.chat-page {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: #1a0710;
}

/* 深色渐变背景层：锁到视口，滚动时不移位 */
.hero-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  background:
    radial-gradient(120% 60% at 50% 0%, #3a0a1a 0%, #1a0710 55%, #0d0308 100%);
}
.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80rpx);
  opacity: 0.85;
}
.hero-blob.blob-1 {
  width: 700rpx;
  height: 700rpx;
  top: -80rpx;
  left: -120rpx;
  background: radial-gradient(circle, #c4232f 0%, rgba(196, 35, 47, 0) 70%);
}
.hero-blob.blob-2 {
  width: 620rpx;
  height: 620rpx;
  top: 220rpx;
  right: -160rpx;
  background: radial-gradient(circle, #e63946 0%, rgba(230, 57, 70, 0) 70%);
  opacity: 0.75;
}
.hero-blob.blob-3 {
  width: 800rpx;
  height: 500rpx;
  bottom: -100rpx;
  left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(circle, #7a1424 0%, rgba(122, 20, 36, 0) 70%);
  opacity: 0.7;
}
.hero-noise {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, rgba(255,255,255,0.02) 0 2rpx, transparent 2rpx 6rpx),
    repeating-linear-gradient(90deg, rgba(0,0,0,0.05) 0 2rpx, transparent 2rpx 6rpx);
  mix-blend-mode: overlay;
  pointer-events: none;
}

/* 顶部栏 */
.topbar {
  position: relative;
  z-index: 2;
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 88rpx;
  padding: 0 32rpx;
}
.brand-mini {
  font-size: 30rpx;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.92);
  letter-spacing: 2rpx;
}

/* 圆形返回按钮 */
.topbar-back {
  width: 64rpx;
  height: 64rpx;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.12);
  border: 1rpx solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10rpx);
  -webkit-backdrop-filter: blur(10rpx);
}
.topbar-back:active {
  background: rgba(255, 255, 255, 0.22);
}
.back-arrow {
  color: #fff;
  font-size: 44rpx;
  line-height: 1;
  margin-left: -4rpx;
  font-weight: 300;
}

/* 三点圆形按钮 */
.topbar-more {
  width: 64rpx;
  height: 64rpx;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6rpx;
  background: rgba(255, 255, 255, 0.12);
  border: 1rpx solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10rpx);
  -webkit-backdrop-filter: blur(10rpx);
}
.topbar-more:active {
  background: rgba(255, 255, 255, 0.22);
}
.topbar-more .dot {
  width: 8rpx;
  height: 8rpx;
  border-radius: 50%;
  background: #fff;
}

/* 消息列表 */
.messages {
  position: relative;
  z-index: 2;
  flex: 1;
  padding: 24rpx 24rpx 220rpx;
  box-sizing: border-box;
}

.msg-row {
  display: flex;
  margin-bottom: 24rpx;
}
.msg-row.user {
  justify-content: flex-end;
}
.msg-row.assistant {
  justify-content: flex-start;
}

.bubble {
  max-width: 78%;
  padding: 20rpx 24rpx;
  border-radius: 24rpx;
  font-size: 28rpx;
  line-height: 1.55;
  word-break: break-word;
  box-shadow: 0 4rpx 16rpx rgba(0, 0, 0, 0.25);
}
/* 用户气泡：品牌红 */
.bubble.user {
  background: linear-gradient(135deg, #e63946 0%, #c4232f 100%);
  color: #fff;
  border-top-right-radius: 8rpx;
}
/* 助手气泡：白色磨砂玻璃 */
.bubble.assistant {
  background: rgba(255, 255, 255, 0.92);
  color: #222;
  border-top-left-radius: 8rpx;
  border: 1rpx solid rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(10rpx);
  -webkit-backdrop-filter: blur(10rpx);
}

.txt {
  white-space: pre-wrap;
  display: block;
}

.atts {
  display: flex;
  flex-wrap: wrap;
  gap: 12rpx;
  margin-bottom: 12rpx;
}
.att-img {
  width: 180rpx;
  height: 180rpx;
  border-radius: 12rpx;
  background: rgba(0, 0, 0, 0.2);
}

