/* ═══════════════ 一起听 · 网易云红白日间模式 ═══════════════ */

.lt-shell {
  position: absolute; inset: 0; z-index: 1;
  display: flex; flex-direction: column;
  background: linear-gradient(180deg, #fdf5f5 0%, #fff5f5 30%, #fefefe 100%);
  color: #2c2c2c;
  font-family: var(--font, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif);
  animation: ltFadeIn 0.35s ease-out;
  overflow: hidden;
}
@keyframes ltFadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ─── Block 1: 导航栏 ─── */
.lt-nav {
  display: flex; align-items: center;
  padding: calc(10px + var(--sab, 0px)) 12px 6px;
  gap: 10px; flex-shrink: 0;
  background: #fff;
}
.lt-nav-back {
  width: 34px; height: 34px; border-radius: 50%;
  background: rgba(0,0,0,0.04); border: none;
  color: #333; font-size: 17px;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; transition: background 0.2s;
}
.lt-nav-back:active { background: rgba(0,0,0,0.1); }
.lt-nav-title {
  font-size: 18px; font-weight: 700; letter-spacing: 2px;
  flex: 1; text-align: center; color: #333;
}
/* 删除 ⋯ 按钮  */
.lt-nav-more { display: none; }

.lt-nav-hint {
  text-align: center; font-size: 11px; color: #999;
  letter-spacing: 1px; padding: 0 0 4px; flex-shrink: 0;
}

/* ─── 角色选择栏 ─── */
.lt-role-bar {
  flex-shrink: 0; display: flex; align-items: center; gap: 8px;
  padding: 4px 16px 6px; background: #fff;
}
.lt-role-label {
  font-size: 12px; color: #999;
  letter-spacing: 1px; white-space: nowrap;
}
.lt-role-select {
  flex: 1; height: 34px; border-radius: 12px;
  border: 1px solid #e8e8e8;
  background: #fafafa; color: #333;
  padding: 0 12px; font-size: 13px; outline: none;
}
.lt-role-select option { color: #111; }

/* ─── Block 2: 双人角色互动区 ─── */
.lt-hero {
  flex-shrink: 0; display: flex; flex-direction: column;
  align-items: center; padding: 6px 16px 0;
}
.lt-avatars-row {
  display: flex; align-items: center; justify-content: center;
  gap: 0; width: min(100%, 252px);
  margin: 0 auto;
}
.lt-avatar-wrap {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  flex: 0 0 76px;
  min-width: 0;
}
.lt-avatar-ring {
  width: 60px; height: 60px; border-radius: 50%; padding: 2px;
  background: linear-gradient(135deg, #ec4141, #e03a3a);
  box-shadow: 0 2px 12px rgba(236,65,65,0.2);
}
.lt-avatar-img {
  width: 100%; height: 100%; border-radius: 50%; object-fit: cover;
  background: #f0f0f0;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; overflow: hidden;
}
.lt-avatar-img img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }
.lt-avatar-label {
  font-size: 11px; color: #666;
  letter-spacing: 1px; max-width: 70px;
  text-align: center; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

/* ─── 心电连线 ─── */
.lt-ecg {
  display: flex; align-items: center; justify-content: center;
  width: 120px; flex-shrink: 0; position: relative;
  margin: 0 -8px;
}
.lt-ecg svg { width: 100%; height: 32px; overflow: visible; }
.lt-ecg-line {
  fill: none; stroke: rgba(236,65,65,0.55);
  stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round;
  stroke-dasharray: 280;
  stroke-dashoffset: 280;
  animation: ecgScan 2.4s ease-in-out infinite;
}
@keyframes ecgScan {
  0%   { stroke-dashoffset: 280; stroke: rgba(236,65,65,0.25); }
  12%  { stroke: rgba(236,65,65,0.85); }
  55%  { stroke-dashoffset: -20; stroke: rgba(236,65,65,0.45); }
  88%  { stroke: rgba(236,65,65,0.85); }
  100% { stroke-dashoffset: 280; stroke: rgba(236,65,65,0.25); }
}

/* ─── 角色气泡 ─── */
.lt-friend-bubble {
  background: #fef0f0; border-radius: 12px;
  padding: 6px 12px; font-size: 12px; color: #666;
  max-width: 180px; text-align: center; margin-top: 4px;
  position: relative; letter-spacing: 0.5px; line-height: 1.4;
  border: 1px solid #fce4e4;
}

