:root {
  color-scheme: light;
  --bg: #f4f6fa;
  --surface: #ffffff;
  --surface-2: #f7f9fc;
  --surface-3: #edf2f8;
  --border: #dce3ec;
  --border-strong: #bcc9d8;
  --text: #182234;
  --muted: #5f6f84;
  --subtle: #8491a3;
  --blue: #2868d8;
  --blue-dark: #174ea6;
  --blue-soft: #eaf2ff;
  --cyan: #087f8c;
  --cyan-soft: #e8f7f7;
  --red: #c73a3a;
  --red-soft: #fff0ef;
  --orange: #b96718;
  --orange-soft: #fff5e8;
  --green: #247b55;
  --green-soft: #eaf7f0;
  --purple: #6750a4;
  --purple-soft: #f1edfb;
  --shadow: 0 18px 45px rgba(31, 55, 86, 0.09);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.55;
}
button, input, select { font: inherit; }
button, a, input, select { -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible { outline: 3px solid rgba(40,104,216,.28); outline-offset: 2px; }
button { color: inherit; }

.site-nav {
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 max(24px, calc((100% - 1440px) / 2));
  background: rgba(255,255,255,.95);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(14px);
}
.site-brand-wrap { position: relative; display: flex; align-items: center; gap: 10px; }
.site-brand { display: flex; align-items: center; color: var(--text); }
.site-brand span:last-child, .nav-current { display: flex; flex-direction: column; }
.site-brand b, .nav-current span { font-size: 13px; }
.site-brand small, .nav-current small { color: var(--subtle); font-size: 10px; }
.brand-switch { position: relative; width: 42px; height: 42px; padding: 3px; border: 1px solid rgba(199,58,58,.35); border-radius: 12px; background: #fff; cursor: pointer; box-shadow: 0 5px 16px rgba(31,55,86,.10); transition: transform .18s ease, border-color .18s ease; }
.brand-switch:hover, .brand-switch[aria-expanded="true"] { transform: translateY(-1px); border-color: var(--red); }
.brand-switch::after { content: ""; position: absolute; right: -4px; bottom: -3px; width: 13px; height: 13px; border: 1px solid #e4a9a9; border-radius: 50%; background: #fff; }
.brand-switch::before { content: ""; position: absolute; right: 0; bottom: 1px; z-index: 1; border-left: 3px solid transparent; border-right: 3px solid transparent; border-top: 4px solid var(--red); }
.brand-mark { width: 34px; height: 34px; display: block; object-fit: cover; border-radius: 9px; background: #0b0c0f; }
.page-menu { display: none; position: absolute; top: 50px; left: 0; z-index: 80; width: min(310px, calc(100vw - 24px)); max-height: calc(100vh - 76px); overflow: auto; padding: 10px; border: 1px solid var(--border); border-radius: 14px; background: rgba(255,255,255,.99); box-shadow: 0 20px 55px rgba(31,55,86,.18); }
.page-menu.open { display: block; }
.page-menu-title { padding: 5px 7px 8px; color: var(--subtle); font-size: 9px; letter-spacing: .8px; text-transform: uppercase; }
.page-option { display: grid; grid-template-columns: 34px minmax(0,1fr) auto; align-items: center; gap: 9px; padding: 8px; border: 1px solid transparent; border-radius: 10px; color: var(--text); text-decoration: none; }
.page-option:hover, .page-option.current { border-color: #c9d8ea; background: var(--blue-soft); }
.page-option img { width: 34px; height: 34px; border-radius: 8px; object-fit: cover; }
.page-option strong, .page-option small { display: block; }
.page-option strong { font-size: 11px; }
.page-option small { margin-top: 2px; color: var(--subtle); font-size: 9px; }
.page-check { color: var(--red); font-weight: 800; }
.nav-current { text-align: right; }
.nav-tools { display: flex; align-items: center; gap: 14px; }
.language-switch { display: inline-flex; gap: 2px; padding: 3px; border: 1px solid var(--border); border-radius: 9px; background: var(--surface-2); }
.language-switch a { min-width: 38px; padding: 5px 8px; border-radius: 6px; color: var(--muted); font-size: 10px; font-weight: 700; text-align: center; text-decoration: none; }
.language-switch a:hover, .language-switch a.active { background: #fff; color: var(--blue-dark); box-shadow: 0 2px 7px rgba(31,55,86,.09); }

.app-shell { width: min(1440px, calc(100% - 40px)); margin: 0 auto; padding: 28px 0 36px; }
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 32px;
  align-items: end;
  padding: 38px 40px;
  border: 1px solid #cfd9e6;
  border-radius: 26px;
  background: linear-gradient(120deg, #ffffff 0%, #f3f7fd 68%, #fdf4f3 100%);
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
}
.hero::after {
  content: "";
  position: absolute;
  width: 280px;
  height: 280px;
  right: -85px;
  top: -145px;
  border: 1px solid rgba(199,58,58,.18);
  border-radius: 50%;
  box-shadow: 0 0 0 36px rgba(40,104,216,.035), 0 0 0 72px rgba(199,58,58,.025);
}
.hero h1 { margin: 6px 0 12px; max-width: 900px; font-size: clamp(30px, 4vw, 52px); line-height: 1.12; letter-spacing: -.04em; }
.hero-copy { margin: 0; max-width: 900px; color: var(--muted); font-size: 16px; }
.hero-actions { position: relative; z-index: 1; display: flex; gap: 10px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.hero-meta span { padding: 5px 9px; border: 1px solid #d6e0eb; border-radius: 999px; background: rgba(255,255,255,.8); color: var(--muted); font-size: 11px; }
.eyebrow { margin: 0 0 6px; color: var(--red); font-size: 11px; font-weight: 750; letter-spacing: .13em; text-transform: uppercase; }

