:root {
  --red: #c30e23;
  --red-deep: #9e0b1b;
  --red-bright: #e8324a;
  /* 设计稿深蓝背景 */
  --dark: #192252;
  --dark-2: #121b38;
  --blue-muted: #8fa3cc;
  --light: #ffffff;
  --light-2: #f8f9fc;
  --muted: #5c6478;
  --muted-on-dark: #b8c8e8;
  --ink: #1a2035;
  --accent-line: #f0b429;
  --line: #e2e8f4;
  --media: #dce8f4;
  --media-deep: #a8c4e8;
  --media-tint: rgba(255, 255, 255, 0.12);
  --wrap: min(1100px, calc(100% - 40px));
  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Consolas, monospace;
  --section-pad: clamp(64px, 9vw, 100px);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--light);
  line-height: 1.55;
}

[hidden] {
  display: none !important;
}

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

.wrap {
  width: var(--wrap);
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

/* Topo pattern on dark sections */
.topo {
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='800' height='600'%3E%3Cpath fill='none' stroke='%23ffffff' stroke-width='0.6' opacity='0.12' d='M0 120 Q200 80 400 120 T800 120 M0 240 Q250 200 500 260 T800 240 M0 360 Q180 320 420 380 T800 360 M0 480 Q220 440 480 500 T800 480'/%3E%3C/svg%3E");
  background-size: cover;
  pointer-events: none;
}

.h-accent {
  background: linear-gradient(transparent 68%, var(--accent-line) 68%);
}

/* Buttons */
.btn-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 28px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform 0.15s, background 0.15s;
}

.btn-pill:hover {
  transform: translateY(-1px);
}

.btn-pill.primary {
  background: var(--red);
  color: #fff;
}

.btn-pill.primary:hover {
  background: var(--red-bright);
}

.btn-pill.light {
  background: var(--red);
  color: #fff;
}

.btn-pill.outline {
  background: transparent;
  color: var(--red);
  border: 2px solid var(--red);
}

.btn-pill.outline:hover {
  background: rgba(195, 14, 35, 0.08);
}

.price-card.featured .btn-pill.outline {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
}

.price-card.featured .btn-pill.outline:hover {
  background: rgba(255, 255, 255, 0.1);
}

.btn-pill.lg {
  min-height: 54px;
  padding: 0 36px;
  font-size: 17px;
}

.btn-pill.block {
  width: 100%;
}

.btn-text {
  font-size: 15px;
  font-weight: 600;
  color: var(--muted-on-dark);
}

.btn-text:hover {
  color: #fff;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--dark);
  color: #fff;
}

.header-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 20px;
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 18px;
  color: #fff;
}

.brand img {
  display: block;
}

.site-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 42px;
  font-size: 15px;
  font-weight: 500;
  color: var(--muted-on-dark);
}

.site-nav a:hover {
  color: #fff;
}

.site-nav.is-doc {
  justify-content: flex-start;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: flex-end;
}

.lang {
  display: flex;
  padding: 3px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
}

.lang-btn {
  border: 0;
  background: transparent;
  padding: 5px 10px;
  border-radius: 999px;
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  color: var(--muted-on-dark);
  cursor: pointer;
}

.lang-btn.is-on {
  background: var(--red);
  color: #fff;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 0 auto;
  background: #fff;
  transition: transform 0.2s, opacity 0.2s;
}

/* Hero */
.hero-dark {
  position: relative;
  overflow: hidden;
  background: var(--dark);
  color: #fff;
  padding: clamp(48px, 8vw, 88px) 0 clamp(56px, 7vw, 80px);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 56px);
  align-items: center;
}

.hero-copy h1 {
  margin: 0 0 20px;
  font-size: clamp(32px, 4.5vw, 52px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.hero-kicker {
  display: inline-flex;
  margin: 0 0 14px;
  padding: 6px 10px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  color: #c5d9ff;
  background: rgba(255, 255, 255, 0.07);
  font-size: 13px;
  font-weight: 800;
}

.hero-lead {
  margin: 0 0 28px;
  max-width: 28rem;
  font-size: 17px;
  line-height: 1.7;
  color: var(--muted-on-dark);
}

.lookup-bar {
  display: flex;
  gap: 0;
  max-width: 480px;
  min-height: 58px;
  padding: 4px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 999px;
  overflow: hidden;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.18);
}

.lookup-bar input {
  flex: 1;
  min-width: 0;
  min-height: 50px;
  padding: 0 18px;
  border: 0;
  border-radius: 999px 0 0 999px;
  background: #fff;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 15px;
  outline: none;
}

.lookup-bar .btn-pill {
  min-height: 50px;
  min-width: 104px;
  padding-inline: 24px;
  border-radius: 0 999px 999px 0;
  box-shadow: none;
}

.lookup-hint {
  margin: 12px 2px 0;
  font-size: 13px;
  color: var(--muted-on-dark);
}

.lookup-hint.is-ip,
.lookup-hint.is-mobile {
  color: #c5d9ff;
  font-weight: 600;
}

.hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 520px;
  margin-top: 32px;
}

.hero-metrics div {
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.hero-metrics strong {
  display: block;
  color: #fff;
  font-size: 22px;
  line-height: 1.1;
}

.hero-metrics span {
  display: block;
  margin-top: 4px;
  color: var(--muted-on-dark);
  font-size: 12px;
}

.chip {
  padding: 8px 14px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  background: transparent;
  color: #fff;
  font-family: var(--mono);
  font-size: 12px;
  cursor: pointer;
}

.chip:hover {
  border-color: var(--red-bright);
  background: rgba(195, 14, 35, 0.25);
}

.hero-result .result-panel {
  min-height: 420px;
  background: var(--media);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

.result-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.5);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.result-type {
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  color: #fff;
  background: var(--red);
}

.result-type.is-mobile {
  background: var(--red-deep);
}

.result-endpoint {
  flex: 1;
  min-width: 0;
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.45;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.result-body {
  min-height: 300px;
  max-height: 430px;
  padding: 16px;
  overflow: auto;
  background: #fff;
}

.result-idle,
.result-loading,
.result-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 240px;
  text-align: center;
  color: var(--muted);
}

.result-idle p:first-child {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.muted {
  margin: 0;
  font-size: 13px;
}

.spinner {
  width: 32px;
  height: 32px;
  margin-bottom: 12px;
  border: 3px solid var(--line);
  border-top-color: var(--red);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

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

.error-title {
  margin: 0 0 8px;
  font-weight: 800;
  color: var(--red);
}

.error-msg {
  margin: 0;
  font-size: 14px;
  max-width: 24rem;
}

.result-fields {
  margin: 0;
  display: grid;
  gap: 12px;
}

.result-summary {
  display: grid;
  gap: 6px;
  padding: 16px;
  border: 1px solid rgba(28, 151, 92, 0.28);
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(28, 151, 92, 0.13), rgba(232, 248, 239, 0.78));
}

.result-summary strong {
  color: #0b5f3a;
  font-size: 18px;
  line-height: 1.3;
}

.result-summary span {
  min-height: 18px;
  color: #26724f;
  font-size: 13px;
}

.result-json {
  height: 270px;
  margin: 0;
  padding: 14px 16px;
  overflow: auto;
  border: 1px solid #d9e4ef;
  border-radius: 8px;
  background: #0f172a;
  color: #dbeafe;
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.72;
  white-space: pre;
}

.result-json code {
  font: inherit;
}

.json-key {
  color: #93c5fd;
}

.json-string {
  color: #86efac;
}

.json-number {
  color: #fbbf24;
}

.json-boolean {
  color: #f0abfc;
}

.json-null {
  color: #94a3b8;
}

.result-group {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--light-2);
}

.result-group h3 {
  margin: 0 0 6px;
  color: var(--ink);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.result-row {
  display: grid;
  grid-template-columns: minmax(72px, 0.38fr) minmax(0, 1fr);
  gap: 8px 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
}

.result-row:last-child {
  border-bottom: 0;
}

.result-fields dt {
  margin: 0;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--muted);
}

.result-fields dd {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  min-width: 0;
  word-break: break-word;
}

.result-raw {
  border-top: 1px solid var(--line);
  background: var(--light-2);
}

.result-raw summary {
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 700;
  color: var(--red);
  cursor: pointer;
  list-style: none;
}

.result-raw pre {
  margin: 0;
  padding: 0 16px 12px;
  max-height: 140px;
  overflow: auto;
  font-family: var(--mono);
  font-size: 10px;
}

/* Split sections */
.split {
  position: relative;
  padding: var(--section-pad) 0;
}

.split.light {
  background: var(--light);
}

.split.dark {
  background: var(--dark);
  color: #fff;
  overflow: hidden;
}

.split.dark .split-copy p,
.split.dark .hero-lead {
  color: var(--muted-on-dark);
}

.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 72px);
  align-items: center;
}

.split-grid.reverse .split-visual {
  order: -1;
}

.split-copy h2 {
  margin: 0 0 20px;
  font-size: clamp(26px, 3.5vw, 40px);
  font-weight: 800;
  line-height: 1.2;
}

.split.dark .split-copy h2 {
  color: #fff;
}

.split-copy p {
  margin: 0 0 28px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 28rem;
}

.split.dark .split-copy p {
  color: var(--muted-on-dark);
}

.media-box {
  min-height: 280px;
  border-radius: 8px;
  background: var(--media);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px;
}

.media-box.light-tint {
  background: var(--media-tint);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.mock-ui {
  width: 100%;
  max-width: 360px;
  padding: 20px;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.mock-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}

.mock-row code {
  font-family: var(--mono);
  font-size: 12px;
}

.orbit {
  position: relative;
  width: 320px;
  height: 320px;
  margin: 0 auto 62px;
  border-radius: 50%;
  isolation: isolate;
}

.mobile-orbit {
  background:
    radial-gradient(circle at center, rgba(195, 14, 35, 0.14) 0 18%, transparent 19%),
    radial-gradient(circle at center, rgba(25, 34, 82, 0.08) 0 42%, transparent 43%),
    linear-gradient(145deg, #f7fbff, #edf4ff);
  border: 1px solid rgba(168, 196, 232, 0.55);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.74),
    0 24px 60px rgba(25, 34, 82, 0.14);
  overflow: visible;
}

.mobile-orbit::before,
.mobile-orbit::after {
  content: "";
  position: absolute;
  inset: 28px;
  border-radius: 50%;
  pointer-events: none;
}

.mobile-orbit::before {
  background:
    linear-gradient(90deg, transparent 49.8%, rgba(25, 34, 82, 0.14) 50%, transparent 50.2%),
    linear-gradient(0deg, transparent 49.8%, rgba(25, 34, 82, 0.14) 50%, transparent 50.2%);
  opacity: 0.5;
}

.mobile-orbit::after {
  border: 1px solid rgba(25, 34, 82, 0.08);
  background: conic-gradient(from 120deg, rgba(195, 14, 35, 0.2), transparent 18%, transparent 100%);
  animation: orbitScan 6s linear infinite;
}

.orbit-ring,
.orbit-scan,
.orbit-packet,
.orbit-node,
.orbit-core,
.orbit-readout {
  position: absolute;
}

.orbit-ring {
  inset: 50%;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.orbit-ring-outer {
  width: 276px;
  height: 276px;
  border: 1px solid rgba(25, 34, 82, 0.2);
  background:
    repeating-conic-gradient(from 0deg, rgba(195, 14, 35, 0.58) 0 8deg, transparent 8deg 24deg);
  -webkit-mask: radial-gradient(circle, transparent 0 48%, #000 49% 51%, transparent 52%);
  mask: radial-gradient(circle, transparent 0 48%, #000 49% 51%, transparent 52%);
  animation: orbitRotate 28s linear infinite;
}

.orbit-ring-mid {
  width: 212px;
  height: 212px;
  border: 1px dashed rgba(143, 163, 204, 0.62);
  animation: orbitRotateReverse 22s linear infinite;
}

