:root {
  color-scheme: light;
  --bg: #f7f7f5;
  --surface: #ffffff;
  --surface-blue: #f2f4ff;
  --surface-violet: #f6f2ff;
  --ink: #111111;
  --muted: #63666c;
  --muted-2: #8a8d94;
  --line: rgba(17, 17, 17, .12);
  --line-soft: rgba(17, 17, 17, .075);
  --blue: #145cff;
  --blue-deep: #0a3ed5;
  --violet: #7056e8;
  --lavender: #dcd8ff;
  --sol: #ff9d2e;
  --sol-deep: #b94f00;
  --sol-soft: #fff1cc;
  --luna: #6757f5;
  --luna-cyan: #62d8ff;
  --luna-deep: #17164d;
  --dark: #171719;
  --wrap: min(1240px, calc(100% - 48px));
  --shadow: 0 28px 80px rgba(32, 42, 90, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background:
    radial-gradient(circle at 11% 6%, rgba(255,174,65,.11), transparent 24rem),
    radial-gradient(circle at 88% 9%, rgba(100,85,245,.13), transparent 30rem),
    var(--bg);
  font-family: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
img { display: block; max-width: 100%; }
h1, h2, h3, h4, p { margin-top: 0; }
.wrap { width: var(--wrap); margin-inline: auto; }
.mono { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(17,17,17,.08);
  background: rgba(247,247,245,.84);
  backdrop-filter: blur(22px) saturate(145%);
}
.site-header::after { position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; background: linear-gradient(90deg, transparent 4%, rgba(20,92,255,.5) 25%, rgba(255,157,46,.65) 51%, rgba(103,87,245,.55) 77%, transparent 96%); content: ""; }
.nav-shell { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; font-size: 15px; font-weight: 600; letter-spacing: -.015em; }
.brand-mark { position: relative; width: 34px; height: 34px; overflow: hidden; border-radius: 50%; background: conic-gradient(from 210deg, #155dff 0 36%, #8d61ee 36% 69%, #ff9d2e 69% 100%); }
.brand-mark::before { position: absolute; inset: 7px; border: 2px solid rgba(255,255,255,.92); border-radius: 50%; content: ""; }
.brand-mark::after { position: absolute; width: 18px; height: 7px; top: 13px; left: 8px; border-radius: 999px; content: ""; background: white; transform: rotate(-34deg); }
.brand-name { font-size: 17px; font-weight: 650; }
.brand-divider { color: #b2b2b2; font-weight: 400; }
.brand-astra { color: var(--muted); font-weight: 480; }
.nav-links { display: flex; align-items: center; gap: clamp(18px, 2.2vw, 32px); margin-left: auto; color: #4f5156; font-size: 14px; }
.nav-links a { transition: color .2s ease; }
.nav-links a:hover { color: var(--ink); }
.nav-actions { display: flex; align-items: center; gap: 9px; }
.lang-toggle { min-width: 78px; height: 40px; display: inline-flex; align-items: center; justify-content: center; gap: 7px; border: 1px solid var(--line); border-radius: 999px; color: var(--ink); background: rgba(255,255,255,.7); cursor: pointer; transition: background .2s ease, border-color .2s ease; }
.lang-toggle:hover { border-color: rgba(17,17,17,.23); background: white; }
.lang-toggle svg { width: 15px; fill: none; stroke: currentColor; stroke-width: 1.8; }

.download-button, .button-secondary { min-height: 52px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 0 21px; border: 1px solid transparent; border-radius: 999px; font-size: 15px; font-weight: 590; transition: transform .2s ease, background .2s ease, box-shadow .2s ease; }
.download-button { color: white; background: var(--dark); box-shadow: 0 12px 28px rgba(17,17,17,.12); }
.download-button:hover { transform: translateY(-2px); background: #000; box-shadow: 0 16px 34px rgba(17,17,17,.18); }
.download-button svg { width: 17px; fill: none; stroke: currentColor; stroke-width: 2; }
.download-small { min-height: 40px; padding-inline: 15px; box-shadow: none; font-size: 13px; }
.download-small svg { width: 15px; }
.button-secondary { border-color: var(--line); background: rgba(255,255,255,.72); }
.button-secondary:hover { transform: translateY(-2px); background: white; box-shadow: 0 12px 30px rgba(31,37,75,.08); }
.download-button:focus-visible, .button-secondary:focus-visible, .lang-toggle:focus-visible, .case-tabs button:focus-visible, .astra-model-actions a:focus-visible { outline: 3px solid rgba(20,92,255,.23); outline-offset: 3px; }

.hero {
  min-height: calc(100vh - 72px);
  padding: clamp(56px, 7vw, 92px) 0 64px;
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(480px, 1.1fr);
  align-items: center;
  gap: clamp(48px, 7vw, 96px);
}
