:root {
  color-scheme: dark;
  --bg: #031426;
  --bg-deep: #02101f;
  --band: #061b2d;
  --band-strong: #08243a;
  --text: #f5f8fb;
  --body: #c7d4dd;
  --muted: #91a7b6;
  --accent: #28c9bd;
  --accent-bright: #4be1d6;
  --accent-dark: #0c837f;
  --border: rgba(91, 181, 193, 0.25);
  --border-strong: rgba(75, 225, 214, 0.5);
  --shadow: 0 22px 60px rgba(0, 0, 0, 0.28);
  --max: 1180px;
  --gutter: clamp(20px, 4vw, 32px);
  --section: clamp(74px, 9vw, 124px);
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 88% 8%, rgba(18, 81, 104, 0.22), transparent 32%),
    linear-gradient(180deg, var(--bg-deep) 0%, var(--bg) 24%, #041a2d 100%);
  color: var(--body);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  display: block;
}

img {
  max-width: 100%;
}

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

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

p:last-child,
ul:last-child,
ol:last-child {
  margin-bottom: 0;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  transform: translateY(-150%);
  padding: 10px 14px;
  background: var(--accent);
  color: #001b20;
  font-weight: 700;
}

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

.container {
  width: min(100% - (var(--gutter) * 2), var(--max));
  margin-inline: auto;
}

.site-header {
  position: relative;
  z-index: 20;
  border-bottom: 1px solid var(--border);
  background: rgba(2, 16, 31, 0.92);
  backdrop-filter: blur(14px);
}

.nav-shell {
  min-height: 76px;
  display: flex;
  align-items: center;
  gap: 30px;
}

.brand {
  flex: 0 0 auto;
  color: var(--text);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.primary-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(16px, 2.5vw, 30px);
  flex: 1 1 auto;
}

.primary-nav a {
  position: relative;
  padding: 24px 0 21px;
  color: #c1ced7;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  transition: color 180ms ease;
}

.primary-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 16px;
  height: 2px;
  transform: scaleX(0);
  background: var(--accent);
  transition: transform 180ms ease;
  transform-origin: center;
}

.primary-nav a:hover,
.primary-nav a:focus-visible,
.primary-nav a[aria-current="page"] {
  color: var(--text);
}

.primary-nav a:hover::after,
.primary-nav a:focus-visible::after,
.primary-nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 0 0 auto;
}

.nav-login {
  color: #c8d5dd;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 22px;
  border: 1px solid transparent;
  border-radius: 3px;
  font-family: var(--font);
  font-size: 15px;
  font-weight: 750;
  letter-spacing: 0.01em;
  line-height: 1.2;
  cursor: pointer;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease, color 180ms ease;
}

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

.button-primary {
  background: var(--accent);
  color: #001b20;
  box-shadow: 0 12px 28px rgba(40, 201, 189, 0.17);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--accent-bright);
}

.button-secondary {
  border-color: var(--border-strong);
  background: rgba(3, 20, 38, 0.48);
  color: var(--text);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: var(--accent-bright);
  background: rgba(13, 63, 77, 0.42);
}

:focus-visible {
  outline: 3px solid rgba(75, 225, 214, 0.42);
  outline-offset: 4px;
}

.hero {
  position: relative;
  min-height: 690px;
  display: grid;
  align-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 150px;
  pointer-events: none;
  background: linear-gradient(180deg, transparent, rgba(3, 20, 38, 0.92));
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(520px, 1.08fr);
  align-items: center;
  gap: clamp(32px, 5vw, 72px);
  padding-block: clamp(82px, 10vw, 132px);
}

.hero-copy {
  position: relative;
  z-index: 3;
}

.hero h1 {
  max-width: 760px;
  margin-bottom: 28px;
  color: var(--text);
  font-size: clamp(48px, 5.2vw, 64px);
  font-weight: 820;
  letter-spacing: -0.045em;
  line-height: 1.12;
  text-wrap: balance;
}

.hero-detail h1 {
  font-size: clamp(44px, 4.4vw, 52px);
  line-height: 1.16;
}

.hero-lead {
  max-width: 490px;
  margin-bottom: 36px;
  color: #c8d5de;
  font-size: clamp(18px, 1.7vw, 21px);
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero-visual {
  position: absolute;
  z-index: 1;
  inset: 0 -9% 0 44%;
  background-image: url("/assets/seo/network-world.webp");
  background-repeat: no-repeat;
  background-position: center right;
  background-size: cover;
  pointer-events: none;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--bg-deep) 0%, rgba(2, 16, 31, 0.82) 20%, transparent 54%);
}

.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(2, 16, 31, 0.1), transparent 66%, var(--bg) 100%);
}

@media (min-width: 821px) {
  .hero-detail .hero-lead {
    max-width: 470px;
    font-size: 19px;
    line-height: 1.9;
    letter-spacing: 0.005em;
  }
}

/* Public services landing page. Auth pages and theme assets do not load these selectors. */
.landing-page .site-header {
  position: sticky;
  top: 0;
  background: rgba(2, 14, 28, 0.82);
}

.landing-page .hero-landing {
  min-height: 640px;
  isolation: isolate;
  background:
    radial-gradient(circle at 69% 36%, rgba(34, 193, 194, 0.12), transparent 24%),
    linear-gradient(180deg, #02101f 0%, #031426 100%);
}

.hero-landing::before {
  content: "";
  position: absolute;
  z-index: 0;
  inset: 0;
  opacity: 0.24;
  background-image:
    linear-gradient(rgba(78, 225, 214, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(78, 225, 214, 0.05) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at 68% 42%, #000, transparent 68%);
  pointer-events: none;
}

.hero-landing::after {
  z-index: 2;
  height: 230px;
  background: linear-gradient(180deg, transparent, rgba(3, 20, 38, 0.98) 86%);
}

.hero-landing .hero-grid {
  z-index: 4;
  grid-template-columns: minmax(0, 1.18fr) minmax(360px, 0.82fr);
  gap: 36px;
  padding-block: 72px 210px;
}

.hero-landing .hero-copy {
  max-width: 670px;
}

.hero-landing h1 {
  max-width: 700px;
  margin-bottom: 22px;
  font-size: clamp(48px, 4.4vw, 60px);
  line-height: 1.1;
}

.hero-landing .hero-lead {
  max-width: 535px;
  margin-bottom: 30px;
  font-size: clamp(17px, 1.55vw, 20px);
  line-height: 1.75;
}

.hero-landing .hero-visual {
  z-index: 1;
  inset: 0 -4% 145px 40%;
  overflow: hidden;
  background:
    radial-gradient(circle at 76% 32%, rgba(112, 229, 220, 0.34) 0 1px, transparent 2px),
    radial-gradient(circle at 86% 56%, rgba(112, 229, 220, 0.26) 0 1px, transparent 2px),
    radial-gradient(circle at 68% 70%, rgba(112, 229, 220, 0.22) 0 1px, transparent 2px),
    radial-gradient(circle at 39% 45%, rgba(40, 201, 189, 0.18), transparent 32%);
  background-size: 84px 84px, 116px 116px, 148px 148px, auto;
}

.hero-landing .hero-visual::before,
.hero-landing .hero-visual::after {
  display: none;
}

.hero-orbit {
  position: absolute;
  z-index: 2;
  top: 7%;
  left: 15%;
  width: clamp(310px, 35vw, 490px);
  aspect-ratio: 1;
  border: 2px solid rgba(112, 229, 220, 0.72);
  border-radius: 50%;
  box-shadow:
    0 0 18px rgba(215, 255, 252, 0.44),
    0 0 34px rgba(75, 225, 214, 0.52),
    0 0 92px rgba(40, 201, 189, 0.3),
    inset 0 0 42px rgba(75, 225, 214, 0.18);
  animation: orbit-breathe 6s ease-in-out infinite;
}

.hero-orbit::before,
.hero-orbit::after,
.hero-orbit span {
  content: "";
  position: absolute;
  border-radius: 50%;
}

.hero-orbit::before {
  inset: -6%;
  background: conic-gradient(from 28deg, transparent 0 10%, rgba(225, 255, 253, 0.94) 18%, rgba(75, 225, 214, 0.34) 25%, transparent 34% 57%, rgba(112, 229, 220, 0.78) 68%, transparent 79%);
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 5px), #000 0);
  mask: radial-gradient(farthest-side, transparent calc(100% - 5px), #000 0);
  filter: drop-shadow(0 0 11px rgba(75, 225, 214, 0.78));
  animation: orbit-spin 18s linear infinite;
}

.hero-orbit::after {
  inset: 9%;
  border: 1px solid rgba(112, 229, 220, 0.34);
  box-shadow: 0 0 24px rgba(40, 201, 189, 0.16), inset 0 0 40px rgba(40, 201, 189, 0.14);
}

.hero-orbit .orbit-strand-a {
  inset: -3%;
  border: 1px solid rgba(214, 255, 252, 0.62);
  box-shadow: 0 0 14px rgba(75, 225, 214, 0.62), inset 0 0 18px rgba(75, 225, 214, 0.28);
  transform: rotate(11deg) scaleX(0.96);
  animation: orbit-strand-a 10s ease-in-out infinite alternate;
}

.hero-orbit .orbit-strand-b {
  inset: 4%;
  border: 2px solid rgba(75, 225, 214, 0.42);
  border-right-color: rgba(225, 255, 253, 0.86);
  border-bottom-color: rgba(75, 225, 214, 0.16);
  box-shadow: 0 0 20px rgba(40, 201, 189, 0.4);
  transform: rotate(-13deg) scaleY(0.95);
  animation: orbit-strand-b 13s ease-in-out infinite alternate;
}

.hero-orbit .orbit-strand-c {
  inset: 22%;
  border: 1px dashed rgba(112, 229, 220, 0.36);
  box-shadow: 0 0 16px rgba(75, 225, 214, 0.22);
  animation: orbit-spin 12s linear infinite reverse;
}

.hero-routes {
  position: absolute;
  z-index: 3;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  filter: drop-shadow(0 0 7px rgba(75, 225, 214, 0.35));
}

.route-bases path,
.route-flows path {
  fill: none;
  vector-effect: non-scaling-stroke;
}

.route-bases path {
  stroke: rgba(112, 229, 220, 0.32);
  stroke-width: 1.15;
}

.route-flows path {
  stroke: rgba(220, 255, 252, 0.94);
  stroke-width: 2.6;
  stroke-linecap: round;
  stroke-dasharray: 3 105;
  animation: route-packet 6.4s linear infinite;
}

.route-flows path:nth-child(2n) { animation-duration: 7.6s; animation-delay: -2.1s; }
.route-flows path:nth-child(3n) { animation-duration: 8.4s; animation-delay: -4.2s; }
.route-flows path:nth-child(5n) { animation-duration: 9.2s; animation-delay: -1.3s; }

.route-nodes circle {
  fill: #d8fffb;
  stroke: var(--accent);
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
  transform-box: fill-box;
  transform-origin: center;
  animation: route-node-pulse 3.2s ease-in-out infinite;
}

.route-nodes circle:nth-child(2n) { animation-delay: -1.4s; }
.route-nodes circle:nth-child(3n) { animation-delay: -2.2s; }

.route-nodes .route-hub {
  fill: var(--accent);
  stroke: #e7fffd;
  stroke-width: 3;
}

.hero-card-stage {
  position: absolute;
  z-index: 6;
  right: 0;
  bottom: 16px;
  left: 0;
}

.hero-card-controls {
  position: absolute;
  right: 0;
  top: -38px;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 10px;
  min-height: 38px;
  margin-bottom: 0;
  color: #8ca5b4;
  font-size: 12px;
  letter-spacing: 0.08em;
}

.hero-card-controls button {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: rgba(3, 20, 38, 0.82);
  color: var(--text);
  cursor: pointer;
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.hero-card-controls button:hover,
.hero-card-controls button:focus-visible {
  border-color: var(--accent-bright);
  background: rgba(12, 72, 82, 0.72);
  transform: translateY(-2px);
}

.hero-card-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: clamp(280px, 24vw, 315px);
  gap: 14px;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 12px 8px 16px;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  cursor: grab;
  touch-action: pan-y;
}

.hero-card-track::-webkit-scrollbar { display: none; }
.hero-card-track.is-dragging { cursor: grabbing; scroll-snap-type: none; }

.hero-service-card {
  min-width: 0;
  min-height: 142px;
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: 24px 22px;
  border: 1px solid rgba(91, 181, 193, 0.32);
  border-radius: 9px;
  scroll-snap-align: center;
  background:
    linear-gradient(145deg, rgba(8, 38, 58, 0.94), rgba(2, 18, 34, 0.84));
  color: var(--body);
  text-align: left;
  box-shadow: 0 20px 44px rgba(0, 0, 0, 0.24);
  cursor: pointer;
  transform: translateY(5px) rotate(-0.5deg) scale(0.985);
  transition: transform 420ms cubic-bezier(0.22, 1, 0.36, 1), border-color 240ms ease, box-shadow 240ms ease, opacity 240ms ease;
}

.hero-service-card:nth-child(2n) { transform: translateY(5px) rotate(0.55deg) scale(0.985); }

.hero-service-card svg {
  width: 48px;
  height: 48px;
  padding: 11px;
  border: 1px solid rgba(75, 225, 214, 0.65);
  border-radius: 50%;
  color: var(--accent-bright);
  filter: drop-shadow(0 0 12px rgba(75, 225, 214, 0.22));
}

.hero-service-card span,
.hero-service-card strong,
.hero-service-card small {
  display: block;
}

.hero-service-card strong {
  margin: 2px 0 8px;
  color: var(--text);
  font-size: 17px;
  line-height: 1.35;
}

.hero-service-card small {
  color: #91a8b6;
  font-size: 13px;
  line-height: 1.65;
}

.hero-service-card:hover,
.hero-service-card:focus-visible,
.hero-service-card.is-active {
  z-index: 2;
  border-color: rgba(75, 225, 214, 0.82);
  box-shadow: 0 24px 56px rgba(0, 0, 0, 0.34), 0 0 28px rgba(40, 201, 189, 0.13);
  transform: translateY(-8px) rotate(0) scale(1.015);
}

.plans-section {
  position: relative;
  padding-block: clamp(72px, 8vw, 108px);
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(circle at 72% 8%, rgba(40, 201, 189, 0.1), transparent 28%),
    #031426;
}

.plans-header {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.7fr);
  gap: 48px;
  align-items: end;
  margin-bottom: 38px;
}

.plans-kicker {
  margin-bottom: 8px;
  color: var(--accent-bright);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.plans-header h2 {
  margin: 0;
  color: var(--text);
  font-size: clamp(36px, 4vw, 48px);
  letter-spacing: -0.04em;
  line-height: 1.18;
}

.plans-snapshot {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

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

.plan-card {
  position: relative;
  min-width: 0;
  display: flex;
  flex-direction: column;
  padding: 27px 24px 24px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: linear-gradient(155deg, rgba(8, 35, 55, 0.94), rgba(2, 16, 31, 0.88));
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.19);
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.plan-card::before {
  content: "";
  position: absolute;
  top: -1px;
  right: 22px;
  left: 22px;
  height: 2px;
  opacity: 0;
  background: linear-gradient(90deg, transparent, var(--accent-bright), transparent);
}

.plan-card:hover,
.plan-card:focus-within {
  border-color: rgba(75, 225, 214, 0.54);
  box-shadow: 0 22px 50px rgba(0, 0, 0, 0.28);
  transform: translateY(-4px);
}

.plan-card.is-selected {
  border-color: rgba(75, 225, 214, 0.72);
  box-shadow: 0 22px 54px rgba(0, 0, 0, 0.28), 0 0 30px rgba(40, 201, 189, 0.11);
}

.plan-card.is-selected::before { opacity: 1; }

.plan-card h3 {
  margin-bottom: 10px;
  color: var(--text);
  font-size: 18px;
  line-height: 1.4;
}

.plan-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 20px;
  color: var(--accent-bright);
  font-variant-numeric: tabular-nums;
}

.plan-price strong {
  font-size: clamp(42px, 4vw, 54px);
  font-weight: 780;
  letter-spacing: -0.045em;
  line-height: 1;
}

.plan-price span {
  font-size: 15px;
  font-weight: 700;
}

.plan-card ul {
  display: grid;
  gap: 10px;
  margin: 0 0 25px;
  padding: 18px 0 0;
  border-top: 1px solid var(--border);
  color: #b8c8d1;
  font-size: 14px;
  line-height: 1.5;
  list-style: none;
}

.plan-card li {
  position: relative;
  padding-left: 17px;
}

.plan-card li::before {
  content: "";
  position: absolute;
  top: 0.65em;
  left: 0;
  width: 7px;
  height: 2px;
  background: var(--accent);
}

.plan-card .button {
  width: 100%;
  margin-top: auto;
}

.plans-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  margin-top: 28px;
  color: var(--muted);
  font-size: 14px;
}

.plans-footer .text-link { margin-top: 0; white-space: nowrap; }

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

@keyframes orbit-breathe {
  0%, 100% { opacity: 0.72; transform: scale(0.985); }
  50% { opacity: 1; transform: scale(1.02); }
}

@keyframes orbit-strand-a {
  from { transform: rotate(7deg) scaleX(0.96); }
  to { transform: rotate(16deg) scaleX(1.02); }
}

@keyframes orbit-strand-b {
  from { transform: rotate(-16deg) scaleY(0.94); }
  to { transform: rotate(-7deg) scaleY(1.02); }
}

@keyframes route-packet {
  to { stroke-dashoffset: -216; }
}

@keyframes route-node-pulse {
  0%, 100% { opacity: 0.62; transform: scale(0.82); }
  50% { opacity: 1; transform: scale(1.2); }
}

.section {
  position: relative;
  padding-block: var(--section);
  border-bottom: 1px solid var(--border);
}

.section-band {
  background: rgba(6, 27, 45, 0.72);
}

.section-strong {
  background:
    radial-gradient(circle at 85% 20%, rgba(24, 106, 122, 0.16), transparent 36%),
    var(--band-strong);
}

.section-head {
  max-width: 780px;
  margin-bottom: clamp(42px, 6vw, 72px);
}

.section-head.centered {
  margin-inline: auto;
  text-align: center;
}

.section h2 {
  margin-bottom: 22px;
  color: var(--text);
  font-size: clamp(34px, 4vw, 44px);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.22;
}

.section h2::after {
  content: "";
  display: block;
  width: 46px;
  height: 3px;
  margin-top: 20px;
  background: var(--accent);
}

.section-head.centered h2::after {
  margin-inline: auto;
}

.section-intro {
  color: #b9c9d3;
  font-size: clamp(18px, 1.8vw, 21px);
  line-height: 1.8;
}

.accent-copy {
  color: var(--accent-bright);
  font-weight: 720;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.96fr) minmax(0, 1.04fr);
  gap: clamp(46px, 8vw, 104px);
  align-items: center;
}

.split.reverse > :first-child {
  order: 2;
}

.copy-block {
  max-width: 650px;
}

.copy-block p {
  margin-bottom: 18px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
  color: var(--accent-bright);
  font-weight: 750;
}

.text-link svg {
  width: 18px;
  height: 18px;
  transition: transform 180ms ease;
}

.text-link:hover svg,
.text-link:focus-visible svg {
  transform: translateX(4px);
}

.route-visual {
  min-height: 330px;
  position: relative;
  overflow: hidden;
  border-left: 1px solid var(--border);
}

.route-visual::before,
.route-visual::after {
  content: "";
  position: absolute;
  left: 11%;
  width: 70%;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--accent-bright));
  transform-origin: left center;
}

.route-visual::before {
  top: 34%;
  transform: rotate(11deg);
}

.route-visual::after {
  top: 59%;
  transform: rotate(-10deg);
}

.route-node {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 11px;
  color: var(--text);
  font-size: 15px;
  font-weight: 700;
}

.route-node::before {
  content: "";
  width: 10px;
  height: 10px;
  border: 2px solid #d9ffff;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 18px rgba(75, 225, 214, 0.65);
}

.route-node:nth-child(1) { top: 18%; left: 16%; }
.route-node:nth-child(2) { top: 39%; right: 10%; }
.route-node:nth-child(3) { top: 66%; right: 18%; }

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

.feature-item {
  min-width: 0;
  padding: 32px clamp(22px, 3vw, 38px);
  border-right: 1px solid var(--border);
}

.feature-item:first-child {
  padding-left: 0;
}

.feature-item:last-child {
  padding-right: 0;
  border-right: 0;
}

.feature-item svg,
.use-case svg {
  width: 34px;
  height: 34px;
  margin-bottom: 22px;
  color: var(--accent-bright);
}

.feature-item h3,
.use-case h3,
.timeline-step h3,
.comparison-row h3 {
  margin-bottom: 10px;
  color: var(--text);
  font-size: 19px;
  font-weight: 760;
  line-height: 1.42;
}

.feature-item p,
.use-case p,
.timeline-step p,
.comparison-row p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.72;
}

.use-case-grid {
  display: grid;
  grid-template-columns: repeat(var(--columns, 4), minmax(0, 1fr));
  gap: 0;
}

.use-case {
  padding: 20px clamp(22px, 3vw, 34px) 24px;
  border-left: 1px solid var(--border);
}

.use-case:first-child {
  padding-left: 0;
  border-left: 0;
}

.use-case:last-child {
  padding-right: 0;
}

.boundary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 26px;
  padding: clamp(28px, 4vw, 44px);
  border: 1px solid var(--border-strong);
  background: rgba(2, 16, 31, 0.56);
}

.boundary > svg {
  width: 44px;
  height: 44px;
  color: var(--accent-bright);
}

.boundary h2,
.boundary h3 {
  margin-bottom: 15px;
  color: var(--text);
  font-size: clamp(25px, 3vw, 34px);
  line-height: 1.3;
}

.boundary h2::after,
.boundary h3::after {
  display: none;
}

.boundary ul {
  margin-bottom: 0;
  padding-left: 1.25em;
}

.boundary li + li {
  margin-top: 7px;
}

.timeline {
  counter-reset: steps;
  display: grid;
  grid-template-columns: repeat(var(--columns, 3), minmax(0, 1fr));
}

.timeline-step {
  position: relative;
  padding: 82px clamp(18px, 3vw, 38px) 10px 0;
  counter-increment: steps;
}

.timeline-step::before {
  content: counter(steps, decimal-leading-zero);
  position: absolute;
  top: 0;
  left: 0;
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  color: var(--accent-bright);
  font-size: 18px;
  font-weight: 800;
}

.timeline-step::after {
  content: "";
  position: absolute;
  top: 27px;
  left: 54px;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), rgba(40, 201, 189, 0.2));
}

.timeline-step:last-child::after {
  display: none;
}

.comparison {
  border-top: 1px solid var(--border);
}

.comparison-head,
.comparison-row {
  display: grid;
  grid-template-columns: 0.7fr 1.15fr 1.15fr;
  gap: 0;
  border-bottom: 1px solid var(--border);
}

.comparison-head > div,
.comparison-row > div {
  padding: 24px 28px;
  border-right: 1px solid var(--border);
}

.comparison-head > div:first-child,
.comparison-row > div:first-child {
  padding-left: 0;
}

.comparison-head > div:last-child,
.comparison-row > div:last-child {
  padding-right: 0;
  border-right: 0;
}

.comparison-head {
  color: var(--text);
  font-size: 18px;
  font-weight: 760;
}

.comparison-head .accent-copy {
  color: var(--accent-bright);
}

.comparison-label {
  color: var(--accent-bright);
  font-weight: 760;
}

.plain-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.plain-list li {
  position: relative;
  padding-left: 22px;
}

.plain-list li::before {
  content: "";
  position: absolute;
  top: 0.75em;
  left: 0;
  width: 8px;
  height: 2px;
  background: var(--accent);
}

.cta-section {
  position: relative;
  overflow: hidden;
  padding-block: clamp(76px, 9vw, 116px);
  text-align: center;
  background:
    linear-gradient(180deg, rgba(7, 34, 56, 0.82), rgba(2, 17, 31, 0.94)),
    url("/assets/seo/network-world.webp") center 47% / cover no-repeat;
}

.cta-section::before,
.cta-section::after {
  content: "";
  position: absolute;
  left: -10%;
  width: 120%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.cta-section::before { top: 0; }
.cta-section::after { bottom: 0; }

.cta-content {
  position: relative;
  z-index: 2;
  max-width: 780px;
  margin-inline: auto;
}

.cta-content h2 {
  margin-bottom: 18px;
  color: var(--text);
  font-size: clamp(34px, 4vw, 44px);
  letter-spacing: -0.035em;
  line-height: 1.24;
}

.cta-content p {
  margin-bottom: 32px;
  color: #b9cad4;
  font-size: 18px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}

.breadcrumb {
  padding-block: 18px;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumb li:not(:last-child)::after {
  content: "/";
  margin-left: 8px;
  color: #5f7888;
}

.breadcrumb a:hover,
.breadcrumb a:focus-visible {
  color: var(--accent-bright);
}

.legal-page {
  padding-block: clamp(60px, 8vw, 100px);
}

.legal-wrap {
  width: min(100% - (var(--gutter) * 2), 900px);
  margin-inline: auto;
}

.legal-wrap h1 {
  margin-bottom: 20px;
  color: var(--text);
  font-size: clamp(40px, 5vw, 58px);
  line-height: 1.18;
}

.legal-meta {
  margin-bottom: 48px;
  color: var(--muted);
  font-size: 15px;
}

.legal-wrap h2 {
  margin-top: 48px;
  margin-bottom: 14px;
  color: var(--text);
  font-size: 26px;
}

.legal-wrap h2::after {
  display: none;
}

.legal-wrap a {
  color: var(--accent-bright);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-deep);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(240px, 1.25fr) minmax(0, 0.75fr) minmax(0, 0.75fr) minmax(260px, 1fr);
  gap: 40px;
  padding-block: 54px 38px;
}

.footer-brand {
  margin-bottom: 14px;
  color: var(--text);
  font-size: 20px;
  font-weight: 800;
}

.footer-copy,
.trademark-note {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.75;
}

.footer-heading {
  margin-bottom: 13px;
  color: var(--text);
  font-size: 14px;
  font-weight: 760;
}

.footer-links {
  display: grid;
  gap: 9px;
  font-size: 14px;
}

.footer-links a {
  color: #aebfc9;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--accent-bright);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-block: 22px 28px;
  border-top: 1px solid var(--border);
  color: #7f96a5;
  font-size: 12px;
}

@media (max-width: 1080px) {
  .nav-shell {
    flex-wrap: wrap;
    gap: 0 24px;
    padding-block: 14px;
  }

  .primary-nav {
    order: 3;
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    scrollbar-width: thin;
  }

  .primary-nav a {
    padding-block: 14px 10px;
  }

  .primary-nav a::after {
    bottom: 5px;
  }

  .nav-actions {
    margin-left: auto;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 0.98fr) minmax(390px, 1.02fr);
  }

  .feature-rail,
  .use-case-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .feature-item,
  .use-case {
    border-bottom: 1px solid var(--border);
  }

  .feature-item:nth-child(2n),
  .use-case:nth-child(2n) {
    border-right: 0;
  }

  .feature-item:nth-last-child(-n + 2),
  .use-case:nth-last-child(-n + 2) {
    border-bottom: 0;
  }

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

@media (max-width: 820px) {
  body {
    font-size: 16px;
  }

  .nav-actions .button {
    min-height: 44px;
    padding: 10px 14px;
    font-size: 13px;
  }

  .nav-login {
    display: none;
  }

  .hero {
    min-height: auto;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    padding-block: 74px 320px;
  }

  .hero h1 {
    font-size: clamp(42px, 8vw, 56px);
  }

  .hero-visual {
    inset: auto -18% 0 -10%;
    height: 350px;
    background-position: 64% center;
  }

  .hero-visual::before {
    background: linear-gradient(180deg, var(--bg) 0%, transparent 40%);
  }

  .split,
  .split.reverse {
    grid-template-columns: 1fr;
  }

  .split.reverse > :first-child {
    order: initial;
  }

  .route-visual {
    min-height: 280px;
    border-top: 1px solid var(--border);
    border-left: 0;
  }

  .feature-rail,
  .use-case-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 36px 0;
  }

  .timeline-step:nth-child(2n)::after {
    display: none;
  }

  .comparison-head,
  .comparison-row {
    grid-template-columns: 0.8fr 1fr 1fr;
  }

  .comparison-head > div,
  .comparison-row > div {
    padding: 18px 16px;
  }

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

@media (max-width: 620px) {
  :root {
    --section: 72px;
  }

  .nav-shell {
    min-height: 68px;
  }

  .brand {
    font-size: 18px;
  }

  .nav-actions {
    gap: 8px;
  }

  .nav-actions .button {
    padding-inline: 11px;
  }

  .primary-nav {
    gap: 20px;
  }

  .primary-nav a {
    font-size: 13px;
  }

  .hero-grid {
    padding-block: 62px 252px;
  }

  .hero h1 {
    font-size: clamp(38px, 11vw, 46px);
    letter-spacing: -0.04em;
  }

  .hero-lead {
    font-size: 17px;
  }

  .hero-actions,
  .cta-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .hero-visual {
    height: 280px;
  }

  .section h2,
  .cta-content h2 {
    font-size: 32px;
  }

  .feature-rail,
  .use-case-grid,
  .timeline {
    grid-template-columns: 1fr;
  }

  .feature-item,
  .use-case,
  .feature-item:first-child,
  .feature-item:last-child,
  .use-case:first-child,
  .use-case:last-child {
    padding: 26px 0;
    border-right: 0;
    border-bottom: 1px solid var(--border);
    border-left: 0;
  }

  .feature-item:last-child,
  .use-case:last-child {
    border-bottom: 0;
  }

  .timeline {
    gap: 26px;
  }

  .timeline-step {
    padding: 0 0 0 74px;
    min-height: 60px;
  }

  .timeline-step::before {
    top: 0;
  }

  .timeline-step::after {
    top: 54px;
    bottom: -26px;
    left: 27px;
    right: auto;
    width: 1px;
    height: auto;
    background: linear-gradient(180deg, var(--accent), rgba(40, 201, 189, 0.2));
  }

  .timeline-step:nth-child(2n)::after {
    display: block;
  }

  .timeline-step:last-child::after {
    display: none;
  }

  .comparison {
    display: grid;
    gap: 22px;
    border-top: 0;
  }

  .comparison-head {
    display: none;
  }

  .comparison-row {
    display: grid;
    grid-template-columns: 1fr;
    border: 1px solid var(--border);
  }

  .comparison-row > div,
  .comparison-row > div:first-child,
  .comparison-row > div:last-child {
    padding: 17px 20px;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .comparison-row > div:last-child {
    border-bottom: 0;
  }

  .comparison-row > div:nth-child(2)::before,
  .comparison-row > div:nth-child(3)::before {
    display: block;
    margin-bottom: 6px;
    color: var(--accent-bright);
    font-size: 12px;
    font-weight: 760;
    letter-spacing: 0.08em;
  }

  .comparison-row > div:nth-child(2)::before { content: "IEPL 专线架构"; }
  .comparison-row > div:nth-child(3)::before { content: "普通共享线路"; }

  .boundary {
    grid-template-columns: 1fr;
    padding: 25px 22px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-bottom {
    display: grid;
  }
}

@media (max-width: 1080px) {
  .hero-landing .hero-grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(340px, 0.82fr);
  }

  .hero-landing h1 {
    font-size: clamp(46px, 5.5vw, 58px);
  }

  .hero-landing .hero-visual {
    left: 40%;
  }

  .hero-card-track {
    grid-auto-columns: minmax(250px, 1fr);
  }

  .plan-card {
    padding-inline: 20px;
  }
}

@media (max-width: 820px) {
  .landing-page .hero-landing {
    min-height: 920px;
  }

  .landing-page .hero-landing .hero-grid {
    grid-template-columns: 1fr;
    align-items: start;
    padding-block: 62px 520px;
  }

  .hero-landing .hero-copy {
    max-width: 620px;
  }

  .hero-landing h1 {
    max-width: 610px;
    font-size: clamp(43px, 7.4vw, 54px);
  }

  .hero-landing .hero-lead {
    max-width: 560px;
  }

  .hero-landing .hero-visual {
    inset: 310px -14% 165px -2%;
    height: auto;
  }

  .hero-orbit {
    top: 4%;
    left: 43%;
    width: clamp(250px, 48vw, 360px);
  }

  .hero-card-track {
    grid-auto-columns: min(72vw, 310px);
  }

  .plans-header {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .plans-snapshot {
    max-width: 650px;
  }

  .plan-deck {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .landing-page .site-header {
    position: relative;
  }

  .landing-page .hero-landing {
    min-height: 980px;
  }

  .landing-page .hero-landing .hero-grid {
    padding-block: 48px 610px;
  }

  .hero-landing h1 {
    font-size: clamp(38px, 10.6vw, 44px);
    line-height: 1.1;
  }

  .hero-landing .hero-lead {
    margin-bottom: 24px;
    font-size: 16px;
    line-height: 1.7;
  }

  .hero-landing .hero-visual {
    inset: 390px -40% 210px -24%;
  }

  .hero-orbit {
    top: 4%;
    left: 39%;
    width: min(72vw, 290px);
  }

  .hero-routes {
    opacity: 0.82;
  }

  .hero-card-stage {
    bottom: 14px;
  }

  .hero-card-controls {
    justify-content: center;
  }

  .hero-card-track {
    grid-auto-columns: min(82vw, 300px);
    padding-inline: 3px;
  }

  .hero-service-card {
    min-height: 136px;
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 14px;
    padding: 21px 18px;
  }

  .hero-service-card svg {
    width: 42px;
    height: 42px;
    padding: 9px;
  }

  .plans-section {
    padding-block: 68px;
  }

  .plans-header h2 {
    font-size: 34px;
  }

  .plan-deck {
    grid-template-columns: 1fr;
  }

  .plan-card {
    padding: 25px 22px 22px;
  }

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

  .plans-footer .text-link {
    white-space: normal;
  }
}

/* Light editorial landing page, inspired by the restraint of modern product stores. */
html.landing-root {
  color-scheme: light;
  background: #f5f5f7;
}

body.landing-page {
  color-scheme: light;
  --bg: #ffffff;
  --bg-deep: #ffffff;
  --band: #ffffff;
  --band-strong: #f5f5f7;
  --text: #1d1d1f;
  --body: #424245;
  --muted: #6e6e73;
  --accent: #0f948c;
  --accent-bright: #18a89e;
  --accent-dark: #007c75;
  --border: rgba(29, 29, 31, 0.11);
  --border-strong: rgba(0, 124, 117, 0.34);
  --shadow: 2px 4px 12px rgba(0, 0, 0, 0.08);
  background: #f5f5f7;
  color: var(--body);
}

.landing-page .site-header {
  min-height: 56px;
  border-bottom: 1px solid rgba(29, 29, 31, 0.1);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: saturate(180%) blur(18px);
}

.landing-page .nav-shell {
  min-height: 56px;
}

.landing-page .brand,
.landing-page .primary-nav a,
.landing-page .nav-login {
  color: var(--text);
}

.landing-page .brand {
  font-size: 18px;
  font-weight: 700;
}

.landing-page .primary-nav a {
  padding-block: 18px 16px;
  font-size: 13px;
  font-weight: 500;
}

.landing-page .primary-nav a::after {
  bottom: 9px;
  height: 1px;
}

.landing-page .nav-actions .button {
  min-height: 38px;
  padding: 9px 15px;
  border-radius: 9px;
  font-size: 13px;
}

.landing-page .button {
  min-height: 46px;
  border-radius: 10px;
  box-shadow: none;
  font-weight: 650;
  transition: transform 220ms cubic-bezier(0, 0, 0.5, 1), background 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.landing-page .button:hover,
.landing-page .button:focus-visible {
  transform: translateY(-1px);
}

.landing-page .button-primary {
  background: var(--accent-dark);
  color: #ffffff;
}

.landing-page .button-primary:hover,
.landing-page .button-primary:focus-visible {
  background: #006b65;
}

.landing-page .button-secondary {
  border-color: rgba(0, 124, 117, 0.52);
  background: #ffffff;
  color: var(--accent-dark);
}

.landing-page .button-secondary:hover,
.landing-page .button-secondary:focus-visible {
  border-color: var(--accent-dark);
  background: #f0fbfa;
}

.landing-page .hero-landing {
  min-height: 590px;
  border-bottom: 0;
  background: #ffffff;
}

.landing-page .hero-landing::before {
  display: none;
}

.landing-page .hero-landing::after {
  z-index: 2;
  height: 180px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0), #ffffff 82%);
}

.landing-page .hero-landing .hero-grid {
  grid-template-columns: minmax(0, 0.95fr) minmax(430px, 1.05fr);
  gap: 32px;
  padding-block: 56px 194px;
}

.landing-page .hero-landing .hero-copy {
  max-width: 590px;
}

.landing-page .hero-landing h1 {
  max-width: 540px;
  margin-bottom: 16px;
  color: var(--text);
  font-size: clamp(40px, 4vw, 50px);
  font-weight: 650;
  letter-spacing: -0.035em;
  line-height: 1.16;
}

.landing-page .hero-landing .hero-lead {
  max-width: 520px;
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.65;
}

.landing-page .hero-landing .hero-visual {
  inset: 0 -4% 138px 43%;
  background:
    radial-gradient(circle at 76% 32%, rgba(15, 148, 140, 0.18) 0 1px, transparent 2px),
    radial-gradient(circle at 86% 56%, rgba(15, 148, 140, 0.14) 0 1px, transparent 2px),
    radial-gradient(circle at 68% 70%, rgba(15, 148, 140, 0.12) 0 1px, transparent 2px),
    radial-gradient(circle at 39% 45%, rgba(66, 207, 196, 0.09), transparent 32%);
  background-size: 84px 84px, 116px 116px, 148px 148px, auto;
}

.landing-page .hero-orbit {
  top: 9%;
  left: 17%;
  width: clamp(300px, 32vw, 440px);
  border: 1px solid rgba(15, 148, 140, 0.24);
  box-shadow: none;
  opacity: 0.82;
  animation-name: landing-orbit-breathe;
}

.landing-page .hero-orbit::before {
  background: conic-gradient(from 28deg, transparent 0 12%, rgba(15, 148, 140, 0.55) 20%, rgba(66, 207, 196, 0.16) 28%, transparent 36% 61%, rgba(15, 148, 140, 0.38) 70%, transparent 81%);
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 2px), #000 0);
  mask: radial-gradient(farthest-side, transparent calc(100% - 2px), #000 0);
  filter: none;
}

.landing-page .hero-orbit::after {
  inset: 11%;
  border-color: rgba(15, 148, 140, 0.14);
  box-shadow: none;
}

.landing-page .hero-orbit .orbit-strand-a {
  border-color: rgba(15, 148, 140, 0.22);
  box-shadow: none;
}

.landing-page .hero-orbit .orbit-strand-b {
  border-width: 1px;
  border-color: rgba(66, 207, 196, 0.14);
  border-right-color: rgba(15, 148, 140, 0.36);
  box-shadow: none;
}

.landing-page .hero-orbit .orbit-strand-c {
  border-color: rgba(15, 148, 140, 0.16);
  box-shadow: none;
}

.landing-page .hero-routes {
  filter: none;
  opacity: 0.74;
}

.landing-page .route-bases path {
  stroke: rgba(15, 148, 140, 0.18);
  stroke-width: 1;
}

.landing-page .route-flows path {
  stroke: rgba(15, 148, 140, 0.72);
  stroke-width: 2;
}

.landing-page .route-nodes circle {
  fill: #ffffff;
  stroke: var(--accent);
  stroke-width: 1.4;
  animation-name: landing-node-pulse;
}

.landing-page .route-nodes .route-hub {
  fill: #e8f7f5;
  stroke: var(--accent);
  stroke-width: 2;
}

.landing-page .hero-card-stage {
  bottom: 12px;
}

.landing-page .hero-card-controls,
.landing-page .shelf-controls {
  color: var(--muted);
}

.landing-page .hero-card-controls button,
.landing-page .shelf-controls button {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: #e8e8ed;
  color: var(--text);
  cursor: pointer;
  transition: background 220ms ease, transform 220ms cubic-bezier(0, 0, 0.5, 1), opacity 220ms ease;
}

.landing-page .hero-card-controls button:hover,
.landing-page .hero-card-controls button:focus-visible,
.landing-page .shelf-controls button:hover,
.landing-page .shelf-controls button:focus-visible {
  border-color: transparent;
  background: #dcdce1;
  transform: translateY(-1px);
}

.landing-page .shelf-controls button:disabled {
  opacity: 0.34;
  cursor: default;
  transform: none;
}

.landing-page .hero-card-track {
  grid-auto-columns: clamp(348px, 25vw, 380px);
  gap: 24px;
  padding: 10px 8px 24px;
}

.landing-page .hero-service-card {
  min-height: 184px;
  grid-template-columns: 68px minmax(0, 1fr);
  gap: 24px;
  padding: 32px 30px;
  border: 0;
  border-radius: 22px;
  background: #ffffff;
  color: var(--body);
  box-shadow: 0 24px 62px rgba(19, 36, 44, 0.1);
  transform: none;
}

.landing-page .hero-service-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 22px;
  left: 22px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  opacity: 0;
  background: var(--accent);
  transition: opacity 220ms ease;
}

.landing-page .hero-service-card svg {
  width: 68px;
  height: 68px;
  padding: 15px;
  border: 0;
  background: #e8f7f5;
  color: var(--accent-dark);
  filter: none;
}

.landing-page .hero-service-card strong {
  color: var(--text);
  font-size: clamp(1.3rem, 1.7vw, 1.58rem);
  line-height: 1.24;
}

.landing-page .hero-service-card small {
  color: var(--muted);
  max-width: 240px;
  margin-top: 12px;
  font-size: 1rem;
  line-height: 1.78;
}

.landing-page .hero-service-card:hover,
.landing-page .hero-service-card:focus-visible,
.landing-page .hero-service-card.is-active {
  border-color: transparent;
  box-shadow: 0 28px 72px rgba(0, 55, 52, 0.14);
  transform: translateY(-4px);
}

.landing-page .hero-service-card.is-active::before {
  opacity: 1;
}

.landing-page .plans-section {
  padding-block: 82px;
  border: 0;
  background: #f5f5f7;
}

.landing-page .plans-header {
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: end;
  margin-bottom: 32px;
}

.landing-page .plans-copy {
  max-width: 560px;
}

.landing-page .plans-header h2,
.landing-page .shelf-heading h2 {
  margin: 0;
  color: var(--text);
  font-size: clamp(28px, 2.8vw, 34px);
  font-weight: 650;
  letter-spacing: -0.035em;
  line-height: 1.2;
}

.landing-page .plans-snapshot {
  margin-top: 9px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.landing-page .shelf-controls {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

.landing-page .plan-deck,
.landing-page .solution-shelf {
  display: grid;
  grid-auto-flow: column;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  cursor: grab;
  touch-action: pan-y;
}

