:root{color-scheme:light;--ink:#18344f;--muted:#52667c;--blue:#12784e;--blue-deep:#0b4c36;--gold:#eabf50;--paper:#fcfffd;--line:#d9e2ee;--soft:#eff9f3;--warm:#fff8e7;--space-sm:12px;--space-md:24px;--space-lg:48px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px;text-size-adjust:100%}body{margin:0;min-width:320px;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:17px;line-height:1.85}a{color:var(--blue);text-underline-offset:4px}a:hover{color:var(--blue-deep)}a:focus-visible,summary:focus-visible{outline:3px solid var(--gold);outline-offset:5px;border-radius:3px}img{max-width:100%;height:auto}.container{width:min(1120px,calc(100% - 48px));margin-inline:auto}.skip-link{position:absolute;left:16px;top:-80px;z-index:5;background:var(--gold);padding:10px 18px;color:var(--ink)}.skip-link:focus{top:12px}.site-header{border-bottom:1px solid var(--line);background:#f4fbf6}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:96px;padding-block:16px}.brand-link{display:inline-flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none;flex-shrink:0}.brand-link img{width:48px;height:48px;object-fit:contain}.brand-copy{display:grid;line-height:1.35}.brand-copy strong{font-size:23px;letter-spacing:.04em}.brand-copy small{font-size:12px;color:var(--muted);letter-spacing:.08em;margin-top:3px}.header-nav{display:flex;align-items:center;justify-content:flex-end;gap:10px 24px;flex-wrap:wrap;font-size:15px;font-weight:600}.header-nav a{text-decoration:none;min-height:36px;display:inline-flex;align-items:center}.header-nav a[aria-current=page]{text-decoration:underline;text-decoration-color:var(--gold);text-decoration-thickness:3px}.breadcrumb{display:flex;flex-wrap:wrap;gap:7px 12px;padding-top:28px;font-size:14px;color:var(--muted)}.breadcrumb a{color:var(--muted)}.breadcrumb span[aria-hidden]{color:#8d9aad}.guide-hero,.page-hero{position:relative;padding:42px 0 48px;border-bottom:1px solid var(--line);max-width:100%}.eyebrow{font-size:13px;letter-spacing:.12em;color:var(--blue);font-weight:750;margin:0 0 14px;display:flex;align-items:center;gap:10px}.eyebrow:before{content:"";width:24px;height:3px;background:var(--gold)}h1,h2,h3{line-height:1.35;letter-spacing:-.015em;text-wrap:pretty}h1{font-size:clamp(2rem,4.2vw,3.65rem);max-width:900px;margin:0 0 22px;font-weight:760}h2{font-size:clamp(1.5rem,2.6vw,2rem);margin:0 0 20px;font-weight:730}h3{font-size:1.16rem;margin:26px 0 10px}p{margin:0 0 18px}.lead{max-width:760px;font-size:clamp(1.05rem,1.7vw,1.2rem);color:var(--muted);margin-bottom:26px}.actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:10px 22px;background:var(--blue);color:#fbfcff;text-decoration:none;font-weight:700;border:1px solid var(--blue);border-radius:8px;font-size:16px}.button:hover{background:var(--blue-deep);border-color:var(--blue-deep);color:#fbfcff}.button.secondary{background:transparent;color:var(--blue)}.button.secondary:hover{background:var(--soft)}.reading-layout{display:grid;grid-template-columns:minmax(0,1fr) 240px;align-items:start;gap:64px;padding-block:48px 64px}.article-body{min-width:0;max-width:760px;overflow-wrap:anywhere}.article-body>section+section{margin-top:48px}.article-body section{scroll-margin-top:24px}.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 24px}.article-body li+li{margin-top:12px}.article-body li p{margin-top:8px}.article-body strong{font-weight:720}.contents{position:sticky;top:28px;border-top:3px solid var(--gold);padding-top:18px;font-size:15px;line-height:1.65}.contents>strong{display:block;margin-bottom:12px}.contents ul{list-style:none;padding:0;margin:0;display:grid;gap:12px}.contents a{color:var(--muted);text-decoration:none}.contents a:hover{color:var(--blue);text-decoration:underline}.notice{background:var(--soft);padding:22px 24px;border:1px solid var(--line);border-radius:10px;margin-block:24px}.notice.warning{background:var(--warm);border-color:#e8d59f}.notice strong{display:block;margin-bottom:8px}.notice p:last-child{margin-bottom:0}.small-note{font-size:14px;color:var(--muted);line-height:1.75}.brand-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 28px;margin-top:8px}.guide-link{display:block;padding:22px 0;border-bottom:1px solid var(--line);color:var(--ink);text-decoration:none}.guide-link