/* Ryan在进化 - personal AI lab archive */

:root {
  --bg: #030504;
  --bg-soft: #070908;
  --surface: rgba(12, 14, 13, 0.74);
  --surface-solid: #0b0e0d;
  --surface-2: rgba(18, 20, 18, 0.72);
  --text: #f2eee4;
  --text-soft: #c4c5bd;
  --muted: #8d928b;
  --faint: #59615d;
  --line: rgba(242, 238, 228, 0.085);
  --line-soft: rgba(242, 238, 228, 0.045);
  --line-strong: rgba(242, 238, 228, 0.16);
  --accent: #d6c8a4;
  --accent-soft: rgba(214, 200, 164, 0.1);
  --signal: #aeb8ac;
  --danger: #d98080;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --container: 1200px;
  --font: Inter, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.018) 0%, transparent 280px),
    var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.72;
  overflow-x: hidden;
  text-rendering: geometricPrecision;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.009) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.009) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.75), transparent 58%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.42;
  background-image: repeating-linear-gradient(
    0deg,
    rgba(255, 255, 255, 0.018) 0,
    rgba(255, 255, 255, 0.018) 1px,
    transparent 1px,
    transparent 3px
  );
  mix-blend-mode: soft-light;
}

main,
header,
footer {
  position: relative;
  z-index: 1;
}

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

button,
input {
  font: inherit;
}

button {
  color: inherit;
}

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

p {
  max-width: 700px;
  color: var(--text-soft);
}

.container {
  width: min(100% - 64px, var(--container));
  margin: 0 auto;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line-soft);
  background: rgba(3, 5, 4, 0.78);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.nav-inner {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: max-content;
}

.logo {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  filter: saturate(0.72) contrast(1.04);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.08;
}

.brand-name {
  color: var(--text);
  font-size: 14px;
  font-weight: 720;
}

.brand-tagline {
  margin-top: 5px;
  color: var(--faint);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  position: relative;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  color: var(--muted);
  font-size: 13px;
  font-weight: 560;
  line-height: 1;
  transition: color 180ms ease, background 180ms ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.032);
}

.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: -9px;
  height: 1px;
  background: rgba(214, 200, 164, 0.72);
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.018);
  cursor: pointer;
  font-size: 18px;
}

.btn {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-sm);
  padding: 11px 18px;
  border: 1px solid var(--line);
  cursor: pointer;
  font-size: 13px;
  font-weight: 680;
  line-height: 1.2;
  transition: border-color 180ms ease, background 180ms ease, color 180ms ease, transform 180ms ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  border-color: rgba(242, 238, 228, 0.72);
  background: #ebe6da;
  color: #090b0a;
}

.btn-primary:hover {
  border-color: #fff8eb;
  background: #fff8eb;
}

.btn-secondary {
  background: transparent;
  color: var(--text);
}

.btn-secondary:hover {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.032);
}

.text-link {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  color: var(--text);
  font-size: 13px;
  font-weight: 700;
  transition: color 180ms ease, opacity 180ms ease;
}

.text-link:hover {
  color: var(--accent);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 128px 0 104px;
  border-bottom: 1px solid var(--line-soft);
}

.hero-home {
  padding-top: 144px;
}

.page-hero {
  padding-bottom: 80px;
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(304px, 0.38fr);
  gap: clamp(48px, 7vw, 112px);
  align-items: end;
}

.hero-copy {
  min-width: 0;
}

.hero-meta,
.eyebrow {
  color: var(--accent);
  font-size: 11px;
  font-weight: 760;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 1000px;
  margin-top: 24px;
  color: var(--text);
  font-size: clamp(54px, 7vw, 108px);
  font-weight: 760;
  letter-spacing: -0.072em;
  line-height: 0.94;
}

.page-hero h1 {
  font-size: clamp(48px, 6.8vw, 88px);
  line-height: 0.98;
}

.hero h1 span {
  display: inline-block;
  color: #d7d5cd;
}

.hero h1 .hero-line {
  display: block;
  color: var(--text);
}

.hero-desc {
  margin-top: 32px;
  color: var(--text-soft);
  font-size: clamp(15.5px, 1.25vw, 18px);
  line-height: 1.92;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}

