:root {
  --color-primary: #1E88E5;
  --color-primary-dark: #1565C0;
  --color-primary-deep: #0D47A1;
  --color-primary-light: #E3F2FD;
  --color-primary-50: #F3F9FD;
  --color-primary-100: #BBDEFB;

  --color-text: #1F2A37;
  --color-text-secondary: #4B5563;
  --color-text-muted: #9CA3AF;
  --color-text-faint: #B0B7C0;

  --color-bg: #F5F7FA;
  --color-surface: #FFFFFF;
  --color-border: #E5E7EB;
  --color-border-light: #F0F2F5;
  --color-border-blue: #BBDEFB;

  --color-success: #2E7D32;
  --color-success-bg: #E8F5E9;
  --color-success-border: #A5D6A7;
  --color-warning: #ED6C02;
  --color-warning-bg: #FFF3E0;
  --color-warning-border: #FFCC80;
  --color-danger: #D32F2F;

  --color-tag-1-bg: #E3F2FD;  --color-tag-1-text: #1565C0;  /* 算法 */
  --color-tag-2-bg: #F3E5F5;  --color-tag-2-text: #6A1B9A;  /* 数据 */
  --color-tag-3-bg: #E8F5E9;  --color-tag-3-text: #2E7D32;  /* 应用 */
  --color-tag-4-bg: #FFF3E0;  --color-tag-4-text: #E65100;  /* 算力 */

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 2px 6px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 4px 16px rgba(15, 23, 42, 0.08);
  --shadow-modal: 0 24px 64px rgba(15, 23, 42, 0.24);

  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 10px;

  --sidebar-w: 200px;
  --header-h: 60px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei",
    "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "tnum";
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: transparent; }
input, select { font-family: inherit; }

/* ============== Top Header ============== */
.app-header {
  height: var(--header-h);
  background: white;
  border-bottom: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-sm);
}
.brand { display: flex; align-items: center; gap: 12px; min-width: var(--sidebar-w); }
.brand-logo {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: white; font-size: 18px; position: relative; overflow: hidden;
}
.brand-logo::after {
  content: '';
  position: absolute; left: 0; top: 0; right: 0; bottom: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(255,255,255,0.2));
  pointer-events: none;
}
.brand-text h1 { font-size: 17px; font-weight: 600; color: var(--color-text); letter-spacing: -0.3px; line-height: 1.2; }
.brand-text p { font-size: 11px; color: var(--color-text-muted); margin-top: 2px; }

.top-nav { flex: 1; display: flex; justify-content: center; gap: 48px; }
.top-nav a {
  font-size: 14px; color: var(--color-text-secondary); padding: 0 4px;
  position: relative; height: var(--header-h);
  display: flex; align-items: center; transition: color 0.15s;
}
.top-nav a.active { color: var(--color-primary); font-weight: 500; }
.top-nav a.active::after {
  content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 28px; height: 3px; background: var(--color-primary); border-radius: 2px 2px 0 0;
}

.user-zone { display: flex; align-items: center; gap: 10px; color: var(--color-text-secondary); font-size: 13px; }
.user-avatar {
  width: 32px; height: 32px; background: var(--color-primary); color: white;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 500; box-shadow: 0 0 0 3px var(--color-primary-light);
}

/* ============== Body Layout ============== */
.app-body { display: grid; grid-template-columns: var(--sidebar-w) 1fr; min-height: calc(100vh - var(--header-h)); }

/* ============== Sidebar ============== */
.sidebar { background: white; border-right: 1px solid var(--color-border-light); padding: 16px 0; }
.nav-group { margin-bottom: 8px; }
.nav-group.has-active { background: var(--color-primary-50); border-left: 3px solid var(--color-primary); }
.nav-item {
  display: flex; align-items: center; gap: 12px; padding: 12px 24px;
  cursor: pointer; color: var(--color-text-secondary); font-size: 14px;
  transition: all 0.15s; position: relative;
}
.nav-item:hover { background: var(--color-primary-50); color: var(--color-primary); }
.nav-item .icon { width: 20px; height: 20px; display: flex; align-items: center; justify-content: center; color: var(--color-text-muted); flex-shrink: 0; }
.nav-item:hover .icon, .nav-item.active .icon { color: var(--color-primary); }
.nav-item.active { background: var(--color-primary-50); color: var(--color-primary); font-weight: 500; }
.nav-item .label-stack { flex: 1; display: flex; flex-direction: column; line-height: 1.4; }
.nav-item .label-main { font-size: 14px; }
.nav-item .label-sub { font-size: 11px; color: var(--color-text-muted); margin-top: 1px; }
.nav-item.active .label-sub { color: var(--color-primary); opacity: 0.7; }
.nav-item .arrow { color: var(--color-text-muted); font-size: 12px; transition: transform 0.2s; }
.nav-item.expanded .arrow { transform: rotate(180deg); }
.badge-dot {
  background: var(--color-danger); color: white; font-size: 11px; font-weight: 600;
  border-radius: 999px; padding: 1px 7px; min-width: 18px; text-align: center;
}
.nav-badge {
  background: var(--color-primary); color: white; font-size: 11px; font-weight: 600;
  border-radius: 999px; padding: 1px 7px; min-width: 18px; text-align: center;
}
.sub-nav { padding: 0 24px 8px 56px; display: none; }
.nav-item.expanded + .sub-nav { display: block; }
.sub-nav a { display: block; font-size: 13px; color: var(--color-text-secondary); padding: 6px 0; transition: color 0.15s; }
.sub-nav a:hover { color: var(--color-primary); }

