:root {
  --ink: #152035;
  --ink-2: #435169;
  --muted: #748299;
  --line: #dfe6f0;
  --blue: #2f6fed;
  --blue-soft: #edf3ff;
  --navy: #10213c;
  --teal: #0d9b83;
  --teal-soft: #eaf8f4;
  --amber: #b87516;
  --amber-soft: #fff4df;
  --page: #f4f7fb;
  --card: #ffffff;
  --danger: #b8323e;
  --shadow: 0 18px 50px rgba(20, 38, 70, .09);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 0%, rgba(76, 135, 245, .13), transparent 26rem),
    var(--page);
  font: 15px/1.75 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
button, input, select, textarea { font: inherit; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(21, 32, 53, .08);
  background: rgba(249, 251, 254, .93);
  backdrop-filter: blur(14px);
}

.topbar-inner,
.container {
  width: min(1040px, calc(100% - 32px));
  margin: 0 auto;
}

.topbar-inner {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  color: #fff;
  background: linear-gradient(135deg, #76a9ff, #2f6fed);
  box-shadow: 0 9px 22px rgba(47, 111, 237, .25);
  font-weight: 900;
}

.brand b { display: block; font-size: 17px; line-height: 1.15; }
.brand small { display: block; color: var(--muted); font-size: 10px; }
.topnav { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; font-size: 13px; }
.topnav a { color: var(--ink-2); text-decoration: none; }
.topnav a.active { color: var(--blue); font-weight: 800; }

main { padding: 54px 0 76px; }

.hero {
  padding: 38px 40px;
  border-radius: 26px;
  color: #fff;
  background:
    radial-gradient(circle at 90% 0%, rgba(106, 164, 255, .35), transparent 22rem),
    linear-gradient(135deg, #17345f, #0d1e38);
  box-shadow: var(--shadow);
}

.hero .eyebrow {
  color: #a9c9ff;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 1.5px;
}

.hero h1 {
  margin: 12px 0 10px;
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.16;
  letter-spacing: -1.5px;
}

.hero p { max-width: 760px; margin: 0; color: #c7d5e7; }
.hero-meta { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }
.hero-meta span {
  padding: 5px 9px;
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 999px;
  color: #dbe8f8;
  background: rgba(255, 255, 255, .07);
  font-size: 11px;
}

.layout {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 22px;
  margin-top: 24px;
  align-items: start;
}

.toc {
  position: sticky;
  top: 88px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, .9);
}

.toc b { display: block; margin-bottom: 8px; font-size: 13px; }
.toc a { display: block; padding: 5px 0; color: var(--ink-2); font-size: 12px; text-decoration: none; }
.toc a:hover { color: var(--blue); }

.document {
  padding: 34px 38px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--card);
  box-shadow: 0 12px 36px rgba(20, 38, 70, .06);
}

.document h2 {
  margin: 34px 0 10px;
  padding-top: 4px;
  font-size: 21px;
  line-height: 1.35;
}

.document h2:first-child { margin-top: 0; }
.document h3 { margin: 22px 0 7px; font-size: 16px; }
.document p { margin: 0 0 10px; color: var(--ink-2); }
.document ul, .document ol { margin: 8px 0 14px; padding-left: 24px; color: var(--ink-2); }
.document li { margin: 4px 0; }
.document strong { color: var(--ink); }

.notice {
  margin: 14px 0 18px;
  padding: 15px 17px;
  border-radius: 13px;
  color: #65430c;
  background: var(--amber-soft);
}

.info {
  margin: 14px 0 18px;
  padding: 15px 17px;
  border-radius: 13px;
  color: #25539c;
  background: var(--blue-soft);
}

.meta {
  display: flex;
  gap: 12px 24px;
  flex-wrap: wrap;
  margin-top: 18px;
  color: var(--muted);
  font-size: 12px;
}

.form-card {
  margin-top: 24px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #fff;
  box-shadow: var(--shadow);
}

.form-card h2 { margin: 0 0 8px; font-size: 24px; }
.form-card > p { margin: 0 0 20px; color: var(--muted); }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 15px; }
.field { display: grid; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13px; font-weight: 700; }
.field input, .field select, .field textarea {
  width: 100%;
  border: 1px solid #d5deea;
  border-radius: 11px;
  padding: 11px 12px;
  color: var(--ink);
  background: #fff;
}
.field textarea { min-height: 92px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 2px solid rgba(47, 111, 237, .18);
  border-color: var(--blue);
}

.consent-list {
  display: grid;
  gap: 9px;
  margin: 18px 0;
}

.check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 11px 12px;
  border: 1px solid #e2e8f1;
  border-radius: 11px;
  color: var(--ink-2);
  background: #fafbfd;
  font-size: 13px;
}

.check input { width: 16px; height: 16px; margin-top: 3px; flex: 0 0 auto; }
.actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-top: 20px; }

.btn {
  min-height: 44px;
  padding: 0 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #d6dfec;
  border-radius: 12px;
  color: var(--ink);
  background: #fff;
  font-weight: 800;
  cursor: pointer;
  text-decoration: none;
}

.btn:hover { border-color: #b9c8dd; text-decoration: none; }
.btn-primary { color: #fff; border-color: var(--blue); background: var(--blue); }
.btn-danger { color: var(--danger); border-color: #f0c7cc; background: #fff8f8; }
.btn:disabled { opacity: .55; cursor: wait; }
.status { min-height: 24px; margin-top: 14px; font-size: 13px; color: var(--muted); }
.status.ok { color: #087b68; }
.status.error { color: var(--danger); }
.steps { counter-reset: step; display: grid; gap: 10px; margin: 18px 0; }
.step {
  position: relative;
  min-height: 54px;
  padding: 12px 14px 12px 58px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: #fafcff;
  color: var(--ink-2);
  font-size: 13px;
}
.step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 14px;
  top: 12px;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  color: var(--blue);
  background: var(--blue-soft);
  font-weight: 900;
}

.footer {
  padding: 24px 0 34px;
  color: var(--muted);
  font-size: 12px;
}
.footer-inner { display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; }
.footer-links { display: flex; gap: 14px; flex-wrap: wrap; }
.footer a { color: var(--muted); text-decoration: none; }

@media (max-width: 820px) {
  .layout { grid-template-columns: 1fr; }
  .toc { position: static; display: none; }
  .hero { padding: 28px 22px; }
  .document, .form-card { padding: 24px 20px; }
  .form-grid { grid-template-columns: 1fr; }
  .topnav { display: none; }
}

@media (max-width: 520px) {
  main { padding-top: 28px; }
  .container, .topbar-inner { width: min(100% - 22px, 1040px); }
  .hero h1 { font-size: 31px; }
  .footer-inner { flex-direction: column; }
}