:root {
  --ink: #111827;
  --body: rgba(0, 0, 0, 0.9);
  --muted: #4b5563;
  --soft: #9ca3af;
  --line: #e5e7eb;
  --panel: #f9fafb;
  --personal-primary: #f97316;
  --personal-dark: #ea580c;
  --personal-text: #9a3412;
  --personal-soft: #fff7ed;
  --personal-line: #fed7aa;
  --longcat-primary: #29e154;
  --longcat-dark: #087a2f;
  --longcat-text: #0b6b2b;
  --longcat-soft: #effdf3;
  --longcat-line: #a7f3bd;
  --accent: var(--longcat-primary);
  --accent-dark: var(--longcat-dark);
  --accent-text: var(--longcat-text);
  --accent-soft: var(--longcat-soft);
  --accent-line: var(--longcat-line);
}

html[data-theme="personal-zhuhe"] {
  --accent: var(--personal-primary);
  --accent-dark: var(--personal-dark);
  --accent-text: var(--personal-text);
  --accent-soft: var(--personal-soft);
  --accent-line: var(--personal-line);
}

html[data-theme="longcat"] {
  --accent: var(--longcat-primary);
  --accent-dark: var(--longcat-dark);
  --accent-text: var(--longcat-text);
  --accent-soft: var(--longcat-soft);
  --accent-line: var(--longcat-line);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
body {
  position: relative;
  margin: 0;
  color: var(--body);
  background: #fff;
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, "Segoe UI", Arial, Roboto, "PingFang SC", miui, "Hiragino Sans GB", "Microsoft Yahei", sans-serif;
  font-size: 14px;
  line-height: 22px;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: none;
}

a { color: inherit; }
img { display: block; max-width: 100%; }
button { font: inherit; }

.page-root {
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--ink);
}

.site-logo {
  position: absolute;
  z-index: 50;
  top: 20px;
  left: 20px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #111827;
  font-weight: 750;
  text-decoration: none;
}

.site-logo img { width: 31px; height: 31px; }
.site-logo span { font-size: 18px; letter-spacing: -0.035em; }

.lang-switcher {
  position: absolute;
  z-index: 50;
  top: 20px;
  right: 20px;
}

.lang-btn {
  padding: 6px 11px;
  color: #374151;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 9999px;
  font-size: 12px;
  cursor: default;
}

.mobile-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  display: none;
  height: 64px;
  overflow-x: auto;
  border-bottom: 1px solid #f3f4f6;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  scrollbar-width: none;
}

.mobile-nav::-webkit-scrollbar { display: none; }
.mobile-nav-inner {
  width: max-content;
  min-width: 100%;
  max-width: 896px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.mobile-nav a {
  color: #6b7280;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
}

.side-nav {
  position: fixed;
  z-index: 40;
  top: 50%;
  left: max(24px, calc(50vw - 480px - 240px));
  width: 240px;
  transform: translateY(-50%);
}

.side-nav__list,
.side-nav__sublist {
  margin: 0;
  padding: 0;
  list-style: none;
}

.side-nav__list {
  position: relative;
  border-left: 2px solid var(--line);
}

.side-nav__link {
  width: 100%;
  margin-left: -2px;
  padding: 8px 0 8px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #9ca3af;
  background: transparent;
  border: 0;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.3;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
  transition: color .2s;
}

.side-nav__link:hover { color: #4b5563; }
.side-nav__link--group { color: #6b7280; font-weight: 600; }
.side-nav__link--child { padding-left: 28px; font-size: 13px; }
.side-nav__link.is-active { color: #111827; }
.side-nav__marker {
  width: 2px;
  height: 18px;
  margin-left: -16px;
  flex: 0 0 auto;
  background: transparent;
}
.side-nav__link.is-active .side-nav__marker { background: var(--accent); }

.hero,
.content-section,
.group-heading,
.intro-section {
  width: 100%;
  max-width: 896px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.hero {
  padding-top: 126px;
  padding-bottom: 0;
  text-align: center;
}

.hero h1 {
  margin: 18.76px 0;
  color: #111827;
  font-family: ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
  font-size: 36.8px;
  font-weight: 750;
  line-height: 1.1;
  letter-spacing: -0.025em;
}

.hero-meta {
  margin-top: 3px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 10px;
  color: #6b7280;
  font-size: 13px;
}

