:root {
  --brand: #f26430;
  --brand-deep: #c9471a;
  --brand-soft: #fff0e8;
  --ink: #172033;
  --ink-deep: #0e1524;
  --ink-soft: #4b5565;
  --muted: #717b8c;
  --canvas: #f6f5f2;
  --surface: #ffffff;
  --line: #e5e7eb;
  --trust: #287f75;
  --trust-light: #64c8b4;
  --dark-surface: #111827;
  --dark-surface-2: #182235;
  --container: 1200px;
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 30px;
  --shadow-card: 0 18px 60px rgba(23, 32, 51, .08);
  --shadow-dark: 0 28px 80px rgba(8, 13, 24, .28);
  --ease-out: cubic-bezier(.22, 1, .36, 1);
  --ease-spring: cubic-bezier(.16, 1, .3, 1);
  --header-height: 82px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--canvas);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.menu-open { overflow: hidden; }

a { color: inherit; text-decoration: none; }
button, a { touch-action: manipulation; }
button { font: inherit; }
svg { display: block; }

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.icon-sprite symbol {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.container {
  width: min(calc(100% - 48px), var(--container));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 2000;
  padding: 12px 16px;
  color: #fff;
  background: var(--ink);
  border-radius: 10px;
  transform: translateY(-160%);
  transition: transform 180ms ease;
}

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

:focus-visible {
  outline: 3px solid rgba(242, 100, 48, .48);
  outline-offset: 4px;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  height: var(--header-height);
  border-bottom: 1px solid rgba(255, 255, 255, .09);
  transition: background-color 240ms ease, border-color 240ms ease, box-shadow 240ms ease;
}

.site-header.is-scrolled {
  background: rgba(14, 21, 36, .9);
  border-bottom-color: rgba(255, 255, 255, .11);
  box-shadow: 0 12px 38px rgba(4, 9, 18, .16);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  align-items: center;
  height: 100%;
}

.brand {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  color: #fff;
}

.brand-mark {
  position: relative;
  display: inline-block;
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  overflow: hidden;
  background: var(--brand);
  border-radius: 14px 14px 14px 5px;
  box-shadow: 0 8px 24px rgba(242, 100, 48, .2);
}

.brand-mark span {
  position: absolute;
  top: 9px;
  left: 11px;
  width: 20px;
  height: 21px;
  border-right: 6px solid #fff;
  border-bottom: 6px solid #fff;
  border-radius: 1px 1px 8px 1px;
}

.brand-copy {
  display: grid;
  margin-left: 13px;
  line-height: 1;
}

.brand-copy strong {
  font-size: 21px;
  font-weight: 750;
  letter-spacing: .1em;
}

.brand-copy small {
  margin-top: 6px;
  color: rgba(255, 255, 255, .54);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .26em;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 38px;
  margin: 0 auto;
}

.desktop-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  color: rgba(255, 255, 255, .7);
  font-size: 14px;
  font-weight: 550;
  transition: color 180ms ease;
}

.desktop-nav a::after {
  position: absolute;
  right: 0;
  bottom: 7px;
  left: 0;
  height: 2px;
  background: var(--brand);
  border-radius: 999px;
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 220ms var(--ease-out);
}

.desktop-nav a:hover,
.desktop-nav a:focus-visible { color: #fff; }
.desktop-nav a:hover::after,
.desktop-nav a:focus-visible::after { transform: scaleX(1); transform-origin: left; }

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 17px;
  gap: 11px;
  color: #fff;
  background: rgba(255, 255, 255, .09);
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 13px;
  font-size: 14px;
  font-weight: 650;
  transition: background-color 180ms ease, border-color 180ms ease;
}

.header-cta svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; transition: transform 180ms var(--ease-out); }
.header-cta:hover { background: rgba(255, 255, 255, .15); border-color: rgba(255, 255, 255, .28); }
.header-cta:hover svg { transform: translateX(3px); }

.menu-button,
.mobile-menu { display: none; }

.hero {
  position: relative;
  min-height: 820px;
  overflow: hidden;
  color: #fff;
  background: linear-gradient(145deg, #0d1422 0%, #121c2e 58%, #0f1929 100%);
}

.hero-grid,
.cta-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .8), transparent 90%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .8), transparent 90%);
}

.hero-grid::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 32%, rgba(242, 100, 48, .065) 49%, transparent 66%);
  content: "";
  transform: translateX(-60%);
  animation: grid-scan 8s ease-in-out infinite;
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(4px);
  pointer-events: none;
}

.hero-glow-orange {
  top: -260px;
  left: -220px;
  width: 640px;
  height: 640px;
  background: radial-gradient(circle, rgba(242, 100, 48, .15), transparent 67%);
}

.hero-glow-teal {
  right: -240px;
  bottom: -260px;
  width: 680px;
  height: 680px;
  background: radial-gradient(circle, rgba(40, 127, 117, .15), transparent 68%);
}

.hero-layout {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, .88fr) minmax(520px, 1.12fr);
  align-items: center;
  gap: 68px;
  min-height: 820px;
  padding-top: calc(var(--header-height) + 38px);
  padding-bottom: 72px;
}

.eyebrow,
.section-kicker {
  display: flex;
  align-items: center;
  margin: 0 0 20px;
  color: var(--brand-deep);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.eyebrow { color: rgba(255, 255, 255, .65); }

