:root {
  --bg: #0b0e14;
  --panel: #141922;
  --panel-2: #1c222d;
  --border: #29313d;
  --text: #e8ebf0;
  --muted: #8891a0;
  --accent: #5b8cff;
  --accent-2: #9b6cff;
  --ok: #38d39f;
  --danger: #ff5a67;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: radial-gradient(1200px 600px at 50% -10%, #17203a 0%, var(--bg) 55%);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", sans-serif;
}

.app {
  max-width: 720px;
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 0 20px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 4px 8px;
  gap: 12px;
}
.top-actions { display: flex; align-items: center; gap: 10px; }
.icon-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 10px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.icon-btn:hover { color: var(--text); border-color: var(--muted); }
.brand { display: flex; align-items: center; gap: 12px; }
.brand .dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--muted); transition: all 0.3s;
}
.brand .dot.connected { background: var(--ok); box-shadow: 0 0 12px var(--ok); }
.brand .dot.error { background: var(--danger); box-shadow: 0 0 12px var(--danger); }
.brand h1 { font-size: 18px; margin: 0; font-weight: 600; }
.sub { margin: 2px 0 0; font-size: 12px; color: var(--muted); }

/* provider 切换 */
.provider-switch {
  display: flex;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 3px;
  gap: 3px;
}
.prov-btn {
  background: transparent; color: var(--muted); border: none;
  padding: 7px 14px; border-radius: 8px; cursor: pointer;
  font-size: 13px; font-weight: 500; transition: all 0.15s;
}
.prov-btn:hover { color: var(--text); }
.prov-btn.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
}
.prov-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* 中央舞台 */
.stage {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  padding: 36px 0 24px;
}

/* ===== 卡通形象 ===== */
.orb.character {
  width: 340px;
  height: 320px;
  border-radius: 28px;
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at 50% 30%, #eaf1ff, #cdd9f5 80%);
  border: 3px solid rgba(91, 140, 255, 0.25);
  box-shadow: 0 12px 40px rgba(91, 140, 255, 0.2);
  transition: box-shadow 0.35s, border-color 0.35s, transform 0.35s;
}

/* 表情图叠放，默认全部隐藏，靠 data-expr 显示对应一张。
   contain + 顶部对齐：完整露出人物上半身与动作（手、相机、挥手）。 */
.orb.character .expr {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: 50% 100%;
  opacity: 0;
  transition: opacity 0.28s ease;
  pointer-events: none;
}
.orb.character[data-expr="idle"] .expr-idle,
.orb.character[data-expr="listening"] .expr-listening,
.orb.character[data-expr="speaking"] .expr-speaking,
.orb.character[data-expr="thinking"] .expr-thinking,
.orb.character[data-expr="camera"] .expr-camera { opacity: 1; }

/* 各状态的光晕 + 动效 */
.orb.character.listening {
  border-color: rgba(56, 211, 159, 0.6);
  box-shadow: 0 0 0 0 rgba(56, 211, 159, 0.4), 0 8px 30px rgba(56, 211, 159, 0.22);
  animation: char-listen 1.8s infinite;
}
.orb.character.speaking {
  border-color: rgba(91, 140, 255, 0.8);
  box-shadow: 0 0 34px 4px rgba(91, 140, 255, 0.45);
  animation: char-speak 0.6s infinite alternate;
}
.orb.character.thinking {
  border-color: rgba(155, 108, 255, 0.7);
  box-shadow: 0 0 28px 2px rgba(155, 108, 255, 0.4);
}
.orb.character.connecting {
  border-color: rgba(91, 140, 255, 0.5);
  animation: char-breathe 1.4s ease-in-out infinite;
}
/* 待机时轻微呼吸 */
.orb.character:not(.listening):not(.speaking):not(.thinking):not(.connecting) {
  animation: char-breathe 3.4s ease-in-out infinite;
}

@keyframes char-listen {
  0% { box-shadow: 0 0 0 0 rgba(56,211,159,0.4), 0 8px 30px rgba(56,211,159,0.22); }
  70% { box-shadow: 0 0 0 20px rgba(56,211,159,0), 0 8px 30px rgba(56,211,159,0.22); }
  100% { box-shadow: 0 0 0 0 rgba(56,211,159,0), 0 8px 30px rgba(56,211,159,0.22); }
}
@keyframes char-speak {
  from { transform: scale(1); }
  to { transform: scale(1.035); }
}
@keyframes char-breathe {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.02); }
}

.status {
  font-size: 14px;
  color: var(--muted);
  min-height: 20px;
}
.status.ok, .status.listening { color: var(--ok); }
.status.error { color: var(--danger); }
.status.connecting, .status.speaking { color: var(--accent); }

.connect-btn {
  border: none;
  border-radius: 26px;
  padding: 13px 34px;
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  cursor: pointer;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 6px 22px rgba(91, 140, 255, 0.35);
  transition: transform 0.12s, opacity 0.2s;
}
.connect-btn:hover { transform: translateY(-1px); }
.connect-btn:active { transform: scale(0.97); }
.connect-btn:disabled { opacity: 0.6; cursor: not-allowed; }
.connect-btn.active {
  background: linear-gradient(135deg, var(--danger), #ff8a5a);
  box-shadow: 0 6px 22px rgba(255, 90, 103, 0.3);
}

/* 转写区 */
.transcript {
  flex: 1;
  min-height: 0;
  padding-bottom: 24px;
}
.log {
  height: 100%;
  max-height: 42vh;
  overflow-y: auto;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.empty-hint { margin: auto; text-align: center; color: var(--muted); }
.tiny { font-size: 12px; color: var(--muted); }

