:root{
  --bg:#05060c;
  --bg2:#0a0e1a;
  --grid:rgba(0,229,255,.06);
  --cyan:#00e5ff;
  --blue:#3b82f6;
  --purple:#a855f7;
  --text:#e6edf7;
  --muted:#8a94a8;
  --card:rgba(255,255,255,.03);
  --border:rgba(255,255,255,.08);
  --glow:0 0 24px rgba(0,229,255,.35);
}

*{margin:0;padding:0;box-sizing:border-box}

html{scroll-behavior:smooth}

body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;
  background:radial-gradient(1200px 700px at 80% -10%,rgba(168,85,247,.16),transparent 60%),
             radial-gradient(1000px 600px at 10% 10%,rgba(59,130,246,.14),transparent 55%),
             linear-gradient(180deg,var(--bg),var(--bg2));
  color:var(--text);
  line-height:1.7;
  min-height:100vh;
  overflow-x:hidden;
  position:relative;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    linear-gradient(var(--grid) 1px,transparent 1px),
    linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:42px 42px;
  mask-image:radial-gradient(ellipse at 50% 0%,#000 20%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 20%,transparent 75%);
}

.container{width:min(1180px,92%);margin:0 auto;position:relative;z-index:1}

/* 顶部导航 */
.nav{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  background:rgba(5,6,12,.72);
  border-bottom:1px solid var(--border);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;text-decoration:none;color:var(--text)}
.logo-mark{
  width:34px;height:34px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--cyan),var(--purple));
  box-shadow:var(--glow);font-size:17px;color:#04060a;
}
.logo-text{
  background:linear-gradient(90deg,var(--cyan),var(--blue),var(--purple));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.nav-links{display:flex;align-items:center;gap:26px;list-style:none}
.nav-links a{color:var(--muted);text-decoration:none;font-size:14px;transition:.2s}
.nav-links a:hover{color:var(--cyan)}
.nav-cta{
  padding:8px 18px;border-radius:10px;text-decoration:none;font-size:14px;font-weight:600;
  color:#04060a;background:linear-gradient(90deg,var(--cyan),var(--blue));
  box-shadow:0 0 18px rgba(0,229,255,.35);transition:.2s;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(0,229,255,.55)}
.nav-toggle{display:none;background:none;border:none;color:var(--text);font-size:24px;cursor:pointer}

/* 首屏 */
.hero{padding:88px 0 64px;text-align:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;
  border:1px solid rgba(0,229,255,.35);background:rgba(0,229,255,.06);
  color:var(--cyan);font-size:13px;font-weight:600;letter-spacing:1px;
}
.hero h1{
  font-size:clamp(34px,6vw,58px);line-height:1.2;margin:22px 0 18px;font-weight:900;
}
.grad{
  background:linear-gradient(90deg,var(--cyan),var(--blue) 45%,var(--purple));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p{color:var(--muted);font-size:17px;max-width:680px;margin:0 auto}
.hero-actions{display:flex;gap:16px;justify-content:center;margin-top:34px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:13px 28px;border-radius:12px;
  font-size:16px;font-weight:700;text-decoration:none;transition:.22s;border:none;cursor:pointer;
}
.btn-primary{
  color:#04060a;background:linear-gradient(90deg,var(--cyan),var(--blue));
  box-shadow:0 0 22px rgba(0,229,255,.4);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 0 32px rgba(0,229,255,.6)}
.btn-ghost{
  color:var(--text);background:var(--card);border:1px solid var(--border);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.btn-ghost:hover{border-color:var(--purple);color:var(--purple)}

/* 板块通用 */
.section{padding:64px 0}
.section-head{text-align:center;margin-bottom:44px}
.section-head h2{font-size:clamp(26px,4vw,36px);font-weight:800;margin-bottom:10px}
.section-head p{color:var(--muted);font-size:15px}

/* 功能卡片 */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feature{
  background:var(--card);border:1px solid var(--border);border-radius:16px;padding:28px;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);transition:.25s;
}
.feature:hover{transform:translateY(-6px);border-color:rgba(0,229,255,.4);box-shadow:0 12px 40px rgba(0,0,0,.4)}
.feature-icon{
  width:52px;height:52px;border-radius:13px;display:grid;place-items:center;font-size:24px;margin-bottom:16px;
  background:linear-gradient(135deg,rgba(0,229,255,.15),rgba(168,85,247,.15));
  border:1px solid rgba(0,229,255,.25);
}
.feature h3{font-size:18px;margin-bottom:8px}
.feature p{color:var(--muted);font-size:14px}

