/* ── 英/日文「介紹頁」共用樣式 ──
   給 /en/、/ja/ 底下的功能介紹頁使用（giant-trees、green-assets…）。
   沿用 design-tokens.css 的色票精神，但介紹頁不需要地圖首頁那套複雜版面，
   獨立一份簡單的 hero + 條列 + CTA 版型，供所有介紹頁共用引入。
*/
:root {
  --ip-green-900: #14491f;
  --ip-green-700: #1a5c2a;
  --ip-green-100: #e8f5e9;
  --ip-ink: #1a2e20;
  --ip-body: #3f5948;
  --ip-faint: #6b8874;
  --ip-border: #d7e6d8;
  --ip-amber: #f4c86b;
}
* , *::before, *::after { box-sizing: border-box; }
body.ip-body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Hiragino Kaku Gothic ProN",
    "Noto Sans JP", "Noto Sans TC", system-ui, sans-serif;
  color: var(--ip-ink);
  background: #fff;
}
.ip-header {
  background: var(--ip-green-700);
  color: #fff;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  z-index: 10;
}
.ip-header a.ip-brand {
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.98rem;
  display: flex;
  align-items: center;
  gap: 6px;
}
.ip-brand img { width: 22px; height: 22px; border-radius: 5px; }
.ip-langs { display: flex; gap: 6px; }
.ip-langs a {
  color: rgba(255,255,255,0.88);
  border: 1px solid rgba(255,255,255,0.4);
  border-radius: 14px;
  padding: 3px 11px;
  font-size: 0.78rem;
  text-decoration: none;
  white-space: nowrap;
}
.ip-langs a.is-current { background: rgba(255,255,255,0.18); font-weight: 700; }

.ip-hero {
  background: linear-gradient(160deg, var(--ip-green-900), var(--ip-green-700));
  color: #fff;
  padding: clamp(36px, 7vw, 64px) 20px;
  text-align: center;
}
.ip-hero-icon { font-size: 2.6rem; margin-bottom: 10px; }
.ip-kicker {
  color: var(--ip-amber);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.ip-hero h1 {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  line-height: 1.3;
  margin: 0 0 12px;
}
.ip-hero p {
  max-width: 640px;
  margin: 0 auto;
  font-size: clamp(0.95rem, 1.6vw, 1.08rem);
  line-height: 1.7;
  color: rgba(255,255,255,0.88);
}

.ip-main { max-width: 760px; margin: 0 auto; padding: clamp(28px, 5vw, 48px) 20px; }
.ip-section-title {
  color: var(--ip-green-700);
  font-size: 1.1rem;
  font-weight: 800;
  margin: 0 0 14px;
}
.ip-list { list-style: none; margin: 0 0 32px; padding: 0; display: grid; gap: 12px; }
.ip-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: var(--ip-green-100);
  border: 1px solid var(--ip-border);
  border-radius: 10px;
  padding: 12px 14px;
  line-height: 1.6;
  font-size: 0.94rem;
  color: var(--ip-body);
}
.ip-list li .ip-li-icon { flex: none; font-size: 1.15rem; line-height: 1.4; }

.ip-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  background: #fafdfb;
  border: 1px solid var(--ip-border);
  border-radius: 12px;
  padding: 16px 18px;
  margin-bottom: 32px;
}
.ip-stat { flex: 1 1 120px; }
.ip-stat strong { display: block; color: var(--ip-green-700); font-size: 1.35rem; font-weight: 800; }
.ip-stat span { color: var(--ip-faint); font-size: 0.8rem; }
.ip-stats-note { flex-basis: 100%; color: var(--ip-faint); font-size: 0.74rem; margin-top: 4px; }

.ip-cta-wrap { text-align: center; margin-bottom: 8px; }
.ip-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--ip-green-700);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 28px;
  border-radius: 999px;
}
.ip-cta:hover, .ip-cta:focus { background: var(--ip-green-900); }
.ip-cta-hint { text-align: center; color: var(--ip-faint); font-size: 0.8rem; margin-top: 10px; }

.ip-examples { margin-top: 28px; }
.ip-examples-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.ip-examples-grid a {
  border: 1px solid var(--ip-border);
  border-radius: 999px;
  padding: 7px 16px;
  color: var(--ip-green-700);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  background: #fff;
}
.ip-examples-grid a:hover { background: var(--ip-green-100); }

.ip-footer {
  background: #203426;
  color: #d8e3d9;
  text-align: center;
  padding: 26px 20px 32px;
  font-size: 0.82rem;
  line-height: 1.8;
}
.ip-footer a { color: var(--ip-amber); text-decoration: none; }
.ip-footer a:hover { text-decoration: underline; }