/* 棣保科技 · 大模型融合调度平台 */
:root {
  --brand: #1a4fd6;
  --brand-hover: #143da8;
  --brand-soft: #eaf0ff;
  --cyan: #11a8c8;
  --dark: #0b1120;
  --dark-2: #111a2f;
  --text: #182230;
  --muted: #5f6c7b;
  --subtle: #8a96a6;
  --border: #e2e8f0;
  --border-strong: #d5ddeb;
  --surface: #fff;
  --surface-alt: #f6f8fc;
  --code-bg: #0c1426;
  --code-text: #dce7f8;
  --shadow-sm: 0 8px 24px rgba(26, 45, 86, .06);
  --shadow-md: 0 20px 55px rgba(26, 45, 86, .11);
  --shadow-blue: 0 18px 40px rgba(26, 79, 214, .22);
  --radius-sm: 10px;
  --radius: 14px;
  --radius-lg: 22px;
  --container: 1240px;
  --header-h: 76px;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 18px);
  overflow-x: clip;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: clip;
  font-family: "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--surface);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

body,
button,
input,
textarea { font-family: inherit; }

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { color: inherit; }
p, h1, h2, h3 { margin-top: 0; }
h1, h2, h3 { color: var(--text); letter-spacing: -.035em; }
h1 { margin-bottom: 24px; font-size: clamp(2.8rem, 4.2vw, 3.75rem); line-height: 1.08; font-weight: 750; }
h2 { margin-bottom: 22px; font-size: 32px; line-height: 1.25; font-weight: 720; }
h3 { margin-bottom: 10px; font-size: 1.25rem; line-height: 1.35; }
svg { display: block; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

.container { width: min(calc(100% - 48px), var(--container)); margin-inline: auto; }
.section { position: relative; padding: 118px 0; }
.card-grid { display: grid; }

.skip-link {
  position: fixed;
  top: -100px;
  left: 18px;
  z-index: 1000;
  padding: 10px 16px;
  color: #fff;
  background: var(--brand);
  border-radius: 0 0 10px 10px;
  font-weight: 700;
}
.skip-link:focus-visible { top: 0; }

:focus-visible {
  outline: 3px solid rgba(26, 79, 214, .58);
  outline-offset: 3px;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  background: rgba(255, 255, 255, .76);
  border-bottom: 1px solid rgba(214, 223, 236, .75);
  backdrop-filter: blur(18px) saturate(145%);
  -webkit-backdrop-filter: blur(18px) saturate(145%);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 28px;
}

.brand { display: flex; align-items: center; flex: 0 0 auto; }
.brand img { width: auto; height: 38px; object-fit: contain; }

.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links > a:not(.button) {
  position: relative;
  color: #435063;
  font-size: 14px;
  font-weight: 600;
  transition: color .2s ease;
}
.nav-links > a:not(.button)::after {
  content: "";
  position: absolute;
  inset: auto 50% -10px;
  height: 2px;
  background: var(--brand);
  transition: inset .25s var(--ease);
}
.nav-links > a:not(.button):hover { color: var(--brand); }
.nav-links > a:not(.button):hover::after { inset-inline: 0; }

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 11px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255,255,255,.8);
}
.menu-toggle span { display: block; height: 2px; margin: 4px 0; background: #26364b; border-radius: 2px; transition: .25s ease; }
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid var(--brand);
  border-radius: 11px;
  color: #fff;
  background: var(--brand);
  box-shadow: 0 8px 20px rgba(26, 79, 214, .15);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: transform .25s var(--ease), background .2s ease, box-shadow .25s ease;
}
.button svg { width: 16px; height: 16px; }
.button:hover { background: var(--brand-hover); box-shadow: var(--shadow-blue); transform: translateY(-2px); }
.button[hidden] { display: none; }
.button-large { min-height: 56px; padding-inline: 27px; font-size: 15px; }
.button-secondary { color: #263a55; background: rgba(255,255,255,.72); border-color: #cfd9e8; box-shadow: 0 7px 20px rgba(31, 49, 83, .06); }
.button-secondary:hover { color: var(--brand); background: #fff; border-color: #a8b9da; box-shadow: var(--shadow-sm); }
.button-light { color: var(--dark); background: #fff; border-color: #fff; box-shadow: 0 12px 28px rgba(0,0,0,.2); }
.button-light:hover { color: var(--brand); background: #f7f9ff; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 19px;
  color: var(--brand);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .15em;
  text-transform: uppercase;
}
.status-dot { width: 7px; height: 7px; background: #1eb980; border-radius: 50%; box-shadow: 0 0 0 5px rgba(30,185,128,.1); }

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 158px 0 91px;
  background: linear-gradient(180deg, #f8fbff 0%, #fff 92%);
}
.hero-grid-lines,
.model-grid-bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image: linear-gradient(rgba(52, 92, 160, .052) 1px, transparent 1px), linear-gradient(90deg, rgba(52, 92, 160, .052) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: linear-gradient(to bottom, #000, transparent 88%);
}
.hero-grid-lines::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 12px 12px, rgba(26,79,214,.24) 1.2px, transparent 1.5px);
  background-size: 138px 138px;
}
.hero-orb { position: absolute; z-index: -1; border-radius: 50%; filter: blur(4px); pointer-events: none; }
.hero-orb-a { width: 620px; height: 620px; right: -150px; top: 40px; background: radial-gradient(circle, rgba(49, 133, 255, .14), transparent 67%); }
.hero-orb-b { width: 500px; height: 500px; left: -280px; top: 290px; background: radial-gradient(circle, rgba(17, 168, 200, .11), transparent 67%); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.06fr) minmax(520px, 0.94fr); align-items: center; gap: clamp(40px, 5vw, 72px); }
.hero-content { max-width: 660px; }
.hero h1 span { display: block; color: var(--brand); }
.hero-copy { max-width: 620px; margin-bottom: 31px; color: #526174; font-size: 17px; line-height: 1.85; }
.hero-actions { display: none; }
.trust-line { display: flex; flex-wrap: wrap; gap: 10px 22px; color: #667589; font-size: 12px; font-weight: 600; }
.trust-line span { display: flex; align-items: center; gap: 7px; }
.trust-line i { width: 5px; height: 5px; background: #61a0ff; border-radius: 50%; }
.hero-feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}
.hero-feature-card {
  position: relative;
  min-height: 104px;
  padding: 16px 18px;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(255,255,255,.9), rgba(245,249,255,.88));
  border: 1px solid rgba(208, 220, 240, .92);
  border-radius: 18px;
  box-shadow: 0 14px 34px rgba(39, 72, 128, .08);
}
.hero-feature-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, #3d7cff, #43c4d7);
}
.hero-feature-card strong {
  display: block;
  margin-bottom: 8px;
  color: #1f3252;
  font-size: 15px;
  line-height: 1.35;
}
.hero-feature-card p {
  margin: 0;
  color: #617289;
  font-size: 12px;
  line-height: 1.75;
}

