:root { color-scheme: dark; font-family: system-ui, "Microsoft YaHei", sans-serif; background: #10121d; color: #eeeaf4; }
* { box-sizing: border-box; }
body { margin: 0; background: radial-gradient(ellipse at 75% 15%, #503c593d, transparent 45%), radial-gradient(ellipse at 5% 40%, #35466533, transparent 40%); }
.top { padding: 24px 5%; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid #ffffff12; font-size: 12px; color: #aca3b9; }
.brand { color: #f1eaf8; font-weight: 750; font-size: 22px; text-decoration: none; }.brand span { font-size: 12px; color: #a69caf; margin-left: 5px; }
main { max-width: 1100px; margin: auto; padding: 0 28px; }
.hero { padding: 62px 0 46px; position: relative; }
.eyebrow, .number { font-size: 11px; letter-spacing: 3px; color: #c5a892; }
h1 { font-family: Georgia, "Songti SC", "SimSun", serif; font-size: clamp(40px, 6vw, 64px); line-height: 1.4; letter-spacing: 5px; font-weight: 500; margin: 20px 0; }.star { font-size: 34px; color: #ddbba0; margin-left: 22px; }
.lead { font-size: 19px; color: #e0d2e6; }.poem { line-height: 2; color: #ada4bb; font-size: 14px; }
.equation { display: flex; gap: 20px; flex-wrap: wrap; align-items: center; margin-top: 32px; font-size: 13px; color: #d6bdd4; }.equation b { color: #b69e80; font-weight: 400; }
.cards { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
.card { padding: 28px; border: 1px solid #73617e50; border-radius: 18px; background: #1c1b2ac9; }
h2 { font-weight: 500; font-size: 25px; letter-spacing: 2px; }.card h2 { margin: 14px 0; }.intro { color: #b7adc3; font-size: 13px; line-height: 1.9; margin-bottom: 25px; }
label { display: block; margin: 22px 0 10px; font-size: 14px; color: #e0d6e8; }
input { width: 100%; color: #eeeaf4; background: #11131f; border: 1px solid #54445e; border-radius: 8px; padding: 12px; font: inherit; }input:focus, button:focus-visible { outline: 2px solid #d6b6c6; outline-offset: 2px; }input[aria-invalid=true] { border-color: #f0ac9f; }
.hint { font-size: 12px; color: #b4a9bf; line-height: 1.9; }.primary { width: 100%; margin-top: 18px; background: #dfc1cb; color: #261d29; border-color: #dfc1cb; font-weight: 600; }
button { padding: 13px 16px; border: 1px solid #6b5778; border-radius: 9px; cursor: pointer; background: #272336; color: #e5d7eb; font: inherit; font-size: 13px; }button:disabled { opacity: .45; cursor: not-allowed; }
.feedback { color: #dfc5d8; font-size: 13px; line-height: 1.9; overflow-wrap: anywhere; }.feedback.failed { color: #f0ac9f; }
.controls { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin: 22px 0; }.controls span { font-size: 12px; color: #b4a9bf; margin-left: auto; }
.meeting { margin: 25px 0; padding: 16px; background: #151522; border-left: 2px solid #bfa4c8; font-size: 12px; color: #baaabd; line-height: 1.8; }.countdown { font-size: 22px; color: #e5c3d8; font-variant-numeric: tabular-nums; letter-spacing: 1px; }
.story { margin: 65px 0 45px; text-align: center; }.story > p { color: #c7b7cd; line-height: 2; }.story .quiet { font-size: 13px; color: #afa2bb; }
.principles-panel { max-width: 860px; margin: 35px auto 0; text-align: left; border: 1px solid #59496370; border-radius: 12px; padding: 18px 22px; }.principles-heading { color: #dac4df; font-size: 16px; font-weight: 500; margin: 0; }.principles { font-size: 13px; line-height: 2; color: #b8acc5; }.principles h3 { color: #e1cddf; font-weight: 500; font-size: 15px; margin-top: 24px; }.principles a { color: #ddbacd; }
progress { width: 100%; accent-color: #dfc1cb; }footer { display: flex; justify-content: space-between; gap: 12px; padding: 22px 0 30px; border-top: 1px solid #ffffff12; color: #a59aaf; font-size: 12px; }[hidden] { display: none !important; }
@media (max-width: 750px) { main { padding: 0 20px; }.cards { grid-template-columns: 1fr; }.hero { padding-top: 40px; }.card { padding: 22px; }.equation { gap: 12px; }.controls span { margin-left: 0; }footer { flex-wrap: wrap; } }