/* ============================================================
   通玄 TONGXUAN · 术法介绍页 fa.css（W6「找得到」2026-09-05）
   由 scripts/build-guides.mjs 生成的 pages/fa-<tech>.html 共用；纸底字色走 --paper-ink / --paper-ink-soft（G54）
   ============================================================ */
[hidden] { display: none !important; }
.fa-main { padding-top: 56px; }
.fa-wrap { max-width: 860px; }
.fa-cta { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin: 22px 0 0; }
.fa-toc { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 28px; }
.fa-toc a { display: inline-flex; align-items: center; min-height: 36px; padding: 0 14px; border-radius: 999px; font-size: 13px; letter-spacing: 0.1em; color: var(--paper-ink-soft); text-decoration: none; border: 1px solid rgba(150, 114, 58, 0.35); background: rgba(255, 253, 246, 0.7); }
.fa-toc a:hover { color: #7a5c1e; border-color: rgba(122, 92, 30, 0.6); }
.fa-sec { margin: 0 0 40px; padding-top: 6px; scroll-margin-top: calc(var(--nav-h) + 16px); }
.fa-sec .section-eyebrow { display: block; margin-bottom: 6px; }
.fa-title { margin: 0 0 14px; font-family: var(--font-serif); font-size: 24px; letter-spacing: 0.16em; color: var(--paper-ink); }
.fa-lead { margin: 0 0 12px; font-family: var(--font-serif); font-size: 17px; line-height: 1.8; letter-spacing: 0.04em; color: var(--paper-ink); }
.fa-h { margin: 22px 0 8px; font-family: var(--font-serif); font-size: 17px; letter-spacing: 0.12em; color: #7a5c1e; }
.fa-p { margin: 0 0 10px; font-size: 14.5px; line-height: 1.85; color: var(--paper-ink); }
.fa-p.muted { color: var(--paper-ink-soft); font-size: 13px; }
.fa-p a, .fa-books a { color: #7a5c1e; }
.fa-ul { margin: 0 0 12px; padding-left: 1.3em; font-size: 14.5px; line-height: 1.85; color: var(--paper-ink); }
.fa-ul li { margin: 0 0 4px; }
.fa-card { margin: 0 0 12px; padding: 14px 16px; border-radius: 12px; background: rgba(255, 253, 246, 0.85); border: 1px solid rgba(150, 114, 58, 0.3); }
.fa-card h4 { margin: 0 0 8px; font-family: var(--font-serif); font-size: 15px; letter-spacing: 0.1em; color: #7a5c1e; }
.fa-card dl { display: grid; grid-template-columns: minmax(6em, 10em) minmax(0, 1fr); gap: 6px 14px; margin: 0; font-size: 13.5px; line-height: 1.7; }
.fa-card dt { color: var(--paper-ink-soft); }
.fa-card dd { margin: 0; color: var(--paper-ink); }
.fa-faq { display: grid; gap: 8px; }
.fa-faq-item { padding: 10px 14px; border-radius: 10px; background: rgba(255, 253, 246, 0.85); border: 1px solid rgba(150, 114, 58, 0.3); }
.fa-faq-item summary { cursor: pointer; font-family: var(--font-serif); font-size: 15px; letter-spacing: 0.06em; color: var(--paper-ink); min-height: 32px; display: flex; align-items: center; }
.fa-faq-item p { margin: 8px 0 2px; font-size: 14px; line-height: 1.8; color: var(--paper-ink-soft); }
.fa-books { margin: 0 0 8px; padding-left: 1.2em; font-size: 15px; line-height: 2; font-family: var(--font-serif); }
.fa-foot { margin: 40px 0 0; font-size: 12.5px; letter-spacing: 0.04em; text-align: center; color: var(--paper-ink-soft); }
@media (max-width: 720px) {
  .fa-main { padding-top: 40px; }
  .fa-title { font-size: 20px; }
  .fa-card dl { grid-template-columns: minmax(0, 1fr); gap: 2px 0; }
  .fa-card dt { margin-top: 6px; }
  .fa-lead { font-size: 15.5px; }
}
@media print { .fa-toc, .fa-cta { display: none !important; } }

/* ⚠ 触屏块居文末（G18h 2026-09-06）：同优先级后源取胜——挪到 720 / print / 绣色块之前即被反杀 */
@media (pointer: coarse) { .fa-toc a { min-height: 44px; font-size: 15px; } .fa-faq-item summary { min-height: 44px; } }