:root {
  --ink: #101422;
  --muted: #5d6477;
  --blue: #202eff;
  --blue-dark: #07158f;
  --green: #18cf73;
  --orange: #ff7a2a;
  --yellow: #ffd34d;
  --purple: #6d35e8;
  --surface: #f7fbff;
  --card: rgba(255, 255, 255, 0.86);
  --line: rgba(23, 35, 78, 0.13);
  font-family:
    "Noto Sans SC",
    "PingFang SC",
    "Microsoft YaHei",
    system-ui,
    sans-serif;
  color: var(--ink);
  background: var(--surface);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 8% 6%, rgba(32, 46, 255, 0.12), transparent 28rem),
    radial-gradient(circle at 92% 12%, rgba(24, 207, 115, 0.18), transparent 22rem),
    linear-gradient(180deg, #eef7ff 0%, #f8fbff 44%, #eff4ff 100%);
}

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

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

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.icon,
.metric-icon,
.step-icon {
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.icon {
  width: 1.05rem;
  height: 1.05rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem clamp(1rem, 4vw, 4rem);
  border-bottom: 1px solid rgba(255, 255, 255, 0.7);
  background: rgba(246, 251, 255, 0.78);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
}

.brand-logo {
  width: 3rem;
  height: 3rem;
  object-fit: contain;
}

.brand strong {
  display: block;
  font-size: clamp(1.3rem, 2vw, 1.75rem);
  letter-spacing: -0.05em;
}

.brand small {
  display: block;
  margin-top: 0.15rem;
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
}

.nav-links {
  display: flex;
  flex: 1;
  justify-content: center;
  gap: clamp(0.8rem, 2.2vw, 2.2rem);
  color: #263153;
  font-size: 0.95rem;
}

.nav-links a {
  transition: color 180ms ease, transform 180ms ease;
}

.nav-links a:hover {
  color: var(--blue);
  transform: translateY(-1px);
}

.nav-cta,
.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.8rem;
  padding: 0 1.35rem;
  border-radius: 999px;
  font-weight: 800;
  gap: 0.45rem;
}

.nav-cta,
.primary-action {
  color: white;
  background: var(--blue);
  box-shadow: 0 14px 35px rgba(32, 46, 255, 0.24);
}

.secondary-action {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
}

.section-shell {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 1.08fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  padding: clamp(3rem, 8vw, 6.5rem) 0 4rem;
}

.hero > *,
.audience-grid > *,
.compare-card > *,
.classroom-section > *,
.contact-panel > *,
.showcase-spotlight > * {
  min-width: 0;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--blue);
  font-size: 0.95rem;
  font-weight: 900;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.hero h1,
.section-title h2,
.contact-panel h2,
.classroom-copy h2 {
  margin: 0;
  font-size: clamp(3.2rem, 7.2vw, 6.4rem);
  line-height: 1.1;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

.hero h1 span {
  display: block;
  color: var(--blue);
}

.hero h1 .hero-line-dark {
  color: var(--ink);
}

.hero-lead {
  max-width: 43rem;
  margin: 1.8rem 0 0;
  color: #333d5d;
  font-size: clamp(1.1rem, 2vw, 1.45rem);
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2rem;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  margin-top: 1.4rem;
}

.hero-tags span {
  position: relative;
  display: inline-flex;
  align-items: center;
  color: #263153;
  font-size: 0.95rem;
  font-weight: 800;
}

.hero-tags span + span::before {
  width: 0.28rem;
  height: 0.28rem;
  margin-right: 0.55rem;
  border-radius: 999px;
  background: currentColor;
  content: "";
  opacity: 0.35;
  color: var(--blue);
}

.hero-stage {
  position: relative;
  min-height: 34rem;
}

.orbit {
  position: absolute;
  border-radius: 999px;
  filter: blur(1px);
}

.orbit-one {
  inset: 7% 12% auto auto;
  width: 13rem;
  height: 13rem;
  background: rgba(24, 207, 115, 0.25);
}

.orbit-two {
  inset: auto auto 4% 8%;
  width: 18rem;
  height: 18rem;
  background: rgba(109, 53, 232, 0.18);
}

.screen-card {
  position: absolute;
  right: 2rem;
  top: 3rem;
  width: min(100%, 31rem);
  padding: 1.2rem;
  border: 1px solid rgba(255, 255, 255, 0.75);
  border-radius: 2rem;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(238, 244, 255, 0.78)),
    #fff;
  box-shadow: 0 40px 100px rgba(7, 21, 143, 0.22);
  transform: rotate(4deg);
}