.landing-page .plan-deck::-webkit-scrollbar,
.landing-page .solution-shelf::-webkit-scrollbar {
  display: none;
}

.landing-page .plan-deck.is-dragging,
.landing-page .solution-shelf.is-dragging {
  cursor: grabbing;
  scroll-snap-type: none;
}

.landing-page .plan-deck {
  grid-template-columns: none;
  grid-auto-columns: 320px;
  align-items: start;
  gap: 18px;
  padding: 4px 4px 20px;
}

.landing-page .plan-card {
  min-height: 0;
  padding: 28px 28px 24px;
  border: 0;
  border-radius: 18px;
  scroll-snap-align: start;
  background: #ffffff;
  box-shadow: var(--shadow);
  transform: none;
  cursor: pointer;
}

.landing-page .plan-card::before {
  top: 0;
  right: 0;
  left: 0;
  height: 3px;
  border-radius: 18px 18px 0 0;
  background: var(--accent);
}

.landing-page .plan-card:hover,
.landing-page .plan-card:focus-within {
  border-color: transparent;
  box-shadow: 2px 8px 22px rgba(0, 55, 52, 0.11);
  transform: translateY(-4px);
}

.landing-page .plan-card.is-selected {
  border-color: transparent;
  background: #e8f7f5;
  box-shadow: var(--shadow);
}

.landing-page .plan-card.is-selected::before {
  opacity: 1;
}

.landing-page .plan-card.is-selected .button {
  border-color: var(--accent-dark);
  background: var(--accent-dark);
  color: #ffffff;
}

.landing-page .plan-card h3 {
  color: var(--text);
  font-weight: 600;
}

.landing-page .plan-price {
  color: var(--accent-dark);
  margin-bottom: 14px;
}

.landing-page .plan-price strong {
  color: var(--text);
  font-size: 48px;
  font-weight: 650;
}

.landing-page .plan-card-intro {
  min-height: 0;
  margin-bottom: 18px;
  color: var(--body);
  font-size: 14px;
  line-height: 1.65;
}

.landing-page .plan-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
  padding: 16px 0;
  border-top: 1px solid rgba(29, 29, 31, 0.12);
  border-bottom: 1px solid rgba(29, 29, 31, 0.12);
}

.landing-page .plan-metrics > div {
  min-width: 0;
}

.landing-page .plan-metrics > div + div {
  padding-left: 18px;
  border-left: 1px solid rgba(29, 29, 31, 0.12);
}

.landing-page .plan-metrics dt {
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}

.landing-page .plan-metrics dd {
  margin: 0;
  color: var(--text);
  font-size: 17px;
  font-weight: 620;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  line-height: 1.35;
}

.landing-page .plan-position {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.landing-page .plan-position strong {
  color: var(--body);
  font-weight: 600;
}

.landing-page .plan-note {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.landing-page .plan-card .button {
  margin-top: 18px;
}

.landing-page .plans-footer,
.landing-page .plans-footer .text-link {
  color: var(--muted);
}

.landing-page .text-link,
.landing-page .solution-link {
  color: var(--accent-dark);
}

.landing-page .section {
  padding-block: 88px;
  border: 0;
  background: #ffffff;
}

.landing-page .clean-shelf-section {
  border-top: 1px solid rgba(29, 29, 31, 0.08);
  background: #f5f5f7;
}

.landing-page .shelf-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 32px;
}

.landing-page .section h2::after {
  display: none;
}

.landing-page .solution-shelf {
  grid-auto-columns: 400px;
  gap: 20px;
  padding: 4px 4px 20px;
}

.landing-page .solution-card {
  min-height: 310px;
  display: flex;
  flex-direction: column;
  padding: 32px;
  border-radius: 18px;
  scroll-snap-align: start;
  background: #ffffff;
  color: var(--body);
  box-shadow: var(--shadow);
  transition: transform 300ms cubic-bezier(0, 0, 0.5, 1), box-shadow 300ms cubic-bezier(0, 0, 0.5, 1);
}

.landing-page .solution-card:hover,
.landing-page .solution-card:focus-visible {
  box-shadow: 2px 8px 22px rgba(0, 55, 52, 0.11);
  transform: translateY(-4px);
}

.landing-page .solution-card svg {
  width: 50px;
  height: 50px;
  margin: 22px 0 28px;
  padding: 12px;
  border-radius: 50%;
  background: #e8f7f5;
  color: var(--accent-dark);
}

.landing-page .solution-eyebrow {
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.landing-page .solution-card h3 {
  margin-bottom: 10px;
  color: var(--text);
  font-size: 24px;
  font-weight: 620;
  letter-spacing: -0.02em;
}

.landing-page .solution-card p {
  margin-bottom: 24px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.landing-page .solution-link {
  margin-top: auto;
  font-size: 14px;
  font-weight: 600;
}

.landing-page .section-soft {
  background: #ffffff;
}

.landing-page .clean-facts,
.landing-page .choice-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid rgba(29, 29, 31, 0.12);
  border-bottom: 1px solid rgba(29, 29, 31, 0.12);
}

.landing-page .clean-facts article,
.landing-page .choice-grid article {
  min-width: 0;
  padding: 34px 34px 36px;
  border-right: 1px solid rgba(29, 29, 31, 0.12);
}

.landing-page .clean-facts article:first-child,
.landing-page .choice-grid article:first-child {
  padding-left: 0;
}

.landing-page .clean-facts article:last-child,
.landing-page .choice-grid article:last-child {
  padding-right: 0;
  border-right: 0;
}

.landing-page .clean-facts strong {
  display: block;
  min-height: 50px;
  margin-bottom: 18px;
  color: var(--accent-dark);
  font-size: clamp(28px, 3.4vw, 44px);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.1;
}

.landing-page .clean-facts h3,
.landing-page .choice-grid h3 {
  margin-bottom: 8px;
  color: var(--text);
  font-size: 19px;
  font-weight: 600;
}

.landing-page .clean-facts p,
.landing-page .choice-grid p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.landing-page #standards {
  background: #f5f5f7;
}

.landing-page .choice-grid {
  border-color: rgba(29, 29, 31, 0.1);
}

.landing-page .choice-grid article > span {
  display: block;
  margin-bottom: 42px;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 650;
}

.landing-page .cta-section {
  padding-block: 82px;
  background: #e8f7f5;
}

.landing-page .cta-section::before,
.landing-page .cta-section::after {
  display: none;
}

.landing-page .cta-content h2 {
  color: var(--text);
  font-size: clamp(28px, 2.8vw, 34px);
  font-weight: 650;
}

.landing-page .cta-content p {
  color: var(--muted);
}

.landing-page .site-footer {
  border-color: rgba(29, 29, 31, 0.1);
  background: #f5f5f7;
}

.landing-page .footer-brand,
.landing-page .footer-heading {
  color: var(--text);
}

.landing-page .footer-copy,
.landing-page .trademark-note,
.landing-page .footer-links a,
.landing-page .footer-bottom {
  color: var(--muted);
}

.landing-page .footer-bottom {
  border-color: rgba(29, 29, 31, 0.1);
}

@keyframes landing-orbit-breathe {
  0%, 100% { opacity: 0.64; transform: scale(0.99); }
  50% { opacity: 0.84; transform: scale(1.01); }
}

@keyframes landing-node-pulse {
  0%, 100% { opacity: 0.62; transform: scale(0.94); }
  50% { opacity: 1; transform: scale(1.08); }
}

@media (max-width: 1080px) {
  .landing-page .hero-landing .hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(360px, 0.9fr);
  }

  .landing-page .plans-header { grid-template-columns: minmax(0, 1fr) auto; }
}

@media (max-width: 820px) {
  .landing-page .nav-shell {
    flex-wrap: nowrap;
    padding-block: 0;
  }

  .landing-page .primary-nav {
    display: none;
  }

  .landing-page .nav-login {
    display: inline-flex;
    font-size: 13px;
  }

  .landing-page .hero-landing {
    min-height: 700px;
  }

  .landing-page .hero-landing .hero-grid {
    grid-template-columns: 1fr;
    padding-block: 40px 370px;
  }

  .landing-page .hero-landing h1 {
    max-width: 520px;
    font-size: clamp(34px, 6.5vw, 42px);
  }

  .landing-page .hero-landing .hero-visual {
    inset: 255px -15% 140px 5%;
  }

  .landing-page .hero-orbit {
    top: 5%;
    left: 35%;
    width: min(48vw, 330px);
  }

  .landing-page .plans-header {
    grid-template-columns: 1fr auto;
  }

  .landing-page .plan-deck {
    grid-template-columns: none;
    grid-auto-columns: min(76vw, 330px);
  }

  .landing-page .solution-shelf {
    grid-auto-columns: min(76vw, 380px);
  }

  .landing-page .clean-facts,
  .landing-page .choice-grid {
    grid-template-columns: 1fr;
  }

  .landing-page .clean-facts article,
  .landing-page .clean-facts article:first-child,
  .landing-page .clean-facts article:last-child,
  .landing-page .choice-grid article,
  .landing-page .choice-grid article:first-child,
  .landing-page .choice-grid article:last-child {
    padding: 28px 0;
    border-right: 0;
    border-bottom: 1px solid rgba(29, 29, 31, 0.1);
  }

  .landing-page .clean-facts article:last-child,
  .landing-page .choice-grid article:last-child {
    border-bottom: 0;
  }

  .landing-page .clean-facts strong {
    min-height: 0;
  }
}

@media (max-width: 620px) {
  .landing-page .nav-shell {
    min-height: 54px;
    gap: 10px;
  }

  .landing-page .brand {
    font-size: 15px;
  }

  .landing-page .nav-actions {
    gap: 8px;
  }

  .landing-page .nav-actions .button {
    min-height: 36px;
    padding-inline: 13px;
  }

  .landing-page .hero-landing {
    min-height: 660px;
  }

  .landing-page .hero-landing .hero-grid {
    padding-block: 34px 350px;
  }

  .landing-page .hero-landing h1 {
    max-width: 340px;
    font-size: clamp(30px, 9vw, 36px);
  }

  .landing-page .hero-landing .hero-lead {
    max-width: 390px;
    margin-bottom: 20px;
    font-size: 15px;
  }

  .landing-page .hero-landing .hero-visual {
    inset: 265px -28% 140px -8%;
  }

  .landing-page .hero-orbit {
    left: 37%;
    width: min(58vw, 230px);
  }

  .landing-page .hero-card-controls {
    right: 4px;
    top: -42px;
    justify-content: flex-end;
  }

  .landing-page .hero-card-track {
    grid-auto-columns: min(86vw, 340px);
  }

  .landing-page .hero-service-card {
    min-height: 166px;
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 18px;
    padding: 24px 22px;
    border-radius: 20px;
  }

  .landing-page .hero-service-card svg {
    width: 56px;
    height: 56px;
    padding: 12px;
  }