.button {
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  padding: 10px 15px;
  background: #fff;
  cursor: pointer;
  transition: transform .18s ease, background .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.button:hover { transform: translateY(-1px); border-color: #8ba8cc; box-shadow: 0 6px 18px rgba(37,78,130,.10); }
.button.primary { background: var(--blue); border-color: var(--blue); color: #fff; font-weight: 700; }
.button.primary:hover { background: var(--blue-dark); }
.button.ghost { color: #47586f; }
.button.small { padding: 7px 11px; font-size: 12px; }
.button:disabled { opacity: .45; cursor: not-allowed; transform: none; box-shadow: none; }

.metrics { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; margin: 16px 0; }
.metrics article { padding: 18px 20px; border: 1px solid var(--border); border-radius: 16px; background: var(--surface); box-shadow: 0 6px 20px rgba(31,55,86,.04); }
.metrics span, .metrics small { display: block; color: var(--muted); font-size: 12px; }
.metrics strong { display: block; margin: 3px 0 0; font-size: 26px; letter-spacing: -.03em; }
.metrics small { margin-top: 3px; color: var(--subtle); }
.progress-metric i { display: block; height: 5px; margin-top: 10px; border-radius: 99px; background: #e8edf4; overflow: hidden; }
.progress-metric i b { display: block; width: 0; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--red), var(--blue)); transition: width .35s ease; }

.pipeline-card, .card { border: 1px solid var(--border); border-radius: 20px; background: var(--surface); box-shadow: 0 10px 30px rgba(31,55,86,.055); }
.pipeline-card { padding: 24px; }
.section-heading, .inspector-head { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.section-heading.compact { margin-bottom: 13px; }
h2 { margin: 0; font-size: 19px; letter-spacing: -.015em; }
.segmented, .format-tabs, .product-tabs, .layer-tabs { display: flex; gap: 3px; padding: 4px; border: 1px solid var(--border); background: var(--surface-2); border-radius: 12px; }
.mode-button, .format-button, .product-button, .layer-button { border: 0; border-radius: 8px; padding: 7px 12px; background: transparent; color: var(--muted); cursor: pointer; }
.mode-button.active, .format-button.active, .product-button.active, .layer-button.active { background: #fff; color: var(--text); box-shadow: 0 2px 8px rgba(31,55,86,.09); }

.pipeline { display: grid; grid-template-columns: 1fr 24px 1fr 24px 1fr 24px 1fr 24px 1fr 24px 1fr; align-items: center; margin-top: 22px; }
.stage, .branch { min-width: 0; border: 1px solid var(--border); border-radius: 15px; background: var(--surface-2); text-align: left; cursor: pointer; transition: border-color .18s ease, transform .18s ease, background .18s ease; }
.stage { padding: 14px; }
.stage:hover, .branch:hover { transform: translateY(-2px); border-color: #9fb1c7; }
.stage.active, .branch.active { border-color: var(--blue); background: var(--blue-soft); box-shadow: inset 0 0 0 1px rgba(40,104,216,.1); }
.stage span { display: block; color: var(--blue); font-size: 11px; font-weight: 750; letter-spacing: .1em; }
.stage b, .stage small { display: block; }
.stage b { margin-top: 5px; font-size: 14px; }
.stage small { color: var(--muted); margin-top: 3px; }
.pipeline > i { height: 1px; background: #b6c5d7; position: relative; }
.pipeline > i::after { content: ""; position: absolute; right: 0; top: -3px; width: 7px; height: 7px; border-top: 1px solid var(--blue); border-right: 1px solid var(--blue); transform: rotate(45deg); }
.pipeline.running > i::before { content: ""; position: absolute; width: 8px; height: 8px; border-radius: 50%; background: var(--red); top: -3.5px; animation: packet 1.2s linear infinite; }
@keyframes packet { from { left: 0; opacity: 0; } 20%, 80% { opacity: 1; } to { left: calc(100% - 8px); opacity: 0; } }
.source-answer { display: grid; grid-template-columns: auto 1fr 1fr; gap: 12px; align-items: start; margin-top: 18px; padding: 14px 16px; border: 1px solid #bfe0df; border-radius: 13px; background: var(--cyan-soft); color: #3e666b; font-size: 11px; }
.source-answer > b { color: var(--cyan); white-space: nowrap; }
.source-answer span { padding-left: 12px; border-left: 1px solid #bfe0df; }
.source-answer strong { color: var(--text); }
.editor-actions, .quality-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.branch-line { display: flex; align-items: center; gap: 14px; margin: 20px 0 13px; color: var(--subtle); font-size: 11px; }
.branch-line::before, .branch-line::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.branches { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.branch { padding: 16px; }
.branch strong, .branch p, .branch small { display: block; }
.branch strong { margin: 11px 0 2px; font-size: 22px; }
.branch p { margin: 0 0 4px; font-size: 13px; }
.branch small { color: var(--muted); }
.branch-tag { display: inline-block; border-radius: 999px; padding: 4px 8px; font-size: 10px; color: var(--cyan); background: var(--cyan-soft); }
.warehouse-branch .branch-tag { color: var(--orange); background: var(--orange-soft); }