.eyebrow-dot {
  width: 7px;
  height: 7px;
  margin-right: 10px;
  background: var(--trust-light);
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(100, 200, 180, .1), 0 0 18px rgba(100, 200, 180, .6);
  animation: live-pulse 2.4s ease-out infinite;
}

.hero h1 {
  max-width: 620px;
  margin: 0;
  color: #fff;
  font-size: clamp(50px, 5.2vw, 78px);
  font-weight: 760;
  letter-spacing: -.055em;
  line-height: 1.12;
}

.hero h1 span {
  color: #ffac82;
  background: linear-gradient(100deg, #ffbf9f 0%, #f77943 52%, #ffd3bd 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  max-width: 560px;
  margin: 26px 0 0;
  color: rgba(255, 255, 255, .62);
  font-size: 18px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 15px;
  font-size: 15px;
  font-weight: 700;
  transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease, box-shadow 180ms ease, transform 180ms var(--ease-spring);
}

.button:active { transform: scale(.98); }
.button svg { width: 19px; height: 19px; margin-left: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; transition: transform 180ms var(--ease-out); }
.button:hover svg { transform: translateX(4px); }

.button-primary {
  color: #fff;
  background: var(--brand);
  box-shadow: 0 16px 36px rgba(242, 100, 48, .22);
}

.button-primary:hover { background: #ff7040; box-shadow: 0 20px 42px rgba(242, 100, 48, .3); }

.button-ghost {
  color: rgba(255, 255, 255, .82);
  background: rgba(255, 255, 255, .055);
  border-color: rgba(255, 255, 255, .13);
}

.button-ghost:hover { color: #fff; background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .22); }

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  margin: 40px 0 0;
  padding: 0;
  gap: 10px 22px;
  list-style: none;
}

.hero-trust li {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  color: rgba(255, 255, 255, .55);
  font-size: 13px;
}

.hero-trust svg {
  width: 17px;
  height: 17px;
  margin-right: 8px;
  color: #7fd2c1;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.network-shell {
  position: relative;
  min-height: 612px;
  overflow: hidden;
  background: linear-gradient(150deg, rgba(255, 255, 255, .09), rgba(255, 255, 255, .025));
  border: 1px solid rgba(255, 255, 255, .13);
  border-radius: 30px;
  box-shadow: var(--shadow-dark), inset 0 1px 0 rgba(255, 255, 255, .08);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.network-shell::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, .04), transparent 60%);
  content: "";
  pointer-events: none;
  transform: translateX(-100%);
  animation: panel-sheen 7s ease-in-out infinite 1.5s;
}

.network-toolbar {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 58px;
  padding: 0 22px;
  border-bottom: 1px solid rgba(255, 255, 255, .09);
  color: rgba(255, 255, 255, .46);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 10px;
  letter-spacing: .12em;
}

.toolbar-status { display: flex; align-items: center; }
.toolbar-status span { width: 6px; height: 6px; margin-right: 8px; background: var(--trust-light); border-radius: 50%; box-shadow: 0 0 10px rgba(100, 200, 180, .8); }

.network-stage { position: relative; min-height: 552px; }

.network-map {
  position: absolute;
  top: 6px;
  left: 50%;
  width: 100%;
  height: 500px;
  transform: translateX(-50%);
}

.orbit { fill: none; stroke: rgba(255, 255, 255, .075); stroke-width: 1; stroke-dasharray: 4 8; transform-origin: 310px 244px; }
.orbit-one { animation: orbit-spin 28s linear infinite; }
.orbit-two { animation: orbit-spin 22s linear infinite reverse; }
.route { fill: none; stroke: url(#routeGradient); stroke-width: 1.5; stroke-dasharray: 7 12; opacity: .62; animation: route-flow 3.8s linear infinite; }
.route-b { animation-delay: -.9s; }
.route-c { animation-delay: -1.8s; }
.route-d { animation-delay: -2.7s; }
.route-pulse { fill: #64c8b4; filter: url(#softGlow); transform-origin: center; animation: endpoint-pulse 2.4s ease-out infinite; }
.pulse-b { animation-delay: -.6s; }
.pulse-c { animation-delay: -1.2s; }
.pulse-d { animation-delay: -1.8s; }
.map-grid-line { fill: none; stroke: rgba(255, 255, 255, .035); stroke-width: 1; stroke-dasharray: 2 10; }

.network-core {
  position: absolute;
  top: 136px;
  left: 50%;
  z-index: 2;
  display: flex;
  align-items: center;
  flex-direction: column;
  width: 180px;
  transform: translateX(-50%);
  text-align: center;
}

.core-ring {
  position: absolute;
  top: -24px;
  left: 50%;
  width: 112px;
  height: 112px;
  border: 1px solid rgba(242, 100, 48, .28);
  border-radius: 50%;
  transform: translateX(-50%);
  animation: core-ring 2.8s ease-out infinite;
}

.core-icon {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 66px;
  height: 66px;
  color: #fff;
  background: linear-gradient(145deg, #ff7744, var(--brand));
  border: 7px solid rgba(255, 255, 255, .08);
  border-radius: 22px;
  box-shadow: 0 14px 40px rgba(242, 100, 48, .35);
}

.core-icon svg { width: 29px; height: 29px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.network-core strong { margin-top: 13px; font-size: 14px; }
.network-core small { margin-top: 2px; color: rgba(255, 255, 255, .43); font-size: 10px; }

