/* Lumora · 夜空极光 —— 深色精致暗奢 */
:root {
  --ink: #0a0a0f;
  --ink-2: #101018;
  --indigo: #5e5ce6;
  --violet: #bf5af2;
  --coral: #ff6482;
  --mint: #59e6b8;
  --txt: rgba(255, 255, 255, 0.92);
  --txt-2: rgba(255, 255, 255, 0.62);
  --txt-3: rgba(255, 255, 255, 0.38);
  --line: rgba(255, 255, 255, 0.08);
  --card: rgba(255, 255, 255, 0.045);
  --serif: "Fraunces", "Noto Serif SC", serif;
  --sans: -apple-system, "PingFang SC", "SF Pro Text", "Segoe UI", sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--ink);
  color: var(--txt);
  font-family: var(--sans);
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
::selection { background: rgba(94, 92, 230, 0.45); }

/* 星尘背景 */
.stars {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    radial-gradient(1px 1px at 12% 22%, rgba(255,255,255,.5) 50%, transparent 51%),
    radial-gradient(1px 1px at 78% 12%, rgba(255,255,255,.35) 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 55% 38%, rgba(191,90,242,.5) 50%, transparent 51%),
    radial-gradient(1px 1px at 30% 68%, rgba(255,255,255,.3) 50%, transparent 51%),
    radial-gradient(1px 1px at 88% 55%, rgba(94,92,230,.55) 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 42% 88%, rgba(255,255,255,.28) 50%, transparent 51%),
    radial-gradient(1px 1px at 65% 75%, rgba(255,100,130,.4) 50%, transparent 51%),
    radial-gradient(1px 1px at 8% 90%, rgba(255,255,255,.3) 50%, transparent 51%);
  animation: twinkle 7s ease-in-out infinite alternate;
}
@keyframes twinkle { from { opacity: .55; } to { opacity: 1; } }

main, nav, footer { position: relative; z-index: 1; }

/* 导航 */
nav {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1080px; margin: 0 auto; padding: 26px 24px;
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--txt); }
.brand img { width: 34px; height: 34px; border-radius: 9px; }
.brand span { font-family: var(--serif); font-weight: 600; font-size: 19px; letter-spacing: .04em; }
.nav-right { display: flex; align-items: center; gap: 22px; }
.nav-right a { color: var(--txt-2); text-decoration: none; font-size: 14px; transition: color .25s; }
.nav-right a:hover { color: var(--txt); }
.lang-toggle {
  border: 1px solid var(--line); background: none; color: var(--txt-2);
  border-radius: 999px; padding: 5px 14px; font-size: 13px; cursor: pointer; transition: all .25s;
}
.lang-toggle:hover { color: var(--txt); border-color: rgba(255,255,255,.25); }

/* 英雄区 */
.hero {
  max-width: 1080px; margin: 0 auto; padding: 60px 24px 110px;
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center;
}
.ring-wrap { position: relative; width: 300px; height: 300px; margin-bottom: 46px; }
.ring {
  position: absolute; inset: 0; border-radius: 50%;
  background: conic-gradient(from 210deg, var(--indigo), var(--violet) 40%, var(--coral) 72%, var(--indigo));
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 26px), #000 calc(100% - 25px));
          mask: radial-gradient(farthest-side, transparent calc(100% - 26px), #000 calc(100% - 25px));
  animation: spin 26s linear infinite;
}
.ring-glow {
  position: absolute; inset: -12%; border-radius: 50%; filter: blur(46px); opacity: .5;
  background: conic-gradient(from 210deg, var(--indigo), var(--violet) 40%, var(--coral) 72%, var(--indigo));
  animation: spin 26s linear infinite, breathe 5.5s ease-in-out infinite alternate;
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes breathe { from { opacity: .32; } to { opacity: .62; } }
.ring-core {
  position: absolute; inset: 0; display: grid; place-items: center; text-align: center;
}
.ring-core .score { font-family: var(--serif); font-size: 64px; font-weight: 500; line-height: 1; }
.ring-core .score-label { color: var(--txt-3); font-size: 13px; letter-spacing: .28em; margin-top: 10px; text-transform: uppercase; }

.hero h1 {
  font-family: var(--serif); font-weight: 500; font-size: clamp(38px, 5vw, 56px);
  line-height: 1.22; letter-spacing: .01em; margin-bottom: 22px;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, var(--indigo), var(--violet) 55%, var(--coral));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.sub { color: var(--txt-2); font-size: 17px; max-width: 46ch; margin-bottom: 38px; }
.cta-row { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.cta {
  display: inline-flex; align-items: center; gap: 10px;
  background: linear-gradient(120deg, var(--indigo), var(--violet));
  color: #fff; text-decoration: none; font-size: 15px; font-weight: 600;
  padding: 14px 28px; border-radius: 999px;
  box-shadow: 0 8px 34px rgba(94, 92, 230, 0.42);
  transition: transform .25s, box-shadow .25s;
}
.cta:hover { transform: translateY(-2px); box-shadow: 0 12px 44px rgba(191, 90, 242, 0.5); }
.cta-note { color: var(--txt-3); font-size: 13px; }

/* 手机浮窗 */
.phone-col { position: relative; display: flex; justify-content: center; }
.phone {
  width: 292px; border-radius: 42px; padding: 10px;
  background: linear-gradient(160deg, rgba(255,255,255,.14), rgba(255,255,255,.03));
  box-shadow: 0 40px 90px rgba(0,0,0,.6), 0 0 80px rgba(94,92,230,.18);
  transform: rotate(4deg);
}
.phone img { width: 100%; border-radius: 34px; display: block; }
.phone.back {
  position: absolute; right: 4%; top: 12%; width: 240px; transform: rotate(-7deg) translateY(26px);
  opacity: .55; filter: saturate(.85);
}

