:root {
  --bg: #09131d;
  --panel: rgba(13, 21, 31, 0.95);
  --panel-line: rgba(149, 195, 238, 0.14);
  --text: #eff6ff;
  --muted: #9bafc3;
  --accent: #89d8ff;
  --accent-2: #75efc7;
  --danger: #ff9d9d;
  --ok: #8df0c8;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.46);
  --title-font: "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --ui-font: "Avenir Next", "Segoe UI", "PingFang SC", "Noto Sans SC", sans-serif;
  --mono-font: "Cascadia Mono", "JetBrains Mono", Consolas, monospace;
}

* { box-sizing: border-box; }

body.page-stock {
  --bg: #081420;
  --panel: rgba(11, 21, 33, 0.95);
  --panel-line: rgba(125, 211, 252, 0.18);
  --accent: #7fd5ff;
  --accent-2: #8ff0da;
  background:
    radial-gradient(circle at top left, rgba(127, 213, 255, 0.16), transparent 24%),
    radial-gradient(circle at bottom right, rgba(143, 240, 218, 0.12), transparent 24%),
    linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0)),
    var(--bg);
}

body.page-doubao {
  --bg: #1a1010;
  --panel: rgba(28, 18, 18, 0.95);
  --panel-line: rgba(255, 179, 107, 0.18);
  --muted: #d1b5ac;
  --accent: #ffbe63;
  --accent-2: #ff8e74;
  background:
    radial-gradient(circle at top left, rgba(255, 190, 99, 0.16), transparent 24%),
    radial-gradient(circle at bottom right, rgba(255, 142, 116, 0.14), transparent 24%),
    linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0)),
    var(--bg);
}

body {
  margin: 0;
  min-height: 100vh;
  padding: 24px;
  display: grid;
  place-items: center;
  color: var(--text);
  font-family: var(--ui-font);
  background:
    radial-gradient(circle at top left, rgba(137, 216, 255, 0.12), transparent 24%),
    radial-gradient(circle at bottom right, rgba(117, 239, 199, 0.12), transparent 24%),
    linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0)),
    var(--bg);
}

.wrap {
  width: min(760px, 100%);
  padding: 34px;
  border-radius: 28px;
  background: var(--panel);
  border: 1px solid var(--panel-line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  position: relative;
  overflow: hidden;
}

.wrap::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.page-tag {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--panel-line);
  background: rgba(255,255,255,0.04);
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 14px;
}

h1 {
  margin: 0 0 18px;
  font: 700 clamp(40px, 8vw, 56px)/0.92 var(--title-font);
  letter-spacing: -0.05em;
}

label {
  display: block;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 700;
}

input,
textarea {
  width: 100%;
  border-radius: 16px;
  border: 1px solid var(--panel-line);
  background: rgba(7, 12, 18, 0.95);
  color: var(--text);
  font: 500 15px/1.55 var(--ui-font);
}

input {
  min-height: 54px;
  padding: 0 15px;
}

textarea {
  min-height: 220px;
  padding: 14px 15px;
  resize: vertical;
  font-family: var(--mono-font);
  font-size: 13px;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 20px;
}

.result-field {
  min-width: 0;
}

.result-field.full {
  grid-column: 1 / -1;
}

.result-input-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
}

.result-input {
  font-family: var(--mono-font);
  font-size: 15px;
}

.code-input {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: rgba(137, 216, 255, 0.46);
  box-shadow: 0 0 0 4px rgba(137, 216, 255, 0.12);
}

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
}

button {
  min-height: 50px;
  padding: 0 18px;
  border: none;
  border-radius: 14px;
  cursor: pointer;
  font: 700 14px/1 var(--ui-font);
}

.primary {
  color: #07110d;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 14px 30px rgba(117, 239, 199, 0.14);
}

.secondary {
  color: var(--text);
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--panel-line);
}

.mini-copy {
  min-height: 54px;
  min-width: 78px;
  padding: 0 14px;
  color: var(--text);
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--panel-line);
  box-shadow: none;
 }

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  box-shadow: none;
}

.msg {
  min-height: 24px;
  margin-top: 14px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
  font-weight: 700;
}

.msg.err { color: var(--danger); }
.msg.ok { color: var(--ok); }

.bottom-links {
  margin-top: 18px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 13px;
}

.bottom-links a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid rgba(137, 216, 255, 0.22);
}

body.page-doubao .bottom-links a {
  border-bottom-color: rgba(255, 190, 99, 0.28);
}

@media (max-width: 640px) {
  body {
    padding: 14px;
  }

  .wrap {
    width: 100%;
    padding: 22px 18px;
    border-radius: 22px;
  }

  .actions {
    gap: 10px;
  }

  .actions button {
    flex: 1 1 calc(50% - 10px);
    min-width: 0;
  }

  .result-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .result-field.full {
    grid-column: auto;
  }

  .result-input-row {
    grid-template-columns: 1fr;
  }

  textarea {
    min-height: 160px;
  }
}