:root {
  --bg: #061018;
  --bg2: #0b1824;
  --panel: #102033;
  --line: rgba(94, 196, 220, 0.22);
  --cyan: #5ec4dc;
  --cyan2: #9be3f2;
  --text: #eef6fa;
  --muted: #90a8b8;
  --max: 1140px;
  --radius: 12px;
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  min-height: 100vh;
}
a { color: var(--cyan2); text-decoration: none; }
a:hover { color: #fff; }
img { max-width: 100%; height: auto; display: block; }
.ribbon {
  background: #040c12;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
}
.ribbon-in {
  max-width: var(--max);
  margin: 0 auto;
  padding: 8px 20px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(6, 16, 24, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-in {
  max-width: var(--max);
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  flex-shrink: 0;
}
.logo img {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #000;
  object-fit: contain;
}
.logo b { display: block; font-size: 17px; letter-spacing: 0.04em; }
.logo small {
  display: block;
  color: var(--cyan);
  font-size: 11px;
  letter-spacing: 0.16em;
}
.nav {
  margin-left: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  align-items: center;
}
.nav a { color: var(--muted); font-size: 14px; padding: 6px 0; }
.nav a.on, .nav a:hover { color: var(--cyan2); }
.nav .go {
  margin-left: 6px;
  background: linear-gradient(135deg, #2a8fad, #5ec4dc);
  color: #041018 !important;
  font-weight: 700;
  padding: 8px 14px;
  border-radius: 999px;
}
.burger {
  display: none;
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--cyan2);
  border-radius: 8px;
  padding: 8px 12px;
  cursor: pointer;
}
.hero {
  overflow: hidden;
  background:
    radial-gradient(700px 360px at 12% -8%, rgba(94, 196, 220, 0.2), transparent 60%),
    radial-gradient(560px 300px at 88% 8%, rgba(42, 120, 160, 0.18), transparent 55%),
    linear-gradient(180deg, #0a1a28, #061018 75%);
  border-bottom: 1px solid var(--line);
}
.hero-in {
  max-width: var(--max);
  margin: 0 auto;
  padding: 64px 20px 52px;
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 36px;
  align-items: center;
}
.eyebrow {
  display: inline-block;
  color: var(--cyan);
  letter-spacing: 0.18em;
  font-size: 11px;
  font-weight: 700;
  margin-bottom: 14px;
}
.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.22;
  font-weight: 800;
}
.hero .lead {
  margin: 0 0 26px;
  color: var(--muted);
  font-size: 16px;
  max-width: 54ch;
}
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 10px;
  font-weight: 700;
  border: 1px solid transparent;
}
.btn-c {
  background: linear-gradient(135deg, #2a8fad, #5ec4dc);
  color: #041018;
}
.btn-l {
  border-color: var(--line);
  color: var(--cyan2);
  background: rgba(255, 255, 255, 0.02);
}
.shot {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.4);
}
.shot img { width: 100%; aspect-ratio: 16/11; object-fit: cover; }
.shot p {
  margin: 0;
  padding: 12px 14px;
  color: var(--muted);
  font-size: 13px;
  border-top: 1px solid var(--line);
}
.pillars {
  max-width: var(--max);
  margin: -24px auto 0;
  padding: 0 20px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  position: relative;
  z-index: 2;
}
.pillar {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
}
.pillar strong { display: block; color: var(--cyan2); margin-bottom: 6px; }
.pillar span { color: var(--muted); font-size: 13px; }
.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 56px 20px;
}
.k {
  color: var(--cyan);
  letter-spacing: 0.16em;
  font-size: 11px;
  font-weight: 700;
  margin-bottom: 10px;
}
.head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.head h2 { margin: 0; font-size: clamp(22px, 3vw, 30px); }
.head p { margin: 8px 0 0; color: var(--muted); max-width: 62ch; }
.g3, .g2 { display: grid; gap: 16px; }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g2 { grid-template-columns: 1.1fr 0.9fr; align-items: center; }
.g2.rev > :first-child { order: 2; }
.cardish, .box {
  background: var(--bg2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}
.cardish h3, .box h3 { margin: 0 0 10px; font-size: 18px; }
.cardish p, .box p { margin: 0; color: var(--muted); }
.media {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
}
.media img { width: 100%; aspect-ratio: 16/11; object-fit: cover; }
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.item {
  display: block;
  background: var(--bg2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  color: inherit;
  transition: border-color 0.2s, transform 0.2s;
}
.item:hover {
  border-color: rgba(94, 196, 220, 0.5);
  transform: translateY(-2px);
  color: inherit;
}
.item .cover { position: relative; }
.item .cover img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.item .tag {