.announcement { width: fit-content; display: inline-flex; align-items: center; gap: 9px; margin-bottom: 22px; padding: 8px 12px; border: 1px solid rgba(207,106,16,.18); border-radius: 999px; color: #9b4500; background: linear-gradient(90deg, rgba(255,172,54,.1), rgba(111,81,236,.07)); font-size: 12px; font-weight: 650; letter-spacing: .045em; }
.live-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--sol); box-shadow: 0 0 0 5px rgba(255,157,46,.11), 0 0 18px rgba(255,132,24,.58); }
h1 { max-width: 700px; margin-bottom: 22px; font-size: clamp(44px, 5.1vw, 72px); line-height: 1.02; letter-spacing: -.055em; font-weight: 520; }
h1 em { color: transparent; background: linear-gradient(92deg, #145cff 0%, #7455e9 44%, #e36c17 78%, #7954ed 100%); background-size: 180% 100%; background-clip: text; -webkit-background-clip: text; font-style: normal; animation: spectrum-shift 8s ease-in-out infinite alternate; }
@keyframes spectrum-shift { to { background-position: 100% 0; } }
.hero-lead { max-width: 630px; margin-bottom: 0; color: var(--muted); font-size: clamp(17px, 1.55vw, 20px); line-height: 1.72; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 11px; margin-top: 30px; }
.download-meta { display: flex; gap: 12px; margin: 12px 0 0 5px; color: var(--muted-2); font-size: 12px; }
.download-meta span + span::before { margin-right: 12px; content: "·"; }
.trust-row { display: flex; flex-wrap: wrap; gap: 11px; margin-top: 28px; }
.trust-row > span { display: inline-flex; align-items: center; gap: 7px; padding: 7px 10px; border: 1px solid var(--line-soft); border-radius: 999px; color: #55585e; background: rgba(255,255,255,.56); font-size: 13px; }
.trust-row i { width: 17px; height: 17px; display: grid; place-items: center; border-radius: 50%; color: white; background: linear-gradient(135deg, var(--blue), var(--violet)); font-size: 10px; font-style: normal; }
.trust-row b { font-weight: 500; }

.hero-stage { position: relative; min-height: 540px; display: grid; place-items: center; }
.hero-visual { position: relative; width: min(100%, 620px); aspect-ratio: 1.04 / 1; overflow: hidden; border: 1px solid rgba(33,54,118,.09); border-radius: 34px; background: white; box-shadow: var(--shadow); }
.hero-visual img { width: 100%; height: 100%; object-fit: cover; object-position: 58% center; }
.model-spectrum img { filter: saturate(.9) contrast(.96); }
.spectrum-wash { position: absolute; inset: 0; background: radial-gradient(circle at 18% 24%, rgba(255,189,70,.54), transparent 27%), radial-gradient(circle at 76% 75%, rgba(39,215,255,.32), transparent 27%), linear-gradient(135deg, rgba(12,74,230,.12), rgba(99,69,234,.08)); mix-blend-mode: screen; }
.celestial-model { position: absolute; z-index: 2; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.57); border-radius: 50%; color: white; text-align: center; box-shadow: 0 24px 55px rgba(25,30,88,.2); backdrop-filter: blur(8px); }
.celestial-model i { position: absolute; inset: 9px; border: 1px solid rgba(255,255,255,.32); border-radius: 50%; }
.celestial-model strong, .celestial-model small { position: relative; z-index: 1; display: block; }
.celestial-model strong { margin-top: 7px; font-size: 13px; letter-spacing: .08em; }
.celestial-model small { margin-top: -17px; opacity: .7; font: 8px/1 "SFMono-Regular", Consolas, monospace; letter-spacing: .12em; }
.celestial-sol { width: 150px; height: 150px; top: 78px; left: 42px; background: radial-gradient(circle at 37% 32%, #ffe8a3 0 4%, #ffb13f 25%, #e76812 68%, rgba(173,61,9,.77) 100%); box-shadow: 0 0 0 18px rgba(255,169,47,.09), 0 30px 60px rgba(163,72,14,.28); }
.celestial-astra { width: 190px; height: 190px; top: 168px; left: 208px; background: radial-gradient(circle at 35% 28%, #d2e7ff 0 4%, #4f82ee 29%, #4d3cc3 71%, rgba(35,26,120,.8) 100%); box-shadow: 0 0 0 25px rgba(83,79,224,.08), 0 35px 70px rgba(40,39,150,.3); }
.celestial-luna { width: 126px; height: 126px; right: 44px; bottom: 150px; background: radial-gradient(circle at 35% 29%, #e6fbff 0 6%, #74ddff 25%, #6557df 66%, rgba(29,29,95,.86) 100%); box-shadow: 0 0 0 16px rgba(92,204,255,.08), 0 28px 55px rgba(48,44,137,.28); }
.visual-top, .visual-bottom { position: absolute; z-index: 2; left: 22px; right: 22px; display: flex; align-items: center; justify-content: space-between; color: rgba(17,17,17,.66); font-size: 10px; letter-spacing: .08em; }
.visual-top { top: 20px; }
.visual-bottom { bottom: 20px; }
.online { display: inline-flex; align-items: center; gap: 6px; }
.online::before { width: 6px; height: 6px; border-radius: 50%; background: var(--blue); content: ""; }
