*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Noto Sans SC",system-ui,sans-serif;background:#fff;color:#1e1b4b;line-height:1.78;font-size:16px}
a{color:#6366f1;text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}

.site-header{background:#fff;border-bottom:1px solid #e0e7ff;position:sticky;top:0;z-index:200;box-shadow:0 1px 0 rgba(99,102,241,.06)}
.header-inner{max-width:1160px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;color:#1e1b4b;font-weight:600;font-size:.98rem}
.brand em{font-style:normal;color:#6366f1;font-weight:700}
.site-nav ul{display:flex;flex-wrap:wrap;gap:6px 18px;list-style:none}
.site-nav a{color:#4338ca;font-size:.92rem;opacity:.85}
.site-nav a.active{color:#6366f1;font-weight:600;opacity:1}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:22px;height:2px;background:#4338ca;margin:5px 0;border-radius:1px}

.ads-top-bar{background:#faf5ff;border-bottom:1px solid #ede9fe;padding:10px 0}
#applist .applist-title{font-size:.85rem;color:#7c3aed;margin-bottom:8px}
#ads{display:flex;flex-wrap:wrap;gap:12px}

.dl-shell{max-width:1160px;margin:0 auto;padding:0 20px 56px}

.hero-strip{background:linear-gradient(120deg,#eef2ff 0%,#faf5ff 48%,#fff 100%);border:1px solid #c7d2fe;border-radius:22px;padding:34px 30px 28px;margin:28px 0 18px;position:relative;overflow:hidden}
.hero-strip::after{content:"";position:absolute;top:-40px;right:-40px;width:160px;height:160px;background:radial-gradient(circle,#a5b4fc33 0%,transparent 70%);pointer-events:none}
.hero-strip h1{font-size:clamp(1.38rem,3.8vw,2rem);line-height:1.32;margin-bottom:14px;color:#1e1b4b;max-width:780px}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;font-size:.82rem;color:#4338ca;background:#e0e7ff;padding:6px 16px;border-radius:999px;margin-bottom:14px;font-weight:500}
.hero-kicker::before{content:"";width:6px;height:6px;border-radius:50%;background:#6366f1}
.hero-intro{font-size:1.02rem;color:#3730a3;max-width:760px;margin-bottom:10px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.hero-tags span{font-size:.8rem;padding:5px 12px;border:1px dashed #a5b4fc;border-radius:8px;color:#4338ca;background:#fff}

.jump-row{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 10px;padding:0;list-style:none}
.jump-row a{display:inline-block;font-size:.84rem;padding:7px 15px;border:1px solid #ddd6fe;border-radius:999px;color:#5b21b6;background:#faf5ff;transition:border-color .15s,background .15s}
.jump-row a:hover{border-color:#6366f1;background:#eef2ff;text-decoration:none}

.bento-mosaic{display:grid;grid-template-columns:repeat(12,1fr);gap:14px;margin:22px 0}
.tile{background:#fff;border:1px solid #e0e7ff;border-radius:18px;padding:22px 24px;overflow:hidden;transition:box-shadow .2s}
.tile:hover{box-shadow:0 8px 24px rgba(99,102,241,.08)}
.tile h2{font-size:1.1rem;margin-bottom:10px;color:#1e1b4b;line-height:1.38}
.tile p{margin-bottom:10px;color:#4338ca;font-size:.95rem;opacity:.92}
.tile p:last-child{margin-bottom:0}
.tile figure{margin:0}
.tile figcaption{font-size:.78rem;color:#7c3aed;margin-top:8px;text-align:center;line-height:1.5}

.t-span-7{grid-column:span 7}
.t-span-5{grid-column:span 5}
.t-span-6{grid-column:span 6}
.t-span-4{grid-column:span 4}
.t-span-8{grid-column:span 8}
.t-span-12{grid-column:span 12}
.t-fill{min-height:100%}

.tile-violet{background:linear-gradient(145deg,#faf5ff,#fff);border-color:#ddd6fe}
.tile-indigo{background:#eef2ff;border-color:#c7d2fe}
.tile-warn{background:#fff7ed;border-color:#fed7aa}

.metric-bar{display:flex;flex-wrap:wrap;gap:10px;margin:12px 0 6px}
.metric-bar li{list-style:none;font-size:.88rem;padding:8px 14px;background:#f5f3ff;border-radius:10px;color:#4338ca;border:1px solid #ede9fe}

.tip-rail{border-left:4px solid #6366f1;padding:12px 16px;margin:12px 0;background:#faf5ff;border-radius:0 12px 12px 0;font-size:.92rem;color:#3730a3}

.step-list{counter-reset:dlstep;padding:0;margin:10px 0;list-style:none}
.step-list li{position:relative;padding:10px 0 10px 36px;border-bottom:1px dotted #ddd6fe;font-size:.93rem;color:#4338ca}
.step-list li:last-child{border-bottom:0}
.step-list li::before{counter-increment:dlstep;content:counter(dlstep);position:absolute;left:0;top:10px;width:24px;height:24px;line-height:24px;text-align:center;background:#6366f1;color:#fff;border-radius:50%;font-size:.78rem;font-weight:700}

.faq-block{margin-top:36px;padding-top:28px;border-top:2px solid #e0e7ff}
.faq-block>h2{font-size:1.18rem;margin-bottom:18px;color:#1e1b4b}
.faq-item{border:1px solid #e0e7ff;border-radius:14px;padding:18px 22px;margin-bottom:12px;background:#faf5ff}
.faq-item h3{font-size:1rem;margin-bottom:8px;color:#312e81}

.read-more{padding:24px 0 8px}
.read-more h2{font-size:1.05rem;margin-bottom:10px;color:#1e1b4b}
.read-more ul{padding-left:1.25rem;line-height:1.95;color:#4338ca}

.site-footer{background:#faf5ff;border-top:1px solid #e0e7ff;padding:28px 20px;text-align:center;font-size:.88rem;color:#7c3aed}
.footer-links{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 20px;margin-bottom:10px}

.prose-page{max-width:720px;margin:40px auto;padding:0 20px}
.prose-page h1{font-size:1.4rem;margin-bottom:16px;color:#1e1b4b}
.prose-page h2{font-size:1.1rem;margin:20px 0 10px;color:#312e81}
.prose-page p{margin-bottom:12px;color:#4338ca;line-height:1.75}

.error-page{max-width:480px;margin:80px auto;padding:0 20px;text-align:center}
.error-page h1{font-size:3rem;color:#6366f1;margin-bottom:12px}

@media(max-width:920px){
  .t-span-7,.t-span-5,.t-span-6,.t-span-4,.t-span-8,.t-span-12{grid-column:span 12}
}

@media(max-width:768px){
  .nav-toggle{display:block}
  .site-nav{position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid #e0e7ff;display:none;padding:12px 20px}
  .site-nav.is-open{display:block}
  .site-header{position:relative}
  .hero-strip{padding:24px 18px}
  .tile{padding:18px 16px}
}