.lanyi-portal { margin: 0; color: #17243e; background: #f8faff; font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif; -webkit-font-smoothing: antialiased; }
.lanyi-portal * { box-sizing: border-box; }
.lanyi-portal a { color: inherit; text-decoration: none; }
.lanyi-portal a:focus-visible { outline: 3px solid #245bee; outline-offset: 6px; }
.lanyi-shell { width: min(1160px, calc(100% - 96px)); margin: 0 auto; }
.lanyi-skip { position: fixed; left: 16px; top: -80px; z-index: 10; padding: 12px 20px; background: white; border: 1px solid #245bee; border-radius: 8px; }
.lanyi-skip:focus { top: 16px; }
.lanyi-header { min-height: 112px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.lanyi-brand { display: flex; gap: 12px; align-items: center; font-size: 23px; font-weight: 700; letter-spacing: .04em; }
.lanyi-brand-detail { display: block; margin-top: 2px; color: #748198; font-size: 11px; font-weight: 400; letter-spacing: .13em; }
.lanyi-header-login { padding: 11px 17px; background: white; border: 1px solid #e1e7f1; border-radius: 9px; font-size: 13px; }
.lanyi-header-login span { margin-left: 14px; color: #245bee; }
.lanyi-main { min-height: 512px; display: grid; grid-template-columns: 1.15fr 1fr; align-items: center; gap: 24px; padding: 44px 0 68px; }
.lanyi-eyebrow { display: flex; align-items: center; gap: 10px; color: #587294; font-size: 11px; font-weight: 600; letter-spacing: .17em; }
.lanyi-eyebrow span { width: 7px; height: 7px; border-radius: 50%; background: #245bee; box-shadow: 0 0 0 4px #e8eeff; }
.lanyi-intro h1 { margin: 26px 0 24px; font-size: clamp(32px, 4.4vw, 56px); line-height: 1.35; letter-spacing: -.045em; font-weight: 750; }
.lanyi-intro h1 span { color: #245bee; }
.lanyi-description { margin: 0; color: #738099; font-size: 15px; line-height: 1.95; }
.lanyi-primary { display: inline-flex; align-items: center; gap: 32px; margin-top: 32px; padding: 16px 23px; background: #245bee; color: white !important; border-radius: 10px; font-size: 14px; font-weight: 600; box-shadow: 0 10px 24px #245bee24; transition: background .15s, transform .15s; }
.lanyi-primary:hover { background: #184bce; transform: translateY(-2px); }
.lanyi-primary span { font-size: 21px; line-height: 1; }
.lanyi-access-note { display: flex; align-items: center; gap: 7px; margin: 17px 0 0; color: #8a97ac; font-size: 11px; }
.lanyi-art { width: 100%; height: 400px; position: relative; overflow: hidden; background: radial-gradient(ellipse at center, #dde9ff90, transparent 68%); }
.lanyi-art-grid { position: absolute; inset: 26px; background-image: linear-gradient(#dce6f960 1px, transparent 1px), linear-gradient(90deg, #dce6f960 1px, transparent 1px); background-size: 32px 32px; mask-image: radial-gradient(ellipse, black 22%, transparent 72%); }
.lanyi-art-orbit { position: absolute; left: 50%; top: 50%; border: 1px solid #bdcef4; border-radius: 50%; transform: translate(-50%, -50%) rotate(-25deg); }
.lanyi-art-orbit-one { width: 350px; height: 210px; }
.lanyi-art-orbit-two { width: 230px; height: 330px; border-style: dashed; border-color: #c6d7f6; transform: translate(-50%, -50%) rotate(32deg); }
.lanyi-art-core { position: absolute; top: 50%; left: 50%; width: 132px; height: 132px; transform: translate(-50%, -50%) rotate(-6deg); border: 1px solid #fff; border-radius: 30px; background: linear-gradient(145deg, #fff, #e5efff); box-shadow: 0 18px 42px #315cae1a, inset 0 0 0 7px #ffffff70; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 13px; }