  .landing-page .hero-service-card strong {
    font-size: 1.22rem;
  }

  .landing-page .hero-service-card small {
    max-width: 220px;
    font-size: 0.95rem;
    line-height: 1.64;
  }

  .landing-page .plans-section,
  .landing-page .section,
  .landing-page .cta-section {
    padding-block: 68px;
  }

  .landing-page .plans-header h2,
  .landing-page .shelf-heading h2,
  .landing-page .cta-content h2 {
    font-size: 28px;
  }

  .landing-page .plans-header {
    gap: 14px;
  }

  .landing-page .plan-deck {
    grid-template-columns: none;
    grid-auto-columns: min(84vw, 322px);
  }

  .landing-page .plan-card {
    min-height: 0;
  }

  .landing-page .solution-shelf {
    grid-auto-columns: min(86vw, 360px);
  }

  .landing-page .solution-card {
    min-height: 294px;
    padding: 28px;
  }
}

/* SEO UI v1.1: one light product system across the overview and detail pages. */
html.service-root {
  color-scheme: light;
  background: #f5f5f7;
}

body.service-site {
  color-scheme: light;
  --bg: #ffffff;
  --bg-deep: #ffffff;
  --band: #f5f5f7;
  --band-strong: #f5f5f7;
  --text: #1d1d1f;
  --body: #424245;
  --muted: #6e6e73;
  --accent: #0f948c;
  --accent-bright: #18a89e;
  --accent-dark: #007c75;
  --border: rgba(29, 29, 31, 0.11);
  --border-strong: rgba(0, 124, 117, 0.32);
  --shadow: 2px 4px 14px rgba(0, 0, 0, 0.075);
  background: #ffffff;
  color: var(--body);
}

.service-site [id] {
  scroll-margin-top: 90px;
}

.service-site .site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  min-height: 60px;
  border-bottom: 1px solid rgba(29, 29, 31, 0.1);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: none;
  backdrop-filter: saturate(180%) blur(18px);
}

.service-site .nav-shell {
  min-height: 60px;
  gap: clamp(16px, 2vw, 26px);
}

.service-site .brand {
  color: var(--text);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.025em;
}

.service-site .primary-nav {
  min-width: 0;
  gap: clamp(12px, 1.45vw, 22px);
}

.service-site .primary-nav a {
  padding: 20px 0 18px;
  color: #4d4d51;
  font-size: 12.5px;
  font-weight: 520;
  letter-spacing: -0.005em;
}

.service-site .primary-nav a::after {
  bottom: 10px;
  height: 2px;
  border-radius: 999px;
  background: var(--accent-dark);
}

.service-site .primary-nav a:hover,
.service-site .primary-nav a:focus-visible,
.service-site .primary-nav a[aria-current="page"] {
  color: var(--text);
}

.service-site .primary-nav a[aria-current="page"] {
  font-weight: 680;
}

.service-site .nav-actions {
  gap: 10px;
}

.service-site .nav-toggle {
  display: none;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid rgba(29, 29, 31, 0.12);
  border-radius: 999px;
  background: #ffffff;
  color: var(--accent-dark);
  font: 650 13px/1 var(--font);
  cursor: pointer;
  transition: border-color 180ms ease, background 180ms ease, color 180ms ease;
}

.service-site .nav-toggle:hover,
.service-site .nav-toggle:focus-visible,
.service-site .nav-toggle[aria-expanded="true"] {
  border-color: rgba(0, 124, 117, 0.42);
  background: #f4fbfa;
}

.service-site .nav-toggle-icon {
  width: 7px;
  height: 7px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
  transition: transform 180ms ease;
}

.service-site .nav-toggle[aria-expanded="true"] .nav-toggle-icon {
  transform: translateY(2px) rotate(225deg);
}

.service-site .nav-login {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  padding: 7px 2px;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 620;
}

.service-site .button,
.service-site .nav-actions .button {
  min-height: 44px;
  padding: 11px 19px;
  border-radius: 10px;
  box-shadow: none;
  font-size: 14px;
  font-weight: 650;
  transition: transform 220ms cubic-bezier(0, 0, 0.5, 1), background 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.service-site .nav-actions .button {
  min-height: 38px;
  padding: 8px 14px;
  font-size: 13px;
}

.service-site .button:hover,
.service-site .button:focus-visible {
  transform: translateY(-1px);
}

.service-site .button-primary {
  background: var(--accent-dark);
  color: #ffffff;
}

.service-site .button-primary:hover,
.service-site .button-primary:focus-visible {
  background: #006b65;
}

.service-site .button-secondary {
  border-color: rgba(0, 124, 117, 0.46);
  background: #ffffff;
  color: var(--accent-dark);
}

.service-site .button-secondary:hover,
.service-site .button-secondary:focus-visible {
  border-color: var(--accent-dark);
  background: #f0fbfa;
}

.service-site :focus-visible {
  outline-color: rgba(0, 124, 117, 0.38);
}

.service-site .section {
  border: 0;
}

.service-site .section h2,
.service-site .cta-content h2,
.service-site .feature-item h3,
.service-site .use-case h3,
.service-site .timeline-step h3,
.service-site .comparison-row h3 {
  color: var(--text);
}

.service-site .section h2::after {
  display: none;
}

.service-site .section-intro,
.service-site .feature-item p,
.service-site .use-case p,
.service-site .timeline-step p,
.service-site .comparison-row p {
  color: var(--muted);
}

.service-site .text-link,
.service-site .breadcrumb a:hover,
.service-site .breadcrumb a:focus-visible {
  color: var(--accent-dark);
}

.service-site .cta-section {
  background: #e8f7f5;
}

.service-site .cta-section::before,
.service-site .cta-section::after {
  display: none;
}

.service-site .cta-content p {
  color: var(--muted);
}

.service-site .site-footer {
  border-color: rgba(29, 29, 31, 0.1);
  background: #f5f5f7;
}

.service-site .footer-brand,
.service-site .footer-heading {
  color: var(--text);
}

.service-site .footer-copy,
.service-site .trademark-note,
.service-site .footer-links a,
.service-site .footer-bottom {
  color: var(--muted);
}

.service-site .footer-links a:hover,
.service-site .footer-links a:focus-visible {
  color: var(--accent-dark);
}

.service-site .footer-bottom {
  border-color: rgba(29, 29, 31, 0.1);
}

.detail-page main {
  background: #ffffff;
}

.detail-page .hero-detail {
  min-height: 520px;
  isolation: isolate;
  border-bottom: 0;
  background: #ffffff;
}

.detail-page .hero-detail::after {
  z-index: 2;
  height: 110px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0), #ffffff 86%);
}

.detail-page .hero-detail .hero-grid {
  z-index: 4;
  grid-template-columns: minmax(0, 680px) minmax(260px, 1fr);
  gap: 32px;
  padding-block: 92px 104px;
}

.detail-page .hero-detail .hero-copy {
  max-width: 680px;
}

.detail-page .hero-detail h1 {
  max-width: 680px;
  margin-bottom: 20px;
  color: var(--text);
  font-size: clamp(40px, 4vw, 50px);
  font-weight: 650;
  letter-spacing: -0.043em;
  line-height: 1.14;
}

.detail-page .hero-detail .hero-lead {
  max-width: 610px;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}

.detail-page .hero-detail .hero-visual {
  inset: 0 0 0 52%;
  opacity: 1;
  background:
    radial-gradient(circle at 58% 46%, rgba(15, 148, 140, 0.08) 0 2px, transparent 3px) 0 0 / 54px 54px,
    radial-gradient(circle at 64% 48%, rgba(15, 148, 140, 0.1), transparent 45%);
}

.detail-page .hero-detail .hero-visual::before {
  inset: 12% 7% 8% 18%;
  border: 1px solid rgba(15, 148, 140, 0.2);
  border-radius: 50%;
  background:
    radial-gradient(circle at center, transparent 49%, rgba(15, 148, 140, 0.12) 49.4% 49.8%, transparent 50.2%),
    conic-gradient(from 24deg, transparent 0 14%, rgba(15, 148, 140, 0.25) 23%, transparent 31% 63%, rgba(24, 168, 158, 0.2) 72%, transparent 81%);
  -webkit-mask: radial-gradient(farthest-side, transparent 58%, #000 59%);
  mask: radial-gradient(farthest-side, transparent 58%, #000 59%);
  transform: rotate(-9deg);
}

.detail-page .hero-detail .hero-visual::after {
  inset: 24% 2% 18% 32%;
  border: 1px solid rgba(15, 148, 140, 0.12);
  border-radius: 50%;
  background: transparent;
  transform: rotate(18deg) scaleX(1.12);
}

.detail-page .breadcrumb {
  padding-block: 14px;
  border-color: rgba(29, 29, 31, 0.1);
  background: #f5f5f7;
  color: var(--muted);
  font-size: 13px;
}

.detail-page .breadcrumb li:not(:last-child)::after {
  color: #9b9ba1;
}

.detail-page .section {
  padding-block: clamp(74px, 8vw, 104px);
  background: #ffffff;
}

.detail-page .section-band,
.detail-page .section-strong {
  background: #f5f5f7;
}

.detail-page .section-head {
  max-width: 730px;
  margin-bottom: clamp(34px, 5vw, 52px);
}

.detail-page .section h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 3.3vw, 40px);
  font-weight: 650;
  letter-spacing: -0.033em;
  line-height: 1.2;
}

.detail-page .section-intro {
  font-size: 17px;
  line-height: 1.72;
}

.detail-page .copy-block a {
  color: var(--accent-dark);
  font-weight: 620;
  text-decoration: underline;
  text-decoration-color: rgba(0, 124, 117, 0.28);
  text-underline-offset: 4px;
}

.detail-page .route-visual {
  min-height: 310px;
  border: 1px solid rgba(0, 124, 117, 0.14);
  border-radius: 22px;
  background:
    radial-gradient(circle at 68% 32%, rgba(15, 148, 140, 0.09), transparent 38%),
    #f5f5f7;
}

.detail-page .route-visual::before,
.detail-page .route-visual::after {
  background: linear-gradient(90deg, transparent, rgba(15, 148, 140, 0.48), var(--accent-dark));
}

.detail-page .route-node {
  color: var(--text);
  font-size: 14px;
  font-weight: 650;
}

.detail-page .route-node::before {
  border-color: #ffffff;
  background: var(--accent);
  box-shadow: 0 0 0 5px rgba(15, 148, 140, 0.1);
}

.detail-page .use-case-grid,
.detail-page .feature-rail {
  gap: 16px;
  border: 0;
}

.detail-page .use-case,
.detail-page .feature-item {
  min-height: 100%;
  padding: 28px;
  border: 0;
  border-radius: 18px;
  background: #ffffff;
  box-shadow: var(--shadow);
  transition: transform 260ms cubic-bezier(0, 0, 0.5, 1), box-shadow 260ms ease;
}

