:root {
  --bg: #020b1d;
  --bg2: #061b38;
  --panel: rgba(9, 34, 70, 0.68);
  --panel2: rgba(6, 25, 55, 0.82);
  --line: rgba(61, 145, 255, 0.42);
  --line2: rgba(89, 174, 255, 0.22);
  --text: #f4f8ff;
  --muted: #aab9d0;
  --blue: #1678ff;
  --cyan: #24dcff;
  --orange: #ffac32;
  --shadow: 0 0 32px rgba(22, 120, 255, 0.22);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 50% 8%, rgba(18, 111, 255, .32), transparent 34%),
    linear-gradient(180deg, #010715 0%, #061b38 45%, #031027 100%);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  letter-spacing: 0;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(44, 135, 255, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(44, 135, 255, .055) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: linear-gradient(to bottom, transparent, #000 10%, #000 80%, transparent);
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input { font: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 96px;
  padding: 0 clamp(28px, 4vw, 70px);
  background: rgba(1, 8, 24, .76);
  border-bottom: 1px solid rgba(45, 120, 255, .16);
  backdrop-filter: blur(18px);
}
.brand { display: inline-flex; align-items: center; gap: 12px; white-space: nowrap; }
.brand img { width: 48px; height: 48px; object-fit: contain; }
.brand strong { font-size: 28px; font-weight: 900; text-shadow: 0 0 14px rgba(255,255,255,.18); }
.nav { display: flex; align-items: center; gap: clamp(16px, 3vw, 46px); font-size: 17px; font-weight: 700; color: rgba(255,255,255,.86); }
.nav a { position: relative; padding: 36px 0; }
.nav a.active::after, .nav a:hover::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 17px;
  height: 4px;
  border-radius: 6px;
  background: var(--blue);
  box-shadow: 0 0 18px var(--blue);
}
.header-cta {
  min-width: 140px;
  height: 56px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: linear-gradient(180deg, #1684ff, #0862ff);
  font-size: 18px;
  font-weight: 900;
  box-shadow: 0 0 30px rgba(22, 120, 255, .36);
}

.float-tg {
  position: fixed;
  right: 18px;
  top: 56%;
  z-index: 45;
}
.float-tg a {
  width: 88px;
  min-height: 132px;
  display: grid;
  place-items: center;
  gap: 8px;
  padding: 12px 8px;
  border-radius: 20px;
  background: rgba(255,255,255,.97);
  color: #1072ff;
  text-align: center;
  font-weight: 900;
  box-shadow: 0 14px 34px rgba(0,0,0,.28);
}
.float-tg img { width: 42px; height: 42px; }

.hero {
  position: relative;
  min-height: 635px;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(520px, 1fr) minmax(620px, .95fr);
  align-items: center;
  padding: 70px clamp(36px, 5vw, 92px) 44px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 72% 48%, rgba(23, 132, 255, .18), transparent 20%),
    radial-gradient(circle at 60% 82%, rgba(36, 220, 255, .12), transparent 16%),
    linear-gradient(90deg, rgba(2,10,29,.97) 0%, rgba(3,14,33,.92) 42%, rgba(4,18,42,.84) 100%),
    url("./assets/hero-global-network-4k.png") center / cover no-repeat;
  opacity: 1;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 180px;
  background: linear-gradient(180deg, transparent 0%, rgba(4, 17, 38, .52) 100%);
  pointer-events: none;
}
.hero-copy, .hero-visual { position: relative; z-index: 1; }
.hero h1 {
  margin: 0 0 22px;
  font-size: clamp(54px, 7vw, 96px);
  line-height: 1.02;
  letter-spacing: 0;
  text-shadow: 0 6px 22px rgba(0,0,0,.45);
}
.hero-copy > p {
  margin: 0 0 44px;
  color: rgba(255,255,255,.92);
  font-size: clamp(20px, 2vw, 30px);
  line-height: 1.55;
}
.hero-actions { display: flex; gap: 22px; flex-wrap: wrap; }
.btn {
  min-height: 64px;
  min-width: 210px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0 28px;
  border-radius: 8px;
  font-size: 22px;
  font-weight: 900;
}
.btn img { width: 30px; height: 30px; object-fit: contain; }
.btn.primary { background: linear-gradient(180deg, #208bff, #0868ff); box-shadow: 0 0 34px rgba(24, 128, 255, .42); }
.btn.outline { border: 1px solid rgba(54, 145, 255, .78); background: rgba(5, 18, 40, .56); }
.btn.light { background: #f4f8ff; color: #061d40; }
.hero-features {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 30px;
  margin-top: 52px;
  max-width: 780px;
}
.hero-features article { display: grid; grid-template-columns: 40px 1fr; column-gap: 10px; align-items: center; }
.hero-features img { width: 36px; height: 36px; grid-row: span 2; }
.hero-features b { font-size: 18px; }
.hero-features span { color: var(--muted); font-size: 14px; margin-top: 8px; }