.screen-topbar {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.screen-topbar span {
  width: 0.62rem;
  height: 0.62rem;
  border-radius: 999px;
  background: #b7c2ff;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.8rem;
}

.metric-row div,
.chart-card,
.task-list {
  border: 1px solid rgba(32, 46, 255, 0.08);
  border-radius: 1.1rem;
  background: rgba(255, 255, 255, 0.84);
}

.metric-row div {
  padding: 1rem;
  position: relative;
  overflow: hidden;
}

.metric-row b {
  display: block;
  color: var(--blue);
  font-size: 2rem;
}

.metric-row small {
  color: var(--muted);
}

.metric-icon {
  position: absolute;
  right: 0.75rem;
  top: 0.75rem;
  width: 1.45rem;
  height: 1.45rem;
  color: rgba(32, 46, 255, 0.22);
}

.chart-card {
  height: 10rem;
  margin-top: 0.8rem;
  overflow: hidden;
}

.chart-line {
  width: 130%;
  height: 100%;
  background:
    linear-gradient(135deg, transparent 18%, rgba(32, 46, 255, 0.14) 18% 21%, transparent 21% 36%, rgba(24, 207, 115, 0.22) 36% 39%, transparent 39%),
    radial-gradient(circle at 72% 38%, rgba(255, 122, 42, 0.65), transparent 0.35rem),
    radial-gradient(circle at 48% 64%, rgba(32, 46, 255, 0.7), transparent 0.35rem);
  transform: translateX(-8%);
}

.task-list {
  margin-top: 0.8rem;
  padding: 0.9rem;
}

.task-list p {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0.55rem 0;
  color: #253052;
  font-weight: 700;
}

.task-list span {
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 999px;
  background: var(--green);
}

.floating-chip,
.mascot-bubble {
  position: absolute;
  z-index: 2;
  border-radius: 1.1rem;
  color: white;
  font-weight: 900;
  box-shadow: 0 22px 55px rgba(18, 28, 94, 0.18);
}

.floating-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.9rem 1.1rem;
}

.chip-code {
  left: 8%;
  top: 42%;
  background: linear-gradient(135deg, var(--purple), var(--blue));
}

.chip-cloud {
  right: 0;
  bottom: 18%;
  background: linear-gradient(135deg, var(--blue), #16b6ff);
}

.mascot-bubble {
  left: 2%;
  top: 8%;
  max-width: 15rem;
  padding: 1rem 1.2rem;
  background: #101422;
}

.mascot-bubble::after {
  position: absolute;
  left: 1.8rem;
  bottom: -0.55rem;
  width: 1rem;
  height: 1rem;
  content: "";
  background: inherit;
  transform: rotate(45deg);
}

.section-title {
  max-width: 52rem;
  margin-bottom: 2rem;
}

.section-title h2,
.contact-panel h2,
.classroom-copy h2 {
  font-size: clamp(2.2rem, 5vw, 4.4rem);
}

.section-title h2 span {
  color: var(--blue);
}

.section-title.compact {
  text-align: center;
  margin-inline: auto;
}

.audience-section,
.workflow-section,
.control-section,
.classroom-section,
.contact-section {
  padding: clamp(3rem, 7vw, 5.5rem) 0;
}

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

.audience-card {
  min-height: 28rem;
  padding: clamp(1.4rem, 3vw, 2.3rem);
  border: 1px solid rgba(255, 255, 255, 0.75);
  border-radius: 2rem;
  background: var(--card);
  box-shadow: 0 24px 60px rgba(27, 43, 99, 0.09);
}

.adult-card {
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(231, 237, 255, 0.72)),
    #fff;
}

.kids-card {
  background:
    radial-gradient(circle at 88% 8%, rgba(24, 207, 115, 0.28), transparent 11rem),
    linear-gradient(145deg, rgba(250, 246, 255, 0.95), rgba(230, 255, 240, 0.72));
}

.card-icon {
  display: grid;
  width: 4rem;
  height: 4rem;
  place-items: center;
  border-radius: 1.2rem;
  color: white;
  background: var(--blue);
  font-size: 2rem;
  font-weight: 900;
}

