:root {
  --bg: #06133a;
  --panel: rgba(255, 255, 255, 0.08);
  --panel-strong: rgba(255, 255, 255, 0.14);
  --text: #f2fbff;
  --muted: #a9c4df;
  --cyan: #18d8e8;
  --blue: #2f7cff;
  --green: #14c7a9;
  --gold: #f4aa18;
  --line: rgba(105, 231, 255, 0.22);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 80% 4%, rgba(37, 219, 255, 0.30), transparent 28rem),
    radial-gradient(circle at 6% 22%, rgba(72, 114, 255, 0.28), transparent 30rem),
    radial-gradient(circle at 78% 74%, rgba(20, 199, 169, 0.16), transparent 34rem),
    linear-gradient(180deg, #071845 0%, #061136 42%, #050d28 100%);
  overflow-x: hidden;
  cursor: default;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(105, 231, 255, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(105, 231, 255, 0.10) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image:
    radial-gradient(circle at 78% 10%, black, transparent 36rem),
    linear-gradient(to bottom, rgba(0, 0, 0, 0.56), transparent 82%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(115deg, transparent 0 28%, rgba(114, 242, 255, 0.08) 28% 28.5%, transparent 28.5% 100%),
    linear-gradient(115deg, transparent 0 42%, rgba(114, 242, 255, 0.06) 42% 42.35%, transparent 42.35% 100%);
  opacity: 0.9;
}

.ambient-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

.mesh,
.beam {
  position: absolute;
  display: block;
}

.mesh {
  border: 1px solid rgba(126, 237, 255, 0.20);
  border-radius: 50%;
  filter: drop-shadow(0 0 24px rgba(73, 230, 255, 0.22));
}

.mesh-a {
  width: 560px;
  height: 560px;
  top: -160px;
  right: -130px;
}

.mesh-b {
  width: 420px;
  height: 420px;
  left: -210px;
  top: 620px;
  opacity: 0.45;
}

.beam {
  height: 1px;
  width: 740px;
  background: linear-gradient(90deg, transparent, rgba(126, 237, 255, 0.45), transparent);
  transform: rotate(-24deg);
}

.beam-a {
  top: 340px;
  right: -160px;
}

.beam-b {
  top: 1080px;
  left: -220px;
  opacity: 0.45;
}

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

p,
h1,
h2,
h3,
span,
strong,
em,
b,
small,
li,
article,
section {
  cursor: default;
}

a,
button,
summary,
.button,
.header-cta {
  cursor: pointer;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 12px clamp(20px, 5vw, 72px);
  background: rgba(5, 18, 55, 0.78);
  border-bottom: 1px solid rgba(109, 232, 255, 0.18);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 188px;
}

.brand img {
  width: 46px;
  height: 46px;
  object-fit: contain;
  object-position: left center;
  filter: drop-shadow(0 0 12px rgba(90, 222, 255, 0.42));
}

.brand span {
  display: grid;
  gap: 2px;
  line-height: 1;
}

.brand strong {
  color: #ffffff;
  font-size: 22px;
  font-weight: 900;
}

.brand em {
  color: #8eefff;
  font-size: 10px;
  font-style: normal;
  font-weight: 800;
}

.nav {
  display: flex;
  align-items: center;
  gap: 26px;
  color: #c9ddf0;
  font-size: 15px;
}

.nav a {
  padding: 8px 0;
}

.nav a:hover {
  color: #ffffff;
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 20px;
  border-radius: 6px;
  font-weight: 700;
  white-space: nowrap;
}

.header-cta,
.button.primary {
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  box-shadow: 0 12px 28px rgba(24, 216, 232, 0.28);
}

.button.secondary {
  border: 1px solid rgba(132, 235, 255, 0.36);
  background: rgba(255, 255, 255, 0.08);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(360px, 0.76fr);
  gap: 48px;
  min-height: calc(100vh - 76px);
  padding: 92px clamp(20px, 5vw, 72px) 72px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 28px clamp(20px, 5vw, 72px) auto;
  height: 78%;
  border: 1px solid rgba(126, 237, 255, 0.12);
  border-radius: 18px;
  background:
    radial-gradient(circle at 76% 20%, rgba(24, 216, 232, 0.14), transparent 24rem),
    linear-gradient(135deg, rgba(255, 255, 255, 0.045), transparent 58%);
  opacity: 0.78;
  pointer-events: none;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.orbit {
  position: absolute;
  border: 1px solid rgba(107, 235, 255, 0.35);
  border-radius: 50%;
}

