:root {
  --carbon: #11110f;
  --carbon-soft: #191916;
  --darkroom: #2a211c;
  --darkroom-light: #3a2d25;
  --amber: #d5a85b;
  --amber-bright: #f1c878;
  --amber-faint: rgba(213, 168, 91, 0.12);
  --slate: #6b7c88;
  --slate-light: #9aa8b1;
  --paper: #e8e5de;
  --paper-dim: #bbb8b0;
  --signal: #9eb28b;
  --danger: #c8816e;
  --line: rgba(232, 229, 222, 0.16);
  --line-strong: rgba(232, 229, 222, 0.28);
  --display: "Songti SC", "STSong", "Noto Serif CJK SC", serif;
  --body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, monospace;
  --sidebar: 248px;
  --max-width: 1460px;
  --section-space: clamp(5.5rem, 9vw, 9rem);
}

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

html {
  color-scheme: dark;
  scroll-behavior: smooth;
  scroll-padding-top: 2rem;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--carbon);
  color: var(--paper);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
}

button,
input,
select {
  font: inherit;
}

button,
a,
input,
select,
summary {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
}

button {
  color: inherit;
}

::selection {
  background: var(--amber);
  color: var(--carbon);
}

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

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 1rem;
  left: 1rem;
  transform: translateY(-200%);
  padding: 0.7rem 1rem;
  background: var(--paper);
  color: var(--carbon);
}

.skip-link:focus {
  transform: translateY(0);
}

.ambient {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(circle at 82% 8%, rgba(107, 124, 136, 0.15), transparent 27rem),
    radial-gradient(circle at 52% 46%, rgba(213, 168, 91, 0.055), transparent 36rem),
    linear-gradient(120deg, transparent 0 48%, rgba(255, 255, 255, 0.018) 48% 49%, transparent 49% 100%);
}

.ambient::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.18;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.12'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
}

.script-index {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 20;
  width: var(--sidebar);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 2rem 1.5rem 1.5rem;
  border-right: 1px solid var(--line);
  background: rgba(17, 17, 15, 0.88);
  backdrop-filter: blur(14px);
}

.wordmark {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--paper);
  font-family: var(--mono);
  font-size: 0.72rem;
  line-height: 1.45;
  letter-spacing: 0.08em;
  text-decoration: none;
}

.wordmark-mark {
  display: grid;
  width: 2.7rem;
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid var(--amber);
  color: var(--amber-bright);
  font-family: var(--display);
  font-size: 1.35rem;
}

.edition {
  margin: 1.4rem 0 0;
  color: var(--slate-light);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
}

.script-index nav {
  display: grid;
  gap: 0.15rem;
  margin: 2rem 0;
}

.script-index nav a {
  position: relative;
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  gap: 0.25rem;
  align-items: center;
  min-height: 2.9rem;
  padding: 0 0.6rem;
  color: var(--paper-dim);
  font-size: 0.88rem;
  text-decoration: none;
  transition: color 160ms ease, background 160ms ease;
}

.script-index nav a span {
  color: var(--slate-light);
  font-family: var(--mono);
  font-size: 0.66rem;
}

.script-index nav a::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 -1.52rem;
  width: 2px;
  background: transparent;
}

.script-index nav a:hover,
.script-index nav a.active {
  background: var(--amber-faint);
  color: var(--paper);
}

.script-index nav a.active::before {
  background: var(--amber);
}

.index-foot {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.25rem 0.55rem;
  color: var(--slate-light);
  font-family: var(--mono);
  font-size: 0.62rem;
  line-height: 1.5;
}

.index-foot span:last-child {
  grid-column: 2;
}

.status-dot {
  width: 0.5rem;
  height: 0.5rem;
  margin-top: 0.25rem;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 4px rgba(158, 178, 139, 0.12);
}

.mobile-header {
  display: none;
}

main,
footer {
  margin-left: var(--sidebar);
}

.section-shell {
  width: min(100%, var(--max-width));
  margin: 0 auto;
  padding: var(--section-space) clamp(2rem, 5vw, 5.5rem);
  border-bottom: 1px solid var(--line);
}

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: clamp(4rem, 8vw, 8rem);
  overflow: hidden;
}

.hero-kicker {
  display: flex;
  justify-content: space-between;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line-strong);
  color: var(--slate-light);
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(20rem, 0.72fr);
  gap: clamp(3rem, 7vw, 7rem);
  align-items: end;
  padding: clamp(3.5rem, 7vw, 7rem) 0;
}