.worker-signal {
  position: absolute;
  z-index: 2;
  display: flex;
  align-items: center;
  min-width: 144px;
  padding: 9px 10px;
  background: rgba(15, 24, 40, .82);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 14px;
  box-shadow: 0 12px 30px rgba(2, 7, 15, .22);
  backdrop-filter: blur(10px);
}

.signal-a { top: 42px; left: 22px; }
.signal-b { top: 54px; right: 20px; }
.signal-c { top: 330px; right: 22px; }
.signal-d { top: 338px; left: 24px; }

.signal-icon { display: flex; align-items: center; justify-content: center; width: 34px; height: 34px; margin-right: 9px; color: #8cd8ca; background: rgba(100, 200, 180, .1); border-radius: 10px; }
.signal-icon svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.worker-signal > span:nth-child(2) { display: grid; line-height: 1.2; }
.worker-signal strong { color: rgba(255, 255, 255, .84); font-size: 11px; font-weight: 650; }
.worker-signal small { margin-top: 5px; color: rgba(255, 255, 255, .36); font-size: 9px; }
.worker-signal i { width: 6px; height: 6px; margin-left: auto; background: #64c8b4; border-radius: 50%; box-shadow: 0 0 10px rgba(100, 200, 180, .8); }

.event-console {
  position: absolute;
  right: 18px;
  bottom: 18px;
  left: 18px;
  z-index: 3;
  padding: 15px 18px 17px;
  background: rgba(8, 14, 25, .78);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 17px;
  box-shadow: 0 14px 36px rgba(0, 0, 0, .22);
  backdrop-filter: blur(14px);
}

.event-head { display: flex; align-items: center; justify-content: space-between; color: rgba(255, 255, 255, .62); font-size: 10px; font-weight: 650; letter-spacing: .06em; }
.event-live { color: #72d5bf; font-family: "SFMono-Regular", Consolas, monospace; font-size: 9px; }
.event-console ol { display: grid; grid-template-columns: repeat(4, 1fr); margin: 14px 0 0; padding: 0; list-style: none; }
.event-console li { position: relative; padding-top: 15px; color: rgba(255, 255, 255, .3); font-size: 9px; text-align: center; }
.event-console li::before { position: absolute; top: 3px; left: 50%; width: 100%; height: 1px; background: rgba(255, 255, 255, .1); content: ""; }
.event-console li:last-child::before { display: none; }
.event-console li span { position: absolute; top: 0; left: 50%; z-index: 1; width: 7px; height: 7px; background: #30394a; border: 2px solid #101827; border-radius: 50%; transform: translateX(-50%); }
.event-console li.is-done { color: rgba(255, 255, 255, .58); }
.event-console li.is-done span { background: var(--trust-light); }
.event-console li.is-done::before { background: rgba(100, 200, 180, .32); }
.event-console li.is-active { color: #ffc3a6; }
.event-console li.is-active span { background: var(--brand); box-shadow: 0 0 10px rgba(242, 100, 48, .8); }

.service-strip { color: #fff; background: var(--brand); }
.strip-inner { display: grid; grid-template-columns: auto minmax(40px, 1fr) auto; align-items: center; gap: 28px; min-height: 76px; }
.strip-inner > p { margin: 0; font-size: 14px; font-weight: 700; letter-spacing: .04em; }
.strip-line { height: 1px; background: rgba(255, 255, 255, .3); }
.strip-inner ul { display: flex; align-items: center; margin: 0; padding: 0; gap: 26px; list-style: none; }
.strip-inner li { color: rgba(255, 255, 255, .78); font-size: 11px; white-space: nowrap; }
.strip-inner li span { margin-right: 6px; color: #fff; font-family: "SFMono-Regular", Consolas, monospace; font-size: 9px; letter-spacing: .1em; }

.section { padding: 120px 0; }
.section-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, 440px); align-items: end; gap: 50px; margin-bottom: 54px; }
.section-head h2,
.workflow h2,
.worker-copy h2,
.cta-copy h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(38px, 4vw, 58px);
  font-weight: 740;
  letter-spacing: -.04em;
  line-height: 1.18;
}
.section-head > p,
.workflow-intro > p:not(.section-kicker),
.worker-copy > p:not(.section-kicker),
.cta-copy > p:not(.section-kicker) { margin: 0; color: var(--ink-soft); font-size: 16px; line-height: 1.85; }

.service-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.service-card {
  position: relative;
  display: flex;
  justify-content: space-between;
  flex-direction: column;
  min-height: 282px;
  padding: 24px;
  overflow: hidden;
  background: rgba(255, 255, 255, .82);
  border: 1px solid rgba(23, 32, 51, .07);
  border-radius: var(--radius-md);
  transition: transform 240ms var(--ease-spring), border-color 240ms ease, box-shadow 240ms ease;
}
.service-card:hover { border-color: rgba(242, 100, 48, .22); box-shadow: var(--shadow-card); transform: translateY(-6px); }
.service-card-top { display: flex; align-items: flex-start; justify-content: space-between; }
.service-index { color: #9aa1ad; font-family: "SFMono-Regular", Consolas, monospace; font-size: 10px; letter-spacing: .12em; }
.service-icon { display: flex; align-items: center; justify-content: center; width: 50px; height: 50px; color: var(--brand-deep); background: var(--brand-soft); border-radius: 16px; }
.service-icon svg { width: 25px; height: 25px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.service-card h3 { margin: 0; font-size: 21px; font-weight: 700; letter-spacing: -.02em; }
.service-card p { margin: 9px 0 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.service-card-featured { color: #fff; background: linear-gradient(145deg, #18233a, #101827); border-color: rgba(255, 255, 255, .04); }
.service-card-featured .service-index { color: rgba(255, 255, 255, .35); }
.service-card-featured .service-icon { color: #ffb18a; background: rgba(242, 100, 48, .13); }
.service-card-featured p { color: rgba(255, 255, 255, .54); }
.card-scan { position: absolute; top: 0; bottom: 0; left: -30%; width: 34%; background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .06), transparent); transform: skewX(-16deg); animation: card-scan 6s ease-in-out infinite; }
.service-card-more { background: #eef6f4; border-color: rgba(40, 127, 117, .1); }
.service-card-more .service-icon { color: var(--trust); background: rgba(40, 127, 117, .1); }