.orbit-ring-inner {
  width: 136px;
  height: 136px;
  border: 1px solid rgba(195, 14, 35, 0.28);
  box-shadow: 0 0 24px rgba(195, 14, 35, 0.1);
  animation: orbitPulse 3.8s ease-in-out infinite;
}

.orbit-scan {
  inset: 34px;
  border-radius: 50%;
  background: conic-gradient(from 220deg, rgba(232, 50, 74, 0.26), transparent 16%, transparent 100%);
  animation: orbitScan 7.5s linear infinite;
  z-index: 0;
}

.orbit-core {
  inset: 50%;
  width: 92px;
  height: 92px;
  margin: -46px 0 0 -46px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 2px;
  color: #fff;
  background: linear-gradient(145deg, var(--red-bright), var(--red-deep));
  border: 6px solid #fff;
  border-radius: 50%;
  box-shadow:
    0 16px 36px rgba(195, 14, 35, 0.28),
    0 0 0 12px rgba(195, 14, 35, 0.08);
  z-index: 4;
}

.orbit-core span {
  font-size: 20px;
  font-weight: 900;
  letter-spacing: 0;
}

.orbit-core small {
  font-size: 9px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.78);
}

.orbit-node {
  top: 50%;
  left: 50%;
  width: 76px;
  min-height: 48px;
  margin: -24px -38px;
  display: grid;
  place-items: center;
  gap: 1px;
  padding: 8px 10px;
  text-align: center;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(168, 196, 232, 0.82);
  border-radius: 999px;
  box-shadow: 0 12px 28px rgba(25, 34, 82, 0.13);
  transform: rotate(calc(var(--i) * 90deg + 18deg)) translate(126px) rotate(calc((var(--i) * -90deg) - 18deg));
  z-index: 3;
}

.orbit-node b {
  font-size: 11px;
  font-weight: 900;
  color: var(--dark);
}

.orbit-node small {
  font-size: 9px;
  font-weight: 700;
  color: var(--muted);
  white-space: nowrap;
}

.node-mobile,
.node-city {
  border-color: rgba(195, 14, 35, 0.44);
}

.node-carrier,
.node-api {
  border-color: rgba(25, 34, 82, 0.3);
}

.orbit-packet {
  top: 50%;
  left: 50%;
  width: 9px;
  height: 9px;
  margin: -4.5px;
  border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 0 5px rgba(195, 14, 35, 0.12), 0 0 18px rgba(195, 14, 35, 0.45);
  z-index: 2;
}

.packet-a {
  animation: orbitPacketA 5.2s linear infinite;
}

.packet-b {
  background: var(--dark);
  box-shadow: 0 0 0 5px rgba(25, 34, 82, 0.1), 0 0 18px rgba(25, 34, 82, 0.32);
  animation: orbitPacketB 6.8s linear infinite;
}

.packet-c {
  width: 7px;
  height: 7px;
  margin: -3.5px;
  background: var(--accent-line);
  box-shadow: 0 0 0 4px rgba(240, 180, 41, 0.14), 0 0 16px rgba(240, 180, 41, 0.36);
  animation: orbitPacketC 4.8s linear infinite;
}

.orbit-readout {
  left: 50%;
  bottom: -58px;
  min-width: 210px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 10px 14px;
  color: var(--dark);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(168, 196, 232, 0.72);
  border-radius: 999px;
  box-shadow: 0 14px 32px rgba(25, 34, 82, 0.12);
  z-index: 5;
}

.orbit-readout span,
.orbit-readout strong {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0;
  white-space: nowrap;
}

.orbit-readout span {
  color: var(--red);
  font-weight: 800;
}

.orbit-readout strong {
  font-weight: 800;
}

.orbit-readout i {
  width: 24px;
  height: 1px;
  background: linear-gradient(90deg, var(--red), rgba(25, 34, 82, 0.35));
}

.mobile-orbit:hover .orbit-ring,
.mobile-orbit:hover .orbit-scan,
.mobile-orbit:hover::after,
.mobile-orbit:hover .orbit-packet {
  animation-play-state: paused;
}

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

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

@keyframes orbitScan {
  to { transform: rotate(360deg); }
}

@keyframes orbitPulse {
  50% { box-shadow: 0 0 34px rgba(195, 14, 35, 0.18); }
}

