:root {
  color-scheme: dark;
  --bg: #06111f;
  --bg-deep: #030a12;
  --side: #07182a;
  --surface: #0c1e32;
  --surface-2: #102840;
  --surface-3: #0a1a2c;
  --line: #1d4161;
  --line-soft: #14334f;
  --primary: #45c8ff;
  --primary-strong: #22adf3;
  --primary-soft: #45c8ff1c;
  --blue: #6c9dff;
  --violet: #aa8cff;
  --success: #50e3a4;
  --warn: #ffc260;
  --danger: #ff7688;
  --text: #e8f6ff;
  --text-strong: #f5fbff;
  --sub: #a8bed2;
  --muted: #7693ad;
  --shadow: 0 28px 80px #0008;
  --radius: 18px;
  --page: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
  background: var(--bg);
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 50% -12%, #12638d38 0, transparent 34rem),
    linear-gradient(90deg, #45c8ff08 1px, transparent 1px),
    linear-gradient(#45c8ff08 1px, transparent 1px),
    var(--bg);
  background-size: auto, 40px 40px, 40px 40px, auto;
  color: var(--text);
  font: 14px/1.7 "Microsoft YaHei UI", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 0 60%, #06111ff5 100%);
}

a {
  color: inherit;
}

img,
svg {
  max-width: 100%;
}

button,
a,
summary {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  left: 18px;
  top: -80px;
  z-index: 1000;
  padding: 10px 16px;
  border-radius: 8px;
  background: var(--primary);
  color: #02111d;
  font-weight: 800;
  text-decoration: none;
  transition: top .2s ease;
}

.skip-link:focus {
  top: 18px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid #1d416180;
  background: #06111ee8;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.header-inner,
.section,
.section-grid,
.trust-strip,
.final-cta,
.footer-main,
.footer-bottom {
  width: min(var(--page), calc(100% - 40px));
  margin-inline: auto;
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex: 0 0 auto;
  color: var(--text);
  text-decoration: none;
}

.brand-mark,
.mini-logo {
  position: relative;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  overflow: hidden;
  border: 1px solid #6dd8ff66;
  border-radius: 12px;
  background: linear-gradient(140deg, #2a70e1, #0b8bb7);
  box-shadow: 0 8px 26px #087aad40, inset 0 1px #ffffff55;
  color: white;
  font-size: 23px;
  font-weight: 900;
}

.brand-mark span {
  position: absolute;
  right: 4px;
  bottom: 4px;
  width: 7px;
  height: 7px;
  border: 1px solid #d7ffed;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 12px var(--success);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 15px;
  line-height: 1.25;
}

.brand small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.2;
}

.top-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-width: 0;
  margin-left: auto;
}

.top-nav a {
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--sub);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
}

.top-nav a:hover {
  background: var(--primary-soft);
  color: var(--text);
}

.button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 9px 16px;
  background: #10283f;
  color: var(--text);
  font: inherit;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition: transform .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease;
}

.button:hover {
  border-color: var(--primary);
  background: #173a59;
  transform: translateY(-1px);
}

.button-small {
  min-height: 38px;
  flex: 0 0 auto;
  padding: 8px 13px;
  background: linear-gradient(135deg, #1e4fc7, #08719e);
  border-color: transparent;
  font-size: 12px;
}

.button-large {
  min-height: 52px;
  padding: 14px 22px;
  border-radius: 12px;
}

.button-primary {
  border-color: #43c9ff55;
  background: linear-gradient(135deg, #2763d7 0%, #087da8 100%);
  box-shadow: 0 12px 32px #0877ac3f, inset 0 1px #ffffff28;
}

.button-primary:hover {
  background: linear-gradient(135deg, #3573e8, #0793bd);
  box-shadow: 0 15px 38px #0877ac58, 0 0 0 1px #45c8ff66;
}

.button-ghost {
  background: #091a2caa;
}

.section-grid.hero {
  display: grid;
  grid-template-columns: minmax(0, .94fr) minmax(520px, 1.06fr);
  align-items: center;
  gap: 54px;
  min-height: 690px;
  padding-block: 82px 72px;
}

.eyebrow {
  color: var(--primary);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1.7px;
  text-transform: uppercase;
}

.status-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 13px var(--success);
  vertical-align: 1px;
}