.card-icon .icon {
  width: 2rem;
  height: 2rem;
}

.kids-card .card-icon {
  background: var(--green);
}

.card-kicker {
  margin: 1.5rem 0 0.4rem;
  color: var(--blue);
  font-weight: 900;
}

.audience-card h3 {
  margin: 0;
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  letter-spacing: -0.05em;
}

.audience-card p {
  color: #3e4864;
  line-height: 1.8;
}

.audience-card ul,
.compare-column ul {
  display: grid;
  gap: 0.75rem;
  padding: 0;
  margin: 1.3rem 0 0;
  list-style: none;
}

.audience-card li,
.compare-column li {
  position: relative;
  padding-left: 1.7rem;
  font-weight: 800;
}

.audience-card li::before,
.compare-column li::before {
  position: absolute;
  left: 0;
  color: var(--green);
  content: "✓";
}

.showcase-section {
  padding: clamp(2.6rem, 6vw, 5rem) 0;
}

.showcase-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 1.8rem;
}

.showcase-heading h2 {
  margin: 0;
  font-size: clamp(2.1rem, 4vw, 3.8rem);
  line-height: 1;
  letter-spacing: -0.07em;
}

.showcase-heading > p {
  max-width: 25rem;
  margin: 0;
  color: #46506a;
  line-height: 1.7;
}

.showcase-spotlight {
  display: grid;
  max-width: 58rem;
  margin: 0 auto;
}

.spotlight-main {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: 1.8rem;
  background: #eaf0ff;
  box-shadow: 0 28px 80px rgba(27, 43, 99, 0.14);
  aspect-ratio: 16 / 10;
}

.spotlight-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 320ms ease, filter 320ms ease;
}

.spotlight-main:hover img {
  transform: scale(1.03);
  filter: saturate(1.06);
}

.spotlight-label {
  position: absolute;
  inset: auto 0 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem 1.5rem;
  background: linear-gradient(to top, rgba(10, 18, 50, 0.72) 0%, transparent 100%);
  color: white;
  pointer-events: none;
}

.spotlight-label strong {
  font-size: 1.25rem;
  letter-spacing: -0.03em;
}

.spotlight-label span {
  font-size: 0.9rem;
  opacity: 0.82;
  white-space: nowrap;
}

.spotlight-thumbs {
  display: none;
}

.spotlight-thumb {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  min-height: 0;
  padding: 0.5rem;
  border: 2px solid transparent;
  border-radius: 1.1rem;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 6px 20px rgba(27, 43, 99, 0.08);
  cursor: pointer;
  text-align: left;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
  overflow: hidden;
}

.spotlight-thumb:hover {
  border-color: rgba(32, 46, 255, 0.2);
  transform: translateX(-2px);
}

.spotlight-thumb.is-active {
  border-color: var(--blue);
  box-shadow: 0 8px 28px rgba(32, 46, 255, 0.18);
}

.spotlight-thumb img {
  flex: 0 0 3.6rem;
  width: 3.6rem;
  height: 3.6rem;
  object-fit: cover;
  border-radius: 0.6rem;
}

.spotlight-thumb span {
  font-size: 0.88rem;
  font-weight: 800;
  color: #253052;
  line-height: 1.35;
}

.spotlight-dots {
  display: flex;
  justify-content: center;
  gap: 0.45rem;
  margin-top: 0.9rem;
}

.spotlight-dot {
  width: 0.45rem;
  height: 0.45rem;
  padding: 0;
  border: none;
  border-radius: 999px;
  background: rgba(32, 46, 255, 0.2);
  cursor: pointer;
  transition: width 220ms ease, background 220ms ease;
}

.spotlight-dot.is-active {
  width: 1.4rem;
  background: var(--blue);
}

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

.step-grid article {
  position: relative;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: 1.6rem;
  background: rgba(255, 255, 255, 0.78);
}

.step-grid span {
  display: grid;
  width: 2.7rem;
  height: 2.7rem;
  place-items: center;
  border-radius: 999px;
  color: white;
  background: var(--orange);
  font-size: 1.25rem;
  font-weight: 900;
}

.step-icon {
  position: absolute;
  right: 1.35rem;
  top: 1.35rem;
  width: 3.2rem;
  height: 3.2rem;
  color: rgba(32, 46, 255, 0.16);
}