.workflow { position: relative; overflow: hidden; color: #fff; background: linear-gradient(145deg, #111827, #172238); }
.workflow::before { position: absolute; inset: 0; background: radial-gradient(circle at 14% 8%, rgba(242, 100, 48, .12), transparent 28%), radial-gradient(circle at 86% 88%, rgba(40, 127, 117, .12), transparent 26%); content: ""; }
.workflow-container { position: relative; z-index: 1; display: grid; grid-template-columns: .78fr 1.22fr; align-items: start; gap: 80px; }
.section-kicker-light { color: #ff9b6c; }
.workflow h2, .cta-copy h2 { color: #fff; }
.workflow-intro > p:not(.section-kicker) { max-width: 430px; margin-top: 24px; color: rgba(255, 255, 255, .58); }
.role-tabs { display: inline-flex; margin-top: 38px; padding: 5px; background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .09); border-radius: 14px; }
.role-tabs button { min-width: 112px; min-height: 44px; padding: 0 18px; color: rgba(255, 255, 255, .5); background: transparent; border: 0; border-radius: 10px; cursor: pointer; font-size: 14px; font-weight: 650; transition: color 180ms ease, background-color 180ms ease, box-shadow 180ms ease; }
.role-tabs button[aria-selected="true"] { color: #fff; background: var(--brand); box-shadow: 0 8px 20px rgba(242, 100, 48, .2); }
.flow-panel { padding: 10px 0 0; }
.flow-panel[hidden] { display: none; }
.flow-list { margin: 0; padding: 0; list-style: none; }
.flow-list li { position: relative; display: grid; grid-template-columns: 44px 54px 1fr; align-items: center; gap: 18px; min-height: 112px; padding: 18px 0; border-bottom: 1px solid rgba(255, 255, 255, .09); }
.flow-list li:first-child { padding-top: 0; }
.flow-list li:last-child { border-bottom: 0; }
.flow-number { color: rgba(255, 255, 255, .25); font-family: "SFMono-Regular", Consolas, monospace; font-size: 11px; letter-spacing: .08em; }
.flow-icon { display: flex; align-items: center; justify-content: center; width: 52px; height: 52px; color: #ffb08a; background: rgba(242, 100, 48, .1); border: 1px solid rgba(242, 100, 48, .14); border-radius: 16px; }
.flow-icon svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.flow-list h3 { margin: 0; color: #fff; font-size: 18px; font-weight: 680; }
.flow-list p { margin: 5px 0 0; color: rgba(255, 255, 255, .48); font-size: 14px; line-height: 1.65; }