.hero-visual {
  min-height: 470px;
  isolation: isolate;
}
.hero-visual::before {
  content: "";
  position: absolute;
  right: 0;
  top: 6px;
  width: min(790px, 100%);
  height: 510px;
  background: url("./assets/hero-defense-clean.png") center right / contain no-repeat;
  filter: drop-shadow(0 0 24px rgba(33, 151, 255, .30));
  mix-blend-mode: normal;
  opacity: 1;
  -webkit-mask-image: radial-gradient(ellipse at 58% 52%, #000 0%, #000 63%, rgba(0,0,0,.95) 74%, transparent 88%);
  mask-image: radial-gradient(ellipse at 58% 52%, #000 0%, #000 63%, rgba(0,0,0,.95) 74%, transparent 88%);
  z-index: 1;
}
.hero-visual::after {
  display: none;
}
.server-rack {
  position: absolute;
  right: 230px;
  top: 10px;
  display: flex;
  align-items: end;
  gap: 0;
  filter: drop-shadow(0 0 30px rgba(41, 146, 255, .38));
  display: none;
}
.server-rack img { width: 190px; margin-left: -66px; transform: scaleY(1.28); }
.shield-core {
  position: absolute;
  right: 290px;
  top: 145px;
  width: 300px;
  filter: drop-shadow(0 0 28px rgba(40, 170, 255, .78));
  display: none;
}
.monitor {
  position: absolute;
  right: 8px;
  top: 34px;
  width: 350px;
  padding: 20px 22px;
  border: 1px solid rgba(40, 136, 255, .78);
  border-radius: 12px;
  background: rgba(3, 13, 32, .70);
  box-shadow: inset 0 0 24px rgba(33, 120, 255, .10), 0 0 22px rgba(32, 124, 255, .16);
  backdrop-filter: blur(10px);
  z-index: 2;
}
.monitor h3 { margin: 0 0 16px; font-size: 20px; }
.line-chart { height: 116px; display: flex; align-items: end; gap: 11px; border-left: 1px solid rgba(77,150,255,.22); border-bottom: 1px solid rgba(77,150,255,.22); padding: 0 0 8px 14px; }
.line-chart i { display: block; width: 14px; background: linear-gradient(180deg, var(--cyan), var(--blue)); border-radius: 8px 8px 0 0; box-shadow: 0 0 12px rgba(36,220,255,.45); }
.line-chart i:nth-child(1){height:42px}.line-chart i:nth-child(2){height:68px}.line-chart i:nth-child(3){height:54px}.line-chart i:nth-child(4){height:82px}.line-chart i:nth-child(5){height:72px}.line-chart i:nth-child(6){height:100px}
.monitor b { display: block; margin-top: 16px; font-size: 34px; }
.monitor p { display: flex; justify-content: space-between; color: var(--muted); margin: 8px 0 0; }
.monitor span { color: #fff; }

.section { width: min(1440px, calc(100% - 72px)); margin: 0 auto; padding: 34px 0; }
.section-title {
  margin: 0 0 12px;
  text-align: center;
  font-size: clamp(30px, 3.1vw, 46px);
  letter-spacing: 5px;
  font-weight: 900;
}
.section-title::before, .section-title::after { content: "///"; color: var(--blue); font-size: .75em; margin: 0 28px; letter-spacing: 4px; }
.section-desc { margin: 0 0 24px; color: var(--muted); text-align: center; }