.hero-visual {
  position: relative;
  min-height: 328px;
  align-self: stretch;
  display: grid;
  align-items: end;
  opacity: 0.86;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--line-strong), transparent);
}

.lab-diagram {
  width: 100%;
  height: auto;
  overflow: visible;
}

.diagram-frame {
  fill: rgba(255, 255, 255, 0.012);
  stroke: var(--line);
  stroke-width: 1;
}

.diagram-line {
  fill: none;
  stroke: rgba(242, 238, 228, 0.22);
  stroke-width: 1;
}

.diagram-line.soft {
  stroke: rgba(242, 238, 228, 0.11);
}

.diagram-node {
  fill: var(--bg);
  stroke: rgba(242, 238, 228, 0.28);
  stroke-width: 1;
}

.diagram-node.filled {
  fill: #ebe6da;
  stroke: #ebe6da;
}

.diagram-mark {
  fill: rgba(214, 200, 164, 0.84);
}

.diagram-text {
  fill: rgba(242, 238, 228, 0.56);
  font-family: var(--font);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.section {
  padding: 112px 0;
}

.section + .section {
  border-top: 1px solid rgba(242, 238, 228, 0.028);
}

.section-heading {
  display: grid;
  gap: 16px;
  margin-bottom: 42px;
}

.section-heading > span {
  color: var(--accent);
  font-size: 11px;
  font-weight: 760;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.section-heading h2,
.community-panel h2,
.apply-panel h2 {
  max-width: 900px;
  color: var(--text);
  font-size: clamp(36px, 4.8vw, 68px);
  font-weight: 740;
  letter-spacing: -0.058em;
  line-height: 1.02;
}

.section-heading p {
  max-width: 640px;
  line-height: 1.86;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(248px, 0.72fr) minmax(0, 1.28fr);
  gap: 88px;
  align-items: start;
}

.archive-list {
  border-top: 1px solid var(--line);
}

.archive-row {
  display: grid;
  grid-template-columns: 48px minmax(112px, 0.72fr) minmax(144px, 0.92fr) minmax(220px, 1.7fr) 92px;
  gap: 24px;
  align-items: baseline;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  transition: color 180ms ease, border-color 180ms ease, padding-left 180ms ease;
}

.archive-row:hover {
  color: var(--text);
  border-color: var(--line-strong);
  padding-left: 8px;
}

.row-index,
.row-status,
.project-kicker,
.log-row time,
.method-list article span,
.index-row.head,
.project-meta dt {
  color: var(--faint);
  font-size: 11px;
  font-weight: 760;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.row-title {
  color: var(--text);
  font-size: 18px;
  font-weight: 760;
  letter-spacing: -0.02em;
}

.row-kind {
  color: var(--text-soft);
}

.row-desc {
  font-size: 14px;
}

.row-status {
  color: var(--signal);
  text-align: right;
}

.project-archive {
  display: grid;
  grid-template-columns: minmax(0, 1.28fr) minmax(280px, 0.72fr);
  gap: 32px;
}

.project-feature,
.compact-card,
.phase-card,
.apply-panel,
.community-panel,
.custom-tools {
  border: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
}

.project-feature {
  display: grid;
  grid-template-columns: 208px minmax(0, 1fr);
  gap: 40px;
  min-height: 384px;
  padding: 32px 0;
  border-width: 1px 0;
}

.project-media {
  display: grid;
  min-height: 224px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.012);
}

.project-media img {
  width: 112px;
  height: 112px;
  border-radius: var(--radius-sm);
  filter: saturate(0.74) contrast(1.02);
}

.project-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: center;
}

.project-copy h3,
.compact-card h3 {
  margin-top: 16px;
  color: var(--text);
  font-size: clamp(32px, 3.8vw, 52px);
  font-weight: 720;
  letter-spacing: -0.052em;
  line-height: 0.96;
}

.compact-card h3 {
  font-size: 30px;
}

.project-summary {
  margin-top: 20px;
}

.project-side {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.compact-card {
  padding: 30px 0;
  border-width: 0 0 1px;
}

