* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    color: var(--ink);
    background: var(--purple);
    font-family: Manrope, Arial, sans-serif;
}
a { color: inherit; text-decoration: none; }
.shell { width: min(1280px, calc(100% - 64px)); margin-inline: auto; }
.site-header { background: var(--purple); color: #fff; }
.header-inner { min-height: 136px; display: flex; align-items: center; justify-content: space-between; }
.site-header nav { display: flex; align-items: center; gap: 26px; font-size: 18px; }

.original-main { min-height: 62vh; padding-bottom: 110px; background: var(--purple); color: #fff; }
.category-intro { padding-top: 42px; text-align: center; }
.hero-image { display: block; width: 100%; aspect-ratio: 2048 / 860; object-fit: cover; border-radius: 18px; }
.category-intro h1 { margin: 54px 0 18px; font-size: 50px; font-weight: 400; }
.category-intro > p { max-width: 820px; margin: 0 auto; font-size: 19px; line-height: 1.35; }

.series-nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 18px; max-width: 1180px; margin: 38px auto 0; }
.series-nav a { display: grid; min-width: 220px; min-height: 54px; place-items: center; padding: 10px 26px; border-radius: 999px; background: var(--cyan); color: #fff; font-size: 16px; }
.repair-list { display: grid; gap: 100px; margin-top: 100px; }
.repair-card { overflow: hidden; scroll-margin-top: 30px; border-radius: 18px; background: #fff; color: #111; }
.repair-card summary { display: grid; grid-template-columns: 1fr auto; list-style: none; cursor: pointer; }
.repair-card summary::-webkit-details-marker { display: none; }
.repair-card summary > img { grid-column: 1 / -1; width: 100%; height: 188px; object-fit: cover; border-bottom: 1px solid var(--line); }
.price-switch { grid-column: 1 / -1; display: flex; align-items: center; justify-self: end; gap: 22px; padding: 32px 42px 12px; font-size: 16px; }
.price-switch i { position: relative; display: block; width: 64px; height: 38px; border-radius: 999px; background: var(--line); }
.price-switch i::after { content: ''; position: absolute; top: 4px; left: 4px; width: 30px; height: 30px; border-radius: 50%; background: #fff; }
.repair-card summary > strong { padding: 22px 42px 44px; font-size: 34px; font-weight: 400; }
.repair-card summary > strong b { font-size: 24px; }
.repair-card[open] summary > strong b { display: inline-block; transform: rotate(90deg); }
.repair-content { padding: 0 42px 38px; }

.faq-list { padding-top: 80px; }
.faq-list details { margin-bottom: 20px; padding: 0 30px; border-radius: 14px; background: #fff; color: #111; }
.faq-list summary { display: flex; justify-content: space-between; padding: 26px 0; list-style: none; cursor: pointer; font-size: 21px; }
.faq-answer { padding: 0 0 25px; }
.faq-answer section + section { margin-top: 20px; }
.faq-answer strong { display: block; margin-bottom: 4px; font-size: 17px; }
.faq-answer p { margin: 0; line-height: 1.65; }

.site-footer { padding: 70px 0; border-top: 1px solid rgba(255,255,255,.12); background: var(--purple); color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.site-footer p { color: #aaa; }
.site-footer nav { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.page-main { min-height: 65vh; padding-block: 80px; background: #fff; color: #111; }
.page-main h1 { font-size: 52px; }
.button { display: inline-flex; padding: 14px 22px; border-radius: 999px; font: inherit; }
.button-dark { background: #111; color: #fff; }
.notice, .alert { padding: 14px; border-radius: var(--radius-control); background: #fff6cc; }

@media (max-width: 700px) {
    .shell { width: min(100% - 40px, 1280px); }
    .header-inner { min-height: 112px; }
    .site-header nav { gap: 20px; font-size: 16px; }
    .category-intro { padding-top: 30px; }
    .hero-image { border-radius: var(--radius-nested); }
    .category-intro h1 { margin-top: 44px; font-size: 38px; }
    .category-intro > p { font-size: 16px; }
    .series-nav { gap: 14px; }
    .series-nav a { min-width: calc(50% - 8px); min-height: 52px; padding: 8px 15px; font-size: 14px; }
    .repair-list { gap: 100px; margin-top: 90px; }
    .repair-card summary > img { height: 100px; }
    .price-switch { gap: 16px; padding: 25px 30px 8px; font-size: 14px; }
    .price-switch i { width: 58px; height: 36px; }
    .price-switch i::after { width: 28px; height: 28px; }
    .repair-card summary > strong { padding: 20px 30px 38px; font-size: 27px; }
    .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 430px) {
    .shell { width: min(100% - 28px, 1280px); }
    .site-header nav { gap: 14px; }
    .series-nav a { min-width: 100%; }
    .price-switch span { font-size: 12px; }
    .repair-card summary > strong { padding-inline: 20px; font-size: 23px; }
    .repair-content { padding-inline: 20px; }
    .faq-list { padding-top: 54px; }
    .faq-list details { padding-inline: 20px; }
    .faq-list summary { gap: 18px; padding-block: 21px; font-size: 17px; line-height: 1.35; }
    .page-main { padding-block: 52px; }
    .page-main h1 { font-size: 38px; line-height: 1.05; }
}