.hero-links {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.link-btn {
  padding: 6px 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #374151;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 9999px;
  font-size: 12.8px;
  font-weight: 500;
  text-decoration: none;
  transition: background .15s, border-color .15s;
}

.link-btn:hover { background: #f9fafb; border-color: #d1d5db; }
.link-btn.disabled { color: #9ca3af; cursor: default; }
.link-icon { width: 15px; height: 15px; display: inline-grid; place-items: center; }

.intro-section { padding-top: 30px; padding-bottom: 24px; }
.intro {
  color: rgba(0, 0, 0, 0.9);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: -0.01em;
}
.intro p { margin: 0; }
.intro p + p { margin-top: 20px; }
.intro sup { margin-left: 2px; font-size: 10px; line-height: 0; }
.intro sup a { color: var(--accent-text); text-decoration: none; }

.content-section { padding-top: 48px; padding-bottom: 48px; scroll-margin-top: 72px; }
.group-heading { padding-top: 16px; padding-bottom: 8px; scroll-margin-top: 72px; }

.section-title {
  margin: 0 0 40px;
  color: #111827;
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 32px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.01em;
  text-align: center;
}

.group-heading__title {
  margin: 0 0 28px;
  color: #111827;
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 30px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  text-align: center;
}

.group-heading__body,
.prose {
  color: rgba(0, 0, 0, 0.9);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: -0.01em;
}

.group-heading__body { margin: 0; }
.prose p { margin: 0 0 20px; }
.prose p:last-child { margin-bottom: 0; }
.prose ul,
.prose ol { margin: 0 0 20px; padding-left: 32px; }
.prose li { margin: 0 0 10px; }
.prose strong { color: #111827; font-weight: 650; }
.prose a { color: inherit; text-decoration: underline; }
.prose a:hover { color: var(--accent-dark); }

.sub-title {
  margin: 44px 0 20px;
  color: #111827;
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 24px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.subsection-title {
  margin: 32px 0 16px;
  color: #111827;
  font-size: 19.2px;
  font-weight: 600;
  line-height: 1.4;
}

.report-figure {
  margin: 32px 0 16px;
}
.report-figure img,
.report-figure svg { width: 100%; height: auto; }
.report-figure figcaption {
  margin-top: 12px;
  color: #6b7280;
  font-size: 12px;
  line-height: 1.6;
  text-align: center;
}

.overview-section { padding-top: 28px; }

.benchmark-shell {
  overflow: hidden;
  border: 1px solid #e2e6e4;
  border-radius: 14px;
  background: #fff;
}

.benchmark-overview {
  min-height: 350px;
  padding: 34px 20px 28px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 25px;
}

.benchmark-card {
  min-width: 0;
  display: grid;
  grid-template-rows: 265px auto;
}

.benchmark-bars {
  display: flex;
  gap: 5px;
  align-items: end;
  justify-content: center;
  border-bottom: 2px solid #434a48;
}

.benchmark-bar-wrap {
  width: 34px;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
}

.benchmark-bar-wrap > strong {
  margin-bottom: 7px;
  color: #2d3231;
  font-size: 12px;
  font-weight: 750;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.benchmark-bar-wrap > strong sup { color: #6d7672; font-size: 7px; }
.benchmark-bar-wrap--pending > strong { color: #7d8782; font-size: 9px; letter-spacing: .02em; }
.benchmark-bar-wrap--pending .benchmark-bar { opacity: .45; }

.benchmark-bar {
  width: 100%;
  height: var(--height);
  min-height: 44px;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 17px;
  border-radius: 7px 7px 0 0;
}

.benchmark-bar--longcat { color: #fff; background: #1fbe45; }
.benchmark-bar--gemini { color: #4272c9; background: #dce6f2; }
.benchmark-bar--claude { color: #e87955; background: #f2eae3; }
.benchmark-bar--openai { color: #111; background: #eceff1; }
.benchmark-bar--gpt55 { color: #111; background: #e7e4e1; }
.benchmark-bar--gpt56 { color: #fff; background: #cfcac4; }

