/* ===== 基础 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --cream: #f6f4ee;
  --dark: #16181d;
  --dark2: #1e2128;
  --gold: #e0a92e;
  --gold-dim: #b98a1f;
  --line: #d9d4c7;
  --muted: #8a8578;
  --green: #4caf7d;
  --red: #e05555;
}
html, body { height: 100%; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--cream);
  color: var(--dark);
}
kbd {
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(0,0,0,.15);
  border-radius: 4px;
  padding: 1px 7px;
  font-size: 12px;
  font-family: inherit;
  color: inherit;
  opacity: .75;
}

/* ===== 页面切换 ===== */
.page { display: none; min-height: 100vh; padding: 24px; }
.page.active { display: block; }

/* ===== 首页 ===== */
#page-home { display: none; align-items: center; justify-content: center; }
#page-home.active { display: flex; }
.home-wrap { text-align: center; width: 400px; max-width: 92vw; }
.logo-key {
  width: 110px; height: 110px; margin: 0 auto 20px;
  background: linear-gradient(160deg, #2a2e37, #101216);
  border-radius: 26px;
  display: flex; align-items: center; justify-content: center;
  font-size: 56px; font-weight: 800; color: var(--gold);
  box-shadow: 0 10px 0 #0b0d10, 0 18px 30px rgba(0,0,0,.25);
  font-family: Georgia, serif;
}
.home-title { font-size: 38px; letter-spacing: 10px; font-weight: 800; }
.home-sub { color: var(--muted); margin: 8px 0 28px; font-size: 14px; }
.home-menu { display: flex; flex-direction: column; gap: 14px; }
.home-tip { margin-top: 24px; font-size: 12px; color: var(--muted); }

/* ===== 按钮 ===== */
.btn {
  cursor: pointer; font-size: 16px; font-weight: 600;
  border-radius: 999px; padding: 14px 24px;
  display: flex; align-items: center; justify-content: center; gap: 10px;
  transition: transform .12s, box-shadow .12s;
  border: 2px solid var(--dark);
}
.btn:active { transform: scale(.97); }
.btn-dark { background: var(--dark); color: var(--gold); }
.btn-dark:hover { box-shadow: 0 6px 16px rgba(0,0,0,.2); }
.btn-light { background: transparent; color: var(--dark); }
.btn-light:hover { background: rgba(0,0,0,.05); }
.btn-back {
  background: transparent; border: 2px solid var(--dark);
  font-size: 14px; padding: 8px 18px; border-radius: 8px;
  display: inline-flex; gap: 6px; width: auto;
}
.btn .ic { color: var(--gold); }
.btn-light .ic { color: var(--dark); }

/* ===== 顶栏 ===== */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  max-width: 1080px; margin: 0 auto 18px; flex-wrap: wrap; gap: 10px;
}
.mode-tabs {
  display: inline-flex; border: 2px solid var(--dark); border-radius: 999px;
  overflow: hidden; background: transparent;
}
.mode-tab {
  border: none; background: transparent; cursor: pointer;
  padding: 9px 22px; font-size: 14px; font-weight: 600; color: var(--muted);
}
.mode-tab.active { background: var(--dark); color: var(--gold); }

/* ===== 面板 ===== */
.panel {
  max-width: 1080px; margin: 0 auto;
  background: #fff; border: 1px solid var(--line);
  border-radius: 16px; padding: 28px;
  box-shadow: 0 2px 10px rgba(0,0,0,.04);
}
.panel-title { font-size: 26px; font-weight: 800; }
.panel-desc { color: var(--muted); font-size: 13px; margin-bottom: 4px; }

/* ===== 关卡列表 ===== */
.level-list { display: flex; flex-direction: column; gap: 12px; margin-top: 18px; }
.level-item {
  display: flex; align-items: center; gap: 18px;
  border: 2px solid var(--line); border-radius: 14px; padding: 18px 22px;
  cursor: pointer; transition: border-color .15s, transform .15s;
  background: #fff;
}
.level-item:hover { border-color: var(--dark); transform: translateX(4px); }
.level-num {
  width: 46px; height: 46px; border-radius: 12px; flex-shrink: 0;
  background: var(--dark); color: var(--gold);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 800;
}
.level-info { flex: 1; }
.level-name { font-weight: 700; font-size: 17px; }
.level-desc { color: var(--muted); font-size: 13px; margin-top: 2px; }
.level-best { font-size: 12px; color: var(--gold-dim); text-align: right; min-width: 130px; }

