@charset "UTF-8";
/* ==========================================================
   パワーアンプのすゝめ 2026 専用スタイル
   ========================================================== */

.pa {
  --accent: #9c0004;
  --teal: #0f6f73;
  --gold: #c9971c;
  --ink: #1a1a1a;
  --sub: #555;
  --line: #ddd;
  --panel: #f6f6f4;
  color: var(--ink);
  font-size: 1.5rem;
  line-height: 1.9;
  letter-spacing: .03em;
  text-align: left;
  max-width: 760px;
  margin: 0 auto;
  padding: 10px 0 40px;
}
.pa * { box-sizing: border-box; }
.pa img { max-width: 100%; height: auto; vertical-align: bottom; }
.pa p { margin: 0 0 1.1em; text-align: justify; }
.pa strong, .pa b { font-weight: bold; }
.pa .em { font-weight: bold; }
.pa figure { margin: 0 0 22px; text-align: center; }
.pa figure.wide img { width: 100%; }

/* ---------- タイトル・導入 ---------- */
.pa .pa-title { margin: 10px 0 26px; text-align: center; }
.pa .pa-title img { width: 643px; }
.pa .lead { text-align: center; margin: 0 0 34px; font-weight: bold; font-size: 1.6rem; line-height: 2.2; }
.pa .lead p { text-align: center; margin: 0; }

.pa .pa-toc { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 0 0 50px; }
.pa .pa-toc a {
  display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-radius: 8px;
  background: var(--panel); border: 1px solid var(--line); color: var(--ink); text-decoration: none;
  font-weight: bold; font-size: 1.4rem; line-height: 1.4;
}
.pa .pa-toc a span {
  flex: 0 0 28px; height: 28px; border-radius: 50%; background: var(--teal); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 1.3rem;
}
.pa .pa-toc a:hover { border-color: var(--teal); background: #eef7f7; }

/* ---------- 見出し ---------- */
.pa .bn { margin: 70px 0 26px; text-align: center; scroll-margin-top: 20px; }
.pa .bn img { width: 100%; border-radius: 4px; }
.pa [id] { scroll-margin-top: 20px; }
.pa .h3 {
  font-size: 1.8rem; font-weight: bold; line-height: 1.5;
  margin: 44px 0 16px; padding: 4px 0 4px 12px; border-left: 6px solid var(--teal);
}
.pa .h4 {
  font-size: 1.65rem; font-weight: bold; line-height: 1.5; margin: 32px 0 12px;
  padding-bottom: 4px; border-bottom: 2px dotted var(--teal); color: var(--teal);
}
.pa .item-title { font-weight: bold; font-size: 1.6rem; margin: 26px 0 10px; text-align: left; }
.pa .item-title::before { content: "■ "; color: var(--gold); }
.pa .catch { text-align: center; font-weight: bold; font-size: 1.7rem; line-height: 1.8; margin: 30px 0; }
.pa .catch p { text-align: center; margin: 0 0 .2em; }

/* ---------- リスト ---------- */
.pa ul.effects {
  list-style: none; margin: 0 auto 30px; padding: 18px 22px; max-width: 520px;
  background: #fff8e8; border: 2px solid var(--gold); border-radius: 10px;
}
.pa ul.effects li { position: relative; padding-left: 28px; font-size: 1.7rem; font-weight: bold; line-height: 1.9; }
.pa ul.effects li::before { content: "\f00c"; font-family: "Font Awesome 5 Free"; font-weight: 900; position: absolute; left: 0; color: var(--gold); }
.pa ul.dots, .pa ul.check { list-style: none; margin: 0 0 1.2em; padding: 0; }
.pa ul.dots li { position: relative; padding-left: 1.1em; line-height: 1.8; margin-bottom: .3em; }
.pa ul.dots li::before { content: "・"; position: absolute; left: 0; }
.pa ul.check { background: var(--panel); border-radius: 8px; padding: 14px 18px; }
.pa ul.check li { position: relative; padding-left: 26px; font-weight: bold; line-height: 1.8; }
.pa ul.check li::before { content: "\f00c"; font-family: "Font Awesome 5 Free"; font-weight: 900; position: absolute; left: 0; color: var(--teal); }
.pa .flow-arrow { width: 0; height: 0; margin: -8px auto 14px; border-left: 18px solid transparent; border-right: 18px solid transparent; border-top: 22px solid var(--gold); }

