* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: #eefaf2;
  color: #173327;
}
.shell { max-width: 640px; margin: 0 auto; padding: 28px 16px 48px; }

/* 顶部 */
.top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.top h1 { margin: 0; font-size: 22px; }
.top .ver { font-size: 11px; opacity: .55; }

/* 进度卡 */
.progress-card {
  background: rgba(255,255,255,.8);
  border: 1px solid rgba(40,195,138,.25);
  border-radius: 18px;
  padding: 18px;
  margin-bottom: 16px;
}
.progress-row { display: grid; grid-template-columns: repeat(3, 1fr); text-align: center; gap: 8px; }
.progress-row strong { display: block; font-size: 22px; color: #15803d; }
.progress-row span { font-size: 11px; color: rgba(23,51,39,.6); }
.checkin-btn {
  margin-top: 14px; width: 100%; padding: 12px; border: none; border-radius: 999px;
  font-size: 15px; font-weight: 600; cursor: pointer;
  background: linear-gradient(135deg, #28c38a, #34d399); color: #fff;
}
.checkin-btn.done { background: rgba(40,195,138,.15); color: #15803d; cursor: default; }

/* 列表 */
.poem-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
@media (min-width: 640px) { .poem-list { grid-template-columns: repeat(3, 1fr); } }
.poem-list li { min-width: 0; }
.poem-item { height: 100%; }
.poem-item {
  display: flex; align-items: center; gap: 12px; padding: 13px 16px;
  background: rgba(255,255,255,.8); border: 1px solid rgba(40,195,138,.2);
  border-radius: 14px; text-decoration: none; color: inherit; transition: .15s;
}
.poem-item:hover { border-color: #28c38a; }
.poem-item.learned { background: rgba(40,195,138,.1); }
.poem-item.locked { opacity: .55; }
.num { font-size: 12px; font-weight: 700; color: #15803d; width: 24px; }
.info { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.title { font-weight: 600; }
.meta { font-size: 12px; color: rgba(23,51,39,.55); }
.mark { font-size: 11px; color: #15803d; border: 1px solid #28c38a; border-radius: 999px; padding: 2px 8px; }
.footnote { text-align: center; font-size: 12px; color: rgba(23,51,39,.45); margin-top: 20px; }

/* 详情 */
.back { display: inline-block; margin-bottom: 14px; color: #15803d; text-decoration: none; font-size: 14px; }
.poem-card {
  background: rgba(255,255,255,.85); border: 1px solid rgba(40,195,138,.25);
  border-radius: 20px; padding: 28px 20px; text-align: center;
}
.pt { margin: 0; font-size: 24px; }
.pa { margin: 6px 0 20px; font-size: 13px; color: rgba(23,51,39,.55); }
.verses { display: grid; gap: 14px; margin-bottom: 20px; }
.line { margin: 0; font-size: 20px; font-weight: 600; letter-spacing: 1px; }
.ch { display: inline-flex; flex-direction: column; align-items: center; line-height: 1.2; }
.ch i { font-style: normal; font-size: 11px; font-weight: 400; color: #0d9488; letter-spacing: 0; }
.ch.punct { font-weight: 400; }
.learn-btn {
  padding: 11px 28px; border-radius: 999px; border: 2px solid #28c38a;
  background: #fff; color: #15803d; font-size: 15px; font-weight: 600; cursor: pointer;
}
.learn-btn.done { background: #28c38a; color: #fff; }
.note-card {
  margin-top: 16px; background: rgba(255,255,255,.7);
  border: 1px solid rgba(40,195,138,.18); border-radius: 18px; padding: 18px;
}
.note-card h3 { margin: 0 0 8px; font-size: 15px; }
.note-card h3 + p { margin: 0 0 16px; font-size: 14px; line-height: 1.8; color: rgba(23,51,39,.8); }
.note-card p:last-child { margin-bottom: 0; }
.pager { display: flex; justify-content: space-between; margin-top: 18px; font-size: 14px; }
.pager a { color: #15803d; text-decoration: none; }
.lock-panel { text-align: center; background: rgba(255,255,255,.8); border-radius: 20px; padding: 40px 20px; }
.lock-panel .big { font-size: 40px; margin: 0; }
.lock-panel .solid { margin-top: 12px; padding: 10px 24px; border-radius: 999px; border: none; background: rgba(23,51,39,.2); color: rgba(23,51,39,.5); cursor: not-allowed; }

/* v0.2.1 朗读 */
.btn-row { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; }
.speak-btn {
  padding: 11px 22px; border-radius: 999px; border: 2px solid #0d9488;
  background: #fff; color: #0d9488; font-size: 15px; font-weight: 600; cursor: pointer;
}
.speak-btn.playing { background: #0d9488; color: #fff; }
.line.readable { cursor: pointer; }
.line.readable:active { opacity: .6; }

/* v0.3.0 解锁页 + Toast */
.unlock-panel { text-align: center; background: rgba(255,255,255,.85); border: 1px solid rgba(40,195,138,.25); border-radius: 20px; padding: 32px 22px; }
.unlock-panel .big { font-size: 40px; margin: 0; }
.unlock-panel h2 { margin: 8px 0 4px; }
.unlock-panel .hint { font-size: 13px; color: rgba(23,51,39,.65); line-height: 1.7; margin: 8px 0; text-align: left; }
.unlock-panel .hint.ok { text-align: center; color: #15803d; }
.unlock-panel .price-line { margin: 14px 0 6px; }
.unlock-panel .price-now { font-size: 22px; font-weight: 700; color: #e0453a; }
.unlock-panel .price-badge { margin-left: 8px; font-size: 11px; color: #15803d; border: 1px solid #28c38a; border-radius: 999px; padding: 2px 8px; }
.pay-qr { width: 180px; height: 180px; border-radius: 10px; border: 1px solid #eee; margin: 8px 0; }
.form-row { display: grid; gap: 8px; margin: 12px 0; }
.form-row input { padding: 11px 14px; border: 1px solid rgba(40,195,138,.4); border-radius: 10px; font-size: 14px; outline: none; }
.form-row input:focus { border-color: #28c38a; }
.form-row button { padding: 11px; border: none; border-radius: 10px; background: linear-gradient(135deg, #28c38a, #34d399); color: #fff; font-size: 14px; font-weight: 600; cursor: pointer; }
.form-row button:disabled { opacity: .6; }
.solid-btn { display: inline-block; margin-top: 14px; padding: 11px 26px; border-radius: 999px; background: linear-gradient(135deg, #28c38a, #34d399); color: #fff; text-decoration: none; font-size: 15px; font-weight: 600; }
.toast { position: fixed; left: 50%; bottom: 40px; transform: translateX(-50%) translateY(20px); background: rgba(23,51,39,.92); color: #fff; font-size: 14px; padding: 10px 20px; border-radius: 999px; opacity: 0; pointer-events: none; transition: .25s; z-index: 99; max-width: 86vw; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }