/* GigaValue 极佳值 · Official Website Styles */

/* ── Design Tokens ─────────────────────────────────────────────── */
:root {
  --bg:     #050816;
  --bg2:    #0B1120;
  --bg3:    #0F1A2E;
  --card:   rgba(15, 23, 42, .68);
  --card2:  rgba(30, 41, 59, .46);
  --line:   rgba(148, 163, 184, .18);
  --line2:  rgba(148, 163, 184, .08);
  --text:   #FFFFFF;
  --muted:  #94A3B8;
  --muted2: #64748B;
  --indigo: #4F46E5;
  --cyan:   #06B6D4;
  --green:  #22C55E;
  --sky:    #BAE6FD;

  --radius-sm: 14px;
  --radius:    24px;
  --radius-lg: 36px;

  --shadow-glow-indigo: 0 0 80px rgba(79, 70, 229, .22);
  --shadow-glow-cyan:   0 0 80px rgba(6, 182, 212, .18);
  --shadow-card: 0 24px 64px rgba(0, 0, 0, .38);
}

/* ── Reset ─────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: Inter, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", ui-sans-serif, system-ui, sans-serif;
  background:
    radial-gradient(circle at 15% 8%,  rgba(79, 70, 229, .28), transparent 32%),
    radial-gradient(circle at 80% 18%, rgba(6, 182, 212, .2),  transparent 28%),
    radial-gradient(circle at 50% 70%, rgba(79, 70, 229, .1),  transparent 40%),
    linear-gradient(180deg, #050816 0%, #090F1D 50%, #050816 100%);
  color: var(--text);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ── Noise Overlay ─────────────────────────────────────────────── */
.noise {
  position: fixed; inset: 0; pointer-events: none; opacity: .045; z-index: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='256' height='256' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
}

/* ── Layout ────────────────────────────────────────────────────── */
.wrap { width: min(1180px, calc(100% - 48px)); margin: 0 auto; position: relative; z-index: 2; }

/* ── Navigation ────────────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(20px) saturate(1.4);
  background: rgba(5, 8, 22, .72);
  border-bottom: 1px solid var(--line);
}
.nav {
  height: 72px; display: flex; align-items: center; justify-content: space-between;
  width: min(1180px, calc(100% - 48px)); margin: 0 auto;
}
.brand {
  display: flex; align-items: center; gap: 12px; text-decoration: none;
  flex-shrink: 0;
}
.brand-icon {
  width: 36px; height: 36px; object-fit: contain; flex-shrink: 0;
  filter: drop-shadow(0 0 12px rgba(6, 182, 212, .4));
}
.brand-text strong { display: block; font-size: 17px; font-weight: 700; letter-spacing: .15px; }
.brand-text span   { display: block; font-size: 12px; color: var(--muted); letter-spacing: .04em; }

.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a { font-size: 14px; color: #CBD5E1; transition: color .2s; }
.nav-links a:hover { color: #fff; }

.nav-cta {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 20px; border-radius: 999px; font-size: 14px; font-weight: 600;
  background: linear-gradient(135deg, var(--indigo), var(--cyan));
  color: #fff; box-shadow: 0 0 32px rgba(79, 70, 229, .32);
  transition: opacity .2s, box-shadow .2s;
  white-space: nowrap; flex-shrink: 0;
}
.nav-cta:hover { opacity: .9; box-shadow: 0 0 48px rgba(79, 70, 229, .46); }

.nav-toggle {
  display: none; flex-direction: column; gap: 5px; padding: 8px;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--muted); border-radius: 2px; transition: .25s;
}

/* ── Buttons ───────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 24px; border-radius: 999px; font-weight: 600; font-size: 15px;
  border: 1px solid var(--line); background: rgba(255,255,255,.04);
  color: #E2E8F0; transition: background .2s, border-color .2s, box-shadow .2s;
}
.btn:hover { background: rgba(255,255,255,.08); border-color: rgba(148,163,184,.32); }
.btn.primary {
  border: 0; color: #fff;
  background: linear-gradient(135deg, var(--indigo), var(--cyan));
  box-shadow: 0 18px 48px rgba(79, 70, 229, .3);
}
.btn.primary:hover { box-shadow: 0 22px 60px rgba(79, 70, 229, .45); }

