:root {
  --ink: #132024;
  --muted: #58666b;
  --line: #dbe5e2;
  --paper: #f7faf8;
  --white: #ffffff;
  --teal: #18b8b2;
  --teal-dark: #0c7778;
  --coral: #f06f61;
  --blue: #315f86;
  --gold: #b8924a;
  --shadow: 0 24px 60px rgba(27, 49, 55, .12);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }

html {
  background: var(--paper);
  color: var(--ink);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-size: 17px;
  line-height: 1.65;
  letter-spacing: 0;
}

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

img { max-width: 100%; height: auto; display: block; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(219, 229, 226, .92);
  background: rgba(247, 250, 248, .92);
  backdrop-filter: blur(18px);
}

.nav-shell {
  max-width: 1220px;
  margin: 0 auto;
  min-height: 76px;
  padding: 12px 22px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 22px;
  align-items: center;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 188px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background:
    linear-gradient(140deg, transparent 35%, var(--white) 36% 47%, transparent 48%),
    linear-gradient(160deg, var(--teal), #23c9c2 42%, var(--coral) 43% 69%, var(--blue) 70%);
  box-shadow: 0 8px 22px rgba(24, 184, 178, .24);
}

.brand-text {
  display: grid;
  line-height: 1.1;
}

.brand-main {
  font-weight: 840;
  font-size: 18px;
}

.brand-sub {
  color: var(--muted);
  font-size: 12px;
}

.main-nav {
  display: flex;
  justify-content: flex-end;
  gap: 20px;
  align-items: center;
}

.main-nav a {
  color: #26383d;
  font-weight: 680;
  font-size: 14px;
  white-space: nowrap;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lang-switch {
  display: inline-grid;
  grid-template-columns: 1fr 1fr;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--white);
}

.lang-switch a {
  min-width: 42px;
  padding: 8px 10px;
  text-align: center;
  font-size: 12px;
  font-weight: 780;
  color: var(--muted);
}

.lang-switch a.active {
  background: var(--ink);
  color: var(--white);
}

.button,
button.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 11px 18px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: var(--ink);
  color: var(--white);
  font: inherit;
  font-size: 14px;
  font-weight: 790;
  cursor: pointer;
}

.button.secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}

.button.coral {
  background: var(--coral);
  border-color: var(--coral);
}

.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 18% 20%, rgba(24, 184, 178, .16), transparent 28%),
    radial-gradient(circle at 82% 18%, rgba(240, 111, 97, .15), transparent 24%),
    linear-gradient(120deg, #fbfdfb, #eef6f4 58%, #f9f2ee);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -8% -28% 44%;
  height: 540px;
  border-radius: 999px 0 0 0;
  background:
    linear-gradient(135deg, rgba(255,255,255,.1), rgba(255,255,255,.76)),
    repeating-linear-gradient(90deg, rgba(19,32,36,.08) 0 1px, transparent 1px 42px),
    repeating-linear-gradient(0deg, rgba(19,32,36,.07) 0 1px, transparent 1px 42px);
  transform: rotate(-8deg);
}

.hero-shell {
  position: relative;
  z-index: 1;
  max-width: 1220px;
  margin: 0 auto;
  padding: 74px 22px 68px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr);
  gap: 56px;
  align-items: center;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 850;
  text-transform: uppercase;
}

.kicker::before {
  content: "";
  width: 38px;
  height: 3px;
  background: linear-gradient(90deg, var(--teal), var(--coral));
}

h1, h2, h3, p { margin-top: 0; }

h1 {
  margin-bottom: 24px;
  max-width: 760px;
  font-size: clamp(40px, 5.2vw, 74px);
  line-height: .98;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 720px;
  color: #4d5d63;
  font-size: 21px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.visual-system {
  min-height: 440px;
  position: relative;
  display: grid;
  place-items: center;
}

.resource-map {
  width: min(100%, 520px);
  aspect-ratio: 1 / .88;
  position: relative;
  border: 1px solid rgba(19, 32, 36, .14);
  background:
    linear-gradient(145deg, rgba(255,255,255,.72), rgba(255,255,255,.32)),
    linear-gradient(90deg, rgba(24,184,178,.13), rgba(49,95,134,.10), rgba(240,111,97,.13));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.resource-map::before {
  content: "";
  position: absolute;
  inset: 14%;
  border: 1px solid rgba(19,32,36,.18);
  border-radius: 50%;
  box-shadow: 0 0 0 42px rgba(255,255,255,.25), 0 0 0 84px rgba(255,255,255,.18);
}

.map-node {
  position: absolute;
  width: 118px;
  min-height: 72px;
  padding: 12px;
  display: grid;
  align-content: center;
  background: rgba(255, 255, 255, .86);
  border: 1px solid rgba(19, 32, 36, .12);
  font-size: 12px;
  font-weight: 780;
  color: #23363c;
}

.map-node span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-weight: 600;
}