.compact-card p {
  margin-top: 14px;
}

.project-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 30px 0;
}

.project-meta.compact {
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 24px 0;
}

.project-meta div {
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.project-meta dd {
  margin-top: 5px;
  color: var(--text-soft);
  font-size: 14px;
}

.index-table {
  margin-top: 32px;
  border-top: 1px solid var(--line);
}

.index-row {
  display: grid;
  grid-template-columns: minmax(112px, 1fr) minmax(112px, 0.82fr) minmax(184px, 1.36fr) minmax(104px, 0.78fr) minmax(80px, 0.6fr);
  gap: 20px;
  align-items: baseline;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  color: var(--text-soft);
  font-size: 14px;
}

.index-row.head {
  color: var(--faint);
}

.index-row a {
  color: var(--text);
  font-weight: 700;
  transition: color 180ms ease;
}

.index-row a:hover {
  color: var(--accent);
}

.stack-index,
.log-list,
.method-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.stack-row,
.log-row,
.method-list article,
.tool-record,
.core-tool,
.custom-tool {
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.stack-row:hover,
.log-row:hover,
.method-list article:hover,
.tool-record:hover,
.core-tool:hover,
.custom-tool:hover {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.014);
}

.stack-row {
  display: grid;
  grid-template-columns: minmax(144px, 0.56fr) minmax(232px, 1.2fr) minmax(248px, 1.36fr);
  gap: 28px;
  padding: 24px 0;
  align-items: baseline;
}

.stack-row span {
  color: var(--accent);
  font-size: 11px;
  font-weight: 760;
  letter-spacing: 0.13em;
}

.stack-row strong {
  color: var(--text);
  font-weight: 680;
}

.stack-row p {
  font-size: 14px;
}

.section-link {
  margin-top: 28px;
}

.log-row {
  display: grid;
  grid-template-columns: 128px minmax(0, 0.95fr) minmax(232px, 1.1fr);
  gap: 24px;
  padding: 24px 0;
  align-items: baseline;
}

.log-row h3 {
  color: var(--text);
  font-size: 18px;
  font-weight: 720;
  line-height: 1.44;
}

.log-row p {
  font-size: 14px;
}

.community-panel,
.apply-panel {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(280px, 1fr) auto;
  gap: 32px;
  align-items: end;
  padding: 36px 0;
  border-width: 1px 0;
}

.community-panel h2,
.apply-panel h2 {
  margin-top: 12px;
  font-size: clamp(30px, 3.4vw, 46px);
}

.community-panel p,
.apply-panel p {
  font-size: 15px;
  line-height: 1.86;
}

.contact-index {
  max-width: 920px;
  border-top: 1px solid var(--line);
}

.contact-index a,
.contact-button {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(136px, 0.48fr) minmax(0, 1fr);
  gap: 28px;
  align-items: baseline;
  padding: 20px 0;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  text-align: left;
  transition: color 180ms ease, border-color 180ms ease, padding-left 180ms ease;
}

.contact-index a:hover,
.contact-button:hover {
  border-color: var(--line-strong);
  padding-left: 8px;
}

.contact-index span,
.contact-button span {
  color: var(--faint);
  font-size: 12px;
  font-weight: 760;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.contact-index strong,
.contact-button strong {
  color: var(--text);
  font-size: 19px;
  font-weight: 680;
  word-break: break-all;
}

.tool-search {
  width: min(100%, 560px);
  min-height: 48px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.018);
  color: var(--text);
  outline: none;
  padding: 12px 15px;
  transition: border-color 180ms ease, background 180ms ease;
}

.tool-search:focus {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.034);
}

.tool-search::placeholder {
  color: var(--faint);
}

.core-stack {
  display: grid;
  border-top: 1px solid var(--line);
}

.core-tool {
  min-height: auto;
  padding: 20px 0;
  display: grid;
  grid-template-columns: minmax(176px, 0.42fr) minmax(0, 1fr);
  gap: 28px;
  align-items: baseline;
}

.core-tool span {
  color: var(--text);
  font-size: 18px;
  font-weight: 720;
  letter-spacing: -0.025em;
}