@keyframes orbitPacketA {
  from { transform: rotate(40deg) translate(106px) rotate(-40deg); }
  to { transform: rotate(360deg) translate(106px) rotate(-360deg); }
}

@keyframes orbitPacketB {
  from { transform: rotate(150deg) translate(138px) rotate(-150deg); }
  to { transform: rotate(510deg) translate(138px) rotate(-510deg); }
}

@keyframes orbitPacketC {
  from { transform: rotate(265deg) translate(72px) rotate(-265deg); }
  to { transform: rotate(625deg) translate(72px) rotate(-625deg); }
}

.code-preview {
  margin: 0;
  width: 100%;
  padding: 20px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.6;
  color: #fff;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 8px;
}

.check-list {
  margin: 0;
  padding: 0;
  list-style: none;
  width: 100%;
  max-width: 280px;
}

.check-list li {
  padding: 14px 0 14px 32px;
  font-size: 16px;
  font-weight: 600;
  border-bottom: 1px solid var(--line);
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18'%3E%3Cpath fill='%23c30e23' d='M7 12.5 3.5 9l1-1 2.5 2.5L13.5 4l1 1z'/%3E%3C/svg%3E") no-repeat 0 14px;
}

.flow-diagram {
  flex-direction: column;
  gap: 0;
  min-height: auto;
  background: transparent;
  padding: 0;
}

.flow-node {
  padding: 16px 32px;
  font-weight: 700;
  background: var(--media);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

.flow-line {
  width: 2px;
  height: 32px;
  margin: 0 auto;
  background: var(--red);
  opacity: 0.4;
}

.apps-cluster {
  position: relative;
  min-height: 260px;
  background: transparent;
}

.app-dot {
  position: absolute;
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  font-size: 11px;
  font-weight: 800;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  color: #fff;
}

.app-dot:nth-child(1) { top: 10%; left: 15%; }
.app-dot:nth-child(2) { top: 5%; right: 20%; }
.app-dot:nth-child(4) { bottom: 15%; left: 10%; }
.app-dot:nth-child(5) { bottom: 10%; right: 15%; }

.app-dot.core {
  top: 50%;
  left: 50%;
  width: 72px;
  height: 72px;
  margin: -36px 0 0 -36px;
  font-size: 13px;
  background: var(--red);
  border: none;
}

.api-inline {
  display: block;
  margin: 8px 0;
  padding: 12px;
  font-family: var(--mono);
  font-size: 11px;
  word-break: break-all;
  background: rgba(0, 0, 0, 0.25);
  border-radius: 6px;
  color: #c5d9ff;
}

/* Pricing */
.pricing {
  padding: var(--section-pad) 0;
}

.center-head {
  text-align: center;
  margin-bottom: 48px;
}

.center-head.compact {
  margin-bottom: 28px;
}

.center-head h2 {
  margin: 0 0 12px;
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
}

.center-head p {
  margin: 0;
  font-size: 16px;
  color: var(--muted);
}

.price-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.price-card {
  display: flex;
  flex-direction: column;
  padding: 32px 28px;
  background: var(--light-2);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.price-card h3 {
  margin: 0 0 8px;
  font-size: 22px;
}

.price-tag {
  margin: 0 0 24px;
  font-size: 36px;
  font-weight: 800;
  color: var(--red);
}

.price-card ul {
  flex: 1;
  margin: 0 0 28px;
  padding: 0;
  list-style: none;
}

.price-card li {
  padding: 8px 0 8px 24px;
  font-size: 15px;
  color: var(--muted);
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14'%3E%3Cpath fill='%23c30e23' d='M5.5 10.5 2 7l1-1 2.5 2.5L11 3l1 1z'/%3E%3C/svg%3E") no-repeat 0 10px;
}

.price-card.featured {
  background: var(--dark);
  color: #fff;
  transform: scale(1.04);
  border-color: var(--dark);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

