:root {
  color-scheme: light;
  --ink: #071522;
  --muted: #587086;
  --line: rgba(31, 113, 168, .18);
  --glass: rgba(255, 255, 255, .72);
  --glass-strong: rgba(255, 255, 255, .9);
  --blue: #0b7bdc;
  --cyan: #2ed8ff;
  --deep: #04233f;
  --shadow: 0 24px 70px rgba(18, 77, 126, .17);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 4%, rgba(46, 216, 255, .25), transparent 28rem),
    radial-gradient(circle at 90% 18%, rgba(15, 107, 201, .17), transparent 30rem),
    linear-gradient(180deg, #f5fbff 0%, #eef7ff 42%, #ffffff 100%);
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
.flight-top {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  width: min(1180px, calc(100% - 36px));
  margin: 14px auto 0;
  padding: 11px 14px;
  border: 1px solid rgba(255,255,255,.75);
  border-radius: 24px;
  background: rgba(255,255,255,.66);
  backdrop-filter: blur(18px);
  box-shadow: 0 14px 40px rgba(30, 98, 146, .13);
}
.flight-brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 13px 19px 13px 20px;
  background: conic-gradient(from 210deg, #ffffff, #6ce6ff, #137ce5, #ffffff);
  box-shadow: inset 0 0 12px rgba(255,255,255,.9), 0 8px 24px rgba(11,123,220,.25);
}
.flight-brand strong { display: block; font-size: 15px; white-space: nowrap; }
.flight-brand small { display: block; color: var(--muted); font-size: 12px; margin-top: 2px; }
.flight-nav { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.flight-nav a, .flight-menu summary {
  padding: 9px 12px;
  border-radius: 999px;
  color: #15324a;
  font-size: 14px;
  background: rgba(255,255,255,.45);
  border: 1px solid transparent;
}
.flight-nav a:hover { border-color: rgba(22, 143, 221, .25); background: rgba(255,255,255,.85); }
.flight-menu { display: none; position: relative; }
.flight-menu summary { list-style: none; cursor: pointer; }
.flight-menu summary::-webkit-details-marker { display: none; }
.flight-menu nav {
  position: absolute;
  right: 0;
  top: 45px;
  min-width: 210px;
  display: grid;
  gap: 6px;
  padding: 12px;
  border-radius: 18px;
  background: rgba(255,255,255,.94);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.flight-menu nav a { padding: 10px 12px; border-radius: 12px; background: rgba(227,244,255,.75); }
main { position: relative; }
.flight-hero {
  width: min(1180px, calc(100% - 36px));
  min-height: 620px;
  margin: 34px auto 42px;
  display: grid;
  grid-template-columns: minmax(0, .86fr) minmax(420px, 1.14fr);
  gap: 28px;
  align-items: center;
}
.hero-copy {
  position: relative;
  z-index: 2;
  padding: 34px;
  border: 1px solid rgba(255,255,255,.72);
  border-radius: 34px;
  background: linear-gradient(145deg, rgba(255,255,255,.86), rgba(255,255,255,.54));
  backdrop-filter: blur(24px);
  box-shadow: var(--shadow);
}
.hero-copy::before, .inner-hero::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  pointer-events: none;
  background: linear-gradient(120deg, transparent, rgba(46,216,255,.4), transparent);
  opacity: .7;
  animation: speedline 5.4s linear infinite;
}
.eyebrow {
  margin: 0 0 12px;
  color: #0876c8;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
  font-size: 12px;
}
h1 {
  margin: 0;
  font-size: clamp(36px, 5vw, 74px);
  line-height: 1.04;
  letter-spacing: 0;
}
.hero-lead, .section-lead p, .inner-hero p, .article-lead {
  color: var(--muted);
  line-height: 1.8;
  font-size: 16px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.hero-actions a, .article-links a, .task-strip a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  padding: 12px 18px;
  background: linear-gradient(135deg, #062845, #0a7add);
  color: #fff;
  box-shadow: 0 14px 32px rgba(9, 113, 205, .25);
}
