@charset "UTF-8";

:root {
  --ink: #061512;
  --ink-soft: #0c2420;
  --paper: #f2f4ed;
  --paper-bright: #fbfcf6;
  --line: rgba(6, 21, 18, 0.16);
  --line-light: rgba(255, 255, 255, 0.15);
  --acid: #c9ff67;
  --cyan: #63e6ff;
  --white: #f9fff5;
  --muted: #6e7d75;
  --shell: min(1440px, calc(100vw - 96px));
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--paper);
  font-family:
    Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
}

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

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

button {
  font: inherit;
}

img,
svg {
  display: block;
}

::selection {
  color: var(--ink);
  background: var(--acid);
}

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

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  padding: 12px 18px;
  color: var(--ink);
  background: var(--acid);
  transform: translateY(-140%);
  transition: transform 180ms ease;
}

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

.site-header {
  position: fixed;
  z-index: 100;
  top: 20px;
  left: 50%;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  width: min(1480px, calc(100vw - 48px));
  height: 68px;
  padding: 0 24px;
  color: var(--white);
  border: 1px solid transparent;
  border-radius: 18px;
  transform: translateX(-50%);
  transition:
    top 300ms var(--ease-out),
    width 300ms var(--ease-out),
    background 300ms ease,
    border-color 300ms ease,
    box-shadow 300ms ease;
}

.site-header.is-scrolled {
  top: 10px;
  width: min(1180px, calc(100vw - 32px));
  border-color: rgba(255, 255, 255, 0.12);
  background: rgba(6, 21, 18, 0.82);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.17);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  gap: 10px;
  width: max-content;
}

.brand-mark {
  width: 32px;
  height: 32px;
  overflow: visible;
}

.brand-mark path {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.brand-mark circle {
  fill: var(--acid);
  stroke: var(--ink);
  stroke-width: 1;
}

.brand-word {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 36px;
  font-size: 13px;
}

.desktop-nav a {
  position: relative;
  color: rgba(249, 255, 245, 0.68);
  transition: color 180ms ease;
}

.desktop-nav a::after {
  position: absolute;
  right: 0;
  bottom: -7px;
  left: 0;
  height: 1px;
  background: var(--acid);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 240ms var(--ease-out);
}

.desktop-nav a:hover {
  color: var(--white);
}

.desktop-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 11px 16px;
  color: var(--ink);
  background: var(--acid);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 750;
  transition:
    transform 200ms var(--ease-out),
    box-shadow 200ms ease;
}

.header-link:hover {
  box-shadow: 0 8px 28px rgba(201, 255, 103, 0.25);
  transform: translateY(-2px);
}

.header-actions {
  display: flex;
  align-items: center;
  justify-self: end;
  gap: 10px;
}

.language-switch {
  display: inline-flex;
  padding: 3px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
}

.language-switch button {
  appearance: none;
  min-width: 30px;
  height: 28px;
  padding: 0 8px;
  color: rgba(249, 255, 245, 0.48);
  background: transparent;
  border: 0;
  border-radius: 999px;
  font-size: 10px;
  cursor: pointer;
}

.language-switch button[aria-pressed="true"] {
  color: var(--ink);
  background: var(--white);
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  color: white;
  background: transparent;
  border: 0;
  border-radius: 50%;
}

.menu-button span {
  display: block;
  width: 22px;
  height: 1px;
  margin: 6px auto;
  background: currentColor;
  transition: transform 240ms ease;
}

.menu-button[aria-expanded="true"] span:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.menu-button[aria-expanded="true"] span:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

.mobile-nav {
  position: fixed;
  z-index: 90;
  inset: 0;
  display: none;
  visibility: hidden;
  align-items: center;
  padding: 100px 32px 32px;
  color: var(--white);
  background: rgba(6, 21, 18, 0.98);
  opacity: 0;
  transition:
    opacity 240ms ease,
    visibility 240ms ease;
}

.mobile-nav.is-open {
  visibility: visible;
  opacity: 1;
}

.mobile-nav nav {
  display: flex;
  flex-direction: column;
  gap: 18px;
  width: 100%;
}

.mobile-nav a {
  padding: 12px 0;
  border-bottom: 1px solid var(--line-light);
  font-size: clamp(28px, 8vw, 46px);
  font-weight: 650;
  letter-spacing: -0.04em;
}

.mobile-nav .mobile-language-switch {
  display: flex;
  align-self: flex-start;
  margin-top: 12px;
}

.mobile-nav .mobile-language-switch button {
  min-width: 74px;
}

.hero {
  position: relative;
  min-height: 940px;
  overflow: hidden;
  color: var(--white);
  background:
    radial-gradient(circle at 75% 44%, rgba(28, 105, 86, 0.24), transparent 28%),
    linear-gradient(145deg, #061512 0%, #081b18 62%, #0a2821 100%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(99, 230, 255, 0.11) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99, 230, 255, 0.11) 1px, transparent 1px);
  background-position: center;
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(to right, black, transparent 78%);
  mask-image: linear-gradient(to right, black, transparent 78%);
}

.hero-grid::after {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(99, 230, 255, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99, 230, 255, 0.16) 1px, transparent 1px);
  background-size: 360px 360px;
  content: "";
}

.hero-glow {
  position: absolute;
  top: 10%;
  right: -12%;
  width: 58vw;
  aspect-ratio: 1;
  border: 1px solid rgba(201, 255, 103, 0.1);
  border-radius: 50%;
  box-shadow:
    0 0 160px rgba(99, 230, 255, 0.08),
    inset 0 0 120px rgba(201, 255, 103, 0.04);
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(460px, 0.95fr);
  align-items: center;
  gap: clamp(40px, 5vw, 100px);
  width: var(--shell);
  min-height: 850px;
  margin: 0 auto;
  padding: 150px 0 90px;
}

.eyebrow {
  margin: 0 0 28px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--acid);
}

.live-dot {
  width: 8px;
  height: 8px;
  background: var(--acid);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(201, 255, 103, 0.55);
  animation: live-pulse 2.2s infinite;
}

@keyframes live-pulse {
  70% {
    box-shadow: 0 0 0 9px rgba(201, 255, 103, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(201, 255, 103, 0);
  }
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(62px, 6.5vw, 104px);
  font-weight: 630;
  letter-spacing: -0.085em;
  line-height: 0.93;
}

.hero h1 span {
  color: transparent;
  background: linear-gradient(92deg, var(--cyan), var(--acid) 84%);
  -webkit-background-clip: text;
  background-clip: text;
}

.hero-intro {
  max-width: 600px;
  margin: 40px 0 0;
  color: rgba(249, 255, 245, 0.68);
  font-size: 16px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-top: 44px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  min-height: 56px;
  padding: 0 22px;
  border: 1px solid transparent;
  font-size: 13px;
  font-weight: 720;
  transition:
    gap 250ms var(--ease-out),
    transform 250ms var(--ease-out),
    color 200ms ease,
    background 200ms ease,
    border-color 200ms ease;
}

.button:hover {
  gap: 40px;
  transform: translateY(-2px);
}

.button-primary {
  color: var(--ink);
  background: var(--acid);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--white);
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  font-size: 13px;
  line-height: 2;
  transition:
    color 180ms ease,
    border-color 180ms ease;
}

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

.energy-scope {
  position: relative;
  width: min(100%, 640px);
  justify-self: end;
  overflow: hidden;
  border: 1px solid rgba(99, 230, 255, 0.2);
  background:
    linear-gradient(rgba(99, 230, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99, 230, 255, 0.035) 1px, transparent 1px),
    rgba(4, 21, 19, 0.54);
  background-size: 24px 24px;
  -webkit-backdrop-filter: blur(5px);
  backdrop-filter: blur(5px);
  clip-path: none;
}

.energy-scope::before,
.energy-scope::after {
  position: absolute;
  z-index: 2;
  width: 88px;
  height: 2px;
  background: var(--acid);
  content: "";
}

.energy-scope::before {
  top: 0;
  left: 0;
}

.energy-scope::after {
  right: 0;
  bottom: 0;
}

.scope-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 21px 24px 0;
  color: rgba(249, 255, 245, 0.45);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
  letter-spacing: 0.12em;
}

.scope-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--acid);
}

.scope-status i {
  width: 5px;
  height: 5px;
  background: currentColor;
  border-radius: 50%;
}

.scope-graphic {
  width: 100%;
  height: auto;
}

.reactor-stage {
  --shift-x: 0px;
  --shift-y: 0px;
  --shift-x-reverse: 0px;
  --shift-y-reverse: 0px;
  position: relative;
  height: 500px;
  margin: 8px 12px 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 48%, rgba(201, 255, 103, 0.11), transparent 17%),
    radial-gradient(circle at 50% 48%, rgba(99, 230, 255, 0.08), transparent 40%),
    linear-gradient(180deg, rgba(2, 15, 14, 0.12), rgba(2, 15, 14, 0.72));
  perspective: 900px;
  isolation: isolate;
  transition: background 450ms ease;
}

.reactor-stage[data-mode="resilience"] {
  background:
    radial-gradient(circle at 80% 48%, rgba(255, 122, 104, 0.16), transparent 25%),
    radial-gradient(circle at 40% 50%, rgba(99, 230, 255, 0.1), transparent 38%),
    linear-gradient(180deg, rgba(2, 15, 14, 0.12), rgba(2, 15, 14, 0.72));
}

.reactor-stage[data-mode="operation"] {
  background:
    linear-gradient(180deg, transparent 47%, rgba(99, 230, 255, 0.08) 50%, transparent 53%),
    radial-gradient(ellipse at 50% 50%, rgba(201, 255, 103, 0.08), transparent 42%),
    linear-gradient(180deg, rgba(2, 15, 14, 0.12), rgba(2, 15, 14, 0.72));
}

.reactor-stage::before {
  position: absolute;
  z-index: 5;
  inset: 0;
  border: 1px solid rgba(99, 230, 255, 0.08);
  box-shadow:
    inset 0 0 80px rgba(0, 0, 0, 0.46),
    inset 0 0 24px rgba(99, 230, 255, 0.05);
  content: "";
  pointer-events: none;
}

.reactor-stage::after {
  position: absolute;
  z-index: 5;
  inset: 0;
  opacity: 0.17;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent 3px,
    rgba(99, 230, 255, 0.12) 4px
  );
  content: "";
  mix-blend-mode: screen;
  pointer-events: none;
}

.research-mode-switch {
  position: absolute;
  z-index: 7;
  top: 10px;
  left: 12px;
  display: flex;
  gap: 4px;
}

.research-mode-switch button {
  appearance: none;
  padding: 6px 9px;
  color: rgba(249, 255, 245, 0.42);
  background: rgba(3, 17, 15, 0.6);
  border: 1px solid rgba(99, 230, 255, 0.12);
  font-size: 9px;
  cursor: pointer;
  transition:
    color 180ms ease,
    background 180ms ease,
    border-color 180ms ease;
}

.research-mode-switch button:hover,
.research-mode-switch button[aria-selected="true"] {
  color: var(--ink);
  background: var(--acid);
  border-color: var(--acid);
}

.flow-equation {
  position: absolute;
  z-index: 6;
  top: 53px;
  left: 50%;
  display: flex;
  align-items: center;
  gap: 10px;
  width: max-content;
  color: rgba(249, 255, 245, 0.48);
  font-size: 10px;
  transform: translateX(-50%);
}

.flow-equation strong {
  color: var(--acid);
  font-weight: 620;
}

.flow-equation i {
  color: rgba(99, 230, 255, 0.44);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
  font-style: normal;
}

.flow-map {
  position: absolute;
  z-index: 1;
  inset: 66px 0 0;
  width: 100%;
  height: calc(100% - 66px);
  overflow: visible;
}

.flow-path {
  fill: none;
  stroke: rgba(99, 230, 255, 0.13);
  stroke-dasharray: 7 9;
  stroke-linecap: round;
  stroke-width: 1.2;
  vector-effect: non-scaling-stroke;
  transition:
    opacity 250ms ease,
    stroke 250ms ease,
    stroke-width 250ms ease;
}

.path-risk,
.path-backup,
.path-return {
  opacity: 0.04;
}

.flow-particles {
  fill: var(--cyan);
  opacity: 0;
  transition: opacity 250ms ease;
}

.flow-particles .particle-acid {
  fill: var(--acid);
}

.flow-particles .particle-risk {
  fill: #ff7a68;
}

.reactor-stage[data-mode="aggregation"] .path-resource,
.reactor-stage[data-mode="aggregation"] .path-output {
  stroke: rgba(99, 230, 255, 0.5);
  stroke-width: 1.5;
}

.reactor-stage[data-mode="aggregation"] .path-output {
  stroke: rgba(201, 255, 103, 0.48);
}

.reactor-stage[data-mode="aggregation"] .particles-aggregation,
.reactor-stage[data-mode="resilience"] .particles-resilience,
.reactor-stage[data-mode="operation"] .particles-operation {
  opacity: 1;
}

.reactor-stage[data-mode="resilience"] .path-resource,
.reactor-stage[data-mode="resilience"] .path-output {
  stroke: rgba(99, 230, 255, 0.2);
}

.reactor-stage[data-mode="resilience"] .path-risk {
  opacity: 1;
  stroke: rgba(255, 122, 104, 0.72);
  stroke-width: 1.7;
}

.reactor-stage[data-mode="resilience"] .path-backup {
  opacity: 1;
  stroke: rgba(201, 255, 103, 0.68);
  stroke-width: 1.8;
}

.reactor-stage[data-mode="operation"] .path-resource {
  stroke: rgba(99, 230, 255, 0.22);
}

.reactor-stage[data-mode="operation"] .path-output,
.reactor-stage[data-mode="operation"] .path-return {
  opacity: 1;
  stroke: rgba(201, 255, 103, 0.62);
  stroke-width: 1.7;
}

.system-node {
  appearance: none;
  position: absolute;
  z-index: 5;
  display: flex;
  align-items: center;
  flex-direction: column;
  gap: 4px;
  min-width: 62px;
  padding: 0;
  color: rgba(249, 255, 245, 0.5);
  background: transparent;
  border: 0;
  cursor: pointer;
  transition:
    color 200ms ease,
    filter 200ms ease,
    transform 250ms var(--ease-out);
}

.system-node span {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  color: var(--cyan);
  background: rgba(3, 17, 15, 0.82);
  border: 1px solid rgba(99, 230, 255, 0.36);
  border-radius: 50%;
  box-shadow:
    0 0 12px rgba(99, 230, 255, 0.08),
    inset 0 0 12px rgba(99, 230, 255, 0.04);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 8px;
}

.system-node small {
  font-size: 8px;
  white-space: nowrap;
}

.system-node:hover,
.system-node.is-active {
  color: var(--white);
  filter: drop-shadow(0 0 8px rgba(99, 230, 255, 0.35));
  transform: translateY(-2px);
}

.system-node:hover span,
.system-node.is-active span {
  color: var(--acid);
  border-color: rgba(201, 255, 103, 0.64);
}

.node-pv {
  top: 29%;
  left: 6%;
}

.node-load {
  top: 48%;
  left: 5%;
}

.node-storage {
  bottom: 11%;
  left: 13%;
}

.node-ev {
  bottom: 4%;
  left: 42%;
}

.node-climate {
  top: 24%;
  right: 10%;
  opacity: 0.48;
}

.node-grid {
  top: 45%;
  right: 4%;
}

.node-service {
  right: 5%;
  bottom: 10%;
}

.reactor-stage[data-mode="resilience"] .node-climate,
.reactor-stage[data-mode="resilience"] .node-storage,
.reactor-stage[data-mode="resilience"] .node-load,
.reactor-stage[data-mode="operation"] .node-grid,
.reactor-stage[data-mode="operation"] .node-service,
.reactor-stage[data-mode="operation"] .node-ev {
  color: var(--white);
  opacity: 1;
  filter: drop-shadow(0 0 8px rgba(201, 255, 103, 0.2));
}

