:root {
  --pps-brand: #9dcbde;
  --pps-brand-mist: #eef6f9;
  --pps-brand-deep: #3d7a93;
  --pps-ink: #21323b;
  --pps-ink-soft: #5b6d76;
  --pps-paper: #fcfdfe;
  --pps-line: #d9e6ec;
  --pps-teal: #1d9e75;
  --pps-coral: #d85a30;
  --pps-indigo: #6f6bd8;
  --pps-gray: #6b7780;
  --pps-serif: "Shippori Mincho", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --pps-sans: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "Noto Sans JP", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--pps-paper);
  color: var(--pps-ink);
  font-family: var(--pps-sans);
  font-size: 16px;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
}

.pps-sr {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}

.pps-site-head {
  display: flex; align-items: baseline; gap: 14px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--pps-line);
}
.pps-site-name {
  font-family: var(--pps-serif);
  font-weight: 700; font-size: 19px;
  color: var(--pps-ink); text-decoration: none;
}
.pps-site-sub { font-size: 12px; color: var(--pps-ink-soft); }

.pps-page {
  max-width: 880px;
  margin: 0 auto;
  padding: 56px 24px 80px;
}

.pps-eyebrow {
  font-size: 13px; letter-spacing: 0.12em;
  color: var(--pps-brand-deep);
  border-left: 3px solid var(--pps-brand);
  padding-left: 10px;
  margin: 0 0 18px;
}

.pps-title {
  font-family: var(--pps-serif);
  font-weight: 700;
  font-size: clamp(26px, 4.5vw, 38px);
  line-height: 1.5;
  margin: 0 0 10px;
}

.pps-meta { font-size: 13px; color: var(--pps-ink-soft); margin: 0 0 28px; }

.pps-lead {
  font-size: 17px;
  max-width: 44em;
  margin: 0 0 56px;
}

.pps-h2 {
  font-family: var(--pps-serif);
  font-weight: 600;
  font-size: 23px;
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--pps-line);
}
.pps-h3 { font-size: 16px; font-weight: 600; margin: 0 0 14px; }

.pps-body { margin: 0 0 20px; max-width: 44em; }
.pps-note { font-size: 13px; color: var(--pps-ink-soft); margin: 12px 0 0; }

section, .pps-foot { margin-bottom: 64px; }

/* ---- レンジバー（シグネチャー要素） ---- */
.pps-range-track {
  position: relative;
  height: 4px;
  background: var(--pps-line);
  border-radius: 2px;
  margin: 72px 40px 84px;
}
.pps-range-bar {
  position: absolute; top: 0; left: 0; height: 100%;
  width: 0;
  background: var(--pps-brand);
  border-radius: 2px;
  transition: width 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}
.pps-range-dot {
  position: absolute; top: 50%;
  width: 14px; height: 14px;
  transform: translate(-50%, -50%);
  background: var(--pps-brand-deep);
  border: 3px solid var(--pps-paper);
  border-radius: 50%;
  box-shadow: 0 0 0 1px var(--pps-line);
}
.pps-range-label {
  position: absolute; top: 22px; left: 50%;
  transform: translateX(-50%);
  font-size: 12px; line-height: 1.5;
  color: var(--pps-ink-soft);
  text-align: center; white-space: nowrap;
}
.pps-range-dot:nth-child(odd) .pps-range-label { top: auto; bottom: 22px; }
.pps-range-label strong { font-size: 16px; color: var(--pps-ink); }

/* ---- 操作まわり ---- */
.pps-controls {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin: 0 0 16px;
}
.pps-pill {
  font-family: var(--pps-sans);
  font-size: 13px;
  padding: 7px 14px;
  border: 1px solid var(--pps-line);
  border-radius: 999px;
  background: #fff;
  color: var(--pps-ink-soft);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.pps-pill.is-on {
  background: var(--pps-brand-mist);
  border-color: var(--pps-brand);
  color: var(--pps-ink);
}
.pps-pill-scale { margin-left: auto; }
.pps-pill:focus-visible,
input[type="range"]:focus-visible,
a:focus-visible {
  outline: 2px solid var(--pps-brand-deep);
  outline-offset: 2px;
}

.pps-legend {
  display: flex; flex-wrap: wrap; gap: 8px 18px;
  font-size: 12px; color: var(--pps-ink-soft);
  margin: 0 0 10px;
}
.pps-legend span { display: inline-flex; align-items: center; gap: 6px; }

.pps-chart-wrap {
  position: relative;
  width: 100%;
  height: 420px;
  background: #fff;
  border: 1px solid var(--pps-line);
  border-radius: 10px;
  padding: 16px;
}

/* ---- シナリオスライダー ---- */
.pps-scenario {
  margin-top: 28px;
  background: var(--pps-brand-mist);
  border-radius: 10px;
  padding: 22px 24px;
}
.pps-slider-row {
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 12px;
}
.pps-slider-row label {
  font-size: 13px; color: var(--pps-ink-soft);
  min-width: 150px;
}
.pps-slider-row input[type="range"] {
  flex: 1;
  accent-color: var(--pps-brand-deep);
}
.pps-slider-row output {
  font-size: 14px; font-weight: 600;
  min-width: 64px; text-align: right;
  font-variant-numeric: tabular-nums;
}
.pps-scenario-result { margin: 6px 0 0; font-size: 14px; }
.pps-scenario-result strong { font-size: 18px; }

/* ---- データ表 ---- */
.pps-table-wrap { overflow-x: auto; }
.pps-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}
.pps-table th, .pps-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--pps-line);
  text-align: left;
  white-space: nowrap;
}
.pps-table thead th {
  font-size: 12px; font-weight: 600;
  color: var(--pps-ink-soft);
  background: var(--pps-brand-mist);
}
.pps-table tbody tr:hover { background: #f4f9fb; }

/* ---- リンク・出典 ---- */
.pps-cta a, .pps-sources a {
  color: var(--pps-brand-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.pps-sources {
  margin: 0; padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 6px 24px;
  font-size: 14px;
}

@media (max-width: 560px) {
  .pps-range-track { margin: 64px 20px 76px; }
  .pps-slider-row { flex-wrap: wrap; }
  .pps-slider-row label { min-width: 100%; }
  .pps-chart-wrap { height: 340px; padding: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  .pps-range-bar { transition: none; }
}