.model-mark {
  width: 21px;
  height: 21px;
  display: inline-block;
  flex: 0 0 auto;
  background: currentColor;
  -webkit-mask-position: center;
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-size: contain;
  mask-position: center;
  mask-repeat: no-repeat;
  mask-size: contain;
}
.model-mark--longcat { -webkit-mask-image: url("./assets/model-marks/longcat.svg"); mask-image: url("./assets/model-marks/longcat.svg"); }
.model-mark--gemini {
  background: conic-gradient(from 25deg, #ee6073, #f5be35, #3bc486, #4d8cf3, #875be8, #ee6073);
  -webkit-mask-image: url("./assets/model-marks/gemini.svg"); mask-image: url("./assets/model-marks/gemini.svg");
}
.model-mark--claude { -webkit-mask-image: url("./assets/model-marks/claude.svg"); mask-image: url("./assets/model-marks/claude.svg"); }
.model-mark--openai { -webkit-mask-image: url("./assets/model-marks/openai.svg"); mask-image: url("./assets/model-marks/openai.svg"); }

.benchmark-label {
  width: fit-content;
  margin: 24px auto 0;
  padding: 5px 11px 6px;
  color: #4d5661;
  border: 1px solid #d9dee3;
  border-radius: 3px;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
}

.benchmark-legend {
  padding: 17px 18px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 18px;
  color: #5e6875;
  border-top: 1px solid #e4e7e6;
  font-size: 11px;
  font-weight: 650;
}

.benchmark-legend span { display: inline-flex; align-items: center; gap: 5px; }
.benchmark-legend .model-mark { width: 15px; height: 15px; color: #5d6670; }
.benchmark-legend span:first-child .model-mark { color: #1fbe45; }
.benchmark-legend span:nth-child(3) .model-mark { color: #e87955; }
.legend-swatch { width: 17px; height: 17px; display: inline-block; border-radius: 4px; }
.legend-swatch--longcat { background: #1fbe45; }
.legend-swatch--gemini { background: #dce6f2; border: 1px solid #cfd9e5; }
.legend-swatch--claude { background: #f2eae3; border: 1px solid #e8ddd3; }
.legend-swatch--openai { background: #eceff1; border: 1px solid #dce0e3; }
.legend-swatch--gpt55 { background: #e7e4e1; border: 1px solid #dad6d2; }
.legend-swatch--gpt56 { background: #cfcac4; border: 1px solid #c1bbb4; }

.figure-board {
  padding: 16px;
  border: 1px solid #f1f2f4;
  border-radius: 10px;
  background: #fff;
}

.table-wrap {
  margin: 28px 0 16px;
  overflow-x: auto;
  border: 1px solid #f1f2f4;
  border-radius: 8px;
}

.table-block { margin: 28px 0 16px; }
.table-block .table-wrap { margin: 0; border-radius: 0 0 8px 8px; }
.table-setting,
.chart-setting {
  color: #6b7280;
  background: #f9fafb;
  border: 1px solid #f1f2f4;
  font-size: 11px;
  line-height: 1.55;
}
.table-setting {
  padding: 9px 12px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-radius: 8px 8px 0 0;
  border-bottom: 0;
}
.table-setting strong { color: #374151; }

table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  color: #374151;
  font-size: 12px;
}

th {
  padding: 10px 8px;
  color: #4b5563;
  background: rgba(249, 250, 251, 0.8);
  border-bottom: 1px solid #d1d5db;
  font-weight: 600;
  text-align: center;
  white-space: nowrap;
}

td {
  padding: 8px;
  border-bottom: 1px solid #f3f4f6;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

td:first-child, th:first-child { text-align: left; font-weight: 500; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: rgba(249, 250, 251, 0.8); }
.best { color: #111827; font-weight: 700; background: rgba(249, 250, 251, 0.9); }
.longcat-row {
  background: var(--longcat-soft);
  box-shadow: inset 3px 0 0 var(--longcat-primary);
}
.longcat-row .best { color: #111827; background: transparent; }

.model-tag {
  margin-left: 6px;
  padding: 2px 6px;
  display: inline-flex;
  align-items: center;
  vertical-align: 1px;
  color: var(--longcat-text);
  background: #fff;
  border: 1px solid var(--longcat-line);
  border-radius: 999px;
  font-size: 9px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}
.model-tag--ours { color: #fff; background: var(--longcat-dark); border-color: var(--longcat-dark); }