.detail-page .section:not(.section-band):not(.section-strong) .use-case,
.detail-page .section:not(.section-band):not(.section-strong) .feature-item {
  border: 1px solid rgba(29, 29, 31, 0.08);
  box-shadow: none;
}

.detail-page .use-case:hover,
.detail-page .feature-item:hover {
  transform: translateY(-3px);
  box-shadow: 2px 8px 22px rgba(0, 55, 52, 0.1);
}

.detail-page .use-case svg,
.detail-page .feature-item svg {
  width: 42px;
  height: 42px;
  margin-bottom: 24px;
  padding: 10px;
  border-radius: 50%;
  background: #e8f7f5;
  color: var(--accent-dark);
}

.detail-page .timeline {
  gap: 16px;
}

.detail-page .timeline-step {
  min-height: 230px;
  padding: 94px 26px 28px;
  border: 1px solid rgba(29, 29, 31, 0.08);
  border-radius: 18px;
  background: #ffffff;
}

.detail-page .timeline-step::before {
  top: 26px;
  left: 26px;
  width: 48px;
  height: 48px;
  border-color: rgba(0, 124, 117, 0.3);
  color: var(--accent-dark);
}

.detail-page .timeline-step::after {
  display: none;
}

.detail-page .comparison {
  overflow: hidden;
  border: 1px solid rgba(29, 29, 31, 0.1);
  border-radius: 18px;
  background: #ffffff;
}

.detail-page .comparison-head,
.detail-page .comparison-row {
  border-color: rgba(29, 29, 31, 0.1);
}

.detail-page .comparison-head {
  background: #eef8f7;
  color: var(--text);
}

.detail-page .comparison-head > div,
.detail-page .comparison-row > div,
.detail-page .comparison-head > div:first-child,
.detail-page .comparison-row > div:first-child,
.detail-page .comparison-head > div:last-child,
.detail-page .comparison-row > div:last-child {
  padding: 22px 24px;
  border-color: rgba(29, 29, 31, 0.1);
}

.detail-page .comparison-head .accent-copy,
.detail-page .comparison-label,
.detail-page .accent-copy {
  color: var(--accent-dark);
}

.detail-page .boundary {
  border: 1px solid rgba(0, 124, 117, 0.2);
  border-radius: 18px;
  background: #e8f7f5;
}

.detail-page .boundary > svg {
  color: var(--accent-dark);
}

.detail-page .boundary h2,
.detail-page .boundary h3 {
  color: var(--text);
  font-weight: 650;
}

.detail-page .cta-section {
  padding-block: clamp(72px, 8vw, 96px);
}

@media (max-width: 1080px) {
  .service-site .nav-shell {
    flex-wrap: wrap;
    gap: 0 20px;
    padding-block: 8px;
  }

  .service-site .primary-nav {
    order: 3;
    width: 100%;
    flex: 1 0 100%;
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 1px;
    scrollbar-width: none;
  }

  .service-site .primary-nav::-webkit-scrollbar {
    display: none;
  }

  .service-site .primary-nav a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    padding: 11px 0 10px;
    scroll-snap-align: start;
  }

  .service-site .primary-nav a::after {
    bottom: 5px;
  }

  .service-site .nav-actions {
    margin-left: auto;
  }

  .service-site [id] {
    scroll-margin-top: 116px;
  }

  .detail-page .hero-detail .hero-grid {
    grid-template-columns: minmax(0, 0.72fr) minmax(280px, 0.28fr);
  }

  .detail-page .feature-rail,
  .detail-page .use-case-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .detail-page .feature-item:last-child:nth-child(odd),
  .detail-page .use-case:last-child:nth-child(odd) {
    grid-column: 1 / -1;
  }
}

@media (max-width: 820px) {
  .service-site .site-header {
    min-height: 60px;
  }

  .service-site .nav-shell {
    min-height: 60px;
    padding-block: 8px;
  }

  .service-site .primary-nav,
  .landing-page.service-site .primary-nav {
    display: none;
    width: 100%;
    margin-top: 8px;
    padding: 8px;
    gap: 2px;
    overflow: visible;
    border: 1px solid rgba(29, 29, 31, 0.1);
    border-radius: 18px;
    background: #ffffff;
    box-shadow: 0 10px 30px rgba(0, 55, 52, 0.07);
    scroll-snap-type: none;
  }

  .service-site .primary-nav.is-open,
  .landing-page.service-site .primary-nav.is-open {
    display: grid;
    grid-template-columns: 1fr;
  }

  .service-site .primary-nav a {
    min-height: 44px;
    width: 100%;
    padding: 11px 14px;
    border-radius: 12px;
    font-size: 13px;
    scroll-snap-align: none;
  }

  .service-site .primary-nav a::after {
    display: none;
  }

  .service-site .primary-nav a:hover,
  .service-site .primary-nav a:focus-visible,
  .service-site .primary-nav a[aria-current="page"] {
    background: #e8f7f5;
    color: var(--accent-dark);
  }

  .service-site .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .service-site .nav-login {
    display: inline-flex;
  }

  .service-site .nav-actions {
    margin-left: 0;
  }

  .service-site .nav-actions .button {
    min-height: 38px;
    padding: 8px 13px;
  }

  .detail-page .hero-detail {
    min-height: 650px;
  }

  .detail-page .hero-detail .hero-grid {
    grid-template-columns: 1fr;
    padding-block: 58px 280px;
  }

  .detail-page .hero-detail .hero-visual {
    inset: auto 0 0;
    height: 270px;
  }

  .detail-page .hero-detail .hero-visual::before {
    inset: 8% 15% 7% 24%;
  }

  .detail-page .hero-detail .hero-visual::after {
    inset: 20% 14% 16% 34%;
  }

  .detail-page .hero-detail h1 {
    max-width: 640px;
    font-size: clamp(34px, 6.5vw, 42px);
  }

  .detail-page .split,
  .detail-page .split.reverse {
    gap: 42px;
  }
}

@media (max-width: 620px) {
  .service-site .nav-shell {
    gap: 0 10px;
  }

  .service-site .brand {
    font-size: 14.5px;
  }

  .service-site .nav-actions {
    gap: 7px;
  }

  .service-site .nav-toggle {
    min-height: 36px;
    padding-inline: 11px;
    font-size: 12.5px;
  }

  .service-site .nav-login,
  .service-site .nav-actions .button {
    font-size: 12.5px;
  }

  .service-site .nav-actions .button {
    min-height: 36px;
    padding-inline: 11px;
  }

  .service-site .primary-nav a {
    font-size: 12.5px;
  }

  .detail-page .hero-detail {
    min-height: 610px;
  }

  .detail-page .hero-detail .hero-grid {
    padding-block: 46px 230px;
  }

  .detail-page .hero-detail h1 {
    font-size: clamp(30px, 9vw, 36px);
    line-height: 1.16;
  }

  .detail-page .hero-detail .hero-lead {
    font-size: 16px;
    line-height: 1.68;
  }

  .detail-page .hero-detail .hero-visual {
    height: 220px;
  }

  .detail-page .breadcrumb {
    overflow-x: auto;
    white-space: nowrap;
  }

  .detail-page .breadcrumb ol {
    flex-wrap: nowrap;
  }

  .detail-page .section {
    padding-block: 68px;
  }

  .detail-page .section h2,
  .detail-page .cta-content h2 {
    font-size: 29px;
  }

  .detail-page .route-visual {
    min-height: 0;
    display: grid;
    gap: 22px;
    align-content: center;
    padding: 32px 24px;
  }

  .detail-page .route-visual::before {
    top: 42px;
    bottom: 42px;
    left: 31px;
    width: 1px;
    height: auto;
    transform: none;
    background: linear-gradient(180deg, rgba(15, 148, 140, 0.2), var(--accent-dark), rgba(15, 148, 140, 0.2));
  }

  .detail-page .route-visual::after {
    display: none;
  }

  .detail-page .route-node,
  .detail-page .route-node:nth-child(1),
  .detail-page .route-node:nth-child(2),
  .detail-page .route-node:nth-child(3) {
    position: relative;
    inset: auto;
    z-index: 1;
  }

  .detail-page .feature-rail,
  .detail-page .use-case-grid,
  .detail-page .timeline {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .detail-page .feature-item,
  .detail-page .use-case,
  .detail-page .feature-item:first-child,
  .detail-page .feature-item:last-child,
  .detail-page .use-case:first-child,
  .detail-page .use-case:last-child {
    padding: 26px;
    border: 0;
    border-radius: 18px;
    background: #ffffff;
    box-shadow: var(--shadow);
  }

  .detail-page .feature-item:last-child:nth-child(odd),
  .detail-page .use-case:last-child:nth-child(odd) {
    grid-column: auto;
  }

  .detail-page .timeline-step {
    min-height: 0;
    padding: 86px 24px 26px;
  }

  .detail-page .timeline-step::before {
    top: 22px;
    left: 24px;
  }

  .detail-page .comparison {
    gap: 16px;
    overflow: visible;
    border: 0;
    border-radius: 0;
    background: transparent;
  }

  .detail-page .comparison-row {
    overflow: hidden;
    border: 1px solid rgba(29, 29, 31, 0.1);
    border-radius: 16px;
    background: #ffffff;
  }

  .detail-page .comparison-row > div,
  .detail-page .comparison-row > div:first-child,
  .detail-page .comparison-row > div:last-child {
    padding: 18px 20px;
    border-color: rgba(29, 29, 31, 0.1);
  }

  .detail-page .comparison-row > div:nth-child(2)::before,
  .detail-page .comparison-row > div:nth-child(3)::before {
    display: block;
    content: attr(data-label);
    color: var(--accent-dark);
  }

  .detail-page .boundary {
    padding: 25px 22px;
  }

  .detail-page .cta-section {
    padding-block: 68px;
  }
}

/* Category-specific detail hero graphics */
.detail-page .hero-detail .detail-visual {
  inset: 0 0 0 52%;
  display: grid;
  place-items: center;
  padding: 30px 3vw 20px 0;
  overflow: hidden;
  opacity: 1;
  background: radial-gradient(circle at 55% 50%, rgba(15, 148, 140, 0.085), transparent 54%);
}

.detail-page .hero-detail .detail-visual::before,
.detail-page .hero-detail .detail-visual::after {
  display: none;
}

.detail-page .detail-visual--ai {
  background:
    linear-gradient(rgba(15, 148, 140, 0.035) 1px, transparent 1px) 0 0 / 52px 52px,
    linear-gradient(90deg, rgba(15, 148, 140, 0.035) 1px, transparent 1px) 0 0 / 52px 52px,
    radial-gradient(circle at 55% 50%, rgba(15, 148, 140, 0.09), transparent 56%);
}

.detail-page .detail-visual--live {
  background:
    linear-gradient(180deg, transparent 0 48%, rgba(15, 148, 140, 0.035) 48% 48.5%, transparent 48.5%),
    radial-gradient(ellipse at 55% 52%, rgba(15, 148, 140, 0.085), transparent 58%);
}