/* ============== Main ============== */
.main { padding: 24px 32px 40px; overflow-x: auto; }
.breadcrumb { font-size: 13px; color: var(--color-primary); margin-bottom: 8px; }
.page-title { font-size: 24px; font-weight: 600; color: var(--color-text); letter-spacing: -0.5px; margin-bottom: 8px; }
.page-desc { font-size: 13px; color: var(--color-text-muted); margin-bottom: 20px; max-width: 860px; }
.divider { height: 1px; background: var(--color-border-light); margin-bottom: 20px; }

/* ============== Stats ============== */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: white; border-radius: var(--radius-lg); padding: 20px 24px;
  position: relative; box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light); overflow: hidden;
}
.stat-card::before {
  content: ''; position: absolute; top: 0; left: 0;
  width: 32px; height: 3px; background: var(--color-primary); border-radius: 0 0 3px 0;
}
.stat-card.warn::before { background: var(--color-warning); }
.stat-card.warn .stat-num { color: var(--color-warning); }
.stat-card.ok::before { background: var(--color-success); }
.stat-card.ok .stat-num { color: var(--color-success); }
.stat-num {
  font-size: 36px; font-weight: 700; color: var(--color-primary);
  line-height: 1; letter-spacing: -1px; font-variant-numeric: tabular-nums; margin-bottom: 8px;
}
.stat-label { font-size: 13px; color: var(--color-text-secondary); }

/* ============== Tabs ============== */
.tabs { display: flex; gap: 24px; border-bottom: 1px solid var(--color-border-light); margin-bottom: 16px; }
.tab {
  padding: 10px 2px; font-size: 14px; color: var(--color-text-secondary);
  position: relative; cursor: pointer; transition: color 0.15s;
}
.tab:hover { color: var(--color-primary); }
.tab.active { color: var(--color-primary); font-weight: 500; }
.tab.active::after {
  content: ''; position: absolute; bottom: -1px; left: 0; right: 0;
  height: 2px; background: var(--color-primary); border-radius: 2px 2px 0 0;
}
.tab .cnt { font-size: 12px; color: var(--color-text-muted); margin-left: 4px; }
.tab.active .cnt { color: var(--color-primary); }

/* ============== Filter Bar ============== */
.filter-bar {
  background: white; border-radius: var(--radius-lg); padding: 16px; margin-bottom: 16px;
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr auto; gap: 12px;
  align-items: center; box-shadow: var(--shadow-sm); border: 1px solid var(--color-border-light);
}
.search-input, .filter-select {
  height: 36px; padding: 0 12px; border: 1px solid var(--color-border);
  border-radius: var(--radius-md); font-size: 13px; background: white;
  outline: none; transition: all 0.15s; width: 100%; color: var(--color-text);
}
.search-input:focus, .filter-select:focus {
  border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(30, 136, 229, 0.12);
}
.search-input::placeholder { color: var(--color-text-muted); }
.filter-select {
  appearance: none;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='none' stroke='%239CA3AF' stroke-width='1.5' d='M1 1.5L6 6.5L11 1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center; padding-right: 32px;
}
.count { font-size: 13px; color: var(--color-text-secondary); white-space: nowrap; }
.count .num { color: var(--color-primary); font-weight: 600; }