/* ── Section Base ──────────────────────────────────────────────── */
.section { padding: 80px 0; }
.section-head { margin-bottom: 44px; }
.kicker {
  display: inline-block; color: #67E8F9; font-weight: 800; font-size: 12px;
  letter-spacing: .18em; text-transform: uppercase; margin-bottom: 14px;
}
.section h2 { font-size: 46px; line-height: 1.06; letter-spacing: -1.8px; margin-bottom: 16px; }
.section .desc { font-size: 18px; line-height: 1.8; color: #CBD5E1; max-width: 640px; }
.section-head.center { text-align: center; }
.section-head.center .desc { margin: 0 auto; }

.grad {
  background: linear-gradient(135deg, #fff 0%, var(--sky) 42%, #818CF8 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Hero ──────────────────────────────────────────────────────── */
.hero { padding: 96px 0 80px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }

.eyebrow {
  display: inline-flex; gap: 10px; align-items: center;
  color: var(--sky); font-weight: 700; font-size: 13px;
  border: 1px solid rgba(6, 182, 212, .24); border-radius: 999px;
  padding: 8px 14px; background: rgba(6, 182, 212, .07);
  margin-bottom: 28px;
}
.pulse {
  width: 8px; height: 8px; background: var(--green); border-radius: 50%;
  box-shadow: 0 0 18px var(--green); animation: pulse 2s ease infinite;
}
@keyframes pulse { 0%,100% { box-shadow: 0 0 8px var(--green); } 50% { box-shadow: 0 0 22px var(--green); } }

.hero h1 {
  font-size: 68px; line-height: .97; letter-spacing: -3px; margin-bottom: 24px;
}
.hero .lead {
  font-size: 19px; line-height: 1.85; color: #CBD5E1; max-width: 560px; margin-bottom: 36px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 44px; }
.stat-card {
  padding: 20px; border: 1px solid var(--line);
  background: rgba(15, 23, 42, .48); border-radius: 20px;
  transition: border-color .2s;
}
.stat-card:hover { border-color: rgba(6, 182, 212, .32); }
.stat-card b { font-size: 22px; display: block; }
.stat-card p { margin-top: 6px; color: var(--muted); font-size: 13px; line-height: 1.55; }

/* Hero Visual / Orb */
.hero-visual {
  min-height: 540px; border: 1px solid var(--line); border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 50% 34%, rgba(6,182,212,.2), transparent 30%),
    linear-gradient(180deg, rgba(15,23,42,.78), rgba(15,23,42,.32));
  position: relative; overflow: hidden;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.07), var(--shadow-card);
}
.rings {
  position: absolute; inset: 52px;
  border: 1px solid rgba(148, 163, 184, .12); border-radius: 50%;
}
.rings::before, .rings::after {
  content: ""; position: absolute; inset: 54px;
  border: 1px dashed rgba(6, 182, 212, .18); border-radius: 50%;
}
.rings::after {
  inset: 108px; border-style: solid; border-color: rgba(79, 70, 229, .22);
  animation: spin 24s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.orb-center {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: 160px; height: 160px; border-radius: 44px;
  background: linear-gradient(135deg, var(--indigo), var(--cyan));
  box-shadow: 0 0 100px rgba(6, 182, 212, .34);
  display: flex; align-items: center; justify-content: center;
}
.orb-icon {
  width: 96px; height: 96px; object-fit: contain;
  filter: brightness(0) invert(1) drop-shadow(0 2px 8px rgba(0,0,0,.3));
}

.orb-node {
  position: absolute; padding: 11px 14px;
  border: 1px solid var(--line); background: rgba(2,6,23,.72);
  border-radius: 16px; backdrop-filter: blur(12px);
  color: #E2E8F0; font-size: 13px; font-weight: 600;
  box-shadow: 0 8px 32px rgba(0,0,0,.28);
  animation: float 6s ease-in-out infinite;
}
.orb-node em {
  display: block; color: var(--muted); font-style: normal;
  margin-top: 3px; font-size: 11px; font-weight: 400;
}
/* child 1=.rings  child 2=.orb-center  children 3-7 = orb-nodes */
.orb-node:nth-child(3) { left: 28px;  top: 48px;    animation-delay: 0s; }     /* AI Agent */
.orb-node:nth-child(4) { right: 24px; top: 90px;    animation-delay: -1.5s; }  /* Lakehouse */
.orb-node:nth-child(5) { left: 22px;  bottom: 120px; animation-delay: -3s; }   /* Streaming */
.orb-node:nth-child(6) { right: 24px; bottom: 68px;  animation-delay: -4.5s; } /* AI Insight */
.orb-node:nth-child(7) { left: 50%;   bottom: 40px;  transform: translateX(-50%); animation-delay: -2s; } /* Workflow */