.hero h1 {
  max-width: 660px;
  margin: 18px 0 20px;
  color: var(--text-strong);
  font-size: clamp(44px, 5.2vw, 70px);
  font-weight: 850;
  line-height: 1.14;
  letter-spacing: -2.8px;
}

.hero h1 span {
  background: linear-gradient(90deg, #e9f9ff, var(--primary) 55%, #86e6ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  max-width: 620px;
  margin: 0;
  color: var(--sub);
  font-size: 16px;
  line-height: 1.95;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 580px;
  margin: 32px 0 0;
  padding: 17px 0;
  list-style: none;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.hero-meta li {
  padding: 0 16px;
  border-left: 1px solid var(--line-soft);
}

.hero-meta li:first-child {
  padding-left: 0;
  border-left: 0;
}

.hero-meta strong,
.hero-meta span {
  display: block;
}

.hero-meta strong {
  color: var(--text);
  font-size: 14px;
}

.hero-meta span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 10px;
}

.download-note {
  max-width: 590px;
  margin: 17px 0 0;
  color: var(--muted);
  font-size: 11px;
}

.download-note a,
.text-link {
  color: var(--primary);
  text-decoration: none;
}

.download-note a:hover,
.text-link:hover {
  text-decoration: underline;
}

.product-stage {
  position: relative;
  min-height: 520px;
  display: grid;
  align-items: center;
}

.product-stage::before {
  content: "";
  position: absolute;
  inset: 8% 8%;
  border-radius: 50%;
  background: radial-gradient(circle, #1598d12b, #0b4a6915 45%, transparent 70%);
  filter: blur(5px);
}

.orbit {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 510px;
  height: 510px;
  border: 1px solid #45c8ff17;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.orbit::before,
.orbit::after {
  content: "";
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 18px var(--primary);
}

.orbit::before {
  left: 15%;
  top: 12%;
}

.orbit::after {
  right: 5%;
  bottom: 28%;
}

.orbit-two {
  width: 400px;
  height: 400px;
  border-style: dashed;
  transform: translate(-50%, -50%) rotate(28deg);
}

.app-window {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 590px;
  margin: auto;
  overflow: hidden;
  border: 1px solid #285a80;
  border-radius: 17px;
  background: #07182af2;
  box-shadow: var(--shadow), 0 0 80px #0781b827, inset 0 1px #ffffff0d;
  transform: perspective(1100px) rotateY(-3deg) rotateX(1deg);
}

.app-titlebar {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 49px;
  padding: 8px 13px;
  border-bottom: 1px solid var(--line);
  background: #071b2ef2;
  font-size: 11px;
}

.mini-logo {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  font-size: 15px;
}

.window-dots {
  display: flex;
  gap: 11px;
  margin-left: auto;
}

.window-dots i {
  width: 8px;
  height: 8px;
  border: 1px solid var(--muted);
  border-radius: 2px;
}

.window-dots i:first-child {
  width: 10px;
  height: 1px;
  margin-top: 4px;
  border: 0;
  border-radius: 0;
  background: var(--muted);
}

.window-dots i:last-child {
  border: 0;
  background: linear-gradient(45deg, transparent 43%, var(--muted) 45% 55%, transparent 57%), linear-gradient(-45deg, transparent 43%, var(--muted) 45% 55%, transparent 57%);
}

.app-body {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  min-height: 392px;
}

.app-sidebar {
  display: grid;
  align-content: start;
  gap: 21px;
  padding: 22px 17px;
  border-right: 1px solid var(--line);
  background: #061524;
}

.app-sidebar b {
  width: 36px;
  height: 6px;
  margin: 0 auto 7px;
  border-radius: 999px;
  background: #1b4566;
}

.app-sidebar span {
  position: relative;
  width: 38px;
  height: 28px;
  border-radius: 7px;
}

.app-sidebar span::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 8px;
  width: 12px;
  height: 12px;
  border: 1px solid #7799b5;
  border-radius: 3px;
}

.app-sidebar span.active {
  background: #153c5c;
}

.app-sidebar span.active::after {
  content: "";
  position: absolute;
  left: -17px;
  top: 5px;
  width: 2px;
  height: 18px;
  background: var(--primary);
  box-shadow: 0 0 8px var(--primary);
}

