/* ── P2P 页面样式 ── */

/* 无后端提示 */
.p2p-unavailable {
  text-align: center;
  padding: 80px 20px;
  max-width: 500px;
  margin: 0 auto;
}
.p2p-unavailable h2 { font-size: 24px; margin-bottom: 12px; color: var(--theme-color, #399FFF); }
.p2p-unavailable p  { font-size: 15px; color: #666; line-height: 1.7; }
.p2p-unavailable a  { color: var(--theme-color, #399FFF); text-decoration: none; font-weight: 600; }
.p2p-unavailable a:hover { text-decoration: underline; }

/* ── 主布局 ── */
.p2p-layout {
  display: flex;
  gap: 0;
  height: calc(100vh - 80px);
  max-height: calc(100vh - 80px);
  margin: -20px -20px 0;
  overflow: hidden;
}
[data-theme="dark"] .p2p-layout { background: #1a1b2e; }

/* 侧栏 */
.p2p-sidebar {
  width: 220px;
  flex-shrink: 0;
  background: rgba(245,247,250,0.7);
  border-right: 1px solid rgba(0,0,0,0.06);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
[data-theme="dark"] .p2p-sidebar {
  background: rgba(26,27,46,0.95);
  border-right-color: rgba(255,255,255,0.06);
}

.p2p-sidebar-header {
  padding: 16px;
  border-bottom: 1px solid rgba(0,0,0,0.06);
  font-size: 14px;
  font-weight: 700;
  color: var(--theme-color, #399FFF);
  display: flex;
  align-items: center;
  gap: 8px;
}
[data-theme="dark"] .p2p-sidebar-header {
  border-bottom-color: rgba(255,255,255,0.06);
}

.p2p-peer-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}
.p2p-peer-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 14px;
  color: #333;
  margin-bottom: 2px;
  transition: background 0.15s;
}
[data-theme="dark"] .p2p-peer-item { color: #c8c8d8; }
.p2p-peer-item:hover { background: rgba(var(--theme-color-rgb,57,159,255),0.08); }
.p2p-peer-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #4CAF50; flex-shrink: 0;
}
.p2p-peer-dot.self { background: var(--theme-color, #399FFF); }
.p2p-peer-dot.connecting {
  background: #FFA726;
  animation: p2p-pulse 1.2s ease-in-out infinite;
}
@keyframes p2p-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.p2p-sidebar-status {
  padding: 16px;
  text-align: center;
  color: #999;
  font-size: 13px;
}
.p2p-peer-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.p2p-peer-badge { font-size: 11px; color: #999; }
[data-theme="dark"] .p2p-peer-badge { color: #666; }

.p2p-sidebar-footer {
  padding: 12px 16px;
  border-top: 1px solid rgba(0,0,0,0.06);
  font-size: 12px;
  color: #999;
  text-align: center;
}
[data-theme="dark"] .p2p-sidebar-footer {
  border-top-color: rgba(255,255,255,0.06);
  color: #666;
}

/* 主区域 */
.p2p-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: rgba(255,255,255,0.5);
}
[data-theme="dark"] .p2p-main { background: rgba(26,27,46,0.5); }

/* ── 顶部房间栏 ── */
.p2p-topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border-bottom: 1px solid rgba(0,0,0,0.06);
  flex-wrap: wrap;
  background: rgba(255,255,255,0.8);
}
[data-theme="dark"] .p2p-topbar {
  background: rgba(26,27,46,0.8);
  border-bottom-color: rgba(255,255,255,0.06);
}
.p2p-topbar label {
  font-size: 13px;
  font-weight: 600;
  color: #555;
  white-space: nowrap;
}
[data-theme="dark"] .p2p-topbar label { color: #888; }
.p2p-topbar input {
  flex: 1;
  min-width: 100px;
  max-width: 200px;
  padding: 6px 10px;
  border: 1px solid rgba(0,0,0,0.12);
  border-radius: 6px;
  font-size: 13px;
  background: rgba(255,255,255,0.8);
  color: #333;
  outline: none;
  transition: border-color 0.2s;
}
[data-theme="dark"] .p2p-topbar input {
  background: rgba(40,42,65,0.8);
  border-color: rgba(255,255,255,0.1);
  color: #ddd;
}
.p2p-topbar input:focus {
  border-color: var(--theme-color, #399FFF);
}
.p2p-btn {
  padding: 6px 16px;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  background: var(--theme-color, #399FFF);
  color: #fff;
  transition: opacity 0.2s, transform 0.1s;
  white-space: nowrap;
}
.p2p-btn:hover { opacity: 0.85; }
.p2p-btn:active { transform: scale(0.97); }
.p2p-btn.outline {
  background: transparent;
  color: var(--theme-color, #399FFF);
  border: 1px solid var(--theme-color, #399FFF);
}
.p2p-btn.danger {
  background: #e74c3c;
}
.p2p-btn.danger:hover {
  background: #c0392b;
}
.p2p-btn.warning {
  background: #e67e22;
}
.p2p-btn.warning:hover {
  background: #d35400;
}
.p2p-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ── 中转模式标识 ── */
.p2p-relay-badge {
  font-size: 11px;
  color: #e67e22;
  background: rgba(230,126,34,0.1);
  padding: 2px 8px;
  border-radius: 4px;
  white-space: nowrap;
  font-weight: 600;
  margin-left: auto;
}
[data-theme="dark"] .p2p-relay-badge {
  background: rgba(230,126,34,0.2);
}

/* ── 消息区域 ── */
.p2p-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.p2p-msg {
  padding: 8px 14px;
  border-radius: 12px;
  max-width: 70%;
  word-break: break-word;
  font-size: 14px;
  line-height: 1.5;
  animation: msgIn 0.2s ease;
}
@keyframes msgIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.p2p-msg.self {
  align-self: flex-end;
  background: var(--theme-color, #399FFF);
  color: #fff;
  border-bottom-right-radius: 4px;
}
.p2p-msg.other {
  align-self: flex-start;
  background: rgba(0,0,0,0.06);
  color: #333;
  border-bottom-left-radius: 4px;
}
[data-theme="dark"] .p2p-msg.other {
  background: rgba(255,255,255,0.08);
  color: #ddd;
}
.p2p-msg .p2p-msg-from {
  font-size: 11px;
  opacity: 0.7;
  margin-bottom: 2px;
}
.p2p-msg .p2p-msg-file {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}
.p2p-msg .p2p-msg-file:hover { text-decoration: underline; }
.p2p-msg .p2p-msg-file svg { width: 20px; height: 20px; flex-shrink: 0; }
.p2p-msg img.p2p-msg-image {
  max-width: 100%;
  border-radius: 8px;
  cursor: pointer;
}