.note {
  margin: 24px 0;
  padding: 14px 16px;
  color: #4b5563;
  background: #f9fafb;
  border-left: 3px solid #d1d5db;
  font-size: 13px;
  line-height: 1.7;
}

.release-list {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.release-item {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}
.release-item strong { display: block; margin-bottom: 4px; color: #111827; }
.release-item span { color: #6b7280; font-size: 13px; }

.reveal { opacity: 1; transform: none; transition: opacity .65s, transform .65s; }
.no-js .reveal { opacity: 1; transform: none; }

footer {
  margin-top: 48px;
  padding: 42px 24px;
  color: #9ca3af;
  border-top: 1px solid #f3f4f6;
  font-size: 12px;
  text-align: center;
}

.notes-heading { padding-bottom: 0; }
.notes-section { padding-top: 12px; }
.notes-list {
  margin: 0;
  padding: 22px 22px 22px 42px;
  color: #6b7280;
  background: #fafafa;
  border-top: 1px solid #e5e7eb;
  border-bottom: 1px solid #e5e7eb;
  font-size: 11px;
  line-height: 1.65;
}
.notes-list li { padding-left: 4px; }
.notes-list li + li { margin-top: 9px; }
.notes-list strong { color: #4b5563; font-weight: 650; }

@media (min-width: 1024px) {
  .site-logo { position: fixed; top: 24px; left: max(24px, calc(50vw - 448px - 220px)); }
  .lang-switcher { position: fixed; top: 24px; right: 24px; }
}

@media (max-width: 1439px) {
  .side-nav { display: none; }
  .mobile-nav { display: none; }
  .site-logo, .lang-switcher { display: inline-flex; }
  .hero { padding-top: 126px; }
}

@media (max-width: 640px) {
  .hero,
  .content-section,
  .group-heading,
  .intro-section { width: 100vw; max-width: 100vw; padding-left: 20px; padding-right: 20px; }
  body::before { height: 210px; }
  .site-logo { position: absolute; top: 24px; left: 20px; }
  .lang-switcher { position: absolute; top: 22px; right: 20px; }
  .site-logo img { width: 30px; height: 30px; }
  .site-logo span { font-size: 18px; }
  .hero { padding-top: 126px; text-align: left; }
  .hero h1 { margin: 0 0 16px; font-size: 31px; line-height: 1.2; }
  .hero-meta { justify-content: flex-start; }
  .hero-links { justify-content: flex-start; gap: 8px; }
  .intro, .prose, .group-heading__body { font-size: 15px; line-height: 1.72; }
  .section-title { font-size: 28px; }
  .group-heading__title { font-size: 29px; }
  .content-section { padding-top: 40px; padding-bottom: 40px; }
  .release-list { grid-template-columns: 1fr; }
  .benchmark-overview { min-height: 0; padding: 24px 14px; grid-template-columns: 1fr; gap: 34px; }
  .benchmark-card { grid-template-rows: 230px auto; }
  .benchmark-bars { width: 100%; max-width: 300px; margin: 0 auto; gap: 6px; }
  .benchmark-bar-wrap { width: 36px; }
  .benchmark-bar-wrap > strong { font-size: 10px; }
  .benchmark-label { margin-top: 18px; }
  .benchmark-legend { justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

.pipeline {
  margin: 28px 0;
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  overflow-x: auto;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: #374151;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}
.pipeline__arrow { color: var(--accent-dark); font-weight: 700; }

.synthesis-flow {
  padding: 20px;
  display: flex;
  align-items: stretch;
  gap: 8px;
  overflow: visible;
  border: 1px solid #f1f2f4;
  border-radius: 10px;
  background: #fff;
}

.synthesis-stage {
  min-width: 0;
  flex: 1 1 0;
  padding: 14px 12px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
}
.synthesis-stage strong { color: #111827; font-size: 13px; line-height: 1.35; }
.synthesis-stage small { margin-top: 7px; color: #6b7280; font-size: 10.5px; line-height: 1.45; }
.stage-index { margin-bottom: 10px; color: var(--accent-text); font-size: 10px; font-weight: 750; letter-spacing: .08em; }
.flow-arrow { align-self: center; flex: 0 0 auto; color: var(--accent-dark); font-size: 16px; font-weight: 700; }

