:root {
  --ink-950: #111827;
  --ink-800: #263244;
  --ink-650: #4f5d70;
  --ink-500: #758196;
  --paper: #ffffff;
  --paper-soft: #f7f8fa;
  --paper-strong: #eef2f6;
  --line: #e1e6ed;
  --line-strong: #cbd3df;
  --brand: #1e6fff;
  --brand-strong: #1559d6;
  --brand-soft: #edf4ff;
  --accent: #147d64;
  --accent-soft: #eaf7f2;
  --platform-accent: var(--brand);
  --platform-accent-strong: var(--brand-strong);
  --platform-soft: var(--brand-soft);
  --shadow: 0 24px 70px rgb(27 45 73 / 0.12);
  --radius: 8px;
}

body.theme-worten {
  --platform-accent: #d94a3a;
  --platform-accent-strong: #b9362a;
  --platform-soft: #fff1ef;
}

body.theme-fnac {
  --platform-accent: #b88900;
  --platform-accent-strong: #8a6700;
  --platform-soft: #fff7d6;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink-950);
  background: var(--paper);
  font-family: "MiSans", "HarmonyOS Sans SC", "Noto Sans SC", "Source Han Sans SC", "PingFang SC", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

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

:focus-visible {
  outline: 3px solid rgb(30 111 255 / 0.24);
  outline-offset: 3px;
}

.container {
  width: min(1120px, calc(100% - 64px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgb(255 255 255 / 0.96);
  backdrop-filter: blur(12px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 750;
}

.brand img { width: 32px; height: 32px; }
.brand small { display: block; color: var(--ink-500); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--ink-650);
  font-size: 13px;
  font-weight: 650;
}

.nav-links a:hover { color: var(--brand); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 17px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 700;
  transition: background-color 150ms ease, border-color 150ms ease, color 150ms ease;
}

.btn-primary { color: #fff; background: var(--brand); border-color: var(--brand); }
.btn-primary:hover { background: var(--brand-strong); border-color: var(--brand-strong); }
.btn-secondary { color: var(--ink-800); background: #fff; border-color: var(--line-strong); }
.btn-secondary:hover { color: var(--brand-strong); border-color: var(--brand); }

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 30px;
  color: var(--ink-500);
  font-size: 12px;
}

.breadcrumb a:hover { color: var(--brand); }

.hero {
  border-bottom: 1px solid var(--line);
  background: linear-gradient(105deg, #fff 0 64%, var(--platform-soft) 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.72fr);
  gap: 72px;
  align-items: center;
  min-height: 620px;
  padding: 64px 0 84px;
}

.eyebrow {
  display: inline-block;
  padding-left: 12px;
  border-left: 2px solid var(--platform-accent);
  color: var(--ink-500);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  margin-top: 22px;
  font-size: clamp(46px, 5.2vw, 68px);
  font-weight: 760;
  line-height: 1.06;
  letter-spacing: -0.05em;
}

.hero-copy {
  max-width: 700px;
  margin-top: 24px;
  color: var(--ink-650);
  font-size: 17px;
  line-height: 1.85;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.signal-panel {
  position: relative;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.platform-code {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  min-height: 108px;
  padding: 20px;
  border-bottom: 1px solid var(--line);
  background: var(--platform-soft);
}

.platform-code strong {
  color: var(--platform-accent-strong);
  font-size: 58px;
  line-height: 0.82;
  letter-spacing: -0.08em;
}

.platform-code span {
  color: var(--platform-accent-strong);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.1em;
  text-align: right;
}

.signal-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 20px;
  border-bottom: 1px solid var(--line);
}

.signal-head span { color: var(--platform-accent-strong); font-size: 12px; font-weight: 750; }

.signal-list { margin: 0; padding: 0; list-style: none; }

.signal-list li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  padding: 17px 20px;
  border-bottom: 1px solid var(--line);
}

.signal-list li:last-child { border-bottom: 0; }
.signal-list strong { font-size: 14px; }
.signal-list span { color: var(--ink-500); font-size: 12px; }
.signal-list b { color: var(--platform-accent-strong); font-size: 12px; }