/* ── 文件卡片 ── */
.p2p-file-card {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 10px;
  max-width: 280px;
  background: rgba(0,0,0,0.04);
  border: 1px solid rgba(0,0,0,0.06);
  animation: msgIn 0.2s ease;
  position: relative;
  flex-wrap: wrap;
}
[data-theme="dark"] .p2p-file-card {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.08);
}
.p2p-file-card.self {
  align-self: flex-end;
  background: rgba(var(--theme-color-rgb,57,159,255),0.08);
  border-color: rgba(var(--theme-color-rgb,57,159,255),0.15);
}
.p2p-file-card.other {
  align-self: flex-start;
}
.p2p-file-card .p2p-msg-from {
  position: absolute;
  top: -18px;
  left: 0;
  font-size: 11px;
  opacity: 0.7;
  white-space: nowrap;
}
.p2p-file-card-icon {
  font-size: 24px;
  flex-shrink: 0;
}
.p2p-file-card-body {
  flex: 1;
  min-width: 0;
}
.p2p-file-card-name {
  font-size: 13px;
  font-weight: 500;
  color: #333;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
[data-theme="dark"] .p2p-file-card-name { color: #ddd; }
.p2p-file-card-size {
  font-size: 11px;
  color: #8e8e93;
  margin-top: 1px;
}
.p2p-file-card-status {
  font-size: 11px;
  color: #e67e22;
  margin-top: 2px;
}
.p2p-file-card-status::after {
  content: '';
  display: inline-block;
  width: 8px;
  margin-left: 4px;
  animation: p2p-status-blink 0.8s ease-in-out infinite;
}
.p2p-file-dl-progress {
  height: 4px;
  background: rgba(var(--theme-color-rgb,57,159,255),0.15);
  border-radius: 2px;
  overflow: hidden;
  margin: 4px 0 2px;
}
.p2p-file-dl-fill {
  height: 100%;
  background: var(--theme-color, #399FFF);
  border-radius: 2px;
  transition: width 0.2s ease;
}

.p2p-file-card-dl {
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 8px;
  background: rgba(var(--theme-color-rgb,57,159,255),0.1);
  color: var(--theme-color, #399FFF);
  font-size: 16px;
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
}
.p2p-file-card-dl:hover {
  background: rgba(var(--theme-color-rgb,57,159,255),0.2);
}
.p2p-file-card-image {
  width: 100%;
  flex: 0 0 100%;
  text-align: center;
}
.p2p-file-card-image img {
  max-width: 100%;
  max-height: 200px;
  border-radius: 6px;
  cursor: pointer;
  display: inline-block;
  object-fit: contain;
}
.p2p-file-card-image-name {
  font-size: 11px;
  color: #8e8e93;
  margin-top: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.p2p-msg .p2p-msg-time {
  font-size: 10px;
  color: #aaa;
  margin-top: 4px;
  text-align: right;
}
.p2p-file-card .p2p-msg-time {
  font-size: 10px;
  color: #aaa;
  margin-top: 4px;
  margin-left: auto;
}

.p2p-system-msg {
  text-align: center;
  font-size: 12px;
  color: #999;
  padding: 4px 0;
}
[data-theme="dark"] .p2p-system-msg { color: #666; }

.p2p-empty-chat {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #bbb;
  font-size: 14px;
  gap: 8px;
}
[data-theme="dark"] .p2p-empty-chat { color: #555; }
.p2p-empty-chat svg { width: 48px; height: 48px; opacity: 0.4; }

/* ── 输入区域 ── */
.p2p-input {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-top: 1px solid rgba(0,0,0,0.06);
  background: rgba(255,255,255,0.8);
}
[data-theme="dark"] .p2p-input {
  background: rgba(26,27,46,0.8);
  border-top-color: rgba(255,255,255,0.06);
}
.p2p-input textarea {
  flex: 1;
  border: 1px solid rgba(0,0,0,0.12);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 14px;
  resize: none;
  height: 36px;
  line-height: 20px;
  outline: none;
  background: rgba(255,255,255,0.8);
  color: #333;
  transition: border-color 0.2s, height 0.2s;
  font-family: inherit;
}
[data-theme="dark"] .p2p-input textarea {
  background: rgba(40,42,65,0.8);
  border-color: rgba(255,255,255,0.1);
  color: #ddd;
}
.p2p-input textarea:focus {
  border-color: var(--theme-color, #399FFF);
  height: 60px;
}
.p2p-input-actions {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}
.p2p-icon-btn {
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: #666;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, color 0.15s;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}
[data-theme="dark"] .p2p-icon-btn { color: #888; }
.p2p-icon-btn:hover {
  background: rgba(var(--theme-color-rgb,57,159,255),0.1);
  color: var(--theme-color, #399FFF);
}
.p2p-icon-btn svg { width: 20px; height: 20px; }
.p2p-icon-btn input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

/* ── 屏幕共享视频 ── */
.p2p-screen-container {
  display: none;
  position: fixed;
  bottom: 20px;
  right: 20px;
  /* 窄屏时跟着视口缩，原来的固定 320px 在 320px 宽的手机上会横向溢出 */
  width: min(320px, calc(100vw - 32px));
  background: #000;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
  z-index: 100;
  transition: width 0.2s;
}
.p2p-screen-container.visible { display: block; }
.p2p-screen-video-wrap {
  width: 100%;
  overflow: hidden;
  max-height: 70vh;
}
.p2p-screen-container video {
  width: 100%;
  display: block;
  transition: transform 0.15s;
}
.p2p-screen-label {
  position: absolute;
  top: 8px;
  left: 8px;
  background: rgba(0,0,0,0.6);
  color: #fff;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
  z-index: 2;
  touch-action: none; /* 允许移动端触摸拖动，避免页面滚动 */
  user-select: none;
  -webkit-user-select: none;
}

