:root {
  --ink: rgba(0, 0, 0, 0.88);
  --mute: rgba(0, 0, 0, 0.55);
  --faint: rgba(0, 0, 0, 0.45);
  --paper: #f5f7fa;
  --white: #fff;
  --blue: #1677ff;
  --blue-deep: #0958d9;
  --blue-soft: #e6f4ff;
  --gold: #f5b000;
  --line: #f0f0f0;
  --green: var(--blue);
  --green-deep: var(--blue-deep);
  --amber: var(--blue);
  --max: 1120px;
  --shadow: 0 6px 16px rgba(0, 0, 0, 0.06);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
h1, h2, h3 {
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin: 0;
  color: rgba(0, 0, 0, 0.88);
}
h1 { font-size: clamp(2rem, 3.4vw, 2.75rem); }
h2 { font-size: clamp(1.5rem, 2.2vw, 1.85rem); }
h3 { font-size: 1.05rem; line-height: 1.4; }
p { margin: 0 0 0.85em; }
.wrap { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.kicker {
  display: inline-block;
  margin: 0 0 16px;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--blue-soft);
  color: var(--blue);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
}
.lede { font-size: 15px; max-width: 36rem; color: var(--mute); }
.mute { color: var(--mute); }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 40;
  height: 64px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 64px;
  gap: 16px;
}
.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.03em;
  font-size: 1.25rem;
}
.wordmark { color: var(--blue); }
.wordmark i { font-style: normal; color: var(--gold); }
.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  text-decoration: none;
  font-size: 14px;
  color: rgba(0, 0, 0, 0.65);
}
.nav-links a.active, .nav-links a:hover { color: var(--blue); }
.nav-right { justify-self: end; display: flex; align-items: center; gap: 12px; }
.nav-cta {
  display: inline-flex;
  align-items: center;
  height: 32px;
  padding: 0 14px;
  border-radius: 6px;
  background: var(--blue);
  color: #fff;
  text-decoration: none;
  font-size: 14px;
}
.nav-cta:hover { background: var(--blue-deep); }
.menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
}
.menu-btn i, .menu-btn i::before, .menu-btn i::after {
  display: block;
  width: 16px;
  height: 1.5px;
  background: currentColor;
  position: relative;
}
.menu-btn i::before, .menu-btn i::after { content: ""; position: absolute; left: 0; }
.menu-btn i::before { top: -5px; }
.menu-btn i::after { top: 5px; }

.hero {
  background:
    radial-gradient(ellipse at 100% 0%, #e6f4ff 0%, rgba(230, 244, 255, 0) 55%),
    #fff;
  color: var(--ink);
  padding: 88px 0 8px;
}
.banner {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 520px;
  margin-top: 64px;
  overflow: hidden;
  color: #fff;
  background: #10243f;
}
.banner img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center 30%;
}
.banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 18, 36, 0.05) 20%, rgba(8, 18, 36, 0.72) 100%);
}
.banner-copy {
  position: relative;
  z-index: 1;
  padding: 64px 0 48px;
}
.banner .kicker { background: rgba(255, 255, 255, 0.18); color: #fff; }
.banner h1 { color: #fff; }
.banner-copy p { max-width: 28rem; color: rgba(255, 255, 255, 0.88); }
.hero-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: center;
}
.hero-photos {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  grid-template-rows: 1fr 1fr;
  gap: 10px;
  min-height: 400px;
}
.hero-photos figure { margin: 0; border-radius: 8px; overflow: hidden; }
.hero-photos .tall { grid-row: 1 / span 2; }
.hero-photos img { width: 100%; height: 100%; object-fit: cover; }
.ico {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin-bottom: 10px;
  border-radius: 8px;
  background: var(--blue-soft);
  color: var(--blue);
  line-height: 0;
  flex: none;
}
.ico svg {
  display: block;
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.reach h2, .oversight h3 { display: flex; align-items: center; gap: 8px; }
.reach .ico, .oversight .ico { width: 28px; height: 28px; margin: 0; }
.reach .ico svg, .oversight .ico svg { width: 15px; height: 15px; }
.hero h1 em { font-style: normal; color: inherit; }
.hero .lede { color: var(--mute); }
.hero-actions { display: flex; gap: 20px; align-items: center; margin-top: 8px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 18px;
  background: var(--blue);
  color: #fff;
  text-decoration: none;
  border-radius: 6px;
  font-weight: 500;
  border: 1px solid var(--blue);
}
.btn:hover { background: var(--blue-deep); border-color: var(--blue-deep); }
.btn.ghost, .btn.ink {
  background: #fff;
  color: var(--ink);
  border-color: #d9d9d9;
}
.btn.ghost:hover, .btn.ink:hover { color: var(--blue); border-color: var(--blue); }
.text-link { color: var(--blue); text-decoration: none; }
.offer-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 20px 22px 8px;
}
.offer-card small {
  display: block;
  font-size: 13px;
  color: var(--blue);
  margin-bottom: 6px;
}
.offer-card strong {
  display: block;
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--blue);
  letter-spacing: -0.03em;
}
.offer-card dl { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 18px; margin: 18px 0 10px; }
.offer-card dt { font-size: 12px; color: var(--faint); }
.offer-card dd { margin: 2px 0 0; font-weight: 500; }
.offer-card p { color: var(--faint); font-size: 13px; }

.facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: transparent;
  border-bottom: 0;
  padding: 8px 0 8px;
}
.facts article { display: flex; flex-direction: column; align-items: flex-start; padding: 22px 20px 22px 0; border-left: 0; }
.facts article + article { padding-left: 20px; border-left: 1px solid var(--line); }
.facts span:not(.ico) {
  display: block;
  font-size: 13px;
  letter-spacing: 0;
  text-transform: none;
  color: var(--faint);
  margin-bottom: 4px;
}
.facts strong { font-size: 1.15rem; font-weight: 600; letter-spacing: 0; }

.section { padding: 72px 0; }
.section.paper { background: var(--paper); }
.head { max-width: 40rem; margin-bottom: 28px; }
.split {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 48px;
  align-items: start;
}
.cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  box-shadow: none;
}
.card b { display: block; margin-bottom: 8px; font-size: 16px; font-weight: 600; }
.card p { color: var(--mute); margin: 0; }

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.step .num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  margin-bottom: 12px;
  border-radius: 50%;
  background: var(--blue-soft);
  color: var(--blue);
  font-size: 13px;
  font-weight: 600;
}
.step b { display: block; margin-bottom: 6px; font-weight: 600; }
.step p { color: var(--mute); margin: 0; font-size: 14px; }

.band {
  background: var(--blue-soft);
  color: var(--ink);
  padding: 56px 0;
}
.band .wrap { display: flex; justify-content: space-between; gap: 32px; align-items: center; }
.band h2, .band p { color: var(--ink); }
.band p { color: var(--mute); max-width: 36rem; margin: 8px 0 0; }
.band a:not(.btn) { color: var(--blue); }

.page-top { padding: 112px 0 8px; }
.page-top.dark { background: transparent; color: var(--ink); padding-bottom: 8px; }
.page-top.dark .lede { color: var(--mute); }

.note {
  border: 1px solid #91caff;
  background: var(--blue-soft);
  border-left: 1px solid #91caff;
  border-radius: 8px;
  padding: 12px 16px;
  color: rgba(0, 0, 0, 0.65);
}
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
table { width: 100%; border-collapse: collapse; min-width: 640px; }
th, td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
th {
  font-size: 13px;
  letter-spacing: 0;
  text-transform: none;
  color: var(--faint);
  font-weight: 500;
  background: #fafafa;
}
tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }

.tiers { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 16px; }
.tiers button {
  border: 1px solid #d9d9d9;
  background: #fff;
  border-radius: 6px;
  padding: 4px 12px;
  height: 32px;
  cursor: pointer;
  color: var(--ink);
}
.tiers button.is-on { background: var(--blue); color: #fff; border-color: var(--blue); }

.pills { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0 0; padding: 0; list-style: none; }
.pills li {
  border: 1px solid #d9d9d9;
  border-radius: 4px;
  padding: 4px 10px;
  font-size: 13px;
  background: #fff;
  color: rgba(0, 0, 0, 0.65);
}

.reg-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.reg {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
}
.reg small { display: block; font-size: 13px; color: var(--faint); letter-spacing: 0; text-transform: none; }
.reg strong {
  display: block;
  margin: 8px 0;
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--blue);
  letter-spacing: 0;
}
.reg p { margin: 0; color: var(--mute); }
.oversight { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.oversight article {
  border-top: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}
.oversight h3 { font-size: 15px; }
.oversight p { margin: 6px 0 0; font-size: 13px; }
.laws { display: flex; flex-wrap: wrap; gap: 8px 16px; }
.laws a { color: var(--blue); text-decoration: none; }
.laws a:hover { text-decoration: underline; }

.reach { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.reach article {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
}
.reach h2 { font-size: 15px; margin-bottom: 8px; color: var(--faint); font-weight: 500; }
.reach a { color: var(--blue); font-weight: 600; text-decoration: none; font-size: 1.25rem; }
.reach p { margin: 6px 0 0; color: var(--mute); }
.blank { font-size: 1.5rem; font-weight: 500; color: var(--faint); }

.doc { padding: 8px 0 72px; }
.doc .wrap { max-width: 760px; }
.doc h2 { font-size: 1.25rem; margin: 1.6em 0 0.45em; }
.doc p { color: rgba(0, 0, 0, 0.75); }
.meta { color: var(--faint); font-size: 13px; }

.site-footer { background: #fafafa; border-top: 1px solid var(--line); padding: 48px 0 28px; }
.foot { display: grid; grid-template-columns: 1.4fr 0.6fr 1fr; gap: 28px; }
.foot a, .foot p, .foot address { display: block; color: var(--mute); text-decoration: none; font-style: normal; margin: 0 0 8px; font-size: 14px; }
.foot a:hover { color: var(--blue); }
.foot-label { font-size: 13px; letter-spacing: 0; text-transform: none; color: rgba(0, 0, 0, 0.88) !important; font-weight: 600; }
.foot-brand .logo { margin-bottom: 10px; }
.foot-email span { font-size: 1.1rem; font-weight: 500; color: var(--faint); }
.legal { margin-top: 28px; padding-top: 16px; border-top: 1px solid var(--line); }
.legal p { color: var(--faint); font-size: 13px; }
.legal a { color: var(--blue); }

@media (max-width: 900px) {
  .menu-btn { display: inline-flex; align-items: center; justify-content: center; }
  .nav { grid-template-columns: 1fr auto; }
  .nav-links {
    display: none;
    position: fixed;
    inset: 64px 0 0;
    background: #fff;
    flex-direction: column;
    padding: 12px 20px 24px;
    gap: 0;
    border-top: 1px solid var(--line);
  }
  .nav-links.open { display: flex; }
  .nav-links a { font-size: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); color: var(--ink); }
  .nav-cta { display: none; }
  .hero-grid, .hero-photos, .split, .facts, .steps, .cards, .reg-grid, .reach, .oversight, .foot, .band .wrap {
    grid-template-columns: 1fr;
  }
  .banner { min-height: 420px; }
  .hero-photos { min-height: 0; grid-template-rows: none; }
  .hero-photos figure, .hero-photos .tall { height: 220px; }
  .facts article, .facts article + article { border-left: 0; padding: 12px 0; border-top: 1px solid var(--line); }
  .facts article:first-child { border-top: 0; }
  .band .wrap { align-items: start; }
  .wrap { width: min(var(--max), calc(100% - 32px)); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}