.harness-diagram {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: #fff;
}
.harness-canvas {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
.harness-canvas text { dominant-baseline: alphabetic; }
.h-stage { fill: #fbfdfb; stroke: #c7d9cd; stroke-width: 1.1; }
.h-stage--planning { fill: #f4faf5; stroke: #a9ceb4; }
.h-kicker { fill: #34704a; font-size: 9px; font-weight: 750; letter-spacing: .65px; }
.h-stage-title { fill: #104e29; font-size: 13px; font-weight: 750; }
.h-lane-label { fill: #557866; font-size: 8.5px; font-weight: 750; letter-spacing: .6px; }
.h-node { stroke-width: 1.1; }
.h-node--query { fill: #fff; stroke: #a7b8ae; }
.h-node--planner { fill: #fff; stroke: #47a263; }
.h-node--adjudicator,
.h-node--agent,
.h-node--reconcile { fill: #178b42; stroke: #178b42; }
.h-node--lossless { fill: #fff; stroke: #b7c9be; }
.h-node--report { fill: #087a2f; stroke: #087a2f; }
.h-node-title { fill: #fff; font-size: 11px; font-weight: 750; }
.h-node-title--dark { fill: #24352b; }
.h-node-sub { fill: #e7f4ea; font-size: 8.5px; }
.h-node-sub--dark { fill: #5c6e63; }
.h-small-title { fill: #176c36; font-size: 9px; font-weight: 750; }
.h-small-title--light { fill: #fff; }
.h-agent-title { fill: #fff; font-size: 10px; font-weight: 750; }
.h-agent-sub { fill: #e5f2e8; font-size: 8.5px; }
.h-report-title { fill: #fff; font-size: 13px; font-weight: 780; }
.h-spec { fill: #e5f4e8; stroke: none; }
.h-spec-title { fill: #176737; font-size: 10px; font-weight: 750; }
.h-loop-label { fill: #4e705c; font-size: 8.5px; font-weight: 700; }
.h-connector path,
.h-plan-connector path {
  fill: none;
  stroke: #779184;
  stroke-width: 1.55;
  vector-effect: non-scaling-stroke;
}
.h-connector .h-arrow,
.h-plan-connector .h-arrow { marker-end: url(#harness2-arrow); }
.h-connector .h-bus,
.h-plan-connector .h-bus { marker-end: none; }
.h-plan-connector path { stroke: #3f7555; stroke-width: 1.35; }
.harness-canvas marker path { fill: #587867; stroke: none; }
.h-connector .h-feedback {
  stroke: #16713a;
  stroke-width: 1.7;
  stroke-dasharray: 7 5;
  marker-end: url(#harness2-arrow);
}
.h-recovery-copy { fill: #50675a; font-size: 9.5px; }
.h-recovery-title { fill: #126b34; font-weight: 750; }

.algorithm-box {
  margin: 28px 0;
  overflow: hidden;
  border: 1px solid #e5e7eb;
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  background: #fff;
  color: #374151;
}
.algorithm-head {
  padding: 11px 14px;
  display: flex;
  gap: 12px;
  background: #f9fafb;
  border-bottom: 1px solid #e5e7eb;
  font-size: 12px;
}
.algorithm-head strong { color: var(--accent-text); }
.algorithm-io { padding: 10px 14px; font-size: 12px; }
.algorithm-lines {
  margin: 0;
  padding: 14px 14px 14px 42px;
  border-top: 1px solid #f3f4f6;
  border-bottom: 1px solid #f3f4f6;
  background: #fff;
  font-size: 12px;
  line-height: 1.8;
  font-variant-numeric: tabular-nums;
  overflow-x: auto;
}
.algorithm-lines ol { margin: 3px 0 3px 8px; padding-left: 24px; }
.algorithm-lines code { color: #1f2937; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; }

