/* Base shared by every article, loaded before each article's own styles. */
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;color:var(--ink)}
body{font-family:Inter,"Hiragino Kaku Gothic ProN",sans-serif}

/* ---------- Product card (shortcode productCard) ---------- */
.product-card{margin:32px 0;padding:22px 24px;border:1px solid rgba(27,28,25,.16);border-radius:10px;background:rgba(255,255,255,.55)}
.product-card p{margin:0}
.product-name{font-family:"Noto Serif JP",serif;font-size:1.0625rem;line-height:1.7;font-weight:500}
.product-note{margin-top:6px!important;font-size:.9375rem;line-height:1.9;color:#45473f}
.product-btns{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px!important}
.product-card .product-btn,.product-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:8px 20px;border-radius:999px;font-size:.875rem;letter-spacing:.04em;text-decoration:none;color:#fff!important}
.product-amazon{background:#1b1c19}
.product-rakuten{background:#a3121a}
.product-btn:hover{opacity:.88}
.product-btn:focus-visible{outline:2px solid #1442c4;outline-offset:3px}
.jump-products{position:fixed;left:16px;max-width:calc(100% - 96px);bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:90;transform:translateY(24px);opacity:0;pointer-events:none;display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:10px 22px;border-radius:999px;background:#1b1c19;color:#fff!important;font-size:.875rem;letter-spacing:.04em;text-decoration:none;white-space:nowrap;box-shadow:0 10px 30px rgba(0,0,0,.22);transition:opacity .3s ease,transform .3s ease}
.jump-products.is-on{opacity:1;transform:none;pointer-events:auto}
@media(prefers-reduced-motion:reduce){.jump-products{transition:none}}
/* Quiz (tap to reveal) */
.quiz{margin:28px 0 32px;border:1px solid rgba(27,28,25,.18);border-radius:12px;background:rgba(255,255,255,.65);overflow:hidden}
.quiz summary{list-style:none;cursor:pointer;display:grid;gap:10px;padding:22px 24px}
.quiz summary::-webkit-details-marker{display:none}
.quiz-label{justify-self:start;font-family:Inter,sans-serif;font-size:.6875rem;letter-spacing:.18em;padding:3px 10px;border-radius:999px;background:#1b1c19;color:#fff}
.quiz-q{font-family:"Noto Serif JP",serif;font-size:1.0625rem;line-height:1.8;color:#1b1c19}
.quiz-tap{justify-self:start;display:inline-flex;align-items:center;min-height:40px;padding:6px 18px;border-radius:999px;border:1px solid #1b1c19;font-size:.875rem;color:#1b1c19}
.quiz[open] .quiz-tap{display:none}
.quiz-a{padding:0 24px 22px;animation:quizIn .35s ease}
.quiz .quiz-answer{margin:0 0 8px;font-family:"Noto Serif JP",serif;font-size:1.0625rem;font-weight:600;color:#1b1c19}
.quiz .quiz-why{margin:0;font-size:.9375rem;line-height:1.9;color:#444740}
@keyframes quizIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){.quiz-a{animation:none}}