:root {
  --bg1: #0b0e1a;
  --bg2: #141b30;
  --card: #171d33;
  --line: #262f52;
  --txt: #e8ecf8;
  --dim: #8a93b5;
  --acc: #5b8cff;
  --acc2: #8f6bff;
  --ok: #22e58c;
  --bad: #ff5470;
  --warn: #ffb020;
  --gold: #ffd166;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: linear-gradient(160deg, var(--bg1), var(--bg2) 70%);
  background-attachment: fixed;
  color: var(--txt);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  min-height: 100vh;
}
.wrap { max-width: 1080px; margin: 0 auto; padding: 20px 18px 10px; }

/* ---------- 头部 ---------- */
header { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-bottom: 18px; }
.logo { font-size: 22px; font-weight: 800; letter-spacing: .5px; }
.logo span {
  font-size: 13px; font-weight: 600; color: var(--dim); margin-left: 6px;
  background: linear-gradient(90deg, var(--acc), var(--acc2));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.tabs { display: flex; gap: 6px; background: #10152a; border: 1px solid var(--line); padding: 5px; border-radius: 999px; }
.tab {
  border: none; background: transparent; color: var(--dim); font-size: 14px; font-weight: 600;
  padding: 8px 16px; border-radius: 999px; cursor: pointer; transition: .15s;
}
.tab:hover { color: var(--txt); }
.tab.active { background: linear-gradient(135deg, var(--acc), var(--acc2)); color: #fff; box-shadow: 0 4px 14px rgba(91, 140, 255, .35); }

/* ---------- 面板 / 卡片 ---------- */
.panel { display: none; }
.panel.active { display: block; animation: fadein .25s ease; }
@keyframes fadein { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 16px;
  padding: 16px 18px; margin-bottom: 14px;
}
h3 { margin: 0 0 12px; font-size: 15px; }
.dim { color: var(--dim); font-size: 13px; }
.warn { color: var(--warn); font-size: 13px; margin-top: 4px; }
kbd {
  background: #222b52; border: 1px solid #37427b; border-bottom-width: 2px;
  border-radius: 6px; padding: 1px 8px; font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 13px;
}
a { color: #8fa3ff; text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- 分段选择器 ---------- */
.field label { display: block; font-size: 12px; color: var(--dim); margin-bottom: 6px; }
.seg { display: flex; gap: 6px; background: #10152a; border: 1px solid var(--line); padding: 4px; border-radius: 10px; }
.seg button {
  flex: 1; border: none; background: transparent; color: var(--dim);
  padding: 7px 10px; border-radius: 8px; font-size: 13px; font-weight: 600; cursor: pointer; transition: .15s;
  white-space: nowrap;
}
.seg button:hover { color: var(--txt); }
.seg button.on { background: linear-gradient(135deg, #3350c8, #6a4bd0); color: #fff; }
.seg.col { flex-direction: column; }
.seg.col button { text-align: left; }

/* ---------- 反应力测试 ---------- */
.rx-settings { display: flex; flex-wrap: wrap; gap: 18px; align-items: flex-end; }
.rx-settings .field { flex: 1; min-width: 240px; }
.rx-bests { display: flex; gap: 14px; flex-wrap: wrap; font-size: 13px; color: var(--dim); padding-bottom: 6px; }
.rx-bests b { color: var(--gold); font-size: 15px; margin-left: 2px; }