.model-chip { position: absolute; z-index: 5; right: -18px; bottom: 60px; width: 246px; padding: 17px; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,255,255,.88); box-shadow: 0 20px 50px rgba(38,46,100,.16); backdrop-filter: blur(18px); }
.model-chip > span { color: var(--muted-2); font-size: 10px; letter-spacing: .1em; }
.model-chip > div { display: flex; align-items: center; justify-content: space-between; margin-top: 10px; }
.model-chip strong { font-size: 17px; font-weight: 630; }
.model-chip b { padding: 5px 8px; border-radius: 999px; color: white; background: linear-gradient(130deg, var(--blue), var(--violet)); font-size: 9px; letter-spacing: .08em; }
.model-chip p { margin: 11px 0 0; color: var(--muted); font-size: 10px; }
.family-chip { width: 286px; }
.family-chip .family-chip-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin-top: 11px; }
.family-chip .family-chip-list strong { display: flex; align-items: center; gap: 5px; font-size: 12px; font-weight: 600; }
.family-chip-list i { width: 7px; height: 7px; border-radius: 50%; }
.dot-astra { background: var(--blue); }
.dot-sol { background: var(--sol); }
.dot-luna { background: var(--luna); }

.benefit-rail { border-block: 1px solid var(--line-soft); background: white; }
.rail-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.rail-grid article { min-height: 148px; padding: 28px; border-right: 1px solid var(--line-soft); }
.rail-grid article:first-child { border-left: 1px solid var(--line-soft); }
.rail-grid small { display: block; margin-bottom: 18px; color: var(--blue); font-size: 11px; letter-spacing: .1em; }
.rail-grid h3 { margin-bottom: 8px; font-size: 17px; font-weight: 560; letter-spacing: -.02em; }
.rail-grid p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.62; }

.section { padding: clamp(80px, 8vw, 118px) 0; }
.section-head { display: grid; grid-template-columns: 1.12fr .88fr; align-items: end; gap: 46px; margin-bottom: 44px; }
.kicker { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; color: var(--blue); font-size: 12px; font-weight: 650; letter-spacing: .1em; text-transform: uppercase; }
.kicker::before { width: 25px; height: 1px; background: currentColor; content: ""; }
.section h2 { max-width: 840px; margin-bottom: 0; font-size: clamp(32px, 3.8vw, 52px); line-height: 1.1; letter-spacing: -.045em; font-weight: 510; }
.section-head > p, .start-head > p { max-width: 620px; margin: 0; color: var(--muted); font-size: 16px; line-height: 1.76; }

#astra { background: white; }
.astra-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: clamp(42px, 7vw, 88px); align-items: start; }
.feature-list { display: grid; border-top: 1px solid var(--line); }
.feature-list article { display: grid; grid-template-columns: 38px 1fr; gap: 17px; padding: 23px 0; border-bottom: 1px solid var(--line); }
.feature-list article > span { padding-top: 4px; color: var(--violet); font-size: 11px; }
.feature-list h3 { margin-bottom: 7px; font-size: 17px; font-weight: 570; }
.feature-list p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.66; }
.agent-console { overflow: hidden; border: 1px solid var(--line); border-radius: 28px; background: #f8f8fb; box-shadow: 0 24px 70px rgba(42,47,82,.08); }
.agent-console > header { height: 56px; display: flex; align-items: center; justify-content: space-between; padding: 0 20px; border-bottom: 1px solid var(--line-soft); color: var(--muted); background: white; font-size: 11px; }
.agent-console > header i { display: flex; gap: 5px; }
.agent-console > header b { width: 7px; height: 7px; border-radius: 50%; background: #d1d2d7; }
.agent-console > header b:first-child { background: #7160e8; }
.console-body { padding: clamp(24px, 4vw, 37px); }
.console-body > small { color: var(--blue); font-size: 10px; letter-spacing: .1em; }
.console-body > h3 { max-width: 590px; margin: 13px 0 28px; font-size: clamp(20px, 2vw, 25px); line-height: 1.42; letter-spacing: -.025em; font-weight: 520; }
.run-list { position: relative; display: grid; }
.run-list::before { position: absolute; top: 20px; bottom: 20px; left: 14px; width: 1px; background: #d9dce8; content: ""; }
.run-list > div { position: relative; display: grid; grid-template-columns: 30px 1fr auto; align-items: start; gap: 14px; padding: 11px 0; }
.run-list i { z-index: 1; width: 29px; height: 29px; display: grid; place-items: center; border: 1px solid rgba(20,92,255,.22); border-radius: 50%; color: var(--blue); background: white; font-size: 11px; font-style: normal; }
.run-list p { margin: 0; }
.run-list strong, .run-list span { display: block; }
