:root {
  --bg: #f6f7fb;
  --card: #ffffff;
  --ink: #1f2430;
  --muted: #6b7280;
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --accent: #eef2ff;
  --border: #e5e7eb;
  --radius: 14px;
  --shadow: 0 8px 24px rgba(31, 36, 48, 0.06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: linear-gradient(160deg, #eef2ff 0%, var(--bg) 45%);
  color: var(--ink);
  min-height: 100vh;
  line-height: 1.6;
}

.app {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 20px 80px;
}

.hero { text-align: center; margin-bottom: 28px; }
.hero h1 { font-size: 30px; margin: 0 0 8px; letter-spacing: 1px; }
.subtitle { color: var(--muted); margin: 0; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  margin-bottom: 24px;
}

.form-card .grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 560px) { .form-card .grid { grid-template-columns: 1fr; } }

.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.field > span { font-size: 14px; font-weight: 600; color: #374151; }

input[type="text"], textarea, select {
  width: 100%;
  padding: 10px 12px;
  font-size: 15px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  transition: border-color .15s, box-shadow .15s;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--accent);
}
textarea { resize: vertical; min-height: 72px; }

.btn {
  width: 100%;
  padding: 13px;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: transform .05s, opacity .15s;
}
.btn:hover { opacity: .94; }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .6; cursor: not-allowed; }

.output-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.output-head h2 { margin: 0; font-size: 20px; }

.status {
  font-size: 13px;
  color: var(--primary);
  background: var(--accent);
  padding: 4px 10px;
  border-radius: 999px;
}
.status.done { color: #15803d; background: #f0fdf4; }
.status.error { color: #b91c1c; background: #fef2f2; }

.result {
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 15px;
  padding: 4px 2px;
}
.result::after {
  content: '';
  display: inline-block;
  width: 8px; height: 1em;
  background: var(--primary);
  vertical-align: text-bottom;
  animation: blink 1s steps(2) infinite;
}
.result.stream-done::after { display: none; }
@keyframes blink { 50% { opacity: 0; } }

/* 结果内部段落美化 */
.result h3 { margin: 16px 0 6px; color: var(--primary-dark); }
.result .name-line { font-size: 17px; font-weight: 700; color: var(--ink); }