:root {
  --ink: #102447;
  --muted: #65748b;
  --line: #dbe6f1;
  --paper: #f5f9ff;
  --white: #fff;
  --cyan: #17cde8;
  --blue: #1688f7;
  --violet: #7358ff;
  --gradient: linear-gradient(115deg, var(--cyan), var(--blue) 50%, var(--violet));
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 13% 14%, rgba(23,205,232,.15), transparent 28%),
    radial-gradient(circle at 88% 8%, rgba(115,88,255,.12), transparent 30%),
    var(--paper);
  font-family: "SF Pro Display", "Avenir Next", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 4px; }
.plans-header { display: flex; width: min(1180px, calc(100% - 48px)); min-height: 84px; align-items: center; justify-content: space-between; margin: 14px auto 0; padding: 0 22px; border: 1px solid rgba(255,255,255,.9); border-radius: 22px; background: rgba(255,255,255,.72); box-shadow: 0 18px 50px rgba(43,76,123,.07); backdrop-filter: blur(20px); }
.brand { display: flex; align-items: center; gap: 12px; font-size: 18px; }
.brand > span { display: grid; width: 42px; height: 42px; place-items: center; border-radius: 13px; background: var(--white); box-shadow: 0 9px 24px rgba(46,80,128,.12); }
.brand img { width: 33px; height: 33px; object-fit: contain; }
.plans-header nav { display: flex; align-items: center; gap: 30px; font-size: 13px; font-weight: 650; }
.store-link { padding: 11px 18px; color: var(--white); border-radius: 999px; background: var(--gradient); }
.plans-main { width: min(1180px, calc(100% - 48px)); padding: 80px 0 90px; margin: auto; }
.plans-intro { display: grid; grid-template-columns: 1fr .55fr; align-items: end; gap: 40px; margin-bottom: 50px; }
.plans-intro > p { grid-column: 1 / -1; margin: 0 0 -24px; color: var(--blue); font-size: 12px; font-weight: 760; letter-spacing: .2em; }
.plans-intro h1 { margin: 0; font-size: clamp(48px, 6vw, 78px); font-weight: 650; letter-spacing: -.065em; line-height: 1.04; }
.plans-intro > span { padding-bottom: 7px; color: var(--muted); font-size: 13px; line-height: 1.8; }
.plans-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 22px; }
.plan-card { position: relative; display: flex; min-height: 520px; flex-direction: column; overflow: hidden; padding: clamp(34px,4vw,54px); border: 1px solid var(--line); border-radius: 24px; background: rgba(255,255,255,.82); box-shadow: 0 30px 80px rgba(39,73,120,.09); }
.plan-card::before { position: absolute; top: -160px; right: -120px; width: 340px; height: 340px; content: ""; border-radius: 50%; background: radial-gradient(circle, rgba(23,205,232,.24), transparent 67%); }
.plan-pro { color: var(--white); border-color: transparent; background: linear-gradient(145deg, #123561, #1e5792 55%, #4d43a5); }
.plan-pro::before { background: radial-gradient(circle, rgba(130,104,255,.7), transparent 68%); }
.plan-label { position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; padding-bottom: 19px; border-bottom: 1px solid var(--line); }
.plan-pro .plan-label { border-color: rgba(255,255,255,.16); }
.plan-label strong { color: var(--blue); font-size: 12px; letter-spacing: .2em; text-transform: uppercase; }
.plan-pro .plan-label strong { color: #68e6f7; }
.plan-label span { color: var(--muted); font-size: 11px; }
.plan-pro .plan-label span { color: rgba(255,255,255,.64); }
.plan-card h2 { margin: 68px 0 0; font-size: clamp(40px,4.4vw,62px); letter-spacing: -.06em; line-height: 1; }
.plan-card > p { margin: 24px 0 0; color: var(--muted); font-size: 14px; }
.plan-pro > p { color: rgba(255,255,255,.72); }
.plan-card ul { display: grid; gap: 12px; padding: 24px 0 0; margin: 24px 0 36px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; list-style: none; }
.plan-pro ul { color: rgba(255,255,255,.72); border-color: rgba(255,255,255,.16); }
.plan-card li::before { margin-right: 10px; color: var(--cyan); content: "•"; }
.plan-card > a { display: flex; min-height: 54px; align-items: center; justify-content: space-between; padding: 0 19px; margin-top: auto; color: var(--white); border-radius: 12px; background: var(--gradient); font-size: 13px; font-weight: 700; }
@media (max-width: 760px) {
  .plans-header, .plans-main { width: calc(100% - 24px); }
  .plans-header { min-height: 70px; padding: 0 14px; border-radius: 18px; }
  .plans-header nav > a:not(.store-link) { display: none; }
  .store-link { padding: 10px 14px; }
  .plans-main { padding: 58px 0 70px; }
  .plans-intro { grid-template-columns: 1fr; gap: 22px; margin-bottom: 34px; }
  .plans-intro > p { margin-bottom: -8px; }
  .plans-intro h1 { font-size: clamp(42px,13vw,62px); }
  .plans-grid { grid-template-columns: 1fr; }
  .plan-card { min-height: 470px; }
}