.reactor-stage[data-mode="aggregation"] .node-pv,
.reactor-stage[data-mode="aggregation"] .node-load,
.reactor-stage[data-mode="aggregation"] .node-storage,
.reactor-stage[data-mode="aggregation"] .node-ev {
  color: var(--white);
  filter: drop-shadow(0 0 7px rgba(99, 230, 255, 0.18));
}

.aggregation-hub {
  appearance: none;
  position: absolute;
  z-index: 6;
  top: 55%;
  left: 50%;
  display: grid;
  place-content: center;
  width: 120px;
  aspect-ratio: 1;
  padding: 0;
  color: var(--white);
  text-align: center;
  background: rgba(3, 19, 16, 0.86);
  border: 1px solid rgba(201, 255, 103, 0.62);
  border-radius: 50%;
  box-shadow:
    0 0 30px rgba(201, 255, 103, 0.16),
    inset 0 0 25px rgba(99, 230, 255, 0.08);
  cursor: pointer;
  transform: translate(-50%, -50%);
}

.aggregation-hub::before,
.aggregation-hub::after,
.aggregation-hub i {
  position: absolute;
  border-radius: 50%;
  content: "";
}

.aggregation-hub::before {
  inset: -12px;
  border: 1px dashed rgba(99, 230, 255, 0.34);
  animation: hub-spin 12s linear infinite;
}

.aggregation-hub::after {
  inset: -23px;
  border: 1px solid rgba(201, 255, 103, 0.12);
  animation: hub-pulse 3s ease-in-out infinite;
}

.aggregation-hub i {
  top: -17px;
  left: 50%;
  width: 8px;
  height: 8px;
  background: var(--acid);
  box-shadow: 0 0 10px var(--acid);
  transform: translateX(-50%);
}

.aggregation-hub strong,
.aggregation-hub small {
  display: block;
}

.aggregation-hub strong {
  margin-bottom: 4px;
  font-size: 17px;
  font-weight: 620;
}

.aggregation-hub small {
  color: rgba(249, 255, 245, 0.42);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 6px;
  letter-spacing: 0.12em;
}

.aggregation-hub:hover,
.aggregation-hub.is-active {
  border-color: var(--acid);
  box-shadow:
    0 0 44px rgba(201, 255, 103, 0.28),
    inset 0 0 28px rgba(99, 230, 255, 0.1);
}

.reactor-stage[data-mode="resilience"] .aggregation-hub {
  border-color: rgba(99, 230, 255, 0.72);
  box-shadow:
    0 0 36px rgba(99, 230, 255, 0.2),
    inset 0 0 25px rgba(99, 230, 255, 0.1);
}

.reactor-stage[data-mode="operation"] .aggregation-hub {
  border-style: dashed;
}

@keyframes hub-spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes hub-pulse {
  50% {
    opacity: 0.36;
    transform: scale(1.08);
  }
}

.reactor-canvas {
  position: absolute;
  z-index: 1;
  inset: 0;
  width: 100%;
  height: 100%;
  filter: saturate(1.15) contrast(1.08);
  transform: translate(var(--shift-x), var(--shift-y)) scale(1.04);
  transition: transform 700ms var(--ease-out);
}

.field-contours {
  position: absolute;
  z-index: 2;
  top: 53%;
  left: 50%;
  width: 68%;
  aspect-ratio: 1;
  pointer-events: none;
  transform: translate(-50%, -50%);
  transform-style: preserve-3d;
}

.field-contours i {
  position: absolute;
  inset: 12%;
  border: 1px solid rgba(99, 230, 255, 0.18);
  border-radius: 50%;
  box-shadow: 0 0 20px rgba(99, 230, 255, 0.04);
}

.field-contours i:nth-child(1) {
  transform: rotateX(68deg) rotateZ(12deg);
  animation: field-drift-a 12s linear infinite;
}

.field-contours i:nth-child(2) {
  inset: 21%;
  border-color: rgba(201, 255, 103, 0.24);
  border-style: dashed;
  transform: rotateY(66deg) rotateZ(-16deg);
  animation: field-drift-b 10s linear infinite reverse;
}

.field-contours i:nth-child(3) {
  inset: 29%;
  border-color: rgba(249, 255, 245, 0.12);
  transform: rotateX(52deg) rotateY(42deg);
  animation: field-pulse 4s ease-in-out infinite;
}

@keyframes field-drift-a {
  to {
    transform: rotateX(68deg) rotateZ(372deg);
  }
}

@keyframes field-drift-b {
  to {
    transform: rotateY(66deg) rotateZ(344deg);
  }
}

@keyframes field-pulse {
  50% {
    opacity: 0.42;
    transform: rotateX(52deg) rotateY(42deg) scale(0.82);
  }
}

.field-center {
  appearance: none;
  position: absolute;
  z-index: 5;
  top: 53%;
  left: 50%;
  display: flex;
  align-items: center;
  flex-direction: column;
  gap: 5px;
  min-width: 140px;
  padding: 18px 12px;
  color: var(--white);
  background: transparent;
  border: 0;
  cursor: pointer;
  transform: translate(-50%, -50%);
}

.field-center::before {
  width: 9px;
  height: 9px;
  margin-bottom: 3px;
  background: var(--acid);
  border-radius: 50%;
  box-shadow:
    0 0 8px var(--acid),
    0 0 28px rgba(201, 255, 103, 0.65);
  content: "";
}

.field-center strong {
  font-size: 18px;
  font-weight: 620;
  text-shadow: 0 0 14px rgba(201, 255, 103, 0.2);
}

.field-center small {
  color: rgba(249, 255, 245, 0.38);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 6px;
  letter-spacing: 0.13em;
}

.field-center:hover strong,
.field-center.is-active strong {
  color: var(--acid);
}

.field-label {
  position: absolute;
  z-index: 4;
  color: rgba(249, 255, 245, 0.26);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 6px;
  letter-spacing: 0.14em;
  pointer-events: none;
}

.field-label-source {
  top: 52%;
  left: 7%;
}

.field-label-state {
  top: 21%;
  left: 50%;
  transform: translateX(-50%);
}

.field-label-output {
  top: 52%;
  right: 7%;
}

.operation-objectives {
  position: absolute;
  z-index: 4;
  inset: 0;
  display: none;
  pointer-events: none;
}

.reactor-stage[data-mode="operation"] .operation-objectives {
  display: block;
}

.reactor-stage[data-mode="operation"] .field-label-source,
.reactor-stage[data-mode="operation"] .field-label-output {
  opacity: 0;
}

.operation-objectives span {
  position: absolute;
  display: flex;
  align-items: center;
  flex-direction: column;
  gap: 3px;
  color: rgba(249, 255, 245, 0.58);
}

.operation-objectives b {
  font-size: 10px;
  font-weight: 620;
}

.operation-objectives small {
  color: rgba(99, 230, 255, 0.42);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 5px;
  letter-spacing: 0.11em;
}

.objective-security {
  top: 24%;
  left: 50%;
  transform: translateX(-50%);
}

.objective-economy {
  top: 64%;
  bottom: auto;
  left: 26%;
}

.objective-carbon {
  right: 26%;
  top: 64%;
  bottom: auto;
}

.reactor-stage[data-mode="aggregation"] .field-label-state {
  color: rgba(201, 255, 103, 0.58);
}

.reactor-stage[data-mode="resilience"] .field-label-state {
  color: rgba(255, 122, 104, 0.7);
}

.reactor-stage[data-mode="operation"] .field-label-state {
  color: rgba(99, 230, 255, 0.68);
}

.reactor-stage[data-mode="resilience"] .field-contours i:nth-child(1) {
  border-color: rgba(255, 122, 104, 0.32);
  animation: field-shock 2.8s ease-in-out infinite;
}

.reactor-stage[data-mode="resilience"] .field-contours i:nth-child(2) {
  border-color: rgba(201, 255, 103, 0.34);
  animation: field-recover 2.8s 0.35s ease-in-out infinite;
}

.reactor-stage[data-mode="operation"] .field-contours i:nth-child(1) {
  border-color: rgba(201, 255, 103, 0.24);
  animation: field-sync-a 8s linear infinite;
}

.reactor-stage[data-mode="operation"] .field-contours {
  opacity: 0.22;
}

.reactor-stage[data-mode="operation"] .field-contours i:nth-child(2) {
  border-color: rgba(99, 230, 255, 0.28);
  animation: field-sync-b 6s linear infinite reverse;
}

.reactor-stage[data-mode="operation"] .field-contours i:nth-child(3) {
  animation: field-pulse 2.4s ease-in-out infinite;
}

@keyframes field-shock {
  0%,
  100% {
    transform: rotateX(58deg) rotateZ(18deg) skewX(0) scale(1);
  }
  38% {
    transform: rotateX(48deg) rotateZ(34deg) skewX(16deg) scale(1.16, 0.82);
  }
}

@keyframes field-recover {
  0%,
  30% {
    opacity: 0.25;
    transform: rotateY(66deg) rotateZ(-16deg) scale(0.72);
  }
  100% {
    opacity: 1;
    transform: rotateY(66deg) rotateZ(344deg) scale(1);
  }
}

@keyframes field-sync-a {
  from {
    transform: rotateX(74deg) rotateZ(0deg);
  }
  to {
    transform: rotateX(74deg) rotateZ(360deg);
  }
}

@keyframes field-sync-b {
  from {
    transform: rotateX(74deg) rotateZ(18deg);
  }
  to {
    transform: rotateX(74deg) rotateZ(378deg);
  }
}

.reactor-grid {
  position: absolute;
  z-index: 0;
  right: -25%;
  bottom: -45%;
  left: -25%;
  height: 72%;
  opacity: 0.38;
  background-image:
    linear-gradient(rgba(99, 230, 255, 0.24) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99, 230, 255, 0.24) 1px, transparent 1px);
  background-size: 34px 34px;
  transform: rotateX(66deg) rotateZ(-8deg);
  transform-origin: center top;
  -webkit-mask-image: linear-gradient(to bottom, transparent, black 30%, transparent 92%);
  mask-image: linear-gradient(to bottom, transparent, black 30%, transparent 92%);
}

.reactor-scan {
  position: absolute;
  z-index: 4;
  top: -30%;
  left: 0;
  width: 100%;
  height: 26%;
  opacity: 0.5;
  background: linear-gradient(to bottom, transparent, rgba(201, 255, 103, 0.14), transparent);
  border-bottom: 1px solid rgba(201, 255, 103, 0.56);
  filter: drop-shadow(0 0 8px rgba(201, 255, 103, 0.42));
  animation: reactor-scan 5.5s linear infinite;
  pointer-events: none;
}

@keyframes reactor-scan {
  to {
    transform: translateY(650%);
  }
}

.reactor-orbit {
  position: absolute;
  z-index: 2;
  top: 48%;
  left: 50%;
  width: 58%;
  aspect-ratio: 1;
  border: 1px solid rgba(99, 230, 255, 0.32);
  border-radius: 50%;
  box-shadow:
    0 0 24px rgba(99, 230, 255, 0.06),
    inset 0 0 24px rgba(99, 230, 255, 0.04);
  transform-style: preserve-3d;
  pointer-events: none;
}

.reactor-orbit::before {
  position: absolute;
  inset: 11%;
  border: 1px dashed rgba(201, 255, 103, 0.22);
  border-radius: inherit;
  content: "";
}

.reactor-orbit i {
  position: absolute;
  top: 47%;
  left: -4px;
  width: 8px;
  height: 8px;
  background: var(--acid);
  border: 2px solid rgba(6, 21, 18, 0.9);
  border-radius: 50%;
  box-shadow:
    0 0 6px var(--acid),
    0 0 18px rgba(201, 255, 103, 0.8);
}

.reactor-orbit-a {
  animation: orbit-a 12s linear infinite;
}

.reactor-orbit-b {
  width: 48%;
  border-color: rgba(201, 255, 103, 0.28);
  animation: orbit-b 9s linear infinite reverse;
}

.reactor-orbit-c {
  width: 72%;
  border-style: dashed;
  border-color: rgba(99, 230, 255, 0.17);
  animation: orbit-c 19s linear infinite;
}

@keyframes orbit-a {
  from {
    transform: translate(-50%, -50%) rotateX(68deg) rotateZ(0deg);
  }
  to {
    transform: translate(-50%, -50%) rotateX(68deg) rotateZ(360deg);
  }
}

@keyframes orbit-b {
  from {
    transform: translate(-50%, -50%) rotateY(68deg) rotateZ(15deg);
  }
  to {
    transform: translate(-50%, -50%) rotateY(68deg) rotateZ(375deg);
  }
}

@keyframes orbit-c {
  from {
    transform: translate(-50%, -50%) rotateX(48deg) rotateY(58deg) rotateZ(0deg);
  }
  to {
    transform: translate(-50%, -50%) rotateX(48deg) rotateY(58deg) rotateZ(360deg);
  }
}

.reactor-core {
  appearance: none;
  position: absolute;
  z-index: 3;
  top: 48%;
  left: 50%;
  display: grid;
  place-content: center;
  justify-items: center;
  width: 116px;
  aspect-ratio: 1;
  padding: 0;
  color: var(--white);
  text-align: center;
  background: radial-gradient(circle, rgba(201, 255, 103, 0.12), transparent 62%);
  border: 0;
  filter: drop-shadow(0 0 20px rgba(201, 255, 103, 0.22));
  cursor: pointer;
  transform: translate(calc(-50% + var(--shift-x)), calc(-50% + var(--shift-y)));
  transition:
    filter 250ms ease,
    transform 700ms var(--ease-out);
}

.reactor-core::before,
.reactor-core::after {
  position: absolute;
  z-index: -1;
  border: 1px solid rgba(201, 255, 103, 0.56);
  content: "";
}

.reactor-core::before {
  inset: 15px;
  background: rgba(3, 18, 16, 0.78);
  box-shadow:
    0 0 14px rgba(201, 255, 103, 0.18),
    inset 0 0 18px rgba(99, 230, 255, 0.06);
  transform: rotate(45deg);
}

.reactor-core::after {
  inset: 2px;
  border-color: rgba(99, 230, 255, 0.18);
  transform: rotate(45deg);
  animation: core-ring 3.4s ease-in-out infinite;
}

@keyframes core-ring {
  0% {
    opacity: 0.38;
    transform: rotate(45deg) scale(0.82);
  }
  50% {
    opacity: 0.78;
  }
  100% {
    opacity: 0.38;
    transform: rotate(45deg) scale(1.08);
  }
}

.reactor-core small {
  color: rgba(249, 255, 245, 0.58);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 6px;
  letter-spacing: 0.1em;
}

.reactor-core strong {
  margin: 3px 0 2px;
  color: var(--white);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 10px;
  font-weight: 620;
  letter-spacing: 0.08em;
  text-shadow: 0 0 12px rgba(255, 255, 255, 0.45);
}

.human-mark {
  width: 34px;
  height: 34px;
  overflow: visible;
}

.human-mark circle {
  fill: var(--acid);
  filter: drop-shadow(0 0 5px rgba(201, 255, 103, 0.7));
}

.human-mark path {
  fill: none;
  stroke: var(--white);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.4;
}

.reactor-core:hover,
.reactor-core.is-active {
  filter: drop-shadow(0 0 28px rgba(201, 255, 103, 0.42));
}

.reactor-label {
  appearance: none;
  position: absolute;
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 7px;
  color: rgba(249, 255, 245, 0.48);
  padding: 4px;
  background: transparent;
  border: 0;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 7px;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition:
    color 200ms ease,
    transform 500ms var(--ease-out);
}

.reactor-label i {
  width: 6px;
  height: 6px;
  border: 1px solid var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 7px rgba(99, 230, 255, 0.7);
}

.reactor-label:hover,
.reactor-label.is-active {
  color: var(--acid);
}

.label-building {
  top: 19%;
  left: 14%;
  transform: translate(var(--shift-x-reverse), var(--shift-y-reverse));
}

.label-climate {
  top: 22%;
  right: 13%;
  transform: translate(var(--shift-x), var(--shift-y-reverse));
}

.label-mobility {
  right: 14%;
  bottom: 18%;
  transform: translate(var(--shift-x), var(--shift-y));
}