.orbit-a {
  width: 620px;
  height: 620px;
  top: -150px;
  right: -110px;
}

.orbit-b {
  width: 420px;
  height: 420px;
  top: 20px;
  right: 42px;
}

.node {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #7ef5ff;
  box-shadow: 0 0 22px #7ef5ff;
}

.n1 { right: 29%; top: 19%; }
.n2 { right: 19%; top: 32%; }
.n3 { right: 12%; top: 22%; }

.hero-content,
.system-panel {
  position: relative;
  z-index: 1;
}

.eyebrow {
  margin: 0 0 12px;
  color: #77f1ff;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0;
}

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

h1 {
  max-width: 820px;
  margin-bottom: 22px;
  font-size: clamp(48px, 6vw, 82px);
  line-height: 1.08;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 720px;
  color: #cae2f4;
  font-size: 20px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin: 34px 0;
  flex-wrap: wrap;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 160px));
  gap: 14px;
  max-width: 560px;
}

.hero-metrics div {
  min-height: 96px;
  padding: 18px;
  border: 1px solid rgba(113, 234, 255, 0.24);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.07);
}

.hero-metrics strong {
  display: block;
  font-size: 30px;
}

.hero-metrics span {
  color: var(--muted);
  font-size: 14px;
}

.system-panel {
  align-self: center;
  min-height: 560px;
  padding: 24px;
  border: 1px solid rgba(126, 237, 255, 0.3);
  border-radius: 8px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.06));
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.panel-header {
  display: flex;
  align-items: center;
  gap: 9px;
  height: 44px;
  border-bottom: 1px solid rgba(126, 237, 255, 0.2);
}

.panel-header span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--cyan);
}

.panel-header p {
  margin: 0 0 0 10px;
  color: #b7e5f8;
  font-size: 13px;
}

.signal-map {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.signal-card {
  min-height: 92px;
  padding: 18px;
  border: 1px solid rgba(126, 237, 255, 0.18);
  border-radius: 8px;
  background: rgba(2, 22, 62, 0.58);
}

.signal-card.active {
  border-color: rgba(24, 216, 232, 0.8);
  box-shadow: 0 0 32px rgba(24, 216, 232, 0.18);
}

.signal-card b,
.signal-card em {
  display: block;
  font-style: normal;
}

.signal-card b {
  margin-bottom: 8px;
  font-size: 20px;
}

.signal-card em {
  color: var(--muted);
}

.chart {
  display: flex;
  align-items: end;
  gap: 18px;
  height: 150px;
  margin-top: 34px;
  padding: 18px;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.16);
}

.chart i {
  flex: 1;
  border-radius: 5px 5px 0 0;
  background: linear-gradient(180deg, #7bf8ff, #2f7cff);
}

.section {
  position: relative;
  padding: 78px clamp(20px, 5vw, 72px);
}

.vision-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  gap: 28px;
  padding: 86px clamp(20px, 5vw, 72px);
  background:
    radial-gradient(circle at 12% 22%, rgba(24, 216, 232, 0.14), transparent 28rem),
    linear-gradient(135deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.025));
}

.vision-copy {
  max-width: 660px;
}

.vision-copy h2 {
  margin-bottom: 18px;
  font-size: clamp(34px, 4.4vw, 58px);
  line-height: 1.15;
}

.vision-copy p {
  color: #c5ddf2;
  font-size: 18px;
  line-height: 1.82;
}

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

.era-grid article {
  position: relative;
  min-height: 290px;
  padding: 28px;
  overflow: hidden;
  border: 1px solid rgba(126, 237, 255, 0.22);
  border-radius: 8px;
  background: linear-gradient(150deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.055));
  box-shadow: var(--shadow);
}

.era-grid article::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -80px;
  width: 220px;
  height: 220px;
  border: 1px solid rgba(126, 237, 255, 0.22);
  border-radius: 50%;
}

.era-grid small {
  color: #74f4ff;
  font-weight: 900;
}

.era-grid h3 {
  margin: 18px 0 12px;
  font-size: 28px;
}

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

.era-grid b {
  position: absolute;
  left: 28px;
  bottom: 28px;
  color: #ffffff;
}