.run-list strong { margin: 3px 0 4px; font-size: 14px; font-weight: 580; }
.run-list span, .run-list time { color: var(--muted-2); font-size: 11px; line-height: 1.5; }
.console-body > footer { margin-top: 23px; padding: 16px 18px; display: flex; align-items: center; justify-content: space-between; gap: 20px; border: 1px solid rgba(20,92,255,.13); border-radius: 15px; background: rgba(20,92,255,.045); }
.console-body > footer p { margin: 0; }
.console-body > footer strong, .console-body > footer span { display: block; }
.console-body > footer strong { margin-bottom: 4px; font-size: 13px; }
.console-body > footer span { color: var(--muted); font-size: 11px; }
.console-body > footer > b { color: var(--blue); font-size: 10px; white-space: nowrap; }

.gateway-section { background: white; }
.gateway-shell { position: relative; overflow: hidden; padding: clamp(38px, 6vw, 76px); border-radius: 34px; color: white; background: radial-gradient(circle at 92% 12%, rgba(255,171,55,.35), transparent 24%), linear-gradient(128deg, #074ce4 0%, #4f52e6 48%, #7553df 78%, #9e5b9d 118%); box-shadow: 0 32px 90px rgba(51,70,191,.23); }
.gateway-shell::after { position: absolute; width: 520px; height: 520px; top: -310px; right: -100px; border: 1px solid rgba(255,255,255,.22); border-radius: 50%; content: ""; box-shadow: 0 0 0 48px rgba(255,255,255,.035), 0 0 0 96px rgba(255,255,255,.025); }
.gateway-heading { position: relative; z-index: 1; display: grid; grid-template-columns: 1.1fr .9fr; align-items: end; gap: 54px; }
.gateway-heading .kicker { color: rgba(255,255,255,.72); }
.gateway-heading h2 { color: white; }
.gateway-heading > p { margin: 0; color: rgba(255,255,255,.72); font-size: 16px; line-height: 1.76; }
.gateway-flow { position: relative; z-index: 1; margin-top: 46px; padding: 16px; display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; align-items: center; gap: 12px; border: 1px solid rgba(255,255,255,.2); border-radius: 23px; background: rgba(7,16,72,.15); backdrop-filter: blur(12px); }
.gateway-flow > i { color: rgba(255,255,255,.48); font-style: normal; }
.flow-node { min-height: 146px; padding: 18px; display: flex; flex-direction: column; border: 1px solid rgba(255,255,255,.14); border-radius: 17px; background: rgba(255,255,255,.1); }
.flow-node.gateway-node { background: rgba(255,255,255,.18); }
.flow-node.model-node { color: #171128; background: rgba(255,255,255,.9); }
.flow-node small { margin: -30px 0 20px auto; opacity: .52; font-size: 10px; }
.flow-icon { width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.34); border-radius: 50%; font-size: 12px; font-weight: 650; }
.model-node .flow-icon { border-color: rgba(17,17,17,.17); color: var(--violet); }
.flow-node strong { margin-top: auto; font-size: 14px; font-weight: 600; }
.flow-node p { margin: 6px 0 0; color: inherit; opacity: .67; font-size: 11px; line-height: 1.45; }
.gateway-features { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 26px; border: 1px solid rgba(255,255,255,.17); background: rgba(255,255,255,.17); }
.gateway-features article { min-height: 230px; padding: 24px; background: rgba(29,30,122,.2); }
.gateway-index { display: block; margin-bottom: 49px; color: rgba(255,255,255,.65); font: 11px/1 "SFMono-Regular", Consolas, monospace; }
.gateway-features h3 { margin-bottom: 10px; font-size: 17px; font-weight: 560; }
.gateway-features p { margin: 0; color: rgba(255,255,255,.68); font-size: 13px; line-height: 1.65; }
.gateway-specs { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 26px; }
.gateway-specs > span { padding: 16px 17px; border-radius: 15px; background: rgba(255,255,255,.92); color: #191727; }
.gateway-specs small, .gateway-specs strong { display: block; }
.gateway-specs small { margin-bottom: 8px; color: #75727f; font-size: 11px; }
.gateway-specs strong { font-size: 11px; line-height: 1.45; overflow-wrap: anywhere; }
.gateway-note { position: relative; z-index: 1; margin: 17px 0 0; color: rgba(255,255,255,.62); font-size: 11px; line-height: 1.6; }

.models { background: radial-gradient(circle at 12% 22%, rgba(255,185,76,.2), transparent 25rem), radial-gradient(circle at 88% 18%, rgba(91,86,244,.22), transparent 29rem), linear-gradient(180deg, #f4f4fa 0%, #f8f6ff 100%); }
.model-family-grid { display: grid; grid-template-columns: 1.08fr 1fr 1fr; gap: 14px; }