.label-grid {
  bottom: 20%;
  left: 12%;
  transform: translate(var(--shift-x-reverse), var(--shift-y));
}

.label-data {
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
}

.reactor-axis {
  appearance: none;
  position: absolute;
  z-index: 4;
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 4px 7px;
  color: var(--white);
  background: rgba(3, 17, 15, 0.7);
  border: 0;
  border-left: 1px solid var(--acid);
  box-shadow: 0 0 18px rgba(201, 255, 103, 0.08);
  font-size: 10px;
  font-weight: 620;
  -webkit-backdrop-filter: blur(5px);
  backdrop-filter: blur(5px);
  cursor: pointer;
  transition:
    color 200ms ease,
    border-color 200ms ease,
    background 200ms ease;
}

.reactor-axis small {
  color: rgba(249, 255, 245, 0.38);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 5px;
  font-weight: 400;
  letter-spacing: 0.1em;
}

.reactor-axis:hover,
.reactor-axis.is-active {
  color: var(--acid);
  background: rgba(3, 17, 15, 0.92);
  border-left-color: var(--acid);
}

.axis-aggregate {
  top: 32%;
  right: 18%;
}

.axis-resilience {
  top: 57%;
  left: 11%;
  border-left-color: var(--cyan);
}

.axis-operation {
  right: 18%;
  bottom: 27%;
  border-left-color: var(--cyan);
}

.reactor-hint {
  position: absolute;
  z-index: 4;
  bottom: 8px;
  left: 12px;
  margin: 0;
  color: rgba(249, 255, 245, 0.3);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 6px;
  letter-spacing: 0.12em;
  transition: opacity 200ms ease;
}

.reactor-stage.has-detail .reactor-hint {
  opacity: 0;
}

.reactor-detail {
  position: relative;
  z-index: 3;
  width: auto;
  max-height: 0;
  min-height: 0;
  margin: 0 24px;
  padding: 0 42px 0 0;
  overflow: hidden;
  color: var(--white);
  background: transparent;
  border-top: 1px solid transparent;
  opacity: 0;
  pointer-events: none;
  transition:
    max-height 350ms var(--ease-out),
    opacity 220ms ease,
    padding 350ms var(--ease-out),
    border-color 220ms ease;
}

.reactor-detail.is-visible {
  max-height: 110px;
  padding: 14px 42px 13px 0;
  border-color: rgba(99, 230, 255, 0.22);
  opacity: 1;
  pointer-events: auto;
}

.reactor-detail > span {
  display: block;
  margin-bottom: 8px;
  color: var(--cyan);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 7px;
  letter-spacing: 0.12em;
}

.reactor-detail > strong {
  display: block;
  margin-bottom: 7px;
  font-size: 17px;
  font-weight: 620;
}

.reactor-detail > p {
  margin: 0;
  color: rgba(249, 255, 245, 0.58);
  font-size: 11px;
  line-height: 1.65;
}

.reactor-detail-close {
  appearance: none;
  position: absolute;
  top: 13px;
  right: 0;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  padding: 0;
  color: rgba(249, 255, 245, 0.56);
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.14);
  cursor: pointer;
}

.reactor-detail-close:hover {
  color: var(--acid);
  border-color: rgba(201, 255, 103, 0.45);
}

.depth-scale {
  position: absolute;
  z-index: 4;
  top: 50%;
  right: 14px;
  display: flex;
  flex-direction: column;
  gap: 30px;
  color: rgba(99, 230, 255, 0.26);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 6px;
  transform: translateY(-50%);
}

.depth-scale::before {
  position: absolute;
  top: 3px;
  bottom: 3px;
  left: -8px;
  width: 1px;
  background: linear-gradient(transparent, rgba(99, 230, 255, 0.35), transparent);
  content: "";
}

.scope-rings circle,
.scope-axis path {
  fill: none;
  stroke: rgba(99, 230, 255, 0.12);
  stroke-width: 1;
}

.scope-rings circle:nth-child(2) {
  stroke-dasharray: 3 8;
}

.scope-rings circle:nth-child(3) {
  stroke: rgba(201, 255, 103, 0.15);
  stroke-dasharray: 14 8;
}

.scope-axis path {
  stroke-dasharray: 2 10;
}

.energy-paths path {
  fill: none;
  stroke: url("#flowGradient");
  stroke-dasharray: 8 13;
  stroke-linecap: round;
  stroke-width: 1.6;
  animation: energy-flow 10s linear infinite;
}

.energy-paths path:nth-child(2) {
  animation-direction: reverse;
  animation-duration: 13s;
}

.energy-paths path:nth-child(3) {
  animation-duration: 16s;
}

@keyframes energy-flow {
  to {
    stroke-dashoffset: -210;
  }
}

.orbit {
  fill: var(--acid);
  filter: drop-shadow(0 0 5px var(--acid));
  transform-origin: 340px 278px;
}

.orbit-one {
  animation: orbit 11s linear infinite;
}

.orbit-two {
  animation: orbit 8s linear reverse infinite;
}

@keyframes orbit {
  to {
    transform: rotate(360deg);
  }
}

.network-node {
  color: var(--white);
}

.network-node text {
  fill: rgba(249, 255, 245, 0.45);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
  letter-spacing: 0.1em;
  text-anchor: middle;
}

.node-core {
  fill: rgba(6, 21, 18, 0.9);
  stroke: var(--acid);
  stroke-width: 1.5;
}

.node-core.small {
  stroke: var(--cyan);
}

.network-node > path,
.person-head,
.person-body {
  fill: none;
  stroke: var(--white);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.person-head {
  fill: var(--white);
}

.node-pulse {
  fill: none;
  stroke: rgba(99, 230, 255, 0.6);
  transform-origin: center;
  animation: node-pulse 2.8s ease-out infinite;
}

.node-pulse.delay-one {
  animation-delay: -0.7s;
}

.node-pulse.delay-two {
  animation-delay: -1.4s;
}

.node-pulse.delay-three {
  animation-delay: -2.1s;
}

@keyframes node-pulse {
  0% {
    opacity: 0.8;
    transform: scale(0.62);
  }
  100% {
    opacity: 0;
    transform: scale(1.3);
  }
}

.scope-readout {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0 24px 24px;
  border-top: 1px solid rgba(99, 230, 255, 0.13);
}

.scope-readout div {
  padding: 18px 12px 4px 0;
}

.scope-readout div + div {
  padding-left: 16px;
  border-left: 1px solid rgba(99, 230, 255, 0.13);
}

.scope-readout span {
  display: block;
  margin-bottom: 6px;
  color: rgba(249, 255, 245, 0.37);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 8px;
  letter-spacing: 0.09em;
}

.scope-readout strong {
  display: block;
  color: var(--cyan);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
}

.hero-foot {
  position: absolute;
  z-index: 2;
  right: max(48px, calc((100vw - 1440px) / 2));
  bottom: 30px;
  left: max(48px, calc((100vw - 1440px) / 2));
  display: flex;
  justify-content: space-between;
  padding-top: 22px;
  color: rgba(249, 255, 245, 0.38);
  border-top: 1px solid var(--line-light);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
  letter-spacing: 0.13em;
}

.hero-foot p {
  margin: 0;
}

.scroll-note {
  display: flex;
  align-items: center;
  gap: 10px;
}

.scroll-note span {
  position: relative;
  display: block;
  width: 34px;
  height: 1px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.16);
}

.scroll-note span::after {
  position: absolute;
  width: 14px;
  height: 100%;
  background: var(--acid);
  content: "";
  animation: scroll-line 1.8s ease-in-out infinite;
}

@keyframes scroll-line {
  from {
    transform: translateX(-14px);
  }
  to {
    transform: translateX(34px);
  }
}

.section-shell {
  width: var(--shell);
  margin: 0 auto;
}

.section-index {
  margin: 0;
  color: #748079;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 10px;
  letter-spacing: 0.16em;
}

.section-index.light {
  color: rgba(249, 255, 245, 0.42);
}

.manifesto {
  padding: 80px 0 88px;
  background:
    linear-gradient(90deg, transparent calc(50% - 1px), rgba(6, 21, 18, 0.045) 50%, transparent calc(50% + 1px)),
    var(--paper);
}

.manifesto-grid {
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 48px 40px;
}

.manifesto-copy {
  display: grid;
  grid-template-columns: 2.1fr 0.9fr;
  align-items: end;
  gap: 8vw;
}

.manifesto-lead {
  margin: 0;
  font-size: clamp(34px, 3.4vw, 52px);
  font-weight: 560;
  letter-spacing: -0.065em;
  line-height: 1.17;
}

.manifesto-lead strong {
  position: relative;
  z-index: 1;
  font-weight: 620;
}

.manifesto-lead strong::after {
  position: absolute;
  z-index: -1;
  right: -4px;
  bottom: 2px;
  left: -4px;
  height: 0.25em;
  background: var(--acid);
  content: "";
}

.manifesto-detail {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 14px;
  line-height: 2;
}

.discipline-map {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
}

.discipline-map article {
  position: relative;
  min-height: 138px;
  padding: 18px 14px 18px 0;
  transition:
    background 300ms ease,
    padding 300ms var(--ease-out);
}

.discipline-map article::before {
  position: absolute;
  top: -1px;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--cyan);
  content: "";
  transition: width 350ms var(--ease-out);
}

.discipline-map article:nth-child(even)::before {
  background: var(--acid);
}

.discipline-map article:hover {
  background: rgba(99, 230, 255, 0.045);
}

.discipline-map article:hover::before {
  width: 100%;
}

.discipline-map article + article {
  padding-left: 16px;
  border-left: 1px solid var(--line);
}

.discipline-map article > span,
.discipline-map article > p,
.research-loop > p {
  font-family: "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.12em;
}

.discipline-map article > span {
  color: #869188;
  font-size: 8px;
}

.discipline-map article > p {
  margin: 16px 0 6px;
  color: #758179;
  font-size: 8px;
}

.discipline-map h3 {
  margin: 0 0 8px;
  font-size: clamp(20px, 1.55vw, 24px);
  font-weight: 580;
  letter-spacing: -0.045em;
}

.discipline-map small {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.7;
}

.research-flow {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 40px;
  padding-top: 2px;
}

.research-flow > p {
  margin: 6px 0 0;
  color: #758179;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
  letter-spacing: 0.12em;
}

.research-flow ol {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 0;
  padding: 0;
  list-style: none;
}

.research-flow li {
  position: relative;
  padding: 0 24px 0 0;
}

.research-flow li + li {
  padding-left: 24px;
  border-left: 1px solid var(--line);
}

.research-flow li:not(:last-child)::after {
  position: absolute;
  top: 3px;
  right: 12px;
  color: #829087;
  content: "→";
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 10px;
}

.research-flow strong,
.research-flow small {
  display: block;
}

.research-flow strong {
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 620;
}

.research-flow small {
  color: var(--muted);
  font-size: 10px;
  line-height: 1.5;
}

.research-loop {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 40px;
}

.research-loop > p {
  margin: 5px 0 0;
  color: #758179;
  font-size: 9px;
}

.research-loop ol {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.research-loop li {
  position: relative;
  padding: 0 24px 0 0;
}

.research-loop li + li {
  padding-left: 24px;
}

.research-loop li + li::before {
  position: absolute;
  top: 3px;
  bottom: 3px;
  left: 0;
  width: 1px;
  background: var(--line);
  content: "";
}

.research-loop li span {
  display: block;
  margin-bottom: 26px;
  color: #7d8981;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
}

.research-loop li strong,
.research-loop li small {
  display: block;
}

.research-loop li strong {
  margin-bottom: 10px;
  font-size: 15px;
  font-weight: 620;
}

.research-loop li small {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.6;
}

.research {
  padding: 105px 0 115px;
  border-top: 1px solid var(--line);
  background: var(--paper-bright);
}

.section-heading {
  display: grid;
  grid-template-columns: 1.55fr 0.45fr;
  align-items: end;
  gap: 70px;
  margin-bottom: 64px;
}

.section-heading h2,
.impact-heading h2,
.join h2 {
  margin: 24px 0 0;
  font-size: clamp(44px, 4.5vw, 68px);
  font-weight: 570;
  letter-spacing: -0.075em;
  line-height: 0.98;
}

.section-heading > p {
  max-width: 390px;
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}

.research-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
}

.research-item + .research-item {
  border-left: 1px solid var(--line);
}

.research-item {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 350px;
  padding: 24px;
  overflow: hidden;
  border: 0;
  border-bottom: 1px solid var(--line);
  isolation: isolate;
  transition:
    color 350ms ease,
    padding 350ms var(--ease-out);
}

.research-item::before {
  display: none;
}

.research-item:hover {
  padding: 24px;
  color: var(--ink);
}

.research-number {
  margin-bottom: 56px;
  color: #7a867f;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
}

.research-body {
  display: flex;
  flex: 1;
  flex-direction: column;
}

.research-en {
  margin: 0 0 18px;
  color: #77857d;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
  letter-spacing: 0.14em;
}

.research-item h3 {
  margin: 0 0 24px;
  font-size: clamp(28px, 2.3vw, 36px);
  font-weight: 570;
  letter-spacing: -0.055em;
  line-height: 1.08;
}

.research-body > p:not(.research-en) {
  max-width: 440px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
  transition: color 300ms ease;
}

.research-item:hover .research-body > p:not(.research-en) {
  color: var(--muted);
}

.research-case {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 22px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.research-case span {
  color: #7d8981;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 7px;
  letter-spacing: 0.12em;
}

.research-case strong {
  color: #315f54;
  font-size: 12px;
  font-weight: 620;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: auto 0 0;
  padding: 28px 0 0;
  list-style: none;
}

.tag-list li {
  padding: 7px 12px;
  color: #6e7d75;
  border: 1px solid rgba(6, 21, 18, 0.15);
  border-radius: 999px;
  font-size: 10px;
  transition:
    color 300ms ease,
    border-color 300ms ease;
}

.research-item:hover .tag-list li {
  color: #315f54;
  border-color: rgba(6, 21, 18, 0.28);
}

.research-proof {
  grid-column: 2;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  transition: border-color 300ms ease;
}

.research-proof span {
  display: block;
  margin-bottom: 10px;
  color: #7d8981;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 8px;
  letter-spacing: 0.12em;
}

.research-proof p {
  max-width: 500px;
  margin: 0;
  color: #65736b;
  font-size: 12px;
  line-height: 1.8;
  transition: color 300ms ease;
}

.research-item:hover .research-proof {
  border-color: rgba(255, 255, 255, 0.16);
}

.research-item:hover .research-proof p {
  color: rgba(249, 255, 245, 0.62);
}

.round-link {
  position: absolute;
  top: 24px;
  right: 24px;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border: 1px solid var(--line);
  border-radius: 50%;
  font-size: 17px;
  transition:
    color 300ms ease,
    background 300ms ease,
    border-color 300ms ease,
    transform 300ms var(--ease-out);
}

.round-link:hover {
  transform: rotate(45deg);
}

.research-item:hover .round-link {
  color: var(--ink);
  border-color: var(--acid);
  background: var(--acid);
}

.work {
  padding: 105px 0 115px;
  border-top: 1px solid var(--line);
  background: #e8ebe3;
}

.work-heading {
  margin-bottom: 64px;
}

.work-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.work-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 480px;
  padding: 24px;
  overflow: hidden;
  isolation: isolate;
  transition:
    transform 400ms var(--ease-out),
    box-shadow 400ms ease;
}

.work-card::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  opacity: 0.45;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 48px 48px;
  content: "";
  -webkit-mask-image: linear-gradient(to bottom, transparent, black);
  mask-image: linear-gradient(to bottom, transparent, black);
}

.work-card:hover {
  z-index: 2;
  box-shadow: 0 24px 70px rgba(6, 21, 18, 0.14);
  transform: translateY(-8px);
}

.work-card-dark {
  color: var(--white);
  background:
    radial-gradient(circle at 78% 64%, rgba(99, 230, 255, 0.12), transparent 30%),
    var(--ink);
}

