:root {
  --ink: #0d1522; --muted: #566175; --line: rgba(13,21,34,.10);
  --blue: #2b5fd9; --bg: #f2f5f9;
}
* { margin: 0; padding: 0; box-sizing: border-box }
html { scroll-behavior: smooth; scroll-padding-top: 80px }
body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink); background: var(--bg); -webkit-font-smoothing: antialiased; line-height: 1.6;
}
a { color: var(--blue) }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px }

header {
  position: sticky; top: 0; z-index: 10; backdrop-filter: saturate(180%) blur(14px);
  background: rgba(242,245,249,.82); border-bottom: 1px solid var(--line);
}
header .wrap { display: flex; align-items: center; gap: 20px; height: 60px }
.logo { display: flex; align-items: center; gap: 9px; font-weight: 650;
        letter-spacing: -.01em; color: var(--ink); text-decoration: none }
.logo img { width: 24px; height: 24px; border-radius: 6px }
nav { margin-left: auto; display: flex; align-items: center; gap: 22px; font-size: 14px }
nav a { color: var(--muted); text-decoration: none }
nav a:hover, nav a[aria-current] { color: var(--ink) }
nav a.lang {
  font-size: 13px; color: var(--blue); background: rgba(43,95,217,.08);
  border: 1px solid rgba(43,95,217,.18); border-radius: 999px; padding: 5px 13px;
}

.hero { padding: 86px 0 0; text-align: center;
  background: radial-gradient(900px 520px at 50% -20%, #dce8ff 0%, rgba(220,232,255,0) 70%) }
.eyebrow { font-size: 13px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--muted) }
h1 { font-size: clamp(34px, 5.2vw, 56px); line-height: 1.08; letter-spacing: -.025em; margin: 14px 0 0 }
.lede { font-size: clamp(16px, 2vw, 20px); color: var(--muted); max-width: 660px; margin: 18px auto 0 }
.cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 30px }
.btn { display: inline-block; text-decoration: none; font-size: 15px; font-weight: 550;
       padding: 11px 22px; border-radius: 999px; background: var(--blue); color: #fff }
.btn.ghost { background: rgba(255,255,255,.7); color: var(--ink); border: 1px solid var(--line) }
.meta { margin-top: 14px; font-size: 13px; color: var(--muted) }
.shot { margin: 48px auto 0; max-width: 1000px; max-height: 480px; border-radius: 14px 14px 0 0;
        overflow: hidden; background: #fff;
        box-shadow: 0 30px 70px -26px rgba(13,32,68,.42), 0 0 0 1px var(--line) }
.shot img { width: 100%; display: block }

section { padding: 84px 0 }
h2 { font-size: clamp(24px, 3vw, 34px); letter-spacing: -.02em; line-height: 1.2 }
section > .wrap > .sub { color: var(--muted); margin-top: 12px; max-width: 680px }

.feat { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; margin-top: 56px }
.feat:nth-of-type(even) .txt { order: 2 }
.feat h3 { font-size: 23px; letter-spacing: -.015em }
.feat p { color: var(--muted); margin-top: 10px }
.feat ul { list-style: none; margin-top: 16px; display: flex; flex-wrap: wrap; gap: 8px }
.feat li { font-size: 13px; color: var(--blue); background: rgba(43,95,217,.07);
           border: 1px solid rgba(43,95,217,.15); border-radius: 999px; padding: 5px 12px }
.feat .pic { border-radius: 12px; overflow: hidden; background: #fff;
             box-shadow: 0 18px 44px -20px rgba(13,32,68,.4), 0 0 0 1px var(--line) }
.feat .pic img { width: 100%; display: block }

.closer { text-align: center; padding-bottom: 96px }
.closer h2 { max-width: 680px; margin: 0 auto }
.closer p { color: var(--muted); margin-top: 12px }

.doc { background: #fff; border-top: 1px solid var(--line); min-height: 70vh; padding: 64px 0 88px }
.doc .wrap { max-width: 720px }
.doc .crumb { font-size: 13.5px; color: var(--muted); text-decoration: none }
.doc h1 { font-size: clamp(28px, 4vw, 40px); margin-top: 14px }
.doc .stamp { font-size: 13px; color: var(--muted); margin-top: 10px }
.doc h2 { font-size: 18px; margin: 34px 0 8px; letter-spacing: -.01em }
.doc p, .doc li { color: var(--muted); font-size: 15.5px }
.doc p { margin-top: 8px }
.doc ul { margin: 10px 0 0 20px }
.doc li { margin-bottom: 6px }
.note { margin-top: 22px; padding: 16px 18px; border-radius: 12px; color: var(--ink); font-size: 15.5px;
        background: rgba(43,95,217,.05); border: 1px solid rgba(43,95,217,.14) }
.note p { color: inherit }

footer { border-top: 1px solid var(--line); padding: 34px 0 48px; font-size: 13.5px; color: var(--muted); background: #fff }
footer .wrap { display: flex; gap: 16px; flex-wrap: wrap; align-items: center }
footer nav { gap: 16px }

@media (max-width: 760px) {
  .feat { grid-template-columns: 1fr; gap: 28px }
  .feat:nth-of-type(even) .txt { order: 0 }
  nav a.hide-sm { display: none }
  section { padding: 60px 0 }
}