.family-model-card { position: relative; min-height: 540px; overflow: hidden; padding: 25px; display: flex; flex-direction: column; border: 1px solid rgba(32,35,70,.11); border-radius: 27px; isolation: isolate; box-shadow: 0 25px 65px rgba(38,43,86,.1); transition: transform .28s ease, box-shadow .28s ease; }
.family-model-card:hover { transform: translateY(-5px); box-shadow: 0 34px 75px rgba(38,43,86,.16); }
.family-model-card > * { position: relative; z-index: 2; }
.family-model-card > header { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.family-model-card code { opacity: .68; font: 10px/1.3 "SFMono-Regular", Consolas, monospace; }
.family-badge { padding: 7px 10px; border: 1px solid currentColor; border-radius: 999px; font-size: 9px; font-weight: 700; letter-spacing: .08em; }
.family-symbol { position: relative; height: 180px; display: grid; place-items: center; }
.family-symbol::before, .family-symbol::after { position: absolute; border-radius: 50%; content: ""; }
.family-symbol::before { width: 122px; height: 122px; }
.family-symbol::after { width: 148px; height: 148px; border: 1px solid currentColor; opacity: .18; }
.family-symbol span { position: relative; z-index: 1; font-size: 66px; line-height: 1; letter-spacing: -.08em; font-weight: 480; }
.family-model-copy { margin-top: auto; }
.family-model-copy > .mono { margin-bottom: 11px; opacity: .6; font-size: 9px; letter-spacing: .11em; }
.family-model-copy h3 { margin-bottom: 13px; font-size: clamp(28px, 3vw, 40px); line-height: 1; letter-spacing: -.045em; font-weight: 540; }
.family-model-copy > p:last-child { min-height: 112px; margin: 0; opacity: .76; font-size: 13px; line-height: 1.66; }
.family-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 23px; border-top: 1px solid currentColor; opacity: .9; }
.family-facts > span { min-width: 0; padding: 15px 8px 0 0; }
.family-facts small, .family-facts strong { display: block; }
.family-facts small { margin-bottom: 7px; opacity: .57; font-size: 9px; }
.family-facts strong { font-size: 11px; line-height: 1.4; font-weight: 620; }
.family-astra { color: white; background: linear-gradient(145deg, rgba(16,60,190,.92), rgba(87,52,193,.88)), url("./astra-fluid-v3.png") 58% center / cover no-repeat; }
.family-astra::after { position: absolute; inset: 0; z-index: 0; background: radial-gradient(circle at 72% 17%, rgba(134,218,255,.4), transparent 31%), linear-gradient(180deg, transparent 42%, rgba(15,13,76,.45)); content: ""; }
.family-astra .family-symbol::before { background: radial-gradient(circle at 36% 28%, #e2f5ff, #74b3ff 18%, #5b51d9 56%, #29156e 100%); box-shadow: 0 0 0 18px rgba(255,255,255,.045), 0 26px 55px rgba(6,13,70,.34); }
.family-sol { color: #3d210d; background: radial-gradient(circle at 78% 12%, rgba(255,247,202,.96), transparent 24%), linear-gradient(155deg, #fff7e0 0%, #ffc967 55%, #f28a25 100%); }
.family-sol::after { position: absolute; width: 390px; height: 390px; right: -210px; top: -230px; border: 1px solid rgba(120,56,0,.18); border-radius: 50%; content: ""; box-shadow: 0 0 0 45px rgba(255,255,255,.1), 0 0 0 90px rgba(255,255,255,.07); }
.family-sol .family-badge { color: #9a4300; background: rgba(255,255,255,.28); }
.family-sol .family-symbol::before { background: radial-gradient(circle at 35% 28%, #fffbe8 0 6%, #ffe16f 26%, #ff9b2f 62%, #d75e13 100%); box-shadow: 0 0 0 19px rgba(255,255,255,.16), 0 25px 52px rgba(142,69,14,.24); }
.family-luna { color: #f4f5ff; background: radial-gradient(circle at 20% 16%, rgba(104,218,255,.3), transparent 28%), linear-gradient(155deg, #1b275f 0%, #302d86 52%, #6c4ee3 100%); }
.family-luna::after { position: absolute; width: 420px; height: 420px; right: -250px; bottom: -230px; border: 1px solid rgba(154,225,255,.22); border-radius: 50%; content: ""; box-shadow: 0 0 0 45px rgba(125,210,255,.04), 0 0 0 90px rgba(255,255,255,.025); }
.family-luna .family-badge { color: #a9ebff; background: rgba(255,255,255,.06); }
.family-luna .family-symbol::before { background: radial-gradient(circle at 35% 27%, #f5ffff 0 7%, #93e6ff 23%, #776be8 59%, #242452 100%); box-shadow: 0 0 0 18px rgba(116,221,255,.06), 0 26px 54px rgba(3,8,44,.35); }
.model-route-note { margin-top: 15px; padding: 18px 21px; display: grid; grid-template-columns: 220px 1fr; align-items: center; gap: 24px; border: 1px solid rgba(49,53,93,.1); border-radius: 18px; background: rgba(255,255,255,.68); backdrop-filter: blur(15px); }
.model-route-note span { color: var(--blue-deep); font-size: 10px; letter-spacing: .08em; }
.model-route-note p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.65; }
