:root {
  --bg: #040816;
  --bg-soft: #091126;
  --panel: rgba(9, 17, 38, 0.72);
  --panel-strong: rgba(9, 17, 38, 0.92);
  --line: rgba(124, 146, 255, 0.2);
  --text: #eef4ff;
  --muted: #9fb0d8;
  --primary: #5b8cff;
  --secondary: #6ef3ff;
  --accent: #9c6bff;
  --success: #4ade80;
  --shadow: 0 24px 80px rgba(7, 13, 32, 0.55);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 16px;
  --content-width: 1240px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(91, 140, 255, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(110, 243, 255, 0.12), transparent 24%),
    linear-gradient(180deg, #040816 0%, #060d1d 44%, #040712 100%);
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

.site-shell {
  position: relative;
  overflow: hidden;
  min-height: 100vh;
}

.site-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.site-bg__orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(18px);
  opacity: 0.7;
  animation: float 10s ease-in-out infinite;
}

.site-bg__orb--a {
  top: 8%;
  left: -8%;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(91, 140, 255, 0.42) 0%, rgba(91, 140, 255, 0) 68%);
}

.site-bg__orb--b {
  top: 18%;
  right: -6%;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(156, 107, 255, 0.28) 0%, rgba(156, 107, 255, 0) 68%);
  animation-delay: -3s;
}

.site-bg__orb--c {
  bottom: 6%;
  left: 28%;
  width: 440px;
  height: 440px;
  background: radial-gradient(circle, rgba(110, 243, 255, 0.18) 0%, rgba(110, 243, 255, 0) 70%);
  animation-delay: -6s;
}

.site-bg__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(126, 146, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126, 146, 255, 0.08) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 90%);
  opacity: 0.25;
}

.topbar,
.hero,
.section,
.footer {
  position: relative;
  z-index: 1;
  width: min(calc(100% - 40px), var(--content-width));
  margin-inline: auto;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand__logo {
  width: 54px;
  height: 54px;
  filter: drop-shadow(0 10px 24px rgba(91, 140, 255, 0.35));
}

.brand__name {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.brand__sub {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--muted);
}

.nav a {
  position: relative;
  transition: color 0.25s ease;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.nav a:hover {
  color: var(--text);
}

.nav a:hover::after {
  transform: scaleX(1);
}

.topbar__action,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 14px 22px;
  font-weight: 700;
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease,
    border-color 0.25s ease,
    background 0.25s ease;
}

.topbar__action,
.btn--primary {
  color: #fff;
  background: linear-gradient(135deg, #4b7bff 0%, #6a5dff 50%, #16d6ff 100%);
  box-shadow: 0 14px 34px rgba(80, 118, 255, 0.32);
}

.topbar__action:hover,
.btn:hover {
  transform: translateY(-2px);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(360px, 430px);
  gap: 36px;
  align-items: stretch;
  padding: 26px 0 24px;
}

.hero__content {
  padding: 28px 4px 12px;
}

.eyebrow,
.section-heading__tag,
.panel-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(126, 146, 255, 0.2);
  background: rgba(10, 20, 44, 0.55);
  color: #d8e5ff;
  font-size: 13px;
  font-weight: 700;
}

.eyebrow__dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--secondary), var(--primary));
  box-shadow: 0 0 20px rgba(110, 243, 255, 0.6);
}

.hero h1 {
  margin: 22px 0 18px;
  font-size: clamp(42px, 5vw, 68px);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.hero__desc,
.section-heading p,
.service-card p,
.advantage-card p,
.overview-card p,
.timeline-item p,
.cta-card p,
.footer__desc,
.login-note,
.entry-card span,
.wechat-box p {
  color: var(--muted);
  line-height: 1.8;
}

.hero__desc {
  max-width: 720px;
  font-size: 17px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.btn--ghost {
  border-color: rgba(122, 149, 255, 0.24);
  background: rgba(12, 21, 44, 0.46);
  color: var(--text);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03);
}

.btn--ghost:hover {
  border-color: rgba(122, 149, 255, 0.38);
  box-shadow: 0 16px 42px rgba(17, 28, 55, 0.35);
}