.rx-area {
  min-height: 340px; border-radius: 20px; border: 1px solid var(--line);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  cursor: pointer; user-select: none; -webkit-user-select: none; text-align: center;
  transition: background .12s ease, box-shadow .2s; margin-bottom: 14px; padding: 20px;
  background: #232b4d;
}
.rx-area:active { transform: scale(.995); }
.rx-area.wait  { background: linear-gradient(160deg, #7e1f36, #5c1628); }
.rx-area.go    { background: linear-gradient(160deg, #0fd977, #0a9d55); }
.rx-area.nogo  { background: linear-gradient(160deg, #d3314f, #8f1f37); }
.rx-area.res   { background: #2a3560; }
.rx-area.early { background: #4d3a72; }
.rx-area.done  { background: linear-gradient(135deg, #2c3a80, #55309c); box-shadow: 0 8px 30px rgba(85, 48, 156, .35); }
.rx-title { font-size: 54px; font-weight: 800; line-height: 1.15; text-shadow: 0 4px 18px rgba(0,0,0,.25); }
.rx-sub { margin-top: 10px; font-size: 15px; line-height: 1.7; color: rgba(255,255,255,.85); }
.rx-sub .dim { color: rgba(255,255,255,.55); }

.rx-round-chips { display: flex; gap: 8px; margin-top: 20px; flex-wrap: wrap; justify-content: center; min-height: 24px; }
.chip {
  padding: 3px 10px; border-radius: 999px; background: rgba(0,0,0,.3);
  font-size: 13px; font-weight: 600; font-family: ui-monospace, Menlo, Consolas, monospace;
}
.chip.miss { background: rgba(255,84,112,.35); }

.rx-result { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; text-align: center; }
.rres .k { display: block; font-size: 12px; color: var(--dim); margin-bottom: 4px; }
.rres b { font-size: 20px; }

.rx-bottom { display: grid; grid-template-columns: 1.5fr 1fr; gap: 14px; }
.rx-bottom .card { margin-bottom: 14px; }
.rx-chart {
  display: flex; align-items: flex-end; gap: 6px; height: 120px;
  background: #10152a; border-radius: 10px; padding: 8px;
}
.rx-chart .bar { flex: 1; border-radius: 4px 4px 0 0; min-height: 6px; opacity: .9; }
.rx-chart .empty { align-self: center; margin: 0 auto; color: var(--dim); font-size: 13px; }
.rx-last { margin-top: 10px; font-size: 13px; color: var(--dim); }
.rx-tips ul { margin: 0; padding-left: 18px; font-size: 13px; line-height: 1.9; color: #b9c2dd; }

/* ---------- 连击测试 ---------- */
.cps-settings { display: flex; flex-wrap: wrap; gap: 18px; align-items: flex-end; }
.cps-settings .field { flex: 1; min-width: 240px; }
.cps-bests { display: flex; gap: 14px; flex-wrap: wrap; font-size: 13px; color: var(--dim); padding-bottom: 6px; }
.cps-bests b { color: var(--gold); font-size: 15px; margin-left: 2px; }

.cps-area {
  position: relative; overflow: hidden;
  min-height: 300px; border-radius: 20px; border: 1px solid var(--line);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  cursor: pointer; user-select: none; -webkit-user-select: none; text-align: center;
  background: #232b4d; margin-bottom: 14px; padding: 20px;
  transition: background .12s ease;
}
.cps-area.go { background: linear-gradient(160deg, #0f6fd9, #0a4a9d); }
.cps-area.done { background: linear-gradient(135deg, #2c3a80, #55309c); box-shadow: 0 8px 30px rgba(85, 48, 156, .35); }
.cps-area.armed { background: linear-gradient(160deg, #0fd977, #0a9d55); }

.cps-count {
  font-size: 96px; font-weight: 800; line-height: 1; margin-bottom: 6px;
  font-variant-numeric: tabular-nums; text-shadow: 0 4px 20px rgba(0,0,0,.28);
}
.cps-title { font-size: 26px; font-weight: 800; }
.cps-sub { margin-top: 10px; font-size: 14px; color: rgba(255,255,255,.8); line-height: 1.7; max-width: 520px; }
.cps-bar-wrap {
  position: absolute; left: 0; right: 0; bottom: 0; height: 8px; background: rgba(0,0,0,.3);
}
#cps-bar { display: block; height: 100%; width: 100%; background: linear-gradient(90deg, var(--gold), #ff8c42); }
.cps-flash {
  position: absolute; inset: 0; pointer-events: none; opacity: 0;
  background: radial-gradient(circle at 50% 50%, rgba(255,255,255,.3), transparent 62%);
}
.cps-flash.on { animation: cpsflash .13s ease-out; }
@keyframes cpsflash { 0% { opacity: 1; } 100% { opacity: 0; } }