.core-tool p {
  color: var(--muted);
  font-size: 13px;
}

.tool-layers {
  display: grid;
  gap: 56px;
}

.tool-layer {
  display: grid;
  grid-template-columns: minmax(240px, 0.64fr) minmax(0, 1.36fr);
  gap: 56px;
  padding-top: 40px;
  border-top: 1px solid var(--line);
}

.tool-layer-head {
  position: sticky;
  top: 96px;
  align-self: start;
}

.tool-layer-head h3 {
  margin-top: 12px;
  color: var(--text);
  font-size: clamp(26px, 3vw, 40px);
  font-weight: 760;
  letter-spacing: -0.04em;
  line-height: 1.02;
}

.tool-layer-head span {
  color: var(--faint);
  font-size: 11px;
  font-weight: 760;
  letter-spacing: 0.13em;
}

.tool-layer-head p {
  margin-top: 14px;
  font-size: 14px;
}

.tool-records {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.tool-record {
  display: block;
  padding: 24px 0;
}

.tool-record-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
}

.tool-record h3 {
  color: var(--text);
  font-size: 22px;
  font-weight: 720;
  letter-spacing: -0.026em;
}

.tool-record-head span {
  color: var(--faint);
  font-size: 13px;
  font-weight: 700;
  transition: color 180ms ease;
}

.tool-record:hover .tool-record-head span {
  color: var(--accent);
}

.tool-record dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.tool-record dt {
  color: var(--faint);
  font-size: 10px;
  font-weight: 760;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.tool-record dd {
  margin-top: 6px;
  color: var(--text-soft);
  font-size: 13px;
  line-height: 1.68;
}

.custom-tools {
  padding: 24px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.012);
}

.custom-form {
  display: grid;
  gap: 12px;
}

.custom-form input {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.018);
  color: var(--text);
  outline: none;
  padding: 10px 12px;
}

.custom-form input:focus {
  border-color: var(--line-strong);
}

.custom-form input::placeholder {
  color: var(--faint);
}

#custom-grid {
  margin-top: 18px;
}

.empty-hint {
  border: 1px dashed var(--line);
  border-radius: var(--radius-sm);
  padding: 18px;
  color: var(--muted);
  font-size: 14px;
}

.custom-tool-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.custom-tool {
  position: relative;
  padding: 18px 0;
}

.custom-tool a {
  color: var(--text);
  font-weight: 700;
}

.custom-tool p {
  margin-top: 6px;
  font-size: 13px;
}

.del-btn {
  position: absolute;
  top: 16px;
  right: 0;
  border: 0;
  background: transparent;
  color: var(--danger);
  cursor: pointer;
  font-size: 12px;
}

.method-list {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.method-list article {
  padding: 24px 22px 26px 0;
  border-right: 1px solid var(--line);
}

.method-list article:last-child {
  border-right: 0;
}

.method-list h3 {
  margin-top: 42px;
  color: var(--text);
  font-size: 21px;
  font-weight: 720;
  letter-spacing: -0.025em;
}

.method-list p {
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.78;
}

.prose-block {
  display: grid;
  gap: 18px;
  border-top: 1px solid var(--line);
  padding-top: 22px;
}

.phase-card {
  padding: 28px 0;
  border-width: 1px 0;
}

.phase-note {
  color: var(--accent);
  font-weight: 700;
}

.plain-list {
  display: grid;
  gap: 12px;
  margin-top: 24px;
  list-style: none;
}

.plain-list li {
  padding-left: 18px;
  border-left: 1px solid var(--line-strong);
  color: var(--text-soft);
}

.apply-panel {
  align-items: center;
}

footer {
  margin-top: 64px;
  border-top: 1px solid var(--line);
  padding: 40px 0 48px;
}

.footer-minimal {
  display: grid;
  grid-template-columns: minmax(220px, 1.4fr) repeat(3, minmax(140px, 0.8fr));
  gap: 24px;
}

.footer-minimal strong {
  color: var(--text);
  font-size: 16px;
}

.footer-minimal span {
  color: var(--faint);
  font-size: 11px;
  font-weight: 760;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer-minimal p {
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
}

.qq-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(3, 5, 4, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.qq-modal {
  position: relative;
  width: min(100%, 368px);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-solid);
  padding: 30px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
}