.serving-route { display: grid; grid-template-columns: minmax(112px,1fr) 18px minmax(112px,1fr) 18px minmax(112px,1fr) 18px minmax(112px,1fr) 18px minmax(112px,1fr) 18px minmax(112px,1fr) 18px minmax(112px,1fr); align-items: center; gap: 4px; margin-top: 18px; padding: 14px; border: 1px solid #d6e0eb; border-radius: 16px; background: linear-gradient(90deg, #f7fbff, #fffaf4); overflow-x: auto; }
.route-node { min-width: 112px; min-height: 92px; padding: 11px; border: 1px solid var(--border); border-radius: 12px; background: #fff; text-align: left; cursor: pointer; transition: .18s ease; }
.route-node:hover, .route-node.active { transform: translateY(-2px); border-color: var(--blue); background: var(--blue-soft); }
.route-node span, .route-node b, .route-node small { display: block; }
.route-node span { color: var(--blue); font-size: 9px; font-weight: 750; letter-spacing: .08em; }
.route-node b { margin: 4px 0 2px; font-size: 11px; }
.route-node small { color: var(--muted); font-size: 9px; }
.serving-route > i { height: 1px; background: var(--border-strong); position: relative; }
.serving-route > i::after { content: ""; position: absolute; right: 0; top: -3px; width: 7px; height: 7px; border-top: 1px solid var(--blue); border-right: 1px solid var(--blue); transform: rotate(45deg); }
.serving-route.running > i::before { content: ""; position: absolute; width: 7px; height: 7px; top: -3px; border-radius: 50%; background: var(--red); animation: packet 1.2s linear infinite; }
.serving-explanation { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 10px; }
.serving-explanation article { padding: 12px 14px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface-2); }
.serving-explanation b { color: var(--cyan); font-size: 11px; }
.serving-explanation p { margin: 4px 0 0; color: var(--muted); font-size: 10px; }

.workspace, .learning-grid { display: grid; grid-template-columns: 1.12fr .88fr; gap: 16px; margin-top: 16px; }
.workspace > *, .learning-grid > *, .section-heading > *, .inspector-head > * { min-width: 0; }
.card { min-width: 0; padding: 22px; }
.table-wrap { overflow: auto; border: 1px solid var(--border); border-radius: 13px; }
table { width: 100%; border-collapse: collapse; min-width: 760px; }
th, td { padding: 9px 10px; border-bottom: 1px solid var(--border); text-align: left; font-size: 12px; }
th { position: sticky; top: 0; z-index: 1; background: #f0f4f9; color: var(--muted); font-weight: 650; }
tr:last-child td { border-bottom: 0; }
td input, td select { width: 100%; min-width: 74px; border: 1px solid transparent; border-radius: 7px; padding: 6px 7px; background: transparent; color: var(--text); outline: none; }
td input:focus, td select:focus { border-color: var(--blue); background: #fff; }
td select option { background: #fff; }
.row-actions { display: flex; align-items: center; gap: 2px; white-space: nowrap; }
.row-move, .row-delete { width: 24px; height: 24px; padding: 0; border: 0; border-radius: 6px; background: transparent; color: var(--subtle); cursor: pointer; font-size: 14px; line-height: 1; }
.row-move:hover:not(:disabled) { background: var(--blue-soft); color: var(--blue); }
.row-delete:hover { background: var(--red-soft); color: var(--red); }
.row-move:disabled { opacity: .3; cursor: not-allowed; }
.helper { margin: 11px 0 0; color: var(--subtle); font-size: 11px; }

.status-badge { padding: 5px 9px; border: 1px solid #b8d0f2; border-radius: 999px; background: var(--blue-soft); color: var(--blue-dark); font-size: 10px; }
.inspector-intro { min-height: 48px; color: var(--muted); font-size: 13px; }
.inspector-block { margin-top: 12px; border: 1px solid var(--border); border-radius: 13px; overflow: hidden; }
.inspector-block h3 { margin: 0; padding: 9px 12px; border-bottom: 1px solid var(--border); background: var(--surface-2); color: #405168; font-size: 11px; }
.code, pre { margin: 0; color: #27496f; font: 11px/1.6 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; }
.code { padding: 12px; white-space: pre-wrap; overflow: auto; max-height: 230px; background: #fbfcfe; }
.transform-list { display: grid; gap: 7px; padding: 12px; }
.transform-list div { display: flex; justify-content: space-between; gap: 12px; color: var(--muted); font-size: 12px; }
.transform-list b { color: var(--text); font-weight: 650; }
.flow-mini { display: grid; grid-template-columns: repeat(3,1fr); gap: 8px; padding: 12px; }
.flow-mini div { padding: 10px; border-radius: 9px; background: var(--surface-2); text-align: center; font-size: 11px; }
.flow-mini b { display: block; margin-bottom: 2px; color: var(--cyan); }

.quality-lab, .layer-lab, .query-lab, .advanced { margin-top: 16px; }
.quality-grid { display: grid; grid-template-columns: 170px 170px minmax(0,1fr); gap: 12px; margin-top: 16px; }
.quality-score { padding: 16px; border: 1px solid #b9dbc9; border-radius: 14px; background: var(--green-soft); }
.quality-score.danger { border-color: #efc3c0; background: var(--red-soft); }
.quality-score span, .quality-score small { display: block; color: var(--muted); font-size: 11px; }
.quality-score strong { display: block; margin: 3px 0; font-size: 28px; }
.quality-result { min-height: 112px; padding: 15px; border: 1px dashed var(--border-strong); border-radius: 14px; background: var(--surface-2); }
.quality-result p { margin: 0; color: var(--muted); font-size: 12px; }
.quality-issue { display: flex; justify-content: space-between; gap: 12px; padding: 7px 0; border-bottom: 1px solid var(--border); font-size: 11px; }
.quality-issue:last-child { border-bottom: 0; }
.quality-issue b { color: var(--red); }

