@font-face {
  font-family: "Fira Code Local";
  src: url("../assets/fonts/fira-code-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
}

@font-face {
  font-family: "Barlow Condensed Local";
  src: url("../assets/fonts/barlow-condensed-600-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: "Barlow Condensed Local";
  src: url("../assets/fonts/barlow-condensed-800-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 800;
  font-display: swap;
}

@font-face {
  font-family: "Barlow Condensed Local";
  src: url("../assets/fonts/barlow-condensed-900-latin.woff2") format("woff2");
  font-style: normal;
  font-weight: 900;
  font-display: swap;
}

:root {
  --carbon: #090a0c;
  --carbon-2: #121419;
  --paper: #e9e7df;
  --paper-2: #d9d7cf;
  --muted: #a3a8b0;
  --line: rgba(233, 231, 223, 0.18);
  --signal: #d8ff3e;
  --blue: #2c5e98;
  color-scheme: dark;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  background: var(--carbon);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--carbon);
  color: var(--paper);
  font-family: "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
  letter-spacing: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 4px;
}

.dossier-grain {
  position: fixed;
  inset: 0;
  z-index: 9000;
  pointer-events: none;
  opacity: 0.2;
  background-image: url("../assets/film-grain.png");
  background-repeat: repeat;
  background-size: 64px 64px;
  mix-blend-mode: soft-light;
}

.dossier-bar {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 100;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 62px;
  padding: 0 26px;
  border-bottom: 1px solid var(--line);
  background: rgba(9, 10, 12, 0.94);
  backdrop-filter: blur(16px);
  color: var(--muted);
  font-family: "Fira Code Local", monospace;
  font-size: 8px;
}

.dossier-bar a {
  display: flex;
  gap: 12px;
  align-items: center;
  width: max-content;
  color: var(--signal);
}

.dossier-bar a strong {
  color: var(--paper);
  font-family: "Barlow Condensed Local", "Arial Narrow", Arial, sans-serif;
  font-size: 14px;
  font-weight: 800;
}

.dossier-bar span:last-child {
  justify-self: end;
}

.dossier-rail {
  position: fixed;
  z-index: 90;
  top: 50%;
  left: 22px;
  display: grid;
  gap: 2px;
  transform: translateY(-50%);
}

.dossier-rail a {
  display: grid;
  grid-template-columns: 24px 1fr;
  min-width: 90px;
  padding: 10px 0;
  color: var(--muted);
  font-family: "Fira Code Local", monospace;
  font-size: 8px;
}

.dossier-rail a span {
  color: #555b63;
}

.dossier-rail a.active,
.dossier-rail a.active span,
.dossier-rail a:hover {
  color: var(--signal);
}

.project-loading,
.project-error {
  display: grid;
  min-height: 100svh;
  place-items: center;
  color: var(--muted);
  font-family: "Fira Code Local", monospace;
  font-size: 10px;
}

.dossier-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(380px, 42%);
  min-height: 100svh;
  overflow: hidden;
  background: var(--carbon);
}

.dossier-hero-copy {
  position: relative;
  z-index: 2;
  align-self: center;
  padding: 120px 8vw 120px 10vw;
}

.dossier-command,
.section-index,
.evidence-id,
.evidence-date,
.source-chip,
.capability-cluster,
.dossier-stat span,
.dossier-meta,
.boundary-label {
  font-family: "Fira Code Local", monospace;
}

.dossier-command {
  margin: 0 0 44px;
  color: var(--signal);
  font-size: 9px;
}

.dossier-hero h1 {
  max-width: 900px;
  margin: 0;
  font-family: "Barlow Condensed Local", "Microsoft YaHei", "Arial Narrow", Arial, sans-serif;
  font-size: 104px;
  font-weight: 900;
  line-height: 0.92;
}

.dossier-hero h2 {
  max-width: 700px;
  margin: 30px 0 0;
  color: var(--paper-2);
  font-size: 20px;
  font-weight: 500;
  line-height: 1.5;
}

.dossier-summary {
  max-width: 680px;
  margin: 48px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.dossier-hero-image {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
}

.dossier-hero-image::after {
  position: absolute;
  inset: 0;
  background: rgba(9, 10, 12, 0.2);
  content: "";
}

.dossier-hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 47% 25%;
  filter: grayscale(1) contrast(1.15) brightness(0.65);
}

.dossier-meta {
  position: absolute;
  right: 22px;
  bottom: 22px;
  z-index: 2;
  color: rgba(233, 231, 223, 0.68);
  font-size: 8px;
}

.dossier-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--carbon-2);
}

.dossier-stat {
  min-height: 160px;
  padding: 38px;
  border-right: 1px solid var(--line);
}

.dossier-stat:last-child { border-right: 0; }

.dossier-stat strong {
  display: block;
  margin-bottom: 28px;
  color: var(--signal);
  font-family: "Barlow Condensed Local", "Arial Narrow", Arial, sans-serif;
  font-size: 44px;
}