.scan-panel {
  padding: 21px 24px 23px;
  background:
    linear-gradient(90deg, #45c8ff08 1px, transparent 1px),
    linear-gradient(#45c8ff08 1px, transparent 1px),
    #081a2c;
  background-size: 24px 24px;
}

.scan-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--primary);
  font-weight: 800;
}

.scan-head small {
  color: var(--muted);
  font-size: 9px;
  font-weight: 400;
}

.scanner {
  position: relative;
  height: 143px;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.scanner-ring {
  width: 124px;
  height: 124px;
  display: grid;
  place-items: center;
  border: 1px solid #45c8ff55;
  border-radius: 50%;
  background: radial-gradient(circle, #0e3754 0 35%, #0b253b 36% 50%, transparent 51%);
  box-shadow: 0 0 0 13px #45c8ff0a, 0 0 0 25px #45c8ff07, inset 0 0 28px #45c8ff22;
}

.scanner-ring::before,
.scanner-ring::after {
  content: "";
  position: absolute;
  width: 124px;
  height: 1px;
  background: linear-gradient(90deg, transparent, #45c8ff66, transparent);
}

.scanner-ring::after {
  transform: rotate(90deg);
}

.scanner-ring div {
  position: relative;
  z-index: 2;
  text-align: center;
}

.scanner-ring strong,
.scanner-ring small {
  display: block;
}

.scanner-ring strong {
  color: var(--primary);
  font: 800 27px/1 "Cascadia Mono", Consolas, monospace;
}

.scanner-ring small {
  margin-top: 7px;
  color: var(--muted);
  font-size: 8px;
}

.scan-line {
  position: absolute;
  left: 9%;
  right: 9%;
  top: 51%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  box-shadow: 0 0 14px var(--primary);
}

.scan-items {
  display: grid;
  gap: 6px;
}

.scan-items > div {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr) auto;
  align-items: center;
  gap: 9px;
  min-height: 41px;
  padding: 6px 10px;
  border: 1px solid #173954;
  border-radius: 8px;
  background: #0b2034dd;
}

.scan-icon {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: #45c8ff18;
  color: var(--primary);
  font-size: 8px;
}

.scan-icon.green {
  background: #50e3a418;
  color: var(--success);
}

.scan-icon.violet {
  background: #aa8cff18;
  color: var(--violet);
}

.scan-items p {
  margin: 0;
  line-height: 1.25;
}

.scan-items strong,
.scan-items small {
  display: block;
}

.scan-items strong {
  font-size: 10px;
}

.scan-items small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 8px;
}

.scan-items em {
  color: var(--success);
  font-size: 8px;
  font-style: normal;
}

.scan-action {
  width: 72%;
  margin: 12px auto 0;
  padding: 8px;
  border: 1px solid #45c8ff55;
  border-radius: 8px;
  background: linear-gradient(90deg, #255ed2, #08779f);
  color: white;
  font-size: 9px;
  font-weight: 800;
  text-align: center;
}

.float-card {
  position: absolute;
  z-index: 3;
  display: grid;
  grid-template-columns: 31px auto;
  gap: 0 9px;
  min-width: 174px;
  padding: 12px 14px;
  border: 1px solid #285879;
  border-radius: 11px;
  background: #0a2035ee;
  box-shadow: 0 14px 34px #0007;
  backdrop-filter: blur(8px);
}

.float-card > span {
  grid-row: 1 / 3;
  display: grid;
  place-items: center;
  width: 31px;
  height: 31px;
  border-radius: 8px;
  background: #50e3a418;
  color: var(--success);
  font-weight: 900;
}

.float-card b {
  font-size: 10px;
}

.float-card small {
  color: var(--muted);
  font-size: 8px;
}

.float-safe {
  right: -12px;
  top: 74px;
}

.float-local {
  left: -8px;
  bottom: 68px;
}

.float-local > span {
  background: #45c8ff18;
  color: var(--primary);
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  overflow: hidden;
  margin-bottom: 116px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(135deg, #0d2238dd, #081a2ddd);
  box-shadow: inset 0 1px #ffffff08;
}

.trust-strip > div {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0 12px;
  padding: 18px 22px;
  border-left: 1px solid var(--line-soft);
}