/* 区块 */
section { max-width: 1080px; margin: 0 auto; padding: 88px 24px; }
.kicker { color: var(--txt-3); font-size: 12.5px; letter-spacing: .3em; text-transform: uppercase; margin-bottom: 14px; }
h2 { font-family: var(--serif); font-weight: 500; font-size: clamp(28px, 3.6vw, 38px); margin-bottom: 14px; }
.lead { color: var(--txt-2); max-width: 60ch; margin-bottom: 46px; }

.trio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 22px; padding: 30px 26px;
  transition: transform .3s, border-color .3s;
}
.card:hover { transform: translateY(-4px); border-color: rgba(255,255,255,.16); }
.dot { width: 42px; height: 42px; border-radius: 50%; margin-bottom: 18px; position: relative; }
.dot::after { content: ""; position: absolute; inset: -8px; border-radius: 50%; filter: blur(14px); opacity: .55; background: inherit; }
.dot.indigo { background: linear-gradient(135deg, var(--indigo), var(--violet)); }
.dot.mint { background: linear-gradient(135deg, var(--mint), var(--indigo)); }
.dot.coral { background: linear-gradient(135deg, var(--coral), var(--violet)); }
.card h3 { font-size: 17px; margin-bottom: 8px; }
.card p { color: var(--txt-2); font-size: 14.5px; }

/* AI 晨报样卡 */
.report-split { display: grid; grid-template-columns: .9fr 1.1fr; gap: 54px; align-items: center; }
.insight-demo {
  background: var(--card); border: 1px solid var(--line); border-radius: 22px; padding: 28px;
  box-shadow: 0 30px 70px rgba(0,0,0,.45);
}
.insight-demo .head { display: flex; align-items: center; gap: 9px; font-weight: 600; margin-bottom: 18px; }
.insight-demo .head svg { color: var(--violet); }
.insight-line { display: flex; gap: 12px; margin-bottom: 14px; font-size: 14.5px; color: var(--txt-2); }
.insight-line b { color: var(--txt); font-weight: 500; }
.n {
  flex: none; width: 21px; height: 21px; border-radius: 50%; background: var(--indigo);
  color: #fff; font-size: 12px; display: grid; place-items: center; margin-top: 2px;
}
.advice { border-left: 3px solid var(--indigo); border-radius: 2px; padding: 4px 0 4px 14px; margin-top: 18px; font-size: 14.5px; color: var(--txt); }
.disclaimer { color: var(--txt-3); font-size: 12px; margin-top: 16px; }

/* 隐私宣言 */
.privacy-hero { text-align: center; }
.privacy-hero h2 { margin-bottom: 18px; }
.privacy-hero .lead { margin: 0 auto 40px; }
.pill-row { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.pill {
  border: 1px solid var(--line); border-radius: 999px; padding: 10px 22px;
  color: var(--txt-2); font-size: 14px; background: rgba(255,255,255,.02);
}

/* 定价 */
.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; max-width: 760px; margin: 0 auto; }
.plan { background: var(--card); border: 1px solid var(--line); border-radius: 24px; padding: 34px 30px; position: relative; }
.plan.pro { border-color: rgba(94,92,230,.55); box-shadow: 0 0 60px rgba(94,92,230,.16); }
.badge {
  position: absolute; top: -13px; right: 24px;
  background: linear-gradient(120deg, var(--indigo), var(--violet));
  font-size: 12px; font-weight: 600; padding: 5px 14px; border-radius: 999px;
}
.plan .name { font-size: 14px; letter-spacing: .16em; color: var(--txt-3); text-transform: uppercase; margin-bottom: 10px; }
.plan .price { font-family: var(--serif); font-size: 34px; margin-bottom: 20px; }
.plan .price small { font-size: 15px; color: var(--txt-3); font-family: var(--sans); }
.plan ul { list-style: none; }
.plan li { padding: 7px 0; color: var(--txt-2); font-size: 14.5px; display: flex; gap: 10px; }
.plan li::before { content: "·"; color: var(--violet); font-weight: 700; }

/* 页脚 */
footer { border-top: 1px solid var(--line); margin-top: 40px; }
.foot-inner {
  max-width: 1080px; margin: 0 auto; padding: 44px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap;
}
.foot-inner .links { display: flex; gap: 24px; }
.foot-inner a { color: var(--txt-2); text-decoration: none; font-size: 13.5px; }
.foot-inner a:hover { color: var(--txt); }
.foot-inner .copy { color: var(--txt-3); font-size: 12.5px; }

/* 法务页 */
.legal { max-width: 780px; margin: 0 auto; padding: 40px 24px 90px; }
.legal h1 { font-family: var(--serif); font-weight: 500; font-size: 34px; margin-bottom: 8px; }
.legal .meta { color: var(--txt-3); font-size: 13px; margin-bottom: 40px; }
.legal h2 { font-size: 19px; margin: 34px 0 10px; }
.legal p, .legal li { color: var(--txt-2); font-size: 15px; }
.legal ul { padding-left: 20px; }
.legal hr { border: none; border-top: 1px solid var(--line); margin: 52px 0; }
.legal strong { color: var(--txt); }

/* 渐显 */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s ease, transform .8s ease; }
.reveal.in { opacity: 1; transform: none; }

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; padding-top: 30px; }
  .phone-col { order: -1; }
  .phone { transform: rotate(0); width: 240px; }
  .phone.back { display: none; }
  .ring-wrap { width: 220px; height: 220px; margin: 0 auto 36px; }
  .ring-core .score { font-size: 46px; }
  .trio, .report-split, .plans { grid-template-columns: 1fr; }
}