.concept-card { min-height: 380px; }
.format-tabs, .product-tabs { flex-wrap: wrap; margin: 14px 0; }
.format-view, .product-view { min-height: 260px; }
.columns-demo { display: grid; grid-template-columns: repeat(4,1fr); gap: 8px; margin-top: 14px; }
.column { border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.column b { display: block; padding: 7px; background: var(--blue-soft); color: var(--blue-dark); font-size: 11px; text-align: center; }
.column span { display: block; padding: 5px 7px; border-top: 1px solid var(--border); color: var(--muted); font-size: 10px; text-align: center; }
.row-demo { display: grid; gap: 7px; margin-top: 14px; }
.row-demo div { padding: 9px; border: 1px solid var(--border); border-radius: 9px; color: var(--muted); background: #fbfcfe; font: 10px/1.5 ui-monospace, monospace; }
.iceberg-tree { margin-top: 13px; padding: 14px; border: 1px solid var(--border); border-radius: 12px; background: #f7f9fc; font: 11px/1.8 ui-monospace, monospace; color: #405168; }
.info-line { display: flex; gap: 10px; margin-top: 12px; padding: 11px; border-radius: 10px; background: var(--surface-2); color: var(--muted); font-size: 11px; }
.info-line b { flex: 0 0 auto; color: var(--green); }
.product-hero { padding: 15px; border: 1px solid var(--border); border-radius: 13px; background: var(--surface-2); }
.product-hero strong { font-size: 21px; }
.product-hero p { margin: 5px 0 0; color: var(--muted); font-size: 12px; }
.product-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 10px; }
.product-facts div { padding: 11px; border: 1px solid var(--border); border-radius: 10px; }
.product-facts span, .product-facts b { display: block; }
.product-facts span { color: var(--subtle); font-size: 10px; }
.product-facts b { margin-top: 3px; font-size: 12px; }
.recommendation { margin-top: 10px; padding: 12px; border-left: 2px solid var(--cyan); background: var(--cyan-soft); color: #3e666b; font-size: 11px; }

.layer-tabs { flex-wrap: wrap; }
.layer-view { margin-top: 16px; }
.layer-flow { display: grid; grid-template-columns: 1fr 34px 1fr 34px 1fr; align-items: center; }
.layer-node { padding: 18px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface-2); }
.layer-node.active { border-color: var(--blue); background: var(--blue-soft); }
.layer-node span, .layer-node small { display: block; }
.layer-node span { color: var(--subtle); font-size: 10px; text-transform: uppercase; letter-spacing: .08em; }
.layer-node b { display: block; margin: 4px 0; }
.layer-node small { color: var(--muted); }
.layer-arrow { height: 1px; background: var(--border-strong); position: relative; }
.layer-arrow::after { content: ""; position: absolute; right: 0; top: -3px; width: 7px; height: 7px; border-top: 1px solid var(--blue); border-right: 1px solid var(--blue); transform: rotate(45deg); }
.layer-detail { margin-top: 12px; display: grid; grid-template-columns: .8fr 1.2fr; gap: 12px; }
.layer-detail > div { padding: 14px; border: 1px solid var(--border); border-radius: 12px; background: #fbfcfe; }
.layer-detail h3 { margin: 0 0 6px; font-size: 12px; }
.layer-detail p { margin: 0; color: var(--muted); font-size: 11px; }

.governance-grid { grid-template-columns: 1.15fr .85fr; }
.lineage-flow { display: grid; grid-template-columns: auto 1fr auto 1fr auto 1fr auto 1fr auto 1fr auto; align-items: center; gap: 7px; margin: 18px 0; }
.lineage-flow span { padding: 7px 9px; border: 1px solid var(--border); border-radius: 9px; background: var(--surface-2); text-align: center; font-size: 10px; }
.lineage-flow i { height: 1px; background: var(--border-strong); }
.ops-checks { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 14px 0; }
.ops-checks div { padding: 11px; border: 1px solid var(--border); border-radius: 11px; background: #fbfcfe; }
.ops-checks b, .ops-checks span { display: block; }
.ops-checks b { font-size: 11px; }
.ops-checks span { margin-top: 3px; color: var(--subtle); font-size: 10px; }
.ops-checks span.ok { color: var(--green); }
.ops-checks span.warn { color: var(--orange); }
.quiz-list { display: grid; gap: 10px; margin-top: 14px; }
.quiz-list fieldset { display: grid; gap: 6px; margin: 0; padding: 11px; border: 1px solid var(--border); border-radius: 11px; }
.quiz-list legend { padding: 0 5px; font-size: 11px; font-weight: 700; }
.quiz-list label { color: var(--muted); font-size: 11px; cursor: pointer; }
.quiz-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 14px; }
.quiz-actions strong { color: var(--muted); font-size: 12px; }