.price-card.featured .price-tag {
  color: #fff;
}

.price-card.featured li {
  color: var(--muted-on-dark);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14'%3E%3Cpath fill='%23ffffff' d='M5.5 10.5 2 7l1-1 2.5 2.5L11 3l1 1z'/%3E%3C/svg%3E");
}

.price-card.featured .btn-pill.light {
  background: var(--red);
}

/* Bands */
.band {
  position: relative;
  overflow: hidden;
  padding: var(--section-pad) 0;
}

.band.dark {
  background: var(--dark);
  color: #fff;
}

.band-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 36rem;
  margin-inline: auto;
}

.band-inner h2 {
  margin: 0 0 16px;
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 800;
  line-height: 1.2;
}

.band-inner p {
  margin: 0 0 28px;
  font-size: 17px;
  line-height: 1.65;
  color: var(--muted-on-dark);
}

.devices {
  margin: 20px 0 0;
  font-size: 14px;
  color: var(--muted-on-dark);
}

.lead-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
  text-align: left;
}

.lead-form label {
  display: grid;
  gap: 7px;
  color: #fff;
  font-size: 13px;
  font-weight: 800;
}

.lead-form input,
.lead-form textarea {
  width: 100%;
  min-height: 46px;
  padding: 0 12px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.96);
  color: var(--ink);
  font: inherit;
}

.lead-form textarea {
  min-height: 92px;
  padding: 12px;
  resize: vertical;
}

.lead-wide,
.lead-actions {
  grid-column: 1 / -1;
}

.lead-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.lead-message {
  color: #c5d9ff;
  font-size: 13px;
}

.lead-message.is-error {
  color: #ffd6dc;
}

.light-form {
  max-width: 760px;
}

.light-form label {
  color: var(--ink);
}

.light-form input,
.light-form textarea {
  border-color: var(--line);
  background: #fff;
}

.light-form .lead-message {
  color: var(--muted);
}

.light-form .lead-message.is-error {
  color: var(--red);
}

.doc-page {
  background: var(--light);
}

.doc-hero {
  padding: 80px 0 48px;
  background: var(--dark);
  color: #fff;
}

.doc-hero h1 {
  margin: 0 0 14px;
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.1;
}

.doc-hero p {
  margin: 0;
  max-width: 44rem;
  color: var(--muted-on-dark);
  font-size: 17px;
  line-height: 1.75;
}

.doc-content {
  display: grid;
  gap: 28px;
  padding: 52px 0 72px;
}

.doc-section {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
}

.doc-section h2 {
  margin: 0 0 14px;
  font-size: 24px;
}

.doc-section p,
.doc-section li {
  color: var(--muted);
  line-height: 1.75;
}

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

.download-card {
  display: grid;
  gap: 10px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--light-2);
}

.download-card strong {
  font-size: 18px;
}

.download-card span {
  color: var(--muted);
  font-size: 13px;
}

.download-card button {
  justify-self: start;
  min-height: 38px;
  padding: 0 14px;
  border: 0;
  border-radius: 8px;
  background: var(--red);
  color: #fff;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

/* Sponsors */
.sponsors {
  padding: 56px 0 64px;
}

.sponsor-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px 40px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.sponsor-logos li {
  font-size: 18px;
  font-weight: 700;
  color: #9ca3af;
  letter-spacing: 0.02em;
}

/* Testimonials */
.testimonials {
  padding: var(--section-pad) 0;
}

.testi-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testi-card {
  display: flex;
  flex-direction: column;
  padding: 28px 24px 24px;
  border-radius: 10px;
  min-height: 220px;
}

.outline-card {
  background: #fff;
  border: 2px solid var(--line);
}

.tint-card {
  background: var(--media);
  border: 2px solid transparent;
}

.accent-card {
  background: var(--media-deep);
  border: 2px solid transparent;
}

.accent-card .quote-mark {
  color: #4a6a9e;
}

.quote-mark {
  font-size: 48px;
  line-height: 1;
  color: var(--red);
  font-weight: 800;
}

.testi-card p {
  flex: 1;
  margin: 8px 0 20px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink);
}

.testi-card footer {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.testi-card footer strong {
  font-size: 14px;
}