.protection { background: #f9f8f6; }
.protection-grid { display: grid; grid-template-columns: 1.18fr .82fr .82fr; gap: 16px; }
.protection-card { display: flex; align-items: flex-start; min-height: 240px; padding: 28px; background: #fff; border: 1px solid rgba(23, 32, 51, .07); border-radius: var(--radius-md); }
.protection-card:not(.protection-main) { flex-direction: column; justify-content: space-between; }
.protection-main { position: relative; grid-row: span 2; min-height: 496px; overflow: hidden; color: #fff; background: linear-gradient(150deg, #141e32, #0f1726); border: 0; flex-direction: column; justify-content: flex-end; }
.protection-visual { position: absolute; top: 18px; right: 0; left: 0; height: 286px; }
.shield-ring { position: absolute; top: 50%; left: 50%; border: 1px solid rgba(255, 255, 255, .08); border-radius: 50%; transform: translate(-50%, -50%); }
.shield-ring-one { width: 240px; height: 240px; border-style: dashed; animation: orbit-spin 30s linear infinite; }
.shield-ring-two { width: 160px; height: 160px; border-color: rgba(242, 100, 48, .18); animation: orbit-spin 22s linear infinite reverse; }
.shield-core { position: absolute; top: 50%; left: 50%; display: flex; align-items: center; justify-content: center; width: 80px; height: 80px; color: #fff; background: var(--brand); border: 8px solid rgba(255, 255, 255, .05); border-radius: 26px; box-shadow: 0 18px 48px rgba(242, 100, 48, .25); transform: translate(-50%, -50%); }
.shield-core svg { width: 36px; height: 36px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.security-node { position: absolute; padding: 6px 10px; color: rgba(255, 255, 255, .57); background: rgba(255, 255, 255, .05); border: 1px solid rgba(255, 255, 255, .1); border-radius: 999px; font-family: "SFMono-Regular", Consolas, monospace; font-size: 9px; letter-spacing: .08em; }
.node-one { top: 36px; left: 80px; }
.node-two { top: 64px; right: 65px; }
.node-three { bottom: 52px; left: 56px; }
.node-four { right: 76px; bottom: 40px; }
.protection-copy { position: relative; z-index: 2; }
.card-label { color: #ff9b6c; font-size: 11px; font-weight: 700; letter-spacing: .12em; }
.protection-card h3 { margin: 10px 0 0; font-size: 20px; font-weight: 700; letter-spacing: -.02em; }
.protection-main h3 { color: #fff; font-size: 26px; }
.protection-card p { margin: 10px 0 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.protection-main p { color: rgba(255, 255, 255, .5); }
.feature-icon { display: flex; align-items: center; justify-content: center; width: 50px; height: 50px; color: var(--brand-deep); background: var(--brand-soft); border-radius: 16px; }
.feature-icon svg { width: 25px; height: 25px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.worker-section { overflow: hidden; background: var(--canvas); }
.worker-layout { display: grid; grid-template-columns: .86fr 1.14fr; align-items: center; gap: 100px; }
.worker-copy > p:not(.section-kicker) { max-width: 500px; margin-top: 24px; }
.worker-benefits { display: grid; margin: 36px 0 0; padding: 0; gap: 18px; list-style: none; }
.worker-benefits li { display: flex; align-items: center; }
.worker-benefits li > span { display: flex; align-items: center; justify-content: center; width: 46px; height: 46px; margin-right: 15px; color: var(--trust); background: rgba(40, 127, 117, .09); border-radius: 14px; }
.worker-benefits svg { width: 23px; height: 23px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.worker-benefits div { display: grid; line-height: 1.4; }
.worker-benefits strong { font-size: 15px; }
.worker-benefits small { margin-top: 4px; color: var(--muted); font-size: 12px; }
.worker-console { position: relative; min-height: 540px; padding: 28px; background: #fff; border: 1px solid rgba(23, 32, 51, .07); border-radius: 30px; box-shadow: var(--shadow-card); }
.console-top { display: flex; align-items: center; justify-content: space-between; }
.console-top > div { display: grid; }
.console-label { color: var(--muted); font-family: "SFMono-Regular", Consolas, monospace; font-size: 9px; letter-spacing: .14em; }
.console-top strong { margin-top: 4px; font-size: 22px; }
.online-chip { display: inline-flex; align-items: center; padding: 8px 11px; color: var(--trust); background: rgba(40, 127, 117, .08); border-radius: 999px; font-size: 11px; font-weight: 650; }
.online-chip i { width: 6px; height: 6px; margin-right: 7px; background: #3ead91; border-radius: 50%; box-shadow: 0 0 0 4px rgba(62, 173, 145, .11); }
.console-map { position: relative; height: 286px; margin-top: 24px; overflow: hidden; background-color: #f2f4f4; background-image: linear-gradient(rgba(23, 32, 51, .04) 1px, transparent 1px), linear-gradient(90deg, rgba(23, 32, 51, .04) 1px, transparent 1px); background-size: 36px 36px; border-radius: 20px; }
.console-map::after { position: absolute; inset: 0; background: radial-gradient(circle at 56% 48%, rgba(40, 127, 117, .1), transparent 34%); content: ""; }
.console-map > svg { position: absolute; inset: 20px 0 auto; width: 100%; height: 240px; fill: none; stroke: rgba(40, 127, 117, .16); stroke-width: 8; stroke-linecap: round; }
.console-map > svg path:nth-child(2) { stroke: rgba(242, 100, 48, .09); stroke-width: 5; }
.console-map > svg circle { fill: #fff; stroke: var(--brand); stroke-width: 3; }
.map-center { position: absolute; top: 50%; left: 50%; z-index: 2; display: flex; align-items: center; justify-content: center; width: 52px; height: 52px; color: #fff; background: var(--brand); border: 6px solid rgba(255, 255, 255, .88); border-radius: 50%; box-shadow: 0 9px 22px rgba(242, 100, 48, .25); transform: translate(-50%, -50%); }
.map-center::after { position: absolute; inset: -22px; border: 1px solid rgba(242, 100, 48, .18); border-radius: 50%; content: ""; animation: core-ring 2.8s ease-out infinite; }
.map-center svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.map-marker { position: absolute; z-index: 2; display: flex; align-items: center; padding: 6px 9px; background: rgba(255, 255, 255, .9); border: 1px solid rgba(23, 32, 51, .06); border-radius: 9px; box-shadow: 0 8px 20px rgba(23, 32, 51, .08); }
.marker-one { top: 58px; left: 22%; }
.marker-two { right: 14%; bottom: 45px; }
.map-marker span { width: 6px; height: 6px; margin-right: 6px; background: var(--trust); border-radius: 50%; }
.map-marker small { color: var(--ink-soft); font-family: "SFMono-Regular", Consolas, monospace; font-size: 9px; }
.job-card { position: absolute; right: 18px; bottom: 18px; left: 18px; z-index: 3; display: grid; grid-template-columns: 48px minmax(0, 1fr) 38px; align-items: center; gap: 12px; padding: 15px; background: rgba(255, 255, 255, .96); border: 1px solid rgba(23, 32, 51, .07); border-radius: 17px; box-shadow: 0 14px 36px rgba(23, 32, 51, .12); }
.job-icon { display: flex; align-items: center; justify-content: center; width: 48px; height: 48px; color: var(--trust); background: rgba(40, 127, 117, .09); border-radius: 14px; }
.job-icon svg, .job-arrow svg { width: 23px; height: 23px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.job-copy { min-width: 0; }
.job-copy > div { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.job-copy strong { font-size: 14px; }
.job-copy > div span { flex: 0 0 auto; color: var(--brand-deep); font-size: 10px; font-weight: 650; }
.job-copy p { margin: 2px 0 0; overflow: hidden; color: var(--muted); font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.job-copy small { display: flex; align-items: center; margin-top: 5px; color: #959ca7; font-size: 9px; }
.job-copy small svg { width: 12px; height: 12px; margin-right: 4px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.job-arrow { display: flex; align-items: center; justify-content: center; width: 36px; height: 36px; color: #fff; background: var(--brand); border-radius: 11px; }
.job-arrow svg { width: 17px; height: 17px; }