.step-grid article:nth-child(2) span {
  background: var(--green);
}

.step-grid article:nth-child(3) span {
  background: var(--purple);
}

.step-grid h3 {
  margin: 1rem 0 0.5rem;
  font-size: 1.55rem;
}

.step-grid p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.compare-card {
  position: relative;
  display: grid;
  grid-template-columns: 0.78fr auto 1.22fr;
  gap: 1rem;
  align-items: stretch;
}

.compare-column {
  padding: clamp(1.4rem, 3vw, 2rem);
  border-radius: 1.8rem;
}

.compare-column.muted {
  background: #e9ecfb;
  color: #27304f;
}

.compare-column.highlight {
  border: 3px solid rgba(255, 211, 77, 0.8);
  background: #fff4cc;
}

.compare-column h3 {
  margin: 0 0 1rem;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
}

.compare-column p {
  color: #46506a;
  line-height: 1.8;
}

.big-claim {
  margin: 0.4rem 0 1rem;
  color: var(--blue) !important;
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 1000;
  letter-spacing: -0.08em;
  line-height: 1;
}

.mini-list,
.delivery-row,
.feature-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.mini-list span,
.delivery-row span,
.feature-strip span {
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
  padding: 0.7rem 0.9rem;
  border-radius: 0.9rem;
  background: rgba(255, 255, 255, 0.82);
  font-weight: 900;
}

.delivery-row span {
  color: var(--blue);
}

.vs-badge {
  display: grid;
  align-self: center;
  width: 4.4rem;
  height: 4.4rem;
  place-items: center;
  border: 0.45rem solid white;
  border-radius: 999px;
  color: white;
  background: var(--blue);
  font-size: 1.25rem;
  font-weight: 900;
  box-shadow: 0 18px 45px rgba(32, 46, 255, 0.28);
}

.classroom-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(1.4rem, 4vw, 3rem);
  align-items: center;
}

.classroom-copy h2 {
  font-size: clamp(2.45rem, 4.3vw, 4rem);
  line-height: 1.16;
}

.classroom-copy p:last-child {
  color: #404b69;
  font-size: 1.1rem;
  line-height: 1.9;
}

.classroom-points {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.35rem;
}

.classroom-points span {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.7rem 0.92rem;
  border: 1px solid rgba(32, 46, 255, 0.1);
  border-radius: 999px;
  color: #17315a;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 12px 32px rgba(16, 20, 34, 0.06);
  font-weight: 900;
}

.classroom-showcase {
  position: relative;
  display: grid;
  grid-template-columns: 1.28fr 0.72fr;
  gap: 0.85rem;
  padding: 0.85rem;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: 2.45rem;
  background:
    radial-gradient(circle at 10% 10%, rgba(255, 211, 77, 0.5), transparent 8rem),
    radial-gradient(circle at 95% 20%, rgba(255, 255, 255, 0.5), transparent 10rem),
    linear-gradient(135deg, #18cf73, #22d8bb);
  box-shadow: 0 30px 90px rgba(24, 207, 115, 0.24);
}

.classroom-showcase::before,
.classroom-showcase::after {
  position: absolute;
  content: "";
  border-radius: 999px;
  pointer-events: none;
}

.classroom-showcase::before {
  right: -3.5rem;
  bottom: -4.8rem;
  width: 13rem;
  height: 13rem;
  background: rgba(105, 62, 255, 0.2);
}

.classroom-showcase::after {
  top: 4.2rem;
  left: -2.5rem;
  width: 6.4rem;
  height: 6.4rem;
  border: 1.1rem solid rgba(255, 255, 255, 0.22);
}

.classroom-photo {
  position: relative;
  z-index: 1;
  margin: 0;
  overflow: hidden;
  border: 0.45rem solid rgba(255, 255, 255, 0.92);
  border-radius: 1.55rem;
  background: #dff9eb;
  box-shadow: 0 20px 50px rgba(16, 20, 34, 0.14);
}

.classroom-photo-main {
  min-height: 24rem;
}

.classroom-side-stack {
  display: grid;
  gap: 0.85rem;
}

.classroom-side-stack .classroom-photo {
  min-height: 11.55rem;
}

.classroom-photo img {
  width: 100%;
  height: 100%;
  min-height: inherit;
  object-fit: cover;
  transition: transform 240ms ease, filter 240ms ease;
}

.classroom-photo:hover img {
  filter: saturate(1.08) contrast(1.02);
  transform: scale(1.035);
}

