/* ============================================
   元能台全站UI统一升级 v2.0
   设计风格：腾讯蓝 · 亮色鲜明 · 精致现代
   用法：在各页面</title>后引入即可叠加生效
   ============================================ */

/* ===== 全局变量 ===== */
:root {
  --yl-primary: #2563eb;
  --yl-primary-light: #3b82f6;
  --yl-primary-dark: #1d4ed8;
  --yl-primary-gradient: linear-gradient(135deg, #2563eb 0%, #0ea5e9 100%);
  --yl-bg: #f8fafc;
  --yl-bg-card: #ffffff;
  --yl-border: #e2e8f0;
  --yl-border-light: #f1f5f9;
  --yl-text-1: #0f172a;
  --yl-text-2: #334155;
  --yl-text-3: #64748b;
  --yl-text-4: #94a3b8;
  --yl-radius-sm: 8px;
  --yl-radius-md: 12px;
  --yl-radius-lg: 16px;
  --yl-radius-xl: 20px;
  --yl-shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --yl-shadow-md: 0 4px 12px rgba(0,0,0,0.06);
  --yl-shadow-lg: 0 12px 32px rgba(37,99,235,0.1);
  --yl-shadow-blue: 0 4px 16px rgba(37,99,235,0.15);
}

/* ===== 基础 ===== */
* {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--yl-bg) !important;
  color: var(--yl-text-2) !important;
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB',
    'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif !important;
}

/* ===== 导航栏升级 ===== */
.nav,
.sb-global-nav {
  height: 58px !important;
  background: rgba(255,255,255,0.85) !important;
  backdrop-filter: saturate(180%) blur(12px) !important;
  -webkit-backdrop-filter: saturate(180%) blur(12px) !important;
  border-bottom: 1px solid var(--yl-border-light) !important;
  box-shadow: 0 1px 2px rgba(0,0,0,0.02) !important;
}

/* ===== 按钮统一升级 ===== */
button,
.btn,
.sb-btn,
.sb-btn-simple,
.btn-primary,
.btn-outline,
.btn-cta {
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

/* 主按钮 */
.btn-primary,
.sb-btn-primary,
button.primary {
  background: var(--yl-primary-gradient) !important;
  border: none !important;
  color: #fff !important;
  box-shadow: 0 2px 8px rgba(37,99,235,0.25) !important;
}
.btn-primary:hover,
.sb-btn-primary:hover,
button.primary:hover {
  transform: translateY(-1px) !important;
  box-shadow: 0 4px 16px rgba(37,99,235,0.35) !important;
  color: #fff !important;
}

/* 次按钮/描边按钮 */
.btn-outline,
.sb-btn-simple:not(.sb-btn-primary) {
  background: #fff !important;
  border: 1px solid var(--yl-border) !important;
  color: var(--yl-text-2) !important;
}
.btn-outline:hover,
.sb-btn-simple:not(.sb-btn-primary):hover {
  border-color: var(--yl-primary-light) !important;
  color: var(--yl-primary) !important;
  background: #eff6ff !important;
}

/* ===== 卡片统一升级 ===== */
.skill-card,
.card,
.feature-card,
.pricing-card,
.stat-card {
  background: #fff !important;
  border-radius: var(--yl-radius-lg) !important;
  border: 1px solid var(--yl-border) !important;
  box-shadow: var(--yl-shadow-sm) !important;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1) !important;
  overflow: hidden !important;
}
.skill-card:hover,
.card:hover,
.feature-card:hover,
.pricing-card:hover {
  transform: translateY(-4px) !important;
  box-shadow: var(--yl-shadow-lg) !important;
  border-color: #93c5fd !important;
}

/* ===== 输入框升级 ===== */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
textarea,
select {
  border-radius: var(--yl-radius-sm) !important;
  border: 1px solid var(--yl-border) !important;
  transition: all 0.15s !important;
  font-family: inherit !important;
}
input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="search"]:focus,
textarea:focus,
select:focus {
  outline: none !important;
  border-color: var(--yl-primary-light) !important;
  box-shadow: 0 0 0 3px rgba(59,130,246,0.1) !important;
}

/* ===== 标签/徽章 ===== */
.tag,
.badge,
.level-badge,
.source-badge,
.sb-tag {
  border-radius: 8px !important;
  font-weight: 500 !important;
  padding: 2px 10px !important;
  font-size: 11px !important;
}

/* ===== 分类胶囊 ===== */
.cat-card,
.cat-item,
.filter-tag,
.tag-item {
  border-radius: 20px !important;
  border: 1px solid var(--yl-border) !important;
  background: #fff !important;
  transition: all 0.15s !important;
}
.cat-card:hover,
.cat-item:hover,
.filter-tag:hover {
  background: #eff6ff !important;
  border-color: #93c5fd !important;
  color: var(--yl-primary) !important;
}