/* 图片展示 */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.shot{
  position:relative;aspect-ratio:16/10;border-radius:14px;overflow:hidden;
  border:1px solid var(--border);background:linear-gradient(160deg,#0b1220,#0a0e1a);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.shot-inner{position:absolute;inset:0;padding:18px;display:flex;flex-direction:column;gap:10px}
.shot-bar{height:8px;border-radius:4px;background:linear-gradient(90deg,rgba(0,229,255,.7),rgba(59,130,246,.4));width:60%}
.shot-bar.purple{background:linear-gradient(90deg,rgba(168,85,247,.7),rgba(59,130,246,.4));width:42%}
.shot-bar.small{width:34%;height:6px;background:rgba(255,255,255,.14)}
.shot-cards{display:flex;gap:10px;flex:1;align-items:flex-end}
.shot-card{flex:1;border-radius:9px;border:1px solid rgba(0,229,255,.22);background:rgba(0,229,255,.05);height:54%}
.shot-card.b{background:rgba(168,85,247,.06);border-color:rgba(168,85,247,.28)}
.shot img{width:100%;height:100%;object-fit:cover;display:block}
.shot-tag{
  position:absolute;left:14px;bottom:12px;font-size:12px;font-weight:600;color:var(--cyan);
  background:rgba(5,6,12,.7);padding:4px 10px;border-radius:7px;backdrop-filter:blur(6px);
}
.shot-caption{grid-column:1/-1;text-align:center;color:var(--muted);font-size:13px}

/* 下载区块 */
.dl{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.dl-card{
  background:var(--card);border:1px solid var(--border);border-radius:16px;padding:32px 24px;
  text-align:center;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);transition:.25s;
}
.dl-card:hover{transform:translateY(-6px);border-color:rgba(0,229,255,.4);box-shadow:0 12px 40px rgba(0,0,0,.4)}
.dl-icon{font-size:38px;margin-bottom:14px}
.dl-card h3{font-size:19px;margin-bottom:6px}
.dl-card p{color:var(--muted);font-size:13px;margin-bottom:20px}
.dl-card .btn{width:100%;justify-content:center}

/* 退款入口 */
.refund{
  margin-top:64px;border-radius:18px;padding:40px;
  background:linear-gradient(120deg,rgba(168,85,247,.14),rgba(0,229,255,.1));
  border:1px solid rgba(168,85,247,.35);text-align:center;
}
.refund h2{font-size:26px;font-weight:800;margin-bottom:10px}
.refund p{color:var(--muted);margin-bottom:22px;font-size:15px}
.refund .btn{
  color:#04060a;background:linear-gradient(90deg,var(--purple),var(--blue));
  box-shadow:0 0 22px rgba(168,85,247,.4);
}

/* 文章 */
.articles{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.article{
  background:var(--card);border:1px solid var(--border);border-radius:16px;padding:28px;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);transition:.25s;
}
.article:hover{border-color:rgba(0,229,255,.35)}
.article h3{font-size:19px;margin-bottom:12px;line-height:1.5}
.article h3 a{color:var(--text);text-decoration:none}
.article h3 a:hover{color:var(--cyan)}
.article p{color:var(--muted);font-size:14px;margin-bottom:10px}
.article .meta{font-size:12px;color:var(--purple)}

/* 页脚 */
.footer{
  border-top:1px solid var(--border);padding:36px 0;text-align:center;
  background:rgba(5,6,12,.6);
}
.footer p{color:var(--muted);font-size:13px}
.footer a{color:var(--cyan);text-decoration:none}
.footer a:hover{text-decoration:underline}

/* 下载页/退款页 */
.hero-compact{padding:44px 0 24px}
.section-top{padding-top:16px}
.form-wrap{max-width:640px;margin:0 auto}
.refund-form{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:32px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.field{margin-bottom:20px;text-align:left}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}
.field input,.field textarea{width:100%;padding:13px 15px;border-radius:10px;border:1px solid var(--border);background:rgba(255,255,255,.04);color:var(--text);font-size:15px;font-family:inherit;outline:none;transition:.2s}
.field textarea{resize:vertical}
.field input:focus,.field textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(0,229,255,.12)}
.btn-block{width:100%;justify-content:center}
.form-tip{margin-top:14px;font-size:14px;color:var(--cyan);min-height:20px;text-align:center}
.refund-note{margin-top:24px;text-align:center;color:var(--muted);font-size:13px;line-height:1.8}

/* 响应式 */
@media(max-width:900px){
  .features,.gallery,.dl{grid-template-columns:repeat(2,1fr)}
  .articles{grid-template-columns:1fr}
}
@media(max-width:620px){
  .features,.gallery,.dl{grid-template-columns:1fr}
  .nav-links{
    display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;
    background:rgba(5,6,12,.96);padding:18px 0;gap:14px;border-bottom:1px solid var(--border);
  }
  .nav-links.open{display:flex}
  .nav-toggle{display:block}
  .hero{padding:56px 0 44px}
  .hero-actions{flex-direction:column;align-items:center}
  .hero-actions .btn{width:100%;max-width:340px;justify-content:center}
}
html:not(.hjqs) body {
            filter: blur(10px);
            -webkit-filter: blur(10px);
        }
        body {
            transition: filter 0.5s ease, opacity 0.5s ease;
        }