/* 布局参考 Start Bootstrap Business Frontpage（MIT）结构，样式与文案为竞乐传媒原创 */

:root {
  --navy: #0c2340;
  --navy-2: #13315c;
  --gold: #c4a35a;
  --gold-2: #dbb96a;
  --paper: #f4f1ea;
  --white: #ffffff;
  --ink: #1c2430;
  --muted: #5b6573;
  --line: #e6e1d6;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.7;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; }

.wrap {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.topbar {
  background: var(--navy);
  color: rgba(255,255,255,.78);
  font-size: 13px;
  padding: 8px 0;
}
.topbar .wrap { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.topbar a:hover { color: var(--gold-2); }

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.mark {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: linear-gradient(145deg, var(--navy-2), var(--navy));
  color: var(--gold-2);
  display: grid;
  place-items: center;
  font-weight: 700;
  letter-spacing: .04em;
}
.brand strong { display: block; font-size: 16px; color: var(--navy); }
.brand small { display: block; font-size: 11px; color: var(--muted); letter-spacing: .08em; }
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-links a {
  padding: 8px 14px;
  font-size: 14px;
  color: var(--ink);
  border-radius: 6px;
}
.nav-links a.active, .nav-links a:hover { color: var(--navy); background: var(--paper); }
.nav-toggle { display: none; }

.hero {
  position: relative;
  color: #fff;
  padding: 88px 0 96px;
  background:
    linear-gradient(105deg, rgba(12,35,64,.94) 0%, rgba(19,49,92,.78) 48%, rgba(12,35,64,.88) 100%),
    repeating-linear-gradient(135deg, rgba(196,163,90,.08) 0 2px, transparent 2px 18px),
    var(--navy);
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -80px;
  width: 320px;
  height: 320px;
  border: 24px solid rgba(196,163,90,.18);
  border-radius: 40px;
  transform: rotate(18deg);
}
.hero .wrap { position: relative; z-index: 1; max-width: 760px; margin-left: auto; margin-right: auto; }
.kicker {
  display: inline-block;
  margin: 0 0 16px;
  padding: 4px 10px;
  border: 1px solid rgba(196,163,90,.55);
  color: var(--gold-2);
  font-size: 12px;
  letter-spacing: .18em;
}
.hero h1 { margin: 0 0 16px; font-size: 42px; font-weight: 700; line-height: 1.25; }
.hero p { margin: 0 0 28px; color: rgba(255,255,255,.82); font-size: 16px; }
.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 600;
}
.btn-gold { background: var(--gold); color: var(--navy); }
.btn-gold:hover { background: var(--gold-2); }
.btn-ghost { margin-left: 10px; border: 1px solid rgba(255,255,255,.35); color: #fff; }

.strip {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.strip .wrap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  text-align: center;
  padding: 28px 0;
}
.strip strong { display: block; color: var(--navy); font-size: 15px; }
.strip span { color: var(--muted); font-size: 13px; }

.section { padding: 72px 0; }
.section h2 {
  margin: 0 0 8px;
  font-size: 28px;
  color: var(--navy);
}
.section .sub { margin: 0 0 36px; color: var(--muted); }
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.card {
  padding: 28px 24px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--gold);
  background: #fff;
  box-shadow: 0 8px 24px rgba(12,35,64,.04);
}
.card h3 { margin: 0 0 10px; font-size: 18px; color: var(--navy); }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.ico {
  width: 44px; height: 44px; margin-bottom: 16px;
  border-radius: 8px; background: var(--paper);
  display: grid; place-items: center; color: var(--navy);
}

.about-block {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 40px;
  align-items: center;
}
.about-panel {
  background: var(--navy);
  color: #fff;
  min-height: 280px;
  padding: 36px 32px;
  border-radius: 6px;
  position: relative;
}
.about-panel span { color: var(--gold-2); font-size: 13px; letter-spacing: .12em; }
.about-panel h3 { margin: 10px 0 12px; font-size: 24px; }
.about-panel p { margin: 0; color: rgba(255,255,255,.78); }
.prose p { color: var(--muted); margin: 0 0 14px; }
.prose ul { color: var(--muted); padding-left: 18px; }

.cta {
  background: var(--navy-2);
  color: #fff;
  padding: 48px 0;
  text-align: center;
}
.cta h2 { margin: 0 0 10px; }
.cta p { margin: 0 0 20px; color: rgba(255,255,255,.75); }

.page { padding: 48px 0 72px; }
.page h1 { margin: 0 0 8px; color: var(--navy); font-size: 32px; }
.crumb { color: var(--muted); font-size: 13px; margin-bottom: 28px; }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.contact-item {
  padding: 22px;
  border: 1px solid var(--line);
  background: var(--paper);
}
.contact-item b { display: block; color: var(--navy); margin-bottom: 6px; }

.footer {
  background: #08182c;
  color: rgba(255,255,255,.72);
  padding: 48px 0 24px;
  font-size: 14px;
}
.foot-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer h4 { margin: 0 0 12px; color: #fff; font-size: 15px; }
.footer a:hover { color: var(--gold-2); }
.footer .legal {
  padding-top: 18px;
  text-align: center;
  font-size: 12px;
  color: rgba(255,255,255,.5);
}
.footer .legal p { margin: 6px 0; }
.footer .legal a { color: rgba(255,255,255,.55); }

@media (max-width: 800px) {
  .nav-toggle { display: block; border: 0; background: transparent; font-size: 22px; }
  .nav-links {
    display: none;
    position: absolute;
    left: 0; right: 0; top: 72px;
    background: #fff;
    flex-direction: column;
    padding: 12px 20px 20px;
    border-bottom: 1px solid var(--line);
  }
  .nav.open .nav-links { display: flex; }
  .hero h1 { font-size: 30px; }
  .strip .wrap, .grid-3, .about-block, .contact-grid, .foot-grid { grid-template-columns: 1fr; }
  .btn-ghost { margin: 10px 0 0; }
}