/* 屏幕共享缩放控件 */
.p2p-screen-controls {
  position: absolute;
  top: 8px;
  right: 8px;
  display: flex;
  gap: 3px;
  align-items: center;
  opacity: 0;
  transition: opacity 0.2s;
  z-index: 2;
}
.p2p-screen-container:hover .p2p-screen-controls {
  opacity: 1;
}
.p2p-screen-zoom-btn {
  width: 26px;
  height: 26px;
  border: none;
  border-radius: 4px;
  background: rgba(0,0,0,0.55);
  color: #fff;
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  padding: 0;
}
.p2p-screen-zoom-btn:hover {
  background: rgba(0,0,0,0.8);
}
.p2p-screen-zoom-level {
  color: #fff;
  font-size: 11px;
  min-width: 30px;
  text-align: center;
  font-variant-numeric: tabular-nums;
  background: rgba(0,0,0,0.4);
  padding: 2px 4px;
  border-radius: 3px;
}

/* 用户名输入 */
.p2p-sidebar-user {
  padding: 8px 12px;
  border-top: 1px solid rgba(0,0,0,0.06);
  flex-shrink: 0;
}
[data-theme="dark"] .p2p-sidebar-user {
  border-top-color: rgba(255,255,255,0.06);
}
.p2p-sidebar-user label {
  display: block;
  font-size: 11px;
  color: #999;
  margin-bottom: 3px;
}
[data-theme="dark"] .p2p-sidebar-user label { color: #666; }
.p2p-sidebar-user input {
  width: 100%;
  padding: 5px 8px;
  border: 1px solid rgba(0,0,0,0.12);
  border-radius: 6px;
  font-size: 13px;
  background: rgba(255,255,255,0.8);
  color: #333;
  outline: none;
  box-sizing: border-box;
  transition: border-color 0.2s;
}
[data-theme="dark"] .p2p-sidebar-user input {
  background: rgba(40,42,65,0.8);
  border-color: rgba(255,255,255,0.1);
  color: #ddd;
}
.p2p-sidebar-user input:focus {
  border-color: var(--theme-color, #399FFF);
}

/* ── 进度指示 ── */
.p2p-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 200px;
  color: #999;
  font-size: 14px;
}
.p2p-spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(var(--theme-color-rgb,57,159,255),0.2);
  border-top-color: var(--theme-color, #399FFF);
  border-radius: 50%;
  animation: p2p-spin 0.6s linear infinite;
  margin-right: 10px;
}
@keyframes p2p-spin { to { transform: rotate(360deg); } }

/* ── 文件上传进度条 ── */
.p2p-file-progress {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  margin: 6px 0 0;
}
[data-theme="dark"] .p2p-file-progress { background: rgba(26,27,46,0.3); }

.p2p-file-progress-name {
  font-size: 12px;
  color: #555;
  min-width: 80px;
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex-shrink: 0;
}
[data-theme="dark"] .p2p-file-progress-name { color: #aaa; }

.p2p-file-progress-track {
  flex: 1;
  height: 6px;
  background: rgba(var(--theme-color-rgb,57,159,255),0.12);
  border-radius: 3px;
  overflow: hidden;
  min-width: 60px;
}
.p2p-file-progress-fill {
  height: 100%;
  background: var(--theme-color, #399FFF);
  border-radius: 3px;
  transition: width 0.3s;
}
.p2p-file-progress-text {
  font-size: 12px;
  color: #8e8e93;
  min-width: 36px;
  text-align: right;
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}
.p2p-file-cancel {
  width: 22px;
  height: 22px;
  border: none;
  border-radius: 50%;
  background: rgba(255,59,48,0.08);
  color: #ff3b30;
  font-size: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 0;
  line-height: 1;
  transition: background 0.15s;
}
.p2p-file-cancel:hover {
  background: rgba(255,59,48,0.2);
}

/* ── 消息发送状态 ── */
.p2p-msg-status {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  font-size: 11px;
  margin-left: 4px;
  vertical-align: middle;
}
.p2p-msg-status.sending {
  color: #8e8e93;
}
.p2p-msg-status.sending::after {
  content: '⋯';
  animation: p2p-status-blink 0.8s ease-in-out infinite;
}
.p2p-msg-status.sent {
  color: #34c759;
}
.p2p-msg-status.failed {
  color: #ff3b30;
}
.p2p-msg-status.failed::after {
  content: '✗';
}
@keyframes p2p-status-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ── 中转用量条 ── */
.p2p-relay-usage {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: #8e8e93;
  margin-left: auto;
}
.p2p-relay-usage-track {
  width: 60px;
  height: 4px;
  background: rgba(230,126,34,0.15);
  border-radius: 2px;
  overflow: hidden;
}
.p2p-relay-usage-fill {
  height: 100%;
  background: #e67e22;
  border-radius: 2px;
  transition: width 0.5s;
}
.p2p-relay-usage-text {
  white-space: nowrap;
}

/* ── 最小化警告 ── */
.p2p-minimize-warn {
  font-size: 11px;
  color: #ff9500;
  background: rgba(255,149,0,0.08);
  padding: 2px 8px;
  border-radius: 4px;
  white-space: nowrap;
  font-weight: 500;
  margin-left: auto;
  cursor: default;
}
[data-theme="dark"] .p2p-minimize-warn {
  background: rgba(255,149,0,0.12);
}

/* ── 房间 ID 文本显示 ── */
.p2p-room-id-display {
  font-size: 13px;
  font-weight: 600;
  color: var(--theme-color, #399FFF);
  padding: 4px 0;
  white-space: nowrap;
}

/* ── 剩余流量右上角显示 ── */
.p2p-relay-remaining {
  font-size: 11px;
  color: #e67e22;
  background: rgba(230,126,34,0.08);
  padding: 3px 10px;
  border-radius: 4px;
  white-space: nowrap;
  font-weight: 500;
}
[data-theme="dark"] .p2p-relay-remaining {
  background: rgba(230,126,34,0.12);
}
.p2p-relay-remaining strong {
  font-weight: 700;
}