/* ============== Table ============== */
.table-wrap {
  background: white; border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-sm); border: 1px solid var(--color-border-light);
}
table { width: 100%; border-collapse: collapse; font-size: 13px; }
thead th {
  background: #F8FAFC; color: var(--color-text-secondary); font-weight: 500;
  text-align: left; padding: 14px 16px; font-size: 13px;
  border-bottom: 1px solid var(--color-border-light); position: sticky; top: 0; z-index: 1;
}
thead th.col-num { width: 56px; text-align: center; }
thead th.col-score { width: 92px; }
thead th.col-cat { width: 260px; }
thead th.col-action { width: 110px; text-align: center; }
tbody td { padding: 14px 16px; border-bottom: 1px solid var(--color-border-light); color: var(--color-text); vertical-align: top; }
tbody td.col-num { text-align: center; color: var(--color-text-muted); font-variant-numeric: tabular-nums; }
tbody tr { transition: background 0.1s; }
tbody tr:hover { background: var(--color-primary-50); }
tbody tr:last-child td { border-bottom: 0; }
tbody tr.is-done { opacity: 0.55; }

td.col-name { font-weight: 500; color: var(--color-text); min-width: 150px; }
td.col-name .full-name { display: block; font-weight: 400; color: var(--color-text-muted); font-size: 12px; margin-top: 2px; }
.link-name {
  color: var(--color-primary); cursor: pointer; border-bottom: 1px dashed var(--color-primary-100);
  transition: all 0.15s;
}
.link-name:hover { border-bottom-style: solid; }

/* 推荐分值 */
.score-badge {
  display: inline-flex; align-items: baseline; gap: 2px;
  padding: 3px 10px; border-radius: var(--radius-sm);
  font-weight: 700; font-variant-numeric: tabular-nums; font-size: 15px;
}
.score-badge .unit { font-size: 11px; font-weight: 400; opacity: 0.7; }
.score-badge.s9 { background: #E8F5E9; color: #2E7D32; }
.score-badge.s7 { background: #FFF3E0; color: #E65100; }
.score-badge.s5 { background: #E3F2FD; color: #1565C0; }
.score-badge.s3 { background: #F5F5F5; color: #757575; }
.score-bar { height: 3px; background: var(--color-border-light); border-radius: 2px; margin-top: 6px; overflow: hidden; }
.score-bar > i { display: block; height: 100%; border-radius: 2px; }
.score-badge.s9 + .score-bar > i { background: #2E7D32; }
.score-badge.s7 + .score-bar > i { background: #E65100; }
.score-badge.s5 + .score-bar > i { background: #1565C0; }
.score-badge.s3 + .score-bar > i { background: #BDBDBD; }

/* 发现信息 */
td.col-info { min-width: 300px; }
.info-title {
  color: var(--color-text); font-weight: 500; cursor: pointer;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  transition: color 0.15s;
}
.info-title:hover { color: var(--color-primary); }
.info-summary {
  color: var(--color-text-secondary); font-size: 12px; margin-top: 4px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.info-more { color: var(--color-primary); font-size: 12px; margin-top: 4px; cursor: pointer; }
.info-more:hover { text-decoration: underline; }

/* 产业链分类（三层一列） */
td.col-cat .cat-chain { display: flex; align-items: center; flex-wrap: wrap; gap: 2px; }
td.col-cat .cat-tag {
  display: inline-flex; align-items: center; padding: 2px 8px; border-radius: 4px;
  font-size: 12px; font-weight: 500; background: var(--color-tag-1-bg); color: var(--color-tag-1-text);
}
td.col-cat .cat-tag.lv1 { background: var(--color-tag-1-bg); color: var(--color-tag-1-text); }
td.col-cat .cat-tag.lv2 { background: var(--color-tag-2-bg); color: var(--color-tag-2-text); }
td.col-cat .cat-tag.lv3 { background: var(--color-tag-3-bg); color: var(--color-tag-3-text); }
td.col-cat .cat-tag.lv4 { background: var(--color-tag-4-bg); color: var(--color-tag-4-text); }
td.col-cat .arrow-mark { color: var(--color-text-faint); font-size: 11px; }
.cat-reason { font-size: 11px; color: var(--color-text-muted); margin-top: 6px; line-height: 1.5; }

/* 操作列 */
td.col-action { text-align: center; white-space: nowrap; }
.btn-confirm {
  padding: 6px 14px; background: var(--color-primary); color: white;
  border-radius: var(--radius-md); font-size: 13px; font-weight: 500;
  transition: all 0.15s; box-shadow: 0 1px 3px rgba(30, 136, 229, 0.3);
}
.btn-confirm:hover { background: var(--color-primary-dark); transform: translateY(-1px); box-shadow: 0 3px 8px rgba(30, 136, 229, 0.4); }
.btn-confirm:active { transform: translateY(0); }
.btn-done {
  padding: 6px 14px; background: var(--color-success-bg); color: var(--color-success);
  border: 1px solid var(--color-success-border); border-radius: var(--radius-md);
  font-size: 13px; font-weight: 500; cursor: default;
}