/* ─── Block 3: CD唱片（缩小 + 图片铺满） ─── */
.lt-vinyl-area {
  flex-shrink: 0; display: flex; flex-direction: column;
  align-items: center; padding: 4px 0 0;
}
.lt-disc-large {
  width: min(180px, 46vw); height: min(180px, 46vw);
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, #2a2a2a 0 8%, #1a1a1a 9% 16%, #333 17% 42%, #222 43% 48%, #2a2a2a 49% 54%, #1a1a1a 55% 62%, #2d2d2d 63% 100%);
  box-shadow: 0 6px 24px rgba(0,0,0,0.15);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden; position: relative;
}
.lt-disc-large.playing {
  animation: vinylSpin 6s linear infinite;
}
@keyframes vinylSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.lt-disc-large-inner {
  position: absolute;
  width: 56%; height: 56%; border-radius: 50%;
  left: 50%; top: 50%; transform: translate(-50%, -50%);
  overflow: hidden; display: flex; align-items: center; justify-content: center;
  background: #111;
  z-index: 1;
}
.lt-disc-large-inner img {
  width: 100%; height: 100%; object-fit: cover; border-radius: 50%;
}
.lt-disc-large-icon {
  stroke: rgba(255,255,255,0.4); fill: none;
  stroke-width: 1.2; width: 36px; height: 36px;
  position: relative; z-index: 2;
}
.lt-disc-hole {
  position: absolute; width: 6px; height: 6px; border-radius: 50%;
  background: #1a1a1a; top: 50%; left: 50%; transform: translate(-50%, -50%);
  z-index: 3;
}

/* ─── 歌曲信息 ─── */
.lt-track-info {
  text-align: center; padding: 6px 20px 0; flex-shrink: 0;
}
.lt-track-name {
  font-size: 14px; font-weight: 600; color: #333;
  letter-spacing: 0.5px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.lt-track-artist {
  font-size: 11px; color: #999; margin-top: 2px;
}

/* ─── 歌词区域 ─── */
.lt-lyrics-area {
  flex-shrink: 0; text-align: center;
  padding: 4px 20px 2px;
  min-height: 46px;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 2px;
}
.lt-lyric-line {
  font-size: 13px; font-weight: 400;
  letter-spacing: 1px; line-height: 1.4;
  transition: color 0.4s;
}
.lt-lyric-current { color: #333; font-weight: 500; }
.lt-lyric-next { color: #ccc; font-size: 11px; }
.lt-lyric-empty { color: #ccc; font-size: 11px; letter-spacing: 1px; }

/* ─── Block 4: 播放控制（无 ⋯ 按钮） ─── */
.lt-music-ctrl {
  flex-shrink: 0; display: flex; align-items: center;
  justify-content: center; gap: 0; padding: 6px 14px 4px;
}
.lt-ctrl-container {
  display: flex; align-items: center; gap: 12px;
  background: #fafafa; border-radius: 22px;
  border: 1px solid #eee;
  padding: 6px 14px;
}
/* 删除 ⋯ 按钮  */
.lt-ctrl-dot { display: none; }

.lt-ctrl-btn {
  width: 32px; height: 32px; border-radius: 50%;
  border: none; background: transparent;
  color: #666; font-size: 13px;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: all 0.2s;
}
.lt-ctrl-btn:hover { color: #333; }
.lt-ctrl-btn:active { background: #f0f0f0; transform: scale(0.92); }
.lt-ctrl-btn svg { fill: currentColor; stroke: currentColor; }
.lt-ctrl-main {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, #ec4141, #e03a3a);
  color: #fff; font-size: 16px;
  box-shadow: 0 3px 12px rgba(236,65,65,0.3);
}
.lt-ctrl-main:hover { background: linear-gradient(135deg, #f04a4a, #e54444); }
.lt-ctrl-main:active { transform: scale(0.92); }

/* ─── Block 5: 聊天对话流区域 ─── */
.lt-chat {
  flex: 1; min-height: 0; overflow-y: auto;
  padding: 6px 14px 8px;
  display: flex; flex-direction: column; gap: 8px;
  -webkit-overflow-scrolling: touch;
}
.lt-chat::-webkit-scrollbar { width: 0; }
.lt-chat-empty {
  flex: 1; display: flex; align-items: center; justify-content: center;
}
.lt-chat-empty div {
  color: #ccc; font-size: 12px; letter-spacing: 2px;
}