/* ── 响应式 / 移动端适配 ── */
@media (max-width: 768px) {
  .p2p-layout {
    flex-direction: column-reverse;
    /* 老浏览器不支持 dvh 时回退 100vh */
    /* navbar.js 给 body 强加 padding-top:80px，高度必须减去 80px，
       否则布局底部超出视口 20px，输入框被截、发送按钮贴边 */
    height: calc(100vh - 80px);
    max-height: calc(100vh - 80px);
    height: calc(100dvh - 80px);
    max-height: calc(100dvh - 80px);
    /* 容器 padding 此时为 8px（style.css ≤768px），负 margin 需与之匹配 */
    margin: -8px -8px 0;
  }
  .p2p-sidebar {
    width: 100%;
    flex-direction: row;
    height: auto;
    max-height: 120px;
    border-right: none;
    border-top: 1px solid rgba(0,0,0,0.06);
    flex-shrink: 0;
  }
  [data-theme="dark"] .p2p-sidebar {
    border-top-color: rgba(255,255,255,0.06);
  }
  .p2p-sidebar-header { padding: 8px 12px; font-size: 12px; }
  .p2p-peer-list {
    display: flex;
    flex-wrap: wrap;
    gap: 2px;
    padding: 4px 8px;
    overflow-y: auto;
    align-content: flex-start;
  }
  .p2p-peer-item { padding: 4px 8px; font-size: 12px; gap: 4px; white-space: nowrap; }
  .p2p-peer-name { max-width: 80px; }
  .p2p-sidebar-footer { display: none; }
  .p2p-sidebar-user { display: none; }
  .p2p-sidebar-status { padding: 8px; font-size: 11px; }
  .p2p-main { flex: 1; min-height: 0; }
  /* 顶栏：一行横向滚动，避免按钮换行堆叠 */
  .p2p-topbar { padding: 8px 10px; gap: 8px; flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
  .p2p-topbar::-webkit-scrollbar { display: none; }
  .p2p-topbar label { font-size: 12px; }
  .p2p-topbar input { max-width: 110px; min-width: 60px; font-size: 12px; padding: 4px 8px; flex: 0 1 auto; }
  .p2p-btn { font-size: 12px; padding: 4px 10px; flex-shrink: 0; }
  .p2p-icon-btn { flex-shrink: 0; }
  .p2p-relay-badge { font-size: 10px; padding: 1px 6px; }
  .p2p-minimize-warn { font-size: 10px; padding: 1px 6px; }
  .p2p-messages { padding: 10px 12px; }
  .p2p-msg { font-size: 13px; padding: 6px 10px; max-width: 85%; }
  .p2p-system-msg { font-size: 11px; }
  .p2p-empty-chat svg { width: 36px; height: 36px; }
  .p2p-empty-chat span { font-size: 12px; }
  .p2p-input { padding: 8px 10px; }
  .p2p-input textarea { font-size: 13px; height: 32px; }
  .p2p-icon-btn { width: 32px; height: 32px; }
  .p2p-icon-btn svg { width: 18px; height: 18px; }
  .p2p-detect-wrap { padding: 32px 14px 20px; }
  .p2p-detect-header { margin-bottom: 24px; }
  .p2p-detect-title { font-size: 18px; }
  .p2p-detect-item { padding: 12px 14px; gap: 10px; }
  .p2p-detect-label { font-size: 13px; }
  .p2p-detect-detail { font-size: 11px; max-height: 120px; }
  .p2p-detect-capabilities { gap: 4px; }
  .p2p-capability-badge { font-size: 10px; padding: 2px 6px; }
  .p2p-intro-wrap { padding: 24px 14px; }
  .p2p-intro-card { padding: 24px 16px; }
  .p2p-intro-title { font-size: 20px; }
  .p2p-intro-feature { padding: 10px 12px; }
  .p2p-intro-feature-icon { width: 28px; height: 28px; }
  .p2p-intro-feature-icon svg { width: 16px; height: 16px; }
  .p2p-intro-feature-body h4 { font-size: 13px; }
  .p2p-intro-feature-body p { font-size: 11px; }
  .p2p-settings-wrap { padding: 24px 14px; }
  .p2p-settings-title { font-size: 18px; }
  .p2p-settings-section { padding: 14px; }
  .p2p-screen-container { width: 200px; bottom: 10px; right: 10px; }
  .p2p-screen-controls { opacity: 1; }
  .p2p-screen-zoom-btn { width: 22px; height: 22px; font-size: 13px; }
  .p2p-file-progress { padding: 6px 12px; }
  .p2p-file-progress-name { max-width: 80px; font-size: 11px; }
  .p2p-intro-wrap { min-height: calc(100vh - 60px); min-height: calc(100dvh - 60px); padding: 16px 12px; justify-content: flex-start; }
  .p2p-detect-wrap { min-height: calc(100vh - 60px); min-height: calc(100dvh - 60px); padding: 24px 12px 16px; }
  .p2p-settings-wrap { min-height: calc(100vh - 60px); min-height: calc(100dvh - 60px); padding: 24px 12px 16px; }
  /* 抵消容器 8px 内边距，页面横向铺满（!important 压过文件后部的桌面 margin: 0 auto） */
  .p2p-intro-wrap, .p2p-detect-wrap, .p2p-settings-wrap { margin: 0 -8px !important; }
  .p2p-intro-card { padding: 20px 14px; }
  .p2p-intro-features { grid-template-columns: 1fr; }
  .p2p-settings-room-types { grid-template-columns: 1fr; }
  .p2p-detect-progress { margin-bottom: 16px; }
}

/* 防止页面切换时闪烁跳动 */
#app {
  min-height: 0;
  will-change: contents;
}

/* ── 环境检测页面 ── */

.p2p-detect-wrap {
  max-width: 560px;
  margin: 0 auto;
  padding: 64px 20px 32px;
  min-height: calc(100vh - 120px);
  display: flex;
  flex-direction: column;
}

/* 头部 */
.p2p-detect-header {
  text-align: center;
  margin-bottom: 36px;
}

.p2p-detect-header-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  border-radius: 12px;
  background: rgba(57, 159, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--theme-color, #399FFF);
}

.p2p-detect-title {
  font-size: 20px;
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 4px;
  letter-spacing: -0.2px;
}
[data-theme="dark"] .p2p-detect-title { color: #e0e0e0; }

.p2p-detect-subtitle {
  font-size: 14px;
  color: #8e8e93;
  line-height: 1.5;
}