.hero-model-visual {
  position: relative;
  min-height: 560px;
  width: 100%;
  max-width: 600px;
  margin-inline: auto;
  isolation: isolate;
}
.hero-stage {
  position: relative;
  min-height: 540px;
}
.hero-visual-bg,
.hero-stage-orbit {
  position: absolute;
  inset: 50% auto auto 50%;
  z-index: -2;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}
.hero-visual-bg-a {
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(83, 114, 255, .16), transparent 63%);
}
.hero-visual-bg-b {
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(54, 176, 224, .12), transparent 66%);
}
.orbit-shell {
  border: 1px solid rgba(144, 167, 224, .18);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.22);
  opacity: .9;
}
.orbit-shell-a { width: 460px; height: 460px; }
.orbit-shell-b { width: 350px; height: 350px; border-color: rgba(190, 206, 239, .18); }
.orbit-shell-c { width: 214px; height: 214px; border-color: rgba(122, 169, 255, .16); }
.orbit-track {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  width: 460px;
  height: 460px;
  animation: hero-orbit-rotate 30s linear infinite;
}
.orbit-item {
  position: absolute;
  inset: 0;
  display: inline-flex;
  align-items: flex-start;
  justify-content: center;
}
.orbit-item-1 { transform: rotate(0deg); }
.orbit-item-2 { transform: rotate(51deg); }
.orbit-item-3 { transform: rotate(103deg); }
.orbit-item-4 { transform: rotate(154deg); }
.orbit-item-5 { transform: rotate(206deg); }
.orbit-item-6 { transform: rotate(257deg); }
.orbit-item-7 { transform: rotate(309deg); }
.orbit-node {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: -14px;
  padding: 11px 14px;
  color: #26354d;
  background: rgba(255,255,255,.92);
  border: 1px solid rgba(214, 223, 239, .95);
  border-radius: 999px;
  box-shadow: 0 18px 42px rgba(99, 116, 160, .16);
  backdrop-filter: blur(12px);
  animation: hero-orbit-counter 30s linear infinite, hero-float 6s ease-in-out infinite;
}
/* 反向动画需按各自角度做相位补偿（整圈 30s，即每度 1/12s），否则节点会一直保持定位角度的倾斜 */
.orbit-item-1 .orbit-node { animation-delay: 0s, -.2s; }
.orbit-item-2 .orbit-node { animation-delay: -4.25s, -1.1s; }
.orbit-item-3 .orbit-node { animation-delay: -8.58s, -2s; }
.orbit-item-4 .orbit-node { animation-delay: -12.83s, -2.9s; }
.orbit-item-5 .orbit-node { animation-delay: -17.17s, -3.8s; }
.orbit-item-6 .orbit-node { animation-delay: -21.42s, -4.7s; }
.orbit-item-7 .orbit-node { animation-delay: -25.75s, -5.6s; }
.orbit-node strong {
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}
.orbit-node .provider-logo {
  width: 34px;
  height: 34px;
  border-radius: 11px;
  padding: 4px;
  background: rgba(255,255,255,.96);
  box-shadow: inset 0 0 0 1px rgba(196, 208, 232, .7);
}
.orbit-node .provider-logo img,
.provider-logo img,
.marquee-group i img,
.dark-model-node > i img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.hero-center-core {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 250px;
  padding: 0;
  color: var(--brand);
  text-align: center;
  transform: translate(-50%, -50%);
  pointer-events: none;
}
.center-logo-shell,
.hero-center-core strong { position: relative; z-index: 1; }
.center-logo-shell {
  display: none;
}
.center-logo-shell img {
  width: 76px;
  height: 76px;
  object-fit: contain;
  filter: drop-shadow(0 14px 28px rgba(52, 95, 224, .3));
}
.hero-center-core strong {
  display: block;
  color: var(--brand);
  font-size: 22px;
  line-height: 1.22;
  letter-spacing: .01em;
  text-shadow: 0 8px 22px rgba(26, 79, 214, .18);
}
@keyframes hero-orbit-rotate { to { transform: translate(-50%, -50%) rotate(360deg); } }
@keyframes hero-orbit-counter { to { transform: rotate(-360deg); } }
@keyframes hero-float { 0%, 100% { translate: 0 0; } 50% { translate: 0 -4px; } }
@supports not (translate: 0 0) {
  @keyframes hero-float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-4px); } }
}

