/* スマホ・タブレット：端末の状態から探す型番確認ガイド。 */
.phone-finder { max-width: 1060px; margin: 0 auto; color: #1f2937; font-size: 16px; line-height: 1.95; }
.phone-finder a { color: #145da6; text-underline-offset: 4px; }
.phone-finder :is(a,summary):focus-visible { outline: 3px solid #d61439; outline-offset: 5px; }
.phone-finder :is(section,details) { scroll-margin-top: 90px; }
.pf-hero { display: grid; grid-template-columns: 1.1fr 1fr; gap: 24px; align-items: center; padding: 44px 40px 70px; background: #edf6fc; border-top: 5px solid #1867c0; }
.pf-kicker { font-weight: 700; color: #145da6; margin-bottom: 12px; font-size: 14px; }
.pf-hero h1 { font-size: clamp(28px,3.4vw,40px); line-height: 1.5; font-weight: 900; letter-spacing: -.025em; }
.pf-hero .pf-lead { font-size: 19px; font-weight: 700; margin: 22px 0 14px; }
.pf-hero img { width: 100%; height: auto; border-radius: 12px; }
.pf-start { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; max-width: 840px; margin: -32px auto 0; padding: 0 24px; position: relative; }
.pf-start a { background: #fff; border: 2px solid #1867c0; border-radius: 10px; box-shadow: 0 6px 0 #dcebf7; padding: 22px 24px; text-decoration: none; display: grid; gap: 10px; }
.pf-start a:first-child { background: #fffde8; }
.pf-start a:hover { border-color: #103f76; transform: translateY(-2px); }
.pf-route-tag { font-size: 14px; font-weight: 700; }
.pf-start strong { font-size: 25px; line-height: 1.55; color: #173b63; }
.pf-start a > span:last-child { font-size: 13px; display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.pf-start b { font-size: 24px; }
.pf-content { max-width: 800px; margin: auto; padding: 24px 28px 0; }
.pf-section { margin: 56px 0; }
.phone-finder h2 { font-size: 28px; line-height: 1.55; font-weight: 900; margin-bottom: 18px; }
.phone-finder h3 { font-size: 18px; line-height: 1.65; margin-bottom: 10px; }
.pf-makers { margin: 24px 0; border-top: 3px solid #1867c0; }
.phone-finder details { border-bottom: 1px solid #cbd7e3; }
.phone-finder summary { cursor: pointer; padding: 21px 38px 21px 16px; font-size: 18px; font-weight: 700; position: relative; list-style: none; }
.phone-finder summary::-webkit-details-marker { display: none; }
.phone-finder summary::after { content: '+'; font-size: 25px; color: #1867c0; position: absolute; right: 12px; top: 15px; }
.phone-finder details[open] > summary::after { content: '−'; }
.phone-finder summary:hover,.phone-finder details[open] { background: #f4f9fd; }
.pf-answer { padding: 0 20px 25px; }
.pf-answer p + p { margin-top: 14px; }
.pf-steps { padding-left: 25px; margin: 0 0 18px; }
.pf-steps li { padding: 5px 0 5px 5px; font-weight: 700; }
.pf-sources { display: grid; gap: 10px; margin-top: 20px; }
.pf-sources a { font-size: 14px; overflow-wrap: anywhere; }
.pf-sources span { display: inline-block; color: #566476; margin-left: 10px; font-size: 12px; }
.pf-figure { margin: 28px 0; background: #fff; }
.pf-figure img { display: block; width: 100%; height: auto; border-radius: 8px; }
.pf-figure figcaption { color: #536272; font-size: 13px; padding: 12px 4px 0; line-height: 1.8; }
.pf-inline { font-weight: 700; }
.pf-note { background: #f5f7f9; border-left: 3px solid #1867c0; padding: 18px 20px; font-size: 15px; }
.pf-offline-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.pf-offline-grid > div { border-top: 3px solid #ffe400; padding-top: 16px; }
.pf-answer ul { padding-left: 22px; }
.pf-answer ul li { margin-bottom: 12px; }
.pf-identifiers { margin: 24px 0; }
.pf-identifiers > div { display: grid; grid-template-columns: 210px 1fr; border-bottom: 1px solid #d6e1ea; padding: 17px 0; gap: 20px; }
.pf-identifiers dt { font-weight: 700; color: #145da6; }
.pf-identifiers dd { margin: 0; }
.pf-compare { margin: 24px 0; padding-left: 24px; }
.pf-compare li { padding: 7px 0; }
.pf-search-box { margin-top: 28px; background: #edf6fc; border-radius: 10px; padding: 30px; }
.phone-finder .pf-primary { display: inline-flex; justify-content: space-between; gap: 24px; padding: 16px 24px; border-radius: 6px; background: #ffe400; color: #332f00; font-weight: 900; text-decoration: none; margin: 12px 0 20px; }
.pf-primary:hover { background: #fff063; }
.pf-related { display: flex; flex-wrap: wrap; gap: 10px 24px; margin-bottom: 18px; }
.pf-search-box p { font-size: 14px; }
.pf-faq summary { font-size: 16px; }
.pf-next { border-top: 3px solid #1867c0; display: grid; padding-top: 20px; gap: 12px; font-size: 14px; }
.pf-review { font-size: 13px; color: #536272; margin: 28px 0 48px; }
@media(max-width:700px) {
  .pf-hero { grid-template-columns: 1fr; padding: 30px 24px 54px; gap: 20px; }
  .pf-hero img { max-width: 300px; margin: auto; }
  .pf-hero .pf-lead { font-size: 17px; }
  .pf-start { gap: 12px; padding: 0 16px; }
  .pf-start a { padding: 15px 13px; }
  .pf-start strong { font-size: 20px; }
  .pf-route-tag { font-size: 12px; }
  .pf-start a > span:last-child { font-size: 12px; }
  .pf-content { padding: 24px 20px 0; }
  .phone-finder h2 { font-size: 24px; }
  .pf-section { margin: 42px 0; }
  .phone-finder summary { font-size: 17px; padding-left: 10px; }
  .pf-answer { padding: 0 12px 24px; }
  .pf-offline-grid { grid-template-columns: 1fr; gap: 22px; }
  .pf-identifiers > div { grid-template-columns: 1fr; gap: 5px; }
  .pf-search-box { padding: 22px 18px; }
  .phone-finder .pf-primary { padding: 16px; gap: 12px; font-size: 15px; }
}
@media(prefers-reduced-motion:reduce) { html { scroll-behavior: auto; } }