:root {
  --ink: #17314a;
  --muted: #5d7287;
  --paper: #f8fbff;
  --panel: #ffffff;
  --line: #d9e7f2;
  --cyan: #39bce8;
  --blue: #3478f6;
  --mint: #36c99a;
  --amber: #f5b84b;
  --coral: #f36f72;
  --violet: #8e78ff;
  --nav: rgba(255, 255, 255, 0.82);
  --shadow: 0 18px 50px rgba(39, 89, 130, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 16% 10%, rgba(57, 188, 232, 0.18), transparent 28%),
    radial-gradient(circle at 90% 8%, rgba(54, 201, 154, 0.16), transparent 26%),
    linear-gradient(180deg, #f4fbff 0%, #fbfdff 42%, #eef8f7 100%);
  min-height: 100vh;
  letter-spacing: 0;
}

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

button,
input {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 66px;
  padding: 12px clamp(18px, 4vw, 54px);
  background: var(--nav);
  border-bottom: 1px solid rgba(157, 190, 214, 0.58);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  white-space: nowrap;
}

.brand-mark {
  width: 28px;
  height: 28px;
  border: 2px solid var(--blue);
  border-radius: 50%;
  position: relative;
  background: conic-gradient(from 20deg, var(--cyan), transparent 28%, var(--mint), transparent 58%, var(--blue));
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 7px;
  border: 2px solid #fff;
  border-radius: 50%;
  background: var(--panel);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.nav-links a {
  padding: 9px 12px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 14px;
  transition: background 160ms ease, color 160ms ease;
}

.nav-links a:hover,
.nav-links a.is-active {
  color: var(--ink);
  background: #e7f5ff;
}

.hero-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  align-items: center;
  gap: clamp(28px, 5vw, 76px);
  width: min(1180px, calc(100% - 36px));
  min-height: calc(100vh - 78px);
  margin: 0 auto;
  padding: 38px 0 56px;
}

.hero-scene {
  min-height: 560px;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(159, 200, 225, 0.7);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(52, 120, 246, 0.08) 1px, transparent 1px),
    linear-gradient(rgba(52, 120, 246, 0.08) 1px, transparent 1px),
    radial-gradient(circle at 50% 48%, rgba(57, 188, 232, 0.28), transparent 35%),
    linear-gradient(135deg, #ffffff 0%, #eaf8ff 56%, #f4fff9 100%);
  background-size: 44px 44px, 44px 44px, auto, auto;
  box-shadow: var(--shadow);
}

.generated-hero {
  display: grid;
  place-items: stretch;
}

.generated-hero img {
  width: 100%;
  height: 100%;
  min-height: 560px;
  object-fit: cover;
  display: block;
}

.generated-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.22)),
    radial-gradient(circle at 20% 16%, rgba(255, 255, 255, 0.72), transparent 20%);
  pointer-events: none;
}

.hero-orbit {
  position: absolute;
  width: 34%;
  aspect-ratio: 1;
  right: 7%;
  top: 9%;
  border-radius: 50%;
  border: 1px solid rgba(52, 120, 246, 0.28);
  box-shadow: 0 0 0 28px rgba(57, 188, 232, 0.08), 0 0 0 62px rgba(54, 201, 154, 0.06);
  animation: pulseLine 3.6s ease-in-out infinite;
}

.earth-grid {
  position: absolute;
  width: 310px;
  height: 310px;
  left: 50%;
  top: 48%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px solid rgba(52, 120, 246, 0.3);
  background:
    repeating-linear-gradient(90deg, transparent 0 30px, rgba(52, 120, 246, 0.16) 31px 32px),
    repeating-linear-gradient(0deg, transparent 0 30px, rgba(52, 120, 246, 0.14) 31px 32px);
  box-shadow: inset 0 0 54px rgba(57, 188, 232, 0.28), 0 0 80px rgba(54, 201, 154, 0.18);
}

.radar-sweep {
  position: absolute;
  width: 470px;
  height: 470px;
  left: 50%;
  top: 48%;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(57, 188, 232, 0.34);
  border-radius: 50%;
  background: conic-gradient(from 0deg, rgba(57, 188, 232, 0.32), rgba(57, 188, 232, 0.04) 28%, transparent 36%);
  animation: sweep 8s linear infinite;
}

.signal-path {
  position: absolute;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--mint), transparent);
  box-shadow: 0 0 16px rgba(57, 188, 232, 0.55);
  transform-origin: left center;
  animation: pulseLine 2.8s ease-in-out infinite;
}

.path-a {
  width: 70%;
  left: 9%;
  top: 28%;
  transform: rotate(14deg);
}

.path-b {
  width: 76%;
  left: 12%;
  top: 66%;
  transform: rotate(-9deg);
  animation-delay: 0.8s;
}