/* 步骤卡片 */
.p2p-detect-item {
  background: #fff;
  border: 1px solid #e5e5ea;
  border-radius: 10px;
  padding: 16px 18px;
  margin-bottom: 10px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: border-color 1.2s ease, opacity 0.25s;
}
[data-theme="dark"] .p2p-detect-item {
  background: #1c1c1e;
  border-color: #2c2c2e;
}

.p2p-detect-item.pending { opacity: 0.45; }
.p2p-detect-item.running { border-color: var(--theme-color, #399FFF); }
.p2p-detect-item.pass   { border-color: #34c759; }
.p2p-detect-item.fail   { border-color: #ff3b30; }

/* 通过项自动收起 */
.p2p-detect-collapsed .p2p-detect-desc,
.p2p-detect-collapsed .p2p-detect-detail,
.p2p-detect-collapsed .p2p-detect-bar-wrap,
.p2p-detect-collapsed .p2p-detect-troubleshoot,
.p2p-detect-collapsed .p2p-detect-troubleshoot ~ * { display: none; }
.p2p-detect-collapsed.p2p-detect-expanded .p2p-detect-desc,
.p2p-detect-collapsed.p2p-detect-expanded .p2p-detect-detail,
.p2p-detect-collapsed.p2p-detect-expanded .p2p-detect-bar-wrap { display: block; }
.p2p-detect-collapsed.p2p-detect-expanded .p2p-detect-troubleshoot { display: block; }
.p2p-detect-collapsed.p2p-detect-expanded .p2p-detect-body { display: block; }
.p2p-detect-collapsed.p2p-detect-expanded .p2p-detect-label { margin-bottom: 1px; }
.p2p-detect-collapsed .p2p-detect-body { display: flex; align-items: center; gap: 8px; flex: 1; }
.p2p-detect-collapsed.p2p-detect-expanded .p2p-detect-label { margin-bottom: 1px; }
.p2p-detect-collapsed .p2p-detect-icon { flex-shrink: 0; }
.p2p-detect-collapsed .p2p-detect-body::after {
  content: '';
  width: 14px; height: 14px;
  margin-left: auto;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23999' stroke-width='2' stroke-linecap='round'%3E%3Cpolyline points='9 18 15 12 9 6'/%3E%3C/svg%3E") center/contain no-repeat;
  opacity: 0.4;
  transition: transform 0.2s;
  flex-shrink: 0;
}
.p2p-detect-collapsed.p2p-detect-expanded .p2p-detect-body::after {
  transform: rotate(90deg);
  opacity: 0.6;
}

/* 步骤图标容器 */
.p2p-detect-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  margin-top: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.p2p-detect-icon svg {
  width: 22px;
  height: 22px;
  transition: opacity 0.25s;
}

.p2p-detect-icon svg.icon-pending { opacity: 0.3; }
.p2p-detect-icon svg.icon-running { opacity: 0; }
.p2p-detect-item.running .p2p-detect-icon svg.icon-running { opacity: 1; }

/* spin animation only for running state indicator */
@keyframes detect-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.p2p-detect-item.running .p2p-detect-icon svg.icon-running {
  animation: detect-spin 1s linear infinite;
}

.p2p-detect-item.pass .p2p-detect-icon svg.icon-pending,
.p2p-detect-item.pass .p2p-detect-icon svg.icon-running { display: none; }
.p2p-detect-item.fail .p2p-detect-icon svg.icon-pending,
.p2p-detect-item.fail .p2p-detect-icon svg.icon-running { display: none; }

/* 步骤内容 */
.p2p-detect-body {
  flex: 1;
  min-width: 0;
}

.p2p-detect-label {
  font-size: 14px;
  font-weight: 500;
  color: #1a1a1a;
  margin-bottom: 1px;
  display: flex;
  align-items: center;
  gap: 8px;
}
[data-theme="dark"] .p2p-detect-label { color: #e0e0e0; }

.p2p-detect-label-status {
  font-size: 12px;
  font-weight: 400;
  color: #8e8e93;
}
.p2p-detect-item.pass .p2p-detect-label-status { color: #34c759; }
.p2p-detect-item.fail .p2p-detect-label-status { color: #ff3b30; }
.p2p-detect-item.running .p2p-detect-label-status { color: var(--theme-color, #399FFF); }

.p2p-detect-desc {
  font-size: 13px;
  color: #8e8e93;
  line-height: 1.4;
}

/* 详细日志 */
.p2p-detect-detail {
  font-size: 12px;
  color: #636366;
  margin-top: 10px;
  padding: 10px 12px;
  background: #f2f2f7;
  border-radius: 8px;
  line-height: 1.6;
  white-space: pre-wrap;
  font-family: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
  max-height: 180px;
  overflow-y: auto;
}
[data-theme="dark"] .p2p-detect-detail {
  background: #2c2c2e;
  color: #98989d;
}

/* 进度指示器（细线） */
.p2p-detect-progress {
  margin: -4px auto 28px;
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
}

.p2p-detect-progress-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #d1d1d6;
  transition: background 0.3s;
}
.p2p-detect-progress-dot.active { background: var(--theme-color, #399FFF); }
.p2p-detect-progress-dot.done { background: #34c759; }

.p2p-detect-progress-line {
  width: 32px;
  height: 1px;
  background: #d1d1d6;
  transition: background 0.3s;
}
.p2p-detect-progress-line.done { background: #34c759; }
[data-theme="dark"] .p2p-detect-progress-dot { background: #3a3a3c; }
[data-theme="dark"] .p2p-detect-progress-line { background: #3a3a3c; }

/* 故障排查 */
.p2p-detect-troubleshoot {
  margin-top: 10px;
  padding: 12px 14px;
  background: #f2f2f7;
  border-radius: 8px;
  border-left: 3px solid #ff3b30;
}
[data-theme="dark"] .p2p-detect-troubleshoot {
  background: #2c2c2e;
}
.p2p-detect-troubleshoot h4 {
  font-size: 13px;
  font-weight: 600;
  color: #ff3b30;
  margin: 0 0 6px;
}
.p2p-detect-troubleshoot p {
  font-size: 12px;
  color: #636366;
  margin: 0 0 4px;
  line-height: 1.5;
}
.p2p-detect-troubleshoot ul {
  margin: 4px 0 0;
  padding-left: 16px;
  font-size: 12px;
  color: #636366;
  line-height: 1.7;
}
[data-theme="dark"] .p2p-detect-troubleshoot p,
[data-theme="dark"] .p2p-detect-troubleshoot ul { color: #98989d; }
.p2p-detect-troubleshoot li { margin-bottom: 1px; }

