/**
 * 导潮广州 - AI民生页面专属样式（沉浸式对话布局 v4）
 * 豆包/现代AI聊天风格：全屏沉浸式、左侧可折叠侧栏、底部pill输入栏
 * @author Kou (寇豆码)
 */

/* ===== 沉浸式应用容器 ===== */
.ms-app {
  display: flex;
  height: calc(100vh - var(--header-height));
  overflow: hidden;
  background: var(--color-bg);
  position: relative;
}

/* ===== 左侧边栏 ===== */
.ms-sidebar {
  width: 260px;
  background: var(--color-white);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: margin-left var(--transition-normal);
  overflow: hidden;
}

.ms-sidebar.collapsed {
  margin-left: -260px;
}

.ms-sidebar__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.ms-new-chat-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 10px var(--space-md);
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-primary);
  font-size: var(--fs-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.ms-new-chat-btn:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.ms-sidebar__collapse {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-light);
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.ms-sidebar__collapse:hover {
  background: var(--color-bg-alt);
  color: var(--color-text);
}

.ms-sidebar__body {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-md);
}

.ms-sidebar__section {
  margin-bottom: var(--space-lg);
}

.ms-sidebar__title {
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--color-border);
}

/* 会话列表 */
.session-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.session-list__empty {
  font-size: var(--fs-sm);
  color: var(--color-text-light);
  text-align: center;
  padding: var(--space-lg) 0;
}

.session-item {
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  position: relative;
}

.session-item:hover {
  background: var(--color-bg-alt);
}

.session-item.active {
  background: rgba(26, 107, 142, 0.08);
  border-color: rgba(26, 107, 142, 0.2);
}

.session-item__title {
  font-size: var(--fs-sm);
  font-weight: 500;
  margin-bottom: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding-right: 20px;
}

.session-item__time {
  font-size: var(--fs-xs);
  color: var(--color-text-light);
}

.session-item__delete {
  position: absolute;
  right: var(--space-sm);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-light);
  opacity: 0;
  transition: opacity var(--transition-fast);
  font-size: var(--fs-sm);
  cursor: pointer;
  padding: 4px;
  line-height: 1;
}

.session-item:hover .session-item__delete {
  opacity: 0.6;
}

.session-item__delete:hover {
  opacity: 1;
  color: var(--color-error);
}

/* 侧栏遮罩（移动端） */
.ms-sidebar__overlay {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 998;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.ms-sidebar__overlay.open {
  display: block;
  opacity: 1;
}

/* ===== 主聊天区域 ===== */
.ms-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  position: relative;
  background: var(--color-bg);
}

/* 顶部工具栏 */
.ms-toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
  min-height: 52px;
}

.ms-toolbar__menu {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.ms-toolbar__menu:hover {
  background: var(--color-bg-alt);
}

.ms-toolbar__title {
  flex: 1;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--color-text);
}

.ms-toolbar__avatar {
  font-size: 20px;
}

.ms-toolbar__status {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--fs-xs);
  color: var(--color-text-light);
}

.ms-toolbar__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #4ADE80;
}

.ms-toolbar__dot.typing {
  background: #FBBF24;
  animation: pulse 1s ease-in-out infinite;
}

/* 消息区域 */
.ms-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-lg) var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  scroll-behavior: smooth;
}

/* 欢迎页 */
.ms-welcome {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
  animation: fadeInUp var(--transition-normal) ease;
}

.ms-welcome__avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  margin-bottom: var(--space-md);
  box-shadow: var(--shadow-md);
}

.ms-welcome__title {
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.ms-welcome__desc {
  font-size: var(--fs-sm);
  color: var(--color-text-light);
  margin-bottom: var(--space-xl);
}

.ms-welcome__questions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
  max-width: 640px;
  width: 100%;
}

/* 热门问题胶囊 */
.ms-hot-q {
  padding: var(--space-sm) var(--space-md);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 18px;
  font-size: var(--fs-sm);
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
  line-height: var(--lh-normal);
}

.ms-hot-q:hover {
  border-color: var(--color-primary-light);
  background: rgba(26, 107, 142, 0.04);
  color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

/* 快捷问题胶囊条 */
.ms-quickbar {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  overflow-x: auto;
  flex-shrink: 0;
  background: transparent;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.ms-quickbar::-webkit-scrollbar {
  display: none;
}

.ms-quickbar__item {
  flex-shrink: 0;
  padding: 6px var(--space-md);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.ms-quickbar__item:hover {
  border-color: var(--color-primary-light);
  background: rgba(26, 107, 142, 0.04);
  color: var(--color-primary);
}

/* ===== 底部输入栏 ===== */
.ms-input-bar {
  flex-shrink: 0;
  padding: var(--space-sm) var(--space-md) var(--space-sm);
  background: transparent;
}

.ms-input-bar__inner {
  display: flex;
  align-items: flex-end;
  gap: var(--space-sm);
  background: var(--color-white);
  border-radius: 24px;
  padding: var(--space-xs) var(--space-sm);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  max-width: 800px;
  margin: 0 auto;
}

.ms-input-bar__toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 50%;
  background: var(--color-bg-alt);
  color: var(--color-text-light);
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.ms-input-bar__toggle:hover {
  background: rgba(26, 107, 142, 0.1);
  color: var(--color-primary);
}

