:root{
  --bg:#f3f6fb;
  --ink:#111a2c;
  --muted:#64708f;
  --card:#ffffff;
  --rail:#f9fbff;
  --bd:rgba(16,32,72,.08);
  --accent:#13c18a;
  --accent2:#2f7cff;
  --r:22px;
  --gap:28px;
  --max:1280px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"DM Sans",system-ui,-apple-system,Segoe UI,Roboto,Arial,Helvetica,sans-serif;
  background:
    radial-gradient(1000px 600px at 10% -10%, #e7eefc 0, transparent 60%),
    linear-gradient(180deg,#f7f9fe 0,var(--bg) 50%,#eef2fb 100%);
  color:var(--ink);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent2);text-decoration:none}
a:hover{text-decoration:underline}

.polar-wrap{max-width:var(--max);margin:0 auto;padding:20px 18px 56px;display:grid;grid-template-columns:300px 1fr;gap:var(--gap)}
.polar-rail{
  position:sticky;top:0;align-self:start;height:100vh;display:flex;flex-direction:column;gap:16px;
  background:var(--rail);border:1px solid var(--bd);border-radius:16px;padding:18px;
  box-shadow:0 24px 64px rgba(20,32,80,.06)
}
.polar-logo{
  font-weight:800;font-size:22px;letter-spacing:.2px;line-height:1;
  background:linear-gradient(90deg,#0f1b2d,#21408a);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.polar-nav a{
  display:block;margin:8px 0 0;padding:10px 12px;border:1px solid var(--bd);border-radius:12px;background:#fff;color:#182238
}
.polar-social{display:flex;gap:10px;margin-top:6px;flex-wrap:wrap}
.polar-soc{
  display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:10px;border:1px solid var(--bd);font-weight:700;color:#fff
}
.polar-soc.x{background:linear-gradient(135deg,#111,#444)}
.polar-soc.fb{background:linear-gradient(135deg,#0a5cff,#0838a8)}
.polar-soc.dc{background:linear-gradient(135deg,#5865F2,#3a45ba)}
.polar-map{margin-top:auto}
.polar-map-title{font-weight:800;color:#233050;margin:0 0 8px}
.polar-map-frame{width:100%;height:230px;border:0;border-radius:12px;box-shadow:0 10px 24px rgba(20,32,80,.08)}

.polar-main{display:flex;flex-direction:column;gap:var(--gap)}
.polar-lead{
  background:var(--card);border:1px solid var(--bd);border-radius:var(--r);padding:22px;
  box-shadow:0 22px 60px rgba(20,32,80,.06)
}
h1{font-size:clamp(28px,4vw,44px);margin:2px 0 12px;font-weight:800;color:#0f1b2d}
.polar-lead img{max-width:100%;height:auto;border-radius:14px;border:1px solid var(--bd);display:block}
.movie{
  width:100%;aspect-ratio:16/9;border:0;display:block;border-radius:14px;margin:12px 0 0;
  box-shadow:0 14px 36px rgba(20,36,90,.08)
}

.polar-article{
  background:var(--card);border:1px solid var(--bd);border-radius:var(--r);padding:26px;
  box-shadow:0 22px 60px rgba(20,36,90,.06)
}
h2{font-size:clamp(20px,2.6vw,28px);margin:26px 0 12px;font-weight:800;color:#13254a}
h3{font-size:clamp(18px,2.2vw,22px);margin:20px 0 8px;font-weight:700;color:#1a2f57}
h4{font-size:16px;margin:18px 0 8px;font-weight:700;color:#213866}
p{margin:0 0 14px}

table{
  width:100%;border-collapse:separate;border-spacing:0;margin:16px 0 20px;background:#fff;
  border:1px solid var(--bd);border-radius:14px;overflow:hidden;box-shadow:inset 0 1px 0 rgba(20,36,90,.04)
}
th,td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--bd)}
th{font-weight:800;color:#10203e;background:linear-gradient(180deg,rgba(19,193,138,.12),rgba(47,124,255,.06))}
tr:last-child td{border-bottom:0}

ul,ol{margin:10px 0 18px;padding-left:18px}
ul li{margin:8px 0}
ol li{margin:8px 0}

.polar-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid var(--bd);margin-top:28px;padding-top:16px;color:var(--muted)
}
.polar-foot a{color:#1d2d4f}

@media (max-width:1024px){
  .polar-wrap{grid-template-columns:1fr}
  .polar-rail{position:relative;height:auto}
  .polar-map{margin-top:12px}
}
@media (max-width:560px){
  .polar-wrap{padding:16px 14px 40px}
  .polar-lead{padding:18px}
  .polar-article{padding:20px}
  .polar-map-frame{height:200px}
}