.work-card-acid {
  color: var(--ink);
  background: var(--acid);
}

.work-card-cyan {
  color: var(--ink);
  background: var(--cyan);
}

.work-card-paper {
  color: var(--ink);
  border: 1px solid rgba(6, 21, 18, 0.18);
  background: var(--paper-bright);
}

.work-card-acid::before,
.work-card-cyan::before,
.work-card-paper::before {
  opacity: 0.24;
  background-image:
    linear-gradient(rgba(6, 21, 18, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(6, 21, 18, 0.12) 1px, transparent 1px);
}

.work-meta {
  display: flex;
  justify-content: space-between;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
  letter-spacing: 0.12em;
}

.work-meta span:last-child {
  font-size: 13px;
  transition: transform 300ms var(--ease-out);
}

.work-card:hover .work-meta span:last-child {
  transform: rotate(45deg);
}

.work-card-copy {
  max-width: 660px;
  margin: auto 0;
  padding: 38px 0;
}

.work-signal {
  margin: 0 0 25px;
  opacity: 0.62;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
  letter-spacing: 0.11em;
}

.work-card h3 {
  margin: 0 0 24px;
  font-size: clamp(30px, 2.8vw, 44px);
  font-weight: 580;
  letter-spacing: -0.06em;
  line-height: 1.04;
}

.work-card-copy > p:last-child {
  max-width: 540px;
  margin: 0;
  opacity: 0.65;
  font-size: 12px;
  line-height: 1.75;
}

.work-data {
  display: flex;
  align-items: end;
  gap: 18px;
  margin-bottom: 26px;
}

.work-data strong {
  font-size: clamp(58px, 5.5vw, 82px);
  font-weight: 480;
  letter-spacing: -0.09em;
  line-height: 0.78;
}

.work-data span {
  max-width: 100px;
  opacity: 0.55;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 8px;
  letter-spacing: 0.1em;
  line-height: 1.5;
}

.work-note {
  margin: 0;
  padding-top: 20px;
  opacity: 0.58;
  border-top: 1px solid currentColor;
  font-size: 10px;
}

.impact {
  position: relative;
  overflow: hidden;
  padding: 95px 0 85px;
  color: var(--white);
  background:
    radial-gradient(circle at 95% 15%, rgba(99, 230, 255, 0.1), transparent 28%),
    var(--ink);
}

.impact-noise {
  position: absolute;
  inset: 0;
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(to bottom, black, transparent);
  mask-image: linear-gradient(to bottom, black, transparent);
}

.impact .section-shell {
  position: relative;
}

.impact-heading {
  display: grid;
  grid-template-columns: 0.3fr 1fr;
  gap: 40px;
}

.impact-heading h2 {
  margin-top: 0;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 64px;
  border-top: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
}

.metrics article {
  min-height: 190px;
  padding: 28px 24px 24px 0;
}

.metrics article + article {
  padding-left: 30px;
  border-left: 1px solid var(--line-light);
}

.metric-value {
  margin: 0;
  color: var(--acid);
  font-size: clamp(52px, 5vw, 74px);
  font-weight: 470;
  letter-spacing: -0.07em;
  line-height: 1;
}

.metric-value sup {
  font-size: 0.35em;
  font-weight: 500;
  vertical-align: super;
}

.metrics article > p:nth-child(2) {
  margin: 30px 0 8px;
  font-size: 13px;
}

.metrics article > span {
  color: rgba(249, 255, 245, 0.35);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 8px;
  letter-spacing: 0.13em;
}

.metrics-source {
  margin: 16px 0 0;
  color: rgba(249, 255, 245, 0.28);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 8px;
  letter-spacing: 0.1em;
}

.impact-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 50px;
  margin-top: 40px;
}

.impact-footer > p {
  max-width: 660px;
  margin: 0;
  color: rgba(249, 255, 245, 0.55);
  font-size: 14px;
  line-height: 1.9;
}

.button-light {
  flex: 0 0 auto;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.35);
}

.button-light:hover {
  color: var(--ink);
  border-color: var(--white);
  background: var(--white);
}

.portal {
  padding: 72px 0 80px;
  background: var(--paper);
}

.portal-heading {
  margin-bottom: 38px;
}

.portal-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
}

.portal-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 152px;
  padding: 18px 20px 18px 0;
  overflow: hidden;
  color: var(--ink);
  background: transparent;
  transition:
    color 450ms ease,
    padding 300ms var(--ease-out);
}

.portal-card:nth-child(2) {
  color: var(--ink);
  padding-left: 20px;
  border-left: 1px solid var(--line);
}

.portal-card:nth-child(3) {
  color: var(--ink);
  padding-left: 20px;
  border-left: 1px solid var(--line);
}

.portal-card:hover {
  color: #315f54;
}

.portal-card:first-child:hover {
  background: transparent;
}

.portal-card:nth-child(2):hover {
  background: transparent;
}

.portal-card:nth-child(3):hover {
  background: transparent;
}

.portal-card-top {
  display: flex;
  justify-content: flex-end;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 11px;
}

.portal-card-top span:last-child {
  font-size: 17px;
  transition: transform 300ms var(--ease-out);
}

.portal-card:hover .portal-card-top span:last-child {
  transform: rotate(45deg);
}

.portal-card div:last-child > p {
  margin: 0 0 6px;
  opacity: 0.55;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
  letter-spacing: 0.13em;
}

.portal-card h3 {
  margin: 0 0 8px;
  font-size: clamp(26px, 2.2vw, 34px);
  font-weight: 570;
  letter-spacing: -0.06em;
}

.portal-card div:last-child > span {
  display: block;
  max-width: 300px;
  opacity: 0.6;
  font-size: 11px;
  line-height: 1.7;
}

.join {
  position: relative;
  min-height: 460px;
  overflow: hidden;
  padding: 72px 0;
  color: var(--ink);
  background: var(--acid);
}

.join-pattern {
  position: absolute;
  right: -0.08em;
  bottom: -0.27em;
  color: transparent;
  font-size: min(35vw, 560px);
  font-weight: 800;
  letter-spacing: -0.11em;
  line-height: 0.8;
  -webkit-text-stroke: 1px rgba(6, 21, 18, 0.14);
  pointer-events: none;
}

.join-inner {
  position: relative;
  display: grid;
  grid-template-columns: 0.22fr 1.35fr 0.43fr;
  gap: 40px;
}

.join h2 {
  font-size: clamp(44px, 4vw, 58px);
  text-wrap: balance;
}

html[lang="zh-CN"] .join h2 {
  white-space: nowrap;
}

.join-kicker {
  margin: 0;
  font-size: 15px;
}

.join-side {
  align-self: end;
  padding-bottom: 10px;
}

.join-side p {
  margin: 0 0 34px;
  font-size: 14px;
  line-height: 1.9;
}

.button-dark {
  color: var(--white);
  background: var(--ink);
}

.site-footer {
  padding: 64px max(48px, calc((100vw - 1440px) / 2)) 28px;
  color: var(--white);
  background: var(--ink);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.15fr 0.65fr auto;
  align-items: start;
  gap: 64px;
  min-height: 0;
  padding-bottom: 64px;
}

.footer-brand {
  font-size: 20px;
}

.footer-identity {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  gap: 28px;
}

.footer-identity > p {
  max-width: 250px;
  margin: 0;
  color: rgba(249, 255, 245, 0.4);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
  letter-spacing: 0.15em;
  line-height: 1.8;
}

.footer-location,
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 13px;
}

.footer-location > span,
.footer-contact > span {
  color: rgba(249, 255, 245, 0.35);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 8px;
  letter-spacing: 0.11em;
}

.footer-location > strong {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 0.03em;
}

.footer-contact {
  justify-self: end;
  text-align: right;
}

.footer-contact a {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 7px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.28);
}

.footer-contact a small {
  color: var(--acid);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 8px;
  letter-spacing: 0.12em;
}

.footer-contact a strong {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: clamp(16px, 1.45vw, 21px);
  font-weight: 400;
  letter-spacing: -0.025em;
}

.footer-contact a i {
  color: var(--acid);
  font-style: normal;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 20px;
  color: rgba(249, 255, 245, 0.35);
  border-top: 1px solid var(--line-light);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 8px;
  letter-spacing: 0.1em;
}

.footer-bottom p {
  margin: 0;
}

.doc-toast {
  position: fixed;
  z-index: 200;
  right: 24px;
  bottom: 24px;
  max-width: calc(100vw - 48px);
  padding: 16px 20px;
  color: rgba(249, 255, 245, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(6, 21, 18, 0.94);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.24);
  font-size: 12px;
  line-height: 1.6;
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
  transition:
    opacity 250ms ease,
    transform 350ms var(--ease-out);
}

.doc-toast span:first-child {
  display: block;
  color: var(--acid);
  font-weight: 700;
}

.doc-toast span:last-child {
  display: block;
  color: rgba(249, 255, 245, 0.65);
  font-weight: 400;
}

.doc-toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(36px);
  transition:
    opacity 800ms var(--ease-out),
    transform 900ms var(--ease-out);
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

.lang-en .hero h1 {
  max-width: 820px;
  font-size: clamp(58px, 6vw, 96px);
  letter-spacing: -0.065em;
}

.lang-en .hero-intro {
  max-width: 650px;
}

.lang-en .section-heading h2,
.lang-en .manifesto-lead,
.lang-en .join h2 {
  letter-spacing: -0.05em;
  line-height: 1.03;
}

.lang-en .discipline-map h3 {
  font-size: clamp(18px, 1.4vw, 22px);
}

.lang-en .research-item h3 {
  font-size: clamp(25px, 2vw, 32px);
}

@media (max-width: 1180px) {
  :root {
    --shell: min(100% - 64px, 1080px);
  }

  .hero {
    min-height: 900px;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr) minmax(390px, 0.8fr);
    gap: 40px;
    min-height: 820px;
  }

  .hero h1 {
    font-size: clamp(68px, 8.5vw, 100px);
  }

  .energy-scope {
    max-width: 520px;
  }

  .manifesto-copy {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .manifesto-detail {
    max-width: 520px;
  }

  .discipline-map article {
    padding-right: 14px;
  }

  .discipline-map article + article {
    padding-left: 14px;
  }

  .research-item {
    grid-template-columns: 0.2fr 1fr auto;
  }

  .metrics article {
    padding-right: 18px;
  }

  .metrics article + article {
    padding-left: 18px;
  }

  .metric-value {
    font-size: 66px;
  }
}

@media (max-width: 900px) {
  :root {
    --shell: calc(100% - 48px);
  }

  .site-header {
    grid-template-columns: 1fr auto;
  }

  .desktop-nav,
  .header-actions {
    display: none;
  }

  .menu-button,
  .mobile-nav {
    display: block;
  }

  .hero {
    min-height: 1320px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    align-content: start;
    gap: 72px;
    padding-top: 170px;
  }

  .hero-copy {
    max-width: 720px;
  }

  .energy-scope {
    width: min(100%, 620px);
    justify-self: center;
  }

  .hero-foot {
    right: 24px;
    left: 24px;
  }

  .manifesto {
    padding: 110px 0 120px;
  }

  .manifesto-grid,
  .section-heading,
  .impact-heading,
  .join-inner {
    grid-template-columns: 1fr;
  }

  .manifesto-grid,
  .impact-heading,
  .join-inner {
    gap: 54px;
  }

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

  .discipline-map article {
    min-height: 170px;
    padding: 24px 20px;
    border-bottom: 1px solid var(--line);
  }

  .discipline-map article + article {
    padding-left: 20px;
  }

  .discipline-map article:nth-child(odd) {
    padding-left: 0;
    border-left: 0;
  }

  .discipline-map article:nth-child(5) {
    grid-column: 1 / -1;
  }

  .discipline-map article > p {
    margin-top: 28px;
  }

  .research-loop {
    grid-template-columns: 1fr;
  }

  .research-loop ol {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 42px;
  }

  .research-loop li:nth-child(3) {
    padding-left: 0;
  }

  .research-loop li:nth-child(3)::before {
    display: none;
  }

  .section-heading {
    gap: 40px;
    margin-bottom: 70px;
  }

  .section-heading > p {
    max-width: 580px;
  }

  .research {
    padding: 82px 0 90px;
  }

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

  .research-item {
    min-height: 330px;
  }

  .research-item + .research-item {
    border-left: 0;
  }

  .research-body {
    gap: 0;
  }

  .research-body > p:not(.research-en),
  .tag-list,
  .research-proof {
    grid-column: 1;
  }

  .tag-list {
    margin-top: auto;
  }

  .work {
    padding: 82px 0 90px;
  }

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

  .work-card {
    min-height: 430px;
  }

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

  .metrics article:nth-child(3) {
    border-left: 0;
    border-top: 1px solid var(--line-light);
  }

  .metrics article:nth-child(4) {
    border-top: 1px solid var(--line-light);
  }

  .impact-footer {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .portal-card {
    min-height: 140px;
    padding-top: 16px;
    padding-bottom: 16px;
  }

  .portal-card h3 {
    font-size: 34px;
  }

  .join-side {
    max-width: 500px;
  }

  html[lang="zh-CN"] .join h2 {
    white-space: normal;
  }
}

@media (max-width: 600px) {
  :root {
    --shell: calc(100% - 32px);
  }

  html {
    scroll-padding-top: 76px;
  }

  .site-header,
  .site-header.is-scrolled {
    top: 8px;
    width: calc(100vw - 16px);
    height: 60px;
    padding: 0 14px;
    border-radius: 14px;
  }

  .brand-mark {
    width: 28px;
    height: 28px;
  }

  .brand-word {
    font-size: 14px;
  }

  .hero {
    min-height: 1120px;
  }

  .hero-inner {
    gap: 56px;
    min-height: auto;
    padding: 138px 0 120px;
  }

  .eyebrow {
    margin-bottom: 20px;
    font-size: 9px;
  }

  .hero h1 {
    font-size: clamp(54px, 14.2vw, 62px);
    letter-spacing: -0.08em;
  }

  .lang-en .hero h1 {
    font-size: 44px;
    letter-spacing: -0.055em;
  }

  .hero-intro {
    margin-top: 28px;
    font-size: 14px;
    line-height: 1.8;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 20px;
    margin-top: 34px;
  }

  .energy-scope {
    clip-path: none;
  }

  .reactor-stage {
    height: 390px;
    margin: 8px 8px 0;
  }

  .research-mode-switch {
    top: 8px;
    left: 8px;
  }

  .research-mode-switch button {
    padding: 5px 6px;
    font-size: 8px;
  }

  .flow-equation {
    top: 47px;
    gap: 6px;
    font-size: 8px;
  }

  .flow-map {
    top: 56px;
    height: calc(100% - 56px);
  }

  .system-node {
    min-width: 48px;
    gap: 3px;
  }

  .system-node span {
    width: 28px;
    height: 28px;
    font-size: 7px;
  }

  .system-node small {
    font-size: 7px;
  }

  .aggregation-hub {
    width: 92px;
  }

  .aggregation-hub strong {
    font-size: 14px;
  }

  .field-contours {
    width: 82%;
  }

  .field-center {
    min-width: 108px;
    padding: 12px 8px;
  }

  .field-center strong {
    font-size: 15px;
  }

  .field-label {
    font-size: 5px;
  }

  .node-pv {
    left: 2%;
  }

  .node-load {
    left: 1%;
  }

  .node-storage {
    left: 6%;
  }

  .node-ev {
    left: 40%;
  }

  .node-grid {
    right: 1%;
  }

  .node-service {
    right: 1%;
  }

  .reactor-hint {
    display: none;
  }

  .reactor-core {
    width: 90px;
  }

  .reactor-core strong {
    font-size: 9px;
  }

  .human-mark {
    width: 28px;
    height: 28px;
  }

  .reactor-label {
    font-size: 6px;
  }

  .reactor-axis {
    gap: 0;
    padding: 3px 5px;
    font-size: 9px;
  }

  .reactor-axis small {
    display: none;
  }

  .reactor-detail {
    width: auto;
    min-height: 0;
    margin: 0 16px;
    padding: 0 38px 0 0;
  }