.trust-strip > div:first-child {
  border-left: 0;
}

.trust-strip > div > span {
  grid-row: 1 / 3;
  color: #45c8ff3d;
  font: 800 25px/1.4 "Cascadia Mono", Consolas, monospace;
}

.trust-strip strong {
  font-size: 12px;
}

.trust-strip small {
  color: var(--muted);
  font-size: 9px;
}

.section {
  margin-bottom: 122px;
}

.section-heading {
  max-width: 760px;
  margin: 0 auto 40px;
  text-align: center;
}

.section-heading-left {
  max-width: 720px;
  margin-inline: 0;
  text-align: left;
}

.section-heading h2,
.release-copy h2,
.final-cta h2 {
  margin: 11px 0 12px;
  color: var(--text-strong);
  font-size: clamp(30px, 4vw, 43px);
  line-height: 1.3;
  letter-spacing: -1.2px;
}

.section-heading p,
.release-copy > p,
.final-cta p {
  margin: 0;
  color: var(--sub);
  font-size: 14px;
  line-height: 1.9;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.feature-card {
  position: relative;
  min-height: 250px;
  overflow: hidden;
  padding: 25px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: linear-gradient(145deg, #0d2238ee, #081a2ded);
  box-shadow: inset 0 1px #ffffff07;
  transition: border-color .25s ease, transform .25s ease, box-shadow .25s ease;
}

.feature-card::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -90px;
  width: 170px;
  height: 170px;
  border: 1px solid #45c8ff11;
  border-radius: 50%;
  box-shadow: 0 0 0 25px #45c8ff06, 0 0 0 50px #45c8ff04;
  pointer-events: none;
}

.feature-card:hover {
  border-color: #2c6087;
  transform: translateY(-3px);
  box-shadow: 0 18px 50px #0004, inset 0 1px #ffffff10;
}

.feature-wide {
  grid-column: span 2;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) 190px;
  align-items: center;
  gap: 22px;
}

.feature-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  margin-bottom: 20px;
  border: 1px solid #45c8ff44;
  border-radius: 13px;
  background: #45c8ff15;
  color: var(--primary);
  font-size: 25px;
  font-weight: 300;
  box-shadow: inset 0 0 18px #45c8ff0d;
}

.feature-wide .feature-icon {
  width: 60px;
  height: 60px;
  margin: 0;
  font-size: 31px;
}

.feature-icon.green {
  border-color: #50e3a444;
  background: #50e3a415;
  color: var(--success);
}

.feature-icon.violet {
  border-color: #aa8cff44;
  background: #aa8cff15;
  color: var(--violet);
}

.feature-icon.blue {
  border-color: #6c9dff44;
  background: #6c9dff15;
  color: var(--blue);
}

.feature-icon.amber {
  border-color: #ffc26044;
  background: #ffc26015;
  color: var(--warn);
}

.feature-icon.rose {
  border-color: #ff768844;
  background: #ff768815;
  color: var(--danger);
}

.card-label {
  color: var(--muted);
  font: 700 9px/1 "Cascadia Mono", Consolas, monospace;
  letter-spacing: 1.2px;
}

.feature-card h3 {
  margin: 10px 0 9px;
  font-size: 19px;
}

.feature-card p {
  position: relative;
  z-index: 1;
  margin: 0;
  color: var(--sub);
  font-size: 12px;
  line-height: 1.9;
}

.mini-terminal {
  display: grid;
  gap: 8px;
  padding: 17px;
  border: 1px solid #1d4563;
  border-radius: 12px;
  background: #061522;
}

.mini-terminal span {
  color: var(--muted);
  font-size: 8px;
}

.mini-terminal i {
  position: relative;
  display: block;
  height: 4px;
  overflow: hidden;
  border-radius: 999px;
  background: #12324c;
}

.mini-terminal i::after {
  content: "";
  position: absolute;
  inset: 0 28% 0 0;
  border-radius: inherit;
  background: linear-gradient(90deg, #276bd2, var(--primary));
}

.mini-terminal i:nth-of-type(2)::after {
  right: 47%;
  background: linear-gradient(90deg, #248366, var(--success));
}

.mini-terminal i:nth-of-type(3)::after {
  right: 62%;
  background: linear-gradient(90deg, #775fc4, var(--violet));
}