.dossier-stat span {
  color: var(--muted);
  font-size: 8px;
}

.dossier-section {
  position: relative;
  padding: 150px max(8vw, 100px) 160px;
}

.dossier-section.light {
  background: var(--paper);
  color: var(--carbon);
}

.section-heading {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 40px;
  margin-bottom: 90px;
}

.section-index {
  color: var(--signal);
  font-size: 9px;
}

.light .section-index {
  color: var(--blue);
}

.section-heading h2 {
  max-width: 900px;
  margin: 0;
  font-family: "Barlow Condensed Local", "Microsoft YaHei", "Arial Narrow", Arial, sans-serif;
  font-size: 58px;
  line-height: 1.02;
}

.section-heading p {
  grid-column: 2;
  max-width: 680px;
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.light .section-heading p {
  color: #5b6067;
}

.contract-list {
  border-top: 2px solid currentColor;
}

.contract-row {
  display: grid;
  grid-template-columns: 80px 200px 1fr;
  gap: 30px;
  padding: 30px 0;
  border-bottom: 1px solid rgba(9, 10, 12, 0.22);
}

.contract-row > span {
  color: var(--blue);
  font-family: "Fira Code Local", monospace;
  font-size: 9px;
}

.contract-row h3 {
  margin: 0;
  font-size: 16px;
  font-family: "Barlow Condensed Local", "Microsoft YaHei", "Arial Narrow", Arial, sans-serif;
  font-weight: 800;
}

.contract-row p,
.contract-row ul {
  margin: 0;
  color: #4f5359;
  font-size: 13px;
  line-height: 1.75;
}

.contract-row ul {
  padding-left: 18px;
}

.protocol-section {
  background: #0d1014;
}

.protocol-lead {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.protocol-lead-block {
  min-height: 220px;
  padding: 34px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.protocol-lead-block small,
.protocol-block-index {
  color: var(--signal);
  font-family: "Fira Code Local", monospace;
  font-size: 8px;
}

.protocol-lead-block h3,
.protocol-block h3 {
  margin: 60px 0 18px;
  font-family: "Barlow Condensed Local", "Microsoft YaHei", "Arial Narrow", Arial, sans-serif;
  font-size: 24px;
  font-weight: 800;
}

.protocol-lead-block p {
  max-width: 640px;
  margin: 0;
  color: #c1c5ca;
  font-size: 13px;
  line-height: 1.75;
}

.protocol-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 50px;
  border-top: 1px solid var(--line);
}

.protocol-block {
  min-height: 420px;
  padding: 30px 26px;
  border-right: 1px solid var(--line);
}

.protocol-block:last-child {
  border-right: 0;
}

.protocol-block ol {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: protocol-item;
}

.protocol-block li {
  position: relative;
  padding: 15px 0 15px 34px;
  border-top: 1px solid var(--line);
  color: #b8bdc4;
  font-size: 11px;
  line-height: 1.65;
  counter-increment: protocol-item;
}

.protocol-block li::before {
  position: absolute;
  top: 16px;
  left: 0;
  color: var(--signal);
  font-family: "Fira Code Local", monospace;
  font-size: 7px;
  content: counter(protocol-item, decimal-leading-zero);
}

.source-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 44px;
}

.source-badge {
  display: inline-flex;
  gap: 8px;
  padding: 7px 9px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-family: "Fira Code Local", monospace;
  font-size: 7px;
}

.source-badge b { color: var(--paper); }

.evidence-records {
  border-top: 1px solid var(--line);
}

.evidence-record {
  display: grid;
  grid-template-columns: 150px minmax(250px, 0.68fr) minmax(500px, 1.32fr);
  gap: 36px;
  padding: 42px 0;
  border-bottom: 1px solid var(--line);
}

.record-meta {
  display: grid;
  align-content: start;
  gap: 10px;
}

.evidence-id { color: var(--signal); font-size: 9px; }
.evidence-date { color: var(--muted); font-size: 8px; }
.source-chip { width: max-content; padding: 5px 7px; border: 1px solid var(--line); color: var(--paper-2); font-size: 7px; }

.record-context h3 {
  margin: 0 0 18px;
  font-size: 22px;
  font-family: "Barlow Condensed Local", "Microsoft YaHei", "Arial Narrow", Arial, sans-serif;
  font-weight: 800;
  line-height: 1.25;
}

.record-context p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.7;
}

.evidence-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.evidence-detail {
  padding: 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.evidence-detail small {
  color: var(--signal);
  font-family: "Fira Code Local", monospace;
  font-size: 7px;
}

.evidence-detail h4 {
  margin: 10px 0 8px;
  font-size: 12px;
}

.evidence-detail p {
  margin: 0;
  color: #a9adb3;
  font-size: 10px;
  line-height: 1.65;
}

.evidence-tags {
  grid-column: 3;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: -18px;
}

.evidence-tags span {
  padding: 5px 7px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 8px;
}