.cta-section { padding: 0 0 96px; background: var(--canvas); }
.cta-shell { position: relative; display: grid; grid-template-columns: 1fr .7fr; align-items: center; min-height: 470px; padding: 70px 78px; gap: 70px; overflow: hidden; color: #fff; background: linear-gradient(135deg, #101827 0%, #17243a 65%, #152f33 120%); border-radius: 32px; box-shadow: var(--shadow-dark); }
.cta-grid { background-size: 58px 58px; opacity: .65; }
.cta-copy, .mini-card { position: relative; z-index: 2; }
.cta-copy > p:not(.section-kicker) { max-width: 540px; margin-top: 22px; color: rgba(255, 255, 255, .57); }
.wechat-hint { display: inline-flex; align-items: center; min-height: 66px; margin-top: 32px; padding: 8px 18px 8px 9px; background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .11); border-radius: 17px; }
.wechat-icon { display: flex; align-items: center; justify-content: center; width: 48px; height: 48px; margin-right: 12px; color: #7dd2b3; background: rgba(125, 210, 179, .1); border-radius: 13px; }
.wechat-icon svg { width: 27px; height: 27px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.wechat-hint > span:last-child { display: grid; line-height: 1.2; }
.wechat-hint small { color: rgba(255, 255, 255, .42); font-size: 10px; }
.wechat-hint strong { margin-top: 4px; color: #fff; font-size: 16px; letter-spacing: .12em; }
.mini-card { min-height: 320px; padding: 23px; color: var(--ink); background: #fff; border: 1px solid rgba(255, 255, 255, .45); border-radius: 24px; box-shadow: 0 24px 60px rgba(0, 0, 0, .22); transform: rotate(2.5deg); transition: transform 300ms var(--ease-spring); }
.mini-card:hover { transform: rotate(0) translateY(-5px); }
.mini-card-head { display: flex; align-items: center; }
.mini-card-head .brand-mark { width: 40px; height: 40px; flex-basis: 40px; }
.mini-card-head > span:last-child { display: grid; margin-left: 12px; line-height: 1.2; }
.mini-card-head strong { font-size: 17px; }
.mini-card-head small { margin-top: 4px; color: var(--muted); font-size: 9px; }
.mini-card-body { display: flex; align-items: center; justify-content: center; flex-direction: column; min-height: 202px; margin-top: 18px; background: linear-gradient(145deg, #fff7f2, #f5f7f7); border-radius: 17px; }
.mini-radar { position: relative; display: flex; align-items: center; justify-content: center; width: 92px; height: 92px; color: #fff; background: var(--brand); border-radius: 50%; }
.mini-radar i { position: absolute; inset: -10px; border: 1px solid rgba(242, 100, 48, .16); border-radius: 50%; animation: radar-ping 3s ease-out infinite; }
.mini-radar i:nth-child(2) { inset: -22px; animation-delay: -1s; }
.mini-radar i:nth-child(3) { inset: -34px; animation-delay: -2s; }
.mini-radar svg { position: relative; z-index: 2; width: 38px; height: 38px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.mini-card-body p { max-width: 220px; margin: 38px 0 0; color: var(--ink-soft); font-size: 11px; line-height: 1.6; text-align: center; }
.mini-card-foot { display: flex; align-items: center; justify-content: space-between; margin-top: 18px; color: var(--muted); font-size: 10px; }
.mini-card-foot > span { display: flex; align-items: center; }
.mini-card-foot i { width: 6px; height: 6px; margin-right: 7px; background: var(--trust); border-radius: 50%; }
.mini-card-foot svg { width: 16px; height: 16px; fill: none; stroke: var(--ink); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.site-footer { color: rgba(255, 255, 255, .54); background: #0d1422; }
.footer-main { display: grid; grid-template-columns: .75fr 1.25fr; gap: 80px; padding-top: 70px; padding-bottom: 56px; }
.brand-footer { width: fit-content; }
.footer-brand p { margin: 22px 0 0; font-size: 13px; line-height: 1.8; }
.footer-links { display: grid; grid-template-columns: .75fr .75fr 1.5fr; gap: 48px; }
.footer-links > div { display: flex; flex-direction: column; align-items: flex-start; }
.footer-links strong { margin-bottom: 15px; color: #fff; font-size: 13px; }
.footer-links a, .footer-links span { margin-bottom: 8px; color: rgba(255, 255, 255, .47); font-size: 12px; line-height: 1.7; transition: color 180ms ease; }
.footer-links a { min-height: 28px; }
.footer-links a:hover { color: #fff; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; min-height: 68px; border-top: 1px solid rgba(255, 255, 255, .08); font-family: "SFMono-Regular", Consolas, monospace; font-size: 10px; letter-spacing: .05em; }
.footer-legal { display: flex; align-items: center; flex-wrap: wrap; gap: 0 20px; }
.filing-link { display: inline-flex; align-items: center; min-height: 44px; color: rgba(255, 255, 255, .58); transition: color 180ms ease; }
.filing-link:hover { color: #fff; }
.footer-domain { flex: 0 0 auto; }

