:root {
  --bg: #0a0f1e;
  --bg2: #0e172e;
  --panel: #131c33;
  --panel2: #1a2547;
  --line: #26345e;
  --accent: #4d7cfe;
  --accent2: #37e0ff;
  --gold: #ffcf4d;
  --text: #e8edf8;
  --dim: #93a1c4;
  --danger: #ff5470;
  --good: #4ce07a;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  background:
    radial-gradient(1200px 600px at 50% -10%, #14224a 0%, transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg2) 100%);
  color: var(--text);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  overflow-x: hidden;
  -webkit-user-select: none;
  user-select: none;
}

#app {
  max-width: 1180px;
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 10px 12px 14px;
}

/* ===== 顶栏 ===== */
#topbar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  padding: 8px 14px;
  background: linear-gradient(180deg, var(--panel2), var(--panel));
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 6px 24px rgba(0,0,0,.35);
}

.brand {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 1px;
  background: linear-gradient(90deg, var(--accent2), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  white-space: nowrap;
}

.stat {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(0,0,0,.25);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 5px 10px;
  font-size: 14px;
  font-weight: 700;
}
.stat .lbl { color: var(--dim); font-weight: 500; }
.stat .coin { font-size: 16px; }
.stat.money #money { color: var(--gold); font-size: 18px; min-width: 42px; text-align: right; }

/* 时间线 */
.timeline {
  flex: 1 1 220px;
  min-width: 220px;
  display: flex;
  align-items: center;
  gap: 8px;
  position: relative;
}
.tl-end { font-size: 11px; color: var(--dim); white-space: nowrap; }
.tl-track {
  flex: 1;
  height: 8px;
  background: rgba(0,0,0,.4);
  border: 1px solid var(--line);
  border-radius: 6px;
  position: relative;
  overflow: visible;
}
#tl-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 6px;
  transition: width .2s linear;
}
.tl-marker {
  position: absolute;
  top: -4px;
  width: 4px;
  height: 16px;
  background: #fff;
  border-radius: 2px;
  box-shadow: 0 0 8px var(--accent2);
  left: 0%;
}
.tl-now {
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  color: var(--accent2);
  white-space: nowrap;
  pointer-events: none;
}

/* 控制 */
.controls { display: flex; align-items: center; gap: 6px; }
.speed-group { display: flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.speed {
  border: none;
  background: rgba(0,0,0,.25);
  color: var(--dim);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 10px;
  cursor: pointer;
  transition: all .15s;
}
.speed:hover { color: #fff; }
.speed.active {
  background: linear-gradient(180deg, var(--accent), #2f56c8);
  color: #fff;
}
.icon-btn {
  width: 32px; height: 32px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(0,0,0,.25);
  color: var(--text);
  font-size: 15px;
  cursor: pointer;
  transition: all .15s;
}
.icon-btn:hover { border-color: var(--accent); color: #fff; }
.icon-btn.active { background: var(--accent); border-color: var(--accent); }

/* ===== 战场 ===== */
#stage {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
#game {
  display: block;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0,0,0,.5);
  background: #0c1426;
  cursor: default;
}
#game.placing { cursor: crosshair; }
#game.removing { cursor: pointer; }

.hint {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,.55);
  color: var(--dim);
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 20px;
  pointer-events: none;
  opacity: 0;
  transition: opacity .2s;
}
.hint.show { opacity: 1; }

/* ===== 卡牌栏 ===== */
#deck {
  display: flex;
  gap: 8px;
  padding: 8px 10px;
  background: linear-gradient(180deg, var(--panel2), var(--panel));
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow-x: auto;
  box-shadow: 0 6px 24px rgba(0,0,0,.35);
}

.card {
  flex: 0 0 96px;
  min-height: 110px;
  border: 2px solid var(--line);
  border-radius: 10px;
  background: linear-gradient(180deg, #16223f, #101a31);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 6px 4px;
  cursor: pointer;
  position: relative;
  transition: all .15s;
  overflow: hidden;
}
.card:hover { border-color: var(--accent2); transform: translateY(-2px); }
.card.sel { border-color: var(--accent2); box-shadow: 0 0 0 2px rgba(55,224,255,.4), 0 0 16px rgba(77,124,254,.5); }
.card.poor { opacity: .55; }
.card.locked { filter: grayscale(.9); }
.card.locked:hover { border-color: var(--gold); }

.card .ico {
  width: 46px; height: 46px;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px;
  border-radius: 8px;
  background: rgba(255,255,255,.06);
  overflow: hidden;
}
.card .ico img { width: 100%; height: 100%; object-fit: cover; }

.card .nm {
  font-size: 11px;
  font-weight: 700;
  margin-top: 5px;
  line-height: 1.15;
  text-align: center;
  min-height: 24px;
  display: flex; align-items: center;
}
.card .cost {
  font-size: 11px;
  font-weight: 700;
  color: var(--gold);
  margin-top: 3px;
}
.card .lock-ico {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  background: rgba(0,0,0,.35);
}
.card .tier {
  position: absolute;
  top: 4px; right: 5px;
  font-size: 9px;
  color: var(--dim);
}