.section { padding: 92px 0; }
.section-muted { border-block: 1px solid var(--line); background: var(--paper-soft); }

.section-head { max-width: 800px; margin-bottom: 38px; }
.section-kicker { color: var(--brand); font-size: 11px; font-weight: 750; letter-spacing: 0.11em; text-transform: uppercase; }
h2 { margin-top: 11px; font-size: clamp(32px, 4vw, 46px); line-height: 1.18; letter-spacing: -0.035em; }
.section-copy { margin-top: 15px; color: var(--ink-650); font-size: 16px; line-height: 1.85; }

.grid-3, .grid-4 {
  display: grid;
  border-top: 1px solid var(--line-strong);
  border-left: 1px solid var(--line);
}

.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
  min-height: 210px;
  padding: 26px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.card-index { display: block; margin-bottom: 24px; color: var(--platform-accent-strong); font-size: 11px; font-weight: 750; }
.card h3 { font-size: 18px; line-height: 1.35; }
.card p { margin-top: 12px; color: var(--ink-650); font-size: 14px; line-height: 1.8; }

.agent-note {
  display: grid;
  grid-template-columns: minmax(220px, 0.65fr) minmax(0, 1.35fr);
  gap: 44px;
  padding: 38px;
  border-left: 3px solid var(--platform-accent);
  background: var(--platform-soft);
}

.agent-note h2 { margin-top: 0; font-size: clamp(28px, 3vw, 38px); }
.agent-note p { color: var(--ink-650); font-size: 15px; line-height: 1.9; }

.steps { counter-reset: step; }
.step { position: relative; padding-top: 64px; }
.step::before {
  counter-increment: step;
  content: "0" counter(step);
  position: absolute;
  top: 24px;
  left: 26px;
  color: var(--platform-accent-strong);
  font-size: 11px;
  font-weight: 750;
}

.faq-list { display: grid; gap: 10px; max-width: 880px; }
.faq-list details { padding: 0 18px; border: 1px solid var(--line-strong); background: #fff; }
.faq-list summary { padding: 19px 0; cursor: pointer; font-weight: 700; }
.faq-list p { padding: 0 0 20px; color: var(--ink-650); font-size: 14px; line-height: 1.85; }

.cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 40px;
  align-items: center;
  padding: 46px;
  border-radius: var(--radius);
  color: #fff;
  background: #10243d;
}

.cta h2 { margin-top: 0; color: #fff; }
.cta p { margin-top: 12px; color: #c6d1df; }
.cta .btn-secondary { color: #fff; border-color: #6f8198; background: transparent; }

.contact-email {
  display: inline-block;
  margin-top: 10px;
  color: #fff;
  font-size: 14px;
  font-weight: 650;
}

.contact-email:hover { text-decoration: underline; }

.site-footer { padding: 34px 0; color: #bfd0e1; background: #0b1728; }
.footer-row { display: flex; justify-content: space-between; gap: 24px; align-items: center; }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; font-size: 13px; }
.footer-links a:hover { color: #fff; }

@media (max-width: 860px) {
  .nav-links a:not(.btn) { display: none; }
  .hero-grid { grid-template-columns: 1fr; min-height: auto; gap: 44px; }
  .signal-panel { max-width: 680px; }
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .agent-note { grid-template-columns: 1fr; gap: 20px; }
}

@media (max-width: 620px) {
  .container { width: min(100% - 32px, 1120px); }
  .nav { min-height: 62px; }
  .brand small, .nav-links .btn-secondary { display: none; }
  .nav-links { gap: 8px; }
  .nav-links .btn { min-height: 38px; padding-inline: 12px; font-size: 13px; }
  .breadcrumb { padding-top: 22px; }
  .hero-grid { padding: 48px 0 62px; }
  .hero { background: linear-gradient(180deg, #fff 0 72%, var(--platform-soft) 100%); }
  h1 { font-size: 39px; }
  .hero-copy { font-size: 16px; }
  .section { padding: 70px 0; }
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .card { min-height: 0; }
  .agent-note, .cta { padding: 26px 22px; }
  .cta { grid-template-columns: 1fr; gap: 24px; }
  .footer-row { display: grid; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}