.has-js .reveal { opacity: 1; transform: translateY(18px); }
.has-js .reveal.is-visible { opacity: 1; transform: translateY(0); transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out); }

@keyframes grid-scan { 0%, 12% { transform: translateX(-70%); opacity: 0; } 38%, 58% { opacity: 1; } 88%, 100% { transform: translateX(70%); opacity: 0; } }
@keyframes panel-sheen { 0%, 15% { transform: translateX(-100%); } 50%, 100% { transform: translateX(120%); } }
@keyframes live-pulse { 0% { box-shadow: 0 0 0 0 rgba(100, 200, 180, .35), 0 0 18px rgba(100, 200, 180, .55); } 80%, 100% { box-shadow: 0 0 0 9px rgba(100, 200, 180, 0), 0 0 18px rgba(100, 200, 180, .4); } }
@keyframes orbit-spin { to { transform: rotate(360deg); } }
@keyframes route-flow { to { stroke-dashoffset: -38; } }
@keyframes endpoint-pulse { 0% { opacity: 1; transform: scale(.7); } 75%, 100% { opacity: .05; transform: scale(3.2); } }
@keyframes core-ring { 0% { opacity: .7; transform: translateX(-50%) scale(.72); } 85%, 100% { opacity: 0; transform: translateX(-50%) scale(1.28); } }
@keyframes card-scan { 0%, 15% { left: -45%; } 60%, 100% { left: 125%; } }
@keyframes radar-ping { 0% { opacity: .8; transform: scale(.78); } 80%, 100% { opacity: 0; transform: scale(1.22); } }

@media (max-width: 1100px) {
  .desktop-nav { gap: 22px; }
  .hero-layout { grid-template-columns: minmax(0, .9fr) minmax(450px, 1.1fr); gap: 36px; }
  .worker-signal { min-width: 126px; }
  .worker-layout { gap: 58px; }
  .cta-shell { padding: 64px 54px; }
}

@media (max-width: 920px) {
  :root { --header-height: 72px; }
  .container { width: min(calc(100% - 40px), var(--container)); }
  .desktop-nav, .header-cta { display: none; }
  .menu-button { display: inline-flex; align-items: center; justify-content: center; width: 48px; height: 48px; margin-left: auto; padding: 0; color: #fff; background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .12); border-radius: 13px; cursor: pointer; }
  .menu-button svg { width: 23px; height: 23px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
  .menu-close { display: none; }
  .menu-button[aria-expanded="true"] .menu-open { display: none; }
  .menu-button[aria-expanded="true"] .menu-close { display: block; }
  .mobile-menu { position: fixed; top: var(--header-height); right: 0; left: 0; display: grid; padding: 12px 20px 24px; background: rgba(14, 21, 36, .98); border-top: 1px solid rgba(255, 255, 255, .08); box-shadow: 0 24px 50px rgba(0, 0, 0, .22); }
  .mobile-menu[hidden] { display: none; }
  .mobile-menu a { display: flex; align-items: center; min-height: 52px; padding: 0 12px; color: rgba(255, 255, 255, .78); border-bottom: 1px solid rgba(255, 255, 255, .07); font-weight: 600; }
  .mobile-menu .mobile-menu-cta { justify-content: center; margin-top: 14px; color: #fff; background: var(--brand); border: 0; border-radius: 13px; }
  .hero { min-height: auto; }
  .hero-layout { grid-template-columns: 1fr; gap: 56px; min-height: auto; padding-top: calc(var(--header-height) + 78px); padding-bottom: 80px; }
  .hero-copy { max-width: 680px; }
  .hero h1 { max-width: 700px; }
  .network-shell { width: min(100%, 680px); min-height: 590px; justify-self: center; }
  .network-stage { min-height: 530px; }
  .service-strip { display: none; }
  .section { padding: 92px 0; }
  .section-head { grid-template-columns: 1fr; gap: 20px; }
  .section-head > p { max-width: 600px; }
  .service-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .workflow-container { grid-template-columns: 1fr; gap: 58px; }
  .workflow-intro > p:not(.section-kicker) { max-width: 620px; }
  .protection-grid { grid-template-columns: 1fr 1fr; }
  .protection-main { grid-column: span 2; grid-row: auto; min-height: 480px; }
  .worker-layout { grid-template-columns: 1fr; gap: 58px; }
  .worker-copy > p:not(.section-kicker) { max-width: 620px; }
  .worker-console { width: min(100%, 680px); }
  .cta-shell { grid-template-columns: 1fr; padding: 64px; }
  .mini-card { width: min(100%, 420px); transform: none; }
  .footer-main { grid-template-columns: 1fr; gap: 48px; }
}