  .reactor-detail.is-visible {
    max-height: 120px;
    padding: 12px 38px 12px 0;
  }

  .reactor-detail > strong {
    font-size: 15px;
  }

  .depth-scale {
    display: none;
  }

  .scope-topline {
    padding: 16px 16px 0;
    font-size: 7px;
  }

  .scope-readout {
    margin: -8px 16px 16px;
  }

  .scope-readout div {
    padding-top: 14px;
  }

  .scope-readout div + div {
    padding-left: 8px;
  }

  .scope-readout span {
    font-size: 6px;
  }

  .scope-readout strong {
    font-size: 8px;
  }

  .hero-foot {
    right: 16px;
    bottom: 22px;
    left: 16px;
    font-size: 7px;
  }

  .hero-foot p:first-child {
    display: none;
  }

  .manifesto {
    padding: 72px 0 80px;
  }

  .manifesto-grid {
    gap: 40px;
  }

  .manifesto-lead {
    font-size: 39px;
  }

  .manifesto-detail {
    font-size: 13px;
  }

  .discipline-map {
    grid-template-columns: repeat(2, 1fr);
    border-bottom: 0;
  }

  .discipline-map article,
  .discipline-map article + article,
  .discipline-map article:nth-child(odd) {
    min-height: 150px;
    padding: 20px 12px 22px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    border-left: 0;
  }

  .discipline-map article:nth-child(even) {
    padding-left: 12px;
    border-left: 1px solid var(--line);
  }

  .discipline-map article:nth-child(5) {
    grid-column: 1 / -1;
  }

  .discipline-map article > p {
    margin-top: 22px;
  }

  .discipline-map h3 {
    margin-bottom: 10px;
    font-size: 28px;
  }

  .research-loop {
    gap: 30px;
  }

  .research-loop ol {
    grid-template-columns: 1fr;
    row-gap: 0;
  }

  .research-loop li,
  .research-loop li + li,
  .research-loop li:nth-child(3) {
    padding: 22px 0;
    border-top: 1px solid var(--line);
  }

  .research-loop li + li::before {
    display: none;
  }

  .research-loop li span {
    margin-bottom: 14px;
  }

  .section-heading h2 {
    font-size: 44px;
  }

  .lang-en .section-heading h2 {
    font-size: 38px;
  }

  .impact-heading h2 {
    font-size: 50px;
  }

  .join h2 {
    font-size: 40px;
    line-height: 1.08;
  }

  .lang-en .join h2 {
    font-size: 36px;
  }

  .research {
    padding: 72px 0 80px;
  }

  .research-item {
    min-height: 330px;
    padding: 22px 0;
  }

  .research-item:hover {
    padding: 22px 0;
  }

  .research-number {
    margin-bottom: 42px;
  }

  .research-body {
    gap: 0;
  }

  .research-en {
    margin-bottom: 2px;
  }

  .research-item h3 {
    font-size: 38px;
  }

  .research-body > p:not(.research-en) {
    font-size: 13px;
  }

  .research-proof {
    margin-top: 4px;
  }

  .round-link {
    top: 18px;
    right: 0;
    width: 48px;
    height: 48px;
    margin-left: 0;
    font-size: 17px;
  }

  .work {
    padding: 72px 0 80px;
  }

  .work-card {
    min-height: 430px;
    padding: 22px;
  }

  .work-card-copy {
    padding: 32px 0;
  }

  .work-card h3 {
    font-size: 40px;
  }

  .work-data {
    align-items: flex-start;
    flex-direction: column;
    gap: 15px;
  }

  .work-data strong {
    font-size: 72px;
  }

  .impact {
    padding: 92px 0;
  }

  .metrics {
    margin-top: 70px;
  }

  .metrics article {
    min-height: 218px;
    padding: 28px 12px 20px 0;
  }

  .metrics article + article {
    padding-left: 14px;
  }

  .metric-value {
    font-size: 48px;
  }

  .metrics article > p:nth-child(2) {
    min-height: 40px;
    margin-top: 32px;
    font-size: 12px;
  }

  .metrics article > span {
    font-size: 6px;
  }

  .portal {
    padding: 72px 0 80px;
  }

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

  .portal-card {
    min-height: 118px;
    padding: 14px 0;
    border-left: 0;
  }

  .portal-card:nth-child(2),
  .portal-card:nth-child(3) {
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

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

  .join {
    min-height: 440px;
    padding: 72px 0;
  }

  .join-inner {
    gap: 45px;
  }

  .site-footer {
    padding: 52px 16px 24px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 34px;
    min-height: 0;
    padding-bottom: 50px;
  }

  .footer-contact {
    justify-self: start;
    text-align: left;
  }

  .footer-contact a strong {
    font-size: 16px;
  }

  .footer-bottom {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 16px;
  }

  .footer-bottom a {
    justify-self: end;
  }

  .research-flow {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .research-flow ol {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 24px;
  }

  .research-flow li:nth-child(3) {
    padding-left: 0;
    border-left: 0;
  }

  .research-flow li:nth-child(even)::after {
    display: none;
  }
}

/* HESL page polish: slightly larger navigation, clearer small text, and more balanced section spacing. */
.desktop-nav {
  gap: clamp(48px, 4.5vw, 72px);
  font-size: 15px;
  font-weight: 620;
  letter-spacing: 0.08em;
}

.header-link {
  padding: 12px 18px;
  font-size: 13px;
}

.language-switch button {
  min-width: 34px;
  height: 30px;
  font-size: 11px;
}

.hero-inner {
  min-height: 900px;
  padding-top: 176px;
  padding-bottom: 112px;
}

.eyebrow,
.section-index {
  font-size: 11.5px;
}

.hero-intro,
.manifesto-detail,
.research-body > p:not(.research-en),
.join-side p {
  font-size: 16.5px;
}

.button,
.text-link {
  font-size: 14px;
}

.scope-topline,
.research-mode-switch button,
.flow-equation,
.discipline-map article > span,
.discipline-map article > p,
.research-flow > p,
.research-loop > p,
.research-en,
.research-case span,
.tag-list li {
  font-size: 10.5px;
}

.aggregation-hub small,
.field-center small,
.field-label {
  font-size: 8px;
}

.discipline-map small,
.research-flow small,
.research-loop li small,
.portal-card div:last-child > span {
  font-size: 12.5px;
}

.portal {
  padding: 96px 0 104px;
}

.portal-heading {
  margin-bottom: 52px;
}

.portal-card {
  min-height: 184px;
  padding-top: 24px;
  padding-bottom: 24px;
}

.portal-card:nth-child(2),
.portal-card:nth-child(3) {
  padding-left: 28px;
}

.portal-card div:last-child > p {
  margin-bottom: 8px;
  font-size: 10.5px;
}

.portal-card h3 {
  margin-bottom: 10px;
  font-size: clamp(30px, 2.35vw, 38px);
}

.manifesto {
  padding: 96px 0 104px;
}

.discipline-map article {
  min-height: 154px;
  padding-top: 22px;
  padding-bottom: 22px;
}

.research {
  padding: 104px 0 112px;
}

.section-heading {
  margin-bottom: 74px;
}

.research-item {
  min-height: 440px;
  padding-top: 34px;
  padding-bottom: 34px;
}

.research-item h3 {
  font-size: clamp(31px, 2.25vw, 38px);
}

.research-case strong {
  font-size: 14px;
}

.round-link {
  width: 62px;
  height: 62px;
  font-size: 20px;
}

.join {
  min-height: 520px;
  padding: 104px 0;
}

.join-inner {
  align-items: center;
}

.join-kicker {
  font-size: 17px;
}

@media (max-width: 1180px) {
  .desktop-nav {
    gap: 42px;
  }
}

@media (max-width: 900px) {
  .hero-inner {
    min-height: 0;
    padding-top: 170px;
    padding-bottom: 120px;
  }

  .portal,
  .manifesto,
  .research,
  .join {
    padding-top: 88px;
    padding-bottom: 96px;
  }
}

@media (max-width: 600px) {
  .hero-intro,
  .manifesto-detail,
  .research-body > p:not(.research-en),
  .join-side p {
    font-size: 15px;
  }

  .portal-card {
    min-height: 172px;
  }

  .portal-card:nth-child(2),
  .portal-card:nth-child(3) {
    padding-left: 0;
  }

  .join {
    min-height: 460px;
  }
}

/* Second-round polish: restore airier rhythm while reducing empty visual gaps. */
.desktop-nav {
  gap: clamp(68px, 6vw, 104px);
  font-size: 16px;
  letter-spacing: 0.14em;
}

.desktop-nav a {
  padding: 0 6px;
}

.hero-inner {
  min-height: 860px;
  padding-top: 162px;
  padding-bottom: 84px;
}

.energy-scope {
  width: min(100%, 610px);
}

.reactor-stage {
  height: 455px;
}

.research-mode-switch {
  gap: 9px;
}

.research-mode-switch button {
  padding: 8px 12px;
  font-size: 11px;
  letter-spacing: 0.08em;
}

.flow-equation {
  top: 58px;
  gap: 14px;
  font-size: 12px;
}

.system-node small {
  font-size: 10px;
  letter-spacing: 0.04em;
}

.system-node span {
  width: 38px;
  height: 38px;
  font-size: 9px;
}

.aggregation-hub {
  width: 126px;
}

.aggregation-hub strong,
.field-center strong {
  font-size: 20px;
}

.aggregation-hub small,
.field-center small,
.field-label {
  font-size: 9px;
}

.scope-topline,
.scope-readout span,
.reactor-detail > span,
.discipline-map article > span,
.discipline-map article > p,
.research-flow > p,
.research-loop > p,
.research-en,
.research-case span,
.portal-card div:last-child > p {
  font-size: 11.5px;
  letter-spacing: 0.14em;
}

.scope-readout strong {
  font-size: 15px;
}

.reactor-detail > strong {
  font-size: 18px;
}

.reactor-detail > p {
  font-size: 13px;
  line-height: 1.75;
}

.section-heading h2,
.manifesto-lead,
.join h2 {
  font-size: clamp(48px, 4.4vw, 64px);
}

.section-heading > p,
.manifesto-detail,
.research-body > p:not(.research-en),
.join-side p {
  font-size: 17px;
  line-height: 1.9;
}

.discipline-map h3,
.research-item h3,
.portal-card h3 {
  font-size: clamp(32px, 2.45vw, 40px);
}

.discipline-map small,
.research-flow small,
.research-loop li small,
.portal-card div:last-child > span,
.tag-list li {
  font-size: 13.5px;
}

.button,
.text-link,
.header-link {
  font-size: 15px;
}

.button {
  min-height: 62px;
  padding-right: 28px;
  padding-left: 28px;
}

.round-link {
  width: 70px;
  height: 70px;
  font-size: 23px;
}

.manifesto {
  padding: 84px 0 88px;
}

.manifesto-grid {
  gap: 38px 40px;
}

.discipline-map article {
  min-height: 142px;
}

.research-flow {
  gap: 30px;
}

.research {
  padding: 88px 0 94px;
}

.section-heading {
  margin-bottom: 54px;
}

.research-item {
  min-height: 392px;
}

.research-body {
  gap: 18px;
}

.portal {
  padding: 80px 0 86px;
}

.portal-heading {
  margin-bottom: 38px;
}

.portal-card {
  min-height: 164px;
}

.portal-card:nth-child(2),
.portal-card:nth-child(3) {
  padding-left: 34px;
}

.join {
  min-height: 470px;
  padding: 82px 0;
}

.join-inner {
  grid-template-columns: 0.2fr 1.28fr 0.52fr;
  gap: 54px;
}

@media (max-width: 1180px) {
  .desktop-nav {
    gap: 56px;
    font-size: 15px;
  }

  .section-heading h2,
  .manifesto-lead,
  .join h2 {
    font-size: clamp(44px, 5vw, 58px);
  }
}

@media (max-width: 900px) {
  .hero-inner {
    padding-top: 156px;
    padding-bottom: 92px;
  }

  .reactor-stage {
    height: 430px;
  }

  .portal,
  .manifesto,
  .research,
  .join {
    padding-top: 76px;
    padding-bottom: 82px;
  }

  .portal-card:nth-child(2),
  .portal-card:nth-child(3) {
    padding-left: 22px;
  }
}

@media (max-width: 600px) {
  .section-heading h2,
  .manifesto-lead,
  .join h2,
  .discipline-map h3,
  .research-item h3,
  .portal-card h3 {
    font-size: 34px;
    letter-spacing: -0.045em;
  }

  .research-mode-switch {
    gap: 5px;
  }

  .research-mode-switch button {
    padding: 6px 7px;
    font-size: 9px;
  }

  .flow-equation {
    gap: 7px;
    font-size: 9px;
  }

  .portal-card:nth-child(2),
  .portal-card:nth-child(3) {
    padding-left: 0;
  }
}

/* Third-round polish: clearer labels, no highlight underline, and less cramped nav text. */
.desktop-nav {
  gap: clamp(92px, 7.8vw, 138px);
  font-size: 17px;
  letter-spacing: 0.18em;
}

.desktop-nav a {
  min-width: 2.8em;
  padding: 0 10px;
  text-align: center;
}

.site-header {
  width: min(1500px, calc(100vw - 32px));
}

.site-header.is-scrolled {
  width: min(1320px, calc(100vw - 28px));
}

.manifesto-lead {
  max-width: 980px;
}

.manifesto-lead strong::after {
  display: none;
}

html[lang="zh-CN"] .manifesto-lead {
  font-size: clamp(42px, 3.55vw, 54px);
  letter-spacing: -0.055em;
  line-height: 1.22;
}

html[lang="zh-CN"] .manifesto-lead strong {
  white-space: nowrap;
}

html[lang="zh-CN"] .research .section-heading h2 {
  font-size: clamp(42px, 3.6vw, 56px);
  letter-spacing: -0.05em;
  white-space: nowrap;
}

.footer-contact > span {
  font-size: 13px;
  letter-spacing: 0.12em;
}

.footer-contact a small {
  font-size: 11px;
}

.footer-contact a strong {
  font-size: clamp(24px, 2.2vw, 34px);
}

.scope-topline {
  font-size: 12.5px;
}

.research-mode-switch button {
  font-size: 12px;
}

.flow-equation {
  font-size: 13px;
}

.field-label-source,
.field-label-output,
.operation-objectives span {
  font-size: 12px;
}

.operation-objectives b {
  font-size: 15px;
}

.operation-objectives small {
  font-size: 10px;
}

.system-node small {
  font-size: 11.5px;
}

.aggregation-hub strong,
.field-center strong {
  font-size: 22px;
}

.aggregation-hub small,
.field-center small {
  font-size: 10px;
}

.reactor-detail > strong {
  font-size: 20px;
}

.reactor-detail > p {
  font-size: 14px;
}

.section-heading > p,
.manifesto-detail,
.research-body > p:not(.research-en),
.join-side p,
.portal-card div:last-child > span {
  font-size: 18px;
}

.discipline-map small,
.research-flow small,
.research-loop li small,
.tag-list li {
  font-size: 14.5px;
}

.button,
.text-link,
.header-link {
  font-size: 16px;
}

.join-kicker {
  font-size: 19px;
}

@media (max-width: 1180px) {
  .desktop-nav {
    gap: 68px;
    font-size: 16px;
  }

  html[lang="zh-CN"] .research .section-heading h2 {
    white-space: normal;
  }
}

@media (max-width: 980px) {
  .desktop-nav {
    gap: 48px;
    letter-spacing: 0.14em;
  }
}

@media (max-width: 900px) {
  .footer-contact > span {
    font-size: 12px;
  }

  .footer-contact a strong {
    font-size: 26px;
  }
}

@media (max-width: 600px) {
  html[lang="zh-CN"] .manifesto-lead,
  html[lang="zh-CN"] .research .section-heading h2 {
    font-size: 34px;
    white-space: normal;
  }

  html[lang="zh-CN"] .manifesto-lead strong {
    white-space: normal;
  }

  .footer-contact a strong {
    font-size: 22px;
  }
}

/* Fourth-round polish: stronger lab identity, larger footer/join labels, and airier navigation. */
.brand-mark {
  width: 40px;
  height: 40px;
}

