.article-share{margin-top:40px;padding:26px 0;border-top:1px solid #dce8ef}.article-share__label{margin-bottom:14px;color:#000619;font-size:1rem;font-weight:800}.article-share__actions{display:flex;flex-wrap:wrap;gap:10px}.article-share__actions a,.article-share__actions button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 17px;border:1px solid #b8d5e1;border-radius:6px;background:#fff;color:#087da5;font:inherit;font-size:.95rem;font-weight:700;text-decoration:none;cursor:pointer}.article-share__actions a:hover,.article-share__actions button:hover{border-color:#4fc0e8;background:#eff8fc}.article-share a:focus-visible,.article-share button:focus-visible,.article-share input:focus-visible{outline:3px solid #4fc0e8;outline-offset:3px}.article-share__status{margin-top:12px;color:#426071;font-size:.875rem}.article-share__status:empty{display:none}.article-share__fallback{display:grid;gap:8px;margin-top:14px;font-size:.875rem}.article-share__fallback[hidden]{display:none}.article-share__fallback input{width:100%;padding:12px;border:1px solid #b8d5e1;border-radius:6px;color:#000619;background:#fff;font:inherit}.article-detail{background:#fff;color:#000619}.guide-header{padding:30px 0 54px;background:#000619;color:#fff}.guide-header nav{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px;font-size:.875rem;color:#b8ccd9}.guide-header h1{max-width:1050px;margin:14px 0 22px;color:#fff;font-size:clamp(2rem,3.7vw,3.5rem);line-height:1.12;letter-spacing:-.035em}.guide-deck{max-width:850px;color:#c7d7e0;font-size:1.15rem;line-height:1.7}.guide-meta{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:26px;font-size:.875rem;color:#a9c4d3}.guide-layout{display:grid;grid-template-columns:280px minmax(0,850px);gap:70px;justify-content:center;padding-top:56px;padding-bottom:48px;align-items:start}.guide-sidebar{position:sticky;top:var(--article-sidebar-top, 160px);max-height:calc(100vh - var(--article-sidebar-top, 160px) - 24px);overflow-y:auto;scrollbar-width:none}.guide-sidebar::-webkit-scrollbar{display:none}.guide-sidebar summary{font-size:1.1rem;font-weight:800;cursor:pointer;padding-bottom:18px}.guide-sidebar nav{display:grid;border-top:1px solid #dce8ef}.guide-sidebar nav a{padding:12px 10px;border-left:3px solid transparent;border-bottom:1px solid #dce8ef;font-size:.95rem;color:#426071;line-height:1.5}.guide-sidebar nav a:hover{color:#087da5}.guide-sidebar nav a[aria-current=location]{color:#087da5;border-left-color:#4fc0e8;background:#eff8fc;font-weight:800}.guide-answer{margin-bottom:36px;padding:24px 28px;background:#eff7fa;border-radius:8px}.guide-answer h2{margin:0 0 10px;font-size:1.2rem;color:#000619}.guide-answer p{color:#3b5260;font-size:1.075rem;line-height:1.8}.guide-help{margin-top:30px;padding:24px;background:#eff7fa;border-radius:8px}.guide-help h2{font-size:1.25rem;line-height:1.35;margin:10px 0}.guide-help p{line-height:1.6}.guide-help a{display:block;margin-top:18px;color:#087da5;font-weight:700}.guide-main{min-width:0}.guide-feature{display:block;width:100%;height:auto;border-radius:8px;margin-bottom:40px}.guide-prose{font-size:1.075rem;line-height:1.85;color:#3b5260}.guide-prose h2{margin:48px 0 20px;font-size:clamp(1.6rem,2.4vw,2.1rem);line-height:1.25;color:#000619;letter-spacing:-.02em;scroll-margin-top:140px}.guide-prose h2:first-child{margin-top:0}.guide-prose h3{margin:30px 0 14px;color:#000619;font-size:1.3rem;line-height:1.4;scroll-margin-top:140px}.guide-prose p{margin:0 0 20px}.guide-prose ul{margin:0 0 26px;padding-left:26px}.guide-prose li{padding-left:5px;margin-bottom:10px}.guide-prose li::marker{color:#138fb9}.guide-prose strong{color:#000619}.guide-prose a{color:#087da5;text-decoration:underline;text-underline-offset:3px}.guide-prose figure{margin:34px 0}.guide-prose img{display:block;width:100%;height:auto;object-fit:contain;border-radius:6px}.guide-prose figcaption{padding:12px 0;border-bottom:1px solid #dce8ef;font-size:.875rem;color:#657b88;line-height:1.55}.guide-prose hr{margin:32px 0;border:0;border-top:1px solid #dce8ef}.article-video{aspect-ratio:16/9;margin:30px 0}.article-video iframe{width:100%;height:100%;border:0}.guide-related{padding-bottom:64px;padding-top:30px;border-top:1px solid #dce8ef}.guide-related h2{margin:10px 0 24px;font-size:1.9rem}.guide-related>div{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.guide-related a{display:flex;justify-content:space-between;gap:18px;padding:24px;border:1px solid #dce8ef;border-radius:8px;line-height:1.5;font-weight:700}.guide-related a:hover{border-color:#4fc0e8}.guide-related span{color:#087da5}.article-detail a:focus-visible,.article-detail summary:focus-visible{outline:3px solid #4fc0e8;outline-offset:4px}@media(max-width:1020px){.guide-layout{grid-template-columns:220px minmax(0,1fr);gap:35px}}@media(max-width:720px){.guide-layout{grid-template-columns:1fr;gap:30px;padding-top:30px}.guide-sidebar{position:static;max-height:none;overflow-y:visible}.guide-help{display:none}.guide-related>div{grid-template-columns:1fr}.guide-header{padding-bottom:36px}.guide-feature{margin-bottom:28px}}