.config-list { display: grid; gap: 14px; }
.config-card {
  position: relative;
  min-height: 128px;
  display: grid;
  grid-template-columns: 170px minmax(230px, 1fr) repeat(5, minmax(90px, .7fr)) 190px;
  align-items: center;
  gap: 20px;
  padding: 18px 36px 18px 28px;
  border: 1px solid rgba(81, 153, 255, .4);
  border-radius: 10px;
  background: linear-gradient(90deg, rgba(12,43,89,.88), rgba(8,31,68,.62));
  box-shadow: inset 0 0 38px rgba(31, 128, 255, .08);
}
.config-badge {
  position: absolute;
  top: 0;
  left: 0;
  padding: 8px 13px;
  border-radius: 8px 0 8px 0;
  background: linear-gradient(90deg, #ffae32, #f68b15);
  font-weight: 900;
}
.config-card:nth-child(even) .config-badge { background: linear-gradient(90deg, #258bff, #0e5cff); }
.config-art img {
  width: 132px;
  height: 104px;
  object-fit: contain;
  filter: drop-shadow(0 0 20px rgba(45, 146, 255, .45));
}
.config-name h3 { margin: 0 0 12px; font-size: 28px; }
.config-name p { margin: 0; color: var(--muted); }
.spec-col { min-height: 58px; display: grid; align-content: center; border-left: 1px solid rgba(120,170,255,.24); padding-left: 28px; }
.spec-col span { color: var(--muted); margin-bottom: 8px; }
.spec-col b { font-size: 23px; }
.price-col { display: grid; gap: 10px; justify-items: center; }
.price { color: #2487ff; font-size: 44px; font-weight: 900; line-height: 1; }
.price small { font-size: 18px; }
.buy-btn { width: 162px; height: 48px; display: inline-flex; align-items: center; justify-content: center; border-radius: 6px; background: linear-gradient(180deg, #208bff, #0868ff); font-size: 17px; font-weight: 900; }

.adv-grid, .cap-grid, .scene-grid, .case-grid, .promise-grid, .stat-grid {
  display: grid;
  gap: 14px;
}
.adv-grid { grid-template-columns: repeat(6, 1fr); }
.cap-grid { grid-template-columns: repeat(8, 1fr); }
.scene-grid { grid-template-columns: repeat(6, 1fr); }
.case-grid { grid-template-columns: repeat(4, 1fr); }
.promise-grid, .stat-grid { grid-template-columns: repeat(4, 1fr); }
.adv-grid article, .cap-grid article, .scene-grid article, .case-grid article, .promise-grid article, .stat-grid article,
.network-panel, .flow article, .service-flow article, .support-box, .faq details, .cta {
  border: 1px solid rgba(83, 153, 255, .42);
  border-radius: 10px;
  background: linear-gradient(180deg, rgba(11,43,86,.62), rgba(5,22,51,.74));
  box-shadow: inset 0 0 34px rgba(31, 128, 255, .08);
}
.adv-grid article { min-height: 210px; padding: 28px 22px; text-align: center; }
.adv-grid img { width: 78px; height: 78px; margin: 0 auto 20px; }
.adv-grid h3, .cap-grid h3, .scene-grid h3, .case-grid h3, .promise-grid h3 { margin: 0 0 10px; font-size: 23px; }
.adv-grid p, .cap-grid p, .scene-grid p, .case-grid span, .promise-grid p { margin: 0; color: var(--muted); line-height: 1.7; }

.cap-grid article { min-height: 205px; padding: 24px 14px; text-align: center; }
.cap-grid img { width: 70px; margin: 0 auto 12px; }
.cap-grid b { display: block; color: var(--cyan); font-size: 22px; margin-top: 10px; }

.scene-grid article { overflow: hidden; min-height: 280px; }
.scene-img, .case-bg { height: 132px; background-size: cover; background-position: center; border-bottom: 1px solid rgba(83,153,255,.35); opacity: .86; }
.scene-img.game { background-image: linear-gradient(rgba(3,18,44,.04), rgba(3,18,44,.62)), url("./assets/scene-game-new.png"); }
.scene-img.ecommerce { background-image: linear-gradient(rgba(3,18,44,.04), rgba(3,18,44,.62)), url("./assets/scene-ecommerce-new.png"); }
.scene-img.pay { background-image: linear-gradient(rgba(3,18,44,.04), rgba(3,18,44,.62)), url("./assets/scene-pay-new.png"); }
.scene-img.api { background-image: linear-gradient(rgba(3,18,44,.04), rgba(3,18,44,.62)), url("./assets/scene-api-new.png"); }
.scene-img.live { background-image: linear-gradient(rgba(3,18,44,.04), rgba(3,18,44,.62)), url("./assets/scene-live-new.png"); }
.scene-img.global { background-image: linear-gradient(rgba(3,18,44,.04), rgba(3,18,44,.62)), url("./assets/scene-global-new.png"); }
.scene-grid article > img { width: 48px; margin: -24px 0 12px 28px; filter: drop-shadow(0 0 12px rgba(38,139,255,.55)); }
.scene-grid h3, .scene-grid p { padding: 0 24px; }

.network-panel { display: grid; grid-template-columns: 420px 1fr; overflow: hidden; padding: 0; }
.network-list article { display: grid; grid-template-columns: 62px 1fr; gap: 6px 18px; padding: 15px 22px; border-bottom: 1px solid rgba(83,153,255,.26); }
.network-list img { width: 48px; grid-row: span 2; }
.network-list b { font-size: 19px; }
.network-list span { color: var(--muted); }
.map {
  position: relative;
  min-height: 280px;
  background:
    linear-gradient(rgba(2,12,34,.18), rgba(2,12,34,.42)),
    url("./assets/network-global-map.png") center / cover;
  overflow: hidden;
}
.map::before { content: ""; position: absolute; inset: 0; background: linear-gradient(rgba(41,130,255,.07) 1px, transparent 1px), linear-gradient(90deg, rgba(41,130,255,.07) 1px, transparent 1px); background-size: 34px 34px; transform: perspective(500px) rotateX(50deg) scale(1.7); transform-origin: center bottom; }
.hub, .node { position: absolute; z-index: 2; display: inline-flex; align-items: center; justify-content: center; border: 1px solid rgba(91,175,255,.8); background: rgba(7,36,78,.9); box-shadow: 0 0 18px rgba(36,220,255,.34); }
.hub { left: 54%; top: 45%; width: 86px; height: 86px; border-radius: 50%; color: #fff; font-size: 24px; font-weight: 900; }
.node { padding: 8px 20px; border-radius: 24px; }
.n1{left:48%;top:19%}.n2{right:4%;top:24%}.n3{right:13%;top:48%}.n4{right:24%;bottom:16%}.n5{left:22%;bottom:26%}
.arc { position: absolute; z-index: 1; width: 360px; height: 120px; border-top: 3px solid rgba(36,220,255,.75); border-radius: 50%; filter: drop-shadow(0 0 8px rgba(36,220,255,.55)); }
.a1{left:46%;top:24%;transform:rotate(-12deg)}.a2{left:54%;top:30%;transform:rotate(8deg)}.a3{left:43%;top:48%;transform:rotate(25deg)}.a4{left:32%;top:50%;transform:rotate(-28deg)}.a5{left:22%;top:32%;transform:rotate(-38deg)}

.flow, .service-flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 34px; }
.flow article, .service-flow article { position: relative; min-height: 132px; padding: 22px; }
.flow article:not(:last-child)::after, .service-flow article:not(:last-child)::after { content: ">"; position: absolute; right: -25px; top: 44%; color: #58a8ff; font-size: 44px; font-weight: 900; }
.flow b { color: #4aa5ff; font-size: 24px; }
.flow h3, .service-flow b { display: block; margin: 6px 0 10px; font-size: 21px; }
.flow p, .service-flow p { color: var(--muted); margin: 0; line-height: 1.5; }
.service-flow img { width: 52px; margin-bottom: 10px; }

.stat-grid article { min-height: 140px; display: grid; grid-template-columns: 90px 1fr; align-items: center; padding: 22px; }
.stat-grid img { width: 74px; grid-row: span 3; }
.stat-grid span { color: #d6e8ff; }
.stat-grid b { color: #65adff; font-size: 42px; line-height: 1; }
.stat-grid p { margin: 0; color: var(--muted); }