.eyebrow,
.section-number,
.card-label,
.desk-tag {
  margin: 0 0 1.25rem;
  color: var(--amber-bright);
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p,
blockquote {
  text-wrap: pretty;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--display);
  font-weight: 500;
}

h1 {
  max-width: 13ch;
  font-size: clamp(3.25rem, 7vw, 7.4rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

h1 em {
  color: var(--amber-bright);
  font-style: normal;
}

h2 {
  font-size: clamp(2.2rem, 4.6vw, 4.8rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  line-height: 1.28;
}

.lede {
  max-width: 48rem;
  margin: 2.2rem 0 0;
  color: var(--paper-dim);
  font-size: clamp(1rem, 1.3vw, 1.18rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2.2rem;
}

.button {
  min-height: 3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.7rem 1.15rem;
  border: 1px solid transparent;
  border-radius: 0;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: transform 160ms ease, background 160ms ease, color 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  background: var(--amber);
  color: var(--carbon);
}

.button.primary:hover {
  background: var(--amber-bright);
}

.button.ghost {
  border-color: var(--line-strong);
  background: transparent;
  color: var(--paper);
}

.button.ghost:hover {
  border-color: var(--amber);
  color: var(--amber-bright);
}

.hero-verdict {
  position: relative;
  padding: 1.5rem 0 0 1.5rem;
  border-top: 2px solid var(--amber);
  border-left: 1px solid var(--line);
}

.hero-verdict::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1.25rem;
  width: 4.4rem;
  height: 0.55rem;
  background: repeating-linear-gradient(90deg, var(--amber) 0 5px, transparent 5px 10px);
  opacity: 0.55;
}

.hero-verdict blockquote {
  margin: 0 0 2rem;
  font-family: var(--display);
  font-size: clamp(1.45rem, 2.3vw, 2.2rem);
  line-height: 1.3;
}

.hero-verdict dl {
  margin: 0;
}

.hero-verdict dl div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem 0;
  border-top: 1px solid var(--line);
}

.hero-verdict dt {
  color: var(--slate-light);
  font-size: 0.78rem;
}

.hero-verdict dd {
  margin: 0;
  color: var(--amber-bright);
  font-family: var(--mono);
  font-size: 0.78rem;
  text-align: right;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.hero-metrics div {
  min-height: 7rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 1rem clamp(0.8rem, 2vw, 1.5rem);
  border-right: 1px solid var(--line);
}

.hero-metrics div:last-child {
  border-right: 0;
}

.hero-metrics strong {
  font-family: var(--mono);
  font-size: clamp(1.8rem, 3vw, 2.7rem);
  line-height: 1;
}

.hero-metrics span {
  margin-top: 0.55rem;
  color: var(--slate-light);
  font-size: 0.74rem;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(8rem, 0.42fr) minmax(0, 1.4fr);
  gap: clamp(2rem, 7vw, 7rem);
  align-items: start;
  margin-bottom: clamp(3rem, 6vw, 6rem);
}

.section-heading > div > p {
  max-width: 58rem;
  margin: 1.35rem 0 0;
  color: var(--paper-dim);
}

.contact-sheet {
  position: relative;
  margin-inline: calc(clamp(2rem, 5vw, 5.5rem) * -1);
  padding: 2.9rem clamp(2rem, 5vw, 5.5rem);
  background:
    linear-gradient(90deg, rgba(213, 168, 91, 0.07), transparent 18%, transparent 82%, rgba(213, 168, 91, 0.07)),
    #0b0b0a;
  box-shadow: inset 0 0 70px rgba(0, 0, 0, 0.72);
  overflow: hidden;
}

.film-edge {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1.15rem;
  background: repeating-linear-gradient(90deg, transparent 0 1.2rem, rgba(232, 229, 222, 0.25) 1.2rem 2.25rem, transparent 2.25rem 3.4rem);
}

.film-edge.top { top: 0.55rem; }
.film-edge.bottom { bottom: 0.55rem; }

.shot-strip {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(12.5rem, 1fr);
  gap: 0.55rem;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--amber) transparent;
  scroll-snap-type: x proximity;
}

.shot-card {
  position: relative;
  min-height: 11.5rem;
  padding: 1rem;
  border: 1px solid rgba(232, 229, 222, 0.17);
  background:
    linear-gradient(180deg, rgba(232, 229, 222, 0.035), transparent 45%),
    var(--carbon-soft);
  color: var(--paper);
  cursor: pointer;
  text-align: left;
  scroll-snap-align: start;
  transition: border-color 180ms ease, transform 180ms ease, background 180ms ease;
}

.shot-card::before {
  content: attr(data-frame);
  display: block;
  margin-bottom: 2.6rem;
  color: var(--slate-light);
  font-family: var(--mono);
  font-size: 0.62rem;
}

.shot-card strong {
  display: block;
  font-family: var(--display);
  font-size: 1.45rem;
  font-weight: 500;
}

.shot-card span {
  display: block;
  margin-top: 0.45rem;
  color: var(--slate-light);
  font-size: 0.74rem;
}

.shot-card:hover,
.shot-card.active {
  border-color: var(--amber);
  background:
    radial-gradient(circle at 85% 12%, rgba(213, 168, 91, 0.15), transparent 40%),
    var(--darkroom);
  transform: translateY(-3px);
}

.shot-card.active::after {
  content: "SELECTED";
  position: absolute;
  right: 0.75rem;
  top: 0.75rem;
  color: var(--amber-bright);
  font-family: var(--mono);
  font-size: 0.52rem;
  letter-spacing: 0.08em;
}

.router-console {
  display: grid;
  grid-template-columns: minmax(15rem, 0.48fr) minmax(0, 1.4fr);
  gap: clamp(2rem, 5vw, 5rem);
  padding-top: 3rem;
}

.priority-control {
  margin: 0;
  padding: 0;
  border: 0;
}

.priority-control legend {
  margin-bottom: 1.2rem;
  font-family: var(--display);
  font-size: 1.2rem;
}

.priority-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.55rem;
}

.priority-option {
  position: relative;
}

.priority-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.priority-option label {
  min-height: 2.75rem;
  display: flex;
  align-items: center;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--line);
  color: var(--paper-dim);
  cursor: pointer;
  font-size: 0.74rem;
}

.priority-option input:focus-visible + label {
  outline: 2px solid var(--amber-bright);
  outline-offset: 3px;
}

.priority-option input:checked + label {
  border-color: var(--amber);
  background: var(--amber-faint);
  color: var(--amber-bright);
}

.route-result {
  min-height: 15rem;
}

.route-head {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line-strong);
}

.route-head p {
  margin: 0;
  color: var(--slate-light);
  font-family: var(--mono);
  font-size: 0.68rem;
}

.route-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 1px;
  background: var(--line);
}

.route-card {
  position: relative;
  min-height: 14rem;
  padding: 1.25rem;
  background: var(--carbon);
}

.route-card:first-child {
  background: var(--darkroom);
}

.route-rank {
  display: flex;
  justify-content: space-between;
  color: var(--slate-light);
  font-family: var(--mono);
  font-size: 0.62rem;
}

.route-card h3 {
  margin-top: 1.5rem;
  color: var(--paper);
}

.route-card > p {
  margin: 0.8rem 0 0;
  color: var(--paper-dim);
  font-size: 0.8rem;
}

.route-card a {
  position: absolute;
  left: 1.25rem;
  bottom: 1.1rem;
  color: var(--amber-bright);
  font-family: var(--mono);
  font-size: 0.65rem;
  text-decoration: none;
}

.route-card a:hover {
  text-decoration: underline;
}

.filter-desk {
  display: grid;
  grid-template-columns: minmax(12rem, 1.4fr) repeat(5, minmax(8.5rem, 1fr));
  gap: 1px;
  padding: 1px;
  background: var(--line-strong);
}

.filter-desk label,
.cost-controls label {
  display: grid;
  gap: 0.55rem;
}

.filter-desk label {
  padding: 0.8rem;
  background: var(--carbon);
}

.filter-desk label > span,
.cost-controls label > span {
  color: var(--slate-light);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.07em;
}

.filter-desk input,
.filter-desk select,
.cost-controls select {
  width: 100%;
  min-height: 2.65rem;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  color: var(--paper);
  outline: 0;
  font-size: 0.8rem;
}

.filter-desk input:focus,
.filter-desk select:focus,
.cost-controls select:focus {
  border-bottom-color: var(--amber);
}

.filter-desk select option,
.cost-controls select option {
  background: var(--carbon);
}

.matrix-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin: 2.2rem 0 1rem;
  color: var(--slate-light);
  font-family: var(--mono);
  font-size: 0.68rem;
}

.matrix-toolbar p {
  margin: 0;
}

.matrix-toolbar strong {
  color: var(--paper);
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}

.platform-card {
  min-width: 0;
  background: var(--carbon);
}

.platform-card[open] {
  background: var(--carbon-soft);
}

.platform-card summary {
  min-height: 25rem;
  display: flex;
  flex-direction: column;
  padding: 1.4rem;
  cursor: pointer;
  list-style: none;
}

.platform-card summary::-webkit-details-marker {
  display: none;
}

.platform-card summary::after {
  content: "展开证据 +";
  margin-top: auto;
  padding-top: 1.25rem;
  color: var(--amber-bright);
  font-family: var(--mono);
  font-size: 0.62rem;
}

.platform-card[open] summary::after {
  content: "收起证据 −";
}

.platform-topline {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 1rem;
}

.platform-type,
.score-label {
  color: var(--slate-light);
  font-family: var(--mono);
  font-size: 0.6rem;
  text-transform: uppercase;
}

.score-box {
  display: grid;
  justify-items: end;
}

.score-box strong {
  font-family: var(--mono);
  font-size: 1.7rem;
  line-height: 1;
}

.platform-card h3 {
  margin-top: 2.1rem;
  font-size: 1.75rem;
}

.platform-company {
  margin: 0.3rem 0 0;
  color: var(--slate-light);
  font-size: 0.72rem;
}

.platform-best {
  margin: 1.25rem 0 0;
  color: var(--paper-dim);
  font-size: 0.82rem;
}

.platform-price {
  margin-top: 1.4rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.platform-price strong {
  display: block;
  color: var(--amber-bright);
  font-family: var(--mono);
  font-size: 0.86rem;
}

.platform-price span {
  display: block;
  margin-top: 0.35rem;
  color: var(--slate-light);
  font-size: 0.66rem;
  line-height: 1.5;
}

.score-bars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.35rem;
  margin-top: 1.25rem;
}

.score-bars div {
  min-width: 0;
}

.score-bars span {
  display: block;
  overflow: hidden;
  color: var(--slate-light);
  font-family: var(--mono);
  font-size: 0.52rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bar-track {
  height: 2px;
  margin-top: 0.4rem;
  background: var(--line);
}

.bar-track i {
  display: block;
  height: 100%;
  background: var(--amber);
}

.platform-detail {
  padding: 0 1.4rem 1.4rem;
  border-top: 1px solid var(--line);
}

.detail-block {
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.detail-block:last-child {
  border-bottom: 0;
}

.detail-block dt {
  color: var(--slate-light);
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.05em;
}

.detail-block dd {
  margin: 0.4rem 0 0;
  color: var(--paper-dim);
  font-size: 0.76rem;
}

.capability-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.75rem;
}

.capability-list span,
.desk-tag {
  padding: 0.28rem 0.5rem;
  border: 1px solid var(--line);
  color: var(--slate-light);
  font-family: var(--mono);
  font-size: 0.56rem;
}

.platform-link {
  display: inline-block;
  margin-top: 1rem;
  color: var(--amber-bright);
  font-family: var(--mono);
  font-size: 0.65rem;
  text-decoration: none;
}

.platform-link:hover {
  text-decoration: underline;
}

.empty-state {
  margin: 0;
  padding: 5rem 1rem;
  border: 1px solid var(--line);
  color: var(--slate-light);
  text-align: center;
}

.cost-section {
  position: relative;
  background: var(--paper);
  color: var(--carbon);
}

.cost-section::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(112deg, transparent 0 70%, rgba(42, 33, 28, 0.07) 70% 70.2%, transparent 70.2%);
}

.light-heading .section-number,
.cost-section .card-label {
  color: #7c5b28;
}

.light-heading > div > p {
  color: #56544e;
}

.cost-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(16rem, 0.7fr) minmax(19rem, 1fr) minmax(15rem, 0.62fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: stretch;
}

.cost-controls {
  display: grid;
  align-content: start;
  gap: 2rem;
  padding-top: 1rem;
}

.cost-controls label > span {
  color: #68655e;
}

.cost-controls select {
  border-bottom-color: rgba(17, 17, 15, 0.25);
  color: var(--carbon);
}

.cost-controls select option {
  background: var(--paper);
}

.cost-controls output {
  float: right;
  color: var(--carbon);
  font-family: var(--mono);
}

input[type="range"] {
  width: 100%;
  accent-color: var(--darkroom);
}

.cost-ticket {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 23rem;
  padding: 2rem;
  background: var(--darkroom);
  color: var(--paper);
  box-shadow: 1.2rem 1.2rem 0 rgba(42, 33, 28, 0.12);
}

.cost-ticket::before,
.cost-ticket::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 0.7rem;
  background: repeating-linear-gradient(90deg, var(--paper) 0 0.7rem, transparent 0.7rem 1.4rem);
}

.cost-ticket::before { top: -1px; }
.cost-ticket::after { bottom: -1px; }

.ticket-label {
  color: var(--amber-bright);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
}

.ticket-cost {
  margin-top: 1.5rem;
  font-family: var(--mono);
  font-size: clamp(3.5rem, 7vw, 6.5rem);
  line-height: 1;
  letter-spacing: -0.08em;
}

.ticket-cost small {
  margin-left: 0.35rem;
  font-size: 1rem;
  letter-spacing: 0;
}

.ticket-formula {
  margin: 1.2rem 0 0;
  color: var(--paper-dim);
  font-family: var(--mono);
  font-size: 0.68rem;
}

.ticket-platform {
  margin: 2rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  color: var(--paper-dim);
  font-size: 0.75rem;
}

.cost-note {
  align-self: center;
  padding: 1.4rem 0 1.4rem 1.4rem;
  border-left: 2px solid #7c5b28;
}

.cost-note p:last-child {
  margin: 0;
  color: #56544e;
  font-size: 0.82rem;
}

.workflow-intro {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 2rem;
  margin-bottom: 2.5rem;
  padding: 1.4rem 0 1.4rem 1.4rem;
  border-left: 2px solid var(--amber);
}

.workflow-intro h3 {
  max-width: 44rem;
}

.desk-tag {
  display: inline-block;
  margin: 0 0 0.8rem;
  color: var(--amber-bright);
}

.workflow-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
  list-style: none;
  counter-reset: stage;
}

.workflow-stage {
  counter-increment: stage;
  display: grid;
  grid-template-columns: 5rem minmax(11rem, 0.6fr) minmax(0, 1fr) 2.5rem;
  gap: 1rem;
  align-items: center;
  min-height: 7rem;
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--line);
}

.workflow-stage::before {
  content: counter(stage, decimal-leading-zero);
  color: var(--amber-bright);
  font-family: var(--mono);
  font-size: 0.75rem;
}

.workflow-stage h3 {
  font-size: 1.35rem;
}

.stage-summary p {
  margin: 0.25rem 0 0;
  color: var(--slate-light);
  font-family: var(--mono);
  font-size: 0.6rem;
}

.stage-output {
  color: var(--paper-dim);
  font-size: 0.78rem;
}

.stage-output strong {
  color: var(--paper);
  font-weight: 500;
}

.stage-toggle {
  width: 2.4rem;
  height: 2.4rem;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  font-family: var(--mono);
}

.stage-toggle:hover {
  border-color: var(--amber);
  color: var(--amber-bright);
}

.stage-gate {
  grid-column: 2 / -1;
  display: none;
  margin: -0.3rem 0 0;
  padding: 1rem;
  border-left: 1px solid var(--amber);
  background: var(--amber-faint);
  color: var(--paper-dim);
  font-size: 0.78rem;
}

.workflow-stage.open .stage-gate {
  display: block;
}

.compliance-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 4rem;
  background: var(--line);
}

.compliance-board > div {
  min-height: 19rem;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  background: var(--darkroom);
}

.compliance-board > div:last-child {
  background: var(--carbon-soft);
}

.compliance-board p:last-child {
  color: var(--paper-dim);
  font-size: 0.85rem;
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}

.stack-card {
  position: relative;
  min-height: 30rem;
  display: flex;
  flex-direction: column;
  padding: 1.6rem;
  background: var(--carbon);
}

.stack-card.recommended {
  background:
    linear-gradient(180deg, rgba(213, 168, 91, 0.1), transparent 45%),
    var(--darkroom);
}

.stack-card .stack-label {
  display: flex;
  justify-content: space-between;
  color: var(--slate-light);
  font-family: var(--mono);
  font-size: 0.62rem;
}

.stack-card h3 {
  margin-top: 2.5rem;
  font-size: 2rem;
}

.stack-fit {
  margin: 0.5rem 0 0;
  color: var(--amber-bright);
  font-family: var(--mono);
  font-size: 0.67rem;
}

.stack-route {
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
}

.stack-route li {
  position: relative;
  padding: 0.75rem 0 0.75rem 1.2rem;
  border-top: 1px solid var(--line);
  color: var(--paper-dim);
  font-size: 0.78rem;
}

.stack-route li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--amber);
}

.stack-card .copy-button {
  margin-top: auto;
  align-self: start;
}

.five-shot-note {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2rem;
  align-items: center;
  margin-top: 4rem;
  padding: 2rem;
  border: 1px solid var(--line-strong);
  background: linear-gradient(90deg, rgba(107, 124, 136, 0.13), transparent 55%);
}

.big-number {
  color: var(--amber-bright);
  font-family: var(--mono);
  font-size: clamp(4rem, 8vw, 8rem);
  line-height: 0.8;
}

.five-shot-note p:last-child {
  max-width: 56rem;
  margin-bottom: 0;
  color: var(--paper-dim);
  font-size: 0.82rem;
}

.benchmark-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}

.benchmark-strip > div {
  min-height: 10rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 1rem;
  background: var(--carbon-soft);
}

.benchmark-strip span,
.benchmark-strip small {
  color: var(--slate-light);
  font-family: var(--mono);
  font-size: 0.58rem;
}

.benchmark-strip strong {
  margin: 0.5rem 0;
  color: var(--amber-bright);
  font-family: var(--mono);
  font-size: 1.2rem;
}

.source-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 2.2rem 0 1rem;
}

.chip {
  min-height: 2.65rem;
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--paper-dim);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.64rem;
}

.chip:hover,
.chip.active {
  border-color: var(--amber);
  background: var(--amber-faint);
  color: var(--amber-bright);
}

.source-ledger {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
}

.source-row {
  display: grid;
  grid-template-columns: 2.4rem 1fr auto;
  gap: 0.8rem;
  align-items: center;
  min-height: 5rem;
  padding: 0.75rem 1rem 0.75rem 0;
  border-bottom: 1px solid var(--line);
}

.source-row:nth-child(odd) {
  border-right: 1px solid var(--line);
  padding-right: 1.5rem;
}

.source-row:nth-child(even) {
  padding-left: 1.5rem;
}

.source-index {
  color: var(--slate-light);
  font-family: var(--mono);
  font-size: 0.58rem;
}

.source-row a {
  color: var(--paper);
  font-size: 0.75rem;
  text-decoration: none;
}

.source-row a:hover {
  color: var(--amber-bright);
  text-decoration: underline;
}

.source-meta {
  margin: 0.25rem 0 0;
  color: var(--slate-light);
  font-size: 0.61rem;
}

.source-badge {
  padding: 0.22rem 0.4rem;
  border: 1px solid var(--line);
  color: var(--slate-light);
  font-family: var(--mono);
  font-size: 0.5rem;
  white-space: nowrap;
}

.research-note {
  margin-top: 3rem;
  padding: 1.4rem;
  border-left: 2px solid var(--slate);
  background: rgba(107, 124, 136, 0.09);
}

.research-note p {
  margin: 0;
  color: var(--paper-dim);
  font-size: 0.78rem;
}

footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  padding: 3rem clamp(2rem, 5vw, 5.5rem);
  color: var(--slate-light);
  font-family: var(--mono);
  font-size: 0.68rem;
}

footer > div {
  display: flex;
  align-items: center;
  gap: 1rem;
}

footer p {
  margin: 0;
}

footer small {
  color: var(--slate-light);
}

.toast {
  position: fixed;
  z-index: 100;
  right: 1.5rem;
  bottom: 1.5rem;
  max-width: min(24rem, calc(100vw - 3rem));
  padding: 0.8rem 1rem;
  border: 1px solid var(--amber);
  background: var(--darkroom);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 0.68rem;
  opacity: 0;
  transform: translateY(1rem);
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.reveal-item {
  opacity: 0;
  transform: translateY(1.1rem);
  animation: develop 700ms cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

.reveal-item:nth-child(2) { animation-delay: 100ms; }
.reveal-item:nth-child(3) { animation-delay: 220ms; }

@keyframes develop {
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 1180px) {
  :root { --sidebar: 210px; }

  .filter-desk {
    grid-template-columns: repeat(3, 1fr);
  }

  .platform-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .route-list {
    grid-template-columns: 1fr 1fr;
  }

  .route-card:last-child {
    grid-column: 1 / -1;
  }

  .cost-grid {
    grid-template-columns: 0.85fr 1.15fr;
  }

  .cost-note {
    grid-column: 1 / -1;
  }
}

@media (max-width: 900px) {
  :root { --sidebar: 0px; }

  html { scroll-padding-top: 5rem; }

  .script-index {
    inset: 4.25rem 0 auto;
    width: 100%;
    max-height: calc(100vh - 4.25rem);
    display: none;
    padding: 1rem;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .script-index.open {
    display: flex;
  }

  .script-index > div:first-child,
  .script-index .index-foot {
    display: none;
  }

  .script-index nav {
    margin: 0;
  }

  .script-index nav a::before {
    left: -1rem;
  }

  .mobile-header {
    position: sticky;
    z-index: 50;
    top: 0;
    min-height: 4.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.7rem 1rem;
    border-bottom: 1px solid var(--line);
    background: rgba(17, 17, 15, 0.92);
    backdrop-filter: blur(12px);
  }

  .mobile-header .wordmark-mark {
    width: 2.35rem;
  }

  .menu-toggle {
    min-height: 2.6rem;
    padding: 0.45rem 0.75rem;
    border: 1px solid var(--line-strong);
    background: transparent;
    cursor: pointer;
    font-family: var(--mono);
    font-size: 0.7rem;
  }

  main,
  footer {
    margin-left: 0;
  }

  .hero {
    min-height: auto;
  }

  .hero-grid,
  .section-heading,
  .router-console {
    grid-template-columns: 1fr;
  }

  .hero-verdict {
    max-width: 36rem;
  }

  .section-heading {
    gap: 1rem;
  }

  .section-number {
    margin-bottom: 0;
  }

  .cost-grid {
    grid-template-columns: 1fr;
  }

  .cost-note {
    grid-column: auto;
  }

  .stack-card {
    min-height: auto;
  }

  .stack-grid {
    grid-template-columns: 1fr;
  }

  .stack-card .copy-button {
    margin-top: 2rem;
  }

  .benchmark-strip {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 680px) {
  .section-shell {
    padding: 5rem 1.15rem;
  }

  .hero {
    padding-top: 3.5rem;
  }

  h1 {
    font-size: clamp(3rem, 15vw, 4.8rem);
  }

  h2 {
    font-size: clamp(2.15rem, 11vw, 3.35rem);
  }

  .hero-grid {
    padding: 3.5rem 0;
  }

  .hero-metrics {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-metrics div:nth-child(2) {
    border-right: 0;
  }

  .hero-metrics div:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .contact-sheet {
    margin-inline: -1.15rem;
    padding-inline: 1.15rem;
  }

  .shot-strip {
    grid-auto-columns: 72vw;
  }

  .priority-list,
  .route-list,
  .platform-grid,
  .filter-desk,
  .compliance-board,
  .benchmark-strip,
  .source-ledger {
    grid-template-columns: 1fr;
  }

  .route-card:last-child {
    grid-column: auto;
  }

  .filter-desk label {
    padding: 0.7rem 0.8rem;
  }

  .platform-card summary {
    min-height: 23rem;
  }

  .matrix-toolbar {
    align-items: end;
  }

  .matrix-toolbar p:last-child {
    max-width: 13rem;
    text-align: right;
  }

  .workflow-intro {
    align-items: start;
    flex-direction: column;
  }

  .workflow-stage {
    grid-template-columns: 2.5rem 1fr 2.5rem;
  }

  .stage-output {
    grid-column: 2 / -1;
  }

  .stage-gate {
    grid-column: 2 / -1;
  }

  .compliance-board > div {
    min-height: auto;
  }

  .five-shot-note {
    grid-template-columns: 1fr;
  }

  .source-row,
  .source-row:nth-child(odd),
  .source-row:nth-child(even) {
    grid-template-columns: 2.2rem 1fr;
    padding: 0.8rem 0;
    border-right: 0;
  }

  .source-badge {
    grid-column: 2;
    justify-self: start;
  }

  footer {
    align-items: start;
    flex-direction: column;
    padding-inline: 1.15rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .reveal-item {
    opacity: 1;
    transform: none;
  }
}