.btn--secondary {
  background: linear-gradient(135deg, rgba(15, 165, 233, 0.22), rgba(90, 140, 255, 0.3));
  border-color: rgba(110, 243, 255, 0.22);
  color: var(--text);
}

.btn--block {
  width: 100%;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 34px;
}

.stat-card,
.service-card,
.advantage-card,
.overview-card,
.timeline-card,
.cta-card,
.login-panel,
.entry-card {
  position: relative;
  border: 1px solid rgba(125, 146, 255, 0.16);
  background: linear-gradient(180deg, rgba(13, 22, 46, 0.8), rgba(8, 15, 33, 0.9));
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.stat-card {
  padding: 22px;
  border-radius: 20px;
}

.stat-card__value {
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 10px;
}

.stat-card__label {
  color: var(--muted);
  font-size: 14px;
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.hero__consult {
  margin-top: 26px;
  max-width: 420px;
}

.hero__badges span {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(12, 20, 41, 0.7);
  border: 1px solid rgba(125, 146, 255, 0.16);
  color: #d6e3ff;
  font-size: 14px;
}

.login-panel {
  border-radius: var(--radius-xl);
  padding: 24px;
  overflow: hidden;
}

.login-panel__shine {
  position: absolute;
  inset: -30% auto auto -25%;
  width: 210px;
  height: 210px;
  background: radial-gradient(circle, rgba(110, 243, 255, 0.32) 0%, rgba(110, 243, 255, 0) 68%);
  pointer-events: none;
}

.login-panel__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.login-panel__header h2 {
  margin: 10px 0 0;
  font-size: 28px;
}

.login-panel__header a,
.login-card__meta a {
  color: #93b5ff;
  font-size: 14px;
}

.login-tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
}

.login-tabs__item {
  flex: 1;
  border: 1px solid rgba(122, 149, 255, 0.18);
  border-radius: 14px;
  background: rgba(12, 21, 44, 0.55);
  color: var(--muted);
  padding: 12px 14px;
  cursor: pointer;
  transition: all 0.25s ease;
}

.login-tabs__item.is-active {
  color: var(--text);
  background: linear-gradient(135deg, rgba(91, 140, 255, 0.25), rgba(110, 243, 255, 0.14));
  border-color: rgba(122, 149, 255, 0.3);
}

.login-card {
  display: none;
  border-radius: 18px;
  padding: 18px;
  border: 1px solid rgba(122, 149, 255, 0.16);
  background: rgba(10, 18, 38, 0.78);
}

.login-card.is-active {
  display: block;
}

.login-form {
  display: grid;
  gap: 14px;
}

.field {
  display: grid;
  gap: 8px;
}

.field span {
  color: #dbe7ff;
  font-size: 14px;
  font-weight: 700;
}

.field input {
  width: 100%;
  border: 1px solid rgba(127, 147, 255, 0.18);
  border-radius: 14px;
  padding: 14px 16px;
  color: var(--text);
  background: rgba(6, 12, 27, 0.88);
  outline: none;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.field input:focus {
  border-color: rgba(110, 243, 255, 0.5);
  box-shadow: 0 0 0 4px rgba(91, 140, 255, 0.14);
}

.login-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 16px;
}

.login-note {
  margin: 14px 0 0;
  font-size: 13px;
}

.wechat-box {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 18px;
}

.wechat-box__icon {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(74, 222, 128, 0.22), rgba(91, 140, 255, 0.18));
  font-size: 18px;
  font-weight: 800;
  color: #dffff0;
}

.wechat-box h3 {
  margin: 0 0 8px;
  font-size: 20px;
}

.entry-points {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.qrcode-card {
  border-radius: 20px;
  padding: 18px;
  border: 1px solid rgba(122, 149, 255, 0.16);
  background: rgba(10, 18, 38, 0.78);
}

.qrcode-card__header h3 {
  margin: 0 0 8px;
  font-size: 20px;
}

.qrcode-card__header p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.qrcode-card__body {
  display: grid;
  justify-items: center;
  gap: 14px;
  margin-top: 18px;
  margin-bottom: 18px;
}