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}
.orb-node:nth-child(7) {
  animation: float7 6s ease-in-out infinite -2s;
}
@keyframes float7 {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(-8px); }
}

/* ── Cards Grid ────────────────────────────────────────────────── */
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(15,23,42,.74), rgba(15,23,42,.38));
  border-radius: var(--radius); padding: 28px;
  position: relative; overflow: hidden;
  transition: border-color .25s, transform .25s;
}
.card:hover { border-color: rgba(6,182,212,.34); transform: translateY(-3px); }
.card::after {
  content: ""; position: absolute;
  width: 180px; height: 180px; right: -80px; top: -80px;
  border-radius: 50%; background: rgba(6,182,212,.08);
  pointer-events: none;
}
.card-icon {
  width: 48px; height: 48px; border-radius: 16px; margin-bottom: 22px;
  background: linear-gradient(135deg, rgba(79,70,229,.9), rgba(6,182,212,.8));
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
}
.card h3 { font-size: 21px; margin-bottom: 12px; font-weight: 700; }
.card p   { color: var(--muted); line-height: 1.72; font-size: 15px; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.chip {
  font-size: 12px; color: var(--sky); padding: 6px 10px; border-radius: 999px;
  background: rgba(6,182,212,.08); border: 1px solid rgba(6,182,212,.2);
  font-weight: 500;
}
.chip.violet { color: #A5B4FC; background: rgba(99,102,241,.1); border-color: rgba(99,102,241,.22); }
.chip.green  { color: #86EFAC; background: rgba(34,197,94,.08); border-color: rgba(34,197,94,.2); }

/* ── Feature Row (2-col) ───────────────────────────────────────── */
.feature-row {
  display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px;
  align-items: stretch; padding: 28px;
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  background: rgba(15,23,42,.44);
}
.feature-panel {
  border: 1px solid var(--line); background: rgba(2,6,23,.38);
  border-radius: var(--radius); padding: 28px;
}
.feature-list { display: grid; gap: 16px; margin-top: 22px; }
.feature-item { display: flex; gap: 12px; color: #CBD5E1; font-size: 15px; line-height: 1.6; }
.check-mark {
  width: 22px; height: 22px; border-radius: 50%;
  background: rgba(34,197,94,.12); color: #86EFAC;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; flex-shrink: 0; margin-top: 2px;
}

/* Dashboard Mock */
.dashboard-mock {
  min-height: 360px; border-radius: var(--radius); border: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(6,182,212,.1) 1px, transparent 1px),
    linear-gradient(0deg, rgba(79,70,229,.1) 1px, transparent 1px),
    radial-gradient(circle at 62% 48%, rgba(6,182,212,.18), transparent 30%),
    rgba(2,6,23,.5);
  background-size: 40px 40px, 40px 40px, auto, auto;
  position: relative; overflow: hidden;
}
.dash-inner {
  position: absolute; inset: 24px;
  display: grid; grid-template-columns: 170px 1fr; gap: 14px;
}
.dash-side, .dash-main {
  border: 1px solid var(--line); background: rgba(15,23,42,.66);
  border-radius: 16px; padding: 14px;
}
.dash-bar {
  height: 10px; border-radius: 99px;
  background: rgba(148,163,184,.16); margin: 10px 0;
}
.dash-bar.active { background: linear-gradient(90deg, var(--indigo), var(--cyan)); }
.dash-mini-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.dash-cell {
  height: 80px; border-radius: 14px;
  background: rgba(255,255,255,.04); border: 1px solid var(--line);
}

