/* ==========================================================================
   ad-ops-agent 全站样式
   老板审美:Linear / Notion / Stripe Dashboard
   蓝主色 #3b82f6 + 16-24px 间距 + 8-12px 圆角
   Bootstrap 5 dark mode 兼容,禁用 bg-info/btn-info 等不兼容类
   ========================================================================== */

:root {
  /* 主色板 */
  --color-primary: #3b82f6;
  --color-primary-hover: #2563eb;
  --color-primary-soft: rgba(59, 130, 246, 0.1);

  /* 文本 */
  --color-text: #1f2937;
  --color-text-muted: #6b7280;  /* WCAG AA 字段标签 */
  --color-text-inverse: #f9fafb;

  /* 背景 */
  --color-bg: #ffffff;
  --color-bg-elevated: #ffffff;
  --color-bg-card: #f9fafb;
  --color-bg-hover: #f3f4f6;

  /* 边框 */
  --color-border: #e5e7eb;
  --color-border-strong: #d1d5db;

  /* 状态色(中性可访问) */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;

  /* 间距 */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;

  /* 圆角 */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;

  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);

  /* 字体 */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", "Hiragino Sans GB", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

[data-bs-theme="dark"] {
  --color-primary: #60a5fa;
  --color-primary-hover: #93c5fd;
  --color-primary-soft: rgba(96, 165, 250, 0.15);

  --color-text: #f3f4f6;
  --color-text-muted: #9ca3af;
  --color-text-inverse: #111827;

  --color-bg: #0b0d12;
  --color-bg-elevated: #11141b;
  --color-bg-card: #1a1d27;
  --color-bg-hover: #232734;

  --color-border: #2d313e;
  --color-border-strong: #3a3f50;

  --color-success: #34d399;
  --color-warning: #fbbf24;
  --color-danger: #f87171;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4), 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5), 0 4px 6px rgba(0, 0, 0, 0.3);
}

/* ==========================================================================
   全局重置
   ========================================================================== */

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family);
  font-size: 14px;
  line-height: 1.6;
  background: var(--color-bg);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}
a:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}

/* ==========================================================================
   顶部导航
   ========================================================================== */

.app-navbar {
  height: 56px;
  background: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border);
  padding: 0 var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.app-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text);
}

.app-brand-logo {
  width: 28px;
  height: 28px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 700;
}

.app-nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* dark mode toggle(纯 CSS 切换) */
.theme-toggle {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}
.theme-toggle:hover {
  background: var(--color-bg-hover);
}

/* ==========================================================================
   按钮(扩展 Bootstrap,适配 dark mode)
   ========================================================================== */

.btn-modern-primary {
  background: var(--color-primary);
  color: #fff;
  border: 1px solid var(--color-primary);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn-modern-primary:hover:not(:disabled) {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}
.btn-modern-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-modern-secondary {
  background: var(--color-bg-elevated);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn-modern-secondary:hover {
  background: var(--color-bg-hover);
  border-color: var(--color-border-strong);
}

.btn-modern-danger {
  background: transparent;
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn-modern-danger:hover {
  background: var(--color-danger);
  color: #fff;
}

.btn-modern-ghost {
  background: transparent;
  color: var(--color-text-muted);
  border: none;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.8125rem;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.btn-modern-ghost:hover {
  background: var(--color-bg-hover);
  color: var(--color-text);
}

.btn-modern-sm {
  padding: 4px 10px;
  font-size: 0.8125rem;
}

/* ==========================================================================
   卡片
   ========================================================================== */

.card-modern {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s, transform 0.2s, border-color 0.2s;
  margin-bottom: var(--space-md);
}

.card-modern-clickable {
  cursor: pointer;
}
.card-modern-clickable:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.card-modern-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-md);
}

.card-modern-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
}

.card-modern-subtitle {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* ==========================================================================
   三段式 badge(可广告 / 内部 / 禁止)
   ========================================================================== */

.badge-advertisable,
.badge-internal,
.badge-forbidden {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.2px;
}

.badge-advertisable {
  background: var(--color-success);
  color: #fff;
}

.badge-internal {
  background: var(--color-warning);
  color: #000;
}

.badge-forbidden {
  background: var(--color-danger);
  color: #fff;
}

/* 行业 tag(中性灰) */
.tag-industry {
  display: inline-block;
  padding: 2px 8px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 500;
}