.astra-model-card { min-height: 550px; display: grid; grid-template-columns: 1.04fr .96fr; overflow: hidden; border: 1px solid rgba(35,36,70,.1); border-radius: 32px; background: white; box-shadow: 0 28px 80px rgba(48,49,106,.09); }
.astra-model-copy { padding: clamp(34px, 5vw, 62px); display: flex; flex-direction: column; }
.astra-model-copy > header { display: flex; align-items: center; justify-content: space-between; gap: 20px; color: var(--muted-2); font-size: 11px; }
.model-pill { padding: 7px 10px; border-radius: 999px; color: white; background: linear-gradient(120deg, var(--blue), var(--violet)); font-size: 10px; font-weight: 650; letter-spacing: .05em; }
.astra-model-copy h3 { margin: 58px 0 15px; font-size: clamp(34px, 3.8vw, 52px); line-height: 1.04; letter-spacing: -.05em; font-weight: 520; }
.astra-model-copy > p { max-width: 610px; margin-bottom: 0; color: var(--muted); font-size: 16px; line-height: 1.74; }
.astra-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 36px; border-block: 1px solid var(--line-soft); background: var(--line-soft); }
.astra-stats > span { padding: 17px 12px 17px 0; background: white; }
.astra-stats small, .astra-stats strong { display: block; }
.astra-stats small { margin-bottom: 9px; color: var(--muted-2); font-size: 10px; }
.astra-stats strong { font-size: 15px; font-weight: 570; }
.astra-model-actions { display: flex; flex-wrap: wrap; gap: 16px 24px; margin-top: auto; padding-top: 30px; }
.astra-model-actions a { color: var(--blue-deep); font-size: 13px; font-weight: 560; }
.astra-model-art { position: relative; min-height: 550px; overflow: hidden; background: #eef2ff; }
.astra-model-art img { width: 100%; height: 100%; object-fit: cover; object-position: 65% center; }
.astra-model-art span { position: absolute; right: 26px; bottom: -12px; color: rgba(255,255,255,.78); font-size: clamp(160px, 22vw, 300px); line-height: .8; letter-spacing: -.1em; font-weight: 520; }
.compact-model-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 18px; }
.compact-model-card { min-height: 240px; padding: 23px; display: flex; flex-direction: column; border: 1px solid rgba(35,36,70,.1); border-radius: 20px; background: rgba(255,255,255,.78); transition: transform .22s ease, background .22s ease, box-shadow .22s ease; }
.compact-model-card:hover { transform: translateY(-3px); background: white; box-shadow: 0 17px 42px rgba(48,49,106,.09); }
.compact-model-card > header { display: flex; align-items: center; justify-content: space-between; color: var(--muted-2); font-size: 10px; }
.compact-model-card > header b { padding: 5px 7px; border-radius: 999px; color: #5842bd; background: #ebe6ff; font-size: 9px; letter-spacing: .05em; }
.compact-model-card h3 { margin: 38px 0 9px; font-size: 21px; letter-spacing: -.03em; font-weight: 550; }
.compact-model-card > p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.58; }
.compact-model-card footer { display: flex; align-items: end; justify-content: space-between; gap: 10px; margin-top: auto; padding-top: 22px; }
.compact-model-card code { color: var(--muted-2); font-size: 10px; }
.compact-model-card footer span { color: var(--blue-deep); font-size: 11px; }
.fineprint { margin: 18px 0 0; color: var(--muted-2); font-size: 12px; line-height: 1.6; }

#cases { background: white; }
.case-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 25px; }
.case-tabs button { min-height: 42px; padding: 0 16px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); background: white; cursor: pointer; transition: color .2s ease, border-color .2s ease, background .2s ease; }
.case-tabs button:hover { color: var(--ink); border-color: rgba(17,17,17,.25); }
.case-tabs button[aria-selected="true"] { color: white; border-color: transparent; background: linear-gradient(100deg, #1659ee, #6652dd 58%, #ce7627); box-shadow: 0 8px 22px rgba(71,65,184,.2); }
.case-panels { overflow: hidden; border: 1px solid var(--line); border-radius: 29px; background: #f8f8fa; }
.case-panel { display: none; grid-template-columns: .88fr 1.12fr; min-height: 500px; }
.case-panel.active { display: grid; }
.case-panel > div { padding: clamp(31px, 5vw, 56px); }
.case-panel small { color: var(--blue); font-size: 11px; letter-spacing: .1em; }
.case-panel h3 { margin: 33px 0 17px; font-size: clamp(27px, 2.8vw, 38px); line-height: 1.12; letter-spacing: -.04em; font-weight: 510; }
.case-panel > div > p { color: var(--muted); font-size: 15px; line-height: 1.74; }
