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h3{font-size:16px!important}
.toc-card{padding:16px;margin:20px 0}
.toc a{padding:10px;font-size:15px}
}
.hero::after{content:'';position:absolute;inset:0;background:radial-gradient(circle at 50% 0%,rgba(124,58,237,.03),transparent 60%);pointer-events:none}
h2,h3{scroll-margin-top:80px}
.container>h2:first-of-type{margin-top:32px}
img{max-width:100%;height:auto;border-radius:12px}

/* 2026-08-04 UI_ENHANCE */
.guide-tools,.practice-starter{margin:14px 0;padding:14px;border-radius:18px;background:rgba(255,255,255,.96);border:1px solid rgba(109,40,217,.10);box-shadow:0 8px 24px rgba(15,23,42,.06)}
.guide-tools{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;align-items:center}.guide-search{display:flex;align-items:center;gap:10px;min-width:0}.guide-search span{font-size:13px;font-weight:800;color:#4c1d95}.guide-search input{width:100%;height:44px;padding:0 14px;border:1px solid #ddd6fe;border-radius:13px;background:#fafafa;color:#111827;font:inherit;outline:none}.guide-search input:focus{border-color:#7c3aed;box-shadow:0 0 0 3px rgba(124,58,237,.12);background:#fff}.guide-actions{display:flex;gap:8px}.guide-actions button{height:42px;padding:0 13px;border-radius:12px;border:1px solid #ddd6fe;background:#fff;color:#6d28d9;font-weight:750;cursor:pointer}.guide-search-status{grid-column:1/-1;min-height:18px;font-size:12px;color:#6b7280}.practice-starter{display:flex;align-items:center;justify-content:space-between;gap:12px;background:linear-gradient(135deg,#ecfdf5,#fff)}.practice-starter strong,.practice-starter small{display:block}.practice-starter strong{color:#14532d;font-size:16px}.practice-starter small{margin-top:2px;color:#64748b;font-size:12px}.practice-starter-actions{display:flex;gap:8px;flex-wrap:wrap}.practice-starter-actions a{display:inline-flex;align-items:center;min-height:40px;padding:0 13px;border-radius:12px;background:#166534;color:#fff;text-decoration:none;font-size:13px;font-weight:800;box-shadow:0 6px 14px rgba(22,101,52,.16)}.section.guide-hidden,.guide-fold.guide-hidden{display:none!important}.section.guide-match{outline:3px solid rgba(124,58,237,.16);outline-offset:2px}
@media(max-width:720px){.guide-tools{grid-template-columns:1fr;padding:12px}.guide-actions{display:grid;grid-template-columns:1fr 1fr}.guide-actions button{width:100%}.guide-search-status{grid-column:auto}.practice-starter{align-items:stretch;flex-direction:column}.practice-starter-actions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}.practice-starter-actions a{justify-content:center;padding:0 7px;font-size:12px}.nav{flex-wrap:nowrap;overflow-x:auto;justify-content:flex-start;-webkit-overflow-scrolling:touch;scrollbar-width:none}.nav::-webkit-scrollbar{display:none}.nav a{flex:0 0 auto;min-height:38px;display:inline-flex;align-items:center}.section{padding:16px 14px}.section h2{font-size:19px!important}.subsection{padding:14px!important}.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}.toc-card{margin:10px 0 18px}.toc{display:grid;grid-template-columns:1fr 1fr}}