:root {
  --ink: #071827;
  --muted: #64788d;
  --blue: #087ff5;
  --cyan: #13c7d4;
  --line: rgba(9, 42, 70, 0.1);
  --shell: min(1180px, calc(100% - 48px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  overflow-x: hidden;
  margin: 0;
  background: #f6f9fc;
  color: var(--ink);
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.section-shell { width: var(--shell); margin-inline: auto; }

.site-header {
  position: fixed;
  z-index: 20;
  top: 18px;
  left: 50%;
  display: flex;
  width: var(--shell);
  height: 72px;
  align-items: center;
  padding: 8px 10px 8px 16px;
  border: 1px solid rgba(255, 255, 255, 0.82);
  border-radius: 22px;
  background: rgba(250, 253, 255, 0.78);
  box-shadow: 0 20px 60px rgba(4, 34, 62, 0.1);
  backdrop-filter: blur(22px) saturate(1.35);
  transform: translateX(-50%);
}

.brand, .footer-brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  position: relative;
  display: grid;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  place-items: center;
  overflow: hidden;
  border-radius: 14px;
  background: linear-gradient(145deg, var(--blue), var(--cyan));
  box-shadow: 0 10px 24px rgba(8, 127, 245, 0.22);
}
.brand-mark::before, .brand-mark::after, .brand-mark span { position: absolute; content: ""; }
.brand-mark::before { width: 14px; height: 14px; border: 3px solid #fff; border-radius: 50%; }
.brand-mark::after { width: 3px; height: 28px; border-radius: 99px; background: #fff; }
.brand-mark span {
  width: 30px;
  height: 30px;
  border: 2px solid rgba(255, 255, 255, 0.62);
  border-top-color: transparent;
  border-bottom-color: transparent;
  border-radius: 50%;
}
.brand > span:last-child { display: grid; gap: 2px; }
.brand b { font-size: 15px; letter-spacing: -0.02em; }
.brand small { color: #8191a2; font-size: 8px; font-weight: 800; letter-spacing: 0.16em; }
.site-header nav { display: flex; gap: 34px; margin-left: auto; }
.site-header nav a { color: #45596e; font-size: 13px; font-weight: 750; transition: color 180ms ease; }
.site-header nav a:hover { color: var(--blue); }
.header-action {
  display: flex;
  height: 52px;
  align-items: center;
  gap: 10px;
  margin-left: 42px;
  padding: 0 21px;
  border-radius: 16px;
  background: var(--ink);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
}

.hero {
  display: grid;
  min-height: 920px;
  grid-template-columns: 0.92fr 1.08fr;
  align-items: center;
  gap: 42px;
  padding-top: 134px;
  padding-bottom: 70px;
}
.hero-copy { min-width: 0; }
.hero::before {
  position: absolute;
  z-index: -1;
  width: 760px;
  height: 760px;
  top: -220px;
  right: -190px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(52, 216, 227, 0.16), rgba(54, 149, 255, 0.08) 45%, transparent 70%);
  content: "";
}
.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 24px;
  color: #526b82;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.13em;
}
.eyebrow > span { width: 29px; height: 2px; border-radius: 99px; background: linear-gradient(90deg, var(--blue), var(--cyan)); }
.hero h1, .section-heading h2, .about-copy h2 { margin: 0; font-weight: 900; letter-spacing: -0.065em; line-height: 1.08; }
.hero h1 { font-size: clamp(54px, 5.4vw, 78px); }
.hero h1 em {
  background: linear-gradient(100deg, #087ff5, #13c7d4 78%);
  background-clip: text;
  color: transparent;
  font-style: normal;
}
.hero-lead { max-width: 590px; margin: 30px 0 0; color: var(--muted); font-size: 16px; line-height: 1.95; }
.hero-actions { display: flex; align-items: center; gap: 28px; margin-top: 36px; }
.primary-button {
  display: inline-flex;
  min-height: 58px;
  align-items: center;
  justify-content: center;
  gap: 28px;
  padding: 0 26px;
  border-radius: 17px;
  background: linear-gradient(100deg, var(--blue), #04b9d4);
  box-shadow: 0 18px 38px rgba(5, 135, 230, 0.22);
  color: #fff;
  font-size: 13px;
  font-weight: 850;
  transition: box-shadow 200ms ease, transform 200ms ease;
}
.primary-button:hover { box-shadow: 0 24px 50px rgba(5, 135, 230, 0.3); transform: translateY(-2px); }
.text-button { border-bottom: 1px solid #a6b6c6; color: #435970; font-size: 13px; font-weight: 800; }
.hero-points { display: flex; flex-wrap: wrap; gap: 17px; margin-top: 38px; }
.hero-points span { display: flex; align-items: center; gap: 7px; color: #6a7e91; font-size: 11px; font-weight: 700; }
.hero-points i { width: 6px; height: 6px; border-radius: 50%; background: #36d0c4; box-shadow: 0 0 0 5px rgba(54, 208, 196, 0.1); }