/* ==========================================================================
   表格
   ========================================================================== */

.table-modern {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-bg-card);
  border-radius: var(--radius-sm);
  overflow: hidden;
  font-size: 0.875rem;
}

.table-modern thead th {
  background: var(--color-bg-elevated);
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 0.8125rem;
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.table-modern tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  vertical-align: middle;
}

.table-modern tbody tr:last-child td {
  border-bottom: none;
}

.table-modern tbody tr:hover {
  background: var(--color-bg-hover);
}

/* ==========================================================================
   空状态
   ========================================================================== */

.empty-state {
  text-align: center;
  padding: 80px 24px;
  color: var(--color-text-muted);
}

.empty-state-icon {
  font-size: 56px;
  margin-bottom: var(--space-md);
  opacity: 0.5;
  line-height: 1;
}

.empty-state-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.empty-state-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

/* ==========================================================================
   表单字段(WCAG AA 标签色)
   ========================================================================== */

.form-modern-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-muted);  /* #6b7280 满足 WCAG AA */
  margin-bottom: 6px;
}

.form-modern-input,
.form-modern-textarea,
.form-modern-select {
  width: 100%;
  background: var(--color-bg-elevated);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  font-size: 0.875rem;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-modern-input:focus,
.form-modern-textarea:focus,
.form-modern-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-soft);
}
.form-modern-textarea {
  resize: vertical;
  min-height: 80px;
}

/* ==========================================================================
   项目网格
   ========================================================================== */

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-md);
}

.project-card-name {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
  word-break: break-word;
}

.project-card-client {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.project-card-meta {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-top: var(--space-md);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.project-card-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.project-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

/* ==========================================================================
   模态框(覆盖 Bootstrap 默认样式适配 dark mode)
   ========================================================================== */

.modal-modern .modal-content {
  background: var(--color-bg-elevated);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.modal-modern .modal-header {
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-md) var(--space-lg);
}

.modal-modern .modal-title {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text);
}

.modal-modern .modal-body {
  padding: var(--space-lg);
}

.modal-modern .modal-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-md) var(--space-lg);
  gap: var(--space-sm);
}

/* ==========================================================================
   页面布局
   ========================================================================== */

.page-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-lg);
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
}

.page-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0;
}

.page-subtitle {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* ==========================================================================
   Loading / Spinner
   ========================================================================== */

.spinner-modern {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  border-radius: var(--radius-md);
}
[data-bs-theme="dark"] .loading-overlay {
  background: rgba(0, 0, 0, 0.6);
}

/* ==========================================================================
   错误提示
   ========================================================================== */

.alert-modern {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}
.alert-modern-error {
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-danger);
  border: 1px solid rgba(239, 68, 68, 0.3);
}
.alert-modern-info {
  background: var(--color-primary-soft);
  color: var(--color-primary);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

/* ==========================================================================
   Scrollbar(浅色,不刺眼)
   ========================================================================== */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--color-border-strong);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* ==========================================================================
   详情页布局
   ========================================================================== */

.app-layout {
  display: flex;
  min-height: calc(100vh - 56px);
}

.app-sidebar {
  width: 240px;
  background: var(--color-bg-elevated);
  border-right: 1px solid var(--color-border);
  padding: var(--space-md);
  flex-shrink: 0;
}

.sidebar-back {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
  margin-bottom: var(--space-md);
  cursor: pointer;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}
.sidebar-back:hover {
  background: var(--color-bg-hover);
  color: var(--color-text);
  text-decoration: none;
}

.sidebar-project-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-md);
  padding: 0 8px;
  word-break: break-word;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  background: transparent;
  text-align: left;
  width: 100%;
}
.sidebar-nav-item:hover {
  background: var(--color-bg-hover);
  color: var(--color-text);
}
.sidebar-nav-item.active {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}
.sidebar-nav-icon {
  font-size: 1rem;
  width: 18px;
  text-align: center;
}

.app-main {
  flex: 1;
  padding: var(--space-lg);
  overflow-x: auto;
}

.main-content {
  max-width: 980px;
  margin: 0 auto;
}

/* 资料列表 */
.material-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.material-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}
.material-item:hover {
  border-color: var(--color-border-strong);
}

.material-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  flex-shrink: 0;
}

