*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC",system-ui,sans-serif;background:#fff;color:#3d2c4a;line-height:1.84;font-size:16px}
a{color:#7c3aed;text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}

.site-header{background:#fff;border-bottom:1px solid #e9d5ff;position:sticky;top:0;z-index:500;box-shadow:0 2px 12px rgba(124,58,237,.04)}
.header-inner{max-width:680px;margin:0 auto;padding:14px 22px;display:flex;align-items:center;justify-content:space-between;gap:14px;position:relative}
.brand{display:flex;align-items:center;gap:10px;color:#2e1065;font-weight:600;font-size:.9rem;line-height:1.38}
.brand em{font-style:normal;color:#7c3aed;font-weight:700}
.site-nav ul{display:flex;flex-wrap:wrap;gap:6px 16px;list-style:none}
.site-nav a{color:#64748b;font-size:.87rem;padding:2px 0}
.site-nav a.active,.site-nav a:hover{color:#7c3aed;font-weight:600;text-decoration:none}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:22px;height:2px;background:#2e1065;border-radius:1px;transition:transform .2s,opacity .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:#faf5ff;border-bottom:1px solid #e9d5ff;padding:10px 0}
.applist-title{font-size:.77rem;color:#64748b;text-align:center;margin-bottom:6px}
#ads{display:flex;justify-content:center;flex-wrap:wrap;gap:12px}

.pillar{max-width:680px;margin:0 auto;padding:0 22px 76px}
.pillar-toc{position:sticky;top:58px;z-index:300;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid #f3e8ff;padding:14px 0 16px;margin-bottom:6px}
.pillar-toc ul{display:flex;flex-wrap:wrap;gap:7px 9px;list-style:none;justify-content:flex-start}
.pillar-toc a{font-size:.73rem;color:#6b7280;background:#faf5ff;padding:5px 12px;border-radius:999px;border:1px solid #ddd6fe;white-space:nowrap;transition:background .15s,color .15s,border-color .15s}
.pillar-toc a.is-active,.pillar-toc a:hover{color:#fff;background:#7c3aed;border-color:#7c3aed;text-decoration:none}

.pillar-hero{padding:38px 0 32px;border-bottom:3px double #e9d5ff;scroll-margin-top:92px}
.pillar-tag{display:inline-block;font-size:.75rem;color:#6d28d9;background:linear-gradient(90deg,#f3e8ff,#fff);border:1px solid #c4b5fd;padding:5px 15px;border-radius:4px 16px 4px 16px;margin-bottom:18px;letter-spacing:.03em}
.pillar-hero h1{font-size:clamp(1.36rem,4.2vw,1.92rem);line-height:1.36;margin-bottom:18px;color:#2e1065;font-weight:700}
.pillar-intro{font-size:1rem;color:#3d2c4a;margin-bottom:13px;text-align:justify}
.pillar-intro:first-of-type::first-letter{float:left;font-size:2.6em;line-height:.82;padding:4px 10px 0 0;color:#7c3aed;font-weight:700}

.pillar-block{padding:32px 0;border-bottom:1px solid #f5f3ff;scroll-margin-top:92px}
.pillar-block h2{font-size:1.1rem;margin-bottom:15px;color:#2e1065;display:flex;align-items:baseline;gap:10px;line-height:1.4}
.pillar-num{font-size:.72rem;font-weight:700;color:#a78bfa;background:#f5f3ff;border:1px solid #ddd6fe;padding:2px 8px;border-radius:4px;flex-shrink:0}
.pillar-block p{margin-bottom:13px;color:#3d2c4a;font-size:.95rem;text-align:justify}

.pillar-quote{background:#faf5ff;border-left:4px solid #a78bfa;padding:16px 20px;margin:18px 0;border-radius:0 12px 12px 0;font-size:.92rem;color:#4c1d95;line-height:1.72}

.pillar-media{margin:22px 0;border-radius:16px;overflow:hidden;border:1px solid #e9d5ff;box-shadow:0 8px 28px rgba(124,58,237,.08)}
.pillar-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.pillar-media figcaption{font-size:.77rem;color:#64748b;padding:11px 18px;background:#faf5ff;line-height:1.52}

.pillar-faq{padding:36px 0 22px;scroll-margin-top:92px}
.pillar-faq>h2{font-size:1.08rem;margin-bottom:20px;color:#2e1065;padding-bottom:10px;border-bottom:2px solid #e9d5ff}
.faq-row{padding:16px 0;border-top:1px solid #f5f3ff}
.faq-row:first-of-type{border-top:none;padding-top:0}
.faq-row h3{font-size:.96rem;font-weight:600;color:#2e1065;margin-bottom:8px}
.faq-row p{font-size:.91rem;color:#475569;margin:0;line-height:1.74}

.pillar-end{padding:32px 0 10px;margin-top:8px;border-top:3px double #e9d5ff}
.pillar-end h2{font-size:1.02rem;margin-bottom:13px;color:#2e1065}
.pillar-end p{font-size:.92rem;color:#475569;margin-bottom:10px;text-align:justify}

.site-footer{background:#faf5ff;border-top:1px solid #e9d5ff;padding:28px 22px;text-align:center;font-size:.85rem;color:#64748b}
.footer-links{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 18px;margin-bottom:10px}
.footer-sub{font-size:.77rem;color:#94a3b8;margin-top:6px}

.prose-page{max-width:680px;margin:40px auto;padding:0 22px 48px}
.prose-page h1{font-size:1.38rem;margin-bottom:16px;color:#2e1065}
.prose-page p{margin-bottom:12px;color:#334155}

@media(max-width:760px){
  .nav-toggle{display:flex}
  .site-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid #e9d5ff;padding:14px 22px;box-shadow:0 8px 24px rgba(46,16,101,.07);z-index:490}
  .site-nav.is-open{display:block}
  .site-nav ul{flex-direction:column;gap:4px}
  .pillar-toc{top:52px}
  .pillar-hero{padding:28px 0 26px}
}