.chart-shell {
  overflow: hidden;
  border: 1px solid #f1f2f4;
  border-radius: 10px;
  background: #fff;
}
.chart-header {
  padding: 13px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: #111827;
  font-size: 12px;
}
.chart-header span { color: #9ca3af; font-size: 10.5px; }
.chart-setting { padding: 8px 16px; border-left: 0; border-right: 0; }
.bar-groups { padding: 8px 16px 14px; }
.bar-group { padding: 12px 0; }
.bar-group + .bar-group { border-top: 1px solid #f3f4f6; }
.bar-group--separate { margin-top: 4px; padding-top: 16px; border-top-style: dashed !important; }
.bar-group__label { margin-bottom: 9px; color: #374151; font-size: 11px; font-weight: 650; }
.bar-row {
  min-height: 24px;
  display: grid;
  grid-template-columns: 72px minmax(80px, 1fr) 44px;
  align-items: center;
  gap: 10px;
  color: #6b7280;
  font-size: 10.5px;
}
.bar-row + .bar-row { margin-top: 4px; }
.bar-row > strong { color: #374151; text-align: right; font-variant-numeric: tabular-nums; }
.bar-name { white-space: nowrap; }
.longcat-label { color: var(--accent-text); font-weight: 700; }
.bar-track { height: 8px; overflow: hidden; border-radius: 2px; background: #f3f4f6; }
.bar-fill { width: var(--value); height: 100%; display: block; }
.bar-fill--longcat { background: var(--longcat-primary); }
.bar-fill--longcat-soft { background: #76df91; }
.bar-fill--neutral { background: #9ca3af; }
.bar-fill--union { background: var(--longcat-dark); }
.model-score-chart .bar-groups { padding-top: 16px; padding-bottom: 18px; }
.model-score-chart .bar-row { grid-template-columns: 104px minmax(100px, 1fr) 48px; }
.model-score-chart .bar-row + .bar-row { margin-top: 9px; }

.delta-chart { padding: 16px; }
.delta-row {
  display: grid;
  grid-template-columns: 150px minmax(100px, 1fr) 48px;
  align-items: center;
  gap: 12px;
  color: #4b5563;
  font-size: 11px;
}
.delta-row + .delta-row { margin-top: 12px; }
.delta-row > strong { color: #374151; text-align: right; font-variant-numeric: tabular-nums; }
.delta-track { height: 9px; background: #f3f4f6; }
.delta-track span { width: var(--value); height: 100%; display: block; background: #9ca3af; }

.retrieval-grid { padding: 16px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.retrieval-panel > strong { margin-bottom: 10px; display: block; color: #374151; font-size: 11px; }

.protocol-note {
  margin: 26px 0;
  padding: 15px 18px;
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  color: #4b5563;
  font-size: 13px;
  line-height: 1.75;
}

.section-kicker,
.problem-index {
  color: var(--accent-text);
  font-size: 11px;
  font-weight: 750;
  line-height: 1.4;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.section-kicker {
  margin: 0 0 12px;
  text-align: center;
}

.problem-section {
  position: relative;
  padding-top: 42px;
  padding-bottom: 42px;
  border-top: 1px solid var(--line);
}

.problem-section .section-title { margin-top: 10px; }
.problem-index { text-align: center; }

@media (max-width: 720px) {
  .synthesis-flow { padding: 14px; flex-direction: column; overflow: visible; }
  .synthesis-stage { width: 100%; min-width: 0; }
  .flow-arrow { transform: rotate(90deg); }
  .report-figure--scrollable { overflow-x: auto; }
  .report-figure--scrollable .harness-diagram,
  .report-figure--scrollable figcaption { min-width: 760px; }
  .retrieval-grid { grid-template-columns: 1fr; gap: 20px; }
  .delta-row { grid-template-columns: 124px minmax(70px, 1fr) 44px; gap: 8px; }
  .model-score-chart .bar-row { grid-template-columns: 92px minmax(70px, 1fr) 44px; gap: 8px; }
  .table-setting { flex-direction: column; gap: 2px; }
}

/* LongCat data synthesis figure: shared SVG, responsive stage views. */
.data-synthesis { overflow: visible; }
.data-synthesis .data-synthesis-desktop { display: block; width: 100%; height: auto; }
.data-synthesis-mobile { display: none; }
.data-synthesis figcaption { min-width: 0; max-width: 100%; }
@media (max-width: 720px) {
  .data-synthesis .data-synthesis-desktop { display: none; }
  .data-synthesis-mobile { display: grid; gap: 14px; }
  .data-synthesis-mobile img { display: block; width: 100%; height: auto; object-fit: fill; }
  .data-synthesis-transfer { display: grid; justify-items: center; gap: 2px;
    color: #087a2f; font-size: 13px; line-height: 1.4; font-weight: 600; }
  .data-synthesis-transfer__arrow { font-size: 25px; line-height: 1; }
}
/* End LongCat data synthesis figure. */

