:root {
  --ink: #101b39;
  --muted: #687493;
  --blue: #2762ed;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: #f5f8ff;
  color: var(--ink);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Roboto", "Noto Sans SC",
    "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

.page-shell {
  min-height: 100vh;
  overflow: hidden;
  position: relative;
  background:
    radial-gradient(circle at 15% 4%, rgba(86, 132, 255, 0.16), transparent 27rem),
    radial-gradient(circle at 95% 16%, rgba(21, 196, 224, 0.15), transparent 24rem),
    linear-gradient(180deg, #f7faff 0%, #f8faff 50%, #eef4ff 100%);
}

.ambient {
  position: absolute;
  border-radius: 999px;
  filter: blur(2px);
  pointer-events: none;
}

.ambient-one {
  top: 110px;
  left: calc(50% + 270px);
  width: 300px;
  height: 300px;
  border: 1px solid rgba(61, 112, 237, 0.16);
}

.ambient-two {
  top: 510px;
  right: calc(50% + 220px);
  width: 220px;
  height: 220px;
  background: rgba(49, 127, 255, 0.06);
}

.content {
  position: relative;
  z-index: 1;
  width: min(100%, 760px);
  margin: 0 auto;
  padding: 36px 28px 44px;
}

.page-heading {
  margin: 0 0 14px;
  padding-left: 4px;
  display: flex;
  align-items: center;
  gap: 13px;
}

.guide-icon {
  flex: 0 0 64px;
  width: 64px;
  height: 64px;
  display: block;
  object-fit: contain;
  filter: drop-shadow(0 9px 18px rgba(39, 98, 237, 0.14));
}

.page-kicker {
  margin: 0;
  color: var(--blue);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.025em;
}

.hero {
  padding: 58px 54px 50px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 36px;
  text-align: center;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(250, 253, 255, 0.84));
  box-shadow: 0 24px 70px rgba(57, 86, 151, 0.13);
  backdrop-filter: blur(18px);
}

.hero h1 {
  margin: 0;
  font-size: clamp(30px, 6.4vw, 44px);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.hero h1 span {
  color: var(--blue);
}

.hero-steps {
  max-width: 560px;
  margin: 26px auto 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.hero-steps li {
  min-width: 0;
  display: grid;
  justify-items: center;
  gap: 9px;
}

.hero-steps span {
  width: 30px;
  height: 30px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  color: #fff;
  background: linear-gradient(145deg, #416ff0, #269be8);
  font-size: 14px;
  font-weight: 800;
  line-height: 1;
  box-shadow: 0 8px 18px rgba(42, 105, 227, 0.18);
}

.hero-steps p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.55;
  letter-spacing: 0.005em;
}

.notice {
  margin-top: 22px;
  padding: 21px 23px;
  border: 1px solid #ffe3bd;
  border-radius: 22px;
  display: flex;
  gap: 16px;
  background: #fffaf2;
}

.notice-icon {
  flex: 0 0 34px;
  width: 34px;
  height: 34px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  color: #bd7022;
  background: #ffead0;
  font-size: 18px;
  font-weight: 900;
}

.notice h2 {
  margin: 0 0 7px;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.55;
}

.notice p {
  margin: 0;
  color: #7b6c59;
  font-size: 14px;
  line-height: 1.82;
}

.register-cta-wrap {
  margin-top: 20px;
  display: flex;
  justify-content: center;
}

.register-cta {
  min-height: 54px;
  width: min(100%, 330px);
  padding: 0 20px 0 24px;
  border-radius: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  color: #fff;
  background: linear-gradient(135deg, #356cf0, #20a9e5);
  box-shadow: 0 14px 30px rgba(42, 105, 227, 0.24);
  font-size: 16px;
  font-weight: 720;
  line-height: 1;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.register-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 17px 34px rgba(42, 105, 227, 0.3);
}

.register-cta:active {
  transform: translateY(0);
}

.register-cta:focus-visible {
  outline: 3px solid rgba(39, 98, 237, 0.28);
  outline-offset: 4px;
}

.register-cta-arrow {
  font-size: 21px;
  font-weight: 500;
  line-height: 1;
}

@media (max-width: 680px) {
  .content {
    padding: 24px 18px 36px;
  }

  .page-heading {
    margin-bottom: 13px;
    padding-left: 2px;
    gap: 11px;
  }

  .guide-icon {
    flex-basis: 58px;
    width: 58px;
    height: 58px;
  }

  .page-kicker {
    font-size: 14px;
  }

  .hero {
    min-height: 430px;
    padding: 38px 24px 36px;
    border-radius: 28px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .hero h1 {
    font-size: 30px;
    line-height: 1.3;
    letter-spacing: -0.035em;
  }

  .hero-steps {
    width: 100%;
    margin-top: 26px;
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .hero-steps li {
    grid-template-columns: 34px minmax(0, 1fr);
    align-items: center;
    justify-items: stretch;
    gap: 12px;
    padding: 11px 13px;
    border: 1px solid rgba(225, 233, 249, 0.9);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.68);
  }

  .hero-steps span {
    width: 34px;
    height: 34px;
    font-size: 14px;
  }

  .hero-steps p {
    text-align: left;
    font-size: 14.5px;
    line-height: 1.55;
  }

  .notice {
    margin-top: 16px;
    padding: 18px 17px;
    gap: 14px;
    border-radius: 19px;
  }

  .notice h2 {
    font-size: 15.5px;
    line-height: 1.5;
  }

  .notice p {
    font-size: 14px;
    line-height: 1.82;
  }

  .register-cta-wrap {
    margin-top: 17px;
  }

  .register-cta {
    min-height: 56px;
    width: 100%;
    border-radius: 18px;
    font-size: 16px;
  }
}