body{background:var(--bg)}
a:focus-visible,summary:focus-visible{outline:2px solid var(--purple-dark);outline-offset:5px;border-radius:4px}
.skip-link{position:absolute;top:-100px;left:20px;z-index:50;padding:12px 16px;background:var(--white);border:2px solid var(--purple-dark)}
.skip-link:focus{top:12px}
.qna-header{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-block:16px;border-bottom:1px solid var(--border-gray)}
.brand-logo{width:auto;height:48px;max-width:55vw;object-fit:contain}
.home-link{font-size:14px;font-weight:700;min-height:44px;display:inline-flex;align-items:center;gap:12px;white-space:nowrap}
.qna-intro{max-width:720px;padding:72px 0 48px}
.qna-intro .badge{margin-bottom:24px}
.qna-intro h1{font-size:clamp(36px,5vw,56px);line-height:1.2;letter-spacing:-1.4px}
.intro-lead{font-size:18px;line-height:1.7;color:var(--cool-gray);margin:24px 0}
.editorial-note{font-size:14px;line-height:1.8;color:var(--cool-gray);max-width:640px;margin:0;padding-left:16px;border-left:2px solid var(--purple-300)}
.qna-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:64px;padding:32px 0 88px;border-top:1px solid var(--border-gray);scroll-margin-top:24px}
.topic-nav{position:sticky;top:24px;align-self:start}
.nav-label{margin:0 0 16px;font-size:12px;font-weight:700;color:var(--cool-gray)}
.topic-nav a{display:flex;align-items:center;gap:12px;min-height:52px;padding:12px 8px;color:var(--ink-deep);font-size:15px;font-weight:600;border-bottom:1px solid var(--border-gray)}
.topic-nav a:hover{background:var(--purple-100);text-decoration:none}
.topic-nav a>span{color:var(--purple-dark);font-size:12px}
.topic-nav small{font-size:12px;color:var(--cool-gray);margin-left:auto}
.topic{scroll-margin-top:28px;margin-bottom:64px}
.topic-heading{display:flex;align-items:flex-start;gap:16px;margin:0 0 24px}
.topic-number{font-size:14px;font-weight:700;color:var(--purple-dark);padding-top:6px}
.topic-heading h2{font-size:28px;line-height:1.3;margin:0;color:var(--ink-deep);letter-spacing:-.5px}
.topic-heading p{font-size:14px;color:var(--cool-gray);margin:6px 0 0}
details{border-bottom:1px solid var(--border-gray);scroll-margin-top:24px}
details:first-of-type{border-top:1px solid var(--border-gray)}
summary{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:64px;padding:20px 0;font-size:16px;font-weight:700;line-height:1.5;list-style:none;cursor:pointer;color:var(--ink-deep)}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:22px;font-weight:400;line-height:1;color:var(--purple-dark);flex-shrink:0}
details[open]>summary::after{content:"−"}
summary:hover{color:var(--purple-dark)}
.answer{padding:0 32px 24px 0}
.answer p{font-size:15px;line-height:1.85;color:var(--cool-gray);margin:0}
.answer a{text-decoration:underline;text-underline-offset:3px}
.answer .source{font-size:13px;margin-top:12px}
.closing-note{padding:32px;background:var(--purple-100);border-radius:var(--r)}
.closing-note h2{font-size:22px;line-height:1.4;color:var(--ink-deep);margin:0 0 12px}
.closing-note p{font-size:15px;line-height:1.8;color:var(--cool-gray);margin:0 0 24px}
.closing-note .btn{font-size:14px}
.qna-footer{padding:24px 0 32px;border-top:1px solid var(--border-gray)}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.qna-footer nav{display:flex;gap:20px;flex-wrap:wrap;font-size:13px}
.qna-footer nav a{display:inline-flex;align-items:center;min-height:44px}
@media(max-width:899px){.qna-layout{grid-template-columns:1fr;gap:40px}.topic-nav{position:static;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:24px}.nav-label{grid-column:1/-1;margin-bottom:4px}.question-sections{max-width:720px;width:100%;margin-inline:auto}.qna-intro{padding-top:48px}.topic{margin-bottom:48px}}
@media(max-width:479px){.brand-logo{height:40px}.qna-intro{padding:40px 0 32px}.qna-intro .badge{margin-bottom:20px}.qna-intro h1{font-size:36px}.intro-lead{font-size:16px;margin:20px 0}.topic-nav{column-gap:16px}.topic-nav a{font-size:14px;gap:8px}.topic-heading h2{font-size:24px}summary{font-size:15px;gap:16px}.answer{padding-right:0}.closing-note{padding:24px}.qna-footer nav{gap:16px}}
h1,h2,p,summary{word-break:keep-all;text-wrap:pretty}
summary:focus-visible{outline-offset:-2px}