/* 总结 */
.p2p-detect-summary {
  text-align: center;
  padding: 16px;
  margin-top: 6px;
  border-radius: 8px;
  font-size: 14px;
  line-height: 1.5;
  font-weight: 500;
}
.p2p-detect-summary.pass {
  color: #34c759;
  background: #f2f2f7;
}
.p2p-detect-summary.fail {
  color: #ff3b30;
  background: #f2f2f7;
}
[data-theme="dark"] .p2p-detect-summary.pass,
[data-theme="dark"] .p2p-detect-summary.fail {
  background: #2c2c2e;
}

/* 按钮 */
.p2p-detect-btn-wrap {
  text-align: center;
  margin-top: 20px;
}
.p2p-detect-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 28px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  background: var(--theme-color, #399FFF);
  color: #fff;
  transition: opacity 0.2s;
}
.p2p-detect-btn:hover { opacity: 0.8; }
.p2p-detect-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.p2p-detect-retry {
  display: inline-block;
  margin-top: 10px;
  font-size: 13px;
  color: var(--theme-color, #399FFF);
  cursor: pointer;
  border: none;
  background: none;
  padding: 4px 0;
  transition: opacity 0.2s;
}
.p2p-detect-retry:hover { opacity: 0.6; }

/* 撑开 */
.p2p-detect-spacer { flex: 1; }

/* 步骤内进度条 */
.p2p-detect-bar-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}
.p2p-detect-bar {
  flex: 1;
  height: 2px;
  background: rgba(57,159,255,0.08);
  border-radius: 1px;
  overflow: hidden;
}
.p2p-detect-bar-fill {
  height: 100%;
  background: var(--theme-color, #399FFF);
  border-radius: 1px;
  transition: width 0.3s linear;
  width: 0%;
}
.p2p-detect-time {
  font-size: 11px;
  color: #8e8e93;
  font-variant-numeric: tabular-nums;
  min-width: 36px;
  text-align: right;
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════════
   功能介绍起始页
   ═══════════════════════════════════════════════ */

.p2p-intro-wrap {
  max-width: 640px;
  margin: 0 auto;
  padding: 48px 24px 32px;
  min-height: calc(100vh - 120px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.p2p-intro-card {
  background: #fff;
  border: 1px solid #e5e5ea;
  border-radius: 16px;
  padding: 40px 36px;
  width: 100%;
  box-shadow: 0 4px 24px rgba(0,0,0,0.04);
  transition: transform 0.2s;
}
[data-theme="dark"] .p2p-intro-card {
  background: #1c1c1e;
  border-color: #2c2c2e;
  box-shadow: 0 4px 24px rgba(0,0,0,0.2);
}

.p2p-intro-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  border-radius: 16px;
  background: rgba(57,159,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--theme-color, #399FFF);
}

.p2p-intro-icon svg { width: 34px; height: 34px; }

.p2p-intro-title {
  text-align: center;
  font-size: 24px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 4px;
  letter-spacing: -0.3px;
}
[data-theme="dark"] .p2p-intro-title { color: #e8e8ed; }

.p2p-intro-subtitle {
  text-align: center;
  font-size: 14px;
  color: #8e8e93;
  margin-bottom: 28px;
  line-height: 1.5;
}

.p2p-intro-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 28px;
}

.p2p-intro-feature {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border-radius: 10px;
  background: rgba(57,159,255,0.04);
  border: 1px solid rgba(57,159,255,0.1);
  transition: background 0.2s;
}
[data-theme="dark"] .p2p-intro-feature {
  background: rgba(57,159,255,0.06);
  border-color: rgba(57,159,255,0.12);
}

.p2p-intro-feature-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: 8px;
  background: rgba(57,159,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--theme-color, #399FFF);
}

.p2p-intro-feature-icon svg { width: 20px; height: 20px; }

.p2p-intro-feature-body h4 {
  font-size: 14px;
  font-weight: 600;
  color: #1a1a1a;
  margin: 0 0 2px;
}
[data-theme="dark"] .p2p-intro-feature-body h4 { color: #e0e0e0; }

.p2p-intro-feature-body p {
  font-size: 12px;
  color: #8e8e93;
  margin: 0;
  line-height: 1.4;
}

.p2p-intro-mode-tags {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 24px;
}

/* 房间邀请提示横幅 */
.p2p-intro-invite {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  margin: -8px 0 16px;
  background: rgba(57,159,255,0.06);
  border: 1px solid rgba(57,159,255,0.15);
  border-radius: 8px;
  font-size: 13px;
}
[data-theme="dark"] .p2p-intro-invite {
  background: rgba(57,159,255,0.08);
  border-color: rgba(57,159,255,0.2);
}
.p2p-intro-invite-icon { font-size: 16px; }
.p2p-intro-invite-text { color: #555; }
[data-theme="dark"] .p2p-intro-invite-text { color: #aaa; }
.p2p-intro-invite-room {
  font-weight: 600;
  color: var(--theme-color, #399FFF);
  background: rgba(57,159,255,0.08);
  padding: 1px 8px;
  border-radius: 4px;
  font-family: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
  font-size: 12px;
}

.p2p-intro-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 20px;
  font-weight: 500;
}

.p2p-intro-tag.webrtc {
  background: rgba(52,199,89,0.1);
  color: #34c759;
  border: 1px solid rgba(52,199,89,0.2);
}

.p2p-intro-tag.relay {
  background: rgba(230,126,34,0.1);
  color: #e67e22;
  border: 1px solid rgba(230,126,34,0.2);
}

.p2p-intro-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px 28px;
  border: none;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  background: var(--theme-color, #399FFF);
  color: #fff;
  transition: opacity 0.2s, transform 0.1s;
}

.p2p-intro-btn:hover { opacity: 0.85; }
.p2p-intro-btn:active { transform: scale(0.98); }

/* ═══════════════════════════════════════════════
   房间设置页
   ═══════════════════════════════════════════════ */