.qrcode-card__frame {
  padding: 12px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(236, 243, 255, 0.96));
  box-shadow: 0 16px 40px rgba(8, 15, 33, 0.34);
}

.qrcode-card__image {
  display: block;
  width: 200px;
  max-width: 100%;
  height: auto;
  border-radius: 12px;
}

.qrcode-card__tips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.qrcode-card__tips span {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(12, 20, 41, 0.7);
  border: 1px solid rgba(125, 146, 255, 0.16);
  color: #d6e3ff;
  font-size: 13px;
}

.entry-card {
  display: grid;
  gap: 8px;
  border-radius: 18px;
  padding: 16px 18px;
}

.entry-card strong {
  font-size: 16px;
}

.section {
  padding: 84px 0 20px;
}

.section-heading {
  max-width: 820px;
  margin-bottom: 30px;
}

.section-heading h2,
.cta-card h2 {
  margin: 14px 0 12px;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.16;
}

.service-grid,
.advantage-grid,
.culture-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.service-card,
.advantage-card,
.culture-card {
  border-radius: 24px;
  padding: 24px;
  min-height: 220px;
}

.service-card__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 54px;
  height: 32px;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(91, 140, 255, 0.22), rgba(156, 107, 255, 0.28));
  color: #dce7ff;
  font-size: 13px;
  font-weight: 800;
}

.service-card h3,
.advantage-card h3,
.culture-card h3,
.overview-card h3 {
  margin: 18px 0 12px;
  font-size: 24px;
}

.culture-card {
  background:
    radial-gradient(circle at top right, rgba(110, 243, 255, 0.12), transparent 34%),
    linear-gradient(180deg, rgba(13, 22, 46, 0.82), rgba(8, 15, 33, 0.92));
}

.culture-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 54px;
  height: 32px;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(110, 243, 255, 0.18), rgba(91, 140, 255, 0.32));
  color: #e7f8ff;
  font-size: 13px;
  font-weight: 800;
}

.section--split .split-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 20px;
}

.overview-card,
.timeline-card {
  border-radius: 24px;
  padding: 28px;
}

.feature-list {
  margin: 18px 0 0;
  padding-left: 18px;
  color: #d9e5ff;
  line-height: 1.9;
}

.timeline-card {
  display: grid;
  gap: 22px;
}

.timeline-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.timeline-item__point {
  width: 14px;
  height: 14px;
  margin-top: 7px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--secondary), var(--primary));
  box-shadow: 0 0 24px rgba(110, 243, 255, 0.65);
  flex-shrink: 0;
}

.timeline-item h4 {
  margin: 0 0 8px;
  font-size: 20px;
}

.section--cta {
  padding-bottom: 32px;
}

.cta-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  border-radius: 28px;
  padding: 34px;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 30px 0 42px;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer__logo {
  width: 46px;
  height: 46px;
}

.footer__title {
  font-size: 20px;
  font-weight: 800;
}

.footer__info {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 16px;
  color: var(--muted);
}

.footer__info a {
  color: #bcd2ff;
}

@keyframes float {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(0, 18px, 0);
  }
}

@media (max-width: 1120px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .service-grid,
  .advantage-grid,
  .culture-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .section--split .split-layout,
  .cta-card,
  .footer {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: stretch;
  }

  .footer__info {
    justify-content: flex-start;
  }
}

@media (max-width: 760px) {
  .topbar {
    flex-wrap: wrap;
  }

  .nav {
    order: 3;
    width: 100%;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
  }

  .hero h1 {
    font-size: 38px;
  }

  .hero__stats,
  .service-grid,
  .advantage-grid,
  .culture-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding-top: 60px;
  }

  .site-shell {
    padding-bottom: 20px;
  }

  .topbar,
  .hero,
  .section,
  .footer {
    width: min(calc(100% - 24px), var(--content-width));
  }

  .login-panel,
  .cta-card,
  .service-card,
  .advantage-card,
  .overview-card,
  .timeline-card {
    border-radius: 20px;
  }

  .login-card__meta {
    flex-direction: column;
    align-items: flex-start;
  }
}