.case-panel footer { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin-top: 36px; border: 1px solid var(--line-soft); background: var(--line-soft); }
.case-panel footer > span { padding: 16px; background: white; }
.case-panel footer b, .case-panel footer i { display: block; }
.case-panel footer b { margin-bottom: 5px; font-size: 14px; font-weight: 570; }
.case-panel footer i { color: var(--muted-2); font-size: 11px; font-style: normal; }
.case-panel pre { display: grid; place-items: center; margin: 0; padding: 32px; overflow: hidden; border-left: 1px solid var(--line); background: linear-gradient(140deg, #eef3ff, #f1ecff); }
.case-panel code { width: min(100%, 570px); padding: 22px; overflow: auto; border: 1px solid rgba(255,255,255,.55); border-radius: 18px; color: #dce5ff; background: #151825; box-shadow: 0 28px 70px rgba(29,30,70,.2); font: 11px/1.9 "SFMono-Regular", Consolas, monospace; white-space: pre-wrap; }
.case-panel code i { color: #707994; font-style: normal; }
.case-panel code em { display: inline-block; width: 100%; color: #ffc6c4; background: rgba(255,106,106,.1); font-style: normal; }
.case-panel code b { display: inline-block; width: 100%; color: #d4d2ff; background: rgba(113,86,232,.15); font-weight: 400; }

.industry-section { background: linear-gradient(180deg, #f7f7f5, #eef4ff); }
.industry-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.industry-card { min-height: 320px; padding: 24px; display: flex; flex-direction: column; border: 1px solid var(--line-soft); border-radius: 21px; background: rgba(255,255,255,.82); transition: transform .22s ease, box-shadow .22s ease; }
.industry-card:hover { transform: translateY(-3px); box-shadow: 0 18px 45px rgba(44,66,126,.08); }
.industry-card > header { display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.industry-card > header span { color: var(--blue); font-size: 10px; }
.industry-card > header b { padding: 5px 7px; border-radius: 999px; color: #5d47c6; background: #ede8ff; font-size: 9px; letter-spacing: .05em; }
.industry-card h3 { margin: 47px 0 12px; font-size: 21px; letter-spacing: -.03em; font-weight: 550; }
.industry-card > p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.industry-card > footer { display: flex; flex-wrap: wrap; gap: 7px; margin-top: auto; padding-top: 25px; }
.industry-card > footer span { padding: 6px 9px; border: 1px solid var(--line-soft); border-radius: 999px; color: #5e626a; background: white; font-size: 10px; }
.industry-note { max-width: 920px; margin: 18px 0 0; color: var(--muted-2); font-size: 12px; line-height: 1.62; }

.start-section { padding-top: 24px; background: #eef4ff; }
.start-card { position: relative; overflow: hidden; padding: clamp(38px, 6vw, 70px); border: 1px solid rgba(41,56,114,.09); border-radius: 32px; background: radial-gradient(circle at 84% 20%, rgba(255,179,56,.32), transparent 23%), radial-gradient(circle at 73% 81%, rgba(82,210,255,.28), transparent 24%), linear-gradient(90deg, rgba(255,255,255,.98) 0%, rgba(255,255,255,.94) 44%, rgba(255,255,255,.16) 72%), url("./astra-fluid-v3.png") 70% center / cover no-repeat; box-shadow: var(--shadow); }
.start-head { display: grid; grid-template-columns: 1.1fr .9fr; align-items: end; gap: 52px; margin-bottom: 48px; }
.start-head > p { padding: 18px; border-radius: 16px; background: rgba(255,255,255,.75); backdrop-filter: blur(10px); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; border: 1px solid rgba(17,17,17,.09); background: rgba(17,17,17,.09); }
.steps article { min-height: 220px; padding: 25px; background: rgba(255,255,255,.9); backdrop-filter: blur(10px); }
.steps small { color: var(--blue); font-size: 11px; }
.steps h3 { margin: 46px 0 10px; font-size: 18px; font-weight: 560; }
.steps p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.65; }
.start-actions { display: flex; align-items: center; justify-content: space-between; gap: 25px; margin-top: 29px; }
.start-actions > p { display: flex; flex-wrap: wrap; gap: 10px 20px; margin: 0; color: var(--muted); font-size: 12px; }
.start-actions > p span { display: inline-flex; align-items: center; gap: 7px; }
.start-actions > p span::before { width: 6px; height: 6px; border-radius: 50%; background: var(--blue); content: ""; }

.site-footer { padding: 42px 0 48px; display: flex; justify-content: space-between; align-items: flex-start; gap: 30px; }
.site-footer p { max-width: 760px; margin: 0; color: var(--muted-2); font-size: 11px; line-height: 1.65; text-align: right; }