.hero-actions a:nth-child(2), .hero-actions a:nth-child(3), .article-links a:nth-child(even) {
  color: var(--deep);
  background: rgba(255,255,255,.82);
  border: 1px solid rgba(10,122,221,.18);
}
.signal-stack { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-top: 28px; }
.signal-stack span {
  padding: 12px;
  border-radius: 18px;
  background: rgba(236,248,255,.74);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}
.signal-stack b { display: block; color: var(--deep); font-size: 20px; margin-bottom: 3px; }
.hero-visual {
  margin: 0;
  position: relative;
  border-radius: 36px;
  overflow: hidden;
  box-shadow: 0 34px 90px rgba(9, 61, 103, .25);
  transform: perspective(1200px) rotateY(-4deg);
}
.hero-visual img, .device-lattice img {
  display: block;
  width: 100%;
  height: auto;
}
.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(255,255,255,.45), transparent 35%, rgba(46,216,255,.2));
  mix-blend-mode: screen;
}
.task-strip, .dash-band, .two-column, .article-radar, .faq-panel, .inner-hero, .client-deck, .device-lattice, .config-board, .resource-bank, .device-lab, .route-console, .article-page {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto 34px;
}
.task-strip { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.task-strip a {
  justify-content: flex-start;
  flex-direction: column;
  align-items: flex-start;
  border-radius: 24px;
  color: var(--ink);
  background: rgba(255,255,255,.75);
  border: 1px solid rgba(255,255,255,.8);
  box-shadow: 0 18px 50px rgba(20, 90, 140, .12);
}
.task-strip span { color: var(--muted); line-height: 1.55; }
.dash-band, .client-deck, .config-board, .resource-bank, .device-lab {
  padding: 28px;
  border-radius: 34px;
  background: rgba(255,255,255,.64);
  border: 1px solid rgba(255,255,255,.82);
  box-shadow: var(--shadow);
}
.section-lead { max-width: 760px; margin-bottom: 20px; }
.section-lead h2, .inner-hero h2 {
  margin: 0;
  font-size: clamp(26px, 3vw, 42px);
  line-height: 1.16;
}
.dashboard-cards, .platform-lanes, .help-groups {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.dashboard-cards article, .platform-lanes article, .help-groups article, .article-grid article, .faq-grid details, .signal-row {
  padding: 18px;
  border-radius: 22px;
  background: linear-gradient(145deg, rgba(255,255,255,.9), rgba(236,248,255,.62));
  border: 1px solid rgba(18, 130, 206, .15);
  box-shadow: 0 10px 28px rgba(20, 91, 138, .08);
}
.dashboard-cards h3, .platform-lanes h3, .help-groups h3, .article-grid h3 { margin: 0 0 10px; font-size: 17px; }
.dashboard-cards p, .platform-lanes p, .help-groups p, .article-grid p, .signal-row p, .faq-grid p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}
.two-column { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
.two-column > div {
  padding: 24px;
  border-radius: 30px;
  background: rgba(255,255,255,.62);
  border: 1px solid rgba(255,255,255,.82);
  box-shadow: var(--shadow);
}
.two-column .platform-lanes { grid-template-columns: 1fr; }
.route-console { display: grid; gap: 12px; }
.signal-row {
  display: grid;
  grid-template-columns: 140px minmax(170px, .7fr) 1fr;
  gap: 14px;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.signal-row::before {
  content: "";
  position: absolute;
  left: -30%;
  top: 0;
  width: 30%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(46,216,255,.28), transparent);
  animation: scan 4s linear infinite;
  animation-delay: calc(var(--delay, 0) * .23s);
}
.signal-row span { font-weight: 800; color: #075d9c; }
.signal-row strong { color: var(--deep); }
.article-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.article-grid span, .article-page .eyebrow, .article-grid time {
