/* AI 服务页面样式 */

/* 主内容区 */
.ai-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 60px 30px 80px;
}

/* 通用区块 */
.ai-section {
  margin-bottom: 80px;
}

.ai-section-header {
  text-align: center;
  margin-bottom: 40px;
}

.ai-section-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--doc-text);
  margin-bottom: 12px;
  letter-spacing: 1px;
}

.ai-section-desc {
  font-size: 15px;
  color: var(--doc-text-dim);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ==================== 多模型支持区域 ==================== */
.ai-providers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.ai-provider-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: var(--doc-panel-bg);
  border: 1px solid var(--doc-border);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.ai-provider-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--doc-primary), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.ai-provider-card:hover {
  border-color: var(--doc-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 243, 255, 0.1);
}

.ai-provider-card:hover::before {
  opacity: 1;
}

.ai-provider-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 243, 255, 0.1);
  border-radius: 10px;
  color: var(--doc-primary);
  flex-shrink: 0;
}

.ai-provider-icon svg {
  width: 24px;
  height: 24px;
}

.ai-provider-text-icon {
  font-size: 14px;
  font-weight: 700;
  color: var(--doc-primary);
}

.ai-provider-info {
  flex: 1;
  min-width: 0;
}

.ai-provider-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--doc-text);
  margin-bottom: 4px;
}

.ai-provider-models {
  font-size: 12px;
  color: var(--doc-text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ai-provider-status {
  flex-shrink: 0;
}

.ai-status-dot {
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--doc-primary);
  animation: pulse 2s infinite;
}

.ai-status-dot.local {
  background: #28c840;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.ai-providers-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px;
  background: rgba(0, 243, 255, 0.05);
  border: 1px dashed rgba(0, 243, 255, 0.3);
  border-radius: 8px;
  font-size: 13px;
  color: var(--doc-text-dim);
}

.ai-note-icon {
  font-size: 16px;
}

/* ==================== 分隔线 ==================== */
.ai-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 60px 0;
  position: relative;
}

.ai-divider::before,
.ai-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--doc-border), transparent);
}

.ai-divider-text {
  padding: 0 24px;
  font-size: 14px;
  font-weight: 600;
  color: var(--doc-primary);
  text-transform: uppercase;
  letter-spacing: 3px;
}

/* ==================== 内置 AI 功能区域 ==================== */
.ai-features-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  align-items: start;
}

.ai-features-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ai-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 20px;
  background: var(--doc-panel-bg);
  border: 1px solid var(--doc-border);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.ai-feature-item:hover {
  border-color: rgba(0, 243, 255, 0.5);
}

.ai-feature-item.active {
  border-color: var(--doc-primary);
  background: rgba(0, 243, 255, 0.05);
}

.ai-feature-icon {
  font-size: 24px;
  flex-shrink: 0;
  margin-top: 2px;
}

.ai-feature-content {
  flex: 1;
  min-width: 0;
}

.ai-feature-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--doc-text);
  margin-bottom: 4px;
}

.ai-feature-desc {
  font-size: 13px;
  color: var(--doc-text-dim);
  line-height: 1.5;
}

/* 演示窗口 */
.ai-features-demo {
  position: sticky;
  top: 100px;
}

.ai-demo-window {
  background: var(--doc-sidebar-bg);
  border: 1px solid var(--doc-border);
  border-radius: 12px;
  overflow: hidden;
}

.ai-demo-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid var(--doc-border);
}

.ai-demo-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.ai-demo-dot.red { background: #ff5f57; }
.ai-demo-dot.yellow { background: #febc2e; }
.ai-demo-dot.green { background: #28c840; }

.ai-demo-title {
  margin-left: 8px;
  font-size: 13px;
  color: var(--doc-text-dim);
}

.ai-demo-content {
  padding: 24px;
  min-height: 300px;
}

/* 演示内容样式 */
.ai-demo-chat {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.ai-demo-message {
  max-width: 85%;
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 13px;
  line-height: 1.6;
  animation: fadeInUp 0.4s ease;
}

.ai-demo-message.user {
  align-self: flex-end;
  background: var(--doc-primary);
  color: #000;
  border-bottom-right-radius: 4px;
}

.ai-demo-message.ai {
  align-self: flex-start;
  background: var(--doc-panel-bg);
  color: var(--doc-text);
  border: 1px solid var(--doc-border);
  border-bottom-left-radius: 4px;
}

.ai-demo-typing {
  display: flex;
  gap: 4px;
  padding: 12px 16px;
  background: var(--doc-panel-bg);
  border: 1px solid var(--doc-border);
  border-radius: 12px;
  width: fit-content;
}

.ai-demo-typing span {
  width: 6px;
  height: 6px;
  background: var(--doc-text-dim);
  border-radius: 50%;
  animation: typing 1.4s infinite;
}

.ai-demo-typing span:nth-child(2) { animation-delay: 0.2s; }
.ai-demo-typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-4px); opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==================== 多风格区域 ==================== */
.ai-styles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.ai-style-card {
  padding: 20px;
  background: var(--doc-panel-bg);
  border: 1px solid var(--doc-border);
  border-radius: 12px;
  transition: all 0.3s ease;
}

.ai-style-card:hover {
  border-color: rgba(0, 243, 255, 0.5);
  transform: translateY(-2px);
}

.ai-style-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.ai-style-icon {
  font-size: 20px;
}

.ai-style-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--doc-text);
}

.ai-style-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ai-style-tag {
  padding: 4px 10px;
  background: rgba(0, 243, 255, 0.1);
  border: 1px solid rgba(0, 243, 255, 0.2);
  border-radius: 4px;
  font-size: 12px;
  color: var(--doc-primary);
}

.ai-custom-prompt {
  padding: 20px;
  background: rgba(0, 243, 255, 0.05);
  border: 1px dashed rgba(0, 243, 255, 0.3);
  border-radius: 10px;
  text-align: center;
}

.ai-custom-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 14px;
  color: var(--doc-text);
}

.ai-custom-icon {
  font-size: 18px;
}

/* 返回链接 */
.back-link {
  display: block;
  text-align: center;
  margin-top: 60px;
  color: var(--doc-text-dim);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}

.back-link:hover {
  color: var(--doc-primary);
}

/* ==================== 响应式 ==================== */
@media (max-width: 768px) {
  .ai-main {
    padding: 40px 20px 60px;
  }

  .ai-section-title {
    font-size: 22px;
  }

  .ai-providers-grid {
    grid-template-columns: 1fr;
  }

  .ai-features-container {
    grid-template-columns: 1fr;
  }

  .ai-features-demo {
    position: static;
    order: -1;
    margin-bottom: 24px;
  }

  .ai-styles-grid {
    grid-template-columns: 1fr;
  }
}