:root {
  --bg: #07111b;
  --bg-alt: #0d1926;
  --surface: rgba(11, 22, 34, 0.78);
  --surface-strong: rgba(14, 28, 43, 0.92);
  --surface-soft: rgba(255, 255, 255, 0.04);
  --line: rgba(255, 255, 255, 0.1);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #f6f8fb;
  --muted: #8ea3b8;
  --accent: #49c5b6;
  --accent-strong: #1f9f92;
  --accent-soft: rgba(73, 197, 182, 0.15);
  --highlight: #f0b45d;
  --glow: rgba(73, 197, 182, 0.22);
  --shadow: 0 28px 60px rgba(0, 0, 0, 0.32);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Manrope", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(73, 197, 182, 0.16), transparent 28%),
    radial-gradient(circle at top right, rgba(240, 180, 93, 0.12), transparent 24%),
    linear-gradient(180deg, #07111b 0%, #0d1926 54%, #07111b 100%);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.55;
  pointer-events: none;
}

.mesh {
  position: fixed;
  border-radius: 999px;
  filter: blur(24px);
  pointer-events: none;
  z-index: 0;
  animation: float 12s ease-in-out infinite;
}

.mesh-a {
  width: 240px;
  height: 240px;
  top: 60px;
  left: -70px;
  background: rgba(73, 197, 182, 0.22);
}

.mesh-b {
  width: 300px;
  height: 300px;
  top: 300px;
  right: -120px;
  background: rgba(240, 180, 93, 0.14);
  animation-delay: -4s;
}

.mesh-c {
  width: 220px;
  height: 220px;
  bottom: 160px;
  left: 25%;
  background: var(--glow);
  animation-delay: -8s;
}

.app-shell {
  position: relative;
  z-index: 1;
  width: min(100%, 440px);
  margin: 0 auto;
  padding: 20px 16px 92px;
}

.section {
  margin-bottom: 26px;
}

.glass-card {
  position: relative;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02)),
    var(--surface);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(22px);
  overflow: hidden;
}

.glass-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.06), transparent 30%, transparent 70%, rgba(255, 255, 255, 0.04));
  pointer-events: none;
}

.hero-top,
.panel-head,
.system-pair,
.hero-pills,
.segmented,
.chips,
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-top,
.panel-head {
  align-items: flex-start;
  justify-content: space-between;
}

.eyebrow,
.section-kicker,
.subhead,
.micro-label {
  margin: 0;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow,
.section-kicker,
.micro-label {
  color: var(--accent);
}

.brand-name {
  margin: 6px 0 0;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.hero-status,
.soft-badge,
.card-badge,
.pill,
.route-chip,
.tag-list span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 12px;
  font-weight: 700;
}

.hero-status,
.soft-badge {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.soft-badge--accent,
.card-badge--accent {
  background: var(--accent-soft);
  border-color: rgba(73, 197, 182, 0.18);
  color: var(--accent);
}

.hero-copy {
  margin-top: 18px;
}

.hero-copy h1,
.section-head h2,
.hero-panel h2,
.system-card h3,
.industry-panel h3,
.audience-panel h3,
.flow-card h3,
.route-panel h2,
.bridge-card h3 {
  margin: 0;
  line-height: 1.12;
}

.hero-copy h1 {
  font-size: clamp(25px, 6.8vw, 38px);
  font-weight: 900;
  letter-spacing: -0.04em;
}

.body-copy {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.hero-copy .body-copy {
  margin-top: 14px;
  max-width: 38em;
}

.hero-pills {
  margin-top: 20px;
}

.pill {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.pill strong {
  color: var(--highlight);
  font-size: 14px;
}

.hero-panel,
.audience-panel,
.industry-panel,
.route-panel {
  margin-top: 18px;
  padding: 18px;
}

.section-head {
  margin-bottom: 16px;
}

.section-head h2 {
  margin-top: 8px;
  font-size: 28px;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.system-pair {
  margin-top: 18px;
}

.system-card {
  flex: 1 1 100%;
  padding: 18px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.system-card--accent {
  background:
    linear-gradient(180deg, rgba(73, 197, 182, 0.12), transparent 80%),
    rgba(255, 255, 255, 0.03);
}

.card-badge {
  width: fit-content;
  padding-inline: 10px;
  min-height: 30px;
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.system-card h3,
.bridge-card h3,
.flow-card h3,
.audience-panel h3,
.industry-panel h3 {
  margin-top: 14px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.system-card .body-copy,
.bridge-card .body-copy,
.flow-card .body-copy {
  margin-top: 10px;
}

.clean-list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.clean-list li {
  position: relative;
  padding-left: 18px;
  color: var(--text);
  font-size: 14px;
  line-height: 1.7;
}

.clean-list li + li {
  margin-top: 10px;
}

.clean-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 12px var(--glow);
}

.bridge-card {
  margin-top: 18px;
  padding: 18px;
  border-radius: 24px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.05), transparent 70%),
    rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.bridge-line {
  display: block;
  width: 56px;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--highlight));
  box-shadow: 0 0 18px var(--glow);
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.module-card {
  display: flex;
  flex-direction: column;
  padding: 14px;
  min-height: 0;
  animation: rise 0.6s ease both;
}