.router-console {
  position: relative;
  max-width: 620px;
  overflow: hidden;
  color: #d9e5f7;
  background: linear-gradient(145deg, #121d34, #09101f);
  border: 1px solid rgba(117, 149, 201, .24);
  border-radius: 22px;
  box-shadow: 0 38px 90px rgba(15, 37, 76, .27), 0 1px 0 rgba(255,255,255,.08) inset;
  transform: perspective(1200px) rotateY(-2deg) rotateX(1deg);
}
.router-console::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.023) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.023) 1px, transparent 1px);
  background-size: 26px 26px;
}
.console-header { position: relative; display: flex; align-items: center; justify-content: space-between; height: 58px; padding: 0 20px; border-bottom: 1px solid rgba(138,164,204,.15); background: rgba(255,255,255,.02); }
.console-title, .console-live { display: flex; align-items: center; gap: 9px; }
.console-title strong { font-size: 13px; letter-spacing: .02em; }
.console-mark { width: 20px; height: 20px; border: 5px solid #5085ff; border-radius: 6px; box-shadow: 0 0 20px rgba(80,133,255,.5); }
.console-live { color: #8fa2be; font-size: 12px; }
.console-live i { width: 6px; height: 6px; background: #35d49a; border-radius: 50%; box-shadow: 0 0 0 4px rgba(53,212,154,.1); }
.console-body { position: relative; z-index: 1; padding: 18px 20px 20px; }
.console-label { display: flex; justify-content: space-between; margin-bottom: 11px; color: #8293ae; font-size: 12px; letter-spacing: .06em; }
.console-label small { color: #59708f; }
.provider-nodes { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 9px; }
.provider-node { display: flex; align-items: center; gap: 10px; min-width: 0; padding: 11px 10px; border: 1px solid rgba(122,153,201,.17); border-radius: 12px; background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.025)); box-shadow: inset 0 1px 0 rgba(255,255,255,.03); }
.provider-logo { display: grid; place-items: center; flex: 0 0 auto; width: 34px; height: 34px; border-radius: 11px; border: 1px solid rgba(156,183,231,.18); background: rgba(13,22,41,.86); box-shadow: 0 6px 18px rgba(2,8,18,.28); }
.provider-logo svg { width: 20px; height: 20px; fill: currentColor; color: currentColor; }
.provider-logo img { width: 20px; height: 20px; }
.provider-logo path,
.provider-logo circle,
.provider-logo rect { vector-effect: non-scaling-stroke; }
.vendor-kimi { color: #8b5cf6; }
.vendor-doubao { color: #4cc8ff; }
.vendor-zhipu { color: #36cfc9; }
.vendor-claude { color: #ff9b5c; }
.vendor-chatgpt { color: #4ade80; }
.vendor-google { color: #ffffff; background: linear-gradient(135deg, rgba(255,255,255,.12), rgba(255,255,255,.04)); }
.vendor-deepseek { color: #60a5fa; }
.provider-node div { display: flex; flex-direction: column; min-width: 0; }
.provider-node strong { overflow: hidden; color: #dce7f8; font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
.provider-node small { color: #42ce9b; font-size: 12px; }
.route-lines { height: 67px; margin-inline: 2px; }
.route-lines svg { width: 100%; height: 100%; }
.route-lines path { stroke: url("#none"); stroke: #315897; stroke-width: 1.2; stroke-dasharray: 4 4; }
.gateway-core { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 12px; padding: 13px 15px; border: 1px solid rgba(65,128,248,.38); border-radius: 12px; background: linear-gradient(90deg, rgba(31,79,169,.25), rgba(20,44,91,.35)); box-shadow: 0 0 32px rgba(40,102,222,.1) inset; }
.gateway-ring { position: relative; display: grid; place-items: center; width: 34px; height: 34px; border: 1px solid rgba(100,152,255,.45); border-radius: 50%; }
.gateway-ring::before { content: ""; width: 17px; height: 17px; background: #3979ef; border-radius: 5px; box-shadow: 0 0 16px #3979ef; transform: rotate(45deg); }
.gateway-ring span { position: absolute; width: 4px; height: 4px; background: #71d7ff; border-radius: 50%; transform: translate(17px, -8px); }
.gateway-core > div:nth-child(2) { display: flex; flex-direction: column; }
.gateway-core small { color: #7891b7; font-size: 11px; letter-spacing: .08em; }
.gateway-core strong { color: #fff; font-size: 12px; }
.gateway-load { display: flex; flex-direction: column; align-items: flex-end; }
.gateway-load strong { color: #60dcac; font-size: 12px; }
.route-modules { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 13px 0; }
.route-modules > div { display: grid; grid-template-columns: auto 1fr; gap: 1px 6px; padding: 9px; border: 1px solid rgba(125,153,194,.13); border-radius: 9px; background: rgba(255,255,255,.026); }
.route-modules svg { grid-row: 1 / 3; align-self: center; width: 16px; height: 16px; color: #6595f1; }
.route-modules span { color: #b8c8df; font-size: 12px; font-weight: 700; }
.route-modules i { color: #627795; font-size: 12px; font-style: normal; }
.request-stream { padding: 10px 12px; border: 1px solid rgba(125,153,194,.12); border-radius: 9px; background: rgba(2,8,18,.44); }
.request-stream > div:first-child { display: grid; grid-template-columns: auto 1fr auto auto; align-items: center; gap: 9px; font-size: 12px; }
.request-method { color: #82d9ff; font-weight: 800; }
.request-stream code { overflow: hidden; color: #91a3bd; text-overflow: ellipsis; white-space: nowrap; }
.request-stream time { color: #6e829f; }
.request-stream b { color: #44d29e; font-size: 12px; }
.stream-progress { height: 2px; margin-top: 8px; overflow: hidden; background: #17243b; border-radius: 2px; }
.stream-progress span { display: block; width: 83%; height: 100%; background: linear-gradient(90deg, #2d6ee7, #3ed1d6); }
.console-glow { position: absolute; right: -80px; bottom: -120px; width: 300px; height: 250px; background: radial-gradient(circle, rgba(28,92,226,.2), transparent 65%); }

.ecosystem-strip { display: flex; align-items: stretch; min-height: 102px; overflow: hidden; border-block: 1px solid var(--border); background: #fff; }
.strip-caption { display: flex; flex: 0 0 calc((100vw - min(calc(100vw - 48px), var(--container))) / 2 + 150px); flex-direction: column; justify-content: center; padding-left: max(24px, calc((100vw - var(--container)) / 2)); border-right: 1px solid var(--border); background: #fafbfe; }
.strip-caption span { color: #24354d; font-size: 13px; font-weight: 800; }
.strip-caption small { color: #929eae; font-size: 11px; }
.model-marquee { position: relative; display: flex; align-items: center; min-width: 0; overflow: hidden; flex: 1; mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent); }
.marquee-track { display: flex; width: max-content; animation: marquee 34s linear infinite; }
.marquee-group { display: flex; align-items: center; gap: 16px; padding: 0 8px; }
.marquee-group > span { display: flex; align-items: center; gap: 10px; min-width: 146px; color: #415069; font-size: 13px; font-weight: 700; white-space: nowrap; }
.marquee-group i { display: grid; place-items: center; width: 32px; height: 32px; padding: 4px; color: #416fce; background: #f0f4fd; border: 1px solid #dce5f4; border-radius: 10px; font: 700 11px/1 ui-monospace, monospace; font-style: normal; }
.marquee-group .vendor-kimi { color: #8b5cf6; }
.marquee-group .vendor-doubao { color: #0ea5e9; }
.marquee-group .vendor-zhipu { color: #14b8a6; }
.marquee-group .vendor-claude { color: #fb923c; }
.marquee-group .vendor-chatgpt { color: #22c55e; }
.marquee-group .vendor-google { color: #2563eb; }
.marquee-group .vendor-deepseek { color: #2563eb; }
@keyframes marquee { to { transform: translateX(-50%); } }

.metrics { position: relative; z-index: 2; padding: 58px 0 46px; background: linear-gradient(180deg, #f6f9fe 0%, #fff 100%); }
.metrics-heading { margin-bottom: 30px; }
.metrics-heading h2 { margin-bottom: 0; }
.metrics-shell {
  overflow: hidden;
  background: rgba(255,255,255,.94);
  border: 1px solid rgba(207,218,235,.9);
  border-radius: 24px;
  box-shadow: 0 18px 40px rgba(54, 78, 124, .06);
}
.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.metric-grid article {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 168px;
  padding: 24px 20px;
  text-align: center;
  background: linear-gradient(180deg, rgba(255,255,255,.96), rgba(247,250,255,.96));
}
.metric-grid article + article::before {
  content: "";
  position: absolute;
  left: 0;
  top: 28px;
  bottom: 28px;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(201, 212, 230, .95), transparent);
}
.metric-grid strong {
  margin-bottom: 10px;
  color: var(--brand);
  font: 750 clamp(2.2rem, 3vw, 2.9rem)/1 "Segoe UI", sans-serif;
  letter-spacing: -.05em;
}
.metric-grid span {
  color: #293a52;
  font-size: 14px;
  font-weight: 800;
  line-height: 1.45;
}

.solutions-section { background: #fff; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 50px; margin-bottom: 54px; }
.section-heading > div { max-width: 750px; }
.section-heading h2 { margin-bottom: 0; }
.section-heading > p { max-width: 410px; margin-bottom: 7px; color: var(--muted); font-size: 15px; line-height: 1.8; }
.section-heading.centered { display: block; max-width: 760px; margin-inline: auto; text-align: center; }
.section-heading.centered > p { max-width: 660px; margin: 18px auto 0; }
.section-heading.stacked { display: block; }
.section-heading.stacked h2 { margin-bottom: 16px; }
.section-heading.stacked > div { max-width: 760px; }
.section-heading.stacked > div > p:not(.eyebrow) {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}
.solutions-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.solution-card { --accent: var(--brand); position: relative; overflow: hidden; padding: 29px; border: 1px solid var(--border); border-radius: 18px; background: #fff; box-shadow: 0 9px 32px rgba(21,43,85,.045); transition: transform .35s var(--ease), border-color .25s ease, box-shadow .35s ease; }
.solution-card::after { content: ""; position: absolute; inset: 0 0 auto; height: 3px; background: var(--accent); transform: scaleX(.25); transform-origin: left; transition: transform .35s var(--ease); }
.solution-card:hover { transform: translateY(-6px); border-color: #cbd8ec; box-shadow: var(--shadow-md); }
.solution-card:hover::after { transform: scaleX(1); }
.solution-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 25px; }
.solution-number { color: #b3bfce; font: 650 12px/1 ui-monospace, monospace; }
.solution-card h3 { font-size: 19px; }
.solution-card > p { min-height: 79px; margin: 0; color: #768294; font-size: 13px; line-height: 1.75; }
.solution-arrow { display: flex; align-items: center; gap: 8px; margin: 21px 0; }
.solution-arrow span { width: 100%; height: 1px; background: linear-gradient(90deg, #e2e7ef, var(--accent)); }
.solution-arrow svg { flex: 0 0 auto; width: 19px; color: var(--accent); stroke: currentColor; }
.solution-answer { padding: 19px; background: color-mix(in srgb, var(--accent) 7%, white); border: 1px solid color-mix(in srgb, var(--accent) 15%, white); border-radius: 13px; }
.solution-answer small { display: block; margin-bottom: 5px; color: var(--accent); font-size: 11px; font-weight: 800; letter-spacing: .12em; }
.solution-answer strong { display: block; margin-bottom: 5px; color: #20334e; font-size: 15px; }
.solution-answer p { margin: 0; color: #65748a; font-size: 11px; }