.case-grid article { overflow: hidden; min-height: 260px; }
.case-bg { height: 128px; }
.case-bg.game { background-image: linear-gradient(rgba(3,18,44,.04), rgba(3,18,44,.48)), url("./assets/case-game-new.png"); }
.case-bg.ecommerce { background-image: linear-gradient(rgba(3,18,44,.04), rgba(3,18,44,.48)), url("./assets/case-ecommerce-new.png"); }
.case-bg.pay { background-image: linear-gradient(rgba(3,18,44,.04), rgba(3,18,44,.48)), url("./assets/case-pay-new.png"); }
.case-bg.live { background-image: linear-gradient(rgba(3,18,44,.04), rgba(3,18,44,.48)), url("./assets/case-live-new.png"); }
.case-grid h3, .case-grid p, .case-grid span, .case-grid footer { margin-left: 24px; margin-right: 24px; }
.case-grid h3 { margin-top: -98px; position: relative; text-shadow: 0 2px 8px #000; }
.case-grid p { position: relative; color: #fff; margin-bottom: 50px; }
.case-grid footer { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; border: 1px solid rgba(83,153,255,.32); border-radius: 8px; overflow: hidden; }
.case-grid footer b { padding: 14px; color: #54a3ff; font-size: 28px; background: rgba(5,24,55,.72); }
.case-grid span { display: block; margin-top: 14px; color: var(--muted); }

.support-box { padding: 26px; }
.support-box h2 { margin: 0 0 18px; text-align: center; letter-spacing: 4px; }
.support-box > div { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.support-box article { min-height: 116px; display: grid; grid-template-columns: 58px 1fr; gap: 6px 14px; align-items: center; padding: 18px; border: 1px solid rgba(83,153,255,.28); border-radius: 8px; background: rgba(3,18,42,.35); }
.support-box img { width: 50px; grid-row: span 2; }
.support-box span { color: var(--muted); line-height: 1.45; }

.promise-grid article { display: grid; grid-template-columns: 120px 1fr; gap: 8px 22px; min-height: 150px; padding: 24px; align-items: center; }
.promise-grid img { width: 96px; grid-row: span 2; }
.promise-grid h3 { font-size: 26px; }

.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; }
.faq details { border-radius: 8px; margin-bottom: 0; }
.faq summary { list-style: none; cursor: pointer; padding: 18px 28px; font-size: 22px; color: #e9f2ff; display: flex; justify-content: space-between; }
.faq summary::after { content: "+"; font-size: 30px; font-weight: 900; }
.faq details[open] summary::after { content: "-"; }
.faq p { margin: 0; padding: 0 28px 18px; color: var(--muted); line-height: 1.7; }

.cta {
  width: min(1440px, calc(100% - 72px));
  min-height: 132px;
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 18px;
  align-items: center;
  margin: 28px auto 26px;
  padding: 28px 52px;
  background:
    radial-gradient(circle at 92% 50%, rgba(36,220,255,.2), transparent 18%),
    linear-gradient(90deg, rgba(12,43,89,.88), rgba(8,31,68,.62));
}
.cta h2 { margin: 0 0 10px; font-size: 34px; }
.cta p { margin: 0; color: var(--muted); font-size: 20px; }

.site-footer {
  display: grid;
  grid-template-columns: minmax(220px, 1.45fr) repeat(4, minmax(150px, 1fr));
  gap: 28px;
  padding: 28px clamp(36px, 5vw, 72px) 20px;
  border-top: 1px solid rgba(83,153,255,.28);
  background: rgba(4,16,38,.68);
}
.site-footer,
.footer-brand,
.site-footer h3,
.site-footer a,
.site-footer p {
  text-align: center;
}
.footer-brand .brand {
  justify-content: center;
}
.site-footer h3 { margin: 0 0 18px; font-size: 20px; }
.site-footer a, .site-footer p { display: block; color: var(--muted); line-height: 1.9; margin: 0; }
.site-footer p.contact-line {
  display: block;
  line-height: 1.75;
  margin-bottom: 4px;
  white-space: nowrap;
}
.site-footer p.contact-line a {
  display: inline;
  color: #d8eaff;
  line-height: inherit;
}
.site-footer p.contact-line .label {
  color: var(--muted);
}
.site-footer p.contact-line .sep {
  color: rgba(168,185,208,.62);
  margin: 0 2px;
}
.footer-brand p { margin-top: 18px; max-width: 370px; font-size: 18px; }
.socials { display: flex; gap: 22px; margin-top: 24px; }
.socials a { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 50%; background: #147dff; }
.socials img { width: 28px; height: 28px; object-fit: contain; }
.copyright { text-align: center; padding: 16px; color: var(--muted); border-top: 1px solid rgba(83,153,255,.18); }