.line { display: flex; gap: 10px; align-items: flex-start; animation: fade 0.2s ease; }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }
.line .tag {
  flex: 0 0 auto; font-size: 11px; padding: 2px 8px;
  border-radius: 10px; margin-top: 2px;
}
.line.you .tag { background: rgba(91,140,255,0.18); color: #a9c0ff; }
.line.bot .tag { background: rgba(56,211,159,0.15); color: #7fe6c4; }
.line .txt { font-size: 15px; line-height: 1.5; word-break: break-word; }

.error-banner {
  background: rgba(255,90,103,0.12); border: 1px solid var(--danger);
  color: #ffb3ba; padding: 10px 14px; border-radius: 10px; font-size: 13px;
  white-space: pre-wrap; word-break: break-word;
}

/* ===== 设置面板 ===== */
.overlay {
  position: fixed; inset: 0;
  background: rgba(4, 6, 10, 0.6);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  z-index: 50; padding: 20px;
}
.overlay.hidden { display: none; }

.panel {
  width: 100%; max-width: 460px; max-height: 88vh;
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 16px; display: flex; flex-direction: column;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
  animation: pop 0.18s ease;
}
@keyframes pop {
  from { opacity: 0; transform: translateY(10px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.panel-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 20px; border-bottom: 1px solid var(--border);
}
.panel-head h2 { margin: 0; font-size: 16px; }
.panel-body {
  padding: 18px 20px; overflow-y: auto;
  display: flex; flex-direction: column; gap: 16px;
}
.gemini-only, .doubao-only { display: flex; flex-direction: column; gap: 16px; }
.prov-hidden { display: none !important; }

.field { display: flex; flex-direction: column; gap: 6px; }
.field-label {
  font-size: 12px; color: var(--muted);
  display: flex; justify-content: space-between; align-items: center; gap: 8px;
}
.field-label b { color: var(--accent); font-weight: 600; }

.tag-gemini, .tag-both, .tag-doubao, .tag-qwen, .tag-qwebo {
  font-size: 10px; padding: 1px 6px; border-radius: 6px; font-weight: 500;
}
.tag-gemini { background: rgba(91,140,255,0.18); color: #a9c0ff; }
.tag-both { background: rgba(56,211,159,0.15); color: #7fe6c4; }
.tag-doubao { background: rgba(255,138,76,0.16); color: #ffb083; }
.tag-qwen { background: rgba(168,120,255,0.18); color: #cbb0ff; }
.tag-qwebo { background: rgba(64,199,214,0.18); color: #86e3ee; }

.field input[type="password"],
.field input[type="text"],
.field select,
.field textarea {
  background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 10px; color: var(--text); padding: 10px 12px;
  font-size: 14px; outline: none; font-family: inherit; resize: vertical;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--accent); }
.field input[type="range"] { width: 100%; accent-color: var(--accent); }

.note { font-size: 12px; color: var(--muted); margin: 0; line-height: 1.5; }

.panel-foot {
  padding: 14px 20px 18px; border-top: 1px solid var(--border);
  display: flex; justify-content: flex-end;
}
.connect-btn.small { padding: 10px 24px; font-size: 14px; }

.field-row { flex-direction: row; align-items: center; justify-content: space-between; }
.field-hint {
  display: block; font-size: 11px; color: var(--muted);
  font-weight: 400; margin-top: 3px;
}

/* 开关 checkbox */
.switch {
  appearance: none; -webkit-appearance: none;
  width: 44px; height: 26px; border-radius: 13px;
  background: var(--panel-2); border: 1px solid var(--border);
  position: relative; cursor: pointer; transition: background 0.2s; flex: 0 0 auto;
}
.switch::after {
  content: ""; position: absolute; top: 2px; left: 2px;
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--muted); transition: transform 0.2s, background 0.2s;
}
.switch:checked {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent;
}
.switch:checked::after { transform: translateX(18px); background: #fff; }

/* 截图缩略图 */
.line.snapshot { flex-direction: column; align-items: flex-start; gap: 6px; }
.snap-img { max-width: 180px; border-radius: 10px; border: 1px solid var(--border); }

/* 工具调用折叠卡片 */
.line.tool { display: block; }
.tool-card {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel-2);
  overflow: hidden;
}
.tool-head {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
  text-align: left;
}
.tool-head:hover { background: rgba(255,255,255,0.03); }
.tool-caret { flex: 0 0 auto; color: var(--muted); font-size: 10px; }
.tool-title { flex: 1 1 auto; font-weight: 600; }
.tool-state { flex: 0 0 auto; font-size: 11px; padding: 2px 8px; border-radius: 10px; }
.tool-state.running { background: rgba(91,140,255,0.18); color: #a9c0ff; }
.tool-state.ok { background: rgba(56,211,159,0.15); color: #7fe6c4; }
.tool-state.err { background: rgba(255,90,103,0.16); color: #ff9aa2; }
.tool-body { display: none; padding: 4px 12px 12px; border-top: 1px solid var(--border); }
.tool-card[data-open="1"] .tool-body { display: block; }
.tool-section { margin-top: 10px; }
.tool-label { font-size: 11px; color: var(--muted); margin-bottom: 4px; }
.tool-body pre {
  margin: 0;
  padding: 8px 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 12px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 260px;
  overflow: auto;
  color: #cdd4df;
}