.scan-section {
  position: relative;
  padding: 54px;
  border: 1px solid #24577d;
  border-radius: 24px;
  background:
    radial-gradient(circle at 90% 8%, #148eb52b, transparent 28%),
    linear-gradient(145deg, #0e263eee, #08192bed);
  box-shadow: 0 24px 70px #0004, inset 0 1px #ffffff0a;
}

.scan-section::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 18px;
  width: 36px;
  height: 36px;
  border-left: 1px solid var(--primary);
  border-top: 1px solid var(--primary);
  opacity: .4;
}

.scan-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(300px, .55fr);
  gap: 38px;
  align-items: start;
}

.scan-categories {
  display: grid;
}

.scan-categories article {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 18px;
  padding: 24px 8px;
  border-top: 1px solid var(--line-soft);
}

.scan-categories article:first-child {
  border-top: 0;
}

.category-index {
  color: #45c8ff42;
  font: 800 25px/1.5 "Cascadia Mono", Consolas, monospace;
}

.scan-categories h3 {
  margin: 0 0 7px;
  font-size: 16px;
}

.scan-categories p {
  margin: 0;
  color: var(--sub);
  font-size: 12px;
}

.boundary-card {
  position: sticky;
  top: 98px;
  padding: 28px;
  border: 1px solid #2a5c79;
  border-radius: 18px;
  background: #081a2ddd;
  box-shadow: 0 18px 45px #0004;
}

.radar {
  position: relative;
  display: grid;
  place-items: center;
  width: 72px;
  height: 72px;
  margin-bottom: 22px;
  overflow: hidden;
  border: 1px solid #45c8ff55;
  border-radius: 50%;
  background: radial-gradient(circle, transparent 0 21%, #45c8ff22 22% 23%, transparent 24% 47%, #45c8ff20 48% 49%, transparent 50%);
}

.radar::before,
.radar::after {
  content: "";
  position: absolute;
  width: 100%;
  height: 1px;
  background: #45c8ff38;
}

.radar::after {
  transform: rotate(90deg);
}

.radar i {
  position: absolute;
  left: 50%;
  bottom: 50%;
  width: 34px;
  height: 34px;
  background: linear-gradient(25deg, #45c8ff36, transparent 68%);
  transform-origin: left bottom;
  transform: rotate(28deg);
}

.boundary-card h3 {
  margin: 0 0 15px;
  font-size: 20px;
}

.check-list {
  display: grid;
  gap: 11px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 23px;
  color: var(--sub);
  font-size: 12px;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 900;
}

.boundary-card > p {
  margin: 21px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
  color: var(--muted);
  font-size: 10px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  position: relative;
  min-height: 218px;
  padding: 0 20px;
  border-left: 1px solid var(--line-soft);
}

.steps li:first-child {
  padding-left: 0;
  border-left: 0;
}

.steps li:last-child {
  padding-right: 0;
}

.steps li > span {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-bottom: 24px;
  border: 1px solid #2b6389;
  border-radius: 10px;
  background: var(--primary-soft);
  color: var(--primary);
  font: 800 15px "Cascadia Mono", Consolas, monospace;
}

.steps h3 {
  margin: 0 0 8px;
  font-size: 15px;
}

.steps p {
  margin: 0;
  color: var(--sub);
  font-size: 11px;
  line-height: 1.8;
}

.guide-callout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 32px;
  padding: 19px 22px;
  border: 1px solid #276b59;
  border-radius: 13px;
  background: #0d292bdd;
}

.guide-callout > div {
  display: flex;
  align-items: center;
  gap: 14px;
}

.guide-callout > div > span {
  display: grid;
  place-items: center;
  width: 35px;
  height: 35px;
  flex: 0 0 auto;
  border: 1px solid #38a77f;
  border-radius: 50%;
  color: var(--success);
  font-weight: 800;
}

.guide-callout p {
  margin: 0;
  color: var(--sub);
  font-size: 11px;
  line-height: 1.7;
}

.guide-callout strong {
  color: var(--text);
}

.scenario-section {
  padding-top: 12px;
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.scenario-grid article {
  display: grid;
  grid-template-columns: 50px minmax(0, 1fr);
  gap: 0 16px;
  align-items: center;
  padding: 22px;
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  background: #0a1d30d9;
}