.section-head {
  max-width: 760px;
  margin-bottom: 30px;
}

.section h2 {
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.2;
}

.feature-grid,
.insight-grid,
.matrix-grid,
.compare-grid,
.urgency-grid,
.definition-grid,
.cooperation-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.feature-grid article,
.matrix-grid article,
.compare-grid article,
.urgency-grid article,
.definition-grid article,
.cooperation-grid article,
.faq details {
  border: 1px solid rgba(126, 237, 255, 0.22);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 16px 46px rgba(0, 0, 0, 0.15);
}

.feature-grid article,
.matrix-grid article,
.compare-grid article,
.urgency-grid article,
.definition-grid article,
.cooperation-grid article {
  padding: 26px;
}

.feature-grid span,
.urgency-grid span,
.cooperation-grid span {
  color: var(--cyan);
  font-weight: 800;
}

.feature-grid p,
.matrix-grid p,
.compare-grid p,
.urgency-grid p,
.definition-grid p,
.timeline p,
.faq p,
.contact p {
  color: var(--muted);
  line-height: 1.75;
}

.urgency-section {
  background:
    radial-gradient(circle at 82% 12%, rgba(24, 216, 232, 0.18), transparent 26rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.015));
}

.cooperation-section {
  background:
    radial-gradient(circle at 78% 18%, rgba(20, 199, 169, 0.18), transparent 26rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(47, 124, 255, 0.055));
}

.cooperation-grid {
  align-items: stretch;
}

.cooperation-grid article {
  display: flex;
  flex-direction: column;
  min-height: 560px;
  border-color: rgba(126, 237, 255, 0.24);
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.045));
}

.cooperation-grid .featured-mode {
  border-color: rgba(24, 216, 232, 0.72);
  background:
    radial-gradient(circle at 80% 10%, rgba(24, 216, 232, 0.16), transparent 18rem),
    linear-gradient(160deg, rgba(24, 216, 232, 0.16), rgba(47, 124, 255, 0.075));
}

.cooperation-grid h3 {
  margin: 14px 0 10px;
  font-size: 28px;
}

.mode-position {
  margin-bottom: 12px;
  color: #e8fbff;
  font-weight: 800;
}

.cooperation-grid p:not(.mode-position) {
  color: var(--muted);
  line-height: 1.75;
}

.cooperation-grid ul {
  display: grid;
  gap: 10px;
  margin: 18px 0 24px;
  padding: 0;
  list-style: none;
}

.cooperation-grid li {
  color: #cce4f4;
  line-height: 1.45;
}

.cooperation-grid li::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 10px;
  border-radius: 50%;
  background: var(--cyan);
  vertical-align: 2px;
}

.mode-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  margin-top: auto;
  padding: 0 18px;
  border: 1px solid rgba(126, 237, 255, 0.32);
  border-radius: 6px;
  color: #e8fbff;
  background: rgba(255, 255, 255, 0.08);
  font-weight: 800;
}

.featured-mode .mode-link {
  color: #031333;
  background: linear-gradient(135deg, #73f5ff, #18d8e8);
}

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

.urgency-grid article {
  min-height: 240px;
  background:
    linear-gradient(160deg, rgba(24, 216, 232, 0.13), rgba(255, 255, 255, 0.055));
}

.brand-definition {
  background:
    radial-gradient(circle at 12% 12%, rgba(47, 124, 255, 0.18), transparent 26rem),
    rgba(255, 255, 255, 0.025);
}

.definition-panel {
  padding: clamp(28px, 5vw, 48px);
  border: 1px solid rgba(126, 237, 255, 0.24);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.07);
  box-shadow: var(--shadow);
}

.definition-panel > p {
  max-width: 980px;
  margin-bottom: 28px;
  color: #e9fbff;
  font-size: 22px;
  line-height: 1.75;
  font-weight: 700;
}

.definition-grid article {
  background: rgba(2, 17, 51, 0.42);
}

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

.insight {
  background:
    radial-gradient(circle at 14% 20%, rgba(47, 124, 255, 0.24), transparent 24rem),
    linear-gradient(120deg, rgba(8, 40, 96, 0.74), rgba(5, 16, 48, 0.86)),
    repeating-linear-gradient(135deg, rgba(125, 240, 255, 0.055) 0 1px, transparent 1px 24px);
}