.section-dark { background: var(--dark); color: #ccd8e9; }
.models-section {
  isolation: isolate;
  overflow: hidden;
  background: linear-gradient(180deg, #f8fbff 0%, #f5f9ff 34%, #fff 100%);
}
.model-grid-bg {
  opacity: 1;
  background:
    radial-gradient(circle at 16% 28%, rgba(115, 160, 255, .14), transparent 28%),
    radial-gradient(circle at 82% 24%, rgba(102, 198, 232, .12), transparent 26%),
    radial-gradient(circle at 50% 68%, rgba(26, 79, 214, .06), transparent 32%);
  filter: blur(8px);
}
.models-section h2,
.models-section h3 { color: #2a3240; }
.models-section .eyebrow { color: #b07a62; }
.models-section .section-heading.stacked > div > p:not(.eyebrow) { color: #7d6b67; }
.ecosystem-topology {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 150px .92fr 150px 1fr;
  align-items: center;
  min-height: 470px;
  padding: 44px 40px 4px;
  border: 1px solid rgba(250, 179, 146, .4);
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(255,249,245,.8), rgba(255,255,255,.78));
  box-shadow: 0 28px 80px rgba(255, 149, 90, .12);
  backdrop-filter: blur(14px);
}
.topology-column { display: flex; flex-direction: column; gap: 12px; }
.topology-label {
  display: block;
  margin-bottom: 10px;
  color: #b18b7a;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.model-node-column .topology-label,
.app-column .topology-label {
  text-align: center;
}
.dark-model-node,
.app-node {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 10px 12px;
  border: 1px solid rgba(240, 210, 196, .9);
  border-radius: 12px;
  background: rgba(255,255,255,.82);
  box-shadow: 0 8px 22px rgba(248, 171, 132, .08);
}
.dark-model-node > i {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  padding: 5px;
  background: #fff7f2;
  border: 1px solid rgba(240, 214, 203, .95);
  border-radius: 9px;
  font-style: normal;
}
.dark-model-node > span,
.app-node > span { display: flex; flex: 1; flex-direction: column; min-width: 0; }
.dark-model-node strong,
.app-node strong { color: #2f3342; font-size: 12px; }
.dark-model-node small,
.app-node small { color: #9b887f; font-size: 11px; }
.app-column {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
.app-column .topology-label {
  grid-column: 1 / -1;
}
.app-node-platform {
  justify-content: space-between;
  gap: 12px;
}
.app-node-platform > i {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  padding: 4px;
  background: #fff7f2;
  border: 1px solid rgba(240, 214, 203, .95);
  border-radius: 9px;
}
.app-node-platform > i img {
  width: 22px;
  height: 22px;
  object-fit: contain;
}
.dark-model-node b {
  width: 6px;
  height: 6px;
  background: #5ed3a8;
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(94, 211, 168, .5);
}
.app-node svg {
  width: 24px;
  height: 24px;
  padding: 4px;
  color: #f07856;
  background: rgba(255, 223, 209, .72);
  border-radius: 8px;
}
.gateway-column { text-align: center; }
.gateway-orbit {
  position: relative;
  display: grid;
  place-items: center;
  width: 156px;
  margin: 0 auto;
}
.gateway-logo-core {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #6a4638;
}
.gateway-logo-core img {
  display: none;
}
.gateway-orbit strong { font-size: 14px; }
.gateway-tags {
  grid-column: 1 / -1;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 28px;
}
.gateway-tags span {
  padding: 6px 10px;
  color: #a46e5a;
  background: rgba(255,255,255,.72);
  border: 1px solid rgba(243, 212, 197, .94);
  border-radius: 999px;
  font-size: 11px;
}
.topology-flow {
  position: relative;
  align-self: stretch;
  min-height: 220px;
  overflow: visible;
}
.topology-flow svg {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}
.topology-flow path {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.flow-openai { stroke: #ff8a3d; }
.flow-anthropic { stroke: #f3d27a; }
.flow-deepseek { stroke: #8ed9b0; }
.flow-zhipu { stroke: #6eb0ff; }
.flow-base path {
  stroke-width: .7;
  opacity: .32;
}
.flow-core path {
  stroke-width: 1.15;
  opacity: .95;
}
.flow-pulse {
  stroke-dasharray: 22 180;
  animation: topology-flow-move 4.2s linear infinite;
}
.flow-core .flow-openai { stroke: #ffb06a; }
.flow-core .flow-anthropic { stroke: #ffe399; }
.flow-core .flow-deepseek { stroke: #b6efce; }
.flow-core .flow-zhipu { stroke: #9dccff; }
.topology-flow-in .flow-anthropic.flow-pulse { animation-delay: -.9s; }
.topology-flow-in .flow-deepseek.flow-pulse { animation-delay: -1.8s; }
.topology-flow-in .flow-zhipu.flow-pulse { animation-delay: -2.7s; }
.topology-flow-out .flow-openai.flow-pulse { animation-delay: -.4s; }
.topology-flow-out .flow-anthropic.flow-pulse { animation-delay: -1.3s; }
.topology-flow-out .flow-deepseek.flow-pulse { animation-delay: -2.2s; }
.topology-flow-out .flow-zhipu.flow-pulse { animation-delay: -3.1s; }
@keyframes topology-flow-move {
  to { stroke-dashoffset: var(--flow-cycle, -202); }
}
.model-cloud { display: flex; }

.quick-section { background: #fff; }
.quick-grid { display: grid; grid-template-columns: .72fr 1.28fr; align-items: center; gap: 88px; }
.section-copy { color: var(--muted); font-size: 14px; }
.steps { position: relative; margin: 36px 0 0; padding: 0; list-style: none; }
.steps::before { content: ""; position: absolute; left: 20px; top: 29px; bottom: 35px; width: 1px; background: linear-gradient(var(--brand), #d5deed); }
.steps li { position: relative; display: grid; grid-template-columns: 42px 1fr; gap: 18px; margin-bottom: 27px; }
.steps li > span { position: relative; z-index: 1; display: grid; place-items: center; width: 42px; height: 42px; color: var(--brand); background: #fff; border: 1px solid #cbd9f2; border-radius: 50%; box-shadow: 0 4px 12px rgba(26,79,214,.08); font: 700 11px/1 monospace; }
.steps li:first-child > span { color: #fff; background: var(--brand); border-color: var(--brand); box-shadow: 0 8px 18px rgba(26,79,214,.22); }
.steps strong { display: block; margin: 2px 0 3px; font-size: 14px; }
.steps p { margin: 0; color: #8490a1; font-size: 11px; }