.p2p-settings-wrap {
  max-width: 560px;
  margin: 0 auto;
  padding: 48px 20px 32px;
  min-height: calc(100vh - 120px);
  display: flex;
  flex-direction: column;
}

.p2p-settings-header {
  text-align: center;
  margin-bottom: 28px;
}

.p2p-settings-header-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 12px;
  border-radius: 12px;
  background: rgba(57,159,255,0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--theme-color, #399FFF);
}

.p2p-settings-title {
  font-size: 20px;
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 2px;
}
[data-theme="dark"] .p2p-settings-title { color: #e0e0e0; }

.p2p-settings-subtitle {
  font-size: 13px;
  color: #8e8e93;
}

.p2p-settings-section {
  background: #fff;
  border: 1px solid #e5e5ea;
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 14px;
}
[data-theme="dark"] .p2p-settings-section {
  background: #1c1c1e;
  border-color: #2c2c2e;
}

.p2p-settings-label {
  font-size: 13px;
  font-weight: 600;
  color: #555;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}
[data-theme="dark"] .p2p-settings-label { color: #888; }

.p2p-settings-room-row {
  display: flex;
  gap: 8px;
  align-items: center;
}
.p2p-settings-room-row .p2p-settings-input {
  flex: 1;
}
.p2p-settings-random-btn {
  width: 38px;
  height: 38px;
  border: 1px solid rgba(0,0,0,0.12);
  border-radius: 8px;
  background: rgba(255,255,255,0.8);
  cursor: pointer;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.15s, transform 0.1s;
  padding: 0;
  line-height: 1;
}
[data-theme="dark"] .p2p-settings-random-btn {
  background: rgba(40,42,65,0.8);
  border-color: rgba(255,255,255,0.1);
}
.p2p-settings-random-btn:hover {
  background: rgba(var(--theme-color-rgb,57,159,255),0.1);
  border-color: var(--theme-color, #399FFF);
}
.p2p-settings-random-btn:active {
  transform: scale(0.92);
}

.p2p-settings-input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid rgba(0,0,0,0.12);
  border-radius: 8px;
  font-size: 14px;
  background: rgba(255,255,255,0.8);
  color: #333;
  outline: none;
  box-sizing: border-box;
  transition: border-color 0.2s;
}
[data-theme="dark"] .p2p-settings-input {
  background: rgba(40,42,65,0.8);
  border-color: rgba(255,255,255,0.1);
  color: #ddd;
}
.p2p-settings-input:focus {
  border-color: var(--theme-color, #399FFF);
}

/* 房间类型选择卡片 */
.p2p-settings-room-types {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.p2p-settings-room-type {
  padding: 16px;
  border: 2px solid #e5e5ea;
  border-radius: 10px;
  cursor: pointer;
  text-align: center;
  transition: border-color 0.2s, background 0.2s;
  background: #f9f9fb;
}
[data-theme="dark"] .p2p-settings-room-type {
  border-color: #3a3a3c;
  background: #262628;
}

.p2p-settings-room-type:hover {
  border-color: rgba(57,159,255,0.3);
}

.p2p-settings-room-type.selected {
  border-color: var(--theme-color, #399FFF);
  background: rgba(57,159,255,0.04);
}
[data-theme="dark"] .p2p-settings-room-type.selected {
  background: rgba(57,159,255,0.08);
}

.p2p-settings-room-type-icon {
  font-size: 24px;
  margin-bottom: 6px;
}

.p2p-settings-room-type-name {
  font-size: 14px;
  font-weight: 600;
  color: #1a1a1a;
  margin-bottom: 2px;
}
[data-theme="dark"] .p2p-settings-room-type-name { color: #e0e0e0; }

.p2p-settings-room-type-desc {
  font-size: 11px;
  color: #8e8e93;
  line-height: 1.4;
}

.p2p-settings-room-type.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  border-color: #e5e5ea;
  background: #f2f2f7;
}
[data-theme="dark"] .p2p-settings-room-type.disabled {
  border-color: #3a3a3c;
  background: #1c1c1e;
  opacity: 0.4;
}
.p2p-settings-room-type.disabled:hover {
  border-color: #e5e5ea;
  background: #f2f2f7;
}
[data-theme="dark"] .p2p-settings-room-type.disabled:hover {
  border-color: #3a3a3c;
  background: #1c1c1e;
}

.p2p-settings-checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #555;
  cursor: pointer;
}
[data-theme="dark"] .p2p-settings-checkbox-label { color: #888; }
.p2p-settings-checkbox-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--theme-color, #399FFF);
  cursor: pointer;
}

.p2p-settings-actions {
  display: flex;
  gap: 10px;
  margin-top: 8px;
}

.p2p-settings-btn {
  flex: 1;
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s;
  text-align: center;
}

.p2p-settings-btn.primary {
  background: var(--theme-color, #399FFF);
  color: #fff;
}

.p2p-settings-btn.outline {
  background: transparent;
  border: 1px solid rgba(0,0,0,0.1);
  color: #555;
}
[data-theme="dark"] .p2p-settings-btn.outline {
  border-color: rgba(255,255,255,0.1);
  color: #999;
}

.p2p-settings-btn.primary:hover { opacity: 0.85; }
.p2p-settings-btn.outline:hover { background: rgba(0,0,0,0.03); }
[data-theme="dark"] .p2p-settings-btn.outline:hover { background: rgba(255,255,255,0.04); }

/* ═══════════════════════════════════════════════
   流量曲线图 (类似任务管理器)
   ═══════════════════════════════════════════════ */

.p2p-traffic-chart-wrap {
  background: rgba(0,0,0,0.03);
  border-radius: 8px;
  padding: 10px;
  margin: 8px 12px 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
[data-theme="dark"] .p2p-traffic-chart-wrap {
  background: rgba(255,255,255,0.04);
}

.p2p-traffic-chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  color: #8e8e93;
  padding: 0 4px;
}

.p2p-traffic-chart-label {
  display: flex;
  align-items: center;
  gap: 4px;
}

.p2p-traffic-chart-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #e67e22;
  display: inline-block;
}

.p2p-traffic-chart-value {
  font-variant-numeric: tabular-nums;
  font-weight: 500;
  color: #e67e22;
}