/* Shared paper/Blog assets and concise result tables. */
.harness-shared{display:block;width:100%;height:auto;background:white}
.table-scroll{overflow-x:auto;margin:20px 0}
.unified-table{width:100%;border-collapse:collapse;font-size:14px;line-height:1.6}
.unified-table th,.unified-table td{padding:10px 12px;border-bottom:1px solid #e2e8e4;text-align:right;white-space:nowrap}
.unified-table th:first-child,.unified-table td:first-child{text-align:left}
.unified-table th{font-weight:650;color:#374b40}
.longcat-row td:first-child{color:#087a2f;font-weight:650}
@media(max-width:700px){#harness-figure{overflow-x:auto}.harness-shared{min-width:780px}.unified-table{font-size:13px}}

/* Shared native harness SVG: full desktop view, same-source mobile fragments. */
.harness-desktop{display:block;width:100%;height:auto}
.harness-mobile{display:none}
@media(max-width:700px){.harness-desktop{display:none}.harness-mobile{display:grid;gap:14px}.harness-mobile img{display:block;width:100%;height:auto;max-width:100%}}

/* Technical-report companion components. */
#overview { scroll-margin-top: 72px; }
.link-btn.disabled:hover { background: #fff; border-color: var(--line); }
.results-table th:first-child,
.results-table td:first-child { min-width: 190px; }
.configuration-table th:first-child,
.configuration-table td:first-child { min-width: 190px; }
.configuration-table th:nth-child(2),
.configuration-table td:nth-child(2) { min-width: 150px; text-align: left; }

.metric-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 28px 0 36px;
}
.metric-strip > div {
  min-height: 112px;
  padding: 22px 18px;
  display: grid;
  align-content: center;
  gap: 5px;
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  border-radius: 14px;
  text-align: center;
}
.metric-strip strong {
  color: var(--accent-dark);
  font-size: 27px;
  line-height: 1;
  letter-spacing: -0.03em;
}
.metric-strip span {
  color: #4b5563;
  font-size: 12px;
  line-height: 1.35;
}

.insight-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.insight-card {
  padding: 24px;
  background: #fff;
  border: 1px solid #dfe7e1;
  border-radius: 14px;
  box-shadow: 0 10px 28px rgba(15, 54, 30, 0.05);
}
.insight-card__eyebrow {
  color: var(--accent-text);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}
.insight-card h3 {
  margin: 9px 0 10px;
  color: #111827;
  font-size: 18px;
  line-height: 1.3;
}
.insight-card p {
  margin: 0;
  color: #4b5563;
  font-size: 14px;
  line-height: 1.65;
}

.case-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 30px;
}
.case-flow > div {
  position: relative;
  padding: 20px 18px;
  background: #f8fbf9;
  border-top: 3px solid var(--accent);
  border-radius: 0 0 12px 12px;
}
.case-flow span {
  display: block;
  margin-bottom: 15px;
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.08em;
}
.case-flow strong {
  display: block;
  margin-bottom: 8px;
  color: #111827;
  font-size: 16px;
}
.case-flow p {
  margin: 0;
  color: #4b5563;
  font-size: 13px;
  line-height: 1.55;
}

.citation-heading { padding-bottom: 0; }
.citation-section { padding-top: 12px; }
.citation-block {
  margin: 18px 0 0;
  padding: 24px 26px;
  overflow-x: auto;
  color: #d7fbe0;
  background: #102519;
  border: 1px solid #234d32;
  border-radius: 14px;
  box-shadow: 0 14px 34px rgba(10, 40, 22, 0.12);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 13px;
  line-height: 1.65;
  tab-size: 2;
  white-space: pre;
}
.citation-block code { font: inherit; }

@media (max-width: 720px) {
  .metric-strip,
  .insight-grid { grid-template-columns: 1fr; }
  .metric-strip { gap: 9px; }
  .metric-strip > div { min-height: 92px; }
  .case-flow { grid-template-columns: 1fr; }
  #benchmark-overview { overflow-x: auto; }
  #benchmark-overview img { min-width: 720px; }
  #benchmark-overview figcaption { position: sticky; left: 0; width: 350px; }
  .citation-block {
    padding: 20px;
    font-size: 12px;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
  }
}