.refs {
  margin-top: 20rpx;
  padding-top: 16rpx;
  border-top: 1rpx dashed rgba(230, 57, 70, 0.3);
}
.refs-title {
  font-size: 22rpx;
  color: #8a8a8a;
  margin-bottom: 10rpx;
}
.ref-item {
  display: flex;
  flex-direction: column;
  padding: 10rpx 0;
}
.ref-title {
  font-size: 24rpx;
  color: var(--brand);
  font-weight: 500;
}
.ref-snippet {
  font-size: 22rpx;
  color: #666;
  margin-top: 4rpx;
  line-height: 1.5;
}

.anchor-end {
  height: 20rpx;
}

/* 待发送图片 */
.pending-bar {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 16rpx;
  padding: 16rpx 24rpx;
  background: rgba(255, 255, 255, 0.08);
  border-top: 1rpx solid rgba(255, 255, 255, 0.15);
  overflow-x: auto;
  white-space: nowrap;
}
.pending-item {
  position: relative;
  flex: 0 0 auto;
}
.pending-img {
  width: 120rpx;
  height: 120rpx;
  border-radius: 12rpx;
  background: rgba(0, 0, 0, 0.2);
}
.pending-remove {
  position: absolute;
  top: -12rpx;
  right: -12rpx;
  width: 40rpx;
  height: 40rpx;
  line-height: 36rpx;
  text-align: center;
  background: rgba(0, 0, 0, 0.65);
  color: #fff;
  border-radius: 50%;
  font-size: 28rpx;
}

/* 录音提示 */
.recording-tip {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16rpx;
  padding: 16rpx;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 26rpx;
  border-top: 1rpx solid rgba(255, 255, 255, 0.15);
}
.recording-dot {
  width: 16rpx;
  height: 16rpx;
  border-radius: 50%;
  background: #fff;
  animation: pulse 1s infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.5; }
}

/* 底部吸底容器 */
.bottom-dock {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 5;
  padding-bottom: env(safe-area-inset-bottom);
  background: linear-gradient(
    to top,
    rgba(13, 3, 8, 0.85) 0%,
    rgba(26, 7, 16, 0.6) 60%,
    rgba(26, 7, 16, 0) 100%
  );
}

/* 底部输入区 */
.input-bar {
  display: flex;
  align-items: center;
  gap: 16rpx;
  padding: 16rpx 24rpx 24rpx;
}
.btn-icon {
  flex: 0 0 auto;
  width: 72rpx;
  height: 72rpx;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  border: 1rpx solid rgba(255, 255, 255, 0.28);
  backdrop-filter: blur(10rpx);
  -webkit-backdrop-filter: blur(10rpx);
}
.btn-icon .icon {
  font-size: 36rpx;
  color: #fff;
}
.input-text {
  flex: 1;
  height: 72rpx;
  padding: 0 28rpx;
  border-radius: 36rpx;
  font-size: 28rpx;
  box-sizing: border-box;
  background: rgba(255, 255, 255, 0.12);
  border: 1rpx solid rgba(255, 255, 255, 0.28);
  color: #fff;
  backdrop-filter: blur(10rpx);
  -webkit-backdrop-filter: blur(10rpx);
}
.input-ph {
  color: rgba(255, 255, 255, 0.55);
}
.btn-send {
  flex: 0 0 auto;
  height: 72rpx;
  line-height: 72rpx;
  padding: 0 28rpx;
  background: var(--brand);
  color: #fff;
  border-radius: 36rpx;
  font-size: 28rpx;
  width: fit-content!important;
  box-shadow: 0 4rpx 16rpx rgba(230, 57, 70, 0.4);
}
.btn-send.disabled {
  background: rgba(255, 255, 255, 0.18);
  color: rgba(255, 255, 255, 0.5);
  box-shadow: none;
}
.voice-hold {
  flex: 1;
  height: 72rpx;
  line-height: 72rpx;
  text-align: center;
  border-radius: 36rpx;
  font-size: 28rpx;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border: 1rpx solid rgba(255, 255, 255, 0.28);
  backdrop-filter: blur(10rpx);
  -webkit-backdrop-filter: blur(10rpx);
}
.voice-hold.active {
  background: var(--brand);
  color: #fff;
  border-color: var(--brand);
}