/* ---------- アンプカード ---------- */
.pa .amp { border: 1px solid var(--line); border-radius: 12px; padding: 20px 22px 18px; margin: 0 0 26px; background: #fff; box-shadow: 0 2px 6px rgba(0,0,0,.04); }
.pa .amp-head { display: flex; gap: 20px; align-items: center; margin-bottom: 14px; }
.pa .amp-head + .amp-head { padding-top: 14px; border-top: 1px dashed var(--line); }
.pa .amp-head figure { flex: 0 0 220px; margin: 0; }
.pa .amp-id { flex: 1 1 auto; min-width: 0; }
.pa .amp-maker { margin: 0; font-size: 1.35rem; color: var(--sub); text-align: left; }
.pa .amp-model { margin: 0 0 8px; font-size: 2.2rem; font-weight: bold; line-height: 1.3; }
.pa .amp-spec { display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; margin: 0; font-size: 1.35rem; line-height: 1.6; }
.pa .amp-spec dt { color: var(--sub); font-weight: bold; }
.pa .amp-spec dd { margin: 0; }
.pa .cls { display: inline-block; min-width: 2.4em; text-align: center; border-radius: 3px; color: #fff; font-weight: bold; padding: 0 6px; }
.pa .cls-d { background: #1f5fa8; }
.pa .cls-ab { background: var(--accent); }
.pa .cls-a { background: var(--gold); }
.pa .amp-desc p { margin-bottom: .7em; font-size: 1.45rem; }
.pa table.amp-char { width: 100%; border-collapse: collapse; font-size: 1.4rem; line-height: 1.6; margin-top: 6px; }
.pa table.amp-char th, .pa table.amp-char td { border: 1px solid var(--line); padding: 7px 10px; text-align: left; vertical-align: top; }
.pa table.amp-char th { width: 9.5em; background: #eef7f7; color: var(--teal); white-space: nowrap; }

/* ---------- 組み合わせ（長所・短所） ---------- */
.pa .pair { display: flex; gap: 16px; border: 1px solid var(--line); border-radius: 12px; padding: 16px; margin: 0 0 20px; }
.pa .pair-sp { flex: 0 0 160px; text-align: center; align-self: center; }
.pa .pair-sp figure { margin: 0 0 6px; }
.pa .pair-name { text-align: center !important; font-weight: bold; font-size: 1.45rem; line-height: 1.4; margin: 0; }
.pa .pair-rows { flex: 1 1 auto; min-width: 0; display: grid; gap: 10px; }
.pa .pair-row { display: grid; grid-template-columns: 44px 1fr 150px; grid-template-rows: auto auto; column-gap: 12px; align-items: center; border-radius: 8px; padding: 10px 12px; }
.pa .pair-row.good { background: #eef6ee; }
.pa .pair-row.bad { background: #fbefef; }
.pa .pair-k { grid-row: 1 / 3; writing-mode: vertical-rl; font-weight: bold; font-size: 1.5rem; letter-spacing: .3em; color: #fff; border-radius: 4px; padding: 8px 0; text-align: center; align-self: stretch; display: flex; align-items: center; justify-content: center; }
.pa .good .pair-k { background: #2e7d32; }
.pa .bad .pair-k { background: var(--accent); }
.pa .pair-row ul { list-style: none; margin: 0; padding: 0; font-size: 1.4rem; line-height: 1.65; }
.pa .pair-row ul li::before { content: "・"; }
.pa .pair-arrow { grid-column: 2; font-size: 1.2rem; font-weight: bold; color: var(--sub); margin-top: 4px; }
.pa .pair-arrow::after { content: " →"; }
.pa .pair-amp { grid-column: 3; grid-row: 1 / 3; text-align: center; }
.pa .pair-amp figure { margin: 0 0 4px; }
.pa .pair-amp img { max-height: 70px; width: auto; }
.pa .pair-amp p { margin: 0; text-align: center; font-size: 1.25rem; font-weight: bold; line-height: 1.4; }

/* ---------- 比較表 ---------- */
.pa .tbl-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 0 0 24px; }
.pa table.cmp { width: 100%; min-width: 520px; border-collapse: collapse; font-size: 1.4rem; line-height: 1.7; }
.pa table.cmp th, .pa table.cmp td { border: 1px solid #ccc; padding: 8px 10px; vertical-align: top; text-align: left; }
.pa table.cmp thead th { background: #333; color: #fff; text-align: center; }
.pa table.cmp tbody th { background: var(--panel); width: 3.5em; text-align: center; vertical-align: middle; }