.bi-dashboard { margin-top: 16px; }
.bi-heading { align-items: end; }
.report-filter { display: grid; gap: 5px; min-width: 180px; color: var(--muted); font-size: 10px; font-weight: 700; }
.report-filter select { padding: 8px 10px; border: 1px solid var(--border-strong); border-radius: 9px; background: #fff; color: var(--text); }
.bi-kpis { display: grid; grid-template-columns: repeat(4,1fr); gap: 10px; margin-top: 16px; }
.bi-kpis article { padding: 15px; border: 1px solid var(--border); border-radius: 13px; background: var(--surface-2); }
.bi-kpis span, .bi-kpis small { display: block; color: var(--muted); font-size: 10px; }
.bi-kpis strong { display: block; margin: 3px 0; font-size: 23px; }
.bi-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; margin-top: 10px; }
.bi-panel { min-width: 0; padding: 14px; border: 1px solid var(--border); border-radius: 13px; background: #fff; }
.panel-title { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; margin-bottom: 12px; }
.panel-title b { font-size: 12px; }
.panel-title small { color: var(--subtle); font-size: 9px; text-align: right; }
.chart-list, .product-ranking, .status-stack { display: grid; gap: 8px; }
.chart-row { display: grid; grid-template-columns: 82px minmax(80px,1fr) auto; align-items: center; gap: 9px; font-size: 10px; }
.chart-row > span { overflow: hidden; text-overflow: ellipsis; }
.chart-track { height: 8px; border-radius: 99px; background: #edf2f8; overflow: hidden; }
.chart-track i { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--blue), #62a1ec); }
.chart-row b { color: var(--blue-dark); font-size: 10px; }
.share-summary { display: flex; align-items: center; gap: 18px; }
.donut { --share: 0deg; flex: 0 0 112px; width: 112px; height: 112px; display: grid; place-items: center; border-radius: 50%; background: conic-gradient(var(--blue) 0 var(--share), #dfe9f6 var(--share) 360deg); position: relative; }
.donut::after { content: ""; width: 67px; height: 67px; border-radius: 50%; background: #fff; }
.donut b { position: absolute; z-index: 1; font-size: 14px; }
.share-legend { flex: 1; display: grid; gap: 5px; }
.share-legend div { display: flex; justify-content: space-between; gap: 8px; color: var(--muted); font-size: 10px; }
.rank-row { display: grid; grid-template-columns: 22px minmax(0,1fr) auto; gap: 8px; align-items: center; padding-bottom: 6px; border-bottom: 1px solid var(--border); font-size: 10px; }
.rank-row:last-child { padding-bottom: 0; border-bottom: 0; }
.rank-row > span:first-child { color: var(--blue); font-weight: 800; }
.rank-row small { display: block; color: var(--subtle); }
.status-stack div { display: flex; justify-content: space-between; gap: 12px; padding: 9px; border-radius: 9px; background: var(--surface-2); font-size: 10px; }
.status-stack b.ok { color: var(--green); }
.status-stack b.warn { color: var(--orange); }
.bi-empty { display: grid; min-height: 112px; place-items: center; padding: 15px; border: 1px dashed var(--border-strong); border-radius: 10px; color: var(--subtle); font-size: 10px; text-align: center; }
.report-footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 12px; color: var(--muted); font-size: 10px; }

.query-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 14px; margin-top: 15px; }
.query-grid > pre { padding: 15px; border: 1px solid var(--border); border-radius: 13px; background: #f7f9fc; overflow: auto; }
.query-result { min-height: 180px; border: 1px solid var(--border); border-radius: 13px; overflow: hidden; }
.query-result.empty { display: grid; place-items: center; color: var(--subtle); font-size: 12px; }
.result-row { display: grid; grid-template-columns: 1fr 70px 1fr; gap: 8px; padding: 9px 12px; border-bottom: 1px solid var(--border); font-size: 12px; }
.result-row.header { background: var(--surface-2); color: var(--muted); font-size: 10px; }
.result-row:last-child { border-bottom: 0; }
.bar-cell { position: relative; }
.bar-cell span { position: relative; z-index: 1; }
.bar-fill { position: absolute; left: 0; top: 2px; bottom: 2px; border-radius: 4px; background: #cfe0fa; }

.advanced { padding: 0; overflow: hidden; }
.advanced-toggle { display: flex; width: 100%; align-items: center; justify-content: space-between; padding: 18px 22px; border: 0; background: transparent; text-align: left; cursor: pointer; }
.advanced-toggle b, .advanced-toggle small { display: block; }
.advanced-toggle small { margin-top: 2px; color: var(--muted); }
.advanced-content { padding: 0 22px 22px; }
.ecosystem { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.ecosystem article { padding: 12px; border: 1px solid var(--border); border-radius: 11px; background: var(--surface-2); }
.ecosystem h3 { margin: 0 0 7px; color: var(--cyan); font-size: 11px; }
.ecosystem p { margin: 0; color: var(--muted); font-size: 10px; }