.cps-result { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; text-align: center; }
.cps-tips ul { margin: 0; padding-left: 18px; font-size: 13px; line-height: 1.95; color: #b9c2dd; }
.cps-tips b { color: var(--txt); }

/* ---------- 小键盘练习 ---------- */
.kp-layout { display: grid; grid-template-columns: minmax(0,1fr) 290px; gap: 14px; align-items: start; }
.kp-main { position: relative; overflow: hidden; }
.kp-head { display: flex; justify-content: space-between; align-items: baseline; }
.kp-title { font-size: 18px; font-weight: 800; }
.kp-timer { font-size: 18px; font-weight: 700; font-family: ui-monospace, Menlo, Consolas, monospace; color: var(--gold); }
.kp-progress { height: 6px; background: #10152a; border-radius: 3px; overflow: hidden; margin: 12px 0 14px; }
#kp-bar { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--acc), var(--acc2)); transition: width .1s linear; }

.kp-idle { margin: auto; text-align: center; line-height: 2; }
.kp-idle p { margin: 6px 0; font-size: 15px; }

/* 只显示当前这一组，整行大字号连续排列 */
.kp-stage {
  min-height: 260px; display: flex; align-items: center; justify-content: center;
  padding: 10px 20px;
  background: #f7f8fb; border-radius: 12px; margin: 0 2px;
}
.kp-current {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 8px; max-width: 100%;
  font-family: "Courier New", Courier, monospace;
}
.kp-current .gno {
  font-family: -apple-system, "PingFang SC", sans-serif;
  font-size: 13px; color: #8c93a8; font-weight: 500; letter-spacing: 1px;
}
.kp-digits { display: flex; align-items: baseline; justify-content: center; gap: 0 2px; }
.kp-current i {
  position: relative;
  font-style: normal; font-weight: 700;
  font-size: 1em; line-height: 1.05; letter-spacing: 1px;
  color: #1f2430; transition: color .1s;
}
/* 给 0 手工画一道斜杠，任何字体下都能和 8 区分 */
.kp-current i.zero::after {
  content: ""; position: absolute; left: 50%; top: 47%;
  width: 1.5px; height: 58%; transform: translate(-50%, -50%) rotate(32deg);
  background: currentColor; border-radius: 1px;
}
.kp-current i.ok { color: #0a8f52; }
.kp-current i.bad { color: #d92b45; text-decoration: line-through; }
.kp-current i.cursor {
  background: #e3e9fb; box-shadow: inset 0 -5px 0 #3b6bd6;
}
@keyframes kpblink { 50% { background: transparent; box-shadow: none; } }

/* 位数多时自动缩小，避免一行放不下而折行 */
.kp-current { flex-wrap: nowrap; font-size: 88px; }
@media (max-width: 880px) {
  .kp-current { font-size: 52px; }
}
@keyframes kpblink { 50% { border-bottom-color: transparent; } }

@media (max-width: 880px) {
  .kp-current i { font-size: 40px; }
}

.kp-overlay {
  position: absolute; inset: 0; z-index: 5;
  background: rgba(10, 13, 26, .9); backdrop-filter: blur(4px);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; border-radius: 16px; gap: 10px; padding: 20px;
}
.hidden { display: none !important; }
.ov-count { font-size: 88px; font-weight: 800; }
.ov-title { font-size: 22px; font-weight: 800; }
.ov-num { font-size: 56px; font-weight: 800; color: var(--gold); line-height: 1; }
.ov-num .unit { font-size: 18px; margin-left: 6px; color: var(--dim); font-weight: 600; }
.ov-rank { font-size: 18px; font-weight: 700; }
.new-rec { color: var(--gold); font-weight: 700; animation: fadein .4s; }
.ov-detail { font-size: 13px; color: var(--dim); line-height: 1.9; }