@media (max-width: 1200px) {
  .nav { display: none; }
  .hero { grid-template-columns: 1fr; }
  .hero-visual { min-height: 420px; }
  .config-card { grid-template-columns: 130px 1fr 1fr 1fr; }
  .spec-col { border-left: 0; padding-left: 0; }
  .price-col { grid-column: span 2; }
  .adv-grid, .scene-grid { grid-template-columns: repeat(3, 1fr); }
  .cap-grid { grid-template-columns: repeat(4, 1fr); }
  .case-grid, .promise-grid, .stat-grid, .support-box > div { grid-template-columns: repeat(2, 1fr); }
  .flow, .service-flow { grid-template-columns: 1fr; gap: 12px; }
  .flow article::after, .service-flow article::after { display: none; }
  .site-footer { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 700px) {
  .site-header { height: 72px; padding: 0 16px; }
  .brand strong { font-size: 20px; }
  .brand img { width: 36px; height: 36px; }
  .header-cta { min-width: 108px; height: 44px; font-size: 15px; }
  .hero, .section, .cta { width: auto; padding-left: 16px; padding-right: 16px; }
  .hero { min-height: auto; padding-top: 48px; grid-template-columns: 1fr; }
  .hero h1 { font-size: 44px; }
  .hero-copy > p { font-size: 18px; }
  .hero-features, .config-card, .adv-grid, .cap-grid, .scene-grid, .network-panel, .case-grid, .promise-grid, .stat-grid, .support-box > div, .faq-grid, .cta, .site-footer { grid-template-columns: 1fr; }
  .hero-visual { min-height: 360px; }
  .server-rack { right: 80px; }
  .server-rack img { width: 130px; margin-left: -48px; }
  .shield-core { width: 230px; right: 90px; top: 125px; }
  .monitor { position: relative; top: 0; right: auto; width: 100%; margin-top: 250px; }
  .float-tg { right: 10px; top: auto; bottom: 16px; }
  .float-tg a { width: 76px; min-height: 94px; font-size: 13px; }
  .section-title { font-size: 28px; letter-spacing: 2px; }
  .section-title::before, .section-title::after { margin: 0 8px; }
  .config-card { padding: 48px 18px 18px; }
  .price-col { grid-column: auto; align-items: start; justify-items: start; }
  .network-list article, .promise-grid article, .stat-grid article, .support-box article { grid-template-columns: 1fr; }
  .map { min-height: 320px; }
  .cta .btn { width: 100%; }
  .site-footer { padding: 28px 16px; }
}

/* Compact typography and updated contact widgets */
.hero h1 {
  font-size: clamp(42px, 5.6vw, 72px);
}

.hero-copy > p {
  font-size: clamp(18px, 1.7vw, 24px);
}

.section-title {
  font-size: clamp(26px, 2.55vw, 38px);
}

.section-desc,
.config-name p,
.adv-grid p,
.cap-grid p,
.scene-grid p,
.case-grid span,
.promise-grid p,
.network-list span,
.flow p,
.service-flow p,
.stat-grid p,
.faq p,
.site-footer a,
.site-footer p,
.cta p,
.monitor p {
  font-size: 15px;
}

.btn {
  min-height: 58px;
  font-size: 20px;
}

.header-cta {
  font-size: 17px;
}

.config-name h3 {
  font-size: 24px;
}

.spec-col b,
.adv-grid h3,
.cap-grid h3,
.scene-grid h3,
.case-grid h3,
.promise-grid h3,
.network-list b {
  font-size: 21px;
}

.price {
  font-size: 38px;
}

.price small,
.buy-btn {
  font-size: 16px;
}

.monitor h3,
.site-footer h3 {
  font-size: 19px;
}

.monitor b {
  font-size: 30px;
}

.flow b {
  font-size: 22px;
}

.flow h3,
.service-flow b {
  font-size: 19px;
}

.service-flow b {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  line-height: 1.25;
}