.lt-bubble-wrap {
  display: flex; flex-direction: column; max-width: 78%;
  animation: ltBubbleIn 0.28s ease-out;
}
.lt-bubble-wrap.mine { align-self: flex-end; align-items: flex-end; }
.lt-bubble-wrap.theirs { align-self: flex-start; align-items: flex-start; }
@keyframes ltBubbleIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}
.lt-bubble-sender {
  font-size: 10px; color: #999;
  margin-bottom: 2px; padding: 0 4px; letter-spacing: 1px;
}
.lt-bubble {
  padding: 9px 13px; border-radius: 14px;
  font-size: 13px; line-height: 1.5; word-break: break-word;
}
.lt-bubble-wrap.theirs .lt-bubble {
  background: #f5f5f5; color: #333;
  border-bottom-left-radius: 4px;
}
.lt-bubble-wrap.mine .lt-bubble {
  background: linear-gradient(135deg, #ec4141, #f04a4a); color: #fff;
  border-bottom-right-radius: 4px;
}
/* 翻译气泡 */
.lt-bubble-trans {
  margin-top: 2px !important;
  padding: 4px 10px !important;
  font-size: 11px !important;
  font-style: italic;
  opacity: 0.7;
  background: #f8f8f8 !important;
  color: #888 !important;
  border-radius: 4px 12px 12px 12px !important;
  border: 1px dashed rgba(0,0,0,0.1) !important;
}
.lt-typing {
  align-self: flex-start; padding: 9px 13px;
  border-radius: 14px; border-bottom-left-radius: 4px;
  background: #f5f5f5; color: #bbb;
  font-size: 12px; letter-spacing: 2px;
}

/* ─── Block 6: 底部输入栏(自适应，不遮挡播放器) ─── */
.lt-input-bar {
  flex-shrink: 0; display: flex; align-items: center; gap: 8px;
  padding: 8px 12px calc(max(8px, env(safe-area-inset-bottom, 8px)));
  border-top: 1px solid #eee;
  background: #fff;
  z-index: 10;
}
.lt-input {
  flex: 1; height: 38px; border-radius: 19px;
  border: 1px solid #e8e8e8;
  background: #fafafa; color: #333;
  padding: 0 14px; font-size: 13px; outline: none; letter-spacing: 0.5px;
}
.lt-input::placeholder { color: #ccc; }
.lt-input:disabled { opacity: 0.45; }
.lt-send-btn {
  width: 38px; height: 38px; border-radius: 50%; border: none;
  background: linear-gradient(135deg, #ec4141, #e03a3a); color: #fff;
  font-size: 16px; cursor: pointer; display: flex;
  align-items: center; justify-content: center; flex-shrink: 0;
  transition: opacity 0.15s, transform 0.15s;
  box-shadow: 0 2px 8px rgba(236,65,65,0.25);
}
.lt-send-btn:active { opacity: 0.75; transform: scale(0.92); }
.lt-send-btn:disabled { opacity: 0.3; }

/* ─── CD 上传提示 ─── */
.lt-disc-uploadable {
  cursor: pointer; position: relative;
}
.lt-disc-uploadable::after {
  content: '点击更换封面';
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,0.4); color: rgba(255,255,255,0.8);
  font-size: 10px; letter-spacing: 1px; border-radius: 50%;
  opacity: 0; transition: opacity 0.2s;
  pointer-events: none; z-index: 5;
}
.lt-disc-uploadable:hover::after,
.lt-disc-uploadable:active::after { opacity: 1; }

/* ─── 瞬态气泡（横向排列，在头像下方，支持堆叠） ─── */
.lt-transient-bubble {
  position: absolute; top: calc(100% + 6px + var(--bubble-offset, 0px)); left: 50%;
  transform: translateX(-50%);
  background: #fff; color: #333;
  border-radius: 10px; padding: 6px 10px;
  font-size: 11px; letter-spacing: 0.5px;
  line-height: 1.4; max-width: 160px;
  text-align: center; white-space: normal;
  word-break: break-word;
  animation: ltBubblePop 3.5s ease-out forwards;
  pointer-events: auto; z-index: 5;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
  border: 1px solid #f0f0f0;
  cursor: pointer;
}
.lt-transient-bubble::after {
  content: ''; position: absolute; bottom: 100%; left: 50%;
  transform: translateX(-50%);
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-bottom: 4px solid rgba(0,0,0,0.06);
}
@keyframes ltBubblePop {
  0% { opacity: 0; transform: translateX(-50%) translateY(6px) scale(0.92); }
  15% { opacity: 1; transform: translateX(-50%) translateY(0) scale(1); }
  85% { opacity: 1; }
  100% { opacity: 0; transform: translateX(-50%) translateY(-4px); }
}