.insight-grid article {
  min-height: 168px;
  padding: 24px;
  border: 1px solid rgba(126, 237, 255, 0.2);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(24, 216, 232, 0.13), rgba(255, 255, 255, 0.055));
}

.insight-grid strong,
.insight-grid span {
  display: block;
}

.insight-grid strong {
  margin-bottom: 12px;
  color: #ffffff;
  font-size: 26px;
}

.insight-grid span {
  color: #bcd4ea;
}

.matrix {
  background:
    radial-gradient(circle at 10% 30%, rgba(47, 124, 255, 0.14), transparent 34rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.025), rgba(24, 216, 232, 0.055));
}

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

.matrix-grid article {
  min-height: 260px;
}

.matrix-grid span {
  color: var(--cyan);
  font-weight: 900;
}

.compare-section {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(47, 124, 255, 0.06)),
    radial-gradient(circle at 72% 20%, rgba(24, 216, 232, 0.18), transparent 26rem);
}

.compare-grid article {
  min-height: 230px;
}

.compare-grid .active {
  border-color: rgba(24, 216, 232, 0.72);
  background: linear-gradient(150deg, rgba(24, 216, 232, 0.18), rgba(47, 124, 255, 0.12));
}

.split {
  background: rgba(255, 255, 255, 0.035);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.timeline div {
  min-height: 220px;
  padding: 24px 18px;
  border-top: 2px solid var(--cyan);
  background: rgba(255, 255, 255, 0.06);
}

.timeline b {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-bottom: 18px;
  border-radius: 50%;
  background: var(--cyan);
  color: #031333;
}

.platform-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.platform-strip span {
  padding: 12px 18px;
  border: 1px solid rgba(126, 237, 255, 0.25);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
  color: #e8faff;
  font-weight: 700;
}

.solutions-section {
  overflow: hidden;
  background:
    radial-gradient(circle at 80% 12%, rgba(20, 199, 169, 0.26), transparent 24rem),
    radial-gradient(circle at 18% 82%, rgba(47, 124, 255, 0.20), transparent 28rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(24, 216, 232, 0.045));
}

.solutions-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(126, 237, 255, 0.12) 1px, transparent 1px),
    linear-gradient(rgba(126, 237, 255, 0.08) 1px, transparent 1px);
  background-size: 88px 88px;
  opacity: 0.38;
  pointer-events: none;
}

.solution-tabs,
.solution-stage {
  position: relative;
  z-index: 1;
}

.solution-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 22px;
  overflow-x: auto;
}

.solution-tabs button {
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid rgba(126, 237, 255, 0.26);
  border-radius: 6px;
  color: #d9f8ff;
  background: rgba(255, 255, 255, 0.07);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  white-space: nowrap;
}

.solution-tabs button.active {
  color: #02163d;
  background: linear-gradient(135deg, #73f5ff, #18d8e8);
}

.solution-stage {
  min-height: 360px;
  border: 1px solid rgba(126, 237, 255, 0.26);
  border-radius: 8px;
  background: rgba(2, 17, 51, 0.66);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.solution-panel {
  display: none;
  min-height: 360px;
  padding: clamp(28px, 5vw, 54px);
  background:
    radial-gradient(circle at 86% 18%, rgba(126, 237, 255, 0.18), transparent 22rem),
    linear-gradient(135deg, rgba(255, 255, 255, 0.10), rgba(255, 255, 255, 0.02));
}

.solution-panel.active {
  display: block;
  animation: panelIn 0.38s ease both;
}

.solution-panel span {
  color: #73f5ff;
  font-weight: 900;
}

.solution-panel h3 {
  max-width: 760px;
  margin: 18px 0 14px;
  font-size: clamp(30px, 4vw, 48px);
}

.solution-panel p {
  max-width: 850px;
  color: #c4dff0;
  font-size: 18px;
  line-height: 1.8;
}

.solution-panel ul {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  padding: 0;
  list-style: none;
}

.solution-panel li {
  padding: 10px 14px;
  border: 1px solid rgba(126, 237, 255, 0.26);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
  color: #e8fbff;
}