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

.material-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.material-meta {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* 上传 dropzone */
.upload-dropzone {
  border: 2px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  background: var(--color-bg-card);
  margin-bottom: var(--space-md);
}
.upload-dropzone:hover,
.upload-dropzone.dragging {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
}
.upload-dropzone-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-sm);
  opacity: 0.6;
}
.upload-dropzone-text {
  font-size: 0.9375rem;
  color: var(--color-text);
  margin-bottom: 4px;
}
.upload-dropzone-hint {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* 报告区三段式大字 badge(顶部摘要) */
.report-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.report-summary-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

.report-summary-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin-bottom: 6px;
}

.report-summary-badge {
  font-size: 0.875rem;
  font-weight: 600;
}

.report-meta-row {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Tab 切换(analyze.html 三个 Tab 共享)
   ========================================================================== */

.tab-bar {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-lg);
  padding: 0;
}

.tab-button {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 10px 16px;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: -1px;
}

.tab-button:hover {
  color: var(--color-text);
}

.tab-button.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.tab-button .tab-icon {
  font-size: 1rem;
}

.tab-button .tab-count {
  font-size: 0.7rem;
  background: var(--color-bg-hover);
  color: var(--color-text-muted);
  padding: 1px 7px;
  border-radius: 999px;
  font-weight: 600;
}

.tab-button.active .tab-count {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
  animation: fadeIn 0.25s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   聊天区占位(S5 实现,S4 先放静态提示)
   ========================================================================== */

.chat-placeholder {
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
  background: var(--color-bg-card);
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
}

.chat-placeholder-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-sm);
  opacity: 0.5;
}

.chat-placeholder-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.chat-placeholder-desc {
  font-size: 0.875rem;
  line-height: 1.6;
}

/* ==========================================================================
   报告区状态条
   ========================================================================== */

.report-status-bar {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.report-status-bar .spinner-modern {
  flex-shrink: 0;
}

.report-status-bar-text {
  flex: 1;
  line-height: 1.5;
}

.report-status-bar-time {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.report-empty {
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
  background: var(--color-bg-card);
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
}

.report-empty-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-sm);
  opacity: 0.5;
}

.report-empty-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.report-empty-desc {
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: var(--space-md);
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* 分析中遮罩 */
.report-processing {
  position: relative;
  min-height: 200px;
}

/* ==========================================================================
   移动端适配
   ========================================================================== */

@media (max-width: 768px) {
  .app-layout {
    flex-direction: column;
  }
  .app-sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }
  .sidebar-nav {
    flex-direction: row;
    overflow-x: auto;
  }
  .tab-bar {
    overflow-x: auto;
  }
}

/* ==========================================================================
   对话区(S5 替代 chat-placeholder)
   ========================================================================== */

.chat-container {
  display: flex;
  flex-direction: column;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  height: calc(100vh - 56px - 240px); /* navbar 56 + 主区上下 padding + 元信息卡 */
  min-height: 480px;
  overflow: hidden;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.chat-message {
  display: flex;
  gap: var(--space-sm);
  max-width: 80%;
  animation: fadeIn 0.25s ease;
}

.chat-message.user {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.chat-message.assistant {
  align-self: flex-start;
}

.chat-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
}

.chat-message.user .chat-avatar {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.chat-bubble {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  line-height: 1.6;
  word-wrap: break-word;
  white-space: pre-wrap;
  position: relative;
}

.chat-message.user .chat-bubble {
  background: var(--color-primary);
  color: #fff;
  border-bottom-right-radius: 2px;
}

.chat-message.assistant .chat-bubble {
  background: var(--color-bg-elevated);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-bottom-left-radius: 2px;
}

.chat-bubble-meta {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  margin-top: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.chat-message.user .chat-bubble-meta {
  justify-content: flex-end;
}

/* 对话消息里的三段式 badge(在 assistant 回复里识别关键字) */
.chat-bubble .chat-section-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 600;
  margin: 2px 4px 2px 0;
  letter-spacing: 0.2px;
  vertical-align: middle;
}
.chat-section-badge-advertisable {
  background: var(--color-success);
  color: #fff;
}
.chat-section-badge-internal {
  background: var(--color-warning);
  color: #000;
}
.chat-section-badge-forbidden {
  background: var(--color-danger);
  color: #fff;
}

/* LLM 思考中的等待气泡 */
.chat-message.assistant.thinking .chat-bubble {
  opacity: 0.7;
  font-style: italic;
}