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .62s ease, transform .62s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 1100px) {
  .nav-links a { display: none; }
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 84px; }
  .hero-copy { max-width: 850px; }
  .hero-stage { min-height: 550px; }
  .hero-visual { width: min(680px, 92%); }
  .rail-grid { grid-template-columns: repeat(2, 1fr); }
  .rail-grid article:nth-child(3) { border-left: 1px solid var(--line-soft); }
  .rail-grid article:nth-child(-n+2) { border-bottom: 1px solid var(--line-soft); }
  .astra-grid { grid-template-columns: 1fr; }
  .feature-list { grid-template-columns: repeat(2, 1fr); column-gap: 28px; }
  .gateway-heading { grid-template-columns: 1fr; gap: 18px; }
  .gateway-flow { grid-template-columns: repeat(2, 1fr); }
  .gateway-flow > i { display: none; }
  .gateway-features { grid-template-columns: repeat(2, 1fr); }
  .gateway-specs { grid-template-columns: repeat(2, 1fr); }
  .astra-model-card { grid-template-columns: 1fr; }
  .astra-model-art { min-height: 360px; }
  .model-family-grid { grid-template-columns: repeat(2, 1fr); }
  .family-astra { grid-column: 1 / -1; min-height: 500px; }
  .compact-model-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  :root { --wrap: min(100% - 28px, 1240px); }
  .nav-shell { min-height: 66px; }
  .brand-divider, .brand-astra, .download-small span { display: none; }
  .download-small { width: 40px; padding: 0; }
  .lang-toggle { min-width: 70px; }
  .hero { padding: 62px 0 58px; gap: 34px; }
  h1 { font-size: clamp(40px, 11.5vw, 56px); }
  .hero-lead { font-size: 16px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-actions > a { width: 100%; }
  .download-meta { justify-content: center; }
  .hero-stage { min-height: 400px; }
  .hero-visual { width: 100%; border-radius: 24px; }
  .celestial-sol { width: 100px; height: 100px; top: 72px; left: 24px; }
  .celestial-astra { width: 132px; height: 132px; top: 135px; left: 36%; }
  .celestial-luna { width: 90px; height: 90px; right: 24px; bottom: 128px; }
  .celestial-model strong { font-size: 10px; }
  .celestial-model small { font-size: 6px; }
  .model-chip { right: 10px; bottom: 23px; width: 236px; }
  .rail-grid { grid-template-columns: 1fr; }
  .rail-grid article, .rail-grid article:first-child, .rail-grid article:nth-child(3) { border-left: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }
  .rail-grid article:last-child { border-bottom: 0; }
  .section { padding: 72px 0; }
  .section-head, .start-head { grid-template-columns: 1fr; gap: 19px; margin-bottom: 37px; }
  .feature-list { grid-template-columns: 1fr; }
  .agent-console, .case-panels, .gateway-shell, .astra-model-card, .start-card { border-radius: 22px; }
  .run-list > div { grid-template-columns: 30px 1fr; }
  .run-list time { display: none; }
  .console-body > footer { align-items: flex-start; flex-direction: column; }
  .gateway-shell { padding: 31px 20px; }
  .gateway-flow { grid-template-columns: 1fr; }
  .flow-node { min-height: 125px; }
  .gateway-features, .gateway-specs { grid-template-columns: 1fr; }
  .gateway-features article { min-height: 205px; }
  .astra-model-copy { padding: 31px 21px; }
  .astra-model-copy h3 { margin-top: 48px; }
  .astra-stats { grid-template-columns: repeat(2, 1fr); }
  .astra-model-art { min-height: 300px; }
  .model-family-grid { grid-template-columns: 1fr; }
  .family-astra { grid-column: auto; }
  .family-model-card { min-height: 500px; }
  .family-model-copy > p:last-child { min-height: 0; }
  .model-route-note { grid-template-columns: 1fr; gap: 9px; }
  .compact-model-grid { grid-template-columns: 1fr; }
  .compact-model-card { min-height: 220px; }
  .case-panel.active { grid-template-columns: 1fr; }
  .case-panel pre { min-height: 350px; border-top: 1px solid var(--line); border-left: 0; }
  .case-panel footer { grid-template-columns: 1fr; }
  .industry-grid { grid-template-columns: 1fr; }
  .industry-card { min-height: 295px; }
  .start-card { padding: 30px 20px; background: linear-gradient(180deg, rgba(255,255,255,.97), rgba(255,255,255,.72)), url("./astra-fluid-v3.png") center / cover no-repeat; }
  .steps { grid-template-columns: 1fr; }
  .steps article { min-height: 0; }
  .steps h3 { margin-top: 34px; }
  .start-actions { align-items: stretch; flex-direction: column; }
  .start-actions .download-button { width: 100%; }
  .site-footer { flex-direction: column; }
  .site-footer p { text-align: left; }
}

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