.path-c {
  width: 54%;
  left: 22%;
  top: 50%;
  transform: rotate(36deg);
  animation-delay: 1.4s;
}

.signal-node {
  position: absolute;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  border: 4px solid var(--cyan);
  box-shadow: 0 0 0 8px rgba(57, 188, 232, 0.12);
}

.node-a {
  left: 14%;
  top: 26%;
}

.node-b {
  right: 13%;
  top: 66%;
  border-color: var(--mint);
}

.node-c {
  left: 58%;
  top: 18%;
  border-color: var(--amber);
}

.spectrum-ribbon {
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: 36px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  z-index: 2;
}

.spectrum-ribbon span,
.band-segment {
  min-height: 38px;
  border-radius: 8px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.72);
}

.spectrum-ribbon span:nth-child(1),
.band-low {
  background: linear-gradient(135deg, #8be7b9, #36c99a);
}

.spectrum-ribbon span:nth-child(2),
.band-stable {
  background: linear-gradient(135deg, #8de4ff, #39bce8);
}

.spectrum-ribbon span:nth-child(3),
.band-data {
  background: linear-gradient(135deg, #b8adff, #8e78ff);
}

.spectrum-ribbon span:nth-child(4),
.band-radar {
  background: linear-gradient(135deg, #ffd982, #f5b84b);
}

.spectrum-ribbon span:nth-child(5),
.band-nav {
  background: linear-gradient(135deg, #ffb1ad, #f36f72);
}

.hero-copy {
  padding: 18px 0;
}

.eyebrow {
  margin: 0 0 10px;
  color: #287c95;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 20px;
  font-size: clamp(46px, 7vw, 86px);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(26px, 3vw, 42px);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 20px;
}

p {
  color: var(--muted);
  line-height: 1.72;
}

.hero-lede {
  max-width: 680px;
  font-size: 18px;
}

.hero-actions,
.mission-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

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

.button.primary {
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  box-shadow: 0 12px 28px rgba(52, 120, 246, 0.24);
}

.button.secondary {
  color: var(--ink);
  border-color: #b7d6ea;
  background: #fff;
}

.button.text-button {
  color: var(--blue);
  background: #edf7ff;
}

.section,
.page-shell {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
}

.section {
  padding: 56px 0;
}

.page-shell {
  padding: 34px 0 68px;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}

.showcase-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  padding: 34px;
  border: 1px solid rgba(182, 211, 231, 0.76);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.92), rgba(235, 250, 255, 0.94)),
    radial-gradient(circle at 92% 12%, rgba(245, 184, 75, 0.18), transparent 24%);
  box-shadow: var(--shadow);
}

.showcase-copy p:last-child {
  margin-bottom: 0;
}

.showcase-stats {
  display: grid;
  grid-template-columns: repeat(3, 120px);
  gap: 10px;
}

.showcase-stats span {
  display: grid;
  gap: 4px;
  min-height: 96px;
  place-items: center;
  text-align: center;
  padding: 14px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--muted);
}

.showcase-stats strong {
  color: var(--blue);
  font-family: Consolas, monospace;
  font-size: 34px;
}

.feature-grid {
  display: grid;
  gap: 18px;
}

.feature-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.info-card,
.task-pool,
.assignment-board,
.status-panel,
.mission-bar,
.page-hero,
.report-hero,
.safety-note,
.experiment-card {
  border: 1px solid rgba(182, 211, 231, 0.76);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow);
}

.info-card {
  padding: 24px;
}

.info-card p:last-child {
  margin-bottom: 0;
}

.card-icon {
  display: block;
  width: 48px;
  height: 48px;
  margin-bottom: 18px;
  border-radius: 8px;
  background: #eaf7ff;
  position: relative;
}

.card-icon::before,
.card-icon::after {
  content: "";
  position: absolute;
}

.road-icon::before {
  inset: 12px 21px;
  border-left: 2px dashed var(--blue);
}

.road-icon::after {
  left: 9px;
  right: 9px;
  top: 18px;
  height: 12px;
  border-top: 3px solid var(--cyan);
  border-bottom: 3px solid var(--mint);
}

.order-icon::before {
  inset: 11px;
  border: 3px solid var(--cyan);
  border-radius: 50%;
}

.order-icon::after {
  width: 22px;
  height: 3px;
  left: 13px;
  top: 23px;
  background: var(--blue);
  transform: rotate(-35deg);
}

.shield-icon::before {
  width: 24px;
  height: 28px;
  left: 12px;
  top: 10px;
  background: linear-gradient(135deg, var(--mint), var(--blue));
  clip-path: polygon(50% 0, 92% 18%, 82% 78%, 50% 100%, 18% 78%, 8% 18%);
}