.level-group {
  margin: 14px 0 2px; font-size: 13px; font-weight: 700; color: var(--gold-dim);
  letter-spacing: 2px;
}
.level-select {
  border: 2px solid var(--dark); border-radius: 999px;
  background: transparent; padding: 9px 18px;
  font-size: 14px; font-weight: 600; font-family: inherit;
  cursor: pointer; color: var(--dark);
}
.level-select:focus { outline: none; box-shadow: 0 0 0 3px rgba(224,169,46,.35); }

/* ===== 游戏页 ===== */
.game-head { display: flex; justify-content: space-between; align-items: flex-start; }
.game-progress { color: var(--gold-dim); font-weight: 800; font-size: 18px; }
.stat-cards {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 14px; margin: 20px 0;
}
.stat-card {
  border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px;
  background: #faf9f5;
}
.stat-label { font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.stat-value { font-size: 28px; font-weight: 800; }

.typing-area {
  position: relative;
  background: var(--dark); border-radius: 14px;
  padding: 34px 30px; min-height: 200px;
  cursor: text;
}
.typing-text {
  font-family: "SF Mono", Consolas, "Courier New", monospace;
  font-size: 27px; line-height: 1.9; letter-spacing: 1px;
  word-break: break-word; user-select: none;
}
.typing-text .ch { color: #5c6470; border-radius: 4px; transition: color .05s; }
.typing-text .ch.correct { color: #f2f3f5; }
.typing-text .ch.wrong { color: #fff; background: var(--red); }
.typing-text .ch.current {
  color: var(--gold);
  box-shadow: inset 0 0 0 2px var(--gold);
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { box-shadow: inset 0 0 0 2px transparent; } }
.typing-area.flash { animation: shake .18s; }
@keyframes shake {
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}
#hidden-input {
  position: absolute; inset: 0; opacity: 0; width: 100%; height: 100%;
  cursor: text; font-size: 16px;
}
.game-foot { display: flex; align-items: center; gap: 16px; margin-top: 18px; flex-wrap: wrap; }
.game-hint { color: var(--muted); font-size: 13px; }

/* ===== 结算弹窗 ===== */
.result-mask {
  display: none; position: fixed; inset: 0; z-index: 50;
  background: rgba(20,20,20,.45); backdrop-filter: blur(3px);
  align-items: center; justify-content: center;
}
.result-mask.show { display: flex; }
.result-card {
  background: #fff; border-radius: 18px; padding: 34px 40px;
  width: 480px; max-width: 92vw; text-align: center;
  box-shadow: 0 24px 60px rgba(0,0,0,.3);
  animation: pop .25s ease-out;
}
@keyframes pop { from { transform: scale(.9); opacity: 0; } }
.result-card h3 { font-size: 24px; margin-bottom: 22px; }
.result-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 16px; }
.result-grid > div {
  border: 1px solid var(--line); border-radius: 12px; padding: 14px;
  background: #faf9f5;
}
.result-grid span { display: block; font-size: 26px; font-weight: 800; }
.result-grid label { font-size: 12px; color: var(--muted); }
.result-best { color: var(--gold-dim); font-size: 13px; margin-bottom: 18px; min-height: 18px; }
.result-btns { display: flex; gap: 10px; }
.result-btns .btn { flex: 1; font-size: 14px; padding: 12px 8px; }

/* ===== 战绩表 ===== */
.rec-table { width: 100%; border-collapse: collapse; margin-top: 18px; }
.rec-table th, .rec-table td {
  text-align: left; padding: 12px 14px; font-size: 14px;
  border-bottom: 1px solid var(--line);
}
.rec-table th { color: var(--muted); font-weight: 600; font-size: 13px; }
.rec-empty { color: var(--muted); text-align: center; padding: 30px 0; }

/* ===== 设置 ===== */
.setting-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 4px; border-bottom: 1px solid var(--line); font-size: 15px;
}
.toggle {
  width: 52px; height: 28px; border-radius: 999px; border: none;
  background: #d5d0c4; cursor: pointer; position: relative; transition: background .2s;
}
.toggle::after {
  content: ""; position: absolute; top: 3px; left: 3px;
  width: 22px; height: 22px; border-radius: 50%; background: #fff;
  transition: left .2s; box-shadow: 0 1px 4px rgba(0,0,0,.25);
}
.toggle.on { background: var(--dark); }
.toggle.on::after { left: 27px; background: var(--gold); }

@media (max-width: 720px) {
  .stat-cards { grid-template-columns: repeat(2, 1fr); }
  .typing-text { font-size: 21px; }
  .level-best { display: none; }
}