.capability-list {
  border-top: 2px solid var(--carbon);
}

.capability-row {
  display: grid;
  grid-template-columns: 160px 200px 1fr 100px;
  gap: 30px;
  align-items: start;
  padding: 28px 0;
  border-bottom: 1px solid rgba(9, 10, 12, 0.2);
}

.capability-cluster {
  color: var(--blue);
  font-size: 8px;
}

.capability-row h3 {
  margin: 0;
  font-size: 17px;
  font-family: "Barlow Condensed Local", "Microsoft YaHei", "Arial Narrow", Arial, sans-serif;
  font-weight: 800;
}

.capability-copy p {
  margin: 0 0 8px;
  color: #53575c;
  font-size: 11px;
  line-height: 1.6;
}

.capability-copy .capability-evidence {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid rgba(9, 10, 12, 0.18);
  color: var(--blue);
  font-family: "Fira Code Local", monospace;
  font-size: 8px;
}

.capability-proof {
  color: var(--blue);
  font-family: "Fira Code Local", monospace;
  font-size: 8px;
  text-align: right;
}

.boundary-section {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 40px;
  min-height: 600px;
  align-content: center;
  background: var(--blue);
  color: #f4f2e9;
}

.boundary-label {
  color: var(--signal);
  font-size: 9px;
}

.boundary-copy h2 {
  max-width: 900px;
  margin: 0 0 34px;
  font-family: "Barlow Condensed Local", "Microsoft YaHei", "Arial Narrow", Arial, sans-serif;
  font-size: 58px;
  line-height: 1.04;
}

.boundary-copy p {
  max-width: 760px;
  margin: 0 0 16px;
  color: rgba(244, 242, 233, 0.92);
  font-size: 14px;
  line-height: 1.8;
}

.boundary-copy a {
  display: inline-block;
  margin-top: 32px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--signal);
  color: var(--signal);
  font-family: "Fira Code Local", monospace;
  font-size: 9px;
}

@media (max-width: 1050px) {
  .dossier-rail { display: none; }
  .dossier-hero h1 { font-size: 68px; }
  .dossier-section { padding-right: 60px; padding-left: 60px; }
  .evidence-record { grid-template-columns: 110px 0.65fr 1.35fr; gap: 24px; }
  .capability-row { grid-template-columns: 120px 170px 1fr 80px; gap: 20px; }
  .protocol-grid { grid-template-columns: repeat(2, 1fr); }
  .protocol-block { min-height: 360px; border-bottom: 1px solid var(--line); }
  .protocol-block:nth-child(2) { border-right: 0; }
}

@media (max-width: 760px) {
  .dossier-bar { grid-template-columns: 1fr auto; height: 56px; padding: 0 14px; }
  .dossier-bar > span:nth-child(2) { display: none; }
  .dossier-hero { grid-template-columns: 1fr; min-height: 100svh; }
  .dossier-hero-copy { padding: 112px 22px 70px; }
  .dossier-hero h1 { font-size: 48px; }
  .dossier-hero h2 { font-size: 17px; }
  .dossier-summary { font-size: 13px; }
  .dossier-hero-image { min-height: 55svh; }
  .dossier-stats { grid-template-columns: repeat(2, 1fr); }
  .dossier-stat:nth-child(2) { border-right: 0; }
  .dossier-stat { min-height: 126px; padding: 24px; border-bottom: 1px solid var(--line); }
  .dossier-stat strong { margin-bottom: 18px; font-size: 34px; }
  .dossier-section { padding: 100px 22px 110px; }
  .section-heading { grid-template-columns: 1fr; gap: 20px; margin-bottom: 60px; }
  .section-heading h2,
  .boundary-copy h2 { font-size: 38px; }
  .section-heading p { grid-column: 1; }
  .contract-row { grid-template-columns: 42px 1fr; gap: 16px; }
  .contract-row > :last-child { grid-column: 2; }
  .protocol-lead { grid-template-columns: 1fr; }
  .protocol-lead-block { min-height: 190px; padding: 26px 22px; }
  .protocol-lead-block h3 { margin-top: 42px; }
  .protocol-grid { grid-template-columns: 1fr; margin-top: 36px; }
  .protocol-block { min-height: auto; padding: 28px 0; border-right: 0; }
  .protocol-block h3 { margin-top: 42px; }
  .evidence-record { grid-template-columns: 1fr; gap: 22px; }
  .record-meta { display: flex; align-items: center; }
  .evidence-detail-grid { grid-template-columns: 1fr; }
  .evidence-tags { grid-column: 1; margin-top: 0; }
  .capability-row { grid-template-columns: 1fr 60px; }
  .capability-cluster { grid-column: 1 / -1; }
  .capability-copy { grid-column: 1 / -1; }
  .capability-proof { grid-column: 2; grid-row: 2; }
  .boundary-section { grid-template-columns: 1fr; gap: 30px; min-height: 620px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .dossier-grain { display: none; }
}