/* ===== 分区标题 ===== */
.section-header h2,
.section-title,
.module-title {
  font-weight: 700 !important;
  color: var(--yl-text-1) !important;
  letter-spacing: 0.3px !important;
}

/* ===== CTA横幅 ===== */
.cta,
.cta-section,
.banner-cta {
  background: var(--yl-primary-gradient) !important;
  border-radius: 0 !important;
}

/* ===== 页脚 ===== */
.footer,
footer {
  background: #0f172a !important;
  color: var(--yl-text-4) !important;
  border-top: none !important;
}
.footer a,
footer a {
  color: #64748b !important;
  transition: color 0.15s !important;
}
.footer a:hover,
footer a:hover {
  color: #93c5fd !important;
}

/* ===== 滚动条美化 ===== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

/* ===== 选中文本 ===== */
::selection {
  background: #bfdbfe;
  color: var(--yl-text-1);
}

/* ===== 响应式优化 ===== */
@media (max-width: 768px) {
  .nav,
  .sb-global-nav {
    height: 52px !important;
    padding: 0 12px !important;
  }
}

/* ===== 对话台宽度优化 ===== */
/* 自适应屏幕宽度，两侧留白，不锁死最大宽度 */
.msg-wrap {
  max-width: none !important;
  width: auto !important;
  margin: 0 5% !important;
}

/* 欢迎区同步放宽 */
.welcome p {
  max-width: none !important;
  margin-left: auto !important;
  margin-right: auto !important;
}
.welcome .quick-grid {
  max-width: none !important;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)) !important;
  margin: 0 8% !important;
}

/* 输入框区域与消息区对齐 */
.input-area {
  max-width: none !important;
  margin: 0 5% !important;
  width: auto !important;
}

/* 超宽屏留白更多，避免一行过宽难读 */
@media (min-width: 1600px) {
  .msg-wrap {
    margin: 0 10% !important;
  }
  .input-area {
    margin: 0 10% !important;
  }
  .welcome .quick-grid {
    margin: 0 12% !important;
  }
}

/* 消息气泡跟随容器自适应 */
.msg .m-body {
  max-width: 80% !important;
}

/* ===== 设置面板重排 ===== */
.settings-panel {
  width: 440px !important;
  max-width: 94vw !important;
  border-radius: 16px !important;
  background: #fff !important;
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.18) !important;
  overflow: hidden !important;
}

.sp-hd {
  padding: 18px 20px !important;
  border-bottom: 1px solid var(--yl-border-light) !important;
  background: linear-gradient(135deg, #f8fafc 0%, #eff6ff 100%) !important;
}
.sp-hd h3 {
  font-size: 17px !important;
  font-weight: 700 !important;
  color: var(--yl-text-1) !important;
  letter-spacing: 0.3px !important;
}
.sp-close {
  width: 32px !important;
  height: 32px !important;
  border-radius: 8px !important;
  font-size: 16px !important;
  color: var(--yl-text-3) !important;
  transition: all 0.15s !important;
}
.sp-close:hover {
  background: #e2e8f0 !important;
  color: var(--yl-text-1) !important;
}

.sp-body {
  padding: 20px !important;
}

/* 分组样式 */
.sp-section {
  margin-bottom: 20px !important;
  padding-bottom: 16px !important;
  border-bottom: 1px solid var(--yl-border-light) !important;
}
.sp-section:last-of-type {
  margin-bottom: 0 !important;
  padding-bottom: 0 !important;
  border-bottom: none !important;
}
.sp-section-title {
  font-size: 12px !important;
  font-weight: 600 !important;
  color: var(--yl-primary) !important;
  text-transform: none !important;
  letter-spacing: 0.5px !important;
  margin-bottom: 12px !important;
  display: flex !important;
  align-items: center !important;
  gap: 6px !important;
}
.sp-section-title::before {
  content: '';
  width: 3px;
  height: 12px;
  background: var(--yl-primary-gradient);
  border-radius: 2px;
}

/* 设置行重排：标签在上，控件在下，间距加大 */
.sp-row {
  margin-bottom: 14px !important;
}
.sp-row:last-child {
  margin-bottom: 0 !important;
}
.sp-row label {
  font-size: 13px !important;
  font-weight: 500 !important;
  color: var(--yl-text-2) !important;
  margin-bottom: 6px !important;
}