.qq-modal h3 {
  color: var(--text);
  font-size: 24px;
  font-weight: 760;
  letter-spacing: -0.035em;
  line-height: 1.15;
}

.qq-sub {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
}

.qq-qr,
.qq-qr-missing {
  width: 100%;
  margin-top: 20px;
  border-radius: var(--radius-sm);
}

.qq-qr {
  background: #fff;
  padding: 8px;
}

.qq-qr-missing {
  border: 1px dashed var(--line);
  padding: 28px 16px;
  color: var(--muted);
  font-size: 14px;
}

.qq-num {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 16px;
  color: var(--muted);
  font-size: 14px;
}

.qq-num strong {
  color: var(--text);
  letter-spacing: 0.04em;
}

.qq-copy,
.qq-close {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text-soft);
  cursor: pointer;
}

.qq-copy {
  border-radius: var(--radius-sm);
  padding: 5px 10px;
  font-size: 12px;
}

.qq-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  font-size: 18px;
}

.qq-open-link {
  width: 100%;
  margin-top: 16px;
}

.reveal {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 520ms ease, transform 520ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .hero-layout,
  .project-archive,
  .project-feature,
  .two-column,
  .tool-layer,
  .community-panel,
  .apply-panel,
  .footer-minimal {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 0;
    align-items: start;
    justify-self: end;
    width: min(100%, 360px);
  }

  .hero-visual::before {
    display: none;
  }

  .tool-layer-head {
    position: static;
  }

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

  .method-list article:nth-child(2n) {
    border-right: 0;
  }

  .stack-row,
  .log-row {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .community-panel,
  .apply-panel {
    align-items: start;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(100% - 32px, var(--container));
  }

  .nav-inner {
    min-height: 58px;
  }

  .brand-tagline {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav-links {
    display: none;
    position: absolute;
    inset: 58px 0 auto;
    padding: 10px 16px 16px;
    border-bottom: 1px solid var(--line);
    background: rgba(3, 5, 4, 0.98);
    flex-direction: column;
    align-items: stretch;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: 12px 10px;
  }

  .nav-links a.active::after {
    display: none;
  }

  .hero,
  .hero-home,
  .page-hero {
    padding: 68px 0 42px;
  }

  .hero-layout {
    gap: 28px;
  }

  .hero h1,
  .page-hero h1 {
    font-size: clamp(40px, 11vw, 48px);
    line-height: 0.98;
    letter-spacing: -0.058em;
  }

  .hero-desc {
    margin-top: 24px;
    font-size: 15.5px;
    line-height: 1.82;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    margin-top: 30px;
  }

  .hero-visual {
    width: min(100%, 180px);
    justify-self: start;
    opacity: 0.72;
  }

  .section {
    padding: 70px 0;
  }

  .section-heading {
    margin-bottom: 28px;
  }

  .section-heading h2,
  .community-panel h2,
  .apply-panel h2 {
    font-size: clamp(32px, 10vw, 46px);
    letter-spacing: -0.05em;
  }

  .archive-row {
    grid-template-columns: 36px 1fr;
    gap: 8px 14px;
    padding: 22px 0;
  }

  .row-kind,
  .row-desc,
  .row-status {
    grid-column: 2;
    text-align: left;
  }

  .project-feature,
  .compact-card,
  .community-panel,
  .apply-panel,
  .phase-card {
    padding: 24px 0;
  }

  .custom-tools {
    padding: 18px;
  }

  .project-media {
    min-height: 168px;
  }

  .project-meta,
  .tool-record dl {
    grid-template-columns: 1fr;
  }

  .index-row {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 18px 0;
  }

  .index-row.head {
    display: none;
  }

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

  .method-list article,
  .method-list article:nth-child(2n) {
    border-right: 0;
  }

  .method-list h3 {
    margin-top: 26px;
  }

  .core-tool {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .tool-layer {
    gap: 26px;
    padding-top: 34px;
  }

  .tool-record-head {
    align-items: flex-start;
  }

  .contact-index a,
  .contact-button {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .footer-minimal {
    gap: 18px;
  }
}

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

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

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