.p2p-traffic-chart-canvas {
  width: 100%;
  height: 80px;
  border-radius: 4px;
  display: block;
  background: rgba(0,0,0,0.04);
}
[data-theme="dark"] .p2p-traffic-chart-canvas {
  background: rgba(255,255,255,0.04);
}

/* ═══════════════════════════════════════════════
   房间信息提示 (进入前显示)
   ═══════════════════════════════════════════════ */

.p2p-room-info-hint {
  font-size: 12px;
  color: #8e8e93;
  padding: 6px 10px;
  background: rgba(57,159,255,0.06);
  border-radius: 6px;
  margin-top: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.p2p-room-info-hint .p2p-room-type-tag {
  font-size: 11px;
  padding: 1px 8px;
  border-radius: 10px;
  font-weight: 600;
}

.p2p-room-type-tag.websrc {
  background: rgba(52,199,89,0.1);
  color: #34c759;
}

.p2p-room-type-tag.server {
  background: rgba(230,126,34,0.1);
  color: #e67e22;
}

/* ═══════════════════════════════════════════════
   检测结果增强
   ═══════════════════════════════════════════════ */

.p2p-detect-capabilities {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 10px;
}

.p2p-capability-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 12px;
  font-weight: 500;
}

.p2p-capability-badge.available {
  background: rgba(52,199,89,0.08);
  color: #34c759;
  border: 1px solid rgba(52,199,89,0.15);
}

.p2p-capability-badge.limited {
  background: rgba(255,149,0,0.08);
  color: #ff9500;
  border: 1px solid rgba(255,149,0,0.15);
}

.p2p-capability-badge.unavailable {
  background: rgba(255,59,48,0.08);
  color: #ff3b30;
  border: 1px solid rgba(255,59,48,0.15);
}

@media (max-width: 480px) {
  .p2p-intro-features { grid-template-columns: 1fr; }
  .p2p-settings-room-types { grid-template-columns: 1fr; }
  .p2p-intro-card { padding: 20px 14px; }
  .p2p-topbar input { max-width: 80px; }
  .p2p-peer-name { max-width: 60px; }
  .p2p-peer-name span { display: none; }
  .p2p-detect-progress { margin-bottom: 20px; }
  .p2p-detect-btn { font-size: 13px; padding: 8px 20px; }
  .p2p-modal { padding: 24px 18px 20px; }
  .p2p-modal-actions { flex-direction: column; }
}


/* ── 底部刷新指示 ── */
.p2p-refresh-indicator {
  font-size: 10px;
  color: #8e8e93;
  padding: 4px 12px;
  text-align: left;
  opacity: 0.6;
  flex-shrink: 0;
}
[data-theme="dark"] .p2p-refresh-indicator {
  color: #555;
}

/* ── 断连弹窗 ── */
/* 小屏兜底：遮罩留边距可滚动，弹窗限高并在内部滚动，避免高过视口后关不掉 */
.p2p-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  padding: 16px;
  overflow-y: auto;
  overscroll-behavior: contain;
}
.p2p-modal {
  background: #fff;
  border-radius: 16px;
  padding: 32px 28px 24px;
  width: 320px;
  max-width: 100%;
  text-align: center;
  box-shadow: 0 16px 48px rgba(0,0,0,0.2);
  margin: auto;
  max-height: calc(100vh - 32px);
  max-height: calc(100dvh - 32px);
  overflow-y: auto;
  overscroll-behavior: contain;
}
[data-theme="dark"] .p2p-modal {
  background: #1c1c1e;
}
.p2p-modal-icon {
  font-size: 40px;
  margin-bottom: 12px;
}
.p2p-modal-title {
  font-size: 18px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 8px;
}
[data-theme="dark"] .p2p-modal-title { color: #e8e8ed; }
.p2p-modal-text {
  font-size: 14px;
  color: #8e8e93;
  line-height: 1.5;
  margin-bottom: 20px;
}
.p2p-modal-actions {
  display: flex;
  gap: 10px;
}
.p2p-modal-btn {
  flex: 1;
  padding: 10px 16px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  background: rgba(0,0,0,0.05);
  color: #555;
  transition: opacity 0.2s;
}
[data-theme="dark"] .p2p-modal-btn {
  background: rgba(255,255,255,0.08);
  color: #aaa;
}
.p2p-modal-btn.primary {
  background: var(--theme-color, #399FFF);
  color: #fff;
}
.p2p-modal-btn:hover { opacity: 0.8; }

/* ── 连接状态指示器（页面内常驻） ── */
.p2p-conn-status {
  position: fixed;
  top: 8px;
  right: 8px;
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 500;
  z-index: 999;
  background: rgba(255,255,255,0.9);
  border: 1px solid rgba(0,0,0,0.06);
  box-shadow: 0 1px 6px rgba(0,0,0,0.06);
  color: #555;
  pointer-events: none;
}
[data-theme="dark"] .p2p-conn-status {
  background: rgba(28,28,30,0.9);
  border-color: rgba(255,255,255,0.08);
  color: #999;
}
.p2p-conn-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  display: inline-block;
  transition: background-color 0.3s;
}
.p2p-conn-status.connected .p2p-conn-dot { background: #34c759; }
.p2p-conn-status.disconnected .p2p-conn-dot { background: #ff3b30; }
.p2p-conn-status.reconnecting .p2p-conn-dot {
  background: #ff9500;
  animation: p2p-pulse 0.8s ease-in-out infinite;
}
.p2p-conn-label {
  white-space: nowrap;
}

/* ── 暗色模式按钮适配：透明/浅灰底按钮在深色背景上不可见，统一修正 ── */
[data-theme="dark"] .p2p-icon-btn { color: #b0b0c8; }
[data-theme="dark"] .p2p-icon-btn:hover { color: var(--theme-color, #399FFF); }
[data-theme="dark"] .p2p-modal-btn,
[data-theme="dark"] .p2p-settings-btn.outline {
  background: rgba(255,255,255,0.08);
  color: #b0b0c8;
  border-color: rgba(255,255,255,0.15);
}
[data-theme="dark"] .p2p-modal-btn:hover,
[data-theme="dark"] .p2p-settings-btn.outline:hover {
  background: rgba(255,255,255,0.14);
  color: #e0e0f0;
  border-color: var(--theme-color, #399FFF);
}