.kp-side { display: flex; flex-direction: column; gap: 12px; }
.btn-start {
  border: none; border-radius: 12px; padding: 14px; font-size: 18px; font-weight: 800; color: #fff;
  background: linear-gradient(135deg, var(--acc), var(--acc2)); cursor: pointer;
  box-shadow: 0 6px 20px rgba(91, 140, 255, .3); transition: .15s;
}
.btn-start:hover { filter: brightness(1.12); }
.btn-start .dim { color: rgba(255,255,255,.7); font-size: 12px; font-weight: 600; margin-left: 4px; }
.btn-plain {
  border: 1px solid var(--line); background: transparent; color: var(--dim);
  padding: 8px 18px; border-radius: 999px; font-size: 13px; cursor: pointer;
}
.btn-plain:hover { color: var(--txt); border-color: #3a4a8a; }

.ks-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.ks .k, .ks-row { font-size: 12px; color: var(--dim); display: block; margin-bottom: 3px; }
.ks b { font-size: 18px; }
.ks .sep, .kp-stats .sep { font-style: normal; color: var(--dim); margin: 0 3px; font-weight: 400; }
.kp-best .ks-row b { color: var(--gold); font-size: 16px; margin: 0 2px; }
.kp-settings .field + .field { margin-top: 12px; }
.kp-settings .dim { margin-top: 12px; }

.kp-settings-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 14px;
  margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--line);
}
.kp-settings-row .seg button { font-size: 12px; padding: 7px 4px; }
.kp-set-hint { margin: 10px 0 0; font-size: 12px; }

.kp-hist-list { display: flex; flex-direction: column; gap: 6px; }
.kh-row {
  display: grid; grid-template-columns: auto 42px 1fr; align-items: baseline; gap: 8px;
  font-size: 12px; padding: 5px 7px; background: #10152a; border-radius: 8px;
}
.kh-time { color: var(--dim); font-size: 11px; }
.kh-score { font-weight: 800; font-size: 15px; text-align: right; }
.kh-meta { color: #b9c2dd; text-align: right; font-size: 11px; }

/* ---------- 数据洞察 ---------- */
.ins-head { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.ins-head h3 { margin: 0; }
.ins-head .dim { margin: 0; flex-basis: 100%; }
.ins-switch { display: flex; gap: 5px; background: #10152a; border: 1px solid var(--line); padding: 4px; border-radius: 999px; }
.ins-switch button {
  border: none; background: transparent; color: var(--dim); font-size: 13px; font-weight: 600;
  padding: 6px 14px; border-radius: 999px; cursor: pointer; transition: .15s;
}
.ins-switch button:hover { color: var(--txt); }
.ins-switch button.on { background: linear-gradient(135deg, var(--acc), var(--acc2)); color: #fff; }

.ins-metrics { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; margin-bottom: 14px; }
.ins-metric {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 12px 14px;
}
.ins-metric .k { display: block; font-size: 11px; color: var(--dim); margin-bottom: 5px; }
.ins-metric b { font-size: 20px; font-variant-numeric: tabular-nums; }
.ins-metric b .u { font-size: 12px; font-weight: 500; color: var(--dim); margin-left: 2px; }
.ins-metric .sub { display: block; font-size: 11px; color: var(--dim); margin-top: 3px; }

.ins-charts { display: grid; grid-template-columns: 1.6fr 1fr; gap: 14px; }
.ins-charts .card { margin-bottom: 14px; }