/* ─── 聊天输入弹窗 ─── */
.lt-chat-dialog-overlay {
  position: fixed; inset: 0; z-index: 10200;
  background: rgba(0,0,0,0.35);
  display: flex; align-items: flex-end; justify-content: center;
  padding-bottom: 20px;
}
.lt-chat-dialog {
  width: min(340px, 90vw); background: #fff;
  border-radius: 16px; padding: 16px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.1);
  animation: ltFadeIn 0.2s ease-out;
}
.lt-chat-dialog-input {
  width: 100%; min-height: 56px; max-height: 110px;
  background: #fafafa; border: 1px solid #e8e8e8;
  border-radius: 10px; color: #333;
  padding: 10px 14px; font-size: 13px; resize: none;
  outline: none; font-family: inherit; letter-spacing: 0.5px;
  line-height: 1.5;
}
.lt-chat-dialog-input::placeholder { color: #ccc; }
.lt-chat-dialog-actions {
  display: flex; gap: 8px; margin-top: 10px; justify-content: flex-end;
}
.lt-dialog-btn {
  padding: 8px 18px; border-radius: 14px; border: none;
  font-size: 12px; cursor: pointer; letter-spacing: 1px;
  transition: opacity 0.15s;
}
.lt-dialog-btn:active { opacity: 0.7; }
.lt-dialog-cancel { background: #f0f0f0; color: #666; }
.lt-dialog-send { background: linear-gradient(135deg, #ec4141, #e03a3a); color: #fff; }

/* ─── 角色选择弹窗 ─── */
.lt-char-pick-overlay {
  position: fixed; inset: 0; z-index: 10100;
  background: rgba(0,0,0,0.5);
  display: flex; align-items: center; justify-content: center;
  animation: ltFadeIn 0.25s ease-out;
}
.lt-char-pick-card {
  width: min(320px, 86vw); background: #fff;
  border-radius: 18px; padding: 24px 18px 18px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.15);
}
.lt-char-pick-title {
  text-align: center; font-size: 16px; font-weight: 600;
  margin-bottom: 16px; letter-spacing: 1px; color: #333;
}
.lt-char-pick-list {
  display: flex; flex-direction: column; gap: 6px;
  max-height: 50vh; overflow-y: auto;
}
.lt-char-pick-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px; border-radius: 12px;
  background: #fafafa; cursor: pointer;
  transition: background 0.15s;
}
.lt-char-pick-item:active { background: #f0f0f0; }
.lt-char-pick-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: #f0f0f0;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; overflow: hidden;
}
.lt-char-pick-avatar img {
  width: 100%; height: 100%; object-fit: cover; border-radius: 50%;
}
.lt-char-pick-name { font-size: 14px; color: #333; }
.lt-char-pick-cancel {
  display: block; margin: 12px auto 0; padding: 8px 24px;
  border-radius: 14px; border: 1px solid #e0e0e0;
  background: transparent; color: #999;
  font-size: 12px; cursor: pointer;
}

/* ─── 横屏模式：左侧CD+控制，右侧聊天 ─── */
@media (orientation: landscape) and (max-height: 500px) {
  .lt-shell {
    flex-direction: row;
    flex-wrap: wrap;
  }
  .lt-nav, .lt-role-bar, .lt-nav-hint {
    width: 100%;
    flex-basis: 100%;
  }
  .lt-hero {
    flex: 0 0 40%;
    max-width: 40%;
    overflow-y: auto;
  }
  .lt-vinyl-area {
    flex: 0 0 40%;
    max-width: 40%;
    padding: 2px 0;
  }
  .lt-disc-large {
    width: min(120px, 32vw);
    height: min(120px, 32vw);
  }
  .lt-lyrics-area {
    flex: 0 0 40%;
    max-width: 40%;
    min-height: 30px;
  }
  .lt-track-info {
    flex: 0 0 40%;
    max-width: 40%;
  }
  .lt-music-ctrl {
    flex: 0 0 40%;
    max-width: 40%;
  }
  .lt-chat {
    flex: 1 1 55%;
    max-width: 55%;
    border-left: 1px solid #eee;
    padding-left: 8px;
  }
  .lt-input-bar {
    width: 100%;
  }
}
/* ─── 暗色模式适配 ─── */
@media (prefers-color-scheme: light) {
  .lt-shell { background: linear-gradient(180deg, #fdf5f5 0%, #fff5f5 30%, #fefefe 100%); }
}