*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
:root{--violet:#6d28d9;--violet-dark:#5b21b6;--violet-soft:#ede9fe;--violet-mid:#a78bfa;--amber:#d97706;--amber-soft:#fef3c7;--ink:#3730a3;--text:#1e293b;--muted:#64748b;--line:#ddd6fe;--tile-a:#faf5ff;--tile-b:#fff}
body{font-family:"Noto Sans SC",system-ui,sans-serif;background:#fff;color:var(--text);line-height:1.78;font-size:16px}
a{color:var(--violet-dark);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}

.site-header{background:#fff;border-bottom:3px solid var(--violet);position:sticky;top:0;z-index:320;box-shadow:0 3px 14px rgba(109,40,217,.09)}
.header-inner{max-width:1160px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px;position:relative}
.brand{display:flex;align-items:center;gap:10px;color:#111;font-weight:600;font-size:.93rem}
.brand:hover{text-decoration:none}
.brand img{border-radius:10px;border:2px solid var(--line)}
.brand em{font-style:normal;color:var(--violet-dark);font-weight:700}
.site-nav ul{display:flex;flex-wrap:wrap;gap:6px 18px;list-style:none}
.site-nav a{color:var(--muted);font-size:.9rem;padding:4px 0}
.site-nav a.active,.site-nav a:hover{color:var(--violet);font-weight:600;border-bottom:2px solid var(--amber);text-decoration:none}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--violet-dark);transition:.2s}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.ads-top-bar{background:var(--tile-a);border-bottom:1px solid var(--line);padding:10px 0}
.applist-title{font-size:.78rem;color:var(--violet-dark);text-align:center;margin-bottom:6px}
#ads{display:flex;justify-content:center;flex-wrap:wrap;gap:12px}

.page-wrap{max-width:1160px;margin:0 auto;padding:22px 20px 54px}

.pill-nav{display:flex;flex-wrap:wrap;gap:8px 11px;padding:0 0 24px;margin-bottom:6px;border-bottom:2px dotted var(--line)}
.pill-nav a{font-size:.83rem;padding:6px 15px;border:1.5px solid var(--line);border-radius:6px;color:var(--ink);background:var(--tile-b);transition:all .14s}
.pill-nav a:hover{background:var(--violet-soft);border-color:var(--violet-mid);color:var(--violet-dark);text-decoration:none;font-weight:600;transform:translateY(-1px)}

.checker-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border:3px solid var(--violet);border-radius:4px;overflow:hidden;background:repeating-conic-gradient(var(--tile-a) 0% 25%,var(--tile-b) 0% 50%) 0 0/24px 24px;box-shadow:8px 8px 0 var(--violet-soft)}
.checker-cell{padding:26px 24px;border:1px solid var(--line);min-height:220px;background:rgba(255,255,255,.94);position:relative}
.checker-cell:nth-child(6n+3),.checker-cell:nth-child(6n+4){background:rgba(250,245,255,.96)}
.checker-cell--hero{grid-column:1/-1;background:linear-gradient(135deg,var(--violet-dark) 0%,var(--violet) 55%,var(--violet-mid) 100%);color:#fff;border:none;padding:34px 30px;min-height:auto}
.checker-cell--hero .hero-tag{display:inline-block;font-size:.76rem;font-weight:700;color:var(--violet-dark);background:#fff;padding:5px 15px;border-radius:4px;margin-bottom:14px;letter-spacing:.02em}
.checker-cell--hero h1{font-size:clamp(1.34rem,3.5vw,1.92rem);line-height:1.35;margin-bottom:14px;color:#fff}
.checker-cell--hero p{color:#f5f3ff;font-size:.98rem;margin-bottom:10px;text-align:justify;max-width:860px}
.checker-cell--hero p:last-of-type{margin-bottom:0}
.checker-cell--hero .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.checker-cell--hero .tag-row span{font-size:.77rem;padding:5px 13px;border-radius:4px;background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.32)}

.checker-cell h2{font-size:1.13rem;color:var(--violet-dark);margin-bottom:11px;line-height:1.38;padding-left:10px;border-left:4px solid var(--amber)}
.checker-cell p{margin-bottom:10px;text-align:justify;color:#334155;font-size:.96rem}
.checker-cell p:last-child{margin-bottom:0}
.checker-cell figure{margin:14px 0 0;border-radius:6px;overflow:hidden;border:2px solid var(--line);background:#fff;box-shadow:3px 3px 0 var(--violet-soft)}
.checker-cell figcaption{font-size:.8rem;color:var(--muted);padding:9px 13px;background:var(--tile-a)}

.hint-strip{background:var(--amber-soft);border-left:5px solid var(--amber);padding:12px 16px;margin:12px 0;border-radius:0 6px 6px 0;font-size:.91rem;color:#92400e}

.faq-block{margin-top:38px;padding:28px 26px;background:var(--tile-a);border:2px solid var(--violet);border-radius:4px}
.faq-block>h2{font-size:1.15rem;margin-bottom:16px;color:var(--violet-dark)}
.faq-row{border:1px solid var(--line);margin-bottom:10px;background:#fff;border-radius:6px;overflow:hidden}
.faq-row summary{padding:14px 18px;cursor:pointer;font-weight:500;list-style:none;color:#334155}
.faq-row summary::-webkit-details-marker{display:none}
.faq-row[open] summary{background:var(--violet-soft);border-bottom:1px solid var(--line);color:var(--violet-dark)}
.faq-row p{padding:14px 18px;color:#475569;font-size:.94rem}

.related-block{max-width:1160px;margin:0 auto;padding:0 20px 42px}
.related-block h2{font-size:1.04rem;margin-bottom:12px;color:var(--violet-dark)}
.related-block ul{list-style:none;display:flex;flex-wrap:wrap;gap:10px 18px}
.related-block a{font-size:.9rem}

.site-footer{background:var(--tile-a);border-top:3px solid var(--violet);padding:28px 20px;text-align:center;font-size:.88rem;color:var(--muted)}
.footer-links{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 16px;margin-bottom:10px}
.footer-links a{color:#475569}
.footer-sub{font-size:.82rem;color:var(--violet-dark);margin-top:6px}

.prose-page{max-width:780px;margin:0 auto;padding:32px 20px 48px}
.prose-page h1{font-size:1.4rem;margin-bottom:16px;color:var(--violet-dark)}
.prose-page p{margin-bottom:12px;color:#475569}

@media(max-width:840px){
.checker-grid{grid-template-columns:1fr;border-radius:4px;box-shadow:4px 4px 0 var(--violet-soft)}
.checker-cell--hero{grid-column:1}
.nav-toggle{display:flex}
.site-nav{position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:12px 20px;display:none;box-shadow:0 6px 18px rgba(0,0,0,.07)}
.site-nav.is-open{display:block}
.site-nav ul{flex-direction:column;gap:10px}
.checker-cell--hero h1{font-size:1.3rem}
}