:root {
  color-scheme: light;
  --ink: #122018;
  --muted: #5f6f65;
  --line: #dbe7de;
  --paper: #ffffff;
  --wash: #f3f8f4;
  --green: #146c3a;
  --green-2: #1f8a4c;
  --blue: #2457d6;
  --navy: #102f4a;
  --amber: #a85b00;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--wash);
  color: var(--ink);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-height: 100vh; background: var(--wash); }
a { color: inherit; }
img { display: block; max-width: 100%; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, .94);
  border-bottom: 1px solid rgba(219, 231, 222, .9);
  backdrop-filter: blur(16px);
}
.nav {
  width: min(1180px, calc(100% - 36px));
  min-height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand-link { display: flex; align-items: center; gap: 11px; text-decoration: none; font-weight: 800; }
.brand-link img { width: 38px; height: 38px; border-radius: 10px; }
.brand-copy { display: grid; gap: 1px; }
.brand-copy small { color: var(--green); font-size: 10px; letter-spacing: .16em; }
.nav-links { display: flex; align-items: center; gap: 20px; color: #3e5145; font-size: 14px; }
.nav-links a { text-decoration: none; }
.nav-links a:hover { color: var(--green); }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 12px;
  background: var(--green);
  color: #fff;
  font-weight: 750;
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(20, 108, 58, .18);
}
.button:hover { background: #0f5a30; }
.button.secondary { background: #fff; color: var(--green); border-color: #bcd6c5; box-shadow: none; }
.button.small { min-height: 40px; padding: 0 16px; border-radius: 10px; }

.hero-public {
  overflow: hidden;
  background:
    radial-gradient(circle at 82% 20%, rgba(49, 187, 109, .17), transparent 28%),
    linear-gradient(135deg, #0e2e45 0%, #11412f 100%);
  color: #fff;
}
.hero-grid {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 92px 0 86px;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, .85fr);
  gap: 70px;
  align-items: center;
}
.eyebrow { margin: 0 0 17px; color: #7be4a6; font-size: 13px; font-weight: 800; letter-spacing: .18em; }
.hero-public h1 { max-width: 760px; margin: 0; font-size: clamp(40px, 5.4vw, 70px); line-height: 1.06; letter-spacing: -.04em; }
.hero-lead { max-width: 680px; margin: 26px 0 0; color: #d8e8df; font-size: 19px; line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.hero-actions .secondary { color: #fff; border-color: rgba(255,255,255,.38); background: rgba(255,255,255,.08); }
.badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.badge { padding: 7px 11px; border: 1px solid rgba(255,255,255,.2); border-radius: 999px; color: #d9eee2; font-size: 12px; }
.hero-card {
  position: relative;
  min-height: 390px;
  padding: 36px;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 28px;
  background: rgba(255,255,255,.09);
  box-shadow: 0 28px 70px rgba(0,0,0,.2);
}
.hero-card::after { content: ""; position: absolute; inset: 18px; border: 1px solid rgba(255,255,255,.12); border-radius: 20px; pointer-events: none; }
.hero-card img { position: relative; z-index: 1; width: 118px; height: 118px; border-radius: 26px; box-shadow: 0 16px 38px rgba(0,0,0,.2); }
.hero-card h2 { position: relative; z-index: 1; margin: 30px 0 8px; font-size: 28px; }
.hero-card p { position: relative; z-index: 1; margin: 0; color: #cfe0d7; line-height: 1.7; }
.signal { position: relative; z-index: 1; display: grid; gap: 10px; margin-top: 28px; }
.signal div { display: flex; justify-content: space-between; padding: 11px 0; border-top: 1px solid rgba(255,255,255,.15); color: #d9eee2; font-size: 13px; }
.signal strong { color: #fff; }

.section { padding: 84px 0; }
.section.white { background: #fff; }
.section.dark { background: var(--navy); color: #fff; }
.container { width: min(1180px, calc(100% - 36px)); margin: 0 auto; }
.section-head { max-width: 760px; margin-bottom: 42px; }
.kicker { margin: 0 0 10px; color: var(--green-2); font-size: 13px; font-weight: 800; letter-spacing: .15em; }
.section h2 { margin: 0; font-size: clamp(30px, 4vw, 46px); line-height: 1.18; letter-spacing: -.025em; }
.section-head > p:last-child { margin: 17px 0 0; color: var(--muted); font-size: 17px; line-height: 1.8; }
.dark .section-head > p:last-child { color: #c7d7df; }