.brand-word {
  font-size: 21px;
  letter-spacing: 0.16em;
}

.footer-brand .brand-mark {
  width: 44px;
  height: 44px;
}

.footer-brand .brand-word {
  font-size: 24px;
}

.desktop-nav {
  gap: clamp(112px, 9vw, 166px);
  font-size: 18px;
  letter-spacing: 0.24em;
}

.desktop-nav a {
  min-width: 3.6em;
  padding: 0 16px;
}

.footer-location > span {
  font-size: 12px;
  letter-spacing: 0.13em;
}

.footer-location > strong {
  font-size: 21px;
  line-height: 1.75;
}

.footer-contact > span {
  font-size: 15px;
  letter-spacing: 0.14em;
}

.join-kicker {
  font-size: 23px;
  line-height: 1.65;
}

.join .section-index {
  font-size: 15px;
  letter-spacing: 0.24em;
}

.research-flow strong {
  font-size: 18px;
  line-height: 1.45;
}

.research-flow small {
  font-size: 14px;
}

html[lang="zh-CN"] .manifesto-lead {
  max-width: 1040px;
  font-size: clamp(40px, 3.35vw, 52px);
  line-height: 1.28;
}

html[lang="zh-CN"] .manifesto-lead strong {
  white-space: normal;
}

@media (max-width: 1320px) {
  .desktop-nav {
    gap: clamp(76px, 6.6vw, 112px);
  }
}

@media (max-width: 1180px) {
  .brand-mark {
    width: 36px;
    height: 36px;
  }

  .brand-word {
    font-size: 19px;
  }

  .desktop-nav {
    gap: 58px;
    font-size: 16px;
    letter-spacing: 0.18em;
  }
}

@media (max-width: 900px) {
  .footer-brand .brand-mark {
    width: 40px;
    height: 40px;
  }

  .footer-brand .brand-word {
    font-size: 22px;
  }

  .footer-location > strong {
    font-size: 19px;
  }

  .join-kicker {
    font-size: 21px;
  }
}

@media (max-width: 600px) {
  .brand-mark {
    width: 32px;
    height: 32px;
  }

  .brand-word {
    font-size: 17px;
  }

  .join .section-index {
    font-size: 13px;
  }

  .join-kicker {
    font-size: 19px;
  }

  .research-flow strong {
    font-size: 17px;
  }
}

/* Hero title spacing fix: loosen the Chinese headline characters specifically. */
html[lang="zh-CN"] .hero h1 {
  letter-spacing: 0.035em;
  line-height: 1.08;
}

html[lang="zh-CN"] .hero h1 span {
  display: inline-block;
}

@media (max-width: 600px) {
  html[lang="zh-CN"] .hero h1 {
    letter-spacing: 0.02em;
    line-height: 1.1;
  }
}

/* Final Chinese typography pass: prevent awkward one-character wraps and loosen major labels. */
html[lang="zh-CN"] .hero-intro {
  max-width: 780px;
  font-size: 19px;
  letter-spacing: 0.055em;
  line-height: 2;
  white-space: nowrap;
}

html[lang="zh-CN"] .manifesto-lead,
html[lang="zh-CN"] .join h2,
html[lang="zh-CN"] .research .section-heading h2 {
  letter-spacing: 0.035em;
  line-height: 1.22;
}

html[lang="zh-CN"] .manifesto-lead {
  max-width: 1120px;
}

html[lang="zh-CN"] .manifesto-lead strong,
html[lang="zh-CN"] .join h2,
html[lang="zh-CN"] .research .section-heading h2 {
  white-space: nowrap;
}

html[lang="zh-CN"] .research-item h3,
html[lang="zh-CN"] .discipline-map h3,
html[lang="zh-CN"] .portal-card h3,
html[lang="zh-CN"] .portal-heading h2 {
  letter-spacing: 0.045em;
  line-height: 1.25;
}

html[lang="zh-CN"] .research-item h3 {
  font-size: clamp(34px, 2.55vw, 42px);
}

html[lang="zh-CN"] .discipline-map h3 {
  font-size: clamp(31px, 2.15vw, 38px);
}

html[lang="zh-CN"] .portal-heading h2,
html[lang="zh-CN"] .portal-card h3 {
  font-size: clamp(33px, 2.5vw, 42px);
}

.portal-grid {
  column-gap: 18px;
}

.portal-card {
  padding-right: 30px;
  padding-left: 30px;
}

.portal-card:first-child {
  padding-left: 0;
}

.portal-card:nth-child(2),
.portal-card:nth-child(3) {
  padding-left: 42px;
}

.footer-bottom,
.footer-bottom a {
  font-size: 12px;
}

.footer-location > span {
  font-size: 14px;
}

.footer-location > strong {
  font-size: 24px;
  letter-spacing: 0.08em;
}

.scope-readout span {
  font-size: 14px;
  letter-spacing: 0.13em;
}

.scope-readout strong {
  font-size: 18px;
}

@media (max-width: 1180px) {
  html[lang="zh-CN"] .hero-intro,
  html[lang="zh-CN"] .manifesto-lead strong,
  html[lang="zh-CN"] .join h2,
  html[lang="zh-CN"] .research .section-heading h2 {
    white-space: normal;
  }

  html[lang="zh-CN"] .hero-intro {
    max-width: 680px;
  }
}

@media (max-width: 900px) {
  .portal-grid {
    column-gap: 0;
  }

  .portal-card,
  .portal-card:nth-child(2),
  .portal-card:nth-child(3) {
    padding-left: 22px;
    padding-right: 22px;
  }

  .portal-card:first-child {
    padding-left: 0;
  }
}

@media (max-width: 600px) {
  html[lang="zh-CN"] .hero-intro {
    max-width: 100%;
    font-size: 16px;
    letter-spacing: 0.025em;
    white-space: normal;
  }

  html[lang="zh-CN"] .manifesto-lead,
  html[lang="zh-CN"] .join h2,
  html[lang="zh-CN"] .research .section-heading h2,
  html[lang="zh-CN"] .research-item h3,
  html[lang="zh-CN"] .discipline-map h3,
  html[lang="zh-CN"] .portal-card h3,
  html[lang="zh-CN"] .portal-heading h2 {
    letter-spacing: 0.02em;
  }

  .footer-bottom,
  .footer-bottom a {
    font-size: 10px;
  }

  .footer-location > strong {
    font-size: 20px;
  }

  .scope-readout span {
    font-size: 10px;
  }
}

/* Hero bottom meta line: make the school/location/scroll hint readable. */
.hero-foot {
  font-size: 14px;
  letter-spacing: 0.16em;
}

.scroll-note {
  gap: 14px;
}

.scroll-note span {
  width: 48px;
}

@media (max-width: 900px) {
  .hero-foot {
    font-size: 12px;
  }
}

@media (max-width: 600px) {
  .hero-foot {
    font-size: 10px;
    letter-spacing: 0.1em;
  }
}

/* User-requested typography refinements: balanced hero intro, larger eyebrow, footer note matches LOCATION. */
.hero-eyebrow {
  font-size: 15px;
  letter-spacing: 0.2em;
}

html[lang="zh-CN"] .hero-intro {
  max-width: 720px;
  white-space: normal;
}

.footer-identity > p {
  max-width: 520px;
  font-size: 14px;
  letter-spacing: 0.16em;
  line-height: 1.8;
}

.footer-location > span {
  font-size: 14px;
}

@media (max-width: 900px) {
  .hero-eyebrow {
    font-size: 13px;
  }

  .footer-identity > p {
    font-size: 12px;
  }
}

@media (max-width: 600px) {
  .hero-eyebrow {
    font-size: 11px;
    letter-spacing: 0.14em;
  }

  .footer-identity > p {
    font-size: 10px;
  }
}

/* Final handoff typography: use one HeiTi-style sans family site-wide and tune footer contact. */
body,
button,
a,
.eyebrow,
.scope-topline,
.research-mode-switch button,
.flow-equation,
.system-node span,
.aggregation-hub small,
.field-center small,
.field-label,
.operation-objectives small,
.reactor-detail > span,
.depth-scale,
.scope-readout,
.hero-foot,
.section-index,
.discipline-map article > span,
.discipline-map article > p,
.research-flow > p,
.research-loop > p,
.research-en,
.research-case span,
.research-proof span,
.work-card > p,
.work-data span,
.metrics article > span,
.portal-card div:last-child > p,
.footer-identity > p,
.footer-location > span,
.footer-location > strong,
.footer-contact > span,
.footer-contact a small,
.footer-contact a strong,
.footer-bottom,
.doc-toast {
  font-family: "Microsoft YaHei", "SimHei", "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", Arial, sans-serif;
}

.footer-contact a strong {
  font-size: clamp(20px, 1.65vw, 26px);
  letter-spacing: 0.02em;
}

.footer-location > strong {
  font-size: clamp(22px, 1.75vw, 28px);
  letter-spacing: 0.05em;
}

.header-link {
  min-width: 150px;
}

@media (max-width: 900px) {
  .footer-contact a strong {
    font-size: 22px;
  }
}

@media (max-width: 600px) {
  .footer-contact a strong {
    font-size: 18px;
  }

  .footer-location > strong {
    font-size: 19px;
  }
}

/* Location alignment: keep the English label and Chinese address on the same left edge. */
.footer-location {
  align-items: flex-start;
  text-align: left;
}

.footer-location > span,
.footer-location > strong {
  display: block;
  width: max-content;
  text-align: left;
}

.footer-location > strong {
  white-space: nowrap;
}

/* Center the location block in the whole footer, not just inside its grid column. */
.footer-top {
  position: relative;
  grid-template-columns: 1fr 1fr;
}

.footer-location {
  position: absolute;
  top: 0;
  left: 50%;
  align-items: center;
  text-align: center;
  transform: translateX(-50%);
}

.footer-location > span,
.footer-location > strong {
  width: auto;
  text-align: center;
}

.footer-contact {
  grid-column: 2;
}

@media (max-width: 900px) {
  .footer-top {
    grid-template-columns: 1fr;
  }

  .footer-location {
    position: static;
    align-items: flex-start;
    text-align: left;
    transform: none;
  }

  .footer-location > span,
  .footer-location > strong {
    text-align: left;
  }

  .footer-contact {
    grid-column: auto;
  }
}

/* Final QA polish: force a unified HeiTi face and tighten the interdisciplinary section. */
body,
body *,
body *::before,
body *::after {
  font-family: "Microsoft YaHei", "SimHei", "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", Arial, sans-serif !important;
}

.manifesto {
  padding-top: 48px;
  padding-bottom: 76px;
}

.manifesto-grid {
  gap: 28px 40px;
}

.manifesto-copy {
  align-items: center;
}

.manifesto-lead {
  margin-top: 0;
}

.manifesto-detail {
  margin-bottom: 0;
}

.discipline-map {
  margin-top: 4px;
}

.research-flow {
  padding-top: 0;
}

.research-mode-switch button,
.flow-equation,
.scope-readout span,
.scope-readout strong,
.footer-bottom,
.footer-bottom a {
  font-weight: 500;
}

.footer-bottom,
.footer-bottom a {
  font-size: 14px;
  letter-spacing: 0.08em;
}

@media (max-width: 900px) {
  .manifesto {
    padding-top: 56px;
    padding-bottom: 72px;
  }
}

@media (max-width: 600px) {
  .manifesto {
    padding-top: 52px;
    padding-bottom: 64px;
  }

  .footer-bottom,
  .footer-bottom a {
    font-size: 11px;
  }
}

/* Resource portal grid: avoid duplicating research/join sections while keeping direct document entry points. */
/* Resource portal grid: four aligned document entries; no duplicate inline sections. */
.portal-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
  border-bottom: 0;
}

.portal-card,
.portal-card:first-child,
.portal-card:nth-child(2),
.portal-card:nth-child(3) {
  min-height: 176px;
  padding: 26px 28px;
  border-left: 0;
  justify-content: space-between;
}

.portal-card {
  border-bottom: 1px solid var(--line);
}

.portal-card:nth-child(n + 2) {
  border-left: 1px solid var(--line);
}

.portal-card h3 {
  min-height: 1.25em;
  font-size: clamp(24px, 1.72vw, 32px);
}

.portal-card div:last-child > span {
  max-width: 360px;
}

.dashboard-section {
  padding: 86px 0 96px;
  background:
    linear-gradient(90deg, transparent calc(50% - 1px), rgba(6, 21, 18, 0.04) 50%, transparent calc(50% + 1px)),
    var(--paper);
}

.updates-section {
  padding: 86px 0 92px;
  color: var(--white);
  background:
    radial-gradient(circle at 82% 18%, rgba(99, 230, 255, 0.1), transparent 28%),
    linear-gradient(135deg, #061512 0%, #0b211d 100%);
}

.updates-heading {
  margin-bottom: 44px;
}

.updates-heading h2 {
  color: var(--white);
}

.updates-heading > p {
  color: rgba(249, 255, 245, 0.58);
}

.updates-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
}

.updates-list article {
  min-height: 220px;
  padding: 30px 28px 34px 0;
}

.updates-list article + article {
  padding-left: 28px;
  border-left: 1px solid var(--line-light);
}

.updates-list span {
  color: var(--acid);
  font-size: 12px;
  letter-spacing: 0.16em;
}

.updates-list h3 {
  margin: 46px 0 18px;
  color: var(--white);
  font-size: clamp(28px, 2.1vw, 38px);
  letter-spacing: 0.04em;
}

.updates-list p {
  margin: 0;
  color: rgba(249, 255, 245, 0.62);
  font-size: 16px;
  line-height: 1.9;
}

.dashboard-heading {
  margin-bottom: 48px;
}

.dashboard-figure {
  margin: 0;
  padding: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.52);
}

.dashboard-figure img {
  width: 100%;
  height: auto;
  border: 1px solid rgba(6, 21, 18, 0.08);
}

.dashboard-figure figcaption {
  margin-top: 14px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

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

  .portal-card,
  .portal-card:first-child,
  .portal-card:nth-child(2),
  .portal-card:nth-child(3) {
    padding: 24px 22px;
  }

  .portal-card:nth-child(n + 2),
  .portal-card:nth-child(3n + 2),
  .portal-card:nth-child(3n + 3) {
    border-left: 0;
  }

  .portal-card:nth-child(even) {
    border-left: 1px solid var(--line);
  }

  .portal-card:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }

  .dashboard-section {
    padding: 72px 0 82px;
  }

  .updates-section {
    padding: 72px 0 82px;
  }

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

  .updates-list article,
  .updates-list article + article {
    min-height: 0;
    padding: 26px 0;
    border-left: 0;
  }

  .updates-list article + article {
    border-top: 1px solid var(--line-light);
  }

  .updates-list h3 {
    margin-top: 24px;
  }
}

@media (max-width: 600px) {
  .portal-grid {
    grid-template-columns: 1fr;
  }

  .portal-card,
  .portal-card:first-child,
  .portal-card:nth-child(2),
  .portal-card:nth-child(3) {
    min-height: 132px;
    padding: 18px 0;
    border-left: 0;
  }

  .portal-card:nth-child(even) {
    border-left: 0;
  }

  .portal-card + .portal-card {
    border-top: 1px solid var(--line);
  }

  .dashboard-figure {
    padding: 10px;
  }

  .dashboard-figure figcaption {
    font-size: 12px;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

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

/* Final homepage CTA alignment: public resources first, research second, same visual weight. */
.hero-actions {
  gap: 20px;
}

.hero-actions .button {
  min-width: 198px;
  justify-content: space-between;
  min-height: 54px;
  padding: 0 28px 0 30px;
  font-size: 18px;
}

.hero-actions .button:hover {
  gap: 32px;
}

/* Keep the footer address calm and closer to the email scale. */
.footer-location > strong {
  font-size: clamp(17px, 1.35vw, 22px);
  letter-spacing: 0.035em;
}