.ms-input-bar__toggle.active {
  background: var(--color-primary);
  color: var(--color-white);
}

.ms-input-bar__textarea {
  flex: 1;
  padding: 10px var(--space-sm);
  border: none;
  background: transparent;
  font-size: var(--fs-sm);
  font-family: var(--font-sans);
  resize: none;
  max-height: 120px;
  min-height: 40px;
  line-height: var(--lh-normal);
  color: var(--color-text);
  outline: none;
}

.ms-input-bar__textarea::placeholder {
  color: var(--color-text-light);
}

.ms-input-bar__voice-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 12px;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-lg);
  background: rgba(26, 107, 142, 0.04);
  color: var(--color-primary);
  font-size: var(--fs-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 44px;
}

.ms-input-bar__voice-btn:hover {
  background: rgba(26, 107, 142, 0.08);
}

.ms-input-bar__voice-btn.recording {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

.ms-input-bar__send {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: var(--color-white);
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.ms-input-bar__send:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}

.ms-input-bar__send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: scale(1);
}

.ms-input-bar__hint {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-xs) var(--space-sm) 0;
  font-size: var(--fs-xs);
  color: var(--color-text-light);
  max-width: 800px;
  margin: 0 auto;
}

/* ===== 语音录入浮层 ===== */
.ms-voice-overlay {
  display: none;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(245, 241, 232, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 100;
  align-items: center;
  justify-content: center;
}

.ms-voice-overlay.open {
  display: flex;
  animation: fadeIn var(--transition-fast) ease;
}

.ms-voice-overlay__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.ms-voice-overlay__wave {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 60px;
}

.ms-voice-overlay__wave span {
  width: 4px;
  height: 20px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  animation: voiceWave 1s ease-in-out infinite;
}

.ms-voice-overlay__wave span:nth-child(2) { animation-delay: 0.1s; }
.ms-voice-overlay__wave span:nth-child(3) { animation-delay: 0.2s; }
.ms-voice-overlay__wave span:nth-child(4) { animation-delay: 0.3s; }
.ms-voice-overlay__wave span:nth-child(5) { animation-delay: 0.4s; }

.ms-voice-overlay__text {
  font-size: var(--fs-md);
  color: var(--color-text);
  font-weight: 500;
}

.ms-voice-overlay__cancel {
  padding: 10px var(--space-xl);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-white);
  color: var(--color-text);
  font-size: var(--fs-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.ms-voice-overlay__cancel:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

@keyframes voiceWave {
  0%, 100% { height: 12px; }
  50% { height: 48px; }
}

/* ===== Markdown内容样式 ===== */
.msg-bubble__content .md-h1,
.msg-bubble__content .md-h2,
.msg-bubble__content .md-h3 {
  margin: var(--space-sm) 0;
}

.msg-bubble__content .md-p {
  margin-bottom: var(--space-sm);
}

.msg-bubble__content .md-ul {
  margin: var(--space-sm) 0;
  padding-left: var(--space-lg);
}

.msg-bubble__content .md-ul li {
  list-style: disc;
  margin-bottom: var(--space-xs);
}

.msg-bubble__content .md-code-block {
  background: rgba(0, 0, 0, 0.05);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin: var(--space-sm) 0;
  overflow-x: auto;
}

.msg-bubble__content .md-code-block code {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
}

.msg-bubble__content .md-code-inline {
  background: rgba(0, 0, 0, 0.06);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.msg-bubble__content .md-quote {
  border-left: 3px solid var(--color-primary-light);
  padding-left: var(--space-md);
  margin: var(--space-sm) 0;
  color: var(--color-text-light);
  font-style: italic;
}

.msg-bubble__content .md-hr {
  border: none;
  height: 1px;
  background: var(--color-border);
  margin: var(--space-md) 0;
}

.msg-bubble__content strong {
  font-weight: 700;
  color: var(--color-primary-dark);
}

.msg-bubble__content a {
  color: var(--color-link);
  text-decoration: underline;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .ms-sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    bottom: 0;
    z-index: 999;
    box-shadow: var(--shadow-lg);
  }

  .ms-sidebar.collapsed {
    margin-left: -280px;
  }

  .ms-sidebar__collapse {
    display: none;
  }

  .ms-welcome__questions {
    gap: var(--space-xs);
  }
}

@media (max-width: 768px) {
  .ms-sidebar {
    width: 280px;
  }

  .ms-toolbar__title {
    font-size: var(--fs-sm);
  }

  .ms-toolbar__status {
    display: none;
  }

  .ms-messages {
    padding: var(--space-md) var(--space-sm);
  }

  .ms-welcome__avatar {
    width: 56px;
    height: 56px;
    font-size: 28px;
  }

  .ms-welcome__title {
    font-size: var(--fs-lg);
  }

  .ms-welcome__questions {
    flex-direction: column;
    align-items: center;
  }

  .ms-input-bar {
    padding: var(--space-xs) var(--space-sm);
  }

  .ms-input-bar__inner {
    border-radius: 22px;
  }

  .ms-input-bar__hint {
    display: none;
  }

  .ms-quickbar {
    padding: var(--space-xs) var(--space-sm);
  }

  .msg-col {
    max-width: 85% !important;
  }
}