:var(--ai);border-color:var(--ai);color:var(--rice)}
.card.ai ul,.card.ai h3 small{color:#cdd6ea}
.note{margin:14px 0 0;color:var(--ink2);font-size:14px}

.ranks{display:flex;flex-wrap:wrap;gap:10px;margin:10px 0 0;padding:0;list-style:none}
.ranks li{background:#fff;border:2px solid #e2d3b6;border-radius:10px;padding:4px 14px 5px;font-weight:700;font-family:var(--f-brush);font-size:20px}
.ranks li small{font-family:var(--f-body);font-size:12px;color:var(--ink2);margin-left:6px}

.ready{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.ready li{background:var(--rice);border:2px solid #e2d3b6;border-radius:16px;padding:16px 18px;font-size:15px;color:var(--ink2)}
.ready li b{display:block;color:var(--ink);font-size:17px;margin-bottom:4px}

/* ---------- おうちの方へ ---------- */
.parents{margin-top:60px;background:var(--hinoki);padding:56px 0 60px}
.parents .sec{padding-top:0}
.parents .sec+.sec{padding-top:48px}
.pgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.pbox{background:var(--rice);border-radius:16px;padding:20px 22px 22px}
.pbox h3{margin:0 0 6px;font-size:18px;font-weight:700;letter-spacing:.06em}
.pbox p,.pbox li{margin:0;font-size:15px;line-height:1.85;color:var(--ink2)}
.pbox ul{margin:6px 0 0;padding:0 0 0 1.2em}
.pbox p+p{margin-top:8px}

.faq details{background:var(--rice);border-radius:14px;margin:0 0 10px;padding:0 20px}
.faq summary{cursor:pointer;padding:15px 0;font-weight:700;font-size:16px;list-style:none;position:relative;padding-right:28px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:0;top:12px;font-size:22px;color:var(--shu)}
.faq details[open] summary::after{content:"−"}
.faq details p{margin:0;padding:0 0 18px;color:var(--ink2);font-size:15px}   /* 下は padding で ( margin だと 白い枠の 外へ 抜けて、文が 枠の 下端に くっつく ) */

/* ---------- おわり ---------- */
.end{background:var(--night);color:var(--rice);text-align:center;padding:56px 0 30px}
.end h2{margin:0;font-family:var(--f-brush);font-weight:400;font-size:clamp(30px,5vw,44px);letter-spacing:.08em}
.foot{margin-top:40px;font-size:12.5px;color:#cdb98f;display:flex;justify-content:center;flex-wrap:wrap;gap:4px 10px}
.foot>*+*::before{content:"/";display:inline-block;opacity:.55;text-decoration:none;margin-right:10px}
.foot a{color:inherit}

@media (max-width:720px){
  body{font-size:15px}
  .noren i{height:70px;font-size:26px}
  .steps,.cards,.pgrid{grid-template-columns:1fr}
  .ready{grid-template-columns:1fr}
  .sec{padding-top:44px}
  .parents{margin-top:48px;padding:44px 0 48px}
}
@media (prefers-reduced-motion:reduce){.cta:active{transform:none}}
/* せまい 画面：© の 行を 1行に して、リンクは その下へ ( 行の 頭に「/」が 来ない ように ) */
@media (max-width:560px){.foot>span:first-child{flex-basis:100%}.foot>span:first-child+*::before{content:none}}