.faq {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  background:
    radial-gradient(circle at 86% 12%, rgba(47, 124, 255, 0.15), transparent 26rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.025), rgba(255, 255, 255, 0.045));
}

.faq .section-head {
  grid-column: 1 / -1;
}

.faq details {
  padding: 20px 24px;
}

.faq summary {
  cursor: pointer;
  font-size: 18px;
  font-weight: 800;
}

.faq p {
  margin: 14px 0 0;
}

.contact {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin: 48px clamp(20px, 5vw, 72px) 84px;
  padding: 34px;
  border: 1px solid rgba(126, 237, 255, 0.32);
  border-radius: 8px;
  background:
    radial-gradient(circle at 86% 8%, rgba(126, 237, 255, 0.18), transparent 20rem),
    linear-gradient(135deg, rgba(24, 216, 232, 0.16), rgba(47, 124, 255, 0.18));
}

.contact h2 {
  margin-bottom: 10px;
  font-size: 34px;
}

.contact-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.qr-card {
  display: grid;
  justify-items: center;
  gap: 8px;
  width: 132px;
  padding: 10px;
  border: 1px solid rgba(126, 237, 255, 0.32);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.10);
}

.qr-card img {
  width: 108px;
  height: 108px;
  object-fit: cover;
  border-radius: 6px;
  background: #ffffff;
}

.qr-card span {
  color: #dffbff;
  font-size: 13px;
  font-weight: 800;
}

.page-hero {
  min-height: 420px;
  padding: 108px clamp(20px, 5vw, 72px) 72px;
  background:
    radial-gradient(circle at 76% 12%, rgba(24, 216, 232, 0.26), transparent 28rem),
    linear-gradient(135deg, rgba(255, 255, 255, 0.06), transparent 55%);
}

.page-hero h1 {
  max-width: 900px;
  margin-bottom: 18px;
  font-size: clamp(42px, 6vw, 76px);
}

.page-hero p:not(.eyebrow) {
  max-width: 820px;
  color: #c9e1f2;
  font-size: 20px;
  line-height: 1.8;
}

.solution-list,
.case-grid,
.about-band {
  display: grid;
  gap: 20px;
}

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

.case-grid,
.about-band {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.solution-list article,
.case-grid article,
.about-band article {
  min-height: 280px;
  padding: 28px;
  border: 1px solid rgba(126, 237, 255, 0.22);
  border-radius: 8px;
  background: linear-gradient(150deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.045));
}

.solution-list span,
.case-grid b {
  color: var(--cyan);
  font-weight: 900;
}

.solution-list p,
.case-grid p,
.about-band p {
  color: var(--muted);
  line-height: 1.78;
}

.solution-list ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  list-style: none;
}

.solution-list li {
  padding: 8px 12px;
  border-radius: 6px;
  background: rgba(24, 216, 232, 0.12);
  color: #e8fbff;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 24px clamp(20px, 5vw, 72px);
  border-top: 1px solid rgba(126, 237, 255, 0.18);
  color: var(--muted);
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.62s ease, transform 0.62s ease;
}

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

@keyframes panelIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .nav {
    display: none;
  }

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

  .timeline,
  .feature-grid,
  .insight-grid,
  .matrix-grid,
  .compare-grid,
  .urgency-grid,
  .definition-grid,
  .cooperation-grid,
  .faq,
  .vision-section,
  .era-grid,
  .solution-list,
  .case-grid,
  .about-band {
    grid-template-columns: 1fr;
  }

  .system-panel {
    min-height: 460px;
  }
}

@media (max-width: 640px) {
  .site-header {
    padding-inline: 16px;
  }

  .brand {
    min-width: 144px;
    gap: 8px;
  }

  .brand img {
    width: 38px;
    height: 38px;
  }

  .brand strong {
    font-size: 18px;
  }

  .brand em {
    font-size: 8px;
  }

  .header-cta {
    min-height: 38px;
    padding-inline: 12px;
    font-size: 13px;
  }

  .hero {
    padding: 64px 16px 56px;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 58px 16px;
  }

  .contact,
  .footer,
  .solution-list,
  .case-grid,
  .about-band {
    flex-direction: column;
    align-items: flex-start;
    grid-template-columns: 1fr;
  }

  .contact-actions {
    justify-content: flex-start;
  }
}