.timeline-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.timeline-step {
  display: grid;
  gap: 9px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  transition: transform 160ms ease, border-color 160ms ease;
}

.timeline-step:hover {
  transform: translateY(-4px);
  border-color: var(--cyan);
}

.timeline-step span {
  color: var(--cyan);
  font-weight: 900;
  font-family: Consolas, monospace;
}

.timeline-step small {
  color: var(--muted);
  line-height: 1.55;
}

.safety-note,
.experiment-card,
.mission-bar,
.report-hero {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 28px;
}

.page-hero {
  padding: 34px;
  margin-bottom: 30px;
}

.page-hero.compact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 36%);
  align-items: center;
  gap: 26px;
  overflow: hidden;
}

.page-hero.compact h1 {
  font-size: clamp(38px, 5vw, 64px);
  margin-bottom: 14px;
}

.page-hero-image,
.mission-visual,
.report-visual {
  width: 100%;
  border-radius: 8px;
  border: 1px solid rgba(182, 211, 231, 0.72);
  object-fit: cover;
  box-shadow: 0 14px 34px rgba(39, 89, 130, 0.12);
}

.page-hero-image {
  aspect-ratio: 3 / 2;
}

.mission-bar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 28%) auto;
}

.mission-visual {
  aspect-ratio: 3 / 2;
  max-height: 170px;
}

.mission-bar h1 {
  font-size: clamp(42px, 5.4vw, 74px);
}

.spectrum-axis {
  display: grid;
  grid-template-columns: repeat(5, minmax(130px, 1fr));
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.band-button {
  min-height: 120px;
  border: 0;
  border-radius: 8px;
  padding: 16px;
  color: #0e2741;
  text-align: left;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.72);
}

.band-button::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 12px;
  height: 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.46);
}

.band-button strong,
.band-button small {
  position: relative;
  z-index: 1;
  display: block;
}

.band-button strong {
  font-size: 18px;
  margin-bottom: 8px;
}

.band-button small {
  line-height: 1.5;
}

.band-button.is-selected {
  outline: 3px solid rgba(52, 120, 246, 0.36);
}

.two-column {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.fact-list,
.metric-list {
  display: grid;
  gap: 12px;
  margin: 0;
}

.fact-list div,
.metric-list div {
  display: grid;
  gap: 5px;
  padding: 12px;
  border-radius: 8px;
  background: #f2f9ff;
}

dt {
  color: var(--muted);
  font-size: 13px;
}

dd {
  margin: 0;
  font-weight: 800;
}

.wave-window {
  height: 210px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(52, 120, 246, 0.08) 1px, transparent 1px),
    linear-gradient(rgba(52, 120, 246, 0.08) 1px, transparent 1px),
    #f8fcff;
  background-size: 30px 30px;
  position: relative;
  overflow: hidden;
  margin-bottom: 20px;
}

.wave-line {
  position: absolute;
  inset: 30px 18px;
  background:
    radial-gradient(circle at 12% 50%, rgba(57, 188, 232, 0.34) 0 4px, transparent 5px),
    repeating-radial-gradient(circle at 10% 50%, transparent 0 26px, rgba(57, 188, 232, 0.55) 27px 29px);
  animation: waveMove 2.8s linear infinite;
}

.wave-dots {
  position: absolute;
  inset: auto 28px 36px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--mint), var(--cyan), var(--violet), var(--amber));
}

.range-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  font-weight: 800;
}

.range-input {
  width: 100%;
  accent-color: var(--blue);
}

.hint {
  margin-top: 12px;
  margin-bottom: 0;
}

.mission-layout {
  display: grid;
  grid-template-columns: 270px minmax(0, 1fr) 260px;
  gap: 18px;
}

.task-pool,
.assignment-board,
.status-panel {
  padding: 20px;
}

.panel-note {
  font-size: 14px;
}

.task-list {
  display: grid;
  gap: 10px;
}

.task-card {
  border: 1px solid var(--line);
  border-left: 5px solid var(--cyan);
  border-radius: 8px;
  background: #fff;
  padding: 14px;
  cursor: grab;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.task-card:hover,
.task-card.is-selected {
  transform: translateY(-2px);
  border-color: var(--cyan);
  box-shadow: 0 12px 24px rgba(57, 188, 232, 0.14);
}

.task-card.is-placed {
  opacity: 0.48;
}

.task-card strong {
  display: block;
  margin-bottom: 6px;
}

.task-card small {
  display: block;
  color: var(--muted);
  line-height: 1.45;
}

.board-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  color: #1e6781;
  background: #e8f8ff;
  font-weight: 800;
  font-size: 13px;
}

.drop-zones {
  display: grid;
  grid-template-columns: repeat(5, minmax(128px, 1fr));
  gap: 10px;
  overflow-x: auto;
  padding: 16px 0;
}

