:root { color-scheme: light; font-family: Arial, "Microsoft YaHei", sans-serif; color: #12213a; background: #f4f7fb; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: linear-gradient(135deg, #eef4fb 0%, #ffffff 55%, #edf5ef 100%); }
header { height: 68px; padding: 0 7vw; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid #dce3ec; }
header strong { font-size: 20px; }
button { border: 1px solid #b7c3d1; background: #fff; color: #12213a; padding: 8px 14px; cursor: pointer; }
main { width: min(900px, 86vw); padding: 18vh 0 12vh; margin: 0 auto; }
.eyebrow { color: #16775c; font-weight: 700; }
h1 { font-size: clamp(36px, 7vw, 72px); max-width: 800px; margin: 18px 0; line-height: 1.08; }
main > p:last-child { max-width: 620px; font-size: 18px; line-height: 1.8; color: #526175; }