.iceberg-lab { margin-top: 16px; }
.truth-badge { flex: 0 0 auto; padding: 6px 10px; border: 1px solid #c8d8ec; border-radius: 999px; background: var(--blue-soft); color: var(--blue-dark); font-size: 10px; }
.iceberg-answer { display: grid; grid-template-columns: 150px minmax(0,1fr); gap: 14px; margin-top: 16px; padding: 15px; border: 1px solid #bfe0df; border-radius: 13px; background: var(--cyan-soft); }
.iceberg-answer b { color: var(--cyan); }
.iceberg-answer p { margin: 0; color: #3e666b; font-size: 12px; }
.iceberg-answer code, .info-line code { padding: 1px 4px; border-radius: 4px; background: rgba(255,255,255,.72); color: var(--blue-dark); }
.iceberg-chain { display: flex; align-items: stretch; gap: 8px; margin-top: 16px; padding-bottom: 5px; overflow-x: auto; }
.iceberg-chain > i { align-self: center; flex: 0 0 18px; height: 1px; background: var(--border-strong); position: relative; }
.iceberg-chain > i::after { content: ""; position: absolute; right: 0; top: -3px; width: 7px; height: 7px; border-top: 1px solid var(--blue); border-right: 1px solid var(--blue); transform: rotate(45deg); }
.iceberg-node { flex: 1 0 145px; min-width: 145px; padding: 12px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface-2); text-align: left; cursor: pointer; }
.iceberg-node:hover, .iceberg-node.active { border-color: var(--blue); background: var(--blue-soft); }
.iceberg-node span, .iceberg-node b, .iceberg-node small { display: block; }
.iceberg-node span { color: var(--blue); font-size: 9px; letter-spacing: .08em; }
.iceberg-node b { margin: 4px 0; font-size: 12px; }
.iceberg-node small { color: var(--muted); font-size: 9px; }
.iceberg-detail { display: grid; grid-template-columns: .9fr 1.1fr; gap: 12px; margin-top: 12px; }
.iceberg-explain, .iceberg-example { min-width: 0; padding: 15px; border: 1px solid var(--border); border-radius: 13px; background: #fbfcfe; }
.iceberg-explain > span { color: var(--red); font-size: 10px; }
.iceberg-explain h3 { margin: 4px 0 7px; font-size: 15px; }
.iceberg-explain p, .iceberg-explain li { color: var(--muted); font-size: 11px; }
.iceberg-explain ul { margin: 10px 0 0; padding-left: 18px; }
.iceberg-example .code { max-height: 330px; }
.commit-strip { display: flex; align-items: center; gap: 7px; margin-top: 12px; padding: 12px; border: 1px solid #efd3ae; border-radius: 12px; background: var(--orange-soft); overflow-x: auto; }
.commit-strip span, .commit-strip b { flex: 0 0 auto; font-size: 10px; }
.commit-strip i { flex: 1 0 18px; height: 1px; background: #d7a766; }
.commit-strip b { color: var(--orange); }
.source-note { margin-top: 10px; color: var(--subtle); font-size: 10px; }
.source-note a { color: var(--blue); }
.storage-emr-grid { grid-template-columns: .82fr 1.18fr; }
.storage-tabs { display: flex; gap: 4px; margin: 14px 0; padding: 4px; border: 1px solid var(--border); border-radius: 11px; background: var(--surface-2); }
.storage-button { flex: 1; border: 0; border-radius: 8px; padding: 8px; background: transparent; color: var(--muted); cursor: pointer; }
.storage-button.active { background: #fff; color: var(--text); box-shadow: 0 2px 8px rgba(31,55,86,.09); }
.storage-profile { padding: 16px; border: 1px solid var(--border); border-radius: 13px; background: #fbfcfe; }
.storage-profile > span { color: var(--red); font-size: 10px; letter-spacing: .08em; }
.storage-profile h3 { margin: 4px 0 7px; font-size: 15px; }
.storage-profile p { margin: 0; color: var(--muted); font-size: 11px; }
.storage-facts { display: grid; gap: 8px; margin-top: 12px; }
.storage-facts div { padding: 10px; border: 1px solid var(--border); border-radius: 10px; background: #fff; }
.storage-facts small, .storage-facts b { display: block; }
.storage-facts small { color: var(--subtle); font-size: 9px; }
.storage-facts b { margin-top: 3px; font-size: 11px; }
.storage-compare-view { overflow-x: auto; }
.storage-table { min-width: 620px; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.storage-row { display: grid; grid-template-columns: 105px 1fr 1fr; }
.storage-row > * { min-width: 0; padding: 8px 9px; border-right: 1px solid var(--border); border-bottom: 1px solid var(--border); font-size: 10px; }
.storage-row > *:last-child { border-right: 0; }
.storage-row:last-child > * { border-bottom: 0; }
.storage-row.header { background: var(--surface-2); color: var(--blue-dark); }
.storage-row span { color: var(--muted); }
.emr-layer-tabs { display: grid; grid-template-columns: repeat(4,1fr); gap: 6px; margin-top: 14px; }
.emr-layer-button { min-width: 0; padding: 9px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-2); text-align: left; cursor: pointer; }
.emr-layer-button.active { border-color: var(--blue); background: var(--blue-soft); color: var(--blue-dark); }
.emr-layer-button small { display: block; margin-top: 2px; color: var(--subtle); font-size: 8px; }
.emr-component-view { margin-top: 10px; }
.component-pills { display: flex; flex-wrap: wrap; gap: 6px; }
.component-pill { padding: 6px 9px; border: 1px solid var(--border); border-radius: 999px; background: #fff; color: var(--muted); font-size: 10px; cursor: pointer; }
.component-pill.active { border-color: var(--red); background: var(--red-soft); color: var(--red); }
.component-detail { margin-top: 10px; padding: 14px; border: 1px solid var(--border); border-radius: 12px; background: #fbfcfe; }
.component-detail span { color: var(--blue); font-size: 9px; }
.component-detail h3 { margin: 4px 0 6px; font-size: 16px; }
.component-detail p { margin: 0; color: var(--muted); font-size: 11px; }