@media (max-width: 760px) {
  .hero-actions {
    gap: 14px;
  }

  .hero-actions .button {
    min-width: 0;
    width: 100%;
    font-size: 16px;
  }
}

/* Final typography QA: remove Songti/mono-looking fallbacks from public text. */
:root {
  --hesl-sans: "Microsoft YaHei", "SimHei", "PingFang SC", "Hiragino Sans GB",
    "Noto Sans CJK SC", "Source Han Sans SC", Arial, Helvetica, sans-serif;
}

body,
button,
input,
textarea,
select,
.desktop-nav,
.mobile-menu,
.hero,
.scope-topline,
.research-mode-switch button,
.field-center,
.field-detail,
.research-flow,
.research-loop,
.research,
.portal,
.updates-section,
.dashboard-section,
.footer,
.footer a,
.footer-location,
.footer-location > span,
.footer-location > strong {
  font-family: var(--hesl-sans) !important;
}

/* Keep English text sans-serif too; avoid cramped bold descenders in the EN headline. */
.lang-en body,
.lang-en .hero,
.lang-en .section-heading,
.lang-en .research,
.lang-en .footer {
  font-family: Inter, "Segoe UI", Arial, Helvetica, sans-serif !important;
}

.lang-en .interdisciplinary h2,
.lang-en .inter-title,
.lang-en [data-i18n="inter.titlePrefix"],
.lang-en [data-i18n="inter.titleStrong"] {
  line-height: 1.18 !important;
  letter-spacing: -0.045em;
}

/* The four-step research logic row should read like clean HeiTi, not monospace. */
.research-flow > p,
.research-flow strong,
.research-flow small,
.research-loop > p,
.research-loop li span,
.research-loop li strong,
.research-loop li small {
  font-family: var(--hesl-sans) !important;
}

/* Dark visual module tabs/labels: force HeiTi and improve legibility. */
.research-mode-switch button,
.field-center,
.field-center span,
.field-detail,
.field-detail * {
  font-family: var(--hesl-sans) !important;
}

/* Footer bottom/right text: keep it readable and unified. */
.hero-foot,
.hero-foot p,
.footer-meta,
.footer-meta *,
.footer a[href="#top"],
.footer-location > span,
.footer-location > strong {
  font-family: var(--hesl-sans) !important;
}

.footer a[href="#top"] {
  font-size: clamp(15px, 1vw, 18px);
  letter-spacing: 0.03em;
}

/* Typography lock: the page should not fall back to Songti/serif/monospace in public text. */
body,
body :where(a, p, span, strong, small, em, i, b, h1, h2, h3, h4, h5, h6, li, button, label, th, td, figcaption) {
  font-family: var(--hesl-sans) !important;
}

.site-footer,
.site-footer :where(a, p, span, strong, small, em, i, b) {
  font-family: var(--hesl-sans) !important;
}

.section-index,
.hero-foot,
.hero-foot *,
.research-en,
.research-case span,
.discipline-map article > span,
.discipline-map article > p,
.portal-kicker,
.dashboard-kicker {
  font-family: var(--hesl-sans) !important;
}

/* English version: give descenders/ascenders enough vertical air, especially q/d/g/p. */
.lang-en .manifesto-lead {
  line-height: 1.28 !important;
  letter-spacing: -0.035em !important;
}

.lang-en .manifesto-lead strong,
.lang-en .manifesto-lead span {
  line-height: inherit !important;
}

.lang-en body,
.lang-en body :where(a, p, span, strong, small, em, i, b, h1, h2, h3, h4, h5, h6, li, button, label, th, td, figcaption) {
  font-family: "Segoe UI", Arial, Helvetica, sans-serif !important;
}

body.lang-en,
body.lang-en :where(a, p, span, strong, small, em, i, b, h1, h2, h3, h4, h5, h6, li, button, label, th, td, figcaption) {
  font-family: "Segoe UI", Arial, Helvetica, sans-serif !important;
}

/* Five resource cards: align arrows, labels, titles and descriptions on one visual baseline. */
.portal-grid {
  align-items: stretch;
}

.portal-card,
.portal-card:first-child,
.portal-card:nth-child(2),
.portal-card:nth-child(3) {
  display: grid !important;
  grid-template-rows: 24px 1fr;
  min-height: 196px;
  padding: 28px 34px 30px !important;
}

.portal-card > div:last-child {
  display: grid;
  grid-template-rows: 28px 62px 58px;
  align-content: end;
}

.portal-card div:last-child > p {
  align-self: end;
  margin: 0 !important;
  line-height: 1.2;
}

.portal-card h3 {
  align-self: center;
  margin: 0 !important;
  line-height: 1.04;
}

.portal-card div:last-child > span {
  align-self: start;
  min-height: 3.2em;
  line-height: 1.55;
}

.portal-card-top {
  align-self: start;
}

/* Footer labels: keep "地址" and "学术合作与咨询" visually identical. */
.footer-location > span,
.footer-contact > span {
  font-family: var(--hesl-sans) !important;
  font-size: clamp(16px, 1.02vw, 20px) !important;
  font-weight: 400 !important;
  line-height: 1.35 !important;
  letter-spacing: 0.04em !important;
  color: rgba(249, 255, 245, 0.42) !important;
}

/* 2026-09-29 local draft: requested bilingual type scale. */
.discipline-map h3,
.research-item h3,
.portal-card h3 {
  font-size: clamp(31px, 2.15vw, 38px) !important;
}

.portal-heading h2,
.manifesto-lead,
.research .section-heading h2,
.join h2 {
  font-size: clamp(32px, 2.8vw, 44px) !important;
  letter-spacing: 0 !important;
}

.discipline-map small,
.portal-card div:last-child > span,
.manifesto-detail,
.research .section-heading > p,
.research-body > p:not(.research-en),
.join-kicker,
.hero-intro,
.scope-readout span,
.research-mode-switch button,
.flow-equation,
.field-center strong,
.operation-objectives span,
.operation-objectives b,
.reactor-detail > span {
  font-size: 14.5px !important;
}

/* Keep the English micro-labels inside the three animated modules compact. */
.system-node span {
  font-size: 9px !important;
}

.system-node small {
  font-size: 11.5px !important;
}

.field-center small,
.field-label,
.operation-objectives small {
  font-size: 10px !important;
}

/* Match the visual-module summary values to the public-library button. */
.scope-readout strong {
  font-size: 18px !important;
}

/* Stack the section label above the manifesto, like the adjacent page sections. */
.manifesto-grid {
  grid-template-columns: 1fr !important;
  gap: 28px 40px;
}

html[lang="zh-CN"] .manifesto-lead strong {
  display: block;
  white-space: nowrap;
}

/* Keep the research summary on one line when desktop space allows it. */
.research .section-heading {
  grid-template-columns: minmax(0, 1fr) max-content;
  gap: 40px;
}

.research .section-heading > p {
  max-width: none;
  white-space: nowrap;
}

/* Return resource-card arrows to the top-right and center each text group vertically. */
.portal-card,
.portal-card:first-child,
.portal-card:nth-child(2),
.portal-card:nth-child(3) {
  position: relative;
  display: flex !important;
  justify-content: center;
}

.portal-card-top {
  position: absolute;
  top: 24px;
  right: 28px;
}

.portal-card > div:last-child {
  display: flex;
  justify-content: center;
  flex-direction: column;
  min-height: 100%;
  padding-top: 12px;
}

.portal-card div:last-child > p,
.portal-card h3,
.portal-card div:last-child > span {
  align-self: auto;
  min-height: 0;
}

/* JOIN supporting copy follows the action-button scale. */
.join-kicker,
.join-side p {
  font-size: 16px !important;
}

/* Header actions use the same scale as the primary navigation. */
.desktop-nav,
.header-link,
.language-switch button {
  font-size: 18px !important;
}

/* Keep the email label and address close to the JOIN US label scale. */
.footer-contact a small,
.footer-contact a strong {
  font-size: 15px !important;
}

@media (max-width: 1180px) {
  .desktop-nav,
  .header-link,
  .language-switch button {
    font-size: 16px !important;
  }
}

@media (max-width: 900px) {
  .research .section-heading {
    grid-template-columns: 1fr;
  }

  .research .section-heading > p {
    white-space: normal;
  }

  .portal-card-top {
    right: 22px;
  }

  .footer-contact a small,
  .footer-contact a strong {
    font-size: 13px !important;
  }
}

/* 2026-09-29 local draft, round 5: tighten section rhythm and card spacing. */
.manifesto {
  padding-top: 40px;
  padding-bottom: 56px;
}

.manifesto-grid {
  gap: 18px 40px;
}

.portal-card h3 {
  margin: 0 0 10px !important;
}

.research-body {
  gap: 0;
}

.research-item {
  min-height: 380px;
}

.research-item h3 {
  margin: 0 0 14px;
}

.research-case {
  margin-top: 22px;
}

.tag-list {
  margin: 12px 0 0;
  padding-top: 0;
}

.research-body > p:not(.research-en),
.research-case strong,
.tag-list li {
  font-size: 14.5px !important;
  line-height: 1.55;
}

/* Center the footer contact label over the email row. */
.footer-contact > span {
  align-self: stretch;
  text-align: center;
}

/* Center the JOIN proposition and remove the oversized empty lower area. */
.join {
  min-height: 0;
  padding-top: 64px;
  padding-bottom: 64px;
}

.join-inner {
  align-items: center;
}

.join-inner > div:nth-child(2) {
  justify-self: stretch;
  text-align: center;
}

.join-side {
  padding-bottom: 0;
}

@media (max-width: 900px) {
  .manifesto {
    padding-top: 38px;
    padding-bottom: 48px;
  }

  .manifesto-grid {
    gap: 18px;
  }

  .join {
    padding-top: 56px;
    padding-bottom: 56px;
  }

  .join-inner {
    grid-template-columns: 1fr;
    gap: 28px;
    text-align: center;
  }

  .join .section-index,
  .join-inner > div:nth-child(2),
  .join-side {
    justify-self: center;
  }

  .join-side {
    align-items: center;
    max-width: 340px;
    text-align: center;
  }

  .join-side p {
    margin-bottom: 24px;
  }
}

/* 2026-09-29 local draft, round 6: alignment and hierarchy refinements. */
.manifesto {
  padding-top: 28px;
}

/* Match the English-label-to-title rhythm used by the discipline cards. */
.portal-card div:last-child > p {
  margin-bottom: 6px !important;
}

/* Use the same horizontal content inset across the three card systems. */
.portal-card,
.portal-card:first-child,
.portal-card:nth-child(2),
.portal-card:nth-child(3),
.research-item,
.discipline-map article,
.discipline-map article + article {
  padding-right: 24px !important;
  padding-left: 24px !important;
}

.portal-card-top {
  right: 24px;
}

/* Keep the JOIN copy left-aligned as a group, while centering the group itself. */
.join-inner > div:nth-child(2) {
  width: fit-content;
  max-width: 100%;
  justify-self: center;
  text-align: left;
}

/* Compact header actions follow the research-mode tab scale. */
.header-link,
.language-switch button {
  font-size: 14.5px !important;
}

/* Hero eyebrow, introduction and primary action share one scale. */
.hero-eyebrow,
.hero-intro,
.hero-actions .button {
  font-size: 18px !important;
}

@media (max-width: 1180px) {
  .header-link,
  .language-switch button {
    font-size: 14.5px !important;
  }
}

@media (max-width: 900px) {
  .manifesto {
    padding-top: 28px;
  }

  .join-inner > div:nth-child(2) {
    width: fit-content;
    justify-self: center;
    text-align: left;
  }

  .hero-eyebrow,
  .hero-intro,
  .hero-actions .button {
    font-size: 16px !important;
  }
}

@media (max-width: 600px) {
  .portal-card,
  .portal-card:first-child,
  .portal-card:nth-child(2),
  .portal-card:nth-child(3),
  .research-item,
  .discipline-map article,
  .discipline-map article + article {
    padding-right: 16px !important;
    padding-left: 16px !important;
  }

  .portal-card-top {
    right: 16px;
  }
}

@media (max-width: 600px) {
  .portal-card-top {
    top: 18px;
    right: 0;
  }

  .footer-contact a small,
  .footer-contact a strong {
    font-size: 13px !important;
  }
}

/* 2026-09-29 local draft, round 7: final visual alignment requested in review. */
.header-link,
.language-switch button {
  font-size: 14.5px !important;
  font-weight: 750;
  line-height: 1;
}

.hero-intro,
.hero-actions .button {
  font-size: 18px !important;
}

.manifesto {
  padding-top: 16px;
}

@media (max-width: 900px) {
  .hero-intro,
  .hero-actions .button {
    font-size: 16px !important;
  }

  .manifesto {
    padding-top: 16px;
  }
}

/* 2026-09-29 local draft, round 8: match perceived type size and center card content. */
.header-link,
.language-switch button {
  font-size: 14.5px !important;
  font-weight: 750;
  line-height: 1;
}

.language-switch button {
  min-width: 46px;
  height: 47px;
  padding-right: 12px;
  padding-left: 12px;
}

.hero-intro,
.hero-actions .button {
  font-size: 18px !important;
  font-weight: 600;
}

/* Pull the complete interdisciplinary heading row closer to the section above. */
.portal {
  padding-bottom: 40px;
}

.manifesto {
  padding-top: 12px;
}

/* Center each research-card text group vertically inside the shared card height. */
.research-item {
  justify-content: center;
}

.research-body {
  flex: 0 1 auto;
}

.tag-list {
  margin: 14px 0 0;
  padding-top: 0;
}

@media (max-width: 900px) {
  .hero-intro,
  .hero-actions .button {
    font-size: 16px !important;
  }

  .portal {
    padding-bottom: 40px;
  }

  .manifesto {
    padding-top: 12px;
  }

  .mobile-language-switch button {
    min-width: 0;
    height: 30px;
    padding-right: 10px;
    padding-left: 10px;
  }
}

/* 2026-09-29 local draft, round 9: align the flow label with CORE / POWER SYSTEMS. */
.research-flow > p {
  padding-left: 24px;
}

@media (max-width: 600px) {
  .research-flow > p {
    padding-left: 16px;
  }
}

/* 2026-09-30 local draft, round 10: align JOIN copy tops and lift manifesto further. */
@media (min-width: 901px) {
  .join-inner > div:nth-child(2),
  .join-side {
    align-self: start;
  }
}

.portal {
  padding-bottom: 24px;
}

.manifesto {
  padding-top: 8px;
}

@media (max-width: 900px) {
  .portal {
    padding-bottom: 32px;
  }

  .manifesto {
    padding-top: 8px;
  }
}

/* 2026-09-30 local draft, round 11: equal header controls and relax manifesto spacing. */
@media (min-width: 901px) {
  .header-link,
  .language-switch {
    box-sizing: border-box;
    height: 54px;
  }

  .header-link {
    padding-top: 0;
    padding-bottom: 0;
  }

  .language-switch button {
    height: 100%;
  }
}

.hero-intro {
  font-weight: 400;
}

.manifesto {
  padding-top: 20px;
  padding-bottom: 64px;
}

@media (max-width: 900px) {
  .manifesto {
    padding-top: 16px;
    padding-bottom: 56px;
  }
}

/* 2026-09-30 local draft, round 12: add a little more breathing room. */
.manifesto {
  padding-top: 28px;
  padding-bottom: 72px;
}

@media (max-width: 900px) {
  .manifesto {
    padding-top: 20px;
    padding-bottom: 64px;
  }
}

/* News navigation lands on the dedicated homepage reporting section. */
#news {
  scroll-margin-top: 118px;
}

/* News is a homepage section, while recent updates remain a separate document entry. */
.news-section {
  padding: 44px 0 52px;
  background: var(--paper);
}

.news-heading {
  grid-template-columns: 1fr;
  margin-bottom: 28px;
}

.news-heading h2 {
  font-size: clamp(32px, 2.8vw, 44px) !important;
  letter-spacing: 0 !important;
}