  color: #0b7bdc;
  font-size: 12px;
  font-weight: 800;
}
.article-grid time { display: block; margin: 6px 0 10px; color: #7b92a8; }
.faq-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.faq-grid summary { cursor: pointer; font-weight: 800; line-height: 1.5; }
.faq-grid p { margin-top: 10px; }
.inner-hero {
  position: relative;
  margin-top: 34px;
  padding: 34px;
  border-radius: 34px;
  background: rgba(255,255,255,.72);
  border: 1px solid rgba(255,255,255,.86);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.device-lattice {
  display: grid;
  grid-template-columns: minmax(0, .75fr) minmax(360px, 1.25fr);
  gap: 22px;
  align-items: center;
}
.device-lattice figure {
  margin: 0;
  border-radius: 30px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.article-page {
  margin-top: 34px;
  padding: 42px;
  border-radius: 34px;
  background: rgba(255,255,255,.78);
  border: 1px solid rgba(255,255,255,.86);
  box-shadow: var(--shadow);
}
.article-page h1 { font-size: clamp(30px, 4vw, 56px); }
.article-page h2 { margin: 28px 0 10px; font-size: 24px; }
.article-page p { color: #445f76; line-height: 1.9; font-size: 16px; }
.article-links { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.flight-footer {
  width: min(1180px, calc(100% - 36px));
  margin: 54px auto 22px;
  padding: 26px;
  display: grid;
  grid-template-columns: 1.4fr repeat(3, minmax(0, .8fr));
  gap: 20px;
  border-radius: 30px;
  color: #d9ecff;
  background: linear-gradient(135deg, #061827, #0b3861 62%, #085d91);
  box-shadow: 0 30px 80px rgba(5, 30, 51, .24);
}
.flight-footer h2, .flight-footer h3 { margin: 0 0 10px; color: #fff; }
.flight-footer p, .flight-footer a { color: rgba(229,245,255,.82); line-height: 1.7; }
.flight-footer a { display: block; margin: 7px 0; }
@keyframes scan { to { left: 105%; } }
@keyframes speedline { 0% { transform: translateX(-24%); } 100% { transform: translateX(24%); } }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; scroll-behavior: auto !important; }
}
@media (max-width: 980px) {
  .flight-nav { display: none; }
  .flight-menu { display: block; }
  .flight-hero, .two-column, .device-lattice { grid-template-columns: 1fr; }
  .flight-hero { min-height: 0; }
  .hero-visual { transform: none; }
  .dashboard-cards, .platform-lanes, .help-groups, .article-grid, .task-strip, .faq-grid, .flight-footer { grid-template-columns: 1fr 1fr; }
  .signal-row { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .flight-top, .flight-hero, .task-strip, .dash-band, .two-column, .article-radar, .faq-panel, .inner-hero, .client-deck, .device-lattice, .config-board, .resource-bank, .device-lab, .route-console, .article-page, .flight-footer {
    width: min(100% - 24px, 1180px);
  }
  .flight-top { border-radius: 20px; padding: 9px 10px; }
  .flight-brand strong { max-width: 190px; overflow: hidden; text-overflow: ellipsis; }
  .flight-brand small { display: none; }
  .flight-hero { margin-top: 24px; gap: 16px; }
  .hero-copy, .inner-hero, .article-page, .dash-band, .client-deck, .config-board, .resource-bank, .device-lab { padding: 22px; border-radius: 24px; }
  .hero-copy::before, .inner-hero::before { opacity: .36; }
  h1 { font-size: clamp(30px, 9vw, 38px); line-height: 1.1; }
  .hero-lead, .section-lead p, .inner-hero p, .article-lead { font-size: 15px; line-height: 1.72; }
  .hero-actions { margin-top: 20px; gap: 10px; }
  .hero-actions a, .article-links a { width: 100%; }
  .signal-stack { margin-top: 20px; }
  .signal-stack, .dashboard-cards, .platform-lanes, .help-groups, .article-grid, .task-strip, .faq-grid, .flight-footer { grid-template-columns: 1fr; }
}