  position: absolute;
  left: 10px;
  top: 10px;
  background: rgba(6, 16, 24, 0.88);
  border: 1px solid var(--line);
  color: var(--cyan2);
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 999px;
}
.item .body { padding: 16px; }
.item h3 { margin: 0 0 8px; font-size: 17px; }
.item p { margin: 0; color: var(--muted); font-size: 14px; }
.item .meta { margin-top: 12px; color: var(--cyan); font-size: 12px; }
.list { display: grid; gap: 12px; }
.line {
  display: grid;
  grid-template-columns: 140px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg2);
  color: inherit;
}
.line:hover { border-color: rgba(94, 196, 220, 0.45); color: inherit; }
.line .thumb {
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--line);
}
.line .thumb img { width: 100%; aspect-ratio: 16/11; object-fit: cover; }
.line .txt .meta { color: var(--cyan); font-size: 12px; margin-bottom: 4px; }
.line h3 { margin: 0 0 6px; font-size: 16px; }
.line p { margin: 0; color: var(--muted); font-size: 14px; }
.line .more { color: var(--cyan2); font-size: 13px; white-space: nowrap; }
.pager {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-top: 24px;
  flex-wrap: wrap;
}
.pager button {
  min-width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--bg2);
  color: var(--text);
  cursor: pointer;
}
.pager button.on, .pager button:hover {
  background: linear-gradient(135deg, #2a8fad, #5ec4dc);
  color: #041018;
  border-color: transparent;
}
.banner {
  background:
    linear-gradient(135deg, rgba(94, 196, 220, 0.12), transparent 48%),
    var(--bg2);
  border-bottom: 1px solid var(--line);
}
.banner-in { max-width: var(--max); margin: 0 auto; padding: 44px 20px; }
.banner h1 { margin: 8px 0 10px; font-size: clamp(26px, 3.5vw, 36px); }
.banner p { margin: 0; color: var(--muted); max-width: 64ch; }
.prose h2 { margin: 28px 0 12px; font-size: 22px; }
.prose h3 { margin: 22px 0 10px; font-size: 18px; }
.prose p, .prose li { color: #c5d6e0; }
.prose ul, .prose ol { padding-left: 1.2em; }
.fig {
  margin: 18px 0 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
}
.fig img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.fig figcaption {
  padding: 10px 14px;
  color: var(--muted);
  font-size: 13px;
  border-top: 1px solid var(--line);
}
.slot {
  min-height: 160px;
  border: 1px dashed rgba(94, 196, 220, 0.3);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
  margin: 20px 0;
}
.doc { max-width: var(--max); margin: 0 auto; padding: 28px 20px 56px; }
.crumbs { color: var(--muted); font-size: 13px; margin-bottom: 18px; }
.crumbs a { color: var(--cyan2); }
.layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 24px;
}
.side {
  align-self: start;
  position: sticky;
  top: 88px;
  background: var(--bg2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}
.side h3 { margin: 0 0 12px; font-size: 15px; color: var(--cyan2); }
.side a { display: block; color: var(--muted); padding: 6px 0; font-size: 14px; }
.side a:hover { color: var(--cyan2); }
table.cmp {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0;
  font-size: 14px;
}
table.cmp th, table.cmp td {
  border: 1px solid var(--line);
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
}
table.cmp th { background: #122536; color: var(--cyan2); }
table.cmp td { color: #c5d6e0; background: rgba(255, 255, 255, 0.015); }
.steps { display: grid; gap: 12px; }
.step {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg2);
}
.step i {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(94, 196, 220, 0.12);
  color: var(--cyan2);
  font-style: normal;
  font-weight: 800;
}
.foot {
  margin-top: 40px;
  border-top: 1px solid var(--line);
  background: #040c12;
}
.foot-grid {
  max-width: var(--max);
  margin: 0 auto;
  padding: 40px 20px 24px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 24px;
}
.foot h4 { margin: 0 0 12px; color: var(--cyan2); font-size: 15px; }
.foot p, .foot a { color: var(--muted); font-size: 14px; }
.foot .col a { display: block; padding: 4px 0; }
.legal {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px 28px;
  color: #6d8290;
  font-size: 12px;
}
@media (max-width: 960px) {
  .hero-in, .g2, .layout, .foot-grid, .pillars { grid-template-columns: 1fr; }
  .g2.rev > :first-child { order: 0; }
  .g3, .grid { grid-template-columns: 1fr 1fr; }
  .line { grid-template-columns: 100px 1fr; }
  .line .more { display: none; }
  .burger { display: inline-flex; }
  .nav { display: none; width: 100%; flex-direction: column; align-items: stretch; }
  .header-in.open .nav { display: flex; }
  .nav .go { margin-left: 0; text-align: center; }
  .side { position: static; }
}
@media (max-width: 640px) {
  .g3, .grid { grid-template-columns: 1fr; }
  .hero-in { padding-top: 40px; }
}