/* 输入框/下拉框精致化 */
.sp-row input[type="text"],
.sp-row input[type="number"],
.sp-row select,
.sp-row textarea {
  padding: 10px 14px !important;
  border: 1px solid var(--yl-border) !important;
  border-radius: 10px !important;
  font-size: 14px !important;
  background: #fff !important;
  color: var(--yl-text-1) !important;
  transition: all 0.2s !important;
}
.sp-row input:focus,
.sp-row select:focus,
.sp-row textarea:focus {
  border-color: var(--yl-primary-light) !important;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1) !important;
  background: #fff !important;
}

/* 字号调整器 */
.font-adjuster {
  display: flex !important;
  align-items: center !important;
  gap: 10px !important;
}
.font-adjuster button {
  width: 36px !important;
  height: 36px !important;
  padding: 0 !important;
  border-radius: 10px !important;
  border: 1px solid var(--yl-border) !important;
  background: #fff !important;
  color: var(--yl-text-2) !important;
  font-size: 16px !important;
  font-weight: 600 !important;
  cursor: pointer !important;
  transition: all 0.15s !important;
}
.font-adjuster button:hover {
  border-color: var(--yl-primary-light) !important;
  color: var(--yl-primary) !important;
  background: #eff6ff !important;
}
.font-adjuster .font-value {
  min-width: 40px !important;
  text-align: center !important;
  font-size: 15px !important;
  font-weight: 600 !important;
  color: var(--yl-text-1) !important;
}
.font-adjuster .font-unit {
  font-size: 12px !important;
  color: var(--yl-text-4) !important;
}

/* 按钮组 */
.sp-btn-group {
  display: flex !important;
  gap: 10px !important;
  margin-top: 8px !important;
}
.sp-btn {
  padding: 10px 20px !important;
  border-radius: 10px !important;
  font-size: 14px !important;
  font-weight: 600 !important;
  transition: all 0.2s !important;
  flex: 1 !important;
}
.sp-btn.primary {
  background: var(--yl-primary-gradient) !important;
  color: #fff !important;
  border: none !important;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25) !important;
}
.sp-btn.primary:hover {
  transform: translateY(-1px) !important;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.35) !important;
}
.sp-btn.ghost {
  background: #fff !important;
  border: 1px solid var(--yl-border) !important;
  color: var(--yl-text-2) !important;
}
.sp-btn.ghost:hover {
  border-color: var(--yl-primary-light) !important;
  color: var(--yl-primary) !important;
  background: #eff6ff !important;
}

/* 危险操作区 */
.sp-danger-zone {
  margin-top: 16px !important;
  padding-top: 16px !important;
  border-top: 1px solid var(--yl-border-light) !important;
}
.sp-danger-btn {
  width: 100% !important;
  padding: 10px !important;
  border-radius: 10px !important;
  font-size: 14px !important;
  font-weight: 500 !important;
  background: #fef2f2 !important;
  border: 1px solid #fecaca !important;
  color: #dc2626 !important;
  cursor: pointer !important;
  transition: all 0.2s !important;
}
.sp-danger-btn:hover {
  background: #fee2e2 !important;
  border-color: #fca5a5 !important;
}

/* ============================================
   市场页专属升级
   ============================================ */

/* 搜索区 */
.hero-search {
  background: var(--yl-primary-gradient) !important;
  padding: 28px 20px 24px !important;
  border-bottom: none !important;
}

.search-bar {
  max-width: 720px !important;
  background: #fff !important;
  border-radius: var(--yl-radius-lg) !important;
  border: none !important;
  box-shadow: 0 4px 20px rgba(0,0,0,0.12) !important;
  overflow: hidden !important;
}

.search-bar input {
  padding: 14px 20px !important;
  font-size: 15px !important;
  color: var(--yl-text-1) !important;
  background: transparent !important;
}

.search-bar input::placeholder {
  color: var(--yl-text-4) !important;
}

.search-suggestions {
  background: #fff !important;
  border-radius: var(--yl-radius-md) !important;
  border: 1px solid var(--yl-border) !important;
  box-shadow: var(--yl-shadow-lg) !important;
  top: calc(100% + 8px) !important;
}

/* 分类栏 */
.cat-bar {
  max-width: 1280px !important;
  padding: 16px 20px 8px !important;
  gap: 8px !important;
}

.cat-tab {
  padding: 8px 18px !important;
  border-radius: 20px !important;
  background: #fff !important;
  border: 1px solid var(--yl-border) !important;
  color: var(--yl-text-2) !important;
  font-size: 13px !important;
  font-weight: 500 !important;
  transition: all 0.2s ease !important;
}

.cat-tab:hover {
  border-color: var(--yl-primary) !important;
  color: var(--yl-primary) !important;
  background: #eff6ff !important;
}

