:root {
  --bg: #f3ebe1;
  --card: #fffaf4;
  --ink: #2a221b;
  --muted: #8a7c70;
  --line: #e6d9cc;
  --accent: #b55238;
  --accent-ink: #fffaf4;
  --hold: #f7efe6;
  --bubble: #efe4d4;
  --bubble-wait: #ece7e0;
  --chip: #fff;
  --shadow: 0 10px 30px rgba(64, 42, 28, 0.06);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background:
    radial-gradient(1200px 500px at 50% -80px, #fbe9dc 0%, transparent 70%),
    var(--bg);
  color: var(--ink);
  font-family: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei",
    ui-sans-serif, system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

.page {
  width: min(440px, 100%);
  margin: 0 auto;
  padding: 36px 20px 64px;
}

.hero { text-align: center; margin-bottom: 22px; }

h1 {
  margin: 0;
  font-family: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", serif;
  font-size: 38px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-indent: 0.22em;
}

.sub {
  margin: 6px 0 0;
  font-size: 12px;
  letter-spacing: 0.28em;
  text-indent: 0.28em;
  color: var(--muted);
}

.tag {
  margin: 16px 0 0;
  color: var(--ink);
  font-size: 15px;
}

.composer, .card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.composer { padding: 16px; }

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.chip {
  border: 1px solid var(--line);
  background: var(--chip);
  color: var(--ink);
  border-radius: 999px;
  padding: 8px 14px;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}

.chip:hover, .chip[aria-pressed="true"] {
  border-color: var(--accent);
  color: var(--accent);
}

.chip:disabled { opacity: 0.45; cursor: not-allowed; }

textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 14px;
  padding: 12px 14px;
  font: inherit;
  resize: vertical;
  min-height: 120px;
  color: var(--ink);
}

textarea:focus, .chip:focus-visible, .primary:focus-visible, .copy:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

textarea:disabled { background: #f4eee7; color: #6e645c; }

.hint {
  margin: 8px 0 0;
  color: var(--accent);
  font-size: 13px;
}

.primary {
  width: 100%;
  margin-top: 12px;
  border: 0;
  background: var(--accent);
  color: var(--accent-ink);
  border-radius: 14px;
  padding: 14px 16px;
  font: inherit;
  font-size: 16px;
  letter-spacing: 0.06em;
  cursor: pointer;
}

.primary:disabled {
  background: #c9b8ab;
  cursor: not-allowed;
  letter-spacing: 0.04em;
}

.session { margin-top: 14px; display: grid; gap: 12px; }

.card { padding: 18px 18px 16px; }

.hold-card { background: var(--hold); }

h2 {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.hold-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
}

.bubble-wrap { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }

.bubble {
  max-width: 100%;
  background: var(--bubble);
  border-radius: 16px 16px 16px 4px;
  padding: 12px 14px;
  font-size: 15px;
  line-height: 1.6;
}

.bubble.wait {
  background: var(--bubble-wait);
  border-radius: 14px;
}

.bubble .kicker {
  display: block;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
}

.why { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.65; }

.copy {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 999px;
  padding: 6px 12px;
  font: inherit;
  font-size: 12px;
  cursor: pointer;
}

.proto {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  font-size: 12px;
  color: var(--muted);
}

.proto label { display: flex; align-items: center; gap: 6px; cursor: pointer; color: var(--ink); }

.proto-note { font-size: 11px; }

.foot {
  margin-top: 28px;
  text-align: center;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.sr {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  background: var(--ink);
  color: #fff;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 13px;
}

.composer.is-locked { opacity: 0.78; }

@media (max-width: 380px) {
  h1 { font-size: 32px; }
  .page { padding-top: 28px; }
}

.about-link { margin: 10px 0 0; font-size: 13px; }
.about-link a { color: var(--accent); text-decoration: none; }
.used-views {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.02em;
}
.about-page { padding-bottom: 80px; }
.about-page h2 {
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin: 22px 0 8px;
}
.about-page p { margin: 0 0 10px; font-size: 15px; }
.about-page ol { padding-left: 1.2em; margin: 0 0 10px; }
.back { display: inline-block; margin-top: 8px; color: var(--accent); text-decoration: none; font-size: 13px; }

#hold-text.streaming::after {
  content: "▍";
  margin-left: 2px;
  color: var(--accent);
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }