/* ============================================================
   LLLAZ — 技术展示
   无依赖 · 系统字体 · 暗色
   ============================================================ */

:root {
  --bg: #070809;
  --bg-soft: #0a0c0e;
  --panel: #0e1013;
  --panel-2: #121519;
  --line: #1d2229;
  --line-soft: #151a1f;
  --text: #eaedf0;
  --muted: #9aa1aa;
  --dim: #666d78;
  --acid: #c6ff3d;
  --acid-dim: #9dc722;
  --cyan: #5ce1ff;
  --warn: #ffb86b;
  --radius: 14px;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Code", Menlo,
    Consolas, "Liberation Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

::selection {
  background: var(--acid);
  color: #0a0b0c;
}

img,
canvas,
svg {
  display: block;
  max-width: 100%;
}

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

h1,
h2,
h3,
h4,
p,
ul,
ol,
figure {
  margin: 0;
}

ul,
ol {
  padding: 0;
  list-style: none;
}

button {
  font: inherit;
  color: inherit;
  border: 0;
  background: none;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--acid);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap {
  width: min(1180px, 100% - 3rem);
  margin-inline: auto;
}

.wrap-narrow {
  width: min(860px, 100% - 3rem);
  margin-inline: auto;
}

.mono {
  font-family: var(--mono);
  font-variant-ligatures: none;
}

.dim {
  color: var(--dim);
}

.acid {
  color: var(--acid);
}

/* ---------- 顶部 ---------- */

.site-head {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line-soft);
}

.site-head__in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  height: 64px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.9rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.brand b {
  font-weight: 600;
}

.brand .dot {
  color: var(--acid);
}

.brand small {
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--dim);
  padding-left: 0.6rem;
  border-left: 1px solid var(--line);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.6rem;
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.site-nav a {
  position: relative;
  padding: 0.35rem 0;
  transition: color 0.2s;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--text);
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--acid);
  transition: right 0.35s var(--ease);
}

.site-nav a:hover::after,
.site-nav a[aria-current="page"]::after {
  right: 0;
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  min-height: min(88vh, 820px);
  display: flex;
  align-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
  isolation: isolate;
}

.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  opacity: 0.9;
}

.hero__grid {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(
    ellipse 70% 60% at 50% 45%,
    #000 30%,
    transparent 78%
  );
  opacity: 0.7;
  pointer-events: none;
}

.hero__glow {
  position: absolute;
  z-index: -1;
  width: 62vw;
  height: 62vw;
  max-width: 780px;
  max-height: 780px;
  right: -12vw;
  top: -18vw;
  background: radial-gradient(
    circle,
    rgba(198, 255, 61, 0.12),
    transparent 62%
  );
  filter: blur(30px);
  pointer-events: none;
}

.hero__in {
  padding: clamp(4rem, 12vh, 8rem) 0 clamp(3.5rem, 9vh, 6rem);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--dim);
}

.eyebrow::before {
  content: "";
  width: 34px;
  height: 1px;
  background: var(--acid);
  opacity: 0.8;
}

.hero h1 {
  margin: 1.6rem 0 0;
  font-size: clamp(2.6rem, 7.2vw, 5.4rem);
  line-height: 1.04;
  letter-spacing: -0.045em;
  font-weight: 600;
  max-width: 22ch;
}

.hero h1 em {
  font-style: normal;
  color: var(--acid);
}

.hero h1 .thin {
  color: var(--dim);
  font-weight: 400;
}

.hero__lede {
  margin-top: 1.8rem;
  max-width: 46ch;
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.12rem);
  line-height: 1.85;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.9rem;
  margin-top: 2.4rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.8rem 1.3rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--text);
  transition: border-color 0.25s, background 0.25s, transform 0.25s var(--ease);
}

.btn:hover {
  border-color: var(--acid);
  transform: translateY(-1px);
}

.btn--solid {
  background: var(--acid);
  color: #0a0b0c;
  border-color: var(--acid);
  font-weight: 600;
}

.btn--solid:hover {
  background: #d4ff6d;
  border-color: #d4ff6d;
}

.btn__arrow {
  transition: transform 0.25s var(--ease);
}

.btn:hover .btn__arrow {
  transform: translateX(3px);
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(3rem, 7vh, 5rem);
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}

.stat {
  background: rgba(10, 12, 14, 0.72);
  padding: 1.1rem 1.2rem;
}

.stat dt {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dim);
}

.stat dd {
  margin: 0.4rem 0 0;
  font-family: var(--mono);
  font-size: clamp(1.15rem, 2.4vw, 1.55rem);
  letter-spacing: -0.02em;
  color: var(--text);
}

.stat dd span {
  font-size: 0.7em;
  color: var(--dim);
  margin-left: 0.2em;
}

/* ---------- 章节 ---------- */

.section {
  padding: clamp(4.5rem, 10vw, 8rem) 0;
  border-bottom: 1px solid var(--line-soft);
}

.section__head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.4rem 2rem;
  align-items: start;
  margin-bottom: 3rem;
}

.section__index {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--acid);
  padding-top: 0.55rem;
}

.section__title {
  font-size: clamp(1.6rem, 3.6vw, 2.5rem);
  line-height: 1.2;
  letter-spacing: -0.035em;
  font-weight: 600;
}

.section__title small {
  display: block;
  margin-top: 0.5rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--dim);
}

.section__lede {
  grid-column: 2;
  max-width: 56ch;
  color: var(--muted);
  margin-top: -0.8rem;
}

/* ---------- 能力 ---------- */

.cap-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}

.cap {
  background: var(--bg-soft);
  padding: clamp(1.6rem, 3vw, 2.4rem);
  transition: background 0.3s;
}

.cap:hover {
  background: var(--panel);
}

.cap__no {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--dim);
}

.cap h3 {
  margin: 0.9rem 0 0.7rem;
  font-size: 1.16rem;
  letter-spacing: -0.01em;
  font-weight: 600;
}

.cap p {
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.8;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 1.3rem;
}

.tags li {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  padding: 0.22rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.tags li.hot {
  color: var(--acid);
  border-color: color-mix(in srgb, var(--acid) 35%, transparent);
}

/* ---------- 实验室 ---------- */

.lab-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.2rem;
}

.lab-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 260px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--panel), var(--bg-soft));
  overflow: hidden;
  transition: border-color 0.3s, transform 0.4s var(--ease);
}

.lab-card:hover {
  border-color: color-mix(in srgb, var(--acid) 45%, var(--line));
  transform: translateY(-3px);
}

.lab-card__art {
  position: relative;
  height: 132px;
  border-bottom: 1px solid var(--line-soft);
  background: #08090b;
  overflow: hidden;
}

.lab-card__art canvas {
  width: 100%;
  height: 100%;
  opacity: 0.92;
}

.lab-card__body {
  padding: 1.3rem 1.4rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  flex: 1;
}

.lab-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dim);
}

.lab-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.lab-card p {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.75;
}

.lab-card__go {
  margin-top: auto;
  padding-top: 0.9rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--acid);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.lab-card__go svg {
  transition: transform 0.3s var(--ease);
}

.lab-card:hover .lab-card__go svg {
  transform: translateX(4px);
}

/* ---------- 架构 ---------- */

.arch {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.arch__copy p {
  color: var(--muted);
  margin-bottom: 1.1rem;
  max-width: 48ch;
}

.arch__copy strong {
  color: var(--text);
  font-weight: 600;
}

.steps {
  margin-top: 1.6rem;
  border-top: 1px solid var(--line-soft);
}

.steps li {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  gap: 0.9rem;
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 0.92rem;
  color: var(--muted);
}

.steps li b {
  font-family: var(--mono);
  font-weight: 400;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--acid);
}

.arch__fig {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: radial-gradient(
      120% 100% at 80% 0%,
      rgba(92, 225, 255, 0.06),
      transparent 60%
    ),
    #0a0c0e;
  padding: clamp(1.2rem, 3vw, 2rem);
}

.arch__fig figcaption {
  margin-top: 1.1rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--dim);
  line-height: 1.7;
}

.flow {
  display: grid;
  gap: 0.7rem;
}

.flow__row {
  display: flex;
  align-items: stretch;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.node {
  flex: 1 1 0;
  min-width: 118px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  padding: 0.7rem 0.85rem;
}

.node span {
  display: block;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
}

.node b {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.86rem;
  font-weight: 500;
}

.node--acid {
  border-color: color-mix(in srgb, var(--acid) 40%, var(--line));
  background: color-mix(in srgb, var(--acid) 7%, var(--panel));
}

.node--acid b {
  color: var(--acid);
}

.node--ghost {
  border-style: dashed;
  background: transparent;
}

.flow__arrow {
  align-self: center;
  color: var(--dim);
  font-family: var(--mono);
  font-size: 0.8rem;
}

.flow__note {
  display: flex;
  gap: 0.55rem;
  align-items: flex-start;
  margin-top: 0.9rem;
  padding-top: 0.9rem;
  border-top: 1px dashed var(--line);
  font-size: 0.78rem;
  color: var(--dim);
  line-height: 1.7;
}

.flow__note b {
  color: var(--warn);
  font-weight: 500;
}

/* ---------- 指标 ---------- */

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: 2.6rem;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}

.metric {
  background: var(--bg-soft);
  padding: 1.1rem 1.2rem;
}

.metric dt {
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
}

.metric dd {
  margin: 0.35rem 0 0;
  font-family: var(--mono);
  font-size: 1.2rem;
  letter-spacing: -0.01em;
}

.metric dd.ok {
  color: var(--acid);
}

/* ---------- 工具箱 ---------- */

.tools {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2rem 3rem;
}

.tools h3 {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dim);
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 0.6rem;
}

.tools ul li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.4rem 0;
  font-size: 0.9rem;
  color: var(--muted);
  border-bottom: 1px solid var(--line-soft);
}

.tools ul li span {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--dim);
  padding-top: 0.15rem;
  white-space: nowrap;
}

/* ---------- 页脚 ---------- */

.site-foot {
  padding: 3.5rem 0 3rem;
  font-size: 0.84rem;
  color: var(--dim);
}

.site-foot__in {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2rem;
  align-items: flex-start;
}

.site-foot__brand {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.site-foot p {
  margin-top: 0.6rem;
  max-width: 46ch;
  line-height: 1.8;
}

.site-foot__meta {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-align: right;
}

.site-foot__meta a:hover {
  color: var(--acid);
}

.gongan-line {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  justify-content: flex-end;
}

.gongan-line img {
  width: 20px;
  height: 20px;
  flex: none;
  opacity: 0.9;
}

.gongan-line:hover img {
  opacity: 1;
}

.status-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 0.5rem;
  border-radius: 50%;
  background: var(--acid);
  box-shadow: 0 0 0 0 rgba(198, 255, 61, 0.6);
  animation: pulse 2.6s infinite;
  vertical-align: middle;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(198, 255, 61, 0.5);
  }
  70% {
    box-shadow: 0 0 0 7px rgba(198, 255, 61, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(198, 255, 61, 0);
  }
}

/* ---------- 滚动入场 ---------- */

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
  transition-delay: var(--d, 0ms);
}

[data-reveal].is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .status-dot {
    animation: none;
  }
}

/* ============================================================
   实验室内页
   ============================================================ */

.lab-shell {
  padding: 2.2rem 0 4rem;
}

.lab-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--dim);
}

.lab-crumbs a:hover {
  color: var(--text);
}

.lab-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.2rem;
  margin: 1.6rem 0 1.4rem;
}

.lab-head h1 {
  font-size: clamp(1.8rem, 4.4vw, 2.9rem);
  letter-spacing: -0.04em;
  line-height: 1.15;
  font-weight: 600;
}

.lab-head p {
  margin-top: 0.7rem;
  max-width: 60ch;
  color: var(--muted);
  font-size: 0.95rem;
}

.lab-head__tag {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--acid);
  border: 1px solid color-mix(in srgb, var(--acid) 35%, transparent);
  border-radius: 999px;
  padding: 0.35rem 0.8rem;
  white-space: nowrap;
}

.stage {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #06070a;
  overflow: hidden;
}

.stage canvas {
  width: 100%;
  display: block;
  touch-action: none;
}

.stage__hud {
  position: absolute;
  top: 0.8rem;
  left: 0.9rem;
  right: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
  pointer-events: none;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.92), 0 0 12px rgba(0, 0, 0, 0.7);
}

.stage__hud span b {
  color: var(--acid);
  font-weight: 500;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1rem;
}

.controls .btn {
  padding: 0.55rem 1rem;
  font-size: 0.72rem;
  background: var(--panel);
}

.controls .btn[aria-pressed="true"] {
  border-color: var(--acid);
  color: var(--acid);
}

.control-group {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--muted);
}

.control-group input[type="range"] {
  width: 96px;
  accent-color: var(--acid);
}

.control-group input[type="number"] {
  width: 66px;
  padding: 0.15rem 0.35rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #0a0c0e;
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.7rem;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  margin-top: 1.2rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--dim);
}

.legend i {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 2px;
  margin-right: 0.4rem;
  vertical-align: middle;
}

.lab-note {
  margin-top: 2.4rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.2rem;
}

.lab-note article {
  border-left: 1px solid var(--line);
  padding-left: 1rem;
}

.lab-note h3 {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 0.5rem;
}

.lab-note p {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.8;
}

.lab-next {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line-soft);
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--dim);
}

.lab-next a:hover {
  color: var(--acid);
}

/* ---------- 404 ---------- */

.notfound {
  min-height: 62vh;
  display: grid;
  place-content: center;
  text-align: center;
  padding: 4rem 0;
}

.notfound b {
  font-family: var(--mono);
  font-size: clamp(3rem, 12vw, 6rem);
  letter-spacing: -0.04em;
  color: var(--acid);
  line-height: 1;
}

.notfound p {
  margin: 1.2rem auto 2rem;
  color: var(--muted);
  max-width: 40ch;
}

/* ---------- 响应式 ---------- */

@media (max-width: 900px) {
  .arch {
    grid-template-columns: 1fr;
  }
  .tools {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .hero__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .wrap,
  .wrap-narrow {
    width: min(1180px, 100% - 2rem);
  }
  .site-nav {
    gap: 1rem;
    font-size: 0.7rem;
  }
  .brand small {
    display: none;
  }
  .cap-grid,
  .lab-grid {
    grid-template-columns: 1fr;
  }
  .section__head {
    grid-template-columns: 1fr;
    gap: 0.6rem;
  }
  .section__lede {
    grid-column: 1;
    margin-top: 0.4rem;
  }
  .section__index {
    padding-top: 0;
  }
  .hero h1 {
    letter-spacing: -0.035em;
  }
  .tools {
    grid-template-columns: 1fr;
    gap: 1.6rem;
  }
  .site-foot__meta {
    text-align: left;
  }
  .site-head__in {
    height: 56px;
  }
}