/* 输入区 */
.chat-input-area {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
}

.chat-input-area textarea {
  flex: 1;
  resize: none;
  min-height: 44px;
  max-height: 160px;
  background: var(--color-bg-card);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 0.9375rem;
  font-family: inherit;
  line-height: 1.5;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.chat-input-area textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-soft);
}
.chat-input-area textarea:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.chat-send-btn {
  background: var(--color-primary);
  color: #fff;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-sm);
  padding: 0 18px;
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}
.chat-send-btn:hover:not(:disabled) {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}
.chat-send-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.chat-hint {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  padding: 4px var(--space-md) var(--space-sm);
  background: var(--color-bg-elevated);
  text-align: right;
  border-top: 1px solid transparent;
}

/* 移动端:消息全宽,输入区固定底部 */
@media (max-width: 768px) {
  .chat-container {
    height: calc(100vh - 56px - 320px);
    min-height: 360px;
  }
  .chat-message {
    max-width: 92%;
  }
  .chat-input-area {
    padding: var(--space-sm);
  }
}

/* ====================================================================
   S6 · M1 项目分析进度卡
   沿用 S4 卡片化 + 蓝主色 + dark mode 兼容
   ==================================================================== */

.progress-card {
  background: linear-gradient(135deg, var(--color-bg-card) 0%, var(--color-bg) 100%);
  margin-bottom: var(--space-lg);
  padding: var(--space-lg);
}

.progress-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-sm);
  gap: var(--space-sm);
}

.progress-card-title {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text);
}

.progress-pct-badge {
  font-size: 0.8125rem !important;
  font-weight: 600;
  padding: 4px 10px !important;
  border-radius: 6px;
  background: var(--color-primary);
  color: #fff;
  white-space: nowrap;
}

.progress-bar-container {
  background: var(--color-bg);
  height: 12px;
  border-radius: 6px;
  overflow: hidden;
  margin: 16px 0;
  border: 1px solid var(--color-border);
}

.progress-bar-fill {
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-success) 100%);
  height: 100%;
  transition: width 0.5s ease-out;
  border-radius: 6px;
}

.progress-subtasks {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 16px 0;
}

.subtask {
  padding: 12px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--color-text);
  transition: border-color 0.2s, background 0.2s;
}

.subtask:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
}

.subtask-id {
  font-weight: 600;
  color: var(--color-primary);
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.75rem;
}

.subtask-name {
  flex: 1;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.subtask-status {
  font-size: 0.6875rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.subtask-icon-done     { color: var(--color-success); font-size: 1rem; }
.subtask-icon-progress { color: var(--color-warning); font-size: 1rem; }
.subtask-icon-pending  { color: var(--color-text-muted); font-size: 1rem; }

.progress-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.progress-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

.progress-next-action {
  margin-top: var(--space-md);
  padding: 10px 12px;
  background: var(--color-primary-soft);
  border-left: 3px solid var(--color-primary);
  border-radius: 6px;
  color: var(--color-text);
  font-size: 0.875rem;
  line-height: 1.5;
}

@media (max-width: 768px) {
  .progress-subtasks {
    grid-template-columns: repeat(2, 1fr);
  }
  .progress-meta {
    gap: 8px;
    font-size: 0.75rem;
  }
}

/* ==========================================================================
   M2 S4:相关知识区(report tab 底部)
   基于项目行业筛 → 3 张小卡 + 跳转知识库
   ========================================================================== */

.related-kb-section {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.related-kb-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-md);
  gap: var(--space-md);
  flex-wrap: wrap;
}

.related-kb-header h4 {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
}

.related-kb-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-md);
}

.kb-mini-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-md);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  display: block;
  min-height: 110px;
}

.kb-mini-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.kb-mini-badges {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.badge-kb-media,
.badge-kb-dimension {
  display: inline-block;
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 500;
  line-height: 1.4;
}

.badge-kb-media {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.badge-kb-dimension {
  background: var(--color-bg-hover);
  color: var(--color-text-muted);
}

.kb-mini-title {
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: 4px;
  color: var(--color-text);
  line-height: 1.4;
  /* 2 行截断 */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.kb-mini-preview {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  /* 2 行截断 */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@media (max-width: 768px) {
  .related-kb-list {
    grid-template-columns: 1fr;
  }
  .related-kb-header {
    flex-direction: column;
    align-items: flex-start;
  }
}