:root {
  color-scheme: light;
  --bg: #fbf7ef;
  --bg-soft: #fffaf1;
  --ink: #1f1733;
  --muted: #6f6580;
  --primary: #7c3aed;
  --primary-dark: #5b21b6;
  --accent: #d6a84f;
  --card: rgba(255, 255, 255, 0.78);
  --line: rgba(31, 23, 51, 0.12);
  --shadow: 0 24px 80px rgba(75, 37, 118, 0.14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 18% 8%, rgba(214, 168, 79, 0.28), transparent 28%),
    radial-gradient(circle at 82% 12%, rgba(124, 58, 237, 0.22), transparent 30%),
    linear-gradient(180deg, #fffaf2 0%, var(--bg) 52%, #f5edff 100%);
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
p { line-height: 1.8; color: var(--muted); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px clamp(18px, 5vw, 72px);
  backdrop-filter: blur(18px);
  background: rgba(251, 247, 239, 0.76);
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: 0.02em; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 50%;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--primary), #c084fc);
  color: white;
  box-shadow: 0 12px 30px rgba(124, 58, 237, 0.3);
}
.desktop-nav { display: flex; gap: 22px; font-size: 14px; color: var(--muted); }
.desktop-nav a:hover { color: var(--primary); }
.header-cta { padding: 10px 16px; border-radius: 999px; background: var(--ink); color: white; font-weight: 700; font-size: 14px; }

.page { padding: 48px clamp(18px, 5vw, 72px) 72px; }
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 42px;
  align-items: center;
  min-height: calc(100vh - 92px);
}
.eyebrow { color: var(--primary); font-weight: 800; letter-spacing: 0.12em; font-size: 13px; text-transform: uppercase; }
h1 { font-size: clamp(42px, 7vw, 78px); line-height: 1.02; margin: 16px 0 20px; letter-spacing: -0.06em; }
h2 { font-size: clamp(28px, 4vw, 46px); line-height: 1.15; letter-spacing: -0.04em; margin: 0 0 16px; }
h3 { font-size: 20px; margin: 0 0 8px; }
.lead { font-size: clamp(17px, 2vw, 21px); max-width: 720px; }
.hero-actions, .actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-top: 28px; }
.microcopy { font-size: 13px; color: var(--muted); margin-top: 10px; }
.btn {
  border: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 18px;
  border-radius: 999px;
  font-weight: 800;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn.primary { background: linear-gradient(135deg, var(--primary), #a855f7); color: white; box-shadow: 0 16px 38px rgba(124,58,237,0.28); }
.btn.secondary { background: #fff; border: 1px solid var(--line); color: var(--ink); }
.btn.ghost { background: transparent; border: 1px solid var(--line); color: var(--ink); }

.hero-card {
  background: rgba(255,255,255,0.72);
  border: 1px solid rgba(255,255,255,0.7);
  box-shadow: var(--shadow);
  border-radius: 34px;
  padding: 28px;
  position: relative;
  overflow: hidden;
}
.hero-card::before {
  content: ""; position: absolute; inset: -90px -80px auto auto; width: 220px; height: 220px; border-radius: 50%;
  background: radial-gradient(circle, rgba(124,58,237,.25), transparent 70%);
}
.chart-orbit {
  width: 100%; aspect-ratio: 1; border-radius: 50%;
  display: grid; place-items: center;
  background: radial-gradient(circle, rgba(255,255,255,.9) 0 28%, rgba(124,58,237,.12) 29% 30%, transparent 31%),
              conic-gradient(from 35deg, rgba(124,58,237,.18), rgba(214,168,79,.2), rgba(124,58,237,.18));
  border: 1px solid var(--line);
}
.orbit-inner { width: 58%; aspect-ratio: 1; border-radius: 28px; background: rgba(255,255,255,.9); display: grid; place-items: center; text-align: center; padding: 18px; box-shadow: inset 0 0 0 1px var(--line); }
.orbit-inner strong { font-size: 28px; display: block; }

.section { margin-top: 76px; }
.section-head { max-width: 760px; margin-bottom: 26px; }
.grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card {
  background: var(--card);
  border: 1px solid rgba(255,255,255,0.75);
  border-radius: 26px;
  padding: 22px;
  box-shadow: 0 14px 45px rgba(75,37,118,.08);
}
.card-icon { font-size: 28px; margin-bottom: 12px; }
.card .btn { margin-top: 14px; padding: 11px 14px; font-size: 14px; }
.badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.badge { padding: 8px 12px; border-radius: 999px; background: rgba(124,58,237,.09); color: var(--primary-dark); font-weight: 700; font-size: 13px; }

.split { display: grid; grid-template-columns: .85fr 1.15fr; gap: 28px; align-items: start; }
.list { display: grid; gap: 12px; padding: 0; list-style: none; margin: 18px 0 0; }
.list li { padding: 14px 16px; border-radius: 18px; background: rgba(255,255,255,.7); border: 1px solid var(--line); }
.callout { border-left: 4px solid var(--primary); padding: 16px 18px; background: rgba(124,58,237,.08); border-radius: 18px; }

.site-footer { padding: 42px clamp(18px, 5vw, 72px); border-top: 1px solid var(--line); background: rgba(255,255,255,.45); }
.footer-links { display: flex; gap: 16px; flex-wrap: wrap; margin: 12px 0; color: var(--primary-dark); font-weight: 700; }
.fine-print { font-size: 12px; color: #857990; max-width: 960px; }

.modal.hidden { display: none; }
.modal { position: fixed; inset: 0; z-index: 50; background: rgba(15, 23, 42, .42); display: grid; place-items: center; padding: 20px; }
.modal-card { width: min(520px, 100%); border-radius: 28px; background: #fffaf7; padding: 26px; box-shadow: var(--shadow); position: relative; }
.modal-close { position: absolute; right: 18px; top: 14px; border: 0; background: transparent; font-size: 28px; cursor: pointer; color: var(--muted); }
.modal-actions { display: flex; gap: 12px; margin-top: 20px; flex-wrap: wrap; }

@media (max-width: 900px) {
  .desktop-nav { display: none; }
  .hero, .split { grid-template-columns: 1fr; min-height: auto; }
  .grid, .grid.three, .grid.two { grid-template-columns: 1fr; }
  .header-cta { padding: 9px 12px; }
  h1 { font-size: 44px; }
}