/* 實機說明書（網頁＋列印成 PDF）：大字、少字、一節三件事 */
body { background: var(--paper); }
.hp { max-width: 880px; margin: 0 auto; padding: 24px 16px 64px; }
.hp-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; border-bottom: 1px solid var(--hair); padding-bottom: 12px; }
.hp-top .logo { height: 44px; }
.hp-top a { color: var(--ink); font-weight: 700; }
.hp h1 { font-family: var(--serif); font-size: clamp(28px, 6vw, 38px); font-weight: 600; margin: 20px 0 6px; line-height: 1.25; }
.hp .lead { font-size: 18px; color: var(--ink-2); margin: 0 0 16px; line-height: 1.6; }
.hp-toc { background: var(--white); border: 1px solid var(--hair); border-radius: var(--r); padding: 12px 16px; margin: 16px 0 24px; }
.hp-toc ol { margin: 0; padding-left: 1.4em; columns: 2 220px; column-gap: 24px; }
.hp-toc li { font-size: 17px; line-height: 1.9; break-inside: avoid; }
.hp-toc a { color: var(--ink); }
.sec { background: var(--white); border: 1px solid var(--hair); border-radius: var(--r); padding: 18px; margin: 0 0 20px; break-inside: avoid; page-break-inside: avoid; }
.sec h2 { font-family: var(--serif); font-size: 25px; font-weight: 600; margin: 0 0 12px; line-height: 1.3; display: flex; gap: 10px; align-items: baseline; }
.sec h2 .n { display: inline-flex; min-width: 36px; height: 36px; align-items: center; justify-content: center; border: 2px solid var(--red); border-radius: 4px; color: var(--ink); font-size: 20px; }
.sec-body { display: grid; gap: 16px; grid-template-columns: minmax(0, 1fr); align-items: start; }
@media (min-width: 720px) { .sec-body.two { grid-template-columns: minmax(0, 300px) minmax(0, 1fr); } }
.shot { margin: 0; }
.shot img { display: block; width: 100%; height: auto; border: 1px solid var(--hair); border-radius: var(--r); background: var(--paper-2); }
.shot.phone img { max-width: 300px; margin: 0 auto; }
.shot figcaption { font-size: 14px; color: var(--ink-2); text-align: center; margin-top: 6px; }
.steps { margin: 0; padding: 0; list-style: none; counter-reset: s; display: grid; gap: 12px; }
.steps li { counter-increment: s; position: relative; padding-left: 44px; font-size: 19px; line-height: 1.6; }
.steps li::before { content: counter(s); position: absolute; left: 0; top: 2px; width: 32px; height: 32px; border-radius: 50%; background: var(--ink); color: var(--paper);
  font-weight: 700; display: flex; align-items: center; justify-content: center; font-size: 17px; }
.steps b { color: var(--ink); }
.tip { margin: 12px 0 0; padding: 10px 14px; border-left: 4px solid var(--green); background: var(--green-wash); font-size: 17px; line-height: 1.6; border-radius: 0 var(--r) var(--r) 0; }
.warn { margin: 12px 0 0; padding: 10px 14px; border-left: 4px solid var(--red); background: var(--red-wash); font-size: 17px; line-height: 1.6; border-radius: 0 var(--r) var(--r) 0; }
.faq dt { font-weight: 700; font-size: 19px; margin-top: 14px; }
.faq dd { margin: 4px 0 0; font-size: 18px; line-height: 1.6; color: var(--ink-2); }
.hp-foot { display: flex; justify-content: center; margin-top: 28px; }
.print-btn { margin-top: 8px; }
@media print {
  body { background: #fff; }
  .hp { max-width: none; padding: 0; }
  .print-btn, .hp-top a.no-print { display: none !important; }
  .sec { border-color: #ccc; }
  @page { size: A4; margin: 14mm 12mm; }
}