:root{
  --bg:#071521;
  --panel:#0d2437;
  --panel-2:#112d46;
  --text:#eaf5ff;
  --muted:#a8c0d7;
  --line:#1f415c;
  --accent:#21e38a;
  --accent-2:#8fffd1;
  --warn:#ffd166;
  --shadow:0 10px 28px rgba(0,0,0,.24);
  --radius:18px;
  --max:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Microsoft YaHei","PingFang SC","Noto Sans SC",sans-serif;
  color:var(--text);
  background:linear-gradient(180deg,#071521 0%,#091b2a 40%,#081521 100%);
  line-height:1.85;
}
img{max-width:100%;display:block}
a{color:var(--accent-2);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{width:min(var(--max),calc(100% - 32px));margin:0 auto}
.site-header{
  background:rgba(4,12,20,.92);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.topbar{
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding:14px 0;
}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:1.1rem;color:#fff}
.brand img{width:44px;height:44px}
.nav-list{
  list-style:none;padding:0;margin:0;display:flex;gap:18px;flex-wrap:wrap;align-items:center
}
.nav-list a{color:#e8f3fb;font-weight:600}
.cta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:11px 18px;border-radius:999px;background:var(--accent);color:#032112;font-weight:800;
  box-shadow:var(--shadow)
}
.hero{
  position:relative;overflow:hidden;border-bottom:1px solid rgba(255,255,255,.08)
}
.hero-media{
  min-height:540px;
  background:
    linear-gradient(120deg,rgba(6,14,25,.84),rgba(6,14,25,.52)),
    url('/images/hero.webp') center/cover no-repeat;
  display:flex;align-items:center
}
.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:center;padding:52px 0}
.badge{display:inline-block;padding:6px 12px;border:1px solid rgba(255,255,255,.18);border-radius:999px;color:var(--accent-2);font-size:.95rem;background:rgba(255,255,255,.05)}
.hero h1{font-size:clamp(2rem,4vw,3.6rem);line-height:1.15;margin:16px 0}
.hero p{color:#d2e6f7;font-size:1.06rem;max-width:760px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:22px}
.hero-card{
  background:linear-gradient(180deg,rgba(12,36,55,.94),rgba(8,25,39,.94));
  border:1px solid rgba(255,255,255,.08); border-radius:22px; padding:22px;
  box-shadow:var(--shadow)
}
.hero-score{display:grid;grid-template-columns:1fr auto 1fr;gap:10px;align-items:center;margin-top:10px}
.hero-score strong{font-size:2rem}
.hero-score .mid{font-size:1rem;color:var(--accent)}
.breadcrumb{font-size:.95rem;color:var(--muted);padding:14px 0}
.breadcrumb a{color:var(--muted)}
main section{padding:34px 0}
.panel{
  background:linear-gradient(180deg,rgba(14,34,52,.95),rgba(9,24,38,.95));
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius);
  padding:26px;
  box-shadow:var(--shadow)
}
h2{font-size:clamp(1.5rem,2.2vw,2.2rem);margin:0 0 14px}
h3{font-size:1.2rem;margin:0 0 10px}
p{margin:0 0 14px}
.lead{font-size:1.05rem;color:#d7ebfa}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.card{
  background:linear-gradient(180deg,rgba(15,39,60,.95),rgba(9,24,38,.95));
  border:1px solid rgba(255,255,255,.08);border-radius:18px;overflow:hidden;box-shadow:var(--shadow)
}
.card-body{padding:18px}
.card small{color:var(--muted)}
.feature-list, .faq-list, .simple-list{padding-left:20px;margin:0}
.kpi{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px
}
.kpi .item{
  border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:18px;background:rgba(255,255,255,.03)
}
.kpi strong{display:block;font-size:1.8rem;color:var(--accent)}
.author-box{display:grid;grid-template-columns:120px 1fr;gap:18px;align-items:center}
.author-box img{width:120px;height:120px;border-radius:50%;object-fit:cover;border:3px solid rgba(255,255,255,.14)}
.review{padding:18px;border:1px solid rgba(255,255,255,.08);border-radius:16px;background:rgba(255,255,255,.03)}
.review .meta{color:var(--muted);font-size:.95rem}
.stars{color:#ffd166;font-size:1.1rem;letter-spacing:2px}
.notice{
  padding:18px;border-left:4px solid var(--warn);background:rgba(255,209,102,.08);border-radius:12px
}
.footer{
  margin-top:28px;background:#05111a;border-top:1px solid rgba(255,255,255,.08)
}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:22px;padding:34px 0}
.footer h3{font-size:1.06rem}
.footer ul{list-style:none;padding:0;margin:0}
.footer li{margin:10px 0;color:var(--muted)}
.copy{padding:14px 0 24px;color:var(--muted);border-top:1px solid rgba(255,255,255,.06)}
.flash{
  display:inline-block; animation:flash 1.2s ease-in-out infinite; color:var(--accent)
}
@keyframes flash{0%,100%{opacity:1}50%{opacity:.38}}
table{width:100%;border-collapse:collapse;margin-top:12px}
th,td{padding:12px;border-bottom:1px solid rgba(255,255,255,.08);text-align:left}
th{color:var(--accent-2)}
.sr-box{background:rgba(255,255,255,.04);padding:16px;border-radius:16px;border:1px solid rgba(255,255,255,.08)}
@media (max-width:980px){
  .hero-grid,.grid-2,.grid-3,.footer-grid,.kpi{grid-template-columns:1fr}
  .topbar{flex-direction:column;align-items:flex-start}
}
@media (max-width:720px){
  .wrap{width:min(var(--max),calc(100% - 22px))}
  .nav-list{gap:12px}
  .hero-media{min-height:460px}
  .author-box{grid-template-columns:1fr}
}