/* ---------- 費用 ---------- */
.pa table.price-tbl { width: 100%; max-width: 520px; margin: 0 auto 26px; border-collapse: collapse; font-size: 1.5rem; }
.pa table.price-tbl th, .pa table.price-tbl td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; }
.pa table.price-tbl td { text-align: right; font-weight: bold; color: #d00; font-size: 1.8rem; white-space: nowrap; }
.pa .fees { border: 1px solid var(--line); border-radius: 10px; overflow: hidden; margin: 0 0 24px; }
.pa .fee { display: grid; grid-template-columns: 15em 1fr; border-top: 1px solid var(--line); }
.pa .fee:first-child { border-top: 0; }
.pa .fee-k { background: var(--panel); padding: 10px 14px; font-weight: bold; line-height: 1.6; }
.pa .fee-k b { display: block; color: #d00; font-size: 1.6rem; }
.pa .fee-v { padding: 10px 14px; font-size: 1.4rem; line-height: 1.7; }
.pa .example { border: 2px solid var(--teal); border-radius: 10px; padding: 14px 18px; margin: 0 0 18px; }
.pa .ex-title { font-weight: bold; margin: 0 0 8px; text-align: left; }
.pa .ex-title span { display: inline-block; background: var(--teal); color: #fff; border-radius: 3px; padding: 0 8px; margin-right: 8px; }
.pa .ex-sub { font-size: 1.3rem; color: var(--sub); margin: 0 0 4px; text-align: left; }
.pa ul.ex-items { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px 8px; }
.pa ul.ex-items li { background: #eef7f7; border: 1px solid #cfe6e6; border-radius: 999px; padding: 2px 12px; font-size: 1.35rem; font-weight: bold; }
.pa .example table { width: 100%; max-width: 420px; border-collapse: collapse; font-size: 1.45rem; }
.pa .example th, .pa .example td { padding: 5px 4px; border-bottom: 1px dotted #ccc; text-align: left; font-weight: normal; }
.pa .example td { text-align: right; }
.pa .example tr.total th, .pa .example tr.total td { border-bottom: 0; border-top: 2px solid var(--ink); font-weight: bold; padding-top: 8px; }
.pa .example tr.total td { color: #d00; font-size: 1.8rem; }
.pa .example tr.total small { display: block; font-size: 1.3rem; color: var(--ink); }
.pa .price-box { display: flex; flex-wrap: wrap; justify-content: center; align-items: baseline; gap: 4px 14px; background: #fff6f6; border-radius: 8px; padding: 12px; margin: 0 0 18px; }
.pa .price-box .lbl { font-weight: bold; }
.pa .price-box .val { font-size: 2.4rem; font-weight: bold; color: #d00; }
.pa .price-box .val small { font-size: 1.3rem; color: var(--ink); margin-left: 2px; }
.pa .note-box { background: var(--panel); border-left: 4px solid var(--teal); border-radius: 0 8px 8px 0; padding: 14px 18px 4px; margin: 10px 0 26px; font-size: 1.4rem; }
.pa .note-box p { margin-bottom: .7em; }
.pa dl.mini-price { display: grid; grid-template-columns: auto 1fr; gap: 2px 16px; margin: 0 0 1em; font-weight: bold; }
.pa dl.mini-price dd { margin: 0; color: #d00; }

/* ---------- 画像＋文 ---------- */
.pa .media { display: flex; gap: 20px; align-items: flex-start; margin: 0 0 20px; }
.pa .media figure { flex: 0 0 280px; margin: 0; }
.pa .media .txt { flex: 1 1 auto; min-width: 0; }

/* ---------- お問い合わせ ---------- */
.pa .contact { text-align: center; margin: 30px 0 50px; }
.pa .contact a.btn {
  display: inline-block; min-width: 230px; margin: 6px; padding: 13px 20px; border-radius: 6px;
  background: var(--accent); color: #fff; font-weight: bold; font-size: 1.6rem; text-decoration: none;
}
.pa .contact a.btn.tel { background: #555; }
.pa .contact a.btn:hover { opacity: .85; }
.pa .to-top { text-align: center !important; }

/* ---------- スマホ ---------- */
@media screen and (max-width: 667px) {
  .pa { font-size: 1.45rem; padding-left: 4px; padding-right: 4px; }
  .pa .lead { font-size: 1.4rem; line-height: 2; }
  .pa .pa-toc { grid-template-columns: 1fr; }
  .pa .bn { margin-top: 50px; }
  .pa .catch { font-size: 1.5rem; }
  .pa ul.effects li { font-size: 1.5rem; }
  .pa .amp { padding: 14px 12px; }
  .pa .amp-head { flex-direction: column; align-items: stretch; gap: 8px; }
  .pa .amp-head figure { flex-basis: auto; max-width: 240px; margin: 0 auto; }
  .pa .amp-model { font-size: 1.9rem; }
  .pa table.amp-char th { width: 7.5em; white-space: normal; }
  .pa .pair { flex-direction: column; padding: 12px; }
  .pa .pair-sp { flex-basis: auto; }
  .pa .pair-sp figure img { max-width: 160px; }
  .pa .pair-row { grid-template-columns: 30px 1fr; grid-template-rows: auto auto auto; column-gap: 10px; padding: 8px; }
  .pa .pair-k { grid-row: 1 / 4; font-size: 1.3rem; }
  .pa .pair-arrow { margin-top: 6px; }
  .pa .pair-amp {
    grid-column: 2; grid-row: 3; display: flex; align-items: center; gap: 10px; text-align: left;
    background: #fff; border-radius: 6px; padding: 6px 10px; margin-top: 4px;
  }
  .pa .pair-amp figure { margin: 0; flex: 0 0 auto; }
  .pa .pair-amp img { max-height: 44px; }
  .pa .pair-amp p { font-size: 1.3rem; text-align: left; }
  .pa .fee { grid-template-columns: 1fr; }
  .pa .media { flex-direction: column; }
  .pa .media figure { flex-basis: auto; }
  .pa .contact a.btn { display: block; margin: 8px auto; max-width: 320px; }
}