.ins-trend {
  display: flex; align-items: flex-end; gap: 5px; height: 150px;
  background: #10152a; border-radius: 10px; padding: 10px 10px 0;
  border-bottom: 1px solid #2a3457;
}
.ins-trend .col { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; height: 100%; position: relative; }
.ins-trend .col i {
  display: block; width: 100%; max-width: 34px; border-radius: 3px 3px 0 0;
  transition: filter .15s;
}
.ins-trend .col:hover i { filter: brightness(1.25); }
.ins-trend .col span {
  position: absolute; top: -2px; font-size: 10px; color: var(--dim);
  font-variant-numeric: tabular-nums; white-space: nowrap;
}
.ins-trend .empty { align-self: center; margin: 0 auto; color: var(--dim); font-size: 13px; }
.ins-axis { display: flex; gap: 5px; padding: 6px 10px 0; }
.ins-axis span { flex: 1; text-align: center; font-size: 10px; color: #5f6a8c; }

.ins-stability { display: flex; flex-direction: column; gap: 14px; }
.stab-row .k { display: flex; justify-content: space-between; font-size: 12px; color: var(--dim); margin-bottom: 6px; }
.stab-row .k b { color: var(--txt); font-size: 12px; }
.stab-bar { height: 8px; background: #10152a; border-radius: 4px; overflow: hidden; }
.stab-bar i { display: block; height: 100%; border-radius: 4px; transition: width .4s; }
.stab-note { font-size: 12px; color: #b9c2dd; line-height: 1.7; margin: 0; padding-top: 4px; border-top: 1px solid var(--line); }
.stab-empty { color: var(--dim); font-size: 13px; margin: 0; }

.ins-recent { display: flex; flex-direction: column; gap: 7px; }
.rec-row {
  display: grid; grid-template-columns: 80px 1fr auto auto; gap: 10px; align-items: center;
  font-size: 13px; padding: 8px 10px; background: #10152a; border-radius: 9px;
}
.rec-row .t { color: var(--dim); font-size: 11px; }
.rec-row .v { font-variant-numeric: tabular-nums; }
.rec-row .rk { font-size: 12px; font-weight: 700; }
.rec-row.best-row { border: 1px solid rgba(255, 209, 102, .35); background: rgba(255, 209, 102, .06); }
.ins-recent .empty { color: var(--dim); font-size: 13px; margin: 0; padding: 8px 0; }

/* ---------- 记录页 ---------- */
.st-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.st-grid .card { margin-bottom: 14px; min-width: 0; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; color: var(--dim); font-weight: 600; padding: 6px 8px; border-bottom: 1px solid var(--line); white-space: nowrap; }
td { padding: 7px 8px; border-bottom: 1px solid #1e2749; white-space: nowrap; }
td.empty { color: var(--dim); text-align: center; padding: 22px 0; }
.btn-ghost {
  float: right; border: 1px solid var(--line); background: transparent; color: var(--dim);
  font-size: 12px; padding: 3px 10px; border-radius: 999px; cursor: pointer;
}
.btn-ghost:hover { color: var(--bad); border-color: var(--bad); }

/* ---------- 其他 ---------- */
.toast {
  position: fixed; left: 50%; bottom: 30px; transform: translateX(-50%);
  background: #2a3560; border: 1px solid #3a4a8a; color: var(--txt);
  padding: 10px 20px; border-radius: 999px; font-size: 14px;
  opacity: 0; pointer-events: none; transition: .25s; z-index: 99;
}
.toast.show { opacity: 1; }
footer { margin: 26px 0 12px; color: #667092; font-size: 12px; text-align: center; line-height: 1.8; }

@media (max-width: 880px) {
  .kp-layout { grid-template-columns: 1fr; }
  .rx-bottom, .st-grid { grid-template-columns: 1fr; }
  .rx-title { font-size: 40px; }
  .rx-result { grid-template-columns: repeat(2, 1fr); }
  .cps-result { grid-template-columns: repeat(2, 1fr); }
  header { flex-direction: column; align-items: flex-start; }
}