h3{margin:0 0 8px;font-size:1.12rem;color:var(--blue)}.guide-link p{margin:0;font-size:15px;color:var(--muted)}.guide-link:hover h3{text-decoration:underline}.link-list{display:grid;gap:12px}.screenshot-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin:24px 0}.screenshot-grid.three{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.screenshot-grid figure{margin:0;min-width:0;display:flex;flex-direction:column;gap:12px}.screenshot-grid a{display:block;background:#f1f4f9;border:1px solid var(--line);border-radius:10px;padding:12px;text-decoration:none}.screenshot-grid img{display:block;width:100%;max-height:480px;object-fit:contain;object-position:top center}.screenshot-grid figcaption{font-size:14px;line-height:1.65;color:var(--muted)}.screenshot-grid .caption-number{font-weight:750;color:var(--blue);margin-right:6px}.faq-item{border-bottom:1px solid var(--line);padding:18px 0}.faq-item summary{font-weight:700;cursor:pointer;line-height:1.6;padding-right:16px}.faq-item p{margin:14px 0 0}.cta-band{background:var(--blue-deep);color:#f3f7fc;padding:32px;border-radius:12px;margin-top:44px}.cta-band h2{font-size:1.6rem;margin-bottom:14px}.cta-band p{color:#d2e1f0;max-width:640px}.cta-band .button{background:var(--gold);border-color:var(--gold);color:#23344d}.cta-band .button.secondary{background:transparent;color:#f3f7fc;border-color:#91aac2}.site-footer{background:#eef7f2;border-top:1px solid var(--line);padding-block:28px}.footer-inner{display:flex;align-items:flex-start;justify-content:space-between;gap:20px 40px}.footer-inner p{font-size:14px;color:var(--muted);margin:0}.footer-nav{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px 20px;font-size:14px}.footer-nav a{color:var(--ink);text-decoration:none}.footer-nav a:hover{text-decoration:underline}.info-table{width:100%;border-collapse:collapse;margin-block:20px;font-size:15px}.info-table th,.info-table td{text-align:left;vertical-align:top;padding:14px 12px;border-bottom:1px solid var(--line)}.info-table th{background:var(--soft);font-weight:700}.info-table th:first-child,.info-table td:first-child{padding-left:0;width:28%}.info-table th:first-child{padding-left:12px}
@media(max-width:960px){.reading-layout{grid-template-columns:minmax(0,1fr) 210px;gap:36px}.header-inner{align-items:flex-start}.header-nav{max-width:400px;gap:8px 18px}.screenshot-grid.three{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:720px){.container{width:calc(100% - 36px)}.header-inner{flex-direction:column;gap:14px;padding-block:16px}.header-nav{justify-content:flex-start;gap:4px 20px;max-width:none}.brand-link img{width:42px;height:42px}.brand-copy strong{font-size:21px}.header-nav a{min-height:40px}.breadcrumb{padding-top:22px;font-size:13px}.guide-hero,.page-hero{padding-block:30px 34px}h1{font-size:clamp(2rem,8.5vw,2.7rem);line-height:1.3}.lead{font-size:17px}.reading-layout{display:flex;flex-direction:column;gap:32px;padding-block:30px 48px}.contents{position:static;order:-1;width:100%;padding-top:14px}.contents ul{display:flex;flex-wrap:wrap;gap:8px 18px}.article-body{width:100%}.article-body>section+section{margin-top:38px}.notice{padding:18px}.brand-grid{gap:0 20px}.screenshot-grid,.screenshot-grid.three{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.screenshot-grid a{padding:8px}.screenshot-grid img{max-height:380px}.cta-band{padding:24px}.footer-inner{flex-direction:column;gap:18px}.footer-nav{justify-content:flex-start;gap:10px 20px}.info-table th,.info-table td{padding:12px 8px}.info-table th:first-child,.info-table td:first-child{width:31%}}
@media(max-width:420px){.brand-grid{grid-template-columns:1fr}.screenshot-grid,.screenshot-grid.three{grid-template-columns:1fr}.screenshot-grid figure{max-width:340px;margin-inline:auto;width:100%}.screenshot-grid img{max-height:520px}.actions .button{padding-inline:18px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.screenshot-grid img{width:auto;height:auto;max-width:100%;margin-inline:auto}
.header-nav a,.footer-nav a{display:inline-flex;min-height:44px;align-items:center}
@media(max-width:960px){.article-body p a:not(.button),.article-body li>a:not(.guide-link){display:inline-flex;min-height:44px;align-items:center;vertical-align:baseline}}