/* ===== Toast ===== */
#toast {
  position: fixed;
  top: 76px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(10,15,30,.92);
  border: 1px solid var(--accent);
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s, transform .25s;
  z-index: 60;
}
#toast.show { opacity: 1; transform: translateX(-50%) translateY(4px); }

/* ===== 覆盖层 ===== */
#overlay {
  position: fixed;
  inset: 0;
  background: rgba(4,8,18,.78);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s;
}
#overlay.show { opacity: 1; pointer-events: auto; }

.overlay-card {
  width: min(520px, 92vw);
  max-height: 90vh;
  overflow-y: auto;
  background: linear-gradient(180deg, #18264a, #101a31);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 30px 28px;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0,0,0,.6);
}
.oc-logo {
  font-size: 30px;
  font-weight: 800;
  background: linear-gradient(90deg, var(--accent2), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.oc-sub { color: var(--dim); margin-top: 10px; font-size: 14px; line-height: 1.6; }
.oc-result { font-size: 34px; margin-bottom: 8px; }
.oc-stat { color: var(--dim); margin: 6px 0; font-size: 14px; }

.rules {
  margin: 20px 0;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.rule {
  background: rgba(0,0,0,.25);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 13px;
  color: var(--dim);
  line-height: 1.5;
}
.rule b { color: var(--text); }

#btn-start {
  font-size: 17px;
  font-weight: 800;
  color: #fff;
  padding: 12px 34px;
  border: none;
  border-radius: 30px;
  cursor: pointer;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  box-shadow: 0 8px 24px rgba(77,124,254,.45);
  transition: transform .15s;
}
#btn-start:hover { transform: translateY(-2px); }

@media (max-width: 720px) {
  .brand { font-size: 16px; }
  #topbar { gap: 8px; }
  .card { flex: 0 0 82px; min-height: 100px; }
}

/* ===== 股市交易所 ===== */
#market {
  display: none;
  padding: 10px 12px;
  background: linear-gradient(180deg, #15213c, #101a31);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 6px 24px rgba(0,0,0,.35);
}
#market.open { display: block; }

.market-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}
.market-head b { color: var(--accent2); font-size: 15px; }
.market-tip { color: var(--dim); font-size: 12px; }

.market-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.stock {
  background: rgba(0,0,0,.25);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 10px;
  min-width: 0;
}
.st-row1 { display: flex; align-items: center; gap: 6px; }
.st-name { font-size: 13px; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.st-price { font-size: 15px; font-weight: 800; margin-left: auto; }
.st-chg { font-size: 12px; font-weight: 700; min-width: 54px; text-align: right; }
.st-row2 { display: flex; gap: 8px; font-size: 11px; color: var(--dim); margin-top: 4px; }
.st-pl { margin-left: auto; font-weight: 700; }
.st-btns { display: flex; gap: 4px; margin-top: 6px; }
.st-btns button {
  flex: 1;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.05);
  color: var(--text);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 0;
  border-radius: 6px;
  cursor: pointer;
  transition: all .12s;
}
.st-btns button:hover { border-color: var(--accent); color: #fff; }

.up { color: #ff5470; }      /* 红涨 */
.down { color: #4ce07a; }    /* 绿跌 */

@media (max-width: 720px) {
  .market-list { grid-template-columns: repeat(2, 1fr); }
}

/* ===== 新玩法 UI ===== */
.bb {
  font-size: 12px;
  font-weight: 800;
  color: var(--gold);
  white-space: nowrap;
}
.bb:empty { display: none; }

#buff-panel, #tech-panel {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(440px, 92vw);
  max-height: 86vh;
  overflow-y: auto;
  background: linear-gradient(180deg, #18264a, #101a31);
  border: 1px solid var(--accent);
  border-radius: 16px;
  padding: 18px;
  z-index: 90;
  display: none;
  box-shadow: 0 20px 60px rgba(0,0,0,.6);
}
#buff-panel.show, #tech-panel.show { display: block; }

.buff-title {
  font-size: 16px;
  font-weight: 800;
  color: var(--accent2);
  margin-bottom: 12px;
  text-align: center;
}
.buff-list { display: flex; flex-direction: column; gap: 8px; }
.buff-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(0,0,0,.25);
  color: var(--text);
  cursor: pointer;
  transition: all .15s;
  text-align: left;
}
.buff-btn:hover { border-color: var(--accent2); transform: translateX(3px); }
.buff-btn b { font-size: 14px; }
.buff-btn span { font-size: 12px; color: var(--dim); }

.tech-list { display: flex; flex-direction: column; gap: 8px; }
.tech-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(0,0,0,.25);
}
.tech-row.unlocked { border-color: var(--good); }
.tech-info { display: flex; flex-direction: column; }
.tech-info b { font-size: 14px; }
.tech-info span { font-size: 12px; color: var(--dim); }
.tech-btn {
  flex: 0 0 auto;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.06);
  color: var(--text);
  font-size: 12px;
  font-weight: 700;
  padding: 6px 10px;
  border-radius: 8px;
  cursor: pointer;
  transition: all .12s;
}
.tech-btn:hover:not(:disabled) { border-color: var(--accent2); }
.tech-btn:disabled { opacity: .45; cursor: not-allowed; }