.cat-tab.active {
  background: var(--yl-primary-gradient) !important;
  color: #fff !important;
  border-color: transparent !important;
  box-shadow: 0 2px 8px rgba(37,99,235,0.3) !important;
}

/* 技能卡片 */
.skill-card {
  background: #fff !important;
  border-radius: var(--yl-radius-lg) !important;
  border: 1px solid var(--yl-border-light) !important;
  box-shadow: var(--yl-shadow-sm) !important;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1) !important;
  overflow: hidden !important;
}

.skill-card:hover {
  transform: translateY(-4px) !important;
  box-shadow: var(--yl-shadow-blue) !important;
  border-color: transparent !important;
}

.card-cover {
  border-radius: var(--yl-radius-lg) var(--yl-radius-lg) 0 0 !important;
}

.card-title {
  font-size: 15px !important;
  font-weight: 600 !important;
  color: var(--yl-text-1) !important;
}

.card-desc {
  color: var(--yl-text-3) !important;
  font-size: 12px !important;
  line-height: 1.5 !important;
}

.card-meta,
.card-stats {
  color: var(--yl-text-4) !important;
  font-size: 11px !important;
}

.card-footer {
  border-top: 1px solid var(--yl-border-light) !important;
  padding: 10px 14px !important;
}

/* 热门卡片 */
.hot-card {
  background: #fff !important;
  border-radius: var(--yl-radius-md) !important;
  border: 1px solid var(--yl-border-light) !important;
  box-shadow: var(--yl-shadow-sm) !important;
  transition: all 0.25s ease !important;
  min-width: 190px !important;
  max-width: 190px !important;
  padding: 16px !important;
}

.hot-card:hover {
  transform: translateY(-3px) !important;
  box-shadow: var(--yl-shadow-md) !important;
  border-color: var(--yl-primary-light) !important;
}

.hc-name {
  font-size: 14px !important;
  font-weight: 600 !important;
  color: var(--yl-text-1) !important;
}

.hc-desc {
  font-size: 12px !important;
  color: var(--yl-text-3) !important;
  line-height: 1.5 !important;
}

.hc-cat {
  background: #eff6ff !important;
  color: var(--yl-primary) !important;
  padding: 3px 8px !important;
  border-radius: 6px !important;
  font-size: 11px !important;
  font-weight: 500 !important;
}

.hc-free {
  color: #10b981 !important;
  font-weight: 600 !important;
}

.hot-header h2,
.hot-header h3 {
  color: var(--yl-text-1) !important;
  font-size: 18px !important;
  font-weight: 700 !important;
}

.hot-more a {
  color: var(--yl-primary) !important;
  font-size: 13px !important;
}

/* 等级徽章 */
.level-badge {
  background: rgba(255,255,255,0.9) !important;
  color: var(--yl-primary) !important;
  border-radius: 6px !important;
  font-size: 11px !important;
  font-weight: 600 !important;
  padding: 2px 8px !important;
  backdrop-filter: blur(4px) !important;
}

.featured-badge {
  background: linear-gradient(135deg, #f59e0b, #ef4444) !important;
  color: #fff !important;
  border-radius: 6px !important;
  font-size: 11px !important;
  font-weight: 600 !important;
  padding: 2px 8px !important;
}

/* 发布按钮 */
.btn-publish {
  background: var(--yl-primary-gradient) !important;
  color: #fff !important;
  border-radius: var(--yl-radius-md) !important;
  font-weight: 600 !important;
  box-shadow: 0 2px 8px rgba(37,99,235,0.25) !important;
  transition: all 0.2s ease !important;
  border: none !important;
}

.btn-publish:hover {
  transform: translateY(-1px) !important;
  box-shadow: 0 4px 12px rgba(37,99,235,0.35) !important;
}

/* ============================================
   对话台侧边栏升级
   ============================================ */

.sidebar {
  background: #fff !important;
  border-right: 1px solid var(--yl-border-light) !important;
  box-shadow: none !important;
}

.chat-title {
  background: #fff !important;
  border-bottom: 1px solid var(--yl-border-light) !important;
  height: 52px !important;
}

.chat-title .title-text {
  font-size: 15px !important;
  font-weight: 600 !important;
  color: var(--yl-text-1) !important;
}

/* 会话列表 */
.conv-item,
.conv-list-item {
  border-radius: var(--yl-radius-sm) !important;
  margin: 2px 8px !important;
  transition: all 0.15s ease !important;
}

.conv-item:hover,
.conv-list-item:hover {
  background: #f1f5f9 !important;
}

.conv-item.active,
.conv-list-item.active {
  background: #eff6ff !important;
  color: var(--yl-primary) !important;
}