.lanyi-art-core > span:first-child { color: #245bee; font-size: 58px; line-height: 1; }
.lanyi-art-core-label { font-size: 7px; letter-spacing: .2em; color: #6482b0; }
.lanyi-art-node { position: absolute; display: flex; align-items: center; gap: 11px; background: #ffffffee; border: 1px solid #e5ecf9; border-radius: 13px; box-shadow: 0 12px 30px #234c9920; padding: 16px 23px 16px 16px; color: #4d6284; font-size: 12px; }
.lanyi-art-node-icon { display: grid; place-items: center; width: 28px; height: 28px; background: #edf3ff; color: #245bee; border-radius: 8px; font-size: 16px; font-weight: 600; }
.lanyi-art-node-one { top: 62px; left: 17%; transform: rotate(-5deg); }
.lanyi-art-node-two { top: 165px; right: 3%; transform: rotate(5deg); }
.lanyi-art-node-three { bottom: 49px; left: 14%; transform: rotate(-3deg); }
.lanyi-art-point { width: 8px; height: 8px; position: absolute; border: 2px solid white; border-radius: 50%; background: #6796f3; box-shadow: 0 0 0 5px #d8e6ff; }
.lanyi-art-point-one { right: 25%; top: 64px; }
.lanyi-art-point-two { right: 23%; bottom: 65px; background: #79baa9; box-shadow: 0 0 0 5px #e1f0ec; }
.lanyi-principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; padding: 30px 0 36px; border-top: 1px solid #e1e8f4; }
.lanyi-principle-number { font-size: 10px; color: #7f95b8; letter-spacing: .12em; }
.lanyi-principles h2 { font-size: 15px; font-weight: 600; margin: 12px 0 9px; }
.lanyi-principles p { color: #8491a5; font-size: 12px; line-height: 1.8; margin: 0; }
.lanyi-footer { display: flex; justify-content: space-between; gap: 24px; padding: 28px 0 24px; color: #9ca6b6; font-size: 10px; }
@media (max-width: 850px) {
  .lanyi-shell { width: calc(100% - 56px); }
  .lanyi-main { grid-template-columns: 1fr 1fr; padding-top: 36px; gap: 0; }
  .lanyi-art { transform: scale(.85); transform-origin: center; }
  .lanyi-art-node-two { right: 0; }
}
@media (max-width: 600px) {
  .lanyi-shell { width: calc(100% - 40px); }
  .lanyi-header { min-height: 88px; }
  .lanyi-brand { font-size: 20px; }
  .lanyi-brand img { width: 35px; height: 35px; }
  .lanyi-header-login { font-size: 12px; padding: 10px 12px; }
  .lanyi-header-login span { margin-left: 6px; }
  .lanyi-main { display: block; min-height: 0; padding: 35px 0 24px; }
  .lanyi-intro h1 { font-size: 38px; }
  .lanyi-description { font-size: 13px; }
  .lanyi-art { height: 310px; max-width: 420px; margin: 10px auto 0; transform: none; }
  .lanyi-art-orbit-one { width: 300px; height: 185px; }
  .lanyi-art-orbit-two { width: 195px; height: 260px; }
  .lanyi-art-core { width: 112px; height: 112px; }
  .lanyi-art-node { padding: 12px 18px 12px 12px; }
  .lanyi-art-node-one { top: 28px; left: 10%; }
  .lanyi-art-node-two { top: 122px; right: 0; }
  .lanyi-art-node-three { bottom: 20px; left: 10%; }
  .lanyi-art-point-one { top: 24px; }
  .lanyi-art-point-two { bottom: 30px; }
  .lanyi-principles { grid-template-columns: 1fr; gap: 24px; padding: 24px 0; }
  .lanyi-principles > div { display: grid; grid-template-columns: 30px 1fr; column-gap: 10px; }
  .lanyi-principle-number { padding-top: 3px; grid-row: 1 / 3; }
  .lanyi-principles h2 { margin: 0 0 6px; }
  .lanyi-footer { flex-direction: column; gap: 10px; padding-top: 16px; }
}
@media (prefers-reduced-motion: reduce) { .lanyi-primary { transition: none; } }