.contact-panel {
  display: grid;
  grid-template-columns: 1fr minmax(220px, 0.38fr);
  gap: 2rem;
  padding: clamp(1.4rem, 4vw, 2.4rem);
  border-radius: 2rem;
  color: white;
  background:
    radial-gradient(circle at 15% 18%, rgba(255, 255, 255, 0.22), transparent 12rem),
    linear-gradient(135deg, #0823bd, #122bff 48%, #0fbf78);
  box-shadow: 0 30px 85px rgba(32, 46, 255, 0.28);
}

.contact-panel h2 {
  color: white;
}

.contact-panel .eyebrow {
  color: var(--yellow);
}

.contact-panel p {
  color: rgba(255, 255, 255, 0.82);
}

.feature-strip {
  margin-top: 1.4rem;
}

.feature-strip span {
  background: rgba(255, 255, 255, 0.12);
}

.qr-panel {
  padding: 1.3rem;
  border-radius: 1.5rem;
  color: var(--ink);
  background: white;
  text-align: center;
}

.qr-panel h3 {
  margin-top: 0;
  color: var(--blue);
}

.qr-grid {
  display: grid;
  justify-items: center;
}

.qr-grid div {
  display: grid;
  gap: 0.5rem;
  justify-items: center;
}

.qr-grid span {
  display: block;
  width: 9.8rem;
  max-width: 100%;
  aspect-ratio: 1;
  border-radius: 0.8rem;
  background:
    linear-gradient(90deg, transparent 46%, rgba(32, 46, 255, 0.16) 46% 54%, transparent 54%),
    linear-gradient(transparent 46%, rgba(32, 46, 255, 0.16) 46% 54%, transparent 54%),
    #f0f3fb;
}

.qr-grid .qr-code {
  padding: 0.35rem;
  background: white;
  box-shadow: 0 14px 35px rgba(16, 20, 34, 0.12);
}

.qr-grid img {
  width: 100%;
  height: 100%;
  border-radius: 0.55rem;
  object-fit: cover;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 2rem 1rem 3rem;
  color: var(--blue);
  font-size: 1.15rem;
  font-weight: 900;
}

.footer-logo {
  width: 1.8rem;
  height: 1.8rem;
  object-fit: contain;
}

.site-footer span {
  width: min(18vw, 16rem);
  height: 2px;
  background: currentColor;
}

.site-footer p {
  margin: 0;
  color: #263153;
}

@media (max-width: 920px) {
  .site-header {
    align-items: center;
  }

  .nav-links {
    display: none;
  }

  .hero,
  .audience-grid,
  .classroom-section,
  .contact-panel {
    grid-template-columns: 1fr;
  }

  .hero-stage {
    min-height: 27rem;
  }

  .screen-card {
    left: 1rem;
    right: 1rem;
    width: auto;
  }

  .compare-card {
    grid-template-columns: 1fr;
  }

  .vs-badge {
    margin: -0.8rem auto;
  }

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

  .classroom-photo-main,
  .classroom-side-stack .classroom-photo {
    min-height: 16rem;
  }

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

@media (max-width: 640px) {
  .section-shell {
    width: min(100% - 1.25rem, 1180px);
  }

  .site-header {
    position: sticky;
    padding: 0.9rem 1rem;
  }

  .brand {
    gap: 0.65rem;
  }

  .brand-logo {
    width: 2.35rem;
    height: 2.35rem;
  }

  .brand strong {
    font-size: 1.2rem;
  }

  .brand small,
  .nav-cta {
    display: none;
  }

  .hero {
    gap: 1.8rem;
    padding: 2.2rem 0 2.5rem;
    text-align: center;
  }

  .hero-copy,
  .section-title,
  .classroom-copy {
    width: min(100%, 21rem);
    margin-inline: auto;
  }

  .hero h1 {
    font-size: clamp(2.65rem, 13.5vw, 3.55rem);
    letter-spacing: -0.07em;
    overflow-wrap: anywhere;
  }

  .hero-lead {
    max-width: 20rem;
    margin-inline: auto;
    margin-top: 1.15rem;
    font-size: 1rem;
    line-height: 1.75;
    overflow-wrap: anywhere;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
    width: min(100%, 20rem);
    margin-inline: auto;
    justify-content: center;
    overflow: hidden;
  }

