/* ========= 基本 ========= */
:root{
  --wa: #24d366;
  --ink:#111;
  --text:#333;
  --muted:#666;
  --bg:#fafafa;
  --card:#fff;
  --border:#eaeaea;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}

/* 主容器 */
.api{max-width:1100px;margin:0 auto;padding:40px 18px}

/* ========= Hero ========= */
.api-hero{padding:42px 0}
.api-hero__wrap{
  display:flex;align-items:center;gap:36px;flex-wrap:wrap;justify-content:space-between
}
.api-hero__text{flex:1;min-width:300px}
.api-hero__art{flex:1;min-width:260px;text-align:center}
.api-hero__art img{max-width:320px;border-radius:16px;transform:rotate(-8deg)}

.eyebrow{
  font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--wa);font-weight:700;margin:0 0 10px
}
.title{font-size:36px;font-weight:800;color:var(--ink);margin:0 0 16px}
.title .mark{color:var(--wa)}
.lead{font-size:18px;color:#444;margin:0 0 18px}
.cta-row{display:flex;gap:12px}

.btn{display:inline-block;padding:12px 18px;border-radius:8px;text-decoration:none;font-weight:700;transition:.2s ease}
.btn-primary{background:var(--wa);color:#fff}
.btn-primary:hover{filter:brightness(.95)}
.btn-ghost{border:2px solid var(--wa);color:var(--wa);background:transparent}
.btn-ghost:hover{background:#e9fdf3}

/* ========= 區塊標頭 ========= */
.api-section{margin-top:64px}
.sec-head{text-align:center;margin-bottom:22px}
.sec-head h2{font-size:26px;margin:0 0 8px;color:var(--ink)}
.sec-head .sub{color:var(--muted);margin:0}

/* ========= 端點卡片 ========= */
.cards{
  display:grid;gap:16px;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
}
.ep-card{
  background:var(--card);border:1px solid var(--border);
  border-radius:12px;padding:16px;transition:box-shadow .25s ease
}
.ep-card:hover{box-shadow:0 8px 20px rgba(0,0,0,.06)}
.ep-card .meta{
  display:inline-block;background:var(--wa);color:#fff;
  font-size:12px;padding:3px 8px;border-radius:999px;margin-bottom:8px
}
.ep-card .name{margin:0 0 8px;font-size:18px;color:var(--ink)}
.ep-card .desc{margin:0 0 10px;color:#555;font-size:14px}
.code{
  margin:0;border-radius:10px;background:#0f172a;color:#d1e7ff;
  padding:12px;font-family:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;
  font-size:13px;overflow:auto;border:1px solid #0b1225
}

/* ========= 快速測試 ========= */
.try-form{
  max-width:820px;margin:0 auto;background:var(--card);
  border:1px solid var(--border);border-radius:12px;padding:18px
}
.try-form .row{display:flex;gap:12px;margin-bottom:12px;flex-wrap:wrap}
.try-form label{width:140px;min-width:140px;color:#444;padding-top:8px;font-weight:600}
.try-form input,.try-form select,.try-form textarea{
  flex:1;min-width:200px;padding:10px 12px;border:1px solid var(--border);
  border-radius:8px;background:#fff;color:var(--ink);font:inherit
}
.try-form textarea{resize:vertical}
.try-form .actions{display:flex;gap:10px;justify-content:flex-end;margin-top:6px}

/* ========= FAQ ========= */
.faq{max-width:900px;margin:0 auto;padding:0 8px;list-style:disc}
.faq li{margin:6px 0 8px 18px}

/* ========= 響應式 ========= */
@media (max-width:720px){
  .title{font-size:28px}
  .api-hero__art img{max-width:260px}
}