.detail-page .detail-visual--iepl {
  background:
    linear-gradient(165deg, transparent 0 62%, rgba(15, 148, 140, 0.035) 62% 62.4%, transparent 62.4%),
    radial-gradient(ellipse at 58% 54%, rgba(15, 148, 140, 0.085), transparent 60%);
}

.detail-page .detail-graphic {
  width: min(100%, 680px);
  height: auto;
  max-height: 520px;
  overflow: visible;
}

.detail-page .detail-graphic * {
  vector-effect: non-scaling-stroke;
  transform-box: fill-box;
  transform-origin: center;
}

.detail-page .ai-grid,
.detail-page .ai-links,
.detail-page .ai-flow,
.detail-page .ai-core path,
.detail-page .stream-waves,
.detail-page .stream-scan,
.detail-page .stream-signals,
.detail-page .iepl-routes,
.detail-page .iepl-flow {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.detail-page .ai-grid {
  stroke: rgba(15, 148, 140, 0.08);
  stroke-width: 1;
}

.detail-page .ai-links {
  stroke: rgba(15, 148, 140, 0.2);
  stroke-width: 1.5;
}

.detail-page .ai-flow {
  stroke: rgba(15, 148, 140, 0.9);
  stroke-width: 2.2;
  stroke-dasharray: 3 18;
  animation: detail-path-flow 5.8s linear infinite;
}

.detail-page .ai-nodes rect {
  fill: rgba(255, 255, 255, 0.92);
  stroke: rgba(15, 148, 140, 0.38);
  stroke-width: 1.4;
  animation: detail-node-breathe 4.8s ease-in-out infinite;
}

.detail-page .ai-nodes rect:nth-child(2),
.detail-page .ai-nodes rect:nth-child(5) {
  animation-delay: -1.6s;
}

.detail-page .ai-nodes rect:nth-child(3),
.detail-page .ai-nodes rect:nth-child(6) {
  animation-delay: -3.2s;
}

.detail-page .ai-core {
  animation: ai-core-breathe 5.2s ease-in-out infinite;
}

.detail-page .ai-core > rect:first-child {
  fill: rgba(255, 255, 255, 0.98);
  stroke: rgba(15, 148, 140, 0.48);
  stroke-width: 1.6;
}

.detail-page .ai-core > rect:nth-child(2) {
  fill: rgba(15, 148, 140, 0.08);
  stroke: rgba(15, 148, 140, 0.24);
  stroke-width: 1.2;
}

.detail-page .ai-core path {
  stroke: rgba(11, 116, 110, 0.82);
  stroke-width: 3;
}

.detail-page .ai-core circle {
  fill: #0f948c;
}

.detail-page .stream-frame > rect:first-child {
  fill: rgba(255, 255, 255, 0.98);
  stroke: rgba(15, 148, 140, 0.32);
  stroke-width: 1.6;
}

.detail-page .stream-frame > rect:nth-child(2) {
  fill: rgba(15, 148, 140, 0.045);
  stroke: rgba(15, 148, 140, 0.18);
  stroke-width: 1.2;
}

.detail-page .stream-frame > path:nth-of-type(1) {
  fill: rgba(15, 148, 140, 0.82);
  stroke: none;
}

.detail-page .stream-frame > path:nth-of-type(2) {
  fill: none;
  stroke: rgba(15, 148, 140, 0.18);
  stroke-linecap: round;
  stroke-width: 2;
}

.detail-page .stream-wave {
  stroke: rgba(15, 148, 140, 0.8);
  stroke-width: 2.2;
  stroke-dasharray: 6 8;
  animation: stream-wave 4.6s linear infinite;
}

.detail-page .stream-wave--two {
  stroke: rgba(15, 148, 140, 0.38);
  animation-direction: reverse;
  animation-duration: 6.2s;
}

.detail-page .stream-scan {
  stroke: rgba(15, 148, 140, 0.44);
  stroke-width: 1.4;
  animation: stream-scan 4.8s cubic-bezier(.45, 0, .55, 1) infinite;
}

.detail-page .stream-bars rect {
  fill: rgba(15, 148, 140, 0.28);
  animation: stream-bar 2.8s ease-in-out infinite;
}

.detail-page .stream-bars rect:nth-child(2) { animation-delay: -0.45s; }
.detail-page .stream-bars rect:nth-child(3) { animation-delay: -0.9s; }
.detail-page .stream-bars rect:nth-child(4) { animation-delay: -1.35s; }
.detail-page .stream-bars rect:nth-child(5) { animation-delay: -1.8s; }

.detail-page .stream-signals {
  stroke: rgba(15, 148, 140, 0.28);
  stroke-width: 1.8;
  stroke-dasharray: 8 12;
  animation: detail-path-flow 7.2s linear infinite;
}

.detail-page .stream-particle {
  fill: rgba(15, 148, 140, 0.48);
  animation: stream-particle 4.4s ease-in-out infinite;
}

.detail-page .stream-particle--two { animation-delay: -1.5s; }
.detail-page .stream-particle--three { animation-delay: -3s; }

.detail-page .iepl-map {
  fill: rgba(15, 148, 140, 0.035);
  stroke: rgba(15, 148, 140, 0.16);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.1;
}

.detail-page .iepl-routes {
  stroke: rgba(15, 148, 140, 0.24);
  stroke-width: 1.3;
}

.detail-page .iepl-flow {
  stroke: rgba(15, 148, 140, 0.9);
  stroke-width: 2.6;
  stroke-dasharray: 2 18;
  animation: detail-path-flow 5.8s linear infinite;
}

.detail-page .iepl-flow--two {
  stroke: rgba(15, 148, 140, 0.62);
  animation-duration: 8.4s;
  animation-direction: reverse;
}

.detail-page .iepl-flow--three {
  stroke: rgba(15, 148, 140, 0.42);
  animation-duration: 10s;
}

.detail-page .iepl-node circle:first-child {
  fill: rgba(255, 255, 255, 0.96);
  stroke: rgba(15, 148, 140, 0.4);
  stroke-width: 1.5;
}

.detail-page .iepl-node circle:last-child {
  fill: #0f948c;
}

.detail-page .iepl-node {
  animation: detail-node-breathe 4.6s ease-in-out infinite;
}

.detail-page .iepl-node:nth-child(2n) { animation-delay: -1.5s; }
.detail-page .iepl-node:nth-child(3n) { animation-delay: -3s; }
.detail-page .iepl-node--hub { animation-duration: 3.8s; }

@keyframes detail-path-flow {
  to { stroke-dashoffset: -132; }
}

@keyframes detail-node-breathe {
  0%, 100% { opacity: 0.7; transform: scale(0.94); }
  50% { opacity: 1; transform: scale(1.06); }
}

@keyframes ai-core-breathe {
  0%, 100% { transform: translateY(2px) scale(0.99); }
  50% { transform: translateY(-4px) scale(1.015); }
}

@keyframes stream-wave {
  to { stroke-dashoffset: -112; }
}

@keyframes stream-scan {
  0%, 12% { opacity: 0; transform: translateY(0); }
  22% { opacity: 0.72; }
  78% { opacity: 0.72; }
  88%, 100% { opacity: 0; transform: translateY(220px); }
}

@keyframes stream-bar {
  0%, 100% { opacity: 0.44; transform: scaleY(0.72); }
  50% { opacity: 0.9; transform: scaleY(1.08); }
}

@keyframes stream-particle {
  0%, 100% { opacity: 0.12; transform: translateY(18px) scale(0.8); }
  50% { opacity: 0.72; transform: translateY(-34px) scale(1.08); }
}

.search-intent-section {
  padding-top: clamp(54px, 7vw, 86px);
}

.intent-grid,
.faq-list {
  display: grid;
  gap: 18px;
}

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

.intent-card,
.faq-item {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(15, 148, 140, 0.14);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.98), rgba(240, 253, 251, 0.82)),
    #ffffff;
  border-radius: 26px;
  box-shadow: 0 20px 54px rgba(19, 36, 44, 0.08);
}

.intent-card {
  min-height: 236px;
  padding: 28px;
  color: inherit;
  text-decoration: none;
  transition: transform 0.26s ease, border-color 0.26s ease, box-shadow 0.26s ease;
}

.intent-card::after {
  content: "";
  position: absolute;
  inset: auto -18% -34% 28%;
  height: 140px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(37, 203, 193, 0.18), transparent 70%);
  pointer-events: none;
}

.intent-card:hover,
.intent-card:focus-visible {
  transform: translateY(-5px);
  border-color: rgba(15, 148, 140, 0.34);
  box-shadow: 0 26px 70px rgba(15, 148, 140, 0.16);
}

.intent-card span {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 20px;
  padding: 7px 11px;
  border-radius: 999px;
  color: #087c76;
  background: rgba(15, 148, 140, 0.1);
  font-size: 0.82rem;
  font-weight: 750;
  letter-spacing: 0.02em;
}

.intent-card h3,
.faq-item h3 {
  margin: 0;
  color: #0d2228;
  letter-spacing: -0.025em;
}

.intent-card h3 {
  font-size: clamp(1.28rem, 2vw, 1.72rem);
}

.intent-card p,
.faq-item p {
  margin: 14px 0 0;
  color: #526a70;
  line-height: 1.88;
}

.faq-section {
  background:
    radial-gradient(circle at 10% 10%, rgba(37, 203, 193, 0.08), transparent 34%),
    linear-gradient(180deg, rgba(248, 252, 252, 0), rgba(240, 248, 248, 0.92));
}

.faq-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: stretch;
}

.faq-item {
  min-height: 226px;
  padding: 30px 32px;
}

.faq-item::before {
  content: "";
  display: block;
  width: 42px;
  height: 5px;
  margin-bottom: 20px;
  border-radius: 999px;
  background: linear-gradient(90deg, #0f948c, #25cbc1);
}

.landing-page .faq-item h3 {
  font-size: clamp(1.2rem, 1.55vw, 1.46rem);
  line-height: 1.4;
}

@media (max-width: 820px) {
  .intent-grid,
  .faq-list {
    grid-template-columns: 1fr;
  }

  .intent-card {
    min-height: 0;
  }

  .faq-item {
    min-height: 0;
  }

  .detail-page .hero-detail .detail-visual {
    inset: auto 0 0;
    height: 270px;
    padding: 4px 7vw 12px;
  }

  .detail-page .detail-graphic {
    width: min(100%, 460px);
    max-height: 260px;
  }
}

@media (max-width: 620px) {
  .detail-page .hero-detail .detail-visual {
    height: 220px;
    padding: 0 4vw 8px;
  }

  .detail-page .detail-graphic {
    width: min(100%, 390px);
    max-height: 214px;
  }
}

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

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

  .hero-orbit,
  .hero-orbit::before,
  .hero-orbit span,
  .route-flows path,
  .route-nodes circle,
  .detail-graphic * {
    animation: none !important;
  }

  .hero-card-track {
    scroll-behavior: auto;
  }
}