.scenario-grid article > span {
  grid-row: 1 / 3;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 13px;
  background: #45c8ff12;
  color: var(--primary);
  font: 800 15px "Cascadia Mono", Consolas, monospace;
}

.scenario-grid h3 {
  margin: 0 0 5px;
  font-size: 14px;
}

.scenario-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.7;
}

.release-section {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(360px, .85fr);
  gap: 52px;
  align-items: center;
  padding: 54px;
  border: 1px solid #2b5d7d;
  border-radius: 24px;
  background: radial-gradient(circle at 0 100%, #13506a2a, transparent 30%), linear-gradient(140deg, #0d253ddd, #071827ee);
  box-shadow: 0 25px 70px #0004;
}

.release-table {
  margin-top: 28px;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: 13px;
  background: #071827bb;
}

.release-table > div {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 18px;
  padding: 12px 16px;
  border-top: 1px solid var(--line-soft);
}

.release-table > div:first-child {
  border-top: 0;
}

.release-table span {
  color: var(--muted);
  font-size: 11px;
}

.release-table strong {
  font-size: 11px;
  text-align: right;
}

.hash-pending {
  color: var(--warn);
  font-family: "Cascadia Mono", Consolas, monospace;
}

.release-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 22px;
}

.release-actions .text-link {
  font-size: 11px;
}

.verify-card {
  padding: 25px;
  border: 1px solid #24577d;
  border-radius: 17px;
  background: #061522;
  box-shadow: inset 0 1px #ffffff09;
}

.verify-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.verify-head > span {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--primary-soft);
  color: var(--primary);
  font: 800 18px "Cascadia Mono", Consolas, monospace;
}

.verify-head h3,
.verify-head p {
  margin: 0;
}

.verify-head h3 {
  font-size: 14px;
}

.verify-head p {
  color: var(--muted);
  font-size: 9px;
}

.verify-card pre {
  overflow-x: auto;
  margin: 0;
  padding: 15px;
  border: 1px solid #173b55;
  border-radius: 10px;
  background: #030b12;
  color: #bceeff;
  font: 11px/1.7 "Cascadia Mono", Consolas, monospace;
  white-space: pre-wrap;
  word-break: break-all;
}

.verify-card ol {
  display: grid;
  gap: 7px;
  margin: 18px 0 0;
  padding-left: 20px;
  color: var(--sub);
  font-size: 10px;
}

.signature-note {
  margin: 18px 0 0;
  padding-top: 15px;
  border-top: 1px solid var(--line-soft);
  color: var(--warn);
  font-size: 9px;
}

.security-section {
  padding-top: 5px;
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.security-grid article {
  padding: 24px;
  border: 1px solid #1c4d49;
  border-radius: 16px;
  background: linear-gradient(145deg, #0c282b, #081c28);
}

.shield {
  display: grid;
  place-items: center;
  width: 42px;
  height: 46px;
  margin-bottom: 18px;
  border: 1px solid #50e3a455;
  border-radius: 15px 15px 19px 19px;
  background: #50e3a412;
  color: var(--success);
  font-weight: 900;
}

.security-grid h3 {
  margin: 0 0 9px;
  font-size: 15px;
}

.security-grid p {
  margin: 0;
  color: var(--sub);
  font-size: 11px;
}

.privacy-note {
  margin-top: 14px;
  padding: 17px 20px;
  border: 1px solid #70552b;
  border-radius: 12px;
  background: #2b2215b8;
  color: #d8c49d;
  font-size: 11px;
}

.privacy-note strong {
  color: var(--warn);
}

.faq-section {
  max-width: 940px;
}

.faq-list {
  border-top: 1px solid var(--line);
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 70px;
  padding: 18px 5px;
  cursor: pointer;
  color: var(--text);
  font-size: 14px;
  font-weight: 700;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary i {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--primary);
  font-style: normal;
  transition: transform .2s ease, background .2s ease;
}

.faq-list details[open] summary i {
  background: var(--primary-soft);
  transform: rotate(45deg);
}

.faq-list details > p {
  max-width: 820px;
  margin: -4px 0 22px;
  padding-right: 50px;
  color: var(--sub);
  font-size: 12px;
  line-height: 1.9;
}