.chapter-heading {
  display: grid;
  grid-template-columns: 56px minmax(0,1fr);
  gap: 16px;
  align-items: center;
  margin: 34px 0 12px;
  padding: 0 4px;
}
.chapter-heading > span {
  display: grid;
  width: 52px;
  height: 52px;
  place-items: center;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  color: #fff;
  font-size: 17px;
  font-weight: 800;
  box-shadow: 0 9px 22px rgba(40,104,216,.2);
}
.chapter-heading p, .chapter-heading h2, .chapter-heading small { margin: 0; }
.chapter-heading p { color: var(--red); font-size: 10px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.chapter-heading h2 { margin-top: 2px; font-size: 22px; }
.chapter-heading small { display: block; margin-top: 3px; color: var(--muted); font-size: 12px; }
.journey-overview { position: relative; overflow: hidden; }
.journey-overview::before { content: ""; position: absolute; left: 0; top: 0; width: 5px; height: 100%; background: linear-gradient(var(--blue), var(--cyan), var(--orange)); }
.beginner-key { display: grid; grid-template-columns: auto minmax(0,1fr); gap: 13px; margin-top: 15px; padding: 14px 16px; border: 1px solid #f0cc9e; border-radius: 13px; background: var(--orange-soft); color: #6d512f; font-size: 12px; }
.beginner-key b { color: var(--orange); }
.beginner-key strong { color: var(--red); }
.cdc-boundary-lab, .snapshot-lab { margin-top: 0; }
.cdc-boundary-flow {
  display: grid;
  grid-template-columns: minmax(120px,1fr) 22px minmax(120px,1fr) 22px minmax(120px,1fr) 22px minmax(120px,1fr) 22px minmax(120px,1fr) 22px minmax(120px,1fr);
  align-items: stretch;
  overflow-x: auto;
  padding: 5px 2px 10px;
}
.cdc-boundary-flow > i { align-self: center; height: 2px; background: #adc1d9; position: relative; }
.cdc-boundary-flow > i::after { content: ""; position: absolute; right: 0; top: -3px; width: 7px; height: 7px; border-top: 2px solid var(--blue); border-right: 2px solid var(--blue); transform: rotate(45deg); }
.boundary-node { min-width: 120px; padding: 14px 12px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface-2); position: relative; }
.boundary-node span, .boundary-node b, .boundary-node small, .boundary-node em { display: block; }
.boundary-node span { color: var(--subtle); font-size: 9px; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
.boundary-node b { margin: 6px 0 3px; font-size: 13px; }
.boundary-node small { color: var(--muted); font-size: 9px; }
.boundary-node em { margin-top: 9px; padding: 4px 7px; border-radius: 7px; background: var(--red-soft); color: var(--red); font-size: 9px; font-style: normal; font-weight: 800; }
.boundary-node.source-node, .boundary-node.log-node { border-color: #e3aaa4; background: #fff7f6; }
.boundary-node.lake-node { border-color: #a9d7d5; background: var(--cyan-soft); }
.boundary-node .no-binlog { background: #fff; color: var(--cyan); }
.scenario-tabs, .snapshot-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.change-button, .snapshot-button { border: 1px solid var(--border); border-radius: 11px; background: var(--surface-2); color: var(--muted); cursor: pointer; transition: .18s ease; }
.change-button { padding: 8px 13px; font-size: 11px; font-weight: 700; }
.change-button:hover, .change-button.active, .snapshot-button:hover, .snapshot-button.active { border-color: var(--blue); background: var(--blue-soft); color: var(--blue-dark); transform: translateY(-1px); }
.change-demo { display: grid; grid-template-columns: 1fr 32px 1fr 32px 1fr; align-items: stretch; gap: 7px; margin-top: 12px; }
.change-card { min-width: 0; padding: 14px; border: 1px solid var(--border); border-radius: 13px; background: #fbfcfe; }
.change-card > span { display: block; color: var(--subtle); font-size: 9px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.change-card h3 { margin: 4px 0 9px; font-size: 13px; }
.change-card .code { max-height: 190px; border-radius: 9px; background: #fff; }
.change-arrow { align-self: center; height: 2px; background: var(--border-strong); position: relative; }
.change-arrow::after { content: ""; position: absolute; right: 0; top: -3px; width: 7px; height: 7px; border-top: 2px solid var(--blue); border-right: 2px solid var(--blue); transform: rotate(45deg); }
.changed-field { margin-top: 9px; padding: 7px 9px; border-radius: 8px; background: var(--orange-soft); color: var(--orange); font-size: 10px; font-weight: 700; }
.change-card.highlight-new { border-color: #9ad0b4; background: var(--green-soft); }
.change-card.highlight-changed { border-color: #edbf86; background: var(--orange-soft); }
.change-card.highlight-deleted { border-color: #e3aaa4; background: var(--red-soft); }
.snapshot-explainer { display: grid; grid-template-columns: 170px minmax(0,1fr); gap: 15px; margin-top: 15px; padding: 14px; border: 1px solid #bfd6f4; border-radius: 13px; background: var(--blue-soft); }
.snapshot-explainer b { color: var(--blue-dark); }
.snapshot-explainer p { margin: 0; color: #46617f; font-size: 12px; }
.snapshot-button { flex: 1 1 180px; padding: 11px 13px; text-align: left; }
.snapshot-button span, .snapshot-button b, .snapshot-button small { display: block; }
.snapshot-button span { color: var(--red); font-size: 10px; font-weight: 800; }
.snapshot-button b { margin-top: 3px; font-size: 12px; }
.snapshot-button small { color: var(--subtle); font-size: 9px; }
.snapshot-map-view { margin-top: 12px; }
.snapshot-map { display: grid; grid-template-columns: .8fr 26px 1fr 26px 1fr 26px 1.35fr; align-items: stretch; gap: 6px; }
.snapshot-column { min-width: 0; padding: 13px; border: 1px solid var(--border); border-radius: 13px; background: #fbfcfe; }
.snapshot-column > span { color: var(--subtle); font-size: 9px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.snapshot-column h3 { margin: 4px 0 9px; font-size: 13px; }
.snapshot-column p { margin: 0; color: var(--muted); font-size: 10px; }
.snapshot-column .file-list { display: grid; gap: 7px; margin-top: 8px; }
.file-chip { padding: 8px 9px; border: 1px solid var(--border); border-radius: 9px; background: #fff; font: 9px/1.45 ui-monospace, monospace; overflow-wrap: anywhere; }
.file-chip b { display: block; margin-bottom: 2px; font: 700 9px/1.4 Inter, sans-serif; }
.file-chip.new { border-color: #96c9ad; background: var(--green-soft); }
.file-chip.changed { border-color: #efc382; background: var(--orange-soft); }
.file-chip.reused { border-color: #b8c8dc; background: #f1f5fa; color: var(--muted); }
.file-chip.deleted { border-color: #e3aaa4; background: var(--red-soft); }
.snapshot-arrow { align-self: center; height: 2px; background: var(--border-strong); position: relative; }
.snapshot-arrow::after { content: ""; position: absolute; right: 0; top: -3px; width: 7px; height: 7px; border-top: 2px solid var(--blue); border-right: 2px solid var(--blue); transform: rotate(45deg); }
.snapshot-impact { display: grid; grid-template-columns: repeat(3,1fr); gap: 8px; margin-top: 10px; }
.snapshot-impact div { padding: 10px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-2); }
.snapshot-impact span, .snapshot-impact b { display: block; }
.snapshot-impact span { color: var(--subtle); font-size: 9px; }
.snapshot-impact b { margin-top: 3px; font-size: 11px; }
.legend { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; color: var(--muted); font-size: 9px; }
.legend span { padding: 4px 8px; border: 1px solid var(--border); border-radius: 999px; }
.legend-new { background: var(--green-soft); }
.legend-changed { background: var(--orange-soft); }
.legend-reused { background: #f1f5fa; }
.legend-deleted { background: var(--red-soft); }