.hero-visual {
  position: relative;
  min-height: 650px;
  overflow: hidden;
  border: 1px solid rgba(4, 60, 96, 0.09);
  border-radius: 52px;
  background:
    radial-gradient(circle at 72% 28%, rgba(14, 208, 221, 0.18), transparent 32%),
    radial-gradient(circle at 24% 86%, rgba(19, 111, 255, 0.16), transparent 38%),
    rgba(255, 255, 255, 0.58);
  box-shadow: 0 44px 110px rgba(6, 42, 72, 0.13);
  isolation: isolate;
}
.visual-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(9, 73, 112, 0.045) 1px, transparent 1px), linear-gradient(90deg, rgba(9, 73, 112, 0.045) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle, #000, transparent 72%);
}
.visual-orb { position: absolute; border-radius: 50%; filter: blur(4px); }
.orb-blue { width: 300px; height: 300px; bottom: -65px; left: 105px; background: radial-gradient(circle, rgba(41, 117, 255, 0.27), rgba(41, 117, 255, 0.02) 64%, transparent 72%); }
.orb-cyan { width: 270px; height: 270px; top: 30px; right: 4px; background: radial-gradient(circle, rgba(38, 222, 217, 0.28), rgba(38, 222, 217, 0.03) 64%, transparent 72%); }
.visual-center {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  width: 230px;
  height: 230px;
  padding: 25px;
  border: 1px solid rgba(255, 255, 255, 0.75);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.48);
  box-shadow: 0 32px 80px rgba(4, 45, 77, 0.18), inset 0 0 38px rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(18px);
  transform: translate(-50%, -50%);
  transition: box-shadow 220ms ease, transform 220ms ease;
}
.visual-center img { width: 100%; height: 100%; border-radius: 50%; box-shadow: 0 18px 46px rgba(8, 127, 245, 0.22); }
.visual-center:hover {
  box-shadow: 0 38px 92px rgba(5, 103, 190, 0.24), inset 0 0 38px rgba(255, 255, 255, 0.82);
  transform: translate(-50%, -52%);
}
.center-pulse {
  position: absolute;
  z-index: -1;
  inset: -55px;
  border: 1px solid rgba(15, 156, 234, 0.2);
  border-radius: 50%;
  box-shadow: 0 0 0 48px rgba(9, 149, 226, 0.04), 0 0 0 96px rgba(9, 149, 226, 0.025);
}
.floating-product {
  position: absolute;
  z-index: 3;
  display: grid;
  width: 236px;
  grid-template-columns: 52px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 13px;
  border: 1px solid rgba(255, 255, 255, 0.84);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.77);
  box-shadow: 0 24px 58px rgba(5, 37, 66, 0.15);
  backdrop-filter: blur(20px);
  transition: transform 220ms ease;
}
.floating-product img { width: 52px; height: 52px; border-radius: 15px; }
.floating-product > span { display: grid; gap: 4px; }
.floating-product b { font-size: 13px; }
.floating-product small { color: #74869a; font-size: 9px; }
.floating-product i { color: #7690a5; font-size: 15px; font-style: normal; }
.floating-company { top: 78px; left: 36px; transform: rotate(-4deg); }
.floating-company:hover { transform: translateY(-5px) rotate(-2deg); }
.floating-wifi { right: 30px; bottom: 92px; transform: rotate(4deg); }
.floating-wifi:hover { transform: translateY(-5px) rotate(2deg); }
.visual-caption {
  position: absolute;
  bottom: 34px;
  left: 38px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 15px;
  border-radius: 17px;
  background: rgba(255, 255, 255, 0.7);
  box-shadow: 0 16px 40px rgba(5, 40, 70, 0.1);
}
.visual-caption b { color: var(--blue); font-size: 28px; }
.visual-caption span { color: #587086; font-size: 9px; font-weight: 800; line-height: 1.4; }

.products-section { padding: 150px 0; background: #fff; }
.section-heading { display: grid; grid-template-columns: 1fr 0.62fr; align-items: end; gap: 70px; margin-bottom: 58px; }
.section-heading h2, .about-copy h2 { font-size: clamp(42px, 5vw, 66px); }
.section-heading > p { margin: 0 0 5px; color: var(--muted); font-size: 14px; line-height: 1.9; }
.product-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.product-card {
  position: relative;
  display: flex;
  min-height: 590px;
  overflow: hidden;
  flex-direction: column;
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: 34px;
  background: #f4f8fb;
  transition: box-shadow 260ms ease, transform 260ms ease;
}
.product-card:hover { box-shadow: 0 38px 90px rgba(5, 34, 61, 0.15); transform: translateY(-7px); }
.sky-card { background: radial-gradient(circle at 86% 20%, rgba(27, 220, 216, 0.16), transparent 34%), linear-gradient(145deg, #eef8ff, #f7ffff 60%, #fff); }
.wifi-card { background: radial-gradient(circle at 84% 18%, rgba(83, 176, 255, 0.2), transparent 34%), linear-gradient(145deg, #f4f9ff, #eef7ff 62%, #fff); }
.product-card::after {
  position: absolute;
  width: 320px;
  height: 320px;
  right: -125px;
  bottom: 80px;
  border: 1px solid rgba(28, 135, 225, 0.11);
  border-radius: 50%;
  box-shadow: 0 0 0 55px rgba(28, 135, 225, 0.035), 0 0 0 110px rgba(28, 135, 225, 0.02);
  content: "";
}
.product-topline { position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; }
.product-topline span { display: grid; width: 38px; height: 28px; place-items: center; border-radius: 999px; background: rgba(7, 127, 245, 0.08); color: var(--blue); font-size: 10px; font-weight: 900; }
.product-topline b { color: #6c8093; font-size: 9px; letter-spacing: 0.12em; }
.product-icon {
  position: relative;
  z-index: 1;
  width: 144px;
  height: 144px;
  margin: 66px auto 48px;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.86);
  border-radius: 38px;
  background: rgba(255, 255, 255, 0.65);
  box-shadow: 0 28px 66px rgba(4, 48, 82, 0.16);
  transform: rotate(-4deg);
}
.wifi-card .product-icon { transform: rotate(4deg); }
.product-icon img { width: 100%; height: 100%; border-radius: 28px; }
.product-copy { position: relative; z-index: 1; }
.product-copy > p { margin: 0 0 7px; color: var(--blue); font-size: 9px; font-weight: 900; letter-spacing: 0.16em; }
.product-copy h3 { margin: 0; font-size: 34px; letter-spacing: -0.045em; }
.product-copy > span { display: block; max-width: 470px; margin-top: 14px; color: #667b90; font-size: 13px; line-height: 1.8; }
.product-link { position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; margin-top: auto; padding-top: 26px; border-top: 1px solid var(--line); color: #2e526f; font-size: 12px; font-weight: 850; }
.product-link i { display: grid; width: 37px; height: 37px; place-items: center; border-radius: 50%; background: var(--ink); color: #fff; font-style: normal; }

.about-section {
  overflow: hidden;
  padding: 150px 0;
  background: radial-gradient(circle at 12% 80%, rgba(11, 118, 255, 0.18), transparent 34%), radial-gradient(circle at 92% 10%, rgba(30, 219, 212, 0.15), transparent 32%), #071827;
  color: #fff;
}
.about-inner { position: relative; display: grid; grid-template-columns: 0.35fr 0.9fr 0.85fr; align-items: center; gap: 62px; }
.eyebrow.light { color: #7f9bb3; }
.about-copy > p:last-child { max-width: 620px; margin: 28px 0 0; color: #8da3b8; font-size: 14px; line-height: 1.95; }
.about-mark {
  position: relative;
  width: 230px;
  height: 230px;
  border: 1px solid rgba(119, 223, 239, 0.18);
  border-radius: 50%;
  box-shadow: 0 0 0 43px rgba(68, 191, 231, 0.035), 0 0 0 86px rgba(68, 191, 231, 0.02);
}
.about-mark::before, .about-mark::after, .about-mark span { position: absolute; top: 50%; left: 50%; content: ""; transform: translate(-50%, -50%); }
.about-mark::before { width: 64px; height: 64px; border: 12px solid #fff; border-radius: 50%; box-shadow: 0 0 38px rgba(68, 232, 237, 0.36); }
.about-mark::after { width: 13px; height: 145px; border-radius: 99px; background: linear-gradient(#fff, #72e5ec); }
.about-mark span { width: 165px; height: 165px; border: 8px solid rgba(114, 229, 236, 0.75); border-top-color: transparent; border-bottom-color: transparent; border-radius: 50%; }
.about-values { display: grid; gap: 12px; }
.about-values article { display: grid; min-height: 106px; grid-template-columns: 40px 1fr; align-items: center; gap: 16px; padding: 20px; border: 1px solid rgba(255, 255, 255, 0.1); border-radius: 20px; background: rgba(255, 255, 255, 0.055); }
.about-values article > span { color: #5ce5ea; font-size: 10px; font-weight: 900; }
.about-values b { font-size: 14px; }
.about-values p { margin: 7px 0 0; color: #7f98ae; font-size: 11px; line-height: 1.6; }