.final-cta {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  overflow: hidden;
  margin-bottom: 95px;
  padding: 46px 50px;
  border: 1px solid #2c6d91;
  border-radius: 22px;
  background: radial-gradient(circle at 82% 50%, #45c8ff22, transparent 26%), linear-gradient(135deg, #102b47, #081a2d);
  box-shadow: 0 24px 70px #0005;
}

.final-cta::after {
  content: "";
  position: absolute;
  right: 13%;
  width: 260px;
  height: 260px;
  border: 1px solid #45c8ff1c;
  border-radius: 50%;
  box-shadow: 0 0 0 35px #45c8ff0a, 0 0 0 70px #45c8ff07;
  pointer-events: none;
}

.final-cta > * {
  position: relative;
  z-index: 1;
}

.final-cta h2 {
  margin-bottom: 7px;
  font-size: 34px;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #04101bd9;
}

.footer-main {
  min-height: 130px;
  display: flex;
  align-items: center;
  gap: 38px;
}

.footer-brand {
  margin-right: auto;
}

.footer-main nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 18px;
}

.footer-main nav a {
  color: var(--muted);
  font-size: 11px;
  text-decoration: none;
}

.footer-main nav a:hover {
  color: var(--primary);
}

.footer-bottom {
  min-height: 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid #102b43;
  color: #58758e;
  font-size: 9px;
}

.filing-link {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding: 4px 10px;
  border: 1px solid #173b56;
  border-radius: 999px;
  background: #071a2a;
  color: var(--muted);
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .2s ease, color .2s ease, background .2s ease;
}

.filing-link::before {
  content: "备案";
  margin-right: 7px;
  color: #45c8ff99;
  font: 700 8px/1 "Microsoft YaHei UI", sans-serif;
  letter-spacing: 1px;
}

.filing-link:hover {
  border-color: #2b6a90;
  background: #0b263b;
  color: var(--primary);
}

@media (max-width: 1100px) {
  .top-nav a {
    padding-inline: 8px;
    font-size: 11px;
  }

  .section-grid.hero {
    grid-template-columns: minmax(0, .92fr) minmax(450px, 1.08fr);
    gap: 28px;
  }

  .float-safe {
    right: -3px;
  }

  .float-local {
    left: -3px;
  }

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

  .feature-wide {
    grid-column: span 2;
  }

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

  .steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px 0;
  }

  .steps li:nth-child(4) {
    border-left: 0;
  }

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

@media (max-width: 900px) {
  .header-inner {
    flex-wrap: wrap;
    gap: 0 18px;
    padding-block: 9px;
  }

  .top-nav {
    order: 3;
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    padding-top: 7px;
    scrollbar-width: thin;
  }

  .button-small {
    margin-left: auto;
  }

  .section-grid.hero {
    grid-template-columns: 1fr;
    min-height: 0;
    padding-top: 65px;
  }

  .hero-copy {
    max-width: 720px;
  }

  .product-stage {
    width: min(630px, 100%);
    margin-inline: auto;
  }

  .trust-strip {
    grid-template-columns: repeat(2, 1fr);
  }

  .trust-strip > div:nth-child(3) {
    border-left: 0;
    border-top: 1px solid var(--line-soft);
  }

  .trust-strip > div:nth-child(4) {
    border-top: 1px solid var(--line-soft);
  }

  .scan-section,
  .release-section {
    padding: 38px;
  }

  .scan-layout,
  .release-section {
    grid-template-columns: 1fr;
  }

  .boundary-card {
    position: static;
  }

  .release-section {
    gap: 34px;
  }

  .footer-main {
    flex-wrap: wrap;
    padding-block: 28px;
  }

  .footer-brand {
    width: 100%;
  }

  .footer-main nav {
    justify-content: flex-start;
  }
}

@media (max-width: 680px) {
  html {
    scroll-padding-top: 126px;
  }

  .header-inner,
  .section,
  .section-grid,
  .trust-strip,
  .final-cta,
  .footer-main,
  .footer-bottom {
    width: min(100% - 24px, var(--page));
  }

  .site-header {
    position: relative;
  }

  .header-inner {
    min-height: 66px;
  }

  .brand strong {
    font-size: 13px;
  }

  .brand small {
    display: none;
  }

  .brand-mark {
    width: 37px;
    height: 37px;
    border-radius: 10px;
    font-size: 20px;
  }