@media (max-width: 600px) {
  .container { width: min(calc(100% - 32px), var(--container)); }
  .brand-mark { width: 38px; height: 38px; flex-basis: 38px; border-radius: 13px 13px 13px 5px; }
  .brand-mark span { top: 8px; left: 10px; width: 18px; height: 19px; border-right-width: 6px; border-bottom-width: 6px; }
  .brand-copy { margin-left: 11px; }
  .brand-copy strong { font-size: 19px; }
  .hero-grid { background-size: 50px 50px; }
  .hero-layout { gap: 48px; padding-top: calc(var(--header-height) + 52px); padding-bottom: 54px; }
  .eyebrow { margin-bottom: 16px; font-size: 10px; letter-spacing: .12em; }
  .hero h1 { font-size: clamp(42px, 13vw, 58px); line-height: 1.13; }
  .hero-lead { margin-top: 22px; font-size: 16px; line-height: 1.75; }
  .hero-actions { align-items: stretch; flex-direction: column; margin-top: 30px; }
  .button { width: 100%; min-height: 54px; }
  .hero-trust { display: grid; grid-template-columns: 1fr 1fr; margin-top: 28px; gap: 5px 12px; }
  .hero-trust li { font-size: 12px; }
  .network-shell { min-height: 500px; border-radius: 24px; }
  .network-toolbar { padding: 0 16px; }
  .network-stage { min-height: 441px; }
  .network-map { top: -8px; width: 560px; height: 440px; }
  .network-core { top: 120px; }
  .signal-a { top: 35px; left: 10px; }
  .signal-b { top: 43px; right: 9px; }
  .signal-c { top: 282px; right: 10px; }
  .signal-d { top: 290px; left: 10px; }
  .worker-signal { min-width: 114px; padding: 7px; }
  .signal-icon { width: 29px; height: 29px; margin-right: 6px; }
  .worker-signal strong { font-size: 9px; }
  .worker-signal small { font-size: 8px; }
  .event-console { right: 10px; bottom: 10px; left: 10px; padding: 13px 10px 15px; }
  .event-console li { font-size: 8px; }
  .section { padding: 76px 0; }
  .section-kicker { margin-bottom: 14px; font-size: 10px; }
  .section-head { margin-bottom: 36px; }
  .section-head h2, .workflow h2, .worker-copy h2, .cta-copy h2 { font-size: 36px; }
  .section-head > p, .workflow-intro > p:not(.section-kicker), .worker-copy > p:not(.section-kicker), .cta-copy > p:not(.section-kicker) { font-size: 15px; }
  .service-grid { gap: 12px; }
  .service-card { min-height: 242px; padding: 19px; border-radius: 18px; }
  .service-icon { width: 45px; height: 45px; border-radius: 14px; }
  .service-card h3 { font-size: 18px; }
  .service-card p { font-size: 12px; }
  .workflow-container { gap: 42px; }
  .role-tabs { display: grid; grid-template-columns: 1fr 1fr; width: 100%; }
  .role-tabs button { min-width: 0; min-height: 46px; }
  .flow-list li { grid-template-columns: 32px 48px 1fr; gap: 11px; min-height: 108px; }
  .flow-icon { width: 46px; height: 46px; border-radius: 14px; }
  .flow-list h3 { font-size: 16px; }
  .flow-list p { font-size: 12px; }
  .protection-grid { grid-template-columns: 1fr; }
  .protection-main { grid-column: auto; min-height: 470px; }
  .protection-card { min-height: 210px; padding: 23px; }
  .worker-benefits small { font-size: 11px; }
  .worker-console { min-height: 490px; padding: 19px; border-radius: 24px; }
  .console-map { height: 275px; }
  .job-card { right: 10px; bottom: 10px; left: 10px; grid-template-columns: 42px minmax(0, 1fr) 34px; gap: 8px; padding: 11px; }
  .job-icon { width: 42px; height: 42px; }
  .job-copy > div span, .job-copy small { display: none; }
  .cta-section { padding-bottom: 58px; }
  .cta-shell { width: 100%; padding: 58px 24px; gap: 44px; border-radius: 0; }
  .mini-card { padding: 19px; }
  .footer-main { padding-top: 56px; }
  .footer-links { grid-template-columns: 1fr 1fr; gap: 34px 26px; }
  .footer-links > div:last-child { grid-column: span 2; }
  .footer-bottom { align-items: flex-start; flex-direction: column; justify-content: center; min-height: 112px; padding: 12px 0; gap: 0; }
  .footer-legal { align-items: flex-start; flex-direction: column; gap: 0; }
}

@media (max-width: 380px) {
  .container { width: min(calc(100% - 24px), var(--container)); }
  .hero h1 { font-size: 40px; }
  .hero-trust { grid-template-columns: 1fr; }
  .network-shell { min-height: 476px; }
  .network-stage { min-height: 417px; }
  .worker-signal > span:nth-child(2) { display: none; }
  .worker-signal { min-width: auto; }
  .signal-icon { margin: 0; }
  .event-console li { font-size: 0; }
  .event-console li::after { font-size: 8px; }
  .event-console li:nth-child(1)::after { content: "发布"; }
  .event-console li:nth-child(2)::after { content: "响应"; }
  .event-console li:nth-child(3)::after { content: "报价"; }
  .event-console li:nth-child(4)::after { content: "服务"; }
  .service-grid { grid-template-columns: 1fr; }
  .service-card { min-height: 220px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: .01ms !important; }
  .has-js .reveal { opacity: 1; transform: none; }
}

@media (forced-colors: active) {
  .brand-mark, .core-icon, .shield-core, .map-center, .job-arrow { border: 2px solid ButtonText; }
}