.map-node:nth-child(1) { left: 7%; top: 11%; border-top: 4px solid var(--teal); }
.map-node:nth-child(2) { right: 8%; top: 20%; border-top: 4px solid var(--coral); }
.map-node:nth-child(3) { left: 16%; bottom: 12%; border-top: 4px solid var(--blue); }
.map-node:nth-child(4) { right: 13%; bottom: 10%; border-top: 4px solid var(--gold); }

.metrics {
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 22px;
  transform: translateY(34px);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.metric {
  padding: 22px;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 12px 30px rgba(27,49,55,.07);
}

.metric strong {
  display: block;
  font-size: 30px;
}

.metric span {
  color: var(--muted);
  font-size: 14px;
}

main { background: var(--paper); }

.section {
  max-width: 1220px;
  margin: 0 auto;
  padding: 92px 22px;
}

.section.first { padding-top: 126px; }

.section-head {
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(0, 1fr);
  gap: 42px;
  align-items: end;
  margin-bottom: 38px;
}

.section h2 {
  font-size: clamp(30px, 3.2vw, 48px);
  line-height: 1.08;
  margin-bottom: 0;
}

.section-lead {
  color: var(--muted);
  font-size: 19px;
}

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

.card {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 26px;
  min-height: 280px;
}

.card h3 {
  font-size: 24px;
  line-height: 1.18;
  margin-bottom: 12px;
}

.card p { color: var(--muted); }

.card ul {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.card li {
  padding: 10px 0 10px 22px;
  border-top: 1px solid rgba(219, 229, 226, .78);
  position: relative;
  font-weight: 660;
  color: #26383d;
}

.card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 8px;
  height: 8px;
  background: var(--teal);
}

.band {
  background: #132024;
  color: var(--white);
}

.band .section-lead,
.band .card p { color: rgba(255,255,255,.72); }

.band .card {
  background: rgba(255,255,255,.06);
  border-color: rgba(255,255,255,.14);
}

.band .card li {
  color: rgba(255,255,255,.86);
  border-top-color: rgba(255,255,255,.12);
}

.portal-layout {
  display: grid;
  grid-template-columns: minmax(260px, .72fr) minmax(320px, 1fr);
  gap: 32px;
  align-items: start;
}

.portal-note {
  padding: 28px;
  border: 1px solid var(--line);
  background: linear-gradient(140deg, rgba(24,184,178,.12), rgba(255,255,255,.82));
}

.portal-form {
  display: grid;
  gap: 16px;
  background: var(--white);
  border: 1px solid var(--line);
  padding: 28px;
  box-shadow: var(--shadow);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

label {
  display: grid;
  gap: 6px;
  color: #24373d;
  font-size: 13px;
  font-weight: 800;
}

input, select, textarea {
  width: 100%;
  border: 1px solid #cbd9d6;
  background: #fbfdfc;
  padding: 12px 13px;
  min-height: 46px;
  color: var(--ink);
  font: inherit;
  font-size: 15px;
}

textarea { min-height: 132px; resize: vertical; }

.full { grid-column: 1 / -1; }

.checkbox {
  display: flex;
  grid-template-columns: auto 1fr;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  font-weight: 640;
  color: var(--muted);
}

.checkbox input { width: auto; min-height: 0; margin-top: 6px; }

.hidden-field {
  position: absolute;
  left: -9999px;
  opacity: 0;
}

.form-status {
  min-height: 24px;
  font-size: 14px;
  font-weight: 760;
}

.form-status.ok { color: #087a53; }
.form-status.error { color: #bb3429; }

.legal-body {
  max-width: 820px;
}

.legal-body p {
  color: #4d5d63;
  font-size: 18px;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #eef5f2;
}

.footer-shell {
  max-width: 1220px;
  margin: 0 auto;
  padding: 42px 22px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.float-support {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 30;
  box-shadow: 0 14px 34px rgba(19,32,36,.18);
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -100px;
  background: var(--ink);
  color: var(--white);
  padding: 10px 12px;
  z-index: 100;
}

.skip-link:focus { top: 12px; }

@media (max-width: 980px) {
  .nav-shell {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .main-nav {
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 4px;
  }
  .nav-actions { justify-content: flex-start; }
  .hero-shell,
  .section-head,
  .portal-layout {
    grid-template-columns: 1fr;
  }
  .visual-system { min-height: 320px; }
  .cards { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  body { font-size: 16px; }
  .nav-shell { padding: 12px 16px; }
  .hero-shell { padding: 48px 16px 52px; gap: 28px; }
  .hero-copy { font-size: 18px; }
  .metrics {
    grid-template-columns: 1fr;
    transform: none;
    margin-top: 0;
    padding: 16px;
  }
  .section,
  .section.first { padding: 54px 16px; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-shell { grid-template-columns: 1fr; }
  .float-support { right: 12px; bottom: 12px; }
}