.steps, .feature-grid, .trust-grid, .link-grid { display: grid; gap: 18px; }
.steps { grid-template-columns: repeat(4, 1fr); counter-reset: step; }
.step, .feature, .trust-card, .link-card {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 12px 34px rgba(18, 32, 24, .055);
}
.step { min-height: 240px; padding: 26px; counter-increment: step; }
.step::before { content: "0" counter(step); display: inline-grid; place-items: center; width: 42px; height: 42px; border-radius: 50%; background: #e6f5eb; color: var(--green); font-weight: 850; }
.step h3, .feature h3, .trust-card h3, .link-card h3 { margin: 22px 0 10px; font-size: 20px; }
.step p, .feature p, .trust-card p, .link-card p { margin: 0; color: var(--muted); line-height: 1.75; }
.feature-grid { grid-template-columns: repeat(2, 1fr); }
.feature { padding: 30px; }
.feature-tag { display: inline-block; color: var(--blue); font-size: 12px; font-weight: 800; letter-spacing: .12em; }
.trust-grid { grid-template-columns: repeat(3, 1fr); }
.trust-card { padding: 28px; background: rgba(255,255,255,.07); border-color: rgba(255,255,255,.14); box-shadow: none; }
.trust-card h3 { color: #fff; }
.trust-card p { color: #c8d8df; }
.trial-panel { display: grid; grid-template-columns: 1fr auto; gap: 34px; align-items: center; padding: 40px; border: 1px solid #bcd9c6; border-radius: 24px; background: linear-gradient(135deg, #eaf8ee, #f8fbf9); }
.trial-panel h2 { font-size: clamp(28px, 4vw, 42px); }
.trial-panel p { max-width: 760px; margin: 14px 0 0; color: var(--muted); line-height: 1.75; }
.notice { margin-top: 22px; padding: 18px 20px; border-left: 5px solid #d97706; border-radius: 12px; background: #fff7e8; color: #76430b; line-height: 1.7; }
.operator { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(260px, .7fr); gap: 26px; }
.operator-card { padding: 34px; border: 1px solid var(--line); border-radius: 22px; background: #fff; }
.operator-card h3 { margin: 0 0 12px; font-size: 23px; }
.operator-card p { margin: 0; color: var(--muted); line-height: 1.8; }
.operator-list { margin: 24px 0 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.operator-list li { padding-top: 12px; border-top: 1px solid var(--line); color: #425348; }
.operator-list strong { color: var(--ink); }
.link-grid { grid-template-columns: repeat(4, 1fr); }
.link-card { padding: 24px; text-decoration: none; transition: transform .18s ease, box-shadow .18s ease; }
.link-card:hover { transform: translateY(-3px); box-shadow: 0 16px 40px rgba(18,32,24,.1); }
.link-card h3 { margin-top: 0; }

.doc-hero { padding: 64px 0 50px; background: linear-gradient(135deg, #0e2e45, #14532d); color: #fff; }
.doc-hero h1 { max-width: 850px; margin: 0; font-size: clamp(36px, 5vw, 58px); line-height: 1.12; }
.doc-hero p { max-width: 760px; margin: 17px 0 0; color: #d4e5dc; line-height: 1.8; }
.doc-layout { width: min(1040px, calc(100% - 36px)); margin: 0 auto; padding: 58px 0 90px; display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 48px; align-items: start; }
.doc-nav { position: sticky; top: 92px; display: grid; gap: 8px; }
.doc-nav a { padding: 10px 12px; border-radius: 9px; color: #53645a; text-decoration: none; font-size: 14px; }
.doc-nav a:hover { background: #e8f3eb; color: var(--green); }
.document { padding: 42px; border: 1px solid var(--line); border-radius: 22px; background: #fff; box-shadow: 0 14px 45px rgba(18,32,24,.05); }
.document h2 { margin: 42px 0 14px; font-size: 25px; }
.document h2:first-child { margin-top: 0; }
.document h3 { margin: 27px 0 10px; font-size: 18px; }
.document p, .document li { color: #4e6055; line-height: 1.88; }
.document ul, .document ol { padding-left: 23px; }
.document .meta { margin-bottom: 28px; padding-bottom: 20px; border-bottom: 1px solid var(--line); color: #708077; font-size: 14px; }
.document .callout { padding: 18px 20px; border-radius: 12px; background: #eef7f1; color: #31543d; }
.document a { color: var(--blue); }

.site-footer { padding: 44px 0; background: #0c2435; color: #c9d8df; }
.footer-grid { width: min(1180px, calc(100% - 36px)); margin: 0 auto; display: grid; grid-template-columns: 1.3fr 1fr; gap: 30px; }
.footer-grid strong { color: #fff; }
.footer-grid p { margin: 10px 0 0; line-height: 1.7; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 16px; align-content: start; }
.footer-links a { color: #dce8ed; text-decoration: none; font-size: 14px; }
.copyright { width: min(1180px, calc(100% - 36px)); margin: 26px auto 0; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.1); color: #94a9b4; font-size: 12px; }

@media (max-width: 900px) {
  .nav-links a:not(.button) { display: none; }
  .hero-grid, .operator { grid-template-columns: 1fr; }
  .hero-grid { padding: 68px 0; gap: 38px; }
  .hero-card { min-height: auto; }
  .steps, .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .link-grid { grid-template-columns: repeat(2, 1fr); }
  .doc-layout { grid-template-columns: 1fr; gap: 22px; }
  .doc-nav { position: static; grid-template-columns: repeat(3, 1fr); }
  .trial-panel { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .nav { width: min(100% - 24px, 1180px); min-height: 62px; }
  .brand-copy small { display: none; }
  .nav .button.small { padding: 0 12px; font-size: 13px; }
  .hero-grid, .container, .footer-grid, .copyright { width: min(100% - 28px, 1180px); }
  .hero-grid { padding: 52px 0; }
  .hero-public h1 { font-size: 42px; }
  .hero-lead { font-size: 17px; }
  .hero-card { padding: 28px; }
  .section { padding: 60px 0; }
  .steps, .feature-grid, .trust-grid, .link-grid { grid-template-columns: 1fr; }
  .step { min-height: 0; }
  .trial-panel, .operator-card, .document { padding: 26px 22px; }
  .doc-layout { width: min(100% - 24px, 1040px); padding-top: 34px; }
  .doc-nav { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-links { justify-content: flex-start; }
}