.service-flow img {
  width: 46px;
}

.stat-grid b {
  font-size: 36px;
}

.case-grid footer b {
  font-size: 24px;
}

.support-box h2,
.cta h2 {
  font-size: 30px;
}

.faq summary {
  font-size: 19px;
}

.faq summary::after {
  font-size: 26px;
}

.footer-brand p {
  font-size: 16px;
}

.float-tg {
  display: grid;
  gap: 12px;
}

.float-tg a {
  min-height: 106px;
  font-size: 13px;
}

.float-tg .float-service {
  color: #1072ff;
}

.float-tg .float-service img {
  width: 38px;
  height: 38px;
  padding: 7px;
  border-radius: 50%;
  background: linear-gradient(180deg, #1b8fff, #0968ff);
}

@media (max-width: 700px) {
  .hero h1 {
    font-size: 36px;
  }

  .hero-copy > p {
    font-size: 16px;
  }

  .section-title {
    font-size: 24px;
  }

  .btn {
    min-height: 52px;
    font-size: 17px;
  }

  .float-tg a {
    width: 72px;
    min-height: 82px;
    font-size: 12px;
  }
}

/* Final compact pass */
.brand strong {
  font-size: 26px;
}

.nav {
  font-size: 16px;
}

.header-cta {
  font-size: 16px;
}

.hero h1 {
  font-size: clamp(38px, 5.1vw, 66px);
}

.hero-copy > p {
  font-size: clamp(17px, 1.55vw, 22px);
}

.section-title {
  font-size: clamp(24px, 2.25vw, 34px);
}

.section-desc,
.config-name p,
.adv-grid p,
.cap-grid p,
.scene-grid p,
.case-grid span,
.promise-grid p,
.network-list span,
.flow p,
.service-flow p,
.stat-grid p,
.faq p,
.site-footer a,
.site-footer p,
.cta p,
.monitor p,
.support-box span {
  font-size: 14px;
}

.btn {
  min-height: 54px;
  font-size: 18px;
}

.hero-features b {
  font-size: 16px;
}

.hero-features span {
  font-size: 13px;
}

.config-name h3 {
  font-size: 22px;
}

.spec-col b,
.adv-grid h3,
.cap-grid h3,
.scene-grid h3,
.case-grid h3,
.promise-grid h3,
.network-list b,
.support-box b {
  font-size: 19px;
}

.price {
  font-size: 34px;
}

.price small,
.buy-btn {
  font-size: 15px;
}

.monitor h3,
.site-footer h3 {
  font-size: 18px;
}

.monitor b {
  font-size: 28px;
}

.flow b {
  font-size: 20px;
}

.flow h3,
.service-flow b {
  font-size: 18px;
}

.stat-grid b {
  font-size: 32px;
}

.case-grid footer b {
  font-size: 22px;
}

.support-box h2,
.cta h2 {
  font-size: 27px;
}

.faq summary {
  font-size: 18px;
}

.faq summary::after {
  font-size: 24px;
}

.footer-brand p {
  font-size: 15px;
}

.config-name,
.spec-col,
.price-col,
.adv-grid article,
.cap-grid article,
.scene-grid article,
.network-list article,
.flow article,
.service-flow article,
.stat-grid article,
.case-grid article,
.support-box article,
.promise-grid article,
.faq details,
.cta,
.site-footer,
.footer-brand {
  text-align: center;
}

.network-list article,
.stat-grid article,
.support-box article,
.promise-grid article {
  justify-items: center;
}

.case-grid footer {
  text-align: center;
}

.service-flow article {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.service-flow b {
  display: inline-flex;
  align-items: baseline;
  justify-content: center;
  gap: 6px;
  width: 100%;
  white-space: nowrap;
}

.service-flow img {
  margin-left: auto;
  margin-right: auto;
}

@media (max-width: 700px) {
  .hero h1 {
    font-size: 34px;
  }

  .hero-copy > p {
    font-size: 15px;
  }

  .section-title {
    font-size: 22px;
  }

  .btn {
    min-height: 50px;
    font-size: 16px;
  }
}