:root {
  --aicss-ink: #2d221d;
  --aicss-subtle: #7f6a58;
  --aicss-line: rgba(142, 99, 45, 0.18);
  --aicss-accent: #cc6f25;
  --aicss-accent-dark: #a95717;
  --aicss-user: #f6e3d2;
  --aicss-assistant: #ffffff;
  --aicss-shadow: 0 24px 54px rgba(74, 43, 16, 0.22);
}

.aicss-widget {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 9999;
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
}

.aicss-launcher {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px 12px 12px;
  border: 0;
  border-radius: 999px;
  background:
    radial-gradient(circle at top left, rgba(255, 212, 153, 0.78), transparent 46%),
    linear-gradient(135deg, #2a1d17 0%, #663d18 55%, #d5762a 100%);
  color: #fffaf4;
  box-shadow: var(--aicss-shadow);
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.aicss-launcher:hover,
.aicss-launcher:focus-visible {
  transform: translateY(-2px);
}

.aicss-launcher-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 247, 237, 0.18);
  font-weight: 800;
  letter-spacing: 0.05em;
}

.aicss-launcher-text {
  font-size: 15px;
  font-weight: 700;
}

.aicss-panel {
  position: absolute;
  right: 0;
  bottom: 76px;
  width: min(360px, calc(100vw - 24px));
  display: none;
  overflow: hidden;
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(255, 248, 239, 0.94) 0%, rgba(255, 253, 249, 0.96) 100%);
  border: 1px solid var(--aicss-line);
  box-shadow: var(--aicss-shadow);
  backdrop-filter: blur(12px);
}

.aicss-widget.is-open .aicss-panel {
  display: block;
  animation: aicss-panel-in 0.24s ease;
}

@keyframes aicss-panel-in {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.98);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.aicss-panel-header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  padding: 18px 18px 12px;
  background:
    radial-gradient(circle at top right, rgba(255, 184, 106, 0.35), transparent 42%),
    linear-gradient(135deg, #fff4e4 0%, #fff8f0 100%);
  border-bottom: 1px solid var(--aicss-line);
}

.aicss-kicker {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #a9652f;
}

.aicss-panel-header h2 {
  margin: 0;
  font-size: 20px;
  color: var(--aicss-ink);
}

.aicss-subtitle {
  margin: 6px 0 0;
  font-size: 13px;
  color: var(--aicss-subtle);
}

.aicss-language-switch,
.aicss-input,
.aicss-textarea {
  width: 100%;
  border: 1px solid rgba(137, 94, 39, 0.18);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.88);
  color: var(--aicss-ink);
  box-sizing: border-box;
}

.aicss-language-switch {
  min-width: 120px;
  height: 40px;
  padding: 0 12px;
}

.aicss-messages {
  display: grid;
  gap: 10px;
  max-height: 320px;
  padding: 16px 18px;
  overflow-y: auto;
}

.aicss-bubble {
  max-width: 92%;
  padding: 12px 14px;
  border-radius: 18px;
  line-height: 1.55;
  font-size: 14px;
  white-space: pre-wrap;
  word-break: break-word;
  box-shadow: 0 10px 18px rgba(72, 42, 17, 0.06);
}

.aicss-bubble-user {
  margin-left: auto;
  border-bottom-right-radius: 4px;
  background: var(--aicss-user);
}

.aicss-bubble-assistant {
  margin-right: auto;
  border-bottom-left-radius: 4px;
  background: var(--aicss-assistant);
}

.aicss-form {
  display: grid;
  gap: 12px;
  padding: 0 18px 18px;
}

.aicss-field {
  display: grid;
  gap: 7px;
}

.aicss-field-label {
  font-size: 12px;
  font-weight: 700;
  color: #8c673d;
}

.aicss-captcha-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.aicss-captcha-question {
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255, 244, 228, 0.82);
  border: 1px dashed rgba(170, 121, 69, 0.26);
  font-size: 14px;
  font-weight: 700;
  color: #6f4f2d;
}

.aicss-captcha-refresh {
  padding: 0;
  border: 0;
  background: transparent;
  color: #a55e22;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}

.aicss-input,
.aicss-textarea {
  padding: 12px 14px;
  font-size: 14px;
}

.aicss-textarea {
  resize: vertical;
  min-height: 88px;
}

.aicss-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.aicss-status {
  flex: 1 1 auto;
  min-height: 20px;
  font-size: 12px;
  color: var(--aicss-subtle);
}

.aicss-status[data-kind="error"] {
  color: #b5473d;
}

.aicss-status[data-kind="ok"] {
  color: #2d7a47;
}

.aicss-send-button {
  flex: 0 0 auto;
  padding: 12px 18px;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--aicss-accent) 0%, var(--aicss-accent-dark) 100%);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}

@media (max-width: 767px) {
  .aicss-widget {
    right: 12px;
    bottom: 12px;
  }

  .aicss-panel {
    bottom: 72px;
    width: min(360px, calc(100vw - 12px));
  }

  .aicss-launcher-text {
    display: none;
  }
}