.conv-title {
  font-size: 13px !important;
  color: var(--yl-text-2) !important;
  font-weight: 500 !important;
}

.conv-item.active .conv-title,
.conv-list-item.active .conv-title {
  color: var(--yl-primary) !important;
  font-weight: 600 !important;
}

/* 消息气泡优化 */
.msg .m-body {
  border-radius: 16px !important;
  padding: 10px 14px !important;
  font-size: 14px !important;
  line-height: 1.6 !important;
}

.msg.user .m-body {
  background: var(--yl-primary-gradient) !important;
  color: #fff !important;
  border-bottom-right-radius: 4px !important;
}

.msg.assistant .m-body,
.msg.bot .m-body {
  background: #fff !important;
  color: var(--yl-text-2) !important;
  border: 1px solid var(--yl-border-light) !important;
  border-bottom-left-radius: 4px !important;
  box-shadow: 0 1px 2px rgba(0,0,0,0.03) !important;
}

/* 输入区 */
.input-area {
  background: #fff !important;
  border-top: 1px solid var(--yl-border-light) !important;
  padding: 12px 5% 16px !important;
}

.input-area textarea,
.input-area .input-box {
  border-radius: var(--yl-radius-md) !important;
  border: 1px solid var(--yl-border) !important;
  background: #f8fafc !important;
  padding: 10px 14px !important;
  font-size: 14px !important;
  transition: all 0.2s ease !important;
}

.input-area textarea:focus,
.input-area .input-box:focus {
  border-color: var(--yl-primary) !important;
  background: #fff !important;
  box-shadow: 0 0 0 3px rgba(37,99,235,0.1) !important;
  outline: none !important;
}

/* 发送按钮 */
.ic-send,
.send-btn {
  background: var(--yl-primary-gradient) !important;
  color: #fff !important;
  border-radius: 10px !important;
  width: 36px !important;
  height: 36px !important;
  box-shadow: 0 2px 8px rgba(37,99,235,0.25) !important;
  transition: all 0.2s ease !important;
  border: none !important;
}

.ic-send:hover,
.send-btn:hover {
  transform: scale(1.05) !important;
  box-shadow: 0 4px 12px rgba(37,99,235,0.35) !important;
}

/* ============================================
   社区/学术页通用卡片
   ============================================ */

.cm-post,
.post-card,
.article-card {
  background: #fff !important;
  border-radius: var(--yl-radius-md) !important;
  border: 1px solid var(--yl-border-light) !important;
  box-shadow: var(--yl-shadow-sm) !important;
  transition: all 0.2s ease !important;
  padding: 16px !important;
}

.cm-post:hover,
.post-card:hover,
.article-card:hover {
  box-shadow: var(--yl-shadow-md) !important;
  border-color: var(--yl-border) !important;
}

.cm-title {
  font-size: 15px !important;
  font-weight: 600 !important;
  color: var(--yl-text-1) !important;
}

.cm-excerpt {
  color: var(--yl-text-3) !important;
  font-size: 13px !important;
  line-height: 1.6 !important;
}

.cm-meta {
  color: var(--yl-text-4) !important;
  font-size: 12px !important;
}

.cm-tag {
  background: #eff6ff !important;
  color: var(--yl-primary) !important;
  padding: 3px 10px !important;
  border-radius: 6px !important;
  font-size: 11px !important;
  font-weight: 500 !important;
}

.community-section h2,
.community-section h3 {
  font-size: 18px !important;
  font-weight: 700 !important;
  color: var(--yl-text-1) !important;
}

/* ============================================
   空状态 & 加载
   ============================================ */

.empty,
.cm-empty {
  color: var(--yl-text-4) !important;
  padding: 40px 20px !important;
  text-align: center !important;
}

/* ============================================
   标签/徽章通用
   ============================================ */

.sb-tag,
.tag-item,
.tag {
  background: #eff6ff !important;
  color: var(--yl-primary) !important;
  border-radius: 6px !important;
  padding: 3px 10px !important;
  font-size: 12px !important;
  font-weight: 500 !important;
  border: none !important;
}

.source-badge {
  background: #f0fdf4 !important;
  color: #10b981 !important;
  border-radius: 6px !important;
  font-size: 11px !important;
  font-weight: 500 !important;
  padding: 2px 8px !important;
}

/* ============================================
   页面标题区
   ============================================ */

.page-header,
.module-title {
  font-size: 20px !important;
  font-weight: 700 !important;
  color: var(--yl-text-1) !important;
}

.module-title {
  font-size: 18px !important;
}