.testi-card footer span {
  font-size: 13px;
  color: var(--muted);
}

/* Footer */
.site-footer {
  background: var(--dark-2);
  color: #fff;
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px 32px;
  margin-bottom: 48px;
}

.footer-brand p {
  margin: 16px 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted-on-dark);
  max-width: 16rem;
}

.footer-lang {
  margin-top: 16px;
}

.site-footer h4 {
  margin: 0 0 16px;
  font-size: 15px;
  font-weight: 700;
}

.site-footer a {
  display: block;
  margin-bottom: 10px;
  font-size: 14px;
  color: var(--muted-on-dark);
}

.site-footer a:hover {
  color: #fff;
}

.footer-cta-col p {
  margin: 0 0 16px;
  font-size: 14px;
  color: var(--muted-on-dark);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 13px;
  color: var(--muted-on-dark);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-legal a:hover {
  color: #fff;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  font-size: 11px;
  font-weight: 700;
  color: var(--muted-on-dark);
}

.footer-social a:hover {
  color: #fff;
  border-color: var(--red);
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-grid,
  .split-grid {
    grid-template-columns: 1fr;
  }

  .split-grid.reverse .split-visual,
  .split-grid.reverse-mobile .split-visual {
    order: 0;
  }

  .price-card.featured {
    transform: none;
  }

  .testi-row {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 900px) {
  .header-row {
    grid-template-columns: auto auto 1fr;
    grid-template-rows: auto auto;
    row-gap: 12px;
    padding: 12px 0;
    min-height: auto;
  }

  .brand {
    grid-column: 1;
    grid-row: 1;
  }

  .nav-toggle {
    display: flex;
    grid-column: 2;
    grid-row: 1;
    justify-self: end;
  }

  .header-actions {
    grid-column: 3;
    grid-row: 1;
  }

  .header-actions .btn-text {
    display: none;
  }

  .site-nav {
    display: none;
    grid-column: 1 / -1;
    grid-row: 2;
    flex-direction: column;
    align-items: stretch;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 12px 4px;
  }

  .price-row {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-inline: auto;
  }

  .orbit {
    width: 240px;
    height: 240px;
  }

  .orbit-ring-outer {
    width: 208px;
    height: 208px;
  }

  .orbit-ring-mid {
    width: 162px;
    height: 162px;
  }

  .orbit-ring-inner {
    width: 104px;
    height: 104px;
  }

  .orbit-core {
    width: 78px;
    height: 78px;
    margin: -39px 0 0 -39px;
  }

  .orbit-node {
    width: 68px;
    min-height: 44px;
    margin: -22px -34px;
    padding: 7px 8px;
    transform: rotate(calc(var(--i) * 90deg + 18deg)) translate(95px) rotate(calc((var(--i) * -90deg) - 18deg));
  }

  .orbit-node small {
    display: none;
  }

  .orbit-readout {
    bottom: -48px;
    min-width: 186px;
    padding: 9px 12px;
  }

  .orbit-readout span,
  .orbit-readout strong {
    font-size: 10px;
  }

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

@media (prefers-reduced-motion: reduce) {
  .mobile-orbit::after,
  .orbit-ring,
  .orbit-scan,
  .orbit-packet {
    animation: none;
  }

  .packet-a {
    transform: rotate(40deg) translate(106px) rotate(-40deg);
  }

  .packet-b {
    transform: rotate(150deg) translate(138px) rotate(-150deg);
  }

  .packet-c {
    transform: rotate(265deg) translate(72px) rotate(-265deg);
  }
}

@media (max-width: 520px) {
  :root {
    --wrap: calc(100% - 28px);
  }

  .lookup-bar {
    max-width: 100%;
  }

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

  .lookup-bar .btn-pill {
    min-width: 86px;
    padding-inline: 18px;
  }

  .lookup-bar input {
    padding-inline: 14px;
    font-size: 14px;
  }

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

  body.nav-open {
    overflow: hidden;
  }
}

body.nav-open .nav-toggle span:nth-child(2) {
  opacity: 0;
}

body.nav-open .nav-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

body.nav-open .nav-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}