.drop-zone {
  min-height: 250px;
  border: 1px dashed rgba(74, 119, 154, 0.38);
  border-radius: 8px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.62);
}

.drop-zone.is-over {
  border-color: var(--blue);
  background: #edf8ff;
}

.drop-zone h3 {
  font-size: 16px;
}

.placed-list {
  display: grid;
  gap: 8px;
}

.placed-task {
  border-radius: 8px;
  padding: 10px;
  background: #fff;
  border: 1px solid var(--line);
  font-weight: 800;
  font-size: 14px;
}

.placed-task.good {
  border-color: rgba(54, 201, 154, 0.75);
  background: #f0fff8;
}

.placed-task.warn {
  border-color: rgba(245, 184, 75, 0.82);
  background: #fff9ed;
}

.placed-task.bad {
  border-color: rgba(243, 111, 114, 0.74);
  background: #fff3f3;
}

.chain-view {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  padding-top: 10px;
}

.chain-node {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--muted);
  font-weight: 800;
}

.chain-node.is-complete {
  color: #115841;
  background: #effff8;
  border-color: rgba(54, 201, 154, 0.65);
}

.chain-node::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: currentColor;
}

.score-ring {
  display: grid;
  place-items: center;
  width: 132px;
  height: 132px;
  margin: 10px auto 22px;
  border-radius: 50%;
  color: var(--blue);
  font-size: 42px;
  font-weight: 900;
  font-family: Consolas, monospace;
  background:
    radial-gradient(circle, #fff 55%, transparent 56%),
    conic-gradient(var(--cyan), var(--mint), var(--amber), #edf3f8);
}

.lesson-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.lesson-card {
  min-height: 210px;
}

.lesson-card .mini-wave {
  height: 44px;
  border-radius: 8px;
  margin-bottom: 18px;
  background:
    repeating-radial-gradient(circle at left center, transparent 0 17px, rgba(57, 188, 232, 0.58) 18px 20px),
    #f5fbff;
}

.quiz-box {
  display: grid;
  gap: 18px;
}

.quiz-item {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.quiz-options {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.quiz-option {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fcff;
  padding: 0 12px;
  cursor: pointer;
}

.quiz-option.correct {
  border-color: var(--mint);
  background: #effff8;
}

.quiz-option.wrong {
  border-color: var(--coral);
  background: #fff4f4;
}

.report-hero h1 {
  font-family: Consolas, monospace;
}

.report-visual {
  max-width: 240px;
  aspect-ratio: 3 / 2;
}

.report-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 12px;
  border-radius: 999px;
  background: #edf8ff;
  color: #1b6f8c;
  border: 1px solid rgba(57, 188, 232, 0.42);
  font-weight: 800;
}

.learning-list {
  display: grid;
  gap: 10px;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.7;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 26px clamp(18px, 4vw, 54px);
  color: var(--muted);
  border-top: 1px solid rgba(157, 190, 214, 0.58);
}

@media print {
  .site-header,
  .site-footer,
  .hero-actions {
    display: none;
  }

  body {
    background: #fff;
  }

  .page-shell {
    width: 100%;
    padding: 0;
  }

  .report-hero,
  .info-card,
  .learning-output {
    box-shadow: none;
    break-inside: avoid;
  }
}

@keyframes sweep {
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

@keyframes pulseLine {
  0%,
  100% {
    opacity: 0.45;
  }
  50% {
    opacity: 1;
  }
}

@keyframes waveMove {
  to {
    transform: translateX(34px);
  }
}

@media (max-width: 980px) {
  .hero-shell,
  .mission-layout,
  .two-column {
    grid-template-columns: 1fr;
  }

  .hero-shell {
    min-height: auto;
  }

  .hero-scene {
    min-height: 420px;
  }

  .feature-grid.three,
  .lesson-grid,
  .timeline-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .status-panel {
    order: 3;
  }

  .page-hero.compact,
  .mission-bar,
  .showcase-band {
    grid-template-columns: 1fr;
  }

  .mission-visual,
  .report-visual {
    max-width: 100%;
    max-height: none;
  }

  .showcase-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    justify-content: flex-start;
  }

  .hero-scene {
    min-height: 340px;
  }

  .generated-hero img {
    min-height: 340px;
  }

  .hero-shell,
  .section,
  .page-shell {
    width: min(100% - 24px, 1180px);
  }

  .feature-grid.three,
  .lesson-grid,
  .timeline-row {
    grid-template-columns: 1fr;
  }

  .safety-note,
  .experiment-card,
  .mission-bar,
  .report-hero,
  .section-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .site-footer {
    flex-direction: column;
  }

  .showcase-stats {
    grid-template-columns: 1fr;
  }
}