.toast { position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px); padding: 10px 14px; border: 1px solid var(--border-strong); border-radius: 10px; background: #fff; box-shadow: var(--shadow); color: var(--text); font-size: 12px; opacity: 0; pointer-events: none; transition: .25s ease; z-index: 50; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.flash { animation: flash .6s ease; }
@keyframes flash { 50% { background-color: #eff8ff; } }
footer { display: flex; justify-content: space-between; margin-top: 20px; color: var(--subtle); font-size: 11px; }

@media (max-width: 1120px) {
  .metrics { grid-template-columns: repeat(3, 1fr); }
  .quality-grid { grid-template-columns: 1fr 1fr; }
  .quality-result { grid-column: 1 / -1; }
  .serving-route { grid-template-columns: repeat(13, auto); }
  .bi-kpis { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 980px) {
  .hero, .workspace, .learning-grid, .query-grid, .governance-grid { grid-template-columns: 1fr; }
  .hero-actions { justify-content: flex-start; }
  .pipeline { grid-template-columns: 1fr; gap: 7px; }
  .pipeline > i { width: 1px; height: 18px; justify-self: center; }
  .pipeline > i::after { right: -3px; top: auto; bottom: 0; transform: rotate(135deg); }
  .branches { grid-template-columns: 1fr; }
  .source-answer { grid-template-columns: 1fr; }
  .source-answer span { padding: 9px 0 0; border-left: 0; border-top: 1px solid #bfe0df; }
  .serving-explanation, .bi-grid { grid-template-columns: 1fr; }
  .change-demo, .snapshot-map { grid-template-columns: 1fr; }
  .change-arrow, .snapshot-arrow { width: 2px; height: 18px; justify-self: center; }
  .change-arrow::after, .snapshot-arrow::after { right: -3px; top: auto; bottom: 0; transform: rotate(135deg); }
  .cdc-boundary-flow { grid-template-columns: repeat(11, auto); }
  .ecosystem { grid-template-columns: 1fr 1fr; }
  .lineage-flow { grid-template-columns: 1fr; }
  .lineage-flow i { width: 1px; height: 12px; justify-self: center; }
}
@media (max-width: 680px) {
  .site-nav { height: 60px; padding: 0 12px; }
  .nav-current, .site-brand small { display: none; }
  .nav-tools { gap: 6px; }
  .language-switch a { min-width: 34px; padding: 4px 6px; }
  .app-shell { width: min(100% - 20px, 1440px); padding-top: 14px; }
  .hero { padding: 24px 20px; border-radius: 20px; }
  .hero-actions, .section-heading { align-items: stretch; flex-direction: column; }
  .hero-actions .button { flex: 1; }
  .metrics { grid-template-columns: 1fr 1fr; }
  .bi-kpis { grid-template-columns: 1fr 1fr; }
  .share-summary { align-items: flex-start; flex-direction: column; }
  .report-footer { align-items: stretch; flex-direction: column; }
  .report-footer .button { width: 100%; }
  .pipeline-card, .card { padding: 17px; }
  .segmented, .layer-tabs { align-self: flex-start; }
  .product-facts, .columns-demo, .ops-checks { grid-template-columns: 1fr 1fr; }
  .ecosystem { grid-template-columns: 1fr; }
  .quality-grid, .layer-detail, .iceberg-detail, .iceberg-answer, .snapshot-explainer { grid-template-columns: 1fr; }
  .chapter-heading { grid-template-columns: 44px minmax(0,1fr); gap: 11px; margin-top: 26px; }
  .chapter-heading > span { width: 42px; height: 42px; border-radius: 13px; font-size: 14px; }
  .chapter-heading h2 { font-size: 18px; }
  .chapter-heading small { font-size: 10px; }
  .beginner-key { grid-template-columns: 1fr; }
  .snapshot-impact { grid-template-columns: 1fr; }
  .cdc-boundary-flow { grid-template-columns: 1fr; gap: 7px; overflow: visible; }
  .cdc-boundary-flow > i { width: 2px; height: 16px; justify-self: center; }
  .cdc-boundary-flow > i::after { right: -3px; top: auto; bottom: 0; transform: rotate(135deg); }
  .boundary-node { min-width: 0; }
  .emr-layer-tabs { grid-template-columns: 1fr 1fr; }
  .truth-badge { align-self: flex-start; }
  .quality-result { grid-column: auto; }
  .layer-flow { grid-template-columns: 1fr; gap: 7px; }
  .layer-arrow { width: 1px; height: 16px; justify-self: center; }
  .layer-arrow::after { right: -3px; top: auto; bottom: 0; transform: rotate(135deg); }
  footer { flex-direction: column; gap: 4px; }
}