.site-footer { padding: 48px 0 30px; background: #04111d; color: #fff; }
.footer-main, .footer-bottom { display: flex; align-items: center; justify-content: space-between; }
.brand-mark.small { width: 34px; height: 34px; border-radius: 11px; }
.footer-brand b { font-size: 14px; }
.footer-links { display: flex; gap: 28px; }
.footer-links a { color: #8da1b4; font-size: 11px; }
.footer-bottom { margin-top: 36px; padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, 0.08); color: #536a80; font-size: 10px; }

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; padding-top: 170px; }
  .hero-copy { max-width: 760px; }
  .hero-visual { min-height: 620px; }
  .section-heading { grid-template-columns: 1fr; gap: 24px; }
  .section-heading > p { max-width: 620px; }
  .about-inner { grid-template-columns: 0.42fr 1fr; }
  .about-values { grid-column: 1 / -1; grid-template-columns: repeat(3, 1fr); }
  .about-values article { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  :root { --shell: min(1180px, calc(100% - 28px)); }
  .site-header { top: 10px; height: 62px; padding: 7px 9px 7px 11px; border-radius: 18px; }
  .brand-mark { width: 39px; height: 39px; border-radius: 12px; }
  .brand b { font-size: 14px; }
  .site-header nav, .brand small { display: none; }
  .header-action { height: 46px; margin-left: auto; padding: 0 15px; border-radius: 13px; font-size: 11px; }
  .hero { min-height: auto; gap: 54px; padding-top: 130px; padding-bottom: 80px; }
  .hero h1 { overflow-wrap: anywhere; font-size: clamp(40px, 10.4vw, 46px); }
  .hero-lead { max-width: 100%; overflow-wrap: anywhere; font-size: 14px; }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .primary-button { width: 100%; }
  .hero-points { gap: 13px; }
  .hero-visual { min-height: 520px; border-radius: 32px; }
  .visual-center { width: 174px; height: 174px; padding: 18px; }
  .center-pulse { inset: -36px; box-shadow: 0 0 0 30px rgba(9, 149, 226, 0.04), 0 0 0 62px rgba(9, 149, 226, 0.025); }
  .floating-product { width: 205px; grid-template-columns: 44px 1fr auto; }
  .floating-product img { width: 44px; height: 44px; }
  .floating-company { top: 42px; left: 16px; }
  .floating-wifi { right: 12px; bottom: 68px; }
  .visual-caption { bottom: 20px; left: 18px; }
  .products-section, .about-section { padding: 105px 0; }
  .section-heading { margin-bottom: 38px; }
  .section-heading h2, .about-copy h2 { font-size: clamp(39px, 10vw, 52px); }
  .product-grid { grid-template-columns: 1fr; }
  .product-card { min-height: 560px; padding: 25px; border-radius: 26px; }
  .product-icon { margin-top: 58px; }
  .about-inner { grid-template-columns: 1fr; gap: 58px; }
  .about-mark { width: 180px; height: 180px; margin: 28px auto 0; }
  .about-mark span { width: 130px; height: 130px; }
  .about-values { grid-column: auto; grid-template-columns: 1fr; }
  .about-values article { min-height: auto; grid-template-columns: 34px 1fr; }
  .footer-main, .footer-bottom { align-items: flex-start; flex-direction: column; gap: 22px; }
  .footer-links { flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}