  .hero-tags {
    justify-content: center;
    width: 100%;
    gap: 0.45rem;
  }

  .hero-tags span {
    justify-content: center;
    font-size: 0.86rem;
  }

  .hero-tags span + span::before {
    margin-right: 0.45rem;
  }

  .hero-actions a {
    flex: 1 1 100%;
  }

  .hero-stage {
    min-height: auto;
    padding: 0.75rem 0 0.25rem;
  }

  .screen-card {
    position: relative;
    top: auto;
    left: auto;
    right: auto;
    width: min(100%, 21.5rem);
    margin: 0 auto;
    padding: 0.9rem;
    border-radius: 1.45rem;
    transform: none;
  }

  .metric-row {
    gap: 0.55rem;
  }

  .metric-row div {
    padding: 0.72rem;
  }

  .metric-row b {
    font-size: 1.45rem;
  }

  .chart-card {
    height: 7rem;
  }

  .task-list {
    font-size: 0.9rem;
  }

  .mascot-bubble,
  .floating-chip,
  .orbit,
  .chip-cloud {
    display: none;
  }

  .audience-section,
  .workflow-section,
  .control-section,
  .classroom-section,
  .contact-section,
  .showcase-section {
    padding: 2.5rem 0;
  }

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

  .section-title {
    margin-bottom: 1.3rem;
  }

  .section-title h2,
  .contact-panel h2,
  .classroom-copy h2 {
    line-height: 1.22;
    letter-spacing: 0;
    overflow-wrap: break-word;
  }

  .section-title h2 {
    font-size: clamp(1.75rem, 8vw, 2.05rem);
  }

  .contact-panel h2,
  .classroom-copy h2 {
    font-size: clamp(1.9rem, 9.5vw, 2.75rem);
  }

  .audience-card p,
  .compare-column p,
  .classroom-copy p,
  .contact-panel p {
    overflow-wrap: break-word;
  }

  .audience-card {
    width: 100%;
    max-width: 100%;
    overflow: hidden;
    padding: 1.25rem;
    border-radius: 1.45rem;
  }

  .showcase-heading {
    display: block;
    margin-bottom: 1rem;
    text-align: center;
  }

  .showcase-heading > p {
    margin-top: 0.8rem;
  }

  .showcase-heading h2 {
    font-size: clamp(1.65rem, 7vw, 1.9rem);
    line-height: 1.1;
    overflow-wrap: break-word;
  }

  .showcase-spotlight {
    max-width: 100%;
  }

  .spotlight-main {
    border-radius: 1.35rem;
    aspect-ratio: 4 / 3;
  }

  .spotlight-label {
    display: grid;
    justify-items: start;
    padding: 1rem;
  }

  .spotlight-label strong {
    font-size: 1.05rem;
  }

  .spotlight-label span {
    white-space: normal;
  }

  .spotlight-dots {
    display: flex;
    flex-wrap: wrap;
    padding: 0 0.6rem;
  }

  .audience-section {
    padding-top: 3rem;
  }

  .compare-column {
    padding: 1.2rem;
    border-radius: 1.35rem;
  }

  .compare-column.highlight {
    border-width: 2px;
  }

  .big-claim {
    max-width: 18rem;
    font-size: clamp(2rem, 9vw, 2.35rem);
    line-height: 1.12;
    letter-spacing: -0.04em;
  }

  .mini-list span,
  .feature-strip span {
    flex: 1 1 100%;
  }

  .delivery-row span {
    flex: 1 1 calc(50% - 0.35rem);
    justify-content: center;
  }

  .vs-badge {
    width: 3.6rem;
    height: 3.6rem;
    border-width: 0.35rem;
  }

  .classroom-showcase {
    padding: 0.65rem;
    border-radius: 1.65rem;
    gap: 0.65rem;
  }

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

  .classroom-photo-main,
  .classroom-side-stack .classroom-photo {
    min-height: 0;
    aspect-ratio: 4 / 3;
  }

  .contact-panel {
    gap: 1.35rem;
    border-radius: 1.45rem;
  }

  .qr-panel {
    padding: 1rem;
    border-radius: 1.1rem;
  }

  .site-footer {
    gap: 0.45rem;
    padding-bottom: 2rem;
    font-size: 0.95rem;
    white-space: nowrap;
  }

  .site-footer span {
    display: none;
  }

  .footer-logo {
    width: 1.25rem;
    height: 1.25rem;
  }
}