  .button-small {
    min-height: 36px;
    padding-inline: 10px;
    font-size: 10px;
  }

  .top-nav {
    margin-inline: -4px;
    padding-bottom: 2px;
  }

  .top-nav a {
    min-height: 40px;
    display: inline-flex;
    align-items: center;
    font-size: 10px;
  }

  .section-grid.hero {
    padding-block: 52px 44px;
  }

  .hero h1 {
    margin-top: 13px;
    font-size: clamp(39px, 13vw, 56px);
    letter-spacing: -2px;
  }

  .hero-lead {
    font-size: 14px;
  }

  .hero-actions {
    display: grid;
  }

  .hero-actions .button {
    width: 100%;
  }

  .hero-meta {
    gap: 0;
  }

  .hero-meta li {
    padding-inline: 10px;
  }

  .product-stage {
    min-height: 425px;
  }

  .orbit {
    width: 390px;
    height: 390px;
  }

  .orbit-two {
    width: 310px;
    height: 310px;
  }

  .app-window {
    transform: none;
  }

  .app-body {
    grid-template-columns: 48px minmax(0, 1fr);
    min-height: 345px;
  }

  .app-sidebar {
    padding-inline: 6px;
  }

  .app-sidebar b,
  .app-sidebar span {
    width: 32px;
  }

  .app-sidebar span.active::after {
    left: -6px;
  }

  .scan-panel {
    padding: 17px 12px;
  }

  .scanner {
    height: 127px;
  }

  .scanner-ring {
    width: 108px;
    height: 108px;
  }

  .scanner-ring::before,
  .scanner-ring::after {
    width: 108px;
  }

  .float-card {
    display: none;
  }

  .trust-strip {
    margin-bottom: 88px;
  }

  .trust-strip > div {
    padding: 15px 13px;
  }

  .trust-strip > div > span {
    font-size: 19px;
  }

  .section {
    margin-bottom: 90px;
  }

  .section-heading {
    margin-bottom: 30px;
    text-align: left;
  }

  .section-heading h2,
  .release-copy h2 {
    font-size: 30px;
  }

  .feature-grid,
  .scenario-grid,
  .security-grid {
    grid-template-columns: 1fr;
  }

  .feature-wide {
    grid-column: auto;
    display: block;
  }

  .feature-wide .feature-icon {
    width: 46px;
    height: 46px;
    margin-bottom: 20px;
    font-size: 25px;
  }

  .mini-terminal {
    margin-top: 18px;
  }

  .scan-section,
  .release-section {
    width: calc(100% - 24px);
    padding: 28px 20px;
    border-radius: 19px;
  }

  .scan-section::before {
    display: none;
  }

  .scan-categories article {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 10px;
  }

  .category-index {
    font-size: 19px;
  }

  .boundary-card {
    padding: 22px;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .steps li,
  .steps li:first-child,
  .steps li:last-child,
  .steps li:nth-child(4) {
    min-height: 0;
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 16px;
    padding: 19px 0;
    border-top: 1px solid var(--line-soft);
    border-left: 0;
  }

  .steps li:first-child {
    border-top: 0;
  }

  .steps li > span {
    margin: 0;
  }

  .guide-callout {
    display: grid;
  }

  .guide-callout .button {
    width: 100%;
  }

  .scenario-grid article {
    padding: 18px;
  }

  .release-table > div {
    grid-template-columns: 105px minmax(0, 1fr);
    gap: 10px;
  }

  .release-actions {
    display: grid;
    text-align: center;
  }

  .verify-card {
    padding: 19px;
  }

  .faq-list details > p {
    padding-right: 4px;
  }

  .final-cta {
    display: grid;
    margin-bottom: 65px;
    padding: 34px 25px;
  }

  .final-cta::after {
    right: -90px;
  }

  .final-cta h2 {
    font-size: 28px;
  }

  .footer-main {
    gap: 24px;
  }

  .footer-main nav {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    width: 100%;
  }

  .footer-bottom {
    min-height: 88px;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 3px;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
}

@media (forced-colors: active) {
  .button,
  .feature-card,
  .scan-section,
  .release-section,
  .security-grid article,
  .trust-strip,
  .app-window {
    border: 1px solid CanvasText;
  }

  .hero h1 span {
    color: LinkText;
  }
}