.news-report-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-rows: repeat(4, minmax(56px, auto));
  grid-auto-flow: column;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
}

.news-report-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto 14px;
  align-items: center;
  gap: 12px;
  min-height: 56px;
  padding: 9px 12px 9px 16px;
  color: var(--ink);
  border-top: 1px solid var(--line);
  transition:
    color 260ms ease,
    background 260ms ease;
}

.news-report-card:first-child,
.news-report-card:nth-child(5) {
  border-top: 0;
}

.news-report-card:nth-child(-n + 4) {
  border-right: 1px solid var(--line);
}

.news-report-card::before {
  position: absolute;
  top: -1px;
  left: 0;
  width: 34px;
  height: 2px;
  background: var(--cyan);
  content: "";
  transition: width 320ms var(--ease-out);
}

.news-report-card:nth-child(even)::before {
  background: var(--acid);
}

.news-report-card:hover,
.news-report-card:focus-visible {
  color: #315f54;
  background: rgba(99, 230, 255, 0.035);
}

.news-report-card:hover::before,
.news-report-card:focus-visible::before {
  width: 100%;
}

.news-report-card time {
  color: #758179;
  font-size: 10px;
  letter-spacing: 0.08em;
}

.news-report-card time {
  grid-column: 2;
  text-align: right;
  white-space: nowrap;
}

.news-report-card h3 {
  grid-column: 1;
  margin: 0;
  font-size: 14.5px;
  font-weight: 560;
  letter-spacing: 0;
  line-height: 1.45;
}

.news-report-arrow {
  grid-column: 3;
  align-self: center;
  color: #597169;
  font-size: 13px;
  transition: transform 260ms var(--ease-out);
}

.news-report-card:hover .news-report-arrow,
.news-report-card:focus-visible .news-report-arrow {
  transform: rotate(45deg);
}

@media (max-width: 900px) {
  .news-section {
    padding-top: 42px;
    padding-bottom: 48px;
  }

  .news-report-list {
    grid-template-columns: 1fr;
    grid-template-rows: none;
    grid-auto-flow: row;
  }

  .news-report-card:nth-child(5) {
    border-top: 1px solid var(--line);
  }

  .news-report-card:first-child {
    border-top: 0;
  }

  .news-report-card:nth-child(-n + 4) {
    border-right: 0;
  }
}

/* Keep adjacent section openings compact; let research sit slightly lower for visual balance. */
@media (min-width: 901px) {
  .news-section,
  .manifesto,
  .research {
    padding-top: 28px;
  }

  .research {
    padding-top: 40px;
  }

  .portal,
  .news-section,
  .manifesto {
    padding-bottom: 20px;
  }
}

@media (max-width: 900px) {
  .news-section,
  .manifesto,
  .research {
    padding-top: 28px;
  }

  .research {
    padding-top: 36px;
  }

  .portal,
  .news-section,
  .manifesto {
    padding-bottom: 24px;
  }
}

@media (max-width: 600px) {
  .news-section,
  .manifesto,
  .research {
    padding-top: 24px;
  }

  .research {
    padding-top: 30px;
  }

  .portal,
  .news-section,
  .manifesto {
    padding-bottom: 20px;
  }

  .news-heading {
    margin-bottom: 22px;
  }

  .news-report-card,
  .news-report-card:nth-child(even) {
    min-height: 68px;
    padding: 10px 30px 10px 16px;
  }

  .news-report-card h3 {
    font-size: 14.5px;
    line-height: 1.5;
  }

  .news-report-arrow {
    position: absolute;
    right: 12px;
    bottom: 16px;
  }
}

/* Keep all three research modes on one shared visual center; typography is unchanged. */
.reactor-stage {
  background:
    radial-gradient(circle at 50% 52%, rgba(201, 255, 103, 0.11), transparent 17%),
    radial-gradient(circle at 50% 52%, rgba(99, 230, 255, 0.08), transparent 40%),
    linear-gradient(180deg, rgba(2, 15, 14, 0.12), rgba(2, 15, 14, 0.72));
}

.reactor-stage[data-mode="resilience"] {
  background:
    radial-gradient(circle at 80% 52%, rgba(255, 122, 104, 0.16), transparent 25%),
    radial-gradient(circle at 40% 54%, rgba(99, 230, 255, 0.1), transparent 38%),
    linear-gradient(180deg, rgba(2, 15, 14, 0.12), rgba(2, 15, 14, 0.72));
}

.reactor-stage[data-mode="operation"] {
  background:
    linear-gradient(180deg, transparent 51%, rgba(99, 230, 255, 0.08) 54%, transparent 57%),
    radial-gradient(ellipse at 50% 54%, rgba(201, 255, 103, 0.08), transparent 42%),
    linear-gradient(180deg, rgba(2, 15, 14, 0.12), rgba(2, 15, 14, 0.72));
}

.flow-equation {
  top: 66px;
}

.field-contours,
.field-center {
  top: 57%;
}

.field-label-source,
.field-label-output {
  top: 56%;
}

.field-label-state {
  top: 25%;
}

.objective-security {
  top: 28%;
}

.objective-economy,
.objective-carbon {
  top: 68%;
}

@media (max-width: 600px) {
  #news {
    scroll-margin-top: 86px;
  }

  .flow-equation {
    top: 55px;
  }
}

/* 2026-09-30 responsive scale pass: keep layouts stable under OS/browser scaling. */
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

.hero-copy,
.energy-scope,
.portal-card,
.discipline-map article,
.research-item,
.join-inner > * {
  min-width: 0;
}

@media (min-width: 901px) and (max-width: 1180px) {
  .hero {
    min-height: 1450px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    align-content: start;
    gap: 64px;
    min-height: 0;
    padding-top: 150px;
    padding-bottom: 130px;
  }

  .hero-copy {
    max-width: 760px;
  }

  .energy-scope {
    width: min(100%, 680px);
    max-width: 680px;
    justify-self: center;
  }
}

/* 2026-10-12 bilingual QA: keep resources visible and prevent English orphan lines. */
.lang-en .manifesto-lead strong {
  display: block;
}

.lang-en .discipline-map h3 {
  font-size: clamp(24px, 1.85vw, 32px) !important;
  line-height: 1.16;
  letter-spacing: -0.025em;
}

.lang-en .discipline-map small {
  font-size: 13px !important;
  line-height: 1.65;
}

.lang-en .research-flow strong {
  font-size: 15.5px !important;
  line-height: 1.35;
}

.lang-en .research-flow small {
  font-size: 12.5px !important;
  line-height: 1.55;
}

@media (min-width: 901px) and (max-width: 1180px) {
  .site-header,
  .site-header.is-scrolled {
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: clamp(14px, 2vw, 24px);
    padding-right: 18px;
    padding-left: 18px;
  }

  .desktop-nav {
    justify-self: center;
    gap: clamp(14px, 1.8vw, 24px) !important;
    font-size: 14px !important;
    letter-spacing: 0.08em;
  }

  .desktop-nav a {
    min-width: auto;
    padding-right: 4px;
    padding-left: 4px;
  }

  .header-actions {
    gap: 6px;
  }

  .header-link {
    min-width: auto;
    padding-right: 12px;
    padding-left: 12px;
    font-size: 13px !important;
  }

  .language-switch button {
    min-width: 36px;
    padding-right: 8px;
    padding-left: 8px;
    font-size: 13px !important;
  }

  .lang-en .discipline-map h3 {
    font-size: clamp(22px, 2.35vw, 27px) !important;
  }

  .lang-en .manifesto-detail {
    max-width: 720px;
    font-size: 14px !important;
  }

  .research .section-heading {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .research .section-heading > p {
    max-width: 760px;
    justify-self: start;
    white-space: normal;
  }

  .lang-en .research .section-heading h2 {
    max-width: 680px;
  }

  .lang-en .desktop-nav {
    gap: clamp(20px, 2.2vw, 42px) !important;
    font-size: 16px !important;
    letter-spacing: 0.08em;
  }
}

/* 2026-10-12 header hotfix: keep both language menus horizontal after scrolling. */
@media (min-width: 901px) {
  .site-header.is-scrolled {
    width: min(1440px, calc(100vw - 28px));
  }

  .desktop-nav {
    flex-wrap: nowrap;
    gap: clamp(24px, 3vw, 52px) !important;
  }

  .desktop-nav a,
  .header-actions,
  .header-link,
  .brand {
    white-space: nowrap;
  }

  .desktop-nav a {
    min-width: auto;
    padding-right: 8px;
    padding-left: 8px;
  }
}

@media (min-width: 901px) and (max-width: 1180px) {
  .desktop-nav {
    gap: clamp(14px, 1.8vw, 24px) !important;
  }
}

@media (min-width: 901px) and (max-width: 1360px) {
  .research .section-heading {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .research .section-heading > p {
    max-width: 820px;
    justify-self: start;
    white-space: normal;
  }
}

@media (min-width: 1181px) {
  .research-item:nth-child(2) .tag-list {
    display: grid;
    grid-template-columns: max-content max-content;
    justify-content: start;
    align-items: center;
  }
}

/* 2026-10-12 bilingual card-layout correction. */
@media (min-width: 901px) {
  .research .section-heading {
    grid-template-columns: minmax(360px, 0.8fr) minmax(0, 1.2fr);
    align-items: end;
    gap: 32px;
  }

  .research .section-heading > p {
    width: 100%;
    max-width: 720px;
    justify-self: end;
    white-space: normal;
  }

  .tag-list li,
  .research-item:nth-child(2) .tag-list li {
    padding: 7px 8px;
    font-size: 14.5px !important;
    line-height: 1.4;
  }

  html[lang="zh-CN"] .research-item:nth-child(2) .tag-list {
    display: flex;
    flex-wrap: nowrap;
    gap: 5px;
  }

  .lang-en .research-item:nth-child(2) .tag-list {
    display: grid;
    grid-template-columns: max-content max-content;
    justify-content: start;
    gap: 8px;
  }
}

@media (min-width: 901px) and (max-width: 1180px) {
  .tag-list li,
  .research-item:nth-child(2) .tag-list li {
    padding: 6px 7px;
    font-size: 12.5px !important;
  }
}

/* 2026-10-12 final spacing pass: airier bilingual navigation and four inline middle-track tags. */
@media (min-width: 1181px) {
  .desktop-nav {
    gap: clamp(56px, 4.2vw, 84px) !important;
  }

  .lang-en .desktop-nav {
    gap: clamp(46px, 3.2vw, 64px) !important;
  }
}

@media (min-width: 1600px) {
  .research-item:nth-child(2) .tag-list {
    display: flex;
    flex-wrap: nowrap;
    gap: 5px;
  }

  .research-item:nth-child(2) .tag-list li {
    flex: 0 1 auto;
    padding: 6px 8px;
    font-size: 14.5px !important;
    line-height: 1.4;
    white-space: nowrap;
  }
}

/* 2026-10-12 direct layout correction for the actual desktop viewport. */
@media (min-width: 901px) {
  .desktop-nav {
    width: min(760px, 100%);
    justify-content: space-between;
    justify-self: center;
    gap: 0 !important;
  }

  .research-item:nth-child(2) .tag-list {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    gap: clamp(2px, 0.3vw, 5px);
  }

  .research-item:nth-child(2) .tag-list li {
    flex: 0 1 auto;
    padding: 6px clamp(4px, 0.45vw, 8px);
    font-size: clamp(10px, 0.9vw, 14.5px) !important;
    line-height: 1.4;
    white-space: nowrap;
  }

  .research-flow {
    grid-template-columns: 0.7fr 3.3fr;
    gap: 24px;
  }

  .research-flow li {
    padding-right: 12px;
  }

  .research-flow li + li {
    padding-left: 16px;
  }

  .research-flow li:not(:last-child)::after {
    right: 2px;
  }

  .lang-en .research-flow small {
    font-size: 12px !important;
  }
}

@media (min-width: 901px) and (max-width: 1180px) {
  .desktop-nav {
    width: min(560px, 100%);
  }
}

@media (min-width: 1181px) {
  .site-header,
  .site-header.is-scrolled {
    grid-template-columns: auto minmax(520px, 760px) auto;
    gap: 24px;
  }

  .desktop-nav {
    width: 100%;
  }

  .research .section-heading {
    grid-template-columns: minmax(440px, 0.85fr) minmax(0, 1.15fr);
  }

  .research .section-heading > p {
    white-space: normal;
  }
}

/* 2026-10-12 definitive bilingual research-card override. Keep this block last. */
@media (min-width: 901px) {
  html[lang="zh-CN"] .research .section-heading > p {
    width: min(100%, 650px);
    max-width: 650px;
    justify-self: end;
  }

  .lang-en .research .section-heading > p {
    width: min(100%, 720px);
    max-width: 720px;
    justify-self: end;
  }

  .research-list .research-item .tag-list li {
    width: max-content;
    padding: 6px 7px;
    font-size: 12.5px !important;
    line-height: 1.4;
  }

  html[lang="zh-CN"] .research-list .research-item:nth-child(2) .tag-list {
    display: flex;
    flex-wrap: nowrap;
    gap: 5px;
  }

  .lang-en .research-list .research-item:nth-child(2) .tag-list {
    display: grid;
    grid-template-columns: max-content max-content;
    justify-content: start;
    align-items: center;
    gap: 8px;
  }

  .lang-en .research-list .research-item:nth-child(2) .tag-list li {
    width: max-content;
    justify-self: start;
    flex: none;
  }
}

@media (min-width: 1181px) {
  .research-list .research-item .tag-list li {
    padding: 6px 7px;
    font-size: 13px !important;
  }
}

@media (min-width: 1600px) {
  .research-list .research-item .tag-list li {
    padding: 7px 8px;
    font-size: 14.5px !important;
  }
}

@media (min-width: 901px) {
  .research .section-heading {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) !important;
    gap: 40px;
  }

  .research .section-heading > div {
    grid-column: 1;
  }

  .research .section-heading > p {
    grid-column: 2;
    justify-self: end !important;
    margin-left: auto;
    width: fit-content !important;
    max-width: 100% !important;
  }

  html[lang="zh-CN"] .research .section-heading > p {
    width: fit-content !important;
    max-width: 100% !important;
  }

  .lang-en .research .section-heading > p {
    width: fit-content !important;
    max-width: 100% !important;
  }

  .tag-list .tag-break {
    display: none !important;
  }

  .lang-en .research-list .research-item .tag-list {
    display: flex !important;
    flex-wrap: wrap;
    justify-content: flex-start;
    align-items: center;
    column-gap: 8px;
    row-gap: 8px;
  }

  .lang-en .research-list .research-item .tag-list li:not(.tag-break) {
    width: max-content;
    flex: 0 0 auto;
  }

  .lang-en .research-list .research-item .tag-list .tag-break {
    display: block !important;
    flex: 0 0 100% !important;
    width: 100% !important;
    height: 0;
    margin: -4px 0;
    padding: 0 !important;
    border: 0 !important;
  }
}

/* 2026-10-12: align resource-card rows and keep key English discipline copy on one line. */
@media (min-width: 901px) {
  .portal-card,
  .portal-card:first-child,
  .portal-card:nth-child(2),
  .portal-card:nth-child(3) {
    justify-content: flex-start !important;
  }

  .portal-card > div:last-child {
    display: grid !important;
    grid-template-rows: 28px 80px auto;
    align-content: start;
    justify-content: stretch !important;
    min-height: 0;
    padding-top: 12px;
  }

  .portal-card div:last-child > p,
  .portal-card h3,
  .portal-card div:last-child > span {
    align-self: start;
    margin: 0 !important;
  }

  .lang-en .discipline-map article {
    padding-right: 16px !important;
    padding-left: 16px !important;
  }

  .lang-en .discipline-map h3 {
    font-size: clamp(20px, 1.55vw, 24px) !important;
    line-height: 1.18;
    white-space: nowrap;
  }

  .lang-en .discipline-map small {
    font-size: 12px !important;
    line-height: 1.55;
  }

  .lang-en .discipline-map article:nth-child(3) small {
    white-space: nowrap;
  }
}