/* 分页 */
.pager {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 16px; background: white; border-top: 1px solid var(--color-border-light);
  font-size: 13px; color: var(--color-text-secondary);
}
.pager .pager-info { color: var(--color-text-muted); }
.pager .pager-controls { display: flex; gap: 4px; }
.pager .pager-controls button {
  min-width: 32px; height: 32px; padding: 0 8px; border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); font-size: 13px; color: var(--color-text-secondary);
  background: white; transition: all 0.15s;
}
.pager .pager-controls button:hover { border-color: var(--color-primary); color: var(--color-primary); }
.pager .pager-controls button.active { background: var(--color-primary); color: white; border-color: var(--color-primary); }
.pager .pager-controls button:disabled { opacity: 0.4; cursor: not-allowed; }

/* ============== Modal ============== */
.modal-mask {
  position: fixed; inset: 0; background: rgba(15, 23, 42, 0.45);
  display: flex; align-items: center; justify-content: center; z-index: 1000;
  opacity: 0; pointer-events: none; transition: opacity 0.2s;
  backdrop-filter: blur(2px);
}
.modal-mask.show { opacity: 1; pointer-events: auto; }
.modal {
  background: white; border-radius: var(--radius-lg); width: min(680px, calc(100vw - 48px));
  max-height: calc(100vh - 96px); display: flex; flex-direction: column;
  box-shadow: var(--shadow-modal); transform: translateY(12px) scale(0.98);
  transition: transform 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}
.modal-mask.show .modal { transform: translateY(0) scale(1); }
.modal-head {
  padding: 20px 24px 16px; border-bottom: 1px solid var(--color-border-light);
  display: flex; align-items: flex-start; gap: 12px;
}
.modal-head .mh-main { flex: 1; min-width: 0; }
.modal-eyebrow { font-size: 12px; color: var(--color-primary); margin-bottom: 4px; }
.modal-title { font-size: 18px; font-weight: 600; color: var(--color-text); line-height: 1.4; }
.modal-sub { font-size: 12px; color: var(--color-text-muted); margin-top: 4px; }
.modal-close {
  width: 32px; height: 32px; border-radius: var(--radius-md); color: var(--color-text-muted);
  font-size: 20px; line-height: 1; flex-shrink: 0; transition: all 0.15s;
}
.modal-close:hover { background: var(--color-bg); color: var(--color-text); }
.modal-body { padding: 20px 24px 24px; overflow-y: auto; }
.modal-foot {
  padding: 14px 24px; border-top: 1px solid var(--color-border-light);
  display: flex; justify-content: flex-end; gap: 10px;
}
.btn-ghost {
  padding: 8px 18px; border: 1px solid var(--color-border); border-radius: var(--radius-md);
  font-size: 13px; color: var(--color-text-secondary); background: white; transition: all 0.15s;
}
.btn-ghost:hover { border-color: var(--color-primary); color: var(--color-primary); }

/* Modal 内容块 */
.m-block { margin-bottom: 20px; }
.m-block:last-child { margin-bottom: 0; }
.m-label {
  font-size: 12px; color: var(--color-text-muted); margin-bottom: 8px;
  display: flex; align-items: center; gap: 6px;
}
.m-label::before { content: ''; width: 3px; height: 12px; background: var(--color-primary); border-radius: 2px; }
.m-text { font-size: 14px; color: var(--color-text); line-height: 1.8; }
.m-meta {
  background: var(--color-bg); border-radius: var(--radius-md); padding: 14px 16px;
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 20px;
}
.m-meta .mm-item .k { font-size: 12px; color: var(--color-text-muted); margin-bottom: 2px; }
.m-meta .mm-item .v { font-size: 13px; color: var(--color-text); font-weight: 500; }

/* Toast */
.toast {
  position: fixed; bottom: 32px; left: 50%; transform: translateX(-50%) translateY(16px);
  background: var(--color-text); color: white; padding: 12px 24px; border-radius: var(--radius-md);
  font-size: 14px; z-index: 2000; opacity: 0; pointer-events: none;
  transition: all 0.24s; box-shadow: var(--shadow-lg);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ============== Responsive ============== */
@media (max-width: 1300px) {
  .filter-bar { grid-template-columns: 1fr 1fr 1fr; }
  .count { grid-column: span 3; text-align: right; }
}
@media (max-width: 900px) {
  .app-body { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .top-nav { display: none; }
  .main { padding: 16px; }
  .stats { grid-template-columns: 1fr; }
  .filter-bar { grid-template-columns: 1fr 1fr; }
  .count { grid-column: span 2; }
  .stat-num { font-size: 28px; }
  .m-meta { grid-template-columns: 1fr; }
}