.module-head {
  display: flex;
  align-items: center;
  gap: 10px;
}

.module-card:nth-child(2) {
  animation-delay: 0.04s;
}

.module-card:nth-child(3) {
  animation-delay: 0.08s;
}

.module-card:nth-child(4) {
  animation-delay: 0.12s;
}

.module-card:nth-child(5) {
  animation-delay: 0.16s;
}

.module-card:nth-child(6) {
  animation-delay: 0.2s;
}

.module-card:nth-child(7) {
  animation-delay: 0.24s;
}

.module-card:nth-child(8) {
  animation-delay: 0.28s;
}

.module-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border-radius: 9px;
  background:
    linear-gradient(135deg, rgba(73, 197, 182, 0.25), rgba(240, 180, 93, 0.12)),
    rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(73, 197, 182, 0.18);
  color: var(--text);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.module-card h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.28;
}

.module-card .body-copy {
  margin-top: 9px;
  font-size: 13px;
  line-height: 1.62;
}

.module-tag {
  display: inline-flex;
  margin-top: 12px;
  padding: 6px 9px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--accent);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.segmented,
.chips {
  gap: 10px;
}

button {
  border: 0;
  font: inherit;
  cursor: pointer;
}

.segmented button,
.chips button {
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text);
  font-size: 13px;
  font-weight: 700;
  transition:
    transform 0.22s ease,
    background 0.22s ease,
    border-color 0.22s ease,
    box-shadow 0.22s ease;
}

.segmented button.active,
.chips button.active {
  transform: translateY(-1px);
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  border-color: transparent;
  box-shadow: 0 12px 26px var(--glow);
  color: #07111b;
}

.chips button.chip-more {
  background: rgba(255, 255, 255, 0.03);
  border-style: dashed;
  color: var(--muted);
  cursor: default;
  box-shadow: none;
}

.audience-layout,
.industry-grid {
  display: grid;
  gap: 16px;
  margin-top: 18px;
}

.tag-list {
  margin-top: 12px;
}

.tag-list span {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.tag-list--tight span {
  min-height: 30px;
  padding-inline: 10px;
}

.subhead {
  color: var(--muted);
}

.fact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.fact-card {
  padding: 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.fact-card .fact-label {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.fact-card .fact-value {
  margin: 10px 0 0;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.35;
}

.chart-panel {
  padding: 16px;
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(73, 197, 182, 0.08), transparent 80%),
    rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.chart-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.chart-bars {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: end;
  gap: 10px;
  height: 148px;
  margin-top: 18px;
}

.bar-column {
  display: flex;
  align-items: end;
  height: 100%;
}

.bar {
  position: relative;
  width: 100%;
  min-height: 28px;
  border-radius: 16px 16px 10px 10px;
  background: linear-gradient(180deg, var(--highlight), var(--accent));
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.18);
  overflow: hidden;
}

.bar::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.28), transparent 35%);
}

.chart-labels {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.chart-labels span {
  text-align: center;
  font-size: 11px;
  font-weight: 700;
  color: var(--muted);
  line-height: 1.45;
}

.industry-modules-wrap {
  margin-top: 18px;
}

.industry-modules {
  display: grid;
  gap: 10px;
  margin-top: 12px;
}

.industry-module {
  padding: 15px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
}

.industry-module h4 {
  margin: 0;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.industry-module p {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.flow-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.flow-card {
  padding: 14px;
  min-height: 0;
}

.flow-head {
  display: flex;
  align-items: center;
  gap: 10px;
}

.flow-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--highlight);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.bottom-nav {
  position: fixed;
  left: 50%;
  bottom: 14px;
  transform: translateX(-50%);
  width: min(calc(100% - 24px), 428px);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  padding: 8px;
  background: rgba(8, 15, 24, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 22px;
  box-shadow: 0 22px 46px rgba(0, 0, 0, 0.32);
  backdrop-filter: blur(16px);
  z-index: 4;
}

.bottom-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  color: rgba(255, 255, 255, 0.82);
  text-decoration: none;
  font-size: 13px;
  font-weight: 700;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-18px);
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 780px) {
  .app-shell {
    width: min(100%, 1100px);
    padding-inline: 22px;
  }

  .system-card {
    flex: 1 1 calc(50% - 5px);
  }

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

  .audience-layout,
  .industry-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (max-width: 520px) {
  .hero-top,
  .panel-head,
  .chart-top {
      flex-direction: column;
  }

  .hero-status,
  .soft-badge {
    align-self: flex-start;
  }

  .module-grid {
    gap: 10px;
  }

  .module-card {
    padding: 13px;
  }

  .module-icon {
    width: 22px;
    height: 22px;
    border-radius: 7px;
    font-size: 8px;
  }

  .module-card h3 {
    font-size: 15px;
    line-height: 1.3;
  }

  .module-card .body-copy {
    margin-top: 6px;
    font-size: 12px;
    line-height: 1.6;
  }

  .module-tag {
    margin-top: 9px;
    min-height: 24px;
    padding: 5px 8px;
    font-size: 9px;
  }

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

  .flow-card {
    padding: 13px;
  }

  .flow-index {
    width: 22px;
    height: 22px;
    border-radius: 7px;
    font-size: 8px;
  }

  .flow-card h3 {
    margin-top: 0;
    font-size: 15px;
    line-height: 1.3;
  }

  .flow-card .body-copy {
    margin-top: 6px;
    font-size: 12px;
    line-height: 1.6;
  }
}