/* ── Tech Stack ────────────────────────────────────────────────── */
.tech-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.tech-card {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; background: rgba(15,23,42,.44);
  transition: border-color .2s, transform .2s;
}
.tech-card:hover { border-color: rgba(79,70,229,.4); transform: translateY(-2px); }
.tech-card h3 { font-size: 15px; font-weight: 700; margin-bottom: 14px; color: var(--sky); }
.tech-tag {
  display: block; color: var(--muted); padding: 7px 0;
  border-top: 1px solid var(--line2); font-size: 14px;
}

/* ── Enterprise Strip ──────────────────────────────────────────── */
.enterprise-strip { padding: 72px 0; }
.enterprise-inner {
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 56px; background: rgba(15,23,42,.52);
  display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center;
}
.enterprise-left h2 { font-size: 40px; letter-spacing: -1.6px; line-height: 1.1; margin-bottom: 18px; }
.enterprise-left p  { color: #CBD5E1; line-height: 1.75; font-size: 16px; }
.enterprise-badges { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.badge {
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 18px 20px; background: rgba(2,6,23,.38);
}
.badge strong { display: block; font-size: 15px; color: var(--sky); margin-bottom: 4px; }
.badge span   { font-size: 13px; color: var(--muted); line-height: 1.5; }

/* ── Contact / CTA ─────────────────────────────────────────────── */
.cta-section { padding: 80px 0; }
.cta-inner {
  border: 1px solid rgba(79,70,229,.28); border-radius: var(--radius-lg);
  padding: 64px; text-align: center;
  background: radial-gradient(circle at 50% 0%, rgba(79,70,229,.18), transparent 50%),
              rgba(15,23,42,.52);
}
.cta-inner h2 { font-size: 44px; letter-spacing: -1.8px; margin-bottom: 16px; }
.cta-inner p  { font-size: 18px; color: #CBD5E1; margin-bottom: 40px; max-width: 560px; margin-inline: auto; }


/* ── Footer ────────────────────────────────────────────────────── */
.footer {
  padding: 52px 0 36px;
  border-top: 1px solid var(--line);
}
.footer-grid {
  display: grid; grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 40px; margin-bottom: 40px;
}
.footer-brand .brand { margin-bottom: 14px; }
.footer-brand p { font-size: 14px; color: var(--muted); line-height: 1.7; max-width: 300px; }

.footer-col h4 { font-size: 13px; font-weight: 700; color: #94A3B8; margin-bottom: 16px; letter-spacing: .05em; }
.footer-col a  { display: block; font-size: 14px; color: var(--muted); margin-bottom: 10px; transition: color .2s; }
.footer-col a:hover { color: var(--text); }

.footer-bottom {
  border-top: 1px solid var(--line); padding-top: 24px;
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 16px; flex-wrap: wrap;
}
.footer-bottom p { font-size: 13px; color: var(--muted2); line-height: 1.7; }
.footer-icp a { color: var(--muted2); transition: color .2s; }
.footer-icp a:hover { color: var(--muted); }

/* ── Divider ───────────────────────────────────────────────────── */
.section-divider {
  height: 1px; background: var(--line); margin: 0;
  position: relative; z-index: 2;
}

/* ── Responsive ────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .tech-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-links.is-open {
    display: flex; flex-direction: column; gap: 0;
    position: absolute; top: 72px; left: 0; right: 0;
    background: rgba(5,8,22,.96); backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--line); padding: 16px 0;
    z-index: 99;
  }
  .nav-links.is-open a {
    padding: 13px 24px; border-bottom: 1px solid var(--line2); display: block;
  }
  .nav-toggle { display: flex; }
  .nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.is-open span:nth-child(2) { transform: translateY(-7px) rotate(-45deg); }

  .hero-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 46px; letter-spacing: -2px; }
  .hero-visual { min-height: 420px; }
  .hero-stats { grid-template-columns: 1fr; }

  .section h2 { font-size: 34px; letter-spacing: -1.2px; }
  .cards-grid { grid-template-columns: 1fr; }
  .feature-row { grid-template-columns: 1fr; }
  .dashboard-mock { min-height: 280px; }

  .enterprise-inner { grid-template-columns: 1fr; padding: 36px; gap: 36px; }
  .cta-inner { padding: 40px 24px; }
  .cta-inner h2 { font-size: 32px; }

  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 38px; }
  .hero .lead { font-size: 16px; }
  .tech-grid { grid-template-columns: 1fr; }
  .enterprise-badges { grid-template-columns: 1fr; }
}