.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; }
.terminal-window,
.code-window,
.api-console {
  overflow: hidden;
  color: #243044;
  background: #fff;
  border: 1px solid #e6ebf3;
  border-radius: 22px;
  box-shadow: 0 18px 46px rgba(36, 58, 98, .1);
}
.api-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 58px;
  padding: 0 22px;
  border-bottom: 1px solid #edf1f6;
}
.code-tabs { display: flex; align-items: stretch; gap: 4px; min-width: 0; }
.code-tabs button {
  position: relative;
  padding: 18px 12px 16px;
  color: #8b97a8;
  background: transparent;
  border: 0;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}
.code-tabs button::after {
  content: "";
  position: absolute;
  inset: auto 8px -1px;
  height: 2px;
  background: #1db954;
  transform: scaleX(0);
  transition: transform .2s ease;
}
.code-tabs button[aria-selected="true"] { color: #1db954; }
.code-tabs button[aria-selected="true"]::after { transform: scaleX(1); }
.api-status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  color: #1db954;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .04em;
  white-space: nowrap;
}
.api-status i { width: 7px; height: 7px; background: currentColor; border-radius: 50%; }
.api-panel { padding: 22px 26px 0; }
.api-endpoint {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
}
.api-method {
  display: inline-grid;
  place-items: center;
  min-width: 52px;
  height: 24px;
  padding: 0 8px;
  color: #1f8a4c;
  background: #e8f8ee;
  border-radius: 6px;
  font: 800 11px/1 "Segoe UI", sans-serif;
  letter-spacing: .04em;
}
.api-endpoint code {
  color: #5b6778;
  font: 600 13px/1.4 "Cascadia Code", Consolas, monospace;
}
.api-block + .api-block { padding-top: 18px; border-top: 1px solid #eef1f6; }
.api-block h4 {
  margin: 0 0 12px;
  color: #9aa5b4;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .14em;
}
.api-console pre {
  margin: 0 0 18px;
  overflow: auto;
  color: #2b3a4d;
  background: transparent;
  font: 12.5px/1.75 "Cascadia Code", Consolas, monospace;
  tab-size: 2;
}
.api-console code { font: inherit; white-space: pre; }
.syn-cmd,
.syn-flag { color: #2f7d8a; }
.syn-string { color: #c47b3a; }
.syn-json-key { color: #3b6fd8; }
.syn-json-str { color: #2f9e6a; }
.syn-num { color: #7c5cbf; }
.api-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 4px -26px 0;
  padding: 13px 26px;
  color: #9aa5b4;
  background: #fafbfd;
  border-top: 1px solid #eef1f6;
  font: 700 11px/1.4 "Segoe UI", sans-serif;
  letter-spacing: .06em;
}

.faq-section { background: #f7f6f3; }
.faq-section .section-heading { margin-bottom: 18px; }
.faq-section .section-heading.stacked > div { max-width: 760px; margin-inline: auto; }
.faq-list {
  max-width: 760px;
  margin-inline: auto;
  border-top: 1px dashed #d9d5ce;
}
.faq-item { border-bottom: 1px dashed #d9d5ce; }
.faq-item button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  width: 100%;
  padding: 22px 4px;
  color: #1a1a1a;
  background: transparent;
  border: 0;
  font-size: 16px;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
}
.faq-item button svg {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  color: #9aa0a6;
  transition: transform .25s var(--ease);
}
.faq-item.is-open button svg { transform: rotate(180deg); }
.faq-answer {
  display: none;
  padding: 0 36px 20px 4px;
}
.faq-item.is-open .faq-answer { display: block; }
.faq-answer p {
  margin: 0;
  color: #7a7f86;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.8;
}

.contact-section { background: #fff; }
.contact-grid { display: grid; grid-template-columns: .82fr 1.18fr; align-items: start; gap: 90px; }
.contact-info > p:not(.eyebrow):not(.form-status) { max-width: 470px; color: var(--muted); font-size: 14px; }
.contact-stack { margin-top: 34px; border-top: 1px solid #d8e1ee; }
.contact-method { display: grid; grid-template-columns: 30px minmax(0, 1fr); align-items: start; gap: 18px; padding: 30px 0; border-bottom: 1px solid #d8e1ee; }
.contact-icon { display: grid; place-items: center; width: 24px; height: 24px; margin-top: 2px; color: #2962ff; }
.contact-icon svg { width: 24px; height: 24px; }
.contact-method > div { display: flex; flex-direction: column; min-width: 0; gap: 14px; }
.contact-title { color: #0f172a; font-size: 18px; font-weight: 700; line-height: 1.3; }
.contact-method a,
.contact-text { color: #3f536e; font-size: 17px; font-weight: 500; line-height: 1.5; word-break: break-word; }
.contact-form { padding: 34px; background: #fff; border: 1px solid var(--border); border-radius: 20px; box-shadow: var(--shadow-md); }
.form-heading { margin-bottom: 26px; }
.form-heading span { color: var(--brand); font-size: 11px; font-weight: 800; letter-spacing: .12em; }
.form-heading h3 { margin: 2px 0 0; font-size: 20px; }
.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.contact-form label { display: flex; flex-direction: column; gap: 7px; margin-bottom: 15px; color: #48586d; font-size: 12px; font-weight: 700; }
.contact-form input, .contact-form textarea { width: 100%; padding: 12px 13px; color: var(--text); background: #fafbfd; border: 1px solid #dfe5ef; border-radius: 9px; font-size: 12px; outline: none; transition: border-color .2s ease, box-shadow .2s ease, background .2s ease; }
.contact-form input:focus, .contact-form textarea:focus { background: #fff; border-color: #7095e5; box-shadow: 0 0 0 3px rgba(26,79,214,.09); }
.contact-form input::placeholder, .contact-form textarea::placeholder { color: #a9b2be; }
.contact-form textarea { min-height: 116px; resize: vertical; }
.form-submit { display: flex; align-items: center; margin-top: 6px; }
.form-status { min-height: 20px; margin: 8px 0 0; color: var(--brand); font-size: 12px; }
.copy-code-status { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; }

.site-footer {
  padding: 0;
  color: #7a8798;
  background: #fff;
  border-top: 1px solid #edf1f6;
}
.site-footer > .container {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.footer-top,
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.footer-top {
  min-height: 76px;
  padding-block: 22px;
}
.footer-brand img {
  width: auto;
  height: 42px;
  object-fit: contain;
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 28px;
}
.footer-nav a {
  color: #5f6c7b;
  font-size: 14px;
}
.footer-nav a:hover { color: var(--brand); }
.footer-bottom {
  position: relative;
  padding-block: 16px;
  border-top: 1px solid #edf1f6;
  justify-content: flex-end;
}
.footer-bottom p {
  margin: 0;
  color: #98a2b3;
  font-size: 12px;
  letter-spacing: .02em;
}
.footer-bottom p:last-child {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  color: #98a2b3;
}
.site-footer p:last-child { color: #98a2b3; }

/* Progressive enhancement: content stays visible if JS fails. */
.js-enabled [data-reveal].reveal-pending { opacity: 0; transform: translateY(24px); }
.js-enabled [data-reveal].reveal-pending.is-visible { opacity: 1; transform: translateY(0); transition: opacity .7s var(--ease), transform .7s var(--ease); }

@media (max-width: 1100px) {
  .nav-links { gap: 18px; }
  .brand span { display: none; }
  .hero-grid { grid-template-columns: .9fr 1.1fr; gap: 35px; }
  .router-console { transform: none; }
  .ecosystem-topology { grid-template-columns: 1fr 70px 1.05fr 70px 1fr; padding: 30px; }
  .quick-grid { gap: 48px; }
}

@media (max-width: 1024px) {
  .container { width: min(calc(100% - 40px), var(--container)); }
  .section { padding: 94px 0; }
  .menu-toggle { display: block; }
  .nav-links {
    position: absolute;
    inset: calc(100% + 8px) 20px auto;
    display: grid;
    gap: 0;
    padding: 12px;
    max-height: calc(100vh - var(--header-h) - 28px);
    overflow-y: auto;
    visibility: hidden;
    opacity: 0;
    background: rgba(255,255,255,.97);
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transform: translateY(-9px);
    transition: opacity .2s ease, transform .25s var(--ease), visibility .2s;
  }
  .nav-links.is-open { visibility: visible; opacity: 1; transform: translateY(0); }
  .nav-links > a:not(.button) { padding: 12px 13px; border-radius: 8px; }
  .nav-links > a:not(.button):hover { background: #f3f6fb; }
  .nav-links > a:not(.button)::after { display: none; }
  .nav-links .button { margin-top: 7px; }
  .hero { padding-top: 135px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-content { max-width: 780px; }
  .hero h1 span { display: inline; }
  .hero-feature-grid { max-width: 620px; }
  .hero-model-visual { min-height: 540px; max-width: 620px; }
  .hero-stage { min-height: 520px; }
  .hero-visual-bg-a { width: 480px; height: 480px; }
  .hero-visual-bg-b { width: 350px; height: 350px; }
  .orbit-shell-a,
  .orbit-track { width: 420px; height: 420px; }
  .orbit-shell-b { width: 320px; height: 320px; }
  .orbit-shell-c { width: 196px; height: 196px; }
  .hero-center-core { width: 230px; }
  .router-console { max-width: 760px; width: 100%; margin-inline: auto; }
  .solutions-grid { grid-template-columns: 1fr; }
  .solution-card > p { min-height: auto; }
  .ecosystem-topology { grid-template-columns: 1fr 50px 1fr 50px 1fr; padding: 24px; }
  .gateway-orbit { width: 145px; height: 145px; }
  .gateway-orbit > div { width: 94px; height: 94px; }
  .quick-grid { grid-template-columns: 1fr; }
  .quick-copy { max-width: 650px; }
  .terminal-window { width: 100%; }
  .contact-grid { gap: 45px; }
}

@media (max-width: 768px) {
  :root { --header-h: 68px; }
  .container { width: min(calc(100% - 32px), var(--container)); }
  .section { padding: 76px 0; }
  h1 { font-size: clamp(2.45rem, 10vw, 3.65rem); }
  h2 { font-size: 32px; }
  .nav-links { inset-inline: 16px; }
  .brand img { height: 34px; }
  .hero { padding: 118px 0 64px; }
  .hero-copy { font-size: 15px; }
  .hero-feature-grid { gap: 10px; margin-top: 24px; }
  .hero-feature-card { min-height: 96px; padding: 14px 15px; }
  .hero-feature-card strong { font-size: 14px; }
  .hero-model-visual { min-height: 500px; max-width: 520px; }
  .hero-stage { min-height: 500px; }
  .hero-visual-bg-a { width: 430px; height: 430px; }
  .hero-visual-bg-b { width: 320px; height: 320px; }
  .orbit-shell-a,
  .orbit-track { width: 360px; height: 360px; }
  .orbit-shell-b { width: 280px; height: 280px; }
  .orbit-shell-c { width: 172px; height: 172px; }
  .orbit-node { padding: 8px 10px; }
  .orbit-node strong { font-size: 11px; }
  .orbit-node .provider-logo { width: 30px; height: 30px; }
  .orbit-node .provider-logo svg { width: 18px; height: 18px; }
  .hero-center-core { width: 220px; }
  .center-logo-shell { width: 64px; height: 64px; }
  .center-logo-shell img { width: 64px; height: 64px; }
  .hero-center-core strong { font-size: 19px; }
  .router-console { border-radius: 16px; }
  .provider-nodes { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .provider-node { padding: 8px; }
  .route-modules { grid-template-columns: 1fr; }
  .route-modules > div { grid-template-columns: auto 1fr auto; }
  .route-modules svg { grid-row: auto; }
  .ecosystem-strip { display: block; padding-top: 13px; }
  .strip-caption { display: flex; flex-direction: row; justify-content: flex-start; gap: 10px; padding: 0 20px 10px; border: 0; }
  .model-marquee { min-height: 67px; border-top: 1px solid var(--border); }
  .metrics { padding-top: 42px; }
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .metric-grid article { min-height: 138px; padding: 20px 16px; }
  .metric-grid article::before { display: none; }
  .metric-grid article:nth-child(odd) { border-right: 1px solid rgba(207,218,235,.9); }
  .metric-grid article:nth-child(-n + 2) { border-bottom: 1px solid rgba(207,218,235,.9); }
  .section-heading { display: block; margin-bottom: 38px; }
  .section-heading > p { margin-top: 16px; }
  .ecosystem-topology { grid-template-columns: 1fr; gap: 20px; }
  .topology-column { display: grid; grid-template-columns: repeat(2, 1fr); }
  .topology-label { grid-column: 1 / -1; }
  .topology-flow { height: 42px; transform: rotate(90deg); }
  .gateway-column { padding-block: 5px; }
  .app-column { grid-template-columns: repeat(2, 1fr); }
  .app-node { min-width: 0; padding: 9px; }
  .app-node-platform > i { width: 28px; height: 28px; }
  .enterprise-panel { grid-template-columns: 1fr; padding: 38px 28px; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .container { width: min(calc(100% - 28px), var(--container)); }
  .section { padding: 66px 0; }
  .hero { padding-top: 108px; }
  .hero h1 { font-size: 2.6rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .trust-line { display: grid; grid-template-columns: repeat(2, 1fr); gap: 9px; }
  .hero-feature-grid { grid-template-columns: 1fr; }
  .hero-feature-card { min-height: auto; padding: 14px 15px; }
  .hero-model-visual { min-height: 440px; }
  .hero-stage { min-height: 440px; }
  .hero-visual-bg-a { width: 340px; height: 340px; }
  .hero-visual-bg-b { width: 250px; height: 250px; }
  .orbit-shell-a,
  .orbit-track { width: 290px; height: 290px; }
  .orbit-shell-b { width: 226px; height: 226px; }
  .orbit-shell-c { width: 138px; height: 138px; }
  .orbit-node { gap: 7px; padding: 7px 9px; border-radius: 14px; }
  .orbit-node strong { font-size: 11px; }
  .orbit-node .provider-logo { width: 26px; height: 26px; margin: 0; }
  .orbit-node .provider-logo svg { width: 15px; height: 15px; }
  .hero-center-core { width: 182px; }
  .center-logo-shell { width: 56px; height: 56px; margin-bottom: 10px; }
  .center-logo-shell img { width: 56px; height: 56px; }
  .hero-center-core strong { font-size: 16px; }
  .console-header { padding-inline: 14px; }
  .console-body { padding: 14px; }
  .provider-nodes { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 5px; }
  .provider-node { display: block; text-align: center; }
  .provider-logo { margin: 0 auto 6px; }
  .provider-node small { display: none; }
  .gateway-core { grid-template-columns: auto 1fr; }
  .gateway-load { display: none; }
  .request-stream > div:first-child { grid-template-columns: auto 1fr auto; }
  .request-stream time { display: none; }
  .metrics-shell { border-radius: 17px; }
  .metric-grid { grid-template-columns: 1fr; }
  .metric-grid article { min-height: 124px; padding: 18px; }
  .metric-grid article:nth-child(odd) { border-right: 0; }
  .metric-grid article:nth-child(-n + 2) { border-bottom: 0; }
  .metric-grid article:not(:last-child) { border-bottom: 1px solid rgba(207,218,235,.9); }
  .metric-grid strong { font-size: 2.05rem; }
  .solution-card { padding: 23px; }
  .ecosystem-topology { padding: 17px; }
  .topology-column { grid-template-columns: 1fr; }
  .topology-label { grid-column: auto; }
  .app-column { grid-template-columns: 1fr; }
  .gateway-orbit { width: 135px; height: 135px; }
  .terminal-window { margin-inline: -2px; }
  .terminal-window pre { height: 390px; padding: 22px 18px; font-size: 11px; }
  .terminal-header { grid-template-columns: auto 1fr auto; gap: 10px; }
  .terminal-header > span { justify-self: center; }
  .terminal-footer { align-items: flex-start; }
  .contact-form { padding: 24px 20px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .form-submit { align-items: stretch; flex-direction: column; }
  .form-submit .button { width: 100%; }
  .footer-top,
  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
    padding-block: 18px;
  }
  .footer-nav { justify-content: flex-start; }
  .footer-bottom p:last-child {
    position: static;
    left: auto;
    transform: none;
    align-self: center;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .marquee-track { animation: none; }
  .orbit-track { animation: none; }
  .orbit-item-2 .orbit-node { transform: rotate(-51deg); }
  .orbit-item-3 .orbit-node { transform: rotate(-103deg); }
  .orbit-item-4 .orbit-node { transform: rotate(-154deg); }
  .orbit-item-5 .orbit-node { transform: rotate(-206deg); }
  .orbit-item-6 .orbit-node { transform: rotate(-257deg); }
  .orbit-item-7 .orbit-node { transform: rotate(-309deg); }
  .model-marquee { overflow-x: auto; mask-image: none; }
  .marquee-group[aria